A fixed-length punching device for photovoltaic support processing

Abstract

This invention provides a fixed-length punching device for photovoltaic bracket processing, relating to the field of photovoltaic bracket processing technology. The fixed-length punching device includes a base, with a support frame and a gantry frame fixedly connected to the upper wall of the base. The support frame is located inside the gantry frame, and drive boxes are fixedly connected to opposite sides of the support frame. The drive boxes are fixedly connected to each other via sliding rods. A rotating shaft is rotatably connected through the center of the arc portion of each drive box, and sprockets are fixedly connected to both ends of the rotating shaft. The sprocket teeth are engaged with a chain. A hydraulic cylinder lifts and lowers the punch head to punch holes in the square tube, and in conjunction with a cutting mechanism and a ratchet mechanism, the device simultaneously performs punching, cutting of the square tube, and station movement. This achieves the effect of simultaneous processing of all steps in the photovoltaic bracket processing, improving production efficiency while enabling the production of dimensionally accurate standard parts.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic bracket processing technology, specifically a fixed-length punching device for photovoltaic bracket processing. Background Technology

[0002] Photovoltaic panels need to be installed at a specific angle, and whether they are installed on the ground or on the roof, they need to be fixed in place to ensure stability. Usually, photovoltaic panels are fixed in place by photovoltaic brackets. Photovoltaic brackets are assembled from multiple C-shaped square tubes with mounting holes. The traditional production method of photovoltaic brackets is to use a stamping machine and a tube feeding machine to punch holes in the C-shaped square tubes at a fixed length continuously, and then cut them to the required length to obtain a series of square tube assemblies with holes.

[0003] However, this traditional production method has certain drawbacks. First, the tube feeding and punching process of the tube feeder has cumulative errors, which leads to deviations between the punching position and the predetermined position. The deviation in hole position will make subsequent assembly and use difficult. Similarly, during cutting, the cumulative errors will also result in inconsistent square tube lengths. Second, because the punching is done continuously, the overall production efficiency is not high. In summary, it is difficult to carry out large-scale production of standard parts using traditional production methods, which is not conducive to the expansion of the industry scale. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fixed-length punching device for photovoltaic bracket processing, which solves the problem that traditional production methods cannot produce large quantities of standard parts.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixed-length punching device for processing photovoltaic brackets, comprising a base, a support frame and a gantry frame fixedly connected to the upper wall of the base, the support frame being located inside the gantry frame, and drive boxes fixedly connected to opposite sides of the support frame, the drive boxes being fixedly connected to each other via sliding rods, and a rotating shaft being rotatably connected through the center of the arc portion of each drive box, with sprockets fixedly connected to both ends of the rotating shafts, the sprocket teeth being engaged with a chain, and the chain being fixedly connected to a lower mold via a fixing rod. The outer wall of the fixed rod passes through and is slidably connected to the side wall of the drive box. The lower wall of the lower mold located above the support frame contacts the upper wall of the support frame. A hydraulic cylinder is fixedly connected to the upper crossbeam of the gantry frame. A stamping frame is fixedly connected to the output end of the hydraulic cylinder. An upper mold corresponding to the lower mold is fixedly connected to the lower end of the stamping frame. A stamping head is fixedly connected to the lower wall of the upper mold. A ratchet mechanism is provided between one side of the stamping frame and the rotating shaft. The ratchet mechanism is configured to drive the rotating shaft to rotate by lifting the stamping frame. A cutting mechanism is provided on the other side of the stamping frame.

[0006] Preferably, the ratchet mechanism includes a ratchet, the middle of which is fixedly connected to the extended end of the rotating shaft. Pads are respectively provided on the tooth ends of both sides of the ratchet. The outer walls of the two pads are slidably connected to the inside of two limiting blocks. Fixed plates are fixedly connected to the outer walls of the limiting blocks. The seat ends of the two fixed plates are respectively fixedly connected to the upper wall of the base and the side wall of the stamping frame. The opposite ends of the two pads are respectively in contact with two flat springs. A portion of the side walls of the two flat springs are respectively fixedly connected to the side walls of the two fixed plates.

[0007] Preferably, the cutting mechanism includes a punching cutter and a guide component. The punching cutter seat is fixedly connected to the side wall of the stamping frame, and the guide component seat is fixedly connected to the side wall of the support frame. The guide groove inside the guide component corresponds to the guide groove inside the lower mold.

