Three-axis gantry type aluminum bar sawing machine

Abstract

A three-axis gantry type aluminum bar sawing machine, comprising a gantry frame main body; the gantry frame main body comprises a top connecting cross beam (1), and two stand columns (2) are provided at the bottom of the top connecting cross beam (1); a first motor (3) is provided on each stand column (2); first ball screw mechanisms (4) are provided on the first motors (3), and a movable cross beam (5) is provided on the first ball screw mechanisms (4), wherein the first ball screw mechanisms (4) can drive the movable cross beam (5) to move up and down; a second motor (6) is provided on the movable cross beam (5), and a second ball screw mechanism (7) is provided on the second motor (6); a sawing mechanism is provided on the second ball screw mechanism (7), wherein the second ball screw mechanism (7) can drive the sawing mechanism to move left and right; position sensors (8) are provided on the movable cross beam (5), the position sensors (8) being used for detecting left / right movement positions of the sawing mechanism; the sawing machine further comprises a control system (9), the first motors (3), the second motor (6), the sawing mechanism and the position sensors (8) being all connected to the control system (9). The three-axis gantry type aluminum bar sawing machine can be used for sawing aluminum bars having different lengths and different diameters.

Description

A three-axis gantry type aluminum rod sawing machine Technical Field

[0001] The invention mainly relates to the technical field of aluminum bar sawing, in particular to a three-axis gantry type aluminum bar sawing machine. Background Art

[0002] At present, there are two types of multi-long aluminum bar saws and multi-short aluminum bar sawing machines used in the market. The long and short bars are sawed separately. At the same time, they are limited by the size of the alloy saw blade and the type of mechanical structure. The sawing diameter is commonly divided into φ90-φ254, which is type 1, φ254-φ380 is type 2, and φ380-φ508 is type 3. During sawing production, different sawing equipment should be selected according to different bar diameters. Therefore, when sawing multiple specifications, multiple devices are required to cooperate to ensure the continuity of production. The number of saws per single time is 6-8 φ90 aluminum bars / time, and the hourly output is about 30 tons.

[0003] In addition, the above sawing machine can only realize the forward and backward sawing functions. It cannot realize the up and down movement of the beam. After the sawing is completed, it returns to the original path, which will cause slight scratches on the cross section due to the swing. Summary of the Invention

[0004] In order to solve the shortcomings of the existing technology, the present invention provides a three-axis gantry type aluminum bar sawing machine, which integrates the sawing functions of long and short bars, while taking into account the sawing requirements of cross-diameter sizes, and can meet the one-time sawing of long and short aluminum bars of φ90-φ380.

[0005] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0006] A three-axis gantry-type aluminum bar sawing machine includes a gantry main body, the gantry main body includes a top connecting crossbeam, two columns are provided at the bottom of the top connecting crossbeam, a first motor is provided on each of the two columns, a first ball screw mechanism is provided on the motor, a movable crossbeam is provided on the first ball screw mechanism, and the first ball screw mechanism is capable of driving the movable crossbeam to move up and down;

[0007] The movable crossbeam is provided with a second motor, and the second motor is provided with a second ball screw mechanism; the second ball mechanism is provided with a sawing mechanism, and the second ball screw mechanism can drive the sawing mechanism to move left and right;

[0008] A position sensor is provided on the movable crossbeam, and the position sensor is used to detect the left and right moving position of the sawing mechanism;

[0009] The sawing machine further includes a control system, and the first motor, the second motor, the sawing mechanism and the position sensor are all connected to the control system.

[0010] The sawing mechanism includes a third motor, a frame is provided at the bottom of the third motor, the movable crossbeam is located in the frame, the frame and the movable crossbeam are slidably connected, a saw spindle is provided on the output shaft of the third motor, a saw spindle is provided on the saw spindle, the saw cylinder is fixedly connected to the frame, a saw blade is provided at the end of the saw spindle, and the saw blade and the saw spindle are detachably fixedly connected.

[0011] The saw cylinder is fixedly connected to the bottom of the frame, and pulleys are provided on the motor output shaft and the saw main shaft, and main shaft belts are installed on the two pulleys.

[0012] The top and bottom of the movable crossbeam are both provided with slide rails, and the slide rails are provided with sliders, and the sliders are fixedly connected to the frame.

[0013] A counterweight lifting mechanism is provided on the column, and the counterweight lifting mechanism is connected to the moving crossbeam.

[0014] The first motor and the second motor are both servo motors.

[0015] A sawdust recovery device is provided directly below the sawing mechanism.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention comprehensively improves the mechanical structure of existing sawing machines. It adopts a gantry-style sawing machine design, achieving three-axis linkage. The gantry structure greatly increases the sawing length. The gantry beam is not limited in length and can be customized to any length according to production capacity needs, meeting the needs of large-scale production. Conventional sawing machines can cut 6-8 φ90 rods at a time, while the gantry saw can cut 44 φ90 rods at a time. The sawing capacity is increased from 30 tons per hour to 70-85 tons per hour.

