Intelligent multi-head engraving and milling machine with automatic chip removal and rapid tool changing functions

Abstract

The utility model relates to the technical field of automatic engraving and milling machining, in particular to an intelligent multi-head engraving and milling machine with automatic chip removal and quick tool changing functions, which comprises a multi-shaft engraving and milling mechanism, a base, portal frames fixedly erected on two sides of the base and a workbench slidably connected to the end face of the base. The multi-axis fine carving mechanism is installed on the side, close to the workbench, of the portal frame, a movable tool magazine and a driving assembly are further arranged on the base, a tool storage disc and an automatic tool preparation mechanism are further arranged on the side, back to the workbench, of the portal frame, and a chip removal mechanism used for automatically removing chips on the base is further arranged on the base. A large number of tools can be stored through the tool storage disc fixedly connected with the portal frame, when the engraving and milling mechanism works, the movable tool magazine can slide to the side, close to the tool storage disc, of the portal frame, then appropriate tools in the tool storage disc are selected through the automatic tool preparation mechanism and placed into the movable tool magazine and the like to be replaced when the engraving and milling mechanism stops working, and the tool replacement efficiency is improved; and the chip removal mechanism on the base can automatically discharge chips.

Description

Technical Field

[0001] The utility model relates to the technical field of automated fine engraving processing, in particular to an intelligent multi-head fine engraving machine with automatic chip removal and rapid tool change. Background Art

[0002] The engraving machine is a high-precision CNC engraving machine, also known as a CNC wire cutting machine. It is a machine that uses a digital command control system and computer programming to achieve the processing of various complex graphics and structures. It has high precision and fast speed, and can meet various high-precision and high-difficulty engraving processing needs.

[0003] Therefore, a multi-axis engraving machine has appeared on the market. It can perform engraving through the cooperation of multiple spindles, but it is found that the speed of changing tools in ordinary tool magazines is too slow and the number of spare tools is too small; and the existing multi-axis engraving machine only uses cutting fluid to flush chips, which easily causes processing debris to accumulate on the machine table, making it inconvenient to clean manually. Utility Model Content

[0004] In order to solve the problems of the prior art, the utility model provides an intelligent multi-head precision engraving machine with automatic chip removal and quick tool change, aiming to solve the problems of low tool change efficiency and easy accumulation of debris in the existing multi-axis precision engraving machines.

[0005] The solution adopted by the utility model to solve its technical problems is: an intelligent multi-head precision engraving machine with automatic chip removal and fast tool change, including a multi-axis precision engraving mechanism, and also including a base, a gantry fixedly mounted on both sides of the base and a workbench slidably connected to the end surface of the base, the multi-axis precision engraving mechanism is installed on the gantry close to the side of the workbench, the base is also provided with a mobile tool magazine for simultaneously replacing multi-axis tools and a driving component connected to the mobile tool magazine and driving the mobile tool magazine to slide along the end surface of the base, the gantry is also provided with a tool storage disc and an automatic tool preparation mechanism for taking the tools in the tool storage disc into the mobile tool magazine on the side facing away from the workbench, and the base is also provided with a chip removal mechanism for automatically removing debris on the base.

[0006] By adopting the above technical scheme, a large number of cutting tools can be stored by the tool storage tray fixedly connected to the gantry. When the fine carving mechanism is working, the mobile tool magazine can slide to the side of the gantry close to the tool storage tray, and then the automatic tool preparation mechanism selects the appropriate tool in the tool storage tray and puts it into the mobile tool magazine. When the fine carving mechanism stops working, the tool can be changed to improve the tool changing efficiency. The chip removal mechanism installed on the base can automatically discharge the debris dropped on the base.

[0007] Furthermore, the automatic tool preparation mechanism includes a fixed frame fixed to the side of the gantry beam facing away from the workbench, a movable frame movably connected to the fixed frame, and a tool changing frame slidably connected to the movable frame, the movable frame is a U-shaped structure, and the bottom of the tool changing frame is provided with a plurality of clamps for clamping the tool handle for tool changing, the bottom of the fixed frame is also provided with a Y-axis slide rail, the bottom wall of the movable frame is provided with a Y-axis slide seat slidably connected to the Y-axis slide rail, and the fixed frame is fixedly provided with a Y-axis motor for driving the movable frame and the tool changing frame to move forward and backward along the fixed frame.

