High-precision numerical control bending machine convenient to adjust and use

Abstract

The invention relates to the technical field of numerical control bending machines, and discloses a high-precision numerical control bending machine convenient to adjust and use, which comprises a machining table, supporting plates are fixedly mounted at four ends of the bottom of the machining table, moving plates are slidably mounted at the bottoms of the supporting plates, balls which are densely distributed are mounted at the top of the machining table in a rolling manner, and a mold is fixedly mounted on the rear side of the top of the machining table. After bending is finished, a suction cup is controlled to return to drive the plate to return to the original position, then a second air cylinder on a suction cup rod in the middle is started to stretch, the suction cup is adsorbed to the plate, a second motor is started to drive a second lead screw to rotate, a rack is controlled to be engaged with a gear rod to rotate by 180 degrees, and then the plate is bent; and finally, the process is repeated according to the previous bending operation, so that the other side of the plate is bent, and the bending accuracy of the plate is improved due to the fact that the process almost does not involve manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control bending machines, in particular to a high-precision numerical control bending machine that is easy to adjust and use. Background Art

[0002] A bending machine is a machine that can bend thin plates, mainly through the upper and lower dies that cooperate with each other to bend the plates. As a new large-scale machine, CNC bending machines are favored by many people because of their ultra-high processing accuracy and dual-machine linkage operation. CNC bending machines can use the equipped molds (general or special molds) to bend cold metal plates into workpieces of various geometric cross-sectional shapes. It is a sheet forming machine designed for cold-rolled sheet metal processing, and is widely used in sheet bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

[0003] When the CNC bending machine in the prior art performs bilateral bending on the processed plate, it usually needs to process one side at a time, that is, after bending one side of the plate, the plate is manually rotated before the other side can be bent. This conversion and bending process involves manual adjustment, making it difficult to accurately control the posture of the plate, which may lead to large errors during bending. Therefore, in order to solve the above problems, it is necessary to invent a high-precision CNC bending machine that is easy to adjust. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and provide a high-precision CNC bending machine that is easy to adjust.

[0005] The technical solution adopted by the present invention is as follows: a high-precision, easy-to-adjust CNC bending machine, comprising a processing table, support plates are fixedly installed at the four ends of the bottom of the processing table, a movable plate is slidably installed at the bottom of the support plate, closely spaced balls are rollingly installed on the top of the processing table, a mold is fixedly installed on the rear side of the top of the processing table, side plates are fixedly installed on the rear sides of the processing table, a slider is slidably installed on the inner side of the side plate, and a pressure plate arranged opposite to the mold is fixedly installed on the inner side of the slider.

[0006] A top plate fixed to the side plates is provided above the processing table, and top rail plates are fixedly installed on both sides of the bottom of the top plate, suction cup rods are slidably installed on the bottom of the two top rail plates, a suction cup rod is rotatably installed on the middle part of the bottom of the top plate, a slide plate is slidably installed on the side wall of the suction cup rod, a suction cup is fixedly connected to the bottom of the slide plate, a suction pump is fixedly installed on the side wall of the slide plate, and the suction pump is connected with the suction cup through a pipeline, a pair of cross rail plates are fixedly installed on the top of the processing table, and centering plates are slidably installed on both sides of the top of the cross rail plates, a pressure sensor is fixedly installed on the inner side of the centering plate, and a rotating wheel is rotatably installed on the inner side of the pressure sensor.

[0007] In a preferred embodiment of the invention, legs are fixedly mounted on both sides of the bottom of the support plate, and a plurality of groups of rollers are rotatably mounted on the bottom of the movable plate.

[0008] In a preferred embodiment of the invention, a protruding groove adapted to the movable plate is provided at the bottom of the support plate, an electric push rod 1 is fixedly installed in the support plate, and an extended end of the electric push rod 1 is fixedly connected to the movable plate.

[0009] In a preferred embodiment of the invention, a displacement groove adapted to the slider is provided on the inner side of the side plate, a cylinder 1 is fixedly mounted on the side plate, and an extended end of the cylinder 1 is fixedly connected to the slider.

[0010] In a preferred embodiment of the invention, a bending groove matched with the pressure plate is provided on the top of the mold, and the top of the ball and the top of the mold are located on the same horizontal plane.

