Improved precision engraving machine

Abstract

This utility model discloses an improved engraving machine, including a base and a gantry frame mounted on the base. A crossbeam is formed at the top of the gantry frame. The machine also includes an X-axis drive mechanism, a sliding plate, and a telescopic protective cover. A cavity for accommodating the X-axis drive mechanism is formed in the side wall of the crossbeam. The sliding plate is movably mounted on the crossbeam via the X-axis drive mechanism. Motor end baffles are respectively provided at both ends of the crossbeam. An upper guard plate is provided on the top surface of the crossbeam, and a lower guard plate is provided on the lower side wall of the crossbeam. The telescopic protective cover includes an inner cover and an outer cover covering one side of the cavity. The front end of the inner cover is detachably connected to the motor end baffle, and the outer cover is movably mounted on the inner cover. The rear end of the outer cover is detachably connected to the sliding plate. The upper ends of both the inner and outer covers are movably connected to the upper guard plate, and the lower ends of both are movably connected to the lower guard plate. This utility model can achieve tight protection of the cavity and simultaneously complete waste removal during operation.

Description

Technical Field

[0001] This utility model relates to the field of engraving machine technology, specifically an improved engraving machine. Background Technology

[0002] A CNC engraving machine is a type of CNC machine tool capable of non-contact cutting and drilling of metal, non-metal sheets, and pipes. It is particularly suitable for laser cutting of materials such as aluminum alloys, glass, plastics, and acrylic sheets. The processing environment of a CNC engraving machine is relatively harsh, generating a large amount of debris, residue, and waste liquid during processing. Although traditional CNC engraving machines employ protective covers to safeguard the internal drive mechanisms, such as ball screw drives, these covers not only hinder the maintenance of the spindle but also allow debris, residue, and waste liquid to still penetrate the ball screw drives through the connection points between the covers and other structures, causing jamming and damage to the ball screw drives. Furthermore, debris and waste materials tend to accumulate at the connections between the covers and other structures, making cleaning difficult. Utility Model Content

[0003] The purpose of this invention is to provide an improved engraving machine that can provide strict protection for the X-axis drive mechanism in the accommodating cavity, preventing waste materials such as chips, residues, and waste liquids from entering the accommodating cavity; at the same time, it can complete the waste cleaning work during operation, so as to solve the problem mentioned in the background art that chips, residues, and waste liquids that intrude into the drive mechanism such as the ball screw drive pair can easily cause jamming and damage to the ball screw drive pair.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An improved engraving machine includes a base and a gantry frame mounted on the base. A crossbeam is formed at the top of the gantry frame. The machine also includes an X-axis drive mechanism, a sliding plate, and a telescopic protective cover. The side wall of the crossbeam has a cavity for accommodating the X-axis drive mechanism. The sliding plate is movably mounted on the crossbeam via the X-axis drive mechanism. Motor end baffles are respectively provided at both ends of the crossbeam. An upper guard plate is provided on the top surface of the crossbeam, and a lower guard plate is provided on the lower side wall of the crossbeam. The telescopic protective cover includes an inner cover and an outer cover covering one side of the cavity. The front end of the inner cover is detachably connected to the motor end baffle. The outer cover is movably mounted on the inner cover. The rear end of the outer cover is detachably connected to the sliding plate. The upper ends of the inner cover and the outer cover are respectively movably connected to the upper guard plate, and the lower ends of the inner cover and the outer cover are respectively movably connected to the lower guard plate.

[0006] Preferably, the top of the upper guard plate is bent upwards toward the top of the inner cover to form an inner cover portion, and the top of the inner cover is bent to one side of the upper guard plate to form a side extension portion located below the inner cover portion; an upper cover plate is laid on the top surface of the crossbeam, and the upper cover plate is bent upwards toward the edge of the inner cover to form a first inner baffle portion.

[0007] Preferably, the side extension bends downward to form a second inner stop that abuts against one side of the first inner stop, and the upper guard plate, inner cover, inner cover, side extension, first inner stop, and second inner stop form a tortuous labyrinth structure.

[0008] Preferably, the top of the outer cover is bent upwards towards the inner cover to form an outer cover portion, and the outer cover portion is bent downwards to form an outer stop portion that abuts against the outside of the upper guard plate.

[0009] Preferably, one edge of the lower guard plate extends upward to form a third inner baffle, and a recessed groove is formed on one side of the third inner baffle on the top surface of the lower guard plate, with the bottom end of the inner cover extending into the groove.

[0010] Preferably, the bottom wall of the groove has several chip discharge ports.

