Sealing welding equipment and sealing welding method

Abstract

The present application provides a welding sealing device and a welding sealing method thereof, including a frame; a spot welding machine assembly, the spot welding machine assembly including a spot welding machine unit installed on the frame, a first spot welding base and a second spot welding base electrically connected to the spot welding machine unit, and a spot welding drive unit; a bellows installed on the second spot welding base; an exhaust pipe installed on the first spot welding base. The present application connects the first spot welding base and the second spot welding base through the bellows, and a vacuum chamber can be enclosed between the bellows, the first spot welding base and the second spot welding base; the exhaust pipe can be connected to an external exhaust device, so that the vacuum chamber can be evacuated to achieve the vacuum degree required for product welding. Therefore, the welding sealing device provided in the embodiment of the present application can create a good sealing environment, and can be adaptively adjusted according to the vacuum degree required for welding of different products, thereby improving the welding quality of the product.

Description

Technical Field

[0001] The present application belongs to the technical field of welding equipment, and more specifically, relates to a sealing welding device and a sealing welding method thereof. Background Art

[0002] Products with high welding quality requirements need to be welded in a closed environment to avoid contamination of the product by external debris and improve the welding quality of the product.

[0003] However, current welding equipment cannot create a good closed environment for spot welding products, thereby affecting the welding effect and quality of the products. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a sealing device and a sealing method thereof to solve the problem existing in the related art: the current welding equipment cannot create a good sealing environment and affects the welding quality.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0006] Provided is a sealing and welding device, comprising:

[0007] frame;

[0008] A spot welding machine assembly, the spot welding machine assembly comprising a spot welding machine unit mounted on the frame, a first spot welding base and a second spot welding base electrically connected to the spot welding machine unit, and a spot welding drive unit for driving the second spot welding base to move closer to or away from the first spot welding base, the first spot welding base and the spot welding drive unit being mounted on the frame, respectively, and the spot welding drive unit being connected to the second spot welding base;

[0009] a bellows, mounted on the second spot welding base, and configured to be compressed when in contact with the first spot welding base, so as to enclose a vacuum chamber with the second spot welding base and the first spot welding base;

[0010] An exhaust pipe is installed on the first spot welding base. The first spot welding base is provided with a channel connecting the exhaust pipe and the vacuum chamber.

[0011] In this structure, the present application connects the first spot welding base to the second spot welding base through a bellows. Due to the expansion and contraction performance of the bellows, when the spot welding drive unit drives the second spot welding base to connect with the first spot welding base, the spot welding machine assembly is turned on and the spot welding operation of the product is performed. A vacuum chamber can be enclosed between the bellows, the first spot welding base, and the second spot welding base; the exhaust pipe can be connected to an external exhaust device, so that the vacuum chamber can be evacuated to achieve the vacuum level required for product welding. Therefore, the sealing and welding equipment provided in the embodiment of the present application can create a good sealing environment, and can be adaptively adjusted according to the vacuum level required for welding of different products, thereby improving the welding quality of the product.

[0012] In one embodiment, an air inlet pipe communicating with the channel is installed on the first spot welding base, the air inlet pipe is spaced apart from the exhaust pipe, and the air inlet pipe is used to input rare gas into the vacuum chamber.

[0013] With this structure, rare gas can be input into the vacuum chamber through the air inlet pipe. The rare gas can protect the welding product, thereby further improving the welding quality and yield rate of the welding product.

[0014] In one embodiment, the first spot welding base includes a supporting base installed on the frame and electrically connected to the spot welding machine unit, a spot welding base installed on the supporting base, and a first spot welding head installed on the spot welding base, a first air duct is provided on the supporting base, a second air duct is provided on the spot welding base, an air hole connected to the second air duct is provided on the side of the spot welding base facing the bellows, the first air duct is connected to the exhaust pipe and the second air duct, the first air duct, the second air duct and the air hole are connected to form the channel; the air inlet pipe is installed on the spot welding base, and the air inlet pipe is connected to the second air duct.

[0015] This structure can support and position the first workpiece to be welded by the first spot welding head, support and position the first spot welding head by the spot welding base, support and position the spot welding base by the supporting base, and electrically connect the spot welding machine unit to the spot welding base.

