Automatic grinding device for aluminum profile

Abstract

The invention discloses an automatic grinding device for aluminum profiles, and relates to the field of aluminum profile grinding, the automatic grinding device comprises a mounting frame, an annular support, an arc-shaped block, a first grinding wheel and a clamping assembly used for clamping and fixing the aluminum profiles, the annular support is fixedly mounted on the mounting frame, an annular sliding groove is formed in the annular support, the arc-shaped block slides in the sliding groove, and the first grinding wheel is arranged on the arc-shaped block. An avoiding opening communicating with the sliding groove is formed in the inner wall of the annular support, and a mounting plate is fixedly arranged on the arc-shaped block. An annular gear ring is further arranged on the inner wall of the annular support, a gear meshed with the annular gear ring is rotationally arranged on the mounting plate, and the first grinding wheel is arranged on the mounting plate; when the arc-shaped blocks slide on the annular support, the arc-shaped blocks correspond to the four stop points, and the four stop points correspond to the four circumferential faces of the aluminum profile in position; driving assemblies for driving the arc-shaped blocks to slide in the center direction of the annular support are arranged at the four stop points of the mounting frame. According to the aluminum profile grinding device, the automation degree of aluminum profile grinding can be improved, and the overall machining efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of aluminum profile grinding, and in particular to an automatic grinding device for aluminum profiles. Background Art

[0002] When processing aluminum profiles, they need to be cut first. After cutting, there will be burrs and other structures on the ends of the aluminum profiles, which need to be polished.

[0003] The grinding of aluminum profiles is usually divided into manual grinding and machine grinding. Manual grinding is usually performed with sandpaper or files, which is inefficient and has a very low degree of automation. Machine grinding usually uses a high-speed rotating first grinding wheel to contact the end face of the aluminum profile to achieve the grinding operation. In practice, after the machine finishes grinding the end face of the aluminum profile, burrs will still exist on the side of the end face of the aluminum profile, which still needs to be manually trimmed later, that is, the overall degree of automation of grinding is still low.

[0004] At present, aluminum profiles are transported by conveyor belts to cutting devices for cutting, and then the workers directly transfer the aluminum profiles to the grinding area. After grinding, they are placed on the conveyor belt and transported to the next process. In the middle, the aluminum profiles need to be transferred from the conveyor line to be polished and then transferred to the conveyor line, which takes a long time and reduces the processing efficiency. Summary of the invention

[0005] In order to improve the degree of automation of aluminum profile grinding and improve the overall processing efficiency, the present application provides an automatic grinding device for aluminum profiles.

[0006] The automatic grinding device for aluminum profiles provided in this application adopts the following technical solution: An automatic grinding device for aluminum profiles, comprising a mounting frame, an annular bracket, an arc block, a first grinding wheel and a clamping assembly for clamping and fixing the aluminum profiles, wherein the mounting frame is installed between a first conveyor line and a second conveyor line, the annular bracket is fixedly installed on the mounting frame, an annular sliding groove is formed on the annular bracket, the arc block slides in the sliding groove, an escape opening connected to the sliding groove is opened on the inner wall of the annular bracket, a mounting plate is fixedly arranged on the arc block, the mounting plate is located outside the sliding groove, the mounting plate and the arc block are connected by a connecting plate, and the connecting plate passes through the escape opening; an annular gear ring is also arranged on the inner wall of the annular bracket, and a gear meshing with the annular gear ring is rotatably arranged on the mounting plate , the first grinding wheel is arranged on the mounting plate; the annular bracket is provided with a plurality of elastic guide wheels at intervals on the inner wall of the sliding groove, and the elastic guide wheel is located on a side close to the center of the annular bracket; the annular bracket is provided with a plurality of fixed guide wheels at intervals on the inner wall of the sliding groove, the fixed guide wheel is away from the side of the center of the annular bracket and is arranged opposite to the elastic guide wheel, and a sliding gap for the sliding of the arc block is formed between the elastic guide wheel and the fixed guide wheel; when the arc block slides on the annular bracket, it corresponds to four stop points, and the positions of the four stop points correspond to the four circumferential surfaces of the aluminum profile; the mounting frame is provided with a driving component at the four stop points for driving the arc block to slide toward the center direction of the annular bracket.

