A bonding tool adapted to a bonding machine

Abstract

A bonding fixture adapted to a bonding machine includes a frame, a tray conveyor line, a lifting and positioning mechanism, and a clamping mechanism. The lifting and positioning mechanism includes a first cylinder fixed to the frame. A first connecting frame is fixed to the output end of the first cylinder. A boss is fixed to the center of the top of the first connecting frame, and a positioning plate is fixed to the top of the boss. First positioning pins are provided at both ends of the top of the positioning plate. Two top blocks are spaced apart between the two first positioning pins on the top of the positioning plate, and each top block is provided with a second positioning pin. The clamping mechanism includes multiple second cylinders fixed to the frame. Second connecting frames are fixed to the output ends of the second cylinders, and the tops of the second connecting frames are fixedly connected to a terminal upper pressure plate. This application uses the lifting and positioning mechanism to position the tray and product, lifting the tray and product. The terminal upper pressure plate and the lifting and positioning mechanism clamp the product, preventing the product from moving during the bonding process.

Description

Technical Field

[0001] This application relates to the field of bonding machine technology, and in particular to a bonding fixture adapted to a bonding machine. Background Technology

[0002] A bonding machine is a precision instrument used in the field of physics, primarily for bonding processes in the fabrication of microelectronic materials, optoelectronic materials, and nanoscale microelectromechanical components. Its core function is to tightly connect metal leads to substrate pads by applying pressure, heat, and ultrasonic energy, or to bond two aligned wafers in a vacuum environment to form electrical interconnects or packaged structures. Bonding fixtures are suitable for bonding machines to perform processes such as DBC bonding with other parts using bonding wires.

[0003] Existing bonding fixtures apply high bonding pressure, which can cause product misalignment during bonding, resulting in low yield.

[0004] Therefore, we propose a bonding fixture adapted to the bonding machine. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a bonding fixture adapted to a bonding machine, which positions the tray and product through a lifting and positioning mechanism, then lifts the tray and product, and drives the terminal pressure plate to move downward through a clamping mechanism. The terminal pressure plate and the lifting and positioning mechanism clamp the product to prevent the product from moving during the bonding process.

[0006] The technical solution adopted in this application is as follows:

[0007] A bonding fixture adapted to a bonding machine, comprising:

[0008] frame;

[0009] A pallet conveyor line, mounted on a frame, is used to transport pallets on which products are placed.

[0010] The lifting and positioning mechanism is installed in the frame;

[0011] The clamping mechanism is located at the top of the frame and on both sides of the pallet conveyor line;

[0012] The lifting and positioning mechanism includes a first cylinder, which is fixed on the frame. A first connecting frame is fixed to the output end of the first cylinder. A boss is fixed in the middle of the top of the first connecting frame. A positioning plate is fixed on the top of the boss. First positioning pins are provided at both ends of the top of the positioning plate. Two top blocks are provided at intervals between the two first positioning pins on the top of the positioning plate. Second positioning pins are provided on both top blocks.

[0013] The clamping mechanism includes multiple second cylinders, which are fixed on the frame. The output end of the second cylinder is fixed with a second connecting frame, and the top of the second connecting frame is fixedly connected to the terminal pressure plate.

[0014] Its further features are:

[0015] Both ends of the first connecting frame are provided with a first slider, the first slider is slidably mounted on a first slide rail, and the first slide rail is fixed on the frame.

[0016] The first connecting frame has a first buffer on both sides of the boss at the top.

[0017] A second slider is fixed on one side of the second connecting frame. The second slider is slidably mounted on the second slide rail. The second slide rail is fixed on the support frame, and the support frame is fixed on the machine frame.

[0018] A second buffer is also provided on the support frame.

[0019] Multiple second cylinders are evenly distributed.

[0020] The frame includes an end face fixing frame, a side fixing frame, and a large plate. The end face fixing frame is fixedly connected to the side fixing frame, and the large plate is fixedly connected to both the end face fixing frame and the side fixing frame.

[0021] It also includes multiple pairs of through-beam sensors for detecting trays and products.

[0022] The pallet conveyor line includes a conveyor wheel, a conveyor belt, and a drive assembly. The conveyor belt is fitted onto the conveyor wheel, and the conveyor wheel is driven by the drive assembly.

[0023] The beneficial effects of this application are as follows:

[0024] This application features a compact and reasonable structure, and is easy to operate. The first positioning pin engages with the positioning hole of the tray to position the tray. The second positioning pin engages with the positioning hole of the product to position the product. The first and second positioning pins work together to achieve precise positioning of the tray and the product. As the first cylinder extends, the positioning plate lifts the tray upwards, and the positioning plate, through the top block, lifts the product upwards. The second cylinder retracts, and through the second connecting frame, it drives the terminal upper pressure plate downwards. The terminal upper pressure plate presses down on the product, and the terminal upper pressure plate and the lifting and positioning mechanism work together to fix the product, preventing displacement during the bonding process and improving work efficiency. Then, the bonding head descends to begin operation.

