Angle-adjustable numerical control engraving and milling machine

Abstract

The utility model discloses an angle-adjustable numerical control engraving and milling machine, and relates to the technical field of numerical control engraving and milling machines, the angle-adjustable numerical control engraving and milling machine comprises an operation table and an engraving and milling mechanism arranged above the operation table, two movable grooves are symmetrically formed in the top surface of the operation table, clamping mechanisms are arranged on openings of the movable grooves, and a supporting mechanism is arranged between the two sets of clamping mechanisms; the engraving and milling mechanism comprises a lifting frame slidably arranged above the operation table in a rectangular frame shape, a sliding frame slidably arranged in the inner side of the lifting frame and a sliding seat slidably arranged in the sliding frame, a first motor is installed at the top of the sliding seat, and an output shaft of the first motor rotationally penetrates through the sliding seat and is fixedly provided with an engraving and milling cutter; through the arrangement of the clamping mechanisms, the clamping seats can carry a workpiece to rotate and adjust the angle of the workpiece only by rotating the overturning rods, and through the arrangement of the supporting mechanisms, when the workpiece is fixed between the two sets of clamping mechanisms, the two ends of the workpiece can be supported by the two top seats respectively, and the strength of the ends of the workpiece is enhanced to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control engraving and milling machines, in particular to an angle-adjustable numerical control engraving and milling machine. Background Art

[0002] The engraving and milling machine has a high spindle speed, which is suitable for the processing of small tools. It has a relatively small torque and focuses on the "engraving" function, such as wood, two-color boards, acrylic boards and other boards with low hardness.

[0003] In the prior art, the operating table of the engraving and milling machine is generally equipped with a clamp to ensure the stability of the workpiece during engraving and milling operations. However, the use of conventional clamps can often only keep the workpiece horizontal during processing, and cannot adjust the processing angle of the workpiece according to processing requirements, resulting in poor applicability during processing. Utility Model Content

[0004] In order to solve the above technical problems, a CNC engraving and milling machine with adjustable angle is provided, which solves the problem that the use of conventional fixtures in the existing technology can often only keep the workpiece horizontal during processing, but cannot adjust the processing angle of the workpiece according to processing requirements, thereby resulting in poor applicability during processing.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an angle-adjustable CNC engraving and milling machine, comprising an operating table and an engraving and milling mechanism disposed above the operating table, wherein two movable grooves are symmetrically provided on the top surface of the operating table, a clamping mechanism is provided on the opening of the movable groove, and a supporting mechanism is provided between the two sets of the clamping mechanisms;

[0006] The engraving and milling mechanism includes a lifting frame slidably arranged above the operating table in a rectangular frame shape, a sliding frame slidably arranged inside the lifting frame, and a sliding seat slidably arranged inside the sliding frame. A first motor is installed on the top of the sliding seat. The output shaft of the first motor rotates through the sliding seat and is fixed with an engraving and milling cutter.

[0007] The clamping mechanism includes a sliding plate vertically arranged above the opening of the movable groove, a flip rod rotatably arranged in the inner wall of the sliding plate, a clamping seat is fixed to one end of the flip rod facing the middle of the operating table, and an extrusion column is threaded through the top of the clamping seat;

[0008] The support mechanism includes two top seats that are symmetrically slidably penetrated in the inner wall of the operating table, and a control component for the reverse lifting and lowering movements of the two top seats is provided between the two top seats. The control component includes two groups of first transmission components symmetrically arranged on the bottom surface of the operating table and a second transmission component located between the two groups of transmission components.

[0009] Preferably, an external threaded sleeve and an extrusion ring are provided on the rod body of the flip rod, the external threaded sleeve is fixed on the side of the sliding plate facing away from the clamping seat, and the extrusion ring is slidably arranged on the side of the external threaded sleeve away from the sliding plate, and a plurality of inclined extrusion sheets are arranged around the inner side of the extrusion ring, one end of the extrusion sheet is fixedly connected to the external threaded sleeve, and the other end of the extrusion sheet is against the rod body of the flip rod, and the rod body of the external threaded sleeve is threadedly connected to an internal threaded sleeve fixedly connected to the extrusion ring.

[0010] Preferably, the first transmission assembly includes two supporting plates symmetrically fixed to the bottom surface of the operating table, a transmission rod rotatably arranged between the two supporting plates, and a gear tightly sleeved on the body of the transmission rod, and a toothed plate meshing with the gear is fixedly embedded on the side surface of the top seat.

[0011] Preferably, the second transmission assembly includes a driven rod horizontally arranged in the middle of the lower part of the operating table and two worm gears respectively fixed to the two ends of the driven rod, and the rod body of the driven rod is symmetrically rotatably sleeved with a bracket fixedly connected to the bottom surface of the operating table, the two worm gears are respectively located below the two transmission rods, and the rod body of the transmission rod is fastened with a worm wheel meshing with the worm gear, and the spiral direction of the two worm gears is the same.

