Automatic cutting device for metal bonding wire

Abstract

The utility model relates to the technical field of bonding wire cutting, in particular to an automatic metal bonding wire cutting device which comprises an installation frame, two sliding grooves are formed in the installation frame, two sliding blocks are arranged between the two sliding grooves, and a cutting knife is fixedly arranged on one side of each sliding block. The sliding block is moved through a handle, the sliding block slides out of the mounting frame, a new sliding block and a new cutting knife are replaced, a positioning rod is sleeved with a positioning hole of the sliding block, the sliding block continues to be pushed, the sliding block slides into the mounting frame, at the moment, an electric telescopic rod is started to stretch, and therefore an extrusion block is driven to stretch and is inserted into a containing groove of the sliding block, and at the moment, the sliding block is limited by the extrusion block; and the cutting knife only needs to be manually taken out and repositioned in the whole process, so that the replacement speed of the cutting knife is increased, and the cutting efficiency of the device on the bonding wire is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bonding wire cutting, in particular to an automatic cutting device for metal bonding wires. Background Art

[0002] Metal bonding wires are fine metal wire inner leads used to achieve electrical connection between the input / output bonding points of the circuit inside the chip and the internal contact points of the lead frame when assembling semiconductor devices and integrated circuits. During processing, the metal bonding wires need to be driven to move by rotating rollers so that the metal bonding wires are continuously pulled thinner through specific mold holes. When too much metal bonding wire is wrapped around the rotating roller, the metal wires are cut by a cutting device. The cutting device usually includes an electric telescopic rod and a cutting knife. The movement of the cutting knife is controlled by the electric telescopic rod to cut the metal bonding wires.

[0003] The patent specification with the announcement number CN216911942U discloses a cutting and positioning device for bonding wire processing, including a table, a box body is arranged on the right side of the upper end of the table, and a rotating assembly is arranged on the front of the box body. The utility model adopts the above structure, sets the winding roller inside the box body, and makes one end of the bonding wire body pass through the box body, drives the moving plate to move through the moving mechanism, and stabilizes the position of the moving plate through the sliding assembly, so that the clamping assembly contacts the bonding wire body and clamps the bonding wire, and then makes the moving mechanism and the rotating assembly run synchronously, so that the moving plate can drive one end of the bonding wire body to move synchronously through the clamping assembly, so that the bonding wire body can be pulled to the required length, and then the upper cutting knife and the lower cutting knife can be used for cutting. After the cutting, the bonding wire body is discharged through the groove, avoiding the inconvenience caused by manual length setting, and greatly improving the length setting efficiency and length setting quality.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned cutting and positioning device for bonding wire processing has the following problems: the device cuts the bonding wire by means of an upper cutter and a lower cutter, and the upper cutter and the lower cutter are fixed on the device. When the upper cutter or the lower cutter is damaged, the device needs to be disassembled to replace the cutter, which wastes time and manpower and reduces the cutting efficiency of the bonding wire by the device. In view of this, an automatic cutting device for metal bonding wires is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an automatic cutting device for metal bonding wires.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: an automatic cutting device for metal bonding wires comprises a mounting frame, wherein two slide grooves are provided inside the mounting frame, two slide blocks are provided between the two slide grooves, a cutting knife is fixedly provided on one side of the two slide blocks, a fixing seat is fixedly provided inside the two slide grooves, two positioning rods are fixedly provided on the sides of the two fixing seats, a reset spring is provided on the sides of the four positioning rods, a placement groove is provided on the other side of the two slide blocks, an extrusion block is provided inside the two placement grooves, an electric telescopic rod is provided on one side of the two extrusion blocks, the telescopic ends of the two electric telescopic rods are respectively fixedly connected to one side of the two extrusion blocks, the fixed ends of the two electric telescopic rods are fixedly provided with a fixing frame, one side of the two fixing frames is fixedly connected to the side of the mounting frame, two limit rings are provided inside the mounting frame, and a handle is fixedly provided on the other side of the two slide blocks.

[0007] As a further description of the above technical solution: the side surfaces of the two sliders slide relative to the inside of the two slide grooves respectively, and one side of the four reset springs is fixedly connected to the side surfaces of the two fixed seats respectively. The reset spring facilitates the resetting of the slider, so that the cutting knife can automatically reset after cutting is completed, thereby preventing the cutting knife from affecting the movement of the bonding wire.

