Quartz boat frame welding device

Abstract

The invention discloses a quartz boat frame welding device. The device comprises a rack; two first mobile positioning mechanisms; two second mobile positioning mechanisms; the connecting rod positioning assembly is used for positioning the connecting rod; the four lifting devices are provided with mounting frames capable of lifting up and down; the flame welding gun is fixed on the mounting frame; the movable positioning mechanism comprises a movable frame, a movable positioning mechanism and a movable positioning mechanism, a driving assembly; an L-shaped limiting plate; the two telescopic assemblies are arranged on the two sides of the movable frame respectively. According to the movable positioning mechanism, the vertical plate can be kept in a vertical state through the arrangement of the L-shaped limiting plate and the limiting face, the left-right position of the vertical plate can be limited through the two telescopic assemblies, namely, accurate positioning of the vertical plate can be rapidly and conveniently achieved, and the mounting frame can be driven to move up and down through the lifting device; therefore, the flame welding gun on the mounting frame can be driven to move up and down, and the automatic welding function is achieved.

Description

Technical Field

[0001] The invention relates to welding equipment, in particular to a quartz boat frame welding device. Background Art

[0002] like Figure 1 and Figure 2 As shown, the quartz boat 1 mainly includes four vertical plates and a plurality of connecting rods 11. The materials of the vertical plates and the connecting rods 11 are all quartz. The four vertical plates include two oppositely arranged short vertical plates 12 and two oppositely arranged long vertical plates 13. The four vertical plates are used to be connected in sequence to form a rectangular frame structure. The connecting rods 11 are used to connect the two long vertical plates 13. The existing quartz boat production process is mostly manual welding (flame heating and melting). Manual welding has problems with stability and efficiency, which seriously affects the production and processing efficiency and quality stability of the quartz boat. Summary of the invention

[0003] In view of the above problems, the present invention provides a quartz boat welding device.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A quartz boat welding device, the quartz boat comprises four vertical plates and a plurality of connecting rods, the four vertical plates comprise two oppositely arranged short vertical plates and two oppositely arranged long vertical plates, the four vertical plates are used to be connected in sequence to form a rectangular frame structure, the connecting rods are used to connect the two long vertical plates, the quartz boat welding device comprises:

[0006] frame;

[0007] Two first movable positioning mechanisms are arranged opposite to each other, and the first movable positioning mechanisms are used to limit the short vertical board and drive the short vertical board to move in the X direction;

[0008] Two second movable positioning mechanisms are arranged opposite to each other, and the second movable positioning mechanisms are used to limit the long vertical board and drive the long vertical board to move in the Y direction, and the Y direction is perpendicular to the X direction;

[0009] A connecting rod positioning assembly, located between the two second movable positioning mechanisms, and used for positioning the connecting rod;

[0010] Four lifting devices are respectively arranged on four sides of the frame, and the lifting devices have a mounting frame that can be lifted up and down; and

[0011] A flame welding gun, fixed on the mounting frame;

[0012] Wherein, the first mobile positioning mechanism and the second mobile positioning mechanism both include:

[0013] A movable frame, capable of moving relative to the frame, one side of the movable frame being a limiting surface;

[0014] A driving assembly, used for driving the moving frame to move;

[0015] An L-shaped limiting plate, wherein the L-shaped limiting plate has a horizontal portion and a vertical portion, wherein the horizontal portion is fixed to the limiting surface of the movable frame, and the L-shaped limiting plate and the limiting surface cooperate with each other to limit the vertical plate, so that the vertical plate stands upright and abuts against the limiting surface;

[0016] Two telescopic components are respectively arranged on both sides of the mobile frame shown. When the movable rod of the telescopic component is extended, it can cooperate with the left and right sides of the vertical plate to limit the left and right positions of the vertical plate. When the movable rod of the telescopic component is retracted, the movable rod is away from the vertical plate, and the telescopic component will not affect the welding operation of the flame welding gun.

