A bonding wire machine's platen protection device

Abstract

The utility model relates to wire bonding machine technical field discloses a kind of pressing plate protection devices of wire bonding machine, including workbench, the bottom end of the workbench is fixedly connected with support leg, the bottom end of the workbench is fixedly connected with connecting rod, the bottom end of the connecting rod is fixedly connected with first support plate, by setting reset spring and pressure sensor, buffer and monitoring system are formed by reset spring and pressure sensor in the bottom of operating platform, when pressing plate is excessively pressed due to abnormal situation such as misoperation, mechanical failure, operating platform compression spring, pressure sensor is triggered by rubber pad of top rod, sensor real-time detects pressure value, when exceeding set threshold value, linkage control system such as stop wire bonding action or lifting pressing plate can be controlled, avoid workpiece to be pressed, pressing plate deformation or welding head damage, significantly improve equipment safety and product yield.

Description

Technical Field

[0001] This utility model relates to the field of wire bonding machine technology, specifically to a pressure plate protection device for a wire bonding machine. Background Technology

[0002] Wire bonding machines are key equipment in the electronics manufacturing industry. They are mainly used to interconnect the pins of micro-devices such as semiconductor chips, LEDs, and sensors with substrates such as PCBs and lead frames using fine metal wires such as gold wires and copper wires. They are widely used in industries such as integrated circuit packaging, consumer electronics, and new energy. Their core workflow includes workpiece positioning → pressure plate fixing → welding head welding → quality inspection. Among these, the pressure control of the pressure plate and the protection of the workpiece are key links that affect the welding quality and equipment safety.

[0003] Traditional pressure plates often use rigid structures such as bolt locking or direct cylinder drive. Their pressure regulation relies on manual experience or mechanical limits, making it difficult to monitor the actual pressure value in real time. Furthermore, when the workpiece thickness is uneven, there are positioning deviations, or there are mechanical failures in the equipment, the pressure plate is prone to excessive pressure, which can lead to workpiece damage. For example, microchips or brittle substrates may shatter or have their pins deformed due to overpressure.

[0004] In addition, traditional pressure plate fixing methods, such as bolt locking, are cumbersome and inefficient, and are difficult to adapt to workpieces of different sizes.

[0005] The present invention aims to solve the problems of the prior art, such as the inability to monitor pressure in real time, easy damage to workpieces, inconvenient clamping, and low efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a pressure plate protection device for a wire bonding machine, which solves the problem of workpiece damage caused by excessive pressure of the pressure plate through a pressure monitoring system and a buffer structure; at the same time, it solves the problems of low clamping efficiency and poor applicability of the pressure plate through a quick adjustment and fixing mechanism.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pressure plate protection device for a wire bonding machine, comprising a worktable, The bottom end of the workbench is fixedly connected to a support leg, the bottom end of the workbench is fixedly connected to a connecting rod, and the bottom end of the connecting rod is fixedly connected to a first support plate.

[0008] Furthermore, a limiting groove is provided at the top of the workbench, and limiting plates are fixedly connected to the left and right bottom ends of the workbench.

[0009] Furthermore, an electric telescopic rod is fixedly connected to the top of the first support plate, and a second support plate is fixedly connected to the top of the electric telescopic rod. When the electric telescopic rod extends or retracts, it can drive the second support plate to vertically rise and fall between the support legs, thereby adjusting the height of the operating table. Limiting plates are fixedly connected to the left and right bottom ends of the worktable. These limiting plates are set within the stroke range of the electric telescopic rod to physically limit the maximum stroke of the second support plate, preventing it from excessively extending, retracting, or falling.

[0010] Furthermore, a number of return springs are fixedly connected to the top of the second support plate, and a pressure sensor is provided in the middle of the return springs. The bottom end of the pressure sensor is fixedly connected to the second support plate.

[0011] Furthermore, an operating platform is fixedly connected to the top of the return spring, and a push rod is installed vertically through the middle of the return spring. The top of the push rod is fixedly connected to the bottom of the operating platform, and its bottom corresponds to a pressure sensor mounted on the second support plate, with a rubber pad fixedly connected to its bottom. When the operating platform moves downward due to pressure, the push rod moves downward, directly contacting and triggering the pressure sensor through the rubber pad, thereby achieving real-time detection of the pressure value.

[0012] Furthermore, a rubber pad is fixedly connected to the bottom end of the top rod.

[0013] Furthermore, the top left and right sides of the worktable are provided with sliding grooves extending along their length. An L-shaped buckle is slidably connected inside the sliding groove. The L-shaped buckle can move along the length of the sliding groove, and its flange on one side cooperates with the inner wall of the sliding groove, thereby realizing lateral sliding and stable positioning. The lower end of the L-shaped buckle abuts against a pressure plate. The pressure plate is locked or released by sliding the buckle to fix workpieces of different sizes.

