A positioning mechanism for an automobile forming stamping part

Abstract

The utility model belongs to the technical field of automobile stamping part, disclose a kind of automobile forming stamping part positioning mechanism, including stamping table and upper die, the upper surface of the stamping table is equipped with lower die, the left and right side of the upper die is respectively fixedly connected with two L-shaped pressure strips, the inner wall of the stamping table is slidably connected with four top arc plates, the outer surface of four top arc plates is fixedly connected with pressure plate, the outer surface of four pressure plates is slidably connected with stamping table, the outer surface of two pressure plates is fixedly connected with first tongue plate, and the to-be-processed slab is enclosed and guided by top arc plate, the position of the to-be-processed slab before stamping is accurately calibrated, L-shaped pressure strip presses pressure plate during stamping, drives top arc plate to move down and is received, keeps the state of being received by second tongue plate and the like limiting mechanism, so that the periphery of forming piece is without protrusion, can be directly taken out, and positioning and taking out are considered, to avoid collision damage.

Description

Technical Field

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

[0002] Automotive stamping parts, simply put, are metal stamping products used to assemble various parts of a car. In automobile manufacturing, these stamping parts are generally formed by the cooperation of upper and lower dies. During the stamping process of automotive metal parts, positioning mechanisms are required to position the stamped metal parts.

[0003] Currently, in common positioning mechanisms for automotive stamping parts, the lower die has a protruding forming part, and the upper die has a corresponding recessed forming part. To prevent the metal blank placed on the protruding forming part of the lower die from shifting, existing technologies typically set limiting parts around the blank to achieve this. However, after stamping, the formed part needs to first vertically detach from the recessed forming part of the upper die, and then horizontally move out of the protruding forming part area of ​​the lower die. During this process, the formed part is prone to colliding with the surrounding limiting parts, which can lead to scratches or deformation on the surface of the formed part. Although the existing structure can limit the position of the metal blank to a certain extent before stamping, it cannot simultaneously meet the dual requirements of "accurately calibrating the position of the metal blank before stamping" and "conveniently removing the formed part after stamping," and thus has significant shortcomings. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing technology cannot meet the requirements of guiding and limiting the metal plate before stamping and facilitating the unloading of the formed part after stamping, and proposes a positioning mechanism for automotive stamping parts.

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

[0006] A positioning mechanism for automotive stamping parts includes a stamping table and an upper die. A lower die is mounted on the upper surface of the stamping table. Two L-shaped pressure strips are fixedly connected to the left and right sides of the upper die, respectively. Four top arc plates are slidably connected to the inner wall of the stamping table. A pressure plate is fixedly connected to the outer surface of each of the four top arc plates. The outer surfaces of the four pressure plates are slidably connected to the stamping table. Two of the pressure plates have a first tongue plate fixedly connected to their outer surfaces. Two limiting mechanisms for limiting the first tongue plates are provided inside the stamping table. A reset mechanism for resetting the four pressure plates and the top arc plates is provided below the stamping table.

[0007] Preferably, a bracket is fixedly connected to the upper surface of the stamping table, an electric push rod is installed inside the bracket, and the upper die is installed at the output end of the electric push rod.

[0008] Preferably, the limiting mechanism includes a vertical groove and a horizontal groove. The vertical groove passes through the stamping table and extends to the upper surface of the stamping table. The horizontal groove is formed inside the stamping table, and the vertical groove and the horizontal groove are connected.

[0009] Preferably, the outer surface of the second tongue plate is slidably connected to the transverse groove, a pull rod is fixedly connected to the outer surface of the second tongue plate, the outer surface of the pull rod is slidably connected to the stamping table, and a pull plate is fixedly connected to one end of the pull rod.

[0010] Preferably, a first spring is sleeved on the outer surface of the pull rod, and the two ends of the first spring are fixedly connected to the inner sidewall of the transverse groove and the outer surface of the second tongue plate, respectively.

[0011] Preferably, the reset mechanism includes a linkage plate, the upper surface of which is fixedly connected to four pressure plates and a top arc plate.

[0012] Preferably, a second spring is fixedly connected to the upper surface of the linkage plate, and the top end of the second spring is fixedly connected to the bottom surface of the stamping table.

[0013] Compared with the prior art, this utility model provides a positioning mechanism for automotive stamping parts, which has the following advantages:

[0014] 1. This utility model uses a top arc plate to surround and guide the blank to be processed, so as to achieve accurate positioning of the blank before stamping. During stamping, the L-shaped pressure strip presses the pressure plate, which drives the top arc plate to move down and be stored. The storage state is maintained by the second tongue plate and other limiting mechanisms, so that there are no protrusions around the formed part and it can be directly taken out. It takes into account both positioning and part removal, and avoids collision damage.

