jig

Abstract

This application provides a fixture, relating to the field of integrated circuit packaging technology, for fixing multiple housings to be processed. Each housing includes a housing body and a lead frame. The fixture includes a base plate and a cover plate that can be fastened to the base plate. A first flexible material layer is provided on the side of the base plate facing the cover plate, and a second flexible material layer is provided on the side of the cover plate facing the base plate. The cover plate has multiple placement slots, and the second flexible material layer has multiple openings corresponding to the placement slots. The openings and placement slots are used to accommodate the housing bodies. When the base plate and cover plate are fastened, the first and second flexible material layers can contact the lead frame to fix the housings to be processed. The fixture provided by this application can adapt to the processing of housings of various specifications, reducing fixture costs and improving processing efficiency.

Description

Technical Field Figure 9 , Figure 9 , Figure 9

[0001] The present application relates to the technical field of integrated circuit packaging, and particularly relates to a fixture, and more particularly to a fixture applicable to processing a package shell by a sintering device. Background Art

[0002] In the assembly and packaging processes of electronic components and integrated circuits, sintering is a key process in micro-assembly technology. The purpose is to firmly bond a chip to a package shell base by curing a conductive adhesive or an insulating adhesive at high temperature. Currently, the sintering process usually uses a dedicated die bonding device to complete the sintering process, and a dedicated fixture supporting the package shell and positioning it is used in conjunction with the die bonding device.

[0003] Such as Figure 8 and Figure 9 shown, the existing fixture includes a base 01 and two cover plates. A receiving groove 03 for receiving a to-be-processed package shell is provided on the base 01 (as shown on the left side), openings 04 are provided on both cover plates. Elastic pieces 00 are provided on both sides of the opening 04 of the first cover plate 021 relatively close to the base 01 (as shown in the middle), and the package shell is fixed by the elastic deformation of the elastic pieces 00. The shape of the opening 04 on the second cover plate 022 relatively far from the base 01 (as shown on the right side) is adapted to the shape of the opening 04 on the first cover plate 021 and the elastic pieces 00, that is, the area of the edge of the opening 04 corresponding to the elastic pieces 00 protrudes inward to fix the elastic pieces 00. During feeding, the to-be-processed package shells need to be picked up one by one, placed into the receiving groove 03, and then the first cover plate 021 and the second cover plate 022 are covered in sequence. The openings 04 on the first cover plate 021 and the second cover plate 022 are aligned with the receiving groove 03 on the base 01 to expose a partial surface of the to-be-processed package shell in the receiving groove 03, and the elastic pieces 00 on the first cover plate 021 are pressed on the edge of the to-be-processed package shell, and then sintering can be carried out. After sintering, the cover plate of the fixture needs to be separated from the base 01 to take out the package shell to complete discharging.

[0004] Since the to-be-processed package shell generally includes a package shell body and a lead frame, a part of the lead frame extends into the package shell body and is electrically connected to the pins or electrodes of the chip therein, and another part of the lead frame is located outside the package shell body. Since the receiving groove 03 of the base 01 is used to receive the to-be-processed package shell, grooving needs to be carried out according to the sizes of the package shell body and the lead frame, and the lead frames of different product models are often different. Therefore, the same fixture can only be adapted to package shells of the same specification model, and different fixtures need to be adapted to process package shells of different specification models, which results in high fixture costs and seriously affects the efficiency of mass production due to frequent fixture replacement.

[0005] ​​​​​​On the other hand, since the elastic deformation of the spring is limited, it is easy to generate excessive elastic deformation when fixing the shell. If the spring is not updated or corrected in time, it can easily scratch the shell, leading to abnormal product parameters. Frequent replacement of springs and even cover plates will also increase production costs and reduce production efficiency.

[0006] Therefore, there is an urgent need to develop a more versatile fixture to solve the above problems, so as to control the overall process and fixture production costs while ensuring the stability of the tube shell, and significantly improve the production efficiency of the process. Utility Model Content

[0007] To address the aforementioned problems in the prior art, this application provides a fixture suitable for sintering equipment, used to fix multiple tube shells with lead wire frames to be processed before the sintering process.

