Vacuum cup welding device

Abstract

The invention discloses a vacuum cup welding device which comprises a machine table, a vacuum cup welding device and a welding device. The overall position adjusting mechanism is used for vertically and horizontally adjusting the position; the angle adjusting mechanism is arranged on the overall position adjusting mechanism, adjusts the vertical height and the horizontal position through the overall position adjusting mechanism and is used for adjusting the angle; and the welding mechanism is arranged on the angle adjusting mechanism, the angle of the welding mechanism is adjusted through the angle adjusting mechanism, the angle of the welding mechanism can be adjusted under the condition that the distance is not changed, and the welding mechanism can switch the scanning state and the welding state by adjusting the position of a laser convergent point. The position and angle of the welding mechanism are adjusted through the overall position adjusting mechanism and the angle adjusting mechanism, and the welding mechanism adjusts the position of the lens through the dual effects of air pressure and a supporting spring, so that laser beam convergent points are in two modes, one mode is that the laser beams converge at the welding position to generate high temperature to weld the vacuum cup, and the other mode is that the laser beams converge at the welding position to generate high temperature; and according to the other method, light spots are formed to irradiate the welding position to judge the gap condition, if the gap is larger than the error threshold value, welding is stopped, and if the gap is smaller than the error threshold value, the laser irradiation time during welding is adjusted according to the size of the gap, so that the welding quality is improved.

Description

Technical Field

[0001] This invention relates to welding apparatus, and more particularly to a welding apparatus for thermos cups. Background Technology

[0002] A thermos cup consists of an inner layer, an outer layer, and a bottom seal. During the manufacturing process, the inner and outer layers are fitted together to form a circular welding position at the mouth of the cup. Then, the inner and outer layers are welded together using laser welding technology.

[0003] For example, patent application number 202122646202.1 discloses a welding device for the mouth of a thermos cup, including an upper support and a working platform. A spring baffle is provided on the upper support, and a spring is abutted to both sides of the spring baffle. The other ends of the two springs are respectively welded and fixed to a first swing arm and a second swing arm. The first swing arm and the second swing arm are rotatably connected to the upper support by bolts. A right laser welder and a left laser welder are respectively fixed to one side of the first swing arm and the second swing arm. A first support arm and a second support arm are respectively welded and fixed to the lower end. Roller devices are provided at the bottom ends of the first support arm and the second support arm. A rotating lifting platform is fixed to the bottom of the working platform with bolts. An electric chuck is provided at the top. The electric chuck holds the thermos cup body inside. The thermos cup body is provided with a thermos cup shell on the outside. The roller devices are rotatably connected to the two symmetrical parts of the thermos cup shell.

[0004] However, the aforementioned patents mainly focus on fixing the outer layer. In fact, both the inner and outer layers need to be fixed firmly and precisely during the welding process. In addition, the weld width is very likely to have a small and acceptable error during the fixing process. Existing technologies often ignore this error and use uniform rotation of the cup body for welding. This will result in some areas being unfinished or some areas being over-welded, ultimately leading to the welding quality failing to meet the requirements. Summary of the Invention

[0005] In view of the problems mentioned in the background art, the technical problem to be solved by the present invention is to provide a thermos cup welding device.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: Thermos cup welding device, including: A machine on which a thermos cup with the mouth to be welded is fixed; An overall position adjustment mechanism, used for vertical and horizontal position adjustment; An angle adjustment mechanism is installed on the overall position adjustment mechanism. The overall position adjustment mechanism adjusts the vertical height and horizontal position, and it is used to adjust the angle. The welding mechanism is mounted on the angle adjustment mechanism and its angle is adjusted by the angle adjustment mechanism. The welding mechanism includes a mounting base and a laser welding gun mounted on the mounting base. The laser welding gun includes a gun body with a mounting cavity. Several laser generators are evenly distributed in a ring array at the top of the mounting cavity. A first lens is fixedly mounted inside the mounting cavity, and a piston ring is slidably mounted on the cavity wall between the laser generator and the first lens. A second lens is embedded in the middle of the piston ring, and a support spring is provided at the bottom end of the piston ring. A sealed adjustment cavity is formed between the second lens and the laser generator. A pressure adjustment structure is provided on the side wall of the adjustment cavity. The pressure adjustment structure and the support spring work together to adjust the position of the piston ring and the second lens, thereby adjusting the convergence position of the laser spot generated by the laser generator. During detection, the convergence point of each laser beam has a distance from the welding position, thus forming a divergent spot for scanning the welding position. During welding, all laser beams converge to a single point located at the welding position of the thermos cup.

