An aluminum alloy bottom plate surface knurling machine and a method of using the same

Abstract

The application relates to the technical field of knurling machines, and discloses an aluminum alloy bottom plate surface knurling machine and a use method thereof, which comprises two support plates, a plurality of conveying rollers are rotationally installed between the two support plates at equal intervals, an aluminum alloy bottom plate is arranged above the plurality of conveying rollers, and two vertical plates are symmetrically and fixedly installed on the upper surfaces of the two support plates close to one end. The aluminum alloy has the characteristics of high temperature after being extruded and molded and no surface hardness, so that high-cost equipment and cutters are not needed, the equipment and maintenance costs are reduced, manual participation is reduced, the manual cost is reduced, the aluminum alloy bottom plate does not need to be cooled and hardened before being subjected to the knurling treatment in the online knurling method, the production cycle is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of knurling machine technology, and in particular to a knurling machine for aluminum alloy base plates and its usage method. Background Technology

[0002] During the production of aluminum alloy base plates, anti-slip features are required for later use. Therefore, anti-slip patterns need to be rolled onto the surface of the aluminum alloy base plates. The knurling treatment of the anti-slip surface is an important process.

[0003] Existing processing methods typically involve manually applying surface knurling or embossing using rolling or cutting equipment after the aluminum alloy base plate is manufactured. However, this method has several drawbacks: First, because the profile has already hardened after production, processing is difficult, requiring highly sophisticated equipment and cutting tools, thus increasing equipment investment and maintenance costs; second, the high degree of manual intervention not only increases labor costs but also results in low efficiency, making it difficult to meet the needs of large-scale production. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an aluminum alloy base plate surface knurling machine and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A knurling machine for an aluminum alloy base plate includes two support plates. Multiple transport rollers are rotatably mounted at equal intervals between the two support plates. An aluminum alloy base plate is positioned above the transport rollers. Two upright plates are symmetrically fixedly mounted on the upper surfaces of the two support plates near one end. Mounting plates are fixedly mounted on the tops of the two upright plates. A sliding groove is formed through the outer surface of each of the upright plates. A T-shaped slider is slidably mounted on the inner wall of the sliding groove. An embossing roller is rotatably mounted between the T-shaped sliders. A support roller is rotatably mounted between the two support plates, positioned directly below the embossing roller. The support roller has the same diameter as the transport roller. Limiting rings are fixedly mounted on the outer circumference of the support roller near both ends. The aluminum alloy base plate is positioned between two limiting rings. Multiple embossing teeth are equidistantly arranged on the outer circumference of the embossing roller, abutting against the upper surface of the aluminum alloy base plate.

[0007] As a further embodiment of the present invention, two lead screws are symmetrically and rotatably mounted between the two ends of the mounting plate and the two adjacent support plates. The two lead screws respectively pass through the outer surface of the two T-shaped sliders and are threadedly connected to them. A rotating shaft is rotatably mounted on the lower surface of the mounting plate. A second bevel gear is fixedly mounted at both ends of the rotating shaft. A first bevel gear is fixedly mounted at the end of each of the two lead screws near the second bevel gear. The first bevel gear meshes with the second bevel gear.

[0008] As a further embodiment of the present invention, a worm gear is fixedly installed at the top end of one of the lead screws through the upper surface of the mounting plate, two supports are symmetrically fixedly installed on the upper surface of the mounting plate, a worm is rotatably installed between the two supports, the worm meshes with the worm gear, and a gear is fixedly installed at one end of the worm through the outer surface of one of the supports.

[0009] As a further embodiment of the present invention, a mounting bracket is fixedly installed on the upper surface of the support plate near the gear, a second square slide rod is inserted through the upper surface of the mounting bracket, a rack is fixedly installed at the top end of the second square slide rod, the rack meshes with the gear, an air pipe is fixedly installed on the outer surface of one side of the mounting bracket, a second piston cylinder is fixedly installed at the top end of the air pipe, a second piston is slidably installed on the inner wall of the second piston cylinder, and the bottom end of the second square slide rod is fixedly installed through the lower surface of the mounting bracket and on the upper surface of the second piston.

