Clamping device and lead bonding equipment
By combining the positioning components of the clamping device with tooling fixtures, the problem of repeated positioning difficulties in traditional bonding equipment is solved, enabling precise product positioning and multi-product compatibility, reducing equipment costs, and improving welding quality and cost-effectiveness.
Patent Information
- Application Number
- CN202422665930.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional bonding equipment cannot effectively reposition products, resulting in poor welding quality and increased costs.
A clamping device including positioning components and tooling fixtures is adopted. By combining the positioning components and tooling fixtures, the product can be accurately fixed and repeatedly positioned. Combined with the adjustment mechanism, multiple products can be adapted.
It improved the convenience and accuracy of product positioning, reduced equipment costs, and increased product yield and equipment cost-effectiveness.
Smart Images
Figure CN223743635U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of semiconductor packaging technology, and more specifically, to a clamping device and a wire bonding apparatus including the clamping device. Background Technology
[0002] The chip packaging process typically includes a bonding process, which involves wire bonding the circuit chip to the pads of the lead frame using gold wires. Traditional bonding equipment performs bonding manually, which is slow, results in poor wire bonding quality, and has low positioning accuracy.
[0003] To adapt to the increasing diversification of semiconductor packaging products in the market, new packaging types are emerging one after another. However, these wire bonding devices cannot effectively and repeatedly position the products, resulting in poor welding quality and increased costs, failing to meet the diverse product demands of the market. Utility Model Content
[0004] The technical problem to be solved by the embodiments of this application is that traditional bonding equipment cannot effectively reposition the product, resulting in poor welding quality and increased costs.
[0005] To address the aforementioned technical problems, this application provides a clamping device that employs the following technical solution, including:
[0006] Positioning components;
[0007] The tooling fixture is fixed on the positioning component by the positioning function of the positioning component and is used to place the product;
[0008] When the clamping device clamps the product, the product is fixed inside the tooling fixture by the positioning function of the tooling fixture.
[0009] Furthermore, the tooling fixture includes a material platform, a first positioning block, and a first clamping assembly for fixing the product. The first positioning block is disposed on the material platform and is used to position the product.
[0010] Furthermore, the first clamping assembly includes a pressure block and a driving member that is linked to the pressure block, the driving member being used to drive the pressure block to fix the product.
[0011] Furthermore, the first clamping assembly also includes a connector fixed on the material platform, and the pressure block and the driving member are respectively rotatably mounted on the connector.
[0012] Furthermore, the driving component is provided with a first driving surface and a reset surface, and the distance between the reset surface and the rotation axis of the driving component is less than the distance between the first driving surface and the rotation axis of the driving component.
[0013] Furthermore, the pressure block is provided with a connecting end, a pressing surface, and a second driving surface. The pressing surface is used to abut against the product, and the second driving surface abuts against the first driving surface and the reset surface.
[0014] Furthermore, the positioning component includes a heating plate, a second positioning block, and a second clamping component. The second positioning block and the second clamping component are disposed on the heating plate and are used to clamp and position the tooling fixture.
[0015] Furthermore, the second clamping assembly includes a jaw and a spring, the jaw being rotatably mounted on the heating plate, the two ends of the spring abutting against the jaw and the heating plate respectively, and the jaw having a tendency to abut against the tooling fixture.
[0016] Furthermore, the clamping device also includes an adjustment mechanism, which includes a bracket and an adjustment device for adjusting the position of the positioning component on the bracket. The adjustment device includes a driver, a lead screw assembly linked to the driver, and a transmission component linked to the lead screw assembly. The positioning component is fixedly mounted on the transmission component, and the transmission component is slidably mounted on the bracket. The driver drives the transmission component and the positioning component to move relative to the bracket through the lead screw assembly.
[0017] To address the aforementioned technical problems, this application also provides a wire bonding device, which employs the following technical solution: the wire bonding device includes a workbench assembly, a welding head system, and the clamping device.