[0016] In one embodiment, the spot welding base includes a support plate installed on the support base, a support seat installed on the side of the support plate facing the bellows, and a cover body mounted on the support seat, the first spot welding head is installed on the support seat and extends out of the cover body, and the air hole is provided on the side of the cover body facing the bellows; a first air duct is provided on the support seat, and a second air duct connecting the first air duct and the first air duct is provided on the support plate, the inner circumference of the cover body and the outer circumference of the support seat are spaced apart to form a third air duct, the third air duct connects the first air duct and the air hole, and the first air duct, the second air duct and the third air duct are connected to form the second air duct; the air inlet pipe is installed on the cover body, and the air inlet pipe is connected to the third air duct.

[0017] This structure can change the flow direction of the airflow by setting the second air channel as the first air channel, the second air channel and the third air channel to ensure uniformity during air extraction or inflation.

[0018] In one embodiment, there are multiple first air ducts, and the multiple first air ducts are distributed in a ring-shaped array on the support base, and each first air duct is connected to the second air duct.

[0019] With this structure, the multiple first air passages can realize multi-directional flow of air, which helps to improve the vacuum chamber's pumping efficiency.

[0020] In one embodiment, a sealing ring is installed on the side of the spot welding base facing the bellows, and the sealing ring is arranged on the outside of the air hole.

[0021] With this structure, when the bottom of the bellows abuts against the top of the cover, the sealing ring can fill the gap between the bellows and the cover, thereby improving the sealing performance of the vacuum chamber and avoiding air leakage during inflation and degassing.

[0022] In one embodiment, the second spot welding base includes a supporting top seat connected to the spot welding machine unit and a second spot welding head installed on the side of the supporting top seat facing the supporting base, the bellows is installed on the supporting top seat, and the bellows is sleeved on the second spot welding head.

[0023] This structure can support and position the second spot welding head through the support top seat, which is convenient for rapid positioning and disassembly of the second spot welding head. The second spot welding head can support and position the second workpiece to be welded.

[0024] In one embodiment, the sealing welding equipment further includes a positioning guide rod installed on the second spot welding base, and a positioning seat for the positioning guide rod to pass through is installed on the frame.

[0025] This structure can achieve directional guidance of the second spot welding base through the cooperation of the positioning guide rod and the positioning seat, thereby preventing the position of the second spot welding base from being offset.

[0026] In one embodiment, a sensing piece is installed at one end of the positioning guide rod away from the second spot welding base, and a sensor for cooperating with the sensing piece to limit the movement stroke of the second spot welding base is correspondingly installed on the frame.

[0027] This structure can monitor the stroke of the second spot welding base through the cooperation of the induction sheet and the sensor, thereby preventing the second spot welding base from exceeding the stroke and causing malfunction.

[0028] On the other hand, a welding method is provided, using the welding device as described in any of the above embodiments, the welding method comprising:

[0029] Installing the first workpiece to be welded on the first spot welding base, and installing the second workpiece to be welded on the second spot welding base;

[0030] The spot welding driving unit drives the second spot welding base to move toward the first spot welding base, and makes the end of the bellows away from the second spot welding base abut against the top surface of the first spot welding base;

[0031] The vacuum equipment extracts the air in the vacuum chamber through the vacuum pipe until the set target vacuum degree is reached;

[0032] The spot welding driving unit continues to drive the second spot welding base to move toward the first spot welding base to compress the bellows until the second spot welding base abuts against the first spot welding base.

[0033] The product obtained by the sealing welding method of this structure is of good quality and high yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 A schematic structural diagram of the sealing device provided in an embodiment of the present application;

[0036] Figure 2 for Figure 1 Schematic diagram of the structure after removing the sealing cover;

[0037] Figure 3A schematic diagram of the structure of the connection between the spot welding assembly, bellows and rack provided in an embodiment of the present application;

[0038] Figure 4 A schematic diagram of the structure of the connection between the first spot welding base, the exhaust pipe and the intake pipe provided in an embodiment of the present application;

[0039] Figure 5 for Figure 4 Schematic diagram of the decomposition;

[0040] Figure 6 for Figure 4 A partial cross-sectional schematic diagram of

[0041] Figure 7 A schematic diagram of the structure of the connection between the second spot welding base and the bellows provided in an embodiment of the present application;

[0042] Figure 8 for Figure 7 Schematic diagram of the decomposition;

[0043] Figure 9 for Figure 7 Schematic cross-section diagram of ;

[0044] Figure 10 A schematic diagram of the structure of the connection between the feed bin or discharge bin and the material tray provided in an embodiment of the present application.

