A double-column metal band saw machine with sawing gantry

Abstract

This utility model relates to the field of metal band saw technology and discloses a gantry double-column metal band saw, including a saw base, a saw body, and a rotary clamping device. A gantry double-column rod is located at the center of the top of the saw base, and the saw body is located on the outer side of the gantry double-column rod. The saw body is hydraulically slidably connected to the gantry double-column rod. A mounting box is located on the back of the saw base, and the rotary clamping device is installed inside the mounting box. A saw blade is located on the side of the saw body opposite to the rotary clamping device, and the saw blade is perpendicularly distributed to the gantry double-column rod. This metal band saw has a simple structure and can rotate the workpiece fixed at the top of the rotary clamping device at a certain angle, enabling the metal band saw to perform angled workpiece sawing, expanding the applicability of the overall structure and significantly improving sawing accuracy and quality.

Description

Technical Field

[0001] This utility model relates to the field of metal band saw technology, specifically a double-column metal band saw for sawing gantry. Background Technology

[0002] In the field of metal processing, metal band saws are widely used as core cutting equipment in industries such as machinery manufacturing, shipbuilding, and aerospace. With industrial upgrading, the demand for processing various complex structural parts is increasing, which puts forward higher requirements for the functional diversity and processing accuracy of metal band saws.

[0003] Traditional metal band saws mainly rely on clamping devices to fix the workpiece to be processed. Although this device can achieve basic clamping and positioning, it has significant drawbacks. It usually only has a single clamping function and lacks the ability to adjust the workpiece at multiple angles. This means that the sawing process can only produce a cut perpendicular to the workpiece surface without any angle. This limitation makes it unable to meet diverse cutting needs such as beveling and kerfing. It may even require additional equipment or manual secondary processing, which not only increases processing costs and time costs, but may also lead to the accumulation of processing errors due to multiple clamping, affecting the quality of the final product. To address this, we propose a gantry double-column metal band saw. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a double-column metal band saw for sawing gantry, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a gantry double-column metal band saw, comprising a saw base, a saw body, and a rotary clamping device. The top center of the saw base is provided with a gantry double-column rod, and the saw body is provided on the outer side of the gantry double-column rod. The saw body is hydraulically slidably connected to the gantry double-column rod. A mounting box is provided on the back of the saw base, and the rotary clamping device is provided inside the mounting box. A saw blade is provided on the side of the saw body away from the rotary clamping device, and the saw blade is perpendicularly distributed to the gantry double-column rod.

[0008] Preferably, the side wall of the saw base is provided with a control device, and the top of the saw base is provided with a support plate corresponding to the bottom of the gantry double column rod, and the support plate and the control device are on the same side.

[0009] Preferably, the top of the mounting box has an annular cavity with a circular opening at the top. The mounting box has an inner cavity inside, and a motor compartment is located at the bottom inside the mounting box with a rectangular opening on the side wall. A set of fixing holes is provided on the top side of the mounting box in an annular pattern, and limit blocks are welded to both ends of the annular fixing holes.

[0010] Preferably, the rotary clamping device consists of four parts: a motor, a reduction gear, a supporting thrust ball bearing, and a clamping table. The top output shaft of the motor is connected to the reduction gear, the top of the reduction gear is connected to the clamping table, the supporting thrust ball bearing is placed inside the annular cavity, and the top of the supporting thrust ball bearing is in contact with the bottom end face of the clamping table.

[0011] Preferably, the clamping table has two hydraulic tanks distributed symmetrically on two opposite sides. Each hydraulic tank has a hydraulic output rod on its opposite side. A clamping plate is welded to the shaft end of the hydraulic output rod. The clamping plate is in a vertical position and has a concave-convex layer on the side wall end face. A second fixing hole is opened on the bottom side wall of the clamping table away from the saw body. The second fixing hole is engaged with the first fixing hole by an adapter pin.

