Automobile die with time delay mechanism

Abstract

The utility model discloses an automobile die with a time delay mechanism, and particularly relates to the technical field of automobile dies, the automobile die comprises an upper die base and a lower die base, the bottom end of the upper die base is provided with an upper material pressing core, and the top end of the upper material pressing core is connected with the bottom end of the upper die base through a plurality of upper nitrogen springs; two upper forming blocks connected with the bottom of the upper die base penetrate through the upper material pressing core, upper opposite ejection blocks are fixedly arranged on the two sides of the bottom end of the upper material pressing core, a lower blank holder is arranged above the lower die base, and the bottom end of the lower blank holder is connected with the top end of the lower die base through a plurality of lower nitrogen springs. Air cylinders are fixedly arranged on the two sides of the top end of the lower blank holder. The air cylinder, the upper opposite ejection block and the lower opposite ejection block are arranged between the upper die and the lower die, so that the upper nitrogen spring on the upper material pressing core delays to release pressure, synchronous movement of the upper material pressing core and the lower blank holder is guaranteed, the upper material pressing core is prevented from pressing and deforming stamping parts, and the rejection rate of the stamping parts can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile moulds, in particular to an automobile mould with a time delay mechanism. Background Art

[0002] In recent years, with the increasingly fierce competition in the automobile market, major automobile OEMs have very high requirements for stamping production efficiency and very high labor costs. They all hope to reduce stamping costs by improving the stability of molds. Automobile molds are special tools used to manufacture automobile parts, usually made of materials such as steel or aluminum. They play a vital role in automobile production. The design and manufacturing requirements of automobile molds are very high, and it is necessary to consider aspects such as material selection, mold structure design, processing accuracy control, and surface treatment. In addition, with the development of the automobile industry, the requirements for automobile molds are also constantly increasing, such as lightweight, environmental protection, and efficient production. According to these characteristics of the parts, the process personnel design and layout of the process procedures, formulate the process documents of this part, determine the mold size and process steps for producing this part, and thus obtain automobile molds that meet the requirements.

[0003] For example, the prior art publication number is CN213317052U, which is a stamping-resistant automobile mold. The utility model spring can reduce the damage to the mold caused by excess stamping pressure. At the same time, the cooling mechanism inside the die can cool the working mold to extend the service life of the mold.

[0004] However, the above-mentioned prior art still has the following problems when in use: for some drawn parts with complex surfaces, general automobile mold structures cannot produce qualified products, and the scrap rate of stamping parts is high. Based on this, the utility model provides an automobile mold with a delay mechanism, which plays a role in reducing the yield rate of stamping parts. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an automobile mold with a delay mechanism, by arranging a cylinder, an upper top block and a lower top block between the upper mold and the lower mold, so that the upper nitrogen spring on the upper pressure core releases the pressure with a delay, thereby ensuring the synchronous movement of the upper pressure core and the lower pressure ring, avoiding the upper pressure core from deforming the stamping part, thereby reducing the scrap rate of the stamping part, and solving the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automobile mold with a delay mechanism, comprising an upper mold base and a lower mold base, an upper pressing core is provided at the bottom of the upper mold base, the top of the upper pressing core is connected to the bottom of the upper mold base by a plurality of upper nitrogen springs, the upper pressing core is penetrated by two upper forming blocks connected to the bottom of the upper mold base, upper top blocks are fixedly provided on both sides of the bottom of the upper pressing core, a lower pressure ring is provided above the lower mold base, the bottom end of the lower pressure ring is connected to the top of the lower mold base by a plurality of lower nitrogen springs, cylinders are fixedly provided on both sides of the top of the lower pressure ring, lower top blocks are fixedly provided on the piston rods of the two cylinders, the tops of the two lower top blocks are respectively in contact with the bottoms of the two upper top blocks, a lower forming block is provided on the top of the lower mold base, and a stamping part is provided between the top of the lower forming block and the bottom of the upper pressing core.

[0007] In a preferred embodiment, both sides of the top of the stamping part are in contact with the bottoms of the two upper forming blocks respectively, and both sides of the bottom of the stamping part are in contact with the top of the lower pressure ring, and the stamping part is processed by the cooperation of the lower pressure ring and the upper forming blocks.

[0008] In a preferred embodiment, embedding grooves are provided on both sides of the bottom end of the upper pressing core, and two upper top blocks are detachably installed in the two embedding grooves, respectively, so as to improve the stability of the upper top blocks.