[0008] The fixture provided in this embodiment specifically includes: a base plate and a cover plate that can be fastened to the base plate; a first flexible material layer is provided on the side of the base plate facing the cover plate, and a second flexible material layer is provided on the side of the cover plate facing the base plate; a plurality of placement slots are provided on the cover plate, and a plurality of openings corresponding one-to-one with the plurality of placement slots are provided on the second flexible material layer; wherein, the openings and placement slots are used to accommodate the tube shell body, and when the base plate and the cover plate are fastened together, the first flexible material layer and the second flexible material layer can contact the lead frame to fix the tube shell to be processed.

[0009] The fixture provided by the aforementioned solution uses a slot on the cover plate to accommodate the tube housing body, and a first flexible material layer and a second flexible material layer between the base plate and the cover plate to clamp the lead frame around the tube housing body, thereby fixing the tube housing to be processed. Therefore, the fixture can adapt to various specifications and models of tube housings, solving the problem of needing to change fixtures for different specifications and models of tube housings, reducing process costs, and improving production efficiency.

[0010] Furthermore, since the fixture in this embodiment can fix the tube shell to be processed, there is no need to set an opening on the cover plate and install springs. Therefore, there is no need to periodically test the elasticity of the springs and subsequently correct and replace them, thereby reducing the maintenance cost of the fixture.

[0011] Optionally, both the base plate and the cover plate include a first part and a second part disposed at both ends of the first part; multiple placement slots are disposed in the first part of the cover plate. Specifically, the first part is rectangular and the second part is trapezoidal.

[0012] In the aforementioned solution, the second part at both ends of the base plate and the cover plate is set as a trapezoid, so that the four corners of the fixture are chamfered, avoiding sharp right angles of the fixture edges from scratching the operator, effectively improving the safety during operation, and also making it easier to hold.

[0013] Optionally, the placement slots and openings are arranged in an array.

[0014] Optionally, the cross-section of the slot and the opening is a rectangle of the same size, and this cross-section is parallel to the surface of the cover plate.

[0015] Optionally, the first flexible material layer covers at least a first portion of the base plate; the second flexible material layer covers at least a first portion of the cover plate.

[0016] In an alternative embodiment, the first flexible material layer covers at least a first portion of the base plate, ensuring it contacts the lead frame when the base plate and cover plate are engaged. This prevents direct hard contact between the lead frame and the base plate, thus avoiding damage to the casing to be processed. For the same reason, the second flexible material layer covers at least a first portion of the cover plate, similarly reducing damage to the casing and working in conjunction with the first flexible material layer to clamp the lead frame, thereby securing the casing. In another embodiment, the second flexible material layer also covers a second portion of the cover plate, serving to position the second flexible material layer and improve the installation accuracy of the fixture.

[0017] Optionally, the second part of the base plate is provided with a positioning pin, and the second part of the cover plate and the second flexible material layer are provided with positioning pin holes; when the base plate and the cover plate are engaged, the positioning pin can pass through the positioning pin holes to position the base plate, the second flexible material layer and the cover plate, thereby improving the accuracy of alignment and installation.

[0018] Optionally, the second part of the base plate is provided with a plurality of first fixing holes; the second part of the cover plate is provided with a plurality of second fixing holes, the second fixing holes being provided in correspondence with the first fixing holes; the aforementioned fixture also includes fasteners, which can connect the second fixing holes and the first fixing holes, thereby tightly connecting the base plate and the cover plate to ensure that the tube shell to be processed remains in a fixed position during processing.

[0019] Optionally, one of the first fixing hole and the second fixing hole is a threaded hole, and the other is a through hole. Accordingly, the aforementioned fastener is a threaded fastener.

[0020] Optionally, the second flexible material layer has multiple through holes at positions corresponding to the multiple first fixing holes and / or the multiple second fixing holes.

[0021] Optionally, the first flexible material layer and the second flexible material layer are made of heat-resistant fiber tape.

