Compensation mechanism of numerical control hydraulic plate bending machine

Abstract

The utility model discloses a numerical control hydraulic plate bending machine compensation mechanism which comprises an installation box installed on the outer side wall of a numerical control hydraulic machine body, a rotating rod, a spiral groove, a matching head, a butt joint, a boss and an extrusion boss are arranged in the installation box, and a semicircular head is extruded when an arc-shaped moving plate moves by rotating the rotating rod. The micro motor drives the butt joint to enable the lead screw to rotate, the boss is extruded to move and jack up the compensation plate, and the compensation plates at different positions can be adjusted without moving the position by a user. The moving distance of a user can be reduced, meanwhile, the pushing mechanism is arranged and comprises a four-corner ratchet wheel, a square head, a pushing plate, a pushing head and an elastic clamping plate, the pushing head can be pushed through the pushing plate, the four-corner ratchet wheel is intermittently pushed, the four-corner ratchet wheel intermittently rotates by 90 degrees under the cooperation of the elastic clamping plate, and then intermittent rotation of the rotating rod is achieved; and a user can conveniently determine the group of the adjusted compensation plate.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a compensation mechanism for a numerically controlled hydraulic plate bending machine. Background Art

[0002] At present, the production and processing of sheet materials are becoming more and more mature. Sheets are needed in many production and manufacturing processes. In the production process of sheet materials, not only the outer surface of the sheet materials needs to be processed, but also the shape and bending degree of the sheet materials need to be processed. When bending, the methods used are not the same. Generally, the most commonly used is the hydraulic bending device. Two sets of hydraulic cylinders are provided on both sides of the hydraulic bending device. The plate is placed on the device platform, and the hydraulic cylinder directly drives the vertical plate to descend to bend the plate.

[0003] However, in the actual processing process, the required bending length and angle of the plate are relatively large. Due to the mechanical structure and mechanical characteristics of the upper and lower molds, a large elastic deflection deformation is generated at the position with a large bending moment load during bending, which reduces the mold adhesion rate of the plate during the bending process. At this time, manual compensation structure is required to compensate the lower mold to ensure normal deflection. Generally, multiple wedge blocks are pushed to move the bottom plate of the lower mold upward to compensate for the bending degree of the current position. During manual adjustment, it is necessary to adjust the position multiple times according to the required compensation position, and then perform control adjustment, which is inconvenient. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a compensation mechanism for a numerically controlled hydraulic plate bending machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A compensation mechanism for a CNC hydraulic sheet metal bending machine, comprising a mounting box mounted on the outer side wall of a CNC hydraulic press body, a fixing box fixedly mounted on the inner wall at the bottom of the CNC hydraulic press body, a compensation plate slidably connected to the inner side wall of the fixing box, an extrusion boss slidably connected to the inner wall of the fixing box bottom, a rotating rod rotatably connected to the inner wall of the mounting box, a fixing ring fixedly mounted on the inner wall of the fixing ring bottom, a lead screw rotatably connected to the inner wall of the fixing ring, the lead screw being connected to the extrusion boss through a nut, and a fixing head fixedly mounted on the inner side wall of the mounting box A micro motor is slidably connected to the inner side wall of the fixed head, a spring is fixedly installed between the micro motor and the inner wall of the fixed head, a semicircular head is fixedly installed on the outer side wall of the micro motor, a docking head is fixedly installed on the outer side wall of the semicircular head, a protrusion is fixedly installed on the outer side wall of the end of the screw, the protrusion cooperates with the docking head, an arc-shaped movable plate is slidably connected to the inner side wall of the installation box, the outer wall of the bottom of the arc-shaped movable plate is rotatably connected to a matching head, and a rotation groove is opened on the outer side wall of the rotating rod, and the rotation groove cooperates with the matching head.

[0007] As a further solution of the utility model: the inner wall at the top of the CNC hydraulic press body is connected with a bending plate through a hydraulic mechanism.

[0008] As a further solution of the utility model: the outer side wall of the installation box is provided with a pushing mechanism, and the pushing mechanism is connected to the rotating rod.

[0009] As a further solution of the utility model: a laser sensor is fixedly installed on the inner side wall of the fixed box.

