End splicing angle processing method for profiles used in the frame of solar modules

Abstract

The present invention relates to a method for processing the end splicing angles of a profile for a solar module frame, which is characterized by comprising the following steps: preparing a profile blank, a primary punching mechanism, and a secondary punching mechanism. The primary punching mechanism is used to punch out a rectangular notch on the inner wall of the cavity at both ends of the profile blank to obtain a semi-finished profile blank, completing the primary punching. The secondary punching mechanism is then used to punch out a portion of the end outside the bottom edge of the rectangular notch on the inner side of the semi-finished profile to obtain a finished profile with inclined surfaces on the same side at both ends. The method for processing the end splicing angles of a profile for a solar module frame of the present invention can improve the product qualification rate and reduce production costs. It is suitable for forming the splicing angles of the ends of profiles for solar module frames.

Description

Technical Field

[0001] The present invention relates to a method for processing a profile for a solar panel frame, and more particularly to a method for processing an end splicing angle of a profile for a solar panel frame. Background Art

[0002] As is well known in the solar panel manufacturing industry, solar panels are generally square or rectangular, with their frames formed by connecting four profiles and four L-shaped inserts. These profiles are typically bent from galvanized magnesium-aluminum strip. When in use, their lower cross-section forms a rectangular cavity, with a groove machined into the upper portion to accommodate the edge of the solar panel. The lower wall of the rectangular cavity has an inner ridge for securing it to the bracket. This structure requires the inner edges of the four profiles to be machined into inclined surfaces, allowing them to be joined together by the four profiles and four L-shaped inserts to form a rectangular frame with 90-degree corners.

[0003] Currently, the method for machining the end joint angles of solar module frame profiles involves first securing the profile to a platen and then using a CNC double-headed electric saw with both sides tilted inward to cut the profile at both ends, removing a 45-degree angle from the inner sides of each end. While this method can achieve the desired end joint angles, the profiles used in solar module frames are typically made from bent galvanized magnesium-aluminum strips, which are relatively thin and hard. Using a CNC double-headed electric saw to saw the ends of the profiles can lead to a blunting of the saw blade's cutting edge over the number of cuts. Once a blunting blade has developed, continued use of the blunted blade increases the force applied to the blade during contact with the profile, causing the blade to shift, making it difficult to cut a qualified profile and compromising product quality. Furthermore, while a replacement blade can be used to overcome this problem, frequent blade replacements increase production costs. Moreover, replacing the saw blade requires stopping the machine, which makes production efficiency low. Summary of the Invention

[0004] The problem to be solved by the present invention is to overcome the above-mentioned shortcomings and provide a method for processing the end joint angles of the profile used for the solar module frame. The present invention can improve the product qualification rate, reduce production costs and improve production efficiency.

[0005] The above-mentioned problem to be solved by the present invention is achieved by the following technical solutions:

[0006] The method for processing the end joint angle of the solar module frame profile of the present invention is characterized by comprising the following steps in sequence:

[0007] First prepare the profile blank, the primary punching mechanism and the secondary punching mechanism;

[0008] The profile blank is formed by bending a steel strip in the transverse direction and contains a cavity with a rectangular cross section. The upper wall of the cavity has a longitudinal groove outside, with the notch of the longitudinal groove facing inward. The inner edge of the lower wall of the cavity has a longitudinal convex edge.

