A polishing tool for repairing long deep inside insulation support of electromagnetic launch tube

Abstract

The application provides a polishing tool for repairing long and deep internal insulation support of electromagnetic emission barrel, which is composed of an operating long handle and a grinding head. The operating long handle is a long rod structure, and the front end is mechanically connected with the grinding head. The grinding head is composed of a grinding head support shell, a grinding head pressing block, a spring, a column pin and a polishing piece, and is the main mechanism of the polishing tool device. The front and rear of the grinding head support shell along the length direction of the shell are respectively provided with thread and screw hole structures, which are used for mechanically connecting with the operating long handle and can also be used for connecting additional grinding heads to increase the polishing area and improve the polishing efficiency. The grinding head pressing block is a main part for fixing the polishing piece, and the column pin passes through the long waist round hole in the lower part of the grinding head pressing block to connect and fix the grinding head pressing block with the grinding head support shell. Under the action of the spring force, the grinding head pressing block presses the polishing piece and the polishing area tightly, so that the contact state of the polishing piece and the pit during polishing of the damaged position of the insulation support at different depths of the pit is self-adaptively adjusted.

Description

Technical Field

[0001] This invention relates to the field of repairing the internal insulation support of an electromagnetic transmitter tube, and specifically to a grinding tool for repairing the long, deep, and narrow internal insulation support of an electromagnetic transmitter tube. Background Technology

[0002] During electromagnetic launch, the high-temperature plasma generated by the high-pulse current ablates the insulating support, causing damage. Simultaneously, the high-speed airflow generated by the high-speed movement of the launcher also damages the insulating support. Damage to the insulating support affects launch accuracy and severely limits its service life. Therefore, it is necessary to repair the damaged areas of the insulating support to ensure launch accuracy and extend its service life. During the repair process, the damaged area needs to be ground and cleaned. However, the electromagnetic launch tube has a relatively small cross-sectional dimension (approximately 25mm-35mm) and a relatively long length (approximately 5m-6m), with deep, narrow pores inside, making grinding the damaged areas quite difficult. Therefore, a grinding tool is needed for repairing the deep, narrow internal insulating support of the electromagnetic launch tube to achieve the purpose of grinding the damaged areas. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a grinding tool for repairing the long, deep and narrow internal insulation support of an electromagnetic transmitter tube, thereby realizing the function of grinding the damaged area of ​​the internal insulation support of the long, deep and narrow hole of the electromagnetic transmitter tube.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] Its structure is as follows:

[0006] A grinding tool for repairing the internal insulation support of a long, narrow electromagnetic transmitter tube comprises an operating handle and a grinding head. The operating handle is a long rod-like structure, with a length greater than half the length of the electromagnetic transmitter tube. The front end of the operating handle is mechanically connected to the grinding head. The grinding head, consisting of a grinding head support shell, a grinding head pressure block, a spring, a pin, and grinding discs, is the main mechanism of the device. The grinding head support shell has threads and screw holes along its length at the front and rear, respectively, for mechanical connection with the operating handle. It can also be used to connect additional grinding heads to increase the grinding area and improve grinding efficiency. The grinding head pressure block has an arc-shaped grinding side, and different types of grinding discs can be installed on the arc surface to meet different needs. The pin passes through an elongated oval hole at the bottom of the grinding head pressure block, connecting and fixing the grinding head pressure block to the grinding head support shell. The grinding head pressure block can extend and retract within the long oval hole under the elastic force of the spring, so as to achieve adaptive adjustment of the contact state between the grinding disc and the pit when grinding pits of different depths in the damaged insulation support, ensuring that the grinding disc and the grinding target area of ​​different depths are always kept in a tight state.

[0007] Furthermore, the grinding head support shell is made of self-lubricating materials such as nylon and polytetrafluoroethylene to ensure that the grinding tool will not damage areas other than the grinding target during the grinding process.

[0008] Furthermore, the polishing pad can be, but is not limited to, consumables such as sandpaper.

[0009] Beneficial effects:

[0010] This invention features a simple structure and is easy to manufacture. The arc surface of the grinding head clamp can effectively handle damaged areas of different shapes during the grinding process; the device can increase the number of grinding heads through expansion connections, effectively increasing the grinding area and improving grinding efficiency; under the action of spring force, the grinding head clamp can adaptively adjust the contact state between the grinding disc and the pits of different depths when grinding damaged insulation supports. The above functions can effectively achieve the grinding of damaged insulation supports inside the long, deep, and narrow electromagnetic transmitter tube. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of a grinding tool for repairing the long, deep, and narrow internal insulating support of an electromagnetic transmitter tube according to the present invention.

[0012] Figure 2 This is an exploded view of the grinding head structure of a grinding tool for repairing the long, deep, and narrow internal insulating support of an electromagnetic transmitter tube, according to the present invention.

