An extrusion die for an aluminum frame of a photovoltaic module

Abstract

The present application discloses an extrusion die for an aluminum frame of a photovoltaic module, and relates to the field of extrusion dies, which includes a concave die and a convex die, wherein the concave die is provided with a positioning hole, and the convex die is provided with a positioning pin that is plugged and matched with the positioning hole, and the concave die is located at the opening of the positioning hole, and a plurality of and at least three abutment rods are arranged in a circumferential array, wherein the abutment rods are rotatably connected at the opening of the positioning hole, and all concave dies are provided with a synchronization member that enables all abutment rods to rotate synchronously; the abutment rods are composed of a rotating pin, a rigid rod, a flexible rod, and a plurality of abutment blocks sleeved on the flexible rods, wherein the rotating pin is rotatably connected at the opening of the positioning hole through a torsion spring, and the end of the rigid rod is fixedly connected to the rotating pin, and a fixed block is also fixedly connected to the rotating pin, and the flexible rod is arranged on the fixed block, and an obtuse angle is formed between the rigid rod and the flexible rod, and adjacent abutment blocks are plugged and matched. The present application helps to improve the positioning accuracy of the concave die and the convex die and is easy to disassemble.

Description

Technical Field

[0001] The present application relates to the field of extrusion dies, and in particular to an extrusion die for an aluminum frame of a photovoltaic module. Background Art

[0002] The extrusion die is used for extrusion molding of aluminum frames. The extrusion die usually includes a concave die and a convex die. The concave die is provided with a shape that matches the shape of the aluminum frame, and the convex die is provided with multiple diversion holes, and adjacent diversion holes are connected by diversion bridges. The convex die is provided with a positioning pin, and the concave die is provided with a positioning hole. The connection between the convex die and the concave die is achieved by plugging and positioning the positioning pin and the positioning hole, and then the extrusion operation can be performed through the die.

[0003] There are two ways to connect the locating pin and the locating hole. One is a clearance fit. In the case of a clearance fit, there will be a gap between the locating pin and the locating hole, resulting in poor positioning accuracy. If there is a deviation between the die and the punch, the size and shape of the aluminum frame will change, affecting subsequent use. The second is an interference fit. In this case, the positioning accuracy of the locating pin and the locating hole is high, but it is not convenient for the disassembly and assembly of the die and the punch. The extrusion die is a valuable and high-precision component on the extrusion production line. Since the die will be affected by various factors during use, it is inevitable that it will be contaminated and worn out after long-term use. It needs to be frequently disassembled for maintenance, and the interference fit makes the die and the punch difficult to disassemble, and it is not applicable. Therefore, it is urgent to invent an extrusion die with high positioning accuracy and easy disassembly. Summary of the invention

[0004] In order to improve positioning accuracy and facilitate disassembly, the present application provides an extrusion die for an aluminum frame of a photovoltaic module.

[0005] The extrusion die of the aluminum frame of a photovoltaic module provided in this application adopts the following technical solution:

[0006] An extrusion die for an aluminum frame of a photovoltaic component comprises a concave die and a convex die, wherein the concave die is provided with a positioning hole, the convex die is provided with a positioning pin that is plugged and matched with the positioning hole, the concave die is located at the opening of the positioning hole and has a plurality of and at least three abutment rods in a circumferential array, the abutment rods are rotatably connected to the opening of the positioning hole, and all the concave dies are provided with a synchronizing member that enables all the abutment rods to rotate synchronously; the abutment rods are composed of a rotating pin, a rigid rod, a flexible rod and a plurality of abutment blocks sleeved on the flexible rods, the rotating pin is rotatably connected to the opening of the positioning hole through a torsion spring, the end of the rigid rod is fixedly connected to the rotating pin, the rotating pin is also fixedly connected to a fixed block, the flexible rod is arranged on the fixed block, an obtuse angle is formed between the rigid rod and the flexible rod, and adjacent abutment blocks are plugged and matched; in an initial state, the rigid rod is inclined and inclined toward the bottom wall direction of the positioning hole, the flexible rod is in a vertical state, and an avoidance opening for the positioning pin to pass through is formed between all the flexible rods.