[0010] As a further embodiment of the present invention, a horizontal plate is fixedly installed between the outer surfaces of the two support plates near the support rollers. A heating box is fixedly installed on the upper surface of the horizontal plate. The upper surface of the heating box is flush with the lower surface of the aluminum alloy base plate. The bottom end of the air pipe is fixedly connected to the outer surface of the heating box. The second piston cylinder is connected to the interior of the heating box through the air pipe. A first piston cylinder is fixedly installed on the lower surface of the horizontal plate. A first piston is slidably installed on the inner wall of the first piston cylinder. A limiting sleeve is fixedly installed on the lower surface of the horizontal plate. A first square slide rod is slidably installed on the inner wall of the limiting sleeve. One end of the first square slide rod is fixedly installed on the outer surface of the first piston.

[0011] As a further embodiment of the present invention, a sliding column is inserted through the upper surface of the horizontal plate, an L-shaped plate is fixedly installed at the top of the sliding column, a roller is rotatably installed on the lower surface of the L-shaped plate, the roller abuts against the upper surface of the aluminum alloy base plate, a retaining ring is fixedly installed on the outer surface of the sliding column near the top, a tension spring is sleeved on the outer surface of the sliding column, the two ends of the tension spring are fixedly installed to the lower surface of the retaining ring and the upper surface of the horizontal plate respectively, a driving plate is fixedly installed through the lower surface of the horizontal plate at the bottom end of the sliding column, a guide groove is opened through the outer surface of the driving plate, and a guide post is fixedly installed between the inner wall of the first square sliding rod near the end of the driving plate, the guide post is slidably installed with the inner wall of the guide groove.

[0012] As a further embodiment of the present invention, a drive motor is fixedly installed on the outer surface of one side of one of the support plates. The output end of the drive motor passes through the outer surface of the support plate and is fixedly installed at the rotation center of the support roller. One end of each of the two connected transport rollers is fixedly installed with a pulley. The outer surface of one end of the support roller is fixedly installed with the same pulley, and the outer surfaces of two adjacent pulleys are fitted with belts.

[0013] As a further embodiment of the present invention, a one-way air nozzle is fixedly installed on the outer surface of the trachea, and the one-way air nozzle is connected to the interior of the trachea.

[0014] As a further embodiment of the present invention, the other end of the worm gear is provided with a hexagonal hole penetrating the outer surface of the support.

[0015] A method for using an aluminum alloy base plate surface knurling machine includes the following steps:

[0016] S1: The drive motor drives the support roller to rotate, which in turn drives one of the pulleys to rotate. The pulley drives the remaining transport roller to rotate in the same direction via a belt, so that the aluminum alloy base plate is conveyed on the upper surface of the transport roller.

[0017] S2: When the thickness of the aluminum alloy base plate increases, it will drive the roller to move upward. The roller will drive the slide column to move upward. The slide column will drive the first piston to compress the nitrogen gas inside the first piston cylinder through the drive plate, guide groove and guide column. Since the pressure of nitrogen gas is constant, it will drive the rack to move upward through the second piston and the second square slide rod. The rack will drive the gear to rotate. The gear will drive the worm wheel to rotate through the worm, so that the two lead screws will drive the embossing roller to move upward through the T-shaped slider.

[0018] S3: When the thicker aluminum alloy base plate comes into contact with the upper surface of the heating box, it heats the nitrogen inside the heating box, causing the nitrogen to expand. After the nitrogen expands, it drives the second piston and the second square slide rod to move upward, thereby causing the worm gear to rotate. This further drives the embossing roller to move upward through the lead screw, increasing the distance between the embossing teeth on the embossing roller and the aluminum alloy base plate, thus reducing the embossing force. When the aluminum alloy base plate is thinner, the temperature is also lower, so the nitrogen expansion is smaller. At this time, the distance between the embossing roller and the aluminum alloy base plate is smaller, and the embossing force of the embossing teeth is greater.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By utilizing the characteristics of aluminum alloys having high temperature and no surface hardness after extrusion molding, high-cost equipment and tools are not required, reducing equipment and maintenance costs. At the same time, manual intervention is reduced, lowering labor costs. The online knurling method does not require waiting for the aluminum alloy base plate to cool and harden before knurling, greatly shortening the production cycle and improving production efficiency.

