Accurate positioning stamping die structure for automobile production

Abstract

The utility model relates to the field of automobile production, and discloses an accurate positioning stamping die structure for automobile production, which comprises a stamping frame, a pressing component is mounted at the top end in the stamping frame, an upper die is fixedly connected to the bottom end of the pressing component, and a lower die is fixedly connected to the interior of the stamping frame. Limiting rods are fixedly connected to the four corners of the top end of the lower mold correspondingly, the limiting rods are sleeved with buffer springs, connecting rods are fixedly connected to the left side and the right side of the bottom end of the upper mold correspondingly, pushing blocks are fixedly connected to the bottom ends of the connecting rods correspondingly, and sliding bases are fixedly connected to the left side and the right side of the top end of the lower mold correspondingly. And a sliding block is connected into the sliding seat in a sliding manner. According to the utility model, workpieces with different sizes are automatically centered and fixed by using the centered fixing device, so that the stamped workpieces are kept at stable positions and directions during stamping, the working efficiency is improved, and the use flexibility and applicability are improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile production, in particular to a precisely positioned stamping die structure for automobile production. Background Art

[0002] A stamping die is a tool used to perform stamping processing on metal or other materials. Among them, the structure of the precisely positioned stamping die used in automobile production is relatively more complex in structure. Its main features are precise positioning and high processing accuracy, and it is mainly used for stamping workpieces required in automobile production.

[0003] After searching, the existing Chinese patent announcement number is: CN217617099U, a stamping die structure with precise positioning for automobile production, which belongs to the technical field of stamping die structure. This stamping die structure with precise positioning for automobile production includes a frame, a stamping assembly and a positioning assembly. The stamping assembly includes a telescopic part, an upper die, a lower die and a sliding part. The upper part of the telescopic part is fixedly connected to the upper part of the frame, and the output end of the telescopic part is fixedly connected to the upper part of the upper die. One side of the limit plate is slidably connected to the inside of the inclined groove, one end of the return spring is fixedly connected to the limit plate, and the other end of the return spring is fixedly connected to the positioning frame. The lower part of the limit plate extends to the bottom of the lower die. During the entire use process, the upper die is pressed down while positioning the workpiece, thereby ensuring the position of the workpiece during the stamping process, completing the precise positioning of the workpiece, and ensuring the quality of the workpiece stamping.

[0004] In the specific implementation method of the above patent, first, the stamping workpiece is placed on the upper part of the lower die, the motor is started, the threaded rod is driven to rotate, thereby driving the sliding block and the lower die to move, and the workpiece on the upper part of the lower die is transported to the bottom of the upper die, and the telescopic part is started to implement the stamping of the workpiece. At the same time, the upper die drives the positioning frame and the limit plate to press down at the same time. When the bottom of the limit plate is against the upper part of the lower die, the continuous downward pressure of the upper die will drive the limit plate and the sliders arranged on both sides of the limit plate to slide in the inclined groove. The inclined groove drives the movement of the slider, and the slider drives the limit plate to move toward the center position of the upper die. Since the four angles of the upper die are provided with positioning frames and limit plates at the same time, the areas of the four angles of the upper die are simultaneously limited, thereby ensuring the position of the workpiece during the stamping process, completing the precise positioning of the workpiece, and ensuring the quality of the workpiece stamping. However, in the above patent, the workpiece is directly placed on the upper end of the lower die, and the limit plate only limits the workpiece on all sides, and cannot be fixed in the center according to workpieces of different sizes, which will reduce the working efficiency of stamping and reduce the flexibility and applicability of use. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a precisely positioned stamping die structure for automobile production, aiming to improve the problem that the prior art cannot perform centering fixation according to workpieces of different sizes, which will reduce the stamping work efficiency and reduce the flexibility and applicability of use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The cam frame has an angular channel that is adapted to move the push rod upwards to move the push rod downwards, the cam frame having an angular channel that is adapted to move the push rod upwards to move the push rod downwards, the cam frame having an angular channel that is adapted to move the push rod upwards to move the push rod downwards, the cam frame having an angular channel that is adapted to move the push rod upwards to move the push rod downwards, the cam frame having an angular channel that is adapted to move the push rod downwards

[0008] Furthermore, the pressing assembly includes a pressing device, and the pressing device is installed at the inner top end of the punching frame.

