High-precision mold for shielding case production

Abstract

The utility model relates to the technical field of shielding case production, in particular to a high-precision die for shielding case production, which comprises a processing table, a lower die is mounted on the processing table, an electric control cylinder is mounted on the processing table through a support arm, and an upper die is fixedly mounted at one end of an output shaft of the electric control cylinder. Mounting holes are symmetrically formed in the upper mold, moving columns are vertically and slidably mounted in the two mounting holes, L-shaped rods are symmetrically and fixedly mounted at the upper ends of the moving columns, spring rods are fixedly mounted on the two L-shaped rods, one ends of the two spring rods are fixedly connected with the upper mold, and the other ends of the two spring rods are fixedly connected with the lower mold. And the lower end of the moving column is lower than the lower surface of the upper mold. According to the utility model, the shielding case is limited on the lower die, so that the position of the shielding case is prevented from deviating in the stamping process, the high-precision requirement of the shielding case is ensured, and the problem of dimensional deviation of a product is prevented.

Description

Technical Field

[0001] This utility model relates to the field of shielding cover production technology, and in particular to a high-precision mold for shielding cover production. Background Technology

[0002] With the rapid development of electronic equipment, the demand for shielding covers, as an important component for shielding electromagnetic interference, is increasing. In the production process of shielding covers, stamping dies are required. Stamping dies are a special process equipment used in cold stamping to process materials into parts. Stamping is a pressure processing method that uses dies installed on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the required parts.

[0003] Most of the stamping dies available on the market for producing shielding covers are not convenient for limiting the shielding cover between the upper and lower dies during actual use. This can easily cause the shielding cover to shift during the stamping process, making it difficult to meet the high precision requirements and resulting in product size deviations. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: it is not convenient to limit the shielding cover between the upper and lower molds; during the stamping process, the position of the shielding cover is easily offset, making it difficult to meet the high precision requirements and easily causing product size deviations. Therefore, this invention proposes a high-precision mold for shielding cover production.

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

[0006] A high-precision mold for producing shielding covers includes a processing table, a lower mold mounted on the processing table, an electrically controlled cylinder mounted on the processing table via a support arm, and an upper mold fixedly mounted at one end of the output shaft of the electrically controlled cylinder.

[0007] The upper mold has symmetrical mounting holes, and a movable column is vertically slidably installed in each of the two mounting holes. An L-shaped rod is symmetrically fixedly installed on the upper end of each movable column, and a spring rod is fixedly installed on each of the two L-shaped rods. One end of each of the two spring rods is fixedly connected to the upper mold, and the lower end of the movable column is lower than the lower surface of the upper mold.

[0008] Preferably, a cylindrical groove is provided at the lower end of the movable column, and a rubber suction cup is fixedly installed at the lower end of the movable column, with the interior of the rubber suction cup communicating with the cylindrical groove.

[0009] Preferably, the upper end of the movable column is provided with a movable hole, and a push rod is vertically slidably installed in the movable hole. The lower end of the push rod extends into the cylindrical groove and is fixedly installed with a top block. A telescopic spring is sleeved on the push rod, and the two ends of the telescopic spring are fixedly connected to the top block and the inner wall of the cylindrical groove, respectively. A transmission component for driving the push rod to move vertically downward is provided above the upper mold.

[0010] Preferably, the transmission assembly includes an L-shaped positioning rod fixedly mounted on the support arm, with one end of the positioning rod located directly above the top rod.

[0011] Preferably, a mounting block is fixedly installed at one end of the output shaft of the electronically controlled cylinder, and the mounting block is connected to the upper mold by bolts and fasteners.

[0012] Preferably, a mounting base is fixedly installed on the processing table, and a plurality of pin holes are opened on the upper surface of the mounting base. A plurality of positioning pins are vertically fixedly installed on the lower surface of the lower mold, and the plurality of positioning pins are respectively inserted into the plurality of pin holes.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. During the stamping process of the shielding cover, as the upper mold moves vertically downward, the moving column will contact the shielding cover. Through the cooperation of the spring rod and the L-shaped rod, the shielding cover is limited on the lower mold to prevent the shielding cover from shifting during the stamping process, ensuring its high precision requirements and preventing dimensional deviations in the product.

