Material pushing clamp of die bonder

Abstract

The utility model relates to the field of die bonders, in particular to a material pushing clamp of a die bonder. The utility model provides a material pushing clamp of a die bonder, which can intermittently convey materials and is convenient to adapt to production speeds of different production lines. A material pushing clamp of a die bonder comprises a bottom plate, servo motors, transmission assemblies, tensioning wheels and the like, the servo motors are connected to the front portion and the rear portion of the bottom plate, the transmission assemblies are connected between output shafts of the servo motors and the bottom plate, the tensioning wheels are rotationally connected to the front side and the rear side of the upper portion of the bottom plate, and the tensioning wheels are in extrusion fit with the adjacent transmission assemblies. When the transmission wheel rotates, the rotating arm and the rotating seat are driven to rotate, so that the pressing arm is in contact with a material, the spring contracts to extrude the material, and then the material is conveyed through the rotation of the top wheel, so that the effects of intermittently conveying the material and conveniently adapting to the production speeds of different production lines are achieved.

Description

Technical Field

[0001] The utility model relates to the field of crystal bonding machines, in particular to a material pushing fixture of a crystal bonding machine. Background Art

[0002] The crystal bonder is used to achieve electrical connection between semiconductor devices and substrates. The semiconductor devices can be bonded to the substrate with conductive silver paste or non-conductive glue, and then a baking process is performed to solidify the semiconductor devices bonded with conductive silver paste or non-conductive glue. Finally, under the action of hot pressing and ultrasound, the substrate and the semiconductor device are connected by gold wire (copper wire or silver alloy wire) through a wire bonding machine to achieve electrical connection between the semiconductor device and the substrate. During the operation of the crystal bonder, the extraction mechanism absorbs the materials to the transfer platform, and the transfer platform transfers the materials to the feeding platform for feeding. Since the materials are continuously and uniformly transported on the feeding platform, it is inconvenient to adapt to the production speed of different production lines.

[0003] Therefore, a material pushing fixture for a die bonding machine has been developed that can intermittently transfer materials to facilitate adaptation to the production speeds of different production lines. Utility Model Content

[0004] In order to overcome the disadvantages of the existing crystal bonding machine that the materials are continuously and uniformly conveyed on the feeding platform and cannot be adapted to the production speeds of different production lines, which is quite inconvenient, the utility model provides a crystal bonding machine pushing clamp that can intermittently convey the materials and is convenient for adapting to the production speeds of different production lines.

[0005] The technical implementation scheme of the utility model is: a pushing fixture of a crystal bonding machine, including a base plate, a servo motor, a transmission assembly, a tensioning wheel, a rotary arm, a rotary seat, a pressure arm, a top wheel and a covering mechanism. The front and rear parts of the base plate are both connected with the servo motor, and the output shaft of the servo motor is connected with the transmission assembly between the base plate. The front and rear sides of the upper part of the base plate are rotatably connected with a plurality of tensioning wheels, and the tensioning wheels are squeezed and matched with adjacent transmission assemblies. The front and rear parts of the base plate are rotatably connected with a plurality of rotary arms on one side close to each other, and the rotary arms are connected with adjacent transmission assemblies. Rotatable seats are rotatably connected between adjacent rotary arms on the left and right parts, and pressure arms are slidably connected to the lower sides of the rotary seats. A plurality of elastic members are connected between the pressure arms and adjacent rotary seats, and a plurality of top wheels are rotatably connected to the lower part of the base plate, and the top wheels are in contact with adjacent pressure arms. A covering mechanism capable of dustproof covering of materials is provided on the base plate.

[0006] Furthermore, the covering mechanism includes a dust cover and an electric fan. The dust cover is clamped between the upper sides of the front and rear parts of the base plate. The lower sides of the left and right parts of the dust cover are rotatably connected to multiple electric fans. The dust cover is clamped into place with the base plate to protect the materials from dust, and then the electric fan is started to remove impurities on the materials.

[0007] Furthermore, it also includes a static removal mechanism, which includes a capacitor conductor, an insulating seat and an electrostatic brush. The capacitor conductor is connected between the left and right sides of the base plate that are close to each other, and the left and right sides of the base plate are clamped with insulating seats. The insulating seats are connected to adjacent capacitor conductors through wires, and electrostatic brushes are connected to the lower sides of the insulating seats to clamp the insulating seats and the base plate. When the material moves to the insulating seat, the electrostatic brush conducts the static electricity on the material to the capacitor conductor.