[0011] In a preferred embodiment of the invention, a back plate is fixedly mounted on the rear side of the processing table, a plurality of electric push rods 2 are fixedly mounted on the front side of the back plate, and a baffle is fixedly mounted on the extended end of the electric push rods 2.

[0012] In a preferred embodiment of the invention, a No. 1 slide groove adapted to the suction cup rod is provided at the bottom of the top rail plate, a screw rod is threadedly connected to the suction cup rod, and a motor 1 fixed to the top rail plate is fixedly installed at the end of the screw rod.

[0013] In a preferred embodiment of the invention, a lifting groove adapted to the slide plate is provided in the suction cup rod, and a cylinder 2 whose extended end is fixed to the slide plate is fixedly mounted on the suction cup rod.

[0014] In a preferred invention mode, No. 2 slide grooves compatible with the centering plate are provided on both sides of the top of the cross track plate, and threaded rods with opposite external threads are respectively threadedly connected on the two centering plates. A double-headed motor is fixedly installed in the middle of the cross track plate, and the two output shafts of the double-headed motor are respectively fixedly connected to the threaded rods, and the pressure sensor is connected to the signal of the circuit control board that controls the start and stop of the double-headed motor.

[0015] In a preferred invention mode, a bracket is fixedly installed on the top left side of the top plate, and a gear rod is fixedly installed on the top of the middle suction cup rod, the gear rod is rotatably connected to the bracket through a bearing, the left side of the gear rod is meshed with a rack sliding on the bracket, the rack is threadedly connected with a screw rod 2, and the end of the screw rod 2 is fixedly connected to a motor 2 fixed to the bracket.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. In the present invention, through the above design, when it is necessary to move the device to the workshop for use, the electric push rod can be started to extend to drive the moving plate to be pushed out to the bottom of the support plate. At this time, the rollers at the bottom of the moving plate touch the ground, and the legs are raised, so that the device can be moved. When it is moved into place, the electric push rod is started to contract to drive the moving plate to move up and back into the support plate. At this time, the legs touch the ground to realize the movement of the device. In addition, since densely distributed balls are installed on the top of the processing table, and the top of the balls is on the same horizontal plane as the top of the mold, when the plate is placed on the processing table, the plate can be easily rotated and pushed to move by the rolling of the balls.

[0018] 2. In the present invention, through the above design, when the edge of the plate needs to be bent, the plate is first placed on the ball bearing on the top of the processing table, and roughly adjusted to the center, and then the double-headed motors on the two cross rails are started to drive the threaded rods on both sides to rotate, so as to control a total of four centering plates to move toward the edge of the plate, so that the four rotating wheels can clamp the plate for centering and fixed limit to keep the plate aligned and not skewed. In this process, since the pressure sensor is fixedly installed on the outer side of the rotating wheel, the pressure sensor can control the rotating wheel to move the plate When the abutment force reaches a certain value, the double-headed motor is turned off and the threaded rod is stopped from rotating to prevent the plate from being deformed due to excessive abutment force of the rotating wheel. After the four rotating wheels align and adjust the plate, the cylinders on the suction cup rods on both sides are started to extend so that the suction cups on both sides move down and fit above the plate. Then, the suction pumps on the suction cup rods on both sides are started to draw air so that the suction cups at the bottom of the suction cup rods on both sides adsorb the plate. Then, the electric push rods are started to extend or contract to control the distance at which the baffle is located at the rear side of the mold to resist the plate. Control the bending position of the edge of the plate, and finally start the motor 1 to drive the screw 1 to rotate, so as to control the suction cups at the bottom of the suction cup rods on both sides to adsorb the plate and move it to the baffle to fit it. After moving into place, start the cylinder 1 to extend and drive the pressure plate inside the slider to move down and close to the mold. At this time, the pressure plate cooperates with the mold to bend the edge of the plate. After the bending is completed, control the suction cup to return to the original position, and then control the suction pumps on the suction cup rods on both sides to close, and start the cylinder 2 at the same time to drive the suction cup to move up and away from the plate, and then start the suction cup on the middle suction cup rod Cylinder 2 extends, and according to the same principle, the suction cup at the bottom of the middle suction cup rod is adsorbed on the plate. At this time, the four wheels are controlled to move away from the plate and stop clamping. Then motor 2 is started to drive screw 2 to rotate, so as to control the rack to engage the gear rod and rotate 180°, so that the suction cup rod located in the middle of the bottom of the gear rod adsorbs the plate through the suction cup and rotates 180°. Finally, according to the previous bending operation, the above process is repeated to achieve the bending of the other side of the plate. Since this process involves almost no manual operation, the accuracy of plate bending is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the present invention from an upward angle;

[0021] Figure 3 For the present invention Figure 1 A magnified schematic diagram of part A;

[0022] Figure 4 It is a schematic diagram of the structure of the bottom of the top plate in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the top of the processing table in the present invention.