[0007] By adopting the above technical solution, the aluminum profile continues to be conveyed backward after cutting on the first conveyor line. When it is conveyed to the grinding device, the aluminum profile stops moving. In practice, the moving distance of the aluminum profile is detected by a photoelectric sensor, and the aluminum profile is controlled to stop; then the clamping assembly clamps and fixes the aluminum profile, and the first grinding wheel can grind the peripheral side of the aluminum profile port. After the aluminum profile is clamped, it is located at the center of the annular bracket; the actual grinding process is as follows: the motor drives the gear to rotate, and the gear moves on the annular gear ring, thereby driving the arc block to rotate. The arc block moves to four stop points accordingly, and the four peripheral side surfaces of the aluminum profile can be ground. In this way, the automatic grinding of the aluminum profile is realized, and the aluminum profile does not need to be transported. After the grinding is completed, the aluminum profile continues to move to the second conveyor line and can be processed later. During the grinding process, the arc block slides more smoothly and stably under the action of the elastic guide wheel and the fixed guide wheel. The elastic guide wheel exerts a force on the arc block away from the center of the annular bracket, which can make the gear and the annular gear ring mesh more tightly, thereby ensuring the transmission effect. During the grinding operation, there will be vibration and movement. Because the gear and the annular gear ring mesh relatively tightly, during the long-term operation, the movement and vibration will cause continuous friction and impact between the gear and the annular gear ring, thereby causing wear and affecting the transmission effect. Therefore, when the arc block moves to the stop point, the drive assembly drives the arc block to slide toward the center of the annular bracket. At this time, the elastic guide wheel is compressed, and the gear and the annular gear ring gradually separate. In the subsequent grinding process, contact between the gear and the annular gear ring can be avoided, thereby preventing the gear or the annular gear ring from wearing and affecting the transmission effect.

[0008] Preferably, two guide plates are arranged side by side on the mounting plate, guide rails are arranged on opposite sides of the two guide plates, mounting seats are slidably connected on the two guide rails, a first cylinder is arranged on the mounting plate, an end of the first cylinder is fixedly connected to the mounting seat, a first motor is arranged on the mounting seat, and the first grinding wheel is coaxially fixed on the output shaft of the first motor.

[0009] By adopting the above technical solution, when the arc block moves to the stop point, the first cylinder drives the mounting seat to move toward the center direction of the annular bracket, so that the first grinding wheel contacts the peripheral side edge of the end face of the aluminum profile, and the first motor drives the first grinding wheel to rotate, thereby realizing the grinding operation of the aluminum profile.

[0010] Preferably, the mounting frame is further provided with a second grinding wheel for grinding the end surface of the aluminum profile, and the second grinding wheel moves along the X and Y directions on the mounting frame.

[0011] By adopting the above technical solution, the second grinding wheel grinds the end face of the aluminum profile, and in cooperation with the first grinding wheel, the end of the aluminum profile can be ground at one time, thereby improving the grinding efficiency and achieving a higher degree of automation.

[0012] Preferably, the elastic guide wheel consists of a fixed sleeve, a telescopic rod, a compression spring and a guide wheel, the fixed sleeve is fixed on the inner wall of the sliding groove, the telescopic rod is slidably matched with the fixed sleeve, a limiting plate is provided on the telescopic rod, the compression spring is sleeved on the fixed sleeve, one end of the compression spring is connected to the inner wall of the sliding groove, the other end of the compression spring is connected to the limiting plate, and the guide wheel is rotatably connected to the end of the telescopic rod.

[0013] By adopting the above technical solution, under the action of the compression spring, the guide wheel cooperates with the fixed guide wheel to limit the arc block to ensure the stability of the sliding of the arc block, and when the arc block slides toward the center of the annular bracket, the compression spring can provide a certain space to facilitate the movement of the arc block.

[0014] Preferably, the driving assembly includes a second cylinder and a driving block arranged at the end of the second cylinder, the second cylinder is fixedly mounted on the mounting frame, the annular bracket is provided with an avoidance groove for avoiding the driving block, and the arc block is provided with a plug-in groove adapted to the driving block on the side away from the center of the annular bracket.

[0015] By adopting the above technical solution, when the arc block moves to the stop point, the second cylinder drives the driving block to slide and engage with the plug-in groove of the arc block, and drives the arc block to slide toward the center of the annular bracket. At this time, the elastic guide wheel is compressed, the gear and the annular gear ring are disengaged or the gap between the teeth of the gear and the teeth of the annular gear ring increases, thereby preventing wear between the gear and the annular gear ring due to movement and vibration during the grinding process.

[0016] Preferably, the cross section of the driving block is trapezoidal, and the cross section of the plug-in slot is also trapezoidal.

