Stamping die with traceless bending function

Abstract

The utility model discloses a traceless bending stamping die, relates to the field of bending machine dies, and aims to solve the technical problems that a bending knife, a stamping die and a material are in rigid contact when a bending machine works due to the fact that the existing bending machine die and a base are fixedly connected, and the bending knife and the stamping die are not in rigid contact with the material in the prior art. And indentations are sometimes left on the surface of the bent material. A die fixing base is fixedly connected to the upper end of the bending machine die fixing table, a die inserting groove is formed in the die fixing base, a plurality of movable grooves are formed in the lower end face of the die inserting groove at equal intervals, guide columns are fixedly connected to the middles of the movable grooves, and a buffer plate assembly is arranged in the middle of the interior of the die inserting groove. A plurality of lifting pipes are fixedly connected to the lower end of the buffer plate assembly at equal intervals, springs are arranged in the lifting pipes, a stamping die is connected to the upper end of the die fixing base, a plurality of sliding grooves are formed in the stamping die, and limiting connecting pipes are arranged in the sliding grooves.

Description

Technical Field

[0001] The utility model relates to the field of bending machine dies, in particular to a stamping die for seamless bending. Background Art

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket. The workbench consists of a base and a pressure plate. The base is connected to the clamping plate through a hinge. The base consists of a base shell, a coil and a cover plate. The coil is placed in the depression of the base shell, and the top of the depression is covered with a cover plate. When in use, the coil is energized by a wire, and after energization, an attractive force is generated on the pressure plate, thereby clamping the thin plate between the pressure plate and the base. Due to the use of electromagnetic force clamping, the pressure plate can be made into a variety of workpiece requirements, and can process workpieces with side walls, and the operation is also very simple.

[0003] For example, CN 116618485 B, a CNC bending machine, includes a side plate, and the inner side of the bottom wall of the side plate is connected to each other and installed with a support. The present invention is equipped with a support, and the support can provide support for the L plate. The staff needs to place the plate on the top of the lifting plate. At the same time, before bending the plate workpiece, the motor will be started under the control of the CNC system, so that the motor drives the gear to rotate through the reducer according to the actual needs to push the frame to move along the outer side of the arc guide rail. At the same time, the frame root will drive the roller to move together through the connecting plate and the wheel rod under the action of external force, so that the roller uses the friction force with the arc guide rail to rotate with the wheel rod as the center of the circle, and then the frame can move along the arc guide rail under the action of external force with the support of the roller and the support block, thereby ensuring that the moving trajectory of the lifting plate is consistent with the bending trajectory of the plate workpiece, realizing real-time lifting of the bending workpiece, and improving the bending effect.

[0004] The existing bending machine molds are fixedly connected to the base. When the bending machine is working, the bending knife, the stamping mold and the material are in hard contact, which sometimes leaves indentations on the surface of the material after bending. Therefore, the market urgently needs to develop a stamping mold for seamless bending to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a stamping die for seamless bending, so as to solve the problem that the existing bending machine die and the base are fixedly connected to each other in the above-mentioned background technology, and when the bending machine is working, there is a hard contact between the bending knife, the stamping die and the material, so that the surface of the material sometimes has an indentation after bending.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A stamping die for seamless bending, including a bending machine die fixing table, on the upper end of which a die fixing seat is fixedly connected. Inside the die fixing seat, there is a die slot. At equal intervals on the lower end face of the die slot, a plurality of movable slots are provided. In the middle of each movable slot, a guide post is fixedly connected. In the middle of the die slot inside, a buffer plate assembly is provided. At equal intervals on the lower end of the buffer plate assembly, a plurality of lifting tubes are fixedly connected. Inside each lifting tube, a spring is provided. On the upper end of the die fixing seat, a stamping die is connected. On the stamping die, a plurality of sliding slots are provided, and inside the sliding slots, a limiting connecting tube is provided.

[0007] Preferably, the lower end of the lifting tube is inserted into the movable slot and the upper end of the guide post is inserted into the lifting tube.

