A machining line and machining method for grinding, deburring and straightening a steel-aluminum composite strip

Abstract

The application relates to the technical field of composite material processing equipment, in particular to a processing line and a processing method for grinding, deburring and straightening of a steel-aluminum composite strip. The processing line comprises a front straightening mechanism, a feeding mechanism, a grinding mechanism, a deburring mechanism and a rear straightening mechanism which are sequentially arranged along a straight line. The grinding mechanism is provided with two spaced-apart grinding wheels, the grinding wheels are CBN grinding wheels, the height of the center of the grinding surface of the grinding wheel is lower than the center height of the steel-aluminum composite material, and the grinding wheel rotates along the conveying direction of the steel-aluminum composite material. The application can realize synchronous processing of grinding, deburring and straightening of the steel-aluminum composite strip, and solve the problems of large resistance, strong vibration, low efficiency and poor size precision of the grinding wheel under the premise of high speed and large grinding amount.

Description

Technical Field

[0001] This application relates to the field of composite material processing equipment technology, and in particular to a processing line and processing method for grinding, deburring and straightening steel-aluminum composite strips. Background Technology

[0002] As a processing object in the mechanical manufacturing process, steel-aluminum composite strips need to be ground on both long side walls using a high-speed rotating grinding wheel. Since the product to be processed is a steel-aluminum composite material, the grinding process requires grinding both steel and aluminum simultaneously. Steel is hard, while aluminum is soft and easily sticks to the grinding wheel. Under the conditions of high speed and large grinding volume, the grinding wheel experiences very high resistance, strong vibration, and low efficiency.

[0003] Furthermore, the edges of the steel-aluminum composite strip are very sharp after grinding and have many burrs, so deburring is still required. Also, the steel-aluminum composite strip is prone to stress deformation due to the grinding force of the grinding wheel during grinding, so straightening is also necessary. Typically, grinding, deburring, and straightening of steel-aluminum composite strips are performed on different devices or equipment, which is quite cumbersome.

[0004] Therefore, there is a need for equipment that can simultaneously perform grinding, deburring, and straightening of steel-aluminum composite strips, and to solve the problems of high resistance, strong vibration, low efficiency, and poor dimensional accuracy of the grinding wheel under high speed and large grinding volume conditions. Summary of the Invention

[0005] In order to achieve simultaneous grinding, deburring and straightening of steel-aluminum composite strips, and to solve the problems of high resistance, strong vibration and low efficiency of grinding wheels under high speed and large grinding volume, this application provides a processing line and processing method for grinding, deburring and straightening of steel-aluminum composite strips.

[0006] Firstly, this application provides a processing line for grinding, deburring, and straightening steel-aluminum composite strips, employing the following technical solution:

[0007] A grinding device for steel-aluminum composite strips includes a front straightening mechanism, a feeding mechanism, a grinding mechanism, a deburring mechanism, and a rear straightening mechanism arranged sequentially along a straight direction. The front straightening mechanism is used to straighten the unground steel-aluminum composite strip and convey it to the feeding mechanism. The feeding mechanism is used to feed the straightened steel-aluminum composite strip into the grinding mechanism, the deburring mechanism, and the rear straightening mechanism in sequence. The grinding mechanism is equipped with two spaced-apart grinding wheels, which are used to grind the two long sidewalls of the steel-aluminum composite strip respectively. The deburring mechanism removes burrs from the ground steel-aluminum composite strip. The rear straightening mechanism is used to straighten the ground steel-aluminum composite strip and convey it out of the device.

[0008] The grinding wheel is a CBN grinding wheel, and the center height of the grinding surface of the grinding wheel is lower than the center height of the steel-aluminum composite material. The grinding wheel rotates in the conveying direction of the steel-aluminum composite material.

[0009] Preferably, the feeding mechanism includes a first driving roller, a first driven roller, a first belt, a second driving roller, a second driven roller, and a second belt. The first belt is tensioned on the first driving roller and the first driven roller, and the second belt is tensioned on the second driving roller and the second driven roller. The first belt and the second belt are spaced apart, and the first belt and the second belt are used to contact and convey the steel-aluminum composite strip.

