Dispensing device of die bonder

Abstract

The utility model relates to the technical field of die bonders, discloses a die bonder glue dispensing device, and solves the problems that the conventional die bonder glue dispensing device can only perform plane glue dispensing and is not high in adaptability to products with different glue dispensing requirements. The device comprises a supporting arm, a driving motor, a swing arm and a hydraulic cylinder are mounted on the supporting arm, the hydraulic cylinder is connected with a mounting seat, and a deflection mechanism is arranged on the mounting seat. The deflection mechanism is composed of a stepping motor, a main driving wheel, a transmission belt, a movable arm, a driven wheel, a limiting base, a servo motor, an angle adjusting disc, a clamping plate and a dispensing pipe. The driving motor and the hydraulic cylinder achieve position adjustment, the stepping motor drives the movable arm to deflect, the servo motor controls the angle adjusting disc to adjust the angle, and the clamping plate fixes the dispensing pipe. All the components work cooperatively, multi-axis movement and side face glue dispensing are achieved, and the glue dispensing quality and adaptability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of die bonder, concretely to a die bonder glue dispensing device. BACKGROUND

[0002] Flat dispensing is the most common way of die bonder glue dispensing. In this way, glue is precisely applied on the flat surface of the chip or substrate to achieve the fixation and connection between the chip and the substrate. However, in some special application scenarios, side dispensing may be required. When the chip or component has an irregular shape, such as a wedge, trapezoid or curved surface, flat dispensing may not completely cover the contact area between the chip and the substrate. At this time, side dispensing can make up for the deficiency of flat dispensing, ensuring the all-round connection between the chip and the substrate. For some electronic products that need to be waterproof or sealed, side dispensing can form a sealing layer on the side of the chip and the substrate, preventing water, dust or other impurities from entering, and improving the reliability and service life of the product. In some high-vibration and high-impact environments, side dispensing can better resist external forces and prevent the chip from loosening or falling off.

[0003] The existing Chinese patent with publication number CN221086160U discloses a die bonder glue dispensing device, which comprises a machine body, a glue dispensing pipe, a fixing mechanism and a moving mechanism. The fixing mechanism is composed of two frames, a pull pin, a spring and a clamping plate. The pull pin is T-shaped and connected with the frame and the clamping plate. The spring is sleeved on the pull pin. The moving mechanism includes a first cover body, a second motor, a first lead screw and a long plate. The first cover body is connected with the machine body. The second motor drives the first lead screw to rotate. The long plate is slidingly connected with the first cover body at the bottom and fixed with the second cover body at one side, and the second cover body is embedded with a nut that is threadedly connected with the first lead screw. The second cover body is connected with the glue dispensing pipe and other components through a moving plate. The device can only realize flat dispensing and cannot realize multi-axis movement of the glue dispensing pipe and side dispensing, and has low adaptability to products with different dispensing requirements.

[0004] In view of the above-mentioned related technology, the present application provides a die bonder glue dispensing device that can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a die bonder glue dispensing device, which is used to solve the problem of flat dispensing of existing die bonder glue dispensing devices and low adaptability to products with different dispensing requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a die bonder glue dispensing device, comprising a support arm, a drive motor fixedly installed on the side wall of the support arm, a swing arm fixedly connected with the output shaft of the drive motor, a hydraulic cylinder fixedly installed at the other end of the swing arm, and a mounting seat fixedly connected with the output rod of the hydraulic cylinder, wherein a deflection mechanism for side dispensing is fixedly arranged on the mounting seat.

[0007] The deflection mechanism comprises a stepping motor, the output shaft of the stepping motor is fixedly connected with a main drive wheel, one end of the main drive wheel is sleeved with a transmission belt, the main drive wheel is in meshing connection with a movable arm, the end face of the other side of the movable arm is in meshing connection with a driven wheel, the main drive wheel and the driven wheel are connected through the transmission belt, and the two ends of the movable arm are fixedly provided with limiting seats.

[0008] Preferably, the movable arm is an arc panel provided with a rack belt on the upper and lower end faces.

[0009] Preferably, guide grooves are formed in the outer arms on the two sides of the long side of the movable arm.

[0010] Preferably, a cylinder for guiding the displacement of the movable arm is fixedly arranged in the middle of the inner wall of the two sides of the mounting seat.

[0011] Preferably, a servo motor is fixedly arranged on the outer wall of the side close to the stepping motor of the two limiting seats, the output shaft of the servo motor penetrates through the limiting seat and is fixedly connected with an angle adjusting disc, and the angle adjusting disc is rotationally connected to the outer wall of the other side of the limiting seat.

[0012] Preferably, a strip-shaped groove is formed in the angle adjusting disc, two clamping plates are slidably connected in the strip-shaped groove, one end of the two clamping plates is connected through a spring, and the other end is connected through a key pin.