[0014] Compared with the prior art, the beneficial effects of this utility model are: By incorporating a reset spring and pressure sensor, a buffering and monitoring system is formed at the bottom of the operating table. When the pressure plate is excessively pressed down due to abnormal conditions such as misoperation or mechanical failure, the operating table compresses the spring, and the push rod triggers the pressure sensor through the rubber pad. The sensor detects the pressure value in real time, and when it exceeds the set threshold, it can trigger the control system to stop the welding process or raise the pressure plate, preventing workpiece crushing, pressure plate deformation, or welding head damage. This significantly improves equipment safety and product yield. Furthermore, by setting a first support plate, an electric telescopic rod, and a second support plate, the electric telescopic rod on the first support plate drives the second support plate to rise and fall, adjusting the height of the operating table. With the limit plate restricting the maximum stroke, the operating table height can be precisely adjusted according to different workpiece thicknesses or welding process requirements, enhancing the adaptability of the device to diverse production scenarios without requiring further modifications. By changing equipment or adding tooling, operational flexibility is improved. A reset spring and a second support plate are incorporated, allowing the worktable to be flexibly connected to the second support plate rather than rigidly fixed. During welding, when the pressure plate is pressed down normally, the spring absorbs the instantaneous impact force, preventing stress concentration caused by hard contact between the workpiece and the worktable. This protects precision workpieces such as electronic component pins and thin wires from damage, while also reducing equipment operating noise. L-shaped clips and grooves are used; the L-shaped clips in the groove at the top of the worktable can slide laterally, fixing the workpiece by abutting against the pressure plate. The clips have a wide sliding adjustment range, adapting to workpieces of different widths. The clamping process requires no tools; manual locking is quick and easy, saving over 50% of clamping time compared to traditional bolt fixing methods, significantly improving production efficiency. Simultaneously, the pressure plate provides stable positioning, preventing workpiece displacement during welding and ensuring welding accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0017] In the diagram: 1. Workbench; 2. Support leg; 3. Connecting rod; 4. First support plate; 5. Limiting groove; 6. Limiting plate; 7. Electric telescopic rod; 8. Second support plate; 9. Return spring; 10. Pressure sensor; 11. Operating table; 12. Top rod; 13. Rubber pad; 14. Slide groove; 15. L-shaped buckle; 16. Pressure plate. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution for a pressure plate protection device for a wire welding machine: A pressure plate 16 protection device for a wire welding machine includes a worktable 1, a support leg 2 fixedly connected to the bottom end of the worktable 1, a connecting rod 3 fixedly connected to the bottom end of the worktable 1, and a first support plate 4 fixedly connected to the bottom end of the connecting rod 3. By setting the first support plate 4, an electric telescopic rod 7, and a second support plate 8, the electric telescopic rod 7 on the first support plate 4 drives the second support plate 8 to rise and fall, thereby adjusting the height of the operating table 11. The maximum stroke is limited by a limit plate 6, and the device can be adjusted according to different workpiece thicknesses or welding process requirements. The height of the operating platform 11 can be precisely adjusted, enhancing the adaptability of the device to diverse production scenarios. No equipment replacement or additional tooling is required, improving operational flexibility. A limit groove 5 is provided at the top of the operating platform 1, and limit plates 6 are fixedly connected to the left and right bottom ends of the operating platform 1. An electric telescopic rod 7 is fixedly connected to the top of the first support plate 4, and a second support plate 8 is fixedly connected to the top of the electric telescopic rod 7. When the electric telescopic rod 7 extends or retracts, it drives the second support plate 8 to vertically rise and fall between the support legs 2, thereby adjusting the height of the operating platform 11. Limit plates 6 are fixedly connected to the left and right bottom ends of the operating platform 1. The limiting plate 6 is set within the stroke range of the electric telescopic rod 7 to physically limit the maximum stroke of the second support plate 8, preventing it from excessively extending or falling. By setting a return spring 9 and the second support plate 8, the operating table 11 is flexibly connected to the second support plate 8 via the return spring 9, rather than being rigidly fixed. During welding, when the pressure plate 16 is pressed down normally, the spring can absorb the instantaneous impact force, preventing stress concentration between the workpiece and the operating table 11 due to hard contact, protecting precision workpieces such as electronic component pins and thin wires from damage, and reducing equipment operating noise. The top of the second support plate 8 is fixedly connected... Several return springs 9 are connected. By setting the return springs 9 and pressure sensors 10, a buffer and monitoring system is formed by the return springs 9 and pressure sensors 10 at the bottom of the operating table 11. When the pressure plate 16 is excessively pressed down due to abnormal conditions such as misoperation or mechanical failure, the operating table 11 compresses the springs, and the push rod 12 triggers the pressure sensor 10 through the rubber pad 13. The sensor detects the pressure value in real time. When the pressure value exceeds the set threshold, the control system can be linked to stop the welding operation or lift the pressure plate 16 to avoid crushing of the workpiece, deformation of the pressure plate 16 or damage to the welding head, which significantly improves the safety of the equipment and the product yield.