[0012] Preferably, the motor is fixedly connected to the top of the motor compartment via an adapter screw, and the output shaft of the motor is inserted into the inner cavity, with a speed reduction device placed inside the inner cavity.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a double-column metal band saw for sawing gantry, which has the following beneficial effects:

[0015] 1. This double-column metal band saw with a gantry design enables precise multi-angle cutting, enhancing its processing versatility. Thanks to its rotary clamping device, it allows for precise multi-angle adjustment of the workpiece, breaking the limitation of traditional band saws that can only cut vertically. It can easily complete complex processes such as oblique cutting. In scenarios such as the processing of steel structure bridge connectors, it can complete cuts at specific angles without secondary processing. The deceleration device and the supporting thrust ball bearing work together to effectively avoid errors caused by multiple clamping operations, meeting the stringent requirements for processing accuracy in fields such as aerospace, and greatly expanding the application scenarios of the band saw.

[0016] 2. This gantry double-column metal band saw offers efficient and stable processing, reducing overall costs. The saw employs a gantry double-column structure with hydraulic sliding cooperation, complemented by a support plate for stable processing of large metal workpieces. The rotary clamping device features a hydraulically driven clamping plate with a concave-convex layer design, effectively preventing workpiece displacement during cutting and reducing scrap output. The integrated control device combines saw lifting, sawing power adjustment, and workpiece angle control functions, simplifying operation and improving work efficiency. Furthermore, the support thrust ball bearing reduces wear on the clamping table, extending equipment maintenance cycles and effectively helping companies reduce processing and equipment maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the double-column metal band saw for sawing gantry according to this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the double-column metal band saw for sawing gantry according to the present invention.

[0019] Figure 3 This is a cross-sectional schematic diagram of the saw base and the saw body of this utility model.

[0020] Figure 4 This is a schematic diagram of the rotary clamping device of this utility model.

[0021] In the diagram: 1. Sawing machine base; 2. Sawing machine body; 3. Rotary clamping device; 4. Gantry double column rod; 5. Control device; 6. Support plate; 7. Saw blade; 8. Mounting box; 9. Ring cavity; 10. Inner cavity; 11. Motor compartment; 12. Fixing hole one; 13. Limiting block; 14. Motor; 15. Reduction gear; 16. Support thrust ball bearing; 17. Clamping table; 18. Hydraulic tank; 19. Hydraulic output rod; 20. Clamping plate; 21. Concave-convex layer; 22. Fixing hole two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4A gantry double-column metal band saw includes a saw base 1, a saw body 2, and a rotary clamping device 3. The top center of the saw base 1 is provided with a gantry double column rod 4, and the saw body 2 is provided on the outside of the gantry double column rod 4. The saw body 2 is hydraulically slidably connected to the gantry double column rod 4. The back of the saw base 1 is provided with a mounting box 8, and the rotary clamping device 3 is provided inside the mounting box 8. A saw blade 7 is provided on the side of the saw body 2 away from the rotary clamping device 3. The saw blade 7 is perpendicular to the gantry double column rod 4.

[0024] Furthermore, the side wall of the saw base 1 is provided with a control device 5, and the top of the saw base 1 is provided with a support plate 6 corresponding to the bottom of the gantry double column rod 4. The support plate 6 and the control device 5 are on the same side. The control device 5 controls the lifting and lowering of the saw body 2 and the sawing power, and also controls the rotation angle of the rotary clamping device 3 to ensure the accuracy of the cutting angle.

[0025] Furthermore, the top of the mounting box 8 has an annular cavity 9, and the top end of the annular cavity 9 has a circular opening structure. The inside of the mounting box 8 has an inner cavity 10, and the bottom of the inside of the mounting box 8 has a motor compartment 11, and the side wall of the motor compartment 11 has a rectangular opening structure. The top side of the mounting box 8 has a set of fixed holes 12 that are evenly distributed in an annular shape, and the two ends of the annular fixed holes 12 are welded with limit blocks 13. The mounting box 8 provides support for the rotary clamping device 3, effectively ensuring the high-precision clamping and angle adjustment of the rotary clamping device 3.

