A cartridge assembly tooling and assembly method for a projectile adapter

Abstract

A cartridge assembly tool for a projectile adapter, characterized in that it comprises two clamping rings (3), four screw handles (4), four sliding supports (5), four threaded caps (6), a plurality of fastening screws (7), a rotating shaft pin (8) and a disassembly and assembly pin (9); the clamping ring (3) has a semi-circular ring structure, is symmetric about its central plane in the axial direction, and has a weight-reducing through groove (35) in the middle; the center of the upper end of the clamping ring (3) is a semi-elliptical groove (31), the lower end of the clamping ring (3) is an extended boss (33), there are upper through holes (32) on both sides of the semi-elliptical groove (31), and there are lower through holes (34) on the extended boss (33); it solves the problem of the lack of a special tool for the cartridge assembly of the projectile adapter. The operation of the present invention is simple and easy to learn and master.

Description

Technical Field

[0001] This patent is a tooling and assembly method for fitting a projectile adapter into a barrel, which involves the assembly of a projectile adapter into a barrel and can achieve the single-operator completion of the adapter fitting into the barrel. Background Art

[0002] The cross-section of the projectile adapter is fan-shaped and is generally installed in the annular gap between the projectile and the launch barrel, playing a crucial role in the transportation, loading and unloading, storage, and launch of the projectile. The inner and outer arcs of the adapter respectively match the outer diameter of the projectile and the inner diameter of the launch barrel, and the square positioning pins protruding from the inner arc surface are inserted into the corresponding square blind slots on the projectile to limit the adapter. Generally, 4 adapters are evenly distributed circumferentially around the projectile. Currently, there are mainly the following two problems in the process of fitting the projectile adapter into the barrel:

[0003] (1) Lack of special tools, and 3 fitters are required to cooperate with each other to complete the assembly, resulting in low efficiency. Since the 4 adapters are evenly distributed circumferentially and fit on the outer circumference of the projectile, during the assembly process, 2 fitters are required to fix 2 adapters with both hands respectively, and at the same time, 1 fitter is required to operate the projectile loading equipment to complete the fitting of all the projectile adapters into the barrel, causing a waste of human resources and low assembly efficiency.

[0004] (2) There is a risk of finger injury when the fitter holds the adapter and inserts it into the barrel. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a tooling and assembly method for fitting a projectile adapter into a barrel, which can achieve the single-operator completion of the adapter fitting into the barrel.

[0006] A tooling for fitting a projectile adapter into a barrel, characterized in that it includes two holding rings 3, four screw handles 4, four sliding supports 5, four threaded caps 6, a plurality of fastening screws 7, a rotating shaft pin 8, and a disassembly and assembly pin 9;

[0007] The holding ring 3 has a semi-circular ring structure, is symmetric about its central plane in the axial direction, and has a weight-reducing through groove 35 in the middle; the center of the upper end of the holding ring 3 is a semi-elliptical groove 31, the lower end of the holding ring 3 is an extended boss 33, there are upper through holes 32 on both sides of the semi-elliptical groove 31, and there are lower through holes 34 on the extended boss 33; the center lines of the upper through holes 32 and the lower through holes 34 are symmetric about the central axis of the holding ring 3; two square bosses 36 protrude radially outward along the outer circumference of the holding ring 3, the center lines of the two square bosses 36 intersect with the central axis of the inner arc surface of the holding ring 3, and the included angle between the center lines of the two square bosses 36 is 45°; and a square through groove 361 is provided at the center of the two square bosses 36;

[0008] At the upper end of each square boss 36 of the holding ring 3, a threaded cap 6 is fixedly installed. The bottom of the threaded cap 6 is square, and a cylinder is provided at the center of the upper surface of the square bottom. A threaded through hole is provided at the center of the cylinder, and the threaded through hole penetrates through the bottom of the threaded cap 6;

[0009] The sliding support 5 is inserted from the lower end of the square boss 36 of the holding ring 3. The upper end of the sliding support 5 has an inverted "T" - shaped structure. The upper part is a square column 52, and the lower part is a rectangular plate 51. The square column 52 is fixedly installed at the center of the rectangular plate 51. The lower surface of the rectangular plate 51 is an arc matching the adapter 2; A through - slot 53 of an inverted "T" - shape penetrates through the front and back of the top of the square column 52 at the upper part of the sliding support 5; The bottom surface of the rectangular plate 51 of the sliding support 5 is an arc, and the diameter of the arc matches the outer diameter of the adapter;

