Material-pushing and material-blocking-preventing device used on die bonder

Abstract

The utility model relates to the field of die bonder devices, in particular to a material pushing and blocking prevention device used on a die bonder, which comprises a bottom plate, a motor is mounted on the bottom plate, the output end of the motor coaxially drives a screw rod, and the screw rod drives a sliding table to slide in a guide rail in a reciprocating manner; a floating mechanism is installed on the sliding table and comprises a photoelectric sensor and a detection piece, the detection piece is connected with materials, and when the situation that the materials are stuck occurs, the detection piece moves, so that the photoelectric sensor is triggered, a material sticking alarm is given out, then the machine is shut down, and the problems of damage to equipment accessories and damage to a product frame caused by hard pushing feeding are solved.

Description

Technical Field

[0001] This utility model relates to the field of die bonding machine devices, and in particular to a pusher and anti-jamming device used in a die bonding machine. Background Technology

[0002] A die bonder, also known as a die attacher, wafer bonding machine, or chip bonding machine, is a machine used to fix crystals and semiconductor packaging. It is a key piece of equipment in the semiconductor back-end packaging process. This equipment uses vision guidance technology to automatically pick up chips from the wafer and bond them to the lead frame.

[0003] During the process of pushing material into the frame of the die bonder, hooks are used to feed the frame to the subsequent functional components. If traditional pushing and feeding equipment is used in this process, if jamming occurs, the forceful pushing will cause the hooks to break or deform or the frame to deform, resulting in material damage to the equipment. Therefore, traditional pushing and feeding equipment is difficult to meet the usage requirements. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a pusher anti-jamming device for use in a die bonder. This device improves the pusher structure to a floating structure, enabling a rapid response when jamming occurs and avoiding problems such as hook breakage or frame deformation caused by rigid pusher. Specifically, it is achieved through the following technical solution.

[0005] This utility model discloses a material pushing and anti-jamming device for use in a die bonder, comprising a base plate, a motor mounted on the base plate, a screw coaxially driven by the output end of the motor, the screw being rotatably mounted on the base plate, the screw being threadedly connected to a threaded through hole in a sliding table, and the sliding table being slidably configured in a guide rail mounted on the base plate.

[0006] A floating mechanism is installed on the sliding table. The floating mechanism includes a photoelectric sensor. The photoelectric sensor is installed on the sliding table. A first end of a detection piece is intermittently arranged in the gap between the transmitter and receiver of the photoelectric sensor. The second end of the detection piece is slidably installed on the side of the sliding table and drivenly connected to the pusher handle. The pusher handle is fixed to the pusher connecting shaft. The pusher connecting shaft is connected to the material through a hook needle component.

[0007] Preferably, the floating mechanism further includes a floating block, the second end of the detection piece is fixed to the floating block, the floating block is disposed in a through groove on the mounting plate, and the mounting plate is fixedly mounted on the sliding stage.

[0008] At least two guide pins are fixed inside the through groove, and the guide pins are slidably disposed in the through hole opened in the floating block.

[0009] The floating block overlaps with the first end of the spring, the second end of the spring is mounted on the mounting plate, the floating block is fixed to the floating follower, the floating follower overlaps with the pusher handle, the pusher handle intermittently overlaps with the fixed follower, and the fixed follower is fixed to the mounting plate.

[0010] Preferably, the second end of the spring is mounted on the mounting plate via an adjustment mechanism. The adjustment mechanism includes a fixing block, which is mounted on the side of the mounting plate. An adjusting screw is threadedly connected to the fixing block in a threaded hole. The first end of the adjusting screw is fixed to the second end of the spring. A fastening nut is threadedly connected to the adjusting screw, and the fastening nut can overlap with the fixing block.

[0011] Preferably, the axis of the guide pin is parallel to the length direction of the through groove, and there are two of them.

[0012] Preferably, the motor and the screw are respectively mounted on the base plate via mounting platforms, the mounting platforms are fixed to the base plate, the motor is mounted on the first end of the mounting platform, and the screw is rotatably mounted on the second end of the mounting platform.