[0026] Furthermore, the rotary clamping device 3 consists of four parts: a motor 14, a reduction gear 15, a support thrust ball bearing 16, and a clamping table 17. The top output shaft of the motor 14 is connected to the reduction gear 15, and the top of the reduction gear 15 is connected to the clamping table 17. The support thrust ball bearing 16 is placed inside the annular cavity 9, and the top of the support thrust ball bearing 16 is in contact with the bottom end face of the clamping table 17. The output shaft of the motor 14 can achieve ultra-high precision adjustment of the rotation angle of the clamping table 17 through the reduction gear 15. The support thrust ball bearing 16 effectively ensures the smoothness of the rotation process, prevents the clamping table 17 from having difficulty rotating due to excessive load, reduces wear, and improves service life and adjustment accuracy.

[0027] Furthermore, the clamping table 17 has two hydraulic tanks 18 arranged symmetrically on two opposite sides. Each hydraulic tank 18 has a hydraulic output rod 19 on its opposite side. A clamping plate 20 is welded to the shaft end of the hydraulic output rod 19. The clamping plate 20 is in a vertical position, and the side wall end face of the clamping plate 20 has a concave-convex layer 21. The bottom side wall of the clamping table 17, away from the saw body 2, has a fixing hole 22. The fixing hole 22 is connected to the fixing hole 12 by an adapter pin. The hydraulic tank 18 is controlled by the control device 5 to extend and retract the hydraulic output rod 19 to ensure the clamping force of the workpiece to be processed. The concave-convex layer 21 on the side wall end face of the clamping plate 20 can increase the frictional resistance of the clamping surface, prevent the workpiece to be processed from moving, and improve the sawing accuracy. The fixing hole 22 is connected to the fixing hole 12 by an adapter pin to effectively ensure the stability of the angle adjustment and play a protective role.

[0028] Furthermore, the motor 14 is fixedly connected to the top of the motor compartment 11 by an adapter screw, and the top output shaft of the motor 14 is inserted into the inner cavity 10, and the reduction gear 15 is placed inside the inner cavity 10.

[0029] Structural Description:

[0030] Band saw base 1: Band saw base 1 is the basic load-bearing structure of the band saw. The top center is equipped with a gantry double column rod 4, the side wall is equipped with a control device 5, and the back is equipped with a mounting box 8, which provides a stable support platform for the operation of the whole machine.

[0031] Sawing machine body 2: The sawing machine body 2 is the sawing execution structure. It is hydraulically slidably connected to the gantry double column rod 4 on the outside and the saw blade 7 is installed on the side opposite to the rotary clamping device 3 to realize the cutting operation of metal workpieces.

[0032] Rotary clamping device 3: The rotary clamping device 3 consists of four parts, including motor 14, and is installed in the mounting box 8. It can realize multi-angle positioning and clamping of workpieces to meet the needs of complex processing such as oblique cutting.

[0033] Gantry double column rod 4: The gantry double column rod 4 is vertically installed on the top of the saw base 1, providing a hydraulic sliding track for the saw body 2, ensuring the stability of the sawing process and improving the rigidity and load-bearing capacity of the equipment;

[0034] Control device 5: The control device 5 is installed on the side wall of the saw base 1 and integrates the lifting, sawing power adjustment and clamping device angle control functions of the saw body 2, so as to realize the intelligent operation of the equipment;

[0035] Support plate 6: The support plate 6 is located at the top of the saw base 1, corresponding to the bottom of the gantry double column rod 4, to assist in supporting the gantry double column rod 4, enhance the stability of the whole machine, and ensure the structural strength when processing large workpieces;

[0036] Saw blade 7: The saw blade 7 is vertically installed on one side of the saw body 2 and serves as a direct cutting component. It completes the sawing of metal workpieces under the drive of the saw body 2, and its operation is controlled by the control device 5.

