Automatic gluing device and gluing method

Abstract

The invention discloses an automatic gluing device and a gluing method, and belongs to the technical field of threaded caps, the automatic gluing device comprises a working console, a pneumatic clamping assembly and a position adjusting assembly, the position adjusting assembly is provided with a pneumatic gluing assembly, and the pneumatic gluing assembly is used for adjusting the distance between the pneumatic gluing assembly and a to-be-machined internal thread cap body; a circle of uniform and regular thread glue coating can be formed at the thread glue applying position of the inner screw cap, the machining precision and the product quality are improved, material waste caused by improper manual operation is avoided, and compared with manual glue applying and traditional equipment, manpower dependence and error risks are reduced, and the operation cost is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of threaded caps, and specifically relates to an automatic glue application device and a glue application method. Background Art

[0002] As Figure 6 shown is an internal threaded cap on an oil shock absorber. A skeleton oil seal is installed inside the internal threaded cap. Before installing the internal threaded cap with the guide seat, thread sealant needs to be applied around its periphery to ensure its sealing performance and prevent oil leakage. The existing glue application method is manually completed by workers. One hand holds the thread sealant bottle, and the nozzle of the thread sealant bottle is aligned with the threaded part to be glued. The thread sealant bottle is squeezed forcefully to make the glue flow out slowly, and the other hand holds the internal threaded cap and rotates it slowly, so as to ensure that uniform thread sealant is applied at the threaded part of the internal threaded cap. There are many deficiencies in this manual glue application method during this process. It requires workers to highly concentrate, which not only increases the labor intensity of workers, but also may cause fatigue and distraction, thus affecting work efficiency.

[0003] The whole process relies on manual operation. From the perspective of processing efficiency, this not only limits the overall production capacity of the production line, but also may increase production costs, and more time and manpower are required to complete the same task. More critically, the way of manually squeezing out glue and aligning often makes it difficult to ensure the uniformity and accuracy of glue application. Uneven application of thread sealant may lead to a decline in the sealing performance of the connection part, thus affecting the overall quality and reliability of the product. At the same time, problems such as misalignment or residues will also bring inconvenience to subsequent product processing and use, and may even cause potential safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic glue application device and a glue application method to solve the problems mentioned in the above prior art.

[0005] Provide an automatic glue application device and a glue application method, including:

[0006] A working control console;

[0007] A pneumatic clamping assembly, which is used to clamp the internal threaded cap body to be processed;

[0008] A pneumatic glue application assembly, which is used to apply glue to the internal threaded cap body to be processed;

[0009] A position adjustment assembly, on which the pneumatic glue application assembly is arranged, and it is used to adjust the distance between the pneumatic glue application assembly and the internal threaded cap body to be processed.

[0010] Through the position adjustment component, fine-tuning of the glue application component in the spatial position is achieved, ensuring the accurate glue outlet position, allowing the glue gun head to move in the X, Y, and Z directions, adapting to internal thread caps of different sizes. After applying a full circle of external thread glue, the glue gun head is adjusted to another height (such as the inner circle of the cap body) for the application of the second circle of glue. The servo motor system drives the workpiece to rotate during the glue application process to achieve a uniform spiral glue application effect;

[0011] The to-be-processed internal thread cap body is clamped and fixed by the pneumatic clamping component, and the position adjustment component moves the pneumatic glue application component to the starting position of the cap body thread;

[0012] The pneumatic clamping component can drive the cap body to rotate slowly;

[0013] The pneumatic glue application component starts to discharge glue. As the workpiece rotates, a complete and uniform glue tape is formed; if multiple circles of glue need to be applied, the position adjustment component moves the glue gun head to the inner circle position, which can be applicable to various sizes and various glue circle requirements (such as one circle, half circle, three-point glue application).

[0014] As a further embodiment of the present invention: the pneumatic clamping component includes a mounting frame, a servo motor is arranged on the mounting frame, the output end of the servo motor is fixedly connected with a transmission shaft, and a three-jaw chuck mechanism is fixedly connected to the transmission shaft.

