Metal casting surface passivation device and method

Abstract

The invention discloses a metal casting surface passivation device and method.The metal casting surface passivation device comprises a bottom plate, a soaking box is fixedly connected to the upper surface of the bottom plate, a metal passivation solution is placed in the soaking box, a leakage-proof box is arranged on the soaking box, a through hole is formed in the soaking box, and a bearing plate is slidably connected to the interior of the through hole; the device comprises a bearing plate, leakage holes are formed in the bearing plate, a limiting block is fixedly connected to the upper surface of the bearing plate, the longitudinal section of the limiting block is triangular, and an auxiliary supporting device is arranged on the lower surface of the bearing plate. And under the action of the limiting block, the metal casting does not move, in the passivation process, the metal casting is turned over along with the reciprocating motion of the bearing plate, and due to the existence of the limiting block, the metal casting passivation device is suitable for metal castings of various shapes and sizes.

Description

Technical Field

[0001] The invention relates to the technical field of passivation, and in particular to a metal casting surface passivation device and method. Background Art

[0002] Passivation is a method of transforming the metal surface into a state that is not easily oxidized, thereby slowing down the corrosion rate of the metal. The existing passivation method adopts the method of putting the metal casting into a reaction tank containing a passivating agent.

[0003] The existing metal casting surface passivation device and method passivates the metal casting by using a clamp. However, in this method, during use, the clamping position cannot contact the passivation liquid well, which leads to poor passivation effect at some positions. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a metal casting surface passivation device and method, by using a load-bearing plate to support the metal casting, during the passivation process, the metal casting is turned over, thereby avoiding a poor passivation effect, and under the action of a limit block, the metal casting is prevented from moving, and during the passivation process, the reciprocating motion of the load-bearing plate completes the turning, and the presence of the limit block is suitable for metal castings of various shapes and sizes.

[0005] The present invention also provides a surface passivation device for metal castings as mentioned above, comprising: a base plate, an immersion box fixedly connected to the upper surface of the base plate, a metal passivation liquid is placed inside the immersion box, a leak-proof box is arranged on the immersion box, a through hole is arranged on the immersion box, a load-bearing plate is slidably connected to the inside of the through hole, a leakage hole is arranged on the load-bearing plate, a limiting block is fixedly connected to the upper surface of the load-bearing plate, the longitudinal cross-section of the limiting block is triangular, and an auxiliary supporting device is arranged on the lower surface of the load-bearing plate; a paddle plate is slidably connected to the inner surface of the immersion box, the paddle plate is movably connected to the metal casting, a reciprocating mechanism is arranged on the base plate, a push rod is fixedly connected to the outer surface of the load-bearing plate, the output end of the reciprocating mechanism is connected to the push rod, a cleaning device is arranged on the reciprocating mechanism, and a clamping device is arranged on the base plate.

[0006] According to a metal casting surface passivation device provided by the present invention, the reciprocating mechanism includes: a support frame, the upper surface of the support frame is rotatably connected to a drive motor, and the output end of the drive motor is fixedly connected to a transmission shaft.

[0007] According to a metal casting surface passivation device provided by the present invention, a turntable is fixedly connected to the upper surface of the transmission shaft, a fixing bolt is fixedly connected to the turntable, a connecting plate is rotatably connected to the outer surface of the fixing bolt, and the connecting plate is rotatably connected to the push rod.

[0008] According to a metal casting surface passivation device provided by the present invention, the auxiliary support device includes: a support rod, the support rod is fixedly connected to the lower surface of the load-bearing plate, the lower surface of the support rod is rotatably connected to a pulley, and the pulley is in contact with the inner bottom surface of the immersion box.

[0009] According to a metal casting surface passivation device provided by the present invention, the cleaning device comprises: a cleaning box, the cleaning box is fixedly connected to the upper surface of the bottom plate, the cleaning box is provided with a fan and an exhaust hole, and the exhaust hole is provided with a filter.

[0010] According to a metal casting surface passivation device provided by the present invention, the clamping device includes: a base, the upper surface of the base is rotatably connected to a support plate, the lower surface of the support plate is fixedly connected to an electric telescopic rod, the lower surface of the electric telescopic rod is slidably connected to an electric slider, and the outer surface of the electric slider is fixedly connected to a clamping plate.

[0011] A method for passivating the surface of a metal casting comprises the following steps:

[0012] S1. Put the metal casting into the cleaning box and start the fan. The fan blows air to the surface of the metal casting to remove dust on the metal surface.