[0045] Among them, the main marks of the drawings in the figure are:

[0046] 1. Frame; 2. Bellows; 3. Exhaust pipe; 4. Intake pipe;

[0047] 5. Spot welding machine assembly; 51. First spot welding base; 511. Channel; 512. Support base; 5121. First air channel; 513. Spot welding base; 5130. Air hole; 5131. Second air channel; 5132. Support plate; 5133. Support seat; 5134. Cover; 5135. First air channel; 5136. Second air channel; 5137. Third air channel; 514. First spot welding head; 515. Protective cover; 516. Sealing ring; 517. First locking piece; 52. Second spot welding base; 521. Support top seat; 522. Second spot welding head; 523. Second locking piece; 53. Spot welding drive unit; 54. Conductive copper plate; 55. Positioning guide rod; 56. Positioning seat; 57. Induction sheet; 58. Sensor;

[0048] 6. Feed bin; 61. First box body; 62. First door panel; 63. Second door panel; 64. First slide plate;

[0049] 7. Discharge bin; 71. Second box body; 72. First box door; 73. Second box door; 74. Second slide;

[0050] 8. Sealing cover; 9. Material tray. DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0052] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0053] In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0054] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0056] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0057] See also Figures 1 to 3 , the sealing welding device provided in the embodiment of the present application is now described. The sealing welding device includes a frame 1, a spot welding machine assembly 5, a bellows 2 and an exhaust pipe 3. Among them, the spot welding machine assembly 5 includes a spot welding machine unit (not shown) installed on the frame 1, a first spot welding base 51 and a second spot welding base 52 electrically connected to the spot welding machine unit, and a spot welding drive unit 53 for driving the second spot welding base 52 to move closer to or away from the first spot welding base 51. Specifically, the first spot welding base 51 is installed on the frame 1, and the first spot welding base 51 and the second spot welding base 52 are relatively spaced apart. The second spot welding base 52 can be arranged above the first spot welding base 51; the first spot welding base 51 and the second spot welding base 52 can be electrically connected to the spot welding machine unit through a conductive copper plate 54, respectively. When the first spot welding base 51 abuts the second spot welding base 52, the spot welding machine assembly 5 is turned on and can perform spot welding operations. The spot welding drive unit 53 is mounted on the frame 1, and the spot welding drive unit 53 is connected to the second spot welding base 52, and can drive the second spot welding base 52 to rise and fall. Among them, the spot welding drive unit 53 can be a cylinder, an electric cylinder, an oil cylinder, etc., which is not limited here. It should be noted that the spot welding machine assembly 5 can be a spot welding machine commonly used on the market, and its specific structure and working principle are not described here one by one. For example, a control system for controlling the spot welding machine assembly 5 is provided in the frame 1 to realize automatic control of the sealing equipment.

[0058] The bellows 2 is mounted on the second spot welding base 52, and the bellows 2 has certain telescopic properties. Under the drive of the spot welding drive unit 53, the second spot welding base 52 and the bellows 2 descend and approach the first spot welding base 51; when the bottom of the bellows 2 abuts the top of the first spot welding base 51, a vacuum chamber is formed between the bellows 2, the second spot welding base 52, and the first spot welding base 51. As the second spot welding base 52 and the bellows 2 continue to descend, the bellows 2 gradually compresses; when the second spot welding base 52 abuts the first spot welding base 51, the spot welding machine assembly 5 is turned on and spot welding operations can be performed. When the spot welding drive unit 53 drives the second spot welding base 52 and the bellows 2 to rise, the bellows 2 gradually extends from a compressed state to an initial position state, so that subsequent operations can be repeated.

[0059] The exhaust pipe 3 is mounted on the first spot welding base 51. A passage 511 is formed on the first spot welding base 51, connecting the exhaust pipe 3 to the vacuum chamber. The exhaust pipe 3 can be connected to an exhaust device, which can be built into the welding equipment or external. The exhaust device and the exhaust pipe 3 can be used to extract air from the vacuum chamber to adjust the vacuum level in the vacuum chamber, thereby adjusting the vacuum environment required for welding.