[0021] 2. When a thicker aluminum alloy base plate comes into contact with the upper surface of the heating chamber, it heats the nitrogen gas inside the chamber, causing the nitrogen to expand. This expansion drives the second piston and the second square slide rod upwards, which in turn rotates the worm gear. This rotation, in turn, drives the embossing roller upwards via the lead screw, increasing the distance between the embossing teeth on the roller and the aluminum alloy base plate, thus reducing the embossing force. When the aluminum alloy base plate is thinner, the temperature is also lower, so the nitrogen expansion is smaller. In this case, the distance between the embossing roller and the aluminum alloy base plate is smaller, and the embossing force of the embossing teeth is greater. This device allows for adjustment of the embossing force based on the temperature of the aluminum alloy base plate, ensuring the consistency of embossing for aluminum alloy base plates of different thicknesses. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an aluminum alloy base plate surface knurling machine proposed in this invention;

[0023] Figure 2 This is a front view structural diagram of an aluminum alloy base plate surface knurling machine proposed in this invention;

[0024] Figure 3 This is a bottom view structural diagram of an aluminum alloy base plate surface knurling machine proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of an aluminum alloy base plate surface knurling machine proposed in this invention;

[0026] Figure 5 This is a schematic diagram of the embossing roller of an aluminum alloy base plate surface knurling machine proposed in this invention;

[0027] Figure 6 This is a schematic diagram of the heating chamber of an aluminum alloy base plate surface knurling machine proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the rollers of an aluminum alloy base plate surface knurling machine proposed in this invention.

[0029] In the diagram: 1. Support plate; 2. Transport roller; 3. Pulley; 4. Belt; 5. Mounting plate; 6. Embossing roller; 7. Limiting ring; 8. Vertical plate; 9. Slide groove; 10. T-shaped slider; 11. Lead screw; 12. Rotating shaft; 13. First bevel gear; 14. Second bevel gear; 15. Drive motor; 16. Aluminum alloy base plate; 17. Horizontal plate; 18. Heating box; 19. First piston cylinder; 20. Air pipe; 21. Second piston cylinder; 22. One-way air nozzle; 23. Mounting bracket; 24. Second square slide bar; 25. Second piston; 26. First square slide bar; 27. First piston; 28. Worm gear; 29. ​​Worm; 30. Gear; 31. Rack; 32. Sliding column; 33. Roller; 34. Tension spring; 35. Retaining ring; 36. Guide groove; 37. Support roller. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Reference Figures 1-7 A knurling machine for an aluminum alloy base plate includes two support plates 1. Multiple transport rollers 2 are rotatably mounted between the two support plates 1 at equal intervals. An aluminum alloy base plate 16 is positioned above the multiple transport rollers 2. Two upright plates 8 are symmetrically fixedly mounted on the upper surfaces of the two support plates 1 near one end. An mounting plate 5 is fixedly mounted on the top of the two upright plates 8. A sliding groove 9 is opened through the outer surface of each of the two upright plates 8. A T-shaped slider 10 is slidably mounted on the inner wall of the sliding groove 9. An embossing roller 6 is rotatably mounted between the T-shaped sliders 10. A support roller 37 is rotatably mounted between the two support plates 1. The support roller 37 is positioned directly below the embossing roller 6. The support roller 37 has the same diameter as the transport rollers 2. Limiting rings 7 are fixedly mounted on the outer circumference of the support roller 37 near both ends. The aluminum alloy base plate 16 is positioned between the two limiting rings 7. Multiple embossing teeth are equidistantly arranged on the outer circumference of the embossing roller 6, and the embossing teeth abut against the upper surface of the aluminum alloy base plate 16.

[0034] By utilizing the high temperature and lack of surface hardness of aluminum alloy after extrusion molding, high-cost equipment and tools are not required, reducing equipment and maintenance costs. At the same time, manual intervention is reduced, lowering labor costs. The online knurling method eliminates the need to wait for the aluminum alloy base plate 16 to cool and harden before knurling, greatly shortening the production cycle and improving production efficiency.