[0015] The three jaws are pneumatically controlled for their clamping actions, applicable to various sizes and various glue circle requirements (such as one circle, half circle, three-point glue application), effectively reducing manual errors and improving efficiency; the glue discharge time, glue volume, and glue discharge pressure can all be adjusted, with strong flexibility; ensuring the consistency of glue application and the sealing effect.

[0016] As a further embodiment of the present invention: the three-jaw chuck mechanism includes a pneumatic three-jaw chuck, the pneumatic three-jaw chuck is fixedly connected to the transmission shaft, and a plurality of sliders are slidably connected to the pneumatic three-jaw chuck along the circumferential direction, and a clamping jaw is fixedly connected to each of the plurality of sliders.

[0017] The slider is fixedly connected to the telescopic end of the pneumatic three-jaw chuck cylinder. When the piston rod of the pneumatic three-jaw chuck cylinder is in the retracted position, the slider slides radially outwards, and the clamping jaw opens to prepare for placing the to-be-glued internal thread cap body. When the piston rod of the pneumatic three-jaw chuck cylinder moves, the clamping jaw moves, facilitating personnel to take the glued internal thread cap body to be glued.

[0018] As a further embodiment of the present invention: the position adjustment component includes a left-right movement mechanism, an up-down movement mechanism is arranged on the left-right movement mechanism, an angle adjustment component is arranged on the up-down movement mechanism, and a pneumatic glue application component is arranged above the angle adjustment component.

[0019] During the caulking process, the nozzle is aligned with the threaded area of the cover through the left - right moving mechanism, and the vertical height between the pneumatic caulking assembly and the to - be - processed internal - threaded cover is adjusted through the up - down moving mechanism.

[0020] As a further embodiment of the present invention: The left - right moving mechanism includes a mounting base. A driving mechanism is arranged inside the mounting base. An installation slider is fixedly connected to the driving mechanism, and an up - down moving mechanism is arranged on the installation slider.

[0021] The driving mechanism consists of a driving motor, a transmission gear, a toothed transmission belt, etc. The teeth of the installation slider are meshed with the toothed transmission belt. The driving motor drives the toothed transmission belt to move through the transmission gear. During the movement of the toothed transmission belt, the engaged installation slider drives the entire slider to move left and right along the mounting base to adjust the lateral distance between the entire pneumatic caulking assembly and the to - be - processed internal - threaded cover.

[0022] As a further embodiment of the present invention: The up - down moving mechanism includes a lifting frame body. The lifting frame body is fixedly connected to the installation slider. A position - adjusting component is slidably connected to the lifting frame body, and a pneumatic caulking assembly is rotatably connected to the position - adjusting component.

[0023] The position - adjusting component is slidably connected to the lifting frame body and is used to adjust the height of the entire pneumatic caulking assembly.

[0024] As a further embodiment of the present invention: The angle - adjusting component includes an adjusting seat body. The adjusting seat body is slidably connected to the lifting frame body. A connection hole is arranged on the adjusting seat body, and a pneumatic caulking assembly is rotatably connected in the connection hole. A fastening screw for fastening the pneumatic caulking assembly is arranged on the adjusting seat body.

[0025] Fine - tuning of the height of the pneumatic caulking assembly is achieved through sliding. When the height of the pneumatic caulking assembly is adjusted to the appropriate position, it is locked by fixing bolts to ensure the stability of the overall structure. The adjusting seat body is slidably connected to the lifting frame body and is provided with a connection hole for installing the caulking head support; through the fastening screw and the fixing bolt, it is used for sliding positioning and locking; fine - tuning of the height of the pneumatic caulking assembly is achieved through sliding. When the height of the pneumatic caulking assembly is adjusted to the appropriate position, it is locked by fixing bolts to ensure the stability of the overall structure.

[0026] As a further embodiment of the present invention: The pneumatic caulking assembly includes a cylinder mounting bracket. A caulking cylinder is arranged on the cylinder mounting bracket. The telescopic end of the caulking cylinder is fixedly connected to a caulking syringe mounting rack, and a caulking syringe is arranged on the caulking syringe mounting rack.

[0027] After the pneumatic sealant application assembly reaches the appropriate position through the position adjustment assembly, the sealant application cylinder extends and retracts to drive the movement of the sealant syringe mounting bracket, driving the sealant syringe close to the threaded surface of the inner threaded cover body to be processed for sealant application.

