An automatic end-plug compression device

Abstract

This invention provides an automatic end-plug compression device, relating to the field of nuclear fuel rod assembly processing. A compression chamber is formed within the housing. A first chamber and a second chamber are respectively located at both ends of the housing, both communicating with the compression chamber. A first observation window communicating with the compression chamber is provided at the top of the housing. One end of a clamping assembly is located in the first chamber and is detachably connected to the housing. One end of the compression assembly is located in the second chamber and is detachably connected to the housing. A conveying assembly and a displacement assembly are both mounted on the housing, with the lower end of the displacement assembly passing through the first observation window and located within the compression chamber. This compression device, by creating a compression chamber inside the housing, allows the compression operation to take place within the compression chamber, avoiding the risk of personnel being pinched during the compression process. The housing is a single unit; during the compression process, the cladding tube is subjected to axial force, reducing the coaxiality error between the cladding tube and the end plug, controlling the coaxiality within 0.02 mm.

Description

Technical Field

[0001] This invention relates to the field of nuclear fuel rod assembly processing, and more specifically, to an automatic end plug compression device. Background Technology

[0002] Nuclear fuel rods mainly consist of a fuel core and a cladding structure. The fuel cladding, as the first safety barrier of a nuclear reactor, is responsible for containing the fuel core and fission products. Operating in environments with high temperature, high pressure, corrosion, and strong neutron radiation, it is one of the most demanding components in the reactor. End plugs are welded to the ends of the cladding. These end plugs are pressed into the cladding by a plugging device, and then the cladding and end plugs are welded together by a welding device.

[0003] Currently, the industry uses a parallel clamping method for tube clamping devices. The tube clamping is driven by a single cylinder, with the tube clamping tool connected in the middle and the whole thing installed on the table. This installation method has a complex overall structure, the casing is easily deformed under stress, and the accuracy is poor. During the tube clamping process, the end plug and the casing are exposed to the external environment, which poses a risk of pinching and injuring workers. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic end-plug compression device that addresses the shortcomings of existing technologies and solves the problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] An automatic end-plug compression device includes a housing, a clamping assembly, a compression assembly, a conveying assembly, and a displacement assembly;

[0007] The shell has a compression chamber, and a first chamber and a second chamber are respectively provided at both ends of the shell. Both the first chamber and the second chamber are connected to the compression chamber. A first observation window connected to the compression chamber is provided at the top of the shell.

[0008] One end of the clamping assembly is located inside the first cavity and is detachably connected to the housing;

[0009] One end of the plug assembly is located in the second chamber and is detachably connected to the housing;

[0010] Both the delivery assembly and the displacement assembly are mounted on the housing, with the lower end of the displacement assembly passing through the first observation window and located within the compression chamber.

[0011] Furthermore, the clamping assembly includes a first pushing mechanism and a clamping mechanism, wherein a through hole is provided at the axis of the first pushing mechanism; and a clamping hole is provided through the axial direction of the clamping mechanism.

[0012] The first pushing mechanism is connected to the clamping mechanism at one end facing the compression chamber. The first pushing mechanism is used to push the clamping mechanism to move along the length of the first chamber.

[0013] Furthermore, the first pushing mechanism includes a housing, a sliding cavity inside the housing, an opening at one end of the housing, a sealing tube, an annular piston and a pushing sleeve inside the sliding cavity, one end of the sealing tube being located inside the opening and having a gap between it and the opening wall, and the other end of the sealing tube penetrating the housing and being sealed to the housing.

[0014] The push sleeve is installed on one side of the annular piston. Both the push sleeve and the annular piston are sleeved on the sealing tube and are slidably sealed with the sealing tube. The outer peripheral wall of the annular piston is slidably sealed with the cavity wall of the sliding cavity.

[0015] The end of the sleeve that is away from the annular piston is pushed through the opening and connected to the clamping mechanism, and the outer peripheral wall of the sleeve is pushed to slide and seal against the opening wall;

[0016] The outer casing is provided with an air inlet and an air outlet that are connected to the sliding cavity.

[0017] Furthermore, the clamping mechanism includes a fixed sleeve, a clamping sleeve, a chuck, and a fixed cylinder. One end of the fixed sleeve is fixedly connected to the end of the first pushing mechanism near the compression chamber. The clamping sleeve is sleeved on the fixed sleeve and connected to the fixed sleeve.