[0009] In a preferred embodiment, a plurality of first mounting grooves are formed at the bottom end of the upper mold base, and two upper molding blocks and a plurality of upper nitrogen springs are respectively detachably mounted in the plurality of first mounting grooves, so as to facilitate the installation of the upper molding blocks and the upper nitrogen springs.

[0010] In a preferred embodiment, a plurality of second mounting grooves are formed on the top of the lower die base, and the lower molding block and the two lower nitrogen springs are respectively fixed in the plurality of second mounting grooves for mounting the lower molding block and the lower nitrogen springs.

[0011] In a preferred embodiment, the upper die base and the lower die base are both provided with a plurality of through holes, and the plurality of through holes on the upper die base and the plurality of through holes on the lower die base are evenly distributed for connecting the punch press slide.

[0012] In a preferred embodiment, fixing grooves are provided on both sides of the top end of the lower pressure edge ring, and two cylinders are detachably installed in the two fixing grooves respectively.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model arranges a cylinder, an upper top block and a lower top block between the upper die and the lower die, so that the upper nitrogen spring on the upper pressure core releases the pressure with a delayed time, thereby ensuring the synchronous movement of the upper pressure core and the lower pressure ring, avoiding the upper pressure core from deforming the stamping part, thereby reducing the scrap rate of the stamping part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A magnified view of part A in FIG.

[0017] Figure 3 It is a cross-sectional view of the upper die base, upper pressing core, upper forming block and upper nitrogen spring structure of the utility model;

[0018] Figure 4 It is a cross-sectional view of the lower die base, lower pressure ring and lower nitrogen spring structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. upper die base; 2. lower die base; 3. upper pressure core; 4. upper nitrogen spring; 5. upper forming block; 6. upper top block; 7. lower pressure edge ring; 8. lower nitrogen spring; 9. cylinder; 10. lower top block; 11. lower forming block; 12. stamping part; 13. embedded groove; 14. first mounting groove; 15. second mounting groove; 16. through hole; 17. fixing groove. DETAILED DESCRIPTION

[0020] 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.

[0021] Refer to the instruction manual Figure 1-4 The utility model provides an automobile mold with a delay mechanism, comprising an upper mold base 1 and a lower mold base 2, wherein an upper pressing core 3 is provided at the bottom of the upper mold base 1, and the top of the upper pressing core 3 is connected to the bottom of the upper mold base 1 through a plurality of upper nitrogen springs 4, and the upper pressing core 3 is penetrated by two upper forming blocks 5 connected to the bottom of the upper mold base 1;

[0022] Upper top blocks 6 are fixedly provided on both sides of the bottom end of the upper pressure core 3, a lower pressure ring 7 is provided above the lower die base 2, the bottom end of the lower pressure ring 7 is connected to the top end of the lower die base 2 via a plurality of lower nitrogen springs 8, cylinders 9 are fixedly provided on both sides of the top end of the lower pressure ring 7, lower top blocks 10 are fixedly provided on the piston rods of the two cylinders 9, the tops of the two lower top blocks 10 are in contact with the bottoms of the two upper top blocks 6 respectively, and a lower forming block 11 is provided on the top of the lower die base 2;

[0023] A stamping part 12 is provided between the top of the lower forming block 11 and the bottom of the upper pressing core 3. The two sides of the top of the stamping part 12 are respectively in contact with the bottoms of the two upper forming blocks 5, and the two sides of the bottom of the stamping part 12 are in contact with the top of the lower pressure ring 7. The stamping part 12 is processed by the cooperation of the lower pressure ring 7 and the upper forming block 5.

[0024] In addition, a plurality of through holes 16 are provided on the upper die base 1 and the lower die base 2. The plurality of through holes 16 on the upper die base 1 and the plurality of through holes 16 on the lower die base 2 are evenly distributed and are used to fix the upper die base 1 and the punch press slide together for use.

[0025] When in use, the staff first fixes the upper die seat 1 and the punch slider together, and uses the punch slider to drive the upper die seat 1 to move downward, so that the cylinder 9 contracts and drives the lower top block 10 to stagger from the bottom of the upper top block 6. The upper pressing core 3 presses the stamping part 12 before the upper forming block 5 under the action of the upper nitrogen spring 4. When the upper nitrogen spring 4 has completed its stroke, the upper pressing core 3 completes the stamping of the stamping part 12, and then the upper forming block 5 continues to move downward and clamps the stamping part 12 with the lower pressure ring 7 until the upper die seat 1 has completed its downward stroke. At this time, the drawing work of the entire stamping part 12 is completed;

[0026] When the punch press slider drives the upper die seat 1 to move upward, the cylinder 9 is used to drive the lower top block 10 to move to the position directly below the upper top block 6, and as the upper die seat 1 moves upward, the lower top block 10 presses against the upper top block 6, so that the upper pressure core 3 and the lower pressure edge ring 7 keep moving synchronously. When the lower nitrogen spring 8 completes its stroke, the upper nitrogen spring 4 releases its stroke. When the punch press slider moves to the upper designated point, the relative positions of the upper pressure core 3 and the lower top block 10 remain unchanged, thereby preventing the upper pressure core 3 from deforming the punch sheet.

