Positioning and calibrating mechanism of numerical control bending machine

Abstract

The invention relates to the technical field of bending machines, in particular to a numerical control bending machine positioning calibration mechanism which comprises a mounting base, a numerical control bending machine is fixedly mounted on the mounting base, a moving frame is arranged on the mounting base in a sliding fit mode, a reversing mechanism is rotatably connected to the moving frame, and a rotating seat is rotatably connected to the moving frame. An inclined end plate positioning mechanism is rotationally connected to the rotating seat, a cleaning push block is arranged on one side of the front end of the mounting base, a material receiving cover is movably connected to the other side of the front end of the mounting base in an inserted mode, the inclined end of a plate can be positioned and calibrated by arranging an adjustable positioning plate, and therefore the inclined end plate can be accurately positioned and supported in the bending process; therefore, the bending precision, the workpiece stability and the production efficiency are improved, meanwhile, errors in manual operation are reduced, and the adaptability and safety of bending operation are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of bending machines, and in particular to a positioning and calibration mechanism for a numerically controlled bending machine. Background Art

[0002] A CNC press brake (CNC press brake) is a machine controlled by a numerical control system (CNC system) and used to bend metal sheets (typically steel, stainless steel, or aluminum) into predetermined angles using a bending die. Compared to traditional mechanical press brakes, CNC press brakes offer greater precision, flexibility, and automation, enabling complex bending operations and significantly improving production efficiency. Calibration of a CNC press brake is a crucial step in ensuring accuracy, process quality, and repeatability. Calibration primarily involves adjusting and verifying various press brake parameters to ensure accurate sheet positioning during the bending process.

[0003] The document with prior art publication number CN218134502U provides a workpiece positioning mechanism for a CNC bending machine, which is achieved by loosening the first nut, then rotating the block to a horizontal position, and then locking the first screw and the pillar through the first nut. However, at this time, the height of the support block is not on the same horizontal plane as the top of the mold. It is necessary to loosen the fourth nut, rotate the block and the support block so that the side ridges of the support block away from the block are on the same horizontal plane as the top of the mold. At this time, the plate can be placed on the mold and the support block, thereby stably supporting the plate. This device can easily and quickly adjust the distance between the two support blocks and the block. After adjustment, plates of different widths can be supported, thereby completing subsequent bending operations. It has a wide range of applications, is easy to operate, and is highly practical.

[0004] The existing technology is convenient for positioning flat panels when in use, but when bending panels with oblique ends, the existing technology is not suitable for positioning the oblique ends of the panels, so it is difficult to accurately support the oblique ends. The inclination of the oblique ends of the panels may cause the panels to shift during the bending process, resulting in loss of bending accuracy or inconsistency.

[0005] In summary, the prior art lacks a technique for positioning and calibrating the oblique end of an oblique end plate. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a positioning and calibration mechanism for a CNC bending machine.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a positioning and calibration mechanism of a CNC bending machine, including a mounting base, a CNC bending machine is fixedly installed on the mounting base, a movable frame is slidingly provided on the mounting base, a reversing mechanism is rotatably connected on the movable frame, a rotating seat is rotatably provided on the movable frame, an inclined end plate positioning mechanism is rotatably provided on the rotating seat, a cleaning push block is provided on one side of the front end of the mounting base, and a material receiving cover is movably provided on the other side of the front end of the mounting base.

[0008] Preferably, a plug hole is provided on the upper surface of the front end of the mounting base, a sliding groove is provided on the upper surface of the mounting base, and a fixed rack is fixedly connected to the mounting base.

[0009] Preferably, a hydraulic rod is fixedly connected to one end of the movable frame, and the hydraulic rod is fixedly connected to the mounting base. A slider is fixedly connected to the bottom end of the movable frame, and the slider is slidably matched with the inner wall of the slide groove.