[0010] Preferably, the outer circumferential walls of the first driving roller and the first driven roller are provided with a first groove around the axis, the first groove being for the first belt to be inserted; the outer circumferential walls of the second driving roller and the second driven roller are provided with a second groove around the axis, the second groove being for the second belt to be inserted.

[0011] Preferably, the grinding wheel is provided with fixing plates at both the front and rear, and an upper limit guide plate and a lower limit guide plate are connected between the fixing plates. The upper limit guide plate and the lower limit guide plate are spaced apart vertically and the gap allows the steel-aluminum composite strip to pass through.

[0012] Preferably, an upper gasket is provided between the upper limit guide plate and the fixed plate, and a lower gasket is provided between the lower limit guide plate and the fixed plate.

[0013] Preferably, the deburring mechanism includes a wire brush wheel, a brush wheel motor, and a lead screw assembly. The wire brush wheel is fixedly connected to the output shaft of the brush wheel motor, and the wire brush wheel is coaxial with the output shaft of the brush wheel motor.

[0014] The lead screw assembly includes a top plate, a bottom plate, a lifting plate, a lead screw, and a first guide rod. The top plate and the bottom plate are vertically spaced apart. The first guide rod is vertically fixed between the top plate and the bottom plate. The lead screw is vertically rotatably disposed between the top plate and the bottom plate. The lifting plate is threadedly connected to the lead screw. The first guide rod passes through the lifting plate. The brush wheel motor is mounted on the lifting plate.

[0015] A handwheel is connected to the end of the lead screw.

[0016] Preferably, a pressure assembly is provided above the deburring mechanism. The pressure assembly contacts the top of the steel-aluminum composite strip during the deburring process. The pressure assembly includes a pressure wheel, a wheel seat, an L-shaped frame, and an adjusting screw. The L-shaped frame includes a vertical plate and a horizontal plate connected in an L-shape. The vertical plate is fixed to one side of the top plate of the screw assembly, and the horizontal plate is fixed to the top of the vertical plate. The wheel seat includes an inverted U-shaped fixing block, a second guide rod, and a connecting block. The pressure wheel is horizontally rotatably disposed within the fixing block. The pressure wheel is located directly above the wire brush wheel and is used to contact the top of the steel-aluminum composite strip. Two second guide rods are provided. Both second guide rods are vertically fixed to the top of the fixing block. The upper ends of both second guide rods pass upward through the horizontal plate and are connected to the same connecting block. The adjusting screw is threadedly connected to the connecting block.

[0017] Secondly, a processing method for steel-aluminum composite strips, employing the aforementioned processing line for grinding, deburring, and straightening of steel-aluminum composite strips, includes the following steps:

[0018] S1: The steel-aluminum composite strip to be processed is placed in the front straightening mechanism to begin the initial straightening;

[0019] S2: After initial straightening, the front straightening mechanism transmits the steel-aluminum composite strip to the feeding mechanism, which then transmits it to the grinding mechanism. The grinding mechanism grinds the long sidewalls of both sides of the steel-aluminum composite strip.

[0020] S3: After grinding, the steel-aluminum composite strip is conveyed to the deburring section for deburring.

[0021] S4: After the burrs are removed, the steel-aluminum composite strip is conveyed to the rear straightening mechanism for secondary straightening.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The grinding, deburring, front straightening and rear straightening mechanisms can achieve simultaneous grinding, deburring and straightening of steel-aluminum composite strips.

[0024] 2. The CBN grinding wheel is divided into a soft grinding material zone and a hard grinding material zone (i.e., the CBN area) from the inside out. The soft grinding material zone corresponds to the aluminum part of the steel-aluminum composite strip. The hardness of the soft grinding material zone is lower than that of the hard grinding material zone. The CBN area is mainly used to grind the steel-aluminum composite strip. The hardness difference between the inner and outer rings of the grinding wheel is used to offset the difference in grinding wear between the inner and outer rings, thereby reducing the vibration generated during the grinding process. This solves the problems of high grinding wheel wear, high resistance on the grinding wheel, strong vibration and low efficiency under the premise of high speed and large grinding volume.

