Arc-shaped workpiece punching machine

Abstract

The utility model relates to the field of punching machinery, and discloses an arc-shaped workpiece punching machine which comprises a machining table, a punching assembly is arranged at the top end of the machining table, a lower die is fixedly connected to the inner bottom face of the machining table, a limiting assembly is arranged in the lower die, and the limiting assembly comprises a motor and a spring. The motor is fixedly connected to the surface of the left side of the lower mold, a U-shaped through groove is formed in the upper surface of the lower mold, a two-way lead screw is rotationally connected to the surface of the inner wall of the right side of the U-shaped through groove, moving plates are in threaded connection with the left end and the right end of the outer side of the two-way lead screw, and supporting elastic pieces are fixedly connected to the top ends of the moving plates. According to the punching machine, the limiting assembly is arranged, plates with different lengths can be clamped and limited by starting the motor before punching, the limiting plate can be prevented from affecting operation of the punching assembly, the application range of the punching machine is widened, and meanwhile the punching assembly can conduct complete punching forming on the plates.

Description

Technical Field

[0001] The utility model relates to the field of stamping machinery, in particular to a stamping machine for arc-shaped workpieces. Background Technique

[0002] Stamping refers to a pressure processing method that applies a force to a material by using a die installed on a press at normal temperature, causing it to separate or plastically deform, so as to obtain the required parts. In the metal processing industry, stamping equipment and dies are mostly used to apply pressure to metal sheet materials, causing the metal sheets to separate or plastically deform, so as to obtain stamped parts with certain shapes, sizes and properties.

[0003] After retrieval, the Chinese patent publication number: CN219817763U discloses a stamping machine, which includes a slide rail, a sliding block, a motor, a driving component, a limiting rod and a clamping component. When a worker needs to clamp the processing material, the motor and the driving component can be used to drive the sliding block to move along the slide rail direction. The sliding block will drive the limiting rod and the clamping component to move, realizing the clamping work of the processing material, so as to accurately control the stamping area.

[0004] However, in the process of stamping the plate by the above stamping machine, in order to prevent the clamping component from hindering the stamping movement of the upper die, the size of the upper die is smaller than that of the plate. As a result, in the process of stamping some arc-shaped workpieces, the upper die cannot completely extrude the plate, and thus the edges of the stamped arc-shaped workpieces may be warped, affecting the processing accuracy. However, if the clamping component is not provided, the plate may shift before stamping, which will also affect the stamping accuracy. Therefore, a stamping machine for arc-shaped workpieces is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a stamping machine for arc-shaped workpieces, aiming to improve the problem that the upper die of the stamping machine in the prior art is hindered by the clamping component and cannot completely stamp and form the plate, resulting in the edges of the plate may be warped.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a stamping machine for arc-shaped workpieces, including a processing table, a stamping component is arranged at the top end of the processing table, a lower die is fixedly connected to the inner bottom surface of the processing table, and a limiting component is arranged inside the lower die. The limiting component includes:

[0007] A motor, the motor is fixedly connected to the left surface of the lower mold. A U-shaped through groove is provided on the upper surface of the lower mold. A bidirectional lead screw is rotatably connected to the right inner wall surface of the U-shaped through groove. Both the left and right ends of the outer side of the bidirectional lead screw are threadedly connected with moving plates. The top ends of the moving plates are fixedly connected with supporting elastic members. The top ends of the supporting elastic members are fixedly connected with supporting blocks. A groove is provided on the upper surface of the supporting block;

[0008] A spring, the spring is fixedly connected to the inner bottom surface of the groove. The top end of the spring is fixedly connected with a limiting plate. An arc-shaped strip is fixedly connected to the surface of the limiting plate close to the center of the lower mold.

[0009] As a further description of the above technical solution:

[0010] A placement groove is provided on the inner bottom surface of the processing table. A collection box is arranged inside the placement groove. A limiting groove is provided on the inner bottom surface of the placement groove. A limiting elastic member is fixedly connected to the rear end of the inner bottom surface of the limiting groove. The top end of the limiting elastic member is fixedly connected with a limiting block.

[0011] As a further description of the above technical solution:

[0012] The right output end of the motor penetrates through the left surface of the lower mold. The right output end of the motor is fixedly connected to the left end of the bidirectional lead screw.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the moving plate fits with the inner wall of the U-shaped through groove. The outer wall of the limiting plate fits with the inner wall of the groove.

