A device and method for in-situ repair of insulation support in the long, deep, and narrow bore of an electromagnetic launcher tube.

Abstract

This invention provides an in-situ repair device and method for insulating supports in the long, deep, and narrow inner bore of an electromagnetic transmitter tube. The device includes: a grinding platform with four pads, each with adjustable spacing; a grinding tool, longer than half the length of the tube, with varying roughness and adjustable spacing at its front end to accommodate different width requirements between two insulating supports; a resin delivery device that uses extrusion to place repair resin at the damaged location of the insulating support; a long, electrically heated metal sheet for fixing and heating the repair resin; a release agent to facilitate the detachment of the long, electrically heated metal sheet from the repair resin after curing; a demolding machine to detach the long, electrically heated metal sheet from the repair resin; an air compressor and alcohol for cleaning the inner bore; and a power supply to provide demolding power to the demolding machine and to heat the long, electrically heated metal sheet. This device enables the repair of locally damaged insulating supports in long, deep, and narrow inner bores, extending their service life. Furthermore, this invention also provides a repair method using this device.

Description

Technical Field

[0001] This invention relates to the field of repairing the insulation support inside the bore of an electromagnetic launcher tube, specifically to a device and method for in-situ repair of the insulation support in the long, deep, and narrow bore of an electromagnetic launcher tube. Background Technology

[0002] During electromagnetic launch, the strong electromagnetic force generated by the high-pulse current propels the launcher to achieve extremely high acceleration within the electromagnetic launch tube, resulting in a high initial velocity. However, the high-temperature plasma generated by the high-pulse current ablates the insulating support, causing damage. Simultaneously, the high-speed motion of the launcher generates high-speed airflow that erodes the insulating support, further damaging it. Damage to the insulating support affects launch accuracy and severely limits its service life. Therefore, it is necessary to repair the damaged parts of the insulating support to ensure launch accuracy and extend its service life. However, the bore diameter of the electromagnetic launch tube is relatively small, approximately 25mm-35mm, making the repair of its insulating support quite difficult and impossible using existing conventional methods. Therefore, a special device is required to achieve in-situ repair of the insulating support within the long, deep, narrow bore of the electromagnetic launch tube. Summary of the Invention

[0003] To overcome the problem that existing technologies cannot achieve in-situ repair of insulation supports in the long, deep, and narrow inner bore of electromagnetic launcher tubes, this invention provides a device and method for in-situ repair of insulation supports in the long, deep, and narrow inner bore of electromagnetic launcher tubes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An in-situ repair device for the insulation support in the long, deep, and narrow inner bore of an electromagnetic launcher tube, comprising:

[0006] The grinding platform has the first, second, third, and fourth pads placed in a straight line on its surface to facilitate the fixation of the electromagnetic transmitter tube.

[0007] The grinding tool is more than half the length of the electromagnetic transmitter tube. The front end of the grinding tool has a certain roughness. Its size matches the diameter of the electromagnetic transmitter tube. The endoscope is inserted from the other end of the electromagnetic transmitter tube. The grinding tool is used to visually guide the grinding of the specific damaged parts of the first and second insulation supports.

[0008] A resin delivery device, with a length exceeding half the length of the electromagnetic transmitter tube, is used to place a certain amount of resin at the front end of the device. An endoscope is then inserted from the other end of the electromagnetic transmitter tube to provide visual guidance for the application of the repair resin. The resin extrusion mechanism is operated to extrude the resin and apply it to the damaged area of ​​the insulation support.

[0009] A release agent is applied to one side of the first heating long metal sheet. The side with the release agent applied is placed into the inner cavity of the first insulating support, so that the first heating long metal sheet and the first insulating support are attached together and the repair resin on the surface of the first insulating support is fixed. A release agent is applied to one side of the second heating long metal sheet. The side with the release agent applied is placed into the inner cavity of the second insulating support, so that the second heating long metal sheet and the second insulating support are attached together and the repair resin on the surface of the second insulating support is fixed.

[0010] The support device is placed between the first and second electric heating long metal sheets to increase the adhesion between the first electric heating long metal sheet and the first insulating support, as well as between the second electric heating long metal sheet and the second insulating support, thereby further fixing the repair resin.

