Numerical control sawing machine with automatic feeding and discharging functions

Abstract

The invention relates to the technical field of numerical control sawing machine equipment. The automatic feeding and discharging numerical control sawing machine comprises an elastic clamping mechanism, a rack, an automatic feeding and discharging unit, a sawing unit and a central control system. The elastic clamping mechanism is a core component, comprises a fixing assembly, a lifting assembly and a grabbing and clamping assembly, and can automatically adjust the pressing force according to the diameter of the iron rod. The fixing assembly drives gear transmission through a motor, the stability is enhanced in cooperation with an iron attraction block, and accurate power is provided for the lifting assembly. The lifting assembly drives the grabbing and clamping assembly to accurately align, and the movable disc ensures that the clamping force is uniform. And the grabbing and clamping assembly adopts a linkage structure of three groups of moving rods and rotating shafts, so that flexible clamping is realized, and the bar material is prevented from being damaged. The automatic feeding and discharging unit completes full-automatic transfer of iron rods, the saw cutting unit achieves accurate saw cutting, and the central control system overall plans all the units to work cooperatively, receives detection signals and instructs the clamping mechanism to adjust pressure.

Description

Technical Field

[0001] This invention relates to the field of CNC sawing technology, specifically to a CNC sawing machine with automatic loading and unloading. Background Technology

[0002] In the metal processing industry, iron bar sawing is one of the fundamental processes, and CNC sawing machines, as core equipment, directly affect production efficiency and product quality. Currently, most sawing machines on the market suffer from low automation, relying heavily on manual loading and unloading. Operators must frequently move the iron bars, resulting in high labor intensity and potential fatigue that can lead to loading position deviations, affecting sawing accuracy. Furthermore, manual operation poses significant safety hazards; accidental contact during sawing can easily cause accidents.

[0003] Existing saw clamping mechanisms are mostly designed with fixed specifications, which cannot adapt to the processing needs of iron bars of different diameters. Changing the processing specifications requires manual disassembly and replacement of the clamping fixture, which is time-consuming and labor-intensive. Frequent replacements can also lead to a decrease in clamping accuracy, resulting in problems such as iron bar movement or surface damage. Although some improved clamping mechanisms have adjustment functions, they rely on manual adjustment of pressure and cannot achieve adaptive adjustment according to the diameter of the iron bar, making it difficult to balance clamping stability and surface protection requirements.

[0004] Furthermore, the poor coordination between functional units and the lack of unified control over loading, unloading, clamping, and sawing actions lead to poor workflow and limited production efficiency. Therefore, this invention proposes an automatic loading and unloading CNC sawing machine to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a CNC saw with automatic loading and unloading to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic loading and unloading CNC saw, comprising a clamping mechanism, a frame, an automatic loading and unloading unit, a sawing unit, and a central control system, wherein the elastic clamping mechanism is used to automatically adjust the roller pressing force according to the diameter of the iron bar;

[0007] It includes a fixing component, a lifting component, and a gripping component. The fixing component is used to drive the lifting component to move so that the gripping component connected to the bottom of the lifting component can accurately align the iron bar to be gripped.

[0008] The gripping assembly is used to achieve flexible clamping of the iron bar, and the pressure adjustment function of the elastic clamping mechanism ensures clamping stability.

[0009] The automatic loading and unloading unit is used to automatically complete the loading and conveying of iron bars and the unloading and transfer of sawn iron bars.

[0010] The sawing unit is used to precisely saw the clamped and fixed iron bar to a preset length.

[0011] The central control system is used to coordinate the collaborative work of each unit, receive relevant detection signals, and instruct the clamping mechanism to adjust the pressure.

[0012] As a preferred embodiment of the present invention, the fixing component includes a support frame, with magnetic blocks fixedly connected to both ends of the support frame, a motor fixedly connected to one end of the top of the support frame, and a lifting component connected to the other end.

[0013] As a preferred embodiment of the present invention, a first gear is connected to the bottom output shaft of the motor, a second gear is meshed with the outer surface of the first gear, and a rotating housing is fixedly connected to the bottom of the second gear.