[0035] In this embodiment, two lead screws 11 are symmetrically and rotatably mounted between the two ends of the mounting plate 5 and the two adjacent support plates 1. The two lead screws 11 respectively pass through the outer surface of the two T-shaped sliders 10 and are threadedly connected to them. A rotating shaft 12 is rotatably mounted on the lower surface of the mounting plate 5. A second bevel gear 14 is fixedly mounted at both ends of the rotating shaft 12. A first bevel gear 13 is fixedly mounted at the end of each of the two lead screws 11 near the second bevel gear 14. The first bevel gear 13 meshes with the second bevel gear 14. The top end of one of the lead screws 11 passes through... A worm gear 28 is fixedly mounted on the upper surface of the mounting plate 5. Two supports are symmetrically fixedly mounted on the upper surface of the mounting plate 5. A worm 29 is rotatably mounted between the two supports. The worm 29 meshes with the worm gear 28. One end of the worm 29 passes through the outer surface of one of the supports and is fixedly mounted with a gear 30. A mounting bracket 23 is fixedly mounted on the upper surface of the support plate 1 near the gear 30. A second square slide rod 24 is inserted through the upper surface of the mounting bracket 23. A rack 31 is fixedly mounted at the top of the second square slide rod 24. Engaging with gear 30, an air pipe 20 is fixedly installed on the outer surface of one side of the mounting bracket 23. A second piston cylinder 21 is fixedly installed at the top of the air pipe 20. A second piston 25 is slidably installed on the inner wall of the second piston cylinder 21. The bottom end of the second square slide rod 24 passes through the lower surface of the mounting bracket 23 and is fixedly installed on the upper surface of the second piston 25. A horizontal plate 17 is fixedly installed between the outer surfaces of the two support plates 1 near the support roller 37. A heating box 18 is fixedly installed on the upper surface of the horizontal plate 17. The upper surface of the heating box 18 is flush with the aluminum alloy. The lower surface of the base plate 16 is flush with the bottom of the gas pipe 20, and the bottom end of the gas pipe 20 is fixedly connected to the outer surface of the heating box 18. The second piston cylinder 21 is connected to the interior of the heating box 18 through the gas pipe 20. The lower surface of the horizontal plate 17 is fixedly installed with the first piston cylinder 19. The inner wall of the first piston cylinder 19 is slidably installed with the first piston 27. The lower surface of the horizontal plate 17 is fixedly installed with the limiting sleeve. The inner wall of the limiting sleeve is slidably installed with the first square slide rod 26. One end of the first square slide rod 26 is fixedly installed with the outer surface of the first piston 27.

[0036] When the thicker aluminum alloy base plate 16 comes into contact with the upper surface of the heating box 18, it heats the nitrogen gas inside the heating box 18, causing the nitrogen gas to expand. After the nitrogen gas expands, it drives the second piston 25 and the second square slide bar 24 to move upward, thereby causing the worm gear 28 to rotate. This further drives the embossing roller 6 to move upward through the lead screw 11, increasing the distance between the embossing teeth on the embossing roller 6 and the aluminum alloy base plate 16, thus reducing the embossing force. When the aluminum alloy base plate 16 is thinner, the temperature is also lower, and the nitrogen expansion is smaller. At this time, the distance between the embossing roller 6 and the aluminum alloy base plate 16 is smaller, and the embossing force of the embossing teeth is larger. This device can adjust the embossing force according to the temperature of the aluminum alloy base plate 16, ensuring the consistency of embossing for aluminum alloy base plates 16 with different thicknesses.

