CN108950658B

CN108950658B - Multifunctional electroplating device

Info

Publication number: CN108950658B
Application number: CN201811048729.0A
Authority: CN
Inventors: 王建忠; 燕良恒; 王志龙
Original assignee: CHANGDE LIANJIA MACHINERY Co Ltd
Current assignee: CHANGDE LIANJIA MACHINERY Co Ltd
Priority date: 2018-09-10
Filing date: 2018-09-10
Publication date: 2020-02-14
Anticipated expiration: 2038-09-10
Also published as: CN108950658A

Abstract

The invention discloses a multifunctional electroplating device, which comprises an electroplating bath, wherein a push-closing movable door is arranged on the electroplating bath, a left half cell body and a right half cell body are arranged in the electroplating bath, a sliding sleeve body is arranged at the bottom of the left half cell body, and the bottom end of the sliding sleeve body is slid in the electroplating bath in a sliding way; a screw rod for driving the sliding sleeve body to slide left and right is sleeved in the sliding sleeve body in a penetrating manner, the screw rod is connected with a servo motor, and the servo motor is fixedly arranged on the electroplating bath; the right half tank body is fixedly arranged at the bottom of the electroplating bath, a concave groove is formed in the bottom of the right half tank body, and the bottom of the left half tank body is slidably sleeved in the concave groove in the bottom of the right half tank body; all be equipped with the anode material on half cell body on the left side and the right half cell body, the top of half cell body on the left side and the top of half cell body on the right side all are equipped with leads positive subassembly, and two are led positive subassemblies and are the symmetry setting, lead and be equipped with the negative pole point that is used for touching the stock work piece on the positive subassembly. The multifunctional electroplating device has the advantages of safe operation, good electroplating effect, high working efficiency, strong adaptability and the like.

Description

Multifunctional electroplating device

Technical Field

The invention relates to the technical field of electroplating, in particular to a multifunctional electroplating device.

Background

Electroplating is a process of plating a layer of other metal alloy thin layer on the surface of a metal workpiece by utilizing the electrolysis principle, thereby preventing the surface of the metal workpiece from being oxidized and improving the performances of wear resistance, conductivity, light reflection, corrosion resistance and the like. The prior long-rod workpiece electroplating operation has the following defects: the height of a common processing workshop is about 8 meters generally, and the electroplating operation of long-rod workpieces with the length of 6 meters or more can only be carried out in an underground electroplating pool due to the limitation of the height of the common processing workshop. The electroplating pool is generally positioned below the ground level, and needs to dig a pool with a certain depth and a certain area, so that the construction period of the project is long, and the project amount is large. Secondly, the electroplating solution to be stored in the tank has certain corrosivity during the electroplating operation, so that the electroplating tank needs to be waterproof and leakproof so as to prevent the electroplating solution from immersing into underground water to cause underground water pollution, and the existing environmental protection department generally does not allow the deep digging of the electroplating tank. In addition, because the size of the electroplating pool is fixed, the anode-cathode distance is not adjustable, so that the electroplating effect is poor and the adaptability is poor. In addition, workpieces to be plated need to be soaked in an electroplating pool, and special hoisting equipment is needed for placing the workpieces before plating and taking the workpieces out after plating, so that time and labor are wasted, and certain potential safety hazards exist.

Disclosure of Invention

Aiming at the problems existing in the electroplating of the long-rod workpiece at present, the invention provides the multifunctional electroplating device which is safe in operation, good in electroplating effect, high in working efficiency and strong in adaptability.

In order to achieve the purpose, the invention adopts the following technical scheme:

