CN204749679U - Mechanical engraver of four -axis linkage - Google Patents

Abstract

The utility model discloses a four-axis linkage mechanical engraving machine, which comprises a base, a workbench, a gantry and a gantry transmission device, a chuck device, a beam, and a machine head. The base is a load-bearing structure with a workbench on it. The gantry and the gantry transmission device are fixed on the base through the line rail and the optical axis. The chuck device is fixed on the workbench near the click end, and its axis is along the Y axis. A crossbeam is installed on the top, and the machine head is vertically connected with the crossbeam through a self-designed fixing piece. The utility model has the advantages that: the whole machine is made of aluminum alloy, which reduces the weight of the whole machine while ensuring stability; adopts the design of the moving gantry, which improves the load capacity of the platform and is suitable for processing heavy workpieces; at the same time, the excellent gantry The structural design makes the appearance more beautiful and simple; the four-axis linkage drive mode is used, which has a larger working range and higher efficiency than the transmission three-axis engraving machine.

Description

A four-axis linkage mechanical engraving machine

technical field

The utility model relates to an engraving machine, in particular to a four-axis linkage mechanical engraving machine.

Background technique

In principle, the engraving machine is a combination of turning and milling machine tools. At present, most mechanical engraving machines adopt X, Y, and Z-type structures, and engrave in the way of tool rotation. The transmission structures include fixed gantry, moving gantry, and cross sliding, etc., and milling, cutting, and cutting of different materials can be performed by changing the tool. Drilling and other processing. According to the different materials used for processing, it is divided into ceramic engraving machine, woodworking engraving machine and so on.

Most of the existing CNC engraving machines adopt a fixed gantry structure, and use a stepping motor to drive the movement of the worktable and the workpiece on it, which not only increases the load of the motor, but also reduces the engraving accuracy. At the same time, the load-bearing capacity of the fixed gantry structure is limited by the driving force of the motor used, and it is impossible to process heavy workpieces; at the same time, because the rotation axis of the existing A-axis is along the X-axis direction, the processing size of the workpiece, Weight, etc. are limited; especially the way the table moves, because the weight of the table itself is already high, coupled with the weight of the workpiece, the overall weight of the Y-axis is higher and the inertia is greater, which reduces the accuracy and affects The performance of the engraving machine.

Contents of the invention

The utility model is designed in order to make up for the low processing precision of the existing engraving machine and the limited weight and size of the workpiece to achieve higher precision, larger processing range and higher load-bearing capacity.

The utility model provides a four-axis linkage mechanical engraving machine, a four-axis linkage mechanical engraving machine, which mainly includes: a base, a workbench, a gantry and a gantry transmission device, a chuck device, a beam and a machine head; it is characterized in that: the base It is mainly composed of the base aluminum plate, the base frame and the support between the base and the workbench. The gantry and the gantry transmission device are mainly composed of the gantry side aluminum plate, line rail, round guide rail and Y-axis drive motor. The chuck device is mainly composed of the chuck drive motor, chuck The disc device is composed of a flange bracket and a chuck. The beam is mainly composed of a beam optical axis, a beam screw, a beam slider and a beam drive motor. Composed of synchronous belt and spindle motor; the base is a load-bearing structure with a worktable on it, the gantry and the gantry transmission device are fixed on the base through line rails and circular guide rails, and the chuck device is fixed on the workbench near the end of the Y-axis drive motor , its axial direction is along the Y axis, a crossbeam is installed on the gantry, and the machine head is vertically connected with the crossbeam through the machine head fixing piece.

The gantry structure is a moving gantry. There are line rails along the Y-axis direction under the worktable on the base, and circular guide rails on both sides of the base. The gantry structure relies on line rails and circular guide rails to move and ensure stability. A beam is installed on it, and the machine head is vertically connected with the beam through a self-designed fixing piece.

The chuck device, whose rotation axis is along the Y-axis direction, can rotate clockwise or counterclockwise arbitrarily.

The beam includes two optical axes and a screw rod, wherein the optical axis is a load-bearing structure, and the screw rod is a transmission structure. Sliding with small resistance, the drive motor drives the slider through the screw rod to drive the movement of the machine head;

This engraving machine can not only process traditional plane relief and embossed graphics, but also can process more complex three-dimensional structures such as cylinders and polyhedrons through the added A-axis rotation. Its structure includes the base part for carrying the whole, the workbench part for placing the workpiece and the chuck, the gantry and the gantry transmission device for realizing the Y-axis transmission and installing the beam part, and the head part is installed on the beam and perpendicular to the workbench.