[0011] Preferably, the lower guard plate has a guide groove on the side away from the third inner baffle, and the bottom end of the outer cover is bent down to the side of the lower guard plate to form a lower baffle that extends into the guide groove.

[0012] Preferably, the improved engraving machine includes a Z-axis drive mechanism, a mounting plate, a spindle, and a spindle cover. The mounting plate is movably mounted on a sliding plate via the Z-axis drive mechanism, the spindle is mounted on the mounting plate, and the spindle cover is placed on the outer periphery of the spindle.

[0013] Preferably, the base is provided with an outer protective cover on its peripheral edge, and the lower inner wall of the outer protective cover is provided with a first slope to facilitate the cleaning of residue.

[0014] Preferably, the top surface of the base has a second slope, and a discharge port is provided at the lowest point of the second slope. A discharge hopper is provided at the discharge port to receive waste materials and waste liquid.

[0015] Compared with the prior art, the beneficial effects of this utility model are: during the process of the slide plate driving the outer cover to move, the outer cover and the inner cover always maintain the state of shielding the accommodating cavity, thereby providing strict protection for the X-axis drive mechanism in the accommodating cavity. The upper and lower protective plates can prevent debris, residues, waste liquids and other waste materials from entering the accommodating cavity. At the same time, during the movement of the outer cover, it will push away the debris, residues and other waste materials accumulated on the inner cover, upper protective plate and lower protective plate, thereby completing the waste cleaning operation during the processing. Attached Figure Description

[0016] Figure 1 This is a perspective view of an improved engraving machine according to the present invention;

[0017] Figure 2 This is a perspective view of the internal structure of an improved engraving machine according to this utility model;

[0018] Figure 3 This is a perspective view of the internal structure of an improved engraving machine according to this utility model.

[0019] Figure 4 This is a perspective view of the crossbeam, sliding plate, and telescopic protective cover of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0022] Figure 7 This is a perspective view of the X-axis drive mechanism of this utility model.

[0023] In the diagram: 1. Base; 2. Gantry frame; 21. Crossbeam; 22. Receiving cavity; 3. X-axis drive mechanism; 31. Guide rail; 32. Servo motor; 33. Ball screw; 4. Slide plate; 5. Telescopic protective cover; 51. Inner cover; 511. Side extension; 512. Second inner baffle; 52. Outer cover; 521. Outer cover; 522. Outer baffle; 523. Lower baffle; 6. Motor end baffle; 7. Upper guard plate; 71. Inner cover; 8. Lower guard plate; 81. Third inner baffle; 82. Groove; 83. Chip discharge port; 84. Guide groove; 9. Upper cover plate; 91. First inner baffle; 10. Z-axis drive mechanism; 11. Hanging plate; 12. Main shaft; 13. Shaft guard; 14. Worktable; 15. Outer protective cover; 16. First ramp; 17. Second ramp; 18. Discharge hopper trough. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "more than" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1-7 An improved engraving machine includes a base 1 and a gantry frame 2 mounted on the base 1. A crossbeam 21 is formed at the top of the gantry frame 2. The improved engraving machine also includes an X-axis drive mechanism 3, a sliding plate 4, and a telescopic protective cover 5. The side wall of the crossbeam 21 has a receiving cavity 22 for accommodating the X-axis drive mechanism 3. The sliding plate 4 is movably mounted on the crossbeam 21 via the X-axis drive mechanism 3 and extends along the X-axis direction. The X-axis drive mechanism 3 drives the sliding plate 4 to move along the X-axis direction on the crossbeam 21.

[0027] Please see Figure 2 as well as Figure 4The crossbeam 21 has motor end baffles 6 at both ends, an upper guard plate 7 on its top surface, and a lower guard plate 8 on its lower sidewall. The telescopic protective cover 5 includes an inner cover 51 and an outer cover 52 covering one side of the accommodating cavity 22. The front end of the inner cover 51 is detachably connected to the motor end baffle 6, and the outer cover 52 is movably mounted on the inner cover 51. The rear end of the outer cover 52 is detachably connected to the sliding plate 4. The upper ends of both the inner cover 51 and the outer cover 52 are movably connected to the upper guard plate 7, and the lower ends of both are movably connected to the lower guard plate 8. In this embodiment, the front end of the inner cover 51 is fixed to the motor end baffle 6 with bolts; the rear end of the outer cover 52 is fixed to the sliding plate 4 with bolts.

[0028] In this invention, during the movement of the outer cover 52 driven by the slide plate 4, the outer cover 52 and the inner cover 51 always maintain a state of shielding the accommodating cavity 22, thereby providing strict protection for the X-axis drive mechanism 3 inside the accommodating cavity 22. The upper guard plate 7 and the lower guard plate 8 can prevent debris, residue, waste liquid and other waste materials from entering the accommodating cavity 22. At the same time, during the movement, the outer cover 52 will push away the debris, residue and other waste materials accumulated on the inner cover 51, the upper guard plate 7 and the lower guard plate 8, thereby completing the waste cleaning operation during the processing.

