High-precision numerical control four-roller plate rolling machine

Abstract

The utility model relates to the technical field of numerical control four-roller plate bending machines, and discloses a high-precision numerical control four-roller plate bending machine which comprises an assembly body framework, a lower roller structure, an upper roller structure and a numerical value measuring and calculating structure, the lower roller structure is arranged on one side of the upper end of the assembly body framework, and the upper roller structure is arranged on one side of the lower end of the assembly body framework. A numerical value measuring and calculating structure is arranged on the lower roller structure, the lower roller structure comprises a first lower roller, assembling frames, a second lower roller, a third lower roller and a first rotating seat, and the first lower roller is rotationally arranged between the assembling frames. By means of the structural design, the rolling precision of each time of machining can be guaranteed under the condition that batch plate rolling machining is guaranteed, and compared with a traditional high-precision hydraulic control system, the numerical value measuring and calculating structure is convenient to maintain and repair, and meanwhile the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled four-roller plate rolling machines, in particular to a high-precision numerically controlled four-roller plate rolling machine. Background Art

[0002] In the existing metal sheet rolling processing, in order to ensure the rolling efficiency and rolling accuracy of the metal sheets, a CNC four-roller rolling machine is usually used for the metal sheet rolling processing. Compared with the traditional non-automatic rolling machine, it has the advantages of high efficiency and high precision.

[0003] However, existing CNC four-roll plate rolling machines usually use relatively high-precision hydraulic control systems with relatively high costs to achieve high precision in rolling processing, and the thickness data of the rolled plates needs to be input in advance. When processing batches of plates, the thickness of the plates will have errors, which will affect the accuracy of the batch plate rolling processing. Therefore, technical personnel in this field provide a high-precision CNC four-roll plate rolling machine to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a high-precision CNC four-roller plate rolling machine to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-precision CNC four-roll plate rolling machine, comprising an assembly structure, a lower roller structure, an upper roller structure and a numerical measurement structure, wherein a lower roller structure is provided on one side of the upper end of the assembly structure, and a numerical measurement structure is provided on the lower roller structure, the lower roller structure comprises a first lower roller, an assembly frame, a second lower roller, a third lower roller and a first rotating seat, the first lower roller is rotatably arranged between the assembly frames, the second lower roller and the third lower roller are respectively rotatably arranged between multiple pairs of first rotating seats, the numerical measurement structure comprises a first pressure sensor, a second pressure sensor, a third pressure sensor and a laser ranging sensor, the bottom end of the assembly frame is provided with a second pressure sensor, the lower end of the first rotating seat located on the side of the second lower roller is provided with a third pressure sensor, the lower end of the first rotating seat located on the side of the third lower roller is provided with a first pressure sensor, and the upper end of the assembly frame on one side is provided with a laser ranging sensor, and the upper end of the assembly frame and the upper end of the roller body of the first lower roller are consistent in height.

[0006] Furthermore, a second optical encoder is provided on the outside of the first rotating base located on the side of the second lower roller, and a first optical encoder is provided on the outside of the first rotating base located on the side of the third lower roller. The second and first optical encoders are used to measure the rotation angles of the second and third lower rollers, facilitating and accurately determining the adjustment parameters of the second and third lower rollers.

[0007] Furthermore, the assembly structure includes a mounting frame, both sides of which are rotatably connected to connecting shafts, a pair of first connecting rods rotatably provided on one side of the shaft bodies of the connecting shafts, a pair of second connecting rods rotatably provided at positions of the shaft bodies of the connecting shafts close to the first connecting rods, one end of the first connecting rod and the second connecting rod respectively rotatably cooperate with one end of a plurality of first rotating seats, one end of the first connecting rod is fixedly connected to the measuring shaft of the second optical encoder, and one end of the second connecting rod is fixedly connected to the measuring shaft of the first optical encoder. The connection relationship between the connecting shaft, the first connecting rod, and the second connecting rod, as well as the respective connection relationships with the measuring shafts of the first and second optical encoders, facilitates the design of the above structure to ensure that the second lower roller and the third lower roller are adjusted in an arc-shaped rotation, and to ensure the measurement accuracy of the optical encoder.