[0024] Markings in the figure: 1-processing table, 2-support plate, 3-support leg, 4-moving plate, 5-electric push rod 1, 6-ball, 7-mold, 8-side plate, 9-slider, 10-cylinder 1, 11-pressure plate, 12-back plate, 13-electric push rod 2, 14-baffle, 15-top plate, 16-top rail plate, 17-suction cup rod, 18-screw rod 1, 19-motor 1, 20-slide plate, 21-suction cup, 22-cylinder 2, 23-suction pump, 24-cross rail plate, 25-centering plate, 26-threaded rod, 27-double-head motor, 28-pressure sensor, 29-rotating wheel, 30-bracket, 31-gear rod, 32-rack, 33-screw rod 2, 34-motor 2. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0026] The following will be combined Figure 1-Figure 5 A high-precision, easy-to-adjust CNC bending machine according to an embodiment of the present invention is described in detail.

[0027] Example:

[0028] Reference Figure 1 , 23. A high-precision CNC bending machine that is easy to adjust and use, including a processing table 1, a support plate 2 is fixedly installed at the four ends of the bottom of the processing table 1, a moving plate 4 is slidably installed at the bottom of the support plate 2, legs 3 are fixedly installed on both sides of the bottom of the support plate 2, a plurality of groups of rollers are rotatably installed at the bottom of the moving plate 4, an extension groove adapted to the moving plate 4 is opened at the bottom of the support plate 2, an electric push rod 5 is fixedly installed in the support plate 2, and the extended end of the electric push rod 5 is fixedly connected to the moving plate 4, a closely distributed ball 6 is rollingly installed on the top of the processing table 1, a mold 7 is fixedly installed on the rear side of the top of the processing table 1, and both sides of the rear of the processing table 1 are fixed A side plate 8 is fixedly installed, a slider 9 is slidably installed on the inner side of the side plate 8, a shifting groove matched with the slider 9 is opened on the inner side of the side plate 8, a cylinder 10 is fixedly installed on the side plate 8, the extended end of the cylinder 10 is fixedly connected to the slider 9, a pressing plate 11 arranged opposite to the mold 7 is fixedly installed on the inner side of the slider 9, a bending groove matched with the pressing plate 11 is opened on the top of the mold 7, the top of the ball 6 and the top of the mold 7 are located on the same horizontal plane, a back plate 12 is fixedly installed on the rear side of the processing table 1, a plurality of electric push rods 13 are fixedly installed on the front side of the back plate 12, and a baffle 14 is fixedly installed on the extended end of the electric push rods 13.

[0029] Through the above design, when it is necessary to move the device to the workshop for use, the electric push rod 5 can be started to extend and drive the moving plate 4 to be pushed out to the bottom of the support plate 2. At this time, the roller at the bottom of the moving plate 4 contacts the ground, and the support leg 3 is raised, so that the device can be moved. When it is moved into place, the electric push rod 5 is started to contract to drive the moving plate 4 to move up and retract into the support plate 2. At this time, the support leg 3 contacts the ground to realize the movement of the device. In addition, since the top of the processing table 1 is rolled with densely distributed balls 6, and the top of the ball 6 is located at the same horizontal plane as the top of the mold 7, when the plate is placed on the processing table 1, the plate can be easily rotated and pushed to move by the rolling of the ball 6.

