A precision screw-type glue supply and dispensing integrated device

Abstract

The present invention discloses an integrated device for precision screw-type glue supply and dispensing, which relates to the technical field of glue supply and dispensing equipment. It includes a base, hydraulic cylinders arranged on both sides of the top of the base, and a cross beam installed between the telescopic ends of the tops of the two hydraulic cylinders. The bottom end of a reduction motor is installed with a precision screw pump, the bottom end of the precision screw pump is installed with a pressure plate, the front end of a moving plate is installed with a screw dispenser, and a horizontal angle adjustment mechanism is installed on the top of a guiding beam; a fine adjustment mechanism for adjusting the screw dispenser is installed on the top of the moving plate. By using a precision screw pump for glue supply and cooperating with the drive of a reduction motor, the present invention can accurately control the conveying volume and pressure of the glue; the glue replenishing tank is internally provided with a pressure sensor and a liquid level sensor to form a perfect closed-loop control system; it can control the fluctuation of the glue supply pressure within an extremely small range, ensuring the stability of the glue supply during the dispensing process; through the design of the horizontal angle adjustment mechanism and the fine adjustment mechanism, the flexibility and accuracy of dispensing are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of glue supply and dispensing equipment, and in particular to a precision screw - type glue supply and dispensing integrated equipment. Background Art

[0002] As key equipment in the field of intelligent manufacturing, glue supply and dispensing equipment is widely used in high - precision manufacturing scenarios such as electronic packaging, medical devices, and aerospace. With the development of industrial products towards miniaturization and integration, higher requirements are put forward for the accuracy, stability, and efficiency of the dispensing process. Traditional pneumatic or peristaltic pump - type dispensing equipment is difficult to meet the requirements of emerging fields such as chip packaging (glue line width < 0.1 mm) and MEMS sensor assembly (positioning accuracy ± 0.005 mm) due to its rough flow control and large pressure fluctuations.

[0003] However, there are still significant technical bottlenecks in existing screw - type glue supply and dispensing equipment. Traditional glue supply equipment mostly adopts open - loop control or simple closed - loop structures and cannot dynamically adjust the glue supply pressure and flow rate in real - time. For example, common plunger pump or gear pump glue supply systems lack a pressure feedback mechanism. When the viscosity of the glue changes or the pipeline resistance increases, the glue supply pressure fluctuation is likely to exceed ± 2 MPa, directly affecting the dispensing consistency. Although some equipment is equipped with pressure sensors, they only start and stop the motor through fixed thresholds and cannot achieve dynamic compensation by PID algorithms, resulting in a pulsation amplitude of the glue supply flow rate of more than 15%. In the dispensing of precision electronic components, glue accumulation or glue breakage is likely to occur. In addition, traditional glue replenishment tanks mostly rely on manual observation of the liquid level and cannot automatically trigger liquid replenishment when the remaining amount of glue is lower than the critical value, often causing the production line to stop due to the interruption of glue supply. The high - pressure pipelines generally use single - layer rubber materials, with an instantaneous pressure resistance of less than 30 MPa, and the inner wall is easily adhered with colloid to form blockages, requiring frequent disassembly and cleaning, seriously affecting production efficiency. Therefore, it is necessary to solve and handle the above - mentioned technical problems. Summary of the Invention

[0004] The purpose of the present invention is to propose a precision screw - type glue supply and dispensing integrated equipment to solve the deficiencies existing in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solution: A precision screw-type glue supply and dispensing integrated device, including a base, a glue bucket provided on the top of the base, hydraulic cylinders provided on both sides of the top of the base, and a cross beam installed between the telescopic ends of the tops of the two hydraulic cylinders. A reduction motor is installed below the cross beam, the bottom end of the output shaft of the reduction motor is installed with a precision screw pump, the bottom end of the precision screw pump is installed with a pressure plate, a fixed frame is installed below the reduction motor, and vertical suspension rods are fixedly connected to both sides of the top of the fixed frame. The top ends of the suspension rods penetrate the cross beam and are fixedly connected to the cross beam through nuts; A mobile platform is installed on one side of the base, a vertical lifting linear motor is installed at the rear end of the top of the mobile platform, a longitudinal movement linear motor is longitudinally installed at the front end of the moving seat at the front end of the lifting linear motor, a horizontal guiding beam is slidably installed at the bottom of the longitudinal movement linear motor, a moving plate is slidably installed at the bottom of the guiding beam, a screw dispenser is installed at the front end of the moving plate, and a horizontal angle adjustment mechanism is installed at the top of the guiding beam; A fine adjustment mechanism for adjusting the screw dispenser is installed on the top of the moving plate.

