Hot-press gluing equipment
Through the design of the hot -pressed glue equipment of the multi -layer structure, combining the precise positioning technology of the cylinder and the guidance column, and the continuous cooling measures of the cooling board, the problem of insufficient location and expansion coefficients of metal parts and plastic parts in existing technologies. Achieve high -precision glue and improvement of processing quality.
Patent Information
- Application Number
- CN202310921707.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-26
- Publication Date
- 2025-01-28
AI Technical Summary
In the existing hot pressing and glueing technology, the position accuracy of metal parts and plastic parts is insufficient, and the expansion coefficient is inconsistent, which leads to easy dislocation after cooling and poor processing quality.
A hot -pressure glue equipment is designed with a multi -layered installation rack and mobile board, which combines the cylinder and guide column to achieve precise positioning and fixing of metal and plastic parts. At the same time, the cooling plate and the water -cooled machine are set on the surface of the lower mold to achieve continuous heat dissipation of plastic parts and reduce deformation.
Greatly improve the position accuracy of metal and plastic parts, reduce the dislocation of the collagen, improve the quality of processing, save spatial resources, and improve production efficiency.
Smart Images

Figure CN119369741A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of hot pressing and gluing, and in particular to a hot pressing and gluing device. Background Art
[0002] The manufacturing trend of computer shells is to have ultra-thin structures with a thin and light metal appearance. Therefore, the related metal stamping parts of notebook shells are also more and more widely used. At present, many laptops use aluminum as the material of the computer shell. Plastic parts are arranged inside the aluminum shell. In the production process, the plastic parts coated with adhesive need to be glued together with the metal parts. In the prior art, the gluing process of metal parts and plastic parts is generally achieved by a hot press. The hot press generally includes a lower mold and a heated upper mold. After the upper mold and the lower mold are molded together, the heated upper mold heats the metal part so that the adhesive acts between the metal part and the plastic part to complete the gluing of the metal part and the plastic part.
[0003] However, in the existing production process, the positional accuracy of metal parts and plastic parts is insufficient, and the expansion coefficients of metal parts and plastic parts are inconsistent, which leads to the two parts being easily misaligned after cooling, resulting in unsatisfactory processing quality. Summary of the invention
[0004] The purpose of the present invention is to provide a hot pressing bonding device, which not only reduces the thermal deformation of plastic parts, but also greatly improves the position accuracy of metal parts and plastic parts, and effectively reduces the misalignment of the two after bonding.
[0005] To achieve the above object, the technical solution adopted by the present invention is: a hot pressing gluing device, comprising: a box body, a mounting frame is arranged above the box body, a first movable plate, a first fixed plate and a second movable plate and a second fixed plate are arranged inside the mounting frame, the first fixed plate and the second fixed plate are both arranged in the middle of the mounting frame, and the first fixed plate is located above the second fixed plate, the first movable plate is arranged above the first fixed plate, the second movable plate is arranged below the second fixed plate, and a cylinder is arranged on the opposite sides of the first movable plate and the second movable plate; An upper mold is respectively arranged below the first movable plate and the second fixed plate, a heating plate is arranged between the upper mold and the first movable plate, and between the upper mold and the second fixed plate, a metal lower mold is respectively arranged above the first fixed plate and the second movable plate, a cooling plate is arranged on the lower surface of the metal lower mold, the cooling plate is connected to a water cooler, and the water inlet pipe of the water cooler is connected to the water outlet end of the cooling plate, and the water outlet pipe of the water cooler is connected to the water inlet end of the cooling plate, so that the liquid in the cooling plate flows; A plurality of first positioning posts, a second positioning post and a third positioning post are arranged on the upper surface of the metal lower mold, a heat conducting plate located on the upper surface of the metal lower mold is correspondingly sleeved on the circumferential outer walls of the first positioning post, the second positioning post and the third positioning post, and the plastic part is placed on the upper surface of the heat conducting plate, and the metal part located above the plastic part is sleeved on the circumferential outer wall of the third positioning post; A first limiting column is arranged on the top of the first positioning column, and the first limiting column can penetrate the metal part and be embedded in the first limiting hole of the upper mold. A second limiting column is arranged on the top of the second positioning column, and the plastic part is provided with a plurality of second limiting holes corresponding to the second limiting column.
