Car trunk cover stamping die

Abstract

This utility model relates to a stamping die for an automobile trunk cover, belonging to the field of stamping die technology. It includes a base and a support frame. A lower die is fixedly mounted on the upper surface of the base. Two first electric push rods are fixedly mounted on the upper surface of the support frame. The outer sides of the output shafts of the first electric push rods on both the left and right sides slide through the support frame and extend into it. An upper die is fixed to the outer side of the output shaft of the first electric push rod on the right side. Limiting members are provided on the left and right sides of the support frame. The pressing mechanism includes a first fixing groove formed on the lower surface of the upper die. This automobile trunk cover stamping die, through the cooperation of a lower pressure plate and a spring, allows the lower pressure plate to apply a certain pressure downwards to the workpiece, thereby fixing the workpiece on the die and improving the stability of the workpiece during the stamping process. The upper die and side dies can stamp the main body and sides of the workpiece respectively, completing the forming of the entire workpiece.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die for an automobile trunk cover. Background Technology

[0002] With the rapid development of the automobile manufacturing industry, automobile manufacturing processes are also being updated and replaced at a very fast pace. The trunk cover is a part of the automobile, and in the current technology, the trunk cover can be stamped and formed by stamping dies.

[0003] For example, CN210648068U discloses a stamping die for a car trunk cover. The die includes a lower die, an inner upper die, and an outer upper die. The outer upper die has a vertical receiving groove in its center, and the inner upper die is received in the receiving groove and can move freely in the vertical direction within the receiving groove. The inner upper die cooperates with the lower die to stamp the horizontal section and the recessed section. The outer upper die moves downward and cooperates with the lower die to stamp the vertical section. The utility model adopts a two-stage stamping process. First, the inner upper die moves downward and cooperates with the lower die to perform the first stage stamping of the horizontal section and the recessed section of the trunk cover. Then, while the inner upper die and the lower die are in the closed state, the outer upper die moves downward and cooperates with the lower die to perform the second stage stamping of the vertical section, thus completing the stamping process. During the first stage stamping, the vertical section is allowed to move freely to ensure that the recessed section is not restrained by the vertical section during the stamping process, thus avoiding the recessed section from becoming thin and becoming a weak defect during the stamping process.

[0004] Although the aforementioned patent avoids the concave section from becoming a weak defect during the stamping process, in the prior art of this patent, when the workpiece is placed on the upper surface of the lower die and stamped downwards by the upper die, the workpiece is prone to positional displacement, which reduces the stability of stamping and thus reduces its practicality. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a stamping die for a car trunk cover, which has the advantages of improving the stability of stamping and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A stamping die for a car trunk cover includes a base and a support frame. The support frame is fixedly installed on the upper surface of the base. A lower die is fixedly installed on the upper surface of the base. Two first electric push rods are fixedly installed on the upper surface of the support frame.

[0008] The outer sides of the first electric push rod output shafts on both the left and right sides slide through the support frame and extend into the interior. An upper mold is fixed to the outer side of the first electric push rod output shaft on the right side, and a side mold is fixed to the outer side of the first electric push rod output shaft on the left side. A pressing mechanism is provided on the lower surface of the upper mold, and an ejection mechanism is provided on the upper surface of the lower mold. Limiting components are provided on the left and right sides of the support frame.

[0009] The pressing mechanism includes a first fixing groove formed on the lower surface of the upper mold. Telescopic rods are fixed on both the front and rear sides of the top wall of the first fixing groove cavity. A pressing plate is fixed to the bottom end of the telescopic rods on both the front and rear sides. A plurality of springs are provided on the top wall of the first fixing groove cavity. The lower surfaces of the plurality of springs are fixedly connected to the upper surface of the pressing plate. Limit strips are fixed on both the left and right side walls of the first fixing groove cavity.

[0010] Furthermore, the telescopic rod includes a first slide rod, and a second slide rod is slidably connected inside the first slide rod.