[0006] Preferably, a dispensing nozzle is installed at the bottom end of the screw dispenser, an installation frame is fixedly installed at the rear end of the screw dispenser, a replenishing glue tank is vertically provided at the rear end of the installation frame, a pressure sensor and a liquid level sensor are arranged inside the replenishing glue tank, and a high-pressure pipe is arranged between the replenishing glue tank and the precision screw pump; A liquid injection pipe is installed between the bottom end of the replenishing glue tank and the liquid inlet end of the screw dispenser.

[0007] Preferably, support seats are provided at the four corners of the bottom surface of the base, universal wheels are installed at the four corners of the bottom surface of the mobile platform, rectangular frame-shaped docking seats are fixedly connected to both sides of the base, a receiving port is opened on one side of the mobile platform, a plug-in board is movably installed in the receiving port, locking bolts are respectively penetrated through the front ends of the docking seats, and locking grooves are opened on the front end of the plug-in board to cooperate with the locking bolts.

[0008] Preferably, a receiving cavity communicating with the receiving port is opened inside the mobile platform, and a pair of self-locking electric push rods for pushing the plug-in board are arranged inside the receiving cavity.

[0009] Preferably, the horizontal angle adjustment mechanism includes a circular groove opened in the middle of the top surface of the guiding beam, a protective shell fixedly installed inside the circular groove, a connecting shaft fixedly connected to the inner bottom surface of the protective shell, a gear ring fixedly sleeved at the bottom of the connecting shaft, a connecting disk rotatably arranged at the top end of the connecting shaft, and a connecting plate fixed to the top of the connecting disk. The connecting plate is fixedly connected to the moving seat at the bottom of the longitudinal movement linear motor. An installation opening is opened on one side of the bottom of the connecting disk, a heat dissipation circular plate is installed in the installation opening, a servo motor is installed at the bottom of the heat dissipation circular plate, and a driving gear meshing with the gear ring is installed at the bottom of the driving shaft of the servo motor.

[0010] Preferably, a transverse movement cavity is formed inside the guiding beam, a lead screw is rotatably arranged inside the transverse movement cavity, a control motor for driving the lead screw is installed at one end of the lead screw, a threaded barrel is sleeved on the lead screw, stable strip openings are formed in the middle and the front and rear ends of the bottom surface of the guiding beam along the length direction, a lifting seat is installed at the bottom end of the threaded barrel, the lifting seat is in a convex-shaped plate structure, anti-detachment plates are vertically and fixedly connected to the front and rear ends of the lifting seat, the anti-detachment plates are in an inverted L-shaped plate structure, the anti-detachment plates extend into the stable strip openings, and the width of the upper plate body of the anti-detachment plate is greater than the width of the stable strip openings.

[0011] Preferably, buffer strips are fixedly connected to the outer sides of the bottoms of the anti-detachment plates along the length direction, and the buffer strips are in a strip structure made of hollow rubber material; a groove for cooperating with the fine adjustment mechanism is formed in the top surface of the moving plate.

[0012] Preferably, the fine adjustment mechanism includes first hinge seats installed around the bottom of the lifting seat, angle adjustment rods movably hinged to the bottoms of the first hinge seats, and a plurality of second hinge seats installed around the top surface of the groove, the bottom of the telescopic end of the angle adjustment rod is movably hinged to the second hinge seats, and the angle adjustment rods are electric telescopic cylinders.

