Metal material polishing device

Abstract

This invention provides a metal material grinding device, belonging to the technical field of grinding devices. The device includes a processing table and a movable frame slidably mounted on the processing table. A grinding frame is slidably mounted on the movable frame, and a grinding belt is mounted on the grinding frame. It also includes a bonding assembly, comprising two sets of bonding frames rotatably mounted on the grinding frame, the two sets of bonding frames being arranged opposite each other. A bonding block is slidably mounted on the bonding frame, and a floating roller is rotatably mounted on the bonding block. This invention, through the synergistic effect of the bonding assembly, the compensating grinding assembly, and the grinding belt, enables the grinding belt to automatically adjust its local contact state and pressure distribution according to the irregular morphological changes such as depressions and protrusions on the surface of the round steel. This achieves adaptive compensation grinding for different surface defects, effectively solving the problems of difficulty in locally adapting grinding for uneven defects and uneven grinding in existing technologies.

Description

Technical Field

[0001] This invention belongs to the technical field of grinding devices, and specifically relates to a grinding device for metal materials. Background Technology

[0002] In the field of metal material processing, metal materials, especially round steel, often have defects such as oxide scale, scratches, pits, protrusions and dimensional deviations on their surfaces during rolling, forging or transportation. Therefore, it is necessary to treat their surfaces with grinding equipment to improve surface quality, dimensional accuracy and subsequent processing or use performance. Thus, the surface grinding of round steel plays an important role in industries such as machinery manufacturing and metallurgical processing.

[0003] Chinese patent CN116728178B discloses a titanium rod grinding device, comprising: a first support mounted on a horizontal plane; a support mechanism mounted on the upper surface of the first support, capable of supporting and rotating the titanium rod; a second support radially mounted on one side of the support mechanism, with multiple rollers rotatably connected to the bottom of the second support, capable of moving the second support axially along the titanium rod; a grinding mechanism mounted inside the second support, capable of pressing against the titanium rod and grinding it to generate a back force, and capable of disengaging from the titanium rod; and an intermittent mechanism mounted above the second support, capable of driving the grinding mechanism to press against the titanium rod, and capable of disengaging from the titanium rod according to the back force. This application has the effect of reducing the grinding temperature of the titanium rod, reducing the amount of crystals on the surface of the titanium rod, thereby reducing the adverse effects of crystallization on the performance of the titanium rod.

[0004] However, the above technical solution still has the following defects. When grinding irregular defects such as depressions or protrusions on the surface of round steel, since the grinding mechanism usually adopts a single-point or single-sided rigid contact method, its contact pressure and contact shape are difficult to adaptively adjust according to the changes in surface morphology. This results in the problem that the depression area cannot be fully ground or the protruding edge area is not ground enough, thus affecting the overall grinding uniformity and surface processing quality. Summary of the Invention

[0005] The purpose of this invention is to provide a metal material grinding device that aims to solve the problems in the prior art of making it difficult to achieve local adaptive grinding of concave and convex defects on the surface of round steel, and easily causing uneven grinding.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a metal material grinding device, comprising: a processing table and a movable frame slidably disposed on the processing table, a grinding frame slidably disposed on the movable frame, and a grinding belt disposed on the grinding frame, and further comprising: The bonding assembly includes two sets of bonding frames rotatably mounted on the grinding frame. The two sets of bonding frames are arranged opposite to each other. A bonding block is slidably mounted on the bonding frame, and a floating roller is rotatably mounted on the bonding block. The compensating grinding assembly includes a lower pressure frame that is slidably disposed inside the grinding frame. The lower pressure frame is located between two sets of bonding frames. Auxiliary frames are respectively disposed on both sides of the lower pressure frame. A main pressure roller is rotatably disposed on the lower pressure frame, and an auxiliary roller is rotatably disposed on the auxiliary frames. The main pressure roller and the auxiliary roller have the same diameter and are smaller than the diameter of the floating roller. The cooling component includes an air duct mounted on the grinding frame. The air duct is used to connect to an external air source. A control plate is slidably mounted on the air duct. A sealing block for opening and closing the internal cavity of the air duct is provided on one side of the control plate.

