Lead shaping die for ceramic tube shell with pins

Abstract

The utility model relates to a lead shaping die for a ceramic tube shell with pins, which comprises a forming lower plate, a guide pillar plate is connected below the forming lower plate, a plurality of guide pillars are mounted on the guide pillar plate, and an upper forming component is slidably arranged at the upper parts of the guide pillars; the upper forming assembly comprises a driving plate, a cover plate, an auxiliary plate and a spring plate which are sequentially connected from top to bottom, and the spring plate is connected with the upper forming plate through an elastic mechanism; and a forming module is arranged between the upper forming plate and the lower forming plate. According to the utility model, the structure is simple, a shaping process is carried out on a deformed lead by using a forming die principle and die assembly, and the coplanarity of the lead is improved; therefore, the circuit shaping device is suitable for large-yield circuit shaping.

Description

Technical Field

[0001] This utility model belongs to the field of semiconductor manufacturing technology and relates to a lead forming mold for a ceramic tube with leads. Background Technology

[0002] With the development of semiconductor circuit devices, automation technology is becoming increasingly widespread in semiconductor applications. However, differences between circuits will affect automated production, thus the requirements for circuit consistency are becoming increasingly stringent. Pin consistency of ceramic-cased leads is a major factor affecting circuit soldering. During processing, due to inadequate protection of the leads, pin coplanarity often fails to meet requirements upon shipment. Therefore, solving the pin coplanarity problem is an important task.

[0003] Currently, there are two common methods to solve the coplanarity problem of pins: 1. Manual shaping. 2. Shaping machine shaping. However, both methods have certain drawbacks. While manual shaping can solve problems such as pin deformation and warping to some extent, manual shaping cannot guarantee stable coplanarity. Shaping machines on the market can only shape one side at a time, resulting in low production efficiency. They are only suitable for small-scale testing and are not applicable to production batches.

[0004] Therefore, the following problems need to be solved in practical use: solving coplanarity anomalies that cannot be controlled by manual shaping; and being applicable to mass production with high production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a lead forming mold for ceramic tubes with leads, which can solve the above-mentioned problems and improve production efficiency.

[0006] According to the technical solution provided by this utility model: a lead wire shaping mold for a ceramic tube shell with leads includes a lower forming plate, a guide post plate connected below the lower forming plate, several guide posts installed on the guide post plate, and an upper forming assembly slidably provided on the upper part of the guide posts; the upper forming assembly includes a drive plate, a cover plate, an auxiliary plate, and a spring plate connected sequentially from top to bottom, and the spring plate is connected to the upper forming plate through an elastic mechanism; a forming module is provided between the upper forming plate and the lower forming plate; the elastic mechanism includes a bolt, a washer, and a shaping spring, and the auxiliary plate and the spring plate are vertically provided with an auxiliary plate through hole and a spring hole, the shaping spring is located in the auxiliary plate through hole and the spring hole, a washer is placed at the bottom of the spring hole, a bolt is slidably placed in the washer, the bottom of the bolt is threadedly connected to the upper forming plate, and a bushing is sleeved on the lower outer periphery of the bolt; the forming module includes an upper forming mold core installed at the center of the upper forming plate and a lower forming mold core installed at the center of the lower forming plate.

[0007] As a further improvement of this utility model, a guide post plate is bolted to the bottom of the forming lower plate.

[0008] As a further improvement of this utility model, the upper and lower ends of the shaping spring abut against the cover plate and the gasket, respectively.

[0009] As a further improvement of this utility model, the bolt head is in contact with the washer under the action of gravity, and the lower part of the shaping spring is located on the outer periphery of the bolt head.

[0010] As a further improvement of this utility model, the lower forming mold core adopts a split structure, consisting of a lower forming mold and a lower mold inner core.

[0011] As a further improvement of this utility model, a shaping and limiting post is provided at the bottom of the upper forming plate.

[0012] As a further improvement of this utility model, a cutting assembly is provided between the upper forming assembly and the lower forming plate; the cutting assembly includes a cutter plate, the upper end of the cutter plate is connected to the spring plate, and the lower end of the cutter plate is equipped with a cutting cutter.