[0037] Mounting box 8: Mounting box 8 is located on the back of the saw base 1. It contains a rotary clamping device 3 and has a ring cavity 9 on the top to provide installation space and movement support for the clamping device.

[0038] Annular cavity 9: Annular cavity 9 is located at the top of mounting box 8 and has a circular opening structure. It has a built-in support thrust ball bearing 16 to provide guidance and support for the rotation of clamping table 17 and ensure smooth rotation.

[0039] Inner cavity 10: Inner cavity 10 is the internal cavity of the mounting box 8, used to house the reduction gear 15, which, together with the motor compartment 11, realizes the transmission and reduction adjustment of the power of the output shaft of the motor 14;

[0040] Motor compartment 11: The motor compartment 11 is located at the bottom of the mounting box 8, with a rectangular opening on the side wall, for fixing and installing the motor 14, and providing a power source for the rotary clamping device 3;

[0041] Fixing hole 12: Fixing holes 12 are distributed in a ring at equal intervals on the top of the mounting box 8, and are engaged with fixing holes 22 of the clamping table 17 by a pin, so as to achieve locking after the angle of the clamping table is adjusted.

[0042] Limiting block 13: The limiting block 13 is welded to both ends of the annular ring of the fixing hole 12 to limit the rotation range of the clamping table 17, prevent excessive rotation, and ensure the safety and accuracy of angle adjustment.

[0043] Motor 14: Motor 14 is installed in motor compartment 11, and its output shaft is connected to reduction gear 15 to provide power to rotary clamping device 3 and realize the rotation angle adjustment of clamping table 17.

[0044] Speed ​​reduction device 15: The speed reduction device 15 is located in the inner cavity 10 and cooperates with the output shaft of the motor 14 to reduce the power with high precision, ensuring that the clamping table 17 can achieve precise angle adjustment;

[0045] Supporting thrust ball bearing 16: The supporting thrust ball bearing 16 is placed in the annular cavity 9 and fits against the bottom of the clamping table 17 to reduce rotational friction, ensure smooth rotation of the clamping table, and reduce equipment wear;

[0046] Clamping table 17: Clamping table 17 is a workpiece bearing platform. Hydraulic tanks 18 are provided on both sides, and a second fixing hole 22 is opened at the bottom. Stable clamping and positioning of the workpiece can be achieved through hydraulic clamping and angle adjustment.

[0047] Hydraulic tank 18: The hydraulic tank 18 is symmetrically distributed on both sides of the clamping table 17. It is controlled by the control device 5, which drives the hydraulic output rod 19 to extend and retract, and adjusts the clamping force of the clamping plate 20 on the workpiece.

[0048] Hydraulic output rod 19: Hydraulic output rod 19 connects hydraulic box 18 and clamping plate 20, and realizes telescopic movement under hydraulic drive, driving clamping plate to clamp or release workpiece to be processed;

[0049] Clamping plate 20: The clamping plate 20 is vertically installed at the shaft end of the hydraulic output rod 19, and the side wall is provided with a concave-convex layer 21 to increase the friction force to prevent the workpiece from shifting and ensure the sawing accuracy.

[0050] Concave-convex layer 21: Concave-convex layer 21 is provided on the side wall of clamping plate 20. The surface roughness is increased by special texture design, which improves the friction between the workpiece and the clamping stability.

[0051] Fixing hole 22: Fixing hole 22 is located at the bottom of the clamping table 17 and is engaged with fixing hole 12 of the mounting box 8 by a pin to fix the angle of the clamping table after adjustment, ensuring cutting stability.