[0017] By adopting the above technical solution, since there is a tooth side clearance between the gear and the annular gear ring, when the arc block moves to the stop point, due to the existence of the tooth side clearance, the first grinding wheel will not be directly facing the aluminum profile, and there will be a small deflection, which will affect the grinding effect; and the cross-section of the driving block is trapezoidal. When there is a small deflection between the arc block and the stop point, the driving block is plugged into the plug-in slot and is not exactly fitted. The side edge of the driving block will contact the side wall of the plug-in slot and then drive the arc block to move. When the arc block moves to the point where the gear and the annular gear ring are disengaged, the driving block and the inclined surface of the plug-in slot can drive the arc block to move, and the driving block and the plug-in slot are gradually and completely plugged in, that is, the positioning and trimming of the arc block is achieved through the driving block to ensure the grinding effect.

[0018] Preferably, the upper bottom wall of the driving block is fixedly connected with an abutment rod, a buffer spring is sleeved on the circumferential side of the abutment rod, and one end of the buffer spring is fixedly connected to the upper bottom wall of the driving block, and the other end of the buffer spring is a free end; the arc block is also provided with a buffer groove on the top wall of the plug-in groove, an abutment ring plate is formed on the inner wall of the buffer groove, and the abutment rod is plugged and slidably matched with the abutment ring plate; when the driving block is plugged and matched with the plug-in groove, the abutment rod is plugged with the abutment ring plate, the free end of the buffer spring abuts against the abutment ring plate, and the buffer spring is in a compressed state.

[0019] By adopting the above technical scheme, when the driving block is plugged into the plug-in slot, the buffer spring is in a compressed state. When the second cylinder drives the driving block to slide and gradually disengage from the plug-in slot, the arc block is subjected to the elastic force of the elastic guide wheel. If the driving block moves faster, the moving speed of the arc block will also be faster, which will also cause a collision between the gear and the annular gear ring. If this continues for a long time, wear will occur, affecting the transmission effect. By using the buffer spring, when the driving block and the arc block are disengaged, the buffer spring will temporarily support the arc block. Although the supporting force is not large, it can also reduce the instantaneous descent speed of the arc block, thereby preventing a large collision between the gear and the annular gear ring.

[0020] In addition, during the insertion process of the drive block and the socket, the buffer spring will first contact the abutment ring plate, that is, during the insertion process of the drive block, it will provide a certain buffering effect to avoid the impact force caused by direct contact, thereby protecting the various components of the device and improving the service life and stability of the device.

[0021] Preferably, the upper end of the abutment rod is hinged with a support block via a bidirectional torsion spring.

[0022] By adopting the above technical scheme, when there is a small deflection between the arc block and the stop point due to the tooth side clearance, when the driving block is plugged into the arc block's plug-in slot, the two cannot fit exactly, and the side edge of the driving block will abut against the side wall of the plug-in slot, and the support block will also abut against the upper bottom wall of the plug-in slot. Under the two-point support of the side edge of the driving block and the support block, the arc block can be driven to slide. When the arc block slides, that is, the gap between the teeth of the gear and the teeth of the arc gear ring increases. At this time, the driving block continues to rise, and the arc block can rotate along the inclined surface of the driving block to a certain extent, so that the side wall of the driving block is parallel to the side wall of the plug-in slot. In this process, under the rotation of the arc block, the support block is driven to rotate. The rotation of the support block can reduce the force between the upper and bottom walls of the arc block, thereby reducing the friction, which is convenient for the arc block to rotate smoothly. In the process of rotation of the arc block, the support block enters the buffer groove. Under the action of the bidirectional torsion spring, the support block is reset and plugged into the abutting ring plate.

[0023] Preferably, the clamping assembly includes a clamping plate and a lower pressing plate, two clamping plates are provided and distributed on both sides of the aluminum profile, and the lower pressing plate is lifted and lowered on a mounting frame to press the aluminum profile.

