A convenient maintenance wire bonding mechanism

Abstract

This invention relates to the field of welding technology, specifically to a convenient wire bonding mechanism, comprising a welding mechanism including a transducer. A transducer is mounted on one end of a mounting base, and a connecting block is mounted on one end of the transducer. The connecting block is engaged with the mounting block at one end. The mounting block has a cross-sectional "+" shape. Welding pins are vertically threaded onto the mounting block. A heating element is mounted on the mounting base, and a wire clamp is mounted on the mounting base. One end of the wire clamp extends to the top of the mounting block, and a voice coil motor is mounted on the other end of the mounting base. A locking mechanism is also included on the welding mechanism. This welding mechanism facilitates rapid chip welding and allows for easy disassembly and maintenance. The locking mechanism also facilitates locking the welding mechanism after installation, making assembly and disassembly convenient.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a wire welding mechanism that is easy to maintain. Background Technology

[0002] Wire bonding machines are one of the core processes in the semiconductor packaging back-end, and the bonding head is the most important component of the wire bonding machine. It is the direct part for performing gold wire bonding and is mainly used for bonding the internal leads of high-power devices, IGBTs, light-emitting diodes, laser tubes, small and medium power transistors, integrated circuits, and some special semiconductor devices.

[0003] However, traditional wire bonding machines have a simple structure, and most of the welding needles are installed by bolts. Due to the high-speed vibration during wire bonding, the welding needles are prone to loosening, which affects the quality of the wire bonding. At the same time, the welding needles are relatively small, making it inconvenient to disassemble, replace and maintain them later, and the operation is cumbersome. In addition, if there is dust and debris on the metal wire during welding, it will hinder the subsequent welding work and is inconvenient to clean. Furthermore, the fumes generated during welding are extracted through a single pipe, which is not effective in cleaning and will affect the surrounding environment. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a wire bonding mechanism that is easy to maintain.

[0005] The technical solution adopted by this invention to solve its technical problem is: a wire bonding mechanism that is easy to maintain, comprising:

[0006] Mounting base;

[0007] A welding mechanism is installed on the mounting base. The welding mechanism includes a transducer. A transducer is installed at one end of the mounting base, and a connecting block is installed at one end of the transducer. The mounting block is engaged with the mounting block at one end. The mounting block has a cross-sectional "+" shaped structure. A welding needle is vertically threaded onto the mounting block. A heating element is installed on the mounting base. A wire clamp is installed on the mounting base. One end of the wire clamp extends to the top of the mounting block. A voice coil motor is installed at the other end of the mounting base.

[0008] A locking mechanism is installed on the welding mechanism.

[0009] Specifically, the engaging mechanism includes a rotary knob, which is rotatably connected to the top of one end of the connecting block. A drive disk is rotatably connected inside one end of the connecting block. The bottom of the rotary knob is connected to the drive disk, which has an elliptical structure. Symmetrical slots are provided on both sides of the mounting block. Symmetrical locking pins are installed inside both sides of one end of the connecting block. The locking pins are slidably connected to the inside of the connecting block by multiple compression springs. The locking pins have an "L"-shaped structure. One sidewall of the locking pin extends to the outside of the connecting block. Symmetrical push plates are vertically connected to the other sidewalls of the two locking pins. One end of the push plate has an arc-shaped structure and abuts against the drive disk. One end of the locking pin has a trapezoidal structure.

[0010] Specifically, the welding mechanism is equipped with an abutting mechanism, which includes a clamping block. The clamping block is slidably connected to one end of the mounting block, and one end of the clamping block abuts against the side wall of the welding needle. A pressure block is installed at one end of the clamping block, and the pressure block extends to the outside of the mounting block. A fixing block is fixedly connected to one end of the mounting block, and a compression spring is connected between the inner side of the pressure block and the fixing block. The pressure block is slidably connected to the fixing block and the mounting block through the compression spring.

[0011] Specifically, a buffer spring is connected between the pressure block and the clamping block, and one end of the pressure block is slidably connected to one end of the clamping block through the buffer spring. The clamping block has a trapezoidal structure.

[0012] Specifically, the welding mechanism is equipped with a dust collection mechanism, which includes a connecting pipe. The connecting pipe is installed at the bottom of the connecting block, and an installation plate is installed at the bottom of the connecting pipe. The installation plate has a "C" shaped structure. A through groove is provided inside one side of the installation plate, and multiple equally spaced guide plates are provided on one side of the through groove. The two ends of the guide plates are connected to the inside of the installation plate, and the angle between the guide plates and the outer side of the installation plate is degrees.