[0013] Preferably, a guiding hole is vertically formed in the middle of the bottom surface of the lifting seat, a guiding rod is vertically and movably inserted into the guiding hole, a connecting ball head is fixedly connected to the bottom end of the guiding rod, and a connecting ball seat movably connected to the connecting ball head is fixedly connected to the middle of the groove on the top surface of the moving plate.

[0014] Preferably, the convex part in the middle of the lifting seat extends into the transverse movement cavity, installation grooves are vertically formed on both sides of the top of the lifting seat, electric telescopic rods are vertically arranged inside the installation grooves, and the top of the telescopic end of the electric telescopic rod is fixedly connected to the bottom of the threaded barrel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By using a precision screw pump for glue supply and cooperating with a reduction motor drive, the present invention can accurately control the conveying volume and pressure of the glue; The glue replenishment tank is internally provided with a pressure sensor and a liquid level sensor, forming a perfect closed-loop control system; When the glue pressure is lower than the set threshold, the output flow of the precision screw pump is dynamically adjusted through the PID algorithm, so that the fluctuation of the glue supply pressure is controlled within a very small range, ensuring the stability of the glue supply during the dispensing process; At the same time, the liquid level sensor monitors the glue stock in real time, and automatically starts the liquid replenishment program when the remaining amount is lower than a certain proportion, ensuring the continuous and stable operation of the equipment; The injection pipe adopts a pulse damper, which effectively eliminates the flow pulsation generated by the rotation of the screw pump, further improving the continuity and stability of the dispensing; The high-pressure pipe adopts a three-layer composite structure, which can not only withstand high-pressure impacts, but also has anti-sticking and protective functions, ensuring the reliability of the glue conveying; In addition, the flow meter and pressure sensor on the high-pressure pipe form a double closed-loop control, and the rotation speed of the screw pump is adjusted through the fuzzy PID algorithm, making the glue replenishment flow synchronize with the dispensing consumption, greatly improving the accuracy and efficiency of the dispensing; Through the adjustable connection method between the moving table and the base, and the cooperation of the self-locking electric push rod and the plug-in board, the distance between the two can be automatically adjusted according to the size of the workpiece to be glued, and the coplanarity error between the moving table and the base is ensured to be within a very small range, improving the application range and versatility of the equipment; The design of the horizontal angle adjustment mechanism and the fine adjustment mechanism greatly improves the flexibility and accuracy of the dispensing;

[0016] 2. In the present invention, the horizontal angle adjustment mechanism drives the driving gear to mesh with the double-module gear ring through a servo motor, realizing the large-range rotation and high-precision angle control of the guiding beam, meeting the requirements of dispensing at different angles; The fine adjustment mechanism adopts an electric telescopic cylinder with a high-precision displacement sensor and a ball head and socket structure with universal connection, which can precisely fine-tune the posture of the moving plate, thereby realizing the precise adjustment of the vertical angle and inclination of the screw dispenser; At the same time, advanced drive technologies and compensation algorithms are adopted for each motion axis, such as microstepping drive technology, Kalman filter algorithm, etc., effectively improving the smoothness and positioning accuracy of the motion, and improving the overall positioning stiffness through the preloading optimization strategy; In addition, the design of the anti-disengagement plate and the buffer strip not only prevents the lifting seat from falling off, but also absorbs the impact energy through the fluid damping effect, reducing the vibration amplitude, effectively avoiding the splashing of the glue during the dispensing process, and improving the dispensing quality;

[0017] In summary, the precision screw-type glue supply and dispensing integrated equipment of the present invention has significant technical advantages in terms of glue supply stability, dispensing accuracy, equipment applicability and flexibility, providing an efficient and reliable solution for the field of precision dispensing. Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the first perspective of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the second perspective of the overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure after removing the glue bucket of the present invention;

[0022] Figure 4 It is a schematic diagram of the first perspective of the lifting linear motor and the screw dispenser of the present invention;

[0023] Figure 5 It is a schematic diagram of the second perspective of the lifting linear motor and the screw dispenser of the present invention;

[0024] Figure 6 It is a sectional view of the bottom view of the moving platform of the present invention;

[0025] Figure 7 It is a schematic diagram of the first perspective of the guide beam, the moving plate and the screw dispenser of the present invention;

