Double-wheel driving device of numerical control carving machine

Abstract

The utility model discloses a double-wheel driving device of a numerical control carving machine, which relates to the technical field of driving devices of numerical control carving machines, and comprises a carving machine assembly, a double-wheel driving assembly and a belt tensioning assembly, the double-wheel driving assembly comprises a double-wheel driving motor and a double-groove belt wheel, the double-groove belt wheel is fixedly installed at one end of the double-wheel driving motor, the belt tensioning assembly comprises a belt tensioning block, and the belt tensioning block is fixedly installed at one end of the base. Under the combined action of the double-wheel driving motor, the double-groove belt pulley, the transmission belts and the driven belt pulley, the double-groove belt pulley is mounted at one end of the double-wheel driving motor, so that the double-wheel driving motor can drive the two transmission belts to rotate at the same time, and then the driven belt pulley and the transmission lead screw rotate through the transmission belts; therefore, the movement of the bracket is more stable, and the stability and precision of the machine head are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of CNC engraving machine drive devices, specifically to a dual-wheel drive device for a CNC engraving machine. Background Technology

[0002] CNC engraving machines include woodworking engraving machines, stone engraving machines, laser engraving machines, and other types. CNC engraving machines are a common type of digital engraving equipment. They have built-in programs for milling and carving flat surfaces. CNC engraving machines can perform relief carving, flat carving, and hollow carving on wood, metal, acrylic, and other materials. During engraving, the material to be engraved is fixed on the working panel of the engraving machine, and then the material is engraved by the free movement of the milling cutter. The engraving speed is fast and the precision is high.

[0003] Existing CNC engraving machines, especially small ones, mostly use single-rail guidance and single-sided motor drive for their machine heads, resulting in poor stability and precision. Furthermore, the transmission belt is prone to loosening after prolonged operation, which reduces the power transmission efficiency of the motor.

[0004] To address this problem, this application provides a dual-wheel drive device for a CNC engraving machine. Utility Model Content

[0005] The purpose of this utility model is to provide a dual-wheel drive device for CNC engraving machines, in order to solve the problems mentioned in the background art, where CNC engraving machine drive devices mostly use single-rail guidance and single-sided motor drive, and the transmission belt is prone to loosening after long-term operation, resulting in poor stability and accuracy of the machine head and reduced power transmission efficiency of the motor, thus leading to poor performance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A dual-wheel drive device for a CNC engraving machine includes an engraving machine assembly, a dual-wheel drive assembly, and a belt tensioning assembly. The engraving machine assembly includes a base and a fixed base, with the fixed base fixedly installed on the top of the base. The dual-wheel drive assembly is disposed at one end of the engraving machine assembly. The dual-wheel drive assembly includes a dual-wheel drive motor and a double-groove pulley, with the double-groove pulley fixedly installed at one end of the dual-wheel drive motor. The belt tensioning assembly is fixedly installed at one end of the engraving machine assembly and includes a belt tensioning block, which is fixedly installed at one end of the base.

[0008] A further improvement of this utility model is that: a motor mounting slot is provided at the bottom of the base, the dual-wheel drive motor is disposed inside the motor mounting slot, and a rotating bearing is fixedly installed inside the fixed seat.

[0009] A further improvement of this utility model is that: a transmission screw is fixedly installed inside the rotating bearing, a bracket is movably connected to the outside of the transmission screw, and an engraving box is movably installed inside the bracket.

[0010] A further improvement of this utility model is that a guide rail is fixedly installed inside the fixed base, and the bracket is movably installed outside the guide rail.

[0011] A further improvement of this utility model is that: a transmission belt is movably connected to the outside of the double-groove pulley, and a driven pulley is movably connected to the other end of the transmission belt; one end of the transmission screw is fixedly installed inside the driven pulley.

[0012] A further improvement of this utility model is that: a workbench is provided on the top of the base, a sliding groove is provided inside the belt tensioning block, and a tension adjustment slider is slidably installed inside the sliding groove.

[0013] A further improvement of this utility model is that: an adjusting stud is fixedly connected to one side of the tension adjusting slider, an adjusting nut is installed on the external thread of the adjusting stud, and a belt tensioning wheel is rotatably installed on the other end of the adjusting stud.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a dual-wheel drive device for a CNC engraving machine. Through the combined action of a dual-wheel drive motor, a double-groove pulley, a transmission belt, and a driven pulley, the dual-wheel drive motor can simultaneously drive two transmission belts to rotate by installing a double-groove pulley at one end of the dual-wheel drive motor. The transmission belts then drive the driven pulley and the transmission screw to rotate. Because the dual driven pulleys enable the transmission screw to rotate synchronously in both directions, the movement of the support is more stable, improving the stability and accuracy of the machine head.

