Suction nozzle replacement clamp

Abstract

The utility model provides a suction nozzle replacement clamp. The suction nozzle replacement clamp comprises a clamp side plate; the clamp reserved gap is formed in the middle of one side of the clamp side plate, clamping blocks are fixedly installed on the two sides of the inner wall of the clamp reserved gap, and a clamp reserved suction nozzle hole is formed in one side of the top of each clamping block; the elastic piece is arranged on one side of the middle of the interior of the clamp reserved gap. According to the suction nozzle replacement clamp provided by the utility model, the clamp side plate, the clamping block, the elastic piece, the clamp reserved gap and the clamp reserved suction nozzle hole are matched with one another, so that an operator can conveniently clamp the suction nozzle through the clamp, the clamp for holding the suction nozzle by a bare hand can be effectively replaced, and the phenomena that the operator is easily scalded and the suction nozzle falls into equipment when the suction nozzle is replaced are prevented; and therefore, the working efficiency is improved, and the problem of short circuit of the circuit board can be solved.

Description

Technical Field

[0001] This utility model relates to the semiconductor packaging industry, and in particular to a nozzle replacement fixture. Background Technology

[0002] The bakelite nozzle of a high-temperature die bonder is an important component of the machine. It is usually made of bakelite, which has excellent high-temperature resistance and can maintain a stable shape and performance in the high-temperature working environment of the die bonder. Its ingenious design and precise nozzle tip shape and size can perfectly fit the chip and other objects being picked up. It can firmly grasp the chip through negative pressure adsorption, ensuring the positional accuracy and stability of the chip during chip picking and placing, avoiding chip damage or displacement, thus providing a strong guarantee for the high-precision and high-quality die bonding operation of the high-temperature die bonder.

[0003] Currently, die bonders use bakelite nozzles and employ two processes: 1. The back of the chip has a gold coating, which is melted at a high temperature of over 400 degrees Celsius, then bonded to the frame substrate, and cooled to solidify; 2. Tin-lead wire is melted onto the frame substrate at a high temperature, then the chip is placed on it, and cooled to solidify.

[0004] When replacing the bakelite nozzle in a high-temperature die bonder, the nozzle is held with bare hands, the fixing screws are loosened with a hex wrench, the nozzle is removed, and then a new nozzle is placed in the welding head holder and the fixing screws are tightened. Because the nozzle operates at an ambient temperature of around 400 degrees Celsius, the nozzle temperature is very high, which can easily burn the hand during replacement. The nozzle may also fall into the equipment, causing damage to moving parts, short circuits in the circuit boards, etc.

[0005] Therefore, it is necessary to provide a nozzle replacement fixture to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a nozzle replacement clamp, which solves the problems of high nozzle temperature, easy burns to hands when replacing nozzles, nozzles falling into the equipment, causing damage to moving parts of the equipment, and short circuits in the circuit board.

[0007] To solve the above-mentioned technical problems, this utility model provides a nozzle replacement fixture, including: a fixture side plate;

[0008] The clamp has a reserved gap, which is located in the middle of one side of the clamp side plate. Clamping blocks are fixedly installed on both sides of the inner wall of the clamp reserved gap, and a clamping nozzle hole is provided on one side of the top of the clamping block.

[0009] An elastic element is disposed on one side of the middle of the reserved gap in the clamp.

[0010] Preferably, the clamp side plate is made of spring plate material, and the clamp has a reserved gap for the deformation of the clamp side plate.

[0011] Preferably, the suction nozzle hole of the clamp is in the shape of a semi-circular frustum, and the opening depth of the suction nozzle hole is two-thirds of the height of the clamping block.

[0012] Preferably, the elastic element is a spring structure.

[0013] Preferably, a connecting frame is fixedly installed on one side of the outer surface of the clamp side plate, a driving component is fixedly installed in the middle of the connecting frame, a guide post is fixedly connected to the end of the output shaft of the driving component, and a blocking block is fixedly connected to one end of the guide post.

[0014] Preferably, the clamp side plate is sleeved on the outer surface of the guide post.

[0015] Preferably, the driving component adopts a hydraulic cylinder structure.