[0018] Compared with the prior art, the embodiments of this application have the following advantages: the tooling fixture of this application can fix the product in a fixed position, and the positioning component can also fix the tooling fixture in a fixed position, so that the product can be repeatedly and accurately positioned on the clamping device, avoiding poor quality during welding and improving the convenience and accuracy of product positioning. Attached Figure Description
[0019] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is one of the structural schematic diagrams of the clamping device provided in the embodiments of this application;
[0021] Figure 2This is a second schematic diagram of the clamping device provided in the embodiments of this application;
[0022] Figure 3 This is an exploded view of the clamping device provided in the embodiments of this application;
[0023] Figure 4 This is a longitudinal sectional view of the clamping device provided in the embodiments of this application;
[0024] Figure 5 yes Figure 4 Enlarged diagram of A in the middle;
[0025] Figure 6 This is a cross-sectional view of the clamping device provided in the embodiment of this application;
[0026] Figure 7 This is an exploded view of the tooling fixture provided in the embodiments of this application;
[0027] Figure 8 This is an exploded view of the positioning component provided in an embodiment of this application;
[0028] Figure 9 This is a schematic diagram of the structure of the pressure block provided in the embodiment of this application;
[0029] Figure 10 This is a schematic diagram of the structure of the driving component provided in the embodiments of this application;
[0030] Figure 11 This is a schematic diagram of the structure of the bracket provided in the embodiment of this application;
[0031] Figure 12 This is a schematic diagram of the transmission component provided in the embodiments of this application.
[0032] Reference numerals: 100, Positioning component; 200, Tooling fixture; 10, Product; 1, Material table; 11, Anti-scalding handle; 2, First positioning block; 3, Pressure block; 31, Connecting end; 32, Pressing surface; 33, Second driving surface; 4, Driving component; 41, First driving surface; 42, Reset surface; 5, Connecting component; 6, Heating plate; 7, Second positioning block; 71, Second pressing edge; 8, Gripper; 80, First pressing edge; 81, Spring; 82, Handle; 300, First clamping component; 400, Second clamping component; 500, Adjusting mechanism; 9, Bracket; 91, Driver; 92, Lead screw assembly; 921, Lead screw; 922, Lead screw nut; 93, Transmission component. Detailed Implementation
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0035] As attached Figure 1 To be continued Figure 12 As shown, this application embodiment provides a clamping device, which adopts the following technical solution: The clamping device includes:
[0036] Positioning component 100;
[0037] The tooling fixture 200 is fixed on the positioning component 100 by the positioning function of the positioning component 100, and is used to place the product 10;
[0038] When the clamping device clamps the product 10, the product 10 is fixed in the tooling fixture 200 by the positioning function of the tooling fixture 200.
[0039] The tooling fixture 200 can fix and position the product 10, and the positioning component 100 can also fix and position the tooling fixture 200, so that the product 10 can be repeatedly and accurately positioned on the clamping device, avoiding poor quality during welding, improving the convenience and accuracy of product positioning. At the same time, different tooling fixtures 200 can be replaced to adapt to different products 10, so that the clamping device can be adapted to more wire bonding equipment. It is inexpensive, easy to maintain, reduces equipment costs, and makes the equipment more cost-effective.
[0040] As attached Figure 3 To be continued Figure 4 and attached Figure 6 To be continued Figure 7As shown, the tooling fixture 200 further includes a material platform 1, a first positioning block 2, and a first clamping assembly 300 for fixing the product 10. The first positioning block 2 is disposed on the material platform 1 and is used to position the product 10. The first positioning block 2 and the first clamping assembly 300 on the tooling fixture 200 can fix and position the product 10. At the same time, the positioning assembly 300 can also fix and position the tooling fixture 200, so that the product 10 can be repeatedly and accurately positioned on the clamping device, avoiding poor quality during welding, improving the convenience and accuracy of product positioning. At the same time, different tooling fixtures 200 can be used to adapt to different products 10, so that the clamping device can be adapted to more wire bonding equipment. It is inexpensive, easy to maintain, reduces equipment costs, and makes the equipment more cost-effective.