[0029] Please see Figure 4-5 The top of the upper guard plate 7 bends upward toward the top of the inner cover 51 to form an inner cover 71. The top of the inner cover 51 bends to one side of the upper guard plate 7 to form a side extension 511 located below the inner cover 71. An upper cover plate 9 is laid on the top surface of the crossbeam 21. The upper cover plate 9 bends upward toward the edge of the inner cover 51 to form a first inner baffle 91. The side extension 511 bends downward to form a second inner baffle 512 that abuts against one side of the first inner baffle 91. The upper guard plate 7, the inner cover 71, the inner cover 51, the side extension 511, the first inner baffle 91, and the second inner baffle 512 form a tortuous labyrinth structure. This labyrinth structure can prevent debris, residue, and other waste materials from entering the inner cover 51, thereby avoiding obstruction and damage to the X-axis drive mechanism 3 in the accommodating cavity 22.

[0030] Please see Figure 4 The top of the outer cover 52 bends upward toward the inner cover 71 to form an outer cover 521. The outer cover 521 bends downward to form an outer baffle 522 that abuts against the outside of the upper guard plate 7. The outer baffle 522 can prevent debris, residue, and other waste materials from entering between the outer cover 52 and the inner cover 51 from the side of the crossbeam 21. In this embodiment, when the outer cover 52 extends or retracts relative to the inner cover 51, the outer cover 521 can push away waste materials and dust on the inner cover 71, preventing the accumulation of waste materials and dust.

[0031] Please see Figure 4 as well as Figure 6The lower guard plate 8 extends upward from one edge to form a third inner baffle 81. A recessed groove 82 is formed on one side of the third inner baffle 81 on the top surface of the lower guard plate 8. The bottom end of the inner cover 51 extends into the groove 82. The inner cover 51 and the third inner baffle 81 prevent debris, residue, and other waste from entering the receiving cavity 22. In this embodiment, the bottom wall of the groove 82 has several chip discharge ports 83. When too much waste accumulates in the groove 82, the waste can be discharged from the chip discharge ports 83.

[0032] The lower guard plate 8 has a guide groove 84 on the side away from the third inner baffle 81. The bottom end of the outer cover 52 is bent to the side of the lower guard plate 8 to form a lower baffle 523 that extends into the guide groove 84. The lower baffle 523 blocks debris, residue and other waste materials from entering between the outer cover 52 and the inner cover 51.

[0033] Please see Figure 4 The improved engraving machine includes a Z-axis drive mechanism 10, a mounting plate 11, a spindle 12, and a shaft cover 13. The mounting plate 11 is movably mounted on a sliding plate 4 via the Z-axis drive mechanism 10, extending along the Z-axis direction. The Z-axis drive mechanism 10 drives the mounting plate 11 to move up and down along the Z-axis direction on the sliding plate 4. The spindle 12 is mounted on the mounting plate 11, and the shaft cover 13 covers the outer periphery of the spindle 12. In this embodiment, a side baffle extending to one side of the mounting plate 11 is provided on the side wall of the sliding plate 4 to prevent debris, residue, and other waste materials from entering the Z-axis drive mechanism 10.

[0034] Please see Figure 7 The X-axis drive mechanism 3 includes guide rails 31, a servo motor 32, a ball screw 33, and a nut seat (not shown). The two guide rails 31 are arranged parallel to each other on the side wall of the crossbeam 21, located above and below the accommodating cavity 22, respectively. The servo motor 32 is installed inside the accommodating cavity 22. A motor end baffle 6 forms a mounting cavity to accommodate the servo motor 32. The ball screw 33 is rotatably mounted inside the accommodating cavity 22 via bearings, extending along the length of the cavity 22. The output shaft of the servo motor 32 is connected to one end of the ball screw 33. The nut seat is threaded onto the ball screw 33 and is connected to the side wall of the slide plate 4. In this embodiment, the Z-axis drive mechanism 10 has the same structure as the X-axis drive mechanism, and its principle will not be described further here.

[0035] Please see Figure 1-3The base 1 is provided with a worktable 14 located below the crossbeam 21 for placing workpieces. When the spindle 12 needs to move to the preset position of the worktable 14 for operation, the servo motor 32 drives the ball screw 33 to rotate. Under the action of the rotating screw, the nut seat moves along the screw axis, thereby driving the slide plate 4 and the hanging plate 11 on the slide plate 4 and the spindle 12 to move along the X-axis, so that the spindle 12 moves to the preset position of the worktable 14. Then, the hanging plate 11 and the spindle 12 are driven to descend by the Z-axis drive mechanism 10 so that the spindle 12 can process the workpiece on the worktable 14.