[0008] Preferably, the lower mold is provided with electromagnetic clamps at both ends along the guide groove direction. The electromagnetic clamps are used to clamp and fix the material in the lower mold. A baffle is provided on the side wall of the electromagnetic clamp away from the guide component. The baffle and the electromagnetic clamp are slidably connected along the direction perpendicular to the guide groove.

[0009] Preferably, the interior of the baffle and the electromagnetic clamp connected thereto are slidably connected to the lower mold along the guide groove direction. The lower end of the baffle is slidably connected to the interior of the adjusting plate. The center of the arc portion of the adjusting plate is provided with a through hole and sleeved on the outside of the rotating shaft. The left and right parts of the adjusting plate are respectively slidably connected to the outer wall of the slide rod. A lead screw is threaded through and connected to the middle of the adjusting plate. One end of the lead screw passes through the middle of a drive box and is fixedly connected to the output end of a stepper motor. The base end of the stepper motor is fixedly connected to the side wall of the gantry support column. The other end of the lead screw passes through the middle of another drive box and is rotatably connected to the side wall of the support frame.

[0010] Preferably, both ends of the upper mold are slidably connected to the outer wall of the upper guide column of the support frame.

[0011] Preferably, the upper wall of the lower mold guide groove and the lower wall of the stamping head seat are both provided with stamping patterns.

[0012] Preferably, the process flow of the fixed-length punching device for photovoltaic bracket processing includes the following steps:

[0013] Step 1: According to the required length of the photovoltaic bracket, control the stepper motor to drive the lead screw to rotate, which in turn drives the adjustment plate to move. The adjustment plate drives the baffle to move to the preset position. When the C-shaped square tube used to make the photovoltaic bracket is inserted into the guide component and continues to be fitted into the guide groove of the lower mold, it will be blocked when it contacts the baffle, thus realizing the length adjustment of the photovoltaic bracket.

[0014] Step 2: The hydraulic cylinder drives the stamping frame to descend, which in turn causes the blanking cutter to descend and blank the C-shaped square tube. With the help of the baffle, the photovoltaic bracket is cut to the same length.

[0015] Step 3: After the C-shaped square tube is punched and cut, the hydraulic cylinder drives the punching frame to rise, which in turn raises the fixed plate that is fixedly connected to the punching frame, thereby driving the pawl to rise. Under the elastic action of the flat spring, the pawl always keeps in contact with the ratchet, which in turn drives the ratchet to rotate, causing the shaft to rotate and drive the sprocket to rotate, which in turn drives the chain to move, and finally the lower die moves with the chain to the next punching station.

[0016] Step 4: Simultaneously, when the hydraulic cylinder drives the stamping frame to descend, it also drives the stamping head to punch holes in the C-shaped square tube that has been cut. Due to the limiting of another pawl, the descent of the stamping frame will not cause the ratchet to rotate, thus causing the ratchet to rotate only in one direction. This causes the lower die to move in one direction in a cyclical manner, thereby realizing assembly line production.

[0017] This invention provides a fixed-length punching device for processing photovoltaic brackets. It has the following advantages:

[0018] This invention uses a hydraulic cylinder to lift and drive a punch head to punch holes in a square tube. Combined with a cutting mechanism and a ratchet mechanism, the device can simultaneously punch holes, cut the square tube, and move the workstation. This achieves the effect of simultaneous processing of all processes in the photovoltaic bracket manufacturing process. Furthermore, the device enables assembly line production of standard photovoltaic bracket parts, avoiding the problem of large product size errors in traditional production methods. It improves production efficiency while achieving accurate production of standard parts.

[0019] This invention uses a stepper motor to move an adjusting plate, making the position of the baffle adjustable. This allows for the adaptation to different lengths while maintaining the fixed length of the tube, thus improving the applicability of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention from a frontal angle;

[0021] Figure 2 This is a rear-view perspective view of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a three-dimensional schematic diagram of the front view of the present invention from another angle;

[0024] Figure 5 This is a schematic diagram of the internal structure of the drive box in this invention;

[0025] Figure 6 This is a schematic diagram of the ratchet mechanism in this invention;

[0026] Figure 7 This is a side view of the lower mold portion in this invention;

[0027] Figure 8 This is a schematic diagram of the structure of the adjustment plate in this invention.

