A CNC machining equipment for photovoltaic frames with adaptive profiles

Abstract

This application relates to the field of CNC machining equipment technology, and more particularly to a CNC machining equipment for photovoltaic frames using adaptive profiles. The technical solution includes a milling machine and a bevel support component mounted on a cutting platform. The bevel support component consists of a central support member and two side edge reinforcement members, all three equipped with clamps for holding the profile. The central support member has a rotating assembly for driving the profile to rotate and a hydraulic first limiting mechanism; the edge reinforcement members include an adjustable support plate, a guide assembly, and a hydraulic second limiting assembly. Through the above structure, this invention enables the milling machine to complete the machining of one bevel edge after a single clamping of the profile, and then complete the machining of the other end by rotating the entire profile 180 degrees. This method effectively solves the problems of low efficiency and accuracy deviation caused by secondary clamping in the prior art, while possessing the advantages of good rigidity, strong adaptability, and low cost, making it particularly suitable for the efficient and precise machining of photovoltaic frame profiles.

Description

Technical Field

[0001] This invention relates to the field of CNC machining equipment technology, and in particular to a CNC machining equipment for photovoltaic frames of adaptive profiles. Background Technology

[0002] In the manufacturing process of photovoltaic modules, aluminum alloy frames play an important role in protecting the glass edges, strengthening the overall structure of the module, and facilitating installation and grounding. To connect the four profiles into a stable rectangular frame, the industry often uses a corner splicing process. The core of this process is to process high-precision 45-degree bevels at both ends of each profile to allow for pairwise mating.

[0003] Currently, the mainstream method for machining such 45-degree bevels is to use a CNC milling machine or machining center equipped with a swing spindle head. During machining, the spindle head rotates to 45 degrees, and then a disc milling cutter is used to mill the end face of the horizontally clamped profile. However, this technical solution has a significant efficiency bottleneck: after machining the bevel at one end of the profile, the profile must be removed from the fixture, manually turned around, or repositioned by a robot, and then re-clamped before machining the other end. This secondary clamping process not only increases the total machining time of a single profile, limiting production capacity, but also inevitably introduces repeated positioning errors, making it difficult to guarantee the relative positional accuracy of the bevels at both ends of the profile, thus affecting the tightness and rectangularity of the final frame assembly.

[0004] In addition, to achieve this kind of processing, the equipment often needs to be equipped with a complex five-axis linkage system, which leads to high equipment costs and places higher demands on programming, operation and maintenance. Summary of the Invention

[0005] The purpose of this application is to address the problems existing in the background technology by proposing a CNC machining equipment for photovoltaic frames of adaptive profiles that can significantly improve production efficiency and reduce equipment complexity and cost while ensuring machining accuracy.

[0006] The technical solution of this application: A CNC machining equipment for photovoltaic frames of adaptive profiles, comprising a profile, and a milling machine for machining the profile, the milling machine comprising a cutting platform, wherein a bevel support component is mounted on the cutting platform, the bevel support component comprising:

[0007] A central support and edge reinforcements are mounted on the cutting platform, and clamps for holding the profile are mounted on both the central support and the edge reinforcements.

[0008] The central support includes a rotating assembly that drives the profile to rotate and a first limiting mechanism that controls the rotation state of the rotating assembly. The rotation state of the rotating assembly includes two states: allowed rotation and unable to rotate.

[0009] The edge reinforcement includes a support plate mounted on the cutting platform and fixedly connected to the fixture, a guide assembly for controlling the circular motion of the support plate and controlling its rotation radius, and a second limiting assembly for controlling the motion state of the support plate. The motion state of the support plate includes two types: movable and immovable.

[0010] Optionally, the rotating assembly includes a support fixedly mounted on the cutting platform and a rotating shaft rotatably mounted on the support. A motor is fixedly mounted on the cutting platform, and the output shaft of the motor is coaxially and fixedly connected to the rotating shaft.