[0018] The fixed cylinder is sleeved on the clamping sleeve, and one end of the fixed cylinder is rotatably connected to the first pushing mechanism. A limit ring is provided in the inner hole of the other end of the fixed cylinder.

[0019] A clamping groove is provided at the end of the clamping sleeve away from the first pushing mechanism. One end of the chuck is fixedly installed in the clamping groove, and the diameter of the end of the chuck near the limiting ring platform is larger than the inner diameter of the limiting ring platform.

[0020] Furthermore, the plunger assembly includes a second pushing mechanism, a pushing rod, and a first vacuum mechanism. The second pushing mechanism is connected to the housing, and the pushing rod is horizontally disposed in the second chamber and connected to the second pushing mechanism. A vacuum channel is provided inside the pushing rod, and after vacuuming, one end of the channel passes through the peripheral wall of the pushing rod and communicates with the first vacuum mechanism through a hose.

[0021] The end of the push rod away from the second push mechanism has a tooling slot for mounting the tooling, and the tooling slot is connected to the vacuum channel.

[0022] Furthermore, the displacement assembly includes a first displacement mechanism, a second displacement mechanism, a suction head, and a second vacuum mechanism. The first displacement mechanism is mounted on the housing and is located on one side of the first observation window.

[0023] The second displacement mechanism is mounted on the first displacement mechanism and is located above the first observation window;

[0024] The suction head is installed below the second displacement mechanism and connected to the second vacuum mechanism;

[0025] The first displacement mechanism is used to drive the second displacement mechanism to move horizontally, and the second displacement mechanism is used to drive the suction head to move vertically.

[0026] Preferably, a second observation window and a third observation window are respectively provided on two adjacent side walls of the shell side wall where the first observation window is opened, and an avoidance window communicating with the first chamber is provided at the bottom of the shell.

[0027] The housing is equipped with a camera mechanism and a light source mechanism. The light emitted by the light source mechanism shines onto the camera mechanism through the second observation window, the pressure chamber and the third observation window.

[0028] The clamping sleeve is rotatably connected to the fixed sleeve. The fixed sleeve is provided with a rotating assembly, which includes a rotating component and a transmission component. The outer periphery of the rotating component is connected to the first chamber with a gap.

[0029] A power assembly is located at the bottom of the housing, and the power assembly is connected to the transmission components.

[0030] Furthermore, the conveying assembly includes an alignment assembly, a transmission assembly, and a placement box, with the alignment assembly connected to the placement box via the transmission assembly;

[0031] The alignment component is installed on the side of the housing where the second chamber is located;

[0032] The bottom of the box has a drain hole for the end plug to pass through.

[0033] Furthermore, the alignment component includes a base, which has an alignment groove and a mounting cavity. The alignment groove is located above the mounting cavity and communicates with it. The top surface of the alignment groove and the side near the first observation window are both open.

[0034] The mounting cavity is equipped with a transmission mechanism, and the bottom surface of the alignment slot has a groove with an inverted trapezoidal structure in the middle. An alignment component is provided at the end near the first observation window.

[0035] Furthermore, the transmission mechanism includes two double pulleys, two belts, and a drive device. The two double pulleys are rotatably mounted on the cavity walls at both ends of the mounting cavity, and the two belts are spaced apart and sleeved on the two double pulleys.

[0036] The drive unit is mounted on the base, and its output end passes through the base and is fixedly connected to one of the double pulleys.

[0037] The present invention has at least the following advantages or beneficial effects:

[0038] 1. This application provides an automatic end-plug compression device. An end-plug is conveyed to a displacement component via a conveying assembly, then moved by the displacement component to the compression chamber and fixed at the end of the compression assembly. One end of the casing tube passes through a clamping assembly and is located inside the compression chamber. The clamping assembly fixes the casing tube. Finally, the compression assembly drives the end-plug to move rapidly towards the end of the casing tube, pressing the end-plug into the casing tube. This compression device, by creating a compression chamber inside the casing, allows the compression operation to take place within the compression chamber, avoiding the risk of operator injury during the compression process.