[0008] By adopting the above technical solution, the Y-axis motor drives the movable frame and the tool changing frame to move along the Y-axis direction of the bottom slide rail of the fixed frame, so that the clamping claw can adjust its position in the Y-axis direction.

[0009] Furthermore, an X-axis slide rail is provided on the bottom wall of the movable frame, and an X-axis slide block slidably connected to the X-axis slide rail and an X-axis motor for driving the movable frame and the tool changing frame to move left and right along the fixed frame are provided under the Y-axis slide seat.

[0010] By adopting the above technical solution, the x-axis motor drives the sliding block to slide horizontally along the x-axis slide rail at the bottom of the movable frame, so that the clamping claw can slide left and right to adjust the position.

[0011] Furthermore, Z-axis slide rails are provided on both sides of the tool changing frame, and a Z-axis slide seat and a Z-axis motor for driving the tool changing frame to move up and down along the fixed frame are provided on the end surface where the movable frame and the tool changing frame are connected.

[0012] By adopting the above technical solution, the z-axis motor drives the tool changer to move up and down the z-axis along the movable frame.

[0013] Furthermore, the mobile tool magazine includes a plurality of movable disc tool holders corresponding to each spindle, the movable disc tool holder includes a tool unloading portion and a tool loading portion for providing different tools for the multi-axis precision engraving mechanism, and a position sensor is also provided on the movable disc tool holder.

[0014] By adopting the above technical solution, the position sensor detects the spindle position, causing the mobile tool magazine to stop moving under the spindle, and each movable tool holder is aligned with the spindle respectively; then the tool under the spindle is removed by relying on the clamping claws on the tool unloading part, and then the tool loading part is adjusted to align with the spindle for tool change.

[0015] Furthermore, a tool setting instrument is fixedly provided on one side of the workbench close to the mobile tool magazine.

[0016] By adopting the above technical solution, when the tool magazine is moved for tool change, the tool setting instrument on the adjacent workbench can assist in tool change, thereby improving the accuracy and efficiency of tool change.

[0017] Furthermore, the base includes a bearing portion and a sliding portion arranged on the bearing portion for sliding connection between the workbench and the mobile tool magazine, base slide rails are arranged on both sides of the sliding portion, and a tool magazine slide seat is arranged on the end surface where the mobile tool magazine is connected to the sliding portion.

[0018] By adopting the above technical solution, the bearing part uses the bottom bearing feet to fix the base to the ground, and the engraving machine does not move when working. The tool magazine slide is slidably connected with the base slide rail on the sliding part, so that the tool magazine can move along the end surface of the base.

[0019] Furthermore, the driving assembly includes a driving motor fixedly mounted on the sliding portion and a reciprocating screw fixedly connected to an output shaft of the driving motor. A connecting block is fixedly mounted at the bottom of the mobile tool magazine. The reciprocating screw is passed through the connecting block and is threadedly connected to the connecting block.

[0020] By adopting the above technical solution, the driving motor on the sliding part drives the reciprocating screw to rotate forward or reverse, thereby driving the mobile tool magazine to move in two directions.

[0021] Furthermore, the chip removal mechanism includes chip removal grooves arranged on both sides of the sliding part, a spiral chip removal rod arranged in the chip removal groove, and a chip rolling rod motor fixedly arranged at one end of the chip removal groove for driving the spiral chip removal rod to spirally remove chips.

[0022] By adopting the above technical solution, the precision engraving machine generates chips when working, and a large amount of chips are accumulated on the base under the chip flushing of the cutting fluid. When the chip roll motor starts to work, it drives the spiral chip removal rod in the chip removal groove to discharge the accumulated chips out of the base.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. The utility model can accommodate a large number of cutting tools by arranging a cutting tool storage disk on the back side of the gantry, and then the cutting tool that needs to be replaced can be automatically taken out from the cutting tool storage disk and placed in the mobile tool magazine for replacement when the spindle stops working through the cutting tool preparation mechanism while the engraving machine is working, thereby increasing the cutting tool capacity and the tool changing speed.

[0025] 2. The utility model simultaneously disassembles and replaces spindle tools by moving multiple tool magazines aligned with the moving disc tool holders of each spindle.

