Automatic hardware stamping die

Abstract

The invention relates to the technical field of stamping dies, and discloses an automatic hardware stamping die which comprises a stamping workbench, a plurality of lower die shells are arranged above the stamping workbench, a mounting frame is fixedly mounted at the upper end of the stamping workbench, a base is fixedly mounted on one side of the mounting frame, and an opening is formed in the upper end of the base in a penetrating mode; the multiple lower die shells are arranged, the two sets of conveying belts are used for conveying the lower die shells, when one lower die shell is located under the stamping upper die, embossing work is conducted, at the moment, the conveying belts do not work, discharging can be conducted on the lower die shell at the other position through an external mechanical arm, and after embossing is finished, the lower die shells are conveyed through the conveying belts. In the process that the stamping upper die moves upwards, the conveying belt can convey another lower die shell to the position under the stamping upper die, stamped parts are conveyed till openings of the lower die shells face downwards, the parts fall off, equipment for taking the parts does not need to be arranged, stamping work can be continuously and circularly carried out, and the working efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, and particularly to an automatic hardware stamping die. Background Art

[0002] When a hardware stamping die is used in cold stamping processing, through the cooperation of the die, pressure is applied to the material to cause separation or plastic deformation, so as to obtain a required hardware part through a pressure processing method, such as embossing and other operations. An existing hardware stamping die, such as an automatic rotary hardware precision stamping die disclosed in the authorized publication number CN216324584U, includes a base and a top plate located above the base. Two hydraulic rods are connected between the base and the top plate, and the top of the base is rotatably connected with a processing plate through a bearing. This automatic rotary hardware precision stamping die can not only improve the stamping efficiency but also has the function of rapid demoulding.

[0003] When the existing stamping die embosses hardware parts, the parts are placed in the die groove, and pressure is applied to them by the upper die. After each part is processed, it is necessary to take out the material, then put in the material and process again, which is not conducive to factory processing and has low efficiency. In order to improve the efficiency, some stamping dies, similar to the above-mentioned prior art, are provided with multiple die grooves and can be continuously switched. However, in the above-mentioned prior art, when demoulding, all the parts in all the die grooves are pushed out. Still, it is necessary to stop stamping, take out the stamped parts, then put in new parts again, and then control all the parts to move down before stamping can be carried out again, which affects the efficiency and is not conducive to factory processing. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an automatic hardware stamping die with high stamping efficiency that can be continuously carried out.

[0005] To achieve the above object, the present invention provides the following technical solution: An automatic hardware stamping die includes a stamping workbench. Above the stamping workbench, there are a plurality of lower die shells. An installation frame is fixedly installed at the upper end of the stamping workbench. A base is fixedly installed on one side of the installation frame. A connection port is penetrated and opened at the upper end of the base. A stamping assembly is arranged on the installation frame. A support is fixedly installed at the upper end of the stamping workbench. A conveying assembly for controlling the movement of the lower die shell is arranged on the support. Clamping assemblies are penetrated and arranged on both sides of the lower die shell. A limiting block for controlling the movement of the clamping assembly is fixedly installed on the side wall of the connection port. A embossing die is fixedly installed inside the lower die shell. A die plate is slidably arranged outside the embossing die. Pushing assemblies for controlling the movement of the die plate are penetrated and arranged on both sides at the lower end of the lower die shell. Support plates for supporting the lower die shell are also fixedly installed on both side walls of the connection port.

[0006] Preferably, there are two sets of the conveying components. The conveying component includes a pulley rotatably connected to the bracket. A conveyor belt is sleeved between the two pulleys. A motor for controlling the rotation of the pulley is fixedly installed on one side of the bracket. Slide openings are formed on both side walls of the connection port. The conveyor belt passes through the slide openings and is in sliding contact with them. A plurality of the lower die shells are fixedly installed between the two conveyor belts.

[0007] Preferably, the clamping component includes placing grooves formed on both sides of the lower die shell. Clamping blocks are slidably arranged through the placing grooves. One end of the clamping block located outside the lower die shell is arc-shaped. A telescopic spring is fixedly installed between the clamping block and the placing groove. The limiting block is in sliding contact with the clamping block and is used to push the clamping block to move.

[0008] Preferably, an elastic clamping piece is fixedly installed at one end of the clamping block located inside the lower die shell.

