Hot pressboard structure of wire welding machine

By using a combined structure of curved tubes and thermal conductive fins in the semiconductor wire bonding hot pressing plate, the problems of uneven heat transfer and slow heating speed are solved, and positioning is achieved through the bidirectional screw and moving plate structure driven by the servo motor. The flexible displacement of the splint simplifies maintenance operations and improves the practicality and reliability of the device.

CN222386184UActive Publication Date: 2025-01-24UNI AUTOMATION TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202421192266.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-24
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The existing semiconductor wire hot-press plate designs have problems such as uneven heat transfer, slow heating speed and inconvenient maintenance.

Method used

It adopts a structure including the hot plate body, installation frame, adjustment seat, positioning splint and curved tube. The combination of curved tube and heat-conducting fins improves the heat conduction efficiency, and uses the bidirectional screw and moving plate structure driven by the servo motor. , to achieve flexible displacement of the positioning splint and avoid the clamping mechanism from blocking the hot press plate.

Benefits of technology

It improves the directness and efficiency of heat conduction, simplifies maintenance operations, and improves the practicality and reliability of the device.

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Abstract

The utility model discloses a hot pressboard structure of a wire bonder, which is characterized in that a hot pressboard body is arranged inside a mounting frame, the rear side of the mounting frame is connected with an adjusting seat, positioning clamping plates are symmetrically arranged above the front side of the adjusting seat, a liquid inlet pipe is arranged on the left side of the front part of the mounting frame, and a liquid outlet pipe is arranged on the right side of the front part of the mounting frame; the heat conduction fins can absorb heat generated by the curved pipes and heat of the heat conduction oil at the same time, then the heat is directly conducted to the hot pressing plate body, compared with the mode that a heating medium is conveyed only through a pipeline for heat conduction, heat conduction is more direct, and the positioning clamping plate moves in the first mounting groove; the clamping and positioning mechanism is prevented from protruding out of the outer side of the hot pressboard body to affect clamping and positioning, the design structure is more reasonable, the side baffles can be turned over conveniently, the side baffle clamping mechanism is prevented from shielding the hot pressboard body to affect cleaning and maintenance operation, and practicability is further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing plates, in particular to a hot pressing plate structure of a wire bonding machine. Background Art

[0002] Semiconductors refer to materials whose electrical conductivity at room temperature is between that of conductors and insulators. Semiconductors are used in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting, high-power power conversion and other fields. Semiconductor welding wires are made by fixing metal wires (such as silicon, aluminum, and gold) to a base and a chip using a hot pressing plate. They are commonly used in the semiconductor production and processing industry. Hot pressing plates are usually used in the production process of semiconductor welding wires. On the one hand, the hot pressing plate can ensure the flatness of the product's external dimensions or the accuracy of a special shape. On the other hand, during the hot pressing process, the hot pressing plate has heat transfer properties that can transfer heat to the semiconductor, allowing the semiconductor to obtain the temperature and energy to cure the adhesive.

[0003] In the prior art, application number 202222436668.3 discloses a hot press plate that can quickly heat semiconductor welding wires, including a hot press plate body, two symmetrically arranged heating tubes are laid inside the hot press plate body, the inlet ends of the two heating tubes are commonly connected to a liquid inlet pipe, a liquid inlet is fixedly installed in the middle of the liquid inlet pipe, the outlet ends of the two heating tubes are commonly connected to a liquid outlet pipe, one end of the liquid outlet pipe is fixedly installed with a liquid outlet, and two groups of brackets are respectively fixedly installed on both sides of the top of the hot press plate body, one group of the brackets is rotatably mounted with a bidirectional screw, and the surface of the bidirectional screw is threadedly connected to two symmetrical fixed plates. The bidirectional screw and guide rod structure of the above device are protrudingly arranged on the hot press plate body, the design structure is not reasonable enough, the clamping mechanism blocks the hot press plate, and it is inconvenient to maintain. Although the two heating tubes are interconnected to increase the circulation rate of the heat medium, it will cause the heating speed of the hot press plate body to decrease, and the heating tube of the tubular structure is not heated evenly.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a hot pressing plate structure of a wire bonding machine to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A hot press plate structure for a wire welding machine comprises a hot press plate body and a mounting frame, wherein the hot press plate body is arranged inside the mounting frame, an adjustment seat is fixedly connected to the rear side of the mounting frame, positioning clamps are symmetrically arranged on the upper front side of the adjustment seat, a liquid inlet pipe is arranged on the left front part of the mounting frame, and a liquid outlet pipe is arranged on the right front part.

[0008] As a further optimization, a first mounting groove is dug on the top side of the mounting frame, a second mounting groove is dug on the bottom side of the inner wall of the first mounting groove, the first mounting groove passes through the rear side of the mounting frame, and the top opening of the second mounting groove is fixedly connected to the hot pressing plate body.

