Numerical control variable-angle cutting machine

Abstract

The utility model discloses a numerical control variable angle cutting machine which comprises a machine frame table, a transverse moving door frame and a vertical linear module, a gun head seat plate is fixedly installed on a vertical moving sliding seat at the output end of the vertical linear module, and a gun head rotating seat used for installing a cutting gun head is rotatably installed on the gun head seat plate. A rotation driving mechanism used for driving the cutting gun head and the gun head rotating seat to rotate is further mounted on the back of the gun head seat plate; a positioning rotating base used for placing a steel plate to be cut is rotationally installed on the rack table, and a bottom driving mechanism used for driving the positioning rotating base to rotate is installed at the lower end of the rack table. The rotary driving mechanism is used for adjusting and controlling the axis of the cutting gun head, namely adjusting the included angle between the cutting gun head and a steel plate to be cut, and the bottom driving mechanism is used for adjusting and controlling the direction of an elliptical hole to be cut, so that the cutting gun head can automatically cut according to a set path, and the cutting precision and quality are relatively higher; and the trepanning and cutting efficiency is relatively higher.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a numerically controlled variable-angle cutting machine. Background Art

[0002] At present, in order to integrate with the surrounding environment and highlight the characteristics of the city, the design of bridges is increasingly tending to be beautiful and unique. A large number of bridges with variable cross-sections, curved polygonal steel box arches, steel truss arches, steel truss beams and other structures have appeared. These steel box arches are usually assembled and made of external steel plates and internal stiffening structures. The internal stiffening structure requires opening elliptical holes that are not perpendicular to the surface of the steel plate in the steel plate to facilitate the oblique insertion of fixed rods. The so-called elliptical holes that are not perpendicular to the surface of the steel plate refer to the elliptical holes formed by the circular steel pipes that do not pass through the steel plate vertically, such as Figure 1 As shown, the upper ellipse formed on the upper surface of the steel plate and the lower ellipse formed on the upper surface of the steel plate are often staggered.

[0003] In the prior art, the cutting gun head of a flame CNC cutting machine or a plasma CNC cutting machine can usually only cut perpendicularly to the steel plate. For cutting the elliptical hole 101 of the steel pipe that is not perpendicular to the steel plate, the overlapping area 103 of the upper ellipse and the lower ellipse in the vertical direction is usually cut first, such as Figure 2 As shown, the upper and lower surfaces of the steel plate are then marked, and experienced operators are hired to manually cut to cut out the arc-shaped side walls 102 at both ends. Obviously, the existing cutting method is not only difficult to mark, but also has low manual cutting accuracy, poor quality, and relatively low hole cutting efficiency. Utility Model Content

[0004] The utility model aims to provide a numerically controlled variable angle cutting machine, which is used for cutting elliptical holes which are not perpendicular to the surface of a steel plate, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A CNC variable angle cutting machine comprises a frame, a transverse gantry and a vertical linear module, wherein a longitudinal guide frame is installed on the frame, and the side profiles at both ends of the transverse gantry are matched with the longitudinal guide frame through a longitudinal travel mechanism, and the vertical linear module is matched with the transverse guide profile of the transverse gantry through a transverse travel mechanism, and a gun head seat plate is fixedly installed on the vertical slide at the output end of the vertical linear module, and a gun head swivel seat for installing a cutting gun head is rotatably installed on the gun head seat plate, and a rotating driving mechanism for driving the cutting gun head and the gun head swivel seat to rotate is also installed on the back of the gun head seat plate; a positioning swivel seat for placing a steel plate to be cut is rotatably installed on the frame, and a bottom driving mechanism for driving the positioning swivel seat to rotate is installed at the lower end of the frame.

[0007] Preferably, a plurality of magnetic suction elements for adsorbing the steel plate to be cut are distributed and installed on the positioning rotating seat.

[0008] Preferably, the rotary drive mechanism comprises a rotary drive motor and a reducer mounted on the back of the gun head seat plate, the output end of the rotary drive motor is connected to the input end of the reducer, and the output end of the reducer is connected to the gun head rotating seat drive.

[0009] Preferably, the bottom driving mechanism includes a bottom driving motor and a bottom reducer installed on the lower end surface of the frame platform, the output end of the bottom driving motor is connected to the input end of the bottom reducer, and the output end of the bottom reducer is connected to the positioning swivel drive.

