Chip packaging metal wire precision wire pressing device
Patent Information
- Application Number
- CN202522130968.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0003]本实用新型意在提供一种芯片封装金属线精密压线装置，以解决现有技术中，因芯片线材绷紧导致生产质量和产品合格率降低的技术问题
使用时，将电路结构置于压线底板的压线底块上，即位于压线块的下方，气缸驱动连接块下移，带动过渡块、压线块和限位柱下移，限位柱进入限位孔，压线凸起与电路结构两侧的漆包线相抵，并与压线底块产生作用力，连接块和过渡块继续下移，并压缩伸缩件，直到限位柱无法移动，完成压线，气缸驱动连接块复位，使得其他部件复位。
Smart Images
Figure CN224774351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electronic component crimping devices, specifically a precision crimping device for chip packaging metal wires. Background Technology
[0002] Existing network filter chips include a housing, pads, and a circuit structure connected to the pads via enameled wire. During production, the circuit structure is first assembled, then soldered to the pads, and finally the housing is packaged with the pads. However, in the automated assembly process, the enameled wires connecting to the pads are kept taut for ease of processing. During subsequent soldering and packaging, the enameled wires frequently break, leading to product defects and affecting chip production quality and yield. Utility Model Content
[0003] The present invention aims to provide a precision wire pressing device for chip packaging metal wires, so as to solve the technical problem that the production quality and product qualification rate are reduced due to the tightness of chip wires in the prior art.
[0004] This utility model provides the following basic solution: A precision wire crimping device for chip packaging metal wires includes a frame, on which a telescopic member is fixedly connected. The free end of the telescopic member faces downward, and a crimping device for contacting enameled wires is fixedly connected to the free end of the telescopic member.
[0005] Furthermore, the wire pressing device includes a connecting rod, a connecting block, and a wire pressing block. The connecting block is fixedly connected to the free end of the telescopic member. One end of the connecting rod is located inside the connecting block and is slidably connected to the connecting block. The other end of the connecting rod is fixedly connected to the wire pressing block. An elastic element is sleeved on the connecting rod, and the elastic element is located between the connecting block and the wire pressing block.
[0006] Furthermore, the wire clamping device also includes a transition block, which is located between the connecting block and the wire clamping block. The transition block and the connecting block are fixedly connected on the side away from the telescopic member. One end of the connecting rod passes through the transition block and is located inside the connecting block. The connecting rod is slidably connected to both the transition block and the connecting block. Both ends of the elastic member abut against the transition block and the wire clamping block, respectively.
[0007] Furthermore, the pressure block has a container groove and two pressure protrusions on the side away from the connecting rod. The two pressure protrusions are located on both sides of the container groove and can abut against the enameled wire.
[0008] Furthermore, the wire clamp also includes a limiting post, one end of which is fixedly connected to the connecting block, and the other end passes through the transition block and the wire clamping block. The limiting post is slidably connected to the transition block and the wire clamping block.
[0009] Furthermore, a pressure plate is provided below the frame, and a pressure block is provided on the pressure plate directly opposite the pressure block. Multiple limiting holes are provided on the pressure plate, and the limiting holes are located on both sides of the pressure block. The end of the limiting post passing through the pressure block can extend into the limiting hole.
[0010] Furthermore, a sliding column is slidably connected to the frame, with one end of the sliding column passing through the frame and fixedly connected to the connecting block. The sliding column is set vertically.
[0011] Furthermore, the telescopic component uses a cylinder, and the elastic component uses a compression spring.
[0012] Beneficial effects: In use, the circuit structure is placed on the wire pressing base plate, that is, below the wire pressing block. The cylinder drives the connecting block to move down, which in turn moves the transition block, the wire pressing block, and the limiting post down. The limiting post enters the limiting hole, and the wire pressing protrusion abuts against the enameled wire on both sides of the circuit structure and generates force with the wire pressing base plate. The connecting block and the transition block continue to move down and compress the telescopic parts until the limiting post can no longer move, thus completing the wire pressing. The cylinder drives the connecting block to reset, which resets the other components.
