Anti-scar device for lower point of engraving machine

Abstract

The utility model relates to engraving machine lower knife point prevents scarring with pressing device, including the pressing mechanism for the plate is pressed tightly in the lower knife position, and the pressing mechanism includes a pressing block and is used for driving the pressing block to move up and down the pressing block drive mechanism, and the engraving machine lower knife point prevents scarring with pressing device still includes the pressing mechanism connection frame for installing the pressing mechanism on the engraving machine head installation foundation, and the pressing mechanism connection frame has XY guide portion for avoiding the restriction engraving machine head movement after the work piece is pressed tightly by the pressing block, and the engraving machine lower knife point prevents scarring with pressing device still includes the connection frame reset mechanism for driving the pressing mechanism reset after lifting the knife. When working, the pressing mechanism starts in the place of 20mm-30mm from the lower knife point that engraving machine cutter head processes, and the work piece is pressed tightly under the descending of the pressing block, under the action of XY guide portion, the pressing mechanism is immobile, and the engraving machine head continues to process, and the pressing block resets when lifting the knife, and under the action of the connection frame reset mechanism, the pressing mechanism resets.

Description

Technical Field

[0001] This utility model belongs to the field of engraving machine auxiliary devices, specifically relating to a material pressing device for preventing scarring at the cutting point of an engraving machine. Background Technology

[0002] During the engraving process, when the workpiece is cut to the cutting point (i.e., when the tool is about to leave the workpiece), the high-speed cutting action between the tool and the workpiece can easily cause local vibration, resulting in scar defects at the cutting point. Most companies use sanders to treat the surface of the sheet metal to remove the scars, which not only extends the processing cycle but may also affect the dimensional accuracy of the workpiece due to excessive sanding, increasing the process cost by more than 30%. Chinese invention patent discloses a vertical engraving machine pressing device and method and a vertical engraving machine (announcement number CN110194016B, announcement date 2024.11.19). The vertical engraving machine pressing device includes a frame, a workpiece table, and a pressing head. The pressing head is located above the workpiece table, and the workpiece can be clamped between the workpiece table and the pressing head. It also includes a telescopic crossbeam and a locking mechanism. The pressing head is installed on the telescopic crossbeam, which can be extended and adjusted along its length. One end of the telescopic crossbeam is connected to one side of the frame through a rotating shaft, and the other end can be extended to the other side of the frame and locked by the locking mechanism to be mounted horizontally on the frame. This type of pressing device can tighten the telescopic beam to prevent it from shaking, but it cannot solve the problem of scarring at the cutting position. Utility Model Content

[0003] The purpose of this invention is to provide a pressure device for preventing scarring at the cutting point of a carving machine, in order to solve the problem of scarring easily occurring at the cutting point of a carving machine.

[0004] To achieve the above objectives, the present invention provides a pressure device for preventing scarring at the cutting point of a carving machine, which adopts the following technical solution: The pressure device for preventing scarring at the cutting point of a carving machine includes a pressure mechanism for pressing the sheet metal at the cutting position. The pressure mechanism includes a pressure block and a pressure block drive mechanism for driving the pressure block to move up and down. The pressure device for preventing scarring at the cutting point of a carving machine also includes a connecting frame for mounting the pressure mechanism on the mounting base of the carving machine head. The connecting frame for the pressure mechanism has an XY guide portion for preventing restriction of the movement of the carving machine head after the pressure block presses the workpiece. The pressure device for preventing scarring at the cutting point of a carving machine also includes a connecting frame reset mechanism for driving the pressure mechanism to reset after the cutting is lifted.

[0005] Beneficial effects: During operation, the clamping mechanism starts when the engraving machine head is 20mm-30mm away from the cutting point. The clamping block moves down to clamp the workpiece. Under the action of the XY guide, the clamping mechanism remains stationary, and the engraving machine head continues processing. When the cutter is lifted, the clamping block moves up to reset. Under the action of the connecting frame reset mechanism, the clamping mechanism resets. Compared with existing technologies, this suppresses cutting vibration to eliminate scarring, eliminates the sanding process, reduces process costs by more than 30%, and avoids dimensional errors caused by sanding.