[0010] As a further solution of the utility model: the pushing mechanism includes a side plate, a square head, and an elastic clamping plate, the side plate is fixedly installed on the outer side wall of the installation box, the square head is connected to the end of the rotating rod, the elastic clamping plate is fixedly installed on the outer side wall of the installation box, and the elastic clamping plate cooperates with the square head.

[0011] As a further solution of the utility model: the outer side wall of the square head is fixedly installed with four-corner ratchets, the side plate is fixedly installed on the outer side wall of the installation box, the inner side wall of the side plate is slidably connected with a push plate, and the inner wall of the push plate is rotatably connected with a rotating rod.

[0012] As a further solution of the utility model: a push head is fixedly installed on the outer side wall of the rotating rod, and a torsion spring is sleeved on the outer side wall of the rotating rod, and two ends of the torsion spring are respectively in contact between the push plate and the outer wall of the push head.

[0013] As a further solution of the utility model: the other end of the push head cooperates with the four-corner ratchet wheels, and a second spring is fixedly installed between the push plate and the side plate.

[0014] Compared with the prior art, the utility model provides a compensation mechanism for a CNC hydraulic plate bending machine, which has the following beneficial effects:

[0015] 1. The utility model is provided with a rotating rod, a spiral groove, a matching head, a docking joint, a boss, and an extrusion boss. When in use, the rotating rod can be rotated to squeeze the semicircular head when the arc-shaped movable plate moves, so that the docking joint and the boss are docked. The micro motor drives the docking joint to rotate the lead screw, and the extrusion boss moves to lift the compensation plate. The compensation plate at different positions can be adjusted without the user moving the position.

[0016] 2. The utility model, by configuring the pushing mechanism as a combination of a four-corner ratchet, a square head, a push plate, a push head, and an elastic splint, can push the push head through the push plate during use to intermittently push the four-corner ratchet, and the four-corner ratchet can also intermittently rotate 90 degrees with the cooperation of the elastic splint, thereby realizing intermittent rotation of the rotating rod, making it convenient for the user to determine the compensation plate group to be adjusted.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a compensation mechanism for a CNC hydraulic sheet metal bending machine proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a fixed box of a compensation mechanism of a CNC hydraulic sheet metal bending machine proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the full cross-section structure of a fixing box of a compensation mechanism of a CNC hydraulic sheet metal bending machine proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the full cross-section structure of a fixed head of a compensation mechanism of a CNC hydraulic sheet metal bending machine proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the internal side wall structure of the installation box of the compensation mechanism of a CNC hydraulic sheet metal bending machine proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of a driving mechanism of a compensation mechanism of a CNC hydraulic sheet metal bending machine proposed by the utility model;

[0024] Figure 7 The utility model provides a schematic diagram of the push head structure of the compensation mechanism of a CNC hydraulic plate bending machine.

[0025] In the figure: 1. installation box; 2. compensation plate; 3. bending plate; 4. CNC hydraulic press body; 5. fixing box; 6. laser sensor; 7. extrusion boss; 8. lead screw; 9. fixing ring; 10. fixing head; 11. rotating rod; 12. bump; 13. docking head; 14. semicircular head; 15. micro motor; 16. spring one; 17. side plate; 18. arc moving plate; 19. matching head; 20. square head; 21. four-corner ratchet; 22. push plate; 23. spring two; 24. elastic splint; 25. rotating groove; 26. torsion spring; 27. push head; 28. rotating rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Embodiment 1:

[0029] A compensation mechanism for a CNC hydraulic sheet metal bending machine is used to facilitate the adjustment of compensation. Figure 1-7As shown, it includes an installation box 1 installed on the outer side wall of the CNC hydraulic press body 4, the bottom inner wall of the CNC hydraulic press body 4 is fixed with a fixing box 5 by bolts, the inner side wall of the fixing box 5 is slidably connected with a compensation plate 2, the bottom inner wall of the fixing box 5 is slidably connected with an extrusion boss 7, the top inner wall of the CNC hydraulic press body 4 is connected with a bending plate 3 through a hydraulic mechanism, the inner wall of the installation box 1 is rotatably connected with a rotating rod 11, the bottom inner wall of the installation box 1 is welded with a fixing ring 9, the inner wall of the fixing ring 9 is rotatably connected with a lead screw 8, the lead screw 8 is connected to the extrusion boss 7 through a nut, the inner side wall of the installation box 1 is welded with a fixing head 10, and the inner side wall of the fixing head 10 is slidably connected There is a micro motor 15, a spring 16 is welded between the micro motor 15 and the inner wall of the fixed head 10, a semicircular head 14 is welded to the outer side wall of the micro motor 15, a docking head 13 is welded to the outer side wall of the semicircular head 14, a convex block 12 is welded to the outer side wall of the end of the lead screw 8, the convex block 12 cooperates with the docking head 13, an arc-shaped moving plate 18 is slidably connected to the inner side wall of the installation box 1, and a matching head 19 is rotatably connected to the outer wall of the bottom of the arc-shaped moving plate 18, a rotating groove 25 is opened on the outer side wall of the rotating rod 11, and the rotating groove 25 cooperates with the matching head 19, and a pushing mechanism is provided on the outer side wall of the installation box 1, and the pushing mechanism is connected to the rotating rod 11;

[0030] The plate is placed between the compensation plate 2 and the bending plate 3, and the bending plate 3 is pressed down to bend. The micro motor 15 is always turned on to drive the docking joint 13 outside the semicircular head 14 to rotate. When compensation is needed, the user can directly drive the rotating rod 11 to rotate through the pushing mechanism. Under the cooperation of the rotating groove 25 outside the rotating rod 11 and the matching head 19, the arc-shaped movable plate 18 slides horizontally to squeeze the semicircular heads 14 of different groups, and then the semicircular head 14 pushes the docking joint 13 to dock with the protrusion 12. At this time, the docking joint 13 drives the lead screw 8 to rotate, so that the extrusion boss 7 moves to lift the compensation plate 2. The user does not need to move the position to adjust the height of the compensation plate 2 at different positions to achieve compensation, thereby improving the bending efficiency.

[0031] The inner side wall of the fixing box 5 is fixed with a laser sensor 6 by bolts;

[0032] During use, the laser sensor 6 can be used to detect the bending degree, and a signal is sent to remind the operator when compensation is needed.

[0033] The pushing mechanism includes a side plate 17, a square head 20, and an elastic clamping plate 24. The side plate 17 is welded to the outer side wall of the installation box 1, the square head 20 is connected to the end of the rotating rod 11, the elastic clamping plate 24 is bonded to the outer side wall of the installation box 1, the elastic clamping plate 24 cooperates with the square head 20, and a four-corner ratchet 21 is welded on the outer side wall of the square head 20. The side plate 17 is welded to the outer side wall of the installation box 1, and a push plate 22 is slidably connected to the inner side wall of the side plate 17. The inner wall of the push plate 22 is rotatably connected to the rotating rod 28, and a push head 27 is welded on the outer side wall of the rotating rod 28. A torsion spring 26 is sleeved on the outer side wall of the rotating rod 28, and two ends of the torsion spring 26 are respectively in contact between the push plate 22 and the outer wall of the push head 27, and the other end of the push head 27 cooperates with the four-corner ratchet 21, and a spring 23 is welded between the push plate 22 and the side plate 17;

[0034] When in use, the four-corner ratchet 21 can be pushed by the push head 27 at the end of the push plate 22. The four-corner ratchet 21 can be rotated 90 degrees at a time with the cooperation of the square head 20 and the elastic clamping plate 24, thereby realizing the intermittent rotation of the rotating rod 11. Every time it rotates 90 degrees, a group of protrusions 12 docks with the docking head 13, which makes it easy for the user to understand which group of compensation plates 2 is to be adjusted.

