Automatic seam welder for inner container of dish-washing machine

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to a dish-washing machine liner automatic seam welder which is used for welding an outer cover and a top cover into an integrated shell and comprises a base, a horizontal pushing mechanism, a locking mechanism, a left-right translation mechanism, a front-back translation mechanism, a seam welding mechanism and a jacking mechanism. A material placing table is arranged at the upper end of the base, a supporting table is arranged at the lower end of the base, the outer cover surrounds the side wall of the material placing table, and the top cover is placed at the top end of the material placing table and covers the outer cover. And the horizontal pushing mechanism is used for tightly attaching the outer cover to the side wall of the material placing table. The locking mechanism applies force to enable the top cover to be attached to the outer cover. The left-right translation mechanism drives the base to translate left and right. The execution end of the front-back translation mechanism moves around the joint of the top cover and the outer cover. The roll welding mechanism is arranged at the execution end of the front-back translation mechanism and rotatably welded to the joint of the outer cover and the top cover. The jacking mechanism is arranged on the base and used for jacking out the formed shell for demolding.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and in particular relates to an automatic seam welding machine for a dishwasher inner tank. Background Art

[0002] In the modern kitchen equipment manufacturing industry, dishwashers are an important tool for improving the cleaning efficiency of households and catering services. The automation and precision of their manufacturing process directly affect the performance and service life of the product. As the main component of the dishwasher, the structural stability and sealing of the dishwasher tank are crucial. In the traditional manufacturing process of dishwasher tanks, the connection between the outer cover and the top cover is mostly made by manual welding or fixed welding equipment. These methods are not only inefficient, but also difficult to ensure the welding quality, and are prone to problems such as uneven welds and poor sealing.

[0003] With the rapid development of automation technology, especially the widespread application of welding automation technology, it has become an urgent need in the industry to develop a device that can efficiently and accurately complete the integrated welding of the inner tank cover and the top cover of the dishwasher. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic rolling welding machine for the inner tank of a dishwasher, aiming to solve the technical problems of uneven weld seams and poor sealing of the inner tank in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides an automatic roll welding machine for the inner tank of a dishwasher, which is used to weld the outer cover and the top cover into an integrated outer shell, and includes a base, a horizontal push mechanism, a locking mechanism, a left-right translation mechanism, a front-back translation mechanism, a roll welding mechanism and a lifting mechanism. A material placement table is provided at the upper end of the base, and a support table is provided at the lower end of the base. The outer cover is enclosed on the side wall of the material placement table, and the top cover is placed on the top of the material placement table and covers the outer cover. The horizontal push mechanism is arranged on the base, and is used to press the outer cover against the side wall of the material placement table. The locking mechanism is arranged on the horizontal push mechanism, and a force is applied to press the top cover against the outer cover. The left-right translation mechanism is arranged on the support table and connected to the base to drive the base to translate left and right. The front-back translation mechanism is arranged on the base, and the execution end of the front-back translation mechanism moves around the connection between the top cover and the outer cover. The roll welding mechanism is arranged at the execution end of the front-back translation mechanism, and can rotatably weld the connection between the outer cover and the top cover. The lifting mechanism is arranged on the base, and is used to eject and demold the formed outer shell.

[0006] Furthermore, the horizontal pushing mechanism includes a left pushing component and a right pushing component, both of which are arranged on the base; the left pushing component includes a left pushing slide rail, a left pushing motor, a left pushing gear, a left pushing gear bar and a left moving plate, the driving end of the left pushing motor is connected to the left pushing gear bar, and the left moving plate is threadedly connected to the left pushing gear bar through the left tooth gear; the front and rear ends of the left pushing gear bar are also respectively provided with left pushing slide rails, and the left moving plate is slidably connected to the left pushing slide rail through the left pushing slider; under the drive of the left pushing motor, the left moving plate moves along the left pushing slide rail in the direction of approaching or moving away from the material loading platform to horizontally push the outer cover.