[0010] The screw handle 4 from top to bottom is successively a handle, a smooth rod, a threaded rod, a smooth rod, a threaded rod. At the top of the upper smooth rod, a thin rod extends out to the left and right sides respectively for use as a handle; The two threaded rods have the same specification, the nominal diameter of the thread is smaller than the outer diameter of the upper smooth rod, and the diameter of the lower smooth rod is smaller than the minor diameter of the threaded rod;

[0011] The screw handle 4 is screwed into the center of the threaded cap 6, and the lower end of the screw handle 4 is connected to the upper end of the sliding support 5. The lower end of the screw handle 4 is inserted into the inverted "T" - shaped through - slot 53 of the square column 52 of the sliding support 5;

[0012] Two holding rings 3 are connected to form a complete ring. The protruding boss 33 of one holding ring 3 is inserted into the semi - long circular groove 31 of the other holding ring 3 and is connected with a rotating shaft pin 8; Their other ends are connected with a disassembly and assembly pin 9.

[0013] A method for assembling a projectile adapter into a cylinder, characterized by including the following steps,

[0014] Step 1: Rotate the 4 screw handles 4 outward until the circumference diameter formed by the arcs at the bottoms of the 4 sliding supports 5 is the largest. Then pull out the disassembly and assembly pin 9 to open the two holding rings 3. Insert the open - end of one holding ring 3 circumferentially along the projectile 1 below the approximate installation position of the adapter 2 on the projectile 1 for standby;

[0015] Step 2: First, install the bosses 21 of the two adapters 2 on the upper side of the projectile body 1 into the square grooves 11 of the projectile body 1. Under the action of gravity, these two adapters 2 will not leave the projectile body 1. Then, close the two holding rings 3 to hold the projectile body 1. At the same time, insert the disassembly and assembly pin 9 into the lower through hole 34 of the upper semi-elliptical groove 31 of the holding ring 3 and into the upper wire through hole 32 on the protruding boss 33. Release both hands. The tooling holds the projectile body 1, and the arc-shaped bottom surfaces of the two sliding supports 5 on the upper side initially press on the two adapters 2 on the upper side of the projectile body 1. Then, with both hands cooperating, assemble the two adapters 2 on the lower side of the projectile body 1 one by one. When assembling the lower-side adapter 2, first insert the adapter into the inner circumference of the holding ring with both hands and buckle it on the projectile body 1. Then, hold one hand on the adapter 2 to prevent it from falling off, and rotate the threaded handle 5 at the corresponding part with the other hand to move the arc at the bottom of the sliding support 4 towards the central axis of the holding ring 3 until it slightly touches the adapter. Release both hands and complete the preliminary assembly of the other adapter 2 on the lower side of the projectile body 1 in the same way. Then, with both hands cooperating, rotate and adjust the 4 threaded handles 4 to make the arcs at the bottoms of the 4 sliding supports 5 fit tightly with the outer circumferences of the 4 adapters 2.

[0016] Step 3: Operate the projectile body 1 loading equipment to normally push the projectile body 1 into the launch tube. Pause the insertion into the tube when the adapter enters the launch tube by more than 15 mm and before the launch tube mouth collides with this tooling. Pull out the disassembly and assembly pin 9 to open the two holding rings 3, and draw out the two holding rings 3 from the periphery of the projectile body 1. Then, continue to operate the projectile body 1 loading equipment until it is completely inserted into the tube.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) It solves the problem of the lack of a dedicated tooling for the assembly of the projectile body adapter into the tube. The operation of the present invention is simple and easy to learn.