[0026] Figure 8 It is a schematic diagram of the second perspective of the guide beam, the moving plate and the screw dispenser of the present invention;

[0027] Figure 9 It is a schematic diagram of the structure of the moving plate, the screw dispenser and the lead screw of the present invention;

[0028] Figure 10 It is a schematic diagram of the first perspective of the fine-tuning mechanism and the screw dispenser of the present invention;

[0029] Figure 11 It is a schematic diagram of the second perspective of the fine-tuning mechanism and the screw dispenser of the present invention;

[0030] Figure 12 It is a schematic diagram of the first perspective of the fine-tuning mechanism and the moving plate of the present invention;

[0031] Figure 13 It is a schematic diagram of the second perspective of the fine-tuning mechanism and the moving plate of the present invention;

[0032] Figure 14 It is a schematic diagram of the lower structure of the fine-tuning mechanism of the present invention.

[0033] Sequence numbers in the figure: 1, base; 2, glue bucket; 3, hydraulic cylinder; 4, cross beam; 5, suspension rod; 6, reduction motor; 7, precision screw pump; 8, pressure plate; 9, moving table; 10, lifting linear motor; 11, longitudinal movement linear motor; 12, guiding beam; 13, moving plate; 14, screw dispenser; 15, dispensing nozzle; 16, glue replenishing tank; 17, plug-in board; 18, self-locking electric push rod; 19, connecting plate; 20, connecting disc; 21, connecting shaft; 22, servo motor; 23, gear ring; 24, protective shell; 25, lead screw; 26, threaded barrel; 27, lifting seat; 28, electric telescopic rod; 29, anti-disengagement plate; 30, buffer strip; 31, guiding rod; 32, connecting ball head; 33, connecting ball seat; 34, angle adjusting rod; 35, mounting bracket. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1: Refer to Figures 1 to 14, A precision screw-type glue supply and dispensing integrated device, including a base 1, a glue bucket 2 provided on the top of the base 1, hydraulic cylinders 3 provided on both sides of the top of the base 1, and a cross beam 4 installed between the telescopic ends of the tops of the two hydraulic cylinders 3. A reduction motor 6 is installed below the cross beam 4, and the bottom end of the output shaft of the reduction motor 6 is installed with a precision screw pump 7. Each electrical component in this solution is electrically connected to an external control device through a wire, and the precision screw pump 7 dynamically adjusts the output flow through the PID algorithm. A pressure plate 8 is installed at the bottom end of the precision screw pump 7, and a fixed frame is installed below the reduction motor 6. Vertical hanging rods 5 are fixedly connected to both sides of the top of the fixed frame. The top ends of the hanging rods 5 penetrate the cross beam 4 and are fixedly connected to the cross beam 4 through nuts; A moving table 9 is installed on one side of the base 1, and a vertical lifting linear motor 10 is installed at the rear end of the top of the moving table 9. The lifting linear motor realizes Z-axis movement, and the repeat positioning accuracy is ±0.01 mm; A longitudinal movement linear motor 11 is longitudinally installed at the front end of the moving seat at the front end of the lifting linear motor 10. The longitudinal movement linear motor 11 realizes precise movement in the Y-axis direction. Using magnetic levitation guide rail technology, the friction coefficient is reduced to 0.002. With the feedback of the grating scale, the positioning accuracy reaches ±0.005 mm; A horizontal guide beam 12 is slidably installed at the bottom of the longitudinal movement linear motor 11, and a moving plate 13 is slidably installed at the bottom of the horizontal guide beam 12. A screw dispenser 14 is installed at the front end of the moving plate 13, and a horizontal angle adjustment mechanism is installed on the top of the horizontal guide beam 12; A fine adjustment mechanism for adjusting the screw dispenser 14 is installed on the top of the moving plate 13; A dispensing nozzle 15 is installed at the bottom end of the screw dispenser 14, and a mounting bracket 35 is fixedly installed at the rear end of the screw dispenser 14. A replenishing glue tank 16 is vertically provided at the rear end of the mounting bracket 35. The replenishing glue tank 16 is internally provided with a pressure sensor and a liquid level sensor. Since the replenishing glue tank 16 uses a replenishing glue tank with an internal pressure sensor, it is convenient to monitor the glue pressure in real time through the internal pressure sensor. When the detected value is lower than the set threshold (such as 12 MPa), the control system automatically increases the speed of the reduction motor 6, and drives the precision screw pump 7 to quickly pressurize and transport the colloid into the replenishing glue tank 16 through the accelerated reduction motor 6, and dynamically adjusts the output flow of the precision screw pump 7 through the PID algorithm; This closed-loop control method is convenient to control the glue supply pressure fluctuation within ±0.Within the range of 5 MPa; there is a high-pressure pipe between the glue replenishing tank 16 and the precision screw pump 7; the high-pressure pipe adopts a three-layer composite structure, with a polytetrafluoroethylene anti-sticking layer on the inner layer, a steel wire braided reinforcement layer in the middle, and a rubber protection layer on the outer layer, which can withstand an instantaneous pressure impact of 50 MPa; the injection pipe uses a pulse damper to eliminate the flow pulsation generated by the rotation of the precision screw pump 7 and ensure the continuity of the dispensing process; a liquid injection pipe is installed between the bottom end of the glue replenishing tank 16 and the liquid inlet end of the screw dispenser 14. The screw dispenser 14 adopts a flexible installation structure, compensating for equipment vibration through the elastic deformation of the mounting bracket 35, and the liquid injection pipe between the glue replenishing tank 16 and the screw dispenser 14 adopts a telescopic bellows design, allowing a displacement compensation of ±10 mm to avoid stress transmission caused by rigid connection; there is also a liquid level sensor inside the glue replenishing tank 16 to facilitate real-time monitoring of the glue liquid inventory. When the remaining amount inside the glue replenishing tank 16 is lower than 30%, the control system automatically starts the liquid replenishment program; the high-pressure pipe is also equipped with a flow meter and a pressure sensor to form a double closed-loop control, adjusting the rotation speed of the screw pump through the fuzzy PID algorithm to ensure that the glue replenishing flow is synchronized with the dispensing consumption.