[0013] Preferably, the output end of the motor coaxially drives the screw via a coupling.

[0014] Preferably, the floating follower and the fixed follower are columnar structures.

[0015] Preferably, the axis of the floating follower and the axis of the fixed follower are located in the same horizontal plane.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. When material jamming occurs during the feeding process, the compression spring is displaced, triggering a photoelectric detection signal to detect and determine that material jamming has occurred. The equipment stops immediately, with a rapid response.

[0018] 2. The device has a reasonable and compact overall structure, stable and high-speed triggering, which can greatly avoid damage to equipment parts and product frames caused by material jamming.

[0019] 3. This device can adjust the spring force by adjusting the spring position, thereby adjusting the alarm stop trigger limit and increasing the applicability of the device. Attached Figure Description

[0020] 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 these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the material pushing and anti-jamming device;

[0022] Figure 2 for Figure 1 Disassembly diagram of some components in the middle section;

[0023] Figure 3 for Figure 1 A perspective view of the floating mechanism shown;

[0024] Figure 4 for Figure 3 The front view.

[0025] Explanation of reference numerals in the attached figures:

[0026] 101 - Base plate, 102 - Motor, 103 - Screw, 104 - Sliding table, 105 - Guide rail, 106 - Mounting platform, 107 - Coupling;

[0027] 200 - Floating mechanism, 201 - Photoelectric sensor, 202 - Detection piece, 203 - Floating block, 204 - Through groove, 205 - Mounting plate, 206 - Guide pin, 207 - Spring, 208 - Floating follower, 209 - Fixed follower, 210 - Push handle, 211 - Push connecting shaft;

[0028] 300 - Adjustment mechanism, 301 - Fixing block, 302 - Adjustment screw, 303 - Fastening nut. Detailed Implementation

[0029] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Those skilled in the art will recognize that this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.

[0030] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] An embodiment of this utility model provides a pusher and anti-jamming device for use in a die bonder, see [link to relevant documentation]. Figure 1 , Figure 2 The material pushing and anti-jamming device includes a base plate 101, on which a motor 102 is mounted. The output end of the motor 102 coaxially drives a screw 103. The screw 103 is rotatably mounted on the base plate 101. The screw 103 is threadedly connected to a threaded through hole opened on a sliding table 104. The sliding table 104 is slidably configured in a guide rail 105 mounted on the base plate 101.

[0032] A floating mechanism 200 is fixedly installed on the side of the sliding table 104. The floating mechanism 200 includes a photoelectric sensor 201, a detection plate 202, a pusher handle 210, and a pusher connecting shaft 211. The photoelectric sensor 201 is fixedly installed on the sliding table 104. The first end of the detection plate 202 can be intermittently positioned in the gap between the transmitter and receiver of the photoelectric sensor 201 and can block the beam of the transmitter of the photoelectric sensor 201. The second end of the detection plate 202 is slidably installed on the side of the sliding table 104 and is drivenly connected to the pusher handle 210. The pusher handle 210 is fixedly connected to the middle of the pusher connecting shaft 211. The pusher connecting shaft 211 is connected to the material through a hook component.

[0033] The motor 102 and the screw 103 are respectively mounted on the base plate 101 via the mounting platform 106. The mounting platform 106 is fixedly connected to the base plate 101. The motor 102 is fixedly mounted on the first end of the mounting platform 106, and the screw 103 is rotatably mounted on the second end of the mounting platform 106.

[0034] The output end of the motor 102 drives the screw 103 coaxially through the coupling 107. That is, the output end of the motor 102 is coaxially fixed with the input end of the coupling 107, and the output end of the coupling 107 is coaxially fixed with the first end of the screw 103.

[0035] The aforementioned hook component is a common component in die bonding equipment and is a conventional technical means known to those skilled in the art, so it will not be elaborated further here.