[0008] As a further description of the above technical solution: two positioning holes are provided inside the two sliders, and the side surfaces of the four positioning rods slide relative to the insides of the four positioning holes respectively, so that the sliders are convenient for fixing the cutting knife.

[0009] As a further description of the above technical solution: four support seats are fixedly provided inside the mounting frame, and one side of the four support seats is fixedly connected to the side surfaces of the two limiting rings respectively, so that the support seats are convenient for limiting the limiting rings.

[0010] As a further description of the above technical solution: a dust suction pipe is fixedly provided inside one of the support seats, and a fan is provided at one end of the dust suction pipe. The fan is convenient for generating suction, so that metal debris is sucked into the fan through the dust suction pipe.

[0011] As a further description of the above technical solution: the air inlet of the fan is fixedly connected to one end of the dust suction pipe, and the air outlet of the fan is fixedly provided with a dust outlet pipe, which facilitates the metal debris in the fan to enter the dust collection box.

[0012] As a further description of the above technical solution: a dust collecting box is fixedly provided at one end of the dust outlet pipe, a fixing groove is opened on one side of the dust collecting box, a filter is fixedly provided inside the fixing groove, and the dust collecting box is convenient for limiting the filter.

[0013] As a further description of the above technical solution: a movable groove is opened on one side of the dust collecting box, and a collecting box is arranged inside the movable groove, and the collecting box is convenient for collecting metal debris and dust.

[0014] The utility model has the following beneficial effects:

[0015] The automatic cutting device for metal bonding wires designed in the utility model is designed to cooperate with each other. When the cutting knife is damaged during use, the electric telescopic rod is started to shorten. At this time, the limit of the slider on the extrusion block disappears. The slider is moved by the handle to make the slider slide out of the mounting frame. A new slider and cutting knife are replaced. The positioning hole of the slider is set on the positioning rod. The slider is pushed continuously to make the slider slide into the mounting frame. At this time, the electric telescopic rod is started to extend, thereby driving the extrusion block to extend, so that the extrusion block is inserted into the placement groove of the slider. At this time, the slider is limited by the extrusion block and cannot slide out of the mounting frame, thereby completing the replacement of the cutting knife. The whole process only requires manual removal and repositioning of the cutting knife, which improves the replacement speed of the cutting knife and facilitates improving the cutting efficiency of the bonding wire by the device.

[0016] The utility model designs an automatic cutting device for metal bonding wires. Through design coordination, the fan generates suction, so that metal debris enters the fan through the dust suction pipe, and the metal debris in the fan enters the dust collecting box through the dust outlet pipe. The metal debris in the dust collecting box is blocked by the filter and falls into the collection box, and the air is discharged into the air through the filter. When a large amount of debris accumulates in the collection box, the collection box can be taken out, the metal debris can be cleaned, and then the collection box can be put back into the dust collecting box, so that the device can automatically collect the metal debris generated in the processing process, and avoid the debris and powder being inhaled by the operator to affect the operator's lungs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the installation structure of the limit ring of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the slider of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the electric telescopic rod of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the dust collecting box of the utility model.

[0022] Legend:

[0023] 1. Mounting frame; 2. Sliding block; 3. Cutting knife; 4. Fixed seat; 5. Positioning rod; 6. Reset spring; 7. Extrusion block; 8. Electric telescopic rod; 9. Fixed frame; 10. Limiting ring; 11. Support seat; 12. Dust suction pipe; 13. Fan; 14. Dust outlet pipe; 15. Dust collection box; 16. Filter; 17. Collection box; 18. Handle. DETAILED DESCRIPTION

[0024] Reference Figure 1-Figure 5 The utility model provides an automatic cutting device for metal bonding wires: comprises a mounting frame 1, the mounting frame 1 is convenient for limiting the position of the slider 2, two slide grooves are provided inside the mounting frame 1, two sliders 2 are provided between the two slide grooves, a cutting knife 3 is fixed on one side of the two sliders 2, the cutting knife 3 is convenient for cutting the bonding wire, a fixing seat 4 is fixed inside the two slide grooves, the fixing seat 4 is convenient for fixing the positioning rod 5 and the reset spring 6, two positioning rods 5 are fixed on the sides of the two fixing seats 4, the sides of the four positioning rods 5 are provided with reset springs 6, the reset springs 6 are convenient for the slider 2 The slider 2 is reset by squeezing, and a placement groove is provided on the other side of the two sliders 2. Extrusion blocks 7 are provided inside the two placement grooves. An electric telescopic rod 8 is provided on one side of the two extrusion blocks 7. The telescopic ends of the two electric telescopic rods 8 are respectively fixedly connected to one side of the two extrusion blocks 7. The fixed ends of the two electric telescopic rods 8 are fixedly provided with a fixing frame 9. The fixing frame 9 is convenient for limiting the electric telescopic rod 8. One side of the two fixing frames 9 is fixedly connected to the side of the mounting frame 1. Two limiting rings 10 are provided inside the mounting frame 1. A handle 18 is fixedly provided on the other side of the two sliders 2.

