Automatic assembly equipment and process for threaded cover assembly

Abstract

The invention relates to automatic assembly equipment for a threaded cover assembly, which comprises a machine table, the machine table is respectively connected with a first clamping device, a second clamping device and a coating device, and the first clamping device comprises a first rotating platform, a first chuck and a first power device; the second clamping device comprises a first mounting part, a first telescopic device, a second chuck and a floating mechanism, the first rotating platform and the first mounting part are connected with the machine table, the first chuck is connected with the first rotating platform, and the first power device is in power connection with the first rotating platform. The first telescopic device is connected with the first installation component, the second chuck is connected with the first telescopic device through the floating mechanism, and the first chuck and the second chuck are concentric. The assembling device has the beneficial effects that the assembling quality, the assembling efficiency and the assembling quality consistency are improved, and the labor intensity of assembling personnel is reduced.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and in particular to the field of threaded cover assembly technology, and specifically refers to automatic assembly equipment and process for threaded cover assembly. Background Art

[0002] The threaded cover is also called an infrared wave-transparent cover. It is located outside the radar, antenna and other equipment of various aircraft to protect these equipment from the influence of harsh natural environments such as wind, sand, rain, snow, high temperature and low temperature. With the continuous development of technology in the aerospace field, aircraft have put forward higher requirements on the materials of threaded covers. As a material with high temperature / low temperature resistance, corrosion resistance, climate change resistance, non-toxicity and excellent electrical insulation performance, polytetrafluoroethylene is widely used in threaded covers of various aircraft.

[0003] The existing threaded cover is usually assembled from two components: a cover body and a connecting ring. The cover body serves as the outer cover of equipment such as radar and antenna, and the connecting ring is used to connect the cover body to an aircraft or other equipment. In order to ensure the connection strength between the cover body and the connecting ring, the threaded cover assembly is usually double-fixed by threaded connection and adhesive bonding during assembly. The specific process is that first, the assembler manually applies adhesive to all the thread grooves of the internal thread of the cover body and the external thread of the connecting ring, and then, with the cooperation of multiple assemblers, the external thread of the connecting ring is screwed into the internal thread of the cover body to complete the assembly of the threaded cover assembly.

[0004] The assembly method of this threaded cover assembly often makes it difficult to ensure the concentricity of the cover body and the connecting ring during the assembly process, and it is also difficult to ensure that the adhesive can be evenly and fully coated in all the thread grooves of the internal thread of the cover body and the external thread of the connecting ring, which leads to poor assembly quality and low consistency of assembly quality of the threaded cover assembly. In severe cases, the connecting ring and the cover body may disintegrate due to the connection strength failing to meet the requirements, and during assembly, the external thread of the connecting ring may easily damage the internal thread of the cover body, causing the cover body to be scrapped. In addition, in the actual assembly process, it is difficult to ensure the accuracy of the threaded connection between the internal thread of the cover body and the external thread of the connecting ring, and the assemblers are often required to perform repeated operations. Therefore, the labor intensity of the assemblers is extremely high and the assembly efficiency is low. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic assembly device and process for a threaded cover assembly, which can ensure the concentricity of a cover body and a connecting ring during the assembly process, and can quickly, evenly and fully apply adhesive to all thread grooves of the inner thread of the cover body and the outer thread of the connecting ring, thereby improving the assembly quality, assembly efficiency and assembly quality consistency, and reducing the labor intensity of assemblers.

[0006] The present invention is achieved through the following technical solutions, which provide an automatic assembly device for a threaded cover assembly, including a machine platform, wherein the machine platform is respectively connected with a first clamping device, a second clamping device, and a coating device, wherein the first clamping device includes a first rotating platform, a first chuck, and a first power device, and the second clamping device includes a first mounting component, a first telescopic device, a second chuck, and a floating mechanism, wherein the first rotating platform and the first mounting component are respectively connected to the machine platform, the first chuck is connected to the first rotating platform, the first power device is power-connected to the first rotating platform, the first telescopic device is connected to the first mounting component, the second chuck is connected to the first telescopic device through a floating mechanism, and the first chuck is concentric with the second chuck.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation of the first clamping device, the second clamping device and the coating device, the threaded cover assembly can be automatically clamped, the external thread of the connecting ring and the internal thread of the cover body can be automatically coated with adhesive, and the external thread of the connecting ring can be automatically screwed into the internal thread of the cover body. Compared with the traditional manual assembly method, during the assembly of the threaded cover assembly, the assembly of the threaded cover assembly can be completed without changing the position of the axis of the cover body and the connecting ring, thereby improving the assembly efficiency, assembly quality and consistency of the assembly quality of the threaded cover assembly.

[0008] The first chuck and the second chuck can be used to clamp the connecting ring and the cover body of the threaded cover assembly respectively. Since the first chuck and the second chuck are concentric and have a self-centering function, after the first chuck and the second chuck complete the clamping, the concentricity of the connecting ring and the cover body can be guaranteed, thereby ensuring the assembly quality of the threaded cover assembly.

[0009] Preferably, the first telescopic device is connected to a second mounting component, the floating mechanism includes a first elastic component, and the second chuck is connected to the second mounting component via the first elastic component.

[0010] The beneficial effect of adopting the above-mentioned preferred technical solution is that when the first telescopic device drives the cover body to descend and the cover body is fitted with the connecting ring, the first elastic component can be used to float and buffer the cover body, preventing the cover body from continuing to descend and causing squeezing between the internal thread of the cover body and the external thread of the connecting ring, thereby avoiding damage to the internal thread of the cover body, and when the external thread of the connecting ring is ready to be screwed into the internal thread of the cover body, a pressure can be applied to the cover body to facilitate the external thread of the connecting ring to buckle into the internal thread of the cover body.

[0011] Preferably, the floating mechanism further comprises a first detecting component, the first detecting component is connected to the second mounting component, and the first elastic component is respectively connected to the first detecting component and the second chuck.

[0012] The beneficial effect of adopting the above-mentioned preferred technical solution is that: the pressure of the first elastic component can be fed back to the electronic control system through the first detection component, and then the first telescopic device is controlled to start or stop telescoping, so as to avoid that when the cover body is in contact with the connecting ring and the first elastic component is fully compressed, the first telescopic device continues to drive the cover body to move downward, causing damage to the cover body, or the pressure applied to the cover body by the first elastic component is insufficient, thereby affecting the buckle of the external thread of the connecting ring.