[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, a heat insulation plate fixedly connected to a first guide column is provided on the lower surface of the upper mold, and a guide groove for the first guide column to be embedded is opened on the upper surface of the metal lower mold.
[0007] 2. In the above solution, a second guide column is provided between the first movable plate and the first fixed plate, and between the second movable plate and the second fixed plate.
[0008] 3. In the above solution, a first guide flange is sleeved on the second guide column on the opposite sides of the first movable plate and the second movable plate.
[0009] 4. In the above solution, four second guide columns are provided.
[0010] 5. In the above scheme, a first through hole is opened between the upper and lower surfaces of the cooling plate, and a plurality of equal-height columns are arranged between the second movable plate and the metal lower mold and between the first fixed plate and the metal lower mold, and the equal-height columns are located between the inner walls of the first through hole.
[0011] 6. In the above solution, the top end of the first limiting column is provided with an arc chamfer.
[0012] 7. In the above solution, the third positioning column includes a square column and a T-shaped column.
[0013] 8. In the above solution, a plurality of connecting columns are arranged between the first fixing plate and the second fixing plate.
[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The hot pressing and gluing equipment of the present invention has two heating plates respectively arranged between the upper mold and the first movable plate, and between the upper mold and the second fixed plate. A metal lower mold is respectively arranged above the first fixed plate and the second movable plate. A cooling plate is arranged on the lower surface of the metal lower mold. The cooling plate is connected to a water cooler, and a water inlet pipe of the water cooler is connected to a water outlet end of the cooling plate. The water outlet pipe of the water cooler is connected to the water inlet end of the cooling plate, so that liquid flows in the cooling plate. When the mold is closed, the upper mold heats the metal part. The heat conducting plate with the plastic part installed is arranged on the upper surface of the metal lower mold. The cooling plate is in continuous contact with the metal lower mold, which can realize continuous heat dissipation of the plastic part, is conducive to maintaining the temperature stability of the plastic part, thereby reducing the deformation of the plastic part and greatly improving the processing quality. Furthermore, the heat conducting plate located on the upper surface of the metal lower mold is correspondingly mounted on the first positioning column, the second positioning column and the third positioning column. The third positioning column is provided on the circumferential outer wall of the positioning column, and the plastic part is placed on the upper surface of the heat conducting plate, and the metal part located above the plastic part is sleeved on the circumferential outer wall of the third positioning column, and a first limiting column is arranged on the top of the first positioning column, and the first limiting column can penetrate the metal part and be embedded in the first limiting hole of the upper mold, and a second limiting column is arranged on the top of the second positioning column, and the plastic part is provided with a plurality of second limiting holes corresponding to the second limiting column. By the first positioning column, the second positioning column and the third positioning column arranged on the upper surface of the metal lower mold, by the first limiting column cooperating with the metal part and the upper mold, and the second limiting column cooperating with the plastic part, the positioning and fixing of the metal part and the plastic part are realized, the position accuracy of the metal part and the plastic part is greatly improved, and the misalignment of the two after gluing is effectively reduced, and the position accuracy of the upper and lower molds is also improved, and the pressing effect of the upper and lower molds on the metal part and the plastic part is improved.
[0015] 2. The hot pressing gluing equipment of the present invention has a mounting frame arranged above the box body, and the first movable plate, the first fixed plate and the second movable plate and the second fixed plate are arranged inside the mounting frame, the first fixed plate and the second fixed plate are both arranged in the middle of the mounting frame, and the first fixed plate is located above the second fixed plate, the first movable plate is arranged above the first fixed plate, and the second movable plate is arranged below the second fixed plate, and a cylinder is arranged on the opposite sides of the first movable plate and the second movable plate, and through the cooperation of the first movable plate and the first fixed plate with the second movable plate and the second fixed plate, simultaneous processing can be achieved in the same area, which saves space resources and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Attached Figure 1 It is a structural schematic diagram of the hot pressing bonding equipment of the present invention; Attached Figure 2 The local structure diagram of the hot pressing bonding device of the present invention is shown in FIG. Figure 1 ; Attached Figure 3The local structure diagram of the hot pressing bonding device of the present invention is shown in FIG. Figure 2 ; Attached Figure 4 It is a schematic diagram of the partial exploded structure of the hot pressing bonding device of the present invention; Attached Figure 5 It is a structural schematic diagram of the lower mold in the hot pressing and gluing equipment of the present invention; Attached Figure 6 The local structure diagram of the hot pressing bonding device of the present invention is shown in FIG. Figure 3 ; Attached Figure 7 The local structure diagram of the hot pressing bonding device of the present invention is shown in FIG. Figure 4 .