[0024] By adopting the above technical solution, when the aluminum profile is moved to a suitable position, the two clamping plates move toward each other to clamp the aluminum profile, and then the lower pressing plate descends to press the aluminum profile to fix the aluminum profile.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The grinding device is installed between the first conveyor line and the second conveyor line. The grinding operation can be directly carried out in the middle of the aluminum profile conveying, and the aluminum profile does not need to be transported, which helps to improve the processing efficiency of the aluminum profile; 2. When the aluminum profile moves to the middle of the mounting frame, the second grinding wheel grinds the end face of the aluminum profile, and the first grinding wheel grinds the four peripheral sides of the end face of the aluminum profile. The first grinding wheel moves on the annular bracket to achieve the grinding of the four peripheral sides of the aluminum profile. There is no need to set up multiple second grinding wheels and corresponding driving mechanisms, which reduces the cost of the device; 3. The driving block drives the arc block to move a small distance toward the center of the annular bracket, so that the gap between the teeth of the gear and the teeth of the annular gear ring increases, thereby preventing the gear and the annular gear ring from constantly colliding and wearing due to movement and vibration during the grinding process, thereby affecting the transmission effect; 4. Through the cooperation between the trapezoidal driving block and the plug-in slot, when the arc block has a small deflection, the driving block can drive the arc block to move, so that the driving block and the plug-in slot are fully plugged in, and at the same time, the position of the arc block is trimmed and positioned to ensure the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present application; Figure 2 This is a schematic diagram of the overall structure of the mounting frame in Example 1 of the present application; Figure 3 This is a cross-sectional view of the annular bracket in Example 1 of the present application; Figure 4 This is a schematic diagram of the structure of the elastic guide wheel in the first embodiment of the present application; Figure 5 This is a cross-sectional view of the annular bracket in the first embodiment of the present application, mainly showing the structure of the plug-in slot; Figure 6 This is a schematic diagram of the plug-in slot of the driving block in the second embodiment of the present application; Figure 7 This is a diagram of the plugging state of the driving block and the plugging slot when the arc block has a deflection angle in the second embodiment of the present application; Figure 8 This is a schematic diagram of the insertion slot of the driving block in the third embodiment of the present application; Fig. 9 for Figure 8 A partial enlarged view of middle A; Fig.10 This is a schematic diagram of the plug-in slot of the driving block in the fourth embodiment of the present application; Fig.11 for Fig.10 A partial enlarged view of B in the middle; Fig.12 This is a state diagram of the support block during the positioning and trimming process of the arc block in the fourth embodiment of the present application.

[0027] Figure numerals: 1, mounting frame; 11, fixing plate; 2, annular bracket; 21, sliding groove; 211, avoidance; 22, annular gear ring; 23, avoidance groove; 3, arc block; 31, plug-in groove; 32, buffer groove; 321, abutment ring plate; 33, guide surface; 4, first grinding wheel; 5, second grinding wheel; 6, clamping assembly; 61, clamping plate; 62, lower pressure plate; 7, first conveyor line; 8, second conveyor line; 9, mounting plate; 91, gear; 92, Guide plate; 921, guide rail; 93, mounting seat; 94, first cylinder; 95, first motor; 96, second motor; 10, connecting plate; 20, elastic guide wheel; 201, fixed sleeve; 202, telescopic rod; 2021, limit plate; 203, compression spring; 204, guide wheel; 30, fixed guide wheel; 50, drive assembly; 501, second cylinder; 502, drive block; 60, abutment rod; 601, buffer spring; 602, support block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 -Attached Fig.12 This application is described in further detail.

[0029] The embodiment of the present application discloses an automatic grinding device for aluminum profiles.

[0030] Example 1 Reference Figure 1 , Figure 2 and Figure 3 The automatic grinding device for aluminum profiles includes a mounting frame 1, an annular bracket 2, an arc block 3, a first grinding wheel 4, a second grinding wheel 5 and a clamping assembly 6 for clamping and fixing the aluminum profile. In practice, the grinding device is installed between a first conveyor line 7 and a second conveyor line 8. The first conveyor line 7 and the second conveyor line 8 are used to convey aluminum profiles. After the aluminum profiles are cut on the first conveyor line 7, they are conveyed to the second conveyor line 8.

[0031] The annular bracket 2 is installed in the middle of the mounting frame 1. An annular sliding groove 21 is provided in the annular bracket 2. The arc block 3 slides in the sliding groove 21. A mounting plate 9 is fixedly provided on the arc block 3. The mounting plate 9 is located on the outer side of the annular bracket 2. An annular gear ring 22 is provided on the inner side wall of the annular bracket 2. A gear 91 meshing with the annular gear ring 22 is rotatably provided on the mounting plate 9. The first grinding wheel 4 is provided on the mounting plate 9. Four stop points are formed on the annular bracket 2 corresponding to the four peripheral side surfaces of the end face of the aluminum profile, and they are the first, second, third and fourth stop points respectively. The second grinding wheel 5 is used to process the end face of the aluminum profile. The second grinding wheel 5 can move in the X and Y directions on the mounting frame 1. The moving mechanism that drives the second grinding wheel 5 is a conventional cross slide, which will not be described in detail here.

[0032] When the aluminum profile is transported from the first conveyor line 7 to the grinding device, the aluminum profile stops. In practice, the moving position of the end face of the aluminum profile is detected by a photoelectric sensor to ensure that the aluminum profile moves to the specified position. The clamping assembly 6 clamps and fixes the aluminum profile, and then the second grinding wheel 5 first grinds the end face of the aluminum profile after cutting, and then the first grinding wheel 4 processes the peripheral side of the aluminum profile, and the driving gear 91 rotates. The gear 91 moves on the annular gear ring 22, which can drive the arc block 3 to slide to different stop points, thereby realizing the grinding operation of the four peripheral side faces of the end face of the aluminum profile.