[0014] As a preferred embodiment of the present invention, the lifting assembly includes a lifting column, the bottom of which is connected to the other end of the top of the support frame, a movable disc is fixedly connected to the bottom of the lifting column, and gripping assemblies are correspondingly connected to the grooves on the outer surface of the movable disc.

[0015] As a preferred embodiment of the present invention, the gripping assembly includes three first movable rods, the tops of which are connected to the grooves on the outer surface of the movable disc, and the bottoms of which are movably connected to second movable rods.

[0016] As a preferred embodiment of the present invention, each of the three first moving rods is movably connected to a rotating shaft at the connection point between it and the second moving rod, and both ends of the three rotating shafts are movably connected to the inner surface of the rotating housing. Each of the three second moving rods is fixedly connected to a gripping block on the outer side of its bottom.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) A CNC saw with automatic loading and unloading, which can automatically adjust the roller pressure according to the diameter of the iron bar through the elastic clamping mechanism, breaking through the limitations of the traditional fixed clamping method and adapting to the processing needs of iron bars of different specifications. There is no need for manual replacement of clamping fixtures, which not only reduces the time cost of fixture replacement and the intensity of manual operation, but also avoids the problem of loose clamping or surface damage caused by mismatch of specifications, and greatly improves the equipment's compatibility and processing flexibility for multi-specification bars.

[0019] (2) A CNC sawing machine with automatic loading and unloading, which uses a motor to drive the first gear and the second gear to mesh, providing a precise power source for the movement of the lifting component. With the magnetic blocks at both ends of the support frame, the connection stability between the fixed component and the frame can be enhanced, avoiding positional displacement caused by vibration during processing. The gear transmission design ensures the high efficiency of power transmission and motion accuracy, making the movement of the lifting component smoother and the positioning more accurate, laying the foundation for the accuracy guarantee of subsequent clamping and sawing processes.

[0020] (3) A CNC saw with automatic loading and unloading, through the cooperation of the lifting column and the movable disc, can drive the gripping assembly to achieve precise vertical movement, ensuring that the gripping assembly can quickly align with the center position of iron bars of different diameters to be clamped. The structural design of the movable disc provides a stable installation benchmark for the gripping assembly, and can also be adapted to the synchronous linkage of multiple sets of gripping assemblies, so that the clamping force is evenly distributed on the outer circle of the iron bar, further improving the clamping stability and avoiding the movement of the bar during sawing that affects the cutting accuracy.

[0021] (4) An automatic loading and unloading CNC saw, which achieves flexible clamping through a linkage structure of "three first moving rods + second moving rods + rotating shaft" and a bottom gripping block. The rotating shaft is movably connected to the rotating shell, and the gripping angle can be adaptively adjusted according to the diameter of the iron rod, so that the gripping block fits tightly with the outer circle of the iron rod; the linkage design of multiple moving rods can ensure the uniform transmission of clamping force, which not only ensures the fixed reliability of the iron rod during the sawing process, but also avoids scratches on the surface of the iron rod by hard clamping through flexible contact, thus improving the surface quality of the finished product.

[0022] (5) A CNC sawing machine with automatic loading and unloading, which can realize the full automation of the iron bar "loading and conveying - sawing - unloading and transfer" through the automatic loading and unloading unit, without the need for manual feeding and picking, greatly reducing the labor intensity of operators, and avoiding the safety hazards that may occur during manual operation. The automated transfer mode can also ensure the consistency of loading position and the standardization of unloading and sorting, reduce the impact of human factors on processing efficiency, enable the equipment to achieve continuous batch production, and significantly improve the overall processing efficiency.