[0010] Preferably, the reversing mechanism includes a worm, which is rotatably connected to the movable frame, a toothed disc is fixedly connected to the bottom end of the worm, a plurality of transmission teeth are rotatably connected to the toothed disc, one end of the transmission tooth is fixedly connected to a tension spring, the other end of the tension spring is fixedly connected to the inner wall of the toothed disc, a toothed disc is rotatably connected to the outer side of the toothed disc, the inner wall of the toothed disc is meshed with the transmission teeth for transmission, the toothed disc is rotatably connected to the movable frame, an adjusting wheel is fixedly connected to the bottom end of the toothed disc, and the adjusting wheel is meshed with the fixed rack for transmission.

[0011] Preferably, an electric push rod A is fixedly connected to one end of the rotating seat, and the other end of the electric push rod A is rotatably connected to the movable frame through a pin shaft. A worm gear is fixedly connected to one end of the pin shaft, and the worm gear is meshed with the worm for transmission.

[0012] Preferably, the inclined end plate positioning mechanism includes an adjustable positioning plate, one end of the adjustable positioning plate is rotatably connected to the rotating seat, one side of the adjustable positioning plate is rotatably connected to a connecting rod, the other end of the connecting rod is rotatably connected to an adjustment seat, the adjustment seat is slidingly matched with the inner wall of the rotating seat, a threaded rod is threadedly connected on the adjustment seat, the threaded rod is rotatably connected to the inner wall of the rotating seat, one end of the threaded rod extends through the inner wall of the rotating seat to the outside and is fixedly connected to a motor, and the motor is fixedly connected to the rotating seat.

[0013] Preferably, the cleaning push block is arranged in sliding contact with the groove of the lower mold of the CNC bending machine, one end of the cleaning push block is fixedly connected with a sliding rod, the bottom end of the sliding rod is slidingly matched with a moving block, the bottom end of the sliding rod is fixedly connected with a spring, the other end of the spring is fixedly connected with the inner wall of the moving block, one end of the moving block is fixedly connected with an electric push rod B, the electric push rod B is fixedly connected with the mounting base, and one side of the moving block is fixedly connected with a transmission rack.

[0014] Preferably, the bottom end of the material receiving cover is fixedly connected to an insertion rod, and the insertion rod is movably plugged into the inner wall of the insertion hole. The opening of the material receiving cover is in sliding contact with one side of the lower mold of the CNC bending machine. The inner wall of the material receiving cover is rotatably connected to a brush wheel, one end of the brush wheel extends through the inner wall of the material receiving cover to the outside and is fixedly connected to a driven wheel, and the brush wheel is in sliding contact with the cleaning push block.

[0015] Preferably, a transmission wheel is rotatably connected to the outer wall of the material receiving cover, and a driving wheel is fixedly connected to one end of the transmission wheel. The driving wheel is meshed with a transmission rack for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up the oblique end plate positioning mechanism, when the oblique end of the plate needs to be bent, the adjustable positioning plate with adjustable angle can be automatically adjusted according to the angle of the oblique end of the plate, so that the adjustable positioning plate can position and calibrate the oblique end of the plate, so that the oblique end plate can be accurately positioned and supported during the bending process, thereby improving the bending accuracy, workpiece stability and production efficiency, while reducing errors in manual operation and enhancing the adaptability and safety of the bending operation;

[0018] 2. Through the reversing mechanism, while the mobile frame moves, the rotating seat can be driven to rotate through the reversing mechanism, so that the tilt direction of the oblique end plate positioning mechanism can be adjusted. When positioning the oblique end of the plate, the oblique end plate positioning mechanism can accurately adjust the tilt direction of the oblique end, which can greatly improve the bending accuracy, operation convenience and production efficiency. At the same time, it reduces manual operation errors, ensures high consistency of bending quality, and improves the adaptability of the equipment and the stability of the workpiece.