[0013] As a further improvement of this utility model, a vertical through hole is avoided in the tool plate.

[0014] As a further improvement of this utility model, a cutting limit post is installed at the bottom of the cutter plate.

[0015] As a further improvement of this utility model, the guide plate is placed on the base; the base is placed on the support block.

[0016] The positive and progressive effects of this application are as follows:

[0017] This utility model has a simple structure and uses the principle of forming mold to perform a shaping process on deformed leads by mold closing, thereby improving the coplanarity of the leads and increasing production efficiency. It is suitable for high-volume circuit shaping.

[0018] The principle of this utility model is simple and reasonable, and it can meet the user's requirements for low cost, high speed and high quality for rapid packaging; this utility model is made of metal materials such as stainless steel and aluminum, which are resistant to high temperature, wear and tear and have a long service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the molding module of this utility model.

[0021] Figure 3 This is a cross-sectional view of the present invention. Detailed Implementation

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, terms such as "comprising" and "having" mean that in addition to those already listed in "comprising" and "having," other unlisted contents may also be included; for example, a process, method, system, product, or device may include a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0025] Due to the angle of the drawing, some parts may not be drawn, but their positions and connections can be understood from the text descriptions.

[0026] like Figure 1 As shown, this utility model is a lead wire shaping mold for ceramic tube shells with leads, including a lower forming plate 9, a guide post plate 10 connected to the lower forming plate 9 by bolts, several guide posts 16 mounted on the guide post plate 10, and an upper forming assembly slidably mounted on the upper part of the guide posts 16. The upper forming assembly includes a drive plate 1, a cover plate 2, an auxiliary plate 3, and a spring plate 4 connected sequentially from top to bottom, and the spring plate 4 is connected to the upper forming plate 7 by a spring mechanism. A forming module is provided between the upper forming plate 7 and the lower forming plate 9.

[0027] like Figure 3 As shown, the elastic mechanism includes a bolt 18, a washer 19, and a shaping spring 20. The auxiliary plate 3 and the spring plate 4 are vertically provided with an auxiliary plate through hole and a spring hole. The shaping spring 20 is located in the auxiliary plate through hole and the spring hole. The washer 19 is placed at the bottom of the spring hole. The bolt 18 is slidably placed in the washer 19. The bottom of the bolt 18 is threadedly connected to the upper forming plate 7. A bushing 21 is fitted on the lower outer periphery of the bolt 18.

[0028] The upper and lower ends of the shaping spring 20 abut against the cover plate 2 and the gasket 19, respectively.

[0029] Under the action of gravity, the head of bolt 18 contacts the pad 19, and the lower part of the shaping spring 20 is located on the outer periphery of the head of bolt 18.

[0030] The bushing 21 contacts the upper forming plate 7 under the action of gravity, and the bushing 21 is large enough to extend into the spring hole in the spring plate 4.

[0031] like Figure 2 As shown, the molding module includes an upper molding core 13 installed at the center of the upper molding plate 7 and a lower molding core installed at the center of the lower molding plate 9. The lower molding core adopts a split structure, consisting of a lower molding mold 14 and a lower mold inner core 15.

[0032] To limit the shaping force, the bottom of the upper forming plate 7 is provided with a shaping limit post 8.

[0033] When a cutting process is required after shaping, a cutting assembly is provided between the upper forming assembly and the lower forming plate 9. The cutting assembly includes a cutter plate 5, the upper end of which is connected to the spring plate 4, and a cutting cutter 22 is installed at the lower end of the cutter plate 5. A vertical through hole is provided in the cutter plate 5 to allow movement of the bolt 18 and the bushing 21.

[0034] To prevent the cutting tool 22 from cutting the lower forming mold core, a cutting limit post 6 is installed at the bottom of the tool plate 5.

[0035] The guide plate 10 is placed on the base 11. For ease of operation, the base 11 is placed on the support block 12.

[0036] The working process of this utility model is as follows:

[0037] Place the entire mold in the press and connect the drive plate 1 to the press. Adjust the press to ensure the mold can move up and down normally.