[0028] The components are as follows: 1. Base; 2. Support frame; 3. Gantry frame; 4. Hydraulic cylinder; 5. Stamping frame; 6. Drive box; 7. Adjusting plate; 8. Lower die; 9. Blanking cutter; 10. Guide component; 11. Fixed rod; 12. Sprocket; 13. Chain; 14. Shaft; 15. Ratchet; 16. Fixed plate; 17. Flat spring; 18. Limit block; 19. Pawl; 20. Stepper motor; 21. Lead screw; 22. Slide rod; 23. Baffle; 24. Upper die; 25. Stamping head; 26. Electromagnetic clamp. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figure 1-7 As shown, this embodiment of the invention provides a fixed-length punching device for photovoltaic bracket processing, including a base 1. A support frame 2 and a gantry frame 3 are fixedly connected to the upper wall of the base 1. The support frame 2 is located inside the gantry frame 3. A drive box 6 is fixedly connected to opposite sides of the support frame 2. The drive boxes 6 are fixedly connected to each other by a sliding rod 22. A rotating shaft 14 is rotatably connected through the center of the arc portion of each drive box 6. Both ends of the rotating shaft 14 are fixedly connected to sprockets 12. The teeth of the sprockets 12 are engaged with a chain 13. The chain 13 is fixedly connected to a lower mold 8 by a fixing rod 11. The outer wall of rod 11 is slidably connected to the side wall of drive box 6. The lower wall of the lower mold 8 located above the support frame 2 is in contact with the upper wall of the support frame 2. The upper crossbeam of the gantry 3 is fixedly connected to a hydraulic cylinder 4. The output end of the hydraulic cylinder 4 is fixedly connected to a stamping frame 5. The lower end of the stamping frame 5 is fixedly connected to an upper mold 24 corresponding to the lower mold 8. The lower wall of the upper mold 24 is fixedly connected to a stamping head 25. A ratchet mechanism is provided between one side of the stamping frame 5 and the rotating shaft 14. The ratchet mechanism is configured to drive the rotating shaft 14 to rotate by lifting the stamping frame 5. A cutting mechanism is provided on the other side of the stamping frame 5.

[0032] Hydraulic cylinder 4 drives stamping frame 5 to descend, simultaneously driving stamping head 25 to punch holes in the square tube and cutting mechanism to cut the square tube. Next, hydraulic cylinder 4 drives stamping frame 5 to rise, driving sprocket 12 to rotate through ratchet mechanism, thereby moving lower die 8 to the next station by chain 13. The entire production process can be completed by the lifting and lowering of hydraulic cylinder 4. It should be noted that, in order to cooperate with assembly line production, the spacing of multiple stamping heads 25 in upper die 24 of each station can be staggered in advance according to the length and hole requirements of square tube. That is, while ensuring a large hole spacing, the number of holes punched at each station can be increased as much as possible. This allows multiple holes to be punched at one station at the same time, and avoids damage when punching multiple holes at the same time due to the close distance between holes.

[0033] Furthermore, the drive box 6 is configured to consist of two symmetrical waist-shaped covers, which are also fixedly connected by slide rods 22. This allows the two side walls of the fixing rod 11 to slide and connect to the inside of the waist-shaped covers, which not only protects the internal sprockets 12 and chains 13, but also improves the stability of the fixing rod 11.

[0034] The hydraulic cylinder 4 lifts and drives the punch head 25 to punch holes in the square tube. In conjunction with the cutting mechanism and ratchet mechanism, the device can cut the square tube and move the work station at the same time as punching. This achieves the effect of all processes in the photovoltaic bracket processing being carried out simultaneously. Furthermore, the device enables the assembly line production of standard photovoltaic bracket parts, avoiding the problem of large product size errors in traditional production methods. While achieving the production of standard parts with accurate dimensions, it also improves production efficiency.

[0035] The ratchet mechanism includes a ratchet 15 and a fixed plate 16. The ratchet 15 is fixedly connected to one end of the rotating shaft 14 in the middle. One end of the fixed plate 16 is fixedly connected to the side wall of the stamping frame 5, and the other end of the fixed plate 16 is fixedly connected to the upper wall of the base 1. The other end of the fixed plate 16 is fixedly connected to a limit block 18. A pawl 19 is slidably connected inside the limit block 18. The opposite end of the pawl 19 contacts the tooth end of the ratchet 15, and the opposite end of the pawl 19 contacts the flat spring 17. A part of the side wall of the flat spring 17 is fixedly connected to the side wall of the fixed plate 16.