[0037] In this embodiment, a sliding column 32 is inserted through the upper surface of the horizontal plate 17. An L-shaped plate is fixedly installed at the top of the sliding column 32. A roller 33 is rotatably installed on the lower surface of the L-shaped plate. The roller 33 abuts against the upper surface of the aluminum alloy base plate 16. A retaining ring 35 is fixedly installed on the outer surface of the sliding column 32 near the top. A tension spring 34 is sleeved on the outer surface of the sliding column 32. The two ends of the tension spring 34 are fixedly installed to the lower surface of the retaining ring 35 and the upper surface of the horizontal plate 17, respectively. A drive plate is fixedly installed through the lower surface of the horizontal plate 17 at the bottom end of the sliding column 32. A guide groove 36 is opened through the outer surface of the drive plate. A guide post is fixedly installed between the inner wall of the first square sliding rod 26 near the drive plate. The guide post is slidably installed with the inner wall of the guide groove 36.

[0038] As the thickness of the aluminum alloy base plate 16 increases, the roller 33 moves upward, causing the sliding column 32 to move upward. This, in turn, causes the drive plate to move upward. The drive plate, through the guide groove 36 and the guide column, moves the first square sliding rod 26 closer to the heating chamber 18. The first square sliding rod 26 compresses the nitrogen gas inside the first piston cylinder 19 via the first piston 27, allowing the nitrogen gas inside the first piston cylinder 19 to enter the heating chamber 18. Since the nitrogen pressure is constant, this process... The second piston 25 and the second square slide bar 24 drive the rack 31 to move upward, the rack 31 drives the gear 30 to rotate, the gear 30 drives the worm wheel 28 to rotate through the worm 29, and the worm wheel 28 drives one of the lead screws 11 to rotate. The lead screw 11 drives the other lead screw 11 to rotate through the first bevel gear 13 and the second bevel gear 14. The two lead screws 11 drive the embossing roller 6 to move upward through the T-shaped slider 10, ensuring that the pattern size pressed out of the aluminum alloy base plate 16 of different thicknesses is consistent. The adjustment method is simple and easy for operators to use.

[0039] In this embodiment, a drive motor 15 is fixedly installed on the outer surface of one side of a support plate 1. The output end of the drive motor 15 passes through the outer surface of the support plate 1 and is fixedly installed at the rotation center of the support roller 37. One end of each of the two connected transport rollers 2 is fixedly installed with a pulley 3. The outer surface of one end of the support roller 37 is fixedly installed with the same pulley 3. The outer surfaces of two adjacent pulleys 3 are fitted with belts 4.

[0040] The operator guides one end of the extruded aluminum alloy base plate 16 to the upper surface of the transport roller 2. The drive motor 15 drives the support roller 37 to rotate, which in turn drives one of the pulleys 3 to rotate. The pulley 3 drives the remaining transport roller 2 to rotate in the same direction via the belt 4, so that the aluminum alloy base plate 16 is conveyed on the upper surface of the transport roller 2, which facilitates continuous knurling of its upper surface.

[0041] In this embodiment, the roller 33 is lifted by the aluminum alloy base plate 16, and at the same time, the tension of the tension spring 34 is sufficient to ensure that the first piston 27 will not move when nitrogen expands.

[0042] In this embodiment, the outer dimensions of the rack 31 are larger than the dimensions of the second square slide bar 24 to ensure that the rack 31 does not move down excessively.

[0043] In this embodiment, a one-way air nozzle 22 is fixedly installed on the outer surface of the air pipe 20. The one-way air nozzle 22 is connected to the inside of the air pipe 20. The other end of the worm gear 29 passes through the outer surface of the support and has a hexagonal hole. Before embossing, the aluminum alloy base plate 16 is pressed to the required thickness by an extrusion molding device. The temperature of the extruded aluminum alloy base plate 16 is greater than 500°C. The high temperature softens the aluminum alloy base plate 16, making it easier for subsequent embossing. The device in this document takes an aluminum alloy base plate 16 with a thickness of 5-15 mm as an example. When it is necessary to switch to other thicknesses... When using the large-sized aluminum alloy base plate 16, the operator needs to manually insert an Allen wrench into the hexagonal hole of the worm gear 29. The Allen wrench drives the worm gear 29 to rotate, and the worm gear 29 drives the lead screw 11 to rotate through the worm wheel 28. The lead screw 11 drives another lead screw 11 to rotate through the first bevel gear 13 and the second bevel gear 14, thereby adjusting the height of the embossing roller 6. At the same time, nitrogen is injected or discharged into the heating box 18 through the one-way air nozzle 22 to maintain a certain pressure of nitrogen inside the heating box 18 at room temperature.