[0012] Preferably, the second transmission assembly further comprises a third motor mounted on the bottom surface of the operating table via a bracket, and a transmission belt is connected between the output shaft of the third motor and the shaft of the driven rod.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) Through the setting of the clamping mechanism, only the turning rod needs to be turned to rotate the clamping seat and the workpiece, and the angle of the workpiece can be adjusted to meet the different needs of engraving and milling processing;

[0015] (2) By setting up the supporting mechanism, when the workpiece is fixed between the two sets of clamping mechanisms, the two ends of the workpiece can be supported by the two top seats respectively, and then the two top seats cooperate with each other to support the workpiece from both ends, thereby strengthening the strength of the workpiece end to a certain extent, so as to prevent the workpiece end from being directly subjected to force without support, thereby forming a torsional force on the flip rod and increasing the friction between the flip rod and the extrusion plate;

[0016] (3) The power components are used to act on the two top seats to perform reverse lifting and lowering activities, so that when the workpiece is rotated and adjusted, the two top seats are still used to contact the two ends of the workpiece respectively, and the two ends of the workpiece are continued to be supported, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the operating table of the utility model;

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at B in the middle;

[0021] Figure 5 This is a schematic diagram of the internal structure of the sliding plate of the utility model.

[0022] The numbers in the figure are:

[0023] 1. Operating table; 2. Lifting frame; 3. Sliding frame; 4. Sliding seat; 5. First motor; 6. Clamping seat; 7. Sliding plate; 8. Flip rod; 9. External threaded sleeve; 10. Extrusion plate; 11. Extrusion ring; 12. Internal threaded sleeve; 13. Movable groove; 14. Movable seat; 15. Transmission screw; 16. Second motor; 17. Third motor; 18. Transmission belt; 19. Top seat; 20. Tooth plate; 21. Support plate; 22. Transmission rod; 23. Gear; 24. Worm gear; 25. Worm; 26. Bracket; 27. Follower rod. DETAILED DESCRIPTION

[0024] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0025] Reference Figure 1-5 As shown, an angle-adjustable CNC engraving and milling machine includes an operating table 1 and an engraving and milling mechanism arranged above the operating table 1;

[0026] The engraving and milling mechanism includes a lifting frame 2 slidably arranged above the operating table 1 in a rectangular frame shape, a sliding frame 3 slidably arranged inside the lifting frame 2, and a sliding seat 4 slidably arranged in the sliding frame 3. A first motor 5 is installed on the top of the sliding seat 4. The output shaft of the first motor 5 rotates through the sliding seat 4 and is fixed with an engraving and milling cutter. A first cylinder is installed between the lifting frame 2 and the operating table 1. A second cylinder is installed on one side of the lifting frame 2. The telescopic rod of the second cylinder penetrates into the lifting frame 2 and is fixedly connected to the sliding frame 3. A third cylinder is installed on one side of the sliding frame 3. The telescopic rod of the third cylinder penetrates into the sliding frame 3 and is fixedly connected to the sliding seat 4.

[0027] When in use, the first motor 5 is turned on in advance so that the output shaft of the first motor 5 drives the engraving and milling cutter to rotate at high speed, and then the second cylinder is turned on so that the lifting frame 2, the sliding frame 3 and the sliding seat 4 move downward as a whole, causing the engraving and milling cutter to contact the surface of the workpiece, and then the second cylinder and the third cylinder are turned on so that the sliding seat 4 carries the first motor 5 to move forward, backward, left and right, so that the engraving and milling cutter can fully engrave and mill the surface of the workpiece.

[0028] Further, refer to Figure 1 and Figure 5 As shown, it is worth noting that two movable grooves 13 are symmetrically provided on the top surface of the operating table 1, a clamping mechanism is provided on the opening of the movable groove 13, and a power mechanism for actuating the clamping mechanism is provided inside the movable groove 13;

[0029] The clamping mechanism includes a sliding plate 7 vertically arranged above the opening of the movable groove 13. A flip rod 8 is rotatably arranged on the inner wall of the sliding plate 7. A clamping seat 6 is fixed to one end of the flip rod 8 facing the middle of the operating table 1. An extrusion column (not shown) is threaded through the top of the clamping seat 6.

[0030] The power mechanism includes a transmission screw 15 that is laterally rotatably arranged between the inner walls on both sides of the movable groove 13. The rod of the transmission screw 15 is threadedly connected to a movable seat 14 that is fixedly connected to the bottom end of the sliding plate 7. A second motor 16 is installed on one side wall of the operating table 1. The output shaft of the second motor 16 rotates and penetrates into the movable groove 13 and is fixedly connected to one end of the transmission screw 15.