[0025] In addition, this application also has the following advantages:

[0026] (1) When the first cylinder extends or retracts, the first cylinder drives the first connecting frame to move, and the first connecting frame drives the first slider to move along the first slide rail, making the movement of the first connecting frame more precise.

[0027] (2) Multiple second cylinders are evenly distributed, resulting in a high level of the terminal pressure plate. During the descent of the terminal pressure plate, the second buffer makes the descent of the terminal pressure plate more stable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this application.

[0029] Figure 2 This is a schematic diagram of the rack for this application.

[0030] Figure 3 This is a schematic diagram of the lifting and positioning mechanism of this application.

[0031] Figure 4 This is a schematic diagram of the clamping mechanism in this application.

[0032] Figure 5 This is a schematic diagram of the bonding fixture of this application installed in a bonding machine.

[0033] The components include: 1. Frame; 2. Lifting and positioning mechanism; 3. Pressing mechanism; 4. Terminal upper pressure plate; 5. Pallet conveyor line; 6. Pallet;

[0034] 201. First cylinder; 202. First connecting frame; 203. Boss; 204. First slide rail; 205. First slider; 206. First buffer; 207. Positioning plate; 208. First positioning pin; 209. Top block; 210. Second positioning pin;

[0035] 301. Second cylinder; 302. Second connecting frame; 303. Support frame; 304. Second slide rail; 305. Second slider; 306. Second buffer. Detailed Implementation

[0036] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0037] like Figures 1-4 As shown, a bonding fixture adapted to a bonding machine includes a frame 1, a lifting and positioning mechanism 2, a clamping mechanism 3, a terminal upper pressure plate 4, and a tray conveyor line 5.

[0038] A pallet conveyor line 5 is installed on the top of the frame 1. The pallet 6 is conveyed through the pallet conveyor line 5, and the product is placed on the pallet 6.

[0039] In one embodiment, the pallet conveyor line 5 includes a conveyor wheel, a conveyor belt, and a drive assembly. The conveyor belt is fitted onto the conveyor wheel, and the conveyor wheel is driven by the drive assembly.

[0040] Specifically, drive components can include motors, etc.

[0041] Specifically, the pallet conveyor line 5 may also include photoelectric sensors, proximity sensors, etc., to detect the position of the pallet 6 and perform positioning.

[0042] The lifting and positioning mechanism 2 is installed in the frame 1. The lifting and positioning mechanism 2 includes a first cylinder 201, which is fixed on the frame 1. A first connecting frame 202 is fixed to the output end of the first cylinder 201. A first slider 205 is provided at both ends of the first connecting frame 202. The first slider 205 is slidably mounted on a first slide rail 204, which is fixed on the frame 1. A boss 203 is fixed in the middle of the top of the first connecting frame 202. A first buffer 206 is provided on both sides of the boss 203 on the top of the first connecting frame 202. A positioning plate 207 is fixed on the top of the boss 203. A first positioning pin 208 is provided at both ends of the top of the positioning plate 207. Two top blocks 209 are provided at intervals between the two first positioning pins 208 on the top of the positioning plate 207. A second positioning pin 210 is provided on each of the two top blocks 209.

[0043] After pallet conveyor line 5 transports pallet 6 to the designated position, pallet conveyor line 5 stops working, and the first cylinder 201 extends. The first cylinder 201 drives the positioning plate 207 upward through the first connecting frame 202 and the boss 203. The positioning plate 207 drives the first positioning pin 208 upward, and the positioning plate 207 also drives the second positioning pin 210 upward through the top block 209. The first positioning pin 208 cooperates with the positioning hole of pallet 6 to achieve the positioning of pallet 6. The second positioning pin 210 cooperates with the positioning hole of the product to achieve the positioning of the product. The first positioning pin 208 and the second positioning pin 210 cooperate to achieve precise positioning of pallet 6 and product. As the first cylinder 201 extends, the positioning plate 207 lifts pallet 6 upward, and the positioning plate 207 lifts product upward through the top block 209.

[0044] When the first cylinder 201 extends or retracts, the first cylinder 201 drives the first connecting frame 202 to move, and the first connecting frame 202 drives the first slider 205 to move along the first slide rail 204, making the movement of the first connecting frame 202 more precise.

[0045] The clamping mechanism 3 is located on the top of the frame 1 and on both sides of the pallet conveyor line 5. The clamping mechanism 3 includes multiple second cylinders 301, which are fixed to the frame 1. A second connecting frame 302 is fixed to the output end of the second cylinder 301. The top of the second connecting frame 302 is fixedly connected to the terminal pressure plate 4. A second slider 305 is fixed to one side of the second connecting frame 302. The second slider 305 is slidably mounted on a second slide rail 304. The second slide rail 304 is fixed to a support frame 303, which is fixed to the frame 1. A second buffer 306 is also provided on the support frame 303.

[0046] After the lifting and positioning mechanism 2 lifts the tray 6 and the product, the second cylinder 301 retracts. The second cylinder 301 drives the terminal upper pressure plate 4 to move downward through the second connecting frame 302. The terminal upper pressure plate 4 presses down on the product. The terminal upper pressure plate 4 and the lifting and positioning mechanism 2 work together to fix the product, preventing the product from shifting during the bonding process and improving work efficiency.