[0009] Furthermore, the blanking assembly includes two connecting seats, two blanking strips, two sliding grooves, a long rod, a lifting frame, and an electric push rod. The rear ends of the two connecting seats are fixedly connected to the front side of the lower mold, the outer front ends of the two blanking strips are respectively rotatably connected to the inside of the two connecting seats, the two sliding grooves are respectively opened in the inside of the two blanking strips, the outer side of the long rod is slidably connected to the inside of the two sliding grooves, the left and right ends of the inside of the lifting frame are respectively fixedly connected to the left and right ends of the long rod, and the top end of the electric push rod is fixedly connected to the middle part of the bottom end of the lifting frame.

[0010] Furthermore, the outer side of the upper mold is slidably connected to the inside of the punching frame, and the outer sides of the four limit rods are all slidably connected to the inside of the upper mold.

[0011] Furthermore, the bottom ends of the four buffer springs are respectively fixedly connected to the four corners of the top end of the lower mold, and the top ends of the four buffer springs are respectively fixedly connected to the four corners of the top end of the upper mold.

[0012] Furthermore, the outer side of the pushing block contacts the outer side of the rotating wheel, and the outer side of the supporting rod is slidably connected to the inside of the sliding block.

[0013] Furthermore, the outer side of the support rod is slidably connected to the inside of the sliding seat, and the outer side of the limiting ring is slidably connected to the inside of the sliding block.

[0014] Furthermore, the proximal ends of the two push springs are respectively fixedly connected to the distal ends of the two clamping blocks, and the distal ends of the two push springs are respectively fixedly connected to the proximal ends of the two sliding blocks.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the mutual cooperation of the push block, the rotating wheel, the sliding block and the push spring, it is realized that the workpieces of different sizes are automatically fixed in the center by using the centering fixing device, ensuring that the stamping workpiece maintains a stable position and direction during the stamping process, thereby improving work efficiency and increasing flexibility and applicability of use.

[0017] 2. In the utility model, through the mutual cooperation of the electric push rod, the lifting frame, the long rod and the unloading bar and other structures, the unloading of the punched workpiece is realized through the automatic unloading device, and the punched workpiece can be quickly removed from the punch press, avoiding the workers from manually unloading and reducing the labor intensity of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a precisely positioned stamping die structure for automobile production proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the upper die structure of a precisely positioned stamping die structure for automobile production proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a sliding block of a stamping die structure for precise positioning in automobile production proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of a rotating wheel structure of a precisely positioned stamping die structure for automobile production.

[0022] Legend:

[0023] 1. Punching frame; 2. Lower press; 3. Upper mold; 4. Lower mold; 5. Limit rod; 6. Buffer spring; 7. Connecting rod; 8. Push block; 9. Sliding seat; 10. Sliding block; 11. Rotating wheel; 12. Support rod; 13. Clamp block; 14. Push spring; 15. Limit ring; 16. Connecting seat; 17. Unloading strip; 18. Sliding groove; 19. Long rod; 20. Lifting frame; 21. Electric push rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a precisely positioned stamping die structure for automobile production, including a stamping frame 1. The design of the stamping frame 1 is to facilitate the installation of internal equipment. A lower pressing assembly is installed at the top of the inner part of the stamping frame 1. The bottom end of the lower pressing assembly is fixedly connected to an upper die 3. The upper die 3 is designed to cooperate with a lower die 4 to perform stamping work. The inner part of the stamping frame 1 is fixedly connected to a lower die 4. The top four corners of the lower die 4 are fixedly connected to a limiting rod 5. The limiting rod 5 is designed to limit the upper die 3 and to support the buffer spring 6.

[0026] A buffer spring 6 is sleeved on the outer side of the limiting rod 5. The buffer spring 6 is designed to buffer the upper mold 3. The left and right sides of the bottom end of the upper mold 3 are fixedly connected with connecting rods 7. The connecting rods 7 are designed to connect the push blocks 8. The bottom end of the connecting rod 7 is fixedly connected with the push blocks 8. The push blocks 8 are designed to push the sliding block 10 to slide inside the sliding seat 9 through the rotating wheel 11, and push the clamping block 13 to fix the workpiece to be stamped through the support rod 12 and the push spring 14. The left and right sides of the top of the lower mold 4 are fixedly connected with the sliding seat 9. The sliding seat 9 is designed to facilitate the sliding of the sliding block 10. The sliding seat 9 is slidably connected to the sliding block 10. The sliding block 10 is designed to cooperate with the support rod 12 and the push spring 14 to drive the clamping block 13 to fix the workpiece to be stamped.