[0007] Its effect is that, through the synergistic effect of the bonding component, the compensation grinding component and the cooling component, the grinding belt can adaptively conform to the irregular shape of the round steel surface, realize the local compensation grinding of the concave and convex defects, and at the same time, the air channel cooling avoids the workpiece burning and ensures the uniformity of grinding.

[0008] A further technical solution of the present invention is that a gear set is provided on one side of the bonding frame, and a first driving device is provided on the outside of the grinding frame to control the gear set to drive the two bonding frames to rotate in opposite directions. The bonding block is provided on the side of the bonding frame away from the gear set and on the side of the two bonding frames close to each other. A first elastic element is connected to one side of the bonding block, and the other end of the first elastic element is connected to the bonding frame. The first elastic element is a spring. A floating roller is provided on the side of the two bonding blocks close to each other. A bonding roller is rotatably provided on the bonding frame and is provided on the side of the two bonding frames away from each other.

[0009] A further technical solution of the present invention is that a drive roller is provided inside the grinding frame, and a second drive device capable of controlling the fixed-axis rotation of the drive roller is provided outside the grinding frame. A compensation frame is slidably provided inside the grinding frame and is located above the drive roller. A second elastic element is provided on the compensation frame, and the other end of the second elastic element is connected to the grinding frame. The second elastic element is a spring, and the elastic force of the second elastic element is less than the elastic force of the first elastic element. A compensation roller is rotatably provided on the compensation frame.

[0010] Its effect is that by setting up a compensation frame and a second elastic element with less elasticity, the length change of the grinding belt can be automatically compensated during the installation of the grinding belt and its contact with the workpiece, so that the grinding belt always maintains a suitable tension and avoids affecting the grinding effect due to being too loose or too tight.

[0011] A further technical solution of the present invention is that a third elastic element is provided on the lower pressure frame, the other end of the third elastic element is connected to the grinding frame, the third elastic element is configured as a spring, the auxiliary frame is slidably disposed on the grinding frame, and an installation block is slidably disposed on the side of the auxiliary frame near the grinding belt, a fourth elastic element is connected on the installation block, the other end of the fourth elastic element is connected to the auxiliary frame, the elastic force of the fourth elastic element is less than the elastic force of the third elastic element, and the fourth elastic element is configured as a spring.

[0012] A further technical solution of the present invention is that sliding columns are provided on both sides of the lower pressure frame and the auxiliary frame, and a guide rod is provided inside the grinding frame to slide and cooperate with the sliding column. The guide rod can rotate along a fixed axis inside the grinding frame. A sensing element is provided on the lower pressure frame, and an indicator plate is provided inside the grinding frame to cooperate with the sensing element.

[0013] A further technical solution of the present invention is that the sealing block passes through the air passage and can slide to seal the internal cavity of the air passage. A fifth elastic element is provided on one side of the control plate, and the other end of the fifth elastic element is connected to the air passage. At least one of the lower pressure frame and the auxiliary frame can contact the side of the control plate. The air passage passes through the grinding frame and extends to the outside of the grinding frame. Multiple sets of air blowing holes are opened on the side of the air passage near the workpiece. The air blowing holes face the grinding position of the grinding belt. The fifth elastic element is set as a spring.

[0014] Its effect is that the air passage cavity is opened and closed by the displacement linkage control plate of the lower pressure frame or auxiliary frame, so that the air volume is automatically adjusted according to the grinding contact state. When the workpiece is smooth, basic cooling is maintained, and when uneven defects occur, cooling is automatically enhanced to achieve targeted cooling.

[0015] A further technical solution of the present invention is that a spray pipe is provided inside the grinding frame, a spray head is provided on the side of the spray pipe near the workpiece, a plurality of cleaning holes are provided on the side of the air passage away from the air blowing hole, the cleaning holes face the grinding surface side of the grinding belt, the cleaning holes are connected to the internal cavity of the air passage, and a control valve is provided on the air passage.