[0016] Compared with related technologies, the nozzle replacement fixture provided by this utility model has the following advantages:

[0017] This utility model provides a nozzle replacement fixture. Through the cooperation of the fixture side plate, clamping block, elastic element, fixture reserved gap and fixture reserved nozzle hole, the operator can conveniently hold the nozzle with the fixture. It can effectively replace the fixture that holds the nozzle with bare hands, and prevent the nozzle from being easily burned when changing the nozzle, the nozzle falling into the equipment, causing the moving parts of the equipment to be jammed and damaged, and the circuit board to be short-circuited. This improves work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a first embodiment of a nozzle replacement fixture provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shown is a schematic of the bakelite nozzle structure.

[0020] Figure 3 for Figure 1 The diagram shows the side plate structure of the fixture.

[0021] Figure 4 This is a schematic diagram of the second embodiment of a nozzle replacement fixture provided by this utility model;

[0022] Figure 5 for Figure 4 The enlarged schematic diagram at point A is shown.

[0023] The numbers in the diagram are: 1. Fixture clearance, 2. Bakelite nozzle, 3. Fixture nozzle hole, 4. Elastic element, 5. Fixture side plate, 6. Clamping block, 7. Connecting frame, 8. Driving element, 9. Guide post, 10. Blocking block. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the structure of a first embodiment of a nozzle replacement fixture provided by this utility model; Figure 2 for Figure 1 The diagram shown is a schematic of the bakelite nozzle structure.

[0027] Figure 3 for Figure 1 The diagram shows the structure of the clamp side plate. A nozzle replacement clamp includes: a clamp side plate 5;

[0028] The clamp has a reserved gap 1, which is located in the middle of one side of the clamp side plate 5. Clamping blocks 6 are fixedly installed on both sides of the inner wall of the clamp reserved gap 1. A clamp reserved suction nozzle hole 3 is provided on one side of the top of the clamping block 6.

[0029] Elastic element 4 is disposed on one side of the middle of the reserved gap 1 of the clamp.

[0030] The clamp side plate 5 is made of spring plate material, and the clamp reserved gap 1 is used for the deformation of the clamp side plate 5.

[0031] The fixture has a pre-drilled suction hole 3 in the shape of a semi-circular frustum, and the depth of the pre-drilled suction hole 3 is two-thirds of the height of the clamping block 6.

[0032] The elastic element 4 adopts a spring structure.

[0033] The clamping clearance 1 is located in the middle of the left side of the clamping side plate 5, and the right side of the clamping clearance 1 does not penetrate the right outer surface of the clamping side plate 5. The clamping side plate 5 adopts a spring plate structure and can be deformed. The clamping side plate 5 can be deformed by pinching the two sides together through the clamping clearance 1.

[0034] The elastic element 4 adopts a spring structure, and its two ends are respectively fixedly connected to the two sides of the inner wall of the pre-reserved gap 1 of the clamp.

[0035] The clamp has a pre-drilled nozzle hole 3 in the shape of a semi-circular frustum. The two clamping blocks 6 are close to each other. The two clamping nozzle holes 3 are concave frustums that fit the cone shape at the bottom of the bakelite nozzle 2. A flow hole is opened in the middle of the bottom of the bakelite nozzle 2. The two clamping blocks 6 are close to each other and use the pre-drilled nozzle hole 3 of the clamp to hold the bakelite nozzle 2. When the two clamping blocks 6 hold the bakelite nozzle 2, the two clamping blocks 6 are not in contact.

[0036] The working principle of the suction nozzle replacement fixture provided by this utility model is as follows:

[0037] During operation, the user first places their index finger and thumb on both sides of the outer surface of the clamp side plate 5 and pinches them together. This causes the two sides of the clamp side plate 5 to deform and move closer together through the clamp's reserved gap 1. At the same time, the elastic element 4 is squeezed, placing the bottom conical tube of the bakelite nozzle 2 between the two clamping blocks 6 and the clamp's reserved nozzle hole 3. The reserved nozzle hole 3 is used to clamp the bakelite nozzle 2. The depth of the reserved nozzle hole 3 is only 2 / 3 of the thickness of the clamping block 6 to prevent the nozzle from slipping. The nozzle can be clamped through the clamp's reserved gap 1 and placed into the die bonder's welding head fixing seat. The fixing screws are tightened, the clamp side plate 5 is loosened, and the elastic element 4 springs open. At the same time, the two sides of the clamp layer plate 5 deform and return to their original shape through the clamp's reserved gap 1. After the equipment is measured, it can work normally, effectively preventing burns to fingers and nozzles from falling off.