[0036] The hydraulic cylinder 4 drives the stamping frame 5 to rise, causing the fixed plate 16, which is fixedly connected to the stamping frame 5, to rise. This, in turn, causes the pawl 19 to rise. Under the elastic action of the flat spring 17, the pawl 19 always maintains contact with the ratchet 15, which in turn causes the ratchet 15 to rotate. This causes the rotating shaft 14 to rotate, which in turn causes the sprocket 12 to rotate, which in turn causes the chain 13 to move. Finally, the lower die 8 moves with the chain 13 to the next punching station, thus realizing the linkage between the hydraulic cylinder 4 and the station movement.

[0037] The cutting mechanism includes a punching cutter 9 and a guide component 10. The punching cutter 9 is fixedly connected to the side wall of the stamping frame 5, and the guide component 10 is fixedly connected to the side wall of the support frame 2. The guide groove inside the guide component 10 corresponds to the guide groove inside the lower mold 8.

[0038] The blanking cutter 9 cuts the square tube under the drive of the hydraulic cylinder 4. The guide component 10 is used for positioning the square tube when it is fed, ensuring that the square tube is accurately inserted into the guide groove of the lower mold 8.

[0039] Electromagnetic clamps 26 are provided at both ends of the lower mold 8 along the guide groove. The electromagnetic clamps 26 are used to clamp and fix the material in the lower mold 8. A baffle 23 is provided on the side wall of the electromagnetic clamp 26 away from the guide component 10. The connection between the baffle 23 and the electromagnetic clamp 26 is slidably connected along the direction perpendicular to the guide groove.

[0040] The electromagnetic clamp 26 is used to firmly hold the square tube, which facilitates subsequent punching. At the same time, the baffle 23 is used to cut the square tube to a fixed length.

[0041] Both ends of the upper mold 24 are slidably connected to the outer wall of the upper guide column of the support frame 2.

[0042] By using the guide column outer wall provided at the upper end of the support frame 2, the two ends of the upper die 24 can slide up and down along the guide column, which improves the stability of the punching and blanking process.

[0043] The upper wall of the guide groove of the lower die 8 and the lower wall of the stamping head 25 are both provided with stamping patterns.

[0044] By setting the stamping pattern, anti-slip texture is formed around the holes as the square tube is punched, which increases the friction between the photovoltaic brackets during installation, thereby improving the stability of the photovoltaic brackets.

[0045] Example 2:

[0046] like Figure 8 As shown, based on the above embodiments, this embodiment further optimizes Embodiment 1:

[0047] The interior of the baffle 23 and the electromagnetic clamp 26 connected to it are slidably connected to the lower mold 8 along the guide groove. The lower end of the baffle 23 is slidably connected to the interior of the adjusting plate 7. The center of the arc portion of the adjusting plate 7 is provided with a through hole and is sleeved on the outside of the rotating shaft 14. The left and right parts of the adjusting plate 7 are respectively slidably connected to the outer wall of the slide rod 22. The middle part of the adjusting plate 7 is threadedly connected to the lead screw 21. One end of the lead screw 21 passes through the middle of a drive box 6 and is fixedly connected to the output end of the stepper motor 20. The seat end of the stepper motor 20 is fixedly connected to the side wall of the support column of the gantry frame 3. The other end of the lead screw 21 passes through the middle of another drive box 6 and is rotatably connected to the side wall of the support frame 2.

[0048] According to the required length of the photovoltaic bracket, the stepper motor 20 drives the lead screw 21 to rotate, which in turn drives the adjustment plate 7 to move. The adjustment plate 7 drives the baffle 23 to move to the preset position. When the C-shaped square tube used to make the photovoltaic bracket is inserted into the guide component 10 and continues to be fitted into the guide groove of the lower mold 8, it is blocked when it contacts the baffle 23.

[0049] The stepper motor 20 drives the adjustment plate 7 to move, making the position of the baffle 23 adjustable. This allows for the adaptation to different lengths while maintaining the fixed length of the tube, thus improving the applicability of the device.