[0013] Specifically, the welding mechanism is equipped with a guide mechanism, which includes a support block. The top two ends of the mounting block are detachably connected to symmetrical support blocks by bolts. The mounting block has an "L" shaped structure. The top of the mounting block is provided with a circular connecting plate. The two ends of the connecting plate are connected to the tops of the two mounting blocks. A through connecting sleeve is installed at the center of the top of the connecting plate. The connecting sleeve is located at the center of the top of the welding needle.

[0014] Specifically, a cleaning mechanism is installed on the guiding mechanism. The cleaning mechanism includes a funnel. The bottom of the connecting plate is threadedly connected to the funnel. The side wall of the funnel is provided with multiple annularly distributed heat dissipation grooves. A through-conductor is installed at the bottom of the funnel. A conical sponge block is engaged with the inner side of the top of the conductor.

[0015] The beneficial effects of this invention are:

[0016] (1) The present invention provides a convenient wire bonding mechanism. The installation of the welding mechanism facilitates rapid welding of chips and makes it easy to disassemble and install, which is convenient for subsequent maintenance and replacement. The locking mechanism helps to lock the welding mechanism after installation and facilitates subsequent disassembly and assembly. At the same time, the dust extraction mechanism helps to remove and clean the fumes during welding.

[0017] (2) The wire welding mechanism described in this invention is easy to maintain. Through the coordinated installation of the guiding mechanism and the cleaning mechanism, it is beneficial to guide the metal wire and remove debris from the outside of the metal wire, which facilitates better subsequent welding work. The installation of the welding mechanism is beneficial to drive the abutment mechanism, so that the abutment mechanism abuts tightly against the inside of the welding mechanism, which plays a role in reinforcement and protection. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a wire bonding mechanism that is easy to maintain, provided by the present invention;

[0020] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0021] Figure 3 This is a schematic diagram of the connection structure between the welding pin and the mounting block of the present invention;

[0022] Figure 4 This is a schematic diagram of the connection structure between the funnel and the connecting plate of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure between the conduit and the funnel of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection structure between the locking pin and the connecting block of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection structure between the pressure block and the mounting block of the present invention;

[0026] Figure 8 for Figure 7 The diagram shows an enlarged view of section B.

[0027] In the diagram: 1. Mounting base; 2. Welding mechanism; 201. Voice coil motor; 202. Heating element; 203. Wire clamp; 204. Transducer; 205. Welding needle; 206. Connecting block; 207. Mounting block; 3. Dust extraction mechanism; 301. Mounting plate; 302. Connecting pipe; 303. Through slot; 304. Guide plate; 4. Engaging mechanism; 401. Rotary knob; 402. Slot; 403. Drive plate; 404. 405. Push plate; 406. Compression spring; 407. Locking pin; 508. Guide mechanism; 501. Connecting plate; 502. Connecting sleeve; 503. Support block; 504. Bolt; 6. Cleaning mechanism; 601. Funnel; 602. Heat dissipation groove; 603. Conduit; 604. Sponge block; 7. Abutment mechanism; 701. Pressing block; 702. Fixing block; 703. Compression spring; 704. Buffer spring; 705. Clamping block. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] like Figures 1-8 As shown, the present invention provides a convenient wire bonding mechanism, including a mounting base 1, a welding mechanism 2 mounted on the mounting base 1, a dust extraction mechanism 3 mounted on the welding mechanism 2, a locking mechanism 4 mounted on the welding mechanism 2, a guiding mechanism 5 mounted on the welding mechanism 2, a cleaning mechanism 6 mounted on the guiding mechanism 5, and an abutting mechanism 7 mounted on the welding mechanism 2.

[0030] Specifically, the welding mechanism 2 includes a transducer 204. The transducer 204 is mounted on one end of the mounting base 1, and a connecting block 206 is mounted on one end of the transducer 204. A mounting block 207 is engaged with one end of the connecting block 206. The mounting block 207 has a cross-sectional "+" shape. A welding needle 205 is vertically threaded onto the mounting block 207. A heating element 202 is mounted on the mounting base 1, and a wire clamp 203 is mounted on the mounting base 1. One end of the wire clamp 203 extends to the top of the mounting block 207, and a voice coil motor 201 is mounted on the other end of the mounting base 1. Under the action of the mounting base 1... The installation of the transducer 204 facilitates the connection of the connecting block 206. The engagement of the mounting block 207 with the connecting block 206 facilitates the installation of the welding needle 205 and allows for easy disassembly and replacement of the welding needle 205, making operation more convenient. The installation of the wire clamp 203 facilitates the clamping and driving of the metal wire, allowing the metal wire to pass through the welding needle 205 and be led out, which is beneficial for welding work. The heating element 202 provides heat, and the voice coil motor 201 facilitates the welding drive.