[0019] (2) It avoids the waste of human resources, can achieve single-person operation to complete the assembly of the adapter into the tube, and can effectively avoid personal safety injuries during the assembly of the adapter into the tube. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the projectile body 1;

[0021] Figure 2 is a schematic structural diagram of the adapter 2;

[0022] Figure 3 is another schematic structural diagram of the adapter 2;

[0023] Figure 4 is a schematic structural diagram of the holding ring 3 of the present invention;

[0024] Figure 5 is another schematic structural diagram of the holding ring 3 of the present invention; [[ID=)]

[0025] Figure 6 、Schematic diagram of the structure of the screw handle 4 of the present invention;

[0026] Figure 7 、Schematic diagram of the structure of the sliding support 5 of the present invention;

[0027] Figure 8 、Schematic diagram of the structure of the threaded cover 6;

[0028] Figure 9 、Schematic diagram of the tooling for assembling the adapter 2 into the cylinder of the present invention;

[0029] Figure 10 、Exploded view of the tooling for assembling the adapter 2 into the cylinder;

[0030] Figure 11 、One of the schematic diagrams of the method for assembling the adapter 2 into the cylinder of the present invention;

[0031] Figure 12 、Another schematic diagram of the method for assembling the adapter 2 into the cylinder of the present invention;

[0032] Figure 13 、The third schematic diagram of the method for assembling the adapter 2 into the cylinder of the present invention;

[0033] Figure 14 、The fourth schematic diagram of the method for assembling the adapter 2 into the cylinder of the present invention;

[0034] In the figure, 1 is the projectile body, 2 is the adapter, 3 is the clamping ring, 4 is the screw handle, 5 is the sliding support, 6 is the threaded cover, 7 is the fastening screw, 8 is the rotating shaft pin, 9 is the disassembly and assembly pin, 10 is the launch tube, 11 is the square groove, 21 is the convex platform, 31 is the upper semi-elliptical groove, 32 is the upper through hole, 33 is the upper through hole, 34 is the lower through hole, 35 is the weight-reducing through groove, 36 is the square convex platform, 51 is the rectangular plate, 52 is the square column, 53 is the inverted "T" shaped through groove, and 361 is the square through groove. Detailed implementation manners

[0035] The tools involved in the present invention include: 2 clamping rings, 4 screw handles, 4 sliding supports, 4 threaded covers, 16 fastening screws, a rotating shaft pin, and a disassembly and assembly pin.

[0036] The described holding ring is in a semi - circular ring structure, symmetric about its central plane in the axial direction, and has a weight - reducing through - slot in the middle; the center of the upper end of the holding ring is a semi - oblong slot, and the lower end is a protruding boss that can be inserted into the semi - oblong slot for cooperation. There is a through - hole on each of the semi - oblong slot and the protruding boss, and the diameters of the two through - holes are symmetric about the central axis of the holding ring and coplanar with the central axis of the holding ring (plane A); on the outer circumference of the holding ring, 2 square bosses radially extend outwards along the radial direction, symmetric about a plane passing through the central axis of the holding ring and perpendicular to plane A. The included angle between the centers of the two square bosses is 45°, and there is a square through - slot penetrating along the radial direction of the holding ring at the center of each of the two square bosses; on the upper end surfaces of the two square bosses, 4 threaded blind holes are evenly distributed respectively.

[0037] The described screw handle is successively a handle, a smooth rod, a threaded rod, a smooth rod, and a threaded rod from top to bottom. At the top of the upper - side smooth rod, a thin rod extends out to the left and right sides respectively for use as a handle; the specifications of the two threaded rods are the same, the nominal diameter of the thread is smaller than the outer diameter of the left - side smooth rod, and the diameter of the right - side smooth rod is smaller than the minor diameter of the threaded rod.

[0038] The described sliding support is in an inverted 'T' - shaped structure. The upper part is a square column, and the length of its square edge is matched with the width of the square through - slot at the center of the radially - extending boss of the holding ring; there is an inverted 'T' - shaped through - slot penetrating through the front and back of the top of the square column; the lower part of the sliding support is a rectangular plate with a circular arc bottom, and the diameter of the circular arc is matched with the outer diameter of the adapter; the centers of the upper - part square column and the lower - part rectangular plate coincide, and the lower surface of the upper - part square column is connected to the upper surface (length × width) of the lower - part rectangular plate.

[0039] The bottom of the described threaded cover is square. At the center of the upper surface of the square bottom, a cylinder is connected upwards. There is a threaded through - hole penetrating through the bottom of the threaded cover along the rotation axis of the cylinder; on the upper surface of the square bottom, 4 counter - sunk holes for assembling fastening screws are evenly distributed, and the distribution positions of the counter - sunk holes are matched with the 4 threaded blind holes evenly distributed on the upper end surfaces of the two square bosses on the holding ring.