[0008] Furthermore, the transmission assembly includes a transmission wheel and a belt, and multiple transmission wheels are rotatably connected to the front and rear sides of the base plate. The output shafts of the servo motors are connected to adjacent transmission wheels, and belts are wound between the front and rear transmission wheels.

[0009] Furthermore, a gasket is provided on the lower side of the pressure arm.

[0010] Furthermore, the elastic member is a spring.

[0011] The utility model has the following advantages: 1. The utility model drives the rotary arm and the rotary seat to rotate while the transmission wheel rotates, so that the pressing arm contacts the material, the spring contracts, and the material is squeezed, and then the top wheel rotates to convey the material, thereby achieving the effect of intermittently conveying the material and facilitating adaptation to the production speeds of different production lines.

[0012] 2. The utility model connects the insulating seat with the bottom plate. When the material moves to the insulating seat, the static electricity brush conducts the static electricity on the material to the capacitor conductor, thereby removing the static electricity on the material and avoiding affecting the subsequent processing of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the utility model.

[0015] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the cover protection mechanism of the utility model.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the static elimination mechanism of the utility model.

[0018] In the above figures: 1: bottom plate, 2: servo motor, 3: transmission assembly, 4: tension wheel, 5: rotary arm, 6: rotary seat, 7: pressure arm, 8: top wheel, 9: cover protection mechanism, 91: dust cover, 92: electric fan, 10: static removal mechanism, 101: capacitor conductor, 102: insulating seat, 103: static brush. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] A material pushing fixture for a die bonding machine, such as Figure 1-Figure 3 As shown, it includes a base plate 1, a servo motor 2, a transmission assembly 3, a tensioning wheel 4, a rotary arm 5, a rotary seat 6, a pressure arm 7, a top wheel 8 and a cover protection mechanism 9. The front and rear parts of the base plate 1 are connected to the servo motor 2. The output shaft of the servo motor 2 is connected to the base plate 1 with a transmission assembly 3. The transmission assembly 3 includes a transmission wheel and a belt. The front and rear sides of the base plate 1 are rotatably connected to four transmission wheels. The output shaft of the servo motor 2 is connected to the adjacent transmission wheels. Belts are wound between the front and rear transmission wheels. The front and rear sides of the upper part of the base plate 1 are rotatably connected to three tensioning wheels 4. The tensioning wheels 4 are squeezed and matched with the adjacent transmission components 3. Four swing arms 5 are rotatably connected on the sides of the front and rear parts of the base plate 1 that are close to each other. The swing arms 5 are connected to the adjacent transmission components 3. A swing seat 6 is rotatably connected between the adjacent swing arms 5 on the left and right parts. A pressure arm 7 is slidably connected to the lower side of the swing seat 6. A gasket is provided on the lower side of the pressure arm 7 to avoid wear of the material. Four elastic parts are connected between the pressure arm 7 and the adjacent swing seat 6. Fourteen top wheels 8 are rotatably connected to the lower part of the base plate 1. The top wheels 8 are in contact with the adjacent pressure arms 7. A covering mechanism 9 is provided on the base plate 1.

[0021] like Figure 1 , Figure 2 and Figure 4 As shown, the cover mechanism 9 includes a dust cover 91 and an electric fan 92. The dust cover 91 is clamped between the upper sides of the front and rear parts of the base plate 1, and two electric fans 92 are rotatably connected to the lower sides of the left and right parts of the dust cover 91.

[0022] When using the utility model, first install the base plate 1 on the crystal bonding machine. When the material in the crystal bonding machine is transmitted to the base plate 1, start the servo motor 2, and the transmission wheel in the transmission assembly 3 rotates, driving the belt to rotate. The belt is squeezed by the rotation of the tensioning wheel 4 to make the belt compacted. While the transmission wheel rotates, it drives the rotary arm 5 to rotate and the rotary seat 6 to rotate, so that the pressure arm 7 contacts with the material, the spring contracts, and the material is squeezed. Then the top wheel 8 rotates to transmit the material, thereby achieving the effect of intermittent transmission of the material, which is convenient for adapting to the production speed of different production lines. When the material is being transmitted, the dust cover 91 can be snap-fitted with the base plate 1 to prevent dust from the material, and then the electric fan 92 is started to remove impurities on the material.

