Five-axis engraving machine

Abstract

This utility model discloses a five-axis engraving machine. A worktable for placing wood is slidably mounted on a first horizontal motion pair. A second horizontal motion pair is also provided on the frame, and a horizontal motion support plate is slidably mounted on the second horizontal motion pair. A vertical motion pair is provided on the horizontal motion support plate, and a vertical motion bracket is movably mounted on the vertical motion pair. The engraving mechanism is mounted on the vertical motion bracket. A rotary motion pair is provided on the vertical motion bracket, and a shaft frame is provided on the rotary motion pair. A slewing motion pair is mounted on the shaft frame, and a tool holder is mounted on the slewing motion pair. The equipment of this application can make full use of factory space, arranging a machine that can produce multiple products at once in a limited space, with high production efficiency and low cost. The use of two worktables on the left and right sides can realize the processing of different workpieces or perform different processes for processing the same workpiece. It can prevent workpiece deformation caused by temperature and humidity changes due to excessive waiting time for part processing.

Description

Technical Field

[0001] This utility model relates to the field of engraving machines, specifically to a five-axis engraving machine. Background Technology

[0002] Existing five-axis CNC engraving machines only have 1-2 spindles simultaneously processing workpieces, resulting in limited production efficiency. Increasing output would require adding more machines, which increases space requirements and the number of operators, thus raising costs. Especially for batch production, excessively long processing times, changes in ambient temperature and humidity, can cause deformation of finished products, leading to new correction or scrap costs.

[0003] Existing technical solution 1: A five-axis engraving machine with a single spindle head and dual worktables. This means that except for the worktables which have two separate structures, everything else is a single structure. Workers can have the machine tool process parts on one worktable while loading and unloading materials on the other. If this method still cannot meet production demands, the only solution is to increase the number of machines to increase capacity. Increasing the number of machines requires more space and more operators, thus increasing capital investment and production costs.

[0004] Existing technical solution two: a five-axis engraving machine with dual spindle heads and dual worktables. That is, except for the frame, everything else consists of two sets of structures. Such a machine can achieve nearly twice the production efficiency of existing technical solution one. In general, it is an improved version of solution one. Therefore, there is an urgent need in the market for a compact engraving machine with higher production efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model aims to provide a five-axis engraving machine with higher processing efficiency and more flexible production operation.

[0006] To achieve this technical objective, the present invention provides a five-axis engraving machine comprising two or more first horizontal motion pairs and a frame. A worktable for placing wood is slidably mounted on the first horizontal motion pairs. At least one second horizontal motion pair is also provided on the frame. At least one horizontal motion support plate is slidably mounted on the second horizontal motion pair. A vertical motion pair is provided on the horizontal motion support plate. A vertical motion bracket is movably mounted on the vertical motion pair. At least one engraving mechanism is mounted on the vertical motion bracket.

[0007] The engraving mechanism is composed of a tool holder, a shaft holder, a rotary kinematic pair, and a rotary kinematic pair. The rotary kinematic pair is set on a vertical kinematic bracket, and a shaft holder is set on the rotary kinematic pair. The rotary kinematic pair is mounted on the shaft holder, and the tool holder is mounted on the rotary kinematic pair. The rotary kinematic pair can drive the tool holder to rotate in the horizontal plane, and the rotary kinematic pair can drive the tool holder to rotate in the vertical plane.

[0008] Preferably, the vertical motion bracket has a C-shaped or E-shaped structure, the rotation axis of the rotary motion pair is perpendicular to the movement direction of the vertical motion bracket, and the engraving mechanism is installed at the protruding end of the vertical motion bracket; the shaft frame has an L-shaped structure, and the rotation axis of the rotary motion pair is perpendicular to the rotation axis of the rotary motion pair.

[0009] Preferably, the workbench is provided with two or more protruding support frames, the support frames are equipped with clamps, and the support frames are connected by a groove fixing structure for installing wood.

[0010] Preferably, the frame has an open structure in the middle, and the workbench can drive the wood on it to move back and forth along the first horizontal motion pair to enter or exit the frame.

[0011] Preferably, at least one power spindle is mounted on the tool holder, and one or both ends of the power spindle are connected to a tool.

[0012] Preferably, the tool holder is equipped with two power spindles, the axes of the two power spindles are perpendicular to each other, and both ends of the power spindles are driven and connected to tools.

[0013] Preferably, the system also includes a control unit, wherein the first horizontal kinematic pair, the second horizontal kinematic pair, the power spindle, the rotary kinematic pair, and the slewing kinematic pair are electrically connected to the control unit.

[0014] Preferably, the system also includes a temperature sensor and a humidity sensor for monitoring ambient temperature, which are electrically connected to the control unit.