[0017] The mobile positioning mechanism of the present application can keep the vertical plate in a vertical state through the arrangement of an L-shaped limit plate and a limit surface, and can limit the left and right positions of the vertical plate through two telescopic components, that is, the precise positioning of the vertical plate can be achieved quickly and conveniently, without the need to specially arrange a positioning structure on the vertical plate; the mobile frame can be driven to move through the driving component, so that the short vertical plate and the long vertical plate can be brought closer to each other, and the connecting rod can be clamped between the two long vertical plates; the mounting frame can be driven to move up and down through the lifting device, so that the flame welding gun on the mounting frame can be driven to move up and down, and combined with the horizontal movement of the mobile positioning mechanism, an automatic welding function can be achieved.

[0018] In one embodiment of the present invention, a component at the upper end of the vertical portion close to the limiting surface has a guide structure, and the guide structure is an inclined surface or a curved surface.

[0019] The guide structure is provided to facilitate the vertical plate to be clamped into the L-shaped limit plate.

[0020] In one embodiment of the present invention, the flame welding gun is fixed on the mounting frame via a clamping assembly.

[0021] In one embodiment of the present invention, the driving component includes:

[0022] Slide rails, fixed on the rack;

[0023] A movable seat is slidably arranged on the slide rod, the movable seat has a threaded hole, and the movable frame is fixed on the movable seat;

[0024] A screw rod is rotatably arranged on the frame, and the screw rod passes through the threaded hole and meshes with the threaded hole;

[0025] The motor is used to drive the lead screw to rotate, thereby driving the moving seat to move on the slide rail.

[0026] In one embodiment of the present invention, a pressure sensor is installed on the horizontal portion.

[0027] The pressure sensor can sense whether the vertical plate is placed in place to ensure the welding quality.

[0028] In one embodiment of the present invention, the connecting rod positioning assembly includes:

[0029] A plurality of spaced apart positioning seats, the positioning seats are fixed on the frame, and the positioning seats have a first positioning groove for the connecting rod to be embedded in;

[0030] A pressure plate is arranged above the positioning seat, and the lower surface of the pressure plate has a second positioning groove corresponding to the first positioning groove. The connecting rod is defined between the first positioning groove and the second positioning groove, and both ends of the connecting rod protrude from the positioning seat and the pressure plate.

[0031] In one embodiment of the present invention, the connecting rod positioning assembly further includes:

[0032] A connecting frame, fixed to each pressing plate;

[0033] The lifting element is used to drive the connecting frame to move up and down.

[0034] The lifting element can realize synchronous movement of multiple pressure plates, and the operation efficiency is high.

[0035] In one embodiment of the present invention, an air jet is installed on the connecting frame, and the air jet is used to blow air to cool the welded quartz boat.

[0036] The cooling rate can be increased by air cooling.

[0037] In one embodiment of the present invention, the air jets are divided into two groups, the first group of air jets faces the connection area between the connecting rod and the long vertical plate, and the second group of air jets faces the connection area between the long vertical plate and the short vertical plate.

[0038] In one embodiment of the present invention, a lifting assembly is further included on the frame. There are four groups of the lifting assemblies, which correspond to the four corners of the quartz boat respectively. The lifting assemblies are used to lift the entire quartz boat upward after welding is completed.

[0039] The lifting assembly can lift the entire quartz boat frame upward after welding is completed, and the lifting element drives the connecting frame and the jet pipe on the connecting frame to move upward, so that more efficient air circulation can be achieved and air cooling efficiency can be provided.

[0040] A specific operation mode of the quartz boat welding device of this embodiment:

[0041] The movable rod of the telescopic assembly is extended, and the movable rod of the telescopic assembly, the limiting surface, the horizontal part of the L-shaped limiting plate and the vertical part of the L-shaped limiting plate form a limiting space that accurately limits the position of the vertical plate, and the two short vertical plates are respectively placed on the limiting spaces of the two first movable positioning mechanisms, and the two long vertical plates are respectively placed on the limiting spaces of the two second movable positioning mechanisms;