[0009] The primary punching mechanism comprises a first base plate, which is a strip-shaped block with first fixed blocks connected to both ends. Each of the first fixed blocks is connected to a first horizontal push-pull mechanism. First slide rails are connected to the first base plate inside the first horizontal push-pull mechanism. The first slide rails are parallel to the first base plate and each has a first slider mounted thereon. The first slider is connected to the first horizontal push-pull mechanism, and each of the sliders is connected to a first oil cylinder on its upper inner side. The piston rod of the first oil cylinder faces downward and is sequentially connected to a first slide and a first punch. First guide blocks are located on both vertical sides of one side of the first slider adjacent to the first slide. The adjacent surfaces of the two first guide blocks each have vertical guide grooves, and the two vertical sides of the first slide slide in the corresponding vertical guide grooves. A first die is located at the center of the adjacent surfaces of the two first sliders. The first die has a rectangular cross-section that matches the cavity of the profile blank. One end of the die is fixedly connected to the first slider, while the other end flexibly extends into the cavity at the corresponding end of the profile blank. The first punch has a rectangular cross-section. The first female mold has a vertical hole corresponding to and matching the first male mold. A first positioning block is provided on the first bottom plate between the two first slide rails.

[0010] The secondary punching mechanism comprises a second base plate, which is a strip-shaped block with second fixed blocks attached to both ends. The second fixed blocks are each connected to a second horizontal push-pull mechanism, and second slide rails are attached to the inner second base plates of each of these fixed blocks. The second slide rails are parallel to the second base plate and each has a second slider. The second slider is connected to the second horizontal push-pull mechanism, and its upper outer surface is an inclined surface. The outer edge of the inclined surface is lower than its inner edge and has an upper convex edge. The inner portion of the second slider is connected to a second oil cylinder. The piston rod of the second oil cylinder is downwardly inclined and parallel to the inclined surface. The lower end of the piston rod is connected to a second slide and a second punch, respectively. Second guide blocks are attached to the inclined surfaces on both sides of the second slide. Second guide grooves are formed on the opposing surfaces of the two second guide blocks. The vertical sides of the second slide slide in the corresponding second guide grooves. The second punch is plate-shaped, with its upper edge connected to the lower side of the second slide and its lower edge having a V-shaped edge. The second slider has longitudinal through-holes that match the cross-sectional profile of the profile blank. The two ends of the profile blank are each movably inserted into the longitudinal through-holes of the corresponding second slider. The outer ends of each longitudinal through-hole have concave steps circumferentially located, with a second die embedded within these steps. The second die is a frame-shaped die that matches the cross-sectional profile of the profile blank. Corresponding to the longitudinal grooves in the profile blank, it has a lower protrusion that extends into the longitudinal grooves. When installed, the outer surface of the second die is flush with the inclined surface. A second positioning block is located on the second base plate between the two second slide rails.

[0011] Then, place the profile blank on the first positioning block with its inner side facing upward.

[0012] Then, the first horizontal push-pull mechanism is activated, and the two first slides are simultaneously pushed inward by the first horizontal push-pull mechanism. At the same time, the inner end of the first die is inserted into the corresponding end of the profile blank, and the two ends of the profile blank are respectively aligned with the vertical holes of the corresponding first punch and first die.

[0013] Afterwards, the first oil cylinder is started, and the piston rod of the first oil cylinder extends downward and drives the first slide and the first punch to move downward until a rectangular notch is punched out on the inner wall of the cavity at both ends of the profile blank, obtaining a semi-finished profile blank and completing one punching.

[0014] Afterwards, the semi-finished profile blank is fixed on the positioning block of the secondary punching mechanism, with its inner side, ie, the side with the rectangular notch, facing upward.

[0015] Afterwards, the second horizontal push-pull mechanism is started, and the second horizontal push-pull mechanism simultaneously pushes the two second sliders inward until the rectangular notches at both ends of the semi-finished profile blank extend beyond the inclined surface of the second slider, and the bottom edge of the rectangular notch is flush with the inclined surface.

[0016] Afterwards, the second oil cylinder is started, and the piston rod of the second oil cylinder drives the second slide to move downward along the second guide groove on the second guide block, while the second punch enters the rectangular notch along the inclined surface and the bottom edge of the rectangular notch at the end of the semi-finished profile in sequence until a part of the inner end of the semi-finished profile located above the inclined surface is punched out, thereby obtaining a finished profile with inclined surfaces on the same side at both ends.