[0016] 2. This utility model provides a dual-wheel drive device for a CNC engraving machine. Under the combined action of the belt tensioning block, tension adjustment slider, adjustment nut and belt tensioning wheel, when the transmission belt is loose, the adjustment nut is loosened, and the tension adjustment slider is pushed to move in the direction of the transmission belt, so that the belt tensioning wheel is in close contact with the transmission belt, thereby tightening the transmission belt and improving the power transmission efficiency of the dual-wheel drive motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dual-wheel drive device of the CNC engraving machine of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the dual-wheel drive assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the belt tensioning assembly of this utility model.

[0022] In the diagram: 1. Engraving machine assembly; 2. Dual-wheel drive assembly; 3. Belt tensioning assembly; 10. Base; 11. Fixed seat; 12. Rotary bearing; 13. Worktable; 14. Motor mounting slot; 15. Bracket; 16. Engraving box; 20. Transmission screw; 21. Guide rail; 22. Dual-wheel drive motor; 24. Double-groove pulley; 25. Transmission belt; 26. Driven pulley; 30. Belt tensioning block; 31. Adjusting nut; 32. Sliding groove; 33. Tensioning adjustment slider; 34. Belt tensioning pulley; 35. Adjusting stud. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] like Figure 1-5 As shown, this utility model provides a dual-wheel drive device for a CNC engraving machine, including an engraving machine assembly 1, a dual-wheel drive assembly 2, and a belt tensioning assembly 3. The engraving machine assembly 1 includes a base 10 and a fixed seat 11. The fixed seat 11 is fixedly installed on the top of the base 10. A motor mounting groove 14 is provided at the bottom of the base 10. The dual-wheel drive motor 22 is disposed inside the motor mounting groove 14. A rotating bearing 12 is fixedly installed inside the fixed seat 11. A worktable 13 is provided on the top of the base 10.

[0025] like Figure 2-4As shown, the dual-wheel drive assembly 2 is located at one end of the engraving machine assembly 1. The dual-wheel drive assembly 2 includes a dual-wheel drive motor 22 and a double-groove pulley 24. The double-groove pulley 24 is fixedly installed at one end of the dual-wheel drive motor 22. A transmission screw 20 is fixedly installed inside the rotating bearing 12. A bracket 15 is movably connected to the outside of the transmission screw 20. An engraving box 16 is movably installed inside the bracket 15. The bracket 15 drives the engraving box 16 to engrave the object fixed on the worktable 13. A guide rail 21 is fixedly installed inside the fixed base 11. The bracket 15 is movably installed outside the guide rail 21. The double-groove pulley 24 is movably connected to the outside of the guide rail 21. There is a transmission belt 25, and the other end of the transmission belt 25 is movably connected to a driven pulley 26. One end of the transmission screw 20 is fixedly installed inside the driven pulley 26. By installing a double-groove pulley 24 at one end of the dual-wheel drive motor 22, the dual-wheel drive motor 22 can drive the two transmission belts 25 to rotate simultaneously. Then, the transmission belts 25 drive the driven pulley 26 and the transmission screw 20 to rotate, so that the bracket 15 and the engraving box 16 can move along the guide rail 21. Because the dual driven pulleys 26 are used to make the transmission screw 20 rotate synchronously in both directions, the movement of the bracket 15 is more stable, improving the stability and accuracy of the machine head.

[0026] like Figure 2-5 As shown, the belt tensioning assembly 3 is fixedly installed at one end of the engraving machine assembly 1. The belt tensioning assembly 3 includes a belt tensioning block 30, which is fixedly installed at one end of the base 10. A sliding groove 32 is provided inside the belt tensioning block 30, and a tension adjustment slider 33 is slidably installed inside the sliding groove 32. An adjusting stud 35 is fixedly connected to one side of the tension adjustment slider 33, and an adjusting nut 31 is installed on the external thread of the adjusting stud 35. A belt tensioning wheel 34 is rotatably installed at the other end of the adjusting stud 35. When the drive belt 25... When the belt tensioner becomes loose after prolonged operation, the belt tensioner 30, tension adjustment slider 33, adjustment nut 31, and belt tensioner pulley 34 work together to first loosen the adjustment nut 31, allowing the tension adjustment slider 33 to slide inside the sliding groove 32. Then, the tension adjustment slider 33 is pushed towards the drive belt 25, causing the belt tensioner pulley 34 to press tightly against the drive belt 25, thus tensioning the drive belt 25. Finally, the adjustment nut 31 is tightened to fix the belt tensioner pulley 34, thereby improving the power transmission efficiency of the dual-wheel drive motor 22.