[0007] By adopting the above technical scheme, when the concave mold and the punch are installed, the locating pin is plugged into the locating hole, the locating pin passes through the avoidance opening into the locating hole, and contacts with the rigid rod. At this time, under the action of the locating pin on the rigid rod, the rigid rod rotates toward the inner wall direction of the locating hole to avoid the movement of the locating pin, and the end of the rigid rod will always abut against the side wall of the locating pin. Moreover, because multiple rigid rods rotate synchronously, when the rigid rod abuts against the locating pin, the axis of the locating pin and the locating hole can be made to correspond, thereby ensuring the positioning accuracy of the locating pin and the locating hole. Moreover, when the locating pin drives the rigid rod to rotate, the fixed block drives the flexible rod to rotate under the drive of the rotating pin. Because the flexible rod is in a vertical state in the initial state, under the action of gravity, all the abutment blocks are plugged in and matched, which will prevent the flexible rod from bending. After the flexible rod rotates, the abutment The block is tightly pressed against the outer wall of the locating pin, thereby ensuring that, after the locating pin and the locating hole are fully inserted, the locating pin is positioned and tightly pressed under the action of the rigid rod and the abutment block, thereby ensuring the positioning accuracy of the locating pin and the locating hole, that is, the positioning accuracy of the die and the punch is improved, and during the insertion process of the locating pin and the locating hole, the abutment blocks will not disengage; when the die and the punch are disassembled, the locating pin gradually disengages from the locating hole, and when the locating pin moves, the friction between the locating pin and the abutment block will drive the abutment block to move upward, even if the adjacent abutment blocks are disengaged, and when the adjacent abutment blocks are disengaged, the flexible rod will bend at the same time as the abutment block is disengaged, that is, the abutment force on the locating pin at the flexible rod will decrease, thereby facilitating the rapid disengagement of the locating pin and the locating hole, even if the die and the punch are easily disassembled.

[0008] Preferably, adjacent abutment blocks are connected via abutment springs, and the abutment springs are sleeved on the flexible rod.

[0009] By adopting the above technical scheme, in the initial state, under the action of the abutment spring, the adjacent abutment blocks are in a disengaged state. When the locating pin is plugged into the locating hole, the locating pin drives the rigid rod to rotate, and the rigid rod drives the flexible rod to rotate, and the abutment block on the uppermost side abuts against the locating pin. In the process of the locating pin descending, the locating pin exerts a downward force on the abutment block, causing the abutment block to slide on the flexible rod and cause the adjacent abutment blocks to be plugged in. However, in the actual processing process, there will be tolerances in the locating pin and the locating hole. When the locating rod is slightly larger and the locating hole is slightly smaller, the gap between the locating pin and the locating hole is the smallest. In this case, in the process of the locating pin and the locating hole being plugged in, when the end of the locating pin is not disengaged from the rigid rod, the abutment block will abut against the outer wall of the locating pin. When the rear locating pin continues to move, the rigid rod will continue to rotate until it disengages from the end of the locating pin and abuts against the side wall of the locating pin. At this time, the locating pin exerts a downward force on the abutment block, and the adjacent abutment blocks will gradually form a plug-in fit. Due to the rotation of the rigid rod, the flexible rod will drive the abutment block to rotate synchronously, so that the abutment block is always in an abutment state with the outer wall of the locating pin; when the locating rod is slightly smaller and the locating hole is slightly larger, when the rigid rod and the abutment block abut against the outer wall of the locating pin, the abutment spring will also be in a compressed state at this time, but the compression amount is smaller than the previous situation. However, the abutment between the abutment block and the locating pin can ensure that the rigid rod and the locating pin are tightly abutted; that is, the abutment spring is used to change the telescopic distance of all the abutment blocks on the flexible rod, which can adapt to the tolerance during pin and hole processing.

