Near-wall bonding auxiliary clamp of manual wedge bonding machine

Abstract

The utility model provides a near-wall bonding auxiliary clamp of a manual wedge bonding machine, an operation surface is arranged at the top of an operation table, a product box is placed on the operation surface, and the operation surface is obliquely arranged from one end close to a welding pin of the wedge bonding machine to one end far away from the welding pin of the wedge bonding machine from low to high; the first locking mechanism is arranged on the operation surface, and the first locking mechanism is used for locking the product box, so that the product box and the operation surface are relatively fixed; and the second locking mechanism is arranged at the bottom of the operation table and is used for fixing the operation table on a heating table of the wedge bonding machine. According to the utility model, the design of the inclined operation surface optimizes the space adaptability of the welding pin and the near-wall area of the product box, so that the near-wall operation can be realized without depending on a special wire clamp or a customized chopper in the bonding process; the first locking mechanism ensures that the product box is stably connected with the operation table, and the second locking mechanism ensures the bonding precision by fixing the relative position of the operation table and the heating table.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, and more specifically, it relates to a near-wall bonding auxiliary fixture for a manual wedge bonding machine. Background Technology

[0002] The advantages of wedge bonding include small solder joint deformation, narrow pad spacing, low lead arc, small bonding pitch, and the ability to achieve a smaller arc. Therefore, it has good circuit performance and is often used for interconnecting circuit paths. It occupies an important position in high-precision and high-reliability packaging manufacturing.

[0003] However, wedge bonding is a unidirectional welding process. This directionality requires that the chip and other pads must always be in the wedge direction during the welding process, that is, the solder joint must be formed in a direction parallel to the lead. Therefore, in some locations near the product casing wall, insufficient space may cause the bonding tool to be bumped and broken, making bonding impossible.

[0004] Current methods for addressing this problem often involve replacing the wire clamp to change the wire feeding method or using a specially customized wedge. While these methods improve near-wall bonding to some extent, they are complex to operate and costly. Moreover, the shape of a customized wedge varies considerably, and the more drastic the change in wedge shape, the worse the bonding stability. Utility Model Content

[0005] The purpose of this utility model is to provide a near-wall bonding auxiliary fixture for a manual wedge bonding machine to solve the problem of obstructed vision or insufficient gap for bonding caused by the close distance between the pad and the box wall in manual wedge bonding.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A manual wedge bonding machine near-wall bonding auxiliary fixture is provided, including an operating table, a first locking mechanism, and a second locking mechanism. The operating table has an operating surface at its top, on which a product box is placed. The operating surface is arranged at an angle from low to high, from the end closest to the welding pin of the wedge bonding machine to the end furthest from the welding pin. The first locking mechanism is located on the operating surface and is used to lock the product box, thereby fixing the product box relative to the operating surface. The second locking mechanism is located at the bottom of the operating table and is used to fix the operating table to the hot plate of the wedge bonding machine.

[0007] In one possible implementation, the operating table is plate-shaped, and the top surface of the operating table is arranged at an angle, such that the cross-section of the operating table is a right trapezoid.

[0008] In one possible implementation, the first locking mechanism includes a plurality of clamping blocks and a first locking assembly, wherein the plurality of clamping blocks are slidably disposed on the operating surface and are respectively disposed on both sides of the product box to be fixed, and the clamping blocks abut against the product box to fix the product box; the first locking assembly is disposed between the clamping blocks and the operating table, and when the first locking assembly is locked, the clamping blocks are fixed relative to the operating table.

[0009] In one possible implementation, the clamping block includes a first clamping plate and a second clamping plate, wherein the first clamping plate is arranged parallel to the operating surface, and the first locking assembly is disposed between the first clamping plate and the operating table; the second clamping plate is disposed at one end of the first clamping plate, and the second clamping plate is arranged vertically so that the clamping block is L-shaped, and the second clamping plate abuts against the product box.

[0010] In one possible implementation, the second clamping plate is made of a soft material.

[0011] In one possible implementation, the first locking assembly includes a plurality of first fixing holes and a plurality of second fixing holes, wherein the plurality of first fixing holes are evenly arranged in a plurality of hole strips along the sliding direction of the clamping block; the plurality of second fixing holes are provided on the first clamping plate, and bolts are screwed into the corresponding first fixing holes and second fixing holes, so that the clamping block is fixed relative to the operating table.

