Centering device used in process of feeding cladding shell into cylinder

Abstract

The invention discloses a centering device used in the process that a shell enters a cylinder. The centering device comprises an air suspension type centering platform, a transverse moving module and a locking mechanism. The air suspension type centering platform and the transverse moving module are connected through a guide rod, and the guide rod can relatively slide in the axial direction of the guide rod. According to the invention, the problem that the centering platform and the transverse moving module are too large in size and weight can be improved, the design height of the platform can be reduced under the same load, the weight of the platform is reduced, the applicability of the centering platform in the production process is improved, the working intensity of operators is reduced, and the operation working condition of the operators is improved.

Description

Technical Field

[0001] The invention relates to a centering device for a coating shell entering a cylinder, belonging to the technical field of solid propellant charging. Background Art

[0002] There are three working conditions when the coated shell is put into the cylinder: (1) the multi-shot assembly shell with an integral bracket is put into the cylinder; (2) the multi-shot assembly shell without an integral bracket is put into the cylinder; (3) the large single-shot assembly shell is put into the cylinder. The traditional centering method often takes 4 evenly distributed characteristic points on the material distribution nozzle or the heightening section, and uses a tape measure to measure the size between the characteristic points and the casting cylinder. If the difference between the 4 characteristic dimensions is within the allowable range, the assembly shell is put into the cylinder. Otherwise, the moving direction and offset dimension are calculated based on the 4 characteristic dimensions, the placement position of the assembly shell is adjusted, and the 4 characteristic dimension measurements are repeated until the difference between the 4 characteristic dimensions reaches the allowable range. This method is inefficient and increases the risk during repeated lifting. During the centering process of the coated shell, the operator often needs to enter a limited space, which poses a risk of falling. Summary of the invention

[0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art and provide a centering device for the process of a covering shell entering a cylinder, which reduces the platform design height and the platform design weight compared to a traditional mobile platform and improves the platform applicability.

[0004] The technical solution of the present invention is:

[0005] The present invention discloses a centering device for a shell entering a cylinder, comprising: an air suspension centering platform, a transverse movement module and a locking mechanism; wherein:

[0006] The air suspension type centering platform comprises a support foot, a suspension air cushion, a guide plate, a support frame and a top plate; wherein the support foot and the suspension air cushion are installed at the bottom of the support frame, the support frame is installed at the bottom of the top plate, the guide plate is installed at the bottom of the top plate, and the end surface of the guide plate is provided with a plurality of guide holes, and sleeves are installed in the guide holes;

[0007] The lateral movement module includes a driving device and a guide platform; the guide platform is provided with a guide column, which matches the sleeve of the guide plate, and when the air suspension centering platform is guided to move up and down, the guide column and the sleeve can slide freely; the driving device drives the guide platform to move in the horizontal direction, and the guide platform drives the top plate to move in the same direction through the guide column;

[0008] The locking mechanism is installed on the support foot to ensure that the top plate does not move relative to the traverse module after it is centered.

[0009] Furthermore, in the above-mentioned device, the support frame is a frame structure, including a first support frame and a second support frame; one end of the first support frame is rigidly connected to the top plate, and the other end is fixedly connected to the support foot; a number of first support frames are evenly and symmetrically distributed, and are in contact with the installation plane through the support feet; one end of the second support frame is rigidly connected to the top plate, and the other end is fixedly connected to the suspended air cushion; a number of second support frames are evenly and symmetrically distributed.

[0010] Furthermore, in the above device, when the suspension air cushion is inflated, the second support frame contacts the installation plane through the suspension air cushion; when the suspension air cushion is deflated, the suspension air cushion is separated from the installation plane.

[0011] Furthermore, in the above device, the maximum height of the suspended air cushion after inflation is less than the maximum length of the guide column in the sleeve.

[0012] Furthermore, in the above device, the driving device includes an X-drive device and a Y-drive device; wherein the guide platform is fixedly connected to the Y-axis drive device; the upper surface of the X-axis drive device and the lower surface of the Y-axis drive device are fixedly connected; the X-axis drive device drives the guide platform and the Y-axis drive device to move along the X-axis direction; and the Y-axis drive device drives the guide platform to move along the Y-axis direction.

[0013] Furthermore, in the above device, the sleeve is replaceable.

[0014] Furthermore, in the above device, the material of the sleeve is copper.

[0015] Furthermore, in the above device, the gap between the support frame of the air suspension type centering platform and the transverse movement module is determined according to the translation amount of the transverse movement module.

[0016] The present invention discloses a method for centering a shell during a cylinder insertion process, comprising:

[0017] S1: Assemble the air suspension centering platform and the traverse module. After assembly, ensure that the guide column and the sleeve can slide freely; install the locking mechanism on the support feet;

[0018] S2: placing the shell on the upper surface of the air suspension centering platform;

[0019] S3: Start the suspension air cushion to make the air suspension centering platform rise; the traverse module drives the air suspension centering platform to move along the X-axis and Y-axis to make the shell reach the specified center position;

[0020] S4: The air cushion is exhausted, and the air suspension centering platform descends until the support feet touch the working surface;

[0021] S5: The locking mechanism is activated to lock the air suspension centering platform to prevent it from moving during operation.