[0010] Preferably, a folding spring sheet is provided in the flexible rod, the bent portion of the folding spring sheet abuts against the inner wall of the flexible rod close to the positioning hole, the two ends of the folding spring sheet abut against the end of the flexible rod respectively and form a contact point, and the contact point is located on the side of the flexible rod away from the positioning hole.

[0011] By adopting the above technical solution, a folding spring sheet is arranged in the flexible rod, and the bent portion of the folding spring sheet is located on the side of the flexible rod close to the positioning hole, and the abutment point between the end of the folding spring sheet and the flexible rod is located on the side of the flexible rod away from the positioning hole. Such an arrangement makes it difficult for the end of the flexible rod to bend toward the positioning hole, that is, during the insertion process of the positioning pin and the positioning hole, when the abutment block abuts against the outer wall of the positioning pin, the flexible rod will not bend when the positioning pin exerts a downward force on the abutment block, thereby ensuring the tightening force between the abutment block and the positioning pin.

[0012] Preferably, there are two abutment blocks, namely a fixed abutment block and a movable abutment block. The fixed abutment block is fixedly connected to the fixed block, a plug-in slot is provided on the fixed abutment block, a plug-in block plugged into the plug-in slot is provided on the side of the movable abutment block close to the fixed abutment block, an abutment portion is formed on the side of the movable abutment block away from the fixed abutment block, and a rough surface is formed on the abutment portion of the movable abutment block.

[0013] By adopting the above technical scheme, in practice, due to the small gap between the positioning rod and the positioning pin, two abutment blocks are sufficient, which can reduce the size of the abutment rod at the die; when the movable abutment block is plugged into the fixed abutment block, the two abutment blocks form a whole, and the abutment block cannot rotate at this time, that is, it will not drive the flexible rod to rotate; when the two abutment blocks are separated, the movable abutment block can drive the flexible rod to rotate; that is, when the positioning pin is lowered, the positioning pin drives the movable abutment block to be plugged into the fixed abutment block, and at this time, the two abutment blocks will give a force to the positioning pin, and the positioning pin can be tightened and positioned by cooperating with the rigid rod; when the positioning pin is separated from the positioning hole, the positioning pin gives a force to the movable abutment block to move upward, so that the movable abutment block is separated from the fixed abutment block. After separation, under the force of the positioning pin, the movable abutment block will drive the flexible rod to bend, that is, at this time, the abutment force between the movable abutment block and the positioning pin will be greatly reduced, which is convenient for the separation of the positioning pin and the positioning hole, that is, it is convenient for the disassembly of the punch and the die.

[0014] Preferably, the plug-in slot is flared, and the shape of the plug-in block matches the shape of the plug-in slot.

[0015] By adopting the above technical solution, the plug-in slot is flared. When the positioning pin drives the movable abutment block to move upward, the movable abutment block moves a small distance, and a gap is formed between the plug-in block and the plug-in slot. At this time, the positioning pin can easily drive the movable abutment block to rotate, causing the flexible rod to bend.

[0016] Preferably, a smooth portion is formed at the end of the rigid rod.

[0017] Preferably, four abutment rods are provided, the synchronizing member is provided as a bevel gear, the die is provided with a mounting groove at the opening of the positioning hole, the mounting grooves are the same in number as the rotating pins and correspond one to one, the rotating pins are rotatably connected in the mounting grooves, the bevel gears are coaxially fixed at both ends of the rotating pins, and the bevel gears at adjacent ends of the rotating pins are meshed with each other.

[0018] By adopting the above technical solution and setting the bevel gear, all the rotating pins can rotate synchronously, that is, all the abutting rods can rotate synchronously, that is, all the rigid rods can move synchronously, so the positioning accuracy of the positioning pins can be guaranteed.