[0016] A further technical solution of the present invention is that a fixed chuck is rotatably arranged on the processing table, a movable chuck that cooperates with the fixed chuck is slidably arranged on the processing table, and a control unit that can drive the grinding frame to reciprocate along the movable frame is arranged on the moving frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the synergistic effect of the bonding component, the compensation grinding component, and the grinding belt, enables the grinding belt to automatically adjust the local contact state and pressure distribution according to the irregular morphological changes such as depressions and protrusions on the surface of the round steel, thereby achieving adaptive compensation grinding for different surface defects. This effectively solves the problem in the prior art that it is difficult to locally adapt the grinding of uneven defects and easily leads to uneven grinding.

[0018] 2. This invention links the cooling component with the compensation grinding state, and in conjunction with the cleaning and spraying structure, it achieves targeted cooling of local high-temperature areas and dynamic cleaning of grinding debris on the surface of the grinding belt. This improves grinding stability while avoiding surface burns and secondary damage, further enhancing the overall surface quality and processing consistency of the workpiece. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the mobile frame in a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the grinding frame in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the grinding frame in a specific embodiment of the present invention; Figure 5 This is a front view of the internal structure of the grinding frame in a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the installation structure of the bonding component in a specific embodiment of the present invention; Figure 7 for Figure 4 Enlarged structural diagram at point A; Figure 8 This is a schematic diagram of the structure of the compensation grinding component in a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the installation structure of the airway and control board in a specific embodiment of the present invention; Figure 10 This is a schematic diagram of the cooling component and spray pipe in a specific embodiment of the present invention; Figure 11 This is a schematic diagram showing the position and structure of the grinding frame, air duct, and spray pipe in a specific embodiment of the present invention.

[0020] In the diagram: 1. Processing table; 11. Fixed chuck; 12. Moving chuck; 2. Moving frame; 21. Grinding frame; 3. Grinding belt; 4. Bonding assembly; 41. Bonding frame; 411. Gear set; 42. First drive device; 43. Bonding block; 431. First elastic element; 432. Floating roller; 44. Bonding roller; 45. Drive roller; 451. Second drive device; 46. Compensation frame; 461. Second elastic element; 462. Compensation roller; 5. Compensating grinding assembly; 51 511. Lower pressure frame; 512. Third elastic element; 513. Main pressure roller; 514. Sensing element; 515. Indicator plate; 52. Auxiliary frame; 526. Mounting block; 527. Fourth elastic element; 528. Auxiliary roller; 53. Sliding column; 539. Guide rod; 60. Cooling assembly; 610. Air passage; 611. Air blowing hole; 612. Cleaning hole; 613. Control valve; 62. Control plate; 621. Sealing block; 622. Fifth elastic element; 71. Spray pipe; 723. Spray head. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-11 The present invention provides the following technical solution: a metal material grinding device, including a processing table 1, a moving frame 2, a grinding belt 3, a bonding component 4, a compensating grinding component 5, and a cooling component 6.

[0023] The processing table 1 is placed horizontally on the ground. The round steel workpiece to be ground is placed on the processing table 1. The moving frame 2 is slidably mounted on the processing table 1. The grinding belt 3 is mounted on the moving frame 2 and can move with it to grind the side of the workpiece. The fitting component 4 is mounted on the moving frame 2. The fitting component 4 can drive the grinding belt 3 to fit and closely adhere to the outer wall of the workpiece, forming a wrapping contact and grinding state. The compensating grinding component 5 is mounted on the moving frame 2. The compensating grinding component 5 can apply pressure to the grinding belt 3 closely adhering to the outer wall of the workpiece, so that the grinding belt 3 can compensate for the irregular outer wall of the workpiece and ensure uniform grinding. The cooling component 6 is mounted on the moving frame 2. The cooling component 6 can cool the workpiece to prevent the temperature of the workpiece grinding position from rising and causing the workpiece to burn.

[0024] like Figures 1-3As shown, a fixed chuck 11 is rotatably mounted on the processing table 1, and a movable chuck 12 that cooperates with the fixed chuck 11 is slidably mounted on the processing table 1. The movable chuck 12 can slide back and forth along the processing table 1, approaching or moving away from the fixed chuck 11. The fixed chuck 11 and the movable chuck 12 can clamp and limit the workpiece, and then drive the workpiece to rotate on a fixed axis.