[0022] A pressure sensor 10 is installed in the middle of the return spring 9. The bottom end of the pressure sensor 10 is fixedly connected to the second support plate 8. An operating table 11 is fixedly connected to the top end of the return spring 9. A top rod 12 is installed vertically through the middle of the return spring 9. The top end of the top rod 12 is fixedly connected to the bottom end of the operating table 11, and its bottom end corresponds to the pressure sensor 10 installed on the second support plate 8. A rubber pad 13 is fixedly connected to its bottom end. When the operating table 11 moves downward due to pressure, the top rod 12 moves downward, directly contacting and triggering the pressure sensor 10 through the rubber pad 13, thereby realizing real-time detection of the pressure value. The bottom end of the top rod 12 is fixedly connected to the rubber pad 13. The left and right top ends of the worktable 1 have sliding grooves 14 extending along their length. An L-shaped buckle 15 is slidably connected inside the sliding groove 14. The L-shaped buckle 15 can move along the length of the sliding groove 14. The flange on one side cooperates with the inner wall of the sliding groove, thereby realizing lateral sliding and stable limiting. The lower end of the L-shaped buckle 15 abuts against... The pressure plate 16 is locked or released by sliding buckles to fix workpieces of different sizes. By setting L-shaped buckles 15 and sliding grooves 14, the L-shaped buckles 15 in the sliding grooves 14 at the top of the worktable 1 can slide laterally and fix the workpiece by abutting against the pressure plate 16. The buckles have a large sliding adjustment range to adapt to workpieces of different widths. No tools are required during the clamping process, and manual locking can be done quickly. Compared with the traditional bolt fixing method, it saves more than 50% of clamping time and significantly improves production efficiency. At the same time, the pressure plate 16 limits and stabilizes the position, preventing workpiece displacement during welding and ensuring welding accuracy.

[0023] In use, the operator can adjust the height of the operating table 11 by controlling the electric telescopic rod 7 to drive the second support plate 8 to rise or fall according to the thickness of the workpiece. The limit plate 6 can ensure that the second support plate will not exceed the preset maximum stroke to prevent damage due to overtravel.

[0024] Place the workpiece on the adjusted operating table 11, slide the L-shaped buckle 15 in the slide groove 14 at the top of the operating table 1 to make the pressure plate 16 move laterally and press the edge of the workpiece, thereby firmly fixing the workpiece.

[0025] During the welding process, if the pressure plate 16 is excessively pressed down due to abnormal conditions such as mechanical failure or misoperation, the operating table 11 will move down and compress the reset spring 9. As the spring is compressed, the top rod 12 located in the middle of the spring moves down, and the rubber pad 13 at its bottom will immediately contact and trigger the pressure sensor 10. When the pressure value detected by the sensor exceeds the preset threshold, it will send a signal to the control system. The control system can immediately execute preset emergency response measures, such as stopping the welding line action or raising the pressure plate, to avoid crushing the workpiece, deforming the pressure plate, or damaging the welding head.

[0026] Once the abnormal pressure is eliminated, the reset spring 9 rebounds, causing the operating table 11 and the push rod 12 to return to their initial positions. The pressure sensor 10 then disengages, and the entire device returns to normal operation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure plate protection device for a wire bonding machine, comprising a worktable (1), characterized in that: The bottom end of the workbench (1) is fixedly connected to a support leg (2), the bottom end of the workbench (1) is fixedly connected to a connecting rod (3), the bottom end of the connecting rod (3) is fixedly connected to a first support plate (4), the top end of the first support plate (4) is fixedly connected to an electric telescopic rod (7), the top end of the electric telescopic rod (7) is fixedly connected to a second support plate (8), the top end of the second support plate (8) is fixedly connected to several return springs (9), a pressure sensor (10) is provided in the middle of the return spring (9), and the bottom end of the pressure sensor (10) is fixedly connected to the second support plate (8).

2. The pressure plate protection device for a wire bonding machine according to claim 1, characterized in that: The top of the workbench (1) has a limiting groove (5), and the left and right bottom ends of the workbench (1) are fixedly connected to limiting plates (6).

3. The pressure plate protection device for a wire bonding machine according to claim 2, characterized in that: The top end of the reset spring (9) is fixedly connected to the operating table (11), and the upper middle end of the reset spring (9) is provided with a top rod (12), the top end of the top rod (12) is fixedly connected to the bottom end of the operating table (11).

4. The pressure plate protection device for a wire bonding machine according to claim 3, characterized in that: A rubber pad (13) is fixedly connected to the bottom end of the top rod (12).

5. The pressure plate protection device for a wire bonding machine according to claim 1, characterized in that: The workbench (1) has a sliding groove (14) at the top left and right ends. An L-shaped buckle (15) is slidably connected in the middle of the sliding groove (14). The lower end of the L-shaped buckle (15) abuts against a pressure plate (16).

Images