[0060] This structure connects the first spot welding base 51 and the second spot welding base 52 through the bellows 2. Due to the telescopic performance of the bellows 2, when the spot welding drive unit 53 drives the second spot welding base 52 to connect with the first spot welding base 51, the spot welding machine assembly 5 is turned on and the spot welding operation of the product is performed. The bellows 2, the first spot welding base 51 and the second spot welding base 52 can be enclosed to form a vacuum chamber; the exhaust pipe 3 can be connected to an external exhaust device, so that the vacuum chamber can be evacuated to achieve the vacuum level required for product welding. Therefore, the sealing and welding equipment provided in the embodiment of the present application can create a good sealing environment, and can be adaptively adjusted according to the vacuum level required for welding of different products, thereby improving the welding quality of the product.

[0061] In one embodiment, see Figure 4 As a specific embodiment of the sealing welding equipment provided in the embodiment of the present application, an air inlet pipe 4 connected to the channel 511 is installed on the first spot welding base 51, and the air inlet pipe 4 is spaced apart from the exhaust pipe 3. The air inlet pipe 4 is used to input rare gas into the vacuum chamber. Specifically, the central axis of the exhaust pipe 3 can be set in the vertical direction, and the central axis of the air inlet pipe 4 can be set in the horizontal direction, that is, the length direction of the exhaust pipe 3 is perpendicular to the length direction of the air inlet pipe 4. Among them, the rare gas can be neon, xenon, etc., and the concentration of the rare gas input into the vacuum chamber can reach more than 99.9%, which is not the only limitation here. In this structure, rare gas is added to the vacuum chamber through the air inlet pipe 4, and the rare gas can protect the welding product, which can further improve the welding quality and yield rate of the welding product. The vacuum degree in the vacuum chamber can be adjusted by the air inlet pipe 4 and the exhaust pipe 3, and the vacuum degree can meet the requirements of high vacuum (less than or equal to 1.0*10 -3 Pa) and low vacuum (less than or equal to 100 Pa). Therefore, when no noble gas is introduced into the vacuum chamber, the sealing equipment can achieve both high-vacuum sealing and low-vacuum sealing. When noble gas is introduced into the vacuum chamber, the sealing equipment can achieve both high-vacuum gas-supplementing sealing and low-vacuum gas-supplementing sealing. The sealing equipment can perform four sealing operation modes, allowing different sealing operation modes to be selected according to different welding products to meet different welding process requirements and thereby improve welding quality.

[0062] In some embodiments, a first solenoid valve may be installed on the exhaust pipe 3, and a second solenoid valve may be installed on the intake pipe 4. The first solenoid valve can be used to control the opening and closing of the exhaust pipe 3, and the second solenoid valve can be used to control the opening and closing of the intake pipe 4. When gas is extracted from the vacuum chamber through the exhaust pipe 3, the first solenoid valve opens and the second solenoid valve closes, that is, the vacuum chamber is connected to the exhaust pipe 3 through the channel 511. When rare gas is input into the vacuum chamber through the intake pipe 4, the first solenoid valve closes and the second solenoid valve opens, that is, the vacuum chamber is connected to the intake pipe 4 through the channel 511. This structure, by controlling the exhaust pipe 3 and the intake pipe 4 respectively through the first solenoid valve and the second solenoid valve, prevents cross-mixing of gases and improves the reliability of gas extraction and supply.

[0063] In one embodiment, see Figure 5 and Figure 6 As a specific embodiment of the sealing and welding equipment provided in the embodiment of the present application, the first spot welding base 51 includes a supporting base 512 installed on the frame 1 and electrically connected to the spot welding machine unit, a spot welding base 513 installed on the supporting base 512 and a first spot welding head 514 installed on the spot welding base 513, a first air duct 5121 is provided on the supporting base 512, a second air duct 5131 is provided on the spot welding base 513, and an air hole 5130 connected to the second air duct 5131 is provided on the side of the spot welding base 513 facing the bellows 2, the first air duct 5121 is connected to the exhaust pipe 3 and the second air duct 5131, and the first air duct 5121, the second air duct 5131 and the air hole 5130 are connected to form a channel 511; the air inlet pipe 4 is installed on the spot welding base 513, and the air inlet pipe 4 is connected to the second air duct 5131. Specifically, the spot welding base 513 is mounted on top of the support base 512, and the first spot welding head 514 is mounted on top of the spot welding base 513. The support base, the spot welding base 513, and the first spot welding head 514 can all be made of conductive materials, thereby enabling electrical connection to the spot welding unit. With this structure, the first spot welding head 514 can support and position the first workpiece to be welded, the spot welding base 513 can support and position the first spot welding head 514, and the support base 512 can support and position the spot welding base 513, and the spot welding unit can be electrically connected to the spot welding base 513.