[0031] When performing workpiece engraving and milling operations, the workpiece is placed between the two sets of clamping mechanisms in advance, and then the second motor 16 in the power mechanism is turned on, so that the transmission screw 15 rotates inside the movable groove 13, so that the movable seat 14 slides along the rod of the transmission screw 15 under the threaded structure, causing the sliding plate 7 to carry the clamping seat 6 to slide toward the workpiece until the clamping seat 6 is clamped on the side of the workpiece. In this way, the clamping seats 6 on the two sets of clamping mechanisms cooperate to achieve the clamping effect of the workpiece, and then the knob squeezes the column so that the squeezing column and the workpiece are fully abutted, which can further enhance the fixation of the workpiece;

[0032] And only by rotating the flip rod 8, the clamping base 6 can be rotated with the workpiece, and the angle of the workpiece can be adjusted to meet the engraving and milling processing requirements of different needs.

[0033] Further, refer to Figure 5It is worth noting that an external threaded sleeve 9 and an extrusion ring 11 are sleeved on the body of the flip rod 8. The external threaded sleeve 9 is fixed to the side of the sliding plate 7 facing away from the clamping seat 6. The extrusion ring 11 is slidably arranged on the side of the external threaded sleeve 9 away from the sliding plate 7. A plurality of inclined extrusion sheets 10 are arranged around the inner side of the extrusion ring 11. One end of the extrusion sheet 10 is fixedly connected to the external threaded sleeve 9, and the other end of the extrusion sheet 10 is against the body of the flip rod 8. An internal threaded sleeve 12 fixedly connected to the extrusion ring 11 is threadedly connected to the body of the external threaded sleeve 9.

[0034] After the flip rod 8 is rotated and the angle of the workpiece is adjusted, the knob internal threaded sleeve 12 is then turned to make the internal threaded sleeve 12 slide along the outer wall of the external threaded sleeve 9 toward the side of the sliding plate 7 under the threaded structure. During this process, the extrusion ring 11 synchronizes the internal threaded sleeve 12 to slide toward the sliding plate 7, and then the extrusion ring 11 continuously squeezes the extrusion sheet 10, causing the extrusion sheet 10 to deform under force, thereby enhancing the adhesion effect between the extrusion sheet 10 and the rod body of the flip rod 8, thereby locking the rotated flip rod 8 and the clamping seat 6 as a whole to limit the angle of the workpiece after rotation.

[0035] However, during the engraving and milling operation, the engraving and milling cutter often exerts downward pressure on the workpiece. Once the ends of the workpiece are subjected to force during the engraving and milling process, a certain torsional force is often exerted on the flip rod 8. As a result, when the extrusion sheet 10 is pressed against the body of the flip rod 8, the friction between the flip rod 8 and the extrusion sheet 10 is increased, thereby increasing the degree of friction between the two and reducing the service life.

[0036] For this purpose, refer to Figure 2 As shown, it is worth noting that a supporting mechanism is provided between the two sets of clamping mechanisms;

[0037] The support mechanism includes two top seats 19 that are symmetrically slidably provided through the inner wall of the operating table 1, and a control component for the reverse lifting movement of the two top seats 19 is provided between the two top seats 19;

[0038] By setting up the supporting mechanism, when the workpiece is fixed between the two sets of clamping mechanisms, the two ends of the workpiece can be supported by the two top seats 19 respectively, and then the two top seats 19 cooperate with each other to support the workpiece from both ends, thereby strengthening the strength of the workpiece end to a certain extent, so as to prevent the workpiece end from being directly subjected to force without support, thereby forming a torsional force on the flip rod 8, and increasing the friction between the flip rod 8 and the extrusion piece 10. At the same time, the control component is used to act on the two top seats 19 to perform reverse lifting activities, so that when the workpiece is rotated and adjusted, the two top seats 19 are still used to contact the two ends of the workpiece respectively, and continue to support the two ends of the workpiece, thereby improving the applicability of the device.

[0039] Further, refer to Figure 2-4As shown, it is worth noting that the control component includes two sets of first transmission components symmetrically arranged on the bottom surface of the operating table 1 and a second transmission component located between the two sets of transmission components;

[0040] The first transmission assembly includes two supporting plates 21 symmetrically fixed to the bottom surface of the operating table 1, a transmission rod 22 rotatably arranged between the two supporting plates 21, and a gear 23 tightly sleeved on the rod of the transmission rod 22. A toothed plate 20 meshing with the gear 23 is fixedly embedded on the side surface of the top seat 19;

[0041] The second transmission assembly includes a driven rod 27 arranged transversely in the middle of the lower portion of the operating table 1 and two worms 25 fixed to the ends of the driven rod 27. A bracket 26 fixedly connected to the bottom surface of the operating table 1 is symmetrically mounted on the rod of the driven rod 27. The two worms 25 are respectively located below the two transmission rods 22, and a worm wheel 24 meshing with the worms 25 is tightly mounted on the rod of the transmission rod 22. The two worms 25 have the same spiral direction.