[0041] As attached Figure 4 To be continued Figure 5 Appendix Figure 7 and attached Figure 9 To be continued Figure 10 As shown, the first clamping assembly 300 further includes a pressure block 3 and a driving component 4 linked to the pressure block 3. The driving component 4 is used to drive the pressure block 3 to fix the product 10. The pressure block 3 can repeatedly position the product 10, ensuring that the position remains unchanged during each processing, avoiding poor quality during welding, solving the problem that the product 10 cannot be fixed on older wire bonding equipment, and solving the problem of consistent repeated positioning when products are used in batches on wire bonding equipment, thereby improving the yield of the product 10. At the same time, different tooling fixtures 200 can be used to adapt to different products 10, making the clamping device compatible with more wire bonding equipment, reducing equipment costs, and making the equipment more cost-effective.
[0042] As attached Figure 4 To be continued Figure 5 Appendix Figure 7 and attached Figure 9 To be continued Figure 10As shown, the first clamping assembly 300 further includes a connector 5 fixed on the material table 1. The pressure block 3 and the driving member 4 are rotatably mounted on the connector 5. When the driving member 4 rotates, it drives the pressure block 3 to rotate, thereby fixing the product 10. By rotating the pressure block 3, the product 10 is fixed, preventing it from floating up and affecting the bonding quality. Simultaneously, the product 10 presses against the first positioning block 2, ensuring its position remains constant during each processing cycle. For repeated feeding of the same product, simply rotating the driving member 4 is sufficient to open and close the first clamping assembly 300 of the cam-side clamping mechanism. The operation is simple, and locking and unlocking are convenient and quick.
[0043] Furthermore, the drive element 4 is configured as a cam-rotating handle, and the rotation of the drive element 4 can drive the pressure block 3 to rotate.
[0044] As attached Figure 4 To be continued Figure 5 Appendix Figure 7 and attached Figure 9 To be continued Figure 10 As shown, the driving member 4 is further provided with a first driving surface 41 and a reset surface 42. The distance between the reset surface 42 and the rotation axis of the driving member 4 is less than the distance between the first driving surface 41 and the rotation axis of the driving member 4. When the driving member 4 is rotated so that the first driving surface 41 abuts against the connecting member 5, the driving member 4 drives the pressure block 3 to rotate, thereby pressing the product 10 with the pressure block 3. When the driving member 4 is rotated so that the reset surface 42 abuts against the pressure block 3, the pressure block 3 releases its pressure on the product 10. By rotating the drive component 4, surfaces at different distances from the rotation center come into contact with the pressure block 3, thereby controlling the pressure block 3 to swing away from the rotation center of the drive component 4 or lose the driving force for swinging. This allows the pressure block 3 to quickly lock the product 10, enabling repeated positioning of the product 10 and ensuring that the position remains unchanged during each processing. This avoids poor quality during welding, solves the problem that the product 10 cannot be fixed on older wire bonding equipment, and addresses the issue of consistent repeated positioning when products are used in batches on wire bonding equipment, thereby improving the yield rate of the product 10.
[0045] Furthermore, the first driving surface 41 is arc-shaped and the reset surface 42 is planar. The arc-shaped first driving surface 41 is conducive to the rotation of the driving component 4, reduces friction, improves rotation efficiency, prevents wear of the pressure block 3 and the driving component 4, and improves service life.
[0046] As attached Figure 4To be continued Figure 5 Appendix Figure 7 and attached Figure 9 To be continued Figure 10 As shown, the pressure block 3 is further provided with a connecting end 31, a pressing surface 32 and a second driving surface 33. The pressing surface 32 is used to abut against the product 10, and the second driving surface 33 abuts against the first driving surface 41 and the reset surface 42, so that the driving member 4 drives the pressure block 3 to swing around the connecting end 31. The connecting end 31 is located at one end of the pressure block 3, and the pressing surface 32 and the second driving surface 33 are located at the other end of the pressure block 3. The pressing surface 32 and the second driving surface 33 are correspondingly arranged on both sides of the pressure block 3, so that the driving member 4 drives the pressure block 3 to swing around the connecting end 31. That is, the pressing surface 32 located at the end away from the connecting end 31 can press the product 10 downward, so that the product 10 will not float after being fixed, thus avoiding affecting the bonding quality. At the same time, the product 10 will press against the first positioning block 2 after being pressed, ensuring that the processing position remains unchanged each time. For the same product, the loading process can be repeated by simply rotating the driving member 4 to open and close the first clamping component 300 of the cam side clamping mechanism. The operation is simple, and locking and unlocking are convenient and quick.