[0050] Implementation Three:

[0051] Based on the above embodiments, this embodiment provides a process flow for a fixed-length punching device for photovoltaic bracket processing, including the following steps:

[0052] Step 1: According to the required length of the photovoltaic bracket, control the stepper motor 20 to drive the lead screw 21 to rotate, which in turn drives the adjustment plate 7 to move. The adjustment plate 7 drives the baffle 23 to move to the preset position. When the C-shaped square tube used to make the photovoltaic bracket is inserted into the guide component 10 and continues to be fitted into the guide groove of the lower mold 8, it will be blocked when it contacts the baffle 23, thereby realizing the length adjustment of the photovoltaic bracket.

[0053] Step 2: The hydraulic cylinder 4 drives the stamping frame 5 to descend, which in turn causes the blanking cutter 9 to descend and blank the C-shaped square tube. With the cooperation of the baffle 23, the equal length cutting of the photovoltaic bracket is achieved.

[0054] Step 3: After the C-shaped square tube is punched and cut, the hydraulic cylinder 4 drives the punching frame 5 to rise, which in turn raises the fixed plate 16 that is fixedly connected to the punching frame 5, thereby driving the pawl 19 to rise. Under the elastic action of the flat spring 17, the pawl 19 always keeps in contact with the ratchet 15, thereby driving the ratchet 15 to rotate, causing the rotating shaft 14 to rotate and driving the sprocket 12 to rotate, thereby driving the chain 13 to move, and finally causing the lower die 8 to move with the chain 13 to the next punching station.

[0055] Step 4: At the same time, when the hydraulic cylinder 4 drives the stamping frame 5 to descend, it also drives the stamping head 25 to punch holes in the C-shaped square tube that has been cut. Due to the limiting of another pawl 19, the descent of the stamping frame 5 will not cause the ratchet 15 to rotate, so the ratchet 15 will only rotate in one direction, causing the lower mold 8 to move in one direction in a cyclical manner, thus realizing assembly line production.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A length cutting and punching device for photovoltaic support processing, comprising a base (1), characterized in that: The upper wall of the base (1) is fixedly connected with a support frame (2) and a gantry (3), the support frame (2) is located on the inner side of the gantry (3), the opposite sides of the support frame (2) are fixedly connected with drive boxes (6) respectively, the drive boxes (6) are fixedly connected through slide rods (22), the center of the arc part of the drive box (6) penetrates and is rotatably connected with a rotating shaft (14), the two ends of the rotating shaft (14) are fixedly connected with sprockets (12), the sprockets (12) are meshingly connected through chains (13), the chains (13) are fixedly connected with a plurality of lower molds (8) through fixing rods (11), the outer wall of the fixing rod (11) is slidably connected with the side wall of the drive box (6), the lower wall of the lower mold (8) located above the support frame (2) is in contact with the upper wall of the support frame (2), the upper end beam of the gantry (3) is fixedly connected with a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) is fixedly connected with a stamping frame (5), the lower end of the stamping frame (5) is fixedly connected with an upper mold (24) corresponding to the lower mold (8), the lower wall of the upper mold (24) is fixedly connected with a stamping head (25), a plurality of stamping heads (25) in the upper mold (24) of each station are distributed in an interlaced manner, a ratchet mechanism is arranged between one side of the stamping frame (5) and the rotating shaft (14), the ratchet mechanism is configured to drive the rotating shaft (14) to rotate by lifting the stamping frame (5), and a cutting mechanism is arranged on the other side of the stamping frame (5); The ratchet mechanism comprises a ratchet wheel (15), the middle part of the ratchet wheel (15) is fixedly connected with the extended end of the rotating shaft (14), the tooth ends on the two sides of the ratchet wheel (15) are respectively provided with pawls (19), the outer walls of the two pawls (19) are respectively slidably connected in the interiors of two limiting blocks (18), the outer walls of the limiting blocks (18) are respectively fixedly connected with fixed plates (16), the seats of the two fixed plates (16) are respectively fixedly connected with the upper wall of the base (1) and the side wall of the stamping frame (5), the opposite ends of the two pawls (19) are respectively in contact with two flat springs (17), and a part of the side walls of the two flat springs (17) are respectively fixedly connected with the side walls of the two fixed plates (16); The cutting mechanism comprises a blanking cutter (9) and a guide part (10), the seat of the blanking cutter (9) is fixedly connected with the side wall of the stamping frame (5), the seat of the guide part (10) is fixedly connected with the side wall of the support frame (2), and the inner guide groove of the guide part (10) corresponds to the inner guide groove of the lower mold (8); The hydraulic cylinder (4) drives the stamping frame (5) to descend, punches holes in the pipe by driving the stamping head (25) at the same time, and cuts the pipe by the cutting mechanism, then the hydraulic cylinder (4) drives the stamping frame (5) to ascend, drives the sprocket (12) to rotate through the ratchet mechanism, and then drives the lower mold (8) to move to the next station through the chain (13), and the whole production process can be completed by lifting the hydraulic cylinder (4). The lower mold (8) is provided with an electromagnetic clamp (26) at both ends along the direction of the guide groove, the electromagnetic clamp (26) is used for clamping and fixing the material in the lower mold (8), the side wall of the electromagnetic clamp (26) away from the guide component (10) is provided with a baffle (23), and the baffle (23) is in sliding connection with the electromagnetic clamp (26) at the connection position. The baffle (23) and the electromagnetic clamp (26) connected therewith are in sliding connection with the lower mold (8) along the direction of the guide groove, the lower end of the baffle (23) is in sliding connection with the inside of the adjusting plate (7), the center of the arc part of the adjusting plate (7) is provided with a through hole and is sleeved on the outside of the rotating shaft (14), the left and right parts of the adjusting plate (7) are respectively penetrated through and in sliding connection with the outer wall of the sliding rod (22), the middle part of the adjusting plate (7) is penetrated through and in threaded connection with the lead screw (21), one end of the lead screw (21) is penetrated through the middle part of one drive box (6) and is fixedly connected with the output end of the stepping motor (20), the seat end of the stepping motor (20) is fixedly connected with the side wall of the support frame (3), and the other end of the lead screw (21) is penetrated through the middle part of the other drive box (6) and is rotatably connected with the side wall of the support frame (2).