[0015] 2. When the moving column contacts the shielding cover, the rubber suction cup will adhere to the shielding cover. Thus, when the upper mold moves vertically upward, it will cause the formed shielding cover to separate from the lower mold, making it easy to remove the shielding cover from the lower mold. At the same time, through the cooperation of the ejector rod, ejector block, telescopic spring and transmission components, the formed shielding cover is automatically separated from the rubber suction cup, which makes it easier for the staff to unload the material and effectively improves the production rate. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of a high-precision mold for producing shielding covers proposed in this utility model;

[0017] Figure 2 A three-dimensional structural diagram of the mounting base and the lower mold;

[0018] Figure 3 A three-dimensional structural diagram of the electronically controlled cylinder and the upper mold;

[0019] Figure 4 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the upper mold;

[0020] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Processing table, 2. Lower mold, 3. Electric cylinder, 4. Upper mold, 5. Moving column, 6. L-shaped rod, 7. Spring rod, 8. Rubber suction cup, 9. Ejector rod, 10. Ejector block, 11. Telescopic spring, 12. Positioning rod, 13. Mounting block, 14. Mounting base, 15. Positioning pin. 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 Figures 1-5 A high-precision mold for producing shielding covers includes a processing table 1, a lower mold 2 mounted on the processing table 1, an electrically controlled cylinder 3 mounted on the processing table 1 via a support arm, an upper mold 4 fixedly mounted at one end of the output shaft of the electrically controlled cylinder 3, mounting holes symmetrically opened on the upper mold 4, and a moving column 5 vertically slidingly mounted in each of the two mounting holes, an L-shaped rod 6 symmetrically fixedly mounted on the upper end of the moving column 5, and a spring rod 7 fixedly mounted on each of the two L-shaped rods 6, one end of each of the two spring rods 7 being fixedly connected to the upper mold 4, and the lower end of the moving column 5 being lower than the lower surface of the upper mold 4.

[0024] During the stamping process of the shielding cover, the shielding cover to be stamped is placed on the lower mold 2. Then, the electric cylinder 3 is activated to drive the upper mold 4 to move vertically downward. When the upper mold 4 is about to contact the shielding cover, the two moving columns 5 installed on the upper mold 4 contact the shielding cover first. As the upper mold 4 continues to move downward, the moving columns 5 will move upward within the mounting holes opened in the upper mold 4. The spring rod 7 is stretched, generating a downward elastic force on the moving columns 5. Under the action of the elastic force, the shielding cover is clamped in the middle by the moving columns 5 and the lower mold 2, which prevents the shielding cover from shifting in position during the stamping process, ensuring its high precision requirements and preventing dimensional deviations in the product.

[0025] The lower end of the movable column 5 has a cylindrical groove, and a rubber suction cup 8 is fixedly installed at the lower end of the movable column 5. The interior of the rubber suction cup 8 is connected to the cylindrical groove. When the movable column 5 comes into contact with the shielding cover, the rubber suction cup 8 will adhere to the shielding cover. Thus, when the upper mold 4 moves vertically upward, the movable column 5 will drive the formed shielding cover to move upward through the rubber suction cup 8, separating the lower mold 2 and the shielding cover plate after stamping.

[0026] The upper end of the movable column 5 has a movable hole, and a push rod 9 is vertically slidably installed in the movable hole. The lower end of the push rod 9 extends into the cylindrical groove and is fixedly installed with a top block 10. A telescopic spring 11 is sleeved on the push rod 9. The two ends of the telescopic spring 11 are fixedly connected to the top block 10 and the inner wall of the cylindrical groove, respectively. A transmission assembly for driving the push rod 9 to move vertically downward is provided above the upper mold 4. The transmission assembly includes an L-shaped positioning rod 12 fixedly installed on the support arm. One end of the positioning rod 12 is located directly above the push rod 9. When the upper mold 4 moves vertically downward, the positioning rod 12 will separate from the push rod 9. At this time, under the action of the elastic force of the telescopic spring 11, the push rod 9 and the top block 10 will move into the cylindrical groove.