[0008] Furthermore, a plurality of second rotating seats are rotatably provided on the inner sides of the frame bodies on both sides of the mounting frame, a first hydraulic rod is provided on the upper ends of the plurality of second rotating seats, the output ends of the plurality of first hydraulic rods are fixedly matched with the bottom ends of the plurality of first rotating seats, the output ends of the plurality of first hydraulic rods are fixedly connected to the first pressure sensor and the third pressure sensor respectively, a pair of bottom plates are fixedly connected to the inner sides of the frame bodies on both sides of the mounting frame, a second hydraulic rod is provided on the upper ends of the pair of bottom plates, the output ends of the plurality of second hydraulic rods are fixedly matched with the bottom end of the assembly frame, and the output ends of the plurality of second hydraulic rods are fixedly connected to the second pressure sensor. The first hydraulic rod, the second hydraulic rod, and the connection relationship with the first rotating seat, the connection relationship with the assembly frame, and the connection relationship with the second rotating seat facilitate the adjustment of the inclination angle of the second lower roller and the third lower roller by the first hydraulic rod, and the adjustment of the distance between the first lower roller and the upper roller axis by the second hydraulic rod.

[0009] Furthermore, the assembly structure also includes a frame, a control panel arranged on the frame, and safety shields arranged on both sides of the mounting frame. The upper roller structure includes an upper roller shaft, an upper roller limit frame, and a limit frame adjustment hydraulic rod. The upper roller shaft is rotatably arranged on one side of the frame near the upper end position, and an upper roller limit frame is rotatably arranged on the outer side of one end of the mounting frame near the upper end position. A limit frame adjustment hydraulic rod is rotatably arranged on the outer side of one end of the mounting frame near the lower end position. The output end of the limit frame adjustment hydraulic rod is rotatably connected to the upper roller limit frame, and the limit frame adjustment hydraulic rod is electrically connected to the control panel.

[0010] Furthermore, a stepper motor is installed on the inside of the frame at a position corresponding to the upper roller. The upper roller is driven by the stepper motor and is electrically connected to a control console. An access panel is fixedly connected to the outside of the frame. The electrical connection between the stepper motor and the control console, as well as its coordination with the upper roller, facilitates control of the stepper motor via the control console, thereby driving the upper roller to rotate. The choice of stepper motor also ensures that the material roll length can be measured as the upper roller rotates. The access panel facilitates inspection and maintenance of certain structures within the frame.

[0011] Furthermore, the numerical value calculation structure is electrically connected to the control console, and the first hydraulic rod and the second hydraulic rod are electrically connected to the control console. The electrical connection between the numerical value calculation structure and the control console facilitates feedback of the calculated numerical value to the control console, and the electrical connection between the first hydraulic rod and the second hydraulic rod and the control console facilitates control of the first hydraulic rod and the second hydraulic rod via the control console.

[0012] Compared with the existing technology, the utility model provides a high-precision CNC four-roller plate rolling machine with the following beneficial effects:

[0013] The equipment of this design uses a second pressure sensor set below the first lower roller in conjunction with a laser ranging sensor on the assembly frame to ensure that when the plate is pressed by the rising first lower roller, the laser ranging sensor can accurately measure the distance between the first lower roller and the upper roller shaft, that is, the thickness of the currently pressed plate. This structural design can ensure the rolling accuracy of each processing under batch plate rolling processing, and the design of the numerical measurement structure is more convenient for maintenance and repair than the traditional high-precision hydraulic control system, while also reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall isometric drawing of the utility model;

[0015] Figure 2 It is a partial structural sectional isometric drawing of the present invention;

[0016] Figure 3 This is the isometric drawing of the roll plate structure of the present utility model;

[0017] Figure 4 This is a bottom-up axonometric drawing of the roll plate structure of the present invention;

[0018] Figure 5 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0019] In the figure: 1. Assembly structure; 11. Frame; 12. Control panel; 13. Inspection panel; 14. Mounting frame; 15. Safety shield; 2. Lower roller structure; 201. First connecting rod; 202. Connecting shaft; 203. Second connecting rod; 204. Assembly frame; 205. First rotating seat; 206. First hydraulic rod; 207. Second rotating seat; 208. Bottom plate; 209. First lower roller; 210. Second lower roller; 211. Third lower roller; 212. Second hydraulic rod; 3. Numerical measurement structure; 31. Laser ranging sensor; 32. First optical encoder; 33. First pressure sensor; 34. Second pressure sensor; 35. Third pressure sensor; 36. Second optical encoder; 4. Upper roller structure; 41. Upper roller shaft; 42. Upper roller limit frame; 43. Limit frame adjustment hydraulic rod; 44. Stepper motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1:

[0021] See also Figures 1 to 5 A high-precision CNC four-roll plate rolling machine includes an assembly structure 1, a lower roller structure 2, an upper roller structure 4 and a numerical measurement structure 3. The lower roller structure 2 is provided on one side of the upper end of the assembly structure 1, and the numerical measurement structure 3 is provided on the lower roller structure 2. The lower roller structure 2 includes a first lower roller 209, an assembly frame 204, a second lower roller 210, a third lower roller 211 and a first rotating seat 205. The first lower roller 209 is rotatably arranged between the assembly frames 204, and the second lower roller 210 and the third lower roller 211 are respectively rotatably arranged between multiple pairs of first rotating seats 205. The numerical measurement structure Structure 3 includes a first pressure sensor 33, a second pressure sensor 34, a third pressure sensor 35 and a laser ranging sensor 31. The bottom end of the assembly frame 204 is provided with a second pressure sensor 34, the lower end of the first rotating seat 205 located on the side of the second lower roller 210 is provided with a third pressure sensor 35, the lower end of the first rotating seat 205 located on the side of the third lower roller 211 is provided with a first pressure sensor 33, the upper end of the assembly frame 204 located on one side is provided with a laser ranging sensor 31, and the upper end of the assembly frame 204 and the upper end of the roller body of the first lower roller 209 are at the same height.

[0022] Furthermore, a second optical encoder 36 is provided on the outer side of the first rotating seat 205 located on the side of the second lower roller 210, and a first optical encoder 32 is provided on the outer side of the first rotating seat 205 located on the side of the third lower roller 211; the second optical encoder 36 and the first optical encoder 32 are used to measure the rotation angles of the second lower roller 210 and the third lower roller 211, so as to conveniently and accurately obtain the adjustment parameters of the second lower roller 210 and the third lower roller 211.

[0023] Furthermore, the assembly structure 1 includes a mounting frame 14, and both sides of the mounting frame 14 are rotatably connected to connecting shafts 202, a pair of connecting shafts 202 are rotatably provided with a first connecting rod 201 on one side of the shaft body, and a pair of connecting shafts 202 are rotatably provided with a second connecting rod 203 at a position close to the first connecting rod 201. One end of the first connecting rod 201 and the second connecting rod 203 are respectively rotatably matched with one end of a plurality of first rotating seats 205, one end of the first connecting rod 201 is fixedly connected to the measuring axis of the second optical encoder 36, and one end of the second connecting rod 203 is fixedly connected to the measuring axis of the first optical encoder 32; the setting of the connecting shaft 202, the first connecting rod 201 and the second connecting rod 203 and the connection relationship with the measuring axes of the first optical encoder 32 and the second optical encoder 36 respectively facilitates the design of the above structure to ensure that the second lower roller 210 and the third lower roller 211 are rotated in an arc during adjustment, and ensures the measurement accuracy of the optical encoder.

[0024] Furthermore, a plurality of second rotating seats 207 are rotatably provided on the inner sides of the frame bodies on both sides of the mounting frame 14, and a first hydraulic rod 206 is provided on the upper ends of the plurality of second rotating seats 207. The output ends of the plurality of first hydraulic rods 206 are fixedly matched with the bottom ends of the plurality of first rotating seats 205, and the output ends of the plurality of first hydraulic rods 206 are fixedly connected to the first pressure sensor 33 and the third pressure sensor 35 respectively. A pair of bottom plates 208 are fixedly connected to the inner sides of the frame bodies on both sides of the mounting frame 14, and a second hydraulic rod 212 is provided on the upper ends of the pair of bottom plates 208. The output ends of the hydraulic rods 212 are fixedly matched with the bottom end of the assembly frame 204, and the output ends of multiple second hydraulic rods 212 are fixedly connected to the second pressure sensor 34; the setting of the first hydraulic rod 206, the second hydraulic rod 212 and the connection relationship with the first rotating seat 205 and the connection relationship with the assembly frame 204 and the connection relationship with the second rotating seat 207 facilitates the adjustment of the inclination angle of the second lower roller 210 and the third lower roller 211 through the first hydraulic rod 206, and the adjustment of the distance between the first lower roller 209 and the upper roller shaft 41 through the second hydraulic rod 212. Example 2:

[0025] Based on the above embodiment 1, please refer to Figures 1 to 5A high-precision CNC four-roll plate rolling machine, the assembly structure 1 also includes a frame 11 and a control console 12 arranged on the frame 11 and safety shields 15 arranged on both sides of the mounting frame 14. The upper roller structure 4 includes an upper roller shaft 41 and an upper roller limit frame 42 and a limit frame adjustment hydraulic rod 43. The upper roller shaft 41 is rotatably arranged on one side of the frame 11 near the upper end position, and the upper roller limit frame 42 is rotatably arranged on the outer side of one end of the mounting frame 14 near the upper end position. The limit frame adjustment hydraulic rod 43 is rotatably arranged on the outer side of one end of the mounting frame 14 near the lower end position. The output end of the limit frame adjustment hydraulic rod 43 is rotatably connected to the upper roller limit frame 42, and the limit frame adjustment hydraulic rod 43 is electrically connected to the control console 12.

[0026] Furthermore, a stepper motor 44 is provided on the inner side of the frame 11 at a position corresponding to the upper roller 41, and the upper roller 41 is driven by the stepper motor 44. The stepper motor 44 is electrically connected to the control console 12, and an inspection plate 13 is fixedly connected to the outer side of the frame 11. The electrical connection relationship between the stepper motor 44 and the control console 12 and the coordination relationship with the upper roller 41 make it convenient to control the operation of the stepper motor 44 through the control console 12, thereby driving the upper roller 41 to rotate. At the same time, the selection of the stepper motor 44 can ensure that the material rolling length is measured when the upper roller 41 rotates, and the inspection plate 13 is provided to facilitate the inspection and maintenance of some structures in the frame 11.

[0027] Furthermore, the numerical measurement structure 3 is electrically connected to the control console 12, and the first hydraulic rod 206 and the second hydraulic rod 212 are electrically connected to the control console 12; the electrical connection relationship between the numerical measurement structure 2 and the control console 12 facilitates the feedback of the measured numerical values ​​to the control console 12, and the electrical connection relationship between the first hydraulic rod 206 and the second hydraulic rod 212 and the control console 12 facilitates the control of the first hydraulic rod 206 and the second hydraulic rod 212 through the control console 12.

[0028] The working principle and use process of this utility model: When the device is actually used:

[0029] When the equipment is working, the operator sends the plate to the lower roller structure 2 and controls the lifting operation of the second hydraulic rod 212 through the control panel 12. When the first lower roller 209 rises until the plate is pressed against the upper roller shaft 41, the pressure measurement value of the second pressure sensor 34 at the output end of the second hydraulic rod 212 will reach the value set in the control panel 12. At this time, the control panel 12 will synchronously control the laser ranging sensor 31 to work and control the second hydraulic rod 212 to stop working. The distance between the first lower roller 209 and the upper roller shaft 41 measured by the laser ranging sensor 31 also represents the thickness of the currently clamped plate.

[0030] The overall design enables the equipment to avoid the impact of rolling accuracy caused by plate thickness errors during large-scale plate rolling processing, effectively improving the equipment's rolling processing accuracy.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision CNC four-roll plate rolling machine, comprising an assembly structure (1), a lower roller structure (2), an upper roller structure (4) and a numerical calculation structure (3), characterized in that: A lower roller structure (2) is provided on one side of the upper end of the assembly structure (1), and a numerical measurement structure (3) is provided on the lower roller structure (2); The lower roller structure (2) comprises a first lower roller (209), an assembly frame (204), a second lower roller (210), a third lower roller (211) and a first rotating seat (205), wherein the first lower roller (209) is rotatably arranged between the assembly frame (204), and the second lower roller (210) and the third lower roller (211) are rotatably arranged between a plurality of pairs of first rotating seats (205); The numerical measurement structure (3) includes a first pressure sensor (33), a second pressure sensor (34), a third pressure sensor (35) and a laser distance sensor (31); the bottom end of each assembly frame (204) is provided with a second pressure sensor (34); the lower end of the first rotating seat (205) located on one side of the second lower roller (210) is provided with a third pressure sensor (35); the lower end of the first rotating seat (205) located on one side of the third lower roller (211) is provided with a first pressure sensor (33); the upper end of the assembly frame (204) located on one side is provided with a laser distance sensor (31); and the upper end of the assembly frame (204) and the upper end of the roller body of the first lower roller (209) are at the same height.