[0011] Furthermore, the ejection mechanism includes a second fixing groove formed on the upper surface of the lower mold. A second electric push rod is fixedly installed on the bottom wall of the inner cavity of the second fixing groove. An ejection plate is fixed on the outer side of the output shaft of the second electric push rod. Support blocks are fixed on both the left and right side walls of the inner cavity of the second fixing groove. Support rods are fixed at the four corners of the bottom wall of the inner cavity of the second fixing groove. The top ends of the four support rods and the upper surfaces of the two support blocks are in contact with the lower surface of the ejection plate.

[0012] Furthermore, the upper surface of the ejector plate is flush with the upper surface of the lower mold.

[0013] Furthermore, the limiting component includes a fixing port that extends through the left and right sides of the support frame. A limiting rod is fixed inside the fixing port on both the left and right sides. A sliding cylinder is slidably connected to the outer side of the limiting rod on both the left and right sides. A connecting rod is fixed to the opposite side of the sliding cylinder on both the left and right sides. The left side of the connecting rod on the right side is fixedly connected to the right side of the upper mold, and the right side of the connecting rod on the left side is fixedly connected to the left side of the side mold.

[0014] Furthermore, the slide cylinder moves linearly up and down outside the limiting rod.

[0015] Furthermore, the outer diameter of the limiting rod is adapted to the inner diameter of the slide tube.

[0016] Furthermore, several of the springs are evenly distributed on the top wall of the inner cavity of the first fixing groove.

[0017] Compared with the prior art, the present invention provides a stamping die for a car trunk cover, which has the following advantages:

[0018] 1. This automobile trunk cover stamping die, through the cooperation of the lower pressure plate and the spring, the lower pressure plate can apply a certain pressure to the workpiece downward, thereby fixing the workpiece on the die and improving the stability of the workpiece during the stamping process. The upper die and the side die can stamp the main body and the side of the workpiece respectively to complete the forming of the entire workpiece.

[0019] 2. This automobile trunk cover stamping die, by opening the second electric push rod, drives the ejector plate to move upward inside the second fixed groove, which can eject the formed workpiece, making it convenient to pick up the parts, improving production efficiency, and reducing the time and labor intensity of manual operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the pressing mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the ejection mechanism of this utility model.

[0023] In the figure: 1 base, 2 support frame, 3 lower mold, 4 first electric push rod, 5 upper mold, 6 side mold, 7 pressing mechanism, 701 first fixing groove, 702 telescopic rod, 703 pressing plate, 704 spring, 705 limiting strip, 8 ejection mechanism, 801 second fixing groove, 802 second electric push rod, 803 ejection plate, 804 support block, 805 support rod, 9 fixing port, 10 limiting rod, 11 slide cylinder, 12 connecting rod. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1The stamping die for the car trunk cover in this embodiment includes a base 1 and a support frame 2. The support frame 2 is fixedly installed on the upper surface of the base 1. A lower die 3 is fixedly installed on the upper surface of the base 1. Two first electric push rods 4 are fixedly installed on the upper surface of the support frame 2. The outer sides of the output shafts of the first electric push rods 4 on both the left and right sides slide through the support frame 2 and extend into it. An upper die 5 is fixed on the outer side of the output shaft of the right first electric push rod 4, and a side die 6 is fixed on the outer side of the output shaft of the left first electric push rod 4. A pressing mechanism 7 is provided on the lower surface of the upper die 5, an ejection mechanism 8 is provided on the upper surface of the lower die 3, and limiting members are provided on the left and right sides of the support frame 2.

[0026] In this embodiment, the limiting component includes a fixing port 9 that passes through the left and right sides of the support frame 2. A limiting rod 10 is fixed inside the fixing port 9 on both sides. A slide cylinder 11 is slidably connected to the outer side of the limiting rod 10 on both sides. A connecting rod 12 is fixed to the opposite side of the slide cylinder 11 on both sides. The left side of the right connecting rod 12 is fixedly connected to the right side of the upper mold 5, and the right side of the left connecting rod 12 is fixedly connected to the left side of the side mold 6. The slide cylinder 11 moves linearly up and down outside the limiting rod 10. The outer diameter of the limiting rod 10 is adapted to the inner diameter of the slide cylinder 11.

