Automobile stamping die with positioning mechanism

Abstract

The utility model belongs to the technical field of automobile stamping die, disclose a kind of automobile stamping die with positioning mechanism, including stamping processing platform, the upper surface of stamping processing platform is equipped with inner slot, the inner wall of inner slot is rotatably connected with rotary table, the bottom of stamping processing platform is provided with the drive mechanism for driving rotary table, by setting rotary table in the inner slot of stamping processing platform, at least two lower moulds are installed on rotary table, servo motor is switched position by drive shaft driving rotary table, when one lower mould stamping, the remaining can synchronous process blank placement or forming piece take out, shorten stamping vacuum period to promote efficiency, at the same time, the calibration column of lower mould, guide cone and the sliding connecting plate of upper mould, shell, slide plate limiting groove cooperation, offset the tiny error of drive mechanism, ensure accurate clamping, solve the problem of unqualified stamping part when continuously using upper mould to stamp the blank to be processed in different lower moulds.

Description

Technical Field

[0001] This utility model relates to the field of automotive stamping die technology, and in particular to an automotive stamping die with a positioning mechanism. Background Technology

[0002] In a narrow sense, automotive molds are the general term for molds used to stamp all the stamped parts on a car body, also known as automotive body stamping molds. Many parts on a car are made by stamping molds. Stamping molds are a special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products), and are called cold stamping molds (commonly known as cold stamping dies).

[0003] In existing technologies, stamping dies for stamping automotive parts mainly involve the upper and lower dies closing to stamp the sheet metal. During the stamping process, it is impossible to pre-place or remove the sheet metal from the lower die, resulting in a long stamping vacuum period and low efficiency. Some methods use a fixed upper die and a moving lower die to solve this problem. However, regardless of whether a lateral or rotary drive is used, small errors generated by the PLC-controlled driver can lead to defective stamped parts. How to ensure stamping efficiency while avoiding stamping errors is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing technologies that cannot simultaneously perform blank preparation and part removal during the stamping process to shorten the stamping vacuum period and improve efficiency, and cannot eliminate minor errors in the drive mechanism to avoid defective stamped parts. Therefore, this invention proposes an automotive stamping die with a positioning mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automotive stamping die with a positioning mechanism includes a stamping table. An inner slot is formed on the upper surface of the stamping table, and a turntable is rotatably connected to the inner wall of the inner slot. A drive mechanism for driving the turntable is provided on the bottom surface of the stamping table. At least two lower dies are mounted on the upper surface of the turntable, and a guide mechanism is provided on the exterior of each lower die. A support frame is fixedly connected to the upper surface of the stamping table, and an electric push rod is installed inside the support frame. An upper die is located below the electric push rod, and a calibration mechanism is provided on the exterior of the upper die.

[0007] Preferably, the driving mechanism includes a servo motor, which is mounted on the bottom surface of the stamping table. The output end of the servo motor is fixedly connected to a drive shaft, and the output end of the drive shaft is fixedly connected to the turntable.

[0008] Preferably, the guiding mechanism includes two outer extension plates, the outer surfaces of the two outer extension plates are fixedly connected to the lower mold, and the upper surfaces of the two outer extension plates are fixedly connected to calibration columns.

[0009] Preferably, guide cones are fixedly connected to the upper surfaces of both calibration columns.

[0010] Preferably, the calibration mechanism includes a sliding connecting plate and a housing. The bottom surface of the housing is fixedly connected to the upper mold. The interior of the housing has interconnected sliding plate limiting grooves and through holes. The upper surface of the sliding connecting plate is fixedly connected to the output end of the electric push rod. The outer surface of the sliding connecting plate is in contact with the sliding plate limiting grooves and the upper mold.

[0011] Preferably, two calibration blocks are fixedly connected to the outer surface of the upper mold, and each of the two calibration blocks has a calibration through hole inside.

[0012] Preferably, the bottom surface of the stamping table is fixedly connected to two support plates, and the upper surface of the two support plates is provided with a placement groove, and a storage frame is placed inside the two placement grooves.

[0013] Compared with the prior art, the present invention provides an automotive stamping die with a positioning mechanism, which has the following advantages:

[0014] 1. This utility model sets a turntable in the inner slot of the stamping table, and installs at least two lower dies on the turntable. The servo motor drives the turntable to switch positions through the drive shaft, so that when one lower die is stamping, the others can simultaneously place the blank to be processed or take out the formed parts, shortening the stamping vacuum period to improve efficiency. At the same time, the calibration column and guide cone of the lower die cooperate with the sliding connecting plate, sleeve and slide plate limiting groove of the upper die to offset the small errors of the drive mechanism, ensure accurate mold closing, and solve the problem of unqualified stamped parts when the upper die is used to stamp blanks in different lower dies continuously.