a multifunctional electroplating device is characterized by comprising an electroplating bath (1), wherein a push-close movable door (19) is arranged on the electroplating bath (1), a left half bath body (11) and a right half bath body (12) are arranged in the electroplating bath (1), a sliding sleeve body (111) is arranged at the bottom of the left half bath body (11), and the bottom end of the sliding sleeve body (111) is slidably sleeved at the bottom of the electroplating bath (1); a screw rod (112) for driving the sliding sleeve body (111) to slide left and right is sleeved in the sliding sleeve body (111) in a penetrating manner, the screw rod (112) is connected with a servo motor (113), and the servo motor (113) is fixedly arranged on the electroplating bath (1); the right half tank body (12) is fixedly arranged at the bottom of the electroplating tank (1), a concave groove is formed at the bottom of the right half tank body (12), and the bottom of the left half tank body (11) is slidably sleeved in the concave groove at the bottom of the right half tank body (12) to form an integral tank for containing electrolyte (2); all be equipped with anode material (13) on half cell body (11) in a left side and half cell body (12) on the right side, the top of half cell body (11) in a left side and the top of half cell body (12) on the right side all are equipped with and are used for leading-in and right leading positive subassembly (14) of stock work piece (3), and two are led positive subassembly (14) and are the symmetry setting, are equipped with the negative pole point that is used for touching stock work piece (3) on leading positive subassembly (14).

Furthermore, the left half groove body (11) and the right half groove body (12) are both of a square structure, and the end part of the right half groove body (12) is provided with a sealing and leakage-proof material.

Further, the two symmetrically-arranged guide assemblies (14) comprise a telescopic hydraulic oil cylinder (141) and a semi-ring elastic part (142), fixed ends of the two telescopic hydraulic oil cylinders (141) are respectively arranged on the left semi-groove body (11) and the right semi-groove body (12), the two semi-ring elastic parts (142) are respectively arranged at telescopic ends of the two telescopic hydraulic oil cylinders (141), and when the two telescopic hydraulic oil cylinders (141) of the two guide assemblies (14) extend, the two semi-ring elastic parts (142) are close to each other and lead in and centralize the clamping long rod workpiece (3).

Furthermore, an anti-leakage groove (15) is arranged below the electroplating bath (1), the electroplating bath (1) is sleeved on the top end of the anti-leakage groove (15), a vibrator (16) is connected between the electroplating bath (1) and the anti-leakage groove (15), a through hole (17) used for communicating the anti-leakage groove (15) is formed in the bottom end of the electroplating bath (1), and an electric valve (18) is arranged at the through hole (17).

Furthermore, a clean room (4) for storing and purifying the electrolyte (2) is communicated between the electroplating tank (1) and the leakage-proof tank (15) at the outer sides of the electroplating tank and the leakage-proof tank.

Furthermore, a liquid inlet pump (41) is communicated between the top of the net storage chamber (4) and the leakage-proof groove (15), and a liquid outlet pump (42) is communicated between the bottom of the net storage chamber (4) and the top of the right half groove body (12).

Further, the upper portion of the net deposit room (4) is provided with a filter (43), the filter (43) divides the net deposit room (4) into an upper cavity and a lower cavity, the upper cavity of the net deposit room (4) is communicated with the leakage-proof groove (15), and the lower cavity of the net deposit room (4) is communicated with the top of the right half groove body (12).

Furthermore, a hoisting mechanism (5) for erecting and hoisting the long rod workpiece (3) is arranged on the outer side of the electroplating bath (1).

Further, the hoisting mechanism (5) comprises a movable base (51), a rotary table (52), a lifting jack (53) and a horizontal rod (54), wherein the rotary table (52) is fixedly arranged on the top surface of the movable base (51), the lifting jack (53) is vertically arranged, the bottom end of the lifting jack is arranged on the top surface of the rotary table (52), the top end of the lifting jack is fixedly connected to the central part of the horizontal rod (54), fixed pulleys (55) are uniformly arranged at two ends of the horizontal rod (54), two winches (56) are arranged on the horizontal rod (54), steel wire ropes (57) are arranged in the two winches (56), and the extending ends of the two steel wire ropes (57) are respectively wound around the corresponding fixed pulleys (55) and are respectively connected with a clamp (58) for clamping the long rod workpiece (3).

Furthermore, the number of the movable doors (19) on the electroplating bath (1) is two, the movable doors are respectively positioned on the front side and the rear side of the electroplating bath (1), and the positions of the movable doors respectively correspond to the closed crack of the left half bath body (11) and the right half bath body (12).

Compared with the prior art, the invention has the advantages that:

1. the electroplating bath is an external structure and is positioned on the ground, an underground pool does not need to be excavated, the project input amount is reduced, and the project construction time is shortened.