[0022] In summary, the fixture provided in this application uses a first flexible material layer and a second flexible material layer disposed between the cover plate and the base plate to clamp the lead frame of the tube shell to be processed, which is installed in the placement groove, thereby fixing the tube shell to be processed. Compared with the prior art, the fixture can fix the tube shell to be processed without relying on spring clips, eliminating the need for testing the elasticity of the spring clips and replacing them, thus reducing the number of processes and lowering costs. Furthermore, by eliminating the spring clips, the problem of deformation of the spring clips during long-term use, which could scratch the tube shell to be processed and cause abnormal product parameters, is avoided. Moreover, since the lead frame is located outside the placement groove of the cover plate and is fixed by the first and second flexible material layers, the fixture provided in this application can be adapted to tube shells with different lead frame sizes, thereby reducing the number of tooling changes and improving work efficiency and the versatility of the fixture.

[0023] For different series of pipe shells to be processed, since the base plate of the fixture provided in this application does not need to be grooved, the base plate of the fixture is applicable to multiple series of pipe shells to be processed. Only the cover plate needs to be customized according to the specific pipe shell series. This further improves the versatility of the fixture and significantly reduces the overall cost and the difficulty of fixture processing. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0025] Figure 1 A three-dimensional structural schematic diagram of the fixture provided in the embodiments of this application is shown;

[0026] Figure 2 A schematic diagram of the planar structure of the base plate in the fixture provided in the embodiment of this application is shown;

[0027] Figure 3 This paper shows a schematic diagram of the planar structure of the first flexible material layer in the fixture provided in an embodiment of this application;

[0028] Figure 4 A schematic diagram of the planar structure of the cover plate in the fixture provided in an embodiment of this application is shown;

[0029] Figure 5 This paper shows a schematic diagram of the planar structure of the second flexible material layer in the fixture provided in an embodiment of this application;

[0030] Figure 6 A cross-sectional structural schematic diagram of the fixture provided in the embodiment of this application is shown (with the base plate and cover plate separated).

[0031] Figure 7 A schematic diagram of the operation process using the fixture provided in the embodiments of this application is shown;

[0032] Figure 8 A three-dimensional structural diagram of the fixture used in the sintering process in the prior art is shown;

[0033] Figure 9 A schematic diagram of the planar structure of the fixture used in the sintering process in the prior art is shown, in which the left side is the base, and the middle and right sides are cover plates.

[0034] Marked in the image:

[0035] 00: Spring; 01: Base; 021: First cover plate; 022: Second cover plate; 03: Receiving groove; 04: Opening in the background art; 1: Base plate; 11: First part of the base plate; 12: Second part of the base plate; 2: Cover plate; 21: Placement groove; 22: First part of the cover plate; 23: Second part of the cover plate; 3: First flexible material layer; 4: Second flexible material layer; 41: Opening; 50: Positioning pin; 51: Positioning pin hole; 60: First fixing hole; 61: Second fixing hole; 62: Through hole. Detailed Implementation

[0036] This application will now be described more fully below with reference to the accompanying drawings. However, this application can be implemented in many different ways and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided herein to make this application more detailed and complete, and to fully convey the scope of this application to those skilled in the art. The same reference numerals denote the same objects throughout the drawings.

[0037] To overcome the problems of poor versatility, easy damage to components, and frequent fixture replacement for different specifications and models of existing die-casting housings, this disclosure provides a fixture for fixing multiple die-casting housings with lead frames. It can accommodate various die-casting housings of the same series but different sizes, thereby reducing the number of fixture changes and minimizing damage caused by contact between the die-casting housing and the fixture, while simultaneously securing the die-casting housing. This fixture is mainly suitable for die-casting housings with lead frames located on one side of the housing body, such as die-casting housings in CSOP (Ceramic Small Outline Package) form. Exemplary embodiments of the above fixture will be described below with reference to the accompanying drawings.