[0064] In one embodiment, see Figure 5 and Figure 6 The first spot welding base 51 further includes a protective cover 515 sleeved on the support base 512 . The protective cover 515 can be made of an insulating material, thereby achieving insulation protection for the support base 512 .

[0065] In one embodiment, see Figure 5 and Figure 6As a specific embodiment of the sealing welding equipment provided in the embodiment of the present application, the spot welding base 513 includes a support plate 5132 installed on the support base 512, a support seat 5133 installed on the side of the support plate 5132 facing the corrugated tube 2, and a cover body 5134 sleeved on the support seat 5133. The first spot welding head 514 is installed on the support seat 5133 and extends out of the cover body 5134. The cover body 5134 is provided with an air hole 5130 on the side facing the corrugated tube 2; the support seat 5133 is provided with a first air duct 5135, and the support seat 5133 is provided with a first air duct 5135. The support plate 5132 defines a second air passage 5136 connecting the first air passage 5121 with the first air passage 5135. A third air passage 5137 is formed between the inner circumference of the cover 5134 and the outer circumference of the support base 5133. The third air passage 5137 connects the first air passage 5135 with the air hole 5130. The first air passage 5135, the second air passage 5136, and the third air passage 5137 are connected to form the second air passage 5131. The air inlet pipe 4 is mounted on the cover 5134 and communicates with the third air passage 5137. Specifically, a cylindrical protrusion is formed on the bottom of the support plate 5132, and a groove is defined on the support base 512 for the protrusion to extend into. The first air passage 5121 communicates with the groove. The support base 5133 is mounted on top of the support plate 5132. The support base 5133 is generally cylindrical in configuration, and a positioning groove is defined on the top of the support base 5133 for positioning and mounting the first spot welding head 514. A first air duct 5135 is defined on the support base 5133 in a direction perpendicular to the axis of the support base 5133, and a second air duct 5136 is defined on the support plate 5132 along its axis. The cover 5134 is generally cylindrical in configuration and is coaxially disposed with the support base 5133 to ensure a consistent spacing between the inner circumference of the cover 5134 and the outer circumference of the support base 5133. The cover 5134 can be made of an insulating material, thereby providing protection for the support plate 5132 and the support base 5133. The first spot welding head 514 extends out of the housing 5134, and the end of the first spot welding head 514 extending out of the housing 5134 is higher than the top surface of the housing 5134, so as to facilitate contact and communication with the second spot welding base 52. This structure, by configuring the second air channel 5131 as a first air channel 5135, a second air channel 5136, and a third air channel 5137, can change the flow direction of the airflow to ensure uniformity during exhaustion or inflation.

[0066] In one embodiment, see Figure 5 and Figure 6 The first spot welding base 51 further includes a first locking member 517 for locking the first spot welding head 514 to the support base 5133. The first locking member 517 is mounted on the support base 5133. The first locking member 517 can be a nut, and the first locking member 517 can be detachably connected to the support base 5133 through a thread.

[0067] In one embodiment, see Figure 5 and Figure 6 As a specific embodiment of the sealing and welding equipment provided in the embodiment of the present application, there are multiple first air ducts 5135, and the multiple first air ducts 5135 are distributed in a ring-shaped array on the support base 5133, and each first air duct 5135 is connected to the second air duct 5136. Specifically, the multiple first air ducts 5135 are all arranged in a horizontal plane, one end of each first air duct 5135 is connected to the second air duct 5136, and the other end of each second air duct 5136 is connected to the third air duct 5137. With this structure, the multiple first air ducts 5135 can realize multi-directional circulation of airflow, which helps to improve the exhaust efficiency of the vacuum chamber.

[0068] In one embodiment, see Figure 4 As a specific embodiment of the sealing and welding equipment provided in the embodiment of the present application, a sealing ring 516 is installed on the side of the spot welding base 513 facing the bellows 2, and the sealing ring 516 is arranged on the outside of the air hole 5130. Specifically, the number of the air holes 5130 can be multiple, and the multiple air holes 5130 are evenly distributed on the top of the cover 5134, which helps to improve the uniformity and efficiency of inflation and exhaust. With this structure, when the bottom of the bellows 2 abuts the top of the cover 5134, the sealing ring 516 can fill the gap between the bellows 2 and the cover 5134, thereby improving the sealing performance of the vacuum chamber and avoiding air leakage during inflation and exhaust.

