Right-angle stamping device for metal machining

Abstract

The utility model relates to the technical field of right-angle stamping, in particular to a right-angle stamping device for metal processing, which comprises a bottom plate, a lower die arranged above the bottom plate, a clamping mechanism arranged above the lower die, and a stamping mechanism positioned above the clamping mechanism. The stamping device has the beneficial effects that after stamping is completed, a metal workpiece obtained after stamping is completed is pushed outwards through the pushing assembly to be unloaded, then the side walls of the two sides of the metal workpiece are extruded through an auxiliary structure while the metal workpiece is pushed forwards to be unloaded, the metal workpiece is lifted up, the side walls of the metal workpiece are disengaged from being attached to a groove of a lower die, and the stamping quality of the metal workpiece is improved. The friction force between the metal workpiece and the groove of the lower die is changed into rolling friction from sliding friction, so that the friction force between the metal workpiece and the groove of the lower die is reduced, certain abrasion to the side wall of the metal workpiece is reduced, the production quality of the metal workpiece is improved, and the service life of the metal workpiece is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of right-angle punching, in particular to a right-angle punching device for metal processing. Background Art

[0002] Nowadays, the demand for metal products is increasing, and the processing and production of metal products has also received attention. When processing metal products, they need to be stamped using a stamping device.

[0003] By comparing patent announcement number CN221086827U, a right-angle stamping device for metal processing, in this scheme, after the metal workpiece is stamped, the metal workpiece in the stamping groove is pushed outward for unloading by a discharge plate. However, when the discharge plate pushes the metal workpiece, a certain friction will be formed between the metal workpiece and the inner wall of the stamping groove. The friction force generated may cause a certain wear on the side wall of the metal workpiece, which may reduce the production quality of the metal workpiece and affect the subsequent normal use. There are certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a right-angle punching device for metal processing in order to solve the above-mentioned problem.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A right-angle punching device for metal processing comprises a bottom plate, a lower die is arranged above the bottom plate, a clamping mechanism is arranged above the lower die, and a punching mechanism for punching a workpiece at a right angle, the punching mechanism is located above the clamping mechanism;

[0007] The punching mechanism includes a punching assembly for punching the workpiece and a pushing assembly for pushing the workpiece after punching;

[0008] The pushing assembly includes a connecting frame arranged at the rear end of the base plate, a lower oil cylinder is arranged at the lower end of the connecting frame, a lower piston plate is slidingly sealed in the lower oil cylinder, a lower push rod is fixed at the front end of the lower piston plate, a push plate is fixed at the front end of the lower push rod, the push plate fits in the groove of the lower mold, a return spring is connected between the lower piston plate and the lower oil cylinder, an oil chamber is arranged at the front end of the lower oil cylinder, and the two are connected, a driving structure is arranged above the lower oil cylinder, the driving structure is used to drive the push plate to move forward after stamping to push the workpiece to unload, and auxiliary structures are arranged at the front and rear ends of the lower mold, the auxiliary structures are used to reduce the friction between the workpiece and the lower mold when the workpiece is unloaded.

[0009] Preferably, the auxiliary structure includes two groups of fixed bins fixedly arranged at the front and rear ends of the lower die. Each group has two symmetrical fixed bins. The side of the fixed bin close to the groove of the lower die is flush with the inclined surface of the groove of the lower die. A pushing block is slidably installed in the fixed bin. A ball is rotatably installed at one end of the pushing block close to the groove of the lower die. Fixed plates are fixedly arranged on one side of the upper end of the lower die close to the fixed bin. An electric push rod is arranged between the fixed plate and the pushing block.

[0010] Preferably, the driving structure includes an upper oil cylinder arranged on the side wall of the connecting frame. An upper piston plate is hermetically slidably installed in the upper oil cylinder. A connecting plate is arranged above the upper oil cylinder. The connecting plate is in an inverted L shape. An upper push rod is fixed between the connecting plate and the upper piston plate. The inside of the upper oil cylinder is filled with hydraulic oil. A connecting oil pipe is connected between the upper oil cylinder and the oil cavity.

[0011] Preferably, the stamping assembly includes a cylinder arranged at the upper end of the connecting frame. The telescopic end of the cylinder is fixed with an upper die. The connecting plate is fixed to the rear end of the upper die.

