Metal mask frame welding automation equipment

Abstract

The invention belongs to the technical field of automatic manufacturing, and discloses metal mask frame welding automation equipment which comprises a rack, a first portal frame is fixedly installed at the top end of the rack, a second portal frame is fixedly installed in the rack, and moving frames are movably installed on the outer side of the second portal frame and the outer side of the first portal frame. A movable plate is slidably mounted on one end face of the movable frame, two welding heads are mounted in the movable plate in an embedded mode, the welding directions of the two welding heads are opposite, and a heating plate is fixedly mounted at the position, close to one end of the welding heads, of the back face of the movable plate. According to the scheme, the process of transient heating and cooling and long-time welding is used, local flatness correction is conducted, and the situation that after manual welding, all areas of a product are distorted due to deformation of raw materials or thermal stress diffusion, errors are accumulated and the like and are difficult to remedy is avoided; and work errors of welding personnel can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of automated manufacturing, and in particular relates to automated metal mask frame welding equipment. Background Art

[0002] OLED screens are an important part of modern light-emitting display technology, so OLED screen manufacturing equipment has also become a top priority. The OLED panel manufacturing industry generally uses names such as 4.5th generation, 5.5th generation, 6th generation, and 8.7th generation to classify the technical specifications of production lines, which mainly reflect the maximum size of the glass substrate used in the production line.

[0003] The manufacturing process of the panel mainly relies on the process of vapor deposition of the attached glass substrate in a vacuum chamber by an evaporation machine. It is divided into FMM for vapor deposition of the RGB layer of organic light-emitting particles and CMM for the common layer. Both have a similar structure of a metal base frame and a top thin sheet mesh. The metal frame and the metal mesh need to be welded with high precision before they can be used as a precision jig for vapor deposition. There are regularly arranged grid-type holes inside the mesh. The organic light-emitting particles and the common film layer are deposited on the glass through this grid-type hole. Only in this way can the accuracy and reliability of the product be guaranteed.

[0004] Among them, the metal frame of the base is generally called the metal mask frame in the industry. It plays a key role in supporting the mesh surface and preventing the taut mesh surface from rebounding. It is a kind of metal frame that generally has a high-precision welding surface on the top, a weight-reducing groove, a vapor deposition guide slope, small holes, and a large internal opening. The thickness is generally 25-35mm, and the outer contour is generally 1700*1100 and other medium and large sizes. It is made of special steel Invar alloy with low thermal expansion performance by overall mechanical processing. It has good mechanical uniformity and the ability to resist high-temperature thermal expansion and contraction. Its own thermal expansion has little effect on the precision of the vapor deposition mesh surface it carries. Invar alloy is an excellent low thermal expansion material, which is composed of 63% iron and 36% nickel and trace elements. The crystal has a face-centered cubic structure. Since the advent of Invar alloy, its application field with low thermal expansion coefficient has expanded rapidly. It has important applications in precision instruments, microwave technology, liquid gas storage containers, resonator cavities, laser collimator cavities, aerospace remote sensing, precision optics, astronomical telescope supports, etc. In recent years, as the mining and transportation prices of nickel ore continue to rise, the price of Invar alloy has also risen accordingly. Whether the plates of this product are made at home or abroad, they are all made by traditional rolling press plates, taking into account the needs of various buyers. If the blanks that meet the shape are customized specifically for this product, the molds, machine operation and other costs generated will require huge investments in steel manufacturing plants. The market demand for metal mask frames themselves is far from reaching this level, so the economic efficiency is not good. If the original solid plates after melting and rolling are selected for internal and external waste processing and cutting and then used to make metal mask frames, a large amount of scraps will be abandoned, and the cost is always difficult to effectively reduce; During the welding process of the metal mask frame, excessive heat may cause the weld to have a flatness deviation, which further results in the welded joint being unsightly and requiring re-welding. Summary of the invention