[0042] The connecting frame is in a high position, the connecting rod is placed in the first positioning groove of the positioning seat, and the lifting element works to drive the connecting frame to move downward so that the second positioning groove of the pressing plate covers the corresponding connecting rod;

[0043] The movable rod of the telescopic assembly is retracted, and the driving assembly works, driving the short vertical plate and the long vertical plate to move closer to each other, so that the connecting rod is clamped between the two long vertical plates;

[0044] The flame welding gun sprays fire, and the lifting device drives the mounting frame to move up and down, so that the flame welding gun moves up and down to weld the welding part. During this period, the action of the driving component can be combined to realize linkage operation and perform more precise flame welding operation;

[0045] After welding is completed, the lifting element drives the connecting frame and the air jet pipe to move upward, and then the four sets of lifting components work to lift the quartz boat frame after welding upward, and blow air to the welding area through the air jet pipe for air cooling.

[0046] The beneficial effects of the present invention are as follows: the mobile positioning mechanism of the present application can keep the vertical plate in a vertical state through the arrangement of the L-shaped limit plate and the limit surface, and can limit the left and right positions of the vertical plate through the two telescopic components, that is, the precise positioning of the vertical plate can be achieved quickly and conveniently, without the need to specially arrange a positioning structure on the vertical plate; the mobile frame can be driven to move through the driving component, so that the short vertical plate and the long vertical plate are brought closer to each other, and the connecting rod is clamped between the two long vertical plates; the mounting frame can be driven to move up and down through the lifting device, so that the flame welding gun on the mounting frame can be driven to move up and down, and combined with the horizontal movement of the mobile positioning mechanism, an automatic welding function can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the vertical plates and the connecting rods when the quartz boat frame is not welded into one piece;

[0048] Figure 2 It is a schematic diagram of a quartz boat frame;

[0049] Figure 3 It is a structural schematic diagram of a quartz boat frame welding device;

[0050] Figure 4 It is a partial schematic diagram after the first movable positioning mechanism and the second movable positioning mechanism move to connect the short vertical board and the long vertical board;

[0051] Figure 5 It is a structural schematic diagram of the quartz boat frame welding device from another angle;

[0052] Figure 6 yes Figure 5 A magnified view of point A;

[0053] Figure 7 is a schematic diagram of a quartz boat frame welding device after the connecting rod positioning assembly is hidden;

[0054] Figure 8 yes Figure 7 The enlarged view of point B in the middle;

[0055] Fig. 9 Schematic diagram of the first mobile positioning mechanism.

[0056] The reference numerals in the figures are:

[0057] 1. Quartz boat frame; 11. Connecting rod; 12. Short vertical plate; 13. Long vertical plate; 2. Frame; 3a. First moving positioning mechanism; 3b. Second moving positioning mechanism; 31. Moving frame; 311. Limiting surface; 32. L-shaped limiting plate; 321. Horizontal part; 322. Vertical part; 3221. Guide structure; 33. Driving assembly; 331. Slide rail; 332. Moving seat; 333. Screw rod; 334. Motor; 34. Telescopic assembly; 341. Movable rod; 4. Connecting rod positioning assembly; 41. Positioning seat; 411. First positioning groove; 42. Press plate; 421. Second positioning groove; 43. Connecting frame; 44. Lifting element; 45. Jet pipe; 5. Lifting device; 51. Mounting frame; 52. Clamping assembly; 6. Flame welding gun; 7. Lifting assembly. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0059] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does 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. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0060] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] The present invention is described in detail below in conjunction with the accompanying drawings.