[0027] When the upper mold 4 moves upward, it will cause the ejector rod 9 on the moving column 5 to contact the positioning rod 12, thereby causing the ejector rod 9 to move downward. The lower end of the ejector rod 9 extends out from the arc groove, so that the ejector block 10 contacts the shielding cover, pushing the shielding cover to move vertically downward, separating the formed shielding cover from the rubber suction cup 8, making it easier for workers to unload materials and effectively improving the production rate.

[0028] An installation block 13 is fixedly installed at one end of the output shaft of the electric cylinder 3. The installation block 13 is connected to the upper mold 4 by bolt fasteners. An installation seat 14 is fixedly installed on the processing table 1. Multiple pin holes are opened on the upper surface of the installation seat 14. Multiple positioning pins 15 are vertically fixedly installed on the lower surface of the lower mold 2. Multiple positioning pins 15 are inserted into multiple pin holes respectively.

[0029] The upper mold 4 is connected to the output shaft of the electric cylinder 3 by bolt fasteners and mounting block 13, which makes it easy to replace. Meanwhile, the lower mold 2 is installed on the mounting base 14 by inserting multiple positioning pins 15 into the pin holes, which makes it easy to replace different lower molds 2 according to different shielding covers.

[0030] In this invention, during the stamping process of the shielding cover, the shielding cover to be stamped is placed on the lower mold 2. Then, the electric cylinder 3 is activated, which drives the upper mold 4 to move vertically downward. When the upper mold 4 is about to contact the shielding cover, the two moving columns 5 installed on the upper mold 4 contact the shielding cover first. As the upper mold 4 continues to move downward, the moving columns 5 will move upward within the mounting holes opened in the upper mold 4. The spring rod 7 is stretched, generating a downward elastic force on the moving columns 5. Under the action of the elastic force, the shielding cover is clamped in the middle by the moving columns 5 and the lower mold 2, which prevents the shielding cover from shifting position during the stamping process, ensuring its high precision requirements and preventing dimensional deviations in the product.

[0031] 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.

Claims

1. A high-precision mold for a shield cover production, comprising a processing table (1), characterized in that, The machining table (1) is provided with a lower die (2), and the machining table (1) is provided with an electric control cylinder (3) through a supporting arm, and the electric control cylinder (3) is fixedly provided with an upper die (4) at one end of an output shaft; Symmetrical mounting holes are formed in the upper die (4), and a moving column (5) is vertically and slidably arranged in each mounting hole, and an L-shaped rod (6) is fixedly arranged at the upper end of the moving column (5), and a spring rod (7) is fixedly arranged on the L-shaped rod (6), and one end of the spring rod (7) is fixedly connected with the upper die (4), and the lower end of the moving column (5) is lower than the lower surface of the upper die (4).

2. The high-precision mold for a shield case production according to claim 1, wherein A cylindrical groove is formed in the lower end of the moving column (5), and a rubber suction cup (8) is fixedly arranged at the lower end of the moving column (5), and the rubber suction cup (8) is in communication with the cylindrical groove.

3. The high-precision mold for a shield case production according to claim 2, wherein A moving hole is formed in the upper end of the moving column (5), and a jacking rod (9) is vertically and slidably arranged in the moving hole, and the jacking rod (9) extends into the cylindrical groove and is fixedly provided with a top block (10), and the jacking rod (9) is sleeved with an extension spring (11), and the two ends of the extension spring (11) are fixedly connected with the top block (10) and the inner wall of the cylindrical groove, respectively, and a transmission assembly is arranged above the upper die (4) and used for driving the jacking rod (9) to vertically move downward.

4. The high-precision mold for a shield case production according to claim 3, wherein The transmission assembly comprises an L-shaped positioning rod (12) fixedly arranged on the supporting arm, and one end of the positioning rod (12) is located directly above the jacking rod (9).

5. The high-precision mold for a shield case production according to claim 1, wherein One end of the output shaft of the electric control cylinder (3) is fixedly provided with a mounting block (13), and the mounting block (13) is connected with the upper die (4) through a bolt fastener.

6. The high-precision mold for a shield case production according to claim 1, wherein The machining table (1) is fixedly provided with a mounting seat (14), a plurality of pin holes are formed in the upper surface of the mounting seat (14), and a plurality of positioning pins (15) are vertically and fixedly arranged on the lower surface of the lower die (2), and the positioning pins (15) are respectively inserted into the pin holes.

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