Bending die replacing device of numerical control bending machine

Abstract

The utility model discloses a bending die replacing device of a numerical control bending machine, which comprises an operation table, the upper end of the operation table is fixedly connected with a shell, a female die is arranged in the shell, the upper end of the female die extends to the upper end of the shell, the front surface and the back surface of the female die are respectively provided with a locking hole, and the locking holes are matched with the locking holes. A locking hole is formed in the outer shell, a locking column and a locking mechanism are inserted into the locking hole, the locking mechanism is arranged in the outer shell, the locking mechanism is used for driving the locking column to move, the number of the mounting plates is two, and the two mounting plates are located above the operation table. When the female die needs to be replaced, firstly, a motor is started through an external controller, the motor drives a positive and negative lead screw to start to rotate, the positive and negative lead screw rotates to drive a nut seat to move outwards, the nut seat drives a movable plate to move outwards, and the movable plate drives a guide block to slide on a guide rod; and meanwhile, the moving plate drives the locking column to move outwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control bending machines, and particularly relates to a device for replacing a bending die of a numerical control bending machine. Background Art

[0002] A bending machine is a machine that can bend thin plates. It mainly bends sheet materials through the cooperation of an upper die and a lower die. Among them, the upper and lower dies in a numerical control bending machine are tools for forming and processing sheet materials. It mainly realizes the processing of the external shape of an object through the change of the physical state of the formed material, and is a tool for making a blank into a workpiece with a specific shape and size under the action of the pressure of the bending machine.

[0003] However, there are some problems in the prior art: the existing bending dies of numerical control bending machines are inconvenient to disassemble and replace. Since the bending dies on the bending machine need to be replaced according to processing requirements, a large number of bolts and other components are often used during the replacement, which may lead to the loss of the disassembled bolts and other components. Moreover, it is difficult to position during the replacement, increasing the disassembly and assembly time and affecting the work efficiency. Therefore, we propose a device for replacing a bending die of a numerical control bending machine. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a device for replacing a bending die of a numerical control bending machine, which has the advantage of being convenient for disassembly and replacement, and solves the problems that the bending die of a numerical control bending machine is inconvenient to disassemble and replace. Since the bending die on the bending machine needs to be replaced according to processing requirements, a large number of bolts and other components are often used during the replacement, which may lead to the loss of the disassembled bolts and other components. Moreover, it is difficult to position during the replacement, increasing the disassembly and assembly time and affecting the work efficiency.

[0005] The utility model is realized as follows. A device for replacing a bending die of a numerical control bending machine includes:

[0006] An operating table, the upper end of the operating table is fixedly connected with a housing. The inside of the housing is provided with a female die, the upper end of the female die extends to the upper end of the housing, and locking holes are formed in the front and back surfaces of the female die, and locking columns are inserted into the locking holes.

[0007] A locking mechanism, the locking mechanism is arranged inside the housing and is used to drive the movement of the locking column.

[0008] Mounting plates, there are two groups of mounting plates. The two groups of mounting plates are located above the operating table. The upper ends of the mounting plates are fixedly connected with hydraulic cylinders. The output ends of the hydraulic cylinders penetrate to the lower part of the mounting plates and are fixedly connected with sliding plates. A male die is arranged at the lower end of the sliding plate.

[0009] A bearing plate is fixedly connected to the back surface of the mounting plate. Support side plates are fixedly connected to both sides of the bearing plate, and the lower ends of the support side plates are fixedly connected to the upper end of the operating table.

[0010] The locking mechanism includes a motor. The output end of the motor is fixedly connected to a forward and reverse lead screw. Nut seats are threadedly connected to both the front side and the rear side of the surface of the forward and reverse lead screw. A moving plate is fixedly connected to one side of the nut seat, and the moving plate is fixedly connected to a locking column.

[0011] A guide block is fixedly connected to the other side of the moving plate. The number of the guide blocks is two groups. A guide rod is slidably connected inside the two groups of guide blocks, and the guide rod is longitudinally fixedly connected inside the housing.

[0012] A positioning groove is formed at the lower end of the female mold. A positioning block is snap-fitted inside the positioning groove. Limiting baffles are fixedly connected to both sides of the positioning block, and the lower ends of the limiting baffles and the positioning block are fixedly connected to the lower end inside the housing.

[0013] A sliding groove is formed on the support side plate, and both sides of the sliding plate are slidably connected to the inside of the sliding groove.

[0014] A protective panel is arranged on the front surface of the support side plate, and the protective panel and the support side plate are movably connected by bolts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] When the female mold needs to be replaced, first start the motor through an external controller. The motor drives the forward and reverse lead screw to start rotating. The rotation of the forward and reverse lead screw will drive the nut seat to move outwards. The nut seat drives the moving plate to move outwards. The moving plate drives the guide block to slide on the guide rod, and at the same time, the moving plate drives the locking column to move outwards.