[0015] As a further description of the above technical solution:

[0016] The surface of the arc-shaped strip close to the center of the lower mold fits with the surface of the inner side of the groove close to the center of the lower mold.

[0017] As a further description of the above technical solution:

[0018] The upper surface of the supporting block is higher than the upper surface of the lower mold.

[0019] As a further description of the above technical solution:

[0020] The collection box is located directly below the U-shaped through groove. The outer wall of the collection box fits with the inner wall of the placement groove.

[0021] As a further description of the above technical solution:

[0022] The back surface of the limiting block fits with the front side surface of the collection box.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, through the arranged limiting component, the motor can be started before stamping to clamp and limit plates with different lengths, and during the stamping process, the limiting plate can enter the groove for storage, avoiding affecting the operation of the stamping component. Furthermore, the plates can be completely stamped and formed, preventing the edges of the plates from warping. While expanding the applicable range of the stamping machine, the stamping component can completely stamp and form the plates. Through the cooperation of the arranged supporting elastic part and the supporting block, the plates can be lifted upward for a short distance after stamping, preventing the plates from closely adhering to the lower die and affecting the taking of the plates. Through the arranged arc-shaped strip, the friction between the plates and the limiting plate can be reduced, preventing the plates from hindering the downward movement of the limiting plate and thus hindering the operation of the stamping component.

[0025] 2. In the utility model, through the arranged placement groove and the collection box, impurities and debris entering the U-shaped through groove can be collected, preventing the impurities and debris from hindering the operation of the limiting component. At the same time, through the cooperation of the arranged limiting groove, the limiting elastic part and the limiting block, the collection box can be limited, preventing the collection box from shifting during the operation of the stamping machine and affecting the collection effect of the impurities and debris. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the whole of a stamping machine for arc-shaped workpieces proposed by the utility model;

[0027] Figure 2 is a schematic diagram of the inside of the lower die of a stamping machine for arc-shaped workpieces proposed by the utility model;

[0028] Figure 3 is a schematic diagram of the inside of the supporting block of a stamping machine for arc-shaped workpieces proposed by the utility model;

[0029] Figure 4 is a stamping machine for arc-shaped workpieces proposed by the utility model Figure 1 schematic diagram of part A.

[0030] Legend Explanation:

[0031] 1. Processing table; 2. Stamping component; 3. Lower die; 401. Motor; 402. U-shaped through groove; 403. Bidirectional lead screw; 404. Moving plate; 405. Supporting elastic part; 406. Supporting block; 407. Groove; 408. Spring; 409. Limiting plate; 410. Arc-shaped strip; 501. Placement groove; 502. Collection box; 503. Limiting groove; 504. Limiting elastic part; 505. Limiting block. Detailed Embodiment

[0032] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Refer to Figure 1 , an embodiment provided by the present invention: an arc-shaped workpiece stamping machine, including a processing table 1, a stamping assembly 2 is arranged on the top end of the processing table 1. The stamping assembly 2 includes: a hydraulic push rod and an upper die. When the hydraulic push rod is started, it can drive the upper die to move downward. The inner bottom surface of the processing table 1 is fixedly connected with a lower die 3. The center of the upper surface of the lower die 3 is recessed downward. After the plate is placed on the lower die 3, starting the stamping assembly 2 to drive the upper die to move downward can stamp the plate into shape, so that the plate is stamped into an arc-shaped workpiece. A limiting assembly is arranged inside the lower die 3.

[0034] Refer to Figures 1 - 3 , the limiting assembly includes: a motor 401 and a spring 408. The motor 401 is fixedly connected to the left side surface of the lower die 3. A U-shaped through groove 402 is opened on the upper surface of the lower die 3. The right inner wall surface of the U-shaped through groove 402 is rotatably connected with a bidirectional lead screw 403. The right output end of the motor 401 penetrates through the left side surface of the lower die 3, and the right output end of the motor 401 is fixedly connected to the left end of the bidirectional lead screw 403. When the motor 401 is started, it can drive the bidirectional lead screw 403 to rotate. Both the left and right ends of the outer side of the bidirectional lead screw 403 are threadedly connected with a moving plate 404. The outer wall of the moving plate 404 is in mutual fit with the inner wall of the U-shaped through groove 402. The inner wall of the U-shaped through groove 402 can guide and limit the movement of the moving plate 404, so that the moving plate 404 can only perform linear movement in the left and right directions. When the bidirectional lead screw 403 rotates, it can drive the two moving plates 404 to move synchronously in opposite directions.