[0027] The sliding block 10 is internally rotatably connected to a rotating wheel 11, which is designed to cooperate with the pushing block 8 to push the sliding block 10 to slide inside the sliding seat 9. The sliding seat 9 is internally slidably connected to a support rod 12, and the adjacent ends of the two support rods 12 are fixedly connected to clamping blocks 13, which are designed to clamp and fix the workpiece to be stamped. The outer side of the support rod 12 is provided with a pushing spring 14, which is designed to push the clamping block 13 to fix the workpiece to be stamped. The outer side of the support rod 12 is fixedly connected to a limiting ring 15, which is designed to limit the support rod 12, and the front side of the lower mold 4 is fixedly connected to a blanking assembly.

[0028] like Figure 1 - Figure 3 and Figure 4 As shown, the pressing assembly includes a pressing device 2, which is installed at the internal top of the stamping frame 1. The pressing device 2 is designed to push the upper mold 3 downward to punch the workpiece placed on the lower mold 4. The outer side of the upper mold 3 is slidably connected to the inside of the stamping frame 1. The upper mold 3 is designed to cooperate with the lower mold 4 to perform stamping work. The outer sides of the four limit rods 5 are slidably connected to the inside of the upper mold 3. The limit rods 5 are designed to limit the upper mold 3 and to support the buffer springs 6. The bottom ends of the four buffer springs 6 are respectively fixedly connected to the four corners of the top of the lower mold 4, and the top ends of the four buffer springs 6 are respectively fixedly connected to the four corners of the top of the upper mold 3. The buffer springs 6 are designed to buffer the upper mold 3.

[0029] The outer side of the pushing block 8 contacts the outer side of the rotating wheel 11. The pushing block 8 is designed to push the sliding block 10 to slide inside the sliding seat 9 through the rotating wheel 11, and push the clamping block 13 to fix the workpiece to be stamped through the support rod 12 and the pushing spring 14. The outer side of the support rod 12 is slidably connected to the inside of the sliding block 10. The outer side of the support rod 12 is slidably connected to the inside of the sliding seat 9. The support rod 12 is designed to connect the clamping block 13 and the sliding block 10. The outer side of the limit ring 15 is slidably connected to the inside of the sliding block 10. The limit ring 15 is designed to limit the support rod 12. The proximal ends of the two pushing springs 14 are respectively fixedly connected to the far ends of the two clamping blocks 13. The far ends of the two pushing springs 14 are respectively fixedly connected to the proximal ends of the two sliding blocks 10. The pushing spring 14 is designed to push the clamping block 13 to fix the stamped workpiece.

[0030] like Figure 1 - Figure 2 As shown, the blanking assembly includes two connecting seats 16, two blanking strips 17, two sliding grooves 18, a long rod 19, a lifting frame 20, and an electric push rod 21. The rear ends of the two connecting seats 16 are fixedly connected to the front side of the lower mold 4. The connecting seats 16 are designed to connect the blanking strips 17. The outer front ends of the two blanking strips 17 are respectively rotatably connected to the inside of the two connecting seats 16. The blanking strips 17 are designed to facilitate the blanking of the stamped workpiece. The two sliding grooves 18 are respectively opened in the inside of the two blanking strips 17. The sliding grooves 18 are designed to facilitate the accommodation of the long rods 19.

[0031] The outer side of the long rod 19 is slidably connected to the inside of the two sliding grooves 18. The long rod 19 is designed to unload the workpiece that has been stamped above the lower mold 4 through the cooperation with the lifting frame 20 and the electric push rod 21. The left and right ends of the inside of the lifting frame 20 are respectively fixedly connected to the left and right ends of the long rod 19. The lifting frame 20 is designed to facilitate the fixing of the long rod 19. The top of the electric push rod 21 is fixedly connected to the middle of the bottom end of the lifting frame 20. The electric push rod 21 is designed to lift the unloading bar 17 by pushing the lifting frame 20 and the long rod 19, so that the unloading bar 17 can tilt the workpiece stamped on the lower mold 4 and drop it out, thereby completing the unloading of the stamped workpiece.