[0011] This invention also provides an in-situ repair method for the insulation support in the inner bore of a long, deep, narrow hole in an electromagnetic transmitter tube. This method repairs locally damaged portions of the insulation support in the inner bore of a long, deep, narrow hole in an electromagnetic transmitter tube using the aforementioned in-situ repair device for the insulation support in the inner bore of a long, deep, narrow hole in an electromagnetic transmitter tube, and includes the following steps:

[0012] S1: Adjust the level of the grinding platform, measure the distance of the electromagnetic transmitter tube clamp, adjust the distance of the shims accordingly, place the electromagnetic transmitter tube on the shims, and fix the electromagnetic transmitter tube.

[0013] S2: The endoscope is inserted into the inner bore of the electromagnetic transmitter tube from one end, which can effectively monitor the worn parts. The grinding tool is inserted into the other end of the electromagnetic transmitter tube and the damage is ground. After the grinding is completed, the grinding tool is withdrawn from the inner bore of the tube.

[0014] S3: After the damaged area of ​​the insulation support is polished, high-pressure gas is used to blow the debris out of the inner bore of the electromagnetic transmitter tube to remove the debris. At the same time, alcohol is used to further wipe the polished area to increase the bonding force between the repair resin and the material.

[0015] S4: After cleaning the inner cavity with alcohol, place a certain amount of repair resin at the front end of the resin delivery device. Under the monitoring of the endoscope, operate the resin extrusion mechanism to extrude the repair resin to the damaged area of ​​the polished insulation support, and apply the repair resin to the target location. After the repair resin is applied, retract the resin delivery device and endoscope.

[0016] S5: Apply a release agent to one side of the first heating long metal sheet, and insert the side with the release agent toward the first insulating support into the inner cavity of the electromagnetic transmitter tube, so that the first heating long metal sheet and the first insulating support are attached together and the repair resin on the surface of the first insulating support is fixed; apply a release agent to one side of the second heating long metal sheet, and insert the side with the release agent toward the second insulating support into the inner cavity of the electromagnetic transmitter tube, so that the second heating long metal sheet and the second insulating support are attached together and the repair resin on the surface of the second insulating support is fixed;

[0017] S6: The support device is placed between the first and second electric heating long metal sheets. The support device makes the first and second electric heating long metal sheets fit tightly against the first and second insulating supports respectively, and further presses and fixes the repair resin.

[0018] S7: Power on the first and second electric heating long metal sheets, set their temperature and heating time, and heat the repair resin to cure it;

[0019] S8: After curing is complete, disconnect the power supply to the first and second electric heating long metal sheets and remove the support device;

[0020] S9: Connect one end of the demolding machine to the first long heating metal sheet, and demold the first long heating metal sheet using the demolding machine. Repeat the same steps for the second long heating metal sheet to demold it.

[0021] S10: Grind and clean the repaired area inside the electromagnetic launcher tube to ensure good flatness and complete the in-situ repair of the insulation support in the long, deep and narrow inner bore of the electromagnetic launcher tube.

[0022] Beneficial effects:

[0023] Electromagnetic launch tubes have a small cross-sectional diameter and a long, deep, narrow inner bore, making the repair of their insulation supports quite challenging. This invention offers a smooth and simple repair process, enabling in-situ repair of damaged insulation supports in the long, deep, and narrow inner bore of electromagnetic launch tubes. The repaired electromagnetic launch tubes exhibit reliable firing accuracy and significantly extend their service life. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the inner side of the electromagnetic launch tube of the present invention;

[0025] Figure 2 This is a front view showing the positional relationship between the grinding tool and the insulating support of the present invention;

[0026] Figure 3 This is a cross-sectional view of the inner side of the electromagnetic launch tube of the present invention;

[0027] Figure 4 This is a front view of an in-situ repair device for insulating support in the long, deep, and narrow inner bore of an electromagnetic transmitter tube according to the present invention.

[0028] Figure 5 This is a schematic diagram of the demolding process of the first electrothermal long metal sheet of the present invention;

[0029] Figure 6 This is an overall diagram of an in-situ repair device for insulation support in the long, deep, and narrow inner bore of an electromagnetic transmitter tube according to the present invention.

[0030] The attached figures are labeled as follows: 1-Grinding platform; 2-First pad; 3-Second pad; 4-Third pad; 5-Fourth pad; 6-Grinding mold; 7-Front end of mold; 8-First insulating support; 9-Second insulating support; 10-Endoscope; 11-Electromagnetic transmitter tube; 12-Resin delivery device; 13-Resin extrusion mechanism; 14-Repair resin; 15-First heating long metal sheet; 16-Second heating long metal sheet; 17-Support device; 18-Demolding machine. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0032] like Figures 1-6 As shown, the in-situ repair device for insulation support in the long, deep and narrow inner bore of the electromagnetic transmitter tube of the present invention includes a grinding platform 1, a grinding tool 6, an endoscope 10, a resin delivery device 12, a first electric heating long metal sheet 15, a second electric heating long metal sheet 16, and a support device 17.