2. The electroplating bath is arranged into a left half bath body and a right half bath body, so that the space distance can be greatly saved; open the dodge gate on the plating bath, with left and right two half formula cell bodies separation back, the long thick stick work piece of processing can get into the plating bath from the side of cell body to solved because of receiving the restriction of workshop height, long thick stick work piece can't realize that ground is electroplated and can only excavate the problem that the underground tank was electroplated, also avoided the plating solution to pollute groundwater simultaneously and lead to environmental pollution, environmental protection punishment scheduling problem.

3. The end part of the right half groove body is provided with a sealing and leakage-proof material, so that the left half groove body and the right half groove body are kept in close contact in the relative sliding adjustment process; and the electroplating bath outside the two half bath bodies can also form double-layer protection, so the electroplating solution can not directly leak to the outside of the bath body but enter the leakage-proof tank and finally flow to the clean room.

4. Under the action of a servo motor driving the screw rod, the screw rod drives the sliding sleeve body, and the sliding sleeve body drives the left half groove body to be close to or far away from the right half groove body; and under the action of the telescopic hydraulic oil cylinder, the distance between the anode materials of the left half tank body and the right half tank body relative to the cathode point can be adjusted, and the electroplating quality and adaptability are improved.

5. The filter is arranged in the clean room, and the recovered electroplating solution can be filtered by the filter, so that the clean electroplating solution without impurities can be input into the electroplating bath for recycling, the waste is reduced, the pollution is reduced, and the cost is greatly saved.

6. The turntable can drive the horizontal rod to rotate by taking the central part as the center of a circle, when a long rod workpiece on the right clamp is electroplated, the left clamp can simultaneously clamp one end of another long rod workpiece, and the vertical long rod workpiece is lifted through a corresponding winch and a steel wire rope; after the long rod workpiece on the right fixture is electroplated, the lifting jack is started, the long rod workpieces on the two fixtures are lifted simultaneously, when the height reaches a certain value, the rotary table is rotated, the positions of the two fixtures are exchanged, the lifting jack is lowered again, the other long rod workpiece enters the electrolyte for electroplating, and the work efficiency can be greatly improved through the staggered conversion.

Drawings

FIG. 1 is a schematic structural view of the present invention when plating long rod workpieces;

FIG. 2 is a schematic view of the construction of the present invention in the erection of an elongated pole workpiece;

FIG. 3 is a schematic structural diagram of the present invention for hoisting long rod workpieces;

FIG. 4 is a schematic structural view of the left half tank body and the right half tank body in the invention after being sleeved;

in the figure: 1. an electroplating bath; 11. a left half tank body; 111. a sliding sleeve body; 112. a screw rod; 113. a servo motor; 12. a right half trough body; 13. an anode material; 14. a pilot assembly; 141. a telescopic hydraulic oil cylinder; 142. a semi-annular body elastic member; 15. a leakage-proof groove; 16. a vibrator; 17. a through hole; 18. an electrically operated valve; 19. a movable door; 2. an electrolyte; 3. a long rod workpiece; 4. a clean room; 41. a liquid inlet pump; 42. a liquid outlet pump; 43. a filter; 5. a hoisting mechanism; 51. moving the base; 52. a turntable; 53. lifting jacks; 54. a horizontal bar; 55. a fixed pulley; 56. a winch; 57. a wire rope; 58. and (4) clamping.