[0012] Preferably, the clamping mechanism includes two symmetrical slide rails fixedly arranged at the upper end of the lower die. A slider is slidably installed in the slide rail. A lead screw is rotatably installed in the slide rail. The slider is threadedly connected to the lead screw. A limiting plate is fixed to the upper end of the slider. The limiting plates are arranged front and rear.

[0013] Preferably, a proximity switch is arranged at the rear end of the lower die, close to the groove of the lower die. A wheel disc is fixed to one end of the lead screw away from the limiting plate.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] The metal workpiece is subjected to right-angle stamping by the stamping assembly. After stamping, the stamped metal workpiece is pushed outwards for unloading by the material pushing assembly. Furthermore, while the metal workpiece is being pushed forward for unloading, the auxiliary structure squeezes the two side walls of the metal workpiece, lifts the metal workpiece upwards, so that the side wall of the metal workpiece is separated from the fit with the groove of the lower die, and the frictional force between the metal workpiece and the groove of the lower die is changed from sliding friction to rolling friction, thereby reducing the frictional force between the metal workpiece and the groove of the lower die, reducing certain wear on the side wall of the metal workpiece, improving the production quality of the metal workpiece, and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1It is a three-dimensional view of a right-angle stamping device for metal processing according to the present utility model;

[0018] Figure 2 It is a structural sectional view of the interior of a right-angle stamping device for metal processing according to the present utility model;

[0019] Figure 3 It is a schematic structural view above the lower die of a right-angle stamping device for metal processing according to the present utility model;

[0020] Figure 4 It is a structural sectional view of the interior of the fixed bin of a right-angle stamping device for metal processing according to the present utility model.

[0021] The description of the reference numerals is as follows:

[0022] 100, base plate; 200, lower die; 301, cylinder; 302, upper die; 303, connecting plate; 304, upper push rod; 305, upper oil cylinder; 306, lower oil cylinder; 307, lower push rod; 308, push plate; 309, proximity switch; 310, electric push rod; 311, fixed bin; 312, push block; 313, ball; 314, fixing plate; 315, oil cavity; 401, slide rail; 402, lead screw; 403, slider; 404, limiting plate; 405, wheel disc. Detailed implementation manners

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The present utility model will be further described below with reference to the drawings:

[0025] As Figures 1-4 shown, a right-angle stamping device for metal processing includes a base plate 100 and a clamping mechanism for clamping and fixing workpieces. A lower die 200 is arranged above the base plate 100, and the clamping mechanism is located above the lower die 200. It further includes a stamping mechanism for performing right-angle stamping on workpieces, and the stamping mechanism is located above the clamping mechanism.

[0026] In this embodiment: The clamping mechanism includes two symmetrically arranged slide rails 401 fixedly provided at the upper end of the lower die 200. A slider 403 is slidably installed in the slide rail 401. A lead screw 402 is rotatably installed in the slide rail 401. The slider 403 is threadedly connected to the lead screw 402. A limit plate 404 is fixed to the upper end of the slider 403. The limit plates 404 are arranged front and back. A wheel disc 405 is fixed to one end of the lead screw 402 away from the limit plate 404. Place the metal workpiece to be processed on the lower die 200, rotate the two wheel discs 405 to drive the two lead screws 402 to rotate, drive the two sliders 403 to move, and drive the two limit plates 404 to clamp and limit the two sides of the metal workpiece, reducing the movement of the metal workpiece during stamping.

[0027] In this embodiment: The stamping mechanism includes a stamping component for stamping the workpiece and a material pushing component for pushing the material after the workpiece is stamped.

[0028] The stamping component includes a connecting frame arranged above the lower die 200. A cylinder 301 is arranged at the upper end of the connecting frame. The telescopic end of the cylinder 301 is fixed with an upper die 302.

[0029] The material pushing component includes a lower oil cylinder 306 arranged at the lower end of the connecting frame. A lower piston plate is slidably sealed in the lower oil cylinder 306. A lower push rod 307 is fixed to the front end of the lower piston plate. A push plate 308 is fixed to the front end of the lower push rod 307. The push plate 308 fits with the groove of the lower die 200. A return spring is connected between the lower piston plate and the lower oil cylinder 306. An oil cavity 315 is provided at the front end of the lower oil cylinder 306 and is interconnected. A driving structure is arranged between the lower oil cylinder 306 and the upper die 302. The driving structure is used to drive the push plate 308 to move back and forth when the upper die 302 moves up and down. Auxiliary structures are arranged at the front and rear ends of the lower die 200. The auxiliary structures are used to reduce the friction between the workpiece and the lower die 200 when the workpiece is discharged.