[0038] Compared with related technologies, the nozzle replacement fixture provided by this utility model has the following advantages:

[0039] This utility model provides a nozzle replacement fixture. The fixture consists of a side plate 5, a clamping block 6, an elastic element 4, a pre-reserved gap 1, and a pre-reserved nozzle hole 3. The fixture allows the operator to easily hold the nozzle, effectively replacing the traditional method of holding the nozzle with bare hands. This prevents burns, nozzles falling into the equipment, jamming and damaging moving parts, and short circuits on the circuit board during nozzle replacement, thus improving work efficiency.

[0040] Second Embodiment

[0041] Please refer to the following: Figure 4 and Figure 5 Based on the nozzle replacement fixture provided in the first embodiment of this application, the second embodiment of this application proposes another nozzle replacement fixture. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0042] Specifically, the second embodiment of this application provides a different nozzle replacement fixture in that a connecting frame 7 is fixedly installed on one side of the outer surface of the fixture side plate 5, a driving component 8 is fixedly installed in the middle of the connecting frame 7, a guide post 9 is fixedly connected to the end of the output shaft of the driving component 8, and a blocking block 10 is fixedly connected to one end of the guide post 9.

[0043] The clamp side plate 5 is sleeved on the outer surface of the guide post 9.

[0044] The drive component 8 adopts a hydraulic cylinder structure.

[0045] The guide post 9 passes through the interior of the clamp side plate 5, and the clamp side plate 5 is not fixedly connected to the guide post 9.

[0046] The working principle of the suction nozzle replacement fixture provided by this utility model is as follows:

[0047] During operation, the user first holds both sides of the clamp side plate 5. The output shaft of the drive unit 8 is moved by the external power supply, which pulls the guide column 9 and the blocking block 10 to move. The blocking block 10 moves towards the drive unit 8 and pulls one side of the clamp side plate 5 closer to the other side. The clamp side plate 5 deforms, so that the clamping blocks 6 on both sides of the clamp side plate 5 come closer to clamp the bakelite nozzle 2.

[0048] After installation, the output shaft of the drive component 8 moves away from the cylinder body, pushing the blocking block 10 to move. The side plate 5 of the clamp that was squeezed is no longer restricted, the deformation is restored, and the two clamping blocks 6 separate.

[0049] Compared with related technologies, the nozzle replacement fixture provided by this utility model has the following advantages:

[0050] This utility model provides a nozzle replacement clamp. The output shaft of the drive unit 8 is moved by an external power source, which pulls the guide column 9 and the blocking block 10 to move. The blocking block 10 can pull one side of the clamp side plate 5 to the other side of the clamp side plate 5, so that the two clamping blocks 6 come closer to each other to clamp the bakelite nozzle 2. This device has a simple structure and strong practicality. After the operator holds the clamp, he can control the clamping of the bakelite nozzle 2 through the drive unit 8, which improves the safety of clamping and makes it less likely that the bakelite nozzle 2 will fall off due to the operator letting go. This improves the practicality and operational safety of this device.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A nozzle replacement clamp, characterized in that, include: Fixture side plate; The clamp has a reserved gap, which is located in the middle of one side of the clamp side plate. Clamping blocks are fixedly installed on both sides of the inner wall of the clamp reserved gap, and a clamping nozzle hole is provided on one side of the top of the clamping block. An elastic element is disposed on one side of the middle of the reserved gap in the clamp.

2. The nozzle replacement fixture according to claim 1, characterized in that, The clamp side plate is made of spring plate material, and the clamp has a reserved gap for the deformation of the clamp side plate.

3. The nozzle replacement fixture according to claim 1, characterized in that, The fixture has a pre-drilled suction nozzle hole in the shape of a semi-circular frustum, and the depth of the pre-drilled suction nozzle hole is two-thirds of the height of the clamping block.

4. A nozzle replacement fixture according to claim 1, characterized in that, The elastic element adopts a spring structure.

5. A nozzle replacement fixture according to claim 1, characterized in that, A connecting frame is fixedly installed on one side of the outer surface of the clamp side plate, a driving component is fixedly installed in the middle of the connecting frame, a guide post is fixedly connected to the end of the output shaft of the driving component, and a blocking block is fixedly connected to one end of the guide post.

6. A nozzle replacement fixture according to claim 5, characterized in that, The clamp side plate is sleeved on the outer surface of the guide post.

7. A nozzle replacement fixture according to claim 5, characterized in that, The drive component adopts a hydraulic cylinder structure.

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