[0033] That is, the grinding operation of aluminum profiles is carried out by this device with a higher degree of automation and no staff intervention is required. At the same time, after the cutting of the aluminum profile is completed, there is no need to transfer the aluminum profile. The grinding operation can be completed directly on the conveyor line, and then it is directly transported to the next process on the conveyor line, which greatly improves the processing efficiency of the aluminum profile.

[0034] Reference Figure 2 and Figure 3 Two guide plates 92 are arranged side by side on the mounting plate 9, and guide rails 921 are provided on the opposite sides of the guide plates 92. Mounting seats 93 are slidably connected on the two guide rails 921, and the mounting seats 93 slide in the direction of approaching and moving away from the center of the annular bracket 2; a first cylinder 94 is installed on the mounting plate 9, and the end of the piston rod of the first cylinder 94 is connected to the mounting seat 93, and a first motor 95 is installed on the mounting seat 93. The first grinding wheel 4 is coaxially fixed with the output shaft of the first motor 95, and a second motor 96 that drives the first grinding wheel 4 to rotate is also installed on the mounting plate 9.

[0035] During grinding, the first cylinder 94 drives the mounting seat 93 to slide toward the center of the annular bracket 2, so that the first grinding wheel 4 contacts the surface of the aluminum profile, and under the action of the first motor 95, the first grinding wheel 4 is driven to rotate, thereby realizing the grinding operation of the aluminum profile.

[0036] Reference Figure 1 and Figure 2 The clamping assembly 6 includes a clamping plate 61 and a lower pressure plate 62. Two clamping plates 61 are arranged opposite to each other. A fixing plate 11 is installed on the mounting frame 1. A cylinder for driving the clamping plate 61 to move is installed on the fixing plate 11. The upper two clamping plates 61 are distributed on both sides of the aluminum profile. After the aluminum profile moves to the specified position, the two clamping plates 61 move toward each other and clamp the aluminum profile under the drive of the cylinder; the lower pressure plate 62 is raised and lowered on the mounting frame 1, and is driven by the cylinder. The lower pressure plate 62 is pressed against the upper side of the aluminum profile, and cooperates with the clamping plate 61 to achieve clamping and fixing of the aluminum profile.

[0037] Reference Figure 2 and Figure 3 An avoidance opening 211 communicating with the sliding groove 21 is opened on the inner side of the annular bracket 2 , and the arc block 3 and the mounting plate 9 are fixedly connected by a connecting plate 10 , and the connecting plate 10 passes through the avoidance opening 211 .

[0038] Reference Figure 3 and Figure 4 The elastic guide wheel 20 and the fixed guide wheel 30 are arranged on the inner wall of the sliding groove 21 of the annular bracket 2. The elastic guide wheel 20 is located on the side close to the center of the annular bracket 2, and the fixed guide wheel 30 is located on the side away from the center of the annular bracket 2. A sliding gap for the arc block 3 to slide is formed between the elastic guide wheel 20 and the fixed guide wheel 30. The elastic guide wheel 20 is composed of a fixed sleeve 201, a telescopic rod 202, a compression spring 203 and a guide wheel 204. The fixed sleeve 201 is fixed on the inner wall of the sliding groove 21. The telescopic rod 202 is slidably matched with the fixed sleeve 201. A limiting plate 2021 is integrally formed on the telescopic rod 202. The compression spring 203 is sleeved on the fixed sleeve 201. One end of the compression spring 203 is connected to the inner wall of the sliding groove 21, and the other end is connected to the limiting plate 2021. The guide wheel 204 is rotatably connected to the end of the telescopic rod 202. Through the action of the compression spring 203, the guide wheel 204 and the fixed guide wheel 30 can cooperate to limit the arc block 3 to ensure the stability of the sliding of the arc block 3; and under the action of the elastic guide wheel 20, the gear 91 and the annular gear ring 22 can be tightly engaged to ensure the transmission effect.

[0039] A guide surface 33 is also provided in the middle of the side of the arc block 3. When the arc block 3 is not in contact with the elastic guide wheel 20, the compression spring 203 is in an extended state. When the arc block 3 gradually contacts the subsequent elastic guide wheel 20, the guide wheel 204 moves along the guide surface 33, causing the compression spring 203 to be gradually compressed. In this way, the elastic guide wheel 20 can cooperate smoothly with the arc block 3.