[0005] The present invention aims to solve the problem in the prior art that the weld after welding has a flatness deviation due to excessive heat during the welding process of the metal mask frame, which further causes the welded joint to be unsightly and requires re-welding. The present invention proposes the following technical solution: A metal mask frame welding automation equipment comprises a stand, a gantry frame 1 is fixedly installed on the top of the stand, a gantry frame 2 is fixedly installed inside the stand, a mobile stand is movably installed on the outer sides of the gantry frame 2 and the gantry frame 1, a mobile plate is slidably installed on the end surface of the mobile stand, a welding head is embedded and installed inside the mobile plate, and the number of the welding heads is set to two in total and the welding directions of the two welding heads are opposite; A heating plate is fixedly installed at a position near one end of the welding head on the back side of the movable plate, an infrared temperature detector is installed on the back side of the movable plate at one side of the heating plate, a depth camera is installed on the back side of the movable plate at one side of the infrared temperature detector, and an ultrasonic flaw detection head is installed on the back side of the movable plate at one side of the depth camera. The number of the heating plate, infrared temperature detector, depth camera and ultrasonic flaw detection head are respectively set to two and are respectively arranged opposite to each other. A grid plate is installed at a position at the top of the stand corresponding to a bottom end of the gantry, rectangular blocks are equidistantly and symmetrically fixedly installed on the top of the grid plate, flip plates are rotatably installed at the middle positions of both sides of the top of the grid plate, and blocking plates are symmetrically and movably installed on the front and back edges of the top of the grid plate.

[0006] As a preferred embodiment of the above technical solution, the blocking plate and the flip plate have the same shape, rectangular blocks are fixedly installed on the top of the grid plate located on one side of the flip plate and the blocking plate, and through holes are opened at the four corners of the grid plate and the top of the stand.

[0007] As a preferred embodiment of the above technical solution, an electric telescopic rod 1 is embedded and installed inside the movable frame, a slider is fixedly installed at the bottom end of the electric telescopic rod 1, and the slider is fixedly installed at one end of the movable plate.

[0008] As a preferred embodiment of the above technical solution, a positioning sleeve is fixedly installed between the middle of the outer surface of the heating plate, infrared temperature detector, depth camera and ultrasonic flaw detection head, a positioning plate is sleeved between the heating plate, infrared temperature detector, depth camera and the top of the ultrasonic flaw detection head, a rotating ring is sleeved on the outer side of the positioning plate, a mounting plate is fixedly installed on the top of the rotating ring, and one end face of the mounting plate and one end face of the movable plate are welded together.

[0009] As a preferred embodiment of the above technical solution, a motor is fixedly mounted on the bottom end of the mounting plate, a rectangular column is slidably connected inside the output shaft of the motor, and the rectangular column is clamped inside the positioning sleeve and the positioning plate.

[0010] As a preferred embodiment of the above technical solution, a column is connected through the inside of the flip plate, and a torsion spring is installed between the outer side of the column and the inner wall of the flip plate.

[0011] As a preferred embodiment of the above technical solution, a mounting bar is symmetrically fixedly installed on one end surface of the baffle plate, a cylinder is movably connected inside the mounting bar, a guide bar is sleeved on the outer side of the cylinder, and a connecting bar is connected between two adjacent guide bars.

[0012] As a preferred embodiment of the above technical solution, the number of the connecting strips is set to two, and sawtooth strips are alternately arranged on the opposite surfaces of the two connecting strips. The same gear is meshed and connected between the opposite surfaces of the two sawtooth strips, and the gear is rotatably connected to the top of the stand.

[0013] As a preferred embodiment of the above technical solution, a protrusion is fixedly installed at the bottom end of the sawtooth bar, and the protrusion is slidably connected to the inside of the stand. An electric telescopic rod three is fixedly installed at one end of one of the protrusions, and the fixed end of the electric telescopic rod three is fixedly installed inside the stand.