[0013] Preferably, the floating mechanism further comprises a third mounting component, the third mounting component is connected to the second chuck, and the third mounting component is slidably connected to the second mounting component via a fourth mounting component.

[0014] Preferably, the first installation component is connected to a first linear motion component, and the second installation component is slidably connected to the first linear motion component via a slider.

[0015] The beneficial effect of adopting the above-mentioned preferred technical solution is that: through the third mounting component, the stability of the second chuck can be improved when the second chuck moves up and down relative to the second mounting component, and the second chuck can be prevented from horizontal movement, swinging, etc., thereby ensuring the concentricity of the second chuck and the first chuck. Through the first linear motion component, the stability of the second mounting component when moving up and down can be increased, making it less likely for the second mounting component to tilt, rotate, and other adverse phenomena.

[0016] Preferably, the second chuck is connected to a second clamping jaw, and the second clamping jaw is connected to a profiling fixture.

[0017] The beneficial effect of adopting the above-mentioned preferred technical solution is that: since the clamped part of the cover body is usually not a plane with a regular shape, but a curved surface with an arc, a chamfer or other special shapes, the second claw can be made to fit more closely with the clamped part of the cover body when clamping the cover body through the profiling clamp, thereby increasing the clamping area of ​​the second claw and allowing the cover body to be clamped more firmly by the second claw.

[0018] Preferably, the coating device includes a sixth mounting component connected to the machine, the sixth mounting component is connected to the third telescopic device, the third telescopic device is connected to the seventh mounting component, the seventh mounting component is rotatably connected to the first rotating shaft, the first rotating shaft is connected to the ninth mounting component, the ninth mounting component is respectively connected to the first coating component and the second transmission component, the seventh mounting component is respectively connected to the second coating component and the second power device, and the second power device is transmission-connected to the second transmission component via the first transmission component.

[0019] The beneficial effect of adopting the above-mentioned preferred technical scheme is that: through the second power device, the first transmission component and the second transmission component, the first coating component can be driven to rotate horizontally around the first rotating shaft through the ninth mounting component, and through the third telescopic device, the first coating component and the second coating component can be driven to rise at the same time, and by controlling the rotation speed of the ninth mounting component and the rising speed of the first coating component and the second coating component, the rotation speed of the ninth mounting component is made the same as the rotation speed of the first chuck, and every time the first chuck and the ninth mounting component rotate one circle, the first coating component and the second coating component rise by the pitch of the external thread of the connecting ring and the internal thread of the cover body, so that the first coating component and the second coating component can respectively and quickly and evenly apply the adhesive in all the thread grooves of the internal thread of the cover body and the external thread of the connecting ring, and at the same time avoid applying the adhesive to a position outside the internal thread of the cover body, thereby greatly improving the efficiency and quality of the adhesive coating, and ensuring the consistency of the adhesive coating quality.

[0020] Preferably, the coating device includes a second linear motion component and a second telescopic device, the second linear motion component is connected to the machine, the sixth mounting component is slidably connected to the second linear motion component via the fifth mounting component, the seventh mounting component is slidably connected to the fifth mounting component via the eighth mounting component, and the second telescopic device is respectively connected to the machine and the sixth mounting component.

[0021] The beneficial effect of adopting the above-mentioned preferred technical solution is that: the sixth mounting component can be driven to move along the second linear motion component through the second telescopic device, and then during the assembly process of the threaded cover assembly, the coating device is driven to move according to the process steps, thereby improving the degree of automation of the automatic assembly equipment of the threaded cover assembly in the present invention, thereby improving the assembly efficiency of the threaded cover assembly.

[0022] Preferably, the first rotating shaft is concentric with the first chuck and the second chuck.

[0023] The present invention also provides an assembly process of a threaded cover assembly, comprising the following steps:

[0024] The first step is to use a concentricity check rod and a laser centering instrument or a concentricity detector to check the concentricity of the first chuck and the second chuck. If the concentricity of the first chuck and the second chuck does not meet the requirements, the first chuck and the second chuck are adjusted until the concentricity of the two meets the requirements;

[0025] The second step is to set the first standby position, clamping position, first coating position, first assembly position, and second assembly position of the second chuck corresponding to the specifications and models of each thread cover assembly, the second standby position and second coating position of the first rotating shaft, and the third standby position and third coating position of the seventh mounting component in the electric control system;

[0026] The third step is to select the specification and model of the threaded cover assembly to be assembled, place the cover body flat on the first chuck, and the electronic control system controls the piston rod of the first telescopic device to extend, so that the second chuck is lowered from the first standby position to the set clamping position, and the second claw of the second chuck automatically clamps the cover body. After the clamping is completed, the second chuck drives the cover body to move upward to the set first standby position, and then the connecting ring is placed flat on the first chuck and ensure that all the first claws are inside the connecting ring. Then the electronic control system controls the first claw of the first chuck to clamp the connecting ring from the inside to the outside, and the clamping of the connecting ring and the cover body is completed;

[0027] In the fourth step, the electric control system controls the piston rod of the second telescopic device to extend, driving the first rotating shaft to move along the second linear motion component from the second standby position at the rear side of the machine to the second coating position set at the front side of the machine. At this time, the axis of the first rotating shaft coincides with the axes of the first chuck and the second chuck, the piston rod of the third telescopic device is completely retracted, the seventh mounting component is located at the third standby position, the front end height of the second discharge portion of the second coating component is the same as the height of the lower end of the external thread of the connecting ring, and then the electric control system controls the piston rod of the first telescopic device to extend, so that the second chuck is lowered from the first standby position to the first coating position. At this time, the front end height of the first discharge portion of the first coating component is the same as the height of the lower end of the internal thread of the cover body;