[0006] Furthermore, the XY guide section includes a connecting frame body, which has a rectangular frame portion. The right side of the rectangular frame portion is connected to the slider of a Y-axis guide rail pair, and an X-axis guide rail pair is provided on the lower front side of the rectangular frame portion. The pressing mechanism is installed on the slider of the X-axis guide rail pair.

[0007] Furthermore, the pressing block driving mechanism includes a vertically arranged pressing cylinder, and the pressing mechanism includes an L-shaped pressing cylinder mounting plate. The pressing cylinder is mounted on the vertical section of the pressing cylinder mounting plate, and the horizontal section of the pressing cylinder mounting plate extends rearward into the rectangular frame portion of the connecting frame body. The connecting frame reset mechanism includes an X-axis reset mechanism set on the horizontal section of the pressing cylinder mounting plate. The X-axis reset mechanism includes two X-axis reset cylinders stacked vertically, and the output ends of the two X-axis reset cylinders are respectively connected to the left inner wall and the right inner wall of the rectangular frame portion.

[0008] Furthermore, a hydraulic damper for shock absorption is provided between the inner left wall and the inner right wall of the rectangular frame portion and the corresponding X-axis reset cylinder.

[0009] Furthermore, a Z-axis guide rail pair is provided on the vertical section of the pressing cylinder mounting plate on the right side of the pressing cylinder. The pressing mechanism also includes a pressing block mounting plate. The right side of the pressing block mounting plate is connected to the slider of the Z-axis guide rail pair, and the upper part of the left side of the pressing block mounting plate is connected to the output end of the pressing cylinder. The pressing block is located at the lower part of the pressing block mounting plate.

[0010] Furthermore, the position of the pressure cylinder can be adjusted vertically on the pressure cylinder mounting plate, and / or the position of the pressure block can be adjusted vertically on the pressure block mounting plate. During use, the height of the pressure block can be adjusted according to the workpiece thickness to accommodate workpieces with a thickness of 5-25mm.

[0011] Furthermore, the bottom of the pressure block, where it is used to clamp the workpiece, is equipped with a rubber buffer pad. This prevents damage to the workpiece and cushions the vibration during downward pressure.

[0012] Furthermore, the connecting frame for the pressing mechanism includes a vertically arranged engraving machine connecting plate, the Y-axis guide rail pair includes two Y-axis guide rails arranged side by side with intervals, the connecting frame reset mechanism includes a Y-axis reset mechanism arranged between the two Y-axis guide rails, the Y-axis reset mechanism includes two Y-axis reset cylinders arranged facing each other, and an ear plate is provided on the rear right side of the rectangular frame portion, the rear part of the ear plate is folded to the right between the output ends of the two Y-axis reset cylinders.

[0013] Furthermore, the engraving machine connection plate is equipped with a photoelectric sensor for detecting the position of the slider of the Y-axis guide rail pair. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the anti-scabbing device for the cutting point of an engraving machine according to this utility model. Figure 1 ;

[0015] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0017] Figure 4 This is a schematic diagram of the structure of a specific embodiment of the pressure device for preventing scarring at the cutting point of an engraving machine according to this utility model. Figure 2 ;

[0018] Figure 5 for Figure 4 A magnified view of a section at point C;

[0019] Figure 6 This is a schematic diagram of the structure of a specific embodiment of the pressure device for preventing scarring at the cutting point of an engraving machine according to this utility model. Figure 3 ;

[0020] Figure 7 for Figure 6 A magnified view of a section at point D;

[0021] Figure 8 This is a structural schematic diagram of the main body of the connecting frame.