[0027] Refer to the instruction manual Figure 1-4 , both sides of the bottom end of the upper pressing core 3 are provided with embedding grooves 13, and the two upper top blocks 6 are detachably installed in the two embedding grooves 13, respectively, to improve the stability of the upper top blocks 6;

[0028] The upper die base 1 is provided with a plurality of first mounting grooves 14 at the bottom end, and the two upper forming blocks 5 and the plurality of upper nitrogen springs 4 are respectively detachably mounted in the plurality of first mounting grooves 14, so as to facilitate the installation of the upper forming blocks 5 and the upper nitrogen springs 4, and the lower die base 2 is provided with a plurality of second mounting grooves 15 at the top end, and the lower forming block 11 and the two lower nitrogen springs 8 are respectively fixed in the plurality of second mounting grooves 15, so as to install the lower forming block 11 and the lower nitrogen springs 8;

[0029] Both sides of the top of the lower pressure edge ring 7 are provided with fixing grooves 17, and the two cylinders 9 can be detachably installed in the two fixing grooves 17, respectively, so that the staff can install and remove the cylinders 9 conveniently.

[0030] Finally: 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 in the protection scope of the present utility model.

Claims

1. The automobile mold with a delay mechanism is characterized by: It comprises an upper die base (1) and a lower die base (2), wherein an upper pressing core (3) is provided at the bottom end of the upper die base (1), the top end of the upper pressing core (3) is connected to the bottom end of the upper die base (1) via a plurality of upper nitrogen springs (4), and two upper forming blocks (5) connected to the bottom of the upper die base (1) are passed through the upper pressing core (3); Upper counter-top blocks (6) are fixedly provided on both sides of the bottom end of the upper pressure core (3), a lower pressure ring (7) is provided above the lower die seat (2), the bottom end of the lower pressure ring (7) is connected to the top end of the lower die seat (2) via a plurality of lower nitrogen springs (8), cylinders (9) are fixedly provided on both sides of the top end of the lower pressure ring (7), lower counter-top blocks (10) are fixedly provided on the piston rods of the two cylinders (9), and the tops of the two lower counter-top blocks (10) are in contact with the bottoms of the two upper counter-top blocks (6) respectively; A lower forming block (11) is provided on the top of the lower die seat (2), and a punching piece (12) is provided between the top of the lower forming block (11) and the bottom of the upper pressing core (3).

2. The automobile mold with a time-delay mechanism according to claim 1, characterized in that: Both sides of the top of the punching part (12) are in contact with the bottoms of the two upper forming blocks (5) respectively, and both sides of the bottom of the punching part (12) are in contact with the top of the lower edge pressing ring (7).

3. The automobile mold with a time-delay mechanism according to claim 1, characterized in that: Both sides of the bottom end of the upper pressing core (3) are provided with embedding grooves (13), and the two upper top blocks (6) are respectively detachably installed in the two embedding grooves (13).

4. The automobile mold with a time-delay mechanism according to claim 1, characterized in that: A plurality of first installation grooves (14) are provided at the bottom end of the upper mold base (1), and the two upper molding blocks (5) and the plurality of upper nitrogen springs (4) are respectively detachably installed in the plurality of first installation grooves (14).

5. The automobile mold with a time-delay mechanism according to claim 1, characterized in that: A plurality of second mounting grooves (15) are provided on the top of the lower die base (2), and the lower molding block (11) and the two lower nitrogen springs (8) are respectively fixed in the plurality of second mounting grooves (15).

6. The automobile mold with a time-delay mechanism according to claim 1, characterized in that: The upper die base (1) and the lower die base (2) are both provided with a plurality of through holes (16), and the plurality of through holes (16) on the upper die base (1) and the plurality of through holes (16) on the lower die base (2) are evenly distributed and are used for connecting a punch press slide.

7. The automobile mold with a time-delay mechanism according to claim 1, characterized in that: Both sides of the top of the lower pressure ring (7) are provided with fixing grooves (17), and the two cylinders (9) are detachably mounted in the two fixing grooves (17).

Images