[0017] in:

[0018] The first horizontal push-pull mechanism and the second horizontal push-pull mechanism are both cylinders, which are connected to the first slider and the second slider respectively by means of piston rods;

[0019] A first L-shaped block is provided on the first slider, a horizontal portion of the first L-shaped block is fixed on the first slider, and the first oil cylinder is fixed on the vertical portion of the first L-shaped block;

[0020] The second sliding block has a second L-shaped block on its upper portion, the vertical portion of the second L-shaped block is inclined toward its horizontal portion at an angle equal to that of the inclined surface, and the second oil cylinder is connected to the vertical portion of the second L-shaped block inclined toward its horizontal portion;

[0021] The adjacent surfaces of the first slider in the primary punching mechanism are each provided with a rectangular blind hole at the center, and one end of the die is tightly fixed in the rectangular blind hole;

[0022] The first slide in the primary punching mechanism has outer convex edges on both sides of a surface adjacent to the first sliding block, and the two outer convex edges are slidably placed in the vertical guide grooves on the adjacent surfaces of the two guide blocks;

[0023] The adjacent ends of the two first slide rails are each connected to a first limiting block;

[0024] The adjacent ends of the two second slide rails are both connected with second limiting blocks.

[0025] As can be seen from the above scheme, the present invention first uses a primary punching mechanism to punch a rectangular notch in the inner wall of the cavity at both ends of the profile blank, thereby obtaining a semi-finished profile blank. Then, a secondary punching mechanism is used to punch a reduced angle of inclination along the bottom edge of the rectangular notch and the inclined surface at both ends of the semi-finished profile blank, thereby obtaining a solar panel frame profile having inclined surfaces at both ends. During the primary punching process, the first die, inserted into the inner wall of the profile at both ends, prevents deformation of the profile ends after punching. Furthermore, because the rectangular notches are punched in the inner wall of the cavity at both ends of the profile, the second punch of the secondary punching mechanism begins punching downward against the bottom edge of the rectangular notch and the inclined surface of the second slider, until the inner wall of both ends of the semi-finished profile blank are punched reduced by an inclined angle. During the punching process, the support provided by the second die prevents deformation at the punching locations of the semi-finished profile blank's cavity. Compared with the prior art method of using a CNC double-headed electric saw to achieve the inclined angle sawing at both ends of the profile, this not only avoids the deformation of the rectangular cavity of the profile, improves the low product qualification rate, but also avoids the damage of the saw blade, reduces production costs. In addition, since there is no need to stop the machine to replace the saw blade, it improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the outer side of the processed profile blank;

[0027] Figure 2 yes Figure 1 Schematic diagram of the right side;

[0028] Figure 3 It is a schematic diagram of a punching mechanism;

[0029] Figure 4 yes Figure 3 AA cross-sectional view;

[0030] Figure 5 yes Figure 4 BB cross-sectional view;

[0031] Figure 6 This is a schematic diagram of a semi-finished profile after one punching;

[0032] Figure 7 yes Figure 6 Schematic diagram of the left side;

[0033] Figure 8 yes Figure 7 Schematic top view of

[0034] Figure 9 It is a schematic diagram of the secondary punching mechanism;

[0035] Figure 10 yes Figure 9 A magnified schematic diagram of point F;

[0036] Figure 11 yes Figure 9 CC cross-sectional view;

[0037] Figure 12 It is a schematic diagram of the profile after secondary punching;

[0038] Figure 13 yes Figure 12 Schematic diagram of the left side. DETAILED DESCRIPTION

[0039] The method for processing the end joint angle of the solar module frame profile of the present invention comprises the following steps in sequence:

[0040] First prepare the profile blank 10, the primary punching mechanism and the secondary punching mechanism.

