High-precision metal connector punch forming device

Abstract

The invention belongs to the technical field of punch forming, and particularly relates to a high-precision metal connector punch forming device which comprises a machining table, a U-shaped frame is fixed to the middle of the machining table, an air cylinder is installed at the upper end of the U-shaped frame, an output shaft of the air cylinder is connected with a punching head, and a die holder matched with the punching head is installed on the machining table. Feeding mechanisms are arranged on the front side and the rear side in the U-shaped frame; the stamping head driven by the air cylinder is combined with the innovative feeding mechanism, automatic conveying and continuous stamping of metal plates are achieved, the feeding mechanism can automatically adsorb and convey the metal plates in the up-and-down movement process of the stamping head through the design of the chain wheel, the accessory chain and the suction cup, extra power is not needed, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of stamping and forming, and in particular relates to a high-precision metal connector stamping and forming device. Background Art

[0002] Metal connectors are an important part of equipment connection. Metal connectors are produced by stamping. Stamping is a forming method that uses a press and a mold to apply external force to a plate to cause plastic deformation or separation, thereby obtaining a workpiece of the desired shape and size. Metal connectors need to be stamped into a concave shape using a stamping device. However, the prior art requires workers to perform loading and unloading processing, which is time-consuming and labor-intensive and affects work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a high-precision metal connector stamping and forming device to solve the problems raised in the background technology.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A high-precision metal connector stamping and forming device comprises a processing table, a U-shaped frame is fixed in the middle of the processing table, a cylinder is installed on the upper end of the U-shaped frame, the output shaft of the cylinder is connected to a punch head, and the processing table is equipped with a die base matching the punch head;

[0006] A feeding mechanism is provided on both the front and rear sides of the U-shaped frame, and the feeding mechanism includes two sprockets rotatably mounted on the U-shaped frame, the two sprockets are connected by an accessory chain, the accessory chain is connected to a plurality of mounting plates, a sliding rod is slidably provided in the mounting plate, one end of the sliding rod is connected to a suction cup, the other end of the sliding rod is connected to an abutment block, a first spring is provided between the abutment block and the mounting plate, a pushing block located between the two sprockets is fixed to the U-shaped frame, both sides of the pushing block are processed with inclined surfaces, and the abutment block on the lower side abuts against the pushing block;

[0007] A transmission assembly is provided between the sprocket and the punching head.

[0008] The transmission assembly includes a cavity provided on the side wall of the U-shaped frame, a rack is slidably provided in the cavity, the rack is connected to the punch head through a connecting rod, a gear ring meshing with the rack is rotatably installed in the cavity, a rotating shaft located at the center of the gear ring is rotatably installed in the cavity, the gear ring and the rotating shaft are connected through a one-way bearing, a first transmission wheel is connected to the end of the rotating shaft, a second transmission wheel is rotatably installed in the cavity, the first transmission wheel and the second transmission wheel are connected through a transmission belt, and the second transmission wheel is connected to one of the sprockets.

[0009] An air channel is arranged in the slide bar, the lower end of the air channel is communicated with the suction cup, an air hole is opened on one side of the abutment block, the upper end of the air channel is communicated with the air hole, and a blocking block matching the air hole is fixed on the lower side of the push block.

[0010] Rollers are arranged on both the left and right sides of the processing table.

[0011] An L-shaped plate is fixed at the bottom of the processing table, a motor is installed on the lower side of the L-shaped plate, a circular shell is fixed to the output shaft of the motor, the circular shell is connected to the mold base through a connector, and the processing table is provided with a motion groove matching the mold base.

[0012] The connector includes a fixed block fixed to a circular shell, a sleeve is rotatably assembled on the end of the fixed block, the sleeve is connected to the mold base, a rectangular groove is provided in the fixed block, a rectangular block is slidably provided in the rectangular groove, a second spring is provided between the rectangular block and the side wall of the rectangular groove, a circular rod extending into the sleeve is fixed to one side of the rectangular block, a spiral groove is provided on the side wall of the sleeve, a guide block matching the spiral groove is fixed to the circular rod, a top rod extending into the circular shell is fixed to the other side of the rectangular block, a circular table located in the circular shell is fixed to the processing table, the top rod abuts against the side wall of the circular table, and a groove is provided on the front side of the circular table.