[0028] In the fifth step, the electronic control system controls the first power device and the second power device to start, and the first power device and the second power device respectively drive the first chuck and the ninth mounting component to start rotating at the same time, and the rotation speed of the first chuck is the same as that of the ninth mounting component. At the same time, the second switch component and the third switch component are turned on at the same time, and the high-pressure gas source squeezes out the adhesive in the first coating component and the second coating component and coats them in the thread grooves of the internal thread of the cover body and the external thread of the connecting ring respectively. When the first chuck and the ninth mounting component start to rotate, the electronic control system controls the piston rod of the third telescopic device to extend at a uniform speed, so that the seventh mounting component moves upward at a uniform speed from the third standby position, and the first coating component and the second coating component are driven to move upward along the fifth mounting component at the same time through the seventh mounting component. The extension speed of the piston rod of the third telescopic device matches the rotation speed of the first chuck and the ninth mounting component, that is, every time the first chuck and the ninth mounting component rotate one circle, the piston rod of the third telescopic device can drive the first coating component and the second coating component to rise to the same height at a uniform speed, and the third telescopic device drives the first coating component and the second coating component to move upward along the fifth mounting component. The rising height is the same as the pitch of the external thread of the connecting ring and the pitch of the internal thread of the cover body, until the seventh installation component moves upward from the third standby position to the third coating position, at which time the first coating component and the second coating component complete the adhesive coating in all the thread grooves of the internal thread of the cover body and the external thread of the connecting ring, and then the electronic control system controls the first power device and the second power device to stop working, the first chuck and the ninth installation component to stop rotating, the second switch component and the third switch component are closed, and the first coating component and the second coating component stop extruding the adhesive outward, and then the electronic control system controls the piston rod of the first telescopic device and the piston rod of the third telescopic device to retract at the same time, so that the second chuck moves upward from the first coating position to the first standby position, and the seventh installation component moves downward from the third coating position to the third standby position, at which time the cover body is located above the first coating component, and then the electronic control system controls the piston rod of the second telescopic device to retract, so that the sixth installation component and the seventh installation component drive the first rotating shaft to move from the second coating position to the second standby position at the rear side of the machine, thereby making the coating device away from the first chuck and the second chuck;

[0029] In the sixth step, the electric control system controls the piston rod of the first telescopic device to extend rapidly, so that the second chuck quickly drops from the first standby position to the first assembly position. At this time, the bottom of the cover body is completely fitted with the top of the connecting ring, and the first switch component connects the vent hole of the first elastic component with the external normal pressure environment. Then the electric control system controls the piston rod of the first telescopic device to extend slowly. At this time, as the piston rod of the first telescopic device extends, the overall length of the first elastic device gradually decreases until the piston rod of the first telescopic device extends to the set length and stops extending. At this time, the overall length of the first elastic component is greater than the minimum overall length of the first elastic component. Since the vent hole of the first elastic component is connected to the external normal pressure environment, the first elastic component will not generate elastic force, and the first elastic component and the cover body are both supported by the connecting ring, so the value of the first detection component is zero. Then the electronic control system controls the first switch component to switch the passage so that the vent hole of the first elastic component is connected to the high-pressure gas source. With the introduction of the high-pressure gas source, the elastic force of the first elastic component and the value of the first detection component gradually increase. The electronic control system automatically adjusts the pressure of the high-pressure gas source entering the first elastic component through the first adjusting component, so that the value of the first detection component meets the requirement, avoiding excessive pressure. The cover body is damaged. When the value of the first detection component is stable, the electronic control system controls the first power device to start, and drives the connecting ring to rotate in the screw-in direction through the first chuck. Since the first elastic component applies pressure to the cover body, the external thread of the connecting ring is buckled into the internal thread of the cover body during the rotation of the first chuck. Then, as the first chuck continues to rotate, the external thread of the connecting ring is gradually screwed into the internal thread of the cover body. In the process of the external thread of the connecting ring being screwed into the internal thread of the cover body, the cover body continues to move downward, the overall length of the first elastic component continues to increase, and the value of the first detection component gradually increases. When the value of the first detection component drops to the set value, the electric system controls the piston rod of the first telescopic device to start to extend at a uniform speed. The extension speed of the piston rod of the first telescopic device is the same as the descending speed of the cover body. At this time, the overall length of the first elastic component is less than the maximum overall length of the first elastic component to prevent the cover body from bearing the pulling force of the connecting ring, causing the cover body to fall off the second chuck or causing damage to the first detection component and the first elastic component. Until the second chuck is lowered from the first assembly position to the second assembly position, the first power device stops working, and the external thread of the connecting ring is completely screwed into the internal thread of the cover body.

[0030] In the seventh step, the electric control system first controls the second chuck to loosen the cover body, and the first telescopic device drives the second chuck to move upward to the first standby position, and then controls the first chuck to loosen the connecting ring, and the assembler takes away the threaded cover assembly to complete the assembly of the threaded cover assembly;

[0031] Step 8. Repeat steps 1 to 7 to quickly complete the assembly of the threaded cover assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0034] Figure 3 It is a schematic structural diagram of the first clamping device in the present invention;

[0035] Figure 4 is a schematic structural diagram of the second clamping device in the present invention;

[0036] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0037] Figure 6 It is a schematic diagram of the structure of the coating device in the present invention.

[0038] As shown in the figure:

[0039] 1. Machine, 2. First clamping device, 3. Second clamping device, 4. Coating device, 5. Control cabinet, 6. Touch screen, 7. Control switch;

[0040] 201, a first power device, 202, a first rotating platform, 203, a first chuck, 204, a first claw;

[0041] 301, a first mounting component, 302, a first telescopic device, 303, a second mounting component, 304, a first linear motion component, 305, a second chuck, 306, a first elastic component, 307, a first detection component, 308, a third mounting component, 309, a fourth mounting component, 310, a first limiting component, 311, a second clamping claw, 312, a profiling fixture;

[0042] 401. The second linear motion component, 402. The fifth mounting component, 403. The second telescopic device, 404. The sixth mounting component, 405. The second limiting component, 406. The seventh mounting component, 407. The eighth mounting component, 408. The third telescopic device, 409. The first rotating shaft, 410. The first joint, 411. The second joint, 412. The ninth mounting component, 413. The first coating component, 414. The tenth mounting component, 415. The second power device, 416. The first transmission component, 417. The second transmission component, 418. The eleventh mounting component, 419. The second coating component. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Embodiment 1:

[0045] like Figure 1-6 The automatic assembly equipment of a threaded cover assembly shown in the figure includes a machine table 1, the table top of the machine table 1 is connected with a first clamping device 2, a second clamping device 3, and a coating device 4, the first clamping device 2 and the second clamping device 3 are both located at the front side of the machine table 1, and the coating device 4 is located at the rear side of the machine table 1, the first clamping device 2 includes a first power device 201, a first rotating platform 202, and a first chuck 203, the first rotating platform 202 is connected to the machine table 1, the first power device 201 is connected to the first rotating platform 202, and the first power device 201 is provided with an overload protector. In this embodiment, preferably, the first power device 201 is a servo motor, which is connected to the first rotating platform 202. The first power device 201 can drive the rotating platform to rotate, the first chuck 203 is horizontally fixed on the first rotating platform 202, and at least two first claws 204 are provided on the first chuck 203. All the first claws 204 move synchronously in the slide groove of the first chuck 203. The first chuck 203 is a self-centering chuck, and the first claw 204 is driven by electric or pneumatic means. In this embodiment, preferably, the first chuck 203 is a three-claw self-centering electric chuck, and the first claw 204 is a positive claw or a reverse claw. In this embodiment, preferably, the first claw 204 is a reverse claw, and the maximum clamping diameter of the first chuck 203 is greater than the inner diameter of the connecting ring;