[0025] 3. At the moment the steel-aluminum composite strip contacts the grinding wheel, the rotating grinding wheel acts on the steel-aluminum composite strip and causes it to move upward and forward. Before the steel-aluminum composite strip leaves the grinding wheel, the rotating grinding wheel causes the steel-aluminum composite strip to move downward and forward. This means that the grinding wheel will drive the steel-aluminum composite strip forward throughout the grinding process, thereby reducing the resistance encountered by the steel-aluminum composite strip during the grinding process and making it easier to transmit the steel-aluminum composite strip forward. Attached Figure Description

[0026] Figure 1 This is an overall structural diagram of the grinding equipment in the embodiments of this application;

[0027] Figure 2 This is an embodiment of the present application. Figure 1 Another perspective view;

[0028] Figure 3 This is a partial structural schematic diagram of the feeding mechanism and grinding mechanism in the embodiments of this application;

[0029] Figure 4 This is a schematic diagram of the deburring mechanism and pressing assembly in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Front straightening mechanism; 11. First roller shaft; 2. Feeding mechanism; 21. First driving roller; 22. First driven roller; 23. First belt; 24. Second driving roller; 25. Second driven roller; 26. Second belt; 3. Grinding mechanism; 31. Grinding wheel; 4. Deburring mechanism; 41. Wire brush wheel; 42. Brush wheel motor; 43. Top plate; 44. Bottom plate; 45. Lifting plate; 4 6. Lead screw; 47. First guide rod; 48. Pulley; 49. Adjusting bearing; 410. Handwheel; 5. Rear straightening mechanism; 51. Second roller; 61. Fixed plate; 62. Upper limit guide plate; 63. Upper shim; 64. Lower limit guide plate; 65. Lower shim; 71. Pressure roller; 72. Fixed block; 73. Second guide rod; 74. Connecting block; 75. Vertical plate; 76. Horizontal plate; 77. Adjusting screw. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0034] This application discloses a processing line for grinding, deburring, and straightening steel-aluminum composite strips, as described in the embodiments below. Figure 1 and Figure 2 The processing line includes a front straightening mechanism 1, a feeding mechanism 2, a grinding mechanism 3, a deburring mechanism 4, and a rear straightening mechanism 5, all arranged sequentially along a straight line. In this embodiment, the processing line is used to process steel-aluminum composite strips with a length ≥ 3M. The front straightening mechanism 1 straightens the unground steel-aluminum composite strip and conveys it to the feeding mechanism 2 to provide steel-aluminum composite strips with acceptable straightness before grinding. The feeding mechanism 2 sequentially feeds the straightened steel-aluminum composite strips into the grinding mechanism 3, the deburring mechanism 4, and the rear straightening mechanism 5. The grinding mechanism 3 is equipped with two spaced-apart grinding wheels 31, which grind the long sidewalls of the steel-aluminum composite strips on both sides. The deburring mechanism 4 removes burrs from the ground steel-aluminum composite strips. The rear straightening mechanism 5 straightens the ground steel-aluminum composite strips and conveys them out of the equipment to provide steel-aluminum composite strips with acceptable straightness after processing.

[0035] Specifically, refer to Figure 1 and Figure 2 The front straightening mechanism 1 includes multiple first rollers 11, which are grouped in pairs and arranged horizontally. In the front half of the front straightening mechanism 1, the first rollers 11 in the same group are vertically spaced, while in the rear half, they are horizontally spaced. The multiple first rollers 11 rotate synchronously via a gear structure and a motor. The rear straightening mechanism 5 includes multiple second rollers 51, which are grouped in pairs and arranged horizontally. The second rollers 51 in the same group are vertically spaced, and they also rotate synchronously via a gear structure and a motor. The structure and principle of the front straightening mechanism 1 and the rear straightening mechanism 5 are existing technologies and will not be described in detail here.