[0031] Specifically, the engaging mechanism 4 includes a knob 401. The knob 401 is rotatably connected to the top of one end of the connecting block 206. A drive disk 403 is rotatably connected to the inside of one end of the connecting block 206. The bottom of the knob 401 is connected to the drive disk 403, which has an elliptical structure. Symmetrical slots 402 are provided on both sides of the mounting block 207. Symmetrical locking pins 406 are installed inside both sides of one end of the connecting block 206. The locking pins 406 are slidably connected to the inside of the connecting block 206 via multiple compression springs 405. The locking pins 406 have an "L"-shaped structure. One sidewall of the locking pin 406 extends to the outside of the connecting block 206. Symmetrical push plates 404 are vertically connected to the other sidewalls of the two locking pins 406. One end of the push plate 404 has an arc-shaped structure and abuts against the drive disk 403. One end has a trapezoidal structure. When the mounting block 207 is inserted into one end of the connecting block 206, the mounting block 207 retracts against the locking pin 406, thus facilitating the complete insertion of the mounting block 207 into the connecting block 206. Under the action of multiple compression springs 405, the locking pin 406 is pushed into the slot 402, thereby locking the mounting block 207 and ensuring a firm and stable installation of the mounting block 207 and the connecting block 206. By rotating the rotary knob 401, the rotary knob 401 drives the drive disc 403 to abut against the two push plates 404. The push plates 404 drive the locking pin 406 to retract under the action of the compression springs 405, separating the locking pin 406 from the slot 402, facilitating the removal of the mounting block 207 and the replacement and maintenance of the welding needle 205.

[0032] Specifically, the abutting mechanism 7 includes a clamping block 705. The clamping block 705 is slidably connected to one end of the mounting block 207. One end of the clamping block 705 abuts against the side wall of the welding needle 205. A pressure block 701 is installed at one end of the clamping block 705, extending to the outside of the mounting block 207. A fixing block 702 is fixedly connected to one end of the mounting block 207. A compression spring 703 connects the inner side of the pressure block 701 and the fixing block 702. The pressure block 701 is slidably connected to the fixing block 702 and the mounting block 207 via the compression spring 703. After the mounting block 207 is stably engaged with the connecting block 206, the pressure block 701 at one end of the mounting block 207 is abutted. Under the action of the compression spring 703, the pressure block 701 drives the clamping block 705 to slide, which facilitates the clamping block 705 to abut against the side wall of the welding needle 205, so that the welding needle 205 will not loosen during high-speed movement, thus playing a role in abutting and fastening. After the mounting block 207 is disassembled, the pressure block 701 is reset under the action of the compression spring 703, and the clamping block 705 separates from the welding needle 205, making it convenient to rotate and disassemble the welding needle 205.

[0033] Specifically, a buffer spring 704 is connected between the pressure block 701 and the clamping block 705. One end of the pressure block 701 is slidably connected to one end of the clamping block 705 through the buffer spring 704. The clamping block 705 has a trapezoidal structure. The installation of the buffer spring 704 helps the pressure block 701 to continue sliding after the clamping block 705 clamps tightly, so that the mounting block 207 and the connecting block 206 can be engaged in place. The trapezoidal structure design of the clamping block 705 increases the clamping area, making the clamping tight and firm.

[0034] Specifically, the dust collection mechanism 3 includes a connecting pipe 302, which is installed at the bottom of the connecting block 206. An mounting plate 301 is installed at the bottom of the connecting pipe 302. The mounting plate 301 has a "C"-shaped structure. A through groove 303 is provided inside one side of the mounting plate 301, and multiple equally spaced guide plates 304 are provided on one side of the through groove 303. Both ends of the guide plates 304 are connected to the interior of the mounting plate 301. The angle between the guide plates 304 and the outer side of the mounting plate 301 is 45 degrees. The connection between the connecting pipe 302 and the external dust collection pipe facilitates air extraction from the through groove 303, allowing the fumes generated by the welding needle 205 during wire welding to be removed and cleaned. Simultaneously, the multiple guide plates 304 facilitate efficient airflow, resulting in better dust collection. Furthermore, the "C"-shaped design of the mounting plate 301 increases the dust collection range, allowing for better fumes removal.