[0012] In one possible implementation, the second fixing hole is a strip hole.

[0013] In one possible implementation, the second locking mechanism includes two support plates and a plurality of second locking components. The two support plates are detachably disposed at both ends of the operating table, and the support plates and the operating table enclose a locking cavity, in which a portion of the hot stage of the bonding machine is disposed. The plurality of second locking components are disposed on the support plates, and the second locking components are used to abut against the hot stage of the bonding machine.

[0014] In one possible implementation, the second locking assembly includes a Torx bolt and a protective sleeve, wherein the Torx bolt is screwed onto the support plate, with one end of the Torx bolt extending into the locking cavity; the protective sleeve is screwed onto the Torx bolt, and a protective plate is provided at the top of the protective sleeve, the area of ​​which is larger than the cross-sectional area of ​​the protective sleeve.

[0015] In one possible implementation, the support plate includes a connecting plate and a mounting plate, wherein the connecting plate is vertically arranged and has threaded holes through which bolts pass and are screwed onto the operating table; the mounting plate is L-shaped, and the horizontally arranged portion of the mounting plate is located at the top of the vertically arranged portion, one end of the horizontally arranged portion of the mounting plate is connected to the bottom end of the connecting plate, and the star bolts are screwed onto the vertically arranged portion of the mounting plate.

[0016] The beneficial effects of the manual wedge bonding machine near-wall bonding auxiliary fixture provided by this utility model are as follows: Compared with the prior art, this utility model optimizes the spatial adaptability of the welding pin and the near-wall area of ​​the product box through the design of the inclined operating surface, so that the bonding process can achieve near-wall operation without relying on special wire clamps or customized wedges; the first locking mechanism ensures a stable connection between the product box and the operating table, while the second locking mechanism ensures bonding accuracy by fixing the relative position of the operating table and the heating table. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the near-wall bonding auxiliary fixture for a manual wedge bonding machine provided in an embodiment of the present invention;

[0019] Figure 2 This is a front view of the near-wall bonding auxiliary fixture for a manual wedge bonding machine provided in an embodiment of the present invention.

[0020] The labels for the attached figures are as follows:

[0021] 1. Control panel; 2. First locking mechanism; 3. Second locking mechanism;

[0022] 101. Operating surface;

[0023] 201. Clamping block; 202. First locking assembly; 203. First clamping plate; 204. Second clamping plate; 205. First fixing hole; 206. Second fixing hole;

[0024] 301. Support plate; 302. Second locking assembly; 303. Torx bolt; 304. Protective sleeve; 305. Connecting plate; 306. Mounting plate; 307. Protective plate. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0027] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] The terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0030] The present invention will now describe the near-wall bonding auxiliary fixture for a manual wedge bonding machine.

[0031] Please refer to the following: Figures 1 to 2The manual wedge bonding machine near-wall bonding auxiliary fixture includes an operating table 1, a first locking mechanism 2, and a second locking mechanism 3. The operating table 1 has an operating surface 101 on its top, and the product box is placed on the operating surface 101. The operating surface 101 is arranged at an angle from low to high from the end near the welding needle of the wedge bonding machine to the end away from the welding needle of the wedge bonding machine. The first locking mechanism 2 is located on the operating surface 101 and is used to lock the product box so that the product box is relatively fixed to the operating surface 101. The second locking mechanism 3 is located at the bottom of the operating table 1 and is used to fix the operating table 1 on the hot plate of the wedge bonding machine.

[0032] The beneficial effects of the near-wall bonding auxiliary fixture for the manual wedge bonding machine provided in this embodiment are as follows: Compared with the prior art, the near-wall bonding auxiliary fixture for the manual wedge bonding machine provided in this embodiment optimizes the spatial adaptability of the welding pin and the near-wall area of ​​the product box through the design of the inclined operating surface 101, so that the bonding process can achieve near-wall operation without relying on special wire clamps or customized wedges; the first locking mechanism 2 ensures that the product box and the operating table 1 are firmly connected, and the second locking mechanism 3 ensures the bonding accuracy by fixing the relative position of the operating table 1 and the hot table.