[0036] Reference Figure 3The feeding mechanism 2 includes a first driving roller 21, a first driven roller 22, a first belt 23, a second driving roller 24, a second driven roller 25, and a second belt 26. The diameters of the first driving roller 21, the first driven roller 22, the second driving roller 24, and the second driven roller 25 are equal, and their axes are all vertical. Both the first driving roller 21 and the second driving roller 24 are connected to a feeding motor. The first driving roller 21 and the first driven roller 22 are spaced apart along the conveying direction of the steel-aluminum composite strip. The first belt 23 is tensioned on the first driving roller 21 and the first driven roller 22. The outer circumference of both the first driving roller 21 and the first driven roller 22 has a first groove around its axis, into which the first belt 23 is inserted. The second driving roller 24 and the second driven roller 25 are spaced apart along the conveying direction of the steel-aluminum composite strip. The second belt 26 is tensioned on the second driving roller 24 and the second driven roller 25. The outer circumferential walls of the second driving roller 24 and the second driven roller 25 are provided with second grooves around their axes for the second belt 26 to be inserted into. The first belt 23 is spaced apart from the second belt 26 and is used to contact and convey the steel-aluminum composite strip. The first groove and the second groove respectively ensure the stable movement of the first belt 23 and the second belt 26.

[0037] Reference Figure 3 The grinding surfaces of the two grinding wheels 31 face each other, and both grinding wheels 31 are connected to grinding wheel motors. The grinding surfaces of the two grinding wheels 31 are used to contact and grind the long sidewalls on both sides of the steel-aluminum composite strip. Both grinding wheels 31 are CBN grinding wheels. CBN grinding wheels have high hardness and strong grinding force. The grinding surface of the CBN grinding wheel is divided into two zones radially, from the inside to the outside: a soft abrasive material zone and a hard abrasive material zone (i.e., the CBN area). The hardness of the soft abrasive material zone is lower than that of the hard abrasive material zone. The CBN area is mainly used to grind the steel-aluminum composite strip. The hardness difference between the inner and outer rings of the grinding wheel grinding surface is used to offset the difference in grinding wear between the inner and outer rings, thereby reducing the vibration generated during the grinding process. This solves the problems of high grinding wheel wear, high resistance on the grinding wheel, strong vibration, and low efficiency under high speed and large grinding volume conditions.

[0038] Furthermore, refer to Figure 3 The center height of the grinding wheel 31 is lower than the center height of the steel-aluminum composite strip. The grinding wheel 31 rotates in the conveying direction of the steel-aluminum composite strip, so that at the moment the steel-aluminum composite strip contacts the grinding wheel 31, the rotating grinding wheel 31 will act on the steel-aluminum composite strip and make it move upward and forward. Before the steel-aluminum composite strip leaves the grinding wheel 31, the rotating grinding wheel 31 will make the steel-aluminum composite strip move downward and forward. This means that the grinding wheel 31 will drive the steel-aluminum composite strip forward throughout the grinding process, thereby reducing the resistance encountered by the steel-aluminum composite strip during the grinding process and making it easier to convey the steel-aluminum composite strip forward.

[0039] Reference Figure 3The grinding wheel 31 is equipped with fixing plates 61 at both the front and rear. An upper limit guide plate 62 and a lower limit guide plate 64 are connected between the fixing plates 61. The upper limit guide plate 62 and the lower limit guide plate 64 are spaced apart vertically with a gap to allow the steel-aluminum composite strip to pass through. The upper limit guide plate 62 restricts the steel-aluminum composite strip from swinging upward, and the lower limit guide plate 64 restricts the steel-aluminum composite strip from swinging downward. An upper shim 63 is provided between the upper limit guide plate 62 and the fixing plate 61, and a lower shim 65 is provided between the lower limit guide plate 64 and the fixing plate 61. This ensures that the upper limit guide plate 62 and the lower limit guide plate 64 are kept at a sufficient distance from the fixing plate 61 while maintaining a relatively thin thickness, so as to allow the steel-aluminum composite strip to pass through and to provide a limiting reference for the left and right sides of the steel-aluminum composite strip.