[0028] As a further embodiment of the present invention: A guide rod is provided between the sealant syringe mounting bracket and the cylinder mounting bracket.

[0029] As a further embodiment of the present invention: It further includes an electrical control component, and the electrical control component is provided on the work console.

[0030] The clamping system control logic: The system compressed gas pressure is regulated by an overflow valve, and the compressed gas at an appropriate pressure flows to the first three-position five-way electromagnetic directional control valve for regulation. When the right coil of the first three-position five-way electromagnetic directional control valve is energized (the left coil is de-energized), the first three-position five-way electromagnetic directional control valve is conducted to allow air to pass through. The pneumatic three-jaw chuck cylinder extends and retracts to drive the slider to move, causing the jaws to move and open, completing the clamping of the inner threaded cover.

[0031] The pneumatic three-jaw chuck cylinder extends and retracts to drive the slider to move, causing the jaws to move in the opposite direction and retract, completing the release of the inner threaded cover; the piston rod of the sealant application cylinder extends, and the sealant syringe approaches the inner threaded cover to be processed for precise sealant application; the sealant syringe moves away from the inner threaded cover to be processed for part replacement; the solenoid valve energization duration is controlled by a single-chip microcomputer to control the glue output time and further control the sealant application length / quantity, controlling the uniform extrusion of the glue to form a stable threaded glue line or dot distribution.

[0032] As a further embodiment of the present invention: A sealant application method includes the following steps:

[0033] Step 1: Place the inner threaded cover body into the pneumatic clamping assembly for automatic clamping.

[0034] Step 2: Through the position adjustment assembly, adjust the movement of the pneumatic sealant application assembly in the X, Y, and Z directions until the height distance between the sealant application assembly and the inner threaded cover is 15 - 30 mm.

[0035] Step 3: Readjust the starting sealant application position of the pneumatic sealant application assembly relative to the inner threaded cover for sealant application. The pneumatic clamping assembly drives the inner threaded cover body to be processed to rotate slowly, and sealant is applied to this position. After completing a single circle of sealant application, the pneumatic sealant application assembly retracts and adjusts until the distance between the sealant application head and the inner threaded cover body is 15 - 30 mm.

[0036] Step 4: Repeat Step 2 and Step 3 to sequentially apply sealant to the inner circle of the inner threaded cover.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] 1. This application adopts a pneumatic three-jaw chuck structure to replace the traditional rotating platform. It has the ability of automatic centering and self-adaptive diameter adjustment. The three jaws open and close synchronously to ensure high concentricity when clamping the threaded cap to be processed, which is beneficial to keeping the spiral line consistent during gluing, improving the accuracy of the glue layer, and is applicable to various internal threaded cap bodies.

[0039] 2. This application adopts a guide rod linear bearing structure to ensure that the syringe has no jitter when moving up and down, and the linearity of the needle head displacement is better; the cylinder pushes the syringe to accurately control the glue output time and pressure, ensuring uniform glue output and clean glue breakage.

[0040] 3. The position adjustment component can achieve functions of left-right adjustment, up-down fine adjustment, and angle fine adjustment, adapting to internal threaded cap bodies with different diameters and structures, improving the process flexibility. The automatic glue output syringe can accurately align with the thread gluing position of the internal threaded cap for uniform and automatic glue output operation. At the same time, the internal threaded cap to be processed is firmly fixed by a stable pneumatic three-jaw clamping device. With the drive of the servo motor, the internal threaded cap rotates uniformly. A uniform and regular thread glue coating can be formed at the thread gluing position of the internal threaded cap, improving the processing accuracy and product quality, avoiding waste of materials caused by improper manual operation. Compared with manual gluing and traditional equipment, it reduces the dependence on manpower and the risk of errors, and saves operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present drawings or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present drawings. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the pneumatic clamping component structure provided by the present invention;

[0044] Figure 3 It is a schematic diagram of the left-right moving mechanism structure provided by the present invention;

[0045] Figure 4 It is a schematic diagram of the pneumatic gluing component structure provided by the present invention;

[0046] Figure 5 It is a schematic diagram of the gas path control logic provided by the present invention;

[0047] Figure 6 It is a schematic diagram of the structure of the internal threaded cap on the oil pressure shock absorber provided by the present invention.