[0019] Preferably, a limiting block is formed at one end of the flexible rod away from the fixed block, and the fixed abutment block and the movable abutment block are both provided with a through groove, the flexible rod passes through the through grooves of the two abutment blocks, and a movable groove is provided on the movable abutment block, the movable groove is connected to the through groove, and the limiting block is located in the movable groove.

[0020] By adopting the above technical solution, the limit block is located in the movable groove. When the two abutment blocks are plugged in, the limit block abuts against the inner wall on the upper side of the movable groove. When the two abutment blocks are separated, the limit block limits the movable abutment block. The maximum moving position of the movable abutment block is when the limit block abuts against the inner wall on the lower side of the movable groove.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. Using the abutment rod, when the locating pin is plugged into the locating hole, the rigid rod abuts against the outer wall of the locating pin, and the abutment blocks are plugged into each other under the action of gravity, and the abutment blocks will also abut against the outer wall of the locating pin. Through the abutment of the two against the locating pin, the positioning and abutment of the locating pin are achieved, thereby ensuring the positioning accuracy of the die and the punch. During disassembly, the locating pin is disengaged from the locating hole, and the locating pin exerts an upward force on the abutment block. At this time, the abutment block slides on the flexible rod. After the two abutment blocks are disengaged, the abutment block can drive the flexible rod to bend under the action of the locating pin, that is, the abutment force on the locating pin is reduced, which facilitates the disassembly of the die and the punch.

[0023] 2. An abutment spring is arranged between the two abutment blocks. By the expansion and contraction of the abutment spring, the distance between the abutment blocks is changed, that is, the overall length of the flexible rod is changed to adapt to the processing deviation of the positioning pin;

[0024] 3. By setting the folding spring piece, it is difficult for the flexible rod to bend in the direction close to the positioning hole. That is, during the insertion process of the positioning pin and the positioning hole, when the abutment block abuts against the outer wall of the positioning pin, when the positioning pin exerts a downward force on the abutment block, the flexible rod will not bend, thereby ensuring the tightening force between the abutment block and the positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present application;

[0026] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0027] Figure 3 This is a schematic cross-sectional structural diagram of the abutment block in the first embodiment of the present application;

[0028] Figure 4 This is a state diagram of the abutment rod and the positioning pin when the positioning pin is plugged into the positioning hole in the first embodiment of the present application;

[0029] Figure 5 This is a state diagram of the abutment rod and the positioning pin when the positioning pin is separated from the positioning hole in the first embodiment of the present application;

[0030] Figure 6 It is a schematic cross-sectional structure diagram of the concave mold in the first embodiment of the present application, mainly illustrating the bevel gear;

[0031] Figure 7 It is a schematic cross-sectional structure diagram of the abutment block in the second embodiment of the present application, mainly illustrating the abutment spring;

[0032] Figure 8 It is a schematic diagram of the cross-sectional structure of the flexible rod in the second embodiment of the present application, mainly illustrating the folding spring piece.

[0033] : 1. die; 11. mounting groove; 12. connecting groove; 2. punch; 21. avoidance groove; 3. positioning hole; 4. positioning pin; 5. abutment rod; 51. rotating pin; 511. fixed block; 52. rigid rod; 521. smooth portion; 53. flexible rod; 54. abutment block; 541. fixed abutment block; 542. movable abutment block; 5421. abutment portion; 6. avoidance opening; 7. plug-in groove; 8. plug-in block; 9. bevel gear; 10. limit block; 20. penetration groove; 30. movable groove; 40. abutment spring; 50. folding spring; 501. bending portion; 502. abutment point. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0035] The embodiment of the present application discloses an extrusion die for an aluminum frame of a photovoltaic module.