[0007] Furthermore, the locking mechanism is divided into two identical groups and are respectively arranged on the left push assembly and the right push assembly, including a locking cylinder, a clamping member, a connecting member and a rotating roller. The locking cylinder is arranged on the left movable plate, and the driving end of the locking cylinder is connected to the connecting member, and the other end of the connecting member is connected to the rotating roller to drive the rotating roller to rotate, and the rotating roller is connected to the clamping member, and the clamping member clamps the top cover under the action of the rotating roller.

[0008] Furthermore, the left-right moving mechanism includes a first screw rod, a first slide rail, and a first motor. The driving end of the first motor is connected to the first screw rod, and the base is threadedly connected to the first screw rod through a first ring seat. The front and rear ends of the first screw rod are also provided with first slide rails, and the base is slidably connected to the first slide rail through a first slider. Driven by the first motor, the base moves left-right along the guide of the first slide rail.

[0009] Furthermore, a vertical frame is provided on the base, the vertical frame is located on one side of the material placement table, and a front-to-back translation mechanism is provided on the vertical frame, including a driving platform, a second screw rod, a second slide rail, and a second motor, the driving end of the second motor is connected to the second screw rod, and the driving platform is threadedly connected to the second screw rod through a second ring seat. The front and rear ends of the second screw rod are also respectively provided with second slide rails, and the driving platform is slidably connected to the second slide rail through a second slider. Driven by the second motor, the driving platform moves forward and backward along the guide of the second slide rail.

[0010] Furthermore, the driving platform is also provided with a lifting mechanism, which includes an operating plate, a third screw rod, a third motor, and a third slide rail. The driving end of the third motor is connected to the third screw rod, and the operating plate is threadedly connected to the third screw rod through a third ring seat. The front and rear ends of the third screw rod are also provided with third slide rails, respectively, and the operating plate is slidably connected to the third slide rails through a third slider. Driven by the third motor, the operating platform moves up and down along the guide of the third slide rail.

[0011] Furthermore, the rolling welding mechanism includes a rotating motor, a roller electrode, a roller frame and a power system. The rotating motor and the power system are both arranged on the front and rear translation mechanism. The output end of the rotating motor points vertically downward and is rotationally connected to the roller frame. The roller electrode is arranged in the roller frame and is rotationally connected to it. The output end of the power system is also connected to the roller electrode, so that the roller electrode generates heat through the current while swinging the execution angle.

[0012] Furthermore, the lifting mechanism includes a lifting cylinder and a fixed platform. The lifting cylinder is arranged at the upper end of the base. A fixed platform is provided between the material placement platform and the lifting cylinder. The edge end of the fixed platform extends out of the base and forms a limiting groove. The outer cover is clamped in the limiting groove. The outer cover moves up and down under the push of the lifting cylinder.

[0013] Furthermore, a cooling device is provided on one side of the support platform, and the cooling device is fixedly connected to the rolling welding mechanism through a cooling pipe to transport the cooling liquid to the connection between the outer cover and the top cover.

[0014] Furthermore, a surrounding protective frame cover is formed on the outer side of the support platform, and an electrically connected control panel is also provided on the support platform.

[0015] The above one or more technical solutions in the automatic seam welding machine for the inner tank of a dishwasher provided by the embodiment of the present invention have at least one of the following technical effects:

[0016] In this design, the outer cover is placed on the side wall of the material placement table, and the top cover is placed on the top of the material placement table and covers the outer cover. The horizontal push mechanism is started to press the outer cover against the side wall of the material placement table; then the locking mechanism works to fix the top cover. According to the preset program, the left and right translation mechanism and the front and back translation mechanism work together to adjust the position of the base and the roll welding mechanism. The roll welding mechanism starts to work and welds at the connection between the outer cover and the top cover along the set trajectory. After welding is completed, the lifting mechanism lifts up the finished shell to complete demoulding. The left and right translation mechanism cooperates with the front and back translation mechanism to be responsible for the overall left and right movement of the base and the front and back movement of the roll welding mechanism, ensuring that the position can be flexibly adjusted during welding and covering the entire welding area. The roll welding mechanism transfers heat to the contact surface to achieve melting welding of the outer cover and the top cover. Precise movement control and welding pressure ensure the uniformity and sealing of the weld, and improve the overall quality of the product. Automated operation greatly shortens the welding cycle, reduces manual intervention, and significantly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 An overall diagram of an automatic seam welding machine for dishwasher liner provided by an embodiment of the present invention;

