Universal replaceable pressure welding clamp

Abstract

The utility model relates to a pressure welding clamp, in particular to a universal replaceable pressure welding clamp. Comprising an upper pressing plate and a lower pressing plate, a mounting groove is formed in the lower pressing plate, a lower fixing block is detachably mounted in the mounting groove, a placement groove is formed in the middle of the upper surface of the lower fixing block, and a rectangular positioning block is arranged in the middle of the placement groove; a penetrating groove is formed in the middle of the upper pressing plate, an upper fixing block is detachably installed in the penetrating groove, and a bonding operation hole is formed in the middle of the upper fixing block; and the bonding operation hole is positioned right above the rectangular positioning block. The pressing and welding of products can be realized only by replacing the corresponding upper fixing block and the corresponding lower fixing block, the pressing and welding device can be suitable for pressing and welding of products of different types and sizes, and the production and manufacturing cost is reduced to a great extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure welding fixture, in particular to a general-purpose replaceable pressure welding fixture. BACKGROUND

[0002] In the field of ceramic packaging, the product using the hot ultrasonic ball welding gold wire bonding technology is one of the important links in the field, in the production link, the fixture is needed to effectively fix the gold-plated ceramic tube shell, and after the bonding is completed, the appearance of the ceramic tube shell can meet the inspection standard of GJB548B.

[0003] Because the packaging form is the type of CSOP series, F series and the like, the gold-plated area of the tube shell is more, and the tube leg is longer, in the production process, a plurality of types of fixtures are needed to effectively fix them, if the fixture is designed for each product, because the fixture structure of the ASM hot ultrasonic gold wire bonding machine is complex, the processing difficulty is relatively large, which will inevitably cause the production cost to rise. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the technical problem that the existing pressure welding fixture is difficult to be applicable to the packaging of a plurality of chips, a corresponding fixture needs to be designed for each product, leading to high production cost, and provides a general-purpose replaceable pressure welding fixture.

[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] A general-purpose replaceable pressure welding fixture, comprising a upper pressing plate and a lower pressing plate used in cooperation;

[0007] The lower pressing plate is provided with a mounting groove, a lower fixing block is detachably installed in the mounting groove, a placing groove is formed in the middle of the upper surface of the lower fixing block, and a rectangular positioning block is arranged in the middle of the placing groove;

[0008] The middle part of the upper pressing plate is provided with a through groove, an upper fixing block is detachably installed in the through groove, and a bonding operation hole is formed in the middle of the upper fixing block; the bonding operation hole is located directly above the rectangular positioning block.

[0009] Further, two buckle grooves are formed in the lower pressing plate and communicate with the mounting groove;

[0010] A buckle is installed in the buckle groove through a fastening screw, and a pressing groove matched with the buckle is formed in the upper surface of the lower fixing block.

[0011] Further, the upper fixing block is provided with a connecting plate on both sides, and the connecting plate is connected with the upper pressing plate through a connecting screw.

[0012] Further, the upper surface corner of the lower pressing plate is provided with a positioning column, and the upper pressing plate is provided with a positioning hole corresponding to the positioning column, and the lower pressing plate and the upper pressing plate are matched through the positioning column and the positioning hole.

[0013] Further, the upper pressing plate is provided with a limiting block at both ends, and the limiting block is provided with a mounting hole.

[0014] Further, the lower fixed block is provided with a threaded hole.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1. The universal replaceable type pressure welding clamp provided by the utility model is installed through the detachable connection between the lower fixed block and the lower pressing plate and between the upper fixed block and the upper pressing plate, different upper fixed blocks and lower fixed blocks can be replaced according to different types and sizes of products, and there is no need to design and manufacture corresponding types and sizes of pressure welding clamps; only the corresponding upper fixed block and lower fixed block need to be replaced, so that the product can be pressed and welded, the pressure welding of products of different types and sizes can be realized, and the production cost is greatly reduced.

[0017] 2. The universal replaceable type pressure welding clamp provided by the utility model is provided with the positioning column and the positioning hole, so that the upper pressing plate and the lower pressing plate can be more accurate in the sticking track in the production process, and the phenomenon that the upper pressing plate is pressed to the ceramic part of the pipe shell and causes the pipe shell to be broken in the bonding process is prevented.