[0007] Preferably, the adjustment structure is a cylinder that is located on the side wall of the adjustment cavity and communicates with the adjustment cavity. An adjustment piston is provided inside the cylinder. The adjustment piston is driven by an electric push rod or a cylinder. When the piston is pushed inward, the piston ring and the second lens approach the first lens, and vice versa. A boss that limits the piston ring is provided inside the mounting cavity. When the second lens abuts against the boss, that is, when the distance between the second lens and the first lens is the largest, the convergence point of each laser beam is located at the welding position.

[0008] Preferably, the overall position adjustment mechanism includes a stand, a horizontal slide rail mounted on the stand, a horizontal slider slidably mounted on the horizontal slide rail, a movable frame mounted on the horizontal slider, a vertical slide rail mounted on the movable frame, and a vertical slider slidably mounted on the slide rail. The angle adjustment mechanism is fixed on the vertical slider. A driving mechanism is provided between the two sets of slide rail sliders. The driving mechanism is a lead screw mechanism or a gear and rack mechanism driven by a motor.

[0009] Preferably, the angle adjustment mechanism includes a first link, a second link, a third link, and a fourth link that are hinged together to form a parallelogram structure. The first link is fixed to the overall position adjustment mechanism and is equipped with a drive motor that drives the second link to rotate. The third link has an extension rod extending along its length. The extension rod has a receiving cavity with a racetrack-shaped outer contour. A rotating block is rotatably provided on each side of the receiving cavity. The middle part of one rotating block is fixedly connected to the hinge axis of the fourth link, and the middle part of the other rotating block is rotatably connected to the receiving cavity. This rotating block extends out of the receiving cavity and is connected to a welding torch. A fifth link and a sixth link are rotatably connected to the two rotating blocks, and the connection points of the fifth and sixth links with the rotating blocks are symmetrical about the middle of the rotating blocks. The fifth and sixth links and the two rotating blocks form a parallelogram structure.

[0010] Preferably, the welding torch extends in a direction parallel to the second link, and its laser beam irradiates from the side of the third link towards the side of the first link. The lateral projection of the laser beam convergence point is located at the intersection of the extension line of the welding torch and the extension line of the first link.

[0011] Preferably, the machine base is equipped with a fixing structure, which includes: A rotating table is mounted on the machine platform. Its top has three concentric circular retaining rings arranged from the outside to the inside: the first retaining ring, the second retaining ring, and the third retaining ring. The inner walls of the first retaining ring and the second retaining ring are used to abut against the outer side wall and the inner side wall of the thermos cup, respectively. A rotary motor, which is installed inside the machine tool and is used to drive the rotary table to rotate; A clamping device includes several first clamping frames disposed at the gap between the first retaining ring and the second retaining ring, and several second clamping frames disposed at the gap between the second retaining ring and the third retaining ring. The first clamping frames and the second clamping frames have the same structure, each including a push rod, a first hinge rod, a second hinge rod, and a pressure plate. The first hinge rod and the second hinge rod are coaxially hinged to the top of the push rod. The other end of the first hinge rod is hinged to the side wall of the second retaining ring or the third retaining ring. The pressure plate is hinged to the end of the second hinge rod. When the push rod is pushed up, multiple pressure plates extend outward and apply pressure to the inner and outer layers of the thermos cup, pressing the inner and outer layers of the thermos cup tightly onto the first and second retaining rings, respectively.

[0012] Preferably, the first clamping frame and the second clamping frame are evenly distributed in an array.

[0013] Preferably, the rotary table has an installation space inside, and a liftable push plate is provided in the installation space. Each push rod is connected to the push plate. The bottom of the rotary table is provided with an installation cylinder, and the bottom of the installation cylinder is provided with an installation box. The installation box is provided with a power supply and an electric push rod servo cylinder is provided at the installation box. The output end of the electric push rod servo cylinder passes through the installation cylinder and extends into the installation space to connect with the push plate.