[0030] The auxiliary structure includes two groups of fixed bins 311 fixedly arranged at the front and rear ends of the lower die 200. Each group has two symmetric fixed bins 311. The side of the fixed bin 311 close to the groove of the lower die 200 is flush with the inclined surface of the groove of the lower die 200. A push block 312 is slidably installed in the fixed bin 311. A ball 313 is rotatably installed at one end of the push block 312 close to the groove of the lower die 200. Fixed plates 314 are fixed on one side of the upper end of the lower die 200 close to the fixed bin 311. An electric push rod 310 is arranged between the fixed plate 314 and the push block 312.

[0031] A proximity switch 309 is arranged at the rear end of the lower die 200 for detecting the position of the push plate 308. When the push plate 308 leaves the detection area of the proximity switch 309, it drives the electric push rod 310 to push the push block 312 towards the workpiece, and uses the ball 313 at the end of the push block 312 to lift the workpiece upwards. The proximity switch 309 is close to the groove of the lower die 200.

[0032] The driving structure includes an upper oil cylinder 305 arranged on the side wall of the connecting frame. An upper piston plate is sealed and slidable in the upper oil cylinder 305. A connecting plate 303 is fixedly installed at the rear end of the upper die 302. The connecting plate 303 is in an inverted L shape. An upper push rod 304 is fixed between the connecting plate 303 and the upper piston plate. The interior of the upper oil cylinder 305 is filled with hydraulic oil. A connecting oil pipe is connected between the upper oil cylinder 305 and the oil cavity 315. The metal workpiece is subjected to right-angle stamping by the stamping assembly. After stamping, the pushed component is used to push the stamped metal workpiece outwards for unloading. Furthermore, while pushing the metal workpiece forward for unloading, the auxiliary structure is used to mutually extrude the two side walls of the metal workpiece, lift the metal workpiece upwards, and separate the side wall of the metal workpiece from the fitting of the groove of the lower die 200, so that the frictional force between the metal workpiece and the groove of the lower die 200 changes from sliding friction to rolling friction, thereby reducing the frictional force between the metal workpiece and the groove of the lower die 200, reducing certain wear on the side wall of the metal workpiece, improving the production quality of the metal workpiece, and extending the service life.

[0033] Working principle: First, place the metal workpiece to be processed on the lower die 200. Rotate the two turntables 405 to drive the two lead screws 402 to rotate, drive the two sliders 403 to move, and drive the two limit plates 404 to clamp and limit the two sides of the metal workpiece, reducing the movement of the metal workpiece during stamping.

[0034] After the metal workpiece is clamped, drive the air cylinder 301 to drive the upper die 302 to move downwards, drive the connecting plate 303 to move downwards, and then drive the upper push rod 304 to move downwards in the upper oil cylinder 305, drive the upper piston plate in the upper oil cylinder 305 to move downwards, discharge the hydraulic oil in the upper oil cylinder 305 into the oil cavity 315 through the connecting oil pipe. Furthermore, the hydraulic oil in the oil cavity 315 pushes the lower piston plate in the lower oil cylinder 306 to move backwards in the lower oil cylinder 306, and then drive the lower push rod 307 to move backwards, drive the push plate 308 at the front end of the lower push rod 307 to move backwards, and leave the groove of the lower die 200. Subsequently, the upper die 302 performs right-angle stamping on the metal workpiece on the lower die 200.