[0026] 3. The utility model discharges the debris accumulated on the base through the side chip discharge groove and the spiral chip discharge rod arranged in the chip discharge groove.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 is a schematic diagram of a base of this embodiment;

[0030] Figure 3 This is a front schematic diagram of the knife preparation mechanism of this embodiment;

[0031] Figure 4 This is a partial enlarged view of the knife preparation mechanism of this embodiment;

[0032] Figure 5 This is a structural diagram of the mobile tool magazine of this embodiment;

[0033] Figure 6 This is a structural diagram of the movable disc tool holder of this embodiment;

[0034] Figure 7 Schematic diagram of the workbench in this embodiment.

[0035] In the figure: 1. Multi-axis precision engraving mechanism; 2. Base; 21. Bearing part; 22. Sliding part; 221. Base slide rail; 3. Gantry; 4. Workbench; 41. Tool setting instrument; 5. Mobile tool magazine; 51. Moving plate tool holder; 511. Tool unloading part; 512. Tool loading part; 52. Position sensor; 53. Tool magazine slide; 6. Automatic tool preparation mechanism; 61. Fixed frame; 611. Y-axis slide rail; 612. Y-axis motor; 613. X-axis Sliding block; 62, movable frame; 621, Y-axis slide; 622, X-axis slide; 623, X-axis motor; 624, Z-axis slide; 625, Z-axis motor; 63, tool changer; 631, clamping claw; 632, Z-axis slide; 7, driving assembly; 71, driving motor; 72, reciprocating screw rod; 73, connecting block; 8, chip removal mechanism; 81, chip removal groove; 82, spiral chip removal rod; 83, chip reel motor; 9, tool storage disc. DETAILED DESCRIPTION

[0036] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0037] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "top", "inner", "outer" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0038] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0039] like Figures 1 to 7 As shown, an intelligent multi-head precision engraving machine with automatic chip removal and fast tool change includes a multi-axis precision engraving mechanism. Multiple spindles in the multi-head CNC engraving structure can work simultaneously to improve production efficiency. This embodiment also includes a base, a gantry fixedly mounted on both sides of the base, and a workbench slidably connected to the end surface of the base, wherein the multi-axis precision engraving mechanism is installed on the gantry on one side of the workbench, and the base is also provided with a mobile tool magazine for simultaneously replacing multi-axis tools and a driving component connected to the mobile tool magazine and driving the mobile tool magazine to slide along the end surface of the base. The gantry is also provided with a tool storage tray and an automatic tool preparation mechanism for taking tools in the tool storage tray into the mobile tool magazine on the side facing away from the workbench.

[0040] In this embodiment, a base slide rail is arranged on the base, and a driving component is arranged to drive the mobile tool magazine to slide along the end surface of the base to the side of the gantry close to the tool storage disk. The tool storage disk is fixed on the gantry and stores a large number of tools. When the multi-axis precision engraving mechanism cooperates with the workbench to work, the mobile tool magazine moves to the gantry close to the side of the tool storage disk, and the automatic tool preparation mechanism can use the clamping claw to clamp the tool in the tool storage disk and place it in the mobile tool magazine, thereby adding a tool preparation function to the mobile tool magazine, saving the time required to manually add tools to the mobile tool magazine, and improving the tool changing efficiency.

[0041] like Figure 3 and Figure 4As shown, the automatic tool preparation mechanism in this embodiment includes a fixed frame fixed on the side of the gantry beam facing away from the workbench, a movable frame movably connected to the fixed frame, and a tool changing frame slidably connected to the movable frame. The movable frame is a U-shaped structure sleeved on the fixed frame and slidably connected to it at multiple locations, while the tool changing frame is not directly connected to the fixed frame. A plurality of clamps for clamping the tool handle for tool changing are provided at the bottom of the tool changing frame, which can clamp the tool in the tool storage tray and place it in the mobile tool magazine under the control of the control system;