[0014] Preferably, the side wall of the rotary table is provided with an external gear ring, and the output shaft of the rotary motor is provided with a gear that meshes with the external gear ring. The rotary motor is an adjustable speed motor and its rotation angle is fed back by an angle sensor.

[0015] Compared with the prior art, the present invention has the following advantages: In this application, the welding mechanism adjusts the position and angle through an overall position adjustment mechanism and an angle adjustment mechanism. The welding mechanism adjusts the position of the lens through the dual action of air pressure and support spring, so that the laser beam convergence point presents two modes. One is to converge at the welding position to generate high temperature to weld the thermos cup, and the other is to form a light spot to irradiate the welding position to judge the gap. If the gap is greater than the error threshold, welding is stopped. If the gap is less than the error threshold, the laser irradiation time during welding is adjusted according to the gap size, thereby improving the welding quality. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a perspective view of the present application; Figure 2 A three-dimensional view of the angle adjustment mechanism and the welding mechanism; Figure 3 This is a side view of the angle adjustment mechanism and the welding mechanism; Figure 4 for Figure 3 Sectional view of AA in the middle; Figure 5 A three-dimensional diagram of a fixed structure; Figure 6 This is a cross-sectional view of a fixed structure; Figure 7 for Figure 5 Enlarged view of point A in the middle; Figure 8 A three-dimensional view of the angle adjustment mechanism; Figure 9 A three-dimensional view of the internal structure of the angle adjustment mechanism; Figure 10 A schematic diagram showing the comparison of the laser convergence point position before and after the angle adjustment mechanism is adjusted; In the diagram: 01, Thermos Cup; 10, Machine Base; 20, Overall Position Adjustment Mechanism; 30, Angle Adjustment Mechanism; 300, Drive Motor; 301, First Link; 302, Second Link; 303, Third Link; 3031, Extension Rod; 30311, Receiving Cavity; 30312, 30313, Rotating Block; 304, Fourth Link; 305, Fifth Link; 306, Sixth Link; 307, Laser Welding Gun; 3070, Cylinder; 3071, Laser Generator; 3072, Piston Ring; 3 073, Second lens; 3074, First lens; 3075, Adjustment cavity; 3076, Mounting base; 40, Fixing structure; 401, Rotary table; 4011, External gear ring; 402, Rotary motor; 403, Mounting cylinder; 404, Mounting box; 405, Electric push rod servo cylinder; 406, Push plate; 4071, Push rod; 4072, Second hinge rod; 4073, First hinge rod; 4074, Pressure plate; 4081, First retaining ring; 4082, Second retaining ring; 4083, Third retaining ring. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0019] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0020] This embodiment mainly describes the title of the thermos cup welding device, as follows: Thermos cup welding device, such as Figure 1-10 As shown, it includes: Machine 10, on which a thermos cup 01 with the cup mouth to be welded is fixed; The overall position adjustment mechanism 20 is used for vertical and horizontal position adjustment; An angle adjustment mechanism 30 is mounted on the overall position adjustment mechanism 20. The overall position adjustment mechanism 20 is used to adjust the vertical height and horizontal position, and it is used to adjust the angle. A welding mechanism is mounted on an angle adjustment mechanism 30 and its angle is adjusted by the angle adjustment mechanism 30. The welding mechanism includes a mounting base 3076 and a laser welding gun 307 mounted on the mounting base 3076. The laser welding gun 307 includes a gun body with a mounting cavity. Several laser generators 3071 are evenly distributed in a ring array at the top of the mounting cavity. A first lens 3074 is fixedly mounted inside the mounting cavity, and a piston ring 3072 is slidably mounted on the cavity wall between the laser generators 3071 and the first lens 3074. A second lens 3073 is embedded in the middle of the piston ring 3072, and a support spring is provided at the bottom end of the piston ring 3072. A sealed adjustment cavity 3075 is formed between the 073 and the laser generator 3071. A pressure adjustment structure is provided on the side wall of the adjustment cavity 3075. This pressure adjustment structure, together with the support spring, adjusts the position of the piston ring 3072 and the second lens 3073, thereby adjusting the convergence position of the laser spot generated by the laser generator 3071. During detection, each laser beam convergence point has a gap with the welding position, forming a divergent spot for scanning the welding position. During welding, each laser beam converges to a single point located at the welding position of the thermos cup 01. In this design, the welding mechanism adjusts the position and angle through the overall position adjustment mechanism 20 and the angle adjustment mechanism 30. The welding mechanism adjusts the lens position through the combined action of air pressure and the support spring, resulting in two modes for the laser beam convergence point: one where it converges at the welding position to generate high temperature for welding the thermos cup 01, and another where it forms a spot to irradiate the welding position to determine the gap. If the gap is greater than the error threshold, welding stops; if the gap is less than the error threshold, the laser irradiation time and angle are adjusted according to the gap size, thereby improving the welding quality.