[0011] Optionally, the first limiting mechanism includes a first limiting cylinder rotatably mounted on the cutting platform via a first support base, and a first sealing block slidably and sealingly mounted inside the first limiting cylinder. Both ends of the first sealing block are fixedly mounted with first connecting rods. The first connecting rods pass through one side of the first limiting cylinder and extend to the outside of the first limiting cylinder. An eccentric wheel is fixedly mounted on the rotating shaft, and one of the first connecting rods is rotatably connected to the eccentric wheel.

[0012] Optionally, the two ends of the first limiting cylinder are connected through a first conveying pipe, and a first electrically controlled valve is fixedly installed on the first conveying pipe. The first limiting cylinder, the first conveying pipe, and the first electrically controlled valve are all filled with hydraulic medium.

[0013] Optionally, sealing rings are fixedly installed in the middle of the first sealing block and at both ends of the first limiting cylinder, and the sealing rings on both sides of the first limiting cylinder cover the first connecting rod.

[0014] Optionally, the support plate includes a plate body, and rollers are rotatably mounted on the bottom of the plate body.

[0015] Optionally, the guide assembly includes a support ring fixedly mounted on the cutting platform, a guide groove disposed within the support ring, at least two sliders slidably mounted within the guide groove, a base plate fixedly mounted on the plurality of sliders, a base plate slidably mounted with a plurality of guide rods and threadedly connected to a lead screw, the guide rods being fixedly connected to the plate body, and the lead screw being rotatably connected to the plate body.

[0016] Optionally, the second limiting assembly includes a second limiting cylinder rotatably mounted on the cutting platform via a second support base, and a second sealing block slidably and sealingly connected inside the second limiting cylinder. The two ends of the second sealing block are fixedly mounted with second connecting rods. The second connecting rods pass through one side of the second limiting cylinder and extend to the outside of the second limiting cylinder, and one of the second connecting rods is rotatably connected to the plate body.

[0017] Optionally, the two ends of the second limiting cylinder are connected through a second conveying pipe, and a second electrically controlled valve is fixedly installed on the second conveying pipe. The second limiting cylinder, the second conveying pipe, and the second electrically controlled valve are all filled with hydraulic medium.

[0018] Optionally, the fixture includes a mounting base fixedly mounted on the rotating shaft and the plate, with push rod motors fixedly mounted at both ends of the mounting base, and a pressure plate fixedly mounted on the output shaft of the push rod motor.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] Through the innovative rotating triangular support design, the profile can be processed at both ends in one clamping, avoiding the time of secondary clamping and turning in the traditional process. The production efficiency is nearly doubled. One clamping fundamentally eliminates the error of repeated positioning and ensures the relative position accuracy of the 45-degree inclined edges at both ends of the profile, thereby ensuring the assembly tightness and rectangularity of the final photovoltaic frame.

[0021] The guide assembly can flexibly adjust the position of the support points on both sides, enabling the equipment to quickly adapt to profiles of different lengths, enhancing the flexibility and versatility of the equipment, reducing changeover costs and time. This solution does not require an expensive five-axis linkage milling machine; high-quality bevel machining can be completed using a conventional three-axis milling machine in conjunction with this equipment, significantly reducing equipment investment and maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a CNC machining equipment;

[0023] Figure 2 Schematic diagram of the inclined side support component Figure 1 ;

[0024] Figure 3 Schematic diagram of the inclined support component Figure 2 ;

[0025] Figure 4 Schematic diagram of the central support component Figure 1 ;

[0026] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0027] Figure 6 Schematic diagram of the central support component Figure 2 ;

[0028] Figure 7 Schematic diagram of the edge reinforcement Figure 1 ;

[0029] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0030] Figure 9 Schematic diagram of the edge reinforcement Figure 2 ;

[0031] Figure 10 This is a structural schematic diagram of the profile.