[0042] In order to enable the tool changing rack to move in three axes along the fixed frame and clamp the tool at different positions, a Y-axis slide rail is also provided at the bottom of the fixed frame, and a Y-axis slide seat slidably connected to the Y-axis slide rail is provided on the bottom wall of the movable frame, and a Y-axis motor is fixed in the fixed frame to drive the movable frame and the tool changing rack to move forward and backward along the fixed frame. An X-axis slide rail is also provided on the bottom wall of the movable frame, an X-axis slide block slidably connected to the X-axis slide rail and an X-axis motor for driving the movable frame and the tool changing frame to move left and right along the fixed frame are provided under the Y-axis slide seat; in order to enable the tool changing frame to move up and down along the movable frame, Z-axis slide rails are provided on both sides of the tool changing frame, a Z-axis slide seat is provided on the end surface where the movable frame and the tool changing frame are connected, a gear bar is provided next to the Z-axis slide rail, and a Z-axis motor for driving the tool changing frame to move up and down along the fixed frame is provided on the fixed frame, a gear is provided next to the transmission rod through which the Z-axis motor is installed, and is meshed with the gear bar, and when the Z-axis motor drives the transmission rod to rotate forward or reverse, the tool changing frame can be driven to rise or fall along the movable frame to clamp the tool handle of the tool.

[0043] like Figures 5 to 7 As shown, the mobile tool magazine of this embodiment includes a plurality of movable disc tool holder combinations corresponding to each spindle, and the movable disc tool holder includes a tool unloading part and a tool loading part for providing different tools for the multi-axis precision engraving mechanism. The movable disc tool holder is also provided with a position sensor; the sensor detects the spindle position, and the tool unloading part is an automatic clamp that can first clamp and remove the used tool on the spindle, and then move the mobile tool magazine to align the tool loading part with the spindle for tool loading and tool changing. A tool setting instrument is fixed on the side of the workbench close to the mobile tool magazine. When the mobile tool magazine is changing tools, the tool setting instrument on the adjacent workbench can assist in tool changing, thereby improving the accuracy and efficiency of tool changing.

[0044] like Figure 2As shown, the base of this embodiment includes a bearing part and a sliding part arranged on the bearing part for sliding connection between the workbench and the mobile tool magazine, base slide rails are arranged on both sides of the sliding part, and a tool magazine slide seat adapted to the base slide rails is arranged on the end surface where the mobile tool magazine is connected to the sliding part. The bearing part uses the bottom bearing feet to fix the base to the ground so that the engraving machine does not move during operation, and the tool magazine slide seat is slidably connected to the base slide rail on the sliding part so that the tool magazine can move along the end surface of the base. In addition, the driving parts used to drive the engraving machine to work in this embodiment are all in the base, wherein the driving assembly for driving the mobile tool magazine to move includes a driving motor fixedly arranged on the sliding part and a reciprocating screw fixedly connected to the output shaft of the driving motor, and a connecting block is fixedly arranged at the bottom of the mobile tool magazine, and the reciprocating screw is inserted into the connecting block and is threadedly connected to the connecting block. The driving motor on the sliding part drives the reciprocating screw to rotate forward or reversely to drive the mobile tool magazine to move in two directions.

[0045] Considering that the existing fine engraving machines use chip flushing fluid for chip cleaning, resulting in a large amount of debris accumulating on the base; this embodiment not only sets a water spray splitter and a sprayer on the fine engraving mechanism, but also sets a chip removal mechanism on the base, which includes a chip removal groove arranged on both sides of the sliding part, a spiral chip removal rod arranged in the chip removal groove, and a chip rolling rod motor fixed at one end of the chip removal groove for driving the spiral chip removal rod to spirally remove chips. Through the chip removal mechanism, the chips generated when the fine engraving machine is working, a large amount of chips are accumulated on the base under the chip flushing of the cutting fluid, and when the chip rolling rod motor starts to work, it drives the spiral chip removal rod in the chip removal groove to discharge the accumulated chips out of the base.

[0046] The working principle of this embodiment is as follows: a tool storage disk is arranged on the back side of the gantry to accommodate a large number of tools, and the tool preparation mechanism can automatically take out the tools that need to be replaced from the tool storage disk and put them into the mobile tool magazine for replacement when the spindle stops working while the engraving machine is working, thereby increasing the tool capacity and tool change speed. The spindle tools can be disassembled and replaced at the same time by aligning multiple movable disk tool holders of the mobile tool magazine with each spindle. The debris accumulated on the base is discharged through the side chip removal groove and the spiral chip removal rod arranged in the chip removal groove.