[0019] Figure 2 A three-dimensional diagram of the automatic seam welding machine for the inner tank of a dishwasher provided by an embodiment of the present invention, ignoring the outer cover;

[0020] Figure 3 A disassembled diagram of the outer shell of the automatic seam welding machine for the inner tank of a dishwasher provided by an embodiment of the present invention;

[0021] Figure 4 A partial diagram of a flat push mechanism of an automatic seam welding machine for a dishwasher liner provided by an embodiment of the present invention;

[0022] Figure 5 A partial diagram of the locking mechanism of the automatic seam welding machine for the inner tank of a dishwasher provided by an embodiment of the present invention;

[0023] Figure 6 A partial diagram of the left-right translation mechanism of the automatic seam welding machine for the inner tank of a dishwasher provided by an embodiment of the present invention;

[0024] Figure 7 A three-dimensional diagram of the front-rear translation mechanism and the lifting mechanism of the automatic seam welding machine for the inner tank of a dishwasher provided by an embodiment of the present invention;

[0025] Figure 8 A partial diagram of a lifting mechanism of an automatic seam welding machine for a dishwasher liner provided by an embodiment of the present invention;

[0026] Fig. 9 A partial diagram of the seam welding mechanism of the automatic seam welding machine for the inner tank of a dishwasher provided in an embodiment of the present invention.

[0027] Among them, the reference numerals in the figure are:

[0028] 100, outer cover; 110, top cover; 120, outer shell; 130, base; 140, material placement table; 150, support table; 160, vertical frame;

[0029] 200, horizontal push mechanism; 210, left push assembly; 211, left push slide rail; 212, left push motor; 213, left push gear bar; 214, left moving plate; 215, left push gear; 216, left push slider; 220, right push assembly;

[0030] 300, locking mechanism; 310, locking cylinder; 320, clamping member; 330, connecting member; 340, rotating roller;

[0031] 400, left-right translation mechanism; 410, first screw rod; 420, first slide rail; 430, first motor; 440, first ring seat; 450, first slide block;

[0032] 500, forward and backward translation mechanism; 510, driving platform; 520, second screw rod; 530, second slide rail; 540, second motor; 550, second ring seat; 560, second slide block;

[0033] 600, lifting mechanism; 610, operating plate; 620, third screw rod; 630, third motor; 640, third slide rail; 650, third slide block; 660, third ring seat;

[0034] 700, lifting mechanism; 710, lifting cylinder; 720, fixed platform; 730, limit groove; 740, reciprocating mechanism;

[0035] 800, rolling welding mechanism; 810, rotating motor; 820, roller electrode; 830, roller frame; 840, power system;

[0036] 900, cooling device; 910, cooling pipe; 920, protection frame cover; 930, control panel. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings 1-9, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figure 1-9 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0041] In one embodiment of the present invention, Figure 1-3 As shown, an automatic roll welding machine for the inner tank of a dishwasher is provided, which is used to weld the outer cover 100 and the top cover 110 into an integrated outer shell 120, and includes a base 130, a horizontal push mechanism 200, a locking mechanism 300, a left-right translation mechanism 400, a front-back translation mechanism 500, a roll welding mechanism 800, and a lifting mechanism 700. A material placement table 140 is provided at the upper end of the base 130, and a support table 150 is provided at the lower end of the base 130. The outer cover 100 is enclosed on the side wall of the material placement table 140, and the top cover 110 is placed on the top of the material placement table 140 and covers the outer cover 100. The horizontal push mechanism 200 is provided on the base 130, and is used to make the outer cover 100 close to the side wall of the material placement table 140. The locking mechanism 300 is provided on the horizontal push mechanism 200, and applies force to make the top cover 110 close to the outer cover 100. The left-right translation mechanism 400 is arranged on the support platform 150 and connected to the base 130 to drive the base 130 to translate left-right. The front-back translation mechanism 500 is arranged on the base 130, and the execution end of the front-back translation mechanism 500 moves around the connection between the top cover 110 and the outer cover 100. The roll welding mechanism 800 is arranged at the execution end of the front-back translation mechanism 500, and can rotatably weld the connection between the outer cover 100 and the top cover 110. The lifting mechanism 700 is arranged on the base 130, and is used to eject the molded shell 120.