[0035] Specifically, the guiding mechanism 5 includes a support block 503. The top two ends of the mounting block 207 are detachably connected to symmetrical support blocks 503 via bolts 504. The mounting block 207 has an "L" shaped structure. The top of the mounting block 207 is provided with a circular connecting plate 501. The two ends of the connecting plate 501 are connected to the tops of the two mounting blocks 207. A through connecting sleeve 502 is installed at the center of the top of the connecting plate 501. The connecting sleeve 502 is located at the center of the top of the welding needle 205. Under the action of the support block 503, it is beneficial to support the installation of the connecting plate 501. Under the action of the connecting plate 501, it is beneficial to install the connecting sleeve 502, thereby guiding the metal wire into the interior of the welding needle 205, making the metal wire slide smoothly and less prone to knotting.

[0036] Specifically, the cleaning mechanism 6 includes a funnel 601, with the bottom of the connecting plate 501 threadedly connected to the funnel 601. The side wall of the funnel 601 is provided with multiple annularly distributed heat dissipation grooves 602. A through conical conduit 603 is installed at the bottom of the funnel 601, and a conical sponge block 604 is engaged with the inner side of the top of the conduit 603. The installation of the funnel 601 and the connecting plate 501 facilitates the installation of the conduit 603, allowing the metal wire to enter and exit the conduit 603. The sponge block 604 installed inside the conduit 603 helps to wrap the metal wire, allowing the metal wire to slide and rub against the inside of the sponge pad, which helps to remove dust and debris from the metal wire, resulting in better welding. Furthermore, the multiple heat dissipation grooves 602 facilitate ventilation, allowing the metal wire to dissipate heat effectively and preventing the sponge pad from burning.

[0037] In use, this invention first facilitates the installation of the transducer 204 via the mounting base 1, thereby connecting the connecting block 206. The engagement of the mounting block 207 with the connecting block 206 facilitates the installation of the welding needle 205 and allows for easy subsequent disassembly and replacement / maintenance of the welding needle 205, making operation more convenient. The installation of the wire clamp 203 facilitates the clamping and driving of the metal wire, allowing it to pass through the welding needle 205 and be guided out, which is beneficial for welding. The heating element 202 provides heating, and the voice coil motor 201 facilitates the welding drive. When the mounting block 207 is engaged with one end of the connecting block 206, the mounting block 207 retracts against the locking pin 406, thereby... The mounting block 207 is fully inserted into the connecting block 206. The locking pin 406, under the action of multiple compression springs 405, is pushed into the slot 402, thus locking the mounting block 207 in place and ensuring a secure and stable installation between the mounting block 207 and the connecting block 206. Rotating the knob 401 causes the drive disc 403 to abut against the two push plates 404. The push plates 404 then drive the locking pin 406 to retract, freeing it from the compression springs 405, thus separating the locking pin 406 from the slot 402. This facilitates the removal of the mounting block 207 and the replacement and maintenance of the welding needle 205. The connection to the external dust extraction pipe via the connecting pipe 302 allows for air extraction from the through-slot 303, enabling the removal of fumes generated during wire welding by the welding needle 205. The suction process involves extraction and cleaning, and the multiple guide plates 304 facilitate efficient airflow, resulting in better dust collection. The "C"-shaped design of the mounting plate 301 increases the suction range, allowing for better smoke extraction. The support block 503 supports the installation of the connecting plate 501, which in turn facilitates the installation of the connecting sleeve 502. This guides the metal wire through the welding needle 205, ensuring smooth sliding and preventing tangling. The installation of the funnel 601 and the connecting plate 501 facilitates the installation of the guide tube 603, allowing the metal wire to enter and exit. A sponge block 604 inside the guide tube 603 helps to wrap the metal wire. The friction between the sliding metal wire and the inside of the sponge pad helps remove dust and debris from the metal wire, resulting in better welding. Furthermore, the multiple heat dissipation slots 602 facilitate ventilation, allowing the metal wire to dissipate heat effectively and preventing the sponge pad from burning. After the mounting block 207 and connecting block 206 are securely engaged, the pressure block 701 at one end of the mounting block 207 is pressed against it. The pressure block 701, freed from the pressure spring 703, drives the clamping block 705 to slide. This allows the clamping block 705 to press against the side wall of the welding needle 205, preventing the welding needle 205 from loosening during high-speed movement and providing a secure clamping effect. After the mounting block 207 is removed, the pressure block 701 resets under the pressure spring 703, and the clamping block 705 separates from the welding needle 205.To facilitate the rotation and disassembly of the welding needle 205, the installation of the buffer spring 704 allows the clamping block 701 to continue sliding even after the clamping block 705 has clamped tightly, ensuring that the mounting block 207 and the connecting block 206 are properly engaged. The trapezoidal design of the clamping block 705 increases the clamping area, resulting in a tight and secure clamping.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wire bonding mechanism that is easy to maintain, characterized in that, include: Mounting base (1); A welding mechanism (2) is installed on the mounting base (1). The welding mechanism (2) includes a transducer (204). The transducer (204) is installed at one end of the mounting base (1). A connecting block (206) is installed at one end of the transducer (204). A mounting block (207) is engaged with one end of the connecting block (206). The mounting block (207) has a cross-section in the shape of a cross. A welding needle (205) is vertically threaded onto the mounting block (207). A heating element (202) is installed on the mounting base (1). A wire clamp (203) is installed on the mounting base (1). One end of the wire clamp (203) extends to the top of the mounting block (207). A voice coil motor (201) is installed at the other end of the mounting base (1). The engaging mechanism (4) is installed on the welding mechanism (2); The engaging mechanism (4) includes a rotating knob (401). The rotating knob (401) is rotatably connected to the top of one end of the connecting block (206). A driving disk (403) is rotatably connected to the inside of one end of the connecting block (206). The bottom of the rotating knob (401) is connected to the driving disk (403). The driving disk (403) has an elliptical structure. Symmetrical slots (402) are provided on both sides of the mounting block (207). Symmetrical locking pins (406) are installed inside both sides of one end of the connecting block (206). The locking pin (406) is slidably connected to the inside of the connecting block (206) by multiple compression springs (405). The locking pin (406) is generally L-shaped. One side wall of the locking pin (406) extends to the outside of the connecting block (206). The other side walls of the two locking pins (406) are vertically connected to symmetrical push plates (404). One end of the push plate (404) is arc-shaped and abuts against the drive disk (403). One end of the locking pin (406) is trapezoidal.