[0047] The embodiments described above are only preferred implementation modes of the present utility model and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and modifications made by technicians in this field on the basis of the utility model shall fall within the protection scope of the present utility model.

Claims

1. An intelligent multi-head precision engraving machine with automatic chip removal and rapid tool change, including a multi-axis precision engraving mechanism, characterized in that: The invention also includes a base, a gantry fixedly mounted on both sides of the base and a workbench slidably connected to the end surface of the base. The multi-axis precision carving mechanism is installed on the gantry close to the workbench. The base is also provided with a mobile tool magazine for simultaneously replacing multi-axis tools and a driving component connected to the mobile tool magazine and driving the mobile tool magazine to slide along the end surface of the base. The gantry is also provided with a tool storage disk and an automatic tool preparation mechanism for taking the tools in the tool storage disk into the mobile tool magazine on the side facing away from the workbench. The base is also provided with a chip removal mechanism for automatically removing debris on the base.

2. According to claim 1, an intelligent multi-head engraving machine with automatic chip removal and fast tool change is characterized in that: The automatic tool preparation mechanism includes a fixed frame fixed on the side of the gantry beam facing away from the workbench, a movable frame movably connected to the fixed frame, and a tool changing frame slidably connected to the movable frame. The movable frame is a U-shaped structure. The bottom of the tool changing frame is provided with a plurality of clamps for clamping the tool handle for tool changing. The bottom of the fixed frame is also provided with a Y-axis slide rail. The bottom wall of the movable frame is provided with a Y-axis slide seat slidably connected to the Y-axis slide rail. The fixed frame is fixedly provided with a Y-axis motor for driving the movable frame and the tool changing frame to move forward and backward along the fixed frame.

3. The intelligent multi-head engraving machine with automatic chip removal and fast tool change according to claim 2 is characterized in that: An X-axis slide rail is also provided on the bottom wall of the movable frame, and an X-axis slide block slidably connected to the X-axis slide rail and an X-axis motor for driving the movable frame and the tool changer to move left and right along the fixed frame are provided under the Y-axis slide seat.

4. The intelligent multi-head engraving machine with automatic chip removal and fast tool change according to claim 3 is characterized in that: Z-axis slide rails are arranged on both sides of the tool changing frame, and a Z-axis slide seat and a Z-axis motor for driving the tool changing frame to move up and down along the fixed frame are arranged on the end surface where the movable frame and the tool changing frame are connected.

5. The intelligent multi-head engraving machine with automatic chip removal and fast tool change according to claim 1 is characterized in that: The mobile tool magazine includes a plurality of movable disc tool holders corresponding to each spindle, and the movable disc tool holder includes a tool unloading portion and a tool loading portion for providing different tools for the multi-axis precision engraving mechanism. A position sensor is also provided on the movable disc tool holder.

6. The intelligent multi-head engraving machine with automatic chip removal and fast tool change according to claim 5 is characterized in that: The workbench is fixedly provided with a tool setting instrument on one side close to the mobile tool magazine.

7. The intelligent multi-head engraving machine with automatic chip removal and rapid tool change according to claim 6 is characterized in that: The base includes a bearing part and a sliding part arranged on the bearing part for sliding connection between the workbench and the mobile tool magazine, base slide rails are arranged on both sides of the sliding part, and a tool magazine slide seat adapted to the base slide rail is arranged on the end surface where the mobile tool magazine is connected to the sliding part.

8. The intelligent multi-head engraving machine with automatic chip removal and rapid tool change according to claim 7 is characterized in that: The driving assembly includes a driving motor fixedly mounted on the sliding portion and a reciprocating screw rod fixedly connected to the output shaft of the driving motor. A connecting block is fixedly mounted at the bottom of the mobile tool magazine. The reciprocating screw rod is inserted into the connecting block and is threadedly connected to the connecting block.

9. The intelligent multi-head engraving machine with automatic chip removal and fast tool change according to claim 8, characterized in that: The chip removal mechanism comprises chip removal grooves arranged on both sides of the sliding part, a spiral chip removal rod arranged in the chip removal groove, and a chip rolling rod motor fixedly arranged at one end of the chip removal groove for driving the spiral chip removal rod to spirally remove chips.

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