[0042] Specifically, in this design, the outer cover 100 is placed on the side wall of the material placement table 140, and the top cover 110 is placed on the top of the material placement table 140 and covers the outer cover 100. The horizontal push mechanism 200 is started to make the outer cover 100 close to the side wall of the material placement table 140; then the locking mechanism 300 works to fix the top cover 110. According to the preset program, the left and right translation mechanism 400 and the front and back translation mechanism 500 work together to adjust the position of the base 130 and the roll welding mechanism 800. The roll welding mechanism 800 starts to work and welds at the connection between the outer cover 100 and the top cover 110 along the set trajectory. After welding is completed, the lifting mechanism 700 lifts up the finished shell 120 to complete demoulding. The left and right translation mechanism 400 and the front and back translation mechanism 500 cooperate with each other to be responsible for the overall left and right movement of the base 130 and the front and back movement of the roll welding mechanism 800, ensuring that the position can be flexibly adjusted during the welding process to cover the entire welding area. The roll welding mechanism 800 transfers heat to the contact surface to achieve melting welding of the outer cover 100 and the top cover 110. Precise movement control and welding pressure ensure uniformity and sealing of the weld, improving the overall quality of the product. Automated operation greatly shortens the welding cycle, reduces manual intervention, and significantly improves production efficiency.

[0043] Further, if Figure 4 As shown, the horizontal push mechanism 200 includes a left push assembly 210 and a right push assembly 220, both of which are arranged on the base 130. The left push assembly 210 includes a left push slide rail 211, a left push motor 212, a left push gear 215, a left push gear bar 213 and a left movable plate 214. The driving end of the left push motor 212 is connected to the left push gear 215, and the left movable plate 214 is threadedly connected to the left push gear bar 213 through the left push gear 215. The front and rear ends of the left push gear bar 213 are also respectively provided with left push slide rails 211, and the left movable plate 214 is slidably connected to the left push slide rail 211 through a left push slider 216. Under the drive of the left push motor 212, the left movable plate 214 moves along the left push slide rail 211 in a direction close to or away from the material placement platform 140 to horizontally push the outer cover 100. Specifically, driven by the left push motor 212, the left push gear 215 rotates, and drives the left movable plate 214 to move along the left push slide rail 211 toward or away from the material placement platform 140 through the threaded connection with the left push gear bar 213. The structure of the right push assembly 220 is similar to that of the left push assembly 210, but is located on the other side of the material placement platform 140. The two work together to ensure that the outer cover 100 is stably and evenly attached to the material placement platform 140, providing a good foundation for welding work.

[0044] Further, if Figure 5As shown, the locking mechanism 300 is divided into two identical groups, and is respectively arranged on the left push assembly 210 and the right push assembly 220, including a locking cylinder 310, a clamping member 320, a connecting member 330 and a rotating roller 340. The locking cylinder 310 is arranged on the left movable plate 214, and the driving end of the locking cylinder 310 is connected to the connecting member 330, and the other end of the connecting member 330 is connected to the rotating roller 340 to drive the rotating roller 340 to rotate, and the rotating roller 340 is connected to the clamping member 320. Under the action of the rotating roller 340, the clamping member 320 clamps the top cover 110. Specifically, the locking mechanisms 300 on the left push assembly 210 and the right push assembly 220 work simultaneously, and the locking cylinder 310 drives the rotating roller 340 to rotate, thereby driving the clamping member 320 to clamp the top cover 110, and the top cover 110 and the outer cover 100 are connected and tightly connected, providing a solid foundation for subsequent welding work.