[0047] Furthermore, the pressing surface 32 is provided with anti-slip teeth, which enhance the pressing effect of the pressing surface 32, preventing the product 10 from floating after fixing and avoiding affecting the bonding quality. The first positioning block 2 is U-shaped, which facilitates the three-sided positioning of the product 10. Finally, the pressing block 3 is used to press and position it, improving the positioning accuracy and effectively preventing the product 10 from moving. This ensures that the product 10 is positioned in the same position each time, allowing the product 10 to be repeatedly positioned on the clamping device. This ensures the flatness of the wire bonding process, avoids poor quality during welding, improves the convenience and accuracy of product positioning, and meets the customer's pursuit of cost-effectiveness.
[0048] Furthermore, the tooling fixture 200 also includes a heat-resistant handle 11, which is fixedly connected to the material platform 1 to facilitate lifting the tooling fixture 200 and avoid direct contact with the material platform 1, thus preventing burns. The driving component 4 and the connecting component 5 are bolted to the material platform 1. The material platform 1 is also provided with a groove 12 for accommodating the connecting component 5 and restricting its rotation, so that the driving component 4 is rotatably mounted on the connecting component 5, and the connecting component 5 is fixed in both the axial and circumferential directions.
[0049] Furthermore, in addition to the above-described embodiments, the first clamping assembly 300 can also use set screws, lateral positioning clamps (such as frog clamps, OK clamps), elbow clamps, and wedge structures to fix and position the product 10.
[0050] As attached Figure 4 Appendix Figure 6 and attached Figure 8 As shown, the positioning component 100 further includes a heating plate 6, a second positioning block 7, and a second clamping component 400. The second positioning block 7 and the second clamping component 400 are disposed on the heating plate 6 and are used to clamp and position the tooling fixture 200. Using the second positioning block 7 and the second clamping component 400 to position the tooling fixture 200 improves positioning accuracy, effectively prevents the tooling fixture 200 from moving, and ensures that each positioning is in the same position. This allows the product 10 to be repeatedly positioned on the clamping device, ensuring the flatness of the wire bonding process, avoiding poor quality during welding, improving the convenience and accuracy of product positioning, and meeting customers' pursuit of cost-effectiveness. Simultaneously, after fixing, the material platform 1 of the tooling fixture 200 is tightly fitted with the heating plate 6, which facilitates the transfer of heat from the heating plate 6 to the material platform 1, and then to the product 10, ensuring the temperature uniformity requirement of the bonding process and promoting the bonding of the metal leads and the pads.
[0051] As attached Figure 4 Appendix Figure 6 and attached Figure 8 As shown, the second clamping assembly 400 further includes a jaw 8 and a spring 81. The jaw 8 is rotatably mounted on the heating plate 6, and the two ends of the spring 81 abut against the jaw 8 and the heating plate 6 respectively. The jaw 8 tends to abut against the tooling fixture 200. Through the clamping action of the jaw 8, the tooling fixture 200 can be fixedly positioned on the heating plate 6 of the positioning assembly 100. The jaw 8 fixes quickly and stably, effectively preventing the tooling fixture 200 from moving and ensuring that it is positioned in the same position each time.
[0052] Furthermore, the gripper 8 is also provided with a handle 82, which facilitates quick lifting of the gripper 8 and placement into the tooling fixture 200. At the same time, the gripper 8 is provided with an outwardly protruding first pressing edge 80, and the second positioning block 7 is provided with an outwardly protruding second pressing edge 71. The side of the material table 1 is inclined, so that the first pressing edge 80 and the second pressing edge 71 can abut against the side of the material table 1 to press the material table 1, so that the material table 1 will not float after being fixed, avoiding affecting the bonding quality, ensuring that the position remains unchanged in each processing, and making the operation simple and locking and unlocking convenient and quick.