[0044] A method for using an aluminum alloy base plate surface knurling machine includes the following steps:

[0045] S1: The drive motor 15 drives the support roller 37 to rotate, which in turn drives one of the pulleys 3 to rotate. The pulley 3 drives the remaining transport roller 2 to rotate in the same direction via the belt 4, so that the aluminum alloy base plate 16 is conveyed on the upper surface of the transport roller 2.

[0046] S2: When the thickness of the aluminum alloy base plate 16 increases, it will drive the roller 33 to move upward. The roller 33 will drive the slide column 32 to move upward. The slide column 32 will drive the first piston 27 to compress the nitrogen gas inside the first piston cylinder 19 through the drive plate, guide groove 36 and guide column. Since the pressure of nitrogen gas is constant, it will drive the rack 31 to move upward through the second piston 25 and the second square slide rod 24. The rack 31 will drive the gear 30 to rotate. The gear 30 will drive the worm wheel 28 to rotate through the worm 29, so that the two lead screws 11 will drive the embossing roller 6 to move upward through the T-shaped slider 10.

[0047] S3: When the thicker aluminum alloy base plate 16 comes into contact with the upper surface of the heating box 18, it heats the nitrogen gas inside the heating box 18, causing the nitrogen gas to expand. After the nitrogen gas expands, it drives the second piston 25 and the second square slide bar 24 to move upward, thereby causing the worm gear 28 to rotate. This further drives the embossing roller 6 to move upward through the lead screw 11, increasing the distance between the embossing teeth on the embossing roller 6 and the aluminum alloy base plate 16, thus reducing the embossing force. When the aluminum alloy base plate 16 is thinner, the temperature is also lower, and the nitrogen gas expansion is smaller. At this time, the distance between the embossing roller 6 and the aluminum alloy base plate 16 is smaller, and the embossing force of the embossing teeth is larger.