[0022] In the diagram: 100-Pressure mechanism, 110-Pressure block, 120-Pressure block drive mechanism, 121-Pressing cylinder, 130-Pressing cylinder mounting plate, 140-Z-guide rail pair, 141-Slider, 150-Pressure block mounting plate, 200-Engraving machine head, 210-Engraving machine head mounting base, 300-Connecting frame for pressure mechanism, 310-Engraving machine connecting plate, 400-Connecting frame body, 410-Rectangular frame part, 411-Ear plate, 510-Y-axis guide rail pair, 511-Slider, 512-Y-axis guide rail, 520-X-axis guide rail pair, 521-Slider, 610-X-axis reset cylinder, 620-Y-axis reset cylinder. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Specific embodiments of the material pressing device for preventing scarring at the cutting point of an engraving machine according to this utility model are as follows: Figures 1 to 8 As shown, the device includes a pressing mechanism 100 for pressing the sheet metal at the cutting position. The pressing mechanism 100 includes a pressing block 110 and a pressing block drive mechanism 120 for driving the pressing block 110 to move up and down. The pressing device for preventing scarring at the cutting point of the engraving machine also includes a pressing mechanism connecting frame 300 for mounting the pressing mechanism 100 on the engraving machine head mounting base 210.

[0025] The connecting frame 300 for the pressure mechanism has an XY guide portion for preventing restriction of the movement of the engraving machine head 200 after the pressure block 110 clamps the workpiece. The pressure device for preventing scarring at the cutting point of the engraving machine also includes a connecting frame reset mechanism for resetting the pressure mechanism 100 after the cutting tool is lifted.

[0026] The XY guide section includes a connecting frame body 400, which has a rectangular frame portion 410. The right side of the rectangular frame portion 410 is connected to the slider 511 of a Y-axis guide rail pair 510. An X-axis guide rail pair 520 is provided on the lower front side of the rectangular frame portion 410. The pressing mechanism 100 is installed on the slider 521 of the X-axis guide rail pair 520.

[0027] The pressing block drive mechanism 120 includes a vertically arranged pressing cylinder 121, and the pressing mechanism 100 includes an L-shaped pressing cylinder mounting plate 130. The pressing cylinder 121 is mounted on the vertical section of the pressing cylinder mounting plate 130, and the horizontal section of the pressing cylinder mounting plate 130 extends rearward into the rectangular frame portion 410.

[0028] The connecting frame reset mechanism includes an X-axis reset mechanism set on the horizontal section of the pressing cylinder mounting plate 130. The X-axis reset mechanism includes two X-axis reset cylinders 610 stacked one above the other. The output ends of the two X-axis reset cylinders 610 are respectively connected to the left inner wall and the right inner wall of the rectangular frame part 410.

[0029] A Z-guide rail pair 140 is provided on the vertical section of the pressing cylinder mounting plate 130 to the right of the pressing cylinder 121. The pressing mechanism 100 also includes a pressing block mounting plate 150. The right side of the pressing block mounting plate 150 is connected to the slider 141 of the Z-guide rail pair 140, and the upper part of the left side of the pressing block mounting plate 150 is connected to the output end of the pressing cylinder 121. The pressing block 110 is located at the lower part of the pressing block mounting plate 150.

[0030] The lowering cylinder 121 is mounted vertically on the lowering cylinder mounting plate 130, and the pressure block 110 is mounted vertically on the pressure block mounting plate 150. During use, the height of the pressure block 110 can be adjusted according to the workpiece thickness to accommodate workpieces with a thickness of 5-25mm.

[0031] The connecting frame 300 for the pressing mechanism includes a vertically arranged engraving machine connecting plate 310. The Y-axis guide rail pair 510 includes two Y-axis guide rails 512 arranged side by side with intervals. The connecting frame reset mechanism includes a Y-axis reset mechanism arranged between the two Y-axis guide rails 512. The Y-axis reset mechanism includes two Y-axis reset cylinders 620 arranged facing each other. A lug 411 is provided on the rear right side of the rectangular frame portion 410. The rear part of the lug 411 is folded to the right between the output ends of the two Y-axis reset cylinders 620.

[0032] During operation, the pressure mechanism 100 is activated when the engraving machine head is 20mm-30mm away from the cutting point. The pressure block 110 moves down to clamp the workpiece. Under the action of the XY guide section, the pressure mechanism 100 remains stationary, and the engraving machine head 200 continues processing. When the cutter is lifted, the pressure block 110 moves up to reset. The two X-axis reset cylinders 610 work simultaneously to push the pressure mechanism 100 to the center position in the left-right direction. At the same time, the two Y-axis reset cylinders 620 work simultaneously to push the pressure mechanism 100 to the initial position in the front-back direction, achieving precise centering and resetting the pressure mechanism 100. Compared with existing technologies, this effectively suppresses cutting vibration to eliminate scarring, eliminates the sanding process, reduces process costs by more than 30%, and avoids dimensional errors caused by sanding.