[0015] The beneficial effects of this utility model are that the equipment of this application can make full use of factory space, and can arrange machines that produce four or more products at one time in a limited space, with high production efficiency and reduced costs; by using two worktables on the left and right, different workpieces can be processed, or different processes can be performed on the same workpiece; due to the high processing efficiency, it can prevent workpiece deformation caused by temperature and humidity changes due to excessive waiting time for processing a part, thereby reducing the increase in production costs due to part deformation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the front view of this utility model. Detailed Implementation

[0019] The utility model of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. In order to provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; other embodiments obtained based on the content described in this application without creative effort are all within the scope of protection of this utility model.

[0020] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of clearly describing this embodiment, rather than indicating or implying that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] like Figure 1-3 As shown, the specific embodiment of this utility model is a five-axis engraving machine, including two or more sets of first horizontal motion pairs 1 and a frame 2. A worktable 3 for placing wood is slidably installed on the first horizontal motion pairs 1. Two sets of second horizontal motion pairs 4 are also provided on the frame 2. Two horizontal motion plates 5 are slidably installed on the second horizontal motion pairs 4. A vertical motion pair 6 is provided on the horizontal motion plate 5. A vertical motion bracket 7 is movably installed on the vertical motion pair 6.

[0022] The equipment of this application can select vertical motion brackets 7 of different shapes to match different work requirements according to the size and processing quantity of the wooden workpieces; the vertical motion bracket 7 is a square, C-shaped or E-shaped structure, and one, two or three carving mechanisms 8 are installed on the vertical motion bracket 7.

[0023] To meet the machining requirements in the C-axis and A-axis directions, the engraving mechanism 8 is composed of a tool holder 801, a shaft holder 802, a rotary kinematic pair 803, and a rotary kinematic pair 804. The rotary kinematic pair 803 is mounted on the vertical motion bracket 7, and the shaft holder 802 is mounted on the rotary kinematic pair 803. The rotary kinematic pair 804 is mounted on the shaft holder 802, and the tool holder 801 is mounted on the rotary kinematic pair 804. The rotary kinematic pair 803 can drive the tool holder 801 to rotate in the horizontal plane, and the rotary kinematic pair 804 can drive the tool holder 801 to rotate in the vertical plane. The first horizontal kinematic pair 1, the second horizontal kinematic pair 4, and the vertical kinematic pair 6 are all line-contact movable connection structures, which achieve precise linear sliding on the plane by driving the structure on the track through a motor in conjunction with a lead screw or gear.

[0024] In order to make full use of the space of the frame to process multiple workpieces at the same time, the rotation axis of the rotary kinematic pair 803 is perpendicular to the movement direction of the vertical kinematic bracket 7, and the engraving mechanism 8 is installed at the protruding end of the vertical kinematic bracket 7; the shaft frame 802 has an L-shaped structure, and the rotation axis of the rotary kinematic pair 803 is perpendicular to the rotation axis of the rotary kinematic pair 804.

[0025] To meet machining needs, a power spindle 805 is mounted on the tool holder 801, and a tool 806 is driven and connected to one or both ends of the power spindle 805. Alternatively, three power spindles 805 are mounted on the tool holder 801 at a 120-degree angle, and a tool 806 is connected to one end of each power spindle 805. Or, four power spindles 805 are mounted on the tool holder 801 at a 90-degree angle, and a tool 806 is connected to one end of each power spindle 805.

[0026] To meet various cutting and drilling operations and reduce the time loss caused by tool changes, two power spindles 805 are vertically mounted on the tool holder 801. The axes of the two power spindles 805 are perpendicular to each other, and tools 806 are driven and connected to both ends of the power spindles 805.

[0027] Because batch production involves long processing times, and changes in ambient temperature and humidity can cause deformation of finished products, resulting in new straightening or scrap costs, it is necessary to monitor the temperature and humidity of the processing environment. The system also includes a control unit, with the first horizontal kinematic pair 1, the second horizontal kinematic pair 4, the power spindle 805, the rotary kinematic pair 803, and the slewing kinematic pair 804 all electrically connected to the control unit. It also includes temperature and humidity sensors for monitoring the ambient temperature, both electrically connected to the control unit.

[0028] To accommodate the positioning and installation of multiple workpieces, the worktable 3 is provided with two or more protruding support frames 301, and clamps are installed on the support frames 301. The support frames 301 are fixed by grooves.

[0029] To meet the needs of processing wood of different lengths, the frame 2 has an open structure in the middle, and the worktable 3 can drive the wood on it to move back and forth along the first horizontal motion pair 1 to pass through or out of the frame 2.

[0030] like Figure 1 The key is to fully utilize factory space, arranging machines that produce four products at a time within a limited area, achieving high production efficiency and reduced costs. The left and right worktables can process different workpieces or execute different processes for the same workpiece. This prevents workpiece deformation caused by temperature and humidity changes due to excessively long processing times for a single part, thereby reducing the increase in production costs due to part deformation.