[0010] Preferably, the longitudinal travel mechanism includes a fixed seat plate, which is fixedly mounted on the lower end of the side profile of the transverse door frame, and the upper end of the fixed seat plate has a pair of top rollers for cooperating with the upper side walls of the longitudinal guide frame, and a travel motor is fixedly mounted on the lower end of the fixed seat plate, and a toothed belt pulley is docked and mounted on the output end of the travel motor, and a toothed belt is matched on the toothed belt pulley, and both ends of the toothed belt are fixedly connected to the longitudinal guide frame; a pair of bottom rollers are also installed at the lower end of the fixed seat plate, and the two bottom rollers are distributed on both sides of the toothed belt pulley, and the bottom rollers on both sides press the toothed belt against the lower side wall of the longitudinal guide frame.

[0011] Preferably, the transverse walking mechanism has the same structure as the longitudinal walking mechanism, the fixed seat plate of the transverse walking mechanism is fixedly installed on the side wall of the vertical linear module, the top roller of the transverse walking mechanism rolls on the upper side wall of the transverse guide rail profile, and the bottom roller of the transverse walking mechanism presses the toothed belt against the lower side wall of the transverse guide rail profile.

[0012] Preferably, the vertical linear module adopts a motor lead screw linear module.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the utility model has a reasonable structural design, and the bridge head of the previous flame CNC cutting machine or plasma CNC cutting machine is upgraded by modifying the bridge head, and the axis of the cutting gun head is adjusted and controlled by the rotating drive mechanism, that is, the angle between the cutting gun head and the steel plate to be cut is adjusted, and the orientation of the elliptical hole to be cut is adjusted and controlled by the bottom drive mechanism, so that the cutting gun head can perform automatic cutting according to the set path, not only the cutting accuracy and quality are relatively higher, but also the hole cutting efficiency is relatively higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a steel plate with an oblique elliptical hole;

[0015] Figure 2 It is a schematic diagram of the top view structure of a steel plate with an oblique elliptical hole;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of a CNC variable angle cutting machine;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of a CNC variable angle cutting machine in working state;

[0018] Figure 5 A CNC variable angle cutting machine Figure 4 The enlarged structural diagram at A in the middle;

[0019] Figure 6 It is a three-dimensional structural schematic diagram of a CNC variable angle cutting machine from another perspective;

[0020] Figure 7 The present invention is a three-dimensional structural schematic diagram of a longitudinal travel mechanism in a CNC variable angle cutting machine.

[0021] In the figure: 100-steel plate to be cut, 101-elliptical hole, 102-arc side wall, 103-overlapping area, 1-frame, 11-positioning swivel seat, 12-magnetic element, 13-bottom drive motor, 2-longitudinal guide frame, 3-longitudinal travel mechanism, 31-fixed seat plate, 32-top roller, 33-bottom roller, 34-travel motor, 35-toothed belt pulley, 36-toothed belt, 4-transverse travel mechanism, 5-transverse gantry, 6-vertical linear module, 61-vertical slide seat, 62-gun head seat plate, 7-cutting gun head, 71-gun head swivel seat, 72-rotation drive motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 7The utility model provides a technical solution: a CNC variable angle cutting machine, including a frame 1, a transverse gantry 5 and a vertical linear module 6. The vertical linear module 6 can specifically adopt a motor screw type linear module. A longitudinal guide frame 2 is installed on the frame 1. The side profiles at both ends of the transverse gantry 5 are matched on the longitudinal guide frame 2 through a longitudinal travel mechanism 3. The vertical linear module 6 is matched on the transverse guide profile of the transverse gantry 5 through a transverse travel mechanism 4. A gun head seat plate 62 is fixedly installed on the vertical slide 61 at the output end of the vertical linear module 6. The gun head seat plate 62 is rotated on the A gun head swivel seat 71 for installing the cutting gun head 7 is rotatably installed, and a rotating drive mechanism for driving the cutting gun head 7 and the gun head swivel seat 71 to rotate is also installed on the back of the gun head seat plate 62. The axis of the cutting gun head 7 coincides with its own rotation plane, and the rotation plane of the cutting gun head 7 is not only perpendicular to the horizontal plane, but also parallel to the transverse guide rail profile of the transverse gantry 5; a positioning swivel seat 11 for placing the steel plate 100 to be cut is rotatably installed on the frame 1, and the positioning swivel seat 11 can be specifically set horizontally, and a bottom driving mechanism for driving the positioning swivel seat 11 to rotate is installed at the lower end of the frame 1.