[0036] Example 1

[0037] Reference Figure 1 The extrusion die of the aluminum frame of the photovoltaic module includes a die 1 and a punch 2. The die 1 is provided with a positioning hole 3, and the punch 2 is integrally formed with a positioning pin 4. The die 1 is provided with a plurality of mounting grooves 11 at the opening of the positioning hole 3, and at least three, and four are used as an example for explanation in this application. The die 1 is located in the mounting groove 11 and is rotatably provided with an abutment rod 5, and the die 1 is provided with a synchronization member for driving all the abutment rods 5 to rotate synchronously.

[0038] Reference Figure 2 and Figure 3The abutment rod 5 is composed of a rotating pin 51, a rigid rod 52, a flexible rod 53 and a plurality of abutment blocks 54 sleeved on the flexible rod 53. In this application, two abutment blocks 54 are used as an example for explanation. The number of rotating pins 51 is the same as the number of mounting slots 11 and corresponds to each other. The rotating pin 51 is hinged in the mounting slot 11 through a torsion spring. The end of the rigid rod 52 is fixedly connected to the rotating pin 51. A fixed block 511 is also fixedly connected to the rotating pin 51. The flexible rod 53 is fixedly connected to the fixed block 511. There is an obtuse angle between the rigid rod 52 and the flexible rod 53. The two abutment blocks 54 are plugged in and matched. In the initial state, the rigid rod 52 is tilted and tilted toward the bottom wall of the positioning hole 3, and the flexible rod 53 is in a vertical state. A avoidance opening 6 for the positioning pin 4 to pass through is formed between all the flexible rods 53. In practice, the flexible rod 53 can also be tilted away from the axis of the positioning hole 3, as long as it does not affect the initial plugging of the positioning pin 4 with the positioning hole 3. The punch 2 is provided with an escape groove 21 on the side of the positioning pin 4 for escaping the flexible rod 53 and the abutment block 54 .

[0039] When the concave die 1 and the convex die 2 are installed, the locating pin 4 is plugged into the locating hole 3, the locating pin 4 passes through the avoidance opening 6 into the locating hole 3 and contacts the rigid rod 52, the end of the locating pin 4 contacts the rigid rod 52 first, and the end of the rigid rod 52 is provided with a smooth portion 521, which facilitates the relative sliding of the locating pin 4 and the rigid rod 52; then the locating pin 4 continues to move and drives the rigid rod 52 to rotate until the end of the rigid rod 52 abuts against the outer wall of the locating pin 4, and the four rigid rods 52 move synchronously and abut against the locating pin 4, so that the centering accuracy of the locating pin 4 and the locating hole 3 can be guaranteed; refer to Figure 4 When the rigid rod 52 rotates, the fixed block 511 will drive the flexible rod 53 and the abutment block 54 to rotate, and the abutment block 54 will also abut against the outer wall of the positioning pin 4. Because in the initial state, the flexible rod 53 is in a vertical state, the two abutment blocks 54 are plugged together under the action of gravity, that is, after the abutment blocks 54 abut against the outer wall of the positioning pin 4, the two abutment blocks 54 form a whole. At this time, the flexible rod 53 cannot bend and deform, that is, during the descent of the positioning pin 4, the abutment of the rigid rod 52 and the abutment block 54 with the positioning pin 4 can ensure the insertion accuracy of the positioning pin 4 and the positioning hole 3. Figure 5 When the die 1 and the punch 2 are disassembled, the locating pin 4 gradually disengages from the locating hole 3. When the locating pin 4 moves, it will generate an upward friction force on the abutment block 54 and drive the abutment block 542 to move upward. When the two abutment blocks 54 are disengaged, the flexible rod 53 can bend, which can reduce the friction between the abutment block 54 and the locating pin 4, thereby facilitating the detachment of the locating pin 4 from the locating hole 3, thereby facilitating the disassembly of the die 1 and the punch 2.