[0008] Preferably, in the middle of the front and rear ends of each movable slot, a first rectangular limiting sliding groove is provided. At the middle lower ends of the front and rear ends of the lifting tube, a rectangular limiting part is fixedly connected, and the rectangular limiting part slides into the first rectangular limiting sliding groove.

[0009] Preferably, on the front and rear end faces of the die slot, a plurality of second rectangular limiting sliding grooves are provided at equal intervals. On the front and rear end faces of the stamping die, a plurality of rectangular limiting sliding strips are provided at equal intervals.

[0010] Preferably, the lower end of the stamping die slides into the die slot and the rectangular limiting sliding strip slides into the second rectangular limiting sliding groove.

[0011] Preferably, a plurality of threaded holes are provided on the rear end face of the die slot.

[0012] Preferably, the front end of the limiting connecting tube extends out of the front end face of the die fixing seat. The front end of the limiting connecting tube is inserted into the threaded hole. In the middle of the limiting connecting tube, a screw rod is provided. The rear end of the screw rod passes through the middle of the limiting connecting tube and is threadedly connected to the threaded hole.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. In this utility model, through the setting of the buffer plate assembly, a buffer plate assembly is provided in the middle of the die slot inside. Place the material on the stamping die. When the die blade descends to press the material, it further pushes the stamping die to descend. Through the buffer plate assembly being pressed and descending, at the same time, a plurality of lifting tubes slide into the movable slots, and at the same time, the guide posts extend into the lifting tubes to compress the springs, buffering the instantaneous impact force when the die blade descends to press the material. When the stamping die descends, the die blade bends the material synchronously, making the material bend more gently and preventing the generation of indentations.

[0015] 2. In this utility model, through the arrangement of the limit connecting pipe, the limit connecting pipe is arranged inside the sliding groove. The front end of the limit connecting pipe extends out of the front end face of the mold fixing seat. The front end of the limit connecting pipe is inserted into the internal front end of the threaded hole. A screw rod is arranged in the middle of the limit connecting pipe. The rear end of the screw rod passes through the middle of the limit connecting pipe and is threadedly connected with the threaded hole. After the lower end of the stamping die slides into the die slot, the limit connecting pipe is inserted from one side of the mold fixing seat, passes through the sliding groove on the stamping die and then is inserted into the internal front end of the threaded hole. After the screw rod passes through the middle of the limit connecting pipe and is threadedly connected and fixed with the threaded hole, when the stamping die descends, the limit connecting pipe moves along the sliding groove to limit the rising height of the stamping die. At the same time, by disassembling the limit connecting pipe from the mold fixing seat, the stamping die can be moved upward out of the mold fixing seat, which is convenient for replacing the stamping die.

[0016] 3. In this utility model, through the arrangement of the rectangular limit part, the first rectangular limit sliding grooves are arranged in the middle of the front and rear ends of the movable groove. The middle lower ends of the front and rear ends of the lifting pipe are fixedly connected with rectangular limit parts. The rectangular limit parts slide into the internal part of the first rectangular limit sliding grooves to limit the lifting pipe, preventing the lifting pipe from sliding out of the movable groove due to excessive spring thrust when replacing the stamping die on the mold fixing seat, thereby affecting the normal use of the buffer plate assembly. Description of the Drawings

[0017] Figure 1 is the front view of a stamping die for traceless bending of the present utility model;

[0018] Figure 2 is the main sectional view of the present utility model;

[0019] Figure 3 is the side sectional view of the lifting pipe of the present utility model;

[0020] Figure 4 is the side sectional view of the limit connecting pipe of the present utility model.

[0021] In the figure: 1. Bending machine die fixing table; 101. Mold fixing seat; 102. Die slot; 103. Movable groove; 104. Guide post; 105. First rectangular limit sliding groove; 106. Second rectangular limit sliding groove; 107. Threaded hole; 2. Buffer plate assembly; 201. Lifting pipe; 202. Spring; 203. Rectangular limit part; 3. Stamping die; 301. Rectangular limit slide bar; 302. Sliding groove; 4. Limit connecting pipe; 401. Screw rod. Detailed Embodiment

[0022] 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.