[0013] Preferably, a dispensing tube is clamped and fixed on the two clamping plates, and an elastic pad with a pattern is arranged at the abutting position between the inner wall of the two clamping plates and the dispensing tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The dispensing device of the die bonder disclosed by the utility model realizes position switching by the driving motor on the supporting arm driving the swing arm to move, and the height of the mounting seat is accurately controlled by the hydraulic cylinder. In the deflection mechanism, the stepping motor drives the main drive wheel, the driven wheel is driven by the transmission belt, the movable arm is accurately deflected under the guidance of the cylinder and the guide groove. The limiting seat prevents the movable arm from excessive movement, the servo motor controls the angle adjusting disc to adjust the angle, the clamping plate fixes the dispensing tube to ensure stability, and the adaptability and accuracy of the dispensing of the die bonder are improved.

[0016] 2. The dispensing device of the die bonder disclosed by the utility model improves the transmission efficiency through the design of the arc panel and the rack belt of the movable arm, guarantees the stability of the dispensing tube through the connection mode of the clamping plate and the elastic pad, and meets the needs of different shapes of chips and side dispensing through the collaborative work of various components, so that the adaptability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2Structure schematic view of one side of the deflection mechanism of the utility model;

[0019] Figure 3 Structure schematic view of the other side of the deflection mechanism of the utility model;

[0020] Figure 4 Structure schematic view of the position of the guide groove and the strip-shaped groove of the utility model;

[0021] Figure 5 Structure schematic view of the bottom view of the utility model.

[0022] In the figure: 1, support arm; 11, driving motor; 12, swing arm; 13, hydraulic cylinder; 14, mounting seat; 2, deflection mechanism; 21, stepping motor; 22, main drive wheel; 23, transmission belt; 24, movable arm; 240, guide groove; 25, limit seat; 26, driven wheel; 3, servo motor; 31, angle adjusting disc; 310, strip-shaped groove; 32, clamping plate; 33, dispensing pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] In order to further understand the contents of the utility model, the utility model will be described in detail in combination with the drawings.

[0025] In combination with Figures 1-5 A dispensing device of a die bonder, comprising a support arm 1, a driving motor 11 is fixedly installed on the side wall of the support arm 1, a swing arm 12 is fixedly connected to the output shaft of the driving motor 11, a hydraulic cylinder 13 is fixedly installed at the other end of the swing arm 12, a mounting seat 14 is fixedly connected to the output rod of the hydraulic cylinder 13, and a deflection mechanism 2 for side dispensing is fixedly arranged on the mounting seat 14. The support arm 1 provides a stable support basis for the whole device, the driving motor 11 can accurately control the movement of the swing arm 12, realizes the position switching of glue taking and dispensing. The swing arm 12 can change the working range of the device under the action of the driving motor 11, the hydraulic cylinder 13 provides stable power output for the mounting seat 14, ensures the accuracy of the dispensing position height, the mounting seat 14 is used for mounting and fixing the deflection mechanism 2, and the stability of the dispensing process is ensured.

[0026] The deflection mechanism 2 comprises a stepping motor 21, the output shaft of the stepping motor 21 is fixedly connected with a main drive wheel 22, one end of the main drive wheel 22 is sleeved with a transmission belt 23, the main drive wheel 22 is connected with an active arm 24 in a meshing mode, the other end surface of the active arm 24 is connected with a driven wheel 26 in a meshing mode, the main drive wheel 22 is connected with the driven wheel 26 through the transmission belt 23, the two ends of the active arm 24 are fixedly provided with limit seats 25, the stepping motor 21 can accurately control the rotation of the main drive wheel 22, so as to drive the active arm 24 to move, the main drive wheel 22 is connected with the driven wheel 26 through the transmission belt 23, the active arm 24 can drive the glue dispensing pipe to realize accurate deflection position adjustment under the action of the main drive wheel 22 and the driven wheel 26, the limit seats 25 can limit the movement range of the active arm 24, so as to prevent damage caused by excessive movement; the active arm 24 is an arc panel provided with a rack on the upper and lower two side end surfaces, the arc panel structure of the active arm 24 can realize side swinging glue dispensing during the deflection of the auxiliary glue dispensing pipe. The rack on the upper and lower two side end surfaces can better mesh with the main drive wheel 22 and the driven wheel 26, so as to improve the transmission efficiency; the outer arms on the long sides of the active arm 24 are provided with guide grooves 240, the guide grooves 240 can guide the movement of the active arm 24, so as to ensure the accuracy and stability of the movement.

[0027] The middle parts of the inner walls on the two sides of the mounting seat 14 are fixedly provided with cylinders for guiding the displacement of the active arm 24, so as to better guide the displacement of the active arm 24 and reduce the friction and resistance in the movement process.