[0025] The movable frame 2 is located on one side of the processing table 1 and can reciprocate along the axial direction of the clamped workpiece. A grinding frame 21 is slidably mounted on the movable frame 2, located on one side of the workpiece, and can reciprocate to move closer to or away from the workpiece. A grinding belt 3 can be fitted onto the grinding frame 21 and can move synchronously with the grinding frame 21. When the grinding belt 3 approaches the workpiece, it grinds the surface of the workpiece. A control unit (not shown in the figure) is provided on the movable frame 2, which can drive the grinding frame 21 to reciprocate along the movable frame 2.

[0026] like Figures 2-6 As shown, the bonding assembly 4 includes bonding frames 41 rotatably mounted on the grinding frame 21. Two sets of bonding frames 41 are symmetrically arranged inside the grinding frame 21. A gear set 411 is provided on one side of each bonding frame 41, and a first driving device 42 is provided on the outer side of the grinding frame 21. The output end of the first driving device 42 is connected to the gear set 411, allowing the first driving device 42 to control the gear set 411 to drive the two sets of bonding frames 41 to rotate in opposite directions. A bonding block 43 is slidably mounted on the side of the bonding frame 41 away from the gear set 411. The bonding block 43 is located on the side of the two sets of bonding frames 41 that are close to each other. A first elastic element 431 is connected to one side of the bonding block 43, and the other end of the first elastic element 431 is connected to the bonding frame 41. The first elastic element 431 is used to keep the bonding block 43 in a fixed position on the bonding frame 41 when no external force is applied. In this embodiment, the first elastic element 431 is a spring. A floating roller 432 is rotatably mounted on the bonding block 43. The floating roller 432 is located on the side of the two bonding blocks 43 that are close to each other. A bonding roller 44 is rotatably mounted on the bonding frame 41. The bonding roller 44 is located on the side of the two bonding frames 41 that are far apart from each other. When the grinding belt 3 is working, it can contact the floating roller 432 and the bonding roller 44.

[0027] A drive roller 45 is installed inside the grinding frame 21, and a second drive device 451 is installed on the outside of the grinding frame 21. The output end of the second drive device 451 is connected to the drive roller 45, and the drive roller 45 can be rotated on a fixed axis by the second drive device 451. A compensation frame 46 is slidably installed inside the grinding frame 21, and the compensation frame 46 is located above the drive roller 45. When the compensation frame 46 moves, it can move closer to or away from the drive roller 45. A second elastic element 461 is installed on the compensation frame 46, and the other end of the second elastic element 461 is connected to the grinding frame 21. The second elastic element 461 is used to keep the compensation frame 46 in a fixed position inside the grinding frame 21 when no external force is applied. In this embodiment, the second elastic element 461 is set as a spring, and the elastic force of the second elastic element 461 is less than the elastic force of the first elastic element 431. A compensation roller 462 is rotatably installed on the compensation frame 46, and the compensation frame 46 can drive the compensation roller 462 to move synchronously. When installing the grinding belt 3, the grinding belt 3 is placed on the grinding frame 21, and the inner non-grinding surface of the grinding belt 3 is made to contact the compensating roller 462, the driving roller 45, the bonding roller 44 and the floating roller 432 respectively, and is placed on the outside of each roller. At this time, the compensating roller 462 contacts the grinding belt 3 and first compresses the second elastic element 461, so that the fixed length of the grinding belt 3 can be installed on the grinding frame 21.