[0036] Referring to Figures 5 to 6 , support seats are provided at the four corners of the bottom surface of the base 1, universal wheels are installed at the four corners of the bottom surface of the moving platform 9, docking seats in the shape of rectangular frames are fixedly connected to both sides of the base 1, a receiving port is opened on one side of the moving platform 9, a plug-in board 17 is movably installed in the receiving port, locking bolts are passed through the front ends of the docking seats, and locking grooves are opened on the front end of the plug-in board 17 to cooperate with the locking bolts; a receiving cavity communicating with the receiving port is opened inside the moving platform 9, and a pair of self-locking electric push rods 18 for pushing the plug-in board 17 are provided inside the receiving cavity. After the plug-in board 17 and the docking seat are connected and fixed through the locking bolts, when processing a larger-sized workpiece to be dispensed, the distance between the moving platform 9 and the base 1 can be adjusted. By extending the self-locking electric push rod 18, the plug-in board 17 can be pushed out of the receiving port, and then the moving platform 9 can be made to move away from the base 1 through the universal wheels at the bottom by the reaction force, facilitating the automatic adjustment of the distance between the moving platform 9 and the base 1, and also ensuring that the coplanarity error between the moving platform 9 and the base 1 is ≤ 0.05 mm.

[0037] Embodiment 2: It is basically the same as the technical solution of Embodiment 1, the difference is that, as Figures 7 to 9As shown, the horizontal angle adjustment mechanism includes a circular groove opened in the middle of the top surface of the guide beam 12, a protective shell 24 fixedly installed inside the circular groove, a connecting shaft 21 fixedly connected to the inner bottom surface of the protective shell 24, a gear ring 23 fixedly sleeved on the bottom of the connecting shaft 21, a connecting disk 20 rotatably arranged on the top of the connecting shaft 21 and a connecting plate 19 fixed on the top of the connecting disk 20, the connecting plate 19 is fixedly connected to the moving seat at the bottom of the longitudinal linear motor 11, a mounting opening is opened on one side of the bottom of the connecting disk 20, a heat dissipation circular plate is installed in the mounting opening, a servo motor 22 is installed at the bottom of the heat dissipation circular plate, and the heat dissipation circular plate is provided with a servo motor 22. It is made of aluminum alloy and has heat dissipation fins on the surface to quickly dissipate the heat generated by the servo motor 22. A driving gear meshing with the gear ring 23 is installed at the bottom of the driving shaft of the servo motor 22. When the horizontal angle of the guide beam is adjusted, the servo motor 22 drives the driving gear to mesh with the gear ring 23, so that the guide beam 12 can rotate ±130° around the connecting disk 20. The gear ring 23 adopts a dual-modulus design, with a modulus of 1.5 for coarse adjustment and a modulus of 0.8 for fine adjustment. Combined with the high-resolution encoder (2500 lines) of the servo motor 22, the angle control accuracy reaches ±0.02°.

[0038] Furthermore, a transverse movement cavity is provided inside the guide beam 12, and a lead screw 25 is provided inside the transverse movement cavity for rotation. A control motor for driving the lead screw 25 is installed at one end of the lead screw 25, and a threaded barrel 26 is sleeved on the lead screw 25. The middle part of the bottom surface of the guide beam 12 and the front and rear ends are provided with stable strip openings along the length direction, and a lifting seat 27 is installed at the bottom end of the threaded barrel 26. The transmission system of the lead screw 25 in the guide beam 12 adopts a double nut pre-tightening structure, and cooperates with the anti-backlash mechanism to eliminate the reverse backlash; the control motor adopts subdivision drive technology to accurately adjust the step angle to 0.002°, and the combination design of the anti-slip plate 29 and the buffer strip 30 effectively improves the movement smoothness of the moving plate 13 in the X-axis direction; when the lifting linear motor 10, the longitudinal linear motor 11 and the control motor are multi-linked, the control motor can compensate for the dynamic errors of each axis in real time through the Kalman filter algorithm, such as the thermal elongation of the lead screw caused by temperature changes, the deformation of the guide rail caused by load changes, etc. Through the preload optimization strategy, the overall positioning stiffness is increased to 80N / μm.

[0039] Furthermore, the lifting seat 27 is a convex-shaped plate structure. Anti-detachment plates 29 are vertically fixed to both the front and rear ends of the lifting seat 27. The anti-detachment plates 29 are inverted L-shaped plate structures. The anti-detachment plates 29 extend into the inside of the stabilizing strip openings, and the width of the upper plate body of the anti-detachment plates 29 is greater than the width of the stabilizing strip openings. Buffer strips 30 are fixedly connected along the length direction to the outer sides of the bottoms of the anti-detachment plates 29. Through the inverted L-shaped design of the anti-detachment plates 29, two-way constraints in the X / Y axes are provided in the horizontal direction. In the vertical direction, the elastic deformation of the buffer strips 30 compensates for the minute height differences to achieve the dynamic balance of multiple degrees of freedom. Moreover, the buffer strips 30 are strip structures made of hollow rubber material and filled with silicone oil inside. When the lifting seat 27 descends, the anti-detachment plates 29 can prevent the lifting seat 27 from falling off. And when the anti-detachment plates 29 descend, the buffer strips 30 can prevent the plate body from hitting the inner bottom surface of the guiding beam 12 severely. The buffer strips 30 absorb the impact energy through the fluid damping effect. Experimental tests show that this design can reduce the vibration amplitude by 70% and effectively avoid the situation of colloid splashing during the dispensing process.