[0014] The beneficial effects of the present invention are: This solution uses a process of short heating and cooling and long welding to correct local flatness, avoiding distortion of product areas due to deformation of the raw material itself or diffusion of thermal stress after manual welding, error accumulation and other factors that are difficult to remedy, and can avoid mistakes made by welders; (2) Step heating is performed over a long distance around the weld to avoid large deformation caused by excessive local heat, and to ensure that the cooling speed of the weld and the surrounding metal base material is basically the same. The weld will not have the risk of cracks such as uneven shrinkage, and the metallographic structure transition is smooth; (3) Online detection of deformation without frequent up and down meter and caliper measurement; (4) Suitable for mass production, without the need for a large number of welders and quality inspectors to work for long hours; (5) The original straight welding material is replaced with an L-shaped welding material. This design reduces the total number of welding times, thereby reducing the possibility of uneven heating and cooling of the welding material and product deformation due to thermal expansion and contraction. (6) It can automatically adjust the position of the processing structure so that the processed workpiece is aligned with the weld, change the difficulty of alignment, and further facilitate the detection of the weld after welding to prevent deviation problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure diagram of a metal mask frame welding automation equipment in Example 1 is shown; Figure 2 Shown is a cross-sectional view of a metal mask frame welding automation equipment in Example 1; Figure 3 The figure shows a schematic diagram of the installation structure of the gantry 1 in the embodiment 1; Figure 4 The figure shows the installation structure diagram of the gantry 2 in the embodiment 1; Figure 5 The figure shows a schematic diagram of the installation structure of the moving plate in Example 1; Figure 6 Shown is a cross-sectional view of the mobile frame in Example 1; Figure 7 The figure shows a schematic diagram of the installation structure of the positioning plate in the embodiment 1; Figure 8 The figure shows a schematic diagram of the installation structure of the depth camera in Example 1; Fig. 9 The figure shows a schematic diagram of the installation structure of the electric telescopic rod 3 in the embodiment 1; Fig.10 The figure shows a schematic diagram of the installation structure of the column in the embodiment 1; Fig.11 The figure shows a schematic diagram of the welding structure of four metal strips in Example 1; Fig.12 What is shown is a schematic diagram of the welding structure of two L metal strips in Example 1.

[0016] In the figure: 1. stand; 2. gantry one; 3. gantry two; 4. mobile frame; 5. mobile plate; 6. welding head; 7. heating plate; 8. infrared temperature detector; 9. depth camera; 10. ultrasonic flaw detection head; 11. electric telescopic rod one; 12. slider; 13. grid plate; 14. rectangular block; 15. flip plate; 16. positioning plate; 17. rectangular column; 18. positioning sleeve; 19. rotating ring; 20. electric telescopic rod two; 21. blocking plate; 22. mounting strip; 23. cylinder; 24. guide strip; 25. connecting strip; 26. sawtooth strip; 27. gear; 28. bump; 29. ​​electric telescopic rod three; 30. mounting plate; 31. motor; 32. column; 33. torsion spring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] Embodiment 1: The present invention provides a metal mask frame welding automation equipment, such as Figures 1 to 12 As shown, it includes a stand 1, a gantry 2 is fixedly installed on the top of the stand 1, a gantry 2 is fixedly installed inside the stand 1, a mobile frame 4 is movably installed on the outer sides of the gantry 2 3 and the gantry 2, a mobile plate 5 is slidably installed on one end surface of the mobile frame 4, a welding head 6 is embedded and installed inside the mobile plate 5, and the number of the welding heads 6 is set to two in total, and the welding directions of the two welding heads 6 are opposite; A heating plate 7 is fixedly installed at a position near one end of the welding head 6 on the back of the movable plate 5, an infrared temperature detector 8 is installed on the back of the movable plate 5 at one side of the heating plate 7, a depth camera 9 is installed on the back of the movable plate 5 at one side of the infrared temperature detector 8, and an ultrasonic flaw detection head 10 is installed on the back of the movable plate 5 at one side of the depth camera 9. The number of the heating plate 7, the infrared temperature detector 8, the depth camera 9 and the ultrasonic flaw detection head 10 are respectively set to two and are respectively arranged opposite to each other. A grid plate 13 is installed at a position at the top of the stand 1 corresponding to the bottom end of the gantry 2, a rectangular block 14 is equidistantly and symmetrically fixedly installed at the top of the grid plate 13, a flip plate 15 is rotatably installed at the middle position of both sides of the top of the grid plate 13, and a blocking plate 21 is symmetrically and movably installed on the front and back edges of the top of the grid plate 13.