[0033] The grinding platform 1 is equipped with a first pad 2, a second pad 3, a third pad 4, and a fourth pad 5. In use, the spacing of the first pad 2, the second pad 3, the third pad 4, and the fourth pad 5 can be freely adjusted in a linear direction according to the clamp spacing of the electromagnetic transmitter tube 11.

[0034] The grinding tool 6 is more than half the length of the electromagnetic transmitter tube 11, and the front end 7 of the tool has a certain degree of roughness. Its size matches the diameter of the electromagnetic transmitter tube 11. Figure 2 As shown, the front end 7 of the abrasive mold is in contact with the damaged position of the first insulating support 8, which can be used to clean and polish the damaged position.

[0035] The endoscope 10 is longer than the electromagnetic transmitter tube 11, and provides visualization for the grinding and repair of damaged parts of the auxiliary insulating support and the application of the repair resin 14.

[0036] The resin delivery device 12 is more than half the length of the electromagnetic transmitter tube 11. A certain amount of repair resin 14 is contained at the front end of the device. The resin extrusion mechanism 13 extrudes the repair resin 14 from the device and applies it to the damaged positions of the first insulating support 8 and the second insulating support 9.

[0037] The first heating long metal sheet 15 and the second heating long metal sheet 16 are coated with a release agent on one side, and the side coated with the release agent is placed facing the first insulating support 8 and the second insulating support 9 respectively and then attached to fix and heat-cur the repair resin on the surface of the first insulating support 8 and the second insulating support 9.

[0038] The support device 17 is placed between the first electric heating long metal sheet 15 and the second electric heating long metal sheet 16, further increasing the adhesion between the two electric heating long metal sheets and the insulating support, and assisting in the fixation of the repair resin 14.

[0039] The demolding machine 18 is used to assist in the demolding of the first electrothermal long metal sheet 15 and the second electrothermal long metal sheet 16. Based on the above-mentioned in-situ repair device for the insulation support in the long, deep, and narrow inner bore of the electromagnetic transmitter tube, the in-situ repair method for the insulation support in the long, deep, and narrow inner bore of the electromagnetic transmitter tube of the present invention includes the following steps:

[0040] S1: As Figure 1 As shown, the grinding platform 1 is leveled, the distance between the clamps of the electromagnetic transmitter tube 11 is measured, and the straight-line distances of the first pad 2, the second pad 3, the third pad 4, and the fourth pad 5 are adjusted so that each pad corresponds one-to-one with each clamp position of the electromagnetic transmitter tube 11. The electromagnetic transmitter tube 11 is then placed horizontally on the first pad 2, the second pad 3, the third pad 4, and the fourth pad 5, so that each pad supports each clamp of the electromagnetic transmitter tube 11, thus completing the fixation of the electromagnetic transmitter tube 11.

[0041] S2: Insert the grinding tool 6 into the inner bore from one end of the electromagnetic transmitter tube 11, and insert the endoscope 10 from the other end to observe the fit between the front end 7 of the grinding tool and the damaged area, guiding the grinding work. Under the observation of the endoscope 10, the operator repeatedly pushes and pulls the long rod of the grinding tool 6 to grind the damaged area until the front end 7 of the grinding tool is smooth. After grinding is completed, the grinding tool 6 is put away.

[0042] S3: High-pressure gas is used to blow out the debris from the grinding area inside the electromagnetic launcher tube, and alcohol is used to wipe the grinding area to increase the bonding force between the repair resin 14 and the resin.

[0043] S4: As Figure 3 As shown, after the inner cavity is cleaned, the resin delivery device 12 is inserted into the inner cavity from one end of the electromagnetic transmitter tube 11, and the endoscope 10 is inserted from the other end to observe the depth of the resin delivery device 12 and guide the application of the repair resin 14. Under the observation of the endoscope 10, the operator operates the resin extrusion mechanism 13 of the resin delivery device 12 to extrude the repair resin 14 and precisely apply it to the polished damaged area of ​​the insulation support. After the repair resin 14 is applied, the resin delivery device 12 and the endoscope 10 are retracted.