[0009] Preferably, the pushing component includes an installation opening formed at the bottom of the lower die shell. An L-shaped push block is slidably arranged in the installation opening. The L-shaped push block is fixedly connected to the die plate. A reset spring is fixedly arranged between the L-shaped push block and the installation opening. One end of the L-shaped push block located outside the lower die shell is arc-shaped. A chute is formed at the upper end of the support plate. The L-shaped push block is in sliding contact with the chute. The L-shaped push block is in sliding contact with the lower end of the support plate. The lower end of the support plate is used to push the L-shaped push block to move.

[0010] Preferably, a plurality of arc-shaped openings are formed at the lower end of the support plate. The L-shaped push block is in sliding contact with the arc-shaped openings.

[0011] Preferably, a fixing block is fixedly installed at the bottom of the lower die shell. A spring rotating shaft is rotatably installed through the fixing block. An arc-shaped impact block is fixedly installed at one end of the spring rotating shaft. A gear is fixedly installed at the other end of the spring rotating shaft. A plurality of tooth blocks meshing with the gear are fixedly installed on one side of the support plate.

[0012] Preferably, the stamping component includes a hydraulic rod fixedly installed on the installation frame. A stamping upper die is fixedly installed at the lower end of the hydraulic rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets multiple lower die housings and uses two sets of conveyor belts to convey the lower die housings. When one lower die housing is directly below the upper stamping die, embossing work is carried out. At this time, the conveyor belts do not work, and an external manipulator can be used to place materials on another lower die housing. After the embossing is completed, during the upward movement of the upper stamping die, the conveyor belts can convey another lower die housing directly below the upper stamping die. The stamped parts are sent until the opening of the lower die housing faces downward, and the parts fall off. There is no need to equip additional equipment for taking parts, and the stamping work can be continuously cycled, with high work efficiency.

[0014] In the present invention, clamping blocks are slidably arranged through both placement grooves on both sides of the lower die housing, and limit blocks for controlling the movement of the clamping blocks are fixedly installed on the side walls of the opening. Before and after the stamping of the hardware parts, when the clamping blocks do not contact the limit blocks, due to the action of the telescopic springs, the inner sides of the clamping blocks are controlled to be located within the placement grooves. At this time, it is convenient for feeding before stamping and the falling of materials after stamping. After the clamping blocks contact the limit blocks, they will push the clamping blocks to move, clamping and limiting the hardware parts.

[0015] In the present invention, the embossing die and the die plate are set to be in a sliding contact state. Since after stamping, the embossed position is closely attached to the embossing die and the die plate, during the conveyance of the lower die housing, when the opening of the lower die housing faces downward, by squeezing the L-shaped push block at the lower end of the support plate, the die plate and the embossing die are pushed to be misaligned, facilitating the separation of the stamped parts from the embossing die for demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present invention; Figure 2 is a schematic three-dimensional connection structure diagram of the base and the conveying assembly of the present invention; Figure 3 is a schematic partial three-dimensional structure diagram of the base of the present invention; Figure 4 is Figure 3 an enlarged structural diagram of B in Figure 5 is a schematic connection structure diagram of the lower die housing and the support plate of the present invention; Figure 6 is Figure 5 an enlarged structural diagram of A in Figure 7 is a schematic three-dimensional structure diagram of the lower die housing of the present invention; Figure 8 is a schematic three-dimensional sectional structure diagram of the lower die housing of the present invention; Figure 9 is a schematic disassembled structure diagram of the lower die housing and the die plate of the present invention.