Detailed Description

The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the multifunctional electroplating apparatus of the present embodiment includes an electroplating tank 1, wherein the electroplating tank 1 is provided with two movable doors 19 capable of being pushed and closed, and the two movable doors 19 are respectively located at the front side and the rear side of the electroplating tank 1. The electroplating bath 1 is internally provided with a left half bath body 11 and a right half bath body 12, the left half bath body 11 and the right half bath body 12 are both of a square structure, and the end part of the right half bath body 12 is provided with a sealing and leakage-proof material. The bottom of the left half tank body 11 is provided with a sliding sleeve body 111, and the bottom end of the sliding sleeve body 111 is slidably sleeved at the bottom of the electroplating tank 1; a screw rod 112 for driving the sliding sleeve body 111 to slide left and right is sleeved in the sliding sleeve body 111 in a penetrating manner, the screw rod 112 is connected with a servo motor 113, and the servo motor 113 is fixedly arranged on the electroplating tank 1; the right half tank body 12 is fixedly arranged at the bottom of the electroplating tank 1, a concave groove is formed at the bottom of the right half tank body 12, the left half tank body 11 is slidably sleeved in the concave groove at the bottom of the right half tank body 12, as shown in fig. 4, so as to form an integral tank for containing the electrolyte 2, and the structure can ensure that the two half tank bodies are combined more firmly. The positions of the two movable doors 19 respectively correspond to the two side seams of the closed left half groove body 11 and the closed right half groove body 12. All be equipped with anode material 13 on half cell body 11 on the left side and half cell body 12 on the right side, the top of half cell body 11 on the left side and the top of half cell body 12 on the right side all are equipped with and are used for leading-in and right the leading positive subassembly 14 of stock work piece 3, and two are led positive subassemblies 14 and are the symmetry setting, are equipped with the negative pole point that is used for touching stock work piece 3 on leading positive subassembly 14. In this embodiment, the two symmetrically arranged guiding assemblies 14 each include a telescopic hydraulic cylinder 141 and a half-ring elastic member 142, the fixed ends of the two telescopic hydraulic cylinders 141 are respectively installed in the left half-groove body 11 and the right half-groove body 12, the two half-ring elastic members 142 are respectively installed at the telescopic ends of the two telescopic hydraulic cylinders 141, and when the two telescopic hydraulic cylinders 141 of the two guiding assemblies 14 extend, the two half-ring elastic members 142 approach each other and guide and centralize the long rod clamping workpiece 3. In the electroplating device, the electroplating bath 1 is an external structure and is positioned above the ground, so that the pool is prevented from being dug underground, the engineering quantity is reduced, and the engineering time is shortened. The left half groove body 11 is slid in a concave groove at the bottom of the right half groove body 12, and a sealing and leakage-proof material is arranged at the end part of the right half groove body 12, so that the left half groove body 11 and the right half groove body 12 can be kept in close contact in the relative sliding adjustment process. Under the action of the servo motor 113 driving the screw rod 112, the screw rod 112 drives the sliding sleeve body 111, the sliding sleeve body 111 drives the left half tank body 11 to be close to or far away from the right half tank body 12, and under the action of the telescopic hydraulic oil cylinder 141, the distance between the anode material 13 of the left half tank body 11 and the anode material 13 of the right half tank body 12 relative to the cathode point is adjustable, so that the electroplating effect and the adaptability can be improved.

In this embodiment, the two symmetrically arranged guiding assemblies 14 each include a telescopic hydraulic cylinder 141 and a half-ring elastic member 142, the fixed ends of the two telescopic hydraulic cylinders 141 are respectively installed in the left half-groove body 11 and the right half-groove body 12, the two half-ring elastic members 142 are respectively installed at the telescopic ends of the two telescopic hydraulic cylinders 141, and when the two telescopic hydraulic cylinders 141 of the two guiding assemblies 14 extend, the two half-ring elastic members 142 approach each other and guide and centralize the long rod clamping workpiece 3.

In the embodiment, a leakage-proof groove 15 is arranged below the electroplating bath 1, the electroplating bath 1 is sleeved on the top end of the leakage-proof groove 15, a vibrator 16 is connected between the electroplating bath 1 and the leakage-proof groove 15, a through hole 17 used for communicating the leakage-proof groove 15 is formed in the bottom end of the electroplating bath 1, and an electric valve 18 is arranged at the through hole 17. In the structure, the vibrator 16 can drive the electrolytic tank 1 to vibrate, so that the electrolyte 2 in the electrolytic tank 1 is uniformly mixed, and the electroplating quality is improved.

In this embodiment, a clean room 4 for storing and purifying the electrolyte 2 is communicated between the plating tank 1 and the leak-proof tank 15 at the outer side thereof. A liquid inlet pump 41 is communicated between the top of the clean room 4 and the leakage-proof groove 15, and a liquid outlet pump 42 is communicated between the bottom of the clean room 4 and the top of the right half groove body 12. The upper portion of net deposit room 4 is equipped with filter 43, filter 43 will net deposit room 4 divides into upper and lower cavity, the upper cavity of net deposit room 4 with leak protection groove 15 communicates, the lower cavity of net deposit room 4 with the top of right half cell body 12 communicates.