[0042] The second transmission assembly further includes a third motor 17 mounted on the bottom surface of the operating table 1 through a bracket, and a transmission belt 18 is connected between the output shaft of the third motor 17 and the rod body of the driven rod 27;

[0043] When the third motor 17 is turned on, the output shaft of the third motor 17 is driven by the transmission belt 18 to drive the driven rod 27 and the two worm gears 25 as a whole, and then the two worm gears 25 with the same spiral direction are synchronously engaged with the transmission rods 22 on the rod bodies of the transmission rods 22 in the two groups of first transmission components, thereby causing the transmission rods 22 and gears 23 in the two groups of first transmission components to rotate in opposite directions, and then the gear 23 is engaged with the toothed plate 20, causing the two top seats 19 to move up and down in opposite directions.

[0044] The above shows and describes 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 above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable CNC engraving and milling machine, characterized by: The invention comprises an operating table (1) and a carving and milling mechanism arranged above the operating table (1); two movable grooves (13) are symmetrically provided on the top surface of the operating table (1); a clamping mechanism is provided on the opening of the movable groove (13); and a supporting mechanism is provided between the two sets of the clamping mechanisms; The engraving and milling mechanism comprises a lifting frame (2) slidably arranged above the operating table (1) in a rectangular frame shape, a sliding frame (3) slidably arranged inside the lifting frame (2), and a sliding seat (4) slidably arranged inside the sliding frame (3); a first motor (5) is installed on the top of the sliding seat (4); an output shaft of the first motor (5) rotates through the sliding seat (4) and is fixed with an engraving and milling cutter; The clamping mechanism comprises a sliding plate (7) vertically arranged above the opening of the movable groove (13); a flip rod (8) is rotatably arranged in the inner wall of the sliding plate (7); a clamping seat (6) is fixed to one end of the flip rod (8) facing the middle of the operating table (1); and an extrusion column is threaded through the top of the clamping seat (6); The support mechanism comprises two top seats (19) symmetrically slidingly penetrating the inner wall of the operating table (1), a control component for the reverse lifting movement of the two top seats (19) is provided between the two top seats (19), and the control component comprises two groups of first transmission components symmetrically arranged on the bottom surface of the operating table (1) and a second transmission component located between the two groups of transmission components.

2. The angle-adjustable CNC engraving and milling machine according to claim 1, characterized in that: The body of the flip rod (8) is provided with an external threaded sleeve (9) and an extrusion ring (11), the external threaded sleeve (9) is fixed on the side of the sliding plate (7) away from the clamping seat (6), the extrusion ring (11) is slidably arranged on the side of the external threaded sleeve (9) away from the sliding plate (7), and a plurality of inclined extrusion sheets (10) are arranged around the inner side of the extrusion ring (11), one end of the extrusion sheet (10) is fixedly connected to the external threaded sleeve (9), and the other end of the extrusion sheet (10) is against the body of the flip rod (8), and the body of the external threaded sleeve (9) is threadedly connected with an internal threaded sleeve (12) fixedly connected to the extrusion ring (11).

3. The angle-adjustable CNC engraving and milling machine according to claim 1, characterized in that: The first transmission assembly comprises two supporting plates (21) symmetrically fixed to the bottom surface of the operating table (1), a transmission rod (22) rotatably arranged between the two supporting plates (21), and a gear (23) tightly sleeved on the rod body of the transmission rod (22); a toothed plate (20) meshing with the gear (23) is fixedly embedded on the side surface of the top seat (19).

4. The angle-adjustable CNC engraving and milling machine according to claim 3, characterized in that: The second transmission assembly comprises a driven rod (27) arranged transversely in the middle of the lower portion of the operating table (1) and two worms (25) respectively fixed to the two ends of the driven rod (27); a bracket (26) fixedly connected to the bottom surface of the operating table (1) is symmetrically rotatably sleeved on the rod body of the driven rod (27); the two worms (25) are respectively located below the two transmission rods (22); and a worm wheel (24) meshing with the worms (25) is fastened and sleeved on the rod body of the transmission rod (22); and the spiral directions of the two worms (25) are the same.

5. The angle-adjustable CNC engraving and milling machine according to claim 4, characterized in that: The second transmission assembly further comprises a third motor (17) mounted on the bottom surface of the operating table (1) via a bracket, and a transmission belt (18) is connected between the output shaft of the third motor (17) and the rod body of the driven rod (27).

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