A precision shearing device for thick plate factories

Abstract

This utility model discloses a precision shearing device for thick plate factories, including a worktable with a baffle slidably mounted on top of the worktable, and laser rangefinders fixedly connected to both ends of the baffle; an adjustment component and a servo motor; the adjustment component is fixedly connected to the upper surface of the worktable, the left and right moving ends of the adjustment component are connected to the servo motor, and the output end of the servo motor is fixedly connected to the motor spindle, with a saw blade fixedly connected to the outer wall of the motor spindle; and a positioning component, including a guide frame, with a guide plate slidably connected to the guide frame, and a positioning plate rotatably connected to the guide plate through ball bearings, and the positioning plate is fixedly connected to the motor spindle by bolts; and a rangefinder plate is fixedly connected to both ends of the guide frame. This utility model, in conjunction with the laser rangefinder, can more accurately determine the shearing length of thick plates, avoiding measurement deviations caused by saw blades of different thicknesses.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet metal shearing equipment, and in particular to a precision shearing device for thick sheet metal plants. Background Technology

[0002] Heavy plates, as a distinctive type of industrial material, are known for their large size, excellent strength and toughness. Their production process is meticulous, encompassing multiple steps such as rolling, heat treatment and grinding, ensuring excellent product quality. Heavy plates not only possess high strength and excellent toughness, but also exhibit good machinability and corrosion resistance, making them shine in many industrial fields. During their production and processing, they also need to be sheared to obtain heavy plates of suitable dimensions.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN216263791U) discloses an automatic control device for precision shearing in a wide and thick plate factory. The device includes a processing table, a baffle on one side of the top of the processing table, laser rangefinders at both ends of the baffle, and grooves at both ends of the bottom of the baffle. An I-shaped plate is located at the bottom of the grooves, a distance measuring screw in the middle of the I-shaped plate, a distance measuring motor at one end of the distance measuring screw, and limit rods at both ends of the I-shaped plate. An adjustment frame is located at one end of the processing table, with distance measuring plates at both ends of the bottom side of the adjustment frame near the baffle. The laser rangefinders measure the distance between the distance measuring plates. A control device controls the distance measuring motor to drive the distance measuring screw to rotate, causing the position of the I-shaped plate to change, thus moving the baffle along the grooves and adjusting the baffle. Real-time monitoring is achieved using laser rangefinders on both sides of the baffle to reduce errors and ensure the uniformity of the length of the wide and thick plate after shearing.

[0004] Although the aforementioned patent achieves precise control over the cutting length of wide and thick plates through the cooperation of a laser rangefinder and a measuring plate, its cutting accuracy is affected by the thickness of the saw blade. It can only process with a saw blade of a single thickness. However, due to the different specifications of wide and thick plates, saw blades of different thicknesses need to be used for processing. When saw blades of different thicknesses are installed, the aforementioned measuring mechanism will cause the width of the groove to change due to the error in the thickness of the saw blade, which in turn reduces its measurement accuracy and makes it impossible to achieve precise cutting.

[0005] Therefore, this utility model provides a precision shearing device for thick plate factories to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a precision shearing device for thick plate factories, addressing the problems mentioned in the background art.

[0007] The specific solution of this utility model is as follows: a precision shearing device for a wide and thick plate factory, including a worktable, a baffle slidably disposed above the worktable, and laser rangefinders fixedly connected to both ends of the baffle; an adjustment component and a servo motor, the adjustment component being fixedly connected to the upper surface of the worktable, the left and right moving ends of the adjustment component being connected to the servo motor, and the output end of the servo motor being fixedly connected to the motor spindle, the outer wall of the motor spindle being fixedly connected to a saw blade; a positioning component, the positioning component including a guide frame, a guide plate slidably connected to the inside of the guide frame, a positioning plate being rotatably connected to the inside of the guide plate through ball bearings, and the positioning plate being fixedly connected to the motor spindle through bolts, and a rangefinder plate being fixedly connected to both ends of the guide frame, the rangefinder plate corresponding to the laser rangefinder.