[0048] In the figure: 1. Working control console;

[0049] 2. Pneumatic clamping assembly; 21. Mounting frame; 22. Servo motor; 23. Transmission shaft; 24. Three-jaw chuck mechanism; 241. Pneumatic three-jaw chuck; 242. Slide block; 243. Claw;

[0050] 3. Left and right moving mechanism; 31. Mounting seat; 32. Driving mechanism; 33. Mounting slide block;

[0051] 4. Up and down moving mechanism; 41. Lifting frame body;

[0052] 5. Angle adjustment assembly; 51. Adjusting seat body; 511. Connecting hole;

[0053] 6. Pneumatic sealant injection assembly; 61. Cylinder mounting bracket; 62. Sealant injection cylinder; 63. Linear bearing; 64. Guide rod; 65. Sealant injection syringe mounting frame; 66. Sealant injection syringe; 67. Sealing cap;

[0054] 74. Air source; 75. Oil-water separator; 76. Pressure reducing valve; 77. System pressure gauge; 78. Oil mist lubricator; 79. Relief valve; 710. First three-way solenoid directional control valve; 711. Second three-way solenoid directional control valve; 712. Two-way two-way solenoid valve; 713. Pneumatic three-jaw chuck cylinder;

[0055] 81. LCD display screen; 82. Start button; 83. Emergency stop button; 84. Air pressure adjustment knob;

[0056] 10. Position adjustment assembly. Detailed implementation manners

[0057] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0058] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present invention. For those of ordinary skill in the art, without making creative efforts, the present invention can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in the development process may be complex and time-consuming, for those of ordinary skill in the art related to the content disclosed by the present invention, some design, manufacturing or production changes based on the technical content disclosed by the present invention are only conventional technical means and should not be understood as the content disclosed by the present invention being insufficient.

[0059] However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters and repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate understanding by those skilled in the art. In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present invention and are not intended to limit the subject matter described in the claims.

[0060] See also Figures 1 - 6 As shown, an automatic gluing device and gluing method in an embodiment of the present invention include a working control console 1, a pneumatic clamping assembly 2, a pneumatic gluing assembly 6 and a position adjustment assembly 10, wherein the pneumatic clamping assembly 2 is used to clamp the internal thread cover to be processed; the pneumatic gluing assembly 6 is used to glue the internal thread cover to be processed; the position adjustment assembly 10 is provided with a pneumatic gluing assembly 6, which is used to adjust the distance between the pneumatic gluing assembly 6 and the internal thread cover to be processed.

[0061] The pneumatic clamping assembly 2 is used to fix the internal thread cover body to prevent displacement or jumping during the gluing process. The cylinder is used to provide clamping force, and the outer edge or non-gluing area of ​​the internal thread cover body to be processed is clamped by the jaws, driving the clamped internal thread cover body to be processed to rotate slowly and uniformly, so that the gluing trajectory is evenly distributed around the thread circle.

[0062] The pneumatic gluing component 6 realizes the quantitative and fixed-position spraying of thread glue, and controls the opening and closing of the gluing valve by air pressure, thereby controlling the gluing time and glue amount; by setting the nozzle diameter and air pressure parameters (0.5MPa air pressure, 0.3mm nozzle diameter), the glue line diameter is adjusted. The specific pneumatic clamping component 2 is linked with the position adjustment component 10 to realize the action of approaching / moving away from the workpiece.

[0063] Step 1: Place the internal thread cover into the pneumatic clamping assembly 2 for automatic clamping

[0064] Step 2: Use the position adjustment component 10 to adjust the movement of the pneumatic glue assembly 6 in the X, Y, and Z directions until the height distance between the pneumatic glue assembly 6 and the internal thread cover is 15 to 30 mm, and the optimal rotation is 20 mm to ensure accurate glue discharge.