[0044] S5: Apply release agent to one side of the first heating long metal sheet 15 and the second heating long metal sheet 16 respectively. Apply release agent to one side of the first heating long metal sheet 15, and insert the side with release agent towards the first insulating support 8 into the inner cavity of the electromagnetic transmitter tube 11, so that the first heating long metal sheet 15 and the first insulating support 8 are attached and the repair resin 14 on the surface of the first insulating support 8 is fixed. Apply release agent to one side of the second heating long metal sheet 16, and insert the side with release agent towards the second insulating support 9 into the inner cavity of the electromagnetic transmitter tube 11, so that the second heating long metal sheet 16 and the second insulating support 9 are attached and the repair resin 14 on the surface of the second insulating support 9 is fixed.

[0045] S6: As Figure 4 As shown, the support device 17 is placed between the first heating long metal sheet 15 and the second heating long metal sheet 16. The support device 17 squeezes the two heating long metal sheets, so that the first heating long metal sheet 15 and the second heating long metal sheet 16 are tightly attached to the first insulating support 8 and the second insulating support 9, and the repair resin 14 is further pressed and fixed.

[0046] S7: Power on the first heating long metal sheet 15 and the second heating long metal sheet 16, set their temperature and heating time, and heat the repair resin 14 to cure it.

[0047] S8: After curing is complete, disconnect the power supply to the first heating long metal sheet 15 and the second heating long metal sheet 16, and remove the support device 17.

[0048] S9: Connect one end of the demolding machine 18 to the first electric heating long metal sheet 15, and demold the first electric heating long metal sheet 15 through the demolding machine 18. Repeat the same steps for the second electric heating long metal sheet 16 to demold the second electric heating long metal sheet 16.

[0049] S10: Use the grinding tool 6 again to grind the repaired part of the inner bore of the electromagnetic transmitter tube 11 to make the repaired part have good integrity. Use high-pressure gas to blow out the grinding debris, wipe the inner bore of the electromagnetic transmitter tube 11 with alcohol to clean it, and complete the in-situ repair of the insulation support of the inner bore of the electromagnetic transmitter tube 11.

[0050] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements 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 electromagnetic launch barrel long deep fine inner bore insulation support in-situ repair device, characterized in that, It comprises: A polishing platform (1) on which a first pad (2), a second pad (3), a third pad (4) and a fourth pad (5) are placed in a straight line to facilitate the fixation of the electromagnetic launch barrel (11); A polishing tool (6) whose length is more than half the length of the electromagnetic launch barrel (11), the front end of the polishing tool (7) has a certain roughness and its size matches the caliber of the electromagnetic launch barrel, an endoscope (10) is sent into the other end of the electromagnetic launch barrel (11) to visually guide the polishing of the specific damaged parts of the first insulating support (8) and the second insulating support (9) by the polishing tool (6); A resin delivery device (12) whose length is more than half the length of the electromagnetic launch barrel (11), a certain amount of repair resin (14) is placed at the front end of the resin delivery device (12), an endoscope (10) is sent into the other end of the electromagnetic launch barrel (11) to visually guide the smearing of the repair resin (14); the repair resin (14) is extruded by the resin extrusion mechanism (13) and smeared on the damaged positions of the first insulating support (8) and the second insulating support (9); The first electrically heated long metal sheet (15) is smeared with release agent on one side, placed into the bore with the side smeared with release agent facing the first insulating support (8), so that the first electrically heated long metal sheet (15) is attached to the first insulating support (8) and fixes the repair resin (14) on the surface of the first insulating support (8); the second electrically heated long metal sheet (16) is smeared with release agent on one side, placed into the bore with the side smeared with release agent facing the second insulating support (9), so that the second electrically heated long metal sheet (16) is attached to the second insulating support (9) and fixes the repair resin (14) on the surface of the second insulating support (9); The support device (17) is placed between the first electrically heated long metal sheet (15) and the second electrically heated long metal sheet (16) to increase the attachment force between the first electrically heated long metal sheet (15) and the first insulating support (8) and between the second electrically heated long metal sheet (16) and the second insulating support (9), further fixing the repair resin (14).

2. The in-situ repair device for an electromagnetic launch barrel long-deep narrow bore according to claim 1, characterized in that, The first pad (2), the second pad (3), the third pad (4) and the fourth pad (5) are placed in a straight line, and the distance between each pad is adjusted according to the distance of the hoop of the electromagnetic launch barrel (11) to fix the electromagnetic launch barrel (11).