[0038] like Figure 1As shown, the fixture provided in this embodiment includes a base plate 1 and a cover plate 2 that can be fastened to the base plate 1. A first flexible material layer 3 is provided on the side of the base plate 1 facing the cover plate 2, and a second flexible material layer 4 is provided on the side of the cover plate 2 facing the base plate 1. The cover plate 2 also has multiple placement slots 21 for accommodating the tube shell body. Multiple openings 41, corresponding one-to-one with the placement slots 21, are provided on the second flexible material layer 4, allowing the tube shell to be processed to be placed in the placement slots 21 of the cover plate 2 through the openings 41. In this embodiment, the fixture is configured such that when the base plate 1 and the cover plate 2 are fastened, the first flexible material layer 3 and the second flexible material layer 4 can contact both sides of the lead frame surrounding the tube shell to be processed. The elastic deformation of the first flexible material layer 3 and the second flexible material layer 4 applies uniform pressure to both sides of the lead frame, achieving non-destructive fixing of the lead frame, thereby fixing the tube shell body connected to the lead frame.

[0039] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, both the base plate 1 and the cover plate 2 include a first part and a second part disposed at both ends of the first part. Specifically, the base plate 1 includes a first part 11 and a second part 12, and the cover plate 2 includes a first part 22 and a second part 23. Multiple placement slots 21 are disposed on the first part 22 of the cover plate. Specifically, the first part is rectangular, and the second part is trapezoidal. In this embodiment, the first part includes at least the overlapping area between the tube shell body and the lead frame and the base plate 1 and the cover plate 2 when the tube shell to be processed is installed in the placement slot 21.

[0040] In one alternative embodiment, the second portions located at both ends of the first portion are symmetrically designed. In another alternative embodiment, the second portions at both ends have different shapes and / or sizes, the purpose of which is to enable the operator to avoid reversing when fastening the base plate 1 and the cover plate 2, or to identify their orientation when transferring the fixture to the sintering equipment or other processes.

[0041] In some embodiments, such as Figure 2 and Figure 6 As shown, the second part 12 of the base plate 1 is provided with a locating pin 50. (As indicated...) Figures 4 to 6As shown, the second part 23 of the cover plate and the second flexible material layer 4 are both provided with positioning pin holes 51 coaxial with the positioning pin 50. The first flexible material layer 3 may also be provided with positioning pin holes coaxial with the positioning pin 50. Specifically, the positioning pin holes 51 on the first flexible material layer 3 and the second flexible material layer 4 should be through holes. The positioning pin holes 51 on the cover plate 2 can be through holes or blind holes to adapt to different working conditions. The positioning pin holes 51 are used together with the positioning pin 50 to realize the positioning function of the cover plate 2 and the base plate 1. When the base plate 1 and the cover plate 2 are engaged, the positioning pin 50 can pass through or be inserted into the positioning pin holes 51 to position the base plate 1 and the cover plate 2.

[0042] Since the first flexible material layer 3 and the second flexible material layer 4 are also provided with positioning pin holes 51, in some embodiments, the first flexible material layer 3 and the second flexible material layer 4 are positioned with the base plate 1 and the cover plate 2 by means of positioning pins 50 that pass through the positioning pin holes 51.

[0043] In some embodiments, the first flexible material layer 3 is attached to the base plate 1 and the second flexible material layer 4 is attached to the cover plate 2. In this embodiment, the positioning of the first flexible material layer 3 and the second flexible material layer 4 does not depend on the positioning pin holes 51 on them. The positioning pin holes 51 are provided on them so that the positioning pins 50 can pass through, so that the base plate 1 and the cover plate 2 can be positioned relative to each other.

[0044] In one embodiment, such as Figure 2 , Figure 4 and Figure 5 As shown, the first flexible material layer 3 only covers the first part 11 of the base plate. A positioning pin 50 is provided at the middle of the edge of the second part at both ends of the base plate 1. A positioning pin hole 51 is provided at the same position on the second part 23 of the cover plate and the second flexible material layer 4. The positioning pins 50 at both ends of the base plate 1 pass through the positioning pin holes 51 on the cover plate 2 and the second flexible material layer 4 to achieve positioning of the base plate 1 and the cover plate 2.