[0041] like Figure 1 and Figure 2 As shown, the profile blank 10 is formed from a steel strip bent transversely and contains a cavity 1001 with a rectangular cross-section. A longitudinal groove 1002 is machined into the outer wall of the upper side of the cavity 1001, with the notch of the longitudinal groove 1002 facing inward (i.e., the side adjacent to the solar panel when installed). A longitudinal flange 1003 is machined into the inner edge of the lower wall of the cavity 1001 (the longitudinal flange 1003 refers to the longitudinal flange that protrudes on the side adjacent to the solar panel when installed and is connected to the solar panel support).

[0042] like Figure 3 、 Figure 4 and Figure 5As shown, the single punching mechanism includes a first base plate 11, which is a bar-shaped block with first fixed blocks 1 fixed on both ends. A first horizontal push-pull mechanism 2 is connected to each of the first fixed blocks 1. The first horizontal push-pull mechanism 2 is a cylinder, and a first slide rail 14 is fixed to the first base plate 11 on its inner side. The longitudinal direction of the first slide rail 14 is parallel to the longitudinal direction of the first base plate 11, and a first slider 3 that can slide along the longitudinal direction is provided on each of the first slide rails 14, and a first limit block 13 is connected to the adjacent end of each of the first sliders 3. The first slider 3 is connected to the cylinder piston rod serving as the first horizontal push-pull mechanism 2. A first L-shaped block 4 is provided on the first slider 3. The horizontal portion of the first L-shaped block 4 is fixed to the first slider 3, and the outer side surface of the vertical portion of the first slider 3 is flush with the inner side surface of the first slider 3. The adjacent surfaces of the vertical portions of the two first L-shaped blocks 4 are connected to a first oil cylinder 6. The piston rod of the first oil cylinder 6 faces downward and is connected in sequence to the first slide 7 and the first punch 8. First guide blocks 5 are connected to both vertical sides of one side of the first slider 3 adjacent to the first slide 7. Vertical guide grooves are machined on the adjacent surfaces of the two first guide blocks 5. The two vertical sides of the first slide 7 are slidably placed in the corresponding vertical guide grooves. A first die 9 is set at the center of the adjacent surfaces of the two first sliders 3. The cross-section of the first die 9 is rectangular and matches the inner cavity 1001 of the profile blank 10. One end of the die is fixedly connected to the first slider 3, and the other end is movable and extends into the cavity 1001 of the profile blank 10. The cross-section of the first punch 8 is rectangular. A vertical hole 91 is machined on the first die 9, which corresponds to and matches the first punch 8. Two first positioning blocks 12 are set on the first base plate 11 between the two first slide rails 14.

[0043] Wherein: the adjacent surface centers of the first sliding block 3 in the primary punching mechanism are processed with rectangular blind holes, and one end of the first die 9 is tightly fixed in the rectangular blind hole.