[0017] In the figure: 1, stamping workbench; 2, mounting frame; 3, hydraulic rod; 4, base; 5, upper stamping die; 6, motor; 7, lower die housing; 8, pulley; 9, conveyor belt; 10, bracket; 11, connection port; 12, spring rotating shaft; 13, limit block; 14, sliding port; 15, sliding groove; 16, support plate; 17, arc-shaped port; 18, fixing block; 19, arc-shaped impact block; 20, tooth block; 21, gear; 22, L-shaped push block; 23, return spring; 24, mounting port; 25, die plate; 26, embossing die; 27, elastic clamping piece; 28, telescopic spring; 29, clamping block; 30, placing groove. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] Please refer to Figures 1-9 , an automatic hardware stamping die, including a stamping workbench 1, a plurality of lower die housings 7 are arranged above the stamping workbench 1, a mounting frame 2 is fixedly installed at the upper end of the stamping workbench 1, a base 4 is fixedly installed on one side of the mounting frame 2, a connection port 11 is penetrated and opened at the upper end of the base 4, the lower die housing 7 is located in the connection port 11, a stamping assembly is arranged on the mounting frame 2, the stamping assembly includes a hydraulic rod 3 fixedly installed on the mounting frame 2, a lower end of the hydraulic rod 3 is fixedly installed with an upper stamping die 5, a bracket 10 is fixedly installed at the upper end of the stamping workbench 1, a conveying assembly for controlling the movement of the lower die housing 7 is arranged on the bracket 10, the conveying assembly includes a pulley 8 rotatably connected to the bracket 10, a conveyor belt 9 is sleeved between the two pulleys 8, a motor 6 for controlling the rotation of the pulley 8 is fixedly installed on one side of the bracket 10, sliding ports 14 are opened on both side walls of the connection port 11, the conveyor belt 9 penetrates through the sliding ports 14 and is in sliding contact with them, a plurality of lower die housings 7 are fixedly installed between the two conveyor belts 9, and the two conveyor belts 9 are used to convey the lower die housing 7. When one of the lower die housings 7 is conveyed to directly below the upper stamping die 5, the hydraulic rod 3 can be started to work at this time to emboss the hardware parts. When stamping, the conveyor belt 9 does not work. An external manipulator can be used to feed the lower die housing 7 at another position (the lower die housing 7 with the opening facing upward, and the plurality of lower die housings 7 are arranged at equal intervals, so that the feeding position of the manipulator remains unchanged each time stamping is performed). After embossing, during the process of the hydraulic rod 3 controlling the upper stamping die 5 to move upward, the conveyor belt 9 can convey another lower die housing 7 to directly below the upper stamping die 5, and the stamped parts are sent. Until the opening of the lower die housing 7 faces downward, the parts fall off, and there is no need to be equipped with equipment for taking parts, and the stamping work can be continuously cycled, with high work efficiency; Clamping components are arranged through both sides of the lower mold housing 7. A limiting block 13 for controlling the movement of the clamping components is fixedly installed on the side wall of the connection port 11. The clamping components include placing grooves 30 opened on both sides of the lower mold housing 7. A clamping block 29 is slidably arranged through the placing groove 30. One end of the clamping block 29 located outside the lower mold housing 7 is arc-shaped. A telescopic spring 28 is fixedly installed between the clamping block 29 and the placing groove 30. The limiting block 13 is in sliding contact with the clamping block 29 and is used to push the clamping block 29 to move. When the lower mold housing 7 opens downward, the clamping block 29 is not in contact with the limiting block 13. Due to the action of the telescopic spring 28, the inner side of the clamping block 29 is controlled to be located in the placing groove 30. At this time, it is convenient for the material after stamping to fall. When the lower mold housing 7 opens upward and the clamping block 29 is not in contact with the limiting block 13, it is convenient for the feeding work before stamping. During stamping, after the clamping block 29 contacts the limiting block 13, it will push the clamping block 29 to move to clamp and limit the hardware parts. A embossing mold 26 is fixedly installed inside the lower mold housing 7. A mold plate 25 is slidably arranged outside the embossing mold 26. The embossing mold 26 and the mold plate 25 are in a separable state. After stamping, the embossed position is in close fit with the embossing mold 26 and the mold plate 25. By controlling the embossing mold 26 and the mold plate 25 to be misaligned, it is convenient for the parts after stamping to be demolded. Push components for controlling the movement of the mold plate 25 are arranged through both sides at the lower end of the lower mold housing 7. Support plates 16 for supporting the lower mold housing 7 are also fixedly installed on both side walls of the connection port 11. The push components include installation ports 24 opened at the bottom of the lower mold housing 7. An L-shaped push block 22 is slidably arranged in the installation port 24. The L-shaped push block 22 is fixedly connected to the mold plate 25. A return spring 23 is fixedly arranged between the L-shaped push block 22 and the installation port 24. One end of the L-shaped push block 22 located outside the lower mold housing 7 is arc-shaped. A sliding groove 15 is opened at the upper end of the support plate 16. The L-shaped push block 22 is in sliding contact with the sliding groove 15 and is in sliding contact with the lower end of the support plate 16. The lower end of the support plate 16 is used to push the L-shaped push block 22 to move. During the process of transporting the lower mold housing 7, when the lower mold housing 7 opens downward, the lower end of the support plate 16 squeezes the L-shaped push block 22 to push the mold plate 25 and the embossing mold 26 to be misaligned, which is convenient for the parts after stamping to be separated from the embossing mold 26 for demolding.

