Automobile cold stamping die with high alignment precision

Abstract

The utility model discloses an automobile cold stamping die of alignment precision, include: processing platform, the top wall of processing platform is fixed with two support columns, and the top of two support columns is fixed with same top plate, the top wall of processing platform is fixed with lower die holder, the top wall of lower die holder is fixed with stamping seat, the top plate is fixed with hydraulic pressure rod, the bottom of hydraulic pressure rod is fixed with upper die holder, the bottom wall of upper die holder is fixed with stamping head, the height of stamping head is higher than the cavity depth of stamping seat, and one pair of positioning rods is arranged to the both sides of stamping head, and two pairs of positioning rods are fixed and welded on the fixed seat of stamping head two side walls respectively. The utility model can change the post-inspection into the pre-prevention, can send the alarm to the early stage of alignment accuracy overproof or potential failure of die, avoids batch waste and catastrophic damage of die.

Description

Technical Field

[0001] This utility model relates to the field of automotive cold stamping technology, specifically to a precise-alignment automotive cold stamping die. Background Technology

[0002] In automobile manufacturing, cold stamping is a key process for producing body panels (such as doors, hoods, and fenders). The alignment accuracy of the upper and lower dies (punch and die) of the stamping mold directly determines the quality of the stamped parts. Even a slight deviation in alignment can lead to minor issues like out-of-tolerance product dimensions and flash, or more serious problems such as die edge collisions and breakage, resulting in costly mold damage and significant losses due to production line downtime.

[0003] Currently, mold alignment relies primarily on operator experience for adjustments during installation and indirect assessment through periodic product sampling during production. This method suffers from significant lag, failing to provide immediate warnings when alignment deviations occur. By the time defective products are discovered, a large number of scraps may have already been produced, and the mold may have suffered irreversible damage. Therefore, there is an urgent need for a precisely aligned automotive cold stamping mold to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a precisely aligned automotive cold stamping die to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precisely aligned automotive cold stamping die, comprising: A processing table has two support columns fixedly installed on its top wall. The top ends of the two support columns are welded to the same top plate. A lower die base is fixedly installed on the top wall of the processing table. A stamping seat is fixedly installed on the top wall of the lower die base. A hydraulic rod is fixedly installed on the top plate. An upper die base is fixedly installed at the bottom end of the hydraulic rod. A stamping head is fixedly installed on the bottom wall of the upper die base. The height of the stamping head is greater than the cavity depth of the stamping seat. A pair of positioning rods are provided on both sides of the stamping head. The two pairs of positioning rods are respectively fixedly welded to fixed seats on the side walls of the stamping head. A pair of positioning cylinders are provided on both sides of the stamping seat. The positioning cylinders are fixedly welded to the top wall of the lower die base. A positioning groove is opened on the positioning cylinder. A controller is fixedly installed on one of the support columns.

[0006] Preferably, both the stamping base and the rear sidewall of the stamping head are fixedly welded with aligned fixing blocks. A displacement sensor is fixedly installed on the bottom fixing block, and a sensor adapted to the displacement sensor is fixedly installed on the top fixing block. The displacement sensor is electrically connected to the controller.

[0007] Preferably, pressure rods are provided on both sides of the stamping base, and two shims are fixedly installed on the top wall of the lower die base. The two shims are respectively aligned with the two pressure rods, and pressure sensors are fixedly installed on the shims. The pressure sensors are electrically connected to the controller.

[0008] Preferably, an alarm is fixedly installed on one of the support columns, and the alarm is electrically connected to the controller.

[0009] Preferably, the alarm is an audible and visual alarm.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention uses displacement and pressure sensors to monitor whether the stamping head and stamping seat deviate in the horizontal and vertical directions when they are closing. It issues an alarm in time when a deviation occurs, turning post-inspection into pre-inspection. It can issue an alarm in the early stage when the alignment accuracy is out of tolerance or the mold has potential failure, avoiding batch scrap and catastrophic damage to the mold. It can also correct problems in time, avoiding continuous wear under abnormal conditions, thereby extending the overhaul cycle and service life of the mold. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a precisely aligned automotive cold stamping die proposed in this utility model. Figure 2 This is a rear-view three-dimensional structural diagram of an automotive cold stamping die with precise alignment proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the connection between the stamping seat and the lower die seat in a precisely aligned automotive cold stamping die proposed in this utility model.