[0008] Furthermore, the workbench of this utility model has a guide groove on its surface that is adapted to the left and right sliding of the baffle, and the outer wall of the baffle located below the workbench is fixedly connected to the lifting end of the first cylinder, and the housing of the first cylinder is fixedly connected to the lower surface of the workbench by a bracket.

[0009] Furthermore, the adjustment component of this utility model includes two columns, with a horizontal plate fixedly connected to the top of the two columns. A second cylinder is fixedly connected to the upper surface of the horizontal plate. A lead screw transmission mechanism is fixedly connected to the lifting end of the second cylinder, and the lead screw transmission mechanism is slidably disposed between the two columns. A traction rod is connected to the driving end of the lead screw transmission mechanism, and a positioning frame is fixedly connected to the bottom of the traction rod.

[0010] Furthermore, in this utility model, the positioning frame is the left and right displacement end of the adjustment component, and the positioning frame is fixedly connected to the servo motor flange by bolts. A first protective cover is fixedly connected to the outer wall of the positioning frame, and a second protective cover is inserted into the inside of the first protective cover. The second protective cover is fixedly connected to the outer wall of the guide plate.

[0011] Furthermore, in this utility model, both ends of the guide frame are fitted with first sleeves, and the rear side of the first sleeve is fixedly connected to a slide rail. The column is provided with an installation groove corresponding to the slide rail. The side of the measuring plate near the laser rangefinder and the side of the positioning plate near the saw blade are on the same horizontal plane.

[0012] Furthermore, in this utility model, two connecting rods are fixedly connected to the top of the guide frame, and a second sleeve is sleeved on the top bent end of the connecting rod, and the second sleeve is fixedly connected to the outer wall of the housing of the lead screw transmission mechanism.

[0013] This utility model has the following beneficial effects:

[0014] (1) By setting the fixed-point component, the device can make the starting position of the measuring plate align with the saw blade of different thickness when changing saw blades of different thicknesses, ensuring that the measuring plate is on the surface of the saw blade groove. In combination with the setting of the laser rangefinder, the cutting length of the wide and thick plate can be determined more accurately, avoiding the deviation of the measurement caused by saw blades of different thicknesses.

[0015] (2) By setting the fixed-point component, the guide frame provides auxiliary positioning for the end of the motor spindle, so that the positioning plate, ball bearing and guide plate at the end of the motor spindle can slide left and right inside the guide frame, thereby improving the stability of the motor spindle rotation, reducing its jump, and thus improving its cutting accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the servo motor axis of this utility model;

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the exploded structure of the fixed-point component in this utility model;

[0020] Figure 5 This is a schematic diagram of the installation state of the fixed-point component in this utility model;

[0021] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Workbench; 11. Baffle; 12. Laser rangefinder; 13. First cylinder; 2. Adjustment assembly; 21. Column; 22. Horizontal plate; 23. Second cylinder; 24. Screw drive mechanism; 25. Traction rod; 26. Positioning frame; 3. Servo motor; 31. Motor spindle; 32. Saw blade; 4. First protective cover; 5. Second protective cover; 6. Point positioning assembly; 61. Guide frame; 62. Connecting rod; 63. First sleeve; 64. Second sleeve; 65. Slide rail; 66. Guide plate; 67. Ball bearing; 68. Positioning plate; 69. Rangefinder plate. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] See Figures 1-6 This utility model provides a precision shearing device for a wide and thick plate factory, including a worktable 1, a baffle 11 slidably disposed above the worktable 1, and laser rangefinders 12 fixedly connected to both ends of the baffle 11; an adjustment component 2 and a servo motor 3, the adjustment component 2 being fixedly connected to the upper surface of the worktable 1, the left and right moving ends of the adjustment component 2 being connected to the servo motor 3, and the output end of the servo motor 3 being fixedly connected to a motor spindle 31, the outer wall of the motor spindle 31 being fixedly connected to a saw blade 32; and a positioning component 6, the positioning component 6 including a guide frame 61, the interior of the guide frame 61 being slidably connected to the left and right... A guide plate 66 is attached, and a positioning plate 68 is rotatably connected inside the guide plate 66 via a ball bearing 67. The positioning plate 68 is fixedly connected to the motor spindle 31 by bolts. Both ends of the guide frame 61 are fixedly connected to measuring plates 69, and the measuring plates 69 correspond to the laser rangefinder 12. By setting the positioning component 6, when installing and fixing saw blades 32 of different thicknesses, the position of the measuring plate 69 changes with the change of the thickness of the saw blade 32 to change the starting position of the measurement, thereby avoiding measurement deviation caused by the thickness of the saw blade 32 on the cutting length of the wide and thick plate.