[0053] As attached Figure 3 To be continued Figure 4 Appendix Figure 6 and attached Figure 11 To be continued Figure 12 As shown, the clamping device further includes an adjustment mechanism 500, which includes a bracket 9 and an adjustment device for adjusting the position of the positioning component 100 on the bracket 9. The adjustment device includes a driver 91, a lead screw assembly 92 linked with the driver 91, and a transmission component 93 linked with the lead screw assembly 92. The positioning component 100 is fixedly mounted on the transmission component 93, and the transmission component 93 is slidably mounted on the bracket 9. The driver 91 drives the transmission component 93 and the positioning component 100 to move relative to the bracket 9 through the lead screw assembly 92. The positioning component 100 is mounted on the adjustment mechanism 500, allowing the positioning component 100 to adjust its height via the adjustment mechanism 500. This enables the positioning component 100 to adapt to the height of multiple products. It has a simple structure, is directly operated by the driver 91, and the operation process is fully automatic. It is easy to adjust, has wide product applicability, high compatibility, high positioning accuracy, and high clamping reliability, thus improving work efficiency and accuracy, and reducing maintenance costs. At the same time, the lead screw assembly 92 has high precision, and the lead screw drive can achieve precise position control and motion control. It has a compact structure, improving work efficiency and accuracy, and reducing maintenance costs.
[0054] Furthermore, the lead screw assembly 92 includes a lead screw 921 and a lead screw nut 922 linked to the lead screw. The lead screw nut 922 is fixedly connected to the transmission component 93, converting the rotational motion of the driver 91 and the lead screw 921 into the linear motion of the lead screw nut 922 and the transmission component 93. This allows it to adapt to products 10 of different thicknesses and structures, resulting in strong product versatility, no need for customized fixtures, wide applicability, high compatibility, high positioning accuracy, and low maintenance costs. It enables positioning and clamping of various product widths, solving the problem of frequent fixture customization required by traditional wire bonding equipment and improving bonding quality. The driver 91 is also configured as a hand crank or knob, simplifying the operation of the worktable.
[0055] As attached Figure 1 To be continued Figure 12As shown, based on the above-described clamping device, this application embodiment also provides a wire bonding device, which adopts the following technical solution: A wire bonding device includes: a workbench assembly, a welding head system, and the clamping device. The tooling fixture 200 can fix and position the product 10, and the positioning component 100 can also fix and position the tooling fixture 200, so that multiple products 10 can be repeatedly and accurately positioned on the clamping device, avoiding poor welding quality, improving the convenience and accuracy of product positioning, and also allowing different products 10 to be adapted by replacing different tooling fixtures 200, so that the clamping device can be adapted to more wire bonding devices. It is inexpensive, easy to maintain, reduces equipment costs, and makes the equipment more cost-effective.
[0056] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.
Claims
1. A clamping device, characterized in that The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200). The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200). The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200). The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200).
2. The clamping device of claim 1, wherein The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200).
3. The clamping device of claim 2, wherein The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200).
4. The clamping device of claim 3, wherein The utility model relates to a positioning assembly (100) and a work fixture (200) comprising the positioning assembly (100), and the positioning assembly (100) comprises a heating plate (6), a second positioning block (7) and a second clamping assembly (400), the second positioning block (7) and the second clamping assembly (400) are arranged on the heating plate (6), and the second positioning block (7) and the second clamping assembly (400) are used for clamping and positioning a work fixture (200).
5. The clamping device of claim 1, wherein 6. The clamping device according to any one of claims 1 to 5, characterized in that The clamping device further comprises an adjusting mechanism (500), which comprises a support (9), an adjusting device for adjusting the position of the positioning assembly (100) on the support (9), the adjusting device comprising a driver (91), a screw rod assembly (92) linked with the driver (91), and a transmission member (93) linked with the screw rod assembly (92), the positioning assembly (100) being fixedly arranged on the transmission member (93), the transmission member (93) being slidingly arranged on the support (9), the driver (91) driving the transmission member (93) and the positioning assembly (100) to move relative to the support (9) through the screw rod assembly (92).
7. A wire bonding apparatus characterized by comprising: Comprise: a workbench assembly, a welding head system and the clamping device according to any one of claims 1 to 6.