[0013] The present invention realizes automatic conveying and continuous stamping of metal sheets by combining a cylinder-driven punching head with an innovative feeding mechanism. The feeding mechanism utilizes the design of sprockets, accessory chains and suction cups, which can automatically absorb and convey metal sheets during the up and down movement of the punching head without the need for additional power, thereby greatly improving production efficiency.

[0014] The present invention realizes the automatic flipping of the die base through the combined design of the circular shell, the connector and the die base driven by the motor. After the stamping is completed, the die base can move along the moving groove to the front side of the processing table and flip 180 degrees, so that the formed workpiece can fall down and be easily taken out. This design not only improves production efficiency, but also reduces the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0016] Figure 1 A schematic diagram of a high-precision metal connector stamping and forming device according to an embodiment of the present invention Figure 1 ;

[0017] Figure 2 The cross-sectional structure of a high-precision metal connector stamping and forming device according to the present invention is shown in FIG. Figure 1 ;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0019] Figure 4 The cross-sectional structure of a high-precision metal connector stamping and forming device according to the present invention is shown in FIG. Figure 2 ;

[0020] Figure 5 for Figure 4 A schematic diagram of the structure enlarged at B in the middle;

[0021] Figure 6 for Figure 4 A schematic diagram of the structure enlarged at C in the middle;

[0022] Figure 7 The cross-sectional structure of a high-precision metal connector stamping and forming device according to the present invention is shown in FIG. Figure 3 ;

[0023] Figure 8 for Figure 7 A schematic diagram of the structure at D in the middle is enlarged;

[0024] Fig. 9 The cross-sectional structure of a high-precision metal connector stamping and forming device according to the present invention is shown in FIG. Figure 4 ;

[0025] Fig.10 for Fig. 9 Enlarged schematic diagram of the structure at E in the middle.

[0026] The main component symbols are described as follows:

[0027] Processing table 1, U-shaped frame 11, cylinder 12, punch head 13, die base 14, sprocket 2, accessory chain 21, mounting plate 22, slide bar 23, airway 231, suction cup 24, abutment block 25, air hole 251, first spring 26, push block 27, blocking block 271, cavity 3, rack 31, connecting rod 32, gear ring 33, rotating shaft 34, one-way bearing 35, first transmission wheel 36, second transmission wheel 37, L-shaped plate 4, motor 41, circular shell 42, connector 43, fixing block 431, sleeve 432, spiral groove 4321, rectangular groove 433, rectangular block 434, second spring 435, circular rod 436, guide block 4361, push rod 437, circular table 438, groove 439, moving groove 44. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-10As shown, a high-precision metal connector stamping and forming device of the present invention comprises a processing table 1, a U-shaped frame 11 is fixed in the middle of the processing table 1, a cylinder 12 is installed on the upper end of the U-shaped frame 11, the output shaft of the cylinder 12 is connected to a punch head 13, and the processing table 1 is installed with a die base 14 matching the punch head 13;

[0030] A feeding mechanism is provided on both the front and rear sides of the U-shaped frame 11. The feeding mechanism includes two sprocket wheels 2 rotatably assembled on the U-shaped frame 11. The two sprocket wheels 2 are connected by an accessory chain 21. The accessory chain 21 is connected to a plurality of mounting plates 22. A slide bar 23 is slidably provided in the mounting plate 22. A suction cup 24 is connected to one end of the slide bar 23. An abutment block 25 is connected to the other end of the slide bar 23. A first spring 26 is provided between the abutment block 25 and the mounting plate 22. A push block 27 located between the two sprocket wheels 2 is fixed to the U-shaped frame 11. Both sides of the push block 27 are processed with inclined surfaces. The lower abutment block 25 abuts against the push block 27.

[0031] A transmission assembly is provided between the sprocket 2 and the punch head 13;

[0032] The transmission assembly includes a cavity 3 provided on the side wall of the U-shaped frame 11, a rack 31 is slidably provided in the cavity 3, the rack 31 is connected to the punch head 13 through a connecting rod 32, a gear ring 33 meshing with the rack 31 is rotatably installed in the cavity 3, a rotating shaft 34 located at the center of the gear ring 33 is rotatably installed in the cavity 3, the gear ring 33 and the rotating shaft 34 are connected by a one-way bearing 35, a first transmission wheel 36 is connected to the end of the rotating shaft 34, a second transmission wheel 37 is rotatably installed in the cavity 3, the first transmission wheel 36 and the second transmission wheel 37 are connected by a transmission belt, and the second transmission wheel 37 is connected to one of the sprockets 2.