[0028] During operation, the grinding belt 3 is first installed on the grinding frame 21. Since the elastic force of the second elastic element 461 is less than that of the first elastic element 431, the second elastic element 461 is compressed first to adapt to the length of the grinding belt 3. At this time, the grinding belt 3 between the two sets of floating rollers 432 is stretched to a flat state. Then, the first driving device 42 drives the two sets of bonding frames 41 to rotate in opposite directions, adjusting the distance between the two sets of floating rollers 432, thereby adjusting the length of the grinding belt 3 between the two sets of floating rollers 432, so that the grinding belt 3 between the two sets of floating rollers 432 can adapt to the workpiece size and fit against it. Next, the grinding frame 21 is controlled to move and approach the workpiece, so that the grinding belt 3 between the two sets of floating rollers 432 first contacts the workpiece and gradually fits against the outer surface of the workpiece. At this time, the length of the grinding belt 3 between the two sets of floating rollers 432 increases, and the second elastic element 461 continues to compress, causing the compensating roller 462 to gradually approach the driving roller 45, used to compensate for the grinding belt 3 and keep it in a taut state. The movement of the grinding frame 21 continues until the floating roller 432 presses the grinding belt 3 onto the workpiece and squeezes the bonding block 43 to slide, causing the first elastic element 431 to be compressed.

[0029] Two sets of floating rollers 432 press the grinding belt 3 against the workpiece surface, creating an envelope contact area between the two sets of floating rollers 432 that matches the outer surface of the workpiece. This transforms the grinding force from traditional line or point contact to surface contact, forming a uniformly distributed contact pressure field on the workpiece surface. On one hand, this reduces local contact stress, preventing over-grinding or uneven grinding caused by pressure concentration. On the other hand, it improves the adhesion stability between the grinding belt 3 and the workpiece, ensuring continuous contact even when the workpiece vibrates or its surface morphology changes, thus improving the stability of the grinding process and the surface finish. Under the action of the first elastic element 431, the floating rollers 432 can undergo slight displacements according to changes in the workpiece's shape, ensuring the grinding belt 3 remains in continuous contact with the workpiece surface, thereby achieving adaptive following of changes in the surface morphology of the round steel.

[0030] like Figures 4-5 and Figures 7-8 As shown, the compensating polishing assembly 5 includes a lower pressure frame 51 slidably disposed inside the polishing frame 21. The lower pressure frame 51 is disposed between two sets of bonding frames 41 and can reciprocate along the interior of the polishing frame 21, moving closer to or away from the polishing belt 3. A third elastic element 511 is disposed on the lower pressure frame 51, and the other end of the third elastic element 511 is connected to the polishing frame 21. In this embodiment, the third elastic element 511 is configured as a spring. Auxiliary frames 52 are disposed on both sides of the lower pressure frame 51 near the bonding frames 41. The auxiliary frames 52 are slidably disposed on the polishing frame 21. A mounting block 521 is slidably disposed on the side of the auxiliary frame 52 near the polishing belt 3. A fourth elastic element 522 is connected to the mounting block 521, and the other end of the fourth elastic element 522 is connected to the auxiliary frame 52. The elastic force of the fourth elastic element 522 is less than the elastic force of the third elastic element 511. In this embodiment, the fourth elastic element 522 is configured as a spring. Both sides of the lower pressure frame 51 and the auxiliary frame 52 are provided with sliding columns 53. Inside the grinding frame 21, there is a guide rod 531 that slides with the sliding column 53. The guide rod 531 can rotate along a fixed axis inside the grinding frame 21. When the guide rod 531 rotates, it can cause the lower pressure frame 51 and the auxiliary frame 52 to move in opposite directions. The main pressure roller 512 is rotatably arranged on the side of the lower pressure frame 51 near the grinding belt 3, and the auxiliary roller 523 is rotatably arranged on the side of the mounting block 521 near the grinding belt 3. The main pressure roller 512 and the auxiliary roller 523 have the same diameter and are smaller than the diameter of the floating roller 432. The main pressure roller 512 and the auxiliary roller 523 can approach the grinding belt 3 and contact the non-grinding surface of the grinding belt 3.

[0031] The lower press frame 51 is equipped with a sensor 513, which can be configured as a magnetic induction displacement sensor. The grinding frame 21 is equipped with an indicator plate 514 that works in conjunction with the sensor 513. When the lower press frame 51 slides back and forth along the inside of the grinding frame 21, the sensor 513 and the indicator plate 514 always correspond to each other. The displacement of the lower press frame 51 can be monitored through the indicator plate 514.