[0040] Reference Figure 4 The deburring mechanism 4 is used to remove burrs from the steel-aluminum composite strip. Specifically, the deburring mechanism 4 includes a wire brush wheel 41, a brush wheel motor 42, and a lead screw 46 assembly. The wire brush wheel 41 is a disc with steel wire on its outer circumference. The wire brush wheel 41 is fixedly connected to the output shaft of the brush wheel motor 42. The wire brush wheel 41 and the output shaft of the brush wheel motor 42 are coaxial. The brush wheel motor 42 drives the wire brush wheel 41 to rotate horizontally along the conveying direction of the steel-aluminum composite strip, and the axial direction of the wire brush wheel 41 is perpendicular to the conveying direction of the steel-aluminum composite strip. The wire brush wheel 41 is located below the steel-aluminum composite strip. During deburring, the brush wheel motor 42 drives the wire brush wheel 41 to rotate, and the rotating wire brush wheel 41 performs deburring treatment on the steel-aluminum composite strip. The lead screw 46 assembly includes a top plate 43, a bottom plate 44, a lifting plate 45, lead screws 46, and first guide rods 47. The top plate 43 and the bottom plate 44 are vertically spaced apart. There are four first guide rods 47, all of which are vertically fixed between the top plate 43 and the bottom plate 44. There are two lead screws 46, which are vertically rotatably positioned between the top plate 43 and the bottom plate 44. The lifting plate 45 is threadedly connected to both lead screws 46. Both first guide rods 47 pass through the lifting plate 45. The brush wheel motor 42 is mounted on the lifting plate 45. A handwheel 410 is connected to the end of the lead screw 46. Furthermore, pulleys 48 are fixedly sleeved on the upper ends of both lead screws 46, and a third belt is tensioned between the two pulleys 48. At this time, by cranking the handwheel 410, the two lead screws 46 can be controlled to rotate synchronously, thereby controlling the lifting plate 45 to rise and fall, and in turn controlling the brush wheel motor 42 and the wire brush wheel 41 to rise and fall, so as to adjust the relative position of the wire brush wheel 41 and the steel-aluminum composite strip in the vertical direction. In addition, an adjusting bearing 49 is movably installed on the top plate 43. The adjusting bearing 49 rotates vertically and is located inside the third belt. The adjusting bearing 49 is used to adjust the tension of the third belt.

[0041] Reference Figure 4The deburring mechanism is also equipped with a pressing assembly. The pressing assembly contacts the top of the steel-aluminum composite strip during the deburring process. The pressing assembly includes a pressing wheel 71, a wheel seat, an L-shaped frame, and an adjusting screw 77. The L-shaped frame includes a vertical plate 75 and a horizontal plate 76 connected in an L-shape. The vertical plate 75 is fixed to one side of the top plate 43 of the screw 46 assembly, and the horizontal plate 76 is fixed to the top of the vertical plate 75. The wheel seat includes an inverted U-shaped fixing block 72, a second guide rod 73, and a connecting block 74. The pressing wheel 71 is horizontally rotatably set in the fixing block 72. The axis of the pressing wheel 71 is parallel to the axis of the wire brush wheel 41. The pressing wheel 71 is located directly above the wire brush wheel 41. The pressing wheel 71 is used to contact the top of the steel-aluminum composite strip. The gap between the pressing wheel 71 and the wire abrasive wheel 31 allows the steel-aluminum composite strip to pass through. The pressing wheel 71 can press the steel-aluminum composite strip tightly to prevent it from swinging upward. Two second guide rods 73 are provided, both of which are vertically fixed to the top of the fixing block 72. The upper ends of the two second guide rods 73 pass through the horizontal plate 76 and are connected to the same connecting block 74. The adjusting screw 77 is threadedly connected to the connecting block 74. Specifically, the adjusting screw 77 is screwed into the top of the connecting block 74 and threadedly connected to the connecting block 74. The lower end of the adjusting screw 77 is rotatably connected to the horizontal plate 76 of the L-shaped frame after passing through the connecting block 74. Therefore, when deburring, by rotating the adjusting screw 77, the pressure roller 71 can be vertically adjusted according to the thickness of the steel-aluminum composite strip.