[0035] A support elastic member 405 is fixedly connected to the top end of the movable plate 404. The top end of the support elastic member 405 is fixedly connected to a support block 406. The upper surface of the support block 406 is higher than the upper surface of the lower die 3. When the movable plate 404 moves, the support block 406 can be driven to move synchronously through the support elastic member 405. When the support block 406 moves downward, it will squeeze the support elastic member 405, causing the support elastic member 405 to compress and generate elastic potential energy. When the squeezing force on the support block 406 disappears, the support block 406 will move upward and reset under the action of the elastic potential energy of the support elastic member 405. A groove 407 is formed on the upper surface of the support block 406. A spring 408 is fixedly connected to the inner bottom surface of the groove 407. The top end of the spring 408 is fixedly connected to a limit plate 409. The outer wall of the limit plate 409 fits with the inner wall of the groove 407. The inner wall of the groove 407 can guide and limit the movement of the limit plate 409, so that the limit plate 409 can only perform linear motion in the up and down directions. Start the motor 401 to drive the two support blocks 406 to approach each other. When the distance between the two support blocks 406 is less than the length of the plate, place the plate above the support blocks 406. Then continue to start the motor 401 to drive the two limit plates 409 to approach each other to clamp and limit the plate, so that before stamping, the plate can be prevented from shifting and affecting the stamping accuracy.

[0036] An arc-shaped strip 410 is fixedly connected to the surface of the limit plate 409 close to the center of the lower die 3. The surface of the arc-shaped strip 410 close to the center of the lower die 3 fits with the surface of the inner side of the groove 407 close to the center of the lower die 3. Can the arc-shaped strip 410 reduce the contact area between the limit plate 409 and the plate, thereby reducing the friction during relative movement and preventing the plate from hindering the downward movement of the limit plate 409 and thus hindering the stamping process. After clamping the plate, the stamping assembly 2 can be started to move downward to stamp the plate. Then the upper die moves downward and will squeeze the limit plate 409, causing the limit plate 409 to move downward, preventing the set limit plate 409 from hindering the operation of the stamping assembly 2, so that the upper die can completely extrude and form the plate, preventing the edges of the plate from warping. At the same time, as the upper die continues to move downward, the plate will be squeezed to fit with the upper surface of the lower die 3. At this time, the support block 406 is squeezed and moves downward to squeeze the support elastic member 405, causing the support elastic member 405 to generate elastic potential energy. When the stamping is completed and the upper die moves upward and resets, the support block 406 will move upward and reset under the action of the elastic potential energy of the support elastic member 405. At this time, the support block 406 will slightly lift the plate upward, preventing the plate from fitting tightly with the lower die 3 and making it difficult to take out.

[0037] Refer to Figures 1 - 4, a placement groove 501 is provided on the inner bottom surface of the processing table 1, and a collection box 502 is arranged inside the placement groove 501. The collection box 502 is located directly below the U-shaped through groove 402. The impurities and debris entering the U-shaped through groove 402 can enter the collection box 502 through the U-shaped through groove 402 for collection, preventing accumulation inside the U-shaped through groove 402 from hindering the rotation of the bidirectional lead screw 403 and the movement of the moving plate 404. The outer wall of the collection box 502 fits closely with the inner wall of the placement groove 501, enabling the collection box 502 to completely collect the debris and impurities passing through the U-shaped through groove 402. A limit groove 503 is provided on the inner bottom surface of the placement groove 501, and a limit elastic member 504 is fixedly connected to the rear end of the inner bottom surface of the limit groove 503. The top end of the limit elastic member 504 is fixedly connected to a limit block 505. The top end of the limit block 505 is arranged in an inclined structure, and the back surface of the limit block 505 fits with the front surface of the collection box 502. When installing the collection box 502, the collection box 502 can be inserted into the placement groove 501 and moved backward. During the movement, the collection box 502 can squeeze the limit block 505 along the inclined surface of the top end of the limit block 505, and compress the limit elastic member 504 to generate elastic potential energy. As the collection box 502 completely enters the placement groove 501, the collection box 502 will release the limit on the limit block 505. At this time, the limit block 505 will bounce upward under the action of the elastic potential energy of the limit elastic member 504 to latch and limit the collection box 502, ensuring the stability of the collection box 502 during operation.