[0069] In one embodiment, see Figure 5 The top of the cover 5134 is provided with an annular groove for accommodating the sealing ring 516, thereby enabling the positioning and installation of the sealing ring 516. The sealing ring 516 has a certain plastic deformation ability and can be deformed under the extrusion of the bellows 2, which can further improve the sealing performance.

[0070] In one embodiment, see Figures 7 to 9 As a specific embodiment of the sealing and welding equipment provided in the embodiment of the present application, the second spot welding base 52 includes a support top seat 521 connected to the spot welding machine unit and a second spot welding head 522 installed on the side of the support top seat 521 facing the support base 512, and the bellows 2 is installed on the support top seat 521, and the bellows 2 is sleeved on the second spot welding head 522. Specifically, the support top seat 521 and the spot welding machine unit can be connected through a conductive copper plate 54. The support top seat 521 and the second spot welding head 522 can both be made of conductive material. With this structure, the second spot welding head 522 can be supported and positioned by the support top seat 521, which facilitates the rapid positioning and disassembly of the second spot welding head 522. The second spot welding head 522 can be supported and positioned to achieve the second workpiece to be welded.

[0071] In one embodiment, see Figure 8 and Figure 9 The second spot welding base 52 may further include a second locking member 523 for locking the second spot welding head 522 to the support top 521. The second locking member 523 is mounted on the support top 521, thereby enabling detachable installation of the second spot welding head 522. The second locking member 523 may be a nut, and the second locking member 523 and the support top 521 may be detachably connected via threads.

[0072] In one embodiment, the second spot welding head 522 is spaced relative to the first spot welding head 514 and is positioned above the first spot welding head 514. When the spot welding drive unit 53 drives the second spot welding head 522 into contact with the first spot welding head 514, the spot welding machine assembly 5 is turned on to perform the spot welding operation. At this time, the bellows 2 is in a compressed state, but has not reached its maximum compression, thereby protecting the bellows 2.

[0073] In one embodiment, see Figure 3 As a specific embodiment of the sealing welding device provided in the embodiment of the present application, the sealing welding device also includes a positioning guide rod 55 installed on the second spot welding base 52, and a positioning seat 56 for the positioning guide rod 55 to pass through is installed on the frame 1. Specifically, the length direction of the positioning guide rod 55 remains consistent along the movement direction of the second spot welding base 52; the positioning seat 56 is provided with a through hole for the positioning guide rod 55 to pass through. This structure, through the cooperation between the positioning guide rod 55 and the positioning seat 56, can achieve directional guidance of the second spot welding base 52, preventing the position of the second spot welding base 52 from shifting.

[0074] In one embodiment, see Figure 3 As a specific embodiment of the sealing welding device provided in an embodiment of the present application, a sensing piece 57 is mounted on the end of the positioning guide rod 55 away from the second spot welding base 52. A corresponding sensor 58 is mounted on the frame 1 for cooperating with the sensing piece 57 to limit the travel of the second spot welding base 52. Specifically, the sensing piece 57 is mounted on the end of the positioning guide rod 55 that passes through the positioning seat 56. This structure, through the cooperation of the sensing piece 57 and the sensor 58, can monitor the travel of the second spot welding base 52, preventing the second spot welding base 52 from exceeding its travel range and causing malfunctions.

[0075] In some embodiments, there may be two sensors 58, which may be spaced apart on the frame 1. When the sensing sheet 57 cooperates with the upper sensor 58 for sensing, the maximum upward stroke of the second spot welding base 52 may be limited; when the sensing sheet 57 cooperates with the lower sensor 58 for sensing, the maximum downward stroke of the second spot welding base 52 may be limited.

[0076] In one embodiment, see Figure 1As a specific embodiment of the sealing and welding equipment provided in the embodiment of the present application, the sealing and welding equipment also includes a sealing cover 8 covered on the frame 1, a feed bin 6 installed at one end of the sealing cover 8, and a discharge bin 7 installed at the other end of the sealing cover 8, and the feed bin 6 and the discharge bin 7 are respectively connected to the sealing cover 8. In this structure, the feed bin 6 can be used to supply the parts to be welded into the sealing cover 8, and the discharge bin 7 can be used to take out the products in the sealing cover 8 after spot welding. The cooperation of the sealing cover 8, the feed bin 6, and the discharge bin 7 can seal the spot welding machine assembly 5, which can further improve the sealing performance of the welding.