[0023] Please refer to Figures 1-4 Figures 1-4 , an embodiment provided by the present utility model: a stamping die for seamless bending, including a bending machine die fixing table 1, a die fixing seat 101 is fixedly connected to the upper end of the bending machine die fixing table 1, a die slot 102 is arranged inside the die fixing seat 101, a plurality of movable slots 103 are arranged at equal intervals on the lower end surface of the die slot 102, a guide post 104 is fixedly connected to the middle of each movable slot 103, a buffer plate assembly 2 is arranged in the middle inside the die slot 102, a plurality of lifting tubes 201 are fixedly connected to the lower end of the buffer plate assembly 2 at equal intervals, a spring 202 is arranged inside each lifting tube 201, a stamping die 3 is connected to the upper end of the die fixing seat 101, a plurality of sliding slots 302 are arranged on the stamping die 3, and a limit connecting tube 4 is arranged inside the sliding slot 302.

[0024] Further, the lower end of the lifting tube 201 is inserted into the movable slot 103 and the upper end of the guide post 104 is inserted into the lifting tube 201. The buffer plate assembly 2 is pressed down, and at the same time, a plurality of lifting tubes 201 slide into the movable slot 103, and at the same time, the guide post 104 extends into the lifting tube 201 to compress the spring 202.

[0025] Further, first rectangular limit sliding grooves 105 are arranged in the middle of the front and rear ends of the movable slot 103, rectangular limit parts 203 are fixedly connected to the middle lower ends of the front and rear ends of the lifting tube 201, and the rectangular limit parts 203 slide into the first rectangular limit sliding grooves 105 to limit the lifting tube 201, preventing the lifting tube 201 from sliding out of the movable slot 103 due to the excessive thrust of the spring 202 when replacing the stamping die 3 on the die fixing seat 101, thereby affecting the normal use of the buffer plate assembly 2.

[0026] Further, a plurality of second rectangular limit sliding grooves 106 are arranged at equal intervals on the front and rear end faces of the die slot 102, and a plurality of rectangular limit sliding strips 301 are arranged at equal intervals on the front and rear end faces of the stamping die 3.

[0027] Further, the lower end of the stamping die 3 slides into the die slot 102 and the rectangular limit sliding strips 301 slide into the second rectangular limit sliding grooves 106. The buffer plate assembly 2 supports the stamping die 3. At the same time, when the stamping die 3 moves up and down, the rectangular limit sliding strips 301 slide inside the second rectangular limit sliding grooves 106 to limit and guide the up and down movement of the stamping die 3, ensuring the stability of the up and down movement of the stamping die 3.

[0028] Further, a plurality of threaded holes 107 are arranged on the rear end face of the die slot 102.

[0029] Furthermore, the front end of the limit connecting pipe 4 extends out of the front end face of the die fixing seat 101. The limit connecting pipe 4 is inserted into the inner front end of the threaded hole 107. A screw rod 401 is arranged in the middle of the limit connecting pipe 4. The rear end of the screw rod 401 passes through the middle of the limit connecting pipe 4 and is threadedly connected with the threaded hole 107. After the lower end of the stamping die 3 slides into the die slot 102, the limit connecting pipe 4 is inserted from one side of the die fixing seat 101, passes through the sliding slot 302 on the stamping die 3, and then is inserted into the inner front end of the threaded hole 107. After the screw rod 401 passes through the middle of the limit connecting pipe 4, it is threadedly connected and fixed with the threaded hole 107. When the stamping die 3 descends, the limit connecting pipe 4 moves along the sliding slot 302 to limit the ascending height of the stamping die 3. At the same time, when the limit connecting pipe 4 is disassembled from the die fixing seat 101, the stamping die 3 can be moved upward out of the die fixing seat 101, which is convenient for replacing the stamping die 3.