[0046] The first power device 201 can drive the first chuck 203 to rotate horizontally through the rotating platform, and the first claw 204 of the first chuck 203 can clamp the connecting ring from the inside to the outside of the connecting ring, and in the process of the first claw 204 clamping the connecting ring, the connecting ring can be automatically centered to ensure that the axis of the connecting ring is in the same position when the first chuck 203 repeatedly clamps the connecting ring;

[0047] The second clamping device 3 includes a first mounting component 301, which is a door-type structure. A first telescopic device 302 is vertically connected to the top of the first mounting component 301. In this embodiment, preferably, the first telescopic device 302 is an electric cylinder. A second mounting component 303 is provided below the first telescopic device 302. The second mounting component 303 is fixedly connected to the piston rod of the first telescopic device 302. The first mounting component 301 is vertically connected to a first linear motion component 304. Two first linear motion components 304 are symmetrically arranged on the left and right sides of the first mounting component 301. The first linear motion component 304 is a linear guide or an optical axis. In this embodiment, preferably, the first linear motion component 304 is a linear guide. The second mounting component 303 is slidably connected to the first linear motion component 304 through a slider. The second clamping device 3 also includes a second chuck 305 and a floating mechanism. The second chuck 305 is connected to the second mounting component 303 through the floating mechanism, and the second chuck 305 is concentric with the first chuck 203.

[0048] The floating mechanism includes a first elastic component 306 and a first detection component 307. The first detection component 307 is connected to the bottom of the second mounting component 303. The second chuck 305 is horizontally arranged below the first detection component 307. The first elastic component 306 is vertically arranged. The two ends of the first elastic component 306 are respectively connected to the first detection component 307 and the second chuck 305. The first detection component 307 and the first elastic component 306 are respectively provided with at least one. In this embodiment, preferably, the first detection component 307 and the first elastic component 306 are respectively provided with three. In this embodiment, preferably, the first elastic component 306 is an air spring. The air spring is connected to the high-pressure air source through a pipeline. When the air spring is connected to the high-pressure air source A first switch component and a first regulating component are connected to the pipeline, and the first switch component has at least two passages, one of which can connect the air vent of the air spring with the high-pressure air source, and the other passage can connect the air vent of the air spring with the external normal pressure environment, and the first switch component can switch the two passages, and the pressure of the high-pressure air source entering the first elastic component 306 can be adjusted by the first regulating component to adjust the elastic force of the first elastic component 306. In this embodiment, preferably, the first switch component is a two-position three-way solenoid valve, and the first regulating component is an electrically controlled proportional valve. The sum of the maximum elastic forces of several first elastic components 306 is less than the maximum pressure of the first telescopic device 302, and the top of the second chuck 305 is vertically fixed. There is a third mounting component 308, and the second mounting component 303 is connected to a fourth mounting component 309, and the third mounting component 308 is slidably connected to the fourth mounting component 309. In this embodiment, preferably, the third mounting component 308 is an optical axis, and the fourth mounting component 309 is a linear bearing. The third mounting component 308 and the fourth mounting component 309 are respectively provided with at least one. In this embodiment, preferably, the third mounting component 308 and the fourth mounting component 309 are respectively evenly distributed along the circumference of the second chuck 305. The length of the third mounting component 308 is greater than the maximum stretching length of the first elastic component 306. A first limiting component 310 is connected to the top of the third mounting component 308, and the first limiting component 310 can be a pin, a pressure Cap or other components with the same function. In this embodiment, preferably, the first limiting component 310 is a pressure cap, and the first limiting component 310 can prevent the third mounting component 308 from escaping from the fourth mounting component 309. The second chuck 305 is provided with at least two second claws 311, and all the second claws 311 move synchronously in the slide groove of the second chuck 305. The second chuck 305 is a self-centering chuck, and the second claw 311 is driven electrically or pneumatically. In this embodiment, preferably, the second chuck 305 is a three-claw self-centering electric chuck, and the second claw 311 is a positive claw or a reverse claw. In this embodiment, preferably, the second claw 311 is a positive claw, and the maximum clamping diameter of the second chuck 305 is greater than the outer diameter of the cover body;The clamping surface of the second clamping jaw 311 is connected with a profiling fixture 312, and the cross-sectional shape and size of the profiling fixture 312 are the same as the shape and size of the outer contour of the clamped portion of the cover body. By using the second clamping jaw 311 and the profiling fixture 312, the second chuck 305 can clamp the cover body from the outside to the inside, and in the process of the second chuck 305 clamping the cover body, the cover body can be automatically centered, ensuring that when the second chuck 305 repeatedly clamps the cover body, the axis of the cover body is in the same position, thereby ensuring the concentricity of the cover body and the connecting ring at the same time;