[0013] S2. Use a clamping device to place the treated metal casting into an immersion tank for passivation;

[0014] S3. After soaking for a period of time, start the drive motor, the drive motor drives the transmission shaft, the transmission shaft drives the turntable, and then drives the connecting plate. Under the rotation of the turntable, the load-bearing plate reciprocates, and the limit block on the load-bearing plate limits the metal casting. With the reciprocating motion of the load-bearing plate, the paddle plate turns the metal casting over.

[0015] Compared with the prior art, the metal casting surface passivation device and method support the metal casting by using a load-bearing plate, and turn the metal casting over during the passivation process, thereby avoiding a poor passivation effect. Under the action of the limit block, the metal casting does not move. During the passivation process, the reciprocating motion of the load-bearing plate completes the turning over, and the presence of the limit block makes it suitable for metal castings of various shapes and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is the overall structure diagram of the metal casting surface passivation device and method of the present invention;

[0018] Figure 2It is a cross-sectional structural diagram of the metal casting surface passivation device and method of the present invention;

[0019] Figure 3 It is a cross-sectional structural diagram of the metal casting surface passivation device and method of the present invention;

[0020] Figure 4 It is a longitudinal cross-sectional structural diagram of the metal casting surface passivation device and method of the present invention;

[0021] Figure 5 The present invention is a metal casting surface passivation device and method Figure 2 Enlarged view of point B in the middle;

[0022] Figure 6 The present invention is a metal casting surface passivation device and method Figure 3 Enlarged view of point E in the middle.

[0023] Legend:

[0024] 1. Bottom plate; 2. Soaking box; 3. Leak-proof box; 4. Through hole; 5. Load-bearing plate; 6. Leakage hole; 7. Limit block; 8. Paddle plate; 9. Push rod; 10. Support frame; 11. Drive motor; 12. Transmission shaft; 13. Turntable; 14. Fixing bolt; 15. Connecting plate; 16. Support rod; 17. Pulley; 18. Cleaning box; 19. Fan; 20. Exhaust hole; 21. Filter; 22. Base; 23. Support plate; 24. Electric telescopic rod; 25. Electric slider; 26. Clamp. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0026] Reference Figure 1-6 The embodiment of the present invention is a metal casting surface passivation device and method, which includes: a bottom plate 1, an immersion box 2 is fixedly connected to the upper surface of the bottom plate 1, a metal passivation liquid is placed inside the immersion box 2, a leak-proof box 3 is arranged on the immersion box 2, a through hole 4 is arranged on the immersion box 2, a load-bearing plate 5 is slidably connected inside the through hole 4, a leakage hole 6 is arranged on the load-bearing plate 5, a limiting block 7 is fixedly connected to the upper surface of the load-bearing plate 5, and the longitudinal cross-section of the limiting block 7 is a triangle.

[0027] The inner surface of the immersion box 2 is slidably connected with a paddle plate 8, which is movably connected to the metal casting. The outer surface of the load-bearing plate 5 is fixedly connected with a push rod 9, and the output end of the reciprocating mechanism is connected to the push rod 9.

[0028] A reciprocating mechanism is arranged on the base plate 1, and the reciprocating mechanism comprises: a support frame 10, the upper surface of the support frame 10 is rotatably connected to a driving motor 11, the output end of the driving motor 11 is fixedly connected to a transmission shaft 12, the upper surface of the transmission shaft 12 is fixedly connected to a turntable 13, a fixing bolt 14 is fixedly connected to the turntable 13, the outer surface of the fixing bolt 14 is rotatably connected to a connecting plate 15, and the connecting plate 15 is rotatably connected to the push rod 9.

[0029] An auxiliary support device is provided on the lower surface of the load-bearing plate 5, and the auxiliary support device includes: a support rod 16, which is fixedly connected to the lower surface of the load-bearing plate 5, and a pulley 17 is rotatably connected to the lower surface of the support rod 16, and the pulley 17 is in contact with the inner bottom surface of the immersion box 2.

[0030] A cleaning device is provided on the reciprocating mechanism, and the cleaning device includes: a cleaning box 18, the cleaning box 18 is fixedly connected to the upper surface of the base plate 1, a fan 19 and an exhaust hole 20 are provided on the cleaning box 18, a filter 21 is provided on the exhaust hole 20, and an air diffuser is fixedly connected to the output end of the fan 19 to make the air output of the fan 19 more uniform and reduce the impact force of the wind. Water is stored in the cleaning box 18, and the water level is lower than the exhaust holes 20 in the lowest row.