[0024] The working principle of the utility model is: when working, firstly, the gun head swivel seat 71 and the cutting gun head 7 are driven to rotate by the rotary drive mechanism, so that the axis of the cutting gun head 7 is the same as the inclination angle of the elliptical hole 101 to be cut, and then, the positioning swivel seat 11 and the steel plate 100 to be cut are driven to rotate by the bottom drive mechanism, so that the long axis of the elliptical hole 101 to be cut is parallel to the transverse guide rail profile of the transverse gantry 5, and then, through the cooperation of the longitudinal walking mechanism 3 and the transverse walking mechanism 4, the cutting gun head 7 is moved to above the long axis end point of the elliptical hole 101, and then, the vertical linear module 6 drives the cutting gun head 7 to descend, so that it is close to the long axis end point of the elliptical hole 101, and the cutting gun head 7 is opened. Under the joint drive of the longitudinal walking mechanism 3 and the transverse walking mechanism 4, the cutting gun head 7 moves along the path of the upper ellipse, thereby completing the cutting.

[0025] The utility model has a reasonable structural design. By upgrading the bridge head of the previous flame CNC cutting machine or plasma CNC cutting machine, the axis of the cutting gun head 7 is adjusted and controlled by a rotary drive mechanism, that is, the angle between the cutting gun head 7 and the steel plate 100 to be cut is adjusted. The orientation of the elliptical hole 101 to be cut is adjusted and controlled by the bottom drive mechanism, so that the cutting gun head 7 can perform automatic cutting according to the set path.

[0026] As a specific solution, a plurality of magnetic elements 12 for adsorbing the steel plate 100 to be cut are distributed and installed on the positioning rotating seat 11. The magnetic elements 12 can be electromagnets. The steel plate 100 to be cut is adsorbed and pressed against the positioning rotating seat 11 by the magnetic elements 12.

[0027] Specifically, the rotary drive mechanism includes a rotary drive motor 72 and a reducer installed on the back of the gun head seat plate 62. The output end of the rotary drive motor 72 is connected to the input end of the reducer, and the output end of the reducer is connected to the gun head rotating seat 62. Obviously, an encoder for detecting its own rotation angle is also installed at the end of the rotary drive motor 72. By controlling the number of rotations of the rotary drive motor 72, the cooperation of the rotary drive motor 72 and the reducer can be used to drive the gun head rotating seat 62 to rotate a preset angle.

[0028] Specifically, the bottom driving mechanism includes a bottom driving motor 13 and a bottom reducer installed on the lower end surface of the frame 1. The output end of the bottom driving motor 13 is connected to the input end of the bottom reducer, and the output end of the bottom reducer is connected to the positioning rotating seat 11. Similarly, an encoder for detecting its own rotation angle is also installed at the end of the bottom driving motor 13. By controlling the number of rotations of the bottom driving motor 13, the bottom driving motor 13 and the bottom reducer can be used to drive the positioning rotating seat 11 to rotate a preset angle, so that the long axis of the elliptical hole 101 to be cut is parallel to the transverse guide rail profile of the transverse gantry 5.

[0029] As a specific solution, in order to increase the walking speed and reduce the assembly cost, the longitudinal walking mechanism 3 includes a fixed seat plate 31, which is fixedly installed on the lower end of the side profile of the transverse door frame 5. The upper end of the fixed seat plate 31 has a pair of top rollers 32 for cooperating with the upper side walls of the longitudinal guide frame 2. A walking motor 34 is fixedly installed on the lower end of the fixed seat plate 31, and a toothed belt pulley 35 is docked and installed at the output end of the walking motor 34. The toothed belt pulley 35 is matched with a toothed belt 36, and both ends of the toothed belt 36 are fixedly connected to the longitudinal guide frame 2; a pair of bottom rollers 33 are also installed at the lower end of the fixed seat plate 31, and the two bottom rollers 33 are distributed on both sides of the toothed belt pulley 35, and the bottom rollers 33 on both sides press the toothed belt 36 against the lower side wall of the longitudinal guide frame 2.

[0030] The working principle of the longitudinal travel mechanism 3 is as follows: when traveling, the travel motor 34 drives the toothed belt wheel 35 to rotate. Since the toothed belt wheel 35 is meshed with the fixed toothed belt 36, the fixed seat plate 31 will move relative to the longitudinal guide rail frame 2. During the movement, the two bottom rollers 33 always keep the toothed belt 36 pressed tightly, thereby ensuring the movement accuracy. Obviously, an encoder for detecting its own rotation angle can also be installed at the end of the travel motor 34. By controlling the number of rotations of the travel motor 34, the cooperation of the travel motor 34 and the toothed belt 36 can be used to drive the fixed seat plate 31 to move to a preset position.