[0036] In the above embodiments, when the motor 102 drives the sliding table 104 to reciprocate within the guide rail 105 via the screw 103, in accordance with the material feeding speed, and when the material connected to the pusher connecting shaft 211 does not jam, the first end of the detection piece 202 is positioned between the transmitter and receiver of the photoelectric sensor 201, thereby blocking the beam of the photoelectric sensor 201 transmitter. When the material connected to the pusher connecting shaft 211 jams, the jamming of the material reacts to the pusher connecting shaft 211 and the pusher handle 210, and through the driving relationship between the pusher handle 210 and the detection piece 202, the first end of the detection piece 202 is moved out from between the transmitter and receiver of the photoelectric sensor 201, thereby triggering an alarm, controlling the machine to stop, and avoiding problems such as hook breakage or frame deformation caused by further pushing of material.

[0037] For further explanation of this utility model, see [link to relevant documentation]. Figure 3 , 4 The floating mechanism 200 also includes a floating block 203, a through groove 204, a mounting plate 205, a guide pin 206, a spring 207, a floating follower 208, and a fixed follower 209. The second end of the detection plate 202 is fixedly connected to the floating block 203. The floating block 203 is disposed in the through groove 204 opened on the mounting plate 205 and can reciprocate along its length. The mounting plate 205 is fixedly installed on the side of the sliding table 104.

[0038] At least two guide pins 206 parallel to its length direction are fixedly installed in the through groove 204. The guide pins 206 are configured in the through holes opened in the floating block 203, thereby guiding the floating block 203 and ensuring that the floating block 203 can only move laterally.

[0039] One side of the floating block 203 overlaps with the first end of the spring 207, the second end of the spring 207 is mounted on the side of the mounting plate 205, the floating block 203 is fixedly connected to the floating follower 208, the outer surface of the floating follower 208 overlaps with the side of the push handle 210, the other side of the push handle 210 can intermittently overlap with the outer surface of the fixed follower 209, and the fixed follower 209 is fixedly connected to the mounting plate 205.

[0040] The floating follower 208 and the fixed follower 209 are columnar structures, and the axis of the floating follower 208 and the axis of the fixed follower 209 are located in the same horizontal plane.

[0041] With the structure described above in this embodiment, when the material connected to the pusher connecting shaft 211 gets stuck, the jamming of the material reacts to the pusher connecting shaft 211 and the pusher handle 210. Through the overlapping relationship between the pusher handle 210 and the floating follower 208, the detection plate 202 and the floating block 203 are further pushed to slide to the side and compress the spring 207. When the detection plate 202 moves to the point where it no longer completely blocks the beam of the photoelectric sensor 201 transmitter, an alarm is triggered. When the material connected to the pusher connecting shaft 211 does not get stuck, under the elastic force of the spring 207, the floating follower 208 and the fixed follower 209 will be pushed to clamp the pusher handle 210. At this time, the detection plate 202 is just positioned between the photoelectric sensor 201 transmitter and receiver.

[0042] The above structure controls the position of the detection plate 202 and the floating block 203 through the elastic force of the spring 207. It can trigger an alarm in a very short time when material jamming occurs, thereby stopping the machine. The structure is simple and the response is sensitive, with a low probability of misjudgment, thus effectively solving the problem of hook breakage or frame deformation caused by material jamming.

[0043] As another embodiment of this utility model, see Figure 3 , Figure 4 Based on the above embodiment, the second end of the spring 207 is mounted on the side of the mounting plate 205 through the adjustment mechanism 300. The adjustment mechanism 300 includes a fixing block 301, an adjusting screw 302, and a fastening nut 303. The fixing block 301 is fixedly mounted on the side of the mounting plate 205. A threaded hole is provided on the fixing block 301, and the adjusting screw 302 is threadedly connected to it in the threaded hole. The first end of the adjusting screw 302 is fixedly connected to the second end of the spring 207. The adjusting screw 302 is threadedly connected to the fastening nut 303, and the fastening nut 303 can overlap with the side of the fixing block 301.