[0012] In the diagram: 1. Machining table; 2. Support column; 3. Top plate; 4. Lower die base; 5. Stamping base; 6. Hydraulic rod; 7. Upper die base; 8. Stamping head; 9. Positioning rod; 10. Positioning cylinder; 11. Positioning groove; 12. Fixing block; 13. Displacement sensor; 14. Pressure rod; 15. Gasket; 16. Pressure sensor; 17. Controller; 18. Alarm. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3This utility model provides a technical solution: a precisely aligned automotive cold stamping die, comprising: A processing table 1 has two support columns 2 fixedly installed on its top wall. The top ends of the two support columns 2 are fixedly welded to the same top plate 3. A lower mold base 4 is fixedly installed on the top wall of the processing table 1. A stamping base 5 is fixedly installed on the top wall of the lower mold base 4. A hydraulic rod 6 is fixedly installed on the top plate 3. An upper mold base 7 is fixedly installed at the bottom end of the hydraulic rod 6. A stamping head 8 is fixedly installed on the bottom wall of the upper mold base 7. The height of the stamping head 8 is higher than the cavity depth of the stamping base 5. A pair of positioning rods 9 are provided on both sides of the stamping head 8. The two pairs of positioning rods 9 are fixedly welded to the fixed seats on both sides of the side walls of the stamping head 8. A pair of positioning cylinders 10 are provided on both sides of the stamping base 5. The positioning cylinders 10 are fixedly welded to the top wall of the lower mold base 4. The positioning cylinders 10 have positioning grooves 11. A controller 17 is fixedly installed on one of the support columns 2.

[0015] Both the stamping base 5 and the stamping head 8 have fixedly welded and aligned fixing blocks 12 on their rear side walls. A displacement sensor 13 is fixedly installed on the bottom fixing block 12, and a sensor adapted to the displacement sensor 13 is fixedly installed on the top fixing block 12. The displacement sensor 13 is electrically connected to the controller 17. The displacement sensor 13 can cooperate with the sensor on the top fixing block 12 to monitor whether the stamping base 5 and the stamping head 8 are offset.

[0016] Both sides of the stamping seat 8 are provided with pressure rods 14. Two shims 15 are fixedly installed on the top wall of the lower die seat 4. The two shims 15 are respectively aligned with the two pressure rods 14. A pressure sensor 16 is fixedly installed on the shims 15. The pressure sensor 16 is electrically connected to the controller 17. When the stamping seat 8 is stamping, the pressure rods 14 can press downwards. The pressure sensor 16 can monitor the stamping force of the pressure rods 14 to avoid the stamping seat 8 stamping too deeply or too shallowly, causing the thickness deviation of the part.

[0017] An alarm 18 is fixedly installed on one of the support columns 2, and the alarm 18 is electrically connected to the controller 17.

[0018] The alarm 18 is an audible and visual alarm, and the controller 17 can control the alarm 18 to open and close based on the signals from the displacement sensor 13 and the pressure sensor 16.

[0019] Working principle: When the stamping head 8 and the stamping seat 5 are closed, the displacement sensor 13 can monitor whether the stamping head 8 and the stamping seat 5 are in a horizontal position and transmit the signal to the controller 17. The pressure sensor 16 can monitor the stamping force of the pressure rod 14 to detect whether the stamping seat 8 is stamped too deeply or too shallowly, and transmit the signal to the controller 17. When the displacement sensor 12 detects that the stamping head 8 and the stamping seat 5 are displaced in the horizontal direction, or when the pressure sensor 16 detects that the pressure is significantly different from the set pressure, the controller 17 will activate the alarm 18 to facilitate timely troubleshooting and repair.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise alignment automotive cold stamping die, characterized in that, include: A processing table (1) is provided. Two support columns (2) are fixedly installed on the top wall of the processing table (1). The top of the two support columns (2) is fixedly welded to the same top plate (3). A lower mold base (4) is fixedly installed on the top wall of the processing table (1). A stamping seat (5) is fixedly installed on the top wall of the lower mold base (4). A hydraulic rod (6) is fixedly installed on the top plate (3). An upper mold base (7) is fixedly installed at the bottom end of the hydraulic rod (6). A stamping head (8) is fixedly installed on the bottom wall of the upper mold base (7). The height of the stamping head (8) is higher than the cavity depth of the stamping seat (5). A pair of positioning rods (9) are provided on both sides of the stamping head (8). The two pairs of positioning rods (9) are fixedly welded to the fixing seats on both sides of the stamping head (8). A pair of positioning cylinders (10) are provided on both sides of the stamping seat (5). The positioning cylinders (10) are fixedly welded to the top wall of the lower die seat (4). A positioning groove (11) is provided on the positioning cylinder (10). A controller (17) is fixedly installed on one of the support columns (2).

2. The automotive cold stamping die with precise alignment according to claim 1, characterized in that: Both the stamping base (5) and the stamping head (8) have fixedly welded fixed blocks (12) that are aligned. A displacement sensor (13) is fixedly installed on the bottom fixed block (12), and a sensor adapted to the displacement sensor (13) is fixedly installed on the top fixed block (12). The displacement sensor (13) is electrically connected to the controller (17).

3. The automotive cold stamping die with precise alignment according to claim 1, characterized in that: Both sides of the stamping base (5) are provided with pressure rods (14). Two gaskets (15) are fixedly installed on the top wall of the lower die base (4). The two gaskets (15) are respectively aligned with the two pressure rods (14). A pressure sensor (16) is fixedly installed on the gasket (15). The pressure sensor (16) is electrically connected to the controller (17).

4. The automotive cold stamping die with precise alignment according to claim 1, characterized in that: An alarm (18) is fixedly installed on one of the support columns (2), and the alarm (18) is electrically connected to the controller (17).

5. A precisely aligned automotive cold stamping die according to claim 4, characterized in that: The alarm (18) is an audible and visual alarm.

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