[0028] The outer walls on the sides close to the stepping motor 21 of the two limit seats 25 are fixedly provided with servo motors 3, the output shafts of the servo motors 3 penetrate through the limit seats 25 and are fixedly connected with angle adjusting discs 31, the angle adjusting discs 31 are rotatably connected to the outer walls on the other sides of the limit seats 25, the servo motors 3 can accurately control the rotation of the angle adjusting discs 31, so as to realize angle adjustment. The angle adjusting disc 31 can adjust the angle according to different glue dispensing requirements, so as to improve the accuracy and flexibility of glue dispensing; the angle adjusting disc 31 is provided with a strip-shaped groove 310, two clamping plates 32 are slidably connected in the strip-shaped groove 310, one end of each clamping plate 32 is connected through a spring and the other end is connected through a key pin. The two clamping plates 32 are clamped and fixed with glue dispensing pipes 33, the inner walls of the two clamping plates 32 are provided with elastic pads with patterns at the positions abutting against the glue dispensing pipes 33, the strip-shaped groove 310 provides a track for the movement of the clamping plates 32, so as to ensure the stability of the movement of the clamping plates 32. The clamping plates 32 are connected through springs and key pins, so as to better fix the glue dispensing pipes 33. The elastic pads with patterns can increase the friction between the clamping plates 32 and the glue dispensing pipes 33, so as to prevent the glue dispensing pipes 33 from loosening and improve the stability of glue dispensing.

[0029] Working principle: the driving motor 11 drives the swing arm 12 to move, realizing the position switching of glue taking and dispensing, and the hydraulic cylinder 13 precisely controls the height of the mounting seat 14. In the deflection mechanism 2 on the mounting seat 14, the stepping motor 21 drives the main driving wheel 22 to rotate, through the transmission belt 23 to make the driven wheel 26 rotate synchronously, and then drives the movable arm 24 to move along the inner wall cylinder and the guide groove 240 of the mounting seat 14 to realize deflection. The limiting seat 25 limits the range of the movable arm 24. The servo motor 3 controls the rotation of the angle adjusting disc 31 to adjust the angle, the clamping plate 32 is fixed with the dispensing pipe 33 through the spring and the key pin, and the textured elastic pad prevents loosening. The arc surface plate and the rack of the movable arm 24 are designed to improve the transmission efficiency and assist the side swing dispensing; the connection mode of the clamping plate 32 and the elastic pad ensure the stability of the dispensing pipe, and improve the dispensing accuracy and flexibility.

[0030] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dispensing device for die bonder, comprising a support arm (1), a driving motor (11) is fixedly installed on the side wall of the support arm (1), a swing arm (12) is fixedly connected to the output shaft of the driving motor (11), a hydraulic cylinder (13) is fixedly installed on the other end of the swing arm (12), and a mounting seat (14) is fixedly connected to the output rod of the hydraulic cylinder (13), characterized in that: The mounting seat (14) is fixedly provided with a deflection mechanism (2) for side glue dispensing; The deflection mechanism (2) comprises a stepping motor (21), a main drive wheel (22) is fixedly connected to an output shaft of the stepping motor (21), one end of the main drive wheel (22) is sleeved with a transmission belt (23), the main drive wheel (22) is engaged with an active arm (24), a driven wheel (26) is engaged with an end face of the other side of the active arm (24), the main drive wheel (22) and the driven wheel (26) are connected through the transmission belt (23), and limit seats (25) are fixedly arranged at both ends of the active arm (24).

2. The dispensing device of claim 1, wherein: The active arm (24) is an arc surface plate with rack strips arranged on both upper and lower end faces.

3. The glue dispensing device of claim 1, wherein: Guiding grooves (240) are formed in outer arms on both sides of the long side of the active arm (24).

4. The glue dispensing device of claim 1, wherein: Cylinders for guiding displacement of the active arm (24) are fixedly arranged in the middle of inner walls on both sides of the mounting seat (14).

5. The glue dispensing device of claim 1, wherein: Servo motors (3) are fixedly arranged on one side of outer walls of both limit seats (25) close to the stepping motor (21), output shafts of the servo motors (3) penetrate through the limit seats (25) and are fixedly connected with angle adjusting discs (31), and the angle adjusting discs (31) are rotationally connected to outer walls on the other side of the limit seats (25).

6. The dispensing apparatus of claim 5, wherein: Strip-shaped grooves (310) are formed in the angle adjusting discs (31), two clamping plates (32) are slidably connected in the strip-shaped grooves (310), one end of the two clamping plates (32) is connected through a spring, and the other end is connected through a key pin.

7. The glue dispensing device of claim 6, wherein: Glue dispensing pipes (33) are clamped and fixed on the two clamping plates (32), and elastic pads with patterns are arranged at positions, where inner walls of the two clamping plates (32) and the glue dispensing pipes (33) abut against each other.

Images