[0031] As a specific solution, in order to increase the travel speed and reduce the assembly cost, the transverse travel mechanism 4 has the same structure as the longitudinal travel mechanism 3. The fixed seat plate 31 of the transverse travel mechanism 4 is fixedly mounted on the side wall of the vertical linear module 6. The top roller 32 of the transverse travel mechanism 4 rolls on the upper side wall of the transverse guide rail profile, and the bottom roller 33 of the transverse travel mechanism 4 presses the toothed belt 36 against the lower side wall of the transverse guide rail profile. The driving principle of the transverse travel mechanism 4 is basically the same as that of the longitudinal travel mechanism 3, and will not be repeated here.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A CNC variable angle cutting machine, comprising a frame (1), a transverse gantry (5) and a vertical linear module (6), wherein a longitudinal guide rail frame (2) is installed on the frame (1), and the side profiles at both ends of the transverse gantry (5) are matched on the longitudinal guide rail frame (2) through a longitudinal travel mechanism (3), and the vertical linear module (6) is matched on the transverse guide rail profile of the transverse gantry (5) through a transverse travel mechanism (4), characterized in that: A gun head seat plate (62) is fixedly mounted on the vertical sliding seat (61) at the output end of the vertical linear module (6), a gun head rotating seat (71) for mounting a cutting gun head (7) is rotatably mounted on the gun head seat plate (62), and a rotating driving mechanism for driving the cutting gun head (7) and the gun head rotating seat (71) to rotate is also mounted on the back of the gun head seat plate (62); A positioning swivel seat (11) for placing the steel plate (100) to be cut is rotatably mounted on the frame (1), and a bottom driving mechanism for driving the positioning swivel seat (11) to rotate is mounted at the lower end of the frame (1).

2. A CNC variable angle cutting machine according to claim 1, characterized in that: A plurality of magnetic suction elements (12) for adsorbing the steel plate (100) to be cut are also distributed and installed on the positioning rotating seat (11).

3. A CNC variable angle cutting machine according to claim 1, characterized in that: The rotary drive mechanism comprises a rotary drive motor (72) and a reducer mounted on the back of the gun head base plate (62); the output end of the rotary drive motor (72) is connected to the input end of the reducer, and the output end of the reducer is drivingly connected to the gun head rotating base (71).

4. The CNC variable angle cutting machine according to claim 1, characterized in that: The bottom driving mechanism comprises a bottom driving motor (13) and a bottom reducer mounted on the lower end surface of the frame platform (1); the output end of the bottom driving motor (13) is connected to the input end of the bottom reducer, and the output end of the bottom reducer is drivingly connected to the positioning rotating seat (11).

5. The CNC variable angle cutting machine according to claim 1, characterized in that: The longitudinal movement walking mechanism (3) comprises a fixed seat plate (31), the fixed seat plate (31) is fixedly mounted on the lower end of the side profile of the transverse movement door frame (5), the upper end of the fixed seat plate (31) has a pair of top rollers (32) for cooperating with the upper side wall of the longitudinal movement guide rail frame (2), the lower end of the fixed seat plate (31) is fixedly mounted with a walking motor (34), the output end of the walking motor (34) is docked with a toothed belt wheel (35), the toothed belt wheel (35) is matched with a toothed belt (36), and the two ends of the toothed belt (36) are fixedly connected to the longitudinal movement guide rail frame (2); A pair of bottom rollers (33) are also installed at the lower end of the fixed seat plate (31), and the two bottom rollers (33) are distributed on both sides of the toothed belt wheel (35). The bottom rollers (33) on both sides press the toothed belt (36) against the lower side wall of the longitudinal guide rail frame (2).

6. The CNC variable angle cutting machine according to claim 5, characterized in that: The transverse travel mechanism (4) has the same structure as the longitudinal travel mechanism (3). The fixed seat plate (31) of the transverse travel mechanism (4) is fixedly mounted on the side wall of the vertical linear module (6). The top roller (32) of the transverse travel mechanism (4) rolls on the upper side wall of the transverse guide rail profile. The bottom roller (33) of the transverse travel mechanism (4) presses the toothed belt (36) against the lower side wall of the transverse guide rail profile.

7. The CNC variable angle cutting machine according to claim 1, characterized in that: The vertical linear module (6) adopts a motor screw type linear module.

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