[0045] Further, if Figure 6 As shown, the left-right moving mechanism includes a first screw rod 410, a first slide rail 420, and a first motor 430. The driving end of the first motor 430 is connected to the first screw rod 410, and the base 130 is threadedly connected to the first screw rod 410 through a first ring seat 440. The front and rear ends of the first screw rod 410 are also respectively provided with first slide rails 420, and the base 130 is slidably connected to the first slide rail 420 through a first slider 450. Under the drive of the first motor 430, the base 130 moves left and right along the guidance of the first slide rail 420. Specifically, the first motor 430 drives the first screw rod 410 to rotate, and a first ring seat 440 is provided under the base 130. The first ring seat 440 is threadedly connected to the first screw rod 410, so that the base 130 moves in the direction guided by the first slide rail 420. Provide a stable and accurate moving path in the left and right directions for the welding process.

[0046] Further, if Figure 7 As shown, a vertical frame 160 is provided on the base 130, and the vertical frame 160 is located on one side of the material placement platform 140, and a front-to-back translation mechanism 500 is provided on the vertical frame 160, including a driving platform 510, a second screw rod 520, a second slide rail 530, and a second motor 540. The driving end of the second motor 540 is connected to the second screw rod 520, and the driving platform 510 is threadedly connected to the second screw rod 520 through a second ring seat 550. The front and rear ends of the second screw rod 520 are also respectively provided with a second slide rail 530, and the driving platform 510 is slidably connected to the second slide rail 530 through a second slider 560. Under the drive of the second motor 540, the driving platform 510 moves forward and backward along the guidance of the second slide rail 530. Specifically, the second motor 540 drives the second screw rod 520 to rotate, and a second ring seat 550 is provided under the driving platform 510, and the second ring seat 550 is threadedly connected to the second screw rod 520, so that the driving platform 510 moves along the direction guided by the second slide rail 530. Provides a stable and precise movement path in the forward and backward directions for the welding process.

[0047] Further, if Figure 7 As shown, the driving platform 510 is also provided with a lifting mechanism 600, which includes an operating plate 610, a third screw rod 620, a third motor 630, and a third slide rail 640. The driving end of the third motor 630 is connected to the third screw rod 620, and the operating plate 610 is threadedly connected to the third screw rod 620 through a third ring seat 660. The front and rear ends of the third screw rod 620 are also provided with third slide rails 640, respectively, and the operating plate 610 is slidably connected to the third slide rail 640 through a third slider 650. Under the drive of the third motor 630, the operating platform moves up and down along the guidance of the third slide rail 640. Specifically, the third motor 630 drives the third screw rod 620 to rotate, the operating plate 610 is connected to the third ring seat 660, and the third ring seat 660 is threadedly connected to the third screw rod 620, so that the driving platform 510 moves along the direction guided by the third slide rail 640, controls the downward position of the rolling welding mechanism 800, and performs precise welding.

[0048] Further, if Fig. 9 As shown, the rolling welding mechanism 800 includes a rotating motor 810, a roller electrode 820, a roller frame 830 and an electric power system 840. The rotating motor 810 and the electric power system 840 are both arranged on the front and rear translation mechanism 500. The output end of the rotating motor 810 points vertically downward and is rotationally connected to the roller frame 830. The roller electrode 820 is arranged in the roller frame 830 and is rotationally connected thereto. The output end of the electric power system 840 is also connected to the roller electrode 820, so that the roller electrode 820 generates heat through the current while swinging the execution angle.

[0049] Further, if Figure 8 As shown, the lifting mechanism 700 includes a lifting cylinder 710 and a fixing platform 720. The lifting cylinder 710 is arranged at the upper end of the base 130. The fixing platform 720 is arranged between the material placement platform 140 and the lifting cylinder 710. The edge end of the fixing platform 720 extends out of the base 130 and forms a limiting groove 730. The outer cover 100 is clamped in the limiting groove 730. The outer cover 100 moves up and down under the push of the lifting cylinder 710. Specifically, the lifting cylinder 710 is arranged at the upper end of the base 130, and as a driving component, provides the lifting power of the material placement platform 140. The outer cover 100 is clamped in the limiting groove 730, and moves up and down with the push of the lifting cylinder 710. After welding, the formed shell 120 is ejected and separated.