In this embodiment, a hoisting mechanism 5 for erecting and hoisting a long rod workpiece 3 is disposed on the outer side of the electroplating bath 1, the hoisting mechanism 5 includes a movable base 51, a rotary table 52, a lifting jack 53 and a horizontal rod 54, the rotary table 52 is fixedly mounted on the top surface of the movable base 51, the lifting jack 53 is vertically disposed, the bottom end of the lifting jack 53 is mounted on the top surface of the rotary table 52, the top end of the lifting jack is fixedly connected to the central portion of the horizontal rod 54, fixed pulleys 55 are uniformly disposed at both ends of the horizontal rod 54, two winches 56 are disposed on the horizontal rod 54, steel wire ropes 57 are disposed in the two winches 56, and the extending ends of the two steel wire ropes 57 respectively bypass the corresponding fixed pulleys 55 and are respectively connected with a clamp 58 for clamping the long rod workpiece 3. In the structure, the movable base 51 can drive other parts of the whole hoisting mechanism 5 to move, at least move left and right, the turntable 52 can drive the horizontal rod 54 to rotate by taking the central part as the center of a circle, when the long-rod workpiece 3 on the right clamp 58 is electroplated, the left clamp 58 can simultaneously clamp one end of another long-rod workpiece 3, the long-rod workpiece 3 is lifted and erected through the corresponding winch 56 and the steel wire rope 57, after the electroplating of the long-rod workpiece 3 on the right clamp 58 is finished, the lifting jack 53 is started, and the long-rod workpieces 3 on the two clamps 58 are lifted simultaneously; when the height reaches a certain value, the rotary disc 52 is rotated to exchange the positions of the two clamps 58, and then the lifting jack 53 is lowered to enable the other long rod workpiece 3 to enter the electrolyte 2 for electroplating, so that the working efficiency is improved.

After the electroplating is finished, the left half tank body 11 is slowly slid away from the right half tank body 12, the electric valve 18 is opened, the electroplating solution 2 in the electroplating tank 1 slowly flows into the leakage-proof tank 15 through the through hole 17, then enters the clean room 4 under the action of the liquid inlet pump 41, and is filtered by the filter 43 to remove impurities therein. When the whole electroplating solution 2 is injected into the clean room 4, the electric valve 18 is closed, the movable doors 19 on the front and rear sides of the electroplating bath 1 are opened, the turntable 52 of the hoisting mechanism 5 is rotated, the positions of the two clamps 58 are switched, the lifting jack 53 is lowered, the long rod workpiece 3 which is electroplated on the clamp 58 is taken out from the movable door 19 on one side, and the long rod workpiece 3 which is not electroplated on the clamp 58 on the other end enters the electroplating bath 1 from the movable door 19 on the other side. After the position exchange is finished, the left half-cell body 11 slowly slides to the right half-cell body 12 until the two half-cell bodies are completely closed, and the filtered electroplating solution 2 enters the electroplating bath 1 from the clean room 4 under the action of the liquid outlet pump 42 to continue the electroplating operation. The steps are repeated in this way, and the electroplating of the long rod workpiece 3 can be finished in a staggered way.

In addition, even if a sealing and leakage-preventing material is installed, a small amount of the electrolyte 2 may leak from the side or the bottom, and the leakage-preventing groove 15 is provided below the plating tank 1, and the plating tank 1 located outside the two half-tanks can form a double protection. When the electric valve 18 is opened, the leaked plating solution 2 directly flows into the leakage-proof tank 15 through the through hole 17, and does not overflow to the space outside the plating apparatus, thereby ensuring that no environmental pollution occurs. When the liquid level of the electroplating solution 2 in the electroplating bath 1 is lower than the liquid level required by electroplating due to leakage, the filtered electroplating solution can be timely supplemented from the clean room 4, so that the electroplating solution in the electroplating bath 1 meets the electroplating operation amount.