[0015] 2. This utility model connects the pressure plate and the top arc plate through a linkage plate, and achieves synchronous reset with the second spring. Pulling the pull plate and pulling the pull rod can quickly release the second tongue plate from the first tongue plate. The operation is simple and improves the efficiency of the mechanism's cyclic use. Attached Figure Description

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

[0017] Figure 2 This is the bottom view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the image.

[0020] In the picture:

[0021] 1. Stamping table; 2. Lower die; 3. Support; 4. Electric push rod; 5. Upper die; 6. L-shaped pressure bar; 7. Pressure plate; 8. Top arc plate; 9. Linkage plate; 10. Second spring; 11. First tongue plate; 12. Vertical groove; 13. Pull plate; 14. Pull rod; 15. Second tongue plate; 16. First spring; 17. Horizontal groove. 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 A positioning mechanism for automotive stamping parts includes a stamping table 1 and an upper die 5. A lower die 2 is mounted on the upper surface of the stamping table 1. The lower die 2 is correspondingly set with the upper die 5 to ensure stamping accuracy. A bracket 3 is fixedly connected to the upper surface of the stamping table 1. An electric push rod 4 is installed inside the bracket 3. The bracket 3 provides stable support for the electric push rod 4 and enhances the structural rigidity. The upper die 5 is mounted on the output end of the electric push rod 4. The electric push rod 4 can drive the upper die 5 to rise and fall stably to perform stamping operations.

[0024] Two L-shaped pressure strips 6 are fixedly connected to the left and right sides of the upper mold 5 respectively. Four top arc plates 8 are slidably connected to the inner wall of the stamping table 1. The L-shaped pressure strips 6 are symmetrically positioned to ensure balanced downward pressure. Pressure plates 7 are fixedly connected to the outer surfaces of the four top arc plates 8. The outer surfaces of the four pressure plates 7 are slidably connected to the stamping table 1.

[0025] Two of the pressure plates 7 have a first tongue plate 11 fixedly connected to their outer surfaces. The stamping table 1 has two limiting mechanisms inside for limiting the first tongue plate 11. The arc shape on the top of the top arc plate 8 can guide the placement of the plate to be processed.

[0026] The limiting mechanism includes a vertical groove 12 and a horizontal groove 17. The vertical groove 12 passes through the stamping table 1 and extends to the upper surface of the stamping table 1. The opening of the vertical groove 12 faces upward to facilitate the entry of the second tongue plate 15. The horizontal groove 17 is opened inside the stamping table 1, and the vertical groove 12 and the horizontal groove 17 are connected. The groove structure provides guidance for the movement of the tongue plate and avoids component jamming. The groove connection design simplifies the movement path.

[0027] The outer surface of the second tongue plate 15 is slidably connected to the transverse groove 17. A pull rod 14 is fixedly connected to the outer surface of the second tongue plate 15. The second tongue plate 15 slides flexibly and responds quickly when pressed by the first tongue plate 11. The outer surface of the pull rod 14 is slidably connected to the stamping table 1. A pull plate 13 is fixedly connected to one end of the pull rod 14. The pull plate 13 facilitates manual operation and improves the ease of use of the lifting mechanism. The pull rod 14 has direct transmission and low operating force loss.

[0028] A first spring 16 is sleeved on the outer surface of the pull rod 14. The two ends of the first spring 16 are fixedly connected to the inner sidewall of the transverse groove 17 and the outer surface of the second tongue plate 15, respectively. The first spring 16... Figure 4 In its natural state, the first spring 16 can maintain the second tongue plate 15 in its normal limiting state, ensuring structural stability, long-lasting elasticity, and adaptability to long-term high-frequency use.

[0029] A reset mechanism is provided below the stamping table 1 for resetting the four pressure plates 7 and the top arc plate 8. The reset mechanism can realize the automatic return of the parts, reduce the process interval time, and the integrated design of the reset mechanism saves installation space.

[0030] The reset mechanism includes a linkage plate 9. The upper surface of the linkage plate 9 is fixedly connected to four pressure plates 7 and a top arc plate 8. The linkage plate 9 is firmly connected, which can ensure that multiple components move synchronously, so that the four pressure plates 7 and the top arc plate 8 move synchronously.

[0031] A second spring 10 is fixedly connected to the upper surface of the linkage plate 9. The top end of the second spring 10 is fixedly connected to the bottom surface of the stamping table 1. The second spring 10... Figure 3 When in the natural state, the use of the second spring 10 can ensure a smooth and reliable reset action, strong fatigue resistance, and extended service life.