2. A high-precision CNC four-roll plate rolling machine according to claim 1, characterized in that: A second optical encoder (36) is provided on the outer side of the first rotating seat (205) located on the side of the second lower roller (210), and a first optical encoder (32) is provided on the outer side of the first rotating seat (205) located on the side of the third lower roller (211).

3. The high-precision CNC four-roll plate rolling machine according to claim 2, characterized in that: The assembly structure (1) includes a mounting frame (14), both sides of the mounting frame (14) are rotatably connected to connecting shafts (202), a pair of first connecting rods (201) are rotatably provided on one side of the shaft body of the connecting shaft (202), a pair of second connecting rods (203) are rotatably provided on the shaft body of the connecting shaft (202) at a position close to the first connecting rod (201), one end of the first connecting rod (201) and the second connecting rod (203) are respectively rotatably matched with one end of a plurality of first rotating seats (205), one end of the first connecting rod (201) is fixedly connected to the measuring shaft of the second optical encoder (36), and one end of the second connecting rod (203) is fixedly connected to the measuring shaft of the first optical encoder (32).

4. The high-precision CNC four-roll plate rolling machine according to claim 3, characterized in that: A plurality of second rotating seats (207) are rotatably provided on the inner sides of the frame bodies on both sides of the mounting frame (14), and a first hydraulic rod (206) is provided on the upper ends of the plurality of second rotating seats (207). The output ends of the plurality of first hydraulic rods (206) are fixedly matched with the bottom ends of the plurality of first rotating seats (205), and the output ends of the plurality of first hydraulic rods (206) are fixedly connected to the first pressure sensor (33) and the third pressure sensor (35), respectively. A pair of bottom plates (208) are fixedly connected to the inner sides of the frame bodies on both sides of the mounting frame (14), and a second hydraulic rod (212) is provided on the upper ends of the pair of bottom plates (208). The output ends of the plurality of second hydraulic rods (212) are fixedly matched with the bottom end of the assembly frame (204), and the output ends of the plurality of second hydraulic rods (212) are fixedly connected to the second pressure sensor (34).

5. The high-precision CNC four-roll plate rolling machine according to claim 4, characterized in that: The assembly structure (1) further includes a frame (11), a control console (12) provided on the frame (11), and safety shields (15) provided on both sides of the mounting frame (14); The upper roller structure (4) includes an upper roller shaft (41), an upper roller limit frame (42), and a limit frame adjustment hydraulic rod (43); the upper roller shaft (41) is rotatably arranged on one side of the frame (11) near the upper end; the upper roller limit frame (42) is rotatably arranged on the outer side of one end of the mounting frame (14) near the upper end; the limit frame adjustment hydraulic rod (43) is rotatably arranged on the outer side of one end of the mounting frame (14) near the lower end; the output end of the limit frame adjustment hydraulic rod (43) is rotatably connected to the upper roller limit frame (42); and the limit frame adjustment hydraulic rod (43) is electrically connected to the control console (12).

6. The high-precision CNC four-roller plate rolling machine according to claim 5, characterized in that: A stepper motor (44) is provided on the inner side of the frame (11) at a position corresponding to the upper roller shaft (41), and the upper roller shaft (41) is driven by the stepper motor (44). The stepper motor (44) is electrically connected to the control console (12), and an inspection plate (13) is fixedly connected to the outer side of the frame (11).

7. The high-precision CNC four-roller plate rolling machine according to claim 5, characterized in that: The numerical calculation structure (3) is electrically connected to the control console (12), and the first hydraulic rod (206) and the second hydraulic rod (212) are electrically connected to the control console (12).

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