Claims

1. The multifunctional electroplating device is characterized by comprising an electroplating bath (1), wherein a push-close movable door (19) is arranged on the electroplating bath (1), a left half bath body (11) and a right half bath body (12) are arranged in the electroplating bath (1), a sliding sleeve body (111) is arranged at the bottom of the left half bath body (11), and the bottom end of the sliding sleeve body (111) is slidably sleeved at the bottom of the electroplating bath (1); a screw rod (112) for driving the sliding sleeve body (111) to slide left and right is sleeved in the sliding sleeve body (111) in a penetrating manner, the screw rod (112) is connected with a servo motor (113), and the servo motor (113) is fixedly arranged on the electroplating bath (1); the right half tank body (12) is fixedly arranged at the bottom of the electroplating tank (1), a concave groove is formed at the bottom of the right half tank body (12), and the bottom of the left half tank body (11) is slidably sleeved in the concave groove at the bottom of the right half tank body (12) to form an integral tank for containing the electrolyte (2); all be equipped with anode material (13) on half cell body (11) in a left side and half cell body (12) on the right side, the top of half cell body (11) in a left side and the top of half cell body (12) on the right side all are equipped with and are used for leading-in and right leading positive subassembly (14) of stock work piece (3), and two are led positive subassembly (14) and are the symmetry setting, are equipped with the negative pole point that is used for touching stock work piece (3) on leading positive subassembly (14).

2. The multifunctional electroplating device as claimed in claim 1, wherein the left half tank body (11) and the right half tank body (12) are both of a square structure, and the end part of the right half tank body (12) is provided with a sealing and leakage-proof material.

3. The multifunctional electroplating device according to claim 1 or 2, wherein the two symmetrically arranged guiding assemblies (14) respectively comprise a telescopic hydraulic oil cylinder (141) and a half-ring elastic member (142), fixed ends of the two telescopic hydraulic oil cylinders (141) are respectively arranged on the left half-groove body (11) and the right half-groove body (12), and the two half-ring elastic members (142) are respectively arranged at telescopic ends of the two telescopic hydraulic oil cylinders (141).

4. The multifunctional electroplating device according to claim 3, wherein a leakage-proof groove (15) is arranged below the electroplating bath (1), the electroplating bath (1) is sleeved on the top end of the leakage-proof groove (15), a vibrator (16) is connected between the electroplating bath (1) and the leakage-proof groove (15), a through hole (17) for communicating the leakage-proof groove (15) is formed in the bottom end of the electroplating bath (1), and an electric valve (18) is arranged at the through hole (17).

5. The multipurpose plating apparatus as recited in claim 4, wherein a clean room (4) for storing and purifying the electrolyte (2) is communicated between the plating tank (1) and the leak-proof tank (15) at the outer sides thereof.

6. The multifunctional electroplating device according to claim 5, wherein a liquid inlet pump (41) is communicated between the top of the clean room (4) and the leakage-proof groove (15), and a liquid outlet pump (42) is communicated between the bottom of the clean room (4) and the top of the right half groove body (12).

7. The multifunctional electroplating device according to claim 5, wherein a filter (43) is arranged at the upper part of the clean room (4), the filter (43) divides the clean room (4) into an upper chamber and a lower chamber, the upper chamber of the clean room (4) is communicated with the leakage-proof groove (15), and the lower chamber of the clean room (4) is communicated with the top of the right half-groove body (12).

8. The multifunctional electroplating apparatus according to claim 1, wherein the plating tank (1) is provided at the outside thereof with a hoisting mechanism (5) for erecting and hoisting a long-rod workpiece (3).

9. The multifunctional electroplating device according to claim 8, wherein the hoisting mechanism (5) comprises a movable base (51), a rotary table (52), a lifting jack (53) and a horizontal rod (54), the rotary table (52) is fixedly mounted on the top surface of the movable base (51), the lifting jack (53) is vertically arranged, the bottom end of the lifting jack is mounted on the top surface of the rotary table (52), the top end of the lifting jack is fixedly connected to the central part of the horizontal rod (54), fixed pulleys (55) are uniformly arranged at both ends of the horizontal rod (54), two winches (56) are arranged on the horizontal rod (54), steel wire ropes (57) are arranged in the two winches (56), and the extending ends of the two steel wire ropes (57) respectively bypass the corresponding fixed pulleys (55) and are respectively connected with a clamp (58) for clamping a long rod workpiece (3).

10. The multifunctional electroplating device as claimed in claim 1, wherein the number of the movable doors (19) on the electroplating tank (1) is two, and the movable doors are respectively positioned on the front side and the rear side of the electroplating tank (1) and respectively correspond to the closed crack of the left half tank body (11) and the right half tank body (12).