[0044] like Figures 9 to 11As shown, the secondary punching mechanism includes a second base plate 22, which is a bar-shaped block with second fixed blocks 15 fixed to both ends. A second horizontal push-pull mechanism 16, which is a pneumatic cylinder, is fixed to each of the second fixed blocks 15. Second slide rails 26 are fixed to the second base plate 22 on the inner side of each of the second fixed blocks 15. The longitudinal direction of the second slide rails 26 is parallel to the longitudinal direction of the second base plate 22, and each is provided with a second slider 17 that can slide along the longitudinal direction. Second limit blocks 24 are connected to the upper side of each of the adjacent ends. The second slider 17 is connected to the piston rod of the pneumatic cylinder serving as the second horizontal push-pull mechanism 16, and its upper outer side surface is an inclined surface 172. The outer edge of the inclined surface 172 is lower than its inner edge, and its outer edge is machined with an upper convex edge 171. The second L-shaped block 21 is provided on the portion of the second slider 17 within the inner edge. The vertical portion of the second L-shaped block 21 is tilted toward its transverse portion at an angle equal to that of the inclined surface 172. The second cylinder 20 is connected to the vertical portion of the second L-shaped block 21, which is tilted toward its transverse portion. The piston rod of the second cylinder 20 is tilted downward and parallel to the inclined surface 172. The lower end of the piston rod is connected in sequence to the second slide 19 and the second punch 18. Second guide blocks 27 are connected to the inclined surfaces 172 on either side of the second slide 19. Second guide grooves are machined into the opposing surfaces of these two second guide blocks 27. The vertical sides of the second slide 19 slide into their corresponding second guide grooves. The second punch 18 is plate-shaped, with a straight upper edge connected to the lower side of the second slide 19 and a V-shaped lower edge. The second slide 17 is machined with longitudinal through-holes that match the cross-sectional profile of the profile blank 10. The two ends of the profile blank 10 are each movably inserted into the longitudinal through-holes of the corresponding second slide 17. The outer ends of the longitudinal through-holes are machined with concave steps along their circumference, with a second die 25 embedded within these steps. The second die 25 is frame-shaped and conforms to the cross-sectional profile of the profile blank 10. A lower protrusion 251 is machined into the portion corresponding to the longitudinal groove 1002 in the profile blank 10, extending into the longitudinal groove 1002. The outer surface of the second die 25 is flush with the inclined surface 172. Two second positioning blocks 23 are provided on the second base plate 22 between the two second slide rails 26. A spacing is provided between the two second positioning blocks 23 and between each second positioning block 23 and the corresponding second slide rail 26.

[0045] Then, the profile blank 10 is placed on the first positioning block 12 with its inner side (ie, the side adjacent to the edge of the solar module in the installed state) facing upward.

[0046] After that, the first horizontal push-pull mechanism 2 is activated, and the two first slide blocks 3 are simultaneously pushed inward by the two first horizontal push-pull mechanisms 2. At the same time, the inner end of the first die 9 is inserted into the corresponding end of the profile blank 10, and the two ends of the profile blank 10 are respectively aligned with the corresponding vertical holes 91 of the first punch 8 and the first die 9.

[0047] After that, the first oil cylinder 6 is started, and the piston rod of the first oil cylinder 6 extends downward and drives the first slide 7 and the first punch 8 to move downward until a rectangular notch 1004 is punched out on the inner wall of the cavity 1001 at both ends of the profile blank 10, thereby obtaining the semi-finished profile blank 101 (see FIG. Figures 6 to 8 ), complete one punching.

[0048] Then, the semi-finished profile blank 101 is fixed on the positioning block 23 of the secondary punching mechanism, with its inner side, i.e., the side with the rectangular notch 1004, facing upwards;

[0049] Afterwards, the second horizontal push-pull mechanism 16 is started, and the second horizontal push-pull mechanism 16 simultaneously pushes the two second sliders 17 inward until the rectangular notches 1004 at both ends of the semi-finished profile blank 101 extend beyond the inclined surface 172 of the second slider 17, and the bottom edge 1005 of the rectangular notch 1004 is flush with the inclined surface 172.

[0050] After that, the second oil cylinder 20 is activated, and the piston rod of the second oil cylinder 20 drives the second slide 19 to move downward along the second guide groove on the second guide block 27, while the second punch 18 enters the rectangular notch 1004 along the inclined surface 172 and the bottom edge 1005 of the rectangular notch 1004 at the end of the semi-finished profile 101, until a portion of the inner end of the semi-finished profile 101 located above the inclined surface 172 is punched out, resulting in a finished profile with a 45-degree bevel on both ends. Figure 12 、 Figure 13 .