[0050] Further, if Figure 8 As shown, a reciprocating mechanism 740 is also provided on the support seat, which acts on the fixed platform 720 and is used to drive the material placement platform 140 back and forth.

[0051] Further, if Figure 2As shown, a cooling device 900 is also provided on one side of the support platform 150, and the cooling device 900 is fixedly connected to the roll welding mechanism 800 through a cooling pipe 910 (not indicated) to deliver the coolant to the connection between the outer cover 100 and the top cover 110. Specifically, when the roll welding mechanism 800 starts to work, the coolant is drawn out of the cooling device 900 and delivered to the nozzle through the cooling pipe 910 (not indicated). The nozzle precisely sprays the coolant to the connection between the outer cover 100 and the top cover 110 to achieve local cooling.

[0052] Further, if Figure 1 As shown, the outer side of the support platform 150 forms a surrounding protective frame cover 920 to prevent personal injury. The support platform 150 is also provided with an electrically connected control panel 930 to control the operation of the equipment by wire or wireless.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic seam welding machine for dishwasher inner tank, used for welding an outer cover (100) and a top cover (110) into an integrated outer shell (120), characterized in that: include A base (130) is provided with a material placement platform (140) at the upper end, and a support platform (150) is provided at the lower end of the base (130), the outer cover (100) is enclosed on the side wall of the material placement platform (140), and the top cover (110) is placed on the top of the material placement platform (140) and covers the outer cover (100); A horizontal pushing mechanism (200) is arranged on the base (130) and is used to make the outer cover (100) close to the side wall of the material placement platform (140); A locking mechanism (300) is disposed on the horizontal pushing mechanism (200) and applies force to make the top cover (110) fit the outer cover (100); A left-right translation mechanism (400) is arranged on the support platform (150) and connected to the base (130) to drive the base (130) to translate left-right; A front-to-back translation mechanism (500) is arranged on the base (130), and an execution end of the front-to-back translation mechanism (500) moves around a connection between the top cover (110) and the outer cover (100); A rolling welding mechanism (800) is arranged at the execution end of the front-rear translation mechanism (500) and is capable of rotatably welding the connection between the outer cover (100) and the top cover (110); The lifting mechanism (700) is arranged on the base (130) and is used to lift out and demold the formed shell (120).

2. The automatic seam welding machine for dishwasher liner according to claim 1, characterized in that: The horizontal push mechanism (200) comprises a left push assembly (210) and a right push assembly (220), both of which are arranged on the base (130); the left push assembly (210) comprises a left push slide rail (211), a left push motor (212), a left push gear (215), a left push gear bar (213) and a left movable plate (214); the driving end of the left push motor (212) is connected to the left push gear (215), and the left movable plate (214) is connected to the left push gear (215). 15) is threadedly connected to the left-push gear bar (213); the front and rear ends of the left-push gear bar (213) are also respectively provided with left-push slide rails (211), and the left movable plate (214) is slidably connected to the left-push slide rail (211) through a left-push slider (216); under the drive of the left-push motor (212), the left movable plate (214) moves along the left-push slide rail (211) in a direction close to or away from the material placement platform (140) to push the outer cover (100) horizontally.

3. The automatic seam welding machine for dishwasher liner according to claim 2, characterized in that: The locking mechanism (300) is divided into two identical groups and is respectively arranged on the left push component (210) and the right push component (220), and comprises a locking cylinder (310), a clamping member (320), a connecting member (330) and a rotating roller (340). The locking cylinder (310) is arranged on the left movable plate (214). The driving end of the locking cylinder (310) is connected to the connecting member (330). The other end of the connecting member (330) is connected to the rotating roller (340) to drive the rotating roller (340) to rotate. The rotating roller (340) is connected to the clamping member (320). Under the action of the rotating roller (340), the clamping member (320) clamps the top cover (110).