[0017] In the above drawings: 100, metal parts; 200, plastic parts; 1, box body; 2, mounting frame; 31, first movable plate; 32, second movable plate; 41, first fixed plate; 42, second fixed plate; 6, cylinder; 7, upper mold; 71, metal plate; 72, silicone plate; 8, heating plate; 9, lower mold; 10, cooling plate; 11, water cooler; 111, water inlet pipe; 112, water outlet pipe; 12, heat conduction plate; 13, first positioning column; 14, second positioning column; 15, third positioning column; 16, first limiting column; 17, second limiting column; 18, first limiting hole; 19, second limiting hole; 20, insulation board; 21, first guide column; 22, guide groove; 23, second guide column; 24, first guide flange; 25, connecting column; 26, equal height column; 27, first through hole; 28, diverter. Implementation
[0018] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.
[0019] Embodiment 1: A hot pressing bonding device, used for hot pressing bonding of a metal part 100 and a plastic part 200, comprises: a box body 1, a mounting frame 2 is arranged above the box body 1, a first movable plate 31, a first fixed plate 41, a second movable plate 32, and a second fixed plate 42 are arranged inside the mounting frame 2, the first fixed plate 41 and the second fixed plate 42 are both arranged in the middle of the mounting frame 2, and the first fixed plate 41 is located above the second fixed plate 42, the first movable plate 31 is arranged above the first fixed plate 41, and the second movable plate 32 is arranged below the second fixed plate 42, and a cylinder 6 is arranged on the opposite sides of the first movable plate 31 and the second movable plate 32; Start the cylinder on the mounting frame, so that the first movable plate and the second movable plate cooperate with the first fixed plate and the second fixed plate, and the first positioning column on the surface of the lower mold cooperates with the first limiting hole on the surface of the silicone plate of the upper mold, which greatly improves the position accuracy of the upper and lower molds; An upper mold 7 is disposed below the first movable plate 31 and the second fixed plate 42, respectively. A heating plate 8 is disposed between the upper mold 7 and the first movable plate 31 and between the upper mold 7 and the second fixed plate 42. A metal lower mold 9 is disposed above the first fixed plate 41 and the second movable plate 32, respectively. A cooling plate 10 is disposed on the lower surface of the metal lower mold 9. The cooling plate 10 is connected to a water cooler 11, and a water inlet pipe 111 of the water cooler 11 is connected to a water outlet end of the cooling plate 10, and a water outlet pipe 112 of the water cooler 11 is connected to a water inlet end of the cooling plate 10, so that liquid in the cooling plate 10 flows; Start the water cooler, and the water coolant enters the cooling plate from the outlet pipe, and then flows back to the water cooler through the inlet pipe, thus forming a circulation inside the cooling plate. The water coolant flowing inside the cooling plate takes away the heat generated by the metal parts and plastic parts during hot pressing, thus avoiding deformation of the metal parts due to excessive temperature. A plurality of first positioning columns 13, second positioning columns 14 and third positioning columns 15 are arranged on the upper surface of the metal lower mold 9, a heat conducting plate 12 located on the upper surface of the metal lower mold 9 is correspondingly mounted on the circumferential outer walls of the first positioning columns 13, the second positioning columns 14 and the third positioning columns 15, and the plastic part 200 is placed on the upper surface of the heat conducting plate 12, and the metal part 100 located above the plastic part 200 is mounted on the circumferential outer wall of the third positioning column 15; A first limiting post 16 is arranged on the top of the first positioning post 13, and the first limiting post 16 can penetrate the metal part 100 and be embedded in the first limiting hole 18 of the upper mold 7. A second limiting post 17 is arranged on the top of the second positioning post 14, and the plastic part 200 is provided with a plurality of second limiting holes 19 corresponding to the second limiting post 17. The plastic part is placed on the lower mold, and the second positioning column and the second limiting column arranged on the surface of the lower mold cooperate with the second limiting hole on the surface of the plastic part, so that the positioning accuracy of the plastic part is greatly improved. The metal part is covered on the plastic part, and the positioning accuracy of the metal part is greatly improved through the cooperation of the first positioning column, the first limiting column and the third positioning column.