[0020] As a further technical solution of the present invention, an elastic clamping piece 27 is fixedly installed at one end of the clamping block 29 located inside the lower mold housing 7. Buffering is carried out through the elastic clamping piece 27 for clamping and limiting parts of different sizes.

[0021] As a further technical solution of the present invention, a plurality of arc-shaped openings 17 are formed at the lower end of the support plate 16, and the L-shaped push blocks 22 are in sliding contact with the arc-shaped openings 17 (the L-shaped push blocks 22 on the front and rear sides are simultaneously in sliding contact with the two arc-shaped openings 17 synchronously). When the lower die housing 7 opens downward and is being conveyed, through the repeated sliding contact between the L-shaped push blocks 22 and the plane of the lower end of the support plate 16 and the arc-shaped openings 17, rising and falling, the demolding work of the parts is accelerated.

[0022] As a further technical solution of the present invention, a fixed block 18 is fixedly installed at the bottom of the lower die housing 7. A spring rotating shaft 12 is rotatably installed through the fixed block 18. One end of the spring rotating shaft 12 is fixedly installed with an arc-shaped impact block 19, and the other end of the spring rotating shaft 12 is fixedly installed with a gear 21. A plurality of tooth blocks 20 meshing with the gear 21 are fixedly installed on one side of the support plate 16. When the lower die housing 7 opens downward and is being conveyed, it drives the gear 21 to come into contact and mesh with the tooth block 20, controlling the gear 21 to drive the spring rotating shaft 12 to rotate slightly. When rotating, it will drive the arc-shaped impact block 19 to impact the lower die housing 7 for accelerating demolding. After the gear 21 is separated from the tooth block 20, due to the action of the spring rotating shaft 12, it will drive the arc-shaped impact block 19 to reset for the next impact.

[0023] During operation: Start the motor 6 to control the two conveyor belts 9 to work synchronously, convey the lower die housing 7, and when the lower die housing 7 is conveyed directly below the stamping upper die 5, the motor 6 stops working at this time (the conveyor belt 9 does not work during stamping, and an external manipulator can be used to place the lower die housing 7 at another position. A plurality of lower die housings 7 are arranged at equal intervals, so that the feeding position of the manipulator remains unchanged during each stamping); Then start the hydraulic rod 3 to work, control the stamping upper die 5 to move downward to emboss the hardware part (at this time, after the clamping block 29 contacts the limit block 13, it will push the clamping block 29 to move to clamp and limit the hardware part). During stamping, the lower end of the lower die housing 7 contacts the support plate 16, and the L-shaped push block 22 is located in the chute 15; After the embossing is completed, during the process of the hydraulic rod 3 controlling the stamping upper die 5 to move upward, continue to start the motor 6 to work. The conveyor belt 9 can convey another lower die housing 7 directly below the stamping upper die 5, and the stamped part is sent away. Until the opening of the lower die housing 7 faces downward, the part may be demolded and fall off. During subsequent conveyance, the lower end of the support plate 16 will push the L-shaped push block 22 to move, and the L-shaped push block 22 will push the mold plate 25 and the embossing mold 26 to be misaligned, facilitating the separation of the stamped part from the embossing mold 26; When the lower mold housing 7 moves, the L-shaped push blocks 22 on the front and rear sides simultaneously slide in contact with the two arc-shaped openings 17 synchronously. Through the repeated sliding contact between the L-shaped push blocks 22, the plane at the lower end of the support plate 16 and the arc-shaped openings 17, rising and falling in turn, the demolding work of the parts is accelerated. And during the process of the lower mold housing 7 being conveyed, it will drive the gear 21 to contact and engage with the tooth block 20, controlling the gear 21 to drive the spring rotating shaft 12 to rotate slightly. When rotating, it will drive the arc-shaped impact block 19 to impact the lower mold housing 7 for accelerating demolding. After the gear 21 is separated from the tooth block 20, due to the action of the spring rotating shaft 12, it will drive the arc-shaped impact block 19 to reset for the next impact. There is no need to equip with equipment for taking parts, and the stamping work can be continuously cycled, with high work efficiency.