[0023] like Figure 1 , Figure 2 and Figure 5 As shown, it also includes a static elimination mechanism 10, which includes a capacitor conductor 101, an insulating seat 102 and an electrostatic brush 103. The capacitor conductor 101 is connected between the left and right sides of the base plate 1 that are close to each other, and the insulating seat 102 is clamped on the left and right sides of the base plate 1. The insulating seat 102 is connected to the adjacent capacitor conductor 101 through electric wires, and the lower side of the insulating seat 102 is connected to the electrostatic brush 103.

[0024] The static electricity removal mechanism 10 of the device can be used to remove static electricity on the material. The insulating seat 102 is snap-fitted to the base plate 1. When the material moves to the insulating seat 102, the static electricity brush 103 conducts the static electricity on the material to the capacitor conductor 101, thereby removing the static electricity on the material and avoiding affecting the subsequent processing of the material.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A material pushing fixture for a die bonding machine, characterized by: The invention comprises a base plate (1), a servo motor (2), a transmission assembly (3), a tensioning wheel (4), a rotary arm (5), a rotary seat (6), a pressure arm (7), a top wheel (8) and a cover protection mechanism (9). The front and rear parts of the base plate (1) are both connected to the servo motor (2). The output shaft of the servo motor (2) and the base plate (1) are both connected to the transmission assembly (3). The front and rear sides of the upper part of the base plate (1) are both rotatably connected to a plurality of tensioning wheels (4). The tensioning wheels (4) are all squeezed and matched with the adjacent transmission assembly (3). The front and rear parts of the base plate (1) are close to each other. A plurality of rotary arms (5) are rotatably connected to one side of the bottom plate (1), and the rotary arms (5) are connected to adjacent transmission components (3). A rotary seat (6) is rotatably connected between the adjacent rotary arms (5) on the left and right sides. A pressing arm (7) is slidably connected to the lower side of the rotary seat (6). A plurality of elastic members are connected between the pressing arm (7) and the adjacent rotary seat (6). A plurality of top wheels (8) are rotatably connected to the lower part of the bottom plate (1), and the top wheels (8) are in contact with adjacent pressing arms (7). A covering mechanism (9) capable of covering the material to prevent dust is provided on the bottom plate (1).

2. A die-bonding machine pusher fixture according to claim 1, characterized in that: The cover protection mechanism (9) comprises a dust cover (91) and an electric fan (92). The dust cover (91) is clamped between the upper sides of the front and rear parts of the bottom plate (1). The lower sides of the left and right parts of the dust cover (91) are rotatably connected to a plurality of electric fans (92). The dust cover (91) is clamped and matched with the bottom plate (1) to prevent dust from falling on the materials. Then, the electric fan (92) is started to remove impurities on the materials.

3. A die-bonding machine pusher fixture according to claim 2, characterized in that: The invention also comprises a static elimination mechanism (10), the static elimination mechanism (10) comprising a capacitor conductor (101), an insulating seat (102) and an electrostatic brush (103); the capacitor conductor (101) is connected between the left and right sides of the bottom plate (1) that are close to each other; the insulating seat (102) is clamped on the left and right sides of the bottom plate (1); the insulating seat (102) is connected to the adjacent capacitor conductor (101) through an electric wire; the lower side of the insulating seat (102) is connected to the electrostatic brush (103); the insulating seat (102) is clamped and matched with the bottom plate (1); when the material moves to the insulating seat (102), the electrostatic brush (103) conducts the static electricity on the material to the capacitor conductor (101).

4. A die-bonding machine pusher fixture according to claim 1, characterized in that: The transmission assembly (3) comprises a transmission wheel and a belt. The front and rear sides of the base plate (1) are both rotatably connected to a plurality of transmission wheels. The output shafts of the servo motor (2) are both connected to adjacent transmission wheels. Belts are wound between the front and rear transmission wheels.

5. A die-bonding machine pusher fixture according to claim 1, characterized in that: The lower side of the pressing arm (7) is provided with a gasket.

6. A die-bonding machine pusher fixture according to claim 1, characterized in that: The elastic member is a spring.

Images