[0030] Reference Figure 1 , 24, 5, a top plate 15 fixed to the side plate 8 is arranged above the processing table 1, top rail plates 16 are fixedly installed on both sides of the bottom of the top plate 15, suction cup rods 17 are slidably installed at the bottom of the two top rail plates 16, and the suction cup rod 17 is rotatably installed at the middle of the bottom of the top plate 15. A No. 1 slide groove adapted to the suction cup rod 17 is opened at the bottom of the top rail plate 16, and a screw rod 18 is threadedly connected to the suction cup rod 17, and a screw rod 18 fixed to the top rail plate 16 is fixed at the end thereof. Motor 19, a slide plate 20 is slidably mounted on the side wall of the suction cup rod 17, a lifting groove adapted to the slide plate 20 is provided in the suction cup rod 17, a cylinder 22 whose elongated end is fixed to the slide plate 20 is fixedly mounted on the suction cup rod 17, a suction cup 21 is fixedly connected to the bottom of the slide plate 20, a suction pump 23 is fixedly mounted on the side wall of the slide plate 20, and the suction pump 23 is connected to the suction cup 21 through a pipeline, and a pair of cross rails 24 are fixedly mounted on the top of the processing table 1, and the top sides of the cross rails 24 are A centering plate 25 is slidably installed on both sides of the top of the cross track plate 24, and a No. 2 slide groove compatible with the centering plate 25 is opened on both sides of the top of the cross track plate 24. The two centering plates 25 are respectively threadedly connected with threaded rods 26 with opposite external threads. A double-headed motor 27 is fixedly installed in the middle of the cross track plate 24, and the two output shafts of the double-headed motor 27 are respectively fixedly connected with the threaded rods 26. A pressure sensor 28 is fixedly installed on the inner side of the centering plate 25, and a rotating wheel 29 is rotatably installed on the inner side of the pressure sensor 28. The pressure sensor 28 is connected to the signal of the circuit control board that controls the start and stop of the double-headed motor 27. A bracket 30 is fixedly installed on the left side of the top of the top plate 15, and a gear rod 31 is fixedly installed on the top of the middle suction cup rod 17. The gear rod 31 is rotatably connected to the bracket 30 through a bearing. The left side of the gear rod 31 is meshed with a rack 32 sliding on the bracket 30, and a screw rod 2 33 is threadedly connected to the rack 32. The end of the screw rod 2 33 is fixedly connected with a motor 2 34 fixed to the bracket 30.

[0031] Through the above design, when it is necessary to bend the edge of the plate, first place the plate on the ball bearing 6 on the top of the processing table 1, and roughly adjust it to the center, then start the double-headed motors 27 on the two cross-rail plates 24 to drive the threaded rods 26 on both sides to rotate, so as to control a total of four centering plates 25 to move toward the edge of the plate, so that the four rotating wheels 29 clamp the plate for centering and fixed limit to keep the plate aligned and not skewed. In this process, since the pressure sensor 28 is fixedly installed on the outer side of the rotating wheel 29, the pressure sensor 28 can control the contact force of the rotating wheel 29 on the plate. When the contact force reaches a certain value, the double-headed motor 27 is turned off to stop it from driving the threaded rod 26 to rotate, so as to prevent the contact force of the rotating wheel 29 from being too large and causing deformation of the plate. When the four rotating wheels 29 are moving the plate After the alignment adjustment, the cylinder 22 on the suction cup rods 17 on both sides is started to extend, so that the suction cups 21 on both sides move down and fit above the plate, and then the suction pumps 23 on the suction cup rods 17 on both sides are started to evacuate air, so that the suction cups 21 at the bottom of the suction cup rods 17 on both sides adsorb the plate, and then the electric push rod 21 is started to extend or contract to control the distance of the baffle 14 at the rear side of the mold 7 to resist the plate, so as to control the position point of the bending of the edge of the plate, and finally the motor 19 is started to drive the screw rod 18 to rotate, so as to control the suction cups 21 at the bottom of the suction cup rods 17 on both sides to adsorb the plate and move it to the baffle 14 to fit it. After moving into place, the cylinder 10 is started to extend to drive the pressure plate 11 inside the slider 9 to move down and close to the mold 7. At this time, the pressure plate 11 cooperates with the mold 7 to bend the side of the plate;