[0030] Working principle: During use, the lower end of the stamping die 3 slides into the die slot 102 and the rectangular limit slide bar 301 slides into the inner part of the second rectangular limit sliding groove 106. The stamping die 3 is supported by the buffer plate assembly 2. At the same time, when the stamping die 3 ascends and descends, the rectangular limit slide bar 301 slides along the inner part of the second rectangular limit sliding groove 106 to limit and guide the ascending and descending of the stamping die 3, ensuring the stability of the ascending and descending of the stamping die 3. After the lower end of the stamping die 3 slides into the die slot 102, the limit connecting pipe 4 is inserted from one side of the die fixing seat 101, passes through the sliding slot 302 on the stamping die 3, and then is inserted into the inner front end of the threaded hole 107. After the screw rod 401 passes through the middle of the limit connecting pipe 4, it is threadedly connected and fixed with the threaded hole 107. When the stamping die 3 descends, the limit connecting pipe 4 moves along the sliding slot 302 to limit the ascending height of the stamping die 3. At the same time, when the limit connecting pipe 4 is disassembled from the die fixing seat 101, the stamping die 3 can be moved upward out of the die fixing seat 101, which is convenient for replacing the stamping die 3. The material is placed on the stamping die 3. When the die cutter descends to press the material, the stamping die 3 is pushed to descend. The buffer plate assembly 2 is pressed to descend, and at the same time, multiple lifting pipes 201 slide into the inner part of the movable slot 103. At the same time, the guide posts 104 extend into the lifting pipes 201 to compress the springs 202, buffering the instantaneous impact force when the die cutter descends to press the material. When the stamping die 3 descends, the die cutter bends the material synchronously, making the material bend more gently and preventing the generation of indentation marks.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A stamping die for seamless bending, comprising a bending machine die fixing table (1), characterized in that: The upper end of the bending machine mold fixing platform (1) is fixedly connected to a mold fixing seat (101), a mold slot (102) is arranged inside the mold fixing seat (101), a plurality of movable slots (103) are arranged at equal intervals on the lower end surface of the mold slot (102), the middle of each movable slot (103) is fixedly connected to a guide column (104), a buffer plate assembly (2) is arranged in the middle of the mold slot (102), a plurality of lifting tubes (201) are fixedly connected to the lower end of the buffer plate assembly (2) at equal intervals, each lifting tube (201) is provided with a spring (202), a stamping die (3) is connected to the upper end of the mold fixing seat (101), a plurality of sliding slots (302) are arranged on the stamping die (3), and a limiting connection tube (4) is arranged inside each sliding slot (302).

2. A stamping die for seamless bending according to claim 1, characterized in that: The lower end of the lifting tube (201) is inserted into the movable groove (103), and the upper end of the guide column (104) is inserted into the lifting tube (201).

3. A stamping die for seamless bending according to claim 1, characterized in that: A first rectangular limiting sliding groove (105) is provided in the middle of both front and rear ends of the movable groove (103), and a rectangular limiting portion (203) is fixedly connected to the lower middle end of both front and rear ends of the lifting tube (201), and the rectangular limiting portion (203) slides into the first rectangular limiting sliding groove (105).

4. A stamping die for seamless bending according to claim 1, characterized in that: A plurality of second rectangular limiting sliding grooves (106) are arranged at equal intervals on the front and rear end surfaces of the mold slot (102), and a plurality of rectangular limiting sliding strips (301) are arranged at equal intervals on the front and rear end surfaces of the stamping mold (3).

5. A stamping die for seamless bending according to claim 4, characterized in that: The lower end of the punching die (3) slides into the die slot (102) and causes the rectangular limiting slide bar (301) to slide into the interior of the second rectangular limiting slide groove (106).

6. The stamping die for seamless bending according to claim 1, characterized in that: A plurality of threaded holes (107) are arranged on the rear end surface of the mold slot (102).

7. A stamping die for seamless bending according to claim 6, characterized in that: The front end of the position-limiting connecting tube (4) extends out of the front end surface of the mold fixing seat (101), the position-limiting connecting tube (4) is inserted into the front end of the threaded hole (107), a screw rod (401) is arranged in the middle of the position-limiting connecting tube (4), and the rear end of the screw rod (401) passes through the middle of the position-limiting connecting tube (4) and is threadedly connected to the threaded hole (107).

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