[0062] like Figures 1 to 9 As shown, a quartz boat welding device, the quartz boat 1 includes four vertical plates and a plurality of connecting rods 11, the four vertical plates include two oppositely arranged short vertical plates 12 and two oppositely arranged long vertical plates 13, the four vertical plates are used to be connected in sequence to form a rectangular frame structure, the connecting rod 11 is used to connect the two long vertical plates 13, the quartz boat welding device includes:

[0063] Rack 2;

[0064] Two first movable positioning mechanisms 3a are arranged opposite to each other, and the first movable positioning mechanisms 3a are used to limit the short vertical board 12 and drive the short vertical board 12 to move in the X direction;

[0065] Two second movable positioning mechanisms 3b are arranged opposite to each other, and the second movable positioning mechanisms 3b are used to limit the long vertical board 13 and drive the long vertical board 13 to move in the Y direction, and the Y direction is perpendicular to the X direction;

[0066] The connecting rod positioning assembly 4 is located between the two second movable positioning mechanisms 3b and is used to position the connecting rod 11;

[0067] Four lifting devices 5 are respectively arranged on four sides of the frame 2, and the lifting devices 5 have a mounting frame 51 that can be lifted up and down; and

[0068] A flame welding gun 6 is fixed on a mounting frame 51;

[0069] Among them, Figure 6 and 9 As shown, the first mobile positioning mechanism 3a and the second mobile positioning mechanism 3b both include:

[0070] The movable frame 31 can move relative to the frame 2, and one side of the movable frame 31 is a limiting surface 311;

[0071] A driving assembly 33, used for driving the moving frame 31 to move;

[0072] An L-shaped limiting plate 32, the L-shaped limiting plate 32 has a horizontal portion 321 and a vertical portion 322, the horizontal portion 321 is fixed on the limiting surface 311 of the moving frame 31, and the L-shaped limiting plate 32 and the limiting surface 311 cooperate with each other to limit the vertical plate, so that the vertical plate stands upright and abuts against the limiting surface 311;

[0073] Two telescopic components 34 are respectively arranged on both sides of the movable frame 31 shown. When the movable rod 341 of the telescopic component 34 is extended, it can cooperate with the left and right sides of the vertical plate to limit the left and right positions of the vertical plate. When the movable rod 341 of the telescopic component 34 is retracted, the movable rod 341 is away from the vertical plate, and the telescopic component 34 will not affect the welding operation of the flame welding gun 6.

[0074] The mobile positioning mechanism of the present application can keep the vertical plate in a vertical state through the arrangement of the L-shaped limit plate 32 and the limit surface 311, and can limit the left and right positions of the vertical plate through the two telescopic components 34, that is, the vertical plate can be accurately positioned quickly and conveniently without the need to specially arrange a positioning structure on the vertical plate; the driving component 33 can drive the mobile frame 31 to move, so that the short vertical plate 12 and the long vertical plate 13 are brought closer to each other, and the connecting rod 11 is clamped between the two long vertical plates 13; the lifting device 5 can drive the mounting frame 51 to move up and down, thereby driving the flame welding gun 6 on the mounting frame 51 to move up and down, and combined with the horizontal movement of the mobile positioning mechanism, an automatic welding function can be achieved.

[0075] like Figure 6 As shown, in this embodiment, the upper end of the vertical portion 322 near the limiting surface 311 has a guide structure 3221, and the guide structure 3221 is an inclined surface or a curved surface. The guide structure 3221 is provided to facilitate the vertical plate to be clamped on the L-shaped limiting plate 32.

[0076] like Figure 3 As shown, in this embodiment, the flame welding gun 6 is fixed on the mounting frame 51 through a clamping assembly 52 .

[0077] like Fig. 9 As shown, in this embodiment, the driving component 33 includes:

[0078] Slide rail 331, fixed on rack 2;

[0079] A movable seat 332 is slidably disposed on the slide rod, the movable seat 332 has a threaded hole, and the movable frame 31 is fixed on the movable seat 332;

[0080] The screw rod 333 is rotatably arranged on the frame 2, and the screw rod 333 passes through the threaded hole and meshes with the threaded hole;

[0081] The motor 334 is used to drive the screw rod 333 to rotate, thereby driving the moving seat 332 to move on the slide rail 331 .

[0082] In actual use, a pressure sensor is installed on the horizontal part 321. The pressure sensor can sense whether the vertical plate is placed in place to ensure the welding quality.