[0032] After the bending is completed, the suction cup 21 is controlled to return to drive the sheet back to its original position, and then the suction pumps 23 on the suction cup rods 17 on both sides are controlled to be closed, and the cylinder 22 is started at the same time to drive the suction cup 21 to move up and away from the sheet, and then the cylinder 22 on the middle suction cup rod 17 is started to extend. According to the same principle, the suction cup 21 at the bottom of the middle suction cup rod 17 is adsorbed on the sheet. At this time, the four rotating wheels 29 are controlled to move away from the sheet and stop clamping, and then the motor 2 34 is started to drive the screw 2 33 to rotate, so as to control the rack 32 to engage the gear rod 31 and rotate 180°, so that the suction cup rod 17 located in the middle at the bottom of the gear rod 31 adsorbs the sheet through the suction cup 21 and rotates 180°. Finally, according to the previous bending operation, the above process is repeated to achieve bending of the other side of the sheet. Since this process involves almost no manual operation, the accuracy of sheet bending is improved.

[0033] The implementation principle of the embodiment of the high-precision and easy-to-adjust CNC bending machine of the present application is as follows:

[0034] First, when it is necessary to move the device to the workshop for use, the electric push rod 5 can be started to extend and drive the moving plate 4 to be pushed out to the bottom of the support plate 2. At this time, the rollers at the bottom of the moving plate 4 touch the ground, and the legs 3 are raised, so that the device can be moved. When it is moved into place, the electric push rod 5 is started to contract to drive the moving plate 4 to move up and back into the support plate 2. At this time, the legs 3 touch the ground to realize the movement of the device. In addition, since the top of the processing table 1 is rolled with densely distributed balls 6, and the top of the balls 6 is on the same horizontal plane as the top of the mold 7, when the plate is placed on the processing table 1, the plate can be easily rotated and pushed to move by the rolling of the balls 6.

[0035] Of course, it is important that when the edge of the plate needs to be bent, the plate is first placed on the ball 6 on the top of the processing table 1, and roughly adjusted to the center, and then the double-headed motors 27 on the two cross-rail plates 24 are started to drive the threaded rods 26 on both sides to rotate, so as to control a total of four centering plates 25 to move toward the edge of the plate, so that the four rotating wheels 29 clamp the plate for centering and fixed limit to keep the plate aligned and not skewed. In this process, since the pressure sensor 28 is fixedly installed on the outer side of the rotating wheel 29, the pressure sensor 28 can control the contact force of the rotating wheel 29 on the plate. When the contact force reaches When the double-headed motor 27 reaches a certain value, it stops driving the threaded rod 26 to rotate, so as to prevent the contact force of the rotating wheel 29 from being too large and causing deformation of the plate. After the four rotating wheels 29 align and adjust the plate, the cylinder 22 on the suction cup rods 17 on both sides is started to extend, so that the suction cups 21 on both sides move down and fit above the plate, and then the suction pumps 23 on the suction cup rods 17 on both sides are started to evacuate air, so that the suction cups 21 at the bottom of the suction cup rods 17 on both sides adsorb the plate, and then the electric push rod 21 is started to extend or contract to control the distance between the baffle 14 at the rear side of the mold 7 and the plate, so as to control the edge of the plate. The bending position point is finally started, and the motor 19 is driven to rotate the screw rod 18 to control the suction cups 21 at the bottom of the suction cup rods 17 on both sides to absorb the sheet and move it to the baffle 14 for fitting. After moving to the right position, the cylinder 10 is started to extend and drive the pressure plate 11 inside the slider 9 to move down and close to the mold 7. At this time, the pressure plate 11 cooperates with the mold 7 to bend the side of the sheet. After the bending is completed, the suction cup 21 is controlled to return to drive the sheet back to its original position, and then the suction pumps 23 on the suction cup rods 17 on both sides are controlled to be closed, and at the same time, the cylinder 22 is started to drive the suction cup 21 to move up and away from the sheet, and then the middle suction cup rod 17 is started. The cylinder 22 on the upper part is extended, and according to the same principle, the suction cup 21 at the bottom of the middle suction cup rod 17 is adsorbed on the plate. At this time, the four rotating wheels 29 are controlled to move away from the plate and stop clamping, and then the motor 2 34 is started to drive the screw 2 33 to rotate, so as to control the rack 32 to engage the gear rod 31 and rotate 180°, so that the suction cup rod 17 located in the middle at the bottom of the gear rod 31 adsorbs the plate through the suction cup 21 and rotates 180°. Finally, according to the previous bending operation, the above process is repeated to achieve the bending of the other side of the plate. Since this process involves almost no manual operation, the accuracy of plate bending is improved.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-precision, easy-to-adjust CNC bending machine, comprising a processing table (1), characterized in that: The four ends of the bottom of the processing table (1) are fixedly mounted with support plates (2), the bottom of the support plate (2) is slidably mounted with a movable plate (4), the top of the processing table (1) is rollingly mounted with closely spaced balls (6), the top rear side of the processing table (1) is fixedly mounted with a mold (7), the two sides of the processing table (1) are fixedly mounted with side plates (8), the inner side of the side plates (8) is slidably mounted with a slider (9), and the inner side of the slider (9) is fixedly mounted with a pressing plate (11) arranged opposite to the mold (7); A top plate (15) fixed to the side plate (8) is arranged above the processing table (1), top rail plates (16) are fixedly installed on both sides of the bottom of the top plate (15), suction cup rods (17) are slidably installed at the bottom of the two top rail plates (16), a suction cup rod (17) is rotatably installed at the middle of the bottom of the top plate (15), a slide plate (20) is slidably installed on the side wall of the suction cup rod (17), and the bottom of the slide plate (20) is fixedly connected to the suction cup (20). 1), a suction pump (23) is fixedly installed on the side wall of the slide plate (20), and the suction pump (23) is connected to the suction cup (21) through a pipeline, a pair of cross rails (24) are fixedly installed on the top of the processing table (1), and centering plates (25) are slidably installed on both sides of the top of the cross rails (24), a pressure sensor (28) is fixedly installed on the inner side of the centering plate (25), and a rotating wheel (29) is rotatably installed on the inner side of the pressure sensor (28).

2. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: Support legs (3) are fixedly mounted on both sides of the bottom of the support plate (2), and a plurality of groups of rollers are rotatably mounted on the bottom of the movable plate (4).

3. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: The bottom of the support plate (2) is provided with a protruding groove adapted to the movable plate (4), and an electric push rod (5) is fixedly installed in the support plate (2), and the extended end of the electric push rod (5) is fixedly connected to the movable plate (4).

4. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: A displacement groove adapted to the slider (9) is provided on the inner side of the side plate (8), a cylinder 1 (10) is fixedly mounted on the side plate (8), and an extended end of the cylinder 1 (10) is fixedly connected to the slider (9).

5. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: The top of the mold (7) is provided with a bending groove matched with the pressing plate (11), and the top of the ball (6) and the top of the mold (7) are located on the same horizontal plane.

6. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: A back plate (12) is fixedly mounted on the rear side of the processing table (1), a plurality of electric push rods (13) are fixedly mounted on the front side of the back plate (12), and a baffle (14) is fixedly mounted on the extended end of each electric push rod (13).

7. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: The bottom of the top rail plate (16) is provided with a first slide groove adapted to the suction cup rod (17); a screw rod (18) is threadedly connected to the suction cup rod (17); and a motor (19) fixed to the top rail plate (16) is fixedly mounted at the end of the screw rod (18).

8. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: A lifting groove adapted to the slide plate (20) is provided in the suction cup rod (17), and a second cylinder (22) whose extended end is fixed to the slide plate (20) is fixedly mounted on the suction cup rod (17).

9. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: Both sides of the top of the cross rail plate (24) are provided with second slide grooves adapted to the centering plate (25), and threaded rods (26) with opposite external threads are respectively threadedly connected to the two centering plates (25). A double-headed motor (27) is fixedly installed in the middle of the cross rail plate (24), and two output shafts of the double-headed motor (27) are respectively fixedly connected to the threaded rods (26), and the pressure sensor (28) is connected to the circuit control board signal for controlling the start and stop of the double-headed motor (27).

10. A high-precision, easy-to-adjust CNC bending machine as claimed in claim 1, characterized in that: A bracket (30) is fixedly installed on the left side of the top of the top plate (15), and a gear rod (31) is fixedly installed on the top of the suction cup rod (17) in the middle. The gear rod (31) is rotatably connected to the bracket (30) through a bearing. The left side of the gear rod (31) is meshed with a rack (32) sliding on the bracket (30), and a screw rod (33) is threadedly connected to the rack (32). The end of the screw rod (33) is fixedly connected to a motor (34) fixed to the bracket (30).

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