[0065] Step 3: Adjust the distance between the pneumatic gluing component and the starting gluing position of the internal thread cover again to glue. The pneumatic clamping component 2 drives the internal thread cover to be processed to rotate slowly to glue the position. After completing a single circle of gluing, the pneumatic gluing component 6 retracts and adjusts until the distance between the gluing head and the internal thread cover is 15-30mm (the pneumatic gluing component 6 is glued synchronously, the air pressure of the pneumatic gluing component 6 is 0.5MPa, the nozzle diameter is 0.3mm, and a uniform glue line is formed; after completing a single circle, the gluing head automatically retracts to a height of 20mm.

[0066] Step 4: Repeat Step 2 and Step 3 to apply glue to the inner ring of the internal thread cover in sequence, which is applicable to various sizes and various rubber ring requirements (such as applying glue in one circle, half a circle, and at three points).

[0067] Furthermore, it should be noted that please refer to Figure 1 、 Figure 2 and Figure 3 , the mounting bracket 21 is fixed on the working console 1, providing the installation foundation and rigid support for the entire pneumatic clamping assembly 2. The servo motor 22 is mounted on the mounting bracket 21, and its function is to provide high-precision rotational power, with adjustable output speed and rotation angle, suitable for different glue application requirements (such as glue application trajectories in one circle, half a circle, dot, etc.);

[0068] The transmission shaft 23 is rigidly connected to the output end of the servo motor 22, transmitting the rotational torque of the servo motor 22 to the three-jaw chuck mechanism 24 to ensure coaxiality and stability during rotation,

[0069] The three-jaw chuck mechanism 24 is fixedly installed at the end of the transmission shaft 23 and is used to clamp internal thread covers of different specifications. The three jaws 243 contract / expand synchronously to achieve automatic centering and clamping of circular workpieces. The clamping action of the three jaws 243 is pneumatically controlled, which is applicable to various sizes and various rubber ring requirements (such as applying glue in one circle, half a circle, and at three points), effectively reducing manual errors and improving efficiency; the glue output time, glue volume, and glue output pressure are all adjustable, with strong flexibility; ensuring the consistency of glue application and the sealing effect.

[0070] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the three-jaw chuck mechanism 24 includes a pneumatic three-jaw chuck 241. The pneumatic three-jaw chuck 241 is fixedly connected to the transmission shaft 23. A plurality of sliders 242 are slidably connected to the pneumatic three-jaw chuck 241 in the circumferential direction. Claws 243 are fixedly connected to the plurality of sliders 242. The slider 242 is fixedly connected to the telescopic end of the pneumatic three-jaw chuck cylinder 713. The piston rod of the pneumatic three-jaw chuck cylinder 713 is in the retracted position, and the slider 242 slides radially outward, and the claw 243 opens to prepare for placing the internal thread cover to be glued. When the piston rod of the pneumatic three-jaw chuck cylinder 713 moves, the claw 243 moves, facilitating personnel to take the internal thread cover to be glued after the glue application is completed.

[0071] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3, the position adjustment assembly 10 includes a left - right movement mechanism 3. A up - down movement mechanism 4 is arranged on the left - right movement mechanism 3. An angle adjustment assembly 5 is arranged on the up - down movement mechanism 4. An air - operated caulking assembly 6 is arranged above the angle adjustment assembly 5. During the caulking process, through the left - right movement mechanism 3, the nozzle is aligned with the threaded area of the cover body, and then through the up - down movement mechanism 4, the vertical height of the air - operated caulking assembly 6 from the to - be - processed internal - threaded cover body is adjusted.

[0072] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the left - right movement mechanism 3 includes a mounting seat 31. A driving mechanism 32 is arranged inside the mounting seat 31. An installation slider 33 is fixedly connected to the driving mechanism 32. The up - down movement mechanism 4 is arranged on the installation slider 33.

[0073] The driving mechanism 32 is composed of a driving motor, a transmission gear, a toothed transmission belt, etc. The teeth of the installation slider 33 are meshed with the toothed transmission belt. The driving motor drives the toothed transmission belt to move through the transmission gear. During the movement of the toothed transmission belt, the engaged installation slider 33 is driven, driving the entire installation slider 33 to move left and right along the mounting seat 31 to adjust the lateral distance of the entire air - operated caulking assembly 6 from the to - be - processed internal - threaded cover body.