[0032] Reference numerals: 1. Profile; 2. Milling machine; 21. Cutting platform; 3. Inclined edge support component; 301. Central support component; 31. Rotating assembly; 311. Support; 312. Rotating shaft; 313. Motor; 32. First limiting mechanism; 321. First support base; 322. First limiting cylinder; 323. First sealing block; 324. First connecting rod; 325. First conveying pipe; 326. First electrically controlled valve; 327. Eccentric wheel; 302. Edge reinforcement component; 33. Support plate component 331. Plate; 332. Roller; 34. Guide assembly; 341. Support ring; 342. Guide groove; 343. Slider; 344. Base plate; 345. Guide rod; 346. Lead screw; 35. Second limiting assembly; 351. Second support seat; 352. Second limiting cylinder; 353. Second sealing block; 354. Second connecting rod; 355. Second conveying pipe; 356. Second electrically controlled valve; 4. Clamp; 411. Mounting seat; 412. Pressure plate; 413. Push rod motor. Detailed Implementation

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] Examples, such as Figures 1 to 3 and Figure 10 As shown, the present application proposes a CNC machining equipment for photovoltaic frames of adaptive profiles, including a profile 1 and a milling machine 2 for machining the profile 1. The milling machine 2 includes a cutting platform 21, on which a bevel support component 3 is mounted. The bevel support component 3 includes a central support component 301 mounted on the cutting platform 21 and edge reinforcement components 302 located on both sides of the central support component 301. Both the central support component 301 and the edge reinforcement components 302 are equipped with clamps 4 for holding the profile 1. If only a central support component 301 is set in the middle, the central support component 301 will be subjected to a large thrust under the lever action when cutting the profile 1, which may lead to unstable support and reduced cutting accuracy. This problem can be solved by setting edge reinforcement components 302 on both sides.

[0035] Furthermore, the central support 301 provides rotation drive and main support, while the edge reinforcements 302 on both sides provide auxiliary support and follow-up. The three together clamp the profile 1 through the clamp 4 on them, forming a rigid support whole, ensuring that the profile 1 will not vibrate or deform due to milling force during processing, thereby ensuring the processing accuracy and high surface finish of the 45-degree bevel.

[0036] like Figures 4 to 6 and Figure 10 As shown, in this embodiment, the central support 301 includes a rotating component 31 that drives the profile 1 to rotate and a first limiting mechanism 32 that controls the rotation state of the rotating component 31. The rotation state of the rotating component 31 includes two types: allowed rotation and unable to rotate. When processing the profile 1, the profile 1 needs to be fixedly installed on three clamps 4, and the four clamps 4 form a straight line. The angle between the straight line and the spindle movement direction of the milling machine 2 is 45 degrees. When the milling machine 2 completes processing on one side, and the spindle feeds to the other side, the profile 1 rotates around the center, so that the other side of the profile 1 contacts the milling cutter on the spindle of the milling machine 2 at a 45-degree angle. Thus, the processing of both sides of the profile 1 can be completed in a single movement of the spindle of the milling machine 2 in one direction.

[0037] Furthermore, the rotating assembly 31 includes a support 311 fixedly mounted on the cutting platform 21 and a rotating shaft 312 rotatably mounted on the support 311. A motor 313 is fixedly mounted on the cutting platform 21. The output shaft of the motor 313 is coaxially and fixedly connected to the rotating shaft 312. The motor 313 can drive the rotating shaft 312 to rotate. The clamp 4 is fixedly connected to the rotating shaft 312, which can drive the clamp 4 and the profile 1 to rotate.

[0038] Furthermore, the first limiting mechanism 32 includes a first limiting cylinder 322 rotatably mounted on the cutting platform 21 via a first support base 321, and a first sealing block 323 slidably and sealingly mounted inside the first limiting cylinder 322. Both ends of the first sealing block 323 are fixedly mounted with first connecting rods 324. The first connecting rods 324 pass through one side of the first limiting cylinder 322 and extend to the outside of the first limiting cylinder 322. An eccentric wheel 327 is fixedly mounted on the rotating shaft 312. One of the first connecting rods 324 is rotatably connected to the eccentric wheel 327. When the rotating shaft 312 rotates, it will drive the eccentric wheel 327 to rotate. The rotating eccentric wheel 327 will drive the first connecting rod 324 to move, thereby causing the first sealing block 323 to move.