[0038] The leaded ceramic tube shell is placed into the lower forming mold core, and the press is started. The upper forming plate 7 moves down until the upper forming mold core 13 contacts the leaded ceramic tube shell and stops, and the bushing 21 stops accordingly. The spring plate 4 continues to move down. When the shim 19 contacts the bushing 21, the shaping spring 20 undergoes elastic deformation. The elastic force is transmitted to the upper forming mold core 13 through the shim 12, the bushing 20, and the upper forming plate 7. The upper forming mold core 13 presses down on the leaded ceramic tube shell for shaping. When the shaping limit post 8 contacts the lower forming plate 9, the shaping downward pressure is constant and no longer increases with the downward movement of the spring plate 4.

[0039] The cutting plate 5 continues to move downward under the drive of the press, and the cutting cutter 22 cuts the lead of the ceramic tube shell with leads. When the cutting limit post 6 contacts the forming plate 7, the cutting stops.

[0040] The cutting tool 22 is located above the lower mold core 15. In order to protect the lower mold core 15, a protective spring is provided below the lower mold core 15. The protective spring is installed in the molding lower plate 9. When the cutting tool 22 cuts the pin and contacts the lower mold core 15, the lower mold core 15 transmits pressure to the protective spring. The protective spring is compressed and deformed, and the lower mold core 15 moves down accordingly to avoid the cutting tool 22 damaging the lower mold core 15.

[0041] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A lead forming mold for a ceramic tube shell with leads, characterized in that, The system includes a lower molding plate (9), a guide post plate (10) connected below the lower molding plate (9), several guide posts (16) installed on the guide post plate (10), and an upper molding assembly slidably mounted on the upper part of the guide posts (16). The upper molding assembly includes a drive plate (1), a cover plate (2), an auxiliary plate (3), and a spring plate (4) connected sequentially from top to bottom. The spring plate (4) is connected to the upper molding plate (7) through a spring mechanism. A molding module is provided between the upper molding plate (7) and the lower molding plate (9). The spring mechanism includes bolts (18) and washers (19). The shaping spring (20) is vertically provided with an auxiliary plate through hole and a spring hole in the auxiliary plate (3) and the spring plate (4). The shaping spring (20) is located in the auxiliary plate through hole and the spring hole. A shim (19) is placed at the bottom of the spring hole. A bolt (18) is slidably placed in the shim (19). The bottom of the bolt (18) is threadedly connected to the upper forming plate (7). A bushing (21) is fitted on the lower outer periphery of the bolt (18). The forming module includes an upper forming mold core (13) installed in the center of the upper forming plate (7) and a lower forming mold core installed in the center of the lower forming plate (9).

2. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, The guide plate (10) is bolted to the bottom of the forming lower plate (9).

3. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, The upper and lower ends of the shaping spring (20) abut against the cover plate (2) and the gasket (19) respectively.

4. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, The head of the bolt (18) contacts the pad (19) under the action of gravity, and the lower part of the shaping spring (20) is located on the outer periphery of the head of the bolt (18).

5. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, The lower forming mold core adopts a split structure, consisting of a lower forming mold (14) and a lower mold inner core (15).

6. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, The bottom of the forming plate (7) is provided with a shaping limit post (8).

7. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, A cutting assembly is provided between the upper forming assembly and the lower forming plate (9); the cutting assembly includes a cutter plate (5), the upper end of the cutter plate (5) is connected to the spring plate (4), and the lower end of the cutter plate (5) is equipped with a cutting cutter (22).

8. The lead forming mold for a ceramic tube shell with leads as described in claim 7, characterized in that, Vertical through holes are avoided in the cutter plate (5).

9. The lead forming mold for a ceramic tube shell with leads as described in claim 7, characterized in that, Cutting limit post (6) is installed at the bottom of the cutter plate (5).

10. The lead forming mold for a ceramic tube shell with leads as described in claim 1, characterized in that, The guide plate (10) is placed on the base (11); the base (11) is placed on the support block (12).

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