[0019] 3. By setting up the automatic cleaning system of cleaning push block, material receiving cover and brush wheel rotation, it can not only improve the cleaning efficiency and bending quality of the mold, but also reduce the labor intensity of the operator, extend the service life of the mold and equipment, and maintain the continuity and stability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a positioning and calibration mechanism for a CNC bending machine according to the present invention;

[0021] Figure 2 This is a partial structural diagram of a positioning and calibration mechanism for a CNC bending machine according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the mounting base and other parts of the positioning and calibration mechanism of a CNC bending machine according to the present invention;

[0023] Figure 4 This is a schematic diagram of the expanded structure of a reversing mechanism of a positioning and calibration mechanism of a CNC bending machine according to the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a rotating seat and other parts of a positioning and calibration mechanism of a CNC bending machine according to the present invention;

[0025] Figure 6 This is a structural schematic diagram of an oblique end plate positioning mechanism of a positioning and calibration mechanism of a CNC bending machine according to the present invention;

[0026] Figure 7 This is a partial cross-sectional schematic diagram of a cleaning push block structure of a positioning and calibration mechanism of a CNC bending machine according to the present invention;

[0027] Figure 8 The figure is a partial cross-sectional schematic diagram of a material receiving cover structure of a positioning and calibration mechanism of a CNC bending machine according to the present invention.

[0028] The following are marked in the figure: 1. Mounting base; 2. CNC bending machine; 3. Moving frame; 4. Reversing mechanism; 5. Rotating seat; 6. Bevel end plate positioning mechanism; 7. Cleaning push block; 8. Material receiving cover; 101. Plug hole; 102. Slide; 103. Fixed rack; 301. Hydraulic rod; 302. Slider; 401. Worm; 402. Tooth plate; 403. Transmission gear; 404. Tension spring; 405. Tooth plate; 406. 6. Adjusting wheel; 501. Electric push rod A; 502. Worm gear; 601. Adjustable positioning plate; 602. Connecting rod; 603. Adjusting seat; 604. Threaded rod; 605. Motor; 701. Sliding rod; 702. Moving block; 703. Spring; 704. Electric push rod B; 705. Transmission rack; 801. Insert rod; 802. Brush wheel; 803. Driven wheel; 804. Transmission wheel; 805. Driving wheel. DETAILED DESCRIPTION

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0030] like Figures 1-8The shown positioning and calibration mechanism of a CNC bending machine includes a mounting base 1, a CNC bending machine 2 is fixedly installed on the mounting base 1, a movable frame 3 is slidingly provided on the mounting base 1, a reversing mechanism 4 is rotatably connected to the movable frame 3, a rotating base 5 is rotatably provided on the movable frame 3, an oblique end plate positioning mechanism 6 is rotatably provided on the rotating base 5, a cleaning push block 7 is provided on one side of the front end of the mounting base 1, and a material receiving cover 8 is movably plugged into the other side of the front end of the mounting base 1.

[0031] like Figure 3 As shown, a plug hole 101 is provided on the upper surface of the front end of the mounting base 1 , a slide groove 102 is provided on the upper surface of the mounting base 1 , and a fixed rack 103 is fixedly connected to the mounting base 1 .

[0032] like Figure 3 As shown, a hydraulic rod 301 is fixedly connected to one end of the mobile frame 3, and the hydraulic rod 301 is fixedly connected to the mounting base 1. A slider 302 is fixedly connected to the bottom end of the mobile frame 3, and the slider 302 is slidably matched with the inner wall of the slide groove 102.

[0033] like Figure 4 As shown, the reversing mechanism 4 includes a worm 401, which is rotatably connected to the movable frame 3. A toothed disc 402 is fixedly connected to the bottom end of the worm 401. A plurality of transmission teeth 403 are rotatably connected to the toothed disc 402. A tension spring 404 is fixedly connected to one end of the transmission teeth 403. The other end of the tension spring 404 is fixedly connected to the inner wall of the toothed disc 402. A toothed disc 405 is rotatably connected to the outer side of the toothed disc 402. The inner wall of the toothed disc 405 meshes with the transmission teeth 403 for transmission. The toothed disc 405 is rotatably connected to the movable frame 3. An adjusting wheel 406 is fixedly connected to the bottom end of the toothed disc 405. The adjusting wheel 406 meshes with the fixed rack 103 for transmission. The tension spring 404 realizes unidirectional transmission of the transmission teeth 403. The hydraulic rod 301 is used to drive the connected mobile frame 3 to move. At this time, the adjusting wheel 406 will engage with the fixed rack 103, thereby driving the toothed plate 405 connected to the adjusting wheel 406 to rotate. At this time, the toothed plate 405 will drive the toothed plate 402 connected to the transmission gear 403 to rotate through the inner wall, so that the toothed plate 402 can drive the connected worm 401 to rotate, and the worm 401 can drive the rotating base 5 connected to the worm wheel 502 to rotate.