2. The length cutting and punching device for photovoltaic support processing according to claim 1, characterized in that: The upper mold (24) is penetrated through and in sliding connection with the outer wall of the guide column at the upper end of the support frame (2).

3. The length cutting and punching device for photovoltaic support machining according to claim 1, characterized in that: The upper wall of the guide groove of the lower mold (8) and the lower wall of the seat end of the stamping head (25) are provided with stamping lines.

4. The length cutting and punching device for photovoltaic support processing according to any one of claims 1-3, characterized in that: The process flow of the fixed-length punching device for photovoltaic support processing includes the following steps: Step one, according to the length of the required photovoltaic support, the stepping motor (20) drives the lead screw (21) to rotate, thereby driving the adjusting plate (7) to move, the adjusting plate (7) drives the baffle (23) to move to the preset position, when the C-shaped square tube for making the photovoltaic support is inserted into the guide component (10) and continues to be sleeved into the guide groove of the lower mold (8), when it contacts the baffle (23), it is blocked, thereby realizing the length adjustment of the photovoltaic support; Step two, the hydraulic cylinder (4) drives the stamping frame (5) to descend, thereby making the blanking cutter (9) descend to punch the C-shaped square tube, under the cooperation of the baffle (23), the equal-length cutting of the photovoltaic support is realized. Step three, after the C type square tube is cut off, the hydraulic cylinder (4) drives the stamping frame (5) to rise, the fixed plate (16) fixedly connected with the stamping frame (5) rises, and then drives the pawl (19) to rise, under the elastic action of the flat spring (17), the pawl (19) always keeps contact with the ratchet wheel (15), and then drives the ratchet wheel (15) to rotate, makes the rotating shaft (14) rotate and drives the sprocket (12) to rotate, and then drives the chain (13) to move, finally makes the lower die (8) move to the next punching station with the chain (13); Step four, when the hydraulic cylinder (4) drives the stamping frame (5) to descend, the stamping head (25) also drives the C type square tube cut off to punch, and because the other pawl (19) is limited, the stamping frame (5) will not rotate when descending, and then the ratchet wheel (15) will only rotate in one direction, so that the lower die (8) moves in one direction and circulates in turn, and then realizes the assembly line production.

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