[0021] Preferably, the adjustment structure is a cylinder 3070 disposed on the side wall of the adjustment cavity 3075 and connected to the adjustment cavity 3075. An adjustment piston is provided inside the cylinder 3070. The adjustment piston is driven by an electric push rod or a cylinder. When the piston is pushed inward, the piston ring 3072 and the second lens 3073 approach the first lens 3074, and vice versa. A boss is provided in the mounting cavity to limit the piston ring 3072. When the second lens 3073 abuts against the boss, that is, when the distance between the second lens 3073 and the first lens 3074 is the largest, the convergence point of each laser beam is located at the welding position.

[0022] Preferably, the overall position adjustment mechanism 20 includes a stand, a horizontal slide rail mounted on the stand, a horizontal slider slidably mounted on the horizontal slide rail, a movable frame mounted on the horizontal slider, a vertical slide rail mounted on the movable frame, and a vertical slider slidably mounted on the slide rail. The angle adjustment mechanism 30 is fixed on the vertical slider. A driving mechanism is provided between the two sets of slide rail sliders. The driving mechanism is a lead screw mechanism or a gear and rack mechanism driven by a motor.

[0023] Preferably, the angle adjustment mechanism 30 includes a first link 301, a second link 302, a third link 303, and a fourth link 304 that are hinged together to form a parallelogram structure. The first link 301 is fixed to the overall position adjustment mechanism 20, and a drive motor 300 for driving the second link 302 to rotate is provided on the first link 301. The third link 303 has an extension rod 3031 extending along its length direction. The extension rod 3031 has a receiving cavity 30311 with an outer contour of racetrack shape. A rotating block 30312 and a rotating block 30313 are rotatably provided on each side of the receiving cavity 30311, wherein one of the rotating blocks 30312... The middle part of the first rotating block 30312 is fixedly connected to the hinge shaft of the fourth connecting rod 304. The middle part of the second rotating block 30313 is rotatably connected to the receiving cavity 30311 and the rotating block 30313 extends out of the receiving cavity 30311 to connect to the welding gun 307. The fifth connecting rod 305 and the sixth connecting rod 306 are rotatably connected to the two rotating blocks 30312 and 30313. The connection points of the fifth connecting rod 305 and the sixth connecting rod 306 with the rotating blocks 30312 and 30313 are symmetrical about the middle part of the rotating blocks 30312 and 30313. The fifth connecting rod 305 and the sixth connecting rod 306 and the two rotating blocks 30312 and 30313 form a parallelogram structure. This solution constructs multiple quadrilateral structures through connecting rods. By transmitting and converting the transmission, the position of the irradiation point remains unchanged when the angle is adjusted. This provides favorable conditions for weld width detection. During detection, the weld condition of the entire welding position can be determined by irradiation measurements at multiple angles, and the laser irradiation time and angle can be adjusted according to the situation.

[0024] Preferably, the extension direction of the welding torch 307 is parallel to that of the second link 302, and its laser irradiates from the side of the third link 303 toward the side of the first link 301. The lateral projection of the laser convergence point is located at the intersection of the extension line of the welding torch 307 and the extension line of the first link 301.