[0039] The first limiting cylinder 322 is connected at both ends by the first conveying pipe 325. The first conveying pipe 325 is fixedly installed with the first electrically controlled valve 326. The first limiting cylinder 322, the first conveying pipe 325 and the first electrically controlled valve 326 are all filled with hydraulic medium, which is a liquid that cannot be compressed during operation. The middle part of the first sealing block 323 and both ends of the first limiting cylinder 322 are fixedly installed with sealing rings. The sealing rings on both sides of the first limiting cylinder 322 cover the first connecting rod 324. The movement of the first sealing block 323 can be controlled by controlling the opening and closing of the first electrically controlled valve 326.

[0040] When rotation is required, the first electrically controlled valve 326 opens, allowing the hydraulic medium to flow in the first delivery pipe 325. The first sealing block 323 can slide within the first limiting cylinder 322, at which point the rotating shaft 312 can rotate freely. When locking is required, the first electrically controlled valve 326 closes, sealing the hydraulic medium in the circuit and forming an incompressible liquid connecting rod. This rigidly connects the first sealing block 323, the first connecting rod 324, and the eccentric wheel 327. Since the eccentric wheel 327 is fixed to the rotating shaft 312, the rotational tendency of the rotating shaft 312 is converted into a huge lateral force on the first sealing block 323. The incompressibility of the hydraulic medium effectively resists this force, thus locking the rotating shaft 312 firmly. The advantages of this locking method are large clamping force, rapid response, and compact structure. It can effectively resist the huge torque generated during milling and ensure the absolute stability of the spindle during machining.

[0041] like Figures 7 to 9 and Figure 10 As shown, in this embodiment, the edge reinforcement 302 includes a support plate 33 mounted on the cutting platform 21 and fixedly connected to the fixture 4, a guide component 34 that controls the circular motion of the support plate 33 and controls its rotation radius, and a second limiting component 35 that controls the motion state of the support plate 33. The motion state of the support plate 33 includes two types: movable and immovable. When the support plate 33 can move, it can move with the rotation of the rotating shaft 312. When cutting, the support plate 33 needs to be fixed and locked.

[0042] Furthermore, the support plate 33 includes a plate body 331, and a roller 332 is rotatably mounted on the bottom of the plate body 331. The plate body 331 is supported by the roller 332, so that the plate body 331 can move on the cutting platform 21.

[0043] Furthermore, the guide assembly 34 includes a support ring 341 fixedly mounted on the cutting platform 21, a guide groove 342 disposed within the support ring 341, at least two sliders 343 slidably mounted within the guide groove 342, and a base plate 344 fixedly mounted on the multiple sliders 343. Multiple guide rods 345 are slidably mounted on the base plate 344 and threadedly connected to a lead screw 346. The guide rods 345 are fixedly connected to the plate 331, and the lead screw 346 is rotatably connected to the plate 331. The design of the guide assembly 34 achieves [the desired effect]. The adaptive adjustment of the edge support point position can be achieved by rotating the lead screw 346, which drives the plate 331 and the clamp 4 on it to move along the guide rod 345, thereby adjusting the distance between it and the central support member 301. This allows the device to be compatible with clamping profiles 1 of different lengths. When the profile length changes, no hardware replacement is required. Only the lead screw 346 on the two side edge reinforcement members 302 needs to be adjusted to ensure that the three support points are always optimally matched with the two ends and the middle of the profile 1, greatly improving the versatility and production efficiency of the device.

[0044] Furthermore, the second limiting component 35 includes a second limiting cylinder 352 rotatably mounted on the cutting platform 21 via a second support base 351, and a second sealing block 353 slidably and sealingly connected inside the second limiting cylinder 352. The two ends of the second sealing block 353 are fixedly mounted with second connecting rods 354. The second connecting rods 354 pass through one side of the second limiting cylinder 352 and extend to the outside of the second limiting cylinder 352. One of the second connecting rods 354 is rotatably connected to the plate 331. When the plate 331 moves, the second sealing block 353 will move through the transmission of the second connecting rod 354, while the second limiting cylinder 352 will rotate.