[0026] Furthermore, the workbench 1 has a guide groove on its surface that is adapted to allow the baffle 11 to slide left and right. The baffle 11 is fixedly connected to the lifting end of the first cylinder 13 on one side of its outer wall below the workbench 1. The housing of the first cylinder 13 is fixedly connected to the lower surface of the workbench 1 through a bracket. The first cylinder 13 is activated to drive the baffle 11 to move. The baffle 11 can be used to abut and limit the end of the thick plate. At the same time, with the laser rangefinders 12 on both sides, the cutting length of the thick plate can be determined.

[0027] Furthermore, the adjustment assembly 2 includes two columns 21, with a horizontal plate 22 fixedly connected to the top of each column 21. A second cylinder 23 is fixedly connected to the upper surface of the horizontal plate 22, and a lead screw transmission mechanism 24 is fixedly connected to the lifting end of the second cylinder 23. The lead screw transmission mechanism 24 is slidably disposed between the two columns 21, and a traction rod 25 is connected to the driving end of the lead screw transmission mechanism 24. A positioning frame 26 is fixedly connected to the bottom of the traction rod 25. Through this structure, the servo motor 3 can be moved up and down and left and right. Thus, when the servo motor 3 is running, the saw blade can be adjusted up and down. The saw blade 32 contacts the thick plate, and under the high-speed rotation of the saw blade 32, the thick plate is cut. At the same time, the servo motor 3 is controlled to move left and right. The cutting control of the thick plate is achieved by the displacement of the saw blade 32. The lead screw transmission mechanism 24 mainly consists of three parts: motor, lead screw and nut pair. The motor drives the lead screw to rotate, which drives the nut pair to move left and right. The nut pair is fixedly connected to the traction rod 25, which moves left and right. At the same time, the traction rod 25 is limited to the housing of the lead screw transmission mechanism 24 by sliding connection, which ensures the stability of the left and right drive of the lead screw transmission mechanism 24.

[0028] Furthermore, the positioning frame 26 is the left and right displacement end of the adjustment component 2, and the positioning frame 26 is fixedly connected to the flange of the servo motor 3 by bolts. The outer wall of the positioning frame 26 is fixedly connected to the first protective cover 4, and the inside of the first protective cover 4 is inserted into the second protective cover 5. The second protective cover 5 is fixedly connected to the outer wall of the guide plate 66. Through the setting of the first protective cover 4 and the second protective cover 5, the saw blade 32 can be covered and wrapped, thereby improving the cutting safety of the device and reducing the risk of saw blade 32 breaking.

[0029] Furthermore, both ends of the guide frame 61 are fitted with first sleeves 63, and the rear side of the first sleeves 63 is fixedly connected to a slide rail 65. The column 21 has an installation groove corresponding to the slide rail 65. The side of the measuring plate 69 near the laser rangefinder 12 and the side of the positioning plate 68 near the saw blade 32 are on the same horizontal plane. The slide rail 65 mainly consists of a guide rail and a slider. The guide rail is fixedly connected inside the installation groove, and the slider is fixedly connected to the first sleeve 63. It is used for auxiliary guidance and limiting of the vertical displacement of the guide frame 61 and the first sleeve 63. Two connecting rods 62 are fixedly connected to the top of the guide frame 61. The top bent end of the connecting rod 62 is fitted with... There is a second sleeve 64, which is fixedly connected to the outer wall of the housing of the lead screw transmission mechanism 24. Through the connection of the connecting rod 62 and the second sleeve 64, the lead screw transmission mechanism 24 moves up and down. Through the connection of the connecting rod 62 and the second sleeve 64, the guide frame 61 moves up and down, which ensures that the guide frame 61 moves synchronously with the up and down movement of the servo motor 3, ensuring the stability of the motor spindle 31. The sleeve connection between the guide frame 61 and the first sleeve 63, as well as the sleeve connection between the connecting rod 62 and the first sleeve 63, allows the positioning plate 68 to be pulled forward after disassembly, which facilitates the disassembly and replacement of the saw blade 32.