[0039] 2. The shell provided in this application is an integral piece. During the compression process, the shell tube is subjected to axial force, which avoids deformation of the shell tube and reduces the coaxiality error between the shell tube and the end plug, controlling the coaxiality within 0.02mm.

[0040] 3. This plugging device modularizes multiple structures, namely, the housing, clamping assembly, plugging assembly, conveying assembly and displacement assembly are all individual units. They can be accurately assembled through the corresponding chambers and / or threaded holes on the housing, which facilitates the subsequent installation, debugging, maintenance and tooling replacement work of the staff. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the structure of an automatic end plug pressing device provided by the present invention;

[0043] Figure 2 This is a top view of an automatic end-plug compression device provided by the present invention;

[0044] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0045] Figure 4 A front view of an automatic end-plug compression device provided by the present invention;

[0046] Figure 5 for Figure 1 Enlarged view of point I in the middle;

[0047] Figure 6 A schematic diagram of the structure of the plug assembly provided by the present invention installed in the second chamber;

[0048] Figure 7A schematic diagram of the clamping assembly provided by the present invention installed in the first chamber.

[0049] Icons: 100-Housing; 101-Plug chamber; 102-First chamber; 103-Second chamber; 104-First observation window; 105-Second observation window; 106-Third observation window; 107-Avoidance window; 108-Camera mechanism; 109-Light source mechanism; 110-Clamping assembly; 111-First pushing mechanism; 112-Clamping mechanism; 113-Housing shell; 114-Sliding cavity; 115-Sealing tube; 116-Annular piston; 117-Pushing sleeve; 118-Fixing sleeve; 119-Clamping sleeve; 120-Chuck; 121-Fixing cylinder; 122-Limiting ring platform; 123-Fixing ring seat; 124-Rotating component; 125-Transmission component; 1 26-Clamping groove; 130-Plug assembly; 131-Second pushing mechanism; 132-Push rod; 134-Push rod; 135-Guide sleeve; 136-Force sensor; 137-Vacuum channel; 138-Tooling groove; 150-Conveying assembly; 151-Alignment assembly; 152-Transmission assembly; 153-Placement box; 154-Base; 155-Alignment groove; 156-Mounting cavity; 157-Groove; 158-Alignment component; 159-Double pulley; 160-Belt; 161-Drive device; 170-Displacement assembly; 171-First displacement mechanism; 172-Second displacement mechanism; 173-Suction head; 174-First telescopic device; 175-Sliding component. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Please refer to Figure 1 and Figure 3As shown, an automatic end-plug compression device includes a housing 100, a clamping assembly 110, a compression assembly 130, a conveying assembly 150, and a displacement assembly 170. A compression chamber 101 is formed within the housing 100, and a first observation window 104 communicating with the compression chamber 101 is formed at the top of the housing 100. The conveying assembly 150 and the displacement assembly 170 are both mounted on the housing 100. The conveying assembly 150 conveys the end plug to the lower part of the displacement assembly 170. The lower end of the displacement assembly 170 passes through the first observation window 104 and is located within the compression chamber 101, thus inserting the end plug into the compression chamber 101. A first chamber 102 and a second chamber 103 are respectively provided at both ends of the housing 100, and both the first chamber 102 and the second chamber 103 communicate with the compression chamber 101. One end of the clamping assembly 110 is located in the first chamber 102 and is connected to the housing 100 via a screw. The clamping assembly 110 is used to fix the casing tube. One end of the plugging assembly 130 is located in the second chamber 103 and is detachably connected to the housing 100. The end of the plugging assembly 130 near the clamping assembly 110 can move toward the clamping assembly 110.

[0052] The working process of an automatic end-plug compression device is as follows: The conveying assembly 150 conveys the end plug to the displacement assembly 170. The displacement assembly 170 moves, causing the end plug to enter the compression chamber 101 through the first observation window 104. The compression assembly 130 operates, with one end of the compression assembly 130 near the clamping assembly 110 fixedly connected to one end of the end plug. The casing tube is conveyed from the side of the housing 100 where the clamping assembly 110 is installed to the compression chamber 101 by an external casing tube conveying device. At this time, the clamping assembly 110 operates, clamping and fixing the casing tube, with the casing tube and the end plug located on the same axis. Then, the end of the compression assembly 130 with the end plug installed moves rapidly towards the casing tube, pressing the end of the end plug into the casing tube. The compression chamber 101 is located inside the housing 100; that is, the operation of the compression assembly 130 pressing the end plug into the casing tube is completed inside the housing 100, avoiding the risk of employee injury. In addition, the shell 100 is made by molding process and is integrally formed. The part of the shell tube located in the compression chamber 101 is short. During the compression process, the shell tube will not deform, which improves the compression accuracy and keeps the coaxiality within 0.02mm.