[0025] Preferably, the machine base 10 is provided with a fixing structure 40, which includes: The rotating table 401 is rotatably mounted on the machine base 10. Its top has three concentric circular retaining rings arranged from the outside to the inside: the first retaining ring 4081, the second retaining ring 4082 and the third retaining ring 4083. The inner wall of the first retaining ring 4081 and the inner wall of the second retaining ring 4082 are respectively used to abut against the outer side wall of the thermos cup 01 and the inner side wall of the thermos cup 01. A rotary motor 402 is installed inside the machine base 10 and is used to drive the rotary table 401 to rotate; The clamping device includes several first clamping frames disposed at the gap between the first retaining ring 4081 and the second retaining ring 4082, and several second clamping frames disposed at the gap between the second retaining ring 4082 and the third retaining ring 4083. The first clamping frames and the second clamping frames have the same structure, both including a push rod 4071, a first hinge rod 4073, a second hinge rod 4072, and a pressure plate 4074. The pressure plate 4074 is configured with an arc-shaped structure to better fit the cup wall. The first hinge rod 4073 and the second hinge rod 4072 are coaxially hinged to the top of the push rod 4071. The other end of the first hinge rod 4073 is hinged to the side wall of the second retaining ring 4082 or the third retaining ring 4083. The pressure plate 4074 is hinged to the end of the second hinge rod 4072. When push rod 4071 is pushed upward, multiple pressure plates 4074 extend outward and apply pressure to the inner and outer layers of the thermos cup 01, pressing the inner and outer layers of the thermos cup 01 firmly onto the first retaining ring 4081 and the second retaining ring 4082, respectively. This design achieves the pressing of the two-layer structure of the thermos cup 01 through upward pushing, providing conditions for subsequent rotation. Its pressing features single drive and multi-angle, multi-position pressing, ensuring that the thermos cup 01 is in the correct position.

[0026] Preferably, the first clamping frame and the second clamping frame are evenly distributed in an array.

[0027] Preferably, the rotary table 401 has an installation space inside, and a liftable push plate 406 is provided in the installation space. Each push rod 4071 is connected to the push plate 406. The bottom of the rotary table 401 is provided with an installation cylinder 403, and the bottom of the installation cylinder 403 is provided with an installation box 404. The installation box 404 is provided with a power supply, and an electric push rod servo cylinder 405 is provided at the installation box 404. The output end of the electric push rod servo cylinder 405 passes through the installation cylinder 403 and extends into the installation space to connect with the push plate 406.

[0028] Preferably, the side wall of the rotary table 401 is provided with an external gear ring 4011, and the output shaft of the rotary motor 402 is provided with a gear that meshes with the external gear ring 4011. The rotary motor 402 is an adjustable speed motor and its rotation angle is fed back by an angle sensor.

[0029] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

Claims

1. A thermos cup welding device, characterized in that, include: A machine on which a thermos cup with the mouth to be welded is fixed; An overall position adjustment mechanism, used for vertical and horizontal position adjustment; An angle adjustment mechanism is installed on the overall position adjustment mechanism. The overall position adjustment mechanism adjusts the vertical height and horizontal position, and it is used to adjust the angle. The welding mechanism is mounted on the angle adjustment mechanism and its angle is adjusted by the angle adjustment mechanism. The welding mechanism includes a mounting base and a laser welding gun mounted on the mounting base. The laser welding gun includes a gun body with a mounting cavity. Several laser generators are evenly distributed in a ring array at the top of the mounting cavity. A first lens is fixedly mounted inside the mounting cavity, and a piston ring is slidably mounted on the cavity wall between the laser generator and the first lens. A second lens is embedded in the middle of the piston ring, and a support spring is provided at the bottom end of the piston ring. A sealed adjustment cavity is formed between the second lens and the laser generator. A pressure adjustment structure is provided on the side wall of the adjustment cavity. The pressure adjustment structure and the support spring work together to adjust the position of the piston ring and the second lens, thereby adjusting the convergence position of the laser spot generated by the laser generator. During detection, the convergence point of each laser beam has a distance from the welding position, thus forming a divergent spot for scanning the welding position. During welding, all laser beams converge to a single point located at the welding position of the thermos cup.