[0009] As a further optimization, a curved tube is fixedly connected to the bottom side of the inner wall of the second mounting groove, and the two ends of the curved tube are respectively fixedly connected to the rear ends of the liquid inlet pipe and the liquid outlet pipe, and infusion tubes are respectively provided on the left and right sides of the mounting frame.

[0010] As a further optimization, the rear end of the infusion tube is connected to the inner cavity of the second installation groove, and heat-conducting fins are equidistantly mounted and fixed on the outer wall of the curved tube. The top side of the heat-conducting fins is fixedly connected to the bottom side of the hot pressing plate body.

[0011] As a further optimization, an installation opening is provided on the upper front side of the adjustment seat, an installation cavity is provided in the right wall cavity of the adjustment seat, a servo motor is fixedly connected to the right side of the rear of the adjustment seat, a bidirectional screw is connected to the left side of the inner wall of the installation opening through a bearing, and a first guide rod is provided at the front and rear of the bidirectional screw respectively.

[0012] As a further optimization, the two ends of the first guide rod are fixedly connected to the inner wall of the installation opening, and a movable plate is symmetrically sleeved on the outer side of the bidirectional screw and the first guide rod. A nut is penetrated through the inside of the movable plate through a bearing, and the nut is threadedly sleeved with the bidirectional screw through a matching thread.

[0013] As a further optimization, the right end of the bidirectional screw extends into the installation cavity and is fixedly connected to a worm gear. The output shaft of the servo motor extends into the installation cavity and is fixedly connected to a worm. The worm is located below the worm gear and is matingly meshed with the worm gear.

[0014] As a further optimization, the positioning clamp plate includes a side baffle plate and a second guide rod. The side baffle plate is symmetrically arranged on the outside of the second guide rod. The two ends of the second guide rod are fixedly connected to the inner wall of the first mounting groove. A connecting block is symmetrically sleeved on the outside of the second guide rod. The connecting block is fixedly connected to the front side of the movable plate. A U-shaped groove is dug at the rear end of the side baffle plate. Sleeves are symmetrically arranged on both sides of the connecting block through bearings. The outer wall of the sleeve is connected to the U-shaped groove through a damping bearing.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the heat-conducting fins can absorb the heat generated by the curved tube and the heat of the heat-conducting oil at the same time, and then directly transfer the heat to the hot pressing plate body. Compared with heat transfer by simply transporting heat medium through pipelines, the heat transfer is more direct. The positioning clamp is displaced inside the first mounting groove to avoid the clamping and positioning mechanism protruding from the outside of the hot pressing plate body and affecting the clamping and positioning. The design structure is more reasonable, and the side baffle can be easily opened to avoid the side baffle clamping mechanism blocking the hot pressing plate body and affecting cleaning and maintenance operations, thereby further improving the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the installation frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the split structure of the adjustment seat of the utility model;

[0020] Figure 4 It is a schematic diagram of the disassembly structure of the positioning splint of the utility model.

[0021] In the figure: 1. hot pressing plate body; 2. mounting frame; 3. adjusting seat; 4. positioning clamp; 5. liquid inlet pipe; 6. liquid outlet pipe; 7. first mounting groove; 8. second mounting groove; 9. curved pipe; 10. liquid infusion pipe; 11. heat conducting fin; 12. mounting port; 13. mounting cavity; 14. servo motor; 15. bidirectional screw; 16. first guide rod; 17. moving plate; 18. worm gear; 19. worm; 20. side baffle; 21. second guide rod; 22. connecting block; 23. sleeve. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] Embodiment 1:

[0024] like Figure 1-4 As shown: a hot press plate structure of a wire welding machine, including a hot press plate body 1 and a mounting frame 2, the hot press plate body 1 is arranged inside the mounting frame 2, an adjustment seat 3 is fixedly connected to the rear side of the mounting frame 2, a positioning clamp 4 is symmetrically arranged on the upper front side of the adjustment seat 3, a liquid inlet pipe 5 is arranged on the left front part of the mounting frame 2, and a liquid outlet pipe 6 is arranged on the right front part, a first mounting groove 7 is dug on the top side of the mounting frame 2, a second mounting groove 8 is dug on the bottom side of the inner wall of the first mounting groove 7, the first mounting groove 7 passes through the rear side of the mounting frame 2, the top of the second mounting groove 8 is fixedly connected to the hot press plate body 1, the bottom side of the inner wall of the second mounting groove 8 is fixedly connected to a curved tube 9, the two ends of the curved tube 9 are respectively connected to the rear ends of the liquid inlet pipe 5 and the liquid outlet pipe 6, and the left and right sides of the mounting frame 2 are respectively provided with an infusion pipe 1 0, the rear end of the infusion tube 10 is connected with the inner cavity of the second mounting groove 8 respectively, and the outer wall of the curved tube 9 is equidistantly provided with heat-conducting fins 11, and the top side of the heat-conducting fins 11 is fixedly connected with the bottom side of the hot pressing plate body 1, and the heat medium enters the curved tube 9 through the liquid outlet pipe 6, and the heat medium flows in the curved tube 9, and the heat-conducting oil enters the inner cavity of the second mounting groove 8 through the infusion tube 10 on the left side. The heat-conducting oil cooperates with the curved tube 9 through which the heat medium flows, which can greatly improve the heating efficiency in the inner cavity of the second mounting groove 8, and the outer wall of the curved tube 9 is equidistantly provided with heat-conducting fins 11, which can absorb the heat generated by the curved tube 9 and the heat of the heat-conducting oil at the same time, and then directly transfer the heat to the hot pressing plate body 1. Compared with the heat transfer by pipeline alone, the heat transfer is more direct.