[0022] The beneficial effects of the present invention and the prior art are:

[0023] (1) The present invention eliminates the potential safety hazards of frequent lifting of the coated shell into the cylinder and the operator entering the casting cylinder to operate. Safety in the production process is related to the health of workers, and sound safety facilities are the basic guarantee for protecting workers. In order to improve the efficiency of the production process, avoid personnel from operating the casting cylinder, and ensure the safety of personnel, the safety level and convenience of operation in the operation process are improved.

[0024] (2) The present invention reduces the height and weight of the centering device, is easy to install and maintain, improves the rigidity of the whole machine, improves the applicability of the whole machine, and ensures the process during the production process.

[0025] (3) Compared with traditional mechanisms, the present invention reduces the possibility of interference with the original mechanism and ensures safety during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic structural diagram of a centering device for a shell entering a cylinder.

[0027] Figure 2 It is a structural schematic diagram of the air-floating centering platform of the present invention.

[0028] Figure 3 It is a structural schematic diagram of the transverse movement module of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 As shown, the present invention discloses a centering device for a shell entering a cylinder, comprising: an air suspension centering platform 1, a transverse movement module 2 and a locking mechanism 3; wherein:

[0031] like Figure 2 As shown, the air suspension type centering platform 1 includes a support foot 4, a suspension air cushion 5, a guide plate 6, a support frame 7 and a top plate 8; wherein the support foot 4 and the suspension air cushion 5 are installed at the bottom of the support frame 7, the support frame 7 is installed at the bottom of the top plate 8, the guide plate 6 is installed at the bottom of the top plate 8, and the end surface of the guide plate 6 is provided with a plurality of guide holes, and sleeves are installed in the guide holes;

[0032] like Figure 3As shown, the lateral movement module 2 includes a driving device and a guide platform 11; the guide platform 11 is provided with a guide column, and the guide column matches the sleeve of the guide plate 6, and when the air suspension centering platform 1 moves up and down, the guide column and the sleeve can slide freely; the driving device drives the guide platform 11 to move in the horizontal direction, and the guide platform 11 drives the top plate 8 to move in the same direction through the guide column;

[0033] The locking mechanism 3 is installed on the supporting foot 4 to ensure that the top plate 8 does not move relative to the transverse movement module 2 after the top plate 8 is centered.

[0034] Preferably, the support frame 7 is a frame structure, including a first support frame and a second support frame; one end of the first support frame is rigidly connected to the top plate 8, and the other end is fixedly connected to the support foot 4; a number of first support frames are evenly and symmetrically distributed, and are in contact with the installation plane through the support foot 4; one end of the second support frame is rigidly connected to the top plate 8, and the other end is fixedly connected to the suspended air cushion 5; a number of second support frames are evenly and symmetrically distributed.

[0035] Preferably, when the suspension air cushion 5 is inflated, the second support frame contacts the installation plane through the suspension air cushion 5; when the suspension air cushion 5 is deflated, the suspension air cushion 5 is separated from the installation plane.

[0036] Preferably, the maximum height of the suspended air cushion 5 after being inflated is less than the maximum length of the guide column in the sleeve.

[0037] Preferably, if Figure 3 As shown, the driving device includes an X-axis driving device 9 and a Y-axis driving device 10; wherein the guide platform 11 is fixedly connected to the Y-axis driving device 10; the upper surface of the X-axis driving device 9 and the lower surface of the Y-axis driving device 10 are fixedly connected; the X-axis driving device 9 drives the guide platform 11 and the Y-axis driving device 10 to move along the X-axis direction; the Y-axis driving device 10 drives the guide platform 11 to move along the Y-axis direction.

[0038] Preferably, the sleeve is replaceable.

[0039] Preferably, the material of the sleeve is copper.

[0040] Preferably, the gap between the support frame 7 of the air suspension type centering platform 1 and the transverse movement module 2 is determined according to the translation amount of the transverse movement module 2 .

[0041] The present invention discloses a method for centering a shell during a cylinder insertion process, comprising:

[0042] S1: Assemble the air suspension centering platform 1 and the lateral movement module 2, and ensure that the guide column and the sleeve can slide freely after assembly; install the locking mechanism 3 on the support foot 4;

[0043] S2: placing the shell on the upper surface of the air suspension type centering platform 1;

[0044] S3: Start the suspension air cushion 5 to make the air suspension centering platform 1 rise; the traverse module 2 drives the air suspension centering platform 1 to move along the X-axis and the Y-axis so that the shell reaches the designated center position;

[0045] S4: the air cushion 5 is exhausted, and the air suspension centering platform 1 descends until the supporting feet 4 contact the working surface;

[0046] S5: The locking mechanism 3 is activated to lock the air suspension centering platform 1 to prevent it from moving during the working process.

[0047] In this embodiment, the guide post and the wear-resistant copper sleeve are installed, and the fit is a clearance fit, and the wear-resistant copper sleeve can move along its axis under the guidance of the guide post.