[0040] Reference Figure 2 and Figure 5The mounting frame 1 is provided with a driving assembly 50 at each of the four stop points for driving the arc block 3 to slide toward the center of the annular bracket 2. When the first grinding wheel 4 is grinding, there will be vibration and movement. Under the action of the elastic guide wheel 20, the gear 91 and the annular gear ring 22 are tightly meshed. When the vibration moves, there will be wear between the gear 91 and the annular gear ring 22, which will affect the transmission effect in the long run. When the arc block 3 moves to the stop point, the driving assembly 50 drives the arc block 3 to slide toward the annular bracket 2, so that the gap between the teeth of the gear 91 and the teeth of the annular gear ring 22 increases, thereby effectively avoiding the wear of the gear 91 and the annular gear ring 22 during the grinding process.

[0041] The driving assembly 50 includes a second cylinder 501 and a driving block 502. The driving block 502 is in a cube or rectangular shape. The driving block 502 is fixed to the end of the piston rod of the second cylinder 501. The second cylinder 501 is fixedly mounted on the mounting frame 1. The annular bracket 2 is provided with an avoidance groove 23 for avoiding the driving block 502. The arc block 3 is provided with a plug-in groove 31 adapted to the driving block 502 on the side away from the center of the annular bracket 2. When the arc block 3 moves to the stop point, the second cylinder 501 drives the driving block 502 to slide. The driving block 502 passes through the avoidance groove 23 and plugs into the plug-in groove 31, and drives the arc block 3 to slide toward the center of the annular bracket 2, thereby increasing the gap between the gear 91 and the annular gear ring 22. When the driving block 502 stops moving, the limit plate 2021 abuts against the fixed sleeve 201. In practice, the moving distance of the arc block 3 is small, because the gear 91 and the annular gear ring 22 are engaged through teeth, and the teeth are trapezoidal in shape. Therefore, only a small movement distance is required, and the gap between the two will become larger, and the gear 91 and the annular gear ring 22 will not disengage.

[0042] The implementation principle of the automatic grinding device for aluminum profiles in the embodiment of the present application is as follows: after the aluminum profile is cut, it is conveyed from the first conveyor line 7 to the second conveyor line 8. When the aluminum profile moves to the specified position, the clamping plate 61 and the lower pressure plate 62 fix the aluminum profile, and then the second grinding wheel 5 first grinds the end face of the aluminum profile, and then the first grinding wheel 4 grinds the peripheral side face of the end face of the aluminum profile; the gear 91 is driven to rotate by the second motor 96, and the gear 91 moves on the annular gear ring 22, which can drive the first grinding wheel 4 to move to different stop points for grinding, thereby realizing the grinding of the four peripheral side faces of the aluminum profile, that is, The entire grinding process does not require the participation of staff, has a higher degree of automation, and does not require the transportation of aluminum profiles. The grinding of aluminum profiles can be completed directly on the conveyor line, which greatly improves the overall processing efficiency of aluminum profiles. When the arc block 3 moves to the stop point, the second cylinder 501 drives the driving block 502 to slide, and the driving block 502 is plugged into the plug-in groove 31 and drives the arc block 3 to move toward the center direction of the annular bracket 2, so that the gap between the gear 91 and the annular gear ring 22 is increased, thereby preventing the gear 91 and the annular gear ring 22 from being worn due to vibration during the grinding process, thereby affecting the transmission effect.

[0043] Example 2 Reference Figure 6 The difference between this embodiment and the first embodiment is that the cross section of the driving block 502 is trapezoidal, and the shape of the plug-in slot 31 is adapted to the driving block 502, and its cross section is also trapezoidal.

[0044] There is a tooth side clearance between the gear 91 and the annular gear ring 22. Therefore, when the arc block 3 moves to the stop point, the tooth side clearance will cause a small deviation in the position of the arc block 3, that is, there will be a small deviation between the grinding surface of the first grinding wheel 4 and the surface to be processed of the aluminum profile. Then, during the grinding process, the flatness of the peripheral side of the aluminum profile will be flawed. Different aluminum profiles have different requirements for the flatness of their surfaces. Ordinary aluminum profiles require a flatness of ≤0.5mm, while special precision aluminum profiles require a flatness of ≤0.01mm. Therefore, in the case of high requirements for the flatness of the peripheral side of the aluminum profile, it is necessary to trim the first grinding wheel 4, that is, to position and trim the position of the arc block 3.

[0045] When the drive block 502 is plugged into the plug slot 31, if there is a deviation, the drive block 502 and the plug slot 31 will not be plugged smoothly. Figure 7The side of the driving block 502 will first contact the side wall of the plug-in slot 31, and then drive the arc block 3 to move. When the arc block 3 moves to the point where the gap between the gear 91 and the annular gear ring 22 increases, the arc block 3 can be driven to deflect under the action of the inclined surface of the driving block 502 and the plug-in slot 31, and the driving block 502 and the plug-in slot 31 can be fully plugged in. At the same time, the arc block 3 is positioned and trimmed, thereby ensuring the polishing effect and improving the flatness of the aluminum profile surface.