[0032] Working principle: When stamping the assembled workpiece of the automobile, the workpiece is placed on the upper end of the lower die 4, the lower press 2 is started, and the upper die 3 is pressed down by the lower press 2, so that the upper die 3 cooperates with the lower die 4 to stamp the workpiece. When stamping, the connecting rod 7 and the push block 8 will descend together with the upper die 3, and the push block 8 will push the sliding block 10 through the pressing wheel 11, and the sliding block 10 will push the clamping block 13 through the support rod 12 and the pushing spring 14 to fix and clamp the stamped workpiece. By using the centering fixing device, workpieces of different sizes are automatically fixed in the center to ensure the stamping workpiece Maintaining a stable position and direction during the stamping process improves work efficiency, increases flexibility and applicability of use, and thus improves the accuracy and consistency of stamping. After completing the stamping, by starting the electric push rod 21, the electric push rod 21 pushes the lifting frame 20 and the long rod 19, thereby lifting the blanking bar 17, allowing the blanking bar 17 to tilt the punched workpiece on the lower mold 4 and drop it out, thereby completing the unloading of the stamped workpiece. The punched workpiece is unloaded by the automatic unloading device, and the punched workpiece can be quickly removed from the punch press, avoiding manual unloading by workers, thereby reducing the labor intensity of workers.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precisely positioned stamping die structure for automobile production, comprising a stamping frame (1), characterized in that: A pressing assembly is installed at the top of the interior of the punching frame (1), and the bottom end of the pressing assembly is fixedly connected to an upper mold (3). A lower mold (4) is fixedly connected to the interior of the punching frame (1). The four corners of the top end of the lower mold (4) are fixedly connected to limiting rods (5), and a buffer spring (6) is sleeved on the outer side of the limiting rod (5). The left and right sides of the bottom end of the upper mold (3) are fixedly connected to connecting rods (7), and the bottom end of the connecting rods (7) is fixedly connected to a pushing block (8). The left and right sides of the top end of the lower mold (4) are fixedly connected to the A sliding seat (9) is fixedly connected, a sliding block (10) is slidably connected inside the sliding seat (9), a rotating wheel (11) is rotatably connected inside the sliding block (10), a support rod (12) is slidably connected inside the sliding seat (9), a clamping block (13) is fixedly connected to the adjacent ends of the two support rods (12), a push spring (14) is sleeved on the outer side of the support rod (12), a limiting ring (15) is fixedly connected to the outer side of the support rod (12), and a blanking assembly is fixedly connected to the front side of the lower mold (4).

2. The precise positioning stamping die structure for automobile production according to claim 1, characterized in that: The pressing assembly comprises a pressing device (2), and the pressing device (2) is installed at the inner top end of the punching frame (1).

3. The precise positioning stamping die structure for automobile production according to claim 1, characterized in that: The blanking assembly comprises two connecting seats (16), two blanking strips (17), two sliding grooves (18), a long rod (19), a lifting frame (20), and an electric push rod (21). The rear ends of the two connecting seats (16) are fixedly connected to the front side of the lower mold (4). The outer front ends of the two blanking strips (17) are respectively rotatably connected to the inside of the two connecting seats (16). The two sliding grooves (18) are respectively opened in the inside of the two blanking strips (17). The outer side of the long rod (19) is slidably connected to the inside of the two sliding grooves (18). The left and right ends of the inside of the lifting frame (20) are respectively fixedly connected to the left and right ends of the long rod (19). The top end of the electric push rod (21) is fixedly connected to the middle part of the bottom end of the lifting frame (20).

4. The precise positioning stamping die structure for automobile production according to claim 1, characterized in that: The outer side of the upper mold (3) is slidably connected to the inside of the punching frame (1), and the outer sides of the four limiting rods (5) are all slidably connected to the inside of the upper mold (3).

5. The precise positioning stamping die structure for automobile production according to claim 1, characterized in that: The bottom ends of the four buffer springs (6) are respectively fixedly connected to the four corners of the top end of the lower mold (4), and the top ends of the four buffer springs (6) are respectively fixedly connected to the four corners of the top end of the upper mold (3).

6. The precise positioning stamping die structure for automobile production according to claim 3, characterized in that: The outer side of the pushing block (8) contacts the outer side of the rotating wheel (11), and the outer side of the supporting rod (12) is slidably connected to the inside of the sliding block (10).

7. The precise positioning stamping die structure for automobile production according to claim 3, characterized in that: The outer side of the support rod (12) is slidably connected to the inside of the sliding seat (9), and the outer side of the limiting ring (15) is slidably connected to the inside of the sliding block (10).

8. The precise positioning stamping die structure for automobile production according to claim 3, characterized in that: The proximal ends of the two push springs (14) are respectively fixedly connected to the distal ends of the two clamping blocks (13), and the distal ends of the two push springs (14) are respectively fixedly connected to the proximal ends of the two sliding blocks (10).

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