[0019] like Figure 1 and Figure 2 As shown, the blocking plate 21 and the flip plate 15 have the same shape, and a rectangular block 14 is fixedly installed at the top of the grid plate 13 located on one side of the flip plate 15 and the blocking plate 21, and through holes are opened at the four corners of the top of the grid plate 13 and the stand 1; The metal strip can be clamped conveniently, thus reducing the difficulty of clamping the metal strip, and the welding between two metal strips after overlapping can be facilitated, thus reducing the difficulty of welding.

[0020] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, an electric telescopic rod 11 is embedded in the mobile frame 4, a slider 12 is fixedly installed at the bottom end of the electric telescopic rod 11, and the slider 12 is fixedly installed at one end of the mobile plate 5; When the electric telescopic rod 11 is connected to a power source and starts to operate, the electric telescopic rod 11 drives the slider 12 to move, and when the slider 12 moves, it drives the movable plate 5 to move, thereby changing the movement difficulty of the movable plate 5, so that the position of the movable plate 5 can be adjusted.

[0021] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a positioning sleeve 18 is fixedly installed between the middle of the outer surface of the heating plate 7, the infrared temperature detector 8, the depth camera 9 and the ultrasonic flaw detection head 10, a positioning plate 16 is sleeved between the top of the heating plate 7, the infrared temperature detector 8, the depth camera 9 and the ultrasonic flaw detection head 10, a rotating ring 19 is sleeved on the outer side of the positioning plate 16, a mounting plate 30 is fixedly installed on the top of the rotating ring 19, and one end surface of the mounting plate 30 is welded to one end surface of the moving plate 5; Due to the installation of the heating plate 7, the infrared temperature detector 8, the depth camera 9 and the ultrasonic flaw detection head 10, the positions of the heating plate 7, the infrared temperature detector 8, the depth camera 9 and the ultrasonic flaw detection head 10 can be changed at the same time, which reduces the difficulty of changing the positions of the heating plate 7, the infrared temperature detector 8, the depth camera 9 and the ultrasonic flaw detection head 10.

[0022] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a motor 31 is fixedly mounted at the bottom of the mounting plate 30, and a rectangular column 17 is slidably connected inside the output shaft of the motor 31, and the rectangular column 17 is clamped inside the positioning sleeve 18 and the positioning plate 16; The motor 31 drives the positioning sleeve 18 and the positioning plate 16 to rotate, thereby changing the difficulty of rotating the positioning sleeve 18 and the positioning plate 16 .

[0023] like Figure 2 and Fig.10 As shown, a column 32 is connected to the inside of the flip plate 15, and the outer side of the column 32 is fixedly connected to the stand 1. A torsion spring 33 is installed between the outer side of the column 32 and the inner wall of the flip plate 15, and one end of the torsion spring 33 is fixedly connected to the column 32, and the other end of the torsion spring 33 is fixedly connected to the flip plate 15; The flip plate 15 rotates along the outer side of the column 32, and at this time, the flip plate 15 drives the torsion spring 33 to be compressed. When the torsion spring 33 is compressed, the restoring force drives the flip plate 15 to reset. When the flip plate 15 is reset, it squeezes the metal strip, so that the metal strip and the rectangular block 14 are abutted and fixed.