Claims

1. A method for processing the end joint angles of a solar panel frame profile, characterized in that The following steps are included in sequence: First, prepare the profile blank (10), the primary punching mechanism and the secondary punching mechanism; The profile blank (10) is formed by bending a steel strip in the transverse direction, and comprises a cavity (1001) with a rectangular cross section; a longitudinal groove (1002) is provided outside the upper wall of the cavity (1001), and the notch of the longitudinal groove (1002) faces inward; a longitudinal convex edge (1003) is provided on the inner edge of the lower wall of the cavity (1001); The single punching mechanism comprises a first bottom plate (11), which is a strip-shaped block, and is connected to a first fixed block (1) on both ends; the first fixed block (1) is connected to a first horizontal push-pull mechanism (2), and the first bottom plate (11) inside the first horizontal push-pull mechanism (2) is connected to a first slide rail (14); the first slide rail (14) is parallel to the first bottom plate (11), and is provided with a first slider (3); the first slider (3) is connected to the first horizontal push-pull mechanism (2), and is connected to a first oil cylinder (6) on the inner side surface of the upper part; the piston rod of the first oil cylinder (6) faces downward and is connected to a first slide seat (7) and a first punch (8) in sequence; a first guide block (5) is provided on both vertical sides of a side of the first slider (3) adjacent to the first slide seat (7), and the two guide blocks (5) are provided on both vertical sides. Each of the adjacent surfaces of the first guide blocks (5) has a vertical guide groove, and the two vertical sides of the first slide seat (7) are both placed in the corresponding vertical guide groove in a sliding manner; the adjacent surface centers of the two first sliders (3) have a first die (9), the cross section of the first die (9) is rectangular, and it is adapted to the inner cavity of the cavity (1001) of the profile blank (10), one end of the first die (9) is fixedly connected to the first slider (3), and the other end is movably extended into the cavity (1001) of the corresponding end of the profile blank (10); the cross section of the first punch (8) is rectangular; the first die (9) has a vertical hole (91), which corresponds to and is adapted to the first punch (8); a first positioning block (12) is provided on the first bottom plate (11) between the two first slide rails (14); The secondary punching mechanism comprises a second bottom plate (22), which is a strip-shaped block, and is connected to a second fixed block (15) on both ends; the second fixed block (15) is connected to a second horizontal push-pull mechanism (16), and the second bottom plate (22) inside the second fixed block (15) is connected to a second slide rail (26); the second slide rail (26) is parallel to the second bottom plate (22), and is provided with a second slider (17); the second slider (17) is connected to the second horizontal push-pull mechanism (16), and the outer side of the upper portion thereof is connected to the second fixed block (15). The surface is an inclined surface (172); the outer edge of the inclined surface (172) is lower than the inner edge thereof, and the outer edge thereof has an upper convex edge (171), and the second slide block (17) inside the inner edge thereof is connected to the second oil cylinder (20); the piston rod of the second oil cylinder (20) is inclined downward and parallel to the inclined surface (172), and the lower end of the piston rod is connected to the second slide seat (19) and the second punch (18) in sequence; the inclined surfaces (172) on both sides of the second slide seat (19) are connected to second guide blocks (27), The two second guide blocks (27) have second guide grooves on their opposite surfaces; the vertical sides of the second slide (19) are both placed in the corresponding second guide grooves in a sliding manner; the second punch (18) is in a plate shape, the upper side of which is connected to the lower side of the second slide (19), and the lower side is a V-shaped side; the second slider (17) has a longitudinal through hole adapted to the cross-sectional profile of the profile blank (10), and the two ends of the profile blank (10) are respectively movably extended into the corresponding longitudinal through hole; the outer end of the longitudinal through hole has a circumferential a concave step, wherein a second die (25) is embedded in the concave step; the second die (25) is frame-shaped and adapted to the cross-sectional profile of the profile blank (10), and has a lower protrusion (251) extending into the longitudinal groove (1002) at a position corresponding to the longitudinal groove (1002) on the profile blank (10); in the installed state, the outer side surface of the second die (25) is flush with the inclined surface (172); a second positioning block (23) is provided on the second bottom plate (22) between the two second slide rails (26); Then, the profile blank (10) is placed on the first positioning block (12) with its inner side facing upwards; Afterwards, the first horizontal push-pull mechanism (2) is activated, and the first horizontal push-pull mechanism (2) simultaneously pushes the two first slide blocks (3) to move inward; at the same time, the inner end of the first die (9) is extended into the corresponding end of the profile blank (10), and the two ends of the profile blank (10) are respectively aligned with the corresponding vertical holes (91) of the first punch (8) and the first die (9); Afterwards, the first oil cylinder (6) is started, and the piston rod of the first oil cylinder (6) extends downward and drives the first slide (7) and the first punch (8) to move downward until a rectangular notch (1004) is punched out on the inner side wall of the cavity (1001) at both ends of the profile blank (10), thereby obtaining a semi-finished profile blank (101) and completing one punching; Then, the semi-finished profile blank (101) is fixed on the positioning block (23) of the secondary punching mechanism, with its inner side, i.e., the side with the rectangular notch (1004), facing upwards; Afterwards, the second horizontal push-pull mechanism (16) is activated, and the second horizontal push-pull mechanism (16) simultaneously pushes the two second sliders (17) inward until the rectangular notches (1004) at both ends of the semi-finished profile blank (101) extend beyond the inclined surface (172) of the second slider (17), and the bottom edge (1005) of the rectangular notch (1004) is flush with the inclined surface (172); Afterwards, the second oil cylinder (20) is started, and the piston rod of the second oil cylinder (20) drives the second slide (19) to move downward along the second guide groove on the second guide block (27), while the second punch (18) is sequentially moved along the inclined surface (172) and the bottom edge (1005) of the rectangular notch (1004) at the end of the semi-finished profile blank (101) into the rectangular notch (1004) until a portion of the inner end of the semi-finished profile blank (101) located above the inclined surface (172) is punched out, thereby obtaining a finished profile with inclined surfaces on both ends of the same side.