[0053] Please refer to Figure 1 and Figure 7As shown, the clamping assembly 110 includes a first pushing mechanism 111 and a clamping mechanism 112. The first pushing mechanism 111 has a through hole along its axis for the casing tube to pass through. The clamping mechanism 112 has a clamping hole along its axis for the casing tube to pass through. One end of the first pushing mechanism 111 facing the compression chamber 101 is connected to the clamping mechanism 112. The first pushing mechanism 111 pushes the clamping mechanism 112 to move along the length of the first chamber 102. By compressing the clamping mechanism 112, the clamping mechanism 112 is tightly fitted against the peripheral wall of the casing tube, thereby forming a clamp.

[0054] Specifically, the first pushing mechanism 111 includes a housing 113, within which a sliding cavity 114 is provided, and one end of the housing 113 has an opening. The sliding cavity 114 contains a sealing tube 115, an annular piston 116, and a pushing sleeve 117. One end of the sealing tube 115 is located within the opening, with a gap between it and the opening wall; the other end of the sealing tube 115 passes through the housing 113 and is sealed to it. The pushing sleeve 117 is mounted on one side of the annular piston 116, and both the pushing sleeve 117 and the annular piston 116 are fitted onto the sealing tube 115 and are slidably sealed to it. The outer peripheral wall of the annular piston 116 is slidably sealed to the cavity wall of the sliding cavity 114. The end of the pushing sleeve 117 away from the annular piston 116 passes through the opening and connects to the clamping mechanism 112; the outer peripheral wall of the pushing sleeve 117 is slidably sealed to the opening wall. The housing 113 has an air inlet and an air outlet communicating with the sliding cavity 114. The working principle of the first pushing mechanism 111 is the same as that of existing cylinders, both using internal air pressure to drive the piston. Furthermore, the sealing method of the first pushing mechanism 111 can adopt the sealing method of existing cylinders. The difference between the first pushing mechanism 111 and existing cylinders is that a through hole is provided along the axial direction of the first pushing mechanism 111. A sealing tube 115 isolates the internal and external environments of the outer casing 113, ensuring the normal operation of the first pushing mechanism 111 while also allowing the casing tube to pass through it.

[0055] Furthermore, the clamping mechanism 112 includes a fixed sleeve 118, a clamping sleeve 119, a chuck 120, and a fixed cylinder 121. One end of the fixed sleeve 118 is fixedly connected to the end of the first pushing mechanism 111 near the compression chamber 101, and the clamping sleeve 119 is sleeved on the fixed sleeve 118 and connected to the fixed sleeve 118.

[0056] The fixed cylinder 121 is sleeved on the clamping sleeve 119, and a fixed ring seat 123 is slidably connected to one end of the fixed cylinder 121. The fixed ring seat 123 is connected to the first pushing mechanism 111 through a screw, which restricts the end of the fixed cylinder 121 between the fixed ring seat 123 and the first pushing mechanism 111, so that the fixed cylinder 121 is rotatably connected to the first pushing mechanism 111. A limit ring platform 122 is provided in the inner hole of the other end of the fixed cylinder 121.

[0057] A clamping groove 126 is provided at the end of the clamping sleeve 119 away from the first pushing mechanism 111, and one end of the chuck 120 is fixedly installed in the clamping groove 126. The chuck 120 has a frustum structure, and the peripheral wall of the chuck 120 fits against the groove wall of the clamping groove 126. The chuck 120 can be a readily available rubber chuck, such as the rubber chuck produced by Suzhou Kuma Intelligent Manufacturing Engineering Technology Co., Ltd.