[0024] like Figure 2 and Fig. 9 As shown, a mounting strip 22 is symmetrically fixedly mounted on one end of the baffle plate 21, a cylinder 23 is movably connected inside the mounting strip 22, a guide strip 24 is sleeved on the outside of the cylinder 23, and a connecting strip 25 is connected between two adjacent guide strips 24; When the connecting bar 25 moves, it drives the two guide bars 24 to move. When the guide bar 24 moves, it drives the cylinder 23 to move inside the mounting bar 22, thereby causing the blocking plate 21 to deflect. After the blocking plate 21 deflects, it squeezes the vertically placed metal bar, so that the metal bar and the rectangular block 14 are squeezed and fixed.

[0025] like Figure 2 and Fig. 9 As shown, the number of connecting bars 25 is set to two, and sawtooth bars 26 are staggeredly arranged on the opposite surfaces of the two connecting bars 25, and the same gear 27 is meshed and connected between the opposite surfaces of the two sawtooth bars 26, and the gear 27 is rotatably connected to the top of the stand 1; When one of the sawtooth bars 26 moves, the movement of the sawtooth bar 26 drives the gear 27 to rotate, and when the gear 27 rotates, it drives the other sawtooth bar 26 to move in the opposite direction, so that the two sawtooth bars 26 move relative to each other, which changes the relative movement difficulty of the two sawtooth bars 26. When the two sawtooth bars 26 move relative to each other, they drive the connecting bar 25 to move, which changes the movement difficulty of the connecting bar 25.

[0026] like Figure 2 and Fig. 9 As shown, a protrusion 28 is fixedly installed at the bottom end of the sawtooth bar 26, and the protrusion 28 is slidably connected to the inside of the stand 1. An electric telescopic rod 3 29 is fixedly installed at one end of one of the protrusions 28, and the fixed end of the electric telescopic rod 3 29 is fixedly installed inside the stand 1; When the electric telescopic rod 3 29 is connected to a power source and starts to operate, the electric telescopic rod 3 29 drives the protrusion 28 to move, and when the protrusion 28 moves, it drives the sawtooth bar 26 to move, thereby changing the movement difficulty of the sawtooth bar 26, so that the position of the sawtooth bar 26 can be horizontally displaced.