[0042] The implementation principle of a processing line for grinding, deburring, and straightening steel-aluminum composite strips according to an embodiment of this application is as follows: the grinding mechanism 3, the deburring mechanism 4, the front straightening mechanism 1, and the rear straightening mechanism 5 can achieve simultaneous processing of grinding, deburring, and straightening of steel-aluminum composite strips. The CBN grinding wheel is divided into a soft grinding material zone and a hard grinding material zone (i.e., the CBN area) from the inside to the outside. The hardness of the soft grinding material zone is lower than that of the hard grinding material zone. The CBN area is mainly used to grind the steel-aluminum composite strip. The hardness difference between the inner and outer rings of the grinding wheel is used to offset the difference in grinding wear between the inner and outer rings, thereby reducing the vibration generated during the grinding process. This solves the problems of high grinding wheel wear, high resistance of the grinding wheel, strong vibration, and low efficiency under the premise of high speed and large grinding volume.

[0043] This application also discloses a processing method for steel-aluminum composite strips, comprising the following steps:

[0044] S1: The steel-aluminum composite strip to be processed is placed in the front straightening mechanism 1 and begins initial straightening under the action of the first roller 11 of the front straightening machine;

[0045] S2: After initial straightening, the front straightening mechanism 1 conveys the steel-aluminum composite strip to the feeding mechanism 2. The first belt 23 and the second belt 26 of the feeding mechanism 2 further convey the steel-aluminum composite strip to the grinding mechanism 3. The two CBN grinding wheels 31 of the grinding mechanism 3 grind the long side walls on both sides of the steel-aluminum composite strip. During this process, the upper shim 63 and the lower shim 64 of the two sets of limiting components are used to vertically limit the steel-aluminum composite strip.

[0046] S3: After grinding, the steel-aluminum composite strip is conveyed to the wire brush wheel 41 of the deburring mechanism 4 for deburring. During this process, the pressure wheel 71 of the pressure assembly contacts the top of the steel-aluminum composite strip to improve the stability of the steel-aluminum composite strip during the deburring process.

[0047] S4: After the burrs are removed, the steel-aluminum composite strip is conveyed to the rear straightening mechanism 5 and straightened a second time under the action of the second roller 51. Finally, it is conveyed outward under the transmission of the rear straightening mechanism 5.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing line for grinding, deburring, and straightening steel-aluminum composite strips, characterized in that, The system includes a front straightening mechanism (1), a feeding mechanism (2), a grinding mechanism (3), a deburring mechanism (4), and a rear straightening mechanism (5) arranged sequentially along a straight line. The front straightening mechanism (1) is used to straighten the unground steel-aluminum composite strip and convey it to the feeding mechanism (2). The feeding mechanism (2) is used to feed the straightened steel-aluminum composite strip sequentially into the grinding mechanism (3), the deburring mechanism (4), and the rear straightening mechanism (5). The grinding mechanism (3) is equipped with two spaced-apart grinding wheels (31). The two grinding wheels (31) are used to grind the long sidewalls of the steel-aluminum composite strip on both sides respectively. The deburring mechanism... Mechanism (4) removes burrs from the ground steel-aluminum composite strip. The post-straightening mechanism (5) is used to straighten the ground steel-aluminum composite strip and transmit it out of the equipment. The grinding wheel (31) is a CBN grinding wheel. The center height of the grinding surface of the grinding wheel (31) is lower than the center height of the steel-aluminum composite material. The grinding wheel (31) rotates in the conveying direction of the steel-aluminum composite material. The CBN grinding wheel is divided into a soft grinding material area and a hard grinding material area from the inside to the outside. The soft grinding material area corresponds to the aluminum part of the steel-aluminum composite strip. The hardness difference between the inner and outer rings of the grinding surface of the grinding wheel is used to offset the difference in grinding wear between the inner and outer rings, thereby reducing the vibration generated during the grinding process.

2. The processing line for grinding, deburring, and straightening steel-aluminum composite strips according to claim 1, characterized in that: The feeding mechanism (2) includes a first driving roller (21), a first driven roller (22), a first belt (23), a second driving roller (24), a second driven roller (25), and a second belt (26). The first belt (23) is tensioned on the first driving roller (21) and the first driven roller (22), and the second belt (26) is tensioned on the second driving roller (24) and the second driven roller (25). The first belt (23) and the second belt (26) are spaced apart, and the first belt (23) and the second belt (26) are used to contact and convey the steel-aluminum composite strip.