2. The method for processing the end joint angle of the solar module frame profile according to claim 1, characterized in that: The first horizontal push-pull mechanism (2) and the second horizontal push-pull mechanism (16) are both cylinders, and are respectively connected to the first slider (3) and the second slider (17) by means of piston rods.

3. The method for processing the end joint angle of the solar module frame profile according to claim 1, characterized in that: A first L-shaped block (4) is provided on the first slider (3), the horizontal portion of the first L-shaped block being fixed on the first slider (3), and the first oil cylinder (6) being fixed on the vertical portion of the first L-shaped block (4).

4. The method for processing the end joint angle of the solar module frame profile according to claim 1, characterized in that: The second sliding block (17) has a second L-shaped block (21) on its upper portion, the vertical portion of the second L-shaped block (21) being inclined toward its horizontal portion at an angle equal to that of the inclined surface (172), and the second oil cylinder (20) being connected to the vertical portion of the second L-shaped block (21) being inclined toward its horizontal portion.

5. The method for processing the end joint angle of the solar module frame profile according to claim 1, characterized in that: The adjacent surfaces of the first slider (3) in the primary punching mechanism are each provided with a rectangular blind hole at their centers, and one end of the die (9) is tightly fixed in the rectangular blind hole.

6. The method for processing the end joint angle of the solar module frame profile according to claim 1, characterized in that: The first slide seat (7) in the primary punching mechanism has outer convex edges (71) on both sides of a surface adjacent to the first slider (3), and the two outer convex edges are slidably placed in the vertical guide grooves on the adjacent surfaces of the two guide blocks (5).

7. The method for processing the end joint angle of a solar module frame profile according to any one of claims 1 to 6, characterized in that: The adjacent ends of the two first slide rails (14) are both connected to first limit blocks (13).

8. The method for processing the end joint angle of a solar module frame profile according to any one of claims 1 to 6, characterized in that: The adjacent ends of the two second slide rails (26) are both connected to second limit blocks (24).

9. The method for processing the end joint angle of the solar module frame profile according to claim 7, characterized in that: The adjacent ends of the two second slide rails (26) are both connected to second limit blocks (24).

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