[0025] Embodiment 2:

[0026] like Figure 1-4As shown, a hot pressing plate structure of a wire welding machine is provided, wherein an installation opening 12 is provided through the upper front side of the adjusting seat 3, an installation cavity 13 is provided in the right wall cavity of the adjusting seat 3, a servo motor 14 is fixedly connected to the right rear side of the adjusting seat 3, a bidirectional screw 15 is connected to the left side of the inner wall of the installation opening 12 through a bearing, a first guide rod 16 is provided at the front and rear of the bidirectional screw 15, and both ends of the first guide rod 16 are fixedly connected to the inner wall of the installation opening 12, a moving plate 17 is symmetrically sleeved on the outer side of the bidirectional screw 15 and the first guide rod 16, a nut is provided through the bearing inside the moving plate 17, and the nut is threadedly sleeved with the bidirectional screw 15 through the nut, the right end of the bidirectional screw 15 extends into the interior of the installation cavity 13, and is fixedly connected to a worm gear 18, and the servo The output shaft of the motor 14 extends into the installation cavity 13 and is fixedly connected with a worm 19. The worm 19 is located below the worm wheel 18 and is matched and meshed with the worm wheel 18. The servo motor 14 is started, and the output shaft of the servo motor 14 drives the worm 19 to rotate. The worm 19 meshes and drives the worm wheel 18 to rotate, so that the worm wheel 18 drives the bidirectional screw 15 to rotate, so that the bidirectional screw 15 and the movable plate 17 outside the first guide rod 16 drive the positioning clamp 4 to move inward or outward at the same time. The top side of the positioning clamp 4 is flush with the top side of the installation frame 2, and the positioning clamp 4 is displaced inside the first installation groove 7 to avoid the clamping and positioning mechanism protruding from the outside of the hot pressing plate body 1 to affect the clamping and positioning, and the design structure is more reasonable.

[0027] Embodiment 3:

[0028] like Figure 1-4 As shown, a hot press plate structure of a wire welding machine, wherein the positioning clamping plate 4 includes a side baffle plate 20 and a second guide rod 21, the side baffle plate 20 is symmetrically arranged on the outside of the second guide rod 21, and the two ends of the second guide rod 21 are fixedly connected to the inner wall of the first mounting groove 7, and the outside of the second guide rod 21 is symmetrically sleeved with a connecting block 22, and the connecting block 22 is fixedly connected to the front side of the movable plate 17, and a U-shaped groove is dug at the rear end of the side baffle plate 20, and sleeves 23 are symmetrically arranged on both sides of the connecting block 22 through bearings, and the outer wall of the sleeve 23 is connected to the U-shaped groove through a damping bearing, and the side baffle plate 20 is sleeved on the outside of the sleeve 23 on both sides of the connecting block 22 through the U-shaped groove, and the connecting block 22 is connected and fixed to the movable plate 17, and sleeved on the outside of the second guide rod 21, while the side baffle plate 20 clamps and positions the material workpiece, it is convenient to flip over the side baffle plate 20 to avoid the side baffle plate 20 clamping mechanism blocking the hot press plate body 1 and affecting the cleaning and maintenance operations, thereby further improving the practicality.