[0018] 2. The gantry saw can replace alloy saw blades of different diameters to meet the requirements of sawing aluminum bars of different diameters. Previously, sawing φ380 aluminum bars required changing a device to cut, but now it can be done by replacing a saw blade.

[0019] 3. The beam can be raised and lowered. After sawing, the beam is lifted from the end and returns along the top instead of returning along the original path. There will be no scratches.

[0020] 4. The entire process has been changed from traditional hydraulic cylinder control to servo motor control, which greatly improves the accuracy and control method, achieving precise sawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 is a schematic diagram of the rear view structure of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the right side view of the present invention;

[0024] Figure 4 is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 5 is a schematic structural diagram of the sawdust recovery device in Figure 4;

[0026] Accompanying drawing 6 is an enlarged view of part I of the present invention.

[0027] The numbers shown in the accompanying drawings are: 1. Top connecting beam; 2. Column; 3. First motor; 4. First ball screw mechanism; 5. Moving beam; 6. Second motor; 7. Second ball screw mechanism; 8. Position sensor; 9. Control system; 10. Third motor; 11. Frame; 12. Saw spindle; 13. Saw cylinder; 14. Saw blade; 15. Pulley; 16. Spindle belt; 17. Slide rail; 18. Slider; 19. Counterweight lifting mechanism; 20. Saw dust recovery device. DETAILED DESCRIPTION

[0028] The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0029] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0030] At the same time, in order to clearly express the connection relationship and working principle between the various components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0031] It should be noted that in this application document, the control system controls the first motor and other actuators based on the signals detected by the sensor, which is a conventional and adaptive application of the known control system program. Sending signals to control the actuators only involves adjusting the parameters to control the actuators, and does not involve improvements to the program. It is a conventional technical means used by technical personnel in this field.

[0032] A three-axis gantry-type aluminum bar sawing machine, the main structure of which includes a gantry frame body, which includes a top connecting beam 1, and two columns at the bottom of the top connecting beam 1. The main body is made of HT250 casting material, which has the advantages of high stability and simple assembly. The two columns are each equipped with a first motor 3, which is equipped with a first ball screw mechanism 4. As shown in the accompanying drawings, the ball screw mechanism adopts an existing precision ball screw mechanism, which is used to drive the movable beam 5 to move up and down. The first ball screw mechanism 4 is equipped with the movable beam 5, and the first ball screw mechanism 4 can drive the movable beam 5 to move up and down.

[0033] The movable crossbeam 5 is provided with a second motor 6, and the second motor 6 is provided with a second ball screw mechanism 7; the second ball mechanism is provided with a sawing mechanism, and the second ball screw mechanism 7 can drive the sawing mechanism to move left and right;

[0034] A position sensor 8 is provided on the movable crossbeam 5 , and the position sensor 8 is used to detect the left and right moving position of the sawing mechanism. In one embodiment of the present invention, the position sensor 8 is an infrared sensor to detect the position of the sawing mechanism.

[0035] The sawing machine further includes a control system 9, and the first motor 3, the second motor 6, the sawing mechanism and the position sensor 8 are all connected to the control system 9. In one embodiment of the present invention, the control system 9 adopts a PLC control system 9, which is mature in technology and easy to operate.

[0036] The sawing mechanism includes a third motor 10, a frame 11 is provided at the bottom of the third motor 10, the movable crossbeam 5 is located within the frame 11, and the frame 11 and the movable crossbeam 5 are slidably connected. A saw spindle 12 is provided on the output shaft of the third motor 10, and a saw cylinder 13 is provided on the saw spindle 12. The saw cylinder 13 is fixedly connected to the frame 11. A saw blade 14 is provided at the end of the saw spindle 12, and the saw blade 14 is detachably fixedly connected to the saw spindle 12. As shown in the accompanying drawings, a limiting structure can be provided on the saw blade 14 to effectively prevent the saw blade 14 from swinging. The saw blade 14 is connected to the limiting structure by screws, and the saw blade 14 is keyed to the saw spindle 12. A saw cover is provided on the saw blade 14 to protect the saw blade 14 and reduce the interference of sawdust on the cutting of the aluminum rod.

[0037] The saw barrel 13 is fixedly connected to the bottom of the frame 11. Pulleys 15 are mounted on both the motor output shaft and the saw spindle 12. A spindle belt 16 is mounted on each of these pulleys 15. As shown in the accompanying drawings, the saw head transmission utilizes a synchronous belt and pulley connection, a novel approach compared to the existing C-belt drive, which offers greater precision and durability. This effectively prevents issues with cutting quality and efficiency caused by belt wear and uneven force distribution.