[0017] The locking column is moved out of the locking hole, and then the female mold is pulled upwards. At this time, the positioning groove under the female mold will be separated from the positioning block, completing the disassembly step. When the female mold needs to be installed, the reverse operation can be performed according to the above steps. Among them, when the male mold needs to be disassembled and assembled, the disassembly and assembly steps and structures of the female mold can be referred to. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0019] Figure 1This is the overall structural schematic diagram provided by the present utility model.

[0020] Figure 2 This is the three-dimensional schematic diagram of the skateboard structure provided by the present utility model.

[0021] Figure 3 This is the three-dimensional schematic diagram of the outer shell structure provided by the present utility model.

[0022] Figure 4 This is the unfolded schematic diagram of the positioning groove and positioning block structure provided by the present utility model.

[0023] Figure 5 This is the three-dimensional schematic diagram of the sliding groove and supporting side plate structure provided by the present utility model.

[0024] In the figure: 1 operating table; 2 outer shell; 3 female die; 4 locking hole; 5 locking mechanism; 51 motor; 52 positive and negative lead screw; 53 nut seat; 54 moving plate; 6 mounting plate; 7 hydraulic cylinder; 8 skateboard; 9 male die; 10 bearing plate; 11 supporting side plate; 12 guide block; 13 guide rod; 14 positioning groove; 15 positioning block; 16 limit baffle; 17 sliding groove; 18 protective panel; 19 locking column. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1 to 5 shown, a die replacement device for a numerical control bending machine provided by an embodiment of the present utility model includes:

[0027] An operating table 1, the upper end of the operating table 1 is fixedly connected with an outer shell 2, a female die 3 is arranged inside the outer shell 2, the upper end of the female die 3 extends to the upper end of the outer shell 2, locking holes 4 are formed in both the front and back of the female die 3, and a locking column 19 is inserted into the locking holes 4;

[0028] A locking mechanism 5, the locking mechanism 5 is arranged inside the outer shell 2, and the locking mechanism 5 is used to drive the movement of the locking column 19;

[0029] Mounting plates 6, there are two groups of mounting plates 6, the two groups of mounting plates 6 are located above the operating table 1, the upper ends of the mounting plates 6 are fixedly connected with hydraulic cylinders 7, the output ends of the hydraulic cylinders 7 penetrate below the mounting plates 6 and are fixedly connected with a skateboard 8, and a male die 9 is arranged at the lower end of the skateboard 8.

[0030] Further, a bearing plate 10 is fixedly connected to the back surface of the mounting plate 6. Support side plates 11 are fixedly connected to both sides of the bearing plate 10. The lower ends of the support side plates 11 are fixedly connected to the upper end of the operating table 1. When the female die 3 needs to be replaced, first, the motor 51 is started through an external controller. The motor 51 drives the forward and reverse lead screw 52 to start rotating. The rotation of the forward and reverse lead screw 52 will drive the nut seat 53 to move outwards.

[0031] Through the mutual cooperation of the bearing plate 10 and the support side plates 11, a stabilizing effect is exerted on the mounting plate 6 and the hydraulic cylinder 7 during use, increasing the load-bearing support force of the mounting plate 6 and the hydraulic cylinder 7, and ensuring the bearing capacity during the downward stamping of the male die 9.

[0032] Further, the locking mechanism 5 includes a motor 51. The output end of the motor 51 is fixedly connected to a forward and reverse lead screw 52. Nut seats 53 are threadedly connected to both the front side and the rear side of the surface of the forward and reverse lead screw 52. A moving plate 54 is fixedly connected to one side of the nut seat 53. The moving plate 54 is fixedly connected to the locking column 19. A bearing seat is sleeved on the back surface of the forward and reverse lead screw 52, and the bearing seat is fixedly connected to the housing 2. The nut seat 53 drives the moving plate 54 to move outwards. The moving plate 54 drives the guide block 12 to slide on the guide rod 13. At the same time, the moving plate 54 drives the locking column 19 to move outwards.

[0033] Through the setting of the bearing seat, a role of preventing shaking is exerted on the forward and reverse lead screw 52 during use, ensuring the running stability of the forward and reverse lead screw 52, and preventing the forward and reverse lead screw 52 from jittering during daily use.

[0034] Further, guide blocks 12 are fixedly connected to the other side of the moving plate 54. The number of the guide blocks 12 is two groups. The guide rod 13 is slidably connected inside the two groups of guide blocks 12. The guide rod 13 is longitudinally fixedly connected inside the housing 2, so that the locking column 19 is moved out of the locking hole 4. Then, the female die 3 is pulled upwards. At this time, the positioning groove 14 under the female die 3 will be separated from the positioning block 15, completing the disassembly step.