[0077] In one embodiment, see Figure 10 The feed bin 6 may include a first box body 61 mounted on the sealing cover 8, a first door panel 62 mounted on the first box body 61, and a second door panel 63 mounted between the first box body 61 and the sealing cover 8. The second door panel 63 may control the connection and disconnection between the first box body 61 and the sealing cover 8. The feed bin 6 may also include a first slide plate 64 slidably mounted in the first box body 61. The first slide plate 64 may be used to support the material tray 9 and may be slid into the sealing cover 8 to facilitate the operator's access.

[0078] In one embodiment, see Figure 10 The discharge bin 7 may include a second box body 71 mounted on the sealing cover 8, a first box door 72 mounted on the second box body 71, and a second box door 73 mounted between the second box body 71 and the sealing cover 8. The second box door 73 may control the connection and disconnection between the second box body 71 and the sealing cover 8. The discharge bin 7 may also include a second slide 74 slidably mounted in the second box body 71. The second slide 74 may be used to support the material tray 9. The second slide 74 may slide into the sealing cover 8 to facilitate the operator to take and put.

[0079] The present application also provides a welding method, which uses the welding device provided in any of the above embodiments. The welding method includes:

[0080] 1. Install the first workpiece to be welded on the first spot welding base 51, and install the second workpiece to be welded on the second spot welding base 52. Specifically, open the first door panel 62, place the material tray 9 containing the first workpiece to be welded and the second workpiece to be welded into the first box body 61, and then close the first door panel 62. At this time, the feed bin 6 can perform dust removal, dehumidification and other operations on the material tray 9, so that the first workpiece to be welded and the second workpiece to be welded can be pre-treated before spot welding. The sealing cover 8 is equipped with insulating gloves that extend into the interior thereof. The operator can open the second door panel 63 with his hands through the insulating gloves, slide the first slide plate 64 into the sealing cover 8, and move the material tray 9 on the first slide plate 64 to the loading position of the sealing cover 8. Subsequently, slide the first slide plate 64 into the first box body 61, and close the second door panel 63. Afterwards, the operator installs the first workpiece to be welded on the first spot welding head 514 of the first spot welding base 51 and installs the second workpiece to be welded on the second spot welding head 522 of the second spot welding base 52, completing the loading operation.

[0081] 2. The spot welding drive unit 53 drives the second spot welding base 52 to move toward the first spot welding base 51, and causes the end of the bellows 2 away from the second spot welding base 52 to abut against the top surface of the first spot welding base 51. Specifically, when the bottom of the bellows 2 abuts against the top of the first spot welding base 51, a vacuum chamber is formed between the bellows 2, the first spot welding base 51, and the second spot welding base 52, thereby enclosing and sealing the first spot welding head 514 and the second spot welding head 522.

[0082] 3. The air extraction device extracts the air in the vacuum chamber through the exhaust pipe 3 until the set target vacuum degree is reached. Specifically, the air in the vacuum chamber can be discharged through the channel 511 and the exhaust pipe 3 via the air extraction device.

[0083] 4. The spot welding drive unit 53 continues to drive the second spot welding base 52 toward the first spot welding base 51 to compress the bellows 2 until the second spot welding base 52 abuts the first spot welding base 51. Specifically, the second spot welding base 52 continues to move, compressing the bellows 2. When the second spot welding head 522 contacts the first spot welding head 514, the spot welding machine assembly 5 is turned on and can perform spot welding on the first and second parts to be welded. At this time, the sensor 58 cooperates with the induction plate 57 to sense the force.

[0084] The sealing method provided in the embodiment of the present application may further include a rare gas filling step between steps 3 and 4, specifically, a gas supply device injects rare gas into the vacuum chamber via the gas inlet pipe 4 and the channel 511. The type and concentration of the rare gas can be adjusted according to actual needs. For example, neon or xenon with a concentration of 99% or more may be filled, but this is not intended to be a limitation.

[0085] The sealing method provided in the embodiment of the present application may also include a material removal step located after step 4, specifically: the operator transfers the spot-welded product on the first spot welding base 51 to the material tray 9 at the unloading position. When the material tray 9 is full, the second box door 73 of the discharge bin 7 is opened, the second slide 74 is pulled out, and the material tray 9 is placed on the second slide 74; then, the second slide 74 is slid into the second box body 71, and the second box door 73 is closed. The discharge bin 7 can also perform dust removal, dehumidification and other treatments on the products after welding to ensure product quality. Finally, the first box door 72 is opened and the material tray 9 is taken out.