[0047] Multiple second cylinders 301 are evenly distributed, which makes the terminal pressure plate 4 highly level.

[0048] During the descent of the terminal pressure plate 4, the second buffer 306 makes the descent of the terminal pressure plate 4 more slow.

[0049] In one embodiment, the frame 1 includes an end face fixing frame, a side fixing frame, and a large plate. The end face fixing frame is fixedly connected to the side fixing frame, and the large plate is fixedly connected to both the end face fixing frame and the side fixing frame.

[0050] In one embodiment, multiple pairs of through-beam sensors are provided for detecting the tray 6 and the product.

[0051] like Figure 5 As shown, the bonding fixture is installed inside the bonding machine, saving space and eliminating human error, making it efficient and accurate.

[0052] In practical use, the pallet conveyor line 5 transports the pallet 6 and the products on it. After the pallet conveyor line 5 transports the pallet 6 to the designated position, it stops working, and the first cylinder 201 extends. The first cylinder 201 drives the positioning plate 207 upward through the first connecting frame 202 and the boss 203. The positioning plate 207 drives the first positioning pin 208 upward, and the positioning plate 207 also drives the second positioning pin 210 upward through the top block 209. The first positioning pin 208 engages with the positioning hole of the pallet 6 to achieve positioning of the pallet 6. The second positioning pin 210 engages with the positioning hole of the product to achieve positioning of the product. The first positioning pin 208 and the second positioning pin 210 work together to achieve precise positioning of the pallet 6 and the product. As the first cylinder 201 extends, the positioning plate 207 lifts the pallet 6 upward, and the positioning plate 207 lifts the product upward through the top block 209. The second cylinder 301 retracts, and the second cylinder 301 drives the terminal upper pressure plate 4 to move downward through the second connecting frame 302. The terminal upper pressure plate 4 presses the product, and the terminal upper pressure plate 4 and the lifting and positioning mechanism 2 cooperate to fix the product, preventing the product from shifting during the bonding process and improving work efficiency; then the bonding head descends to start the operation.

[0053] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A bonding fixture adapted to a bonding machine, characterized in that, include: Rack (1); A pallet conveyor line (5) is set on a frame (1) for conveying pallets (6) on which products are placed; The lifting and positioning mechanism (2) is installed in the frame (1); The clamping mechanism (3) is located on the top of the frame (1) and on both sides of the pallet conveyor line (5); The lifting and positioning mechanism (2) includes a first cylinder (201), which is fixed on the frame (1). The output end of the first cylinder (201) is fixed with a first connecting frame (202). A boss (203) is fixed in the middle of the top of the first connecting frame (202). A positioning plate (207) is fixed on the top of the boss (203). A first positioning pin (208) is provided at both ends of the top of the positioning plate (207). Two top blocks (209) are provided at intervals between the two first positioning pins (208) on the top of the positioning plate (207). A second positioning pin (210) is provided on each of the two top blocks (209). The clamping mechanism (3) includes multiple second cylinders (301). The second cylinders (301) are fixed on the frame (1). The output end of the second cylinder (301) is fixed with a second connecting frame (302). The top of the second connecting frame (302) is fixedly connected to the terminal pressure plate (4).

2. The bonding fixture adapted to a bonding machine as described in claim 1, characterized in that: Both ends of the first connecting frame (202) are provided with first sliders (205), the first sliders (205) are slidably mounted on the first slide rail (204), and the first slide rail (204) is fixed on the frame (1).

3. The bonding fixture adapted to a bonding machine as described in claim 2, characterized in that: The first connecting frame (202) has a first buffer (206) on both sides of the boss (203) at the top.

4. A bonding fixture adapted to a bonding machine as described in claim 1, characterized in that: The second connecting frame (302) has a second slider (305) fixed on one side. The second slider (305) is slidably mounted on the second slide rail (304). The second slide rail (304) is fixed on the support frame (303). The support frame (303) is fixed on the machine frame (1).

5. A bonding fixture adapted to a bonding machine as described in claim 4, characterized in that: A second buffer (306) is also provided on the support frame (303).

6. A bonding fixture adapted to a bonding machine as described in claim 1, characterized in that: Multiple second cylinders (301) are evenly distributed.

7. A bonding fixture adapted to a bonding machine as described in claim 1, characterized in that: The frame (1) includes an end face fixing frame, a side fixing frame and a large plate. The end face fixing frame is fixedly connected to the side fixing frame, and the large plate is fixedly connected to both the end face fixing frame and the side fixing frame.

8. A bonding fixture adapted to a bonding machine as described in claim 1, characterized in that: It also includes multiple pairs of through-beam sensors for detecting the tray (6) and the product.

9. A bonding fixture adapted to a bonding machine as described in claim 1, characterized in that: The pallet conveyor line (5) includes a conveyor wheel, a conveyor belt and a drive assembly. The conveyor belt is fitted on the conveyor wheel and the conveyor wheel is driven by the drive assembly.

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