[0013] In this design, the frame provides mounting positions for the telescopic components and the wire crimping device, with the telescopic components serving as the power source for the wire crimping device. The wire crimping device applies force to the enameled wire of the chip circuit structure, forming a U-shaped buffer arc on the wire. This prevents the wire from breaking due to excessive tension in subsequent processes. The limiting posts and elastic components prevent excessive force from the wire crimping block applying force to the enameled wire. The U-shaped buffer arc formed on the crimped enameled wire effectively prevents wire breakage during post-spot welding and encapsulation, thus avoiding a decrease in production quality and product yield. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an embodiment of a precision wire pressing device for chip packaging metal wires according to the present invention; Figure 2 This is a schematic diagram of the wire crimping device according to an embodiment of the precision wire crimping device for chip packaging of this utility model; Figure 3 This is a top view of the wire presser in an embodiment of the precision wire pressing device for chip packaging metal wires according to this utility model; Figure 4 This utility model relates to a precision wire pressing device for chip packaging metal wires. Figure 3 AA cross-section view; Figure 5 This is a bottom view of the wire presser in an embodiment of a precision wire pressing device for chip packaging metal wires according to this utility model; Figure 6This utility model relates to a precision wire pressing device for chip packaging metal wires. Figure 5 BB cross-section; Figure 7 This is a schematic diagram of the structure of a precision wire pressing device for chip packaging metal wires according to an embodiment of this utility model. Detailed Implementation
[0015] The following detailed description illustrates the specific implementation methods: The reference numerals in the accompanying drawings include: frame 1, telescopic component 2, wire presser 3, sliding post 4, wire presser base plate 5, wire presser base block 6, limiting hole 7, connecting rod 301, connecting block 302, transition block 303, wire presser block 304, limiting post 305, and container groove 306.
[0016] Example This solution is applied to the production and processing of network filter chips. The network filter chip includes a shell, pads, and a circuit structure connected to the pads via enameled wires. For ease of use, the solder joints on the pads are usually located on both sides. Therefore, the multiple enameled wires leading out from the circuit structure are also distributed on both sides and soldered to the solder joints on the pads respectively.
[0017] A precision wire crimping device for chip packaging metal wires, as shown in the attached figure. Figure 1 As shown, the device includes a frame 1, on which a telescopic member 2 is fixedly connected. The free end of the telescopic member 2 faces downward and passes through the frame 1. The frame 1 is n-shaped. In this embodiment, the telescopic member 2 is a cylinder, and the base of the cylinder is fixed to the frame 1 with bolts. The free end of the telescopic member 2 is the telescopic shaft of the cylinder, and the telescopic direction of the telescopic member 2 is the axial direction of the telescopic shaft, both of which are vertically arranged. The structure and installation of the cylinder are very mature existing technologies, so they will not be described in detail. The frame 1 provides an installation position for the telescopic member 2 and the wire clamping device 3, and the telescopic member 2 provides power to the wire clamping device 3.
[0018] As attached Figure 2 As shown, the free end of the telescopic component 2 is fixedly connected to a wire clamp 3 for contacting the enameled wire. (See attached diagram) Figure 3-6 As shown, the wire pressing device 3 includes a connecting rod 301, a connecting block 302, a transition block 303, and a wire pressing block 304. The transition block 303 is located between the connecting block 302 and the wire pressing block 304, meaning that the connecting block 302, the transition block 303, and the wire pressing block 304 are arranged sequentially in the vertical direction. The connecting block 302 is fixedly connected to the free end of the telescopic member 2, and the transition block 303 is fixedly connected to the side of the connecting block 302 away from the telescopic member 2. In this embodiment, the free end of the telescopic shaft passes through the frame 1 and is fixedly connected to the connecting block 302 of the wire pressing device 3 via a flange. The transition block 303 is fixedly connected to the connecting block 302 via bolts.