[0013] Figure 3 This is a schematic diagram of the extended housing of the grinding head support of the present invention;

[0014] Figure 4 This is a comparative cross-sectional view of the grinding head of the present invention when grinding different insulation supports with different depths of damage.

[0015] Figure 5 This is a schematic diagram of a grinding tool for repairing the internal insulation support of a long, deep, and narrow electromagnetic transmitter tube according to the present invention.

[0016] The attached diagram is labeled as follows: 1-Operating handle; 2-Grinding head; 3-Grinding head support housing; 4-Grinding head pressure block; 5-Spring; 6-Pin; 7-Grinding disc; 8-First insulating support with shallow damage pits; 9-First insulating support with deep damage pits; 10-Second insulating support without damage; 11-Octagonal hole; 12-Upper locating pin of the spring; 13-Lower locating pin of the spring. Detailed Implementation

[0017] 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. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0018] like Figures 1-5 As shown, the present invention provides a grinding tool for repairing the internal insulation support of a long, deep, and narrow electromagnetic transmitter tube, comprising two main mechanisms: an operating handle 1 and a grinding head 2.

[0019] The operating handle 1 is a long rod-shaped structure, with a length greater than half the length of the electromagnetic transmitter tube. The front end of the operating handle 1 is mechanically connected to the grinding head 2.

[0020] The grinding head 2 consists of a grinding head support shell 3, a grinding head pressure block 4, a spring 5, a pin 6, and a grinding disc 7, and is the main mechanism of the grinding tool.

[0021] The grinding head support housing 3 has a shell-like structure, with three spring-loaded lower positioning pins 13 located on the inner bottom. Figure 2 As shown by the dashed line. The diameter of the lower locating pin 13 of the spring is smaller than the minor diameter of the spring 5, allowing for a clearance fit with the spring 5. The upper part of the grinding head support housing 3 has two sets of connecting pin holes for fixing the pin 6. The grinding head support housing 3 has threaded and screw-hole structures at the front and rear along its length, respectively, for mechanical connection with the threaded front end of the operating handle 1.

[0022] Furthermore, through the threaded and screw hole structure on the outside of the grinding head support housing 3, multiple grinding heads 2 can be freely connected according to usage requirements, thereby expanding the grinding area and improving grinding efficiency.

[0023] Furthermore, to ensure that the mechanism does not damage areas outside the grinding target during the grinding process, the grinding head support shell 3 can be made of self-lubricating materials such as nylon and polytetrafluoroethylene.

[0024] The grinding head clamping block 4 is the main component for fixing the grinding disc 7 during the grinding process. The top of the grinding head clamping block 4 is an arc-shaped protrusion, which can be used to fix the grinding disc 7 to the outer side of the arc surface with adhesive. The lower part of the grinding head clamping block 4 has two cuboid protrusions with elongated oval holes 11. The positions of the two elongated oval holes 11 correspond one-to-one with the positions of the two sets of pin holes on the grinding head support housing 3, so that the grinding head clamping block 4 can be connected and fixed to the grinding head support housing 3 by the pins 6, and has freedom only in the longitudinal direction of the elongated oval holes 11. The lower part of the grinding head clamping block 4 has three upper spring positioning pins 12, whose positions correspond one-to-one with the three lower spring positioning pins 13 on the inner bottom of the grinding head support housing 3. The diameter of the upper spring positioning pins 12 is smaller than the minor diameter of the spring 5, which can form a clearance fit with the spring 5.

[0025] Spring 5 is vertically positioned between the grinding head pressure block 4 and the grinding head support housing 3. The upper minor diameter of spring 5 is clearance-fitted with the upper spring locating pin 12 at the lower part of the grinding head pressure block 4, and the lower minor diameter of spring 5 is clearance-fitted with the lower spring locating pin 13 located at the bottom inner side of the grinding head support housing 3, preventing radial movement of spring 5 under pressure. When the grinding head 2 extends into the long, deep, narrow hole, the spring 5 is in a free state, and the vertical distance between the top of the arc surface of the grinding head pressure block 4 and the bottom of the grinding head support housing 3 is greater than the inner diameter. When the grinding head 2 extends into the long, deep, narrow hole, the insulating supports on both sides of the hole compress the grinding head pressure block 4 and the grinding head support housing 3, compressing the spring 5 to provide the grinding disc 7 with the necessary pressure during grinding.

[0026] like Figure 4 As shown, when the insulation support inside the electromagnetic transmitter tube has shallow damage, the grinding disc 7 on the surface of the grinding head pressure block 4 presses against the first insulation support 8 with shallow damage, and the back of the grinding head support shell 3 is in close contact with the undamaged second insulation support 10. At this time, the spring is compressed to a large degree, and the grinding disc 7 can grind the first insulation support 8 with shallow damage. When the insulation support inside the electromagnetic transmitter tube has deep damage, the elastic force of the spring 5 pushes the grinding head pressure block 4 to move along the elongated oval hole 11 toward the grinding surface, so that the grinding disc 7 approaches and presses against the first insulation support 9 with deep damage, while the back of the grinding head support shell 3 is in close contact with the undamaged second insulation support 10. During this process, the compressed area of ​​the spring 5 rebounds, assisting the grinding head 2 in achieving adaptive adjustment to different grinding depth areas.