[0040] Embodiment 3: It is basically the same as the technical solution of Embodiment 1, except that, as Figures 10 to 14As shown in the figure, a groove matching with the fine adjustment mechanism is provided on the top surface of the moving plate 13. The fine adjustment mechanism includes a first hinge seat installed around the bottom of the lifting seat 27, an angle adjustment rod 34 movably hinged to the bottom of the first hinge seat, and a plurality of second hinge seats installed around the top surface of the groove. The bottom of the telescopic end of the angle adjustment rod 34 is movably hinged to the second hinge seat. The angle adjustment rod 34 is an electric telescopic cylinder. A guide hole is vertically provided in the middle of the bottom surface of the lifting seat 27. A guide rod 31 is vertically and movably inserted into the guide hole. The clearance between the guide rod 31 and the guide hole is controlled within 0.01 mm to ensure the smoothness of the adjustment process. A connecting ball head 32 is fixedly connected to the bottom end of the guide rod 31. A connecting ball seat 33 movably connected to the connecting ball head 32 is fixedly connected to the middle of the groove on the top surface of the moving plate 13. Since the angle adjustment rod 34 of the fine adjustment mechanism uses an electric telescopic cylinder with a built-in high-precision displacement sensor, through the universal connection of the connecting ball head 32 and the connecting ball seat 33, the attitude adjustment of the moving plate 13 can be realized, and the angle inclination of the moving plate 13 can be finely adjusted, so as to achieve the adjustment of the vertical angle and inclination of the screw dispenser 14, and improve the convenience and accuracy of the glue application operation of the screw dispenser 14. The convex part in the middle of the lifting seat 27 extends into the transverse movement cavity. Installation grooves are vertically provided on both sides of the top of the lifting seat 27. Electric telescopic rods 28 are vertically arranged in the installation grooves. The electric telescopic rods 28 use electric telescopic rods with gravity sensors inside. The top of the telescopic end of the electric telescopic rod 28 is fixedly connected to the bottom of the threaded cylinder 26. When the moving plate 13 reaches the target position, the electric telescopic rod 28 can automatically adjust the pre-tightening force according to the load weight, and the vertical pressure of the screw dispenser 14 is monitored in real time through the gravity sensor. The control system dynamically adjusts the telescopic amount of the telescopic end to make the contact force acting on the workpiece surface stable within the range of the set value ±0.5 N.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A precision screw-type integrated glue supply and dispensing device, comprising a base (1), a glue barrel (2) arranged on the top of the base (1), hydraulic cylinders (3) arranged on both sides of the top of the base (1), and a crossbeam (4) installed between the telescopic ends of the tops of the two hydraulic cylinders (3), characterized in that: A reduction motor (6) is installed below the cross beam (4), a precision screw pump (7) is installed at the bottom end of the output shaft of the reduction motor (6), a pressure plate (8) is installed at the bottom end of the precision screw pump (7), a fixing frame is installed below the reduction motor (6), and suspension rods (5) are vertically fixed to both sides of the top of the fixing frame, and the top of the suspension rod (5) passes