[0027] Working principle: In actual use of the device, a laser cutting machine is used to cut a large plate of raw material into L-shaped metal strips of a specific shape, and then the inner and outer contour dimensions of the membrane frame are installed for automatic welding. At this time, the cut L-metal strips are placed on the top of the mesh plate 13, and then placed between the flip plate 15 and the rectangular block 14. At this time, one of the L-metal strips is placed on the top of the mesh plate 13, and at the same time, the L-metal strip is placed between one set of blocking plates 21 and the rectangular block 14. Then, another L-metal strip is placed on the top of the mesh plate 13, and at the same time, it enters between another set of blocking plates 21 and the rectangular block 14. Then, the electric telescopic rod 29 is started. Due to the action of the electric telescopic rod 29, the protrusion 28 is driven to move. When the protrusion 28 moves, it drives one of the sawtooth bars 26 to move. At this time, when the sawtooth bar 26 moves, it drives the gear 27 to rotate. When the gear 27 rotates The other sawtooth bar 26 is driven to move in the opposite direction, so that the two sawtooth bars 26 move relative to each other. When the two sawtooth bars 26 move relative to each other, the connecting bar 25 is driven to move. The connecting bar 25 drives the two guide bars 24 to move. When the guide bar 24 moves, the cylinder 23 is driven to move inside the mounting bar 22, so that the blocking plate 21 is deflected. After the blocking plate 21 is deflected, the L metal strip is squeezed, so that the L metal strip and the rectangular block 14 are squeezed and fixed. At this time, the two L metal strips are combined into a rectangle, and after being fixed, there is enough weld spacing between each metal strip. The original straight-line welding material is replaced with an English letter L-shaped welding material. This design is to reduce the total number of welding times, thereby reducing the possibility that the welding material generates a lot of heat during welding, and the welding point heats up sharply, resulting in uneven hot and cold welding materials, and product deformation due to thermal expansion and contraction; Then, the electric telescopic rod 11 is started. When the electric telescopic rod 11 moves, it drives the slider 12 to move. When the slider 12 moves, it drives the moving plate 5 to move. When the moving plate 5 moves, it drives the welding head 6 to enter the top of the metal strip. At this time, the moving plate 5 moves and drives the heating plate 7 to move. Then, the electric telescopic rod 20 is started. When the electric telescopic rod 20 is running, it drives the positioning plate 16 and the positioning sleeve 18 to move. When the positioning plate 16 and the positioning sleeve 18 move, they drive the rectangular column 17 to slide inside the output shaft of the motor 31, so that the heating plate 7 moves. After the heating plate 7 moves, the part to be welded is preheated, and at this time, the heat is detected by the infrared temperature detector 8 to avoid local thermal deformation and thermal stress cracking due to heat concentration during welding, which is conducive to the cooling speed of the weld and the surrounding metal base material being basically consistent; Then, the gantry 1 2 and the gantry 2 3 are started, and the moving frame 4 is moved. When the moving frame 4 moves, the moving plate 5 drives the welding head 6 to move. When the welding head 6 moves, the metal strips are welded relative to the weld seam. At this time, the welding process uses the specific welding and process parameters of the 35 mm thick plate Invar alloy. Each weld seam is divided into one bottom layer, three solid welds, and two cover layers. After each step is completed, the welding gun moves to the second weld seam and repeats the step. After all the weld seams are completed, return to the first weld seam for the next step. According to this step, the weld seams are welded one by one until all are completed; Since the baffle plate 21 limits the overall position of the metal strip, it is unable to limit the 2-3 mm deformation error of the raw material itself and the thermal deformation after heat diffusion after long-term welding. At this time, the motor 31 is started. When the motor 31 is running, it drives the rectangular column 17 to rotate. When the rectangular column 17 rotates, it drives the positioning plate 16 and the positioning sleeve 18 to rotate. At this time, the positioning sleeve 18 rotates inside the rotating ring 19, and when the positioning plate 16 rotates, it drives the depth camera 9 to rotate, so that the depth camera 9 enters the position of the heating plate 7, and the heating plate 7 rotates synchronously. At this time, the depth camera 9 on the gantry will quickly measure the height of the entire metal strip surface by area, because the Wa alloy itself has low heat conductivity. This feature, if the metal strip has abnormal high and low points, the motor 31 is driven in the reverse direction to reset the heating plate 7, and then the concave side of the position is heated for a short time by the heating plate 7 and then air-cooled. Due to the poor heat transfer, the heat of the metal strip will not be quickly dissipated in such a short time. The cooling process of recrystallization will cause grain refinement and dense grain boundaries. The stress at this position is greater than that at other positions. At this time, the material gradually shrinks, that is, the opposite side of the abnormal high point will shrink and gradually become flat. During the welding process, this feature of the Invar material is used to perform a work cycle of online deformation monitoring, short heating and cooling, and long welding until the welding is finally completed. Then start the motor 31 again. When the motor 31 is running, it drives the ultrasonic flaw detector 10 to rotate, so that the ultrasonic flaw detector 10 enters the position of the heating plate 7. Then, the ultrasonic flaw detector 10 is used to detect defects inside and outside the welding. After the quality is confirmed, the product is taken out using a trolley.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A metal mask frame welding automation equipment, characterized in that: The invention comprises a platform (1), wherein a gantry frame 1 (2) is fixedly mounted on the top of the platform (1), a gantry frame 2 (3) is fixedly mounted inside the platform (1), a mobile frame (4) is movably mounted on the outer sides of the gantry frame 2 (3) and the gantry frame 1 (2), a mobile plate (5) is slidably mounted on one end surface of the mobile frame (4), a welding head (6) is embedded and mounted inside the mobile plate (5), the number of the welding heads (6) is set to two in total and the welding directions of the two welding heads (6) are opposite; a heating plate (7) is fixedly mounted on the back side of the mobile plate (5) near one end of the welding head (6), an infrared temperature detector (8) is mounted on the back side of the mobile plate (5) and located on one side of the heating plate (7), and the back side of the mobile plate (5) is located on the infrared temperature detector (8). A depth camera (9) is installed at one side of the temperature detector (8); an ultrasonic flaw detection head (10) is installed on the back of the movable plate (5) at a position on one side of the depth camera (9); the number of the heating plate (7), the infrared temperature detector (8), the depth camera (9) and the ultrasonic flaw detection head (10) is respectively set to two and they are respectively arranged opposite to each other; a grid plate (13) is installed at the top of the stand (1) corresponding to the bottom of the gantry frame (2); rectangular blocks (14) are symmetrically fixedly installed at the top of the grid plate (13); flip plates (15) are rotatably installed at the middle positions of both sides of the top of the grid plate (13); and blocking plates (21) are symmetrically and movably installed at the front and back edges of the top of the grid plate (13).