[0045] The positions of the positioning pins 50 and positioning pin holes 51 on the base plate 1 and cover plate 2 can be reversed. Specifically, in one embodiment, the positioning pins 50 are disposed on the second part 23 of the cover plate, and the second part 12 of the base plate, as well as the first flexible material layer 3 and the second flexible material layer 4, are provided with positioning pin holes 51 coaxial with the positioning pins 50, which can also achieve the positioning of the base plate 1 and the cover plate 2. In another embodiment, the first flexible material layer 3 only covers the first part 11 of the base plate, the positioning pins 50 are disposed on the second part 23 of the cover plate, and the second part 12 of the base plate, as well as the second flexible material layer 4, are provided with positioning pin holes 51 coaxial with the positioning pins 50, which can also achieve the positioning of the base plate 1 and the cover plate 2.

[0046] In some embodiments, an asymmetrical locating pin 50 layout can be adopted, which can quickly and accurately identify the installation positions of the base plate 1 and cover plate 2 of the fixture, thereby saving the tube loading time.

[0047] In some embodiments, such as Figure 2 or Figure 6 As shown, the second part 12 of the base plate is provided with a plurality of first fixing holes 60, such as... Figure 4 or Figure 6 As shown, the second part 23 of the cover plate is provided with a plurality of second fixing holes 61 corresponding to a plurality of first fixing holes 60. The first fixing holes 60 and the second fixing holes 61 can be used to fix the base plate 1 and the cover plate 2 by means of, for example, threaded connection. For example, one of the first fixing holes 60 and the second fixing holes 61 is a threaded hole and the other is a through hole. By passing a bolt through the through hole in the first fixing hole 60 and the second fixing hole 61 and screwing it into the threaded hole in the first fixing hole 60 and the second fixing hole 61, the base plate 1 and the cover plate 2 can be fixed.

[0048] Specifically, such as Figure 2 As shown, two first fixing holes 60 are respectively provided in the second part at both ends of the base plate 1, and are distributed on both sides of the positioning pin 50, that is, at the four corners of the base plate 1. Figure 4 As shown, two second fixing holes 61 are respectively provided on the second part at both ends of the cover plate 2, and are distributed on both sides of the positioning pin holes 51, that is, at the four corners of the cover plate 2. Figure 5 As shown, two through holes 62 are respectively provided at corresponding positions at both ends of the second flexible material layer 4 so that the aforementioned bolt can pass through the second flexible material layer 4 and connect the first fixing hole 60 and the second fixing hole 61.

[0049] In a specific embodiment, the fixture provided in this application also includes fasteners for connecting the first fixing hole 60 and the second fixing hole 61, such as threaded fasteners, such as the aforementioned bolts, screws, or similar components.

[0050] In some embodiments, the first flexible material layer 3 covers at least the first portion 11 of the base plate. In addition to being able to clamp the lead frame to fix the tube shell, it can also prevent hard contact between the tube shell to be processed and the lead frame disposed around it and the base plate 1 during loading and unloading, thereby reducing damage to the tube shell to be processed, especially the fragile lead frame around the tube shell to be processed.

[0051] In some embodiments, the second flexible material layer 4 covers the first portion 22 of the cover plate, which is intended to cooperate with the first flexible material layer 3 to fix the lead frame. Also, since the second flexible material layer 4 has an opening 41, and the opening 41 needs to be precisely aligned with the placement groove 21 on the cover plate 2, the second flexible material layer 4 can further cover the second portion 23 of the cover plate, which is intended to achieve positioning between the second flexible material layer 4 and the cover plate 2.

[0052] In one optional embodiment, the first flexible material layer 3 completely covers the base plate 1, that is, it covers both the first portion 11 and the second portion 12 of the base plate. In this case, the shape of the first flexible material layer 3 is the same as the shape of the base plate 1. In another optional embodiment, the first flexible material layer 3 only covers the first portion 11 of the base plate. Its shape is rectangular, which can completely cover the tube shell and lead frame portion to be processed. This ensures that the first flexible material layer 3 is in contact with the lead frame of the tube shell to be processed, and effectively reduces material consumption, thereby reducing the production cost of the fixture. In another optional embodiment, the first flexible material layer 3 completely covers the first portion 11 of the base plate and partially covers the second portion 12 of the base plate, such as... Figure 6 As shown, the first flexible material layer 3 covers the first fixing hole 60 at this location, and holes are made in the first flexible material layer 3 corresponding to the first fixing hole 60 to achieve positioning and fixing of the first flexible material layer 3.