[0025] As a further implementation scheme of the above technical scheme: the side surfaces of the two sliders 2 slide relative to the inside of the two slide grooves respectively, and one side of the four reset springs 6 is fixedly connected to the side surfaces of the two fixed seats 4 respectively. The reset springs 6 facilitate resetting the sliders 2, so that the cutting knife 3 can automatically reset after cutting is completed, thereby preventing the cutting knife 3 from affecting the movement of the bonding wire.

[0026] As a further implementation scheme of the above technical scheme: two positioning holes are provided inside the two sliders 2, and the sides of the four positioning rods 5 slide with the inside of the four positioning holes respectively, so that the sliders 2 are convenient for fixing the cutting knife 3.

[0027] As a further implementation scheme of the above technical scheme: four support seats 11 are fixedly provided inside the mounting frame 1, and one side of the four support seats 11 is fixedly connected to the side surfaces of the two limiting rings 10 respectively, so that the support seats 11 are convenient for limiting the limiting rings 10.

[0028] During specific implementation: during bonding wire processing, the bonding wire is passed through a specific die hole, and the bonding wire can be made thinner through the die hole. Then, the bonding wire is passed through two limiting rings 10, and the limiting rings 10 are used to limit the bonding wire to prevent the bonding wire from being offset and affecting the cutting of the cutting knife 3. Subsequently, the bonding wire is wound on a rotating roller, and the rotating roller is driven to rotate by a motor, thereby driving the bonding wire to move, and realizing automatic processing of the bonding wire. When there are more bonding wires wound on the rotating roller, the two electric telescopic rods 8 are started to extend, thereby driving the two extrusion blocks 7 to approach each other, and the two extrusion blocks 7 squeeze the two sliders 2 respectively, thereby driving the two sliders 2 to approach each other, thereby driving the two cutting knives 3 to approach each other, and cutting the bonding wire. After cutting, the electric telescopic rod 8 is started to shorten, thereby driving the two extrusion blocks 7 to move away from each other. At this time, the extrusion force of the extrusion block 7 on the slider 2 disappears, and the slider 2 is pushed by the reset spring 6, so that the two sliders 2 move away from each other, and the slider 2 is limited by the extrusion block 7. The two cutting knives 3 are prevented from sliding out of the mounting frame 1, thereby driving the two cutting knives 3 to move away from each other, thereby realizing automatic resetting of the cutting knives 3, thereby realizing automatic cutting of the bonding wire. When the cutting knife 3 is damaged during use, the electric telescopic rod 8 is started to be further shortened. At this time, the limit of the extrusion block 7 on the slider 2 disappears, and the slider 2 can slide out of the mounting frame 1. The slider 2 is moved by the handle 18 so that the slider 2 slides out of the mounting frame 1, and the positioning rod 5 slides out of the positioning hole. A new slider 2 and the cutting knife 3 are replaced, and the positioning hole of the slider 2 is sleeved on the positioning rod 5, the slider 2 is positioned, and the slider 2 is continued to be pushed so that the slider 2 slides into the mounting frame 1. At this time, the electric telescopic rod 8 is started to extend, thereby driving the extrusion block 7 to extend, so that the extrusion block 7 is inserted into the placement groove of the slider 2. At this time, the slider 2 is limited by the extrusion block 7 and cannot slide out of the mounting frame 1, thereby completing the replacement of the cutting knife 3. The whole process only requires manual removal and repositioning of the cutting knife 3, which improves the replacement speed of the cutting knife 3 and is convenient for improving the cutting efficiency of the bonding wire by the device.

[0029] As a further implementation scheme of the above technical scheme: a dust suction pipe 12 is fixedly provided inside one of the support seats 11, and a fan 13 is provided at one end of the dust suction pipe 12. The fan 13 is convenient for generating suction, so that metal debris is sucked into the fan 13 through the dust suction pipe 12.