[0058] The casing tube is transported by external equipment, and its end passes through the first pushing mechanism 111 and the clamping mechanism 112 and is located in the compression chamber 101. Then the first pushing mechanism 111 operates, pushing the clamping mechanism 112 to move towards the compression chamber 101. When the end of the clamp 120 away from the first pushing mechanism 111 abuts against the side wall of the limiting ring platform 122, the clamping sleeve 119 continues to move a distance towards the compression chamber 101. The groove wall of the clamping groove 126 and the side wall of the limiting ring platform 122 together squeeze the clamp 120, making the inner diameter of the clamp 120 smaller, so that it fits tightly against the peripheral wall of the casing tube, thereby achieving clamping and fixing of the casing tube.

[0059] Please refer to Figures 1 to 3 As shown, the conveying assembly 150 includes an alignment assembly 151, a transmission assembly 152, and a placement box 153. The alignment assembly 151 is connected to the placement box 153 via the transmission assembly 152.

[0060] Specifically, the placement box 153 is used to place the end plug, and the bottom of the placement box 153 is provided with a drain hole for the end plug to pass through. One end of the transmission assembly 152 is located below the drain hole.

[0061] The transfer assembly 152 is used to transport the end plugs falling from the drain hole onto the alignment assembly 151. The transfer assembly 152 is a conventional partitioned conveyor belt device, with partitions spaced apart on the surface of the conveyor belt and baffles on both sides of the conveyor belt. The spacing between adjacent partitions is slightly larger than the maximum diameter of the end plug, and the partitions enhance the transfer performance of the transfer assembly 152 and control the orientation of the end plugs.

[0062] Furthermore, the alignment assembly 151 is installed on the side of the housing 100 where the second chamber 103 is formed. Specifically, the alignment assembly 151 includes a base 154. The base 154 has an alignment groove 155 and a mounting cavity 156. The alignment groove 155 is located above the mounting cavity 156 and communicates with the mounting cavity 156. The top surface and the side near the first observation window 104 of the alignment groove 155 are both open. The bottom surface of the alignment groove 155 has a groove 157 with an inverted trapezoidal structure in the middle. An alignment member 158 is fixedly connected to the end near the first observation window 104. The top surface of the alignment member 158 is flat, the side wall of the alignment member 158 near the groove 157 is inclined, and the side of the alignment member 158 away from the groove 157 is higher than the groove surface of the alignment groove 155. The alignment groove 155 on the side of the alignment member 158 away from the groove 157 is used to place the end plug.

[0063] A transmission mechanism is provided within the mounting cavity 156. This mechanism includes two double pulleys 159, two belts 160, and a drive unit 161. The two double pulleys 159 are rotatably mounted on the cavity walls at both ends of the mounting cavity 156. The two belts 160 are spaced apart and fitted onto the two double pulleys 159, with their upper parts positioned within a aligning groove 155 and a certain gap between them and the groove surface. The distance between the two belts 160 is less than the maximum diameter of the end plug and greater than the minimum diameter of the end plug. Preferably, the belts 160 are round belts. The drive unit 161 is a conventional stepper motor, mounted on a base 154, with its output end passing through the base 154 and fixedly connected to one of the double pulleys 159.

[0064] The operator places at least one end plug into the placement box 153. The end plug falls through a hole at the bottom of the placement box 153 between two partitions. The transmission assembly 152 operates, moving the end plug until it falls onto two belts 160. The end plug makes linear contact with the belts 160, with the smaller diameter end passing through the gap between the two belts 160 and contacting the groove surface of the alignment groove 155. The drive unit 161 operates, driving the belts 160 via the connected double pulleys 159. The movement of the belts 160 moves the end plug toward the direction of the first observation window 104. When the end plug moves above the groove 157, the portion of the end plug below the belt 160 separates from the groove surface of the alignment groove 155, at which point the end plug is placed vertically on the belt 160. When the lower end of the end plug overlaps with the groove wall of the groove 157, the end plug rotates as it moves, with its larger diameter end gradually rotating toward the direction of the first observation window 104. When the end plug is on the top surface of the aligner 158, the end plug is in a horizontal state. Eventually, the end plug falls onto the side of the aligner 158 near the first observation window 104. At this time, the end of the aligner 158 abuts against the end plug, thereby limiting the end plug.