[0020] A heat insulation plate 20 fixedly connected with a first guide column 21 is disposed on the lower surface of the upper mold 7 , and a guide groove 22 for the first guide column 21 to be embedded is opened on the upper surface of the metal lower mold 9 .
[0021] Second guide posts 23 are disposed between the first movable plate 31 and the first fixed plate 41 , and between the second movable plate 32 and the second fixed plate 42 .
[0022] Four second guide pillars 23 are provided.
[0023] A first through hole 27 is formed between the upper and lower surfaces of the cooling plate 14 , and a plurality of equal-height columns 26 are provided between the second movable plate 32 and the metal lower mold 9 and between the first fixed plate 41 and the metal lower mold 9 . The equal-height columns 26 are located between the inner walls of the first through hole 27 .
[0024] The upper mold 7 further includes a metal plate 71 and a silicone plate 72 , and the silicone plate 72 has a first limiting hole 18 .
[0025] A first guide flange 24 is sleeved on the second guide column 23 and on the opposite sides of the first moving plate 31 and the second moving plate 32 .
[0026] A plurality of connection columns 25 are disposed between the first fixing plate 41 and the second fixing plate 42 .
[0027] The metal plate 71 is an aluminum plate.
[0028] The metal lower mold 9 is an iron lower mold.
[0029] The heat conducting plate 8 is a copper plate.
[0030] Embodiment 2: A hot pressing gluing device comprises: a box body 1, a mounting frame 2 is arranged above the box body 1, a first movable plate 31, a first fixed plate 41, a second movable plate 32, and a second fixed plate 42 are arranged inside the mounting frame 2, the first fixed plate 41 and the second fixed plate 42 are both arranged in the middle of the mounting frame 2, and the first fixed plate 41 is located above the second fixed plate 42, the first movable plate 31 is arranged above the first fixed plate 41, and the second movable plate 32 is arranged below the second fixed plate 42, and a cylinder 6 is arranged on the opposite sides of the first movable plate 31 and the second movable plate 32; Through the cooperation of the first movable plate, the first fixed plate and the second movable plate, the second fixed plate, two simultaneous processes can be realized in the same area, thus saving space resources and improving production efficiency; An upper mold 7 is disposed below the first movable plate 31 and the second fixed plate 42, respectively. A heating plate 8 is disposed between the upper mold 7 and the first movable plate 31 and between the upper mold 7 and the second fixed plate 42. A metal lower mold 9 is disposed above the first fixed plate 41 and the second movable plate 32, respectively. A cooling plate 10 is disposed on the lower surface of the metal lower mold 9. The cooling plate 10 is connected to a water cooler 11, and a water inlet pipe 111 of the water cooler 11 is connected to a water outlet end of the cooling plate 10, and a water outlet pipe 112 of the water cooler 11 is connected to a water inlet end of the cooling plate 10, so that liquid in the cooling plate 10 flows; While the mold is being closed, the upper mold heats the metal part, and the heat conducting plate with the plastic part installed is arranged on the upper surface of the metal lower mold. The cooling plate is in continuous contact with the metal lower mold, which can achieve continuous heat dissipation of the plastic part, which is beneficial to maintaining the temperature stability of the plastic part, thereby reducing the deformation of the plastic part and greatly improving the processing quality. A plurality of first positioning columns 13, second positioning columns 14 and third positioning columns 15 are arranged on the upper surface of the metal lower mold 9, a heat conducting plate 12 located on the upper surface of the metal lower mold 9 is correspondingly mounted on the circumferential outer walls of the first positioning columns 13, the second positioning columns 14 and the third positioning columns 15, and the plastic part 200 is placed on the upper surface of the heat conducting plate 12, and the metal part 100 located above the plastic part 200 is mounted on the circumferential outer wall of the third positioning column 15; A first limiting post 16 is arranged on the top of the first positioning post 13, and the first limiting post 16 can penetrate the metal part 100 and be embedded in the first limiting hole 18 of the upper mold 7. A second limiting post 17 is arranged on the top of the second positioning post 14, and the plastic part 200 is provided with a plurality of second limiting holes 19 corresponding to the second limiting post 17. By arranging the first positioning column, the second positioning column and the third positioning column on the upper surface of the metal lower mold, the positioning accuracy of the heat conducting plate is greatly improved. The first limiting column cooperates with the metal parts and the upper mold, and the second limiting column cooperates with the plastic parts. On the basis of realizing the positioning and fixation of the metal parts and the plastic parts, the positioning accuracy of the upper and lower molds is also improved, thereby improving the pressing effect of the upper and lower molds on the metal parts and the plastic parts.