[0034] like Figure 5 As shown, one end of the rotating seat 5 is fixedly connected to an electric push rod A501, and the other end of the electric push rod A501 is rotatably connected to the moving frame 3 through a pin shaft. One end of the pin shaft is fixedly connected to a worm gear 502, and the worm gear 502 is meshed with the worm 401 for transmission.

[0035] like Figure 6As shown, the oblique end plate positioning mechanism 6 includes an adjustable positioning plate 601, one end of which is rotatably connected to the rotating seat 5, a connecting rod 602 is rotatably connected to one side of the adjustable positioning plate 601, and an adjustment seat 603 is rotatably connected to the other end of the connecting rod 602. The adjustment seat 603 is slidably matched with the inner wall of the rotating seat 5, and a threaded rod 604 is threadedly connected to the adjustment seat 603. The threaded rod 604 is rotatably connected to the inner wall of the rotating seat 5, and one end of the threaded rod 604 passes through the inner wall of the rotating seat 5 and extends to the outside and is fixedly connected to a motor 605, which is fixedly connected to the rotating seat 5. The motor 605 drives the connected threaded rod 604 to rotate, so that the threaded rod 604 can drive the adjustment seat 603 to move, so that the adjustment seat 603 can drive the adjustable positioning plate 601 connected to the connecting rod 602 to adjust the angle.

[0036] By setting up the oblique end plate positioning mechanism 6, when the oblique end of the plate needs to be bent, the adjustable positioning plate 601 with adjustable angle can be automatically adjusted according to the angle of the oblique end of the plate, so that the adjustable positioning plate 601 can position and calibrate the oblique end of the plate, so that the oblique end plate can be accurately positioned and supported during the bending process, thereby improving the bending accuracy, workpiece stability and production efficiency, while reducing errors in manual operation and enhancing the adaptability and safety of the bending operation.

[0037] like Figure 7 As shown, the cleaning push block 7 is arranged in sliding contact with the lower mold groove of the CNC bending machine 2. One end of the cleaning push block 7 is fixedly connected to a sliding rod 701, and the bottom end of the sliding rod 701 is slidingly matched with a moving block 702. The bottom end of the sliding rod 701 is fixedly connected to a spring 703, and the other end of the spring 703 is fixedly connected to the inner wall of the moving block 702. One end of the moving block 702 is fixedly connected to an electric push rod B704, and the electric push rod B704 is fixedly connected to the mounting base 1. A transmission rack 705 is fixedly connected to one side of the moving block 702. The spring 703 enables the cleaning push block 7 to be tightly attached to the lower mold groove of the CNC bending machine 2. The electric push rod B704 is used to drive the moving block 702 to move. At this time, the moving block 702 will drive the cleaning push block 7 connected to the sliding rod 701 to contact the lower mold groove of the CNC bending machine 2.

[0038] like Figure 8 As shown, the bottom end of the material receiving cover 8 is fixedly connected with an insertion rod 801, and the insertion rod 801 is movably connected to the inner wall of the insertion hole 101. The opening of the material receiving cover 8 is in sliding contact with one side of the lower mold of the CNC bending machine 2. The inner wall of the material receiving cover 8 is rotatably connected with a brush wheel 802. One end of the brush wheel 802 passes through the inner wall of the material receiving cover 8 and extends to the outside and is fixedly connected with a driven wheel 803. The brush wheel 802 is in sliding contact with the cleaning push block 7.