through the cross beam (4) and is fixed to the cross beam (4) via nuts; A moving platform (9) is installed on one side of the base (1), a vertical lifting linear motor (10) is installed on the top rear end of the moving platform (9), a longitudinal moving linear motor (11) is longitudinally installed on the front end of the moving seat at the front end of the lifting linear motor (10), a horizontal guide beam (12) is slidably installed on the bottom of the longitudinal moving linear motor (11), a moving plate (13) is slidably installed on the bottom of the guide beam (12), a screw dispenser (14) is installed on the front end of the moving plate (13), and a horizontal angle adjustment mechanism is installed on the top of the guide beam (12); a fine adjustment mechanism for adjusting the screw dispenser (14) is installed on the top of the moving plate (13); The horizontal angle adjustment mechanism comprises a circular groove formed in the middle of the top surface of the guide beam (12), a protective shell (24) fixedly mounted inside the circular groove, a connecting shaft (21) fixedly connected to the inner bottom surface of the protective shell (24), a gear ring (23) fixedly sleeved on the bottom of the connecting shaft (21), a connecting disk (20) rotatably disposed on the top of the connecting shaft (21), and a connecting plate (19) fixed on the top of the connecting disk (20), the connecting plate (19) being fixedly connected to a moving seat at the bottom of the longitudinal linear motor (11), a mounting opening formed at one side of the bottom of the connecting disk (20), a heat dissipation circular plate being mounted in the mounting opening, a servo motor (22) being mounted at the bottom of the heat dissipation circular plate, and a driving gear meshing with the gear ring (23) being mounted at the bottom of the driving shaft of the servo motor (22); The guide beam (12) has a transverse movement cavity formed inside, a lead screw (25) is rotatably provided inside the transverse movement cavity, a control motor for driving the lead screw (25) is mounted at one end of the lead screw (25), a threaded tube (26) is sleeved on the lead screw (25), a stabilizing strip opening is formed at the middle part and the front and rear ends of the bottom surface of the guide beam (12) along the length direction, a lifting seat (27) is mounted at the bottom end of the threaded tube (26), the lifting seat (27) is a convex plate-shaped structure, and the lifting seat (27) is a convex plate-shaped structure. 27) The front and rear ends are both vertically fixed with an anti-slip plate (29), the anti-slip plate (29) is an inverted L-shaped plate structure, the anti-slip plate (29) extends into the inside of the stabilizing strip opening, and the width of the upper plate body of the anti-slip plate (29) is greater than the width of the stabilizing strip opening; the bottom outer side of the anti-slip plate (29) is fixed with a buffer strip (30) along the length direction, the buffer strip (30) is a hollow rubber strip structure; the top surface of the movable plate (13) is provided with a groove that cooperates with the fine adjustment mechanism; The fine adjustment mechanism comprises a first hinged seat installed around the bottom of the lifting seat (27), an angle adjustment rod (34) movably hinged to the bottom of the first hinged seat, and a plurality of second hinged seats installed around the top surface of the groove, the bottom of the telescopic end of the angle adjustment rod (34) is movably hinged to the second hinged seat, and the angle adjustment rod (34) is an electric telescopic cylinder.