[0038] The top and bottom of the movable crossbeam 5 are both provided with slide rails 17, and the slide rails 17 are provided with sliders 18, and the sliders 18 are fixedly connected to the frame 11, thereby improving the sliding stability of the frame 11.

[0039] The column is provided with a counterweight lifting mechanism 19, which is connected to the movable crossbeam 5. As shown in the attached figure, the counterweight lifting mechanism 19 adopts the existing nitrogen bottle counterweight mechanism. The movable crossbeam 5 is relatively large and is also equipped with a second motor 6 and a sawing mechanism. Therefore, the lifting and lowering of the movable crossbeam 5 is also controlled by the first ball mechanism and the first motor 3. When used in conjunction with the nitrogen bottle counterweight, it can effectively protect the stable operation of the lead screw.

[0040] The first motor 3 and the second motor 6 are both servo motors, which have mature technology, stable control and high control accuracy.

[0041] A sawdust recovery device 20 is provided directly below the sawing mechanism. The aluminum dust recovery device adopts mechanical transmission collection to ensure that the generated sawed aluminum dust is quickly transported and collected through the conveying chain plate, thereby reducing interference and influence on the sawing of the aluminum rod.

[0042] Directions:

[0043] The present invention first performs parameter control through a control system, that is, realizes automated numerical control intelligent input control of sawing speed, start and stop positions, and cutting diameter. After the parameters are set, after the aluminum rod is conveyed to the bottom of the saw blade, the control system controls the first motor to rotate, and the first motor drives the first ball screw mechanism to operate, thereby driving the movable crossbeam to move downward. After the movement is completed, the control system controls the second motor to rotate, and the second motor drives the second ball screw mechanism to operate, thereby driving the sawing mechanism to move horizontally from one end to the other end to saw the aluminum rod;

[0044] After the sawing is completed, the control system controls the first motor to rotate in the opposite direction, and the first motor drives the first ball screw mechanism to operate, thereby driving the moving beam to move upward. After the movement is completed, the control system controls the second motor to rotate in the opposite direction, and the second motor drives the second ball screw mechanism to operate, thereby driving the sawing mechanism to move horizontally to the initial end. After the next batch of aluminum bars are delivered to the bottom of the saw blade, the above steps are repeated.

Claims

1. A three-axis gantry type aluminum bar sawing machine, comprising a gantry main body, characterized in that: The gantry main body includes a top connecting cross beam, and two columns are provided at the bottom of the top connecting cross beam. A first motor is provided on each of the two columns, a first ball screw mechanism is provided on the motor, a moving cross beam is provided on the first ball screw mechanism, and the first ball screw mechanism can drive the moving cross beam to move up and down; A second motor is provided on the moving cross beam, and a second ball screw mechanism is provided on the second motor; a sawing mechanism is provided on the second ball mechanism, and the second ball screw mechanism can drive the sawing mechanism to move left and right; A position sensor is provided on the moving cross beam, and the position sensor is used to detect the left and right moving positions of the sawing mechanism; The sawing machine further includes a control system, and the first motor, the second motor, the sawing mechanism and the position sensor are all connected to the control system.

2. A three-axis gantry type aluminum bar sawing machine according to claim 1, characterized in that: The sawing mechanism includes a third motor, a frame is provided at the bottom of the third motor, the moving cross beam is located inside the frame, the frame is slidably connected to the moving cross beam, a saw main shaft is provided on the output shaft of the third motor, a saw cylinder is provided on the saw main shaft, the saw cylinder is fixedly connected to the frame, a saw blade is provided at the end of the saw main shaft, and the saw blade is detachably and fixedly connected to the saw main shaft.

3. The three-axis gantry type aluminum bar sawing machine according to claim 2, characterized in that: The saw cylinder is fixedly connected to the bottom of the frame, pulley wheels are provided on both the motor output shaft and the saw main shaft, and a main shaft belt is installed on the two pulley wheels.

4. A three-axis gantry type aluminum bar sawing machine according to claim 2, characterized in that: Sliding rails are provided at both the top and the bottom of the moving cross beam, sliders are provided on the sliding rails, and the sliders are fixedly connected to the frame.

5. A three-axis gantry type aluminum bar sawing machine according to claim 1, characterized in that: A counterweight lifting mechanism is provided on the column, and the counterweight lifting mechanism is connected to the moving cross beam.

6. A three-axis gantry type aluminum bar sawing machine according to claim 1, characterized in that: Both the first motor and the second motor adopt servo motors.

7. A three-axis gantry type aluminum bar sawing machine according to claim 1, characterized in that: A sawdust recovery device is arranged directly below the sawing mechanism.

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