[0048] It should be noted that, in use, the operator guides one end of the extruded aluminum alloy base plate 16 to the upper surface of the transport roller 2. The drive motor 15 drives the support roller 37 to rotate, causing one of the pulleys 3 to rotate. The pulley 3, via the belt 4, drives the remaining transport rollers 2 to rotate in the same direction, allowing the aluminum alloy base plate 16 to be conveyed on the upper surface of the transport rollers 2, facilitating continuous knurling of its upper surface. As the thickness of the aluminum alloy base plate 16 increases, the roller 33 moves upward, causing the sliding column 32 to move upward, which in turn moves the drive plate upward. The guide groove 36 and guide post drive the first square slide rod 26 to move closer to the heating box 18. The first square slide rod 26 compresses the nitrogen gas inside the first piston cylinder 19 through the first piston 27, causing the nitrogen gas inside the first piston cylinder 19 to enter the interior of the heating box 18. Since the pressure of the nitrogen gas is constant, it will drive the rack 31 to move upward through the second piston 25 and the second square slide rod 24. The rack 31 drives the gear 30 to rotate. The gear 30 drives the worm wheel 28 to rotate through the worm 29, causing the worm wheel 28 to drive one of the lead screws 11 to rotate. The lead screw 11 drives the other lead screw 11 to rotate through the first bevel gear 13 and the second bevel gear 14. The two lead screws 11 are connected by the T-shaped slider 1. The embossing roller 6 moves upward, ensuring that the pattern size pressed onto aluminum alloy base plates 16 of different thicknesses is consistent. The adjustment method is simple and easy for operators to use. Because the aluminum alloy base plates 16 of different thicknesses have different temperatures when entering the knurling device after extrusion molding due to thickness variations, the temperature of the thicker aluminum alloy base plate 16 will be higher than that of the thinner aluminum alloy base plate 16. This temperature difference results in different hardnesses of the aluminum alloy base plates 16; the higher the temperature, the softer the aluminum alloy base plate 16, and vice versa. This leads to different knurling forces during the process. When the thicker aluminum alloy base plate 16 contacts the upper surface of the heating box 18... The nitrogen gas inside the heating chamber 18 is heated, causing it to expand. This expansion drives the second piston 25 and the second square slide bar 24 upwards, which in turn rotates the worm gear 28. This rotation, via the lead screw 11, drives the embossing roller 6 upwards, increasing the distance between the embossing teeth on the roller 6 and the aluminum alloy base plate 16, thus reducing the embossing force. When the aluminum alloy base plate 16 is thinner, the temperature is also lower, resulting in less nitrogen expansion. In this case, the distance between the embossing roller 6 and the aluminum alloy base plate 16 is smaller, and the embossing force of the embossing teeth is greater. This device allows for adjustment of the embossing force based on the temperature of the aluminum alloy base plate 16, ensuring the consistency of embossing on aluminum alloy base plates 16 with different thicknesses.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A surface knurling machine for aluminum alloy base plates, comprising two support plates (1), characterized in that, Multiple transport rollers (2) are equidistantly mounted between the two support plates (1). An aluminum alloy base plate (16) is provided above the multiple transport rollers (2). Two upright plates (8) are symmetrically fixedly mounted on the upper surface of the two support plates (1) near one end. An mounting plate (5) is fixedly mounted on the top of the two upright plates (8). A sliding groove (9) is provided through the outer surface of both upright plates (8). A T-shaped slider (10) is slidably mounted on the inner wall of the sliding groove (9). An embossing roller (6) is rotatably mounted between the T-shaped sliders (10). A support roller (37) is rotatably mounted between the two support plates (1). The support roller (37) is located directly below the embossing roller (6). The support roller (37) and the transport roller (2) are connected. The diameters of the support rollers (37) are the same. Limiting rings (7) are fixedly installed on the outer circumference of the support rollers (37) near both ends. The aluminum alloy base plate (16) is set between the two limiting rings (7). Multiple embossing teeth are equidistantly arranged on the outer circumference of the embossing roller (6). The embossing teeth abut against the upper surface of the aluminum alloy base plate (16). Two lead screws (11) are symmetrically and rotatably installed between the two ends of the mounting plate (5) and the two adjacent support plates (1). The two lead screws (11) pass through the outer surface of the two T-shaped sliders (10) and are threadedly connected to them. A rotating shaft (12) is rotatably installed on the lower surface of the mounting plate (5). A second bevel gear (14) is fixedly installed at both ends of the rotating shaft (12). The two lead screws (11) A first bevel gear (13) is fixedly installed at one end near the second bevel gear (14). The first bevel gear (13) meshes with the second bevel gear (14). A worm gear (28) is fixedly installed at the top end of one of the lead screws (11) through the upper surface of the mounting plate (5). Two supports are symmetrically fixedly installed on the upper surface of the mounting plate (5). A worm (29) is rotatably installed between the two supports. The worm (29) meshes with the worm gear (28). A gear (30) is fixedly installed at one end of the worm (29) through the outer surface of one of the supports. A mounting bracket (23) is fixedly installed on the upper surface of the support plate (1) near the gear (30). A through-hole is inserted into the upper surface of the mounting bracket (23). There is a second square slide bar (24), and a rack (31) is fixedly installed at the top of the second square slide bar (24). The rack (31) meshes with a gear (30). An air pipe (20) is fixedly installed on the outer surface of one side of the mounting frame (23). A second piston cylinder (21) is fixedly installed at the top of the air pipe (20). A second piston (25) is slidably installed on the inner wall of the second piston cylinder (21). The bottom end of the second square slide bar (24) passes through the lower surface of the mounting frame (23) and is fixedly installed on the upper surface of the second piston (25). A horizontal plate (17) is fixedly installed between the outer surfaces of the two support plates (1) near the support roller (37). A heating box (18) is fixedly installed on the upper surface of the horizontal plate (17).The upper surface of the heating box (18) is flush with the lower surface of the aluminum alloy base plate (16). The bottom end of the air pipe (20) is fixedly connected to the outer surface of the heating box (18). The second piston cylinder (21) is connected to the interior of the heating box (18) through the air pipe (20). The lower surface of the horizontal plate (17) is fixedly installed with the first piston cylinder (19). The inner wall of the first piston cylinder (19) is slidably installed with the first piston (27). The lower surface of the horizontal plate (17) is fixedly installed with the limiting sleeve. The inner wall of the limiting sleeve is slidably installed with the first square slide rod (26). One end of the first square slide rod (26) is fixedly installed with the outer surface of the first piston (27). The upper surface of the horizontal plate (17) is penetrated by a sliding column (32). An L-shaped plate is fixedly installed at the top of (32). A roller (33) is rotatably installed on the lower surface of the L-shaped plate. The roller (33) abuts against the upper surface of the aluminum alloy base plate (16). A retaining ring (35) is fixedly installed on the outer surface of the sliding column (32) near the top. A tension spring (34) is sleeved on the outer surface of the sliding column (32). The two ends of the tension spring (34) are fixedly installed on the lower surface of the retaining ring (35) and the upper surface of the horizontal plate (17), respectively. A drive plate is fixedly installed at the bottom end of the sliding column (32) through the lower surface of the horizontal plate (17). A guide groove (36) is opened through the outer surface of the drive plate. A guide post is fixedly installed between the inner wall of the first square sliding rod (26) near the drive plate. The guide post is slidably installed with the inner wall of the guide groove (36).