[0039] A transmission wheel 804 is rotatably connected to the outer wall of the receiving cover 8. A driving wheel 805 is fixedly connected to one end of the driving wheel 804. The driving wheel 805 is meshed with the transmission rack 705. When the cleaning push block 7 moves into the receiving cover 8, the transmission rack 705 on the moving block 702 drives the driving wheel 805 to rotate, so that the driving wheel 805 can drive the transmission wheel 804 to rotate, and the transmission wheel 804 can drive the brush wheel 802 connected to the driven wheel 803 to rotate.

[0040] Working principle: When the oblique end plate needs to be bent, the oblique end plate positioning mechanism 6 is first adjusted according to the inclination direction of the oblique end of the plate, and the hydraulic rod 301 is used to drive the connected movable frame 3 to move. At this time, the adjusting wheel 406 will engage with the fixed rack 103, thereby driving the toothed disc 405 connected to the adjusting wheel 406 to rotate. At this time, the toothed disc 405 will drive the toothed disc 402 connected to the transmission gear 403 to rotate through the inner wall, so that the toothed disc 402 can drive the connected worm 401 to rotate, so that the worm 401 can drive the rotating seat 5 connected to the worm wheel 502 to rotate 180 degrees.

[0041] Then, according to the angle of the oblique end of the plate, the equipment drives the connected threaded rod 604 to rotate through the motor 605, so that the threaded rod 604 can drive the adjustment seat 603 to move, so that the adjustment seat 603 can drive the adjustable positioning plate 601 connected to the connecting rod 602 to adjust the angle, and then use the electric push rod A501 to drive the rotating seat 5 to move, so that the adjustable positioning plate 601 moves to the appropriate position, and then the plate is placed on the CNC bending machine 2, and its oblique end is brought into contact with the adjustable positioning plate 601 to achieve the positioning of the plate;

[0042] Then, after the CNC bending machine 2 bends the plate, the plate is removed, and then the electric push rod B704 is used to drive the moving block 702 to move. At this time, the moving block 702 will drive the cleaning push block 7 connected to the sliding rod 701 to contact the lower mold groove of the CNC bending machine 2, and then when the cleaning push block 7 moves toward the material receiving cover 8, the inner wall of the lower mold groove of the CNC bending machine 2 can be cleaned. Then, when the cleaning push block 7 moves into the material receiving cover 8, the transmission rack 705 on the moving block 702 will drive the active wheel 805 to rotate, so that the active wheel 805 can drive the transmission wheel 804 to rotate, so that the transmission wheel 804 can drive the brush wheel 802 connected to the driven wheel 803 to rotate, and brush off the particles attached to the cleaning push block 7 to ensure that it will not fall into the lower mold groove of the CNC bending machine 2 when it is reset.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and calibration mechanism for a CNC bending machine, comprising a mounting base (1), characterized in that: A CNC bending machine (2) is fixedly mounted on the mounting base (1), a movable frame (3) is slidably provided on the mounting base (1), a reversing mechanism (4) is rotatably connected to the movable frame (3), a rotating seat (5) is rotatably provided on the movable frame (3), an oblique end plate positioning mechanism (6) is rotatably provided on the rotating seat (5), a cleaning push block (7) is provided on one side of the front end of the mounting base (1), and a material receiving cover (8) is movably provided on the other side of the front end of the mounting base (1).

2. A positioning and calibration mechanism for a CNC bending machine according to claim 1, characterized in that: The front upper surface of the mounting base (1) is provided with a plug hole (101), the upper surface of the mounting base (1) is provided with a slide groove (102), and a fixed rack (103) is fixedly connected to the mounting base (1).

3. The positioning and calibration mechanism for a CNC bending machine according to claim 2, characterized in that: One end of the mobile frame (3) is fixedly connected to a hydraulic rod (301), the hydraulic rod (301) is fixedly connected to the mounting base (1), and the bottom end of the mobile frame (3) is fixedly connected to a slider (302), the slider (302) is slidably matched with the inner wall of the slide groove (102).