[0032] During operation, the grinding frame 21 approaches the workpiece and presses the grinding belt 3 against it. As the grinding frame 21 continues to move, the auxiliary roller 523 first contacts the grinding belt 3 and compresses the fourth elastic element 522. The auxiliary roller 523 then presses the grinding belt 3 at this position onto the workpiece surface, providing initial pressure on the grinding belt 3. Subsequently, the main pressure roller 512 contacts the grinding belt 3 and compresses the third elastic element 511. When the lower pressure frame 51 moves, the guide rod 531 drives the auxiliary frame 52 to move in the opposite direction, further compressing the fourth elastic element 522. The movement stops when the indicator plate 514 detects that the lower pressure frame 51 has moved a specified length. At this point, the first elastic element 431 is compressed, and the end faces of the lower pressure frame 51 and the auxiliary frame 52 away from the workpiece remain flush. The floating roller 432 constrains the covering state of the grinding belt 3, so that the grinding belt 3 forms a stable contact shape on the workpiece surface. This provides the basic conditions for the main pressure roller 512 and the auxiliary roller 523 to adjust the pressure in local areas, thereby achieving the synergistic effect of overall uniform grinding and local fine adjustment.

[0033] Because the diameters of the main pressure roller 512 and the auxiliary roller 523 are smaller than those of the floating roller 432, they can better fit the workpiece and detect surface defects. When a depression appears on the workpiece surface, the depressed area first contacts the auxiliary roller 523 on one side and enters the working area of ​​the main pressure roller 512. As the main pressure roller 512 moves to the depressed position, the lower pressure frame 51, under the action of the third elastic element 511, drives the main pressure roller 512 to move closer to the workpiece, thereby causing the grinding belt 3 to be locally pressed into the depressed area and produce corresponding deformation, so as to achieve effective grinding of the depressed area. At this time, the auxiliary roller 523 is at the edge of the depressed area. While the lower pressure frame 51 moves, the auxiliary frame 52 moves in the opposite direction through the guide rod 531. The compression of the fourth elastic element 522 decreases, which reduces the force of the auxiliary roller 523 pressing down on the grinding belt 3, thereby reducing the force of the auxiliary roller 523 driving the grinding belt 3 to grind the edge of the depression, and avoiding excessive grinding of the edge of the depression after the grinding belt 3 is deformed by force.

[0034] When a protrusion appears on the workpiece surface, the main pressure roller 512 moves to the protruding position. The grinding belt 3 is locally lifted under the pushing action of the protrusion, causing the main pressure roller 512 to shift away from the workpiece. This further compresses the third elastic element 511, generating a larger reaction force at that position to enhance the grinding effect on the protruding area. During the movement of the lower pressure frame 51, the guide rod 531 drives the auxiliary frame 52 to move closer to the grinding belt 3, increasing the compression of the fourth elastic element 522. This increases the downward pressure of the auxiliary roller 523 on the grinding belt 3, allowing the grinding belt 3 to effectively adhere to the edges of the protrusion, expanding the contact area and improving the grinding effect on the protruding edges.

[0035] like Figures 8-11As shown, the cooling component 6 includes an air duct 61 mounted on the grinding frame 21. The air duct 61 is used to connect to an external air source. An internal cavity is provided in the air duct 61. A control plate 62 is slidably mounted on the air duct 61. A sealing block 621 is provided on one side of the control plate 62. The sealing block 621 penetrates the air duct 61 and can slide to seal the internal cavity of the air duct 61, allowing air to pass through when the internal cavity of the air duct 61 is open. A fifth elastic element 622 is provided on one side of the control plate 62, and the other end of the fifth elastic element 622 is connected to the air duct 61. When the grinding frame 21 stops moving and the grinding belt 3 starts working, the lower pressure frame 51 and the auxiliary frame 52 simultaneously contact the side of the control plate 62. At this time, the control plate 62 moves a certain distance towards the air duct 61, and the fifth elastic element 622 is compressed accordingly, causing the internal cavity of the air duct 61 to open to a certain size under the action of the sealing block 621. In this embodiment, the fifth elastic element 622 is a spring. The air passage 61 passes through the grinding frame 21 and extends to the outside of the grinding frame 21. Multiple sets of air blowing holes 611 are opened on the side of the air passage 61 near the workpiece, and the air blowing holes 611 face the grinding position of the grinding belt 3. During grinding, the internal cavity of the air passage 61 opens to a certain size, and the air entering the cavity is blown out from the air blowing holes 611, which can cool down the grinding position.