[0030] Working principle: First, select a saw blade 32 of appropriate specifications for installation. Saw blade 32 is fitted onto the outside of motor spindle 31. Then, bolts are used to pass through the positioning plate 68 and saw blade 32 to achieve a tight installation of saw blade 32. After the saw blade 32 is installed and fixed, the position of the measuring plate 69 can be adjusted accordingly, so that the measuring plate 69 and the cutting surface of the saw blade 32 are on the same horizontal plane. Then, by adjusting the position of the baffle 11, with the cooperation of the laser rangefinder 12 and the measuring plate 69, the moving distance of the baffle 11 can be precisely adjusted. When shearing thick plates, the end of the thick plate is brought into contact with the baffle 11 for cutting, avoiding positioning errors caused by saw blades 32 of different thicknesses.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A precise shearing device for a wide and heavy plate mill, characterized by: The system includes a worktable with a baffle slidably mounted on its top, both ends of which are fixedly connected to laser rangefinders; an adjustment assembly and a servo motor, the adjustment assembly being fixedly connected to the upper surface of the worktable, the left and right moving ends of the adjustment assembly being connected to a servo motor, the output end of the servo motor being fixedly connected to a motor spindle, and a saw blade being fixedly connected to the outer wall of the motor spindle; and a positioning assembly, including a guide frame, the interior of which a guide disc is slidably connected to the left and right, the interior of which a positioning disc is rotatably connected to the guide disc via ball bearings, and the positioning disc being fixedly connected to the motor spindle via bolts; and both ends of the guide frame being fixedly connected to rangefinder plates, which correspond to the laser rangefinders.

2. A precise cutting device for a wide and heavy plate mill according to claim 1, characterized in that: The workbench has a guide groove on its surface that allows the baffle to slide left and right. The baffle is fixedly connected to the lifting end of the first cylinder on the outer wall of one side below the workbench. The housing of the first cylinder is fixedly connected to the lower surface of the workbench by a bracket.

3. The precise shearing device for a wide and heavy plate mill according to claim 1, wherein: The adjustment assembly includes two columns, with a horizontal plate fixedly connected to the top of each column. A second cylinder is fixedly connected to the upper surface of the horizontal plate. A lead screw transmission mechanism is fixedly connected to the lifting end of the second cylinder, and the lead screw transmission mechanism is slidably disposed between the two columns. A traction rod is connected to the driving end of the lead screw transmission mechanism, and a positioning frame is fixedly connected to the bottom of the traction rod.

4. A precise shearing device for a wide and heavy plate mill according to claim 3, wherein: The positioning frame is the left and right displacement end of the adjustment component, and the positioning frame is fixedly connected to the servo motor flange by bolts. A first protective cover is fixedly connected to the outer wall of the positioning frame, and a second protective cover is inserted into the inside of the first protective cover. The second protective cover is fixedly connected to the outer wall of the guide plate.

5. The precise shearing device for a wide and heavy plate mill according to claim 3, wherein: Both ends of the guide frame are fitted with first sleeves, and the rear side of the first sleeve is fixedly connected to a slide rail. The column is provided with an installation groove corresponding to the slide rail. The side of the measuring plate near the laser rangefinder is on the same horizontal plane as the side of the positioning plate near the saw blade.

6. The precise shearing device for a wide and heavy plate mill according to claim 3, wherein: Two connecting rods are fixedly connected to the top of the guide frame. The top bent end of the connecting rod is fitted with a second sleeve, and the second sleeve is fixedly connected to the outer wall of the housing of the lead screw transmission mechanism.

Images