[0023] (6) An automatic loading and unloading CNC sawing machine, with a central control system as the core control unit, coordinates the collaborative work of the clamping mechanism, automatic loading and unloading unit, and sawing unit. It uses received detection signals to instruct the clamping mechanism to adjust the pressure in real time, realizing closed-loop control of "diameter detection - pressure matching - precise clamping - stable sawing". This design reduces manual intervention and processing errors caused by human error. At the same time, it supports parameter preset and operation status monitoring, which makes it easy for operators to adjust according to processing needs, improving the ease of operation and processing accuracy stability of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall clamping mechanism of the present invention;

[0025] Figure 2 This is a schematic diagram of the fixing component of the present invention;

[0026] Figure 3 This is a schematic diagram of the lifting component of the present invention;

[0027] Figure 4 This is a schematic diagram of the gripper assembly of the present invention.

[0028] In the diagram: 1. Clamping mechanism; 11. Fixing component; 111. Support frame; 112. Magnet; 113. Motor; 114. First gear; 115. Second gear; 116. Rotating outer shell; 12. Lifting component; 121. Lifting column; 122. Movable disc; 13. Gripping component; 131. First moving rod; 132. Second moving rod; 133. Rotating shaft; 134. Gripping block; 2. Frame; 3. Automatic loading and unloading unit; 4. Sawing unit; 5. Central control system. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Please refer to Figure 1 A CNC saw with automatic loading and unloading includes a clamping mechanism 1, a frame 2, an automatic loading and unloading unit 3, a sawing unit 4, and a central control system 5. The elastic clamping mechanism 1 is used to automatically adjust the pressure of the rollers according to the diameter of the iron bar.

[0031] The elastic clamping mechanism 1 automatically adjusts the roller pressure according to the diameter of the iron bar, breaking through the limitations of traditional fixed clamping methods and adapting to the processing needs of iron bars of different specifications. It eliminates the need for manual replacement of clamping fixtures, reducing the time cost and labor intensity of fixture changes, and avoiding problems such as loose clamping or surface damage caused by mismatched specifications. This significantly improves the equipment's compatibility and processing flexibility for multi-specification bars.

[0032] It includes a fixing component 11, a lifting component 12 and a gripping component 13. The fixing component 11 is used to drive the lifting component 12 to move so that the gripping component 13 connected to the bottom of the lifting component 12 can be accurately aligned with the position to be gripped on the iron bar.

[0033] The gripping assembly 13 is used to achieve flexible gripping of the iron bar, and the pressure adjustment function of the elastic gripping mechanism 1 ensures gripping stability.

[0034] The automatic loading and unloading unit 3 is used to automatically complete the loading and conveying of iron bars and the unloading and transfer of sawn iron bars.

[0035] The sawing unit 4 is used to precisely saw the clamped and fixed iron bar to a preset length.

[0036] The central control system 5 is used to coordinate and control the collaborative work of each unit, receive relevant detection signals, and instruct the clamping mechanism 1 to adjust the pressure.

[0037] Example 2: Based on Example 1, as follows Figure 2-4 As shown, the fixing component 11 includes a support frame 111, with magnetic blocks 112 at both ends of the support frame 111, and both ends of the support frame 111 are fixedly connected to the top of the magnetic blocks 112. A motor 113 and a lifting component 12 are provided at both ends of the top of the support frame 111, and both ends of the top of the support frame 111 are connected to the bottom of the motor 113 and the lifting component 12.

[0038] The motor 113 has a first gear 114 at its bottom output shaft end, which is connected to the top center of the first gear 114. A second gear 115 is provided on the outer surface of the first gear 114, and the outer surfaces of the first gear 114 and the second gear 115 are meshed together. A rotating housing 116 is provided at the bottom of the second gear 115. The motor 113 drives the first gear 114 and the second gear 115 to mesh, providing a precise power source for the movement of the lifting assembly 12. Combined with the magnetic blocks 112 at both ends of the support frame 111, this enhances the connection stability between the fixed assembly 11 and the frame 2, preventing positional shifts caused by vibration during processing. The gear transmission design ensures high efficiency and motion precision in power transmission, making the movement of the lifting assembly 12 smoother and its positioning more accurate, laying the foundation for the precision assurance of subsequent clamping and sawing processes. Furthermore, the bottom of the second gear 115 is fixedly connected to the top of the rotating housing 116.

