Pin mechanism and die bonder
By introducing a detachable limiting component design into the ejector mechanism, the problem of inconvenient ejector replacement is solved, achieving the effects of simplified operation and reduced ejector damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHEN ZHEN TALUER TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-02
AI Technical Summary
The existing ejector mechanism is inconvenient to replace the ejector pin, requiring the removal of the adjusting screw and readjustment of the pressure, which makes the operation complicated and the ejector pin easy to be damaged.
The design adopts a detachable connection between the limiting component and the cylinder body, which keeps the limiting component in a fixed position. The ejector pin can be replaced by removing the limiting component, thus avoiding changes in the position of the adjusting component and damage to the ejector pin.
It simplifies the ejector pin replacement process, maintains the preload of the elastic element, and avoids the complex operations of ejector pin damage and adjusting the position of the adjusting element.
Smart Images
Figure CN224319861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semiconductor equipment technology, and in particular to a pin mechanism and a die bonding device. Background Technology
[0002] During the die bonding process, the die bonding equipment typically uses a ejector pin mechanism to eject the chip from the blue film, and then the die bonding arm or the nozzle on the turret picks it up and transfers it to the die bonding position for die bonding.
[0003] The existing ejector mechanism has the problem that replacing the ejector pin is inconvenient. Utility Model Content
[0004] The main purpose of this invention is to propose a ejector mechanism and a die bonding device, which aims to solve the problem that the existing ejector mechanism is inconvenient when replacing ejector pins.
[0005] To achieve the above objectives, the ejector mechanism proposed in this utility model includes:
[0006] The cylindrical body is equipped with an installation cavity;
[0007] The device includes a ejector pin, an elastic element, an adjusting element, and a limiting element. The ejector pin, the elastic element, and the adjusting element are installed in the mounting cavity. The limiting element has a fixed position relative to the cylinder body. The limiting element is fixed to the cylinder body by a detachable structure so that the limiting element is in a fixed position. The ejector pin has a first end that can penetrate the limiting element and is located on the outside of the cylinder body. The limiting element is used to restrict part of the structure of the ejector pin within the mounting cavity.
[0008] The elastic element is disposed between the adjusting element and the limiting element. One end of the elastic element is connected to the adjusting element, and the other end of the elastic element abuts against the ejector pin. The adjusting element can apply pre-pressure to the elastic element so that the elastic element can push against the ejector pin, causing the ejector pin to tend to move toward the limiting element.
[0009] In one embodiment, the limiting member is detachably connected to the cylinder via a threaded structure.
[0010] In one embodiment, the mounting cavity is provided with a first threaded section, the limiting member is threadedly connected to the first threaded section, the limiting member is provided with an abutting end, and the limiting member is connected to the first threaded section so that the abutting end abuts against the cylinder body. When the abutting end abuts against the cylinder body, the limiting member is in a fixed position.
[0011] The mounting cavity is further provided with a guide section, and the ejector pin is slidably disposed on the guide section. The diameter of the guide section is smaller than the diameter of the first threaded section.
[0012] In one embodiment, a transmission member is fixedly provided on the outside of the ejector pin, and the elastic member pushes against the ejector pin through the transmission member.
[0013] In one embodiment, the transmission member is provided with a mounting hole for mounting a ejector pin, and the transmission member is interference-fitted or bonded to the ejector pin.
[0014] In one embodiment, the adjusting member is movable within the mounting cavity to adjust the distance between the adjusting member and the limiting member, thereby adjusting the preload of the elastic member.
[0015] In one embodiment, the mounting cavity is provided with a second threaded section, and the adjusting member is threadedly connected to the second threaded section.
[0016] In one embodiment, the adjusting member is provided with a clearance hole;
[0017] The ejector pin has a second end, which is positioned opposite to the first end, and the clearance hole is used to avoid the second end.
[0018] In one embodiment, the elastic element is configured as a spring.
[0019] This utility model also proposes a die bonding device, including the ejector pin mechanism as described above.
[0020] The technical solution of this utility model is to use the limiting member to be fixed in a fixed position relative to the cylinder. The limiting member is fixed to the cylinder through a detachable structure so that the limiting member is in a fixed position. When the ejector pin needs to be replaced, only the limiting member needs to be removed, and the adjusting member does not need to be removed, so that the position of the adjusting member does not change. This avoids the problem of the inconvenience of replacing the ejector pin due to the need to readjust the pre-pressure of the elastic member after replacing the ejector pin.