[0018] 3. The universal replaceable type pressure welding clamp provided by the utility model is provided with the threaded hole on the lower fixed block, so that the operator can take and place the lower fixed block through the screwing of the long screw in the high-temperature environment of bonding. DRAWINGS

[0019] Figure 1 It is a structure schematic view of the utility model embodiment;

[0020] Figure 2 It is a structure schematic view of the utility model embodiment, and the upper pressing plate and the lower pressing plate are not stuck.

[0021] Figure 3 It is a structure schematic view of the utility model embodiment, and the upper pressing plate and the lower pressing plate are not stuck.

[0022] Figure 4 It is a structure schematic view of the utility model embodiment, and the upper pressing plate and the lower pressing plate are not stuck.

[0023] Figure 5 It is a structure schematic view of the utility model embodiment, and the upper pressing plate and the lower pressing plate are not stuck.

[0024] Figure 6 It is a structure schematic view of the utility model embodiment, and the upper pressing plate and the lower pressing plate are not stuck.

[0025] Explanation of reference signs: 1, upper pressing plate; 2, lower pressing plate; 3, mounting groove; 4, lower fixing block; 5, placing groove; 6, rectangular positioning block; 7, through groove; 8, upper fixing block; 9, bonding operation hole; 10, buckle groove; 11, fastening screw; 12, buckle; 13, pressing groove; 14, connecting plate; 15, connecting screw; 16, positioning column; 17, positioning hole; 18, limiting buckle; 19, mounting hole; 20, threaded hole. DETAILED DESCRIPTION

[0026] The technical solutions in the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As shown in Figure 1 and Figure 2 , a universal replaceable compression welding clamp comprises an upper pressing plate 1 and a lower pressing plate 2 used in combination; wherein the upper pressing plate 1 is fixed on the clamping jaw of an ASM bonder, and the lower pressing plate 2 is fixed on the base of the ASM bonder;

[0028] As shown in Figure 3 , in order to make the compression welding clamp applicable to the bonding of products of different types and different sizes, a mounting groove 3 is formed in the lower pressing plate 2, and a lower fixing block 4 is detachably installed in the mounting groove 3; as shown in Figure 4 , in order to place the product, a placing groove 5 is formed in the middle of the upper surface of the lower fixing block 4, and in order to make the tube legs of the product not in rigid contact with the lower fixing block 4, a rectangular positioning block 6 is arranged in the middle of the placing groove 5, which is used to support the product, and in order to further ensure the stability of the product in the placing groove 5, a boss is arranged at the edge of the bottom of the placing groove 5, which is used to support the frame part of the tube legs of the product; the tube legs of the product extend into the placing groove 5, and the rectangular positioning block and the boss are used to support the product, so that the tube legs of the product can be in a suspended state, thereby preventing the tube legs from being scratched from the source;

[0029] As shown in Figure 5 , in order to make the compression welding clamp applicable to the bonding of products of different types and different sizes, a through groove 7 is formed in the middle of the upper pressing plate 1, and an upper fixing block 8 is detachably installed in the through groove 7, as shown in Figure 6 , a bonding operation hole 9 is formed in the middle of the upper fixing block 8; the bonding operation hole 9 is located directly above the rectangular positioning block 6.

[0030] As shown in Figure 3As shown, in order to fix the lower fixed block 4 in the lower pressing plate 2, two buckle grooves 10 are formed on the lower pressing plate 2 and communicated with the installation groove 3; the buckle 12 is installed in the buckle groove 10 through the fastening screw 11, as shown Figure 4 As shown, the lower fixed block 4 is provided with the pressing groove 13 matched with the buckle 12; after the lower fixed block 4 is placed in the installation groove 3, the buckle 12 is placed in the pressing groove 13, and the lower fixed block 4 is fixed in the installation groove 3 by tightening the fastening screw 11.

[0031] As shown Figure 6 As shown, in order to fix the upper fixed block 8 and the upper pressing plate 1, the connecting plate 14 is arranged on the two sides of the upper fixed block 8, and the connecting plate 14 is connected with the upper pressing plate 1 through the connecting screw 15.