[0019] One end of the connecting rod 301 is located inside the connecting block 302 and is slidably connected to the connecting block 302. The other end of the connecting rod 301 is fixedly connected to the pressure block 304. The connecting rod 301 is vertically oriented. Specifically, one end of the connecting rod 301 passes through the transition block 303 and is located inside the connecting block 302. The connecting rod 301 is slidably connected to both the transition block 303 and the connecting block 302. That is, the connecting block 302 has a sliding groove, and the transition block 303 has a sliding hole. One end of the connecting rod 301 passes through the sliding hole and is slidably connected to the sliding groove. An anti-detachment block is provided at the end of the connecting rod 301 located in the sliding groove, and an anti-detachment ring is provided at the opening of the sliding groove. The anti-detachment block can abut against the anti-detachment ring. The other end of the connecting rod 301 is fixedly connected to the pressure block 304. An elastic element is sleeved on the connecting rod 301. The elastic element is located between the connecting block 302 and the pressure block 304. Specifically, the two ends of the elastic element abut against the transition block 303 and the pressure block 304, respectively.
[0020] In this embodiment, the connecting rod 301 and the wire pressing block 304 are fixedly connected by screws. There are four connecting rods 301, which are rectangularly distributed. Each of the four connecting rods 301 is fitted with an elastic element, meaning there are also four elastic elements. The elastic elements are compression springs. The transition block 303 and the wire pressing block 304 each have annular spring grooves on opposite sides. The spring grooves are coaxially arranged with the connecting rod 301, and the two ends of the compression spring are located in the two spring grooves respectively. The elastic elements prevent the wire pressing device 3 from pressing down excessively, thereby preventing the wire pressing device 3 from applying excessive force to the enameled wire.
[0021] The wire clamping device 3 also includes a limiting post 305, which is vertically arranged. One end of the limiting post 305 is fixedly connected to the connecting block 302, and the other end passes through the transition block 303 and the wire clamping block 304. One end of the limiting post 305 protrudes from the wire clamping block 304, and the limiting post 305 is slidably connected to both the transition block 303 and the wire clamping block 304. In this embodiment, one end of the limiting post 305 is fixedly connected to the connecting block 302 by a screw. There are two limiting posts 305, which are located on both sides of the four connecting rods 301. The setting of the limiting post 305 further avoids the wire clamping device 3 from pressing down excessively, thereby avoiding the wire clamping device 3 from applying excessive force to the enameled wire.
[0022] The wire pressing block 304 has a container groove 306 and two wire pressing protrusions on the side away from the connecting rod 301. The two wire pressing protrusions are located on both sides of the container groove 306 and can abut against the enameled wire. The container groove 306 is a through groove, and the length direction of the container groove 306 is the chip conveying direction. The container groove 306 is used to accommodate the circuit structure of the chip when the wire pressing protrusion abuts against the enameled wire, avoiding compression of the circuit structure during wire pressing. In this embodiment, the wire pressing protrusions are integrally formed with the wire pressing block 304. The setting of the wire pressing protrusions causes a U-shaped buffer arc to be formed on the enameled wire when the wire pressing device 3 applies force to the enameled wire, thereby preventing the wire from being kept taut and being pulled apart during subsequent production and processing.
[0023] A sliding column 4 is slidably connected to the frame 1. One end of the sliding column 4 passes through the frame 1 and is fixedly connected to the connecting block 302. The sliding column 4 is vertically arranged. In this embodiment, the sliding column 4 and the connecting block 302 are fixedly connected by bolts. There are four sliding columns 4, which are rectangularly distributed. The arrangement of the sliding columns 4 ensures the moving direction of the wire presser 3 and improves the stability of the wire presser 3's movement.