3. The in-situ repair device for an electromagnetic launch barrel long-deep narrow bore according to claim 1, characterized in that, The front end of the polishing tool (7) has a certain roughness and its size matches the caliber of the electromagnetic launch barrel, achieving the function of polishing the specific damaged parts of the first insulating support (8) and the second insulating support (9).

4. The in-situ repair device for an electromagnetic launch barrel long-deep fine inner bore insulation support according to claim 1, characterized in that, The length of the resin delivery device (12) is more than half the length of the electromagnetic launch barrel (11).

5. The in-situ repair device for an electromagnetic launch barrel long-deep fine inner bore insulation support according to claim 1, characterized in that, The length of the endoscope (10) is greater than the length of the electromagnetic launch barrel (11), assisting the visual operation of polishing the damaged parts of the insulating support and smearing the repair resin (14).

6. A method of repairing an in-situ repair device for insulating the interior bore of an electromagnetic launch tube long-deep detail according to any one of claims 1-5, characterized in that, It comprises the following steps: S1: Adjust the level of the polishing platform (1), measure the electromagnetic launch barrel (11) clamp distance, and adjust the distance of the first pad (2), the second pad (3), the third pad (4), and the fourth pad (5) accordingly, so that the pad position corresponds to the clamp position one by one, and the electromagnetic launch barrel (11) is placed on the first pad (2), the second pad (3), the third pad (4), and the fourth pad (5), and the electromagnetic launch barrel (11) is fixed; S2: The endoscope (10) is inserted into the bore of the electromagnetic launch barrel (11) from one end, effectively monitoring the wear area, and the polishing tool (6) is inserted into the other end of the electromagnetic launch barrel (11), polishing the damaged position of the first insulating support (8) and the second insulating support (9), and after polishing, the polishing tool (6) is withdrawn from the bore of the electromagnetic launch barrel (11); S3: After the first insulating support (8) and the second insulating support (9) are polished, high-pressure gas is used to blow out the debris in the electromagnetic launch barrel (11) to achieve debris removal, and alcohol is used to further wipe the polished area to increase the bonding force between the repair resin (14) and the polished area; S4: After the bore is cleaned with alcohol, a certain amount of repair resin (14) is placed at the front end of the resin delivery device (12), and under the monitoring of the endoscope (10), the resin extrusion mechanism (13) is operated to extrude the repair resin (14) to the damaged position of the first insulating support (8) and the second insulating support (9), and the repair resin (14) is applied to the target position; After the repair resin (14) is applied, the resin delivery device (12) and the endoscope (10) are retracted; S5: Apply release agent to one side of the first electrically heated long metal sheet (15), and send the side with release agent into the electromagnetic launch barrel (11) towards the first insulating support (8), so that the first electrically heated long metal sheet (15) is attached to the first insulating support (8) and fixes the repair resin (14) on the surface of the first insulating support (8); Apply release agent to one side of the second electrically heated long metal sheet (16), and send the side with release agent into the electromagnetic launch barrel (11) towards the second insulating support (9), so that the second electrically heated long metal sheet (16) is attached to the second insulating support (9) and fixes the repair resin (14) on the surface of the second insulating support (9); S6: Place the support device (17) between the first electrically heated long metal sheet (15) and the second electrically heated long metal sheet (16), and use the support device (17) to make the first electrically heated long metal sheet (15) and the second electrically heated long metal sheet (16) tightly attached to the first insulating support (8) and the second insulating support (9) respectively, and further compress and fix the repair resin (14); S7: Connect power to the first electrically heated long metal sheet (15) and the second electrically heated long metal sheet (16), set the temperature and heating time, and heat the repair resin (14) to make it solidify; S8: After solidification, disconnect the power supply of the first electrically heated long metal sheet (15) and the second electrically heated long metal sheet (16), and remove the support device (17). S9: one end of the demolding machine (18) is connected with the first electric heating long metal sheet (15), the first electric heating long metal sheet (15) is extracted by the demolding machine (18), and the second electric heating long metal sheet (16) is repeatedly connected with the same step to make the second electric heating long metal sheet (16) extract; S10: the repair part of the electromagnetic launching barrel (11) is polished and cleaned, so that the repair part has good flatness, and the in-situ repair of the insulation support in the long and deep inner bore of the electromagnetic launching barrel is completed.

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