[0032] Working principle: The metal blank to be processed is placed on the lower mold 2 along the inner arc surface of the four top arc plates 8. The blank position is automatically calibrated by the enclosing and guiding effect of the top arc plates 8 to prevent initial placement deviation.

[0033] When the electric push rod 4 is activated, its output end pushes the upper mold 5 to move downward along the guide of the bracket 3. During the downward movement of the upper mold 5, the L-shaped pressure strips 6 on both sides first contact the pressure plate 7 and apply downward pressure. The pressure plate 7 slides downward along the inner wall of the stamping table 1, and simultaneously drives the top arc plate 8 to move down to be flush with the upper surface of the stamping table 1 to avoid interference with the stamping. The linkage plate 9 moves down accordingly and stretches the second spring 10.

[0034] When the pressure plate 7 moves down, the first tongue plate 11 enters and moves down synchronously along the vertical groove 12. Its bottom slope presses against the end slope of the second tongue plate 15, pushing the second tongue plate 15 to compress the first spring 16 and retract into the horizontal groove 17. When the first tongue plate 11 moves completely down below the second tongue plate 15, the first spring 16 resets and pushes the second tongue plate 15 out, forming a vertical limit on the first tongue plate 11, so that the top arc plate 8 remains in the retracted state.

[0035] After stamping is completed, the electric push rod 4 drives the upper mold 5 to move up and reset. At this time, the top arc plate 8 is still in the storage state due to the limitation of the second tongue plate 15. There are no protruding limiting structures around the formed part, so it can be directly moved out of the lower mold 2 laterally to avoid collision damage.

[0036] After the item is retrieved, pull the pull plate 13 outward. The pull rod 14 drives the second tongue plate 15 to compress the first spring 16 and exit the vertical groove 12, releasing the limit on the first tongue plate 11. The second spring 10 releases its elasticity, causing the linkage plate 9, the pressure plate 7, the top arc plate 8, and the first tongue plate 11 to move upward and reset. After the pull plate 13 is released, the second tongue plate 15 resets under the action of the first spring 16, and the mechanism returns to its initial state, waiting for the next operation.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning mechanism for automotive forming stamped parts, comprising a stamping table (1) and an upper die (5), characterized in that, The upper surface of the stamping table (1) is equipped with a lower mold (2). The left and right sides of the upper mold (5) are respectively fixedly connected with two L-shaped pressure strips (6). The inner wall of the stamping table (1) is slidably connected with four top arc plates (8). The outer surfaces of the four top arc plates (8) are all fixedly connected with pressure plates (7). The outer surfaces of the four pressure plates (7) are slidably connected to the stamping table (1). The outer surfaces of two pressure plates (7) are fixedly connected with first tongue plates (11). The inside of the stamping table (1) is provided with two limiting mechanisms for limiting the first tongue plates (11). The bottom of the stamping table (1) is provided with a reset mechanism for resetting the four pressure plates (7) and the top arc plates (8).

2. The positioning mechanism for automotive stamping parts according to claim 1, characterized in that, A bracket (3) is fixedly connected to the upper surface of the stamping table (1), and an electric push rod (4) is installed inside the bracket (3). The upper mold (5) is installed at the output end of the electric push rod (4).

3. The positioning mechanism for automotive stamping parts according to claim 1, characterized in that, The limiting mechanism includes a vertical groove (12) and a horizontal groove (17). The vertical groove (12) penetrates the stamping table (1) and extends to the upper surface of the stamping table (1). The horizontal groove (17) is opened inside the stamping table (1), and the vertical groove (12) and the horizontal groove (17) are connected.

4. The positioning mechanism for automotive stamping parts according to claim 3, characterized in that, The outer surface of the second tongue plate (15) is slidably connected to the transverse groove (17). A pull rod (14) is fixedly connected to the outer surface of the second tongue plate (15). The outer surface of the pull rod (14) is slidably connected to the stamping table (1). A pull plate (13) is fixedly connected to one end of the pull rod (14).

5. The positioning mechanism for automotive stamping parts according to claim 4, characterized in that, The outer surface of the pull rod (14) is fitted with a first spring (16), and the two ends of the first spring (16) are fixedly connected to the inner side wall of the transverse groove (17) and the outer surface of the second tongue plate (15), respectively.

6. The positioning mechanism for automotive stamping parts according to claim 1, characterized in that, The reset mechanism includes a linkage plate (9), the upper surface of which is fixedly connected to four pressure plates (7) and a top arc plate (8).

7. A positioning mechanism for automotive stamping parts according to claim 6, characterized in that, The upper surface of the linkage plate (9) is fixedly connected to a second spring (10), and the top end of the second spring (10) is fixedly connected to the bottom surface of the stamping table (1).

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