[0065] Please refer to Figure 4and Figure 5 As shown, the displacement assembly 170 includes a first displacement mechanism 171, a second displacement mechanism 172, a suction head 173, and a second vacuum mechanism. The first displacement mechanism 171 includes a first telescopic device 174 and a sliding member 175. Both the first telescopic device 174 and the sliding member 175 are mounted on the housing 100 and located on one side of the first observation window 104. The sliding member 175 is a conventional slide rail, including a guide rail and a slider. The first telescopic device 174 is a conventional telescopic cylinder, and the slider is fixedly connected to one end of the first telescopic device 174. A Z-shaped bracket is provided on the slider. The second displacement mechanism 172 is mounted on the Z-shaped bracket and located above the first observation window 104. The second displacement mechanism 172 is also a conventional telescopic cylinder. The suction head 173 is mounted below the second displacement mechanism 172 and connected to the second vacuum mechanism. The first displacement mechanism 171 is used to drive the second displacement mechanism 172 to move horizontally, and the second displacement mechanism 172 is used to drive the suction head 173 to move vertically.

[0066] After the end plug is positioned at the end of the alignment member 158, the second displacement mechanism 172 retracts, causing the suction head 173 to move upward to the height of the end plug. Then, the first displacement mechanism 171 retracts, bringing the suction head 173 into contact with the end plug. The second vacuum mechanism operates, using negative pressure to adhere the end plug to the suction head 173. Subsequently, the first displacement mechanism 171 extends, positioning the end plug within the range of the first observation window 104; the second displacement mechanism 172 extends, sending the end plug into the compression chamber 101. Finally, the first displacement mechanism 171 extends and retracts, bringing the end of the end plug into contact with the end of the compression assembly 130 near the compression chamber 101.

[0067] Please refer to Figure 6 and Figure 7As shown, the plug assembly 130 includes a second pushing mechanism 131, a pushing rod 132, and a first vacuum mechanism. The second pushing mechanism 131 is a conventional telescopic cylinder, and it is connected to the housing 100. The pushing rod 132 includes a T-shaped push rod 134, a guide sleeve 135, and a force sensor 136. The push rod 132 is horizontally disposed within the second chamber 103, and the guide sleeve 135 is slidably sleeved on the push rod 134 and fixedly connected to the wall of the second chamber 103. The force sensor 136 is mounted on the end of the push rod 134 away from the plug chamber 101 via a screw. The force sensor 136 is fixedly connected to the end of the second pushing mechanism 131 near the push rod 134. The force sensor 136 is a prior art device, such as the DJWX-52 miniature force sensor from Shanghai Dijia Sensing Technology Co., Ltd., and its structure will not be described in detail here. The push rod 134 has a vacuum channel 137 inside. One end of the vacuum channel 137 passes through the peripheral wall of the push rod 134 and is connected to the first vacuum mechanism through a hose. The end of the push rod 134 away from the second push mechanism 131 has a tooling groove 138 for installing tooling. The tooling groove 138 is connected to the vacuum channel 137.

[0068] The end plug is moved into the compression chamber 101 by the displacement assembly 170, with one end of the end plug abutting against the end of the tooling. The first vacuum mechanism operates, creating a negative pressure at the end of the tooling through the hose and vacuum channel 137, thereby adsorbing the end plug onto the tooling. Subsequently, the second vacuum mechanism stops operating, and the first displacement mechanism 171 and the second displacement mechanism 172 operate, driving the suction head 173 to rise and move to the outside of the compression chamber 101. Finally, the second pushing mechanism 131 operates, driving the end plug to move rapidly towards the casing tube, thereby pressing one end of the end plug into the casing tube.

[0069] The main components of this plugging device consist of four parts: a housing 100, a clamping assembly 110, a plugging assembly 130, and a conveying assembly 150. When changing the chuck 120 or tooling, operators only need to remove the corresponding clamping assembly 110 or plugging assembly 130 from the housing 100 for replacement. Furthermore, both the clamping assembly 110 and the plugging assembly 130 fit tightly to the housing 100; during later maintenance, operators only need to use bolts to install the clamping assembly 110 and the plugging assembly 130 back onto the housing 100. This ensures precision while saving operators' debugging time.