[0035] Through the mutual cooperation of the guide block 12 and the guide rod 13, a role of enabling the moving plate 54 to move horizontally and stably is exerted on the moving plate 54 during use, preventing the moving plate 54 from shaking during movement, and further ensuring that the locking column 19 is stably locked and fixed with the locking hole 4, avoiding the movement and deviation of the locking column 19.

[0036] Further, a positioning groove 14 is opened at the lower end of the female die 3. A positioning block 15 is clamped inside the positioning groove 14. Limiting baffles 16 are fixedly connected to both sides of the positioning block 15. The lower ends of the limiting baffles 16 and the positioning block 15 are fixedly connected to the lower end inside the housing 2. When the female die 3 needs to be installed, the opposite operation can be performed according to the above steps. Among them, when the male die 9 needs to be disassembled and assembled, the disassembly and assembly steps and structure of the female die 3 can be referred to.

[0037] Through the mutual cooperation of the limit baffle 16, the positioning block 15 and the positioning groove 14, it plays a role in facilitating positioning and fixing during the installation and use of the female die 3, preventing the female die 3 from shifting during positioning and affecting the installation accuracy of the female die 3.

[0038] Furthermore, a sliding groove 17 is formed on the supporting side plate 11, and both sides of the sliding plate 8 are slidably connected to the inside of the sliding groove 17.

[0039] Through the mutual cooperation of the sliding groove 17 and the sliding plate 8, it plays a role in making the upper and lower movement of the male die 9 stable during use, preventing the male die 9 from shifting and affecting the processing accuracy of the workpiece by the male die 9 and the female die 3.

[0040] Furthermore, a protective panel 18 is arranged on the front surface of the supporting side plate 11, and the protective panel 18 is movably connected to the supporting side plate 11 by bolts.

[0041] Through the setting of the protective panel 18, it plays a role in good protection performance for the male die 9 and the female die 3 during use, and can effectively prevent the formed workpiece from flying out and causing harm to the operator during the processing and forming of the workpiece.

[0042] The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A bending die replacement device for a CNC bending machine, characterized in that: include: An operating table (1), wherein the upper end of the operating table (1) is fixedly connected to a housing (2), a concave mold (3) is arranged inside the housing (2), the upper end of the concave mold (3) extends to the upper end of the housing (2), locking holes (4) are provided on the front and back sides of the concave mold (3), and a locking column (19) is inserted into the locking hole (4); A locking mechanism (5), the locking mechanism (5) being arranged in the housing (2), the locking mechanism (5) being used to drive the movement of the locking column (19); The mounting plates (6) are in two groups, and the two groups of mounting plates (6) are located above the operating table (1). The upper ends of the mounting plates (6) are fixedly connected to hydraulic cylinders (7), and the output ends of the hydraulic cylinders (7) extend through the lower side of the mounting plates (6) and are fixedly connected to slide plates (8). The lower end of the slide plates (8) is provided with a convex mold (9).

2. The bending die replacement device for a CNC bending machine according to claim 1, characterized in that: The back of the mounting plate (6) is fixedly connected to a bearing plate (10), both sides of the bearing plate (10) are fixedly connected to supporting side plates (11), and the lower end of the supporting side plates (11) is fixedly connected to the upper end of the operating table (1).

3. The bending die replacement device for a CNC bending machine according to claim 1, characterized in that: The locking mechanism (5) comprises a motor (51), the output end of the motor (51) being fixedly connected to a forward and reverse lead screw (52), the front and rear sides of the surface of the forward and reverse lead screw (52) being threadedly connected to a nut seat (53), one side of the nut seat (53) being fixedly connected to a moving plate (54), and the moving plate (54) being fixedly connected to a locking column (19).

4. The bending die replacement device for a CNC bending machine according to claim 3, characterized in that: A guide block (12) is fixedly connected to the other side of the movable plate (54), and the guide blocks (12) are provided in two groups. The two groups of guide blocks (12) are internally slidably connected to guide rods (13), and the guide rods (13) are longitudinally fixedly connected to the outer shell (2).

5. The bending die replacement device for a CNC bending machine according to claim 1, characterized in that: A positioning groove (14) is formed at the lower end of the concave die (3), a positioning block (15) is clamped inside the positioning groove (14), both sides of the positioning block (15) are fixedly connected to limit baffles (16), and the lower ends of the limit baffles (16) and the positioning block (15) are fixedly connected to the lower end of the inner part of the housing (2).

6. The device for replacing a bending die of a CNC bending machine according to claim 2, characterized in that: The supporting side plate (11) is provided with a sliding groove (17), and the interior of the sliding groove (17) is slidably connected to two sides of the sliding plate (8).

7. The device for replacing a bending die of a CNC bending machine according to claim 2, characterized in that: A protective panel (18) is provided on the front side of the supporting side plate (11), and the protective panel (18) and the supporting side plate (11) are movably connected by bolts.

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