2. The thermos cup welding device according to claim 1, characterized in that, The adjustment structure is a cylinder located on the side wall of the adjustment cavity and connected to the adjustment cavity. An adjustment piston is provided inside the cylinder. The adjustment piston is driven by an electric push rod or a cylinder. When the piston is pushed inward, the piston ring and the second lens approach the first lens, and vice versa. A boss is provided in the mounting cavity to limit the piston ring. When the second lens abuts against the boss, that is, when the distance between the second lens and the first lens is the largest, the convergence point of each laser beam is located at the welding position.

3. The thermos cup welding device according to claim 1, characterized in that, The overall position adjustment mechanism includes a stand, a horizontal slide rail mounted on the stand, a horizontal slider mounted on the horizontal slide rail, a movable frame mounted on the horizontal slider, a vertical slide rail mounted on the movable frame, and a vertical slider mounted on the slide rail. The angle adjustment mechanism is fixed on the vertical slider. A drive mechanism is provided between the two sets of slide rail sliders. The drive mechanism is a lead screw mechanism or a gear and rack mechanism driven by a motor.

4. The thermos cup welding device according to claim 1, characterized in that, The angle adjustment mechanism includes a first link, a second link, a third link, and a fourth link that are hinged together to form a parallelogram structure. The first link is fixed to the overall position adjustment mechanism and is equipped with a drive motor that drives the second link to rotate. The third link has an extension rod extending along its length. The extension rod has a receiving cavity with a racetrack-shaped outer contour. A rotating block is rotatably provided on each side of the receiving cavity. The middle part of one rotating block is fixedly connected to the hinge axis of the fourth link, and the middle part of the other rotating block is rotatably connected to the receiving cavity. This rotating block extends out of the receiving cavity and is connected to a welding torch. A fifth link and a sixth link are rotatably connected to the two rotating blocks, and the connection points of the fifth and sixth links with the rotating blocks are symmetrical about the middle of the rotating blocks. The fifth and sixth links and the two rotating blocks form a parallelogram structure.

5. The thermos cup welding device according to claim 4, characterized in that, The welding torch extends parallel to the second link, and its laser beam irradiates from the third link side to the first link side. The lateral projection of the laser beam convergence point is located at the intersection of the extension line of the welding torch and the extension line of the first link.

6. The thermos cup welding device according to claim 1, characterized in that, The machine is equipped with a fixed structure, which includes: A rotating table is mounted on the machine platform. Its top has three concentric circular retaining rings arranged from the outside to the inside: the first retaining ring, the second retaining ring, and the third retaining ring. The inner walls of the first retaining ring and the second retaining ring are used to abut against the outer side wall and the inner side wall of the thermos cup, respectively. A rotary motor, which is installed inside the machine tool and is used to drive the rotary table to rotate; A clamping device includes several first clamping frames disposed at the gap between the first retaining ring and the second retaining ring, and several second clamping frames disposed at the gap between the second retaining ring and the third retaining ring. The first clamping frames and the second clamping frames have the same structure, each including a push rod, a first hinge rod, a second hinge rod, and a pressure plate. The first hinge rod and the second hinge rod are coaxially hinged to the top of the push rod. The other end of the first hinge rod is hinged to the side wall of the second retaining ring or the third retaining ring. The pressure plate is hinged to the end of the second hinge rod. When the push rod is pushed up, multiple pressure plates extend outward and apply pressure to the inner and outer layers of the thermos cup, pressing the inner and outer layers of the thermos cup tightly onto the first and second retaining rings, respectively.

7. The thermos cup welding device according to claim 6, characterized in that, The first and second clamping frames are evenly distributed in an array.

8. The thermos cup welding device according to claim 6, characterized in that, The rotary table has an installation space inside, and a liftable push plate is installed in the installation space. Each push rod is connected to the push plate. The bottom of the rotary table is equipped with an installation cylinder, and the bottom of the installation cylinder is equipped with an installation box. The installation box is equipped with a power supply and an electric push rod servo cylinder. The output end of the electric push rod servo cylinder passes through the installation cylinder and extends into the installation space to connect with the push plate.

9. The thermos cup welding device according to claim 6, characterized in that, The rotary table has an external gear ring on its side wall, and the output shaft of the rotary motor has a gear that meshes with the external gear ring. The rotary motor is an adjustable speed motor and its rotation angle is fed back by an angle sensor.

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