[0032] As shown Figure 1 And Figure 2 As shown, in order to ensure that the upper pressing plate 1 can press the product on the lower pressing plate 2 and the position does not deviate, the positioning column 16 is arranged at the corner of the upper surface of the lower pressing plate 2, the positioning hole 17 corresponding to the positioning column 16 is arranged on the upper pressing plate 1, and the lower pressing plate 2 and the upper pressing plate 1 are matched through the positioning column 16 and the positioning hole 17.

[0033] As shown Figure 1 And Figure 2 As shown, in order to facilitate fixing the upper pressing plate 1 on the clamping jaw of the ASM bonding machine, the limiting clamping block 18 is arranged at the two ends of the upper pressing plate 1, and the mounting hole 19 is formed in the limiting clamping block 18.

[0034] As shown Figure 4 As shown, in order to facilitate the operator to take and place the lower fixed block 4 in the high-temperature environment of bonding, the threaded hole 20 is formed in the lower fixed block 4, so that the long screw is screwed into the threaded hole 20, and the lower fixed block 4 is taken out and placed.

[0035] The universal replaceable type pressure welding clamp provided by the utility model is used, corresponding lower fixed blocks 4 are selected according to the type of gold wire bonding products to be processed and placed in the lower pressing plate 2, the buckle 12 is clamped into the corresponding pressing groove 13 of the lower fixed block 4, and the lower fixed block 4 is fixed with the lower pressing plate 2 by tightening the fastening screw 11.

[0036] Similarly, according to the type of gold wire bonding products to be processed, corresponding upper fixed blocks 8 are selected and fixed in the through groove 7 of the upper pressing plate 1 through the connecting screw 15 and the connecting plate 14;

[0037] Finally, the ceramic tube shell with the chip is placed in the placement slot 5 of the lower fixing block 4, the upper pressing plate 1 is buckled on the clamping jaw part of the ASM bonder, according to the operation rules, the bonder automatically applies pressure to the upper pressing plate 1, so that the upper pressing plate 1 is attached to the seam welding area position of the tube shell, then the wedge of the bonder is inserted into the tube cavity through the bonding operation hole 9, and the gold wire bonding production operation is completed.

[0038] In other embodiments of the present application, the material of the upper fixing block 8 and the lower fixing block 4 is brass.

[0039] Since the upper fixing block 8 is made of brass, in order to avoid the bonding operation hole 9 from being deformed due to long-term contact with the product, the thickness of the bonding operation hole 9 on the upper fixing block 8 is greater than that of the remaining positions.

[0040] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A universal, replaceable pressure welding fixture, characterized in that: Includes an upper pressure plate (1) and a lower pressure plate (2) used in conjunction; The lower pressure plate (2) is provided with an installation groove (3), and a lower fixing block (4) is detachably installed in the installation groove (3). A placement groove (5) is provided in the middle of the upper surface of the lower fixing block (4), and a rectangular positioning block (6) is provided in the middle of the placement groove (5). The upper pressure plate (1) has a through groove (7) in the middle, and an upper fixing block (8) is detachably installed in the through groove (7). The upper fixing block (8) has a bonding operation hole (9) in the middle; the bonding operation hole (9) is located directly above the rectangular positioning block (6).

2. The universal replaceable pressure welding fixture according to claim 1, characterized in that: The lower pressure plate (2) has two snap-fit ​​slots (10) located on both sides of the mounting slot (3) and connected to the mounting slot (3); A buckle (12) is installed in the buckle groove (10) by a fastening screw (11), and a pressing groove (13) adapted to the buckle (12) is provided on the lower fixing block (4).

3. The universal replaceable pressure welding fixture according to claim 1, characterized in that: The upper fixing block (8) has connecting plates (14) on both sides, and the connecting plates (14) are connected to the upper pressure plate (1) by connecting screws (15).

4. The universal replaceable pressure welding fixture according to claim 1, characterized in that: The lower pressure plate (2) has a positioning post (16) at the corner of its upper surface, and the upper pressure plate (1) has a positioning hole (17) corresponding to the positioning post (16). The lower pressure plate (2) and the upper pressure plate (1) cooperate through the positioning post (16) and the positioning hole (17).

5. The universal replaceable pressure welding fixture according to claim 1, characterized in that: Both ends of the upper pressure plate (1) are provided with limiting blocks (18), and the limiting blocks (18) are provided with mounting holes (19).

6. The universal replaceable pressure welding fixture according to claim 1, characterized in that: The lower fixing block (4) has a threaded hole (20).

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