[0027] The working principle of the dual-wheel drive device of this CNC engraving machine will be explained in detail below.

[0028] like Figure 1-5As shown, by installing a double-grooved pulley 24 at one end of the dual-wheel drive motor 22, the dual-wheel drive motor 22 can simultaneously drive two transmission belts 25 to rotate. The transmission belts 25 then drive the driven pulley 26 and the transmission screw 20 to rotate, allowing the bracket 15 and the engraving box 16 to move along the guide rail 21. Because the double driven pulley 26 enables the transmission screw 20 to rotate synchronously in both directions, the movement of the bracket 15 is more stable, improving the stability and accuracy of the machine head. The bracket 15 drives the engraving box 16 to engrave objects fixed on the worktable 13. When the drive belt 25 becomes loose after prolonged operation, the belt tensioning block 30, tension adjustment slider 33, adjustment nut 31, and belt tensioning pulley 34 work together to first loosen the adjustment nut 31, allowing the tension adjustment slider 33 to slide inside the sliding groove 32. Then, the tension adjustment slider 33 is pushed towards the drive belt 25, causing the belt tensioning pulley 34 to press tightly against the drive belt 25, thus tensioning the drive belt 25. Finally, the adjustment nut 31 is tightened to fix the belt tensioning pulley 34, thereby improving the power transmission efficiency of the dual-wheel drive motor 22.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dual-wheel drive device for a CNC engraving machine, comprising an engraving machine assembly (1), a dual-wheel drive assembly (2), and a belt tensioning assembly (3), characterized in that: The engraving machine assembly (1) includes a base (10) and a fixed seat (11). The fixed seat (11) is fixedly installed on the top of the base (10). The dual-wheel drive assembly (2) is located at one end of the engraving machine assembly (1). The dual-wheel drive assembly (2) includes a dual-wheel drive motor (22) and a double-groove pulley (24). The double-groove pulley (24) is fixedly installed at one end of the dual-wheel drive motor (22). The belt tensioning assembly (3) is fixedly installed at one end of the engraving machine assembly (1). The belt tensioning assembly (3) includes a belt tensioning block (30). The belt tensioning block (30) is fixedly installed at one end of the base (10).

2. The dual-wheel drive device for a CNC engraving machine according to claim 1, characterized in that: The bottom of the base (10) is provided with a motor mounting slot (14), the dual-wheel drive motor (22) is located inside the motor mounting slot (14), and a rotating bearing (12) is fixedly installed inside the fixed seat (11).

3. The dual-wheel drive device for a CNC engraving machine according to claim 2, characterized in that: The rotating bearing (12) has a transmission screw (20) fixedly installed inside, and the transmission screw (20) is movably connected to a bracket (15). The bracket (15) has an engraving box (16) movably installed inside.

4. The dual-wheel drive device for a CNC engraving machine according to claim 3, characterized in that: The guide rail (21) is fixedly installed inside the fixed base (11), and the bracket (15) is movably installed outside the guide rail (21).

5. The dual-wheel drive device for a CNC engraving machine according to claim 3, characterized in that: The double-groove pulley (24) is externally connected to a transmission belt (25), and the other end of the transmission belt (25) is movably connected to a driven pulley (26). One end of the transmission screw (20) is fixedly installed inside the driven pulley (26).

6. The dual-wheel drive device for a CNC engraving machine according to claim 1, characterized in that: The base (10) is provided with a workbench (13) on top, and the belt tensioning block (30) has a sliding groove (32) inside, and a tension adjustment slider (33) is slidably installed inside the sliding groove (32).

7. The dual-wheel drive device for a CNC engraving machine according to claim 6, characterized in that: One side of the tension adjustment slider (33) is fixedly connected to an adjustment stud (35), and an adjustment nut (31) is installed on the external thread of the adjustment stud (35). The other end of the adjustment stud (35) is rotatably mounted with a belt tensioning wheel (34).

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