[0070] Please refer to this again. Figure 1 , Figure 3 and Figure 7 As shown, a second observation window 105 and a third observation window 106 are respectively provided on two side walls adjacent to the side wall of the housing 100 where the first observation window 104 is provided, and an avoidance window 107 communicating with the first chamber 102 is provided at the bottom of the housing 100.

[0071] like Figure 2 As shown, a camera mechanism 108 and a light source mechanism 109 are provided on the housing 100. The light emitted by the light source mechanism 109 is irradiated onto the camera mechanism 108 through the second observation window 105, the compression chamber 101 and the third observation window 106. Both the camera mechanism 108 and the light source mechanism 109 adopt the camera mechanism and light source mechanism used in existing compression devices.

[0072] The clamping sleeve 119 is rotatably connected to the fixed sleeve 118. Specifically, a bearing is interference-fitted inside the clamping sleeve 119, and a shaft stop is fixedly connected to the fixed sleeve 118. The bearing is sleeved on the fixed sleeve 118, and its inner ring is fixedly connected to the shaft stop. A rotating assembly is provided on the fixed cylinder 121, which includes a rotating component 124 and a transmission component 125. Both the rotating component 124 and the transmission component 125 are sleeved on the fixed cylinder 121 and fixedly connected to it. The diameter of the transmission component 125 is smaller than the diameter of the rotating component 124. The rotating component 124 is also a bearing, and its outer circumference is gap-connected to the cavity wall of the first chamber 102. The clamping sleeve 119 is slidably installed inside the fixed cylinder 121.

[0073] A power assembly is disposed below the housing 100. The power assembly includes a drive motor, a reducer, and a transmission wheel. The transmission wheel is mounted on the output end of the drive motor via the reducer, and the transmission wheel is connected to the transmission component 125. In this embodiment, both the transmission wheel and the transmission component 125 are belt pulleys, and the transmission wheel and the transmission component 125 are connected by a belt.

[0074] After the end plug is pressed into the casing tube, the drive motor runs, driving the transmission component 125 to rotate via the transmission wheel. The transmission component 125 then drives the fixed cylinder 121 to rotate. Because the first pushing mechanism 111 pushes the clamp 120, causing the clamp 120 to press against the limiting ring 122, the friction between the clamp 120 and the limiting ring 122 increases. As the fixed cylinder 121 rotates, it drives the clamp 120 and the casing tube held by the clamp 120 to rotate. The end plug and casing tube rotate together, and the light source mechanism 109 illuminates the pressing chamber 101. The camera mechanism 108 records the connection between the end plug and the casing tube and transmits the data to an external device for testing. This pressing device allows for testing of the connection between the end plug and the casing tube without removing the casing tube from the pressing device. Compared to existing technologies that require partially removing or moving the casing tube for testing, this significantly saves testing time and improves production efficiency.