[0021] It should also be noted that replacing the ejector pin by disassembling the limiting component can also avoid damage to the ejector pin. It should be noted that when replacing the ejector pin by disassembling the adjusting component in the traditional way, the ejector pin needs to pass through the cylinder. When the ejector pin passes through the cylinder, there is a possibility that the first end of the ejector pin will collide with the cylinder, resulting in damage to the first end of the ejector pin. However, in this application, during assembly, the first end of the ejector pin can be passed through the limiting component first, and then the limiting component is connected to the cylinder, which can reduce the possibility of damage to the first end. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0023] Figure 1 A schematic diagram of an embodiment of the ejector mechanism provided by this utility model;
[0024] Figure 2 for Figure 1 Internal diagram of the ejector mechanism;
[0025] Figure 3 for Figure 1 An exploded view of the ejector mechanism.
[0026] Explanation of icon numbers:
[0027] 100. Cylinder body; 110. Mounting cavity; 111. First threaded section; 112. Guide section; 113. Second threaded section;
[0028] 200, Ejector pin; 210, First end; 220, Second end;
[0029] 300. Elastic components;
[0030] 400. Adjusting component; 410. Clearance hole;
[0031] 500. Limiting component; 510. Abutment end;
[0032] 600. Transmission components.
[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0037] During the die bonding process, the die bonding equipment typically uses a ejector pin mechanism to eject the chip from the blue film, and then the die bonding arm or the nozzle on the turret picks it up and transfers it to the die bonding position for die bonding.
[0038] The existing ejector mechanism has the problem of inconvenience in replacing ejector pins. It should be noted that the existing ejector mechanism has an adjusting screw for ejector pin pressure. When replacing ejector pins, the adjusting screw must be removed first, then the worn old ejector pin is taken out, and then a new ejector pin is installed. Next, the adjusting screw is installed. After the adjusting screw is installed, its position needs to be adjusted again so that the pressure of the new ejector pin is the same as that of the old ejector pin. Understandably, adjusting the position of the adjusting screw again is inconvenient, thus causing the problem of inconvenience in replacing ejector pins in the ejector mechanism.
[0039] This utility model proposes an ejector pin mechanism.
[0040] Please see Figure 1 , Figure 2 , Figure 3 In one embodiment of this utility model, the ejector pin mechanism includes:
[0041] The cylindrical body 100 is provided with an installation cavity 110. It should be noted that both ends of the cylindrical body 100 of this application are provided with openings, and the interior of the cylindrical body 100 is provided with an installation cavity 110.
[0042] The device comprises a ejector pin 200, an elastic element 300, an adjusting element 400, and a limiting element 500. The ejector pin 200, the elastic element 300, and the adjusting element 400 are installed in the mounting cavity 110. The limiting element 500 has a fixed position relative to the cylinder 100. The limiting element 500 is fixed to the cylinder 100 through a detachable structure so that the limiting element 500 is in a fixed position. It should be noted that in this embodiment, the detachable structure can be a threaded structure or a snap-fit structure. It can also be understood that the limiting element 500 is connected to the cylinder 100 through a detachable structure so that the limiting element 500 is in a fixed position. That is to say, after multiple disassemblies and reassemblies, the limiting element 500 is always in a fixed position.
[0043] Furthermore, the ejector pin 200 is provided with a first end 210. It should be noted that the first end 210 of the ejector pin 200 is the tip of the ejector pin 200. The first end 210 can penetrate the limiting member 500 and is located on the outside of the cylinder 100. The limiting member 500 is used to restrict part of the structure of the ejector pin 200 within the mounting cavity 110. It can be understood that the ejector pin 200 can slide within the mounting cavity 110, and the limiting member 500 is provided with a through hole. The ejector pin 200 can penetrate the limiting member 500 through the through hole and is located on the outside of the cylinder 100.
[0044] Furthermore, the elastic element 300 is disposed between the adjusting element 400 and the limiting element 500. One end of the elastic element 300 is connected to the adjusting element 400, wherein the elastic element 300 can abut against the adjusting element 400 or be fixed on the adjusting element 400. The other end of the elastic element 300 abuts against the ejector pin 200. The adjusting element 400 can apply a pre-pressure to the elastic element 300 so that the elastic element 300 can push against the ejector pin 200, causing the ejector pin 200 to tend to move toward the limiting element 500. It can be understood that the adjusting element 400 can subject the elastic element 300 to a pre-pressure, causing the elastic element 300 to be in a compressed state. At the same time, it should be noted that under the action of the limiting element 500, the limiting element 500 can restrict part of the structure of the ejector pin 200 within the mounting cavity 110, preventing the ejector pin 200 from detaching from the cylinder 100.