2. The metal mask frame welding automation equipment according to claim 1, characterized in that: The blocking plate (21) and the flip plate (15) have the same shape, a rectangular block (14) is fixedly mounted on the top of the grid plate (13) at a position on one side of the flip plate (15) and the blocking plate (21), and through holes are provided at the four corners of the top of the grid plate (13) and the stand (1).

3. The metal mask frame welding automation equipment according to claim 1, characterized in that: An electric telescopic rod (11) is embedded and installed inside the movable frame (4), a slider (12) is fixedly installed at the bottom end of the electric telescopic rod (11), and the slider (12) is fixedly installed at one end of the movable plate (5).

4. The metal mask frame welding automation equipment according to claim 1, characterized in that: A positioning sleeve (18) is fixedly installed between the middle parts of the outer surfaces of the heating plate (7), the infrared temperature detector (8), the depth camera (9) and the ultrasonic flaw detection head (10); a positioning plate (16) is sleeved between the tops of the heating plate (7), the infrared temperature detector (8), the depth camera (9) and the ultrasonic flaw detection head (10); a rotating ring (19) is sleeved on the outer side of the positioning plate (16); a mounting plate (30) is fixedly installed on the top of the rotating ring (19); and one end surface of the mounting plate (30) is welded to one end surface of the movable plate (5).

5. The metal mask frame welding automation equipment according to claim 4, characterized in that: A motor (31) is fixedly mounted on the bottom end of the mounting plate (30), a rectangular column (17) is slidably connected inside the output shaft of the motor (31), and the rectangular column (17) is clamped inside the positioning sleeve (18) and the positioning plate (16).

6. The metal mask frame welding automation equipment according to claim 1, characterized in that: A column (32) is connected and penetrates the interior of the flip plate (15), and a torsion spring (33) is installed between the outer side of the column (32) and the inner wall of the flip plate (15).

7. The metal mask frame welding automation equipment according to claim 1, characterized in that: A mounting strip (22) is symmetrically fixedly mounted on one end surface of the baffle plate (21), a cylinder (23) is movably connected inside the mounting strip (22), a guide strip (24) is sleeved on the outside of the cylinder (23), and a connecting strip (25) is connected between two adjacent guide strips (24).

8. The metal mask frame welding automation equipment according to claim 7, characterized in that: The number of the connecting bars (25) is set to two in total, and sawtooth bars (26) are arranged alternately on the opposite surfaces of the two connecting bars (25). The opposite surfaces of the two sawtooth bars (26) are meshed with a same gear (27), and the gear (27) is rotatably connected to the top of the stand (1).

9. The metal mask frame welding automation equipment according to claim 8, characterized in that: A protrusion (28) is fixedly mounted on the bottom end of the sawtooth bar (26), and the protrusion (28) is slidably connected to the inside of the stand (1), and an electric telescopic rod three (29) is fixedly mounted on one end of one of the protrusions (28), and the fixed end of the electric telescopic rod three (29) is fixedly mounted inside the stand (1).

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