[0075] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic end-plug compression device, characterized in that, Includes housing, clamping assembly, plug assembly, conveying assembly, and displacement assembly; The housing has a compression chamber inside, and a first chamber and a second chamber are respectively provided at both ends of the housing. Both the first chamber and the second chamber are connected to the compression chamber. A first observation window connected to the compression chamber is provided at the top of the housing. One end of the clamping assembly is located in the first cavity and is detachably connected to the housing. The clamping assembly includes a first pushing mechanism and a clamping mechanism. A through hole is provided at the axis of the first pushing mechanism; a clamping hole is provided in the axial direction of the clamping mechanism. The first pushing mechanism is connected to the clamping mechanism at one end facing the compression chamber, and the first pushing mechanism is used to push the clamping mechanism to move along the length direction of the first chamber; The clamping mechanism includes a fixed sleeve, a clamping sleeve, a chuck, and a fixed cylinder. One end of the fixed sleeve is fixedly connected to the end of the first pushing mechanism near the compression chamber. The clamping sleeve is sleeved on the fixed sleeve and connected to the fixed sleeve. The fixed cylinder is sleeved on the clamping sleeve, and one end of the fixed cylinder is rotatably connected to the first pushing mechanism. A limit ring is provided in the inner hole of the other end of the fixed cylinder. The clamping sleeve has a clamping groove at the end away from the first pushing mechanism, and one end of the clamp is fixedly installed in the clamping groove. The diameter of the end of the clamp near the limiting ring is larger than the inner diameter of the limiting ring. A second observation window and a third observation window are respectively provided on two adjacent side walls of the housing side wall where the first observation window is opened, and an avoidance window communicating with the first chamber is provided at the bottom of the housing. The housing is provided with a camera mechanism and a light source mechanism. The light emitted by the light source mechanism illuminates the camera mechanism through the second observation window, the pressure chamber and the third observation window. The clamping sleeve is rotatably connected to the fixed sleeve. The fixed sleeve is provided with a rotating assembly, which includes a rotating component and a transmission component. The outer periphery of the rotating component is connected to the first chamber with a gap. A power assembly is provided below the housing, and the power assembly is connected to the transmission component. One end of the plunger assembly is located in the second chamber and is detachably connected to the housing; Both the conveying assembly and the displacement assembly are mounted on the housing. The lower end of the displacement assembly passes through the first observation window and is located within the compression chamber. The conveying assembly includes a aligning assembly, a transmission assembly, and a placement box. The aligning assembly is connected to the placement box via the transmission assembly. The aligning assembly is mounted on the side of the housing where the second chamber is located. The bottom of the placement box has a drain hole for the end plug to pass through. The aligning assembly includes a base, which contains an aligning groove and a mounting cavity. The aligning groove is located above and communicates with the mounting cavity. The top surface and the side near the first observation window of the aligning groove are both open. A transmission mechanism is provided within the mounting cavity. A groove with an inverted trapezoidal structure is formed in the center of the bottom surface of the aligning groove, near... A aligning component is provided at one end of the first observation window. The top surface of the aligning component is flat, and the side wall of the aligning component near the groove is inclined. The side of the aligning component away from the groove is higher than the groove surface. The aligning groove on the side of the aligning component away from the groove is used to place the end plug. The transmission mechanism includes two double pulleys, two belts, and a drive device. The two double pulleys are respectively rotatably mounted on the cavity walls at both ends of the mounting cavity. The two belts are spaced apart on the two double pulleys, and the upper parts of the two belts are located in the aligning groove, with a certain gap between them and the groove surface. The distance between the two belts is less than the maximum diameter of the end plug and greater than the minimum diameter of the end plug. The drive device is mounted on the base, and its output end passes through the base and is fixedly connected to one of the double pulleys.

2. The automatic end-plug compression device according to claim 1, characterized in that, The first pushing mechanism includes a housing, a sliding cavity inside the housing, an opening at one end of the housing, a sealing tube, an annular piston, and a pushing sleeve inside the sliding cavity, one end of the sealing tube being located inside the opening and having a gap between it and the opening wall, and the other end of the sealing tube penetrating the housing and being sealed to the housing. The push sleeve is installed on one side of the annular piston. Both the push sleeve and the annular piston are sleeved on the sealing tube and are slidably sealed with the sealing tube. The outer peripheral wall of the annular piston is slidably sealed with the cavity wall of the sliding cavity. The end of the push sleeve away from the annular piston passes through the opening and is connected to the clamping mechanism; the outer peripheral wall of the push sleeve slides and seals with the opening wall. The outer casing is provided with an air inlet and an air outlet that communicate with the sliding cavity.

3. The automatic end-plug compression device according to claim 1, characterized in that, The plunger assembly includes a second pushing mechanism, a pushing rod, and a first vacuum mechanism. The second pushing mechanism is connected to the housing. The pushing rod is horizontally disposed in the second chamber and connected to the second pushing mechanism. The pushing rod has a vacuum channel inside, and one end of the vacuum channel passes through the peripheral wall of the pushing rod and communicates with the first vacuum mechanism through a hose. The end of the push rod away from the second push mechanism has a tooling groove for installing a tooling, and the tooling groove is connected to the vacuum channel.

4. The automatic end-plug compression device according to claim 1, characterized in that, The displacement assembly includes a first displacement mechanism, a second displacement mechanism, a suction head, and a second vacuum mechanism. The first displacement mechanism is mounted on the housing and is located on one side of the first observation window. The second displacement mechanism is mounted on the first displacement mechanism and is located above the first observation window; The suction head is installed below the second displacement mechanism and connected to the second vacuum mechanism; The first displacement mechanism is used to drive the second displacement mechanism to move in the horizontal direction, and the second displacement mechanism is used to drive the suction head to move in the vertical direction.

Images