[0040] The two abutment blocks 54 are respectively a fixed abutment block 541 and a movable abutment block 542. The fixed abutment block 541 is fixedly connected to the fixed block 511, and a plug-in slot 7 is provided on the fixed abutment block 541, and the plug-in slot 7 is in a flared shape. A plug-in block 8 is integrally formed on the side of the movable abutment block 542 close to the fixed abutment block 541, and the plug-in block 8 is adapted to the shape of the plug-in slot 7. An abutment portion 5421 is formed on the side of the movable abutment block 542 away from the fixed abutment block 541, and a rough surface is formed at the abutment portion 5421. When the positioning pin 4 drives the movable abutment block 542 to move upward, the movable abutment block 542 moves a small distance, and a gap is formed between the plug-in block 8 and the plug-in slot 7. At this time, the positioning pin 4 can easily drive the flexible rod 53 to bend through the movable abutment block 542.

[0041] Reference Figure 1 and Figure 6 The synchronizer is set as a bevel gear 9. Four connecting grooves 12 are provided in a square shape in the die 1. Both ends of the rotating pin 51 extend to the ends of the connecting groove 12. Both ends of the rotating pin 51 are coaxially fixed with bevel gears 9. The bevel gears 9 at the ends of adjacent rotating pins 51 mesh with each other. By setting the bevel gear 9, all the rotating pins 51 rotate synchronously, that is, all the abutting rods 5 rotate synchronously, so that the positioning accuracy of the positioning pin 4 can be guaranteed.

[0042] Reference Figure 3 The end of the flexible rod 53 away from the fixed block 511 forms a limit block 10, the fixed abutting block 541 and the movable abutting block 542 are both provided with a penetration groove 20, the penetration groove 20 penetrates the plug-in groove 7, and the penetration groove 20 penetrates the plug-in block 8, the flexible rod 53 passes through the penetration grooves 20 of the two abutting blocks 54, the movable abutting block 542 is provided with a movable groove 30, which is connected with the penetration groove 20, and the limit block 10 is located in the movable groove 30. When the two abutting blocks 54 are plugged and matched, the limit block 10 abuts against the inner wall on the upper side of the movable groove 30, and when the two abutting blocks 54 are separated, the limit block 10 limits the movable abutting block 542, and the maximum moving position of the movable abutting block 542 is when the limit block 10 abuts against the inner wall on the lower side of the movable groove 30.

[0043] The implementation principle of the extrusion die of the aluminum frame of a photovoltaic module in the embodiment of the present application is as follows: when the concave die 1 and the punch 2 are installed, the locating pin 4 is plugged into the locating hole 3 to play a positioning role. When the locating pin 4 enters the locating hole 3, it contacts the rigid rod 52 and drives the rigid rod 52 to rotate until the end of the rigid rod 52 abuts against the outer wall of the locating pin 4. Since the four rigid rods 52 rotate synchronously, the synchronous positioning of the locating pin 4 can be achieved; when the rigid rod 52 rotates and abuts against the outer wall of the locating pin 4, the movable abutment block 542 will also abut against the outer wall of the locating pin 4, and under the movement of the locating pin 4, a downward moving force will be generated on the movable abutment block 542, that is, the movable abutment block 542 and the fixed abutment block 541 are plugged tightly, because the fixed abutment block 541 and the movable abutment block 542 are plugged into a whole The flexible rod 53 will not bend, that is, at this time, the abutment force of the movable abutment block 542 on the locating pin 4 is stable, which can ensure the positioning accuracy after the locating pin 4 is plugged into the locating hole 3 and realize the pre-fixation of the locating pin 4. In practice, after positioning, the die 1 and the punch 2 are also fixed by bolts and nuts to prevent axial displacement; when the die 1 and the punch 2 are disassembled, the locating pin 4 moves outward. At this time, the locating pin 4 generates an upward moving force on the movable abutment block 542. When the plug-in block 8 of the movable abutment block 542 and the plug-in groove 7 are slightly displaced, that is, a gap appears, the locating pin 4 can easily drive the flexible rod 53 to bend through the movable abutment block 542. At this time, the abutment force of the movable abutment block 542 on the locating pin 4 is greatly reduced, which is convenient for the rapid disassembly of the die 1 and the punch 2.