4. The positioning and calibration mechanism for a CNC bending machine according to claim 1, characterized in that: The reversing mechanism (4) comprises a worm (401), the worm (401) being rotatably connected to the movable frame (3), a toothed disc (402) being fixedly connected to the bottom end of the worm (401), a plurality of transmission teeth (403) being rotatably connected to the toothed disc (402), one end of the transmission teeth (403) being fixedly connected to a tension spring (404), the other end of the tension spring (404) being fixedly connected to the inner wall of the toothed disc (402), a toothed disc (405) being rotatably connected to the outer side of the toothed disc (402), the inner wall of the toothed disc (405) being meshed with the transmission teeth (403), the toothed disc (405) being rotatably connected to the movable frame (3), an adjusting wheel (406) being fixedly connected to the bottom end of the toothed disc (405), the adjusting wheel (406) being meshed with the fixed rack (103) for transmission.

5. The positioning and calibration mechanism for a CNC bending machine according to claim 4, characterized in that: One end of the rotating seat (5) is fixedly connected to an electric push rod A (501), and the other end of the electric push rod A (501) is rotatably connected to the movable frame (3) via a pin shaft. One end of the pin shaft is fixedly connected to a worm gear (502), and the worm gear (502) is meshed with the worm (401) for transmission.

6. The positioning and calibration mechanism for a CNC bending machine according to claim 1, characterized in that: The oblique end plate positioning mechanism (6) comprises an adjustable positioning plate (601), one end of the adjustable positioning plate (601) is rotatably connected to the rotating seat (5), one side of the adjustable positioning plate (601) is rotatably connected to a connecting rod (602), the other end of the connecting rod (602) is rotatably connected to an adjustment seat (603), the adjustment seat (603) is slidably matched with the inner wall of the rotating seat (5), a threaded rod (604) is threadedly connected to the adjusting seat (603), the threaded rod (604) is rotatably connected to the inner wall of the rotating seat (5), one end of the threaded rod (604) passes through the inner wall of the rotating seat (5) and extends to the outside and is fixedly connected to a motor (605), and the motor (605) is fixedly connected to the rotating seat (5).

7. The positioning and calibration mechanism for a CNC bending machine according to claim 2, characterized in that: The cleaning push block (7) is arranged in sliding contact with the lower mold groove of the CNC bending machine (2); one end of the cleaning push block (7) is fixedly connected with a sliding rod (701); the bottom end of the sliding rod (701) is slidably matched with a moving block (702); the bottom end of the sliding rod (701) is fixedly connected with a spring (703); the other end of the spring (703) is fixedly connected with the inner wall of the moving block (702); one end of the moving block (702) is fixedly connected with an electric push rod B (704); the electric push rod B (704) is fixedly connected with the mounting base (1); and one side of the moving block (702) is fixedly connected with a transmission rack (705).

8. The positioning and calibration mechanism for a CNC bending machine according to claim 7, characterized in that: The bottom end of the material receiving cover (8) is fixedly connected with an insertion rod (801), and the insertion rod (801) is movably connected to the inner wall of the insertion hole (101). The opening of the material receiving cover (8) is in sliding contact with one side of the lower mold of the CNC bending machine (2). The inner wall of the material receiving cover (8) is rotatably connected with a brush wheel (802), one end of the brush wheel (802) passes through the inner wall of the material receiving cover (8) and extends to the outside and is fixedly connected with a driven wheel (803), and the brush wheel (802) is in sliding contact with the cleaning push block (7).

9. A positioning and calibration mechanism for a CNC bending machine according to claim 8, characterized in that: The outer wall of the receiving cover (8) is rotatably connected to a transmission wheel (804), one end of the transmission wheel (804) is fixedly connected to a driving wheel (805), and the driving wheel (805) is meshed with the transmission rack (705) for transmission.

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