4. The automatic seam welding machine for dishwasher liner according to claim 1, characterized in that: The left-right moving mechanism comprises a first screw rod (410), a first slide rail (420), and a first motor (430); the driving end of the first motor (430) is connected to the first screw rod (410); the base (130) is threadedly connected to the first screw rod (410) via a first ring seat (440); the front and rear ends of the first screw rod (410) are also respectively provided with the first slide rail (420); the base (130) is slidably connected to the first slide rail (420) via a first slider (450); under the drive of the first motor (430), the base (130) moves left-right along the guide of the first slide rail (420).

5. The automatic seam welding machine for dishwasher liner according to claim 1, characterized in that: A vertical frame (160) is arranged on the base (130), and the vertical frame (160) is located on one side of the material placement platform (140). The vertical frame (160) is provided with the front-rear translation mechanism (500), which includes a driving platform (510), a second screw rod (520), a second slide rail (530), and a second motor (540). The driving end of the second motor (540) is connected to the second screw rod (520), and the driving platform (510) is threadedly connected to the second screw rod (520) through a second ring seat (550); the front and rear ends of the second screw rod (520) are also respectively provided with the second slide rail (530), and the driving platform (510) is slidably connected to the second slide rail (530) through a second slider (560); under the drive of the second motor (540), the driving platform (510) moves forward and backward along the guide of the second slide rail (530).

6. The automatic seam welding machine for dishwasher liner according to claim 5, characterized in that: The driving platform (510) is also provided with a lifting mechanism (600), and the lifting mechanism (600) includes an operating plate (610), a third screw rod (620), a third motor (630), and a third slide rail (640). The driving end of the third motor (630) is connected to the third screw rod (620), and the operating plate (610) is threadedly connected to the third screw rod (620) through a third ring seat (660); the front and rear ends of the third screw rod (620) are also respectively provided with the third slide rail (640), and the operating plate (610) is slidably connected to the third slide rail (640) through a third slider (650); under the drive of the third motor (630), the operating platform moves up and down along the guide of the third slide rail (640).

7. The automatic seam welding machine for dishwasher inner tank according to claim 1, characterized in that: The rolling welding mechanism (800) comprises a rotating motor (810), a roller electrode (820), a roller frame (830) and an electric power system (840); the rotating motor (810) and the electric power system (840) are both arranged on the front-rear translation mechanism (500); the output end of the rotating motor (810) points vertically downward and is rotationally connected to the roller frame (830); the roller electrode (820) is arranged in the roller frame (830) and is rotationally connected thereto; the output end of the electric power system (840) is also connected to the roller electrode (820), so that the roller electrode (820) generates heat through electric current while swinging to an execution angle.

8. The automatic seam welding machine for dishwasher inner tank according to any one of claims 1 to 7, characterized in that: The lifting mechanism (700) comprises a lifting cylinder (710) and a fixed platform (720), wherein the lifting cylinder (710) is arranged at the upper end of the base (130), and the fixed platform (720) is arranged between the material placement platform (140) and the lifting cylinder (710), and the edge end of the fixed platform (720) extends out of the base (130) and forms a limiting groove (730), and the outer cover (100) is clamped in the limiting groove (730), and the outer cover (100) moves up and down under the push of the lifting cylinder (710).

9. The automatic seam welding machine for dishwasher inner tank according to any one of claims 1 to 7, characterized in that: A cooling device (900) is also provided on one side of the support platform (150), and the cooling device (900) is fixedly connected to the rolling welding mechanism (800) via a cooling pipe (910) so as to transport cooling liquid to the connection between the outer cover (100) and the top cover (110).

10. The automatic seam welding machine for dishwasher inner tank according to any one of claims 1 to 7, characterized in that: A surrounding protective frame cover (920) is formed on the outer side of the support platform (150), and an electrically connected control panel (930) is also provided on the support platform (150).

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