3. The processing line for grinding, deburring, and straightening steel-aluminum composite strips according to claim 2, characterized in that: The outer circumferential walls of the first driving roller (21) and the first driven roller (22) are provided with a first groove around the axis, and the first groove is for the first belt (23) to be inserted. The outer circumferential walls of the second driving roller (24) and the second driven roller (25) are provided with a second groove around the axis, and the second groove is for the second belt (26) to be inserted.

4. The processing line for grinding, deburring, and straightening steel-aluminum composite strips according to claim 1, characterized in that: The grinding wheel (31) is provided with fixing plates (61) at both the front and rear. An upper limit guide plate (62) and a lower limit guide plate (64) are connected between the fixing plates (61). The upper limit guide plate (62) and the lower limit guide plate (64) are spaced apart vertically and the gap allows the steel-aluminum composite strip to pass through.

5. A processing line for grinding, deburring, and straightening steel-aluminum composite strips according to claim 4, characterized in that: An upper gasket (63) is provided between the upper limit guide plate (62) and the fixing plate (61), and a lower gasket (65) is provided between the lower limit guide plate (64) and the fixing plate (61).

6. A processing line for grinding, deburring, and straightening steel-aluminum composite strips according to claim 1, characterized in that: The deburring mechanism (4) includes a wire brush wheel (41), a brush wheel motor (42), and a lead screw (46) assembly. The wire brush wheel (41) is fixedly connected to the output shaft of the brush wheel motor (42), and the wire brush wheel (41) is coaxial with the output shaft of the brush wheel motor (42). The lead screw (46) assembly includes a top plate (43), a bottom plate (44), a lifting plate (45), a lead screw (46), and a first guide rod (47). The top plate (43) and the bottom plate (44) are vertically aligned. The first guide rod (47) is vertically fixed between the top plate (43) and the bottom plate (44), the lead screw (46) is vertically rotatably disposed between the top plate (43) and the bottom plate (44), the lifting plate (45) is threadedly connected to the lead screw (46), the first guide rod (47) passes through the lifting plate (45), and the brush wheel motor (42) is mounted on the lifting plate (45); a handwheel (410) is connected to the end of the lead screw (46).

7. A processing line for grinding, deburring, and straightening steel-aluminum composite strips according to claim 6, characterized in that: A pressing assembly is provided above the deburring mechanism (4). The pressing assembly contacts the top of the steel-aluminum composite strip during the deburring process. The pressing assembly includes a pressing wheel (71), a wheel seat, an L-shaped frame, and an adjusting screw (77). The L-shaped frame includes a vertical plate (75) and a horizontal plate (76) connected in an L-shape. The vertical plate (75) is fixed to one side of the top plate (43) of the screw (46) assembly, and the horizontal plate (76) is fixed to the top of the vertical plate (75). The wheel seat includes an inverted U-shaped fixing block (72), a second guide rod (73), and a connecting block (74). The pressure roller (71) is horizontally rotatably disposed inside the fixed block (72). The pressure roller (71) is located directly above the wire brush wheel (41). The pressure roller (71) is used to contact the top of the steel-aluminum composite strip. Two second guide rods (73) are provided. Both second guide rods (73) are vertically fixed to the top of the fixed block (72). The upper ends of both second guide rods (73) pass through the horizontal plate (76) and are connected to the same connecting block (74). The adjusting screw (77) is threadedly connected to the connecting block (74).

8. A processing method for steel-aluminum composite strips, employing the grinding, deburring, and straightening processing line for steel-aluminum composite strips as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1: The steel-aluminum composite strip to be processed is placed in the front straightening mechanism (1) and the initial straightening begins; S2: After initial straightening, the front straightening mechanism (1) transmits the steel-aluminum composite strip to the feeding mechanism (2), and the feeding mechanism (2) further transmits the steel-aluminum composite strip to the grinding mechanism (3), and the grinding mechanism (3) grinds the long side walls on both sides of the steel-aluminum composite strip. S3: After grinding, the steel-aluminum composite strip is conveyed to the deburring mechanism (4) for deburring; S4: After the burrs are removed, the steel-aluminum composite strip is sent to the rear straightening mechanism (5) for secondary straightening.

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