[0053] In an optional embodiment, such as Figure 1 and Figure 6 As shown, the second flexible material layer 4 completely covers the cover plate 2, or completely covers the first part 22 of the cover plate and partially covers the second part 23 of the cover plate, as in this case... Figure 5 As shown, the second flexible material layer 4 has multiple through holes 62 at positions corresponding to the multiple first fixing holes 60. The threaded fastener can be threaded to fix the cover plate 2 and the base plate 1 through the first fixing holes 60, the through holes 62, and the second fixing holes 61. This design can achieve the positioning of the second flexible material layer 4 with the cover plate 2 and the base plate 1 through the positioning pin holes 51.

[0054] In another alternative embodiment, the second flexible material layer 4 covers only the first portion 22 of the cover plate, which can effectively save materials and reduce the production cost of the fixture. This design allows the second flexible material layer 4 to be fixed (e.g., glued) to the cover plate 2 first, and then multiple openings 41 that match the size of the placement groove 21 can be processed on the second flexible material layer 4 through subsequent processes (e.g., punching, laser cutting, etc.).

[0055] In some embodiments, such as Figure 4 and Figure 5As shown, the cross-section of the placement groove 21 and the opening 41 is a rectangle of the same size, and this cross-section is parallel to the surface of the cover plate 2 to accommodate common tube shells to be processed.

[0056] In some embodiments, the placement slots 21 and the openings 41 are arranged in an array. In one specific embodiment, such as Figure 4 and Figure 5 As shown, there are 18 slots 21 and 18 openings 41, which are arranged in a 3×6 pattern on the cover plate 2 and the second flexible material layer 4, respectively.

[0057] In some embodiments, the first flexible material layer 3 and the second flexible material layer 4 are fixed to the base plate 1 and the cover plate 2 by curing or adhesive. In one specific embodiment, the first flexible material layer 3 and the second flexible material layer 4 are made of heat-resistant fiber tape, which can be directly bonded to the base plate 1 and the cover plate 2; in another specific embodiment, the first flexible material layer 3 and the second flexible material layer 4 are made of high-temperature resistant polymer materials such as polytetrafluoroethylene (PTFE) and polyetheretherketone (PEEK) with suitable rigidity and flexibility, and through holes are provided as the aforementioned positioning pin holes. In the embodiments of this application, the first flexible material layer 3 and the second flexible material layer 4 are replaceable consumables that can be replaced as needed. When replacing them, it is only necessary to peel off the first flexible material layer 3 or the second flexible material layer 4 and bond a new flexible material layer to the cover plate 2 or the base plate 1, which effectively saves the maintenance time and cost of the fixture.

[0058] In this embodiment, the aforementioned fixture exhibits integrated advantages in the process flow. Specifically, during use, the tube shell to be processed can be baked together with the fixture without being removed from it. After baking, the fixture and the tube shell to be processed are still used together in the next process, such as welding (wire bonding), until the welding (wire bonding) is completed, at which point the cover plate 2 and the base plate 1 are separated, and the final product is unloaded. This design, in which the fixture supports the tube shell to be processed throughout the entire process, significantly reduces the number of times the tube shell to be processed is individually loaded and unloaded during the entire sintering process.

[0059] This application embodiment also provides the operation process of the above-mentioned fixture, such as... Figure 7 As shown, the steps include:

[0060] S1. Invert the cover plate 2 so that the second flexible material layer 4 faces the operator;

[0061] S2. Place the tube shell upside down in the placement slot 21, so that the lead frame contacts the second flexible material layer 4.

[0062] S3. Place the base plate 1 on the cover plate 2, so that the first flexible material layer 3 faces the second flexible material layer 4, and insert the positioning pin 50 into the positioning pin hole 51 to confirm that the base plate 1 is in the correct position, and make the lead frame contact the first flexible material layer 3.