[0045] The two ends of the second limiting cylinder 352 are connected by the second conveying pipe 355. The second electrically controlled valve 356 is fixedly installed on the second conveying pipe 355. The second limiting cylinder 352, the second conveying pipe 355 and the second electrically controlled valve 356 are all filled with hydraulic medium. The working principle of the second limiting component 35 is similar to that of the first limiting mechanism 32. It also adopts hydraulic locking. When the second electrically controlled valve 356 is open, the support plate 33 can move freely to adapt to the rotation of the profile 1. When the second electrically controlled valve 356 is closed, the support plate 33 is rigidly locked. This mechanism, in conjunction with the guide component 34, realizes the dual functions of movement and locking. It allows movement when adjusting the position and provides rigid support during processing and rotation, ensuring the absolute stability of the edge support point in the non-adjustment state, thus forming a rigid triangular support system together with the central support component.

[0046] like Figure 6As shown, in this embodiment, the clamp 4 includes a mounting base 411 fixedly mounted on the rotating shaft 312 and the plate 331. Both ends of the mounting base 411 are fixedly mounted with push rod motors 413. A pressure plate 412 is fixedly mounted on the output shaft of the push rod motor 413. The clamp 4 uses the push rod motor 413 to drive the pressure plate 412, thereby realizing the automated and rapid clamping of the profile 1. This can make the clamping force uniform and controllable. Moreover, through program control, it can be linked with the entire processing flow to realize the automation of clamping and loosening, further reducing manual intervention and improving the automation level of the equipment.

[0047] Working principle: Based on the length of the profile 1 to be processed, the screw 346 of the guide assembly 34 on both sides is rotated to drive the plate 331 to move along the guide rod 345, thereby adjusting the distance between the clamp 4 on the edge reinforcement 302 and the center support 301 to achieve rapid positioning. After positioning, the push rod motors 413 of the three clamps 4 move synchronously to drive the pressure plate 412 to press the profile 1 tightly onto the mounting base 411, completing rigid clamping. At this time, the axis of the profile 1 is at a 45-degree angle to the feed direction of the milling machine spindle 2.

[0048] When processing begins, the first solenoid valve 326 and the second solenoid valve 356 of the first limiting mechanism 32 and the second limiting component 35 are both in the closed state. The hydraulic medium is sealed in the circuit and forms a rigid connection, which locks the rotating shaft 312 of the rotating component 31 and prevents the support plate 33 from moving. The entire inclined support component 3 forms a stable triangular support system. Subsequently, the milling machine 2 starts, and the milling cutter on its spindle moves along the feed direction to perform 45-degree inclined milling on one end of the profile 1.

[0049] After one end is processed, the first solenoid valve 326 and the second solenoid valve 356 open simultaneously to release the hydraulic lock. At this time, the motor 313 starts and drives the rotating shaft 312 to rotate 180 degrees. The rotating shaft 312 drives the profile 1 and the support plates 33 on both sides to rotate synchronously through the clamp 4. After the rotation is in place, the first solenoid valve 326 and the second solenoid valve 356 close again to relock the system. Then, the milling machine 2 can perform 45-degree bevel processing on the other end of the profile 1, thereby achieving precision processing of both ends of the profile 1 in one clamping.