[0033] When the cylinder 2 drives the punch head 13 to move downward, the connecting rod 32 drives the rack 31 to move downward, thereby driving the gear ring 33 to rotate. At this time, the outer ring rotation of the one-way bearing 35 will not drive the inner ring and the rotating shaft 34 to rotate, so the accessory chain 21 will not move. When the cylinder 2 drives the punch head 13 to move upward, the connecting rod 32 drives the rack 31 to move upward, so that the gear ring 33 rotates in the opposite direction, and the rotating shaft 34 is driven to rotate synchronously through the one-way bearing 35. The first transmission wheel 36 and the second transmission wheel 37 are driven by the transmission belt, which drives the sprocket 2 to rotate, the accessory chain 21 moves, and drives a plurality of suction cups 24 to move.

[0034] When in use, a metal sheet is placed on the upper side of the processing table 1, and the end of the metal sheet is located at the lower side of the feeding mechanism, so that the suction cup 24 is adsorbed on the metal sheet. When the metal sheet is stamped, the cylinder 2 drives the punch head 13 to reciprocate up and down, and the metal sheet is stamped into the die base 14 to be formed. Whenever the cylinder 2 moves upward, it can drive a number of suction cups 24 to move and transport the metal sheet, so that the metal sheet can be stamped continuously without the need for additional power.

[0035] When the suction cup 24 just moves to the lower side of the accessory chain 21, the abutment block 25 is not in contact with the pushing block 27. Under the elastic force of the first spring 26, the suction cup 24 is above the metal sheet. The suction cup continues to move, and the abutment block 25 will contact the inclined surface of the pushing block 27, pushing the suction cup 24 to move downward, so that the suction cup 24 contacts the metal sheet and the air inside the suction cup 24 is discharged. The suction cup 24 can then tightly adsorb the metal sheet, so that the suction cup 24 can drive the metal sheet to move, thereby realizing automatic transportation of the metal sheet and realizing automated production.

[0036] An air passage 231 is provided in the slide bar 23, the lower end of the air passage 231 is connected to the suction cup 24, an air hole 251 is provided on one side of the abutting block 25, the upper end of the air passage 231 is connected to the air hole 251, and a blocking block 271 matching the air hole 251 is fixed on the lower side of the pushing block 27; when the abutting block 25 contacts the inclined surface of the pushing block 27 and pushes the suction cup 24 downward to contact the metal plate, the air hole 251 is connected to the outside world, and the air inside the suction cup 24 will be discharged from the air hole 251 through the air passage 231. Then the suction cup 24 continues to move, and the front side of the abutment block 25 will be blocked by the blocking block 271, so that the air hole 251 is blocked, and the outside air cannot enter the suction cup 24. The suction cup 24 drives the metal sheet to move. When the abutment block 25 leaves the pushing block 27, the elastic force of the first spring 26 pushes the abutment block 25 to move upward, and the outside air enters the suction cup 24 through the air hole 251, so that when the suction cup 24 moves upward, it will not generate an upward pulling force on the metal sheet and can easily detach from the metal sheet.

[0037] Rollers are arranged on both sides of the processing table 1 to reduce the friction between the metal sheet and the surface of the processing table 1 and facilitate the transportation of the metal sheet.

[0038] An L-shaped plate 4 is fixed at the bottom of the processing table 1, a motor 41 is installed at the lower side of the L-shaped plate 4, a circular shell 42 is fixed to the output shaft of the motor 41, and the circular shell 42 is connected to the mold base 14 through a connector 43. The processing table 1 is provided with a motion slot 44 that matches the mold base 14;

[0039] The connector 43 includes a fixed block 431 fixed to the circular shell 42, and a sleeve 432 is rotatably assembled at the end of the fixed block 431. The sleeve 432 is connected to the mold base 14. A rectangular groove 433 is provided in the fixed block 431, and a rectangular block 434 is slidably provided in the rectangular groove 433. A second spring 435 is provided between the rectangular block 434 and the side wall of the rectangular groove 433. A circular rod 436 extending into the sleeve 432 is fixed to one side of the rectangular block 434, and a spiral groove 4321 is provided on the side wall of the sleeve 432. A guide block 4361 matching the spiral groove 4321 is fixed to the circular rod 436, and a top rod 437 extending into the circular shell 42 is fixed to the other side of the rectangular block 434. A circular table 438 located in the circular shell 42 is fixed to the processing table 1, and the top rod 437 abuts against the side wall of the circular table 438, and a groove 439 is provided on the front side of the circular table 438.