[0027] Specifically, the stability of the upper mold 5 and the side mold 6 moving up and down can be improved by using limiting components.

[0028] It should be noted that the upper die 5 and the side die 6 stamp the main body and the side of the workpiece respectively, which can complete complex stamping forming tasks.

[0029] Please see Figure 2 In this embodiment, the pressing mechanism 7 includes a first fixing groove 701 formed on the lower surface of the upper die 5. Telescopic rods 702 are fixed on both the front and rear sides of the top wall of the inner cavity of the first fixing groove 701. A lower pressing plate 703 is fixed at the bottom end of the telescopic rods 702 on both the front and rear sides. A plurality of springs 704 are provided on the top wall of the inner cavity of the first fixing groove 701. The lower surfaces of the plurality of springs 704 are fixedly connected to the upper surface of the lower pressing plate 703. Limit strips 705 are fixed on both the left and right side walls of the inner cavity of the first fixing groove 701 to improve the stability of the workpiece during the stamping process.

[0030] Specifically, the telescopic rod 702 includes a first slide rod, a second slide rod is slidably connected inside the first slide rod, and several springs 704 are evenly distributed on the top wall of the inner cavity of the first fixing groove 701.

[0031] It should be noted that the workpiece to be stamped is placed on the upper surface of the lower die 3. Then, the first electric push rod 4 on the right is opened, which drives the upper die 5 to move downward. Then, the lower pressure plate 703 first contacts the upper surface of the workpiece and presses down to fix the workpiece, improving the stability of stamping. Then, the upper die 5 continues to descend, and then the lower die 3 contacts the workpiece and stamps the workpiece. Several springs 704 are compressed, and the lower surface of the lower pressure plate 703 is flush with the lower surface of the lower die 3. The lower surfaces of the left and right limit strips 705 are in contact with the left and right sides of the upper surface of the lower pressure plate 703, supporting the lower pressure plate 703. Then, the first electric push rod 4 on the left is opened, which drives the side die 6 to move downward and stamp the left side of the workpiece, forming it.

[0032] Please see Figure 3 In this embodiment, the ejection mechanism 8 includes a second fixing groove 801 formed on the upper surface of the lower mold 3. A second electric push rod 802 is fixedly installed on the bottom wall of the inner cavity of the second fixing groove 801. An ejection plate 803 is fixed on the outer side of the output shaft of the second electric push rod 802. Support blocks 804 are fixed on both the left and right side walls of the inner cavity of the second fixing groove 801. Support rods 805 are fixed at the four corners of the bottom wall of the inner cavity of the second fixing groove 801. The top ends of the four support rods 805 and the upper surfaces of the two support blocks 804 are in contact with the lower surface of the ejection plate 803.

[0033] Specifically, the upper surface of the ejector plate 803 is flush with the upper surface of the lower mold 3. The lower mold 3, upper mold 5, side mold 6, limit strip 705, lower pressure plate 703, ejector plate 803 and support block 804 are all made of high-strength and high-toughness mold steel.

[0034] It should be noted that after stamping, the first electric push rods 4 on the left and right sides are activated, which drive the upper mold 5 and the side mold 6 to move upward, so that the mold returns to the initial position and prepares for the next stamping operation. After that, the second electric push rod 802 can be opened, which drives the ejector plate 803 to move upward inside the second fixed groove 801 and ejects the formed workpiece, improving the convenience of removing the part.

[0035] The working principle of the above embodiments is as follows:

[0036] In use, the workpiece to be stamped is placed on the upper surface of the lower die 3. Then, the first electric push rod 4 on the right side is activated, causing the upper die 5 to move downward. The lower pressure plate 703 then contacts the upper surface of the workpiece and presses it down, improving stamping stability. The upper die 5 continues to descend, and then the lower die 3 contacts the workpiece and stamps it. Several springs 704 compress the lower surface of the lower pressure plate 703, making it flush with the lower surface of the lower die 3. The lower surfaces of the left and right limiting strips 705 are also flush with the lower pressure plate 703. The left and right sides of the upper surface 3 are in contact with each other to support the lower pressure plate 703. Then, the first electric push rod 4 on the left side is opened, which drives the side mold 6 to move downward and stamp the left side of the workpiece and form it. After stamping, the first electric push rods 4 on the left and right sides are started, which drives the upper mold 5 and the side mold 6 to move upward. Then, the second electric push rod 802 can be opened, which drives the ejector plate 803 to move upward inside the second fixed groove 801 and ejects the formed workpiece, improving the convenience of picking up the part.