[0050] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A CNC machining equipment for photovoltaic frames using adaptive profiles, comprising a profile (1), characterized in that, It also includes a milling machine (2) for processing profiles (1), the milling machine (2) including a cutting platform (21) on which a bevel support member (3) is mounted, the bevel support member (3) including: A central support (301) and an edge reinforcement (302) are installed on the cutting platform (21). Both the central support (301) and the edge reinforcement (302) are equipped with clamps (4) for holding the profile (1). The central support (301) includes a rotating component (31) for driving the profile (1) to rotate and a first limiting mechanism (32) for controlling the rotation state of the rotating component (31). The rotation state of the rotating component (31) includes two types: allowed to rotate and unable to rotate. The edge reinforcement (302) includes a support plate (33) mounted on the cutting platform (21) and fixedly connected to the fixture (4), a guide assembly (34) for controlling the circular motion of the support plate (33) and controlling its rotation radius, and a second limiting assembly (35) for controlling the motion state of the support plate (33). The motion state of the support plate (33) includes two types: movable and immovable. The rotating assembly (31) includes a support (311) fixedly mounted on the cutting platform (21) and a rotating shaft (312) rotatably mounted on the support (311). A motor (313) is fixedly mounted on the cutting platform (21), and the output shaft of the motor (313) is coaxially and fixedly connected to the rotating shaft (312). The support plate (33) includes a plate body (331), and a roller (332) is rotatably mounted on the bottom of the plate body (331). The guide assembly (34) includes a support ring (341) fixedly mounted on the cutting platform (21), a guide groove (342) provided in the support ring (341), at least two sliders (343) slidably mounted in the guide groove (342), and a base plate (344) fixedly mounted on the plurality of sliders (343). The base plate (344) has a plurality of guide rods (345) slidably mounted on it and a lead screw (346) threadedly connected to it. The guide rods (345) are fixedly connected to the plate body (331), and the lead screw (346) is rotatably connected to the plate body (331).

2. The CNC machining equipment for photovoltaic frames of adaptive profiles according to claim 1, characterized in that, The first limiting mechanism (32) includes a first limiting cylinder (322) rotatably mounted on the cutting platform (21) via a first support base (321) and a first sealing block (323) slidably and sealingly mounted inside the first limiting cylinder (322). Both ends of the first sealing block (323) are fixedly mounted with a first connecting rod (324). The first connecting rod (324) passes through one side of the first limiting cylinder (322) and extends to the outside of the first limiting cylinder (322). An eccentric wheel (327) is fixedly mounted on the rotating shaft (312), and one of the first connecting rods (324) is rotatably connected to the eccentric wheel (327).

3. The CNC machining equipment for photovoltaic frames of adaptive profiles according to claim 2, characterized in that, The two ends of the first limiting cylinder (322) are connected through the first conveying pipe (325). The first electrically controlled valve (326) is fixedly installed on the first conveying pipe (325). The first limiting cylinder (322), the first conveying pipe (325) and the first electrically controlled valve (326) are all filled with hydraulic medium.

4. The CNC machining equipment for photovoltaic frames of adaptive profiles according to claim 3, characterized in that, Sealing rings are fixedly installed in the middle of the first sealing block (323) and at both ends of the first limiting cylinder (322), and the sealing rings on both sides of the first limiting cylinder (322) cover the first connecting rod (324).

5. The CNC machining equipment for photovoltaic frames of adaptive profiles according to claim 4, characterized in that, The second limiting assembly (35) includes a second limiting cylinder (352) rotatably mounted on the cutting platform (21) via a second support base (351), and a second sealing block (353) slidably and sealingly connected inside the second limiting cylinder (352). The two ends of the second sealing block (353) are fixedly mounted with second connecting rods (354). The second connecting rods (354) pass through one side of the second limiting cylinder (352) and extend to the outside of the second limiting cylinder (352). One of the second connecting rods (354) is rotatably connected to the plate body (331).

6. The CNC machining equipment for photovoltaic frames of adaptive profiles according to claim 5, characterized in that, The two ends of the second limiting cylinder (352) are connected through the second conveying pipe (355). The second electrically controlled valve (356) is fixedly installed on the second conveying pipe (355). The second limiting cylinder (352), the second conveying pipe (355), and the second electrically controlled valve (356) are all filled with hydraulic medium.

7. The CNC machining equipment for photovoltaic frames of adaptive profiles according to claim 6, characterized in that, The clamp (4) includes a mounting base (411) fixedly mounted on the rotating shaft (312) and the plate (331). A push rod motor (413) is fixedly mounted on both ends of the mounting base (411), and a pressure plate (412) is fixedly mounted on the output shaft of the push rod motor (413).

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