[0031] When using, such as Figure 1 The machine frame has a first horizontal kinematic pair in the Y direction and a second horizontal kinematic pair in the X direction on one side. A Y-axis moving table is mounted on the first horizontal kinematic pair, moving in the Y direction under motor drive. A horizontal moving slide is mounted on the second horizontal kinematic pair, moving in the X direction under motor drive. A vertical kinematic pair is mounted on the horizontal moving slide. A vertical moving bracket is mounted on the vertical kinematic pair, moving in the Z direction under motor drive. A rotary kinematic pair is mounted on the vertical moving bracket. An A-axis shaft is mounted on the rotary kinematic pair, rotating horizontally under motor drive. The rotary kinematic pair drives the A-axis shaft to rotate vertically, outputting C-axis motion. A horizontal rotary kinematic pair is mounted on the A-axis shaft, with a power spindle perpendicular to the rotary kinematic pair (on which one or more cutting tools are mounted). A motor within the rotary kinematic pair drives the power spindle to rotate around the axis of the rotary kinematic pair, outputting A-axis motion. The power spindle holds the cutting tool, and its high-speed rotation drives the tool to rotate at high speed to achieve cutting. The X, Y, and Z linear axes and the C and A rotary axes work together to achieve five-axis engraving. The first horizontal kinematic pair has a Y-axis moving table, which moves in the Y direction driven by a motor. The second horizontal kinematic pair has a horizontal moving slide, which moves in the X direction driven by a motor. A vertical kinematic pair is mounted on the horizontal moving slide. A vertical moving bracket is mounted on the vertical kinematic pair, which moves in the Z direction driven by a motor. A vertical axis rotary kinematic pair is mounted on the vertical moving bracket, and an A-axis spindle is mounted on the rotary kinematic pair. The motor drives the rotary kinematic pair, which in turn drives the spindle to rotate around the axis of the rotary kinematic pair, thus outputting C-axis motion. A horizontal axis rotary kinematic pair is mounted on the spindle. A power spindle perpendicular to the rotary kinematic pair is mounted on the rotary kinematic pair. A motor within the rotary kinematic pair drives the power spindle to rotate around the axis of the rotary kinematic pair, thus outputting A-axis motion. The power spindle holds the cutting tool, and its high-speed rotation from its own axis drives the cutting tool to rotate at high speed, achieving cutting machining. The linkage of the X, Y, and Z linear axes and the C and A rotary axes enables five-axis engraving machining. Similarly, five-axis engraving processing can be achieved by simultaneously processing with at least two adjacent tools.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A five-axis engraving machine, comprising two or more sets of first horizontal kinematic pairs and a frame, wherein a worktable for placing wood is slidably mounted on the first horizontal kinematic pairs, characterized in that: The frame is also provided with at least one set of second horizontal motion pairs, on which at least one horizontal motion support plate is slidably mounted. A vertical motion pair is provided on the horizontal motion support plate, and a vertical motion bracket is movably mounted on the vertical motion pair. At least one engraving mechanism is mounted on the vertical motion bracket. The engraving mechanism is composed of a tool holder, a shaft holder, a rotary kinematic pair, and a rotary kinematic pair. The rotary kinematic pair is mounted on a vertical kinematic bracket, and a shaft holder is mounted on the rotary kinematic pair. The rotary kinematic pair is mounted on the shaft holder, and the tool holder is mounted on the rotary kinematic pair. The rotary kinematic pair can drive the tool holder to rotate in the horizontal plane, and the rotary kinematic pair can drive the tool holder to rotate in the vertical plane.

2. The five-axis engraving machine according to claim 1, characterized in that: The vertical motion bracket has a C-shaped or E-shaped structure, and the rotation axis of the rotary motion pair is perpendicular to the movement direction of the vertical motion bracket. The engraving mechanism is installed at the protruding end of the vertical motion bracket. The shaft frame has an L-shaped structure, and the rotation axis of the rotary motion pair is perpendicular to the rotation axis of the rotary motion pair.

3. The five-axis engraving machine according to claim 1, characterized in that: The workbench is provided with two or more protruding support frames, and the support frames are equipped with clamps. The support frames are connected by a groove fixing structure that allows wood to be installed.

4. The five-axis engraving machine according to claim 3, characterized in that: The frame has an open structure in the middle, and the workbench can drive the wood on it to move back and forth along the first horizontal motion pair to enter or exit the frame.

5. The five-axis engraving machine according to any one of claims 1-4, characterized in that: At least one power spindle is mounted on the tool holder, and a tool is driven to one or both ends of the power spindle.

6. The five-axis engraving machine according to any one of claims 1-4, characterized in that: The tool holder is equipped with two power spindles, the axes of which are perpendicular to each other, and each end of the power spindle is connected to a tool.

7. The five-axis engraving machine according to any one of claims 1-4, characterized in that: It also includes a control unit, and the first horizontal kinematic pair, the second horizontal kinematic pair, the power spindle, the rotary kinematic pair and the slewing kinematic pair are electrically connected to the control unit.

8. The five-axis engraving machine according to claim 7, characterized in that: It also includes a temperature sensor and a humidity sensor for monitoring ambient temperature, which are electrically connected to the control unit.

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