[0036] Please see Figure 1 The base has an outer protective cover 15 around its perimeter, and the lower inner wall of the outer protective cover 15 is provided with a first ramp 16 for easy cleaning of residue; please refer to Figure 3 The base 1 has a second slope 17 on its top surface. The lowest point of the second slope 17 is provided with a discharge port. The discharge port is provided with a discharge hopper 18 for receiving waste materials and waste liquid.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved engraving machine, comprising a base (1) and a gantry frame (2) mounted on the base (1), wherein a crossbeam (21) is formed at the top of the gantry frame (2), characterized in that: It also includes an X-axis drive mechanism (3), a sliding plate (4), and a telescopic protective cover (5). The side wall of the crossbeam (21) has a cavity (22) for accommodating the X-axis drive mechanism (3). The sliding plate (4) is movably mounted on the crossbeam (21) via the X-axis drive mechanism (3). Motor end baffles (6) are respectively provided at both ends of the crossbeam (21). An upper guard plate (7) is provided on the top surface of the crossbeam (21). A lower guard plate (8) is provided on the lower side wall of the crossbeam (21). The telescopic protective cover... The cover (5) includes an inner cover (51) and an outer cover (52) covering one side of the accommodating cavity (22). The front end of the inner cover (51) is detachably connected to the motor end baffle (6). The outer cover (52) is movably covered on the inner cover (51). The rear end of the outer cover (52) is detachably connected to the slide plate (4). The upper ends of the inner cover (51) and the outer cover (52) are movably connected to the upper guard plate (7) respectively. The lower ends of the inner cover (51) and the outer cover (52) are movably connected to the lower guard plate (8) respectively.

2. The improved engraving machine according to claim 1, characterized in that: The top of the upper guard plate (7) bends upward toward the top of the inner cover (51) to form an inner cover (71), and the top of the inner cover (51) bends toward the side of the upper guard plate (7) to form a side extension (511) located below the inner cover (71); the top surface of the crossbeam (21) is covered with an upper cover plate (9), and the upper cover plate (9) bends upward toward the edge of the inner cover (51) to form a first inner baffle (91).

3. The improved engraving machine according to claim 2, characterized in that: The side extension (511) bends downward to form a second inner stop (512) that abuts against one side of the first inner stop (91). A tortuous maze structure is formed between the upper guard plate (7), the inner cover (71), the inner cover (51), the side extension (511), the first inner stop (91), and the second inner stop (512).

4. The improved engraving machine according to claim 2, characterized in that: The top of the outer cover (52) bends upward toward the inner cover (71) to form an outer cover (521), and the outer cover (521) bends downward to form an outer stop (522) that abuts against the outside of the upper guard plate (7).

5. The improved engraving machine according to any one of claims 1-4, characterized in that: The lower guard plate (8) extends upward from one edge to form a third inner baffle (81). A recessed groove (82) is provided on the top surface of the lower guard plate (8) on one side of the third inner baffle (81). The bottom end of the inner cover (51) extends into the groove (82).

6. The improved engraving machine according to claim 5, characterized in that: The bottom wall of the groove (82) is provided with several chip discharge ports (83).

7. The improved engraving machine according to claim 5, characterized in that: The lower guard plate (8) has a guide groove (84) on the side away from the third inner baffle (81), and the bottom end of the outer cover (52) is bent down to the side of the lower guard plate (8) to form a lower baffle (523) that extends into the guide groove (84).

8. The improved engraving machine according to any one of claims 1-4, characterized in that: It includes a Z-axis drive mechanism (10), a mounting plate (11), a main shaft (12), and a shaft cover (13). The mounting plate (11) is movably mounted on the slide plate (4) via the Z-axis drive mechanism (10). The main shaft (12) is mounted on the mounting plate (11), and the shaft cover (13) covers the outer periphery of the main shaft (12).

9. The improved engraving machine according to any one of claims 1-4, characterized in that: The base (1) is provided with an outer protective cover (15) on its periphery, and the lower inner wall of the outer protective cover (15) is provided with a first slope (16) to facilitate cleaning of residue.

10. The improved engraving machine according to claim 9, characterized in that: The base (1) has a second slope (17) on its top surface. A discharge port is provided at the lowest point of the second slope (17). A discharge hopper (18) for receiving waste materials and waste liquid is provided at the discharge port.

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