[0045] It should be noted that when the ejector pin 200 needs to be replaced, only the limiting member 500 needs to be removed from the cylinder 100. Then, the ejector pin 200 can be removed from the mounting cavity 110. The adjusting member 400 does not need to be disassembled during the replacement of the ejector pin 200, ensuring the position of the adjusting member 400 is maintained during the replacement process. After the ejector pin 200 is replaced, it only needs to be inserted into the mounting cavity 110, and then the limiting member 500 can be connected to the cylinder 100 via a detachable structure. Simultaneously, the limiting member 500 is installed in a fixed position, and this fixed position remains unchanged. This ensures that the pre-pressure of the elastic member 300 remains constant or changes minimally after the ejector pin 200 is replaced, thus avoiding the need to adjust the pre-pressure of the elastic member 300 via the adjusting member 400 after replacing the ejector pin 200, thereby solving the technical problems existing in the prior art.
[0046] It should also be noted that replacing the ejector pin 200 by disassembling the limiting component 500 can also prevent damage to the ejector pin 200. It should be noted that when replacing the ejector pin 200 by disassembling the adjusting component 400 in the traditional way, the ejector pin 200 needs to pass through the cylinder 100. When the ejector pin 200 passes through the cylinder 100, there is a possibility that the first end 210 of the ejector pin 200 may collide with the cylinder 100, resulting in damage to the first end 210 of the ejector pin 200. However, in this application, during assembly, the first end of the ejector pin 200 can be passed through the limiting component 500 first, and then the limiting component 500 can be connected to the cylinder 100. This can reduce the possibility of damage to the first end 200.
[0047] The technical solution of this utility model adopts a fixed position for the limiting member 500 relative to the cylinder 100. The limiting member 500 is fixed to the cylinder 100 by a detachable structure so that the limiting member 500 is in a fixed position. When the ejector pin 200 needs to be replaced, only the limiting member 500 needs to be removed, and the adjusting member 400 does not need to be removed, so that the position of the adjusting member 400 does not change. This avoids the problem of the inconvenience of replacing the ejector pin 200 caused by the need to readjust the pre-pressure of the elastic member 300 after replacing the ejector pin 200.
[0048] In one embodiment, reference Figure 2 The limiting member 500 is detachably connected to the cylinder 100 via a threaded structure. It is understood that both the limiting member 500 and the cylinder 100 are threaded, and the connection between the limiting member 500 and the cylinder 100 can be achieved by turning a threaded knob. However, this design is not limited to this. In some embodiments, one of the limiting member 500 and the cylinder 100 has a snap-fit, and the other has a latch. The limiting member 500 and the cylinder 100 are fixed by engaging the snap-fit and the latch.
[0049] In one embodiment, reference Figure 2The mounting cavity 110 is provided with a first threaded section 111, and the limiting member 500 is threadedly connected to the first threaded section 111. The limiting member 500 is provided with an abutting end 510, which is connected to the first threaded section 111 so that the abutting end 510 abuts against the cylinder 100. It should be noted that when the abutting end 510 abuts against the cylinder 100, the limiting member 500 is in a fixed position. It should also be noted that when the mounting cavity 110 is provided with the first threaded section 111, the cylinder 100 covers the limiting member 500. However, this design is not limited to this. In some embodiments, the first threaded section 111 can be provided on the outer side of the cylinder 100, in which case the limiting member 500 covers part of the structure of the cylinder 100.
[0050] The mounting cavity 110 is also provided with a guide section 112, and the ejector pin 200 is slidably disposed on the guide section 112. The diameter of the guide section 112 is smaller than the diameter of the first threaded section 111. It can be understood that when the limiting member 500 is disassembled, the ejector pin 200 can be taken out from the mounting cavity 110 through the first threaded section 111, which is convenient for disassembly.
[0051] In one embodiment, reference Figure 2 The ejector pin 200 is externally fixed with a transmission member 600. The elastic member 300 pushes against the ejector pin 200 through the transmission member 600. It should be noted that in some embodiments, the transmission member 600 can be a columnar structure integrally formed with the ejector pin 200, wherein the transmission member 600 can slide within the mounting cavity 110. However, this design is not limited to this. In one embodiment, the transmission member 600 is provided with a mounting hole for mounting the ejector pin 200. The transmission member 600 and the ejector pin 200 are interference-fitted, so that the ejector pin 200 and the transmission member 600 can be manufactured separately during production, and the utilization rate of the transmission member 600 can be improved. That is, when replacing the ejector pin 200, only the ejector pin 200 can be replaced without replacing the transmission member 600. However, this design is not limited to this. In some embodiments, the transmission member 600 and the ejector pin 200 can also be fixed together by adhesive bonding.