[0030] As a further implementation scheme of the above technical scheme: the air inlet of the fan 13 is fixedly connected to one end of the dust suction pipe 12, and the air outlet of the fan 13 is fixedly provided with a dust outlet pipe 14, which facilitates the metal debris in the fan 13 to enter the dust collecting box 15.

[0031] As a further implementation scheme of the above technical scheme: a dust collecting box 15 is fixedly provided at one end of the dust outlet pipe 14 , a fixing groove is opened on one side of the dust collecting box 15 , a filter 16 is fixedly provided inside the fixing groove, and the dust collecting box 15 is convenient for limiting the filter 16 .

[0032] As a further implementation of the above technical solution: a movable groove is opened on one side of the dust collecting box 15, and a collecting box 17 is arranged inside the movable groove, and the collecting box 17 is convenient for collecting metal debris and dust.

[0033] During specific implementation: when the cutting knife 3 cuts the bonding wire, metal debris and powder will be generated. When the metal debris is blown up by the wind, it is easy to be inhaled by the operator, causing damage to the operator's lungs. The fan 13 is started, and the fan 13 generates suction, so that the metal debris enters the fan 13 through the dust suction pipe 12, and the metal debris in the fan 13 enters the dust collecting box 15 through the dust outlet pipe 14. The metal debris in the dust collecting box 15 is blocked by the filter 16 and falls into the collection box 17. The air is discharged into the air through the filter 16. When there is a lot of debris accumulated in the collection box 17, the collection box 17 can be taken out to clean the metal debris, and then the collection box 17 can be put back into the dust collecting box 15, so that the device can automatically collect the metal debris generated in the processing process to prevent the debris and powder from being inhaled by the operator and affecting the operator's lungs.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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. An automated metal bonding wire cutting device, comprising a mounting frame (1), characterized in that: Two slide grooves are provided inside the mounting frame (1), two sliders (2) are provided between the two slide grooves, a cutting knife (3) is fixedly provided on one side of the two sliders (2), a fixing seat (4) is fixedly provided inside the two slide grooves, two positioning rods (5) are fixedly provided on the sides of the two fixing seats (4), and a return spring (6) is provided on the sides of the four positioning rods (5), a placement groove is provided on the other side of the two sliders (2), an extrusion block (7) is provided inside the two placement grooves, an electric telescopic rod (8) is provided on one side of the two extrusion blocks (7), the telescopic ends of the two electric telescopic rods (8) are respectively fixedly connected to one side of the two extrusion blocks (7), a fixing frame (9) is fixedly provided on the fixed ends of the two electric telescopic rods (8), one side of the two fixing frames (9) is fixedly connected to the side of the mounting frame (1), two limiting rings (10) are provided inside the mounting frame (1), and a handle (18) is fixedly provided on the other side of the two sliders (2).

2. The metal bonding wire automatic cutting device according to claim 1, characterized in that: The side surfaces of the two sliding blocks (2) slide relative to each other with the insides of the two sliding grooves, and one side of the four return springs (6) is fixedly connected to the side surfaces of the two fixing seats (4).

3. The metal bonding wire automatic cutting device according to claim 1, characterized in that: Two positioning holes are respectively provided inside the two sliding blocks (2), and the side surfaces of the four positioning rods (5) slide relative to the insides of the four positioning holes.

4. The metal bonding wire automatic cutting device according to claim 1, characterized in that: Four support seats (11) are fixedly arranged inside the mounting frame (1), and one side of the four support seats (11) is respectively fixedly connected to the side surfaces of the two limiting rings (10).

5. The metal bonding wire automatic cutting device according to claim 4, characterized in that: A dust suction pipe (12) is fixedly arranged inside one of the support seats (11), and a fan (13) is arranged at one end of the dust suction pipe (12).

6. The metal bonding wire automatic cutting device according to claim 5, characterized in that: The air inlet of the fan (13) is fixedly connected to one end of the dust suction pipe (12), and the air outlet of the fan (13) is fixedly provided with a dust outlet pipe (14).

7. The metal bonding wire automatic cutting device according to claim 6, characterized in that: A dust collecting box (15) is fixedly provided at one end of the dust outlet pipe (14), a fixing groove is provided at one side of the dust collecting box (15), and a filter screen (16) is fixedly provided inside the fixing groove.

8. The metal bonding wire automatic cutting device according to claim 7, characterized in that: A movable groove is provided on one side of the dust collecting box (15), and a collecting box (17) is provided inside the movable groove.

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