[0074] Specifically, please refer to Figure 1 、 Figure 2 and Figure 3 , the up - down movement mechanism 4 includes a lifting frame body 41. The lifting frame body 41 is fixedly connected to the installation slider 33. An angle adjustment assembly 5 is slidably connected to the lifting frame body 41. An air - operated caulking assembly 6 is rotatably connected to the angle adjustment assembly 5. The lifting frame body 41 is fixed on the installation slider 33 and moves left and right together with the installation slider 33. The angle adjustment assembly 5 is slidably connected to the lifting frame body 41 for adjusting the height of the entire air - operated caulking assembly 6.

[0075] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 4, the angle adjustment component 5 includes an adjustment base body 51. The adjustment base body 51 is slidably connected to the lifting frame body 41. A connection hole 511 is provided on the adjustment base body 51. An air-operated caulking component 6 is rotatably connected in the connection hole 511. The adjustment base body 51 is provided with fastening screws for fastening the air-operated caulking component. The adjustment base body 51 is slidably connected to the lifting frame body 41. The adjustment base body 51 is provided with a connection hole 511 for installing the cylinder mounting bracket 61 of the air-operated caulking component 6; through the fastening screws and the fixing bolts, it is used for sliding positioning and locking; by sliding, the height of the air-operated caulking component 6 can be finely adjusted. When the height of the air-operated caulking component 6 is adjusted to the appropriate position, it is locked by the fixing bolts to ensure the stability of the overall structure. The adjustment base body 51 is slidably connected to the lifting frame body 41. The adjustment base body 51 is provided with a connection hole 511 for installing the cylinder mounting bracket 61 of the air-operated caulking component 6; through the fastening screws and the fixing bolts, it is used for sliding positioning and locking; by sliding, the height of the air-operated caulking component 6 can be finely adjusted. When the height of the air-operated caulking component 6 is adjusted to the appropriate position, it is locked by the fixing bolts to ensure the stability of the overall structure;

[0076] The connection hole 511 has a rotational connection function. The cylindrical end of the cylinder mounting bracket 61 of the air-operated caulking component 6 is inserted into the hole; realizing the rotational angle adjustment of the air-operated caulking component 6 within a certain range; by manually rotating the entire air-operated caulking component 6 on the connection hole 511, the caulking angle is finely adjusted. After the adjustment is completed, the angle position is locked by the fastening screws to maintain the consistency of the glue output. The fastening screws are used to fix the angle of the caulking component; the height of the adjustment base body 51 in the lifting frame body 41 is locked by the fixing bolts.

[0077] In one embodiment, please refer to Figure 2 、 Figure 3 and Figure 4 , the air-operated caulking component 6 includes a cylinder mounting bracket 61. A caulking cylinder 62 is provided on the cylinder mounting bracket 61. The telescopic end of the caulking cylinder 62 is fixedly connected to a caulking syringe mounting frame 65. A caulking syringe 66 is provided on the caulking syringe mounting frame 65. When the air-operated caulking component 6 reaches the appropriate position through the position adjustment component 10, the telescopic movement of the caulking cylinder 62 drives the caulking syringe mounting frame 65 to move, driving the caulking syringe 66 close to the threaded surface of the to-be-processed internal thread cover body, and caulking the to-be-processed internal thread cover body.

[0078] Furthermore, please refer to Figure 2 、 Figure 3 and Figure 4, a guide rod 64 is provided between the caulking syringe mounting bracket 65 and the cylinder mounting bracket 61. The two guide rods 64 are arranged on the cylinder mounting bracket 61 in the same direction as the piston rod of the caulking cylinder 62; one end of the two guide rods 64 is fixed to the cylinder mounting bracket 61, and the other end is fixed to the caulking syringe mounting bracket 65, and is guided by a linear bearing 63 for movement; it provides a high-precision linear guiding path for the up and down movement of the caulking syringe mounting bracket 65, and avoids inaccurate caulking position or glue leakage caused by deviation or shaking.

[0079] It should be noted here that a sealing cap 67 is arranged at the upper end of the caulking syringe 66, and an O-ring seal is embedded in the groove of the sealing cap 67; it can avoid air pressure leakage during the caulking process, ensure accurate piston movement; prevent the reverse flow or volatilization of the glue; ensure a closed environment for the glue during storage and extrusion, and extend the validity period of the glue.

[0080] In a specific embodiment, please refer to Figure 1 and Figure 5 As shown, an electrical control component is arranged on the work control console 1. The electrical control component is placed inside the housing of the work control console 1. The electrical control component includes an electric control board, various electronic components, a single-chip microcomputer, an air source 74, an oil-water separator 75, a pressure reducing valve 76, a pressure gauge 77, an oil mist lubricator 78, an overflow valve 79, a first three-way five-port solenoid directional valve 710, a second three-way five-port solenoid directional valve 711, a two-way two-port solenoid directional valve 712, and a pneumatic three-jaw chuck cylinder 713. The single-chip microcomputer controls the solenoid valve to act, and then controls the cylinder to complete the caulking action process;

[0081] The clamping system control logic is that the system compressed gas pressure is adjusted by the overflow valve 79. The compressed gas with appropriate pressure flows to the first three-way five-port solenoid directional valve 710 for adjustment. When the right coil of the first three-way five-port solenoid directional valve 710 is energized (the left coil is de-energized), the first three-way five-port solenoid directional valve 710 is conducted to allow air to pass through, and the pneumatic three-jaw chuck cylinder 713 expands and contracts to drive the slider 242 to move, causing the jaw 243 to move and the jaw 243 to open, completing the clamping of the to-be-processed internal thread cover body;

[0082] When the right coil is de-energized (the left coil is energized), the first three-way five-port solenoid directional valve 710 is conducted to allow air to pass through, and the pneumatic three-jaw chuck cylinder 713 expands and contracts to drive the slider 242 to move, causing the jaw 243 to move in the opposite direction and the jaw 243 to retract, completing the release of the to-be-processed internal thread cover body;

[0083] The glue outlet needle position adjustment logic is that the system compressed gas pressure is adjusted by the overflow valve 79. The compressed gas with appropriate pressure flows to the second three-way five-port solenoid directional valve 711 for adjustment. When the right coil is energized (the left coil is de-energized), the piston rod of the caulking cylinder 62 extends, and the caulking syringe 66 approaches the to-be-processed internal thread cover body for accurate caulking;

[0084] The right coil loses power (the left coil gets power), the piston rod of the glue application cylinder 62 retracts, and the glue application syringe 66 moves away from the internal thread cover to be processed for replacing parts;

[0085] Glue output control logic: The system compressed gas pressure is regulated by the overflow valve 79. The compressed gas with appropriate pressure flows to the two-position two-way electromagnetic directional control valve 712 for regulation. When the right coil gets power (the left coil loses power), the compressed air enters the glue application syringe 66 through the two-position two-way electromagnetic directional control valve 712, and pressure is formed inside the glue application syringe 66. The thread glue inside the glue application syringe 66 is evenly pressed out. In addition, the power-on duration of the solenoid valve is controlled by the single-chip microcomputer to control the glue output time and further control the glue application length / quantity, so as to control the even extrusion of the glue and form a stable thread glue line or dot distribution.

[0086] Please refer to Figure 1 and Figure 5 As shown, it further includes a display control component. The display control component is placed on the side of the work console 1. The display control component includes a liquid crystal display 81, a start button 82, an emergency stop button 83, a system pressure gauge, and a pneumatic pressure adjustment knob 84. The liquid crystal display 81 is placed on the side of the work console 1, and there are parameter input buttons on it to adjust the glue output parameters. The start button 82 and the emergency stop button 83 are placed on the right side of the liquid crystal display 81 for starting and stopping the device. The system pressure gauge 77 and the pneumatic pressure adjustment knob 84 are placed between the liquid crystal display 81, the start button 82, and the emergency stop button 83. The overflow pressure of the overflow valve 79 is changed by the pneumatic pressure adjustment knob 84 to adjust the system pressure, and the system pressure range is 0.4 MP, which is displayed on the system pressure gauge 77.

[0087] It should be noted that the present invention is not limited to the above embodiments. The above embodiments are only examples. Embodiments with the same structure and the same function and effect as the technical idea within the technical solution scope of the present invention are all included in the technical scope of the present invention. In addition, within the scope not departing from the gist of the present invention, various deformations that can be thought of by those skilled in the art are applied to the embodiments, and other ways constructed by combining some constituent elements in the embodiments are also included in the scope of the present invention.

Claims

1. An automatic glue application device, characterized in that, Including: A working console; A pneumatic clamping assembly for clamping the inner-threaded cover body to be processed; A pneumatic sealant application assembly for applying sealant to the inner-threaded cover body to be processed; A position adjustment assembly, on which the pneumatic sealant application assembly is provided.

2. The automatic gluing device according to claim 1, wherein The pneumatic clamping assembly includes a mounting frame, the mounting frame is arranged on the working console, a servo motor is arranged on the mounting frame, the output end of the servo motor is fixedly connected with a transmission shaft, and a three-jaw chuck mechanism is fixedly connected to the transmission shaft.

3. An automatic glue application device according to claim 2, characterized in that, The three-jaw chuck mechanism includes a pneumatic three-jaw chuck, the pneumatic three-jaw chuck is fixedly connected to the transmission shaft, a plurality of sliders are slidably connected to the pneumatic three-jaw chuck along the circumferential direction, and a clamping jaw is fixedly connected to each of the plurality of sliders.

4. An automatic glue dispensing device according to claim 1, characterized in that, The position adjustment assembly includes a left-right movement mechanism, an up-down movement mechanism is arranged on the left-right movement mechanism, an angle adjustment assembly is arranged on the up-down movement mechanism, and the pneumatic sealant application assembly is arranged above the angle adjustment assembly.

5. An automatic gluing device according to claim 4, characterized in that, The left-right movement mechanism includes a mounting seat, a driving mechanism is arranged inside the mounting seat, a mounting slider is fixedly connected to the driving mechanism, the mounting slider is provided with the up-down movement mechanism, the up-down movement mechanism includes a lifting frame body, the lifting frame body is fixedly connected to the mounting slider, an angle adjustment assembly is slidably connected to the lifting frame body, and the pneumatic sealant application assembly is rotatably connected to the angle adjustment assembly.

6. An automatic glue application device according to claim 5, characterized in that, The angle adjustment assembly includes an adjustment seat body, the adjustment seat body is slidably connected to the lifting frame body, a connection hole is arranged on the adjustment seat body, the pneumatic sealant application assembly is rotatably connected in the connection hole, and a fastening screw for fastening the pneumatic sealant application assembly is arranged on the adjustment seat body.

7. An automatic gluing device according to claim 1, characterized in that, The pneumatic sealant application assembly includes a cylinder mounting bracket, a sealant application cylinder is arranged on the cylinder mounting bracket, the telescopic end of the sealant application cylinder is fixedly connected with a sealant syringe mounting frame, and a sealant syringe is arranged on the sealant syringe mounting frame.

8. An automatic glue application device according to claim 7, characterized in that, A guide rod is arranged between the sealant syringe mounting frame and the cylinder mounting bracket, the guide rod is slidably connected in a linear bearing, and the linear bearing is arranged on the cylinder mounting bracket.

9. An automatic glue application device according to claim 1, characterized in that, It further includes an electrical control assembly, and the electrical control assembly is arranged on the working console.

10. A caulking method, which uses an automatic caulking device according to any one of claims 1 to 9, characterized in that, Including the following steps; Step 1: Place the inner-threaded cover body into the pneumatic clamping assembly for automatic clamping; Step 2: Through the position adjustment assembly, adjust the movement of the pneumatic sealant application assembly in the X, Y, and Z directions until the distance between the sealant application assembly and the inner-threaded cover body is 15 - 30 mm; Step 3: Adjust the starting sealant application position of the pneumatic sealant application assembly relative to the inner-threaded cover body again for sealant application. The pneumatic clamping assembly drives the inner-threaded cover body to be processed to rotate slowly, apply sealant to this position. After completing a single circle of sealant application, the pneumatic sealant application assembly retracts and adjusts until the distance between the sealant application head and the inner-threaded cover body is 15 - 30 mm; Step 4: Repeat Step 2 and Step 3 to apply sealant to multiple inner circles of the inner-threaded cover body in sequence.

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