[0015] 2. This utility model uses a tray and a placement slot on the bottom surface of the stamping table to position and store blanks and formed parts for classified storage, reducing the time spent on material handling and thus providing stable support for continuous stamping operations and improving the overall processing smoothness. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an exploded structural diagram of the stamping table, servo motor, and turntable of this utility model;

[0018] Figure 3 This is an internal structural diagram of the lower mold, support frame, and calibration block of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the sliding connecting plate and the housing of this utility model.

[0020] In the picture:

[0021] 1. Stamping table; 2. Internal slot; 3. Servo motor; 4. Drive shaft; 5. Turntable; 6. Lower die; 7. Calibration column; 8. Guide cone; 9. Support frame; 10. Electric push rod; 11. Sliding connecting plate; 12. Housing; 13. Slide plate limiting groove; 14. Upper die; 15. Calibration block; 16. Calibration through hole; 17. Outer extension plate; 18. Support plate; 19. Placement slot; 20. Storage frame; 21. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 An automotive stamping die with a positioning mechanism includes a stamping table 1. An inner slot 2 is provided on the upper surface of the stamping table 1. A turntable 5 is rotatably connected to the inner wall of the inner slot 2. The inner slot 2 provides rotation space for the turntable 5, ensuring that the turntable 5 operates smoothly.

[0024] The bottom surface of the stamping table 1 is provided with a drive mechanism for driving the turntable 5. The drive mechanism includes a servo motor 3, which is installed on the bottom surface of the stamping table 1. The output end of the servo motor 3 is fixedly connected to a drive shaft 4, and the output end of the drive shaft 4 is fixedly connected to the turntable 5. The servo motor 3 is controlled by a PLC and transmits force through the drive shaft 4, so that the start and stop of the turntable 5 are controllable.

[0025] At least two lower molds 6 are mounted on the upper surface of the turntable 5. Each lower mold 6 is provided with a guide mechanism on its exterior. The guide mechanism includes two outer extension plates 17. The outer surfaces of the two outer extension plates 17 are fixedly connected to the lower mold 6. The upper surfaces of the two outer extension plates 17 are fixedly connected to calibration columns 7. The turntable 5 drives the lower mold 6 to switch positions, and the outer extension plates 17 provide stable support for the calibration columns 7.

[0026] Guide cones 8 are fixedly connected to the upper surfaces of both calibration columns 7, such as... Figure 3 As shown, the guide cone 8 uses the cone-shaped structure to assist the calibration column 7 in performing initial calibration with the upper mold 14, thereby expanding the tolerable range of initial position deviation.

[0027] A support frame 9 is fixedly connected to the upper surface of the stamping table 1. An electric push rod 10 is installed inside the support frame 9. An upper mold 14 is set below the electric push rod 10. The support frame 9 provides a mounting base for the electric push rod 10. Figure 1 It can be seen that there are reinforcing plates added by diagonal lines to ensure the stability of the upper die 14 under stamping force.

[0028] The upper mold 14 is equipped with a calibration mechanism, which includes a sliding connecting plate 11 and a housing 12. The bottom surface of the housing 12 is fixedly connected to the upper mold 14. The housing 12 has interconnected sliding plate limiting grooves 13 and through holes 21. The upper surface of the sliding connecting plate 11 is fixedly connected to the output end of the electric push rod 10. The outer surface of the sliding connecting plate 11 is in contact with the sliding plate limiting groove 13 and the upper mold 14. The sliding plate limiting groove 13 prevents the sliding connecting plate 11 from moving up and down. The through hole 21 facilitates the connection and assembly of the electric push rod 10 and the sliding connecting plate 11, and can avoid affecting the displacement of the sliding connecting plate 11. This allows the upper mold 14 to compensate for positional deviations through micro-motion, thereby improving calibration accuracy. The front-to-back length and left-to-right width of the sliding plate limiting groove 13 are both longer than those of the sliding connecting plate 11, and the front-to-back length and left-to-right width of the through hole 21 are both shorter than those of the sliding connecting plate 11, preventing the sliding connecting plate 11 from disengaging from the limiting position of the two.

[0029] Two calibration blocks 15 are fixedly connected to the outer surface of the upper mold 14. The two calibration blocks 15 are symmetrically distributed on both sides of the upper mold 14. Their fixed connection with the upper mold 14 can ensure structural stability. Each of the two calibration blocks 15 has a calibration through hole 16 inside. The diameter of the calibration through hole 16 is adapted to the outer diameter of the calibration post 7 of the lower mold 6. By cooperating with the guide cone 8 and the calibration post 7, the upper mold 14 and the lower mold 6 can be accurately aligned.

[0030] Two trays 18 are fixedly connected to the bottom surface of the stamping table 1. The upper surface of the two trays 18 is provided with a placement groove 19. A storage frame 20 is placed inside the two placement grooves 19. One is used to store the blank to be processed, and the other is used to store the stamped parts. The storage frame 20 stores materials in categories, reduces the time spent on picking and putting, and improves the continuity of operation.