[0052] Working Principle: Install the double-column metal band saw correctly according to the diagram. When the double-column metal band saw is running, first place the workpiece to be processed on the clamping table 17. The control device 5 starts the hydraulic tank 18, and the hydraulic output rod 19 pushes the clamping plate 20. The uneven layer 21 on the side wall of the clamping plate 20 increases the friction force, firmly clamping the workpiece. If angle cutting is required, the control device 5 sends a command to the motor 14. The output shaft of the motor 14 is reduced in high precision by the reduction device 15, driving the clamping table 17 to rotate smoothly around the support thrust ball bearing 16 in the ring cavity 9, passing through the fixing hole. The pin of the second 22 is engaged with the fixed hole 12 to fix the angle. At the same time, the control device 5 controls the saw body 2 to slide and lift along the gantry double column 4 hydraulically, adjusts the saw blade 7 to a suitable cutting height, and controls the saw blade 7 to operate at the set power. After the workpiece and the saw blade 7 are both adjusted to the correct position, the saw body 2 drives the saw blade 7 to perform the cutting operation. During the cutting process, the support plate 6 assists in supporting the gantry double column 4 to enhance the overall stability of the saw. The limit block 13 prevents displacement deviation when the clamping table 17 rotates, ensuring that the sawing angle and accuracy meet the requirements until the entire cutting task is completed.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sawing gantry double-column metal band saw machine comprising a saw machine base (1), a saw machine body (2) and a rotary clamping device (3), characterized in that: The top center of the saw base (1) is provided with a gantry double column rod (4), and the outside of the gantry double column rod (4) is provided with a saw body (2). The saw body (2) is hydraulically slidably connected to the gantry double column rod (4). The back of the saw base (1) is provided with a mounting box (8). The mounting box (8) is provided with a rotary clamping device (3). The saw body (2) is provided with a saw blade (7) on the side away from the rotary clamping device (3). The saw blade (7) is vertically distributed to the gantry double column rod (4).

2. A sawing gantry double-column metal band saw machine according to claim 1, characterized in that: The saw base (1) is provided with a control device (5) on its side wall, and the top of the saw base (1) is provided with a support plate (6) corresponding to the bottom of the gantry double column rod (4), and the support plate (6) and the control device (5) are on the same side.

3. The double column band saw machine according to claim 1, wherein: The mounting box (8) has an annular cavity (9) at the top, and the top end of the annular cavity (9) is a circular opening structure. The mounting box (8) has an inner cavity (10) inside. The mounting box (8) has a motor compartment (11) at the bottom inside, and the side wall of the motor compartment (11) is a rectangular opening structure. The top side of the mounting box (8) has a set of fixed holes (12) that are evenly distributed in an annular shape, and the two ends of the annular fixed holes (12) are welded with limit blocks (13).

4. The double column band saw machine according to claim 1, wherein: The rotary clamping device (3) consists of four parts: a motor (14), a speed reduction device (15), a support thrust ball bearing (16), and a clamping table (17). The top output shaft of the motor (14) is connected to the speed reduction device (15), the top of the speed reduction device (15) is connected to the clamping table (17), the support thrust ball bearing (16) is placed inside the annular cavity (9), and the top of the support thrust ball bearing (16) is in contact with the bottom end face of the clamping table (17).

5. A sawing gantry double-column metal band saw machine according to claim 4, characterized in that: The clamping table (17) has two hydraulic tanks (18) arranged symmetrically on two opposite sides. Each of the two hydraulic tanks (18) has a hydraulic output rod (19) on opposite sides. A clamping plate (20) is welded to the shaft end of the hydraulic output rod (19). The clamping plate (20) is in a vertical position, and the side wall end face of the clamping plate (20) has a concave-convex layer (21). The bottom side wall of the clamping table (17) is provided with a fixing hole two (22) on the side away from the saw body (2). The fixing hole two (22) is connected to the fixing hole one (12) by an adapter pin.

6. A double-column metal band saw for sawing gantry according to claim 4, characterized in that: The motor (14) is fixedly connected to the top of the motor compartment (11) by an adapter screw, and the output shaft of the top of the motor (14) is inserted into the inner cavity (10), and the speed reduction device (15) is placed inside the inner cavity (10).

Images