[0040] The described fastening screw is an ordinary countersunk head screw. Just select a standard part, and the specification of the screw is matched with the specification of the threaded blind hole above the radially - extending square boss on the holding ring.

[0041] The described rotating shaft pin is a steel cylindrical pin. Just select a standard part, and the specification of the cylindrical pin is matched with the aperture of the through - holes at the upper and lower ends of the holding ring.

[0042] The described disassembly and assembly pin is a stepped column pin. The left side is a handle, and the right side is a smooth rod shaft. The diameter of the smooth rod shaft is matched with the aperture of the through - holes at the upper and lower ends of the holding ring.

[0043] In the present invention, two holding rings are assembled relatively with the upper and lower rings swapped. One end of the protruding boss at the bottom of one holding ring is inserted into the semi-long circular groove at the bottom of the other holding ring. The rotating shaft pin sequentially passes through the semi-long circular groove and the through hole on the protruding boss. The rotating shaft pin forms an interference fit with the through hole on the semi-long circular groove of the holding ring and a clearance fit with the through hole on the protruding boss of the holding ring, so that the two holding rings can open and close rotatably around the rotating shaft pin. The threaded end of the screw handle is screwed into the threaded hole at the cylindrical end of the threaded cover until it reaches the end of the thread of the screw handle. Then, the threaded end of the screw handle is inserted into the square through hole at the center of the square boss protruding radially from the upper edge of the holding ring until the smooth rod at the threaded end of the screw handle exposes the inner arc surface of the holding ring. Next, the smooth rod at the threaded end of the screw handle is inserted into the "T" - shaped through groove above the square column of the sliding support from the side to form a kinematic pair. The square column of the sliding support is inserted into the square through hole at the center of the square boss protruding radially from the upper edge of the holding ring by hand in cooperation to form a kinematic pair. The square column can slide along the square through groove. At the same time, the handle end of the threaded handle is pulled radially outwards until interference occurs and it cannot move further. Then, the threaded cover is rotated until the square bottom surface of the threaded cover coincides with the upper surface of the square boss on the holding ring. The fastening screw passes through the 4 counterbores on the threaded cover and is screwed into the threaded blind hole on the holding ring. By analogy, the assembly of 4 screw handles, 4 sliding supports, 4 threaded covers, and 16 fastening screws is completed in sequence. When the two holding rings are closed, the disassembly and assembly pin is sequentially inserted into the semi-long circular groove on one holding ring and the through hole on the protruding boss of the other holding ring to form a clearance fit, and at the same time, the two holding rings are locked. At this time, the circular rings of the two holding rings exactly form a complete circle.

[0044] The usage method of the tooling in the present invention is as follows:

[0045] Step 1: Rotate the 4 handles outwards until the diameter of the circle formed by the arcs at the bottoms of the 4 sliding supports is the largest. Then, pull out the disassembly and assembly pin to open the two holding rings, and insert the open end of one holding ring circumferentially along the circumference of the projectile body into the approximate position for installing the adapter below the projectile body for standby.

[0046] Step 2: First, install the two adapters on the upper side of the projectile body. Under the action of gravity, these two adapters will not leave the projectile body. Then, close the two retaining rings to hold the projectile body, and at the same time insert the disassembly and assembly pin into the upper semi-elliptical groove of the retaining ring and the through hole on the protruding platform. Release both hands. The tooling holds the projectile body, and the arc bottom surfaces of the two sliding supports on the upper side initially press against the two adapters on the upper side of the projectile body. Then, cooperate with both hands to assemble the two adapters on the lower side of the projectile body one by one. When assembling the lower-side adapter, first insert the adapter into the inner buckle of the retaining ring around the projectile body with both hands, then hold one hand to prevent the adapter from falling off, and rotate the threaded handle at the corresponding part with the other hand to move the arc at the bottom of the sliding support towards the central axis of the retaining ring until it slightly contacts the adapter. Release both hands and complete the preliminary assembly of the other adapter on the lower side of the projectile body in the same way. Then, cooperate with both hands to rotate and adjust the 4 threaded handles so that the arcs at the bottoms of the 4 sliding supports fit tightly against the outer circumferences of the 4 adapters.