[0044] This embodiment, through the above structure, allows technicians to adjust the position of the spring 207 according to actual usage needs. After adjusting the position of the spring 207 by turning the adjusting screw 302, tightening the fastening nut 303 completes the fixation of the position of the adjusting screw 302. By adjusting the position of the spring 207, the interaction force between the floating follower 208 and the pusher handle 210 can be adjusted. This allows the displacement of the detection piece 202 to be controlled within a reasonable range when motion resistance occurs on the pusher connecting shaft 211 and the pusher handle 210, thereby adjusting the trigger limit for alarm shutdown and making the above structure more adaptable.

[0045] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A pusher and anti-jamming device for use in a die bonder, characterized in that: Includes a base plate (101), on which a motor (102) is mounted. The output end of the motor (102) coaxially drives a screw (103). The screw (103) is rotatably mounted on the base plate (101). The screw (103) is threadedly connected to a threaded through hole opened on a sliding table (104). The sliding table (104) is slidably arranged in a guide rail (105) mounted on the base plate (101). A floating mechanism (200) is installed on the sliding table (104). The floating mechanism (200) includes a photoelectric sensor (201). The photoelectric sensor (201) is installed on the sliding table (104). The first end of a detection piece (202) is intermittently arranged in the gap between the transmitter and receiver of the photoelectric sensor (201). The second end of the detection piece (202) is slidably installed on the side of the sliding table (104) and drivenly connected to the push handle (210). The push handle (210) is fixed to the push connecting shaft (211). The push connecting shaft (211) is connected to the material through a hook component.

2. The anti-jamming pusher device for use in a die bonder according to claim 1, characterized in that: The floating mechanism (200) further includes a floating block (203), the second end of the detection piece (202) is fixed to the floating block (203), the floating block (203) is disposed in a through groove (204) on the mounting plate (205), and the mounting plate (205) is fixedly mounted on the sliding table (104); At least two guide pins (206) are fixed in the through groove (204), and the guide pins (206) are slidably disposed in the through hole opened in the floating block (203); The floating block (203) overlaps with the first end of the spring (207), the second end of the spring (207) is mounted on the mounting plate (205), the floating block (203) is fixed with the floating follower (208), the floating follower (208) overlaps with the push handle (210), the push handle (210) intermittently overlaps with the fixed follower (209), and the fixed follower (209) is fixed with the mounting plate (205).

3. The anti-jamming pusher device for use in a die bonder according to claim 2, characterized in that: The second end of the spring (207) is mounted on the mounting plate (205) via an adjustment mechanism (300). The adjustment mechanism (300) includes a fixing block (301) mounted on the side of the mounting plate (205). An adjustment screw (302) is threadedly connected to the threaded hole in the fixing block (301). The first end of the adjustment screw (302) is fixed to the second end of the spring (207). A fastening nut (303) is threadedly connected to the adjustment screw (302). The fastening nut (303) can overlap with the fixing block (301).

4. The anti-jamming pusher device for use in a die bonder according to claim 2, characterized in that: The axis of the guide pin (206) is parallel to the length direction of the through groove (204), and there are two of them.

5. The anti-jamming pusher device for use in a die bonder according to claim 1, characterized in that: The motor (102) and the screw (103) are respectively mounted on the base plate (101) via the mounting platform (106). The mounting platform (106) is fixed to the base plate (101). The motor (102) is mounted on the first end of the mounting platform (106), and the screw (103) is rotatably mounted on the second end of the mounting platform (106).

6. The anti-jamming pusher device for use in a die bonder according to claim 1, characterized in that: The output end of the motor (102) drives the screw (103) coaxially through the coupling (107).

7. The anti-jamming pusher device for use in a die bonder according to claim 2, characterized in that: The floating follower (208) and the fixed follower (209) are columnar structures.

8. The anti-jamming pusher device for use in a die bonder according to claim 7, characterized in that: The axis of the floating follower (208) and the axis of the fixed follower (209) are located in the same horizontal plane.

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