[0038] Working principle: Before stamping the sheet metal, start the motor 401 to drive the two support blocks 406 to approach each other. Then place the sheet metal on the support blocks 406 and continue to start the motor 401 so that the limit plate 409 clamps and limits the sheet metal, ensuring the stability of the sheet metal before stamping and preventing deviation that may affect the stamping accuracy. As the stamping component 2 is started, the upper die moves downward and squeezes the limit plate 409, causing the limit plate 409 to enter the groove 407, enabling complete stamping and forming of the sheet metal. Subsequently, the support block 406 will be squeezed. After stamping, the support block 406 will bounce upward and reset under the action of the elastic potential energy of the support elastic member 405, and lift the sheet metal to prevent the sheet metal from fitting tightly with the lower die 3, making it difficult to take. The impurities and debris entering the U-shaped through groove 402 will enter the collection box 502, preventing accumulation inside the U-shaped through groove 402 from affecting the operation of the limit component. When it is necessary to clean the collection box 502, the limit block 505 can be pressed downward to release the limit on the collection box 502, and then the collection box 502 can be pulled out forward, with simple operation.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An arc-shaped workpiece stamping machine, comprising a processing table (1), a stamping assembly (2) is arranged at the top of the processing table (1), and a lower die (3) is fixedly connected to the inner bottom surface of the processing table (1), characterized in that: A limiting component is arranged inside the lower mold (3), and the limiting component includes: A motor (401), the motor (401) is fixedly connected to the left surface of the lower mold (3). A U-shaped through groove (402) is formed on the upper surface of the lower mold (3). A bidirectional lead screw (403) is rotatably connected to the right inner wall surface of the U-shaped through groove (402). Moving plates (404) are threadedly connected to both the left and right ends of the outer side of the bidirectional lead screw (403). A support elastic member (405) is fixedly connected to the top end of the moving plate (404). A support block (406) is fixedly connected to the top end of the support elastic member (405). A groove (407) is formed on the upper surface of the support block (406); A spring (408), the spring (408) is fixedly connected to the inner bottom surface of the groove (407). A limiting plate (409) is fixedly connected to the top end of the spring (408). An arc-shaped strip (410) is fixedly connected to the side surface of the limiting plate (409) close to the center of the lower mold (3).

2. The punching machine for arc workpieces according to claim 1, characterized in that: A placement groove (501) is formed on the inner bottom surface of the processing table (1). A collection box (502) is arranged inside the placement groove (501). A limiting groove (503) is formed on the inner bottom surface of the placement groove (501). A limiting elastic member (504) is fixedly connected to the rear end of the inner bottom surface of the limiting groove (503). A limiting block (505) is fixedly connected to the top end of the limiting elastic member (504).

3. The punching machine for arc workpieces according to claim 1, characterized in that: The right output end of the motor (401) penetrates through the left surface of the lower mold (3), and the right output end of the motor (401) is fixedly connected to the left end of the bidirectional lead screw (403).

4. An arc-shaped workpiece stamping machine according to claim 1, characterized in that: The outer wall of the moving plate (404) is in mutual contact with the inner wall of the U-shaped through groove (402), and the outer wall of the limiting plate (409) is in mutual contact with the inner wall of the groove (407).

5. The punching machine for arc-shaped workpieces according to claim 1, wherein: The side surface of the arc-shaped strip (410) close to the center of the lower mold (3) is in mutual contact with the side surface of the inner part of the groove (407) close to the center of the lower mold (3).

6. The punching machine for arc-shaped workpieces according to claim 1, characterized in that: The upper surface of the support block (406) is higher than the upper surface of the lower mold (3).

7. An arc-shaped workpiece stamping machine according to claim 2, characterized in that: The collection box (502) is located directly below the U-shaped through groove (402), and the outer wall of the collection box (502) is in mutual contact with the inner wall of the placement groove (501).

8. The punching machine for arc-shaped workpieces according to claim 2, wherein: The rear surface of the limiting block (505) is in mutual contact with the front side surface of the collection box (502).

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