[0047] Step 3: Operate the projectile loading equipment to normally perform the operation of inserting the projectile into the launch tube. Wait until the adapter enters the launch tube more than 15 mm and pause the insertion into the tube before the launch tube mouth collides with this tooling. Pull out the disassembly and assembly pin to open the two retaining rings, pull out the tooling from the periphery of the projectile body, and then continue to operate the projectile loading equipment to complete the entire insertion into the tube operation.

[0048] The following elaborates on the preferred embodiments of the present invention in conjunction with the attached drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. However, it should be noted that the purpose of publishing the embodiments is to help further understand the present invention. Without departing from the spirit and scope of the present invention and the appended claims, various substitutions and modifications are possible. Therefore, the present invention should not be limited to the content disclosed in the embodiments, and the scope of protection required by the present invention is defined by the scope of the claims.

[0049] Figures 1 - 2 As shown in the schematic diagram of the projectile body and the adapter, Figures 9 - 10 As shown in an adapter insertion tube assembly tooling, it includes: retaining rings (2), screw handles (4), sliding supports (4), threaded caps (4), fastening screws (16), a rotating shaft pin, and a disassembly and assembly pin.

[0050] Figures 4 - 5The shown loop holder is in a semi - circular ring structure, symmetric about its central plane in the axial direction, and there is a weight - reducing through - slot in the middle; the center of the upper end of the loop holder is a semi - oblong slot, and the lower end is a protruding boss that can be inserted into the semi - oblong slot for cooperation. There is a through - hole on each of the semi - oblong slot and the protruding boss. The diameters of the two through - holes are symmetric about the central axis of the loop holder and coplanar with the central axis of the loop holder (plane A); on the outer circumference of the loop holder, 2 square bosses are radially extended outward, symmetric about a plane passing through the central axis of the loop holder and perpendicular to plane A. The included angle between the centers of the two square bosses is 45°, and there is a square through - slot with a side length of 24 mm along the radial direction of the loop holder at the center of each of the two square bosses; on the upper end surfaces of the two square bosses, 4 M3 threaded blind holes are evenly distributed.

[0051] Figure 6 The shown screw handle consists of a handle, a polished rod, a M10 threaded rod, a polished rod, a M10 threaded rod.

[0052] Figure 7 The shown sliding support is in an inverted 'T' - shaped structure. The upper part is a square column with a side length of 23.9 mm; there is an inverted 'T' - shaped through - slot running through the front and back of the top of the square column; the lower part of the sliding support is a rectangular plate with a circular arc bottom, and the diameter of the circular arc matches the outer diameter of the adapter; the centers of the upper square column and the lower rectangular plate coincide.

[0053] Figure 8 The bottom of the shown threaded cover is square. At the center of the upper surface of the square bottom, a cylinder is connected upward. There is a M10 threaded through - hole running through the bottom of the threaded cover along the axis of rotation; on the upper surface of the square bottom, 4 counter - sunk holes for assembling fastening screws are evenly distributed, and the distribution positions of the counter - sunk holes match the 4 M3 threaded blind holes evenly distributed on the upper end surfaces of the two square bosses on the loop holder.

[0054] The fastening screw is an ordinary M3 countersunk head screw, and it can be selected as a standard part; the rotating shaft pin is a steel cylindrical pin, and it can be selected as a standard part. The specification of the cylindrical pin matches the aperture of the through - holes at the upper and lower ends of the loop holder; the disassembly and assembly pin is a stepped column pin, with a handle on the left side and a polished rod shaft on the right side, and the diameter of the polished rod shaft matches the aperture of the through - holes at the upper and lower ends of the loop holder.