[0063] S4. Fix the cover plate 2 and the base plate 1 by inserting screws into the first fixing hole 60 and the second fixing hole 61, and then perform sintering on the fixed fixture.

[0064] In summary, the fixture provided in this application uses a first flexible material layer and a second flexible material layer to clamp and fix the tube shell to be processed, effectively avoiding damage to the appearance of the tube shell and lead frame caused by hard contact between the tube shell and the base plate, and reducing the wear and tear on the fixture and the tube shell. Furthermore, since only the tube shell body needs to be placed in the placement groove of the cover plate, while the lead frame is located outside the placement groove, the fixture can also allow tube shells of the same series but different lead frame sizes to be processed to be used in the same fixture, reducing the number of tooling changes, lowering the overall process cost, and improving work efficiency. For different series of tube shells to be processed, since the base plate does not have a corresponding tube shell placement groove, the base plate can be completely universal. Only a custom cover plate placement groove needs to be machined for different series of tube shells, which improves the versatility of the fixture to a certain extent, thereby reducing process costs and the machining difficulty of the fixture.

[0065] Furthermore, compared to the fixtures in the prior art, the fixture provided in this application completely eliminates the spring sheet structure, fundamentally solving the problem of spring sheets needing maintenance and replacement due to deformation and breakage. At the same time, it solves the problem of spring sheets causing scratches on the tube shell due to deformation caused by long-term use, leading to abnormal product parameters.

[0066] The above are merely some specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A jig for holding a plurality of can bodies to be processed, the can bodies to be processed including a can body main body and a lead frame, characterized by, The fixture includes a base plate (1) and a cover plate (2) that can be fastened to the base plate (1); The bottom plate (1) is provided with a first flexible material layer (3) on the side facing the cover plate (2), and the cover plate (2) is provided with a second flexible material layer (4) on the side facing the bottom plate (1). The cover plate (2) is provided with a plurality of placement slots (21), and the second flexible material layer (4) is provided with a plurality of openings (41) corresponding one-to-one with the plurality of placement slots (21); The opening (41) and the placement groove (21) are used to accommodate the tube shell body. When the bottom plate (1) and the cover plate (2) are fastened together, the first flexible material layer (3) and the second flexible material layer (4) can contact the lead frame to fix the tube shell to be processed.

2. The jig of claim 1, wherein Both the base plate (1) and the cover plate (2) include a first part and a second part disposed at both ends of the first part; The plurality of placement slots (21) are disposed on the first part of the cover plate (2).

3. The jig of claim 1, wherein The placement slot (21) and the opening (41) are both arranged in an array.

4. The tooling apparatus of any of claims 1-3, wherein, The cross-section of the placement groove (21) and the opening (41) are rectangular with the same dimensions.

5. The jig of claim 2, wherein The first flexible material layer (3) covers at least a first portion of the base plate (1); The second flexible material layer (4) covers at least a first portion of the cover plate (2).

6. The jig of claim 2, wherein The second part of the base plate (1) is provided with a positioning pin (50), and the second part of the cover plate (2) and the second flexible material layer (4) are provided with positioning pin holes (51); When the base plate (1) and the cover plate (2) are engaged, the positioning pin (50) can pass through the positioning pin hole (51) to position the base plate (1), the second flexible material layer (4) and the cover plate (2).

7. The fixture according to claim 2, characterized in that, The second part of the base plate (1) is provided with a plurality of first fixing holes (60); the second part of the cover plate (2) is provided with a plurality of second fixing holes (61), and the second fixing holes (61) are provided in correspondence with the first fixing holes (60); The fixture also includes fasteners that can connect the second fixing hole (61) and the first fixing hole (60).

8. The fixture according to claim 7, characterized in that, One of the first fixing hole (60) and the second fixing hole (61) is a threaded hole, and the other is a through hole.

9. The fixture according to claim 7, characterized in that, The second flexible material layer (4) has a plurality of through holes (62) at positions corresponding to the plurality of first fixing holes (60).

10. The fixture according to claim 1, characterized in that, The first flexible material layer (3) and the second flexible material layer (4) are made of heat-resistant fiber tape.

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