[0036] During operation, when the workpiece surface is smooth and without defects, the lower pressure frame 51 and auxiliary frame 52 remain relatively stable, the position of the control plate 62 remains unchanged, and the cavity opening size is constant. At this time, the amount of air blown out through the air blowing hole 611 remains constant, providing basic cooling to the grinding area and ensuring the stability of the grinding process. If a depression or protrusion appears on the workpiece surface, due to the change in local contact state, the lower pressure frame 51 or auxiliary frame 52 is displaced and pushes the control plate 62 towards the air passage 61. At this time, the sealing block 621 gradually moves out of the cavity of the air passage 61 as the control plate 62 moves, thereby increasing the cavity opening, increasing the gas flow rate, and strengthening the airflow ejected from the air blowing hole 611, thus enhancing the cooling of the grinding area. Through this structure, the air blowing volume can be automatically adjusted according to the change in contact state during the grinding process, thereby ensuring normal grinding stability while providing targeted cooling to local high-temperature areas, effectively avoiding surface burns or deterioration in processing quality caused by local overheating, and improving grinding uniformity and processing stability.

[0037] like Figure 2 and Figures 10-11As shown, a spray pipe 7 is installed inside the grinding frame 21. A spray head 71 is provided on the side of the spray pipe 7 near the workpiece, which can introduce cooling water into the spray pipe 7 and spray it out from the spray head 71 to cool the grinding position. Multiple cleaning holes 612 are provided on the side of the air passage 61 away from the air blowing hole 611. The cleaning holes 612 face the grinding surface of the grinding belt 3 and are connected to the internal cavity of the air passage 61. A control valve 613 is provided on the air passage 61, and the control valve 613 is located on the outside of the grinding frame 21 near the cleaning hole 612. The control valve 613 can control the connection or closure of the cleaning hole 612 and the internal cavity of the air passage 61.

[0038] If the indicator plate 514 detects that the lower pressure frame 51 moves too far during grinding, it indicates that the contact state between the grinding belt 3 and the workpiece surface has changed, and the contact pressure or contact time in a local area has increased, which can easily lead to an aggravated temperature rise in the grinding area. At this time, coolant is introduced into the spray pipe 7, and the grinding position is sprayed and cooled through the spray head 71 to reduce the local temperature and avoid damage to the workpiece surface due to overheating. At the same time, during the above-mentioned change in contact state, the grinding surface of the grinding belt 3 is prone to adhering with more grinding debris and impurities, thus affecting the grinding effect. By opening the control valve 613, part of the airflow in the air passage 61 is blown through the cleaning hole 612 onto the grinding surface of the grinding belt 3 to clean it, thereby reducing the accumulation of impurities and improving grinding stability and surface quality.