[0033] In other implementations, the difference from the specific embodiments described above is that a hydraulic damper for shock absorption is provided between the inner left wall and the inner right wall of the rectangular frame portion and the corresponding X-axis reset cylinder. Additionally, a rubber buffer pad is provided on the bottom of the pressure block for clamping the workpiece to prevent damage and to buffer downward vibration. Simultaneously, a photoelectric sensor is provided on the engraving machine connecting plate to detect the position of the slider of the Y-axis guide rail pair, ensuring positioning accuracy.

[0034] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A material pressing device for preventing scarring at the cutting point of an engraving machine, characterized in that: The device includes a pressing mechanism for clamping the sheet metal at the cutting position. The pressing mechanism includes a pressing block and a pressing block drive mechanism for moving the pressing block up and down. The pressing device for preventing scarring at the cutting point of the engraving machine also includes a connecting frame for mounting the pressing mechanism on the mounting base of the engraving machine head. The connecting frame for the pressing mechanism has an XY guide portion for preventing restriction of the movement of the engraving machine head after the pressing block clamps the workpiece. The pressing device for preventing scarring at the cutting point of the engraving machine also includes a connecting frame reset mechanism for resetting the pressing mechanism after the cutting is lifted.

2. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 1, characterized in that: The XY guide section includes a connecting frame body, which has a rectangular frame portion. The right side of the rectangular frame portion is connected to the slider of a Y-axis guide rail pair. An X-axis guide rail pair is provided on the lower front side of the rectangular frame portion, and the pressing mechanism is installed on the slider of the X-axis guide rail pair.

3. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 2, characterized in that: The pressing block drive mechanism includes a vertically arranged pressing cylinder. The pressing mechanism includes an L-shaped pressing cylinder mounting plate. The pressing cylinder is mounted on the vertical section of the pressing cylinder mounting plate. The horizontal section of the pressing cylinder mounting plate extends rearward into the rectangular frame portion of the connecting frame body. The connecting frame reset mechanism includes an X-axis reset mechanism set on the horizontal section of the pressing cylinder mounting plate. The X-axis reset mechanism includes two X-axis reset cylinders stacked vertically. The output ends of the two X-axis reset cylinders are respectively connected to the left inner wall and the right inner wall of the rectangular frame portion.

4. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 2, characterized in that: A hydraulic damper for shock absorption is provided between the inner left wall and the inner right wall of the rectangular frame and the corresponding X-axis reset cylinder.

5. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 3, characterized in that: The vertical section of the pressing cylinder mounting plate has a Z-guide rail pair on the right side of the pressing cylinder. The pressing mechanism also includes a pressing block mounting plate. The right side of the pressing block mounting plate is connected to the slider of the Z-guide rail pair, and the upper part of the left side of the pressing block mounting plate is connected to the output end of the pressing cylinder. The pressing block is located at the lower part of the pressing block mounting plate.

6. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 5, characterized in that: The position of the pressure cylinder is adjustable up and down on the pressure cylinder mounting plate, and / or the position of the pressure block is adjustable up and down on the pressure block mounting plate.

7. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 6, characterized in that: The bottom part of the pressure block used to press the workpiece is equipped with a rubber buffer pad.

8. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 2, characterized in that: The connecting frame for the pressing mechanism includes a vertically arranged engraving machine connecting plate. The Y-axis guide rail pair includes two Y-axis guide rails arranged side by side with intervals. The connecting frame reset mechanism includes a Y-axis reset mechanism arranged between the two Y-axis guide rails. The Y-axis reset mechanism includes two Y-axis reset cylinders arranged facing each other. A lug is provided on the rear right side of the rectangular frame portion. The rear part of the lug is folded to the right between the output ends of the two Y-axis reset cylinders.

9. The material pressing device for preventing scarring at the cutting point of an engraving machine according to claim 8, characterized in that: The engraving machine's connecting plate is equipped with a photoelectric sensor for detecting the position of the slider of the Y-axis guide rail pair.

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