[0044] Example 2

[0045] Reference Figure 7 and Figure 8 The difference between this embodiment and embodiment 1 is that adjacent abutment blocks 54 are connected by abutment springs 40, and the abutment springs 40 are sleeved on the flexible rod 53. One end of the abutment spring 40 is fixedly connected to the through groove 20 of the fixed abutment block 541, and the other end of the abutment spring 40 is fixedly connected to the plug-in block 8 of the movable abutment block 542.

[0046] A folding spring sheet 50 is disposed inside the flexible rod 53, and a bent portion 501 of the folding spring sheet 50 abuts against the inner wall of the flexible rod 53 on the side close to the positioning hole 3. Both ends of the folding spring sheet 50 abut against the ends of the flexible rod 53 and form a contact point 502, which is located on the side of the flexible rod away from the positioning rod. Under the action of the folding spring sheet 50, the end of the flexible rod 53 can bend in a direction away from the positioning hole 3, but it is difficult to bend in a direction close to the positioning hole 3.

[0047] In the initial state, the flexible rod 53 is in a vertical state. Under the action of the abutment spring 40, there is a gap between the fixed abutment block 541 and the movable abutment block 542, that is, it is not in a fully plugged-in state. When the positioning pin 4 drives the rigid rod 52 to rotate, and the rigid rod 52 drives the flexible rod 53 to rotate, the movable abutment block 542 abuts against the positioning pin 4. During the descending process of the positioning pin 4, the positioning pin 4 exerts a downward force on the movable abutment block 542, so that the movable abutment block 542 slides on the flexible rod 53 and gradually connects with the fixed abutment block 541. In practice, there is a processing deviation or tolerance within an allowable range in the processing of the positioning rod and the positioning pin 4. When the positioning rod is slightly larger than the positioning hole 3, the gap between the positioning pin 4 and the positioning hole 3 is the smallest. In this case, during the insertion of the positioning pin 4 and the positioning hole 3, when the end of the positioning pin 4 has not disengaged from the rigid rod 52, the abutment block 54 will abut against the outer wall of the positioning pin 4. Then, when the positioning pin 4 continues to move, the rigid rod 52 will continue to rotate until it disengages from the end of the positioning pin 4 and abuts against the side wall of the positioning pin 4. At this time, under the downward action of the positioning pin 4 on the abutment block 54, the adjacent abutment blocks 54 will gradually form a plug-in fit, and due to the rotation of the rigid rod 52, the flexible rod 53 will drive the abutment block 542 to rotate synchronously, so that the abutment block 54 is always in abutment with the outer wall of the positioning pin 4 while sliding. When the positioning rod is slightly smaller and the positioning hole 3 is slightly larger, the gap between the positioning pin 4 and the positioning hole 3 is the largest. When the rigid rod 52 and the abutment block 54 abut against the outer wall of the positioning pin 4, the abutment spring 40 will also be in a compressed state, but the compression amount is smaller than the previous case. However, the abutment between the abutment block 54 and the positioning pin 4 can ensure that the rigid rod 52 and the positioning pin 4 are tightly abutted; that is, the abutment spring 40 is used to change the telescopic distance of all the abutment blocks 54 on the flexible rod 53, which can adapt to the processing tolerances during pin and hole processing.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An extrusion die for an aluminum frame of a photovoltaic module, characterized in that: The invention comprises a die (1) and a punch (2), wherein the die (1) is provided with a positioning hole (3), and the punch (2) is provided with a positioning pin (4) plugged into and matched with the positioning hole (3). The die (1) is provided with a plurality of and at least three abutment rods (5) in a circumferential array at the opening of the positioning hole (3), wherein the abutment rods (5) are rotatably connected to the opening of the positioning hole (3), and all the die (1) are provided with synchronizing parts for making all the abutment rods (5) rotate synchronously; the abutment rods (5) are composed of a rotating pin (51), a rigid rod (52), a flexible rod (53), and a plurality of abutment blocks (54) sleeved on the flexible rod (53), wherein the rotating pin (51) is provided with a plurality of abutment blocks (54) sleeved on the flexible rod (53). The rigid rod (51) is rotatably connected to the opening of the positioning hole (3) through a torsion spring, the end of the rigid rod (52) is fixedly connected to the rotating pin (51), the rotating pin (51) is also fixedly connected to a fixing block (511), the flexible rod (53) is arranged on the fixing block (511), an obtuse angle is formed between the rigid rod (52) and the flexible rod (53), and adjacent abutment blocks (54) are plugged in and matched; in an initial state, the rigid rod (52) is inclined and inclined toward the bottom wall of the positioning hole (3), the flexible rod (53) is in a vertical state, and an avoidance opening (6) for the positioning pin (4) to pass through is formed between all the flexible rods (53).