[0037] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] 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 stamping die for a car trunk cover, comprising a base (1) and a support frame (2), characterized in that: The support frame (2) is fixedly installed on the upper surface of the base (1), the lower mold (3) is fixedly installed on the upper surface of the base (1), and two first electric push rods (4) are fixedly installed on the upper surface of the support frame (2). The outer sides of the output shafts of the first electric push rods (4) on both the left and right sides slide through the support frame (2) and extend into the interior. The outer side of the output shaft of the first electric push rod (4) on the right side is fixed with an upper mold (5), and the outer side of the output shaft of the first electric push rod (4) on the left side is fixed with a side mold (6). The lower surface of the upper mold (5) is provided with a pressing mechanism (7), and the upper surface of the lower mold (3) is provided with an ejection mechanism (8). The left and right sides of the support frame (2) are provided with limiting parts. The pressing mechanism (7) includes a first fixing groove (701) opened on the lower surface of the upper mold (5). Telescopic rods (702) are fixed on both the front and rear sides of the top wall of the inner cavity of the first fixing groove (701). A lower pressure plate (703) is fixed at the bottom end of the telescopic rods (702) on both the front and rear sides. A plurality of springs (704) are provided on the top wall of the inner cavity of the first fixing groove (701). The lower surfaces of the plurality of springs (704) are fixedly connected to the upper surface of the lower pressure plate (703). Limit strips (705) are fixed on both the left and right side walls of the inner cavity of the first fixing groove (701).

2. The stamping die for a car trunk cover according to claim 1, characterized in that: The telescopic rod (702) includes a first slide rod, and a second slide rod is slidably connected inside the first slide rod.

3. The stamping die for a car trunk cover according to claim 1, characterized in that: The ejection mechanism (8) includes a second fixing groove (801) opened on the upper surface of the lower mold (3). A second electric push rod (802) is fixedly installed on the bottom wall of the inner cavity of the second fixing groove (801). An ejection plate (803) is fixed on the outer side of the output shaft of the second electric push rod (802). Support blocks (804) are fixed on both the left and right side walls of the inner cavity of the second fixing groove (801). Support rods (805) are fixed at the four corners of the bottom wall of the inner cavity of the second fixing groove (801). The tops of the four support rods (805) and the upper surfaces of the two support blocks (804) are in contact with the lower surface of the ejection plate (803).

4. The stamping die for a car trunk cover according to claim 3, characterized in that: The upper surface of the ejector plate (803) is flush with the upper surface of the lower mold (3).

5. The stamping die for a car trunk cover according to claim 1, characterized in that: The limiting component includes a fixed opening (9) that runs through the left and right sides of the support frame (2). A limiting rod (10) is fixed inside the fixed opening (9) on both the left and right sides. A slide cylinder (11) is slidably connected to the outside of the limiting rod (10) on both the left and right sides. A connecting rod (12) is fixed on the opposite side of the slide cylinder (11) on both the left and right sides. The left side of the connecting rod (12) on the right side is fixedly connected to the right side of the upper mold (5), and the right side of the connecting rod (12) on the left side is fixedly connected to the left side of the side mold (6).

6. The stamping die for a car trunk cover according to claim 5, characterized in that: The slide (11) moves linearly up and down outside the limiting rod (10).

7. The stamping die for a car trunk cover according to claim 5, characterized in that: The outer diameter of the limiting rod (10) is adapted to the inner diameter of the slide (11).

8. The stamping die for a car trunk cover according to claim 1, characterized in that: Several springs (704) are evenly distributed on the top wall of the inner cavity of the first fixing groove (701).

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