[0029] In summary, with the help of the above technical solution of the utility model, when the device is in use, the heat medium enters the curved tube 9 through the liquid outlet pipe 6, the heat medium flows through the curved tube 9, and the heat transfer oil enters the inner cavity of the second installation groove 8 through the liquid infusion pipe 10 on the left. The heat transfer oil cooperates with the curved tube 9 through which the heat medium flows, which can greatly improve the heating efficiency in the inner cavity of the second installation groove 8, and the outer wall of the curved tube 9 is equidistantly provided with heat transfer fins 11, which can absorb the heat generated by the curved tube 9 and the heat transfer oil at the same time, and then directly transfer the heat to the hot pressing plate body 1, start the servo motor 14, and the output shaft of the servo motor 14 drives the worm 19 to The worm 19 meshes with the worm wheel 18 to rotate, so that the worm wheel 18 drives the bidirectional screw 15 to rotate, so that the bidirectional screw 15 and the movable plate 17 on the outside of the first guide rod 16 drive the positioning clamping plate 4 to move inward or outward at the same time, and the top side of the positioning clamping plate 4 is flush with the top side of the mounting frame 2, and the positioning clamping plate 4 is displaced inside the first mounting groove 7. The side baffle 20 is sleeved on the outside of the sleeve 23 on both sides of the connecting block 22 through the U-shaped groove. The connecting block 22 is connected and fixed to the movable plate 17, and is sleeved on the outside of the second guide rod 21. When the side baffle 20 clamps and positions the material workpiece, it is convenient to open the side baffle 20.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot press plate structure for a wire bonding machine, comprising a hot press plate body (1) and a mounting frame (2), characterized in that: The hot pressing plate body (1) is arranged inside the mounting frame (2), the mounting frame (2) is fixedly connected to an adjustment seat (3) on the rear side, a positioning clamp (4) is symmetrically arranged on the upper front side of the adjustment seat (3), a liquid inlet pipe (5) is arranged on the left front part of the mounting frame (2), and a liquid outlet pipe (6) is arranged on the right front part.

2. A hot pressing plate structure for a wire bonding machine according to claim 1, characterized in that: A first mounting groove (7) is excavated on the top side of the mounting frame (2), a second mounting groove (8) is excavated on the bottom side of the inner wall of the first mounting groove (7), the first mounting groove (7) passes through the rear side of the mounting frame (2), and the top opening of the second mounting groove (8) is fixedly connected to the hot pressing plate body (1).

3. A hot pressing plate structure of a wire bonding machine according to claim 2, characterized in that: A curved tube (9) is fixedly connected to the bottom side of the inner wall of the second mounting groove (8), and the two ends of the curved tube (9) are respectively connected to the rear ends of the liquid inlet tube (5) and the liquid outlet tube (6), and a liquid infusion tube (10) is respectively provided on the left and right sides of the mounting frame (2).

4. A hot pressing plate structure for a wire bonding machine according to claim 3, characterized in that: The rear ends of the infusion tubes (10) are respectively connected to the inner cavities of the second mounting grooves (8); heat-conducting fins (11) are equidistantly sleeved and fixed on the outer wall of the curved tube (9); and the top sides of the heat-conducting fins (11) are fixedly connected to the bottom sides of the hot pressing plate body (1).

5. A hot pressing plate structure for a wire bonding machine according to claim 4, characterized in that: A mounting opening (12) is provided through the upper front side of the adjusting seat (3); a mounting cavity (13) is provided in the right wall cavity of the adjusting seat (3); a servo motor (14) is fixedly connected to the right rear side of the adjusting seat (3); a bidirectional screw (15) is connected to the left side of the inner wall of the mounting opening (12) via a bearing; and first guide rods (16) are provided at the front and rear of the bidirectional screw (15), respectively.

6. A hot pressing plate structure for a wire bonding machine according to claim 5, characterized in that: The two ends of the first guide rod (16) are fixedly connected to the inner wall of the installation opening (12); a movable plate (17) is symmetrically sleeved on the outer sides of the bidirectional screw rod (15) and the first guide rod (16); a nut is penetrated through the inside of the movable plate (17) via a bearing, and the nut is threadedly sleeved with the bidirectional screw rod (15) through a matching thread.

7. A hot pressing plate structure for a wire bonding machine according to claim 6, characterized in that: The right end of the bidirectional screw (15) extends into the installation cavity (13) and is fixedly connected to a worm gear (18). The output shaft of the servo motor (14) extends into the installation cavity (13) and is fixedly connected to a worm gear (19). The worm gear (19) is located below the worm gear (18) and is matched and meshed with the worm gear (18).

8. A hot pressing plate structure for a wire bonding machine according to claim 6 or 7, characterized in that: The positioning clamping plate (4) comprises a side baffle (20) and a second guide rod (21). The side baffle (20) is symmetrically arranged on the outside of the second guide rod (21). The two ends of the second guide rod (21) are fixedly connected to the inner wall of the first mounting groove (7). A connecting block (22) is symmetrically sleeved on the outside of the second guide rod (21). The connecting block (22) is fixedly connected to the front side of the movable plate (17). A U-shaped groove is dug at the rear end of the side baffle (20). Sleeves (23) are symmetrically arranged on both sides of the connecting block (22) through bearings. The outer wall of the sleeve (23) is through-connected to the U-shaped groove through a damping bearing.

Citation Information

Patent Citations

  • Semiconductor bonding wire hot pressboard capable of rapidly heating

    CN218311437U