2. The wire bonding mechanism for easy maintenance according to claim 1, characterized in that: The welding mechanism (2) is equipped with an abutting mechanism (7), which includes a clamping block (705). The clamping block (705) is slidably connected to one end of the mounting block (207). One end of the clamping block (705) abuts against the side wall of the welding needle (205). A pressure block (701) is installed at one end of the clamping block (705). The pressure block (701) extends to the outside of the mounting block (207). A fixing block (702) is fixedly connected to one end of the mounting block (207). A compression spring (703) is connected between the inner side of the pressure block (701) and the fixing block (702). The pressure block (701) is slidably connected to the fixing block (702) and the mounting block (207) through the compression spring (703).

3. The wire bonding mechanism for easy maintenance according to claim 2, characterized in that: A buffer spring (704) is connected between the pressure block (701) and the clamping block (705). One end of the pressure block (701) is slidably connected to one end of the clamping block (705) through the buffer spring (704). The clamping block (705) has a trapezoidal structure.

4. The wire bonding mechanism for easy maintenance according to claim 1, characterized in that: The welding mechanism (2) is equipped with a dust collection mechanism (3), which includes a connecting pipe (302). The connecting block (206) has a connecting pipe (302) installed at the bottom, and a mounting plate (301) is installed at the bottom of the connecting pipe (302). The mounting plate (301) has a "C" shaped structure, and a through groove (303) is provided inside one side of the mounting plate (301).

5. The wire bonding mechanism for easy maintenance according to claim 4, characterized in that: The through groove (303) has multiple equally spaced guide plates (304) on one side. The two ends of the guide plates (304) are connected to the inside of the mounting plate (301). The angle between the guide plates (304) and the outside of the mounting plate (301) is 45 degrees.

6. The wire bonding mechanism for easy maintenance according to claim 1, characterized in that: The welding mechanism (2) is equipped with a guide mechanism (5), which includes a support block (503). The top two ends of the mounting block (207) are detachably connected to symmetrical support blocks (503) by bolts (504). The mounting block (207) has an "L" shaped structure. The top of the mounting block (207) is provided with a circular connecting plate (501). The two ends of the connecting plate (501) are connected to the top of the two support blocks (503). A through connecting sleeve (502) is installed at the center of the top of the connecting plate (501). The connecting sleeve (502) is located at the center of the top of the welding needle (205).

7. The wire bonding mechanism for easy maintenance according to claim 6, characterized in that: A cleaning mechanism (6) is installed on the guide mechanism (5). The cleaning mechanism (6) includes a funnel (601). The bottom of the connecting plate (501) is threadedly connected to the funnel (601). The side wall of the funnel (601) is provided with multiple annularly distributed heat dissipation grooves (602). A through conduit (603) is installed at the bottom of the funnel (601). A conical sponge block (604) is engaged with the inner side of the top of the conduit (603).

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