[0027] Furthermore, the contact surface between the grinding head pressure block 4 and the grinding disc 7 is an arc-shaped structure, which ensures that the grinding disc 7 fits tightly with the target area during the grinding process. Through repeated grinding, the internal insulation support of the electromagnetic transmitter tube, which is long, deep, and narrow, is finally ground and repaired.

[0028] 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. A grinding tool for repairing the internal insulation support of a long, deep, and narrow electromagnetic transmitter tube, characterized in that: It consists of an operating handle (1) and a grinding head (2); the operating handle (1) is a long rod-shaped structure with a length greater than half the length of the electromagnetic transmitter tube; the front end of the operating handle (1) is mechanically connected to the grinding head (2); the grinding head (2) consists of a grinding head support shell (3), a grinding head pressure block (4), a spring (5), a pin (6), and a grinding disc (7), and has threaded and threaded hole structures at the front and rear of the grinding head support shell (3) along its length, for mechanical connection with the operating handle (1), or for use with... An additional grinding head (2) is connected to the extension to increase the grinding area and improve grinding efficiency; a pin (6) passes through the elongated oval hole (11) at the bottom of the grinding head pressure block (4) to connect and fix the grinding head pressure block (4) to the grinding head support shell (3), and the arc surface of the grinding head pressure block (4) is used to fix the grinding disc (7); a spring (5) is fixed between the grinding head support shell (3) and the grinding head pressure block (4) to provide elasticity to the grinding head pressure block (4) so ​​that the grinding head pressure block (4) keeps the grinding disc (7) pressed against the grinding target area; The top of the grinding head pressure block (4) is an arc-shaped protrusion, and the grinding disc (7) is fixed to the outer side of the arc surface by adhesive. The lower part of the grinding head pressure block (4) is provided with two cuboid protrusions with long oval holes (11). The positions of the two long oval holes (11) correspond one-to-one with the positions of the two sets of pin holes provided on the grinding head support shell (3), so that the grinding head pressure block (4) is connected and fixed to the grinding head support shell (3) by the pin (6), and has freedom only in the long direction of the long oval holes (11). The lower part of the grinding head pressure block (4) is provided with three upper spring positioning pins (12), the positions of which correspond one-to-one with the three lower spring positioning pins (13) on the bottom of the inner side of the grinding head support shell (3). The diameter of the upper spring positioning pin (12) is smaller than the minor diameter of the spring (5), and forms a clearance fit with the spring (5). The upper small diameter of the spring (5) is clearance-fitted with the upper spring positioning pin (12) of the lower part of the grinding head pressure block (4), and the lower small diameter of the spring (5) is clearance-fitted with the lower spring positioning pin (13) provided on the bottom inner side of the grinding head support shell (3) to prevent the spring (5) from radially moving when it is compressed; when the grinding head (2) extends into the front end of the long deep fine hole, the spring (5) is in a free state, and at this time the vertical distance between the top of the arc surface of the grinding head pressure block (4) and the bottom of the grinding head support shell (3) is greater than the inner diameter; when the grinding head (2) extends into the rear end of the long deep fine hole, the insulating supports on both sides of the interior squeeze the grinding head pressure block (4) and the grinding head support shell (3), compressing the spring (5) to provide the grinding disc (7) with the pressing pressure during grinding; When the insulation support inside the electromagnetic transmitter tube has a shallow damage hole, the grinding disc on the surface of the grinding head pressure block presses tightly against the first insulation support with a shallow damage hole, while the back of the grinding head support shell is in close contact with the undamaged second insulation support. At this time, the spring is compressed to a large degree, and the grinding disc grinds the first insulation support with a shallow damage hole. When the insulation support inside the electromagnetic transmitter tube has a deep damage hole, the spring force pushes the grinding head pressure block along the elongated oval hole toward the grinding surface, causing the grinding disc to approach and press against the first insulation support with a deep damage hole, while the back of the grinding head support shell is in close contact with the undamaged second insulation support. During this process, the compressed area of ​​the spring rebounds, assisting the grinding head in achieving adaptive adjustment to different grinding depth areas.

2. The grinding tool for repairing the internal insulation support of a long, deep, and narrow electromagnetic transmitter tube according to claim 1, characterized in that, The grinding head support shell (3) is made of nylon or polytetrafluoroethylene to ensure that the grinding tool will not damage areas outside the grinding target during the grinding process.

3. A grinding tool for repairing the internal insulation support of a long, deep, and narrow electromagnetic transmitter tube according to claim 1, characterized in that, The polishing disc (7) is sandpaper.

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