Among them, the base part is a rectangular aluminum alloy plate of 400 mm × 620 mm, and the frame fixed on it is surrounded by two 6060 aluminum profiles with a length of 400 mm and two 500 mm long, and fixed by 6060 corner pieces composition. The four corners on the frame are fixed with workbench support columns.

Among them, the gantry and the gantry transmission device are the Y-axis device and the line rail installed on the base and the supporting structure on the optical axis. The gantry support is a self-designed aluminum alloy plate support, and its shape is a polygon composed of a rectangle with a length of 300 mm and a width of 85 mm, a trapezoid with a length of 143 mm at the bottom, a length of 94 mm at the top, and a trapezoid with a height of 50 mm. Its advantage is that it is more stable than the traditional single rod structure, and at the same time, it is easy to install; the line rail is a sliding device installed on the upper surface of the 6060 aluminum profile with a length of 500 mm on both sides of the frame. Its model is HGH20HA, and the length on both sides of the frame is 500 mm. The outer surface of the 6060 aluminum profile is equipped with SBR20 round guide rails, which are used to bear the weight and movement of the gantry part; the gantry structure is driven by the Y-axis motor through the screw rod to realize the movement. The shaft device is connected with the Y-axis motor. The design advantage of this structure is that while ensuring the engraving accuracy, it increases the load-bearing capacity of the workbench, so that the whole machine can engrave heavier workpieces.

Wherein, the chuck device includes the chuck and its drive motor; the rotation axis of the chuck is arranged along the Y axis, connected with the drive motor through a timing belt, and can rotate clockwise or counterclockwise. Its purpose is to increase the fourth-dimensional processing space, which can meet the processing requirements that traditional three-axis engraving machines are difficult to complete at one time. At the same time, because the rotation axis is along the Y-axis direction, compared with the traditional A-axis, its processing space is larger. Large, which solves the problem of the small processing range of the existing A-axis.

Among them, the beam part includes two 20×520 optical shafts and a 12×440 ball screw, the screw is a transmission device, connected with the drive motor through a coupling; The upper and lower sides; the two optical axes and the screw rod form a plane perpendicular to the xoy plane and parallel to the xoz plane; the slider slides on the optical axis, and the machine head is fixed on the slider by a self-designed fixing piece.

Among them, the machine head part includes vertical circular guide rails, drive motors, screw rods, and spindle motors. Two SBR20×500 circular guide rails and a 12×440 ball screw are installed on self-designed fixing parts. Between the guide rails, it is used for transmission to drive the spindle motor to move along the Z axis. The screw rod and the driving motor are connected through a synchronous belt.

The utility model has the advantages that: the whole machine is made of aluminum alloy, which reduces the weight of the whole machine while ensuring stability; adopts the design of the moving gantry, which improves the load capacity of the platform and is suitable for processing heavy workpieces; at the same time, the excellent gantry Structural design makes the appearance more beautiful and simple; the four-axis linkage drive mode is used, which has a larger working range and higher efficiency than the transmission three-axis engraving machine.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is the right view of the utility model.

Fig. 4 is a top view of the utility model.

In the figure, 1 is the base, 1.1 is the base aluminum plate, 1.2 is the base frame, 1.3 is the support between the base and the workbench, 2 is the workbench, 3 is the gantry and the gantry transmission device, 3.1 is the gantry side aluminum plate, 3.2 is Line rail, 3.3 is the round guide rail, 3.4 is the Y-axis drive motor, 4 is the chuck device, 4.1 is the chuck drive motor, 4.2 is the flange bracket of the chuck device, 4.3 is the chuck, 5 is the beam, 5.1 is the beam light Shaft, 5.2 is the beam screw, 5.3 is the beam slider, 5.4 is the beam driving motor, 6 is the machine head, 6.1 is the circular guide rail of the machine head, 6.2 is the fixing part of the machine head, 6.3 is the driving motor of the machine head, 6.4 is the synchronous belt , 6.5 is the spindle motor.