[0052] In one embodiment, reference Figure 2 The adjusting member 400 can move within the mounting cavity 110 to adjust the distance between the adjusting member 400 and the limiting member 500, thereby adjusting the preload of the elastic member 300. It can be understood that the preload of the elastic member 300 can be adjusted by adjusting the distance between the adjusting member 400 and the limiting member 500. Furthermore, when the distance between the adjusting member 400 and the limiting member 500 decreases, the preload of the elastic member 300 increases; when the distance between the adjusting member 400 and the limiting member 500 increases, the preload of the elastic member 300 decreases.
[0053] In one embodiment, reference Figure 2 The mounting cavity 110 is provided with a second threaded section 113, and the adjusting member 400 is threadedly connected to the second threaded section 113. The threaded structure enables the adjusting member 400 to reciprocate within the mounting cavity 110. When the adjusting member 400 reciprocates, it can adjust the preload of the elastic member 300.
[0054] In one embodiment, reference Figure 2 The adjusting member 400 is provided with a clearance hole 410; furthermore, the ejector pin 200 is provided with a second end 220, which is disposed opposite to the first end 210. The clearance hole 410 is used to avoid the second end 220. It should be noted that when picking up material, the ejector pin 200 will move toward the adjusting member 400. At this time, the elastic member 300 will be further compressed. In order to ensure that the ejector pin 200 has a longer moving stroke at this time, the adjusting member 400 is provided with a clearance hole 410 to avoid the ejector pin 200 from colliding with the adjusting member 400 when moving.
[0055] In one embodiment, reference Figure 2 The elastic element 300 is configured as a spring. It should be noted that one end of the spring abuts against the adjusting element 400 and the other end abuts against the transmission element 600. The spring is sleeved on the outside of the ejector pin 200.
[0056] This utility model also proposes a die bonding device, which includes a ejector pin 200 structure. The specific structure of the ejector pin 200 structure is as described in the above embodiments. Since this die bonding device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0057] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.
Claims
1. A pin mechanism, characterized in that, include: The cylindrical body is equipped with an installation cavity; The device includes a ejector pin, an elastic element, an adjusting element, and a limiting element. The ejector pin, the elastic element, and the adjusting element are installed in the mounting cavity. The limiting element has a fixed position relative to the cylinder body. The limiting element is fixed to the cylinder body by a detachable structure so that the limiting element is in a fixed position. The ejector pin has a first end that can penetrate the limiting element and is located on the outside of the cylinder body. The limiting element is used to restrict part of the structure of the ejector pin within the mounting cavity. The elastic element is disposed between the adjusting element and the limiting element. One end of the elastic element is connected to the adjusting element, and the other end of the elastic element abuts against the ejector pin. The adjusting element can apply pre-pressure to the elastic element so that the elastic element can push against the ejector pin, causing the ejector pin to tend to move toward the limiting element.
2. The ejector mechanism as described in claim 1, characterized in that, The limiting component is detachably connected to the cylinder via a threaded structure.
3. The ejector mechanism as described in claim 2, characterized in that, The mounting cavity is provided with a first threaded section, and the limiting member is threadedly connected to the first threaded section. The limiting member is provided with an abutting end, and the limiting member is connected to the first threaded section so that the abutting end abuts against the cylinder. When the abutting end abuts against the cylinder, the limiting member is in a fixed position. The mounting cavity is further provided with a guide section, and the ejector pin is slidably disposed on the guide section. The diameter of the guide section is smaller than the diameter of the first threaded section.
4. The ejector mechanism as described in claim 1, characterized in that, A transmission component is fixed to the outside of the ejector pin, and the elastic element pushes against the ejector pin through the transmission component.
5. The ejector mechanism as described in claim 4, characterized in that, The transmission component is provided with a mounting hole for mounting the ejector pin, and the transmission component is interference-fitted or bonded to the ejector pin.
6. The ejector mechanism as described in claim 1, characterized in that, The adjusting member can move within the mounting cavity to adjust the distance between the adjusting member and the limiting member, thereby adjusting the preload of the elastic member.
7. The ejector mechanism as described in claim 6, characterized in that, The mounting cavity is provided with a second threaded section, and the adjusting member is threadedly connected to the second threaded section.
8. The ejector mechanism as described in claim 6, characterized in that, The adjusting component is provided with clearance holes; The ejector pin has a second end, which is positioned opposite to the first end, and the clearance hole is used to avoid the second end.
9. The ejector mechanism as described in claim 1, characterized in that, The elastic element is configured as a spring.
10. A die bonding apparatus, characterized in that, Includes the ejector mechanism as described in any one of claims 1 to 9.