[0031] Working principle: A turntable 5 is rotatably installed in the inner slot 2 of the stamping table 1. Among the lower dies 6 on the upper surface of the turntable 5, at least one is in the position to be stamped, that is, directly below the upper die 14, and the rest are in the position to wait for material or to pick up the part. The tray 18 on the bottom surface of the stamping table 1 holds the storage frame 20 through the placement slot 19 for temporarily storing the formed parts and the blanks to be processed. The operator or the robotic arm can put the blanks to be processed into the lower die 6 in the position to wait for material.

[0032] The servo motor 3 on the bottom of the stamping table 1 is started. Its output end drives the turntable 5 to rotate in the inner slot 2 through the drive shaft 4. After the lower mold 6 containing the blank to be processed is moved to the preset position directly below the upper mold 14, the servo motor 3 stops working.

[0033] The electric push rod 10 installed inside the support frame 9 is activated, and its output end pushes the sliding connecting plate 11 to move down. During the downward movement, the calibration through hole 16 opened in the calibration block 15 first contacts the guide cone 8 corresponding to the lower mold 6. Under the guidance of the guide cone 8, the calibration through hole 16 gradually fits into the calibration column 7, so that the upper mold 14 and the lower mold 6 are accurately aligned. During this process, the sliding connecting plate 11 can be displaced inside the sliding plate limiting groove 13, so that it can offset the position deviation of the lower mold 6 caused by the small error of the servo motor 3 when the turntable 5 rotates.

[0034] After calibration, the electric push rod 10 continues to drive the upper mold 14 to move down and close with the lower mold 6 to stamp the blank to be processed; after stamping, the electric push rod 10 drives the upper mold 14 to move up and reset, and the calibration through hole 16 separates from the calibration column 7 and the guide cone 8.

[0035] Servo motor 3 starts again, and the turntable 5 moves the lower die 6 that has been stamped away from the upper die 14. At the same time, the next lower die 6 containing the blank to be processed is moved to the stamping position. During this period, the operator takes out the formed part from the lower die 6 that has been moved away and puts it into one of the storage boxes 20. At the same time, the blank to be processed is placed back in the lower die 6. The above steps are repeated to achieve continuous stamping operation.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automotive stamping die with a positioning mechanism, comprising a stamping table (1), characterized in that: The upper surface of the stamping table (1) is provided with an inner slot (2), and the inner wall of the inner slot (2) is rotatably connected to a turntable (5). The bottom surface of the stamping table (1) is provided with a driving mechanism for driving the turntable (5). At least two lower dies (6) are installed on the upper surface of the turntable (5). Each lower die (6) is provided with a guide mechanism on its exterior. A support frame (9) is fixedly connected to the upper surface of the stamping table (1). An electric push rod (10) is installed inside the support frame (9). An upper die (14) is provided below the electric push rod (10). A calibration mechanism is provided on the exterior of the upper die (14).

2. The automotive stamping die with a positioning mechanism according to claim 1, characterized in that, The driving mechanism includes a servo motor (3), which is mounted on the bottom surface of the stamping table (1). The output end of the servo motor (3) is fixedly connected to a drive shaft (4), and the output end of the drive shaft (4) is fixedly connected to a turntable (5).

3. The automotive stamping die with a positioning mechanism according to claim 1, characterized in that, The guiding mechanism includes two outer extension plates (17), the outer surfaces of the two outer extension plates (17) are fixedly connected to the lower mold (6), and the upper surfaces of the two outer extension plates (17) are fixedly connected to calibration columns (7).

4. The automotive stamping die with a positioning mechanism according to claim 3, characterized in that, Guide cones (8) are fixedly connected to the upper surfaces of both calibration columns (7).

5. The automotive stamping die with a positioning mechanism according to claim 1, characterized in that, The calibration mechanism includes a sliding connecting plate (11) and a housing (12). The bottom surface of the housing (12) is fixedly connected to the upper mold (14). The housing (12) has a sliding plate limiting groove (13) and a through hole (21) that are interconnected. The upper surface of the sliding connecting plate (11) is fixedly connected to the output end of the electric push rod (10). The outer surface of the sliding connecting plate (11) is in contact with the sliding plate limiting groove (13) and the upper mold (14).

6. An automotive stamping die with a positioning mechanism according to claim 5, characterized in that, Two calibration blocks (15) are fixedly connected to the outer surface of the upper mold (14), and calibration through holes (16) are opened inside the two calibration blocks (15).

7. The automotive stamping die with a positioning mechanism according to claim 1, characterized in that, The bottom surface of the stamping table (1) is fixedly connected to two trays (18), and the upper surface of the two trays (18) is provided with a placement groove (19), and a storage frame (20) is placed inside the two placement grooves (19).

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