Detailed ways

The utility model will be further explained below in conjunction with the accompanying drawings. As shown in the accompanying drawings, a four-axis linkage mechanical engraving machine mainly includes: a base 1, a workbench 2, a gantry and a gantry transmission device 3, a chuck device 4, a beam 5 and a machine head 6; it is characterized in that: the base 1 It is mainly composed of the base aluminum plate 1.1, the base frame 1.2 and the support 1.3 between the base and the workbench. The gantry and the gantry transmission device 3 are mainly composed of the gantry side aluminum plate 3.1, the line rail 3.2, the circular guide rail 3.3 and the Y-axis drive motor 3.4. The disk device 4 is mainly composed of the chuck drive motor 4.1, the chuck device flange bracket 4.2 and the chuck 4.3, the beam 5 is mainly composed of the beam optical axis 5.1, which is the beam screw 5.2, the beam slider 5.3 and the beam drive motor 5.4, The machine head 6 is mainly composed of the machine head circular guide rail 6.1, the machine head fixing part 6.2, the machine head drive motor 6.3, the synchronous belt 6.4 and the main shaft motor 6.5; The transmission device 3 is fixed on the base 1 through the line rail and the circular guide rail, and the chuck device 4 is fixed on the workbench 2 near the end of the Y-axis driving motor, and its axial direction is along the Y-axis. A beam 5 and a machine head 6 are installed on the gantry. Connect vertically with the crossbeam 5 through the machine head fixture.

The utility model comprises a base 1.1 on which a base frame 1.2 is installed, a workbench support 1.3 is installed on the base frame, a workbench 2 is installed on it, and line rails 3.2 are installed on the long sides of the frame. Round rail 3.3.

The line rail and the circular guide rail are used to install the gantry and the gantry transmission device, the gantry side plate 3.1 is placed on the circular guide rail and the line rail, and the side plate is connected with the screw rod through the self-designed gantry transmission device 3.4.

The gantry and the gantry transmission device are composed of a side plate, a gantry transmission device and a crossbeam. The crossbeam includes two 20×520 optical shafts (and their associated sliders) 5.1, a 12×440 screw rod 5.2, and the machine head and the driving motor 5.4, the two optical axes are arranged up and down, the screw rod is arranged in the middle of the two optical axes, and connected with the driving motor through a shaft coupling.

The head part is fixed on the slider of the optical axis through a self-designed fixing part 6.2. The head part includes a circular guide rail 6.1, a fixing part 6.2, a drive motor 6.3, a synchronous belt 6.4, and a spindle motor 6.5, wherein the spindle motor is fixed by Part is connected with the slide block of circular guide rail 6.1, and is driven by the screw mandrel to move up and down along the Z axis, and the screw mandrel is connected with the drive motor by synchronous belt 6.4.

Cutters can be mounted on the spindle motor for cutting.

The flange bracket 4.1 of the chuck device is installed on the workbench 2 close to the end of the Y-axis drive motor 3.4, and the chuck 4.3 is installed on the flange bracket 4.1. It is characterized in that the rotation axis is along the Y-axis direction and can be clockwise rotate. The chuck driving motor 4.2 is installed on the flange support 4.1 along the Y-axis direction.

During processing, the workpiece can be clamped on the chuck, or directly fixed on the workbench for processing.

Claims (4)

1. A four-axis linkage mechanical engraving machine mainly includes: a base, a workbench, a gantry and a gantry transmission, a chuck device, a beam and a machine head; it is characterized in that the base is mainly composed of a base aluminum plate, a base frame and a base and a working The gantry and the gantry transmission device are mainly composed of gantry side aluminum plates, line rails, circular guide rails and Y-axis drive motors. The chuck device is mainly composed of chuck drive motors, chuck device flange brackets and chucks. , the beam is mainly composed of the optical axis of the beam, which is a beam screw, a beam slider and a beam drive motor, and the machine head is mainly composed of a machine head circular guide rail, a machine head fixture, a machine head drive motor, a synchronous belt and a spindle motor; The base is a load-bearing structure with a worktable on it. The gantry and the gantry transmission device are fixed on the base through line rails and circular guide rails. The chuck device is fixed on the worktable near the end of the Y-axis drive motor, and its axial direction is along the Y-axis. A crossbeam is installed on the gantry, and the machine head is vertically connected with the crossbeam through the head fixing piece. 2. A four-axis linkage mechanical engraving machine according to claim 1, characterized in that, the gantry structure is a moving gantry, there are line rails along the Y-axis direction under the worktable on the base, and there are rails on both sides of the base. Circular guide rail, the gantry structure relies on line rails and circular guide rails to move, and beams are installed on it. 3. A four-axis linkage mechanical engraving machine according to claim 1, characterized in that, the chuck device has a rotation axis along the Y axis and can rotate clockwise or counterclockwise arbitrarily. 4. A four-axis linkage mechanical engraving machine according to claim 1, characterized in that the crossbeam includes two optical axes and a screw rod, wherein the optical axis is a load-bearing structure, the screw rod is a transmission structure, and the machine head passes through The head fixing part is fixed on the slider, which can slide on the optical axis with minimal resistance, and the driving motor drives the slider through the screw rod to drive the movement of the machine head.