[0033] In this embodiment, the operating table 1 is plate-shaped, and the top surface of the operating table 1 is inclined, so that the cross-section of the operating table 1 is a right trapezoid. The right trapezoidal structure naturally forms a height difference through the inclined operating surface 101, which provides space compensation for near-wall bonding, avoids interference between the welding pin and the box wall, simplifies the design of the operating table 1, and reduces processing costs.

[0034] like Figure 1 As shown, the first locking mechanism 2 includes multiple clamping blocks 201 and a first locking assembly 202. The clamping blocks 201 are slidably disposed on the operating surface 101, and are located on both sides of the product box to be fixed. The clamping blocks 201 abut against the product box to fix it. The first locking assembly 202 is disposed between the clamping blocks 201 and the operating table 1. When the first locking assembly 202 is locked, the clamping blocks 201 are fixed relative to the operating table 1. The sliding clamping blocks 201 can flexibly adjust their clamping position according to the size of the product box, and work with the first locking assembly 202 to achieve rapid locking, significantly improving the adaptability of the clamp and making it suitable for fixing products of different specifications.

[0035] Specifically, the clamping block 201 includes a first clamping plate 203 and a second clamping plate 204. The first clamping plate 203 is arranged parallel to the operating surface 101, and a first locking assembly 202 is disposed between the first clamping plate 203 and the operating table 1. The second clamping plate 204 is disposed at one end of the first clamping plate 203 and is arranged vertically, making the clamping block 201 L-shaped. The second clamping plate 204 abuts against the product box. The L-shaped structure enhances the stability of the product box through bidirectional clamping in both horizontal and vertical directions. The vertical second clamping plate 204 can precisely abut against the box wall to prevent product displacement during the bonding process.

[0036] In addition, the second clamping plate 204 is made of a soft material. Soft materials (such as rubber or engineering plastics) can provide sufficient clamping force while avoiding scratches on the surface of the product box during clamping, making them particularly suitable for protecting vulnerable components in high-precision packaging.

[0037] In this embodiment, the first locking assembly 202 includes multiple first fixing holes 205 and multiple second fixing holes 206. The multiple first fixing holes 205 are evenly arranged as multiple perforated strips along the sliding direction of the clamping block 201. Multiple second fixing holes 206 are located on the first clamping plate 203, and bolts are screwed into the corresponding first fixing holes 205 and second fixing holes 206, fixing the clamping block relative to the operating table 1. Through the cooperation of the multiple perforated strips and the strip-shaped holes, the clamping block 201 can be quickly fixed after minor adjustments in the sliding direction, balancing adjustment accuracy and operational convenience, and reducing assembly time.

[0038] Preferably, the second fixing hole 206 is a strip-shaped hole. The strip-shaped hole design provides additional adjustment margin, which can compensate for machining errors or product box size deviations, further improving the compatibility and fault tolerance of the fixture.

[0039] like Figure 2 As shown, the second locking mechanism 3 includes two support plates 301 and multiple second locking components 302. The two support plates 301 are detachably mounted at both ends of the operating table 1, forming a locking cavity with the support plates 301 and the operating table 1. A portion of the hot stage of the bonding machine is located within the locking cavity. The multiple second locking components 302 are distributed on the support plates 301 and are used to press against the hot stage of the bonding machine. The detachable support plates 301 cooperate with the locking cavity to achieve a stable connection between the operating table 1 and the hot stage, preventing positioning misalignment caused by vibration during bonding and ensuring bonding accuracy.

[0040] Specifically, the second locking assembly 302 includes a Torx bolt 303 and a protective sleeve 304. The Torx bolt 303 is screwed onto the support plate 301, with one end extending into the locking cavity. The protective sleeve 304 is screwed onto the Torx bolt 303, and a protective plate 307 is provided at the top of the protective sleeve 304. The area of ​​the protective plate 307 is larger than the cross-sectional area of ​​the protective sleeve 304. The Torx bolt 303 facilitates manual adjustment of the locking force, and the large-area protective plate 307 of the protective sleeve can distribute pressure, preventing the bolt from directly contacting the hot surface and causing damage, while also improving operational safety.