2. The aluminum alloy base plate surface knurling machine according to claim 1, characterized in that, One of the support plates (1) has a drive motor (15) fixedly installed on one side of its outer surface. The output end of the drive motor (15) passes through the outer surface of the support plate (1) and is fixedly installed at the rotation center of the support roller (37). One end of each of the two connected transport rollers (2) is fixedly installed with a pulley (3). The outer surface of one end of the support roller (37) is fixedly installed with the same pulley (3). The outer surfaces of two adjacent pulleys (3) are fitted with belts (4).

3. The aluminum alloy base plate surface knurling machine according to claim 1, characterized in that, A one-way air nozzle (22) is fixedly installed on the outer surface of the trachea (20), and the one-way air nozzle (22) is connected to the inside of the trachea (20).

4. The aluminum alloy base plate surface knurling machine according to claim 1, characterized in that, The other end of the worm (29) has a hexagonal hole that penetrates the outer surface of the support.

5. A method of using an aluminum alloy base plate surface knurling machine, characterized in that, The aluminum alloy base plate surface knurling machine according to any one of claims 1-4 includes the following steps: S1: Drive the support roller (37) to rotate by the drive motor (15), so that the support roller (37) drives one of the pulleys (3) to rotate. The pulley (3) drives the remaining transport roller (2) to rotate in the same direction through the belt (4), so that the aluminum alloy base plate (16) is conveyed on the upper surface of the transport roller (2). S2: When the thickness of the aluminum alloy base plate (16) increases, it will drive the roller (33) to move upward. The roller (33) will drive the slide column (32) to move upward. The slide column (32) will drive the first piston (27) to compress the nitrogen gas inside the first piston cylinder (19) through the drive plate, guide groove (36) and guide column. Since the pressure of nitrogen gas is constant, it will drive the rack (31) to move upward through the second piston (25) and the second square slide rod (24). The rack (31) will drive the gear (30) to rotate. The gear (30) will drive the worm wheel (28) to rotate through the worm (29), so that the two lead screws (11) will drive the embossing roller (6) to move upward through the T-shaped slider (10). S3: When the thicker aluminum alloy base plate (16) comes into contact with the upper surface of the heating box (18), it will heat the nitrogen inside the heating box (18), causing the nitrogen to expand. After the nitrogen expands, it will drive the second piston (25) and the second square slide bar (24) to move upward, thereby causing the worm gear (28) to rotate. It will further drive the embossing roller (6) to move upward through the screw (11), increasing the distance between the embossing teeth on the embossing roller (6) and the aluminum alloy base plate (16), reducing the embossing force. When the aluminum alloy base plate (16) is thinner, the temperature is also lower, so the nitrogen expansion is smaller. At this time, the distance between the embossing roller (6) and the aluminum alloy base plate (16) is smaller, and the embossing force of the embossing teeth is larger.

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