Claims

1. A metal material grinding device, comprising: The machining table (1) and the movable frame (2) slidably disposed on the machining table (1), wherein a grinding frame (21) is slidably disposed on the movable frame (2), characterized in that a grinding belt (3) is disposed on the grinding frame (21), and further comprising: The bonding assembly (4) includes two sets of bonding frames (41) rotatably mounted on the grinding frame (21). The two sets of bonding frames (41) are arranged opposite to each other. A bonding block (43) is slidably mounted on the bonding frame (41), and a floating roller (432) is rotatably mounted on the bonding block (43). The compensating grinding assembly (5) includes a lower pressure frame (51) that is slidably disposed inside the grinding frame (21). The lower pressure frame (51) is located between two sets of bonding frames (41). Auxiliary frames (52) are respectively disposed on both sides of the lower pressure frame (51). A main pressure roller (512) is rotatably disposed on the lower pressure frame (51), and an auxiliary roller (523) is rotatably disposed on the auxiliary frame (52). The diameters of the main pressure roller (512) and the auxiliary roller (523) are the same and smaller than the diameter of the floating roller (432). Cooling component (6), cooling component (6) includes air passage (61) set on grinding frame (21), air passage (61) is used to connect to external air source, control plate (62) is slidably set on air passage (61), sealing block (621) for opening and closing the internal cavity of air passage (61) is set on one side of control plate (62), gear set (411) is set on one side of bonding frame (41), first drive device (42) is set on the outside of grinding frame (21) that can control gear set (411) to drive two bonding frames (41) to rotate in opposite directions. The bonding block (43) is located on the side of the bonding frame (41) away from the gear set (411), and the bonding block (43) is located on the side of the two bonding frames (41) close to each other. A first elastic element (431) is connected to one side of the bonding block (43), and the other end of the first elastic element (431) is connected to the bonding frame (41). The first elastic element (431) is set as a spring. The floating roller (432) is located on the side of the two bonding blocks (43) close to each other. A bonding roller (44) is rotatably mounted on the bonding frame (41). The bonding roller (44) is located on the side of the two bonding frames (41) close to each other. On the side away from the bonding frame (41), the lower pressing frame (51) is provided with a third elastic element (511), the other end of the third elastic element (511) is connected to the grinding frame (21), and the third elastic element (511) is set as a spring. The auxiliary frame (52) is slidably set on the grinding frame (21). The auxiliary frame (52) is slidably set with a mounting block (521) on the side of the auxiliary frame (52) near the grinding belt (3). A fourth elastic element (522) is connected to the mounting block (521), and the other end of the fourth elastic element (522) is connected to the auxiliary frame (52). The elastic force of (522) is less than that of the third elastic element (511). The fourth elastic element (522) is set as a spring. The lower pressure frame (51) and the auxiliary frame (52) are both provided with sliding columns (53). The grinding frame (21) is provided with a guide rod (531) that slides with the sliding column (53). The guide rod (531) can rotate along the fixed axis inside the grinding frame (21). The lower pressure frame (51) is provided with a sensing element (513). The grinding frame (21) is provided with an indicator plate (514) that works with the sensing element (513).

2. The metal material grinding device according to claim 1, characterized in that: The grinding frame (21) is equipped with a drive roller (45) inside. A second drive device (451) capable of controlling the fixed-axis rotation of the drive roller (45) is provided on the outside of the grinding frame (21). A compensation frame (46) is slidably provided inside the grinding frame (21). The compensation frame (46) is located above the drive roller (45). A second elastic element (461) is provided on the compensation frame (46). The other end of the second elastic element (461) is connected to the grinding frame (21). The second elastic element (461) is set as a spring, and the elastic force of the second elastic element (461) is less than the elastic force of the first elastic element (431). A compensation roller (462) is rotatably provided on the compensation frame (46).

3. The metal material grinding device according to claim 2, characterized in that: The sealing block (621) passes through the air passage (61) and can slide to seal the internal cavity of the air passage (61). A fifth elastic element (622) is provided on one side of the control plate (62). The other end of the fifth elastic element (622) is connected to the air passage (61). At least one of the lower pressure frame (51) and the auxiliary frame (52) can contact the side of the control plate (62). The air passage (61) passes through the grinding frame (21) and extends to the outside of the grinding frame (21). Multiple sets of air blowing holes (611) are opened on the side of the air passage (61) near the workpiece. The air blowing holes (611) face the grinding position of the grinding belt (3). The fifth elastic element (622) is set as a spring.

4. The metal material grinding device according to claim 3, characterized in that: The grinding frame (21) is equipped with a spray pipe (7) inside. The spray pipe (7) is equipped with a spray head (71) on the side close to the workpiece. The air passage (61) is equipped with multiple sets of cleaning holes (612) on the side away from the air blowing hole (611). The cleaning holes (612) face the grinding surface of the grinding belt (3). The cleaning holes (612) are connected to the internal cavity of the air passage (61). The air passage (61) is equipped with a control valve (613).

5. The metal material grinding device according to claim 1, characterized in that: A fixed chuck (11) is rotatably mounted on the processing table (1), and a movable chuck (12) that cooperates with the fixed chuck (11) is slidably mounted on the processing table (1). A control unit that can drive the grinding frame (21) to reciprocate along the movable frame (2) is mounted on the moving frame (2).

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