[0040] In the initial state, the die base 14 is located directly below the punch head 13, and the push rod 437 abuts against the side wall of the circular platform 438. At this time, the opening of the die base 14 faces the upper side. When the die base 14 moves to the front side of the processing table 1, the push rod 437 extends into the groove 439 under the elastic force of the second spring 435, and the circular rod 436 slides in the sleeve 432. Then, the guide block 4361 slides in the spiral groove 4321, which will drive the sleeve 432 to rotate, so that the die base 14 is turned 180 degrees, and the opening of the die base 14 faces the lower side.

[0041] When in use, the punch head 13 moves downward to punch the metal sheet into the die base 14 for forming. When the punch head 13 moves upward, the starting motor 41 drives the circular shell 42 to rotate, and drives the die base 14 to move along the moving groove 44 to the front side of the processing table 1. The opening of the die base 14 will face the lower side, and the workpiece formed in the die base 14 will fall downward, making it easy to take the formed workpiece out of the die base 14. This cycle can cooperate with the above-mentioned feeding mechanism to continuously process metal sheets.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A high-precision metal connector stamping and forming device, comprising a processing table, characterized in that: A U-shaped frame is fixed in the middle of the processing table, a cylinder is installed on the upper end of the U-shaped frame, a punch head is connected to the output shaft of the cylinder, and a die base matching the punch head is installed on the processing table; A feeding mechanism is provided on both the front and rear sides of the U-shaped frame, and the feeding mechanism includes two sprockets rotatably mounted on the U-shaped frame, the two sprockets are connected by an accessory chain, the accessory chain is connected to a plurality of mounting plates, a sliding rod is slidably provided in the mounting plate, one end of the sliding rod is connected to a suction cup, the other end of the sliding rod is connected to an abutment block, a first spring is provided between the abutment block and the mounting plate, a pushing block located between the two sprockets is fixed to the U-shaped frame, both sides of the pushing block are processed with inclined surfaces, and the abutment block on the lower side abuts against the pushing block; A transmission assembly is provided between the sprocket and the punching head.

2. A high-precision metal connector stamping and forming device according to claim 1, characterized in that: The transmission assembly includes a cavity provided on the side wall of the U-shaped frame, a rack is slidably provided in the cavity, the rack is connected to the punch head through a connecting rod, a gear ring meshing with the rack is rotatably installed in the cavity, a rotating shaft located at the center of the gear ring is rotatably installed in the cavity, the gear ring and the rotating shaft are connected through a one-way bearing, a first transmission wheel is connected to the end of the rotating shaft, a second transmission wheel is rotatably installed in the cavity, the first transmission wheel and the second transmission wheel are connected through a transmission belt, and the second transmission wheel is connected to one of the sprockets.

3. A high-precision metal connector stamping and forming device according to claim 1, characterized in that: An air channel is arranged in the slide bar, the lower end of the air channel is communicated with the suction cup, an air hole is opened on one side of the abutment block, the upper end of the air channel is communicated with the air hole, and a blocking block matching the air hole is fixed on the lower side of the push block.

4. A high-precision metal connector stamping and forming device according to claim 1, characterized in that: Rollers are arranged on both the left and right sides of the processing table.

5. A high-precision metal connector stamping and forming device according to claim 1, characterized in that: An L-shaped plate is fixed at the bottom of the processing table, a motor is installed on the lower side of the L-shaped plate, a circular shell is fixed to the output shaft of the motor, the circular shell is connected to the mold base through a connector, and the processing table is provided with a motion groove matching the mold base.

6. A high-precision metal connector stamping and forming device according to claim 5, characterized in that: The connector includes a fixed block fixed to a circular shell, a sleeve is rotatably assembled on the end of the fixed block, the sleeve is connected to the mold base, a rectangular groove is provided in the fixed block, a rectangular block is slidably provided in the rectangular groove, a second spring is provided between the rectangular block and the side wall of the rectangular groove, a circular rod extending into the sleeve is fixed to one side of the rectangular block, a spiral groove is provided on the side wall of the sleeve, a guide block matching the spiral groove is fixed to the circular rod, a top rod extending into the circular shell is fixed to the other side of the rectangular block, a circular table located in the circular shell is fixed to the processing table, the top rod abuts against the side wall of the circular table, and a groove is provided on the front side of the circular table.

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