[0086] The sealing method provided in the embodiment of the present application is based on the repetitive operation of the above steps to achieve continuous welding operation. Moreover, the product obtained based on the sealing method is of good quality and has a high yield rate.

[0087] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0088] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. Sealing equipment, characterized in that, include: frame; A spot welding machine assembly, the spot welding machine assembly comprising a spot welding machine unit mounted on the frame, a first spot welding base and a second spot welding base electrically connected to the spot welding machine unit, and a spot welding drive unit for driving the second spot welding base to move closer to or away from the first spot welding base, the first spot welding base and the spot welding drive unit being mounted on the frame, respectively, and the spot welding drive unit being connected to the second spot welding base; a bellows, mounted on the second spot welding base, and configured to be compressed when in contact with the first spot welding base, so as to enclose a vacuum chamber with the second spot welding base and the first spot welding base; An exhaust pipe is installed on the first spot welding base, and a passage connecting the exhaust pipe and the vacuum chamber is opened on the first spot welding base; An air intake pipe communicating with the channel is installed on the first spot welding base; The first spot welding base includes a support base mounted on the frame and electrically connected to the spot welding unit, a spot welding base mounted on the support base, a first air duct being provided in the support base, and a second air duct being provided in the spot welding base; The spot welding base includes a support plate mounted on the support base, a support seat mounted on the side of the support plate facing the bellows, and a cover sleeved on the support seat; The second airway comprises: A plurality of first air ducts distributed in an annular array on the support base; a second air passage on the support plate communicating with the first air passage; a third air passage formed between the inner circumference of the cover body and the outer circumference of the support seat; The side of the spot welding base facing the bellows is provided with an air hole connected to the second air channel. The first air channel, the second air channel and the air hole are connected to form the channel. The rare gas is input through the air inlet pipe and diffused to the air hole through the third air channel.

2. The sealing device according to claim 1, wherein: The air inlet pipe and the air extraction pipe are spaced apart from each other, and the air inlet pipe is used to input rare gas into the vacuum chamber.

3. The sealing device according to claim 2, wherein: The first spot welding base further includes a first spot welding head mounted on the spot welding base, the first air duct is connected to the exhaust pipe and the second air duct, the air inlet pipe is mounted on the spot welding base, and the air inlet pipe is connected to the second air duct.

4. The sealing device according to claim 3, wherein: The first spot welding head is installed on the support seat and extends out of the cover body, and the air hole is opened on the side of the cover body facing the corrugated pipe; the third air duct connects the first air duct and the air hole; the air inlet pipe is installed on the cover body, and the air inlet pipe is connected to the third air duct.

5. The sealing device according to claim 4, characterized in that: There are multiple first air ducts, and the multiple first air ducts are distributed in a ring-shaped array on the support base, and each first air duct is connected to the second air duct.

6. The sealing device according to claim 3, wherein: A sealing ring is installed on the side of the spot welding base facing the bellows, and the sealing ring is arranged on the outside of the air hole.

7. The sealing device according to any one of claims 1 to 6, characterized in that: The second spot welding base includes a support top seat connected to the spot welding machine unit and a second spot welding head installed on the side of the support top seat facing the support base. The bellows is installed on the support top seat and is sleeved on the second spot welding head.

8. The sealing device according to any one of claims 1 to 6, characterized in that: The sealing welding equipment further comprises a positioning guide rod installed on the second spot welding base, and a positioning seat for the positioning guide rod to pass through is installed on the frame.

9. The sealing device according to claim 8, characterized in that: An induction sheet is installed at one end of the positioning guide rod away from the second spot welding base, and a sensor for cooperating with the induction sheet to limit the moving stroke of the second spot welding base is correspondingly installed on the frame.

10. Sealing method, characterized in that: Using the sealing device according to any one of claims 1 to 9, the sealing method includes: Installing the first workpiece to be welded on the first spot welding base, and installing the second workpiece to be welded on the second spot welding base; The spot welding driving unit drives the second spot welding base to move toward the first spot welding base, and makes the end of the bellows away from the second spot welding base abut against the top surface of the first spot welding base; The vacuum equipment extracts the air in the vacuum chamber through the vacuum pipe until the set target vacuum degree is reached; The spot welding driving unit continues to drive the second spot welding base to move toward the first spot welding base to compress the bellows until the second spot welding base abuts against the first spot welding base.

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