[0039] The lifting assembly 12 includes a lifting column 121, the bottom of which is connected to the other end of the top of the support frame 111. A movable disc 122 is provided at the bottom of the lifting column 121, and the bottom of the lifting column 121 is fixedly connected to the center of the top of the movable disc 122. Each groove on the outer surface of the movable disc 122 is equipped with a gripping assembly 13. Through the cooperation of the lifting column 121 and the movable disc 122, the gripping assembly 13 can move precisely in the vertical direction, ensuring that the gripping assembly 13 can quickly align with the center position to be clamped on iron bars of different diameters. The structural design of the movable disc 122 provides a stable installation reference for the gripping assembly 13, and can also accommodate the synchronous linkage of multiple sets of gripping assemblies 13, so that the clamping force is evenly distributed on the outer circumference of the iron bar, further improving clamping stability and preventing the bar material from shifting during sawing and affecting the cutting accuracy. Furthermore, each groove on the outer surface of the movable disc 122 is correspondingly connected to the top of the gripping assembly 13.

[0040] The gripping assembly 13 includes three first moving rods 131. The tops of the three first moving rods 131 are connected to the grooves on the outer surface of the movable disc 122. The bottoms of the three first moving rods 131 are provided with second moving rods 132, and the bottoms of the three first moving rods 131 are movably connected to the grooves at the tops of the second moving rods 132.

[0041] Each of the three first moving rods 131 and second moving rods 132 is equipped with a rotating shaft 133 at its connection point. The connection points of the three first moving rods 131 and second moving rods 132 are movably connected to the outer surface of the center of the rotating shaft 133. Both ends of the three rotating shafts 133 are movably connected to the inner surface of the rotating housing 116. Each of the three second moving rods 132 has a gripping block 134 on its bottom outer side. Through the linkage structure of "three first moving rods 131 + second moving rods 132 + rotating shaft 133," flexible clamping is achieved in conjunction with the bottom gripping block 134. The movable connection between the rotating shaft 133 and the rotating housing 116 allows for adaptive adjustment of the gripping angle according to the diameter of the iron rod, ensuring a tight fit between the gripping block 134 and the outer circumference of the iron rod. The linkage design of multiple moving rods ensures uniform transmission of clamping force, guaranteeing the reliability of the iron rod's fixation during sawing and preventing scratches on the iron rod surface from hard clamping through flexible contact, thus improving the surface quality of the finished product. Furthermore, the outer bottom of each of the three second moving rods 132 is fixedly connected to the inner top of the gripping block 134.

[0042] The working principle of this invention is as follows:

[0043] First, the operator presets parameters such as the iron bar sawing length and clamping pressure threshold through the human-machine interface of the central control system 5. After the system is started, the automatic loading and unloading unit 3 starts to perform the loading action, smoothly transporting the iron bar to be processed from the storage area to the sawing station. During this process, the central control system 5 simultaneously receives the iron bar diameter data fed back by the detection device at the station and generates control commands in combination with the preset parameters.

[0044] Subsequently, the command is transmitted to the elastic clamping mechanism 1. Its fixing component 11 is first tightly attracted to the frame 2 by the magnetic blocks 112 at both ends of the support frame 111 to ensure its own installation stability and avoid position displacement caused by subsequent processing vibration. Then, the central control system 5 commands the motor 113 at the top of the support frame 111 to start. The motor 113 drives the first gear 114 connected to the bottom output shaft to rotate. Through the mutual meshing of the first gear 114 and the second gear 115, the power can be accurately transmitted to the rotating housing 116 connected to the bottom of the second gear 115.

[0045] At the same time, the lifting column 121 in the lifting assembly 12 drives the movable disc 122 to move precisely in the vertical direction according to the diameter data of the iron rod, so that the gripping assembly 13 connected to the groove on the outer surface of the movable disc 122 unfolds and grips.