[0083] like Figure 4 As shown, in this embodiment, the connecting rod positioning assembly 4 includes:

[0084] A plurality of spaced apart positioning seats 41, the positioning seats 41 are fixed on the frame 2, and the positioning seats 41 have first positioning grooves 411 for the connecting rods 11 to be inserted into;

[0085] The pressure plate 42 is arranged above the positioning seat 41. The lower surface of the pressure plate 42 has a second positioning groove 421 corresponding to the first positioning groove 411. The connecting rod 11 is limited between the first positioning groove 411 and the second positioning groove 421, and both ends of the connecting rod 11 protrude from the positioning seat 41 and the pressure plate 42.

[0086] like Figure 3 and 4 As shown, in this embodiment, the connecting rod positioning assembly 4 also includes:

[0087] A connecting frame 43 is fixed to each pressing plate 42;

[0088] The lifting element 44 is used to drive the connecting frame 43 to move up and down.

[0089] The lifting element 44 can synchronously drive the movement of multiple pressing plates 42, thereby achieving high operating efficiency.

[0090] like Figure 4 As shown, in this embodiment, a gas jet 45 is installed on the connecting frame 43, and the gas jet 45 is used to blow air to cool the welded quartz boat 1. The cooling speed can be increased by air cooling.

[0091] In this embodiment, the air jets 45 are divided into two groups. The first group of air jets 45 faces the connection area between the connecting rod 11 and the long vertical plate 13 , and the second group of air jets 45 faces the connection area between the long vertical plate 13 and the short vertical plate 12 .

[0092] like Figure 4 As shown, in this embodiment, it also includes a lifting assembly 7 arranged on the frame 2. There are four groups of lifting assemblies 7, which correspond to the four corners of the quartz boat frame 1 respectively. The lifting assemblies 7 are used to lift the entire quartz boat frame 1 upward after welding is completed.

[0093] After welding, the entire quartz boat 1 can be lifted up by the lifting assembly 7, and at the same time, the lifting element 44 drives the connecting frame 43 and the air injection pipe 45 on the connecting frame 43 to move upward, so that more efficient air circulation can be achieved and air cooling efficiency can be improved.

[0094] A specific operation mode of the quartz boat welding device of this embodiment:

[0095] like Figure 3 As shown, the movable rod 341 of the telescopic assembly 34 is extended, and the movable rod 341 of the telescopic assembly 34, the limiting surface 311, the horizontal portion 321 of the L-shaped limiting plate 32, and the vertical portion 322 of the L-shaped limiting plate 32 form a limiting space that accurately limits the position of the vertical plate, and the two short vertical plates 12 are respectively placed on the limiting spaces of the two first movable positioning mechanisms 3a, and the two long vertical plates 13 are respectively placed on the limiting spaces of the two second movable positioning mechanisms 3b;

[0096] The connecting frame 43 is in a high position, and the connecting rod 11 is placed in the first positioning groove 411 of the positioning seat 41. The lifting element 44 works to drive the connecting frame 43 to move downward, so that the second positioning groove 421 of the pressing plate 42 covers the corresponding connecting rod 11;

[0097] like Figure 4 As shown, the movable rod 341 of the telescopic assembly 34 is retracted, and the driving assembly 33 works to drive the short vertical board 12 and the long vertical board 13 to move closer to each other, so that the connecting rod 11 is clamped between the two long vertical boards 13;

[0098] The flame welding gun 6 sprays fire, and the lifting device 5 drives the mounting frame 51 to move up and down, so that the flame welding gun 6 moves up and down to weld the welding part. During this period, the action of the driving component 33 can be combined to realize linkage operation, so as to perform more precise flame welding operation;

[0099] After welding is completed, the lifting element 44 drives the connecting frame 43 and the air injection pipe 45 to move upward, and then the four lifting assemblies 7 work to lift the quartz boat frame 1 after welding upward, and blow air to the welding area through the air injection pipe 45 for air cooling.