[0048] After the air cushion 5 is inflated, the air suspension platform 1 rises under the guidance of the guide column, and the friction between the air suspension platform 1 and the ground is greatly reduced.

[0049] The air suspension platform 1 moves under the push of the moving module 2 .

[0050] After the air suspension platform 1 completes the movement, the air cushion 5 is exhausted, and the air suspension platform 1 is lowered into position under the guidance of the guide column.

[0051] After the air suspension platform 1 is lowered into position, the locking mechanism 3 completes the locking, thereby preventing the air suspension platform from moving after it is in position.

[0052] An air cushion is installed on the bottom side of the air-suspended centering platform and a wear-resistant copper sleeve is installed on the top. When compressed air enters the air bag, an air film is formed between the air cushion and the working surface. Since the air film has a lubricating effect, the friction factor between it and the working surface is about 0.002~0.003. Therefore, the resistance between the air-suspended centering platform and the ground is very small, and the transverse movement module only needs a small force to move. After the air-suspended centering platform moves into place, the air cushion is exhausted and the air-suspended centering platform is lowered to the working surface and locked by the locking mechanism.

[0053] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

[0054] The contents not described in detail in the specification of the present invention belong to the common knowledge of the professionals in this field.

Claims

1. A centering device for a shell entering a cylinder, characterized in that: include: An air suspension type centering platform (1), a transverse movement module (2) and a locking mechanism (3); wherein: An air suspension type centering platform (1) comprises a support foot (4), a suspension air cushion (5), a guide plate (6), a support frame (7) and a top plate (8); wherein the support foot (4) and the suspension air cushion (5) are mounted on the bottom of the support frame (7), the support frame (7) is mounted on the bottom of the top plate (8), the guide plate (6) is mounted on the bottom of the top plate (8), and the end surface of the guide plate (6) is provided with a plurality of guide holes, in which sleeves are mounted; The transverse movement module (2) comprises a driving device and a guide platform (11); the guide platform (11) is provided with a guide column, the guide column matches the sleeve of the guide plate (6), and when guiding the air suspension type centering platform (1) to move up and down, the guide column and the sleeve can slide freely; the driving device drives the guide platform (11) to move in a horizontal direction, and the guide platform (11) drives the top plate (8) to move in the same direction through the guide column; The locking mechanism (3) is installed on the supporting foot (4) to ensure that the top plate (8) does not move relative to the transverse movement module (2) after the top plate (8) is centered.

2. A centering device for a shell entering a cylinder according to claim 1, characterized in that: The support frame (7) is a frame structure, comprising a first support frame and a second support frame; one end of the first support frame is rigidly connected to the top plate (8), and the other end is fixedly connected to the support foot (4); a plurality of first support frames are evenly and symmetrically distributed, and are in contact with the installation plane through the support foot (4); one end of the second support frame is rigidly connected to the top plate (8), and the other end is fixedly connected to the suspension air cushion (5); a plurality of second support frames are evenly and symmetrically distributed.

3. A centering device for a shell entering a cylinder according to claim 2, characterized in that: When the suspension air cushion (5) is inflated, the second support frame contacts the installation plane through the suspension air cushion (5); when the suspension air cushion (5) is deflated, the suspension air cushion (5) is separated from the installation plane.

4. A centering device for a shell entering a cylinder according to claim 3, characterized in that: The maximum height of the suspended air cushion (5) after being inflated is less than the maximum length of the guide column in the sleeve.

5. The centering device for the shell entering the cylinder according to claim 1, characterized in that: The driving device comprises an X-axis driving device (9) and a Y-axis driving device (10); wherein the guide platform (11) is fixedly connected to the Y-axis driving device (10); the upper surface of the X-axis driving device (9) and the lower surface of the Y-axis driving device (10) are fixedly connected; the X-axis driving device (9) drives the guide platform (11) and the Y-axis driving device (10) to move along the X-axis direction; and the Y-axis driving device (10) drives the guide platform (11) to move along the Y-axis direction.

6. The centering device for the shell entering the cylinder according to claim 1, characterized in that: The sleeve is replaceable.

7. The centering device for the shell entering the cylinder according to claim 1, characterized in that: The material of the sleeve is copper.

8. The centering device for the shell entering the cylinder according to claim 1, characterized in that: The gap between the support frame (7) of the air suspension type centering platform (1) and the transverse movement module (2) is determined according to the translation amount of the transverse movement module (2).

9. A method for centering a shell during cylinder insertion, characterized in that: include: S1: Assemble the air suspension centering platform (1) and the lateral movement module (2), and ensure that the guide column and the sleeve can slide freely after assembly; install the locking mechanism (3) on the support foot (4); S2: placing the housing on the upper surface of the air suspension type centering platform (1); S3: Start the suspension air cushion (5) to make the air suspension centering platform (1) rise; the lateral movement module (2) drives the air suspension centering platform (1) to move along the X-axis and the Y-axis, so that the shell reaches the designated center position; S4: the air cushion (5) is exhausted, and the air suspension type centering platform (1) descends until the supporting feet (4) contact the working surface; S5: The locking mechanism (3) is activated to lock the air suspension type centering platform (1) to prevent it from moving during the working process.

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