[0035] After stamping, the driving cylinder 301 drives the upper die 302 to move upward. Then, the upper push rod 304 drives the upper piston plate to move upward, and further discharges the hydraulic oil in the oil chamber 315 into the upper oil cylinder 305 again through the connecting oil pipe. By the action of the return spring, the lower piston plate is driven to reset forward, driving the lower push rod 307 to move forward, and driving the push plate 308 to move forward to push the metal workpiece in the groove of the lower die 200. When the push plate 308 leaves the detection area of the proximity switch 309, the driving electric push rod 310 pushes the push block 312 in the fixed bin 311 to move towards the side wall of the metal workpiece. The balls 313 at the ends of the two push blocks 312 are used to squeeze the two side walls of the metal workpiece against each other, lifting the metal workpiece upward, so that the side wall of the metal workpiece is separated from the fitting of the groove of the lower die 200, changing the frictional force between the metal workpiece and the groove of the lower die 200 from sliding friction to rolling friction. Then, with the push of the push plate 308, the metal workpiece is pushed forward for blanking, thereby reducing the frictional force between the metal workpiece and the groove of the lower die 200, reducing certain wear on the side wall of the metal workpiece, improving the production quality of the metal workpiece, and increasing the service life.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A right-angle punching device for metal processing, comprising a base plate (100), a lower die (200) being arranged above the base plate (100), and a clamping mechanism being arranged above the lower die (200), characterized in that: Also included is a punching mechanism for punching the workpiece at a right angle, the punching mechanism being located above the clamping mechanism; The punching mechanism includes a punching assembly for punching the workpiece and a pushing assembly for pushing the workpiece after punching; The push assembly comprises a connecting frame arranged at the rear end of the base plate (100), a lower oil cylinder (306) is arranged at the lower end of the connecting frame, a lower piston plate is slidably sealed in the lower oil cylinder (306), a lower push rod (307) is fixed at the front end of the lower piston plate, a push plate (308) is fixed at the front end of the lower push rod (307), the push plate (308) is fitted with a groove of the lower mold (200), a return spring is connected between the lower piston plate and the lower oil cylinder (306), an oil chamber (315) is arranged at the front end of the lower oil cylinder (306), and the two chambers are connected to each other, a driving structure is arranged above the lower oil cylinder (306), and the driving structure is used to drive the push plate (308) to move forward to push the workpiece to unload after stamping, and auxiliary structures are arranged at the front and rear ends of the lower mold (200), and the auxiliary structures are used to reduce the friction between the workpiece and the lower mold (200) when unloading.

2. A right-angle punching device for metal processing according to claim 1, characterized in that: The auxiliary structure comprises two groups of fixed bins (311) fixedly arranged at the front and rear ends of the lower mold (200), each group being provided with two symmetrical fixed bins (311), one side of the fixed bin (311) close to the groove of the lower mold (200) being flush with the inclined surface of the groove of the lower mold (200), a push block (312) being slidably installed in the fixed bin (311), a ball bearing (313) being rotatably installed at one end of the push block (312) close to the groove of the lower mold (200), a fixed plate (314) being fixed at one side of the upper end of the lower mold (200) close to the fixed bin (311), and an electric push rod (310) being arranged between the fixed plate (314) and the push block (312).

3. A right-angle punching device for metal processing according to claim 2, characterized in that: The driving structure comprises an upper oil cylinder (305) arranged on the side wall of the connecting frame, an upper piston plate is sealed and slidably provided inside the upper oil cylinder (305), a connecting plate (303) is arranged above the upper oil cylinder (305), the connecting plate (303) is in an inverted L shape, an upper push rod (304) is fixed between the connecting plate (303) and the upper piston plate, the upper oil cylinder (305) is filled with hydraulic oil, and an oil pipe is connected between the upper oil cylinder (305) and the oil chamber (315).

4. A right-angle punching device for metal processing according to claim 3, characterized in that: The punching assembly comprises a cylinder (301) arranged at the upper end of the connecting frame, an upper die (302) is fixed to the telescopic end of the cylinder (301), and the connecting plate (303) is fixed to the rear end of the upper die (302).

5. A right-angle punching device for metal processing according to claim 4, characterized in that: The clamping mechanism comprises two slide rails (401) fixedly arranged symmetrically on the upper end of the lower mold (200), a slider (403) is slidably installed in the slide rail (401), a lead screw (402) is rotatably installed in the slide rail (401), the slider (403) is threadedly connected to the lead screw (402), and a limit plate (404) is fixed on the upper end of the slider (403), and the limit plate (404) is arranged front and back.

6. A right-angle punching device for metal processing according to claim 5, characterized in that: A proximity switch (309) is provided at the rear end of the lower mold (200), and the proximity switch (309) is close to the groove of the lower mold (200). A wheel disc (405) is fixed to one end of the lead screw (402) away from the limiting plate (404).

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