[0046] Example 3 Reference Figure 8 and Fig. 9 The difference between this embodiment and embodiment 2 is that the upper bottom wall of the driving block 502 is fixedly connected with an abutment rod 60, and a buffer spring 601 is sleeved on the circumferential side of the abutment rod 60, one end of the buffer spring 601 is fixedly connected to the upper bottom wall of the driving block 502, and the other end of the buffer spring 601 is a free end; a buffer groove 32 is provided on the top wall of the arc block 3 located on the plug-in groove 31, and an abutment ring plate 321 is integrally formed on the inner wall of the buffer groove 32, and the abutment rod 60 and the abutment ring plate 321 are plugged and slidably matched. When the driving block 502 is plugged and matched with the plug-in groove 31, the abutment rod 60 is plugged with the abutment ring plate 321, the free end of the buffer spring 601 abuts against the abutment ring plate 321, and the buffer spring 601 is in a compressed state.

[0047] The buffer spring 601 mainly acts at the first stop point; in the case of the first stop point: after the driving block 502 is plugged into the plug-in slot 31, the buffer spring 601 is in a compressed state. When the second cylinder 501 drives the driving block 502 to slide and gradually disengage from the plug-in slot 31, under the dual effects of gravity and the abutment spring, the arc block 3 moves at a faster speed, which will cause a collision between the gear 91 and the annular gear ring 22. If things go on like this, serious wear will occur. Therefore, by using the buffer spring 601, when the driving block 502 and the arc block 3 are disengaged, the buffer spring 601 can temporarily support the arc block 3, and can buffer the movement of the arc block 3, thereby preventing the gear 91 and the annular gear ring 22 from being worn.

[0048] Example 4 Reference Fig.10 and Fig.11 The difference between this embodiment and embodiment 3 is that the upper end of the abutment rod 60 is hinged to a support block 602 via a bidirectional torsion spring.

[0049] When there is a small deviation between the arc block 3 and the stop point due to the tooth side clearance, when the driving block 502 is plugged into the plug-in slot 31 of the arc block 3, the two cannot fit exactly, and the side edge of the driving block 502 will abut against the side wall of the plug-in slot 31, and the support block 602 will also abut against the upper and bottom walls of the plug-in slot 31. Under the two-point support of the side edge of the driving block 502 and the support block 602, the arc block 3 can be driven to slide, and although the upper surface of the support block 602 is not directly abutting against the top wall of the plug-in slot 31, only one of the edges acts, the support block 602 will not rotate; after the arc block 3 slides, that is, the gap between the teeth of the gear 91 and the teeth of the arc gear ring increases, at this time, the driving block 502 continues to rise, and the arc block 3 can rotate along the inclined surface of the driving block 502 to a certain extent, so that the side wall of the driving block 502 is parallel to the side wall of the plug-in slot 31. In this process, refer to Fig.12 As the arc block 3 rotates, the support block 602 is driven to rotate. The rotation of the support block 602 can reduce the force between the upper and lower walls of the arc block 3, thereby reducing the friction, making it easier for the arc block 3 to rotate smoothly. During the rotation of the arc block 3, the support block 602 enters the buffer groove 32. Under the action of the bidirectional torsion spring, the support block 602 is reset and plugged into the abutting ring plate 321.

[0050] 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 automatic grinding device for aluminum profiles, characterized in that: The invention comprises a mounting frame (1), an annular support (2), an arc block (3), a first grinding wheel (4) and a clamping assembly (6) for clamping and fixing an aluminum profile, wherein the mounting frame (1) is mounted between a first conveyor line (7) and a second conveyor line (8), the annular support (2) is fixedly mounted on the mounting frame (1), an annular sliding groove (21) is formed on the annular support (2), the arc block (3) slides in the sliding groove (21), and the inner portion of the annular support (2) is provided with a plurality of arc blocks (3). The wall of the annular bracket (2) is provided with an avoidance opening (211) which is in communication with the sliding groove (21); a mounting plate (9) is fixedly provided on the arc block (3); the mounting plate (9) is located outside the sliding groove (21); the mounting plate (9) and the arc block (3) are connected via a connecting plate (10); the connecting plate (10) passes through the avoidance opening (211); an annular gear ring (22) is also provided on the inner wall of the annular bracket (2); a gear wheel (22) is rotatably provided on the mounting plate (9) which meshes with the annular gear ring (22) The invention relates to a gear (91) connected to the annular support (2), wherein the first grinding wheel (4) is arranged on the mounting plate (9); a plurality of elastic guide wheels (20) are arranged at intervals on the inner wall of the sliding groove (21) of the annular support (2), and the elastic guide wheel (20) is located on a side close to the center of the annular support (2); a plurality of fixed guide wheels (30) are arranged at intervals on the inner wall of the sliding groove (21) of the annular support (2), and the fixed guide wheel (30) is located on a side away from the center of the annular support (2) and is arranged opposite to the elastic guide wheel (20); a sliding gap for the sliding movement of the arc block (3) is formed between the elastic guide wheel (20) and the fixed guide wheel (30); when the arc block (3) slides on the annular support (2), four stop points are corresponding, and the positions of the four stop points correspond to the four peripheral surfaces of the aluminum profile; the mounting frame (1) is provided with a driving assembly (50) at each of the four stop points for driving the arc block (3) to slide toward the center of the annular support (2).