[0100] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A quartz boat welding device, the quartz boat comprises four vertical plates and a plurality of connecting rods, the four vertical plates comprise two oppositely arranged short vertical plates and two oppositely arranged long vertical plates, the four vertical plates are used to be connected in sequence to form a rectangular frame structure, the connecting rod is used to connect the two long vertical plates, characterized in that: The quartz boat welding device includes: frame; Two first movable positioning mechanisms are arranged opposite to each other, and the first movable positioning mechanisms are used to limit the short vertical board and drive the short vertical board to move in the X direction; Two second movable positioning mechanisms are arranged opposite to each other, and the second movable positioning mechanisms are used to limit the long vertical board and drive the long vertical board to move in the Y direction, and the Y direction is perpendicular to the X direction; A connecting rod positioning assembly, located between the two second movable positioning mechanisms, and used for positioning the connecting rod; Four lifting devices are respectively arranged on four sides of the frame, and the lifting devices have a mounting frame that can be lifted up and down; and A flame welding gun, fixed on the mounting frame; Wherein, the first mobile positioning mechanism and the second mobile positioning mechanism both include: A movable frame, capable of moving relative to the frame, one side of the movable frame being a limiting surface; A driving assembly, used for driving the moving frame to move; An L-shaped limiting plate, wherein the L-shaped limiting plate has a horizontal portion and a vertical portion, wherein the horizontal portion is fixed to the limiting surface of the movable frame, and the L-shaped limiting plate and the limiting surface cooperate with each other to limit the vertical plate, so that the vertical plate stands upright and abuts against the limiting surface; Two telescopic components are respectively arranged on both sides of the mobile frame shown. When the movable rod of the telescopic component is extended, it can cooperate with the left and right sides of the vertical plate to limit the left and right positions of the vertical plate. When the movable rod of the telescopic component is retracted, the movable rod is away from the vertical plate, and the telescopic component will not affect the welding operation of the flame welding gun.

2. The quartz boat welding device according to claim 1, characterized in that: The component at the upper end of the vertical part close to the limiting surface has a guiding structure, and the guiding structure is an inclined surface or a curved surface.

3. The quartz boat welding device according to claim 1, characterized in that: The flame welding gun is fixed on the mounting frame through a clamping assembly.

4. The quartz boat welding device according to claim 1, characterized in that: The drive assembly comprises: Slide rails, fixed on the rack; A movable seat is slidably arranged on the slide rod, the movable seat has a threaded hole, and the movable frame is fixed on the movable seat; A screw rod is rotatably arranged on the frame, and the screw rod passes through the threaded hole and meshes with the threaded hole; The motor is used to drive the lead screw to rotate, thereby driving the moving seat to move on the slide rail.

5. The quartz boat welding device according to claim 1, characterized in that: A pressure sensor is installed on the horizontal part.

6. The quartz boat welding device according to claim 1, characterized in that: The connecting rod positioning assembly comprises: A plurality of spaced apart positioning seats, the positioning seats are fixed on the frame, and the positioning seats have a first positioning groove for the connecting rod to be embedded in; A pressure plate is arranged above the positioning seat, and the lower surface of the pressure plate has a second positioning groove corresponding to the first positioning groove. The connecting rod is defined between the first positioning groove and the second positioning groove, and both ends of the connecting rod protrude from the positioning seat and the pressure plate.

7. The quartz boat welding device according to claim 6, characterized in that: The connecting rod positioning assembly also includes: A connecting frame, fixed to each pressing plate; The lifting element is used to drive the connecting frame to move up and down.

8. The quartz boat welding device according to claim 7, characterized in that: The connecting frame is provided with an air jet pipe, and the air jet pipe is used for blowing and cooling the welded quartz boat frame.

9. The quartz boat welding device according to claim 8, characterized in that: The air jet pipes are divided into two groups. The first group of air jet pipes are directed toward the connection area between the connecting rod and the long vertical plate, and the second group of air jet pipes are directed toward the connection area between the long vertical plate and the short vertical plate.

10. The quartz boat welding device according to claim 9, characterized in that: It also includes a lifting assembly arranged on the frame, wherein the lifting assembly has four groups, respectively corresponding to the four corners of the quartz boat frame, and the lifting assembly is used to lift the entire quartz boat frame upward after welding is completed.

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