[0024] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, equivalent replacements can be made for its features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic metal stamping die, comprising a stamping workbench (1), characterized in that: A plurality of lower die shells (7) are arranged above the stamping workbench (1); a mounting frame (2) is fixedly mounted on the upper end of the stamping workbench (1); a base (4) is fixedly mounted on one side of the mounting frame (2); a connection port (11) is provided through the upper end of the base (4); a stamping assembly is arranged on the mounting frame (2); a bracket (10) is fixedly mounted on the upper end of the stamping workbench (1); a transmission assembly for controlling the movement of the lower die shell (7) is arranged on the bracket (10); and the lower die shell (7) is fixedly mounted on the upper end of the stamping workbench (1). 7) are provided with clamping assemblies on both sides, and the side walls of the connection port (11) are fixedly installed with limit blocks (13) for controlling the movement of the clamping assemblies. An embossing die (26) is fixedly installed inside the lower die shell (7), and a die plate (25) is slidably provided on the outer side of the embossing die (26). Pushing assemblies for controlling the movement of the die plate (25) are provided on both sides of the lower end of the lower die shell (7), and support plates (16) for supporting the lower die shell (7) are also fixedly installed on the side walls of the connection port (11).

2. The automatic metal stamping die according to claim 1, characterized in that: The transmission components include two groups, each comprising a pulley (8) rotatably connected to a bracket (10), a conveyor belt (9) being sleeved between the two pulleys (8), a motor (6) for controlling the rotation of the pulley (8) being fixedly mounted on one side of the bracket (10), sliding openings (14) being provided on both side walls of the connection port (11), the conveyor belt (9) passing through the sliding opening (14) and in sliding contact therewith, and a plurality of lower mold shells (7) being fixedly mounted between the two conveyor belts (9).

3. The automatic metal stamping die according to claim 2, characterized in that: The clamping assembly comprises placement grooves (30) provided on both sides of the lower mold shell (7), a clamping block (29) is slidably arranged in the placement groove (30), one end of the clamping block (29) is located outside the lower mold shell (7) and is arranged in an arc shape, a telescopic spring (28) is fixedly installed between the clamping block (29) and the placement groove (30), the limit block (13) is in sliding contact with the clamping block (29), and the limit block (13) is used to push the clamping block (29) to move.

4. The automatic metal stamping die according to claim 3, characterized in that: The clamping block (29) is located inside the lower mold shell (7) and has an elastic clamping piece (27) fixedly mounted on one end.

5. The automatic metal stamping die according to claim 4, characterized in that: The pushing assembly comprises a mounting opening (24) formed at the bottom of the lower mold shell (7), an L-shaped pushing block (22) being slidably arranged in the mounting opening (24), the L-shaped pushing block (22) being fixedly connected to the mold plate (25), a return spring (23) being fixedly arranged between the L-shaped pushing block (22) and the mounting opening (24), one end of the L-shaped pushing block (22) being located outside the lower mold shell (7) being arranged in an arc shape, a sliding groove (15) being formed at the upper end of the support plate (16), the L-shaped pushing block (22) being in sliding contact with the sliding groove (15), the L-shaped pushing block (22) being in sliding contact with the lower end of the support plate (16), and the lower end of the support plate (16) being used to push the L-shaped pushing block (22) to move.

6. The automatic metal stamping die according to claim 5, characterized in that: A plurality of arc-shaped openings (17) are formed at the lower end of the support plate (16), and the L-shaped push block (22) is in sliding contact with the arc-shaped openings (17).

7. The automatic metal stamping die according to claim 6, characterized in that: A fixed block (18) is fixedly mounted on the bottom of the lower mold shell (7), a spring shaft (12) is rotatably mounted inside the fixed block (18), an arc-shaped impact block (19) is fixedly mounted on one end of the spring shaft (12), a gear (21) is fixedly mounted on the other end of the spring shaft (12), and a plurality of gear blocks (20) meshing with the gear (21) are fixedly mounted on one side of the support plate (16).

8. The automatic metal stamping die according to claim 7, characterized in that: The punching assembly comprises a hydraulic rod (3) fixedly mounted on a mounting frame (2), and a punching upper die (5) is fixedly mounted on the lower end of the hydraulic rod (3).

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