[0024] As attached Figure 7 As shown, a wire pressing base plate 5 is provided below the frame 1, and a wire pressing base block 6 is provided on the wire pressing base plate 5, directly opposite the wire pressing block 304. Multiple limiting holes 7 are provided on the wire pressing base plate 5, located on both sides of the wire pressing base block 6. One end of the limiting post 305, passing through the wire pressing block 304, can extend into the limiting hole 7. The length direction of the wire pressing base block 6 is parallel to the chip conveying direction, and the limiting holes 7 on both sides of the wire pressing base block 6 are evenly distributed along its length. In this embodiment, both the frame 1 and the wire pressing base plate 5 are fixed to the worktable with bolts, and the wire pressing base block 6 is fixedly connected to the wire pressing base plate 5 with bolts. The number of limiting holes 7 is determined by those skilled in the art based on the application scenario, and does not require creative effort from them. The setting of the wire pressing base block 6, in conjunction with the wire pressing block 304, applies force to the enameled wire, causing it to form a buffer arc.
[0025] In use, the circuit structure is placed on the wire pressing base plate 5, specifically on the wire pressing base block 6, below the wire pressing block 304. A cylinder drives the connecting block 302 downwards, causing the transition block 303, wire pressing block 304, and limiting post 305 to move downwards as well. The limiting post 305 enters the limiting hole 7, and the wire pressing protrusion abuts against the enameled wire on both sides of the circuit structure, generating force with the wire pressing base block 6. The connecting block 302 and transition block 303 continue to move downwards, compressing the telescopic component 2 until the limiting post 305 can no longer move, completing the wire pressing process. The cylinder then drives the connecting block 302 to reset, causing other components to reset as well. A U-shaped buffer arc is formed on the enameled wire after wire pressing. The presence of this buffer arc effectively prevents the wire from breaking during the encapsulation process after taut spot welding, thus avoiding a decrease in production quality and product qualification rate.
[0026] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A chip package metal wire precision wire pressing device, comprising a rack, characterized in that: A telescopic component is fixedly connected to the frame, with the free end of the telescopic component facing downwards. A wire clamp for contacting the enameled wire is fixedly connected to the free end of the telescopic component.
2. The chip packaging metal wire precision crimping device according to claim 1, wherein: The wire clamping device includes a connecting rod, a connecting block, and a wire clamping block. The connecting block is fixedly connected to the free end of the telescopic component. One end of the connecting rod is located inside the connecting block and is slidably connected to the connecting block. The other end of the connecting rod is fixedly connected to the wire clamping block. An elastic element is sleeved on the connecting rod and is located between the connecting block and the wire clamping block.
3. The chip packaging metal wire precision crimping device according to claim 2, wherein: The wire clamp also includes a transition block, which is located between the connecting block and the wire clamping block. The transition block and the connecting block are fixedly connected on the side away from the telescopic member. One end of the connecting rod passes through the transition block and is located inside the connecting block. The connecting rod is slidably connected to both the transition block and the connecting block. The two ends of the elastic member abut against the transition block and the wire clamping block, respectively.
4. The chip packaging metal wire precision crimping device according to claim 2 or 3, characterized in that: The pressure block has a container groove and two pressure protrusions on the side away from the connecting rod. The two pressure protrusions are located on both sides of the container groove and can abut against the enameled wire.
5. The precision wire pressing device for chip packaging metal wires according to claim 4, characterized in that: The wire clamp also includes a limiting post. One end of the limiting post is fixedly connected to the connecting block, and the other end passes through the transition block and the wire clamping block. The limiting post is slidably connected to the transition block and the wire clamping block.
6. The precision wire crimping device for chip packaging metal wires according to claim 5, characterized in that: The frame is equipped with a pressing base plate, and the pressing base plate is equipped with a pressing bottom block facing the pressing block. The pressing base plate has multiple limiting holes, which are located on both sides of the pressing bottom block. The end of the limiting post that passes through the pressing block can extend into the limiting hole.
7. The chip packaging metal wire precision crimping device according to claim 6, wherein: A sliding column is slidably connected to the frame. One end of the sliding column passes through the frame and is fixedly connected to the connecting block. The sliding column is set vertically.
8. The chip package metal wire precision crimping device of claim 7, wherein: The telescopic component uses a cylinder, and the elastic component uses a compression spring.