[0035] Working principle: When the compensation plate 2 and the bending plate 3 cooperate to achieve the bending of the plate, the bending angle is detected by the laser sensor 6. When compensation is needed, the push plate 22 is directly pushed, so that the push head 27 pushes the four-corner ratchet 21 to drive the fixed head 10 to intermittently rotate 90 degrees, and then the arc-shaped movable plate 18 intermittently slides laterally under the cooperation of the matching head 19 and the rotating groove 25, squeezing the semicircular heads 14 of different groups, and then the semicircular heads 14 push the docking joints 13 to dock with the protrusions 12. At this time, the docking joints 13 drive the screw 8 to rotate, so that the extrusion boss 7 moves to lift the compensation plate 2. The user does not need to move the position to adjust the height of the compensation plates 2 at different positions to achieve compensation, thereby improving the bending efficiency.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compensation mechanism for a CNC hydraulic sheet metal bending machine, comprising a mounting box (1) mounted on an outer side wall of a CNC hydraulic press body (4), characterized in that: A fixing box (5) is fixedly mounted on the inner wall of the bottom of the CNC hydraulic press body (4); a compensation plate (2) is slidably connected to the inner side wall of the fixing box (5); an extrusion boss (7) is slidably connected to the inner wall of the bottom of the fixing box (5); a rotating rod (11) is rotatably connected to the inner wall of the mounting box (1); a fixing ring (9) is fixedly mounted on the inner wall of the bottom of the mounting box (1); a lead screw (8) is rotatably connected to the inner wall of the fixing ring (9); the lead screw (8) is connected to the extrusion boss (7) via a nut; a fixing head (10) is fixedly mounted on the inner side wall of the mounting box (1); a micro motor (15) is slidably connected to the inner side wall of the fixing head (10); the micro motor A spring (16) is fixedly installed between the inner wall of the micro motor (15) and the fixed head (10); a semicircular head (14) is fixedly installed on the outer side wall of the micro motor (15); a docking head (13) is fixedly installed on the outer side wall of the semicircular head (14); a protrusion (12) is fixedly installed on the outer side wall of the end of the lead screw (8); the protrusion (12) cooperates with the docking head (13); the inner side wall of the installation box (1) is slidably connected with an arc-shaped movable plate (18); the outer wall of the bottom of the arc-shaped movable plate (18) is rotatably connected with a matching head (19); the outer side wall of the rotating rod (11) is provided with a rotating groove (25); the rotating groove (25) cooperates with the matching head (19).

2. The compensation mechanism of a CNC hydraulic sheet metal bending machine according to claim 1 is characterized in that: The top inner wall of the CNC hydraulic press body (4) is connected to a bending plate (3) via a hydraulic mechanism.

3. The compensation mechanism of a CNC hydraulic sheet metal bending machine according to claim 2 is characterized in that: The external side wall of the installation box (1) is provided with a pushing mechanism, and the pushing mechanism is connected to the rotating rod (11).

4. The compensation mechanism of a CNC hydraulic sheet metal bending machine according to claim 3 is characterized in that: A laser sensor (6) is fixedly mounted on the inner side wall of the fixed box (5).

5. The compensation mechanism of a CNC hydraulic sheet metal bending machine according to claim 3 is characterized in that: The pushing mechanism comprises a side plate (17), a square head (20), and an elastic clamping plate (24); the side plate (17) is fixedly mounted on the outer side wall of the installation box (1); the square head (20) is connected to the end of the rotating rod (11); the elastic clamping plate (24) is fixedly mounted on the outer side wall of the installation box (1); and the elastic clamping plate (24) cooperates with the square head (20).

6. The compensation mechanism of a CNC hydraulic sheet metal bending machine according to claim 5, characterized in that: The outer side wall of the square head (20) is fixedly mounted with a four-corner ratchet (21), the side plate (17) is fixedly mounted on the outer side wall of the installation box (1), the inner side wall of the side plate (17) is slidably connected with a push plate (22), and the inner wall of the push plate (22) is rotatably connected with a rotating rod (28).

7. The compensation mechanism of a CNC hydraulic plate bending machine according to claim 6 is characterized in that: A push head (27) is fixedly mounted on the outer side wall of the rotating rod (28), and a torsion spring (26) is sleeved on the outer side wall of the rotating rod (28). Two ends of the torsion spring (26) respectively abut between the push plate (22) and the outer wall of the push head (27).

8. The compensation mechanism of a CNC hydraulic plate bending machine according to claim 7 is characterized in that: The other end of the push head (27) is matched with the four-corner ratchet (21), and a second spring (23) is fixedly installed between the push plate (22) and the side plate (17).

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