[0046] Under the pulling action of the lifting column 121, the gripping assembly 13 achieves adaptive angle adjustment through the rotating shaft 133 at the connection between the three first moving rods 131 and the second moving rods 132. The movable connection between the rotating shaft 133 and the inner surface of the rotating shell 116 allows the first moving rods 131 and the second moving rods 132 to flexibly adjust their opening and closing angles according to the diameter of the iron rod. Ultimately, this causes the gripping block 134 at the bottom to fit tightly against the outer circle of the iron rod. During this process, the central control system 5 receives pressure detection signals in real time and instructs the elastic clamping mechanism 1 to automatically adjust the pressure of the gripping block 134, ensuring clamping stability while avoiding damage to the surface of the iron rod, thus achieving flexible clamping.

[0047] Once the iron bar is securely clamped, the central control system 5 instructs the sawing unit 4 to start. The sawing unit 4 precisely saws the fixed iron bar according to the preset length. During the sawing process, the gear transmission structure of the fixed component 11 ensures that the lifting component 12 and the gripping component 13 remain stable. The movable disc 122 distributes the clamping force evenly, effectively preventing the bar from shifting and ensuring the cutting accuracy.

[0048] After sawing is completed, the central control system 5 first instructs the gripping component 13 of the elastic clamping mechanism 1 to release, and then the gripping block 134 is reset through the cooperation of the motor 113 and the lifting component 12. Then, the automatic loading and unloading unit 3 is instructed to transfer the sawn finished iron bar to the unloading area, and at the same time, the tail material is sorted or recycled. This completes a single processing cycle. The central control system 5 can control each unit to repeat the above process according to the storage conditions and processing requirements to achieve continuous automated production.

[0049] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding and discharging numerical control sawing machine, comprising a clamping mechanism (1), a rack (2), an automatic feeding and discharging unit (3), a sawing unit (4) and a central control system (5), characterized in that: The elastic clamping mechanism (1) is used for automatically adjusting the roller pressing force according to the diameter of the iron bar; The fixing assembly (11) is used for driving the lifting assembly (12) to move, so that the clamping assembly (13) connected with the bottom of the lifting assembly (12) can accurately align the position to be clamped of the iron bar; The clamping assembly (13) is used for realizing flexible clamping of the iron bar, and the pressure adjusting function of the elastic clamping mechanism (1) guarantees the clamping stability; The automatic feeding and discharging unit (3) is used for automatically completing the feeding and conveying of the iron bar and the discharging and transferring after sawing; The sawing unit (4) is used for accurately sawing the iron bar clamped and fixed to a preset length; The central control system (5) is used for overall control of the cooperative work of each unit, receiving relevant detection signals and instructing the clamping mechanism (1) to adjust the pressing force.

2. The numerical control sawing machine of claim 1, wherein: The fixing assembly (11) comprises a support frame (111), and the two ends of the support frame (111) are fixedly connected with suction blocks (112).

3. The numerical control sawing machine of claim 2, wherein: The bottom output shaft end of the motor (113) is correspondingly connected with a first gear (114), the outer surface of the first gear (114) is meshedly connected with a second gear (115), and the bottom of the second gear (115) is fixedly connected with a rotating shell (116).

4. The numerical control sawing machine of claim 2, wherein: The lifting assembly (12) comprises a lifting column (121), and the bottom of the lifting column (121) is connected with the other end of the top of the support frame (111).

5. The numerical control sawing machine of claim 4, wherein: The clamping assembly (13) comprises three first moving rods (131), and the top of each of the three first moving rods (131) is correspondingly connected with the recess of the outer surface of the movable disc (122).

6. The numerical control sawing machine of claim 5, wherein: The bottom of each of the three first moving rods (131) is movably connected with a second moving rod (132). The connecting part of each of the three first moving rods (131) and the second moving rod (132) is movably connected with a rotating shaft (133), and the two ends of each of the three rotating shafts (133) are movably connected with the inner surface of the rotating shell (116). The bottom of each of the three second moving rods (132) is fixedly connected with a clamping block (134).

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