[0031] A clamping device is provided on the bottom plate 1, and the clamping device includes: a base 22, the upper surface of the base 22 is rotatably connected to a support plate 23, the lower surface of the support plate 23 is fixedly connected to an electric telescopic rod 24, the lower surface of the electric telescopic rod 24 is slidably connected to an electric slider 25, and the outer surface of the electric slider 25 is fixedly connected to a clamping plate 26. The base 22 is a telescopic structure with adjustable height. When facing a metal casting with a large mass, the clamping device is used to facilitate the transfer of the metal casting and reduce labor intensity. When the mass is small, it can be directly transported manually.

[0032] The metal casting surface passivation method of this embodiment comprises the following steps:

[0033] S1, placing the metal casting into the cleaning box 18, starting the fan 19, and blowing air to the surface of the metal casting to remove dust on the metal surface;

[0034] S2, using a clamping device to place the treated metal casting into the immersion tank 2 for passivation;

[0035] S3. After soaking for a period of time, start the driving motor 11, the driving motor 11 drives the transmission shaft 12, the transmission shaft 12 drives the turntable 13, and then drives the connecting plate 15. Under the rotation of the turntable 13, the load-bearing plate 5 makes reciprocating motion, and the limit block 7 on the load-bearing plate 5 limits the metal casting. With the reciprocating motion of the load-bearing plate 5, the paddle plate 8 turns the metal casting over.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A metal casting surface passivation device and method, characterized in that: include: A bottom plate (1), the upper surface of the bottom plate (1) is fixedly connected to a soaking box (2), a metal passivation liquid is placed inside the soaking box (2), a leak-proof box (3) is arranged on the soaking box (2), a through hole (4) is arranged on the soaking box (2), a load-bearing plate (5) is slidably connected inside the through hole (4), a leak hole (6) is arranged on the load-bearing plate (5), a limit block (7) is fixedly connected to the upper surface of the load-bearing plate (5), the longitudinal cross section of the limit block (7) is triangular, and an auxiliary support device is arranged on the lower surface of the load-bearing plate (5); The inner surface of the immersion box (2) is slidably connected to a paddle plate (8), the paddle plate (8) is movably connected to the metal casting, a reciprocating mechanism is provided on the bottom plate (1), a push rod (9) is fixedly connected to the outer surface of the load-bearing plate (5), the output end of the reciprocating mechanism is connected to the push rod (9), a cleaning device is provided on the reciprocating mechanism, and a clamping device is provided on the bottom plate (1).

2. A metal casting surface passivation device according to claim 1, characterized in that: The reciprocating mechanism comprises a support frame (10), the upper surface of the support frame (10) is rotatably connected to a drive motor (11), and the output end of the drive motor (11) is fixedly connected to a transmission shaft (12).

3. A metal casting surface passivation device according to claim 2, characterized in that: A rotating disk (13) is fixedly connected to the upper surface of the transmission shaft (12), a fixing bolt (14) is fixedly connected to the rotating disk (13), a connecting plate (15) is rotatably connected to the outer surface of the fixing bolt (14), and the connecting plate (15) is rotatably connected to the push rod (9).

4. A metal casting surface passivation device according to claim 1, characterized in that: The auxiliary support device comprises: a support rod (16), the support rod (16) is fixedly connected to the lower surface of the load-bearing plate (5), the lower surface of the support rod (16) is rotatably connected to a pulley (17), and the pulley (17) is in contact with the inner bottom surface of the immersion box (2).

5. A metal casting surface passivation device according to claim 1, characterized in that: The cleaning device comprises: a cleaning box (18), the cleaning box (18) being fixedly connected to the upper surface of the bottom plate (1), the cleaning box (18) being provided with a fan (19) and an exhaust hole (20), and the exhaust hole (20) being provided with a filter screen (21).

6. A metal casting surface passivation device according to claim 1, characterized in that: The clamping device comprises: a base (22), the upper surface of the base (22) is rotatably connected to a support plate (23), the lower surface of the support plate (23) is fixedly connected to an electric telescopic rod (24), the lower surface of the electric telescopic rod (24) is slidably connected to an electric slider (25), and the outer surface of the electric slider (25) is fixedly connected to a clamping plate (26).

7. A method for passivating the surface of a metal casting, characterized in that: The following steps are involved: S1, placing a metal casting into a cleaning box (18), starting a fan (19), and blowing air to the surface of the metal casting to remove dust on the metal surface; S2, using a clamping device to place the treated metal casting into an immersion tank (2) for passivation; S3, after soaking for a period of time, the driving motor (11