[0031] A heat insulation plate 20 fixedly connected with a first guide column 21 is disposed on the lower surface of the upper mold 7 , and a guide groove 22 for the first guide column 21 to be embedded is provided on the upper surface of the metal lower mold 9 .
[0032] A first through hole 27 is formed between the upper and lower surfaces of the cooling plate 14 , and a plurality of equal-height columns 26 are provided between the second movable plate 32 and the metal lower mold 9 and between the first fixed plate 41 and the metal lower mold 9 . The equal-height columns 26 are located between the inner walls of the first through hole 27 .
[0033] The top end of the first limiting column 16 is provided with an arc chamfer.
[0034] The third positioning column 15 includes a square column and a T-shaped column.
[0035] The upper mold 7 further includes a metal plate 71 and a silicone plate 72 , and the silicone plate 72 has a first limiting hole 18 .
[0036] A first guide flange 24 is sleeved on the second guide column 23 and on the opposite sides of the first moving plate 31 and the second moving plate 32 .
[0037] A plurality of connection columns 25 are disposed between the first fixing plate 41 and the second fixing plate 42 .
[0038] The metal plate 71 is made of copper.
[0039] The metal lower mold 9 is made of aluminum.
[0040] The heat conducting plate 8 is made of aluminum.
[0041] A flow divider 28 is provided between the cooling plate 10 and the water outlet pipe 112 and the water inlet pipe 111 of the water cooler 11 .
[0042] The working principle is as follows: when in use, the plastic part is placed on the lower mold, and the second positioning column and the second limiting column provided on the surface of the lower mold cooperate with the second limiting hole on the surface of the plastic part, so that the position accuracy of the plastic part is greatly improved, and the metal part is covered on the plastic part, and the position accuracy of the metal part is greatly improved through the cooperation of the first positioning column, the first limiting column and the third positioning column; Start the water cooler, and the water coolant enters the cooling plate from the outlet pipe, and then flows back to the water cooler through the inlet pipe, thus forming a circulation inside the cooling plate. The water coolant flowing inside the cooling plate takes away the heat generated by the metal parts and plastic parts during hot pressing, thus avoiding deformation of the metal parts due to excessive temperature. Start the cylinder located on the mounting frame, so that the first movable plate and the second movable plate cooperate with the first fixed plate and the second fixed plate, and the first positioning column on the surface of the lower mold cooperates with the first limiting hole on the surface of the silicone plate of the upper mold, which greatly improves the position accuracy of the upper and lower molds.
[0043] When the above-mentioned hot pressing and gluing equipment is used, it can realize two simultaneous processing in the same area through the cooperation of the first movable plate, the first fixed plate and the second movable plate, the second fixed plate, thereby saving space resources and improving production efficiency; while closing the mold, the upper mold heats the metal part, and the heat conducting plate with the plastic part installed is arranged on the upper surface of the metal lower mold, and the cooling plate is in continuous contact with the metal lower mold, which can realize continuous heat dissipation of the plastic part, which is beneficial to maintaining the temperature stability of the plastic part, thereby reducing the deformation of the plastic part and greatly improving the processing quality; at the same time, the first positioning column, the second positioning column, and the third positioning column arranged on the upper surface of the metal lower mold are used to greatly improve the position accuracy of the heat conducting plate, and the first limiting column cooperates with the metal part and the upper mold, and the second limiting column cooperates with the plastic part, on the basis of realizing the positioning and fixation of the metal part and the plastic part, the position accuracy of the upper and lower molds is also improved, thereby improving the pressing effect of the upper and lower molds on the metal parts and the plastic parts.