2. The extrusion die for an aluminum frame of a photovoltaic module according to claim 1, characterized in that: Adjacent abutment blocks (54) are connected via an abutment spring (40), and the abutment spring (40) is sleeved on the flexible rod (53).

3. The extrusion die for an aluminum frame of a photovoltaic module according to claim 2, characterized in that: A folding spring sheet (50) is arranged inside the flexible rod (53); a bent portion (501) of the folding spring sheet (50) abuts against an inner wall of the flexible rod (53) on a side close to the positioning hole (3); two ends of the folding spring sheet (50) abut against the end of the flexible rod (53) to form a contact point (502); the contact point (502) is located on a side of the flexible rod (53) away from the positioning hole (3).

4. The extrusion die for an aluminum frame of a photovoltaic module according to claim 1, characterized in that: The abutment blocks (54) are provided with two, namely a fixed abutment block (541) and a movable abutment block (542); the fixed abutment block (541) is fixedly connected to the fixed block (511); a plug-in slot (7) is provided on the fixed abutment block (541); a plug-in block (8) pluggable with the plug-in slot (7) is provided on a side of the movable abutment block (542) close to the fixed abutment block (541); an abutment portion (5421) is formed on a side of the movable abutment block (542) away from the fixed abutment block (541); and a rough surface is formed on the abutment portion (5421) of the movable abutment block (542).

5. The extrusion die for the aluminum frame of a photovoltaic module according to claim 4, characterized in that: The plug-in slot (7) is in a flared shape, and the shape of the plug-in block (8) is compatible with the shape of the plug-in slot (7).

6. The extrusion die for an aluminum frame of a photovoltaic module according to claim 1, characterized in that: A smooth portion (521) is formed at the end of the rigid rod (52).

7. The extrusion die for an aluminum frame of a photovoltaic module according to claim 1, characterized in that: Four abutment rods (5) are provided, the synchronizing member is a bevel gear (9), the die (1) is provided with a mounting groove (11) at the opening of the positioning hole (3), the mounting grooves (11) are the same in number as the rotating pins (51) and correspond one to one, the rotating pins (51) are rotatably connected in the mounting grooves (11), the bevel gears (9) are coaxially fixed at both ends of the rotating pins (51), and the bevel gears (9) at the ends of adjacent rotating pins (51) are meshed with each other.

8. The extrusion die for an aluminum frame of a photovoltaic module according to claim 4, characterized in that: One end of the flexible rod (53) away from the fixed block (511) forms a limit block (10); the fixed abutting block (541) and the movable abutting block (542) are both provided with a penetration groove (20); the flexible rod (53) passes through the penetration grooves (20) of the two abutting blocks (54); the movable abutting block (542) is provided with a movable groove (30); the movable groove (30) is communicated with the penetration groove (20); and the limit block (10) is located in the movable groove (30).

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