2. According to claim 1, a precision screw-type glue supply and dispensing integrated equipment is characterized by: A glue dispensing nozzle (15) is installed at the bottom end of the screw glue dispenser (14); a mounting frame (35) is fixedly installed at the rear end of the screw glue dispenser (14); a glue replenishing tank (16) is vertically arranged at the rear end of the mounting frame (35); a pressure sensor and a liquid level sensor are built into the glue replenishing tank (16); a high-pressure pipe is arranged between the glue replenishing tank (16) and the precision screw pump (7); and a liquid injection pipe is installed between the bottom end of the glue replenishing tank (16) and the liquid inlet end of the screw glue dispenser (14).

3. The precision screw-type glue supply and dispensing integrated equipment according to claim 1 is characterized in that: Support seats are provided at the four corners of the bottom surface of the base (1), universal wheels are installed at the four corners of the bottom surface of the mobile platform (9), rectangular frame-shaped docking seats are fixedly connected to both sides of the base (1), a storage opening is provided on one side of the mobile platform (9), a plug-in plate (17) is movably installed in the storage opening, a locking bolt is passed through the front end of the docking seat, and a locking groove is provided at the front end of the plug-in plate (17) to cooperate with the locking bolt.

4. The precision screw-type glue supply and dispensing integrated equipment according to claim 3 is characterized by: A storage cavity communicated with the storage opening is provided inside the movable platform (9), and a pair of self-locking electric push rods (18) for being pushed by the plug-in board (17) are provided inside the storage cavity.

5. The precision screw-type glue supply and dispensing integrated equipment according to claim 2, characterized in that: A guide hole is vertically opened in the middle of the bottom surface of the lifting seat (27), a guide rod (31) is vertically movably inserted in the guide hole, a connecting ball head (32) is fixedly connected to the bottom end of the guide rod (31), and a connecting ball seat (33) movably connected to the connecting ball head (32) is fixedly connected to the middle of the groove on the top surface of the movable plate (13).

6. The precision screw-type glue supply and dispensing integrated equipment according to claim 5, characterized in that: The convex block portion in the middle of the lifting seat (27) extends into the interior of the transverse displacement cavity, and mounting grooves are vertically provided on both sides of the top of the lifting seat (27), and an electric telescopic rod (28) is vertically provided inside the mounting groove, and the top of the telescopic end of the electric telescopic rod (28) is fixedly connected to the bottom of the threaded tube (26).

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