[0055] As Figures 9 - 10As shown in the figure, two holding rings are assembled relatively with the circular rings swapped up and down. One end of the protruding boss at the bottom of one holding ring is inserted into the semi-long circular groove at the bottom of the other holding ring. The rotating shaft pin sequentially passes through the semi-long circular groove and the through hole on the protruding boss. The rotating shaft pin forms an interference fit with the through hole on the semi-long circular groove of the holding ring and a clearance fit with the through hole on the protruding boss of the holding ring, so as to enable the two holding rings to open and close rotatably around the rotating shaft pin. One end of the threaded part of the screw handle is screwed into the threaded hole at one end of the cylindrical part of the threaded cover until it reaches the end of the thread of the screw handle. Then, one end of the threaded part of the screw handle is inserted into the square through hole at the center of the square boss protruding radially outward along the upper edge of the holding ring until the smooth rod at one end of the threaded part of the screw handle exposes the inner arc surface of the holding ring. Then, the smooth rod at one end of the threaded part of the screw handle is inserted into the "T"-shaped through groove above the square column of the sliding support from the side to form a kinematic pair. The square column of the sliding support is inserted into the square through hole at the center of the square boss protruding radially outward along the upper edge of the holding ring by both hands to form a kinematic pair. The square column can slide along the square through groove. At the same time, the handle end of the threaded handle is pulled radially outward until interference occurs and it cannot move further. Then, the threaded cover is rotated until the square bottom surface of the threaded cover coincides with the upper surface of the square boss on the holding ring. The fastening screw passes through the 4 counterbores on the threaded cover and is screwed into the threaded blind hole on the holding ring. By analogy, the assembly of 4 screw handles, 4 sliding supports, 4 threaded covers, and 16 fastening screws is completed in sequence. When the two holding rings are closed, the disassembly and assembly pin is sequentially inserted into the semi-long circular groove on one holding ring and the through hole on the protruding boss of the other holding ring to form a clearance fit, and at the same time, the two holding rings are locked. At this time, the circular rings of the two holding rings exactly form a complete circle.

[0056] The specific usage method of the present invention for the tooling is as follows:

[0057] Step 1: Rotate the 4 handles outward until the diameter of the circle formed by the arcs at the bottoms of the 4 sliding supports is the largest. Then, pull out the disassembly and assembly pin to open the two holding rings, and insert the open end of one holding ring circumferentially along the circumference of the projectile body into the approximate position for installing the adapter below the projectile body for standby.

[0058] Step 2: First, install the two adapters on the upper side of the projectile body. Under the action of gravity, these two adapters will not leave the projectile body. Then, close the two retaining rings to hold the projectile body, and at the same time insert the disassembly and assembly pins into the upper semi-elliptical grooves of the retaining rings and the through holes on the protruding bosses. Release both hands. The tooling holds the projectile body, and the arc bottoms of the two sliding supports on the upper side initially press against the two adapters on the upper side of the projectile body. Then, cooperate with both hands to assemble the two adapters on the lower side of the projectile body one by one. When assembling the lower-side adapter, first insert the adapter into the inner buckle of the retaining ring with both hands and buckle it on the projectile body. Then, hold one hand to prevent the adapter from falling off, and rotate the threaded handle at the corresponding part with the other hand to move the arc at the bottom of the sliding support towards the central axis of the retaining ring until it slightly contacts the adapter. Release both hands and complete the preliminary assembly of the other adapter on the lower side of the projectile body in the same way. Then, cooperate with both hands to rotate and adjust the 4 threaded handles so that the arcs at the bottoms of the 4 sliding supports fit tightly against the outer circumferences of the 4 adapters, as Figures 11 - 12 shown.

[0059] Step 3: As Figure 13 shown, operate the projectile loading equipment to normally perform the operation of inserting the projectile body into the launch tube. Pause the insertion into the tube when the adapter enters the launch tube by more than 15 mm and before the launch tube opening collides with this tooling; as Figure 14 shown. Pull out the disassembly and assembly pins and open the two retaining rings. Withdraw the tooling from the periphery of the projectile body and then continue to operate the projectile loading equipment to complete the entire insertion into the tube operation.