2. The automatic grinding device for aluminum profiles according to claim 1, characterized in that: Two guide plates (92) are arranged side by side on the mounting plate (9), guide rails (921) are arranged on opposite sides of the two guide plates (92), mounting seats (93) are slidably connected to the two guide rails (921), a first cylinder (94) is arranged on the mounting plate (9), an end of the first cylinder (94) is fixedly connected to the mounting seat (93), a first motor (95) is arranged on the mounting seat (93), and the first grinding wheel (4) is coaxially fixed to the output shaft of the first motor (95).

3. The automatic grinding device for aluminum profiles according to claim 1, characterized in that: The mounting frame (1) is also provided with a second grinding wheel (5) for grinding the end surface of the aluminum profile, and the second grinding wheel (5) moves along the X and Y directions on the mounting frame (1).

4. The automatic grinding device for aluminum profiles according to claim 1, characterized in that: The elastic guide wheel (20) is composed of a fixed sleeve (201), a telescopic rod (202), a compression spring (203) and a guide wheel (204); the fixed sleeve (201) is fixed on the inner wall of the sliding groove (21); the telescopic rod (202) and the fixed sleeve (201) are slidably matched; a limit plate (2021) is provided on the telescopic rod (202); the compression spring (203) is sleeved on the fixed sleeve (201); one end of the compression spring (203) is connected to the inner wall of the sliding groove (21); the other end of the compression spring (203) is connected to the limit plate (2021); and the guide wheel (204) is rotatably connected to the end of the telescopic rod (202).

5. An automatic grinding device for aluminum profiles according to any one of claims 1 to 4, characterized in that: The driving assembly (50) comprises a second cylinder (501) and a driving block (502) arranged at the end of the second cylinder (501); the second cylinder (501) is fixedly mounted on the mounting frame (1); a clearance groove (23) for avoiding the driving block (502) is provided on the annular bracket (2); and a plug-in groove (31) adapted to the driving block (502) is provided on a side of the arc block (3) away from the center of the annular bracket (2).

6. The automatic grinding device for aluminum profiles according to claim 5, characterized in that: The cross section of the driving block (502) is in a trapezoidal shape, and the cross section of the plug-in slot (31) is also in a trapezoidal shape.

7. The automatic grinding device for aluminum profiles according to claim 6, characterized in that: The upper bottom wall of the driving block (502) is fixedly connected to an abutment rod (60), a buffer spring (601) is sleeved on the circumferential side of the abutment rod (60), one end of the buffer spring (601) is fixedly connected to the upper bottom wall of the driving block (502), and the other end of the buffer spring (601) is a free end; the arc block (3) is also provided with a buffer groove (32) on the top wall of the plug-in groove (31), an abutment ring plate (321) is formed on the inner wall of the buffer groove (32), and the abutment rod (60) and the abutment ring plate (321) are plugged and slidably matched; when the driving block (502) is plugged and matched with the plug-in groove (31), the abutment rod (60) and the abutment ring plate (321) are plugged, the free end of the buffer spring (601) abuts against the abutment ring plate (321), and the buffer spring (601) is in a compressed state.

8. The automatic grinding device for aluminum profiles according to claim 7, characterized in that: The upper end of the abutment rod (60) is hingedly connected to a support block (602) via a bidirectional torsion spring.

9. The automatic grinding device for aluminum profiles according to claim 1, characterized in that: The clamping assembly (6) comprises a clamping plate (61) and a lower pressing plate (62), wherein two clamping plates (61) are provided and are distributed on both sides of the aluminum profile, and the lower pressing plate (62) is lifted and arranged on the mounting frame (1) to press the aluminum profile.

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