[0044] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.
Claims
1. A hot pressing bonding device, used for hot pressing bonding a metal part (100) and a plastic part (200), comprising: A box body (1), characterized in that: a mounting frame (2) is arranged above the box body (1), a first movable plate (31), a first fixed plate (41) and a second movable plate (32), a second fixed plate (42) are arranged inside the mounting frame (2), the first fixed plate (41) and the second fixed plate (42) are both arranged in the middle of the mounting frame (2), and the first fixed plate (41) is located above the second fixed plate (42), the first movable plate (31) is arranged above the first fixed plate (41), the second movable plate (32) is arranged below the second fixed plate (42), and a cylinder (6) is arranged on the opposite sides of the first movable plate (31) and the second movable plate (32); An upper mold (7) is disposed below the first movable plate (31) and the second fixed plate (42), respectively; a heating plate (8) is disposed between the upper mold (7) and the first movable plate (31), and between the upper mold (7) and the second fixed plate (42); a metal lower mold (9) is disposed above the first fixed plate (41) and the second movable plate (32), respectively; a cooling plate (10) is disposed on the lower surface of the metal lower mold (9); the cooling plate (10) is connected to a water cooler (11), and a water inlet pipe (111) of the water cooler (11) is connected to a water outlet end of the cooling plate (10), and a water outlet pipe (112) of the water cooler (11) is connected to a water inlet end of the cooling plate (10), so that liquid in the cooling plate (10) flows; A plurality of first positioning columns (13), second positioning columns (14) and third positioning columns (15) are arranged on the upper surface of the metal lower mold (9); a heat conducting plate (12) located on the upper surface of the metal lower mold (9) is correspondingly sleeved on the circumferential outer walls of the first positioning columns (13), the second positioning columns (14) and the third positioning columns (15); the plastic part (200) is placed on the upper surface of the heat conducting plate (12); and the metal part (100) located above the plastic part (200) is sleeved on the circumferential outer wall of the third positioning column (15); A first limiting column (16) is arranged on the top of the first positioning column (13), and the first limiting column (16) can pass through the metal part (100) and be embedded in the first limiting hole (18) of the upper mold (7). A second limiting column (17) is arranged on the top of the second positioning column (14), and the plastic part (200) is provided with a plurality of second limiting holes (19) corresponding to the second limiting columns (17).
2. The hot pressing bonding device according to claim 1, characterized in that: A heat insulation plate (20) fixedly connected to a first guide column (21) is provided on the lower surface of the upper mold (7), and a guide groove (22) for the first guide column (21) to be embedded is provided on the upper surface of the metal lower mold (9).
3. The hot pressing bonding device according to claim 1 or 2, characterized in that: A second guide column (23) is provided between the first movable plate (31) and the first fixed plate (41), and between the second movable plate (32) and the second fixed plate (42).
4. The hot pressing bonding device according to claim 3, characterized in that: A first guide flange (24) is sleeved on the second guide column (23) and on the opposite sides of the first movable plate (31) and the second movable plate (32).
5. The hot pressing bonding device according to claim 3, characterized in that: Four second guide columns (23) are provided.
6. The hot pressing bonding device according to claim 1, characterized in that: A first through hole (27) is formed between the upper and lower surfaces of the cooling plate (14), and a plurality of equal-height columns (26) are provided between the second movable plate (32) and the metal lower mold (9), and between the first fixed plate (41) and the metal lower mold (9), wherein the equal-height columns (26) are located between the inner walls of the first through hole (27).
7. The hot pressing bonding device according to claim 1, characterized in that: The top end of the first limiting column (16) is provided with an arc chamfer.
8. The hot pressing bonding device according to claim 1, characterized in that: The third positioning column (15) comprises a square column and a T-shaped column.
9. The hot pressing bonding device according to claim 1, characterized in that: A plurality of connecting columns (25) are provided between the first fixing plate (41) and the second fixing plate (42).