Claims

1. A tool for assembling a projectile adapter into a barrel, characterized in that: It comprises two holding rings (3), four screw handles (4), four sliding supports (5), four threaded covers (6), a plurality of fastening screws (7), a rotating shaft pin (8) and a disassembly pin (9); The holding ring (3) is a semicircular ring structure, symmetrical about its central plane in the axial direction, and has a weight-reducing groove (35) in the middle; the center of the upper end of the holding ring (3) is a semi-long circular groove (31), the lower end of the holding ring (3) is a protruding boss (33), and there are upper through holes (32) on both sides of the semi-long circular groove (31), and there is a lower through hole (34) on the protruding boss (33); the center lines of the upper through hole (32) and the lower through hole (34) are symmetrical about the central axis of the holding ring (3); two square bosses (36) are radially extended outward from the outer circumference of the holding ring (3), the center lines of the two square bosses (36) intersect with the central axis of the inner arc surface of the holding ring (3), and the angle between the center lines of the two square bosses (36) is 90°; and a square groove (361) is provided in the center of the two square bosses (36); A threaded cover (6) is fixedly mounted on the upper end of each square boss (36) of the holding ring (3), wherein the bottom of the threaded cover (6) is square, a cylinder is provided at the center of the upper surface of the square bottom, a threaded through hole is provided at the center of the cylinder, and the threaded through hole passes through the bottom of the threaded cover (6); The sliding support (5) is inserted from the lower end of the square boss (36) of the holding ring (3). The upper end of the sliding support (5) is an inverted "T"-shaped structure, with a square column (52) at the upper part and a rectangular plate (51) at the lower part. The square column (52) is fixedly installed at the center of the rectangular plate (51). The lower surface of the rectangular plate (51) is an arc that matches the adapter (2). The top of the square column (52) at the upper part of the sliding support (5) passes through an inverted "T"-shaped through groove (53) at the front and back. The bottom surface of the rectangular plate (51) of the sliding support (5) is an arc, and the diameter of the arc matches the outer diameter of the adapter. The screw handle (4) is composed of a handle, a polished rod, and a threaded rod from top to bottom. A thin rod extends from the top of the upper polished rod to the left and right sides respectively and is used as a handle. The two threaded rods have the same specifications. The nominal diameter of the thread is smaller than the outer diameter of the upper polished rod, and the diameter of the lower polished rod is smaller than the minor diameter of the threaded rod. The screw handle (4) is screwed into the center of the threaded cover (6), and the lower end of the screw handle (4) is connected to the upper end of the sliding support (5). The lower end of the screw handle (4) is inserted into the inverted "T"-shaped through groove (53) of the square column (52) of the sliding support (5); The two holding rings (3) are connected to form a complete ring, and the protruding boss (33) of one holding ring (3) is inserted into the semi-long circular groove (31) of the other holding ring (3) and connected by a rotating shaft pin (8); the other ends of the two holding rings are connected by a disassembly pin (9).

2. A method for assembling a projectile adapter into a barrel using the tooling of claim 1, characterized in that: The following steps are included: Step 1: Rotate the four screw handles (4) outward until the diameter of the circle formed by the arc at the bottom of the four sliding supports (5) is the largest, then pull out the disassembly pin (9) to open the two rings (3), and insert the open end of one ring (3) along the circumference of the body (1) into the approximate installation position of the adapter (2) below the body (1) for standby use; Step 2: Install the bosses (21) of the two adapters (2) on the upper side of the body (1) into the square grooves (11) of the body (1). Under the action of gravity, the two adapters (2) will not leave the body (1); then close the two holding rings (3) to hold the body (1), and at the same time insert the disassembly pin (9) into the lower through-hole (34) of the upper semi-long circular groove (31) of the holding ring (3) and the upper line through-hole (32) on the protruding boss (33). Release both hands, hold the body (1) with the tool, and preliminarily press the two adapters (2) on the upper side of the body (1) with the arc bottom surfaces of the two upper sliding supports (5). Then, use both hands to assemble the two adapters (2) on the lower side of the body (1) one by one. When assembling the lower adapter (2), first use both hands to insert the adapter into the circumference of the holding ring and buckle it on the elastic body (1). Then, use one hand to hold the adapter (2) to prevent it from falling off. Use the other hand to rotate the screw handle (4) at the corresponding position to move the arc at the bottom of the sliding support (5) toward the central axis of the holding ring (3) until it slightly contacts the adapter. Release both hands and repeat this process to complete the preliminary assembly of another adapter (2) on the lower side of the elastic body (1). Then, use both hands to rotate and adjust the four screw handles (4) so that the arcs at the bottom of the four sliding supports (5) are tightly fitted with the outer circumferences of the four adapters (2). Step 3: Operate the loading device of the projectile (1) to push the projectile (1) into the launch tube normally, and stop inserting the projectile into the launch tube when the adapter enters the launch tube for more than 15 mm and before the launch tube mouth collides with the tooling. Pull out the disassembly pin (9) to open the two holding rings (3), and pull the two holding rings (3) out from the outer periphery of the projectile (1), and then continue to operate the loading device of the projectile (1) until the projectile is completely inserted into the tube.

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