[0041] Finally, the support plate 301 includes a connecting plate 305 and a mounting plate 306. The connecting plate 305 is vertically arranged and has threaded holes through which bolts pass and are screwed onto the operating table 1. The mounting plate 306 is L-shaped, with its horizontal portion positioned at the top of the vertical portion. One end of the horizontal portion of the mounting plate 306 is connected to the bottom of the connecting plate 305, and a star bolt 303 is screwed onto the vertical portion of the mounting plate 306. The L-shaped mounting plate 306 enhances structural rigidity through combined horizontal and vertical support.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A near-wall bonding auxiliary fixture for a manual wedge bonding machine, characterized in that, include: The operating table (1) has an operating surface (101) on top. The product box is placed on the operating surface (101). The operating surface (101) is arranged from low to high from the end of the welding needle near the wedge bonding machine to the end of the welding needle away from the wedge bonding machine. A first locking mechanism (2) is provided on the operating surface (101). The first locking mechanism (2) is used to lock the product box so that the product box is fixed relative to the operating surface (101). The second locking mechanism (3) is located at the bottom of the operating table (1). The second locking mechanism (3) is used to fix the operating table (1) on the hot plate of the wedge bonding machine.

2. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 1, characterized in that: The operating table (1) is plate-shaped, and the top surface of the operating table (1) is arranged at an angle, so that the cross-section of the operating table (1) is a right trapezoid.

3. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 2, characterized in that, The first locking mechanism (2) includes: Multiple clamping blocks (201) are slidably disposed on the operating surface (101), and the clamping blocks (201) are respectively disposed on both sides of the product box to be fixed. The clamping blocks (201) abut against the product box to fix the product box. A first locking component (202) is disposed between the clamping block (201) and the operating table (1). When the first locking component (202) is locked, the clamping block (201) is fixed relative to the operating table (1).

4. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 3, characterized in that, The clamping block (201) includes: The first clamping plate (203) is arranged parallel to the operating surface (101), and the first locking assembly (202) is disposed between the first clamping plate (203) and the operating table (1); The second clamping plate (204) is disposed at one end of the first clamping plate (203). The second clamping plate (204) is arranged vertically so that the clamping block (201) is L-shaped and the second clamping plate (204) abuts against the product box.

5. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 4, characterized in that: The second clamping plate (204) is made of a soft material.

6. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 5, characterized in that, The first locking assembly (202) includes: Multiple first fixing holes (205) are evenly arranged as multiple perforated strips along the sliding direction of the clamping block (201); Multiple second fixing holes (206) are provided on the first clamping plate (203), and bolts are screwed into the corresponding first fixing holes (205) and second fixing holes (206) to fix the clamping block relative to the operating table (1).

7. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 6, characterized in that: The second fixing hole (206) is a strip hole.

8. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 7, characterized in that, The second locking mechanism (3) includes: Two support plates (301) are detachably disposed at both ends of the operating table (1). The support plates (301) and the operating table (1) enclose a locking cavity, and a portion of the hot table of the bonding machine is disposed within the locking cavity. Multiple second locking components (302) are disposed on the support plate (301), and the second locking components (302) are used to press against the hot plate of the bonding machine.

9. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 8, characterized in that, The second locking assembly (302) includes: A plum bolt (303) is screwed onto the support plate (301), and one end of the plum bolt (303) extends into the locking cavity; A protective sleeve (304) is screwed onto the plum bolt (303), and a protective plate (307) is provided at the top of the protective sleeve (304), the area of ​​the protective plate (307) being larger than the cross-sectional area of ​​the protective sleeve (304).

10. The manual wedge bonding machine near-wall bonding auxiliary fixture as described in claim 9, characterized in that, The support plate (301) includes: A connecting plate (305) is arranged vertically. The connecting plate (305) is provided with threaded holes. Bolts pass through the threaded holes and are screwed onto the operating table (1). Mounting plate (306) is L-shaped, and the horizontal part of the mounting plate (306) is located at the top of the vertical part. One end of the horizontal part of the mounting plate (306) is connected to the bottom end of the connecting plate (305), and the plum bolt (303) is screwed onto the vertical part of the mounting plate (306).

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