[0049] The coating device 4 includes a second linear motion component 401, a fifth mounting component 402, and a second telescopic device 403. The second linear motion component 401 is horizontally connected to the table of the machine 1. The second linear motion component 401 is a linear guide or an optical axis. In this embodiment, preferably, the second linear motion component 401 is a linear guide. The axis of the second linear motion component 401 is arranged along the front and rear direction of the machine 1. Two second linear motion components 401 are symmetrically arranged on the left and right sides of the machine 1. The fifth mounting component 402 is slidably connected to the second linear motion component 401 through a slider. In this embodiment, preferably, each second linear motion component 401 is slidably connected to two fifth mounting components 402, and the fifth mounting component 402 is slidably connected to the sixth mounting component. The sixth mounting component 404 is horizontally arranged, and a second limiting component 405 is connected to the bottom of the sixth mounting component 404. The second limiting component 405 is provided with a limiting threaded hole, and the limiting threaded hole is threadedly connected with a top screw or a screw. The sixth mounting component 404 can be fixed to the fifth mounting component 402 through the second limiting component 405. The second telescopic device 403 is horizontally connected to the table of the machine 1, and the axis of the piston rod of the second telescopic device 403 is parallel to the axis of the second linear motion component 401. The piston rod of the second telescopic device 403 is connected to the sixth mounting component 404. In this embodiment, the second telescopic device 403 is an electric cylinder. A seventh mounting component is horizontally arranged above the sixth mounting component 404. The seventh mounting component 406 is slidably connected with the fifth mounting component 402 through the eighth mounting component 407. In this embodiment, preferably, the eighth mounting component 407 is a linear bearing. A third telescopic device 408 is vertically connected to the top of the sixth mounting component 404. The piston rod of the third telescopic device 408 is fixedly connected to the bottom of the seventh mounting component 406. The seventh mounting component 406 can be driven to move up and down along the fifth mounting component 402 through the third telescopic device 408. The distance from the top of the fifth mounting component 402 to the sixth mounting component 404 is greater than the maximum stroke of the third telescopic device 408. In this embodiment, preferably, the third telescopic device 408 is an electric cylinder. A first rotating shaft 40 is vertically arranged at the front end of the seventh mounting component 406. 9. When the first rotating shaft 409 moves forward and backward along the second linear motion component 401 through the seventh mounting component 406 and the fifth mounting component 402, the axes of the first chuck 203 and the second chuck 305 and the axis of the first rotating shaft 409 are always located in the same vertical plane, and within the forward and backward moving range of the first rotating shaft 409, the axis of the first rotating shaft 409 can coincide with the axes of the first chuck 203 and the second chuck 305. The first rotating shaft 409 is rotatably connected to the seventh mounting component 406. The first rotating shaft 409 is a hollow structure. A first joint 410 is connected to the lower end of the first rotating shaft 409. The first joint 410 is connected to a high-pressure gas source through a pipeline. A second switch component is connected to the pipeline through which the first joint 410 is connected to the high-pressure gas source.The second switch component can control the first joint 410 to be connected or disconnected with the high-pressure gas source. In this embodiment, preferably, the first joint 410 is a rotary joint, and the second switch component is an electromagnetic on-off valve. A ninth mounting component 412 is horizontally arranged above the seventh mounting component 406. The ninth mounting component 412 is fixedly connected to the first rotating shaft 409. The top of the ninth mounting component 412 is connected to the second joint 411. The first joint 410 is connected to the second joint 411 through the hollow first rotating shaft 409. A first coating component 413 is horizontally arranged above the ninth mounting component 412. The first coating component 413 is connected to the ninth mounting component 412 through the tenth mounting component 414. The axis of the first coating component 413 is arranged along the radial direction of the first rotating shaft 409. The first coating component 413 is provided with a first material storage part, a first transition part, and a first material discharge part which are connected to each other in sequence from one end to the other end. The end of the first material storage part away from the first material discharge part is communicated with the second joint 411 through a hose. The first material storage part stores adhesive. During coating, the adhesive in the first material storage part can be transported to the first material discharge part by a high-pressure gas source and the adhesive is squeezed out from the front end of the first material discharge part. The seventh mounting component 406 is horizontally connected to the second power device 415. In this embodiment, preferably, the second power device 415 is a servo motor. The output shaft of the second power device 415 is fixedly connected to the first transmission component 416. The bottom of the ninth mounting component 412 is horizontally connected to the second transmission component 417. The first transmission component 416 Meshing with the second transmission component 417, in this embodiment, preferably, the first transmission component 416 is a bevel gear, the second transmission component 417 is an annular rack, the axis of the annular gear is concentric with the axis of the first rotating shaft 409, and the second power device 415 can drive the ninth mounting component 412 to rotate horizontally around the axis of the first rotating shaft 409 through the first transmission component 416 and the second transmission component 417, thereby driving the first coating component 413 to rotate horizontally around the axis of the first rotating shaft 409, and the eleventh mounting component 418 is vertically connected to the bottom of the seventh mounting component 406, and the eleventh mounting component 418 is horizontally connected to the second coating component 419, and the second coating component 419 is provided with a second storage part, a second passing part and a second material storage part connected to each other from one end to the other. The third switch component is connected to the pipeline of the second material storage part connected to the high-pressure gas source, and the third switch component can control the connection or disconnection of the second material storage part and the high-pressure gas source. In this embodiment, preferably, the third switch component is an electromagnetic on-off valve, and the second material storage part stores adhesive. During coating, the high-pressure gas source can be used to transport the adhesive in the second material storage part to the second material discharge part and squeeze the adhesive out of the front end of the second material discharge part. The maximum rotation radius of the ninth mounting component 412 is not greater than the bottom hole radius of the internal thread of the cover body, and the vertical distance from the first discharge part of the first coating component 413 to the top of the ninth mounting component 412 is greater than the length of the internal thread of the cover body.When the first rotating shaft 409 moves along the second linear motion component 401 to a position concentric with the first chuck 203 and the second chuck 305, gaps are provided in the horizontal direction between the front end of the first discharge portion of the first coating component 413 and the internal thread of the cover body, and between the front end of the second discharge portion of the second coating component 419 and the external thread of the connecting ring to prevent the front end of the first discharge portion and the front end of the second discharge portion from rubbing against the external thread of the connecting ring when moving up and down. The external thread length of the connecting ring and the internal thread length of the cover body are both smaller than the stroke of the piston rod of the third telescopic device 408. When the piston rods of the first telescopic device 302 and the third telescopic device 408 are fully retracted, the second coating component 413 and the second discharge portion are both retracted. The front end height of the second discharge part of the part 419 is the same as the height of the lower end of the external thread of the connecting ring, the bottom surface height of the first joint 410 is higher than the top surface height of the connecting ring, the highest point height of the first coating part 413 is lower than the bottom surface height of the cover body, and a control cabinet 5 is also provided on one side of the machine 1. An electric control system is installed in the control cabinet 5. A touch screen 6 and a control switch 7 are connected to the panel of the control cabinet 5. The first power device 201, the second power device 415, the first telescopic device 302, the third telescopic device 408, the first chuck 203, the second chuck 305, the first switch component, the second switch component, the third switch component, the first detection component 307, and the first adjustment component are all electrically connected to the electric control system.

[0050] This embodiment also provides a process for assembling a threaded cover assembly using the threaded cover assembly automatic device, comprising the following steps:

[0051] The first step is to select a concentricity check rod, so that the first chuck 203 and the second chuck 305 clamp the two ends of the check rod respectively, and then use a laser centering instrument or a concentricity detector to detect the concentricity of the first chuck 203 and the second chuck 305. If the concentricity of the first chuck 203 and the second chuck 305 does not meet the requirements, adjust the first chuck 203 or the second chuck 305 until the concentricity of the first chuck 203 and the second chuck 305 meets the requirements;

[0052] The second step is to set the first standby position, clamping position, first coating position, first assembly position, and second assembly position of the second chuck 305 corresponding to the specifications and models of each thread cover assembly, the second standby position and second coating position of the first rotating shaft 409, and the third standby position and third coating position of the seventh mounting component 406 in the electric control system through the touch screen 6;

[0053] The third step, first, select the specification model of the threaded cover assembly to be assembled, put the cover body flat on the first chuck 203, then click the button switch or touch screen 6, the electronic control system controls the piston rod of the first telescopic device 302 to extend, so that the second chuck 305 drops from the first standby position to the set clamping position, and the second claw 311 of the second chuck 305 automatically clamps the cover body. After the clamping is completed, the second chuck 305 drives the cover body to move upward to the set first standby position, then put the connecting ring flat on the first chuck 203 and ensure that all the first claws 204 are inside the connecting ring, then click the button switch or touch screen 6, the electronic control system controls the first claw 204 of the first chuck 203 to clamp the connecting ring from the inside to the outside, and the clamping of the connecting ring and the cover body is completed;

[0054] Step 4: Click the button switch or touch screen 6, the electronic control system controls the piston rod of the second telescopic device 403 to extend, and drives the first rotating shaft 409 to move from the second standby position at the rear side of the machine 1 to the second coating position set at the front side of the machine 1 along the second linear motion component 401 through the fifth mounting component 402, the sixth mounting component 404, and the seventh mounting component 406. At this time, the axis of the first rotating shaft 409 coincides with the axis of the first chuck 203 and the second chuck 305, the piston rod of the third telescopic device 408 is completely retracted, the seventh mounting component 406 is located at the third standby position, the front end of the second discharge portion of the second coating component 419 is the same as the height of the lower end of the external thread of the connecting ring, and then the electronic control system controls the piston rod of the first telescopic device 302 to extend, so that the second chuck 305 is lowered from the first standby position to the first coating position. At this time, the front end of the first discharge portion of the first coating component 413 is the same as the height of the lower end of the internal thread of the cover body;

[0055] In the fifth step, the electronic control system controls the first power device 201 and the second power device 415 to start, and the first power device 201 and the second power device 415 respectively drive the first chuck 203 and the ninth mounting component 412 to start rotating at the same time, and the first chuck 203 and the ninth mounting component 412 have the same rotation speed, and the second switch component and the third switch component are turned on at the same time, and the high-pressure gas source enters the first storage part of the first coating component 413 and the second storage part of the second coating component 419 respectively, and the adhesive is squeezed out from the first discharge part of the first coating component 413 and the second discharge part of the second coating component 419 and is respectively coated in the thread grooves of the internal thread of the cover body and the external thread of the connecting ring.

[0056] When the first chuck 203 and the ninth mounting component 412 start to rotate, the electronic control system controls the piston rod of the third telescopic device 408 to extend at a uniform speed, so that the seventh mounting component 406 moves upward at a uniform speed from the third standby position, and drives the first coating component 413 and the second coating component 419 to move upward along the fifth mounting component 402 at the same time through the seventh mounting component 406. The extension speed of the piston rod of the third telescopic device 408 matches the rotation speed of the first chuck 203 and the ninth mounting component 412, that is, every time the first chuck 203 and the ninth mounting component 412 rotate one circle, the piston rod of the third telescopic device 408 can drive the first coating component 413 and the second coating component 419 to rise to the same height at a uniform speed, and the height to which the first coating component 413 and the second coating component 419 are raised by the third telescopic device 408 is the same as the external thread pitch of the connecting ring and the internal thread pitch of the cover body, until the seventh mounting component 406 moves upward from the third standby position to the third coating position, at which time the first coating component 413 and the second coating component 419 are The adhesive coating is completed in all the thread grooves of the internal thread of the cover body and the external thread of the connecting ring, and then the electronic control system controls the first power device 201 and the second power device 415 to stop working, the first chuck 203 and the ninth installation component 412 stop rotating, the second switch component and the third switch component are closed, and the first coating component 413 and the second coating component 419 stop extruding the adhesive outward. Then the electronic control system controls the piston rod of the first telescopic device 302 and the piston rod of the third telescopic device 408 to retract at the same time, so that the second chuck 305 moves upward from the first coating position to the first standby position, and the seventh installation component 406 moves downward from the third coating position to the third standby position. At this time, the cover body is located above the first coating component 413. Then the electronic control system controls the piston rod of the second telescopic device 403 to retract, so that the sixth installation component 404 and the seventh installation component 406 drive the first rotating shaft 409 to move from the second coating position to the second standby position at the rear side of the machine 1, thereby making the coating device 4 away from the first chuck 203 and the second chuck 305;

[0057] In the sixth step, the electric control system controls the piston rod of the first telescopic device 302 to extend rapidly, so that the second chuck 305 drops rapidly from the first standby position to the first assembly position. At this time, the bottom of the cover body is completely fitted with the top of the connecting ring, and the first switch component connects the vent hole of the first elastic component 306 with the external normal pressure environment. Then, the electric control system controls the piston rod of the first telescopic device 302 to extend slowly. At this time, as the piston rod of the first telescopic device 302 extends, the overall length of the first elastic device gradually decreases until the piston rod of the first telescopic device 302 extends to the set length and stops extending. At this time, the overall length of the first elastic component 306 is greater than the minimum overall length of the first elastic component 306. Since the vent hole of the first elastic component 306 is connected to the external normal pressure environment, the first elastic component 306 does not generate elastic force, and the first elastic component 306 and the cover body are both supported by the connecting ring, so the value of the first detection component 307 is zero. Then the electronic control system controls the first switch component to switch the passage so that the vent hole of the first elastic component 306 is connected to the high-pressure gas source. With the introduction of the high-pressure gas source, the elastic force of the first elastic component 306 and the value of the first detection component 307 gradually increase. The electronic control system automatically adjusts the pressure of the high-pressure gas source entering the first elastic component 306 through the first adjustment component, so that the value of the first detection component 307 meets the requirement and avoids excessive pressure. The cover body is damaged. When the value of the first detection component 307 stabilizes, the electronic control system controls the first power device 201 to start, and drives the connecting ring to rotate in the screw-in direction through the first chuck 203. Since the first elastic component 306 applies pressure to the cover body, the external thread of the connecting ring is buckled into the internal thread of the cover body during the rotation of the first chuck 203. Then, as the first chuck 203 continues to rotate, the external thread of the connecting ring is gradually screwed into the internal thread of the cover body. During the process of the external thread of the connecting ring being screwed into the internal thread of the cover body, the cover body continues to move downward, the overall length of the first elastic component 306 continues to increase, and the value of the first detection component 307 gradually decreases. When When the value of the first detection component 307 drops to the set value, the electric system controls the piston rod of the first telescopic device 302 to start extending at a uniform speed. The extension speed of the piston rod of the first telescopic device 302 is the same as the descending speed of the cover body. At this time, the overall length of the first elastic component 306 is less than the maximum overall length of the first elastic component 306 to prevent the cover body from bearing the tension of the connecting ring, causing the cover body to fall off from the second chuck 305 or causing damage to the first detection component 307 and the first elastic component 306, until the second chuck 305 drops from the first assembly position to the second assembly position, the first power device 201 stops working, and the external thread of the connecting ring is completely screwed into the internal thread of the cover body;

[0058] Step 7: The electric control system first controls the second chuck 305 to loosen the cover body, and the first telescopic device 302 drives the second chuck 305 to move upward to the first standby position, and then controls the first chuck 203 to loosen the connecting ring, and the assembler takes away the threaded cover assembly, completing the assembly of the threaded cover assembly;

[0059] Step 8. Repeat steps 1 to 7 to quickly complete the assembly of the threaded cover assembly.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic assembly device for a threaded cover assembly, characterized in that: The invention comprises a machine platform (1), wherein the machine platform (1) is respectively connected with a first clamping device (2), a second clamping device (3), and a coating device (4); the first clamping device (2) comprises a first rotating platform (202), a first chuck (203), and a first power device (201); the second clamping device (3) comprises a first mounting component (301), a first telescopic device (302), a second chuck (305), and a floating mechanism; the first rotating platform (202) and the first mounting component (301) are respectively connected to the machine platform (1); the first chuck (203) is connected to the first rotating platform (202); the first power device (201) is power-connected to the first rotating platform (202); the first telescopic device (302) is connected to the first mounting component (301); the second chuck (305) is connected to the first telescopic device (302) via the floating mechanism; the first chuck (203) and the second chuck (305) are concentric.

2. The automatic assembly equipment for threaded cover components according to claim 1, characterized in that: The first telescopic device (302) is connected to a second mounting component (303), the floating mechanism comprises a first elastic component (306), and the second chuck (305) is connected to the second mounting component (303) via the first elastic component (306).

3. The automatic assembly equipment for threaded cover components according to claim 2, characterized in that: The floating mechanism further comprises a first detection component (307), the first detection component (307) is connected to the second mounting component (303), and the first elastic component (306) is respectively connected to the first detection component (307) and the second chuck (305).

4. The automatic assembly equipment for threaded cover components according to claim 2, characterized in that: The floating mechanism further comprises a third mounting component (308), wherein the third mounting component (308) is connected to the second chuck (305), and the third mounting component (308) is slidably connected to the second mounting component (303) via a fourth mounting component (309).

5. The automatic assembly equipment for threaded cover components according to claim 2, characterized in that: The first installation component (301) is connected to a first linear motion component (304), and the second installation component (303) is slidably connected to the first linear motion component (304) via a sliding block.

6. The automatic assembly equipment for threaded cover components according to claim 1, characterized in that: The second chuck (305) is connected to a second clamping jaw (311), and the second clamping jaw (311) is connected to a profiling fixture (312).

7. The automatic assembly equipment for threaded cover components according to claim 1, characterized in that: The coating device (4) comprises a sixth mounting component (404) connected to the machine platform (1); the sixth mounting component (404) is connected to a third telescopic device (408); the third telescopic device (408) is connected to a seventh mounting component (406); the seventh mounting component (406) is rotatably connected to a first rotating shaft (409); the first rotating shaft (409) is connected to a ninth mounting component (412); the ninth mounting component (412) is respectively connected to a first coating component (413) and a second transmission component (417); the seventh mounting component (406) is respectively connected to a second coating component (419) and a second power device (415); the second power device (415) is transmission-connected to the second transmission component (417) via the first transmission component (416).

8. The automatic assembly equipment for threaded cover components according to claim 7, characterized in that: The coating device (4) comprises a second linear motion component (401) and a second telescopic device (403); the second linear motion component (401) is connected to the machine platform (1); the sixth mounting component (404) is slidably connected to the second linear motion component (401) via the fifth mounting component (402); the seventh mounting component (406) is slidably connected to the fifth mounting component (402) via the eighth mounting component; and the second telescopic device (403) is respectively connected to the machine platform (1) and the sixth mounting component (404).

9. The automatic assembly equipment for threaded cover components according to claim 7, characterized in that: The first rotating shaft (409) is concentric with the first chuck (203) and the second chuck (305).

10. An assembly process of a threaded cover assembly, used for assembling a threaded cover assembly by the threaded cover assembly automatic assembly device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The first step is to use a concentricity check rod, a laser centering instrument or a concentricity detector to check the concentricity of the first chuck (203) and the second chuck (305). If the concentricity of the first chuck (203) and the second chuck (305) does not meet the requirements, the first chuck (203) and the second chuck (305) are adjusted until the concentricity of the two meets the requirements; The second step is to set the first standby position, clamping position, first coating position, first assembly position, and second assembly position of the second chuck (305) corresponding to the specifications and models of each threaded cover assembly, the second standby position and second coating position of the first rotating shaft (409), and the third standby position and third coating position of the seventh mounting component (406) in the electric control system; The third step is to select the specification and model of the threaded cover assembly to be assembled, and place the cover body flat on the first chuck (203). The electric control system controls the piston rod of the first telescopic device (302) to extend, so that the second chuck (305) is lowered from the first standby position to the set clamping position. The second clamping claw (311) of the second chuck (305) automatically clamps the cover body. After the clamping is completed, the second chuck (305) drives the cover body to move upward to the set first standby position. Then, the connecting ring is placed flat on the first chuck (203) and it is ensured that all the first clamping claws (204) are inside the connecting ring. Then, the electric control system controls the first clamping claws (204) of the first chuck (203) to clamp the connecting ring from the inside to the outside, thereby completing the clamping of the connecting ring and the cover body. In the fourth step, the electric control system controls the piston rod of the second telescopic device (403) to extend, driving the first rotating shaft (409) to move along the second linear motion component (401) from the second standby position at the rear side of the machine (1) to the second coating position set at the front side of the machine (1). At this time, the axis of the first rotating shaft (409) coincides with the axis of the first chuck (203) and the second chuck (305). The piston rod of the third telescopic device (408) is completely retracted, and the seventh mounting component (406) is located at the third standby position. The height of the front end of the second discharge portion of the second coating component (419) is the same as the height of the lower end of the external thread of the connecting ring. Then, the electric control system controls the piston rod of the first telescopic device (302) to extend, so that the second chuck (305) descends from the first standby position to the first coating position. At this time, the height of the front end of the first discharge portion of the first coating component (413) is the same as the height of the lower end of the internal thread of the cover body. In the fifth step, the electronic control system controls the first power device (201) and the second power device (415) to start, and the first power device (201) and the second power device (415) respectively drive the first chuck (203) and the ninth installation component (412) to start rotating at the same time, and the rotation speed of the first chuck (203) and the ninth installation component (412) is the same. At the same time, the second switch component and the third switch component are turned on at the same time, and the high-pressure gas source squeezes out the adhesive in the first coating component (413) and the second coating component (419) and coats them in the thread grooves of the internal thread of the cover body and the external thread of the connecting ring. At the same time as the first chuck (203) and the ninth installation component (412) start rotating, the electronic control system controls the third telescopic device The piston rod of the third telescopic device (408) is extended at a uniform speed, so that the seventh mounting component (406) moves upward at a uniform speed from the third standby position, and the first coating component (413) and the second coating component (419) are driven by the seventh mounting component (406) to move upward along the fifth mounting component (402) at the same time. The extension speed of the piston rod of the third telescopic device (408) matches the rotation speed of the first chuck (203) and the ninth mounting component (412), that is, every time the first chuck (203) and the ninth mounting component (412) rotate one circle, the piston rod of the third telescopic device (408) can drive the first coating component (413) and the second coating component (419) to rise to the same height at a uniform speed, and the third telescopic device (408) drives the first coating component (413) and the second coating component (419) to move upward along the fifth mounting component (402) at the same time. The height to which the seventh mounting component (406) rises is the same as the pitch of the external thread of the connecting ring and the pitch of the internal thread of the cover body, until the seventh mounting component (406) moves upward from the third standby position to the third coating position, at which time the first coating component (413) and the second coating component (419) complete the adhesive coating of all the thread grooves of the internal thread of the cover body and the external thread of the connecting ring, and then the electronic control system controls the first power device (201) and the second power device (415) to stop working, the first chuck (203) and the ninth mounting component (412) to stop rotating, the second switch component and the third switch component are closed, and the first coating component (413) and the second coating component (419) stop extruding adhesive outward. The coating is connected to the coating agent, and then the electric control system controls the piston rod of the first telescopic device (302) and the piston rod of the third telescopic device (408) to retract simultaneously, so that the second chuck (305) moves upward from the first coating position to the first standby position, and the seventh mounting component (406) moves downward from the third coating position to the third standby position. At this time, the cover body is located above the first coating component (413). Then the electric control system controls the piston rod of the second telescopic device (403) to retract, so that the sixth mounting component (404) and the seventh mounting component (406) drive the first rotating shaft (409) to move from the second coating position to the second standby position at the rear side of the machine (1), thereby moving the coating device (4) away from the first chuck (203) and the second chuck (305); In the sixth step, the electric control system controls the piston rod of the first telescopic device (302) to extend rapidly, so that the second chuck (305) quickly drops from the first standby position to the first assembly position. At this time, the bottom of the cover body is completely fitted with the top of the connecting ring, and the first switch component connects the vent hole of the first elastic component (306) to the external normal pressure environment. Then, the electric control system controls the piston rod of the first telescopic device (302) to extend slowly. At this time, as the piston rod of the first telescopic device (302) extends, the overall length of the first elastic device gradually decreases until the piston rod of the first telescopic device (302) extends to the set length and stops extending. At this time, the overall length of the first elastic component (306) is greater than the minimum overall length of the first elastic component (306). Since the vent hole of the first elastic component (306) is connected to the external normal pressure environment, the first elastic component (306) does not generate elastic force, and the first elastic component (306) and the cover body are both supported by the connecting ring, so the value of the first detection component (307) is zero. Then the electronic control system controls the first switch component to switch the path so that the vent hole of the first elastic component (306) is connected to the high-pressure gas source. As the high-pressure gas source is introduced, the elastic force of the first elastic component (306) and the value of the first detection component (307) gradually increase. The electronic control system automatically adjusts the pressure of the high-pressure gas source entering the first elastic component (306) through the first adjustment component so that the value of the first detection component (307) meets the requirement, thereby avoiding excessive pressure. When the cover body is damaged, when the value of the first detection component (307) stabilizes, the electronic control system controls the first power device (201) to start, and drives the connecting ring to start rotating in the screw-in direction through the first chuck (203). Since the first elastic component (306) applies pressure to the cover body, during the rotation of the first chuck (203), the external thread of the connecting ring is buckled into the internal thread of the cover body. Then, as the first chuck (203) continues to rotate, the external thread of the connecting ring is gradually screwed into the internal thread of the cover body. During the process of the external thread of the connecting ring being screwed into the internal thread of the cover body, the cover body continues to move downward, the overall length of the first elastic component (306) continues to increase, and the value of the first detection component (307) gradually decreases. When the first detection component (306) is damaged, the first power device (201) starts to start, and the connecting ring starts to rotate in the screw-in direction. Since the first elastic component (306) applies pressure to the cover body, the external thread of the connecting ring is buckled into the internal thread of the cover body. When the value of the measuring component (307) drops to a set value, the electric system controls the piston rod of the first telescopic device (302) to start extending at a uniform speed. The extension speed of the piston rod of the first telescopic device (302) is the same as the descending speed of the cover body. At this time, the overall length of the first elastic component (306) is less than the maximum overall length of the first elastic component (306) to prevent the cover body from bearing the pulling force of the connecting ring, causing the cover body to fall off the second chuck (305) or causing damage to the first measuring component (307) and the first elastic component (306). When the second chuck (305) descends from the first assembly position to the second assembly position, the first power device (201) stops working, and the external thread of the connecting ring is completely screwed into the internal thread of the cover body. In the seventh step, the electric control system first controls the second chuck (305) to loosen the cover body, and the first telescopic device (302) drives the second chuck (305) to move upward to the first standby position, and then controls the first chuck (203) to loosen the connecting ring, and the assembler takes away the threaded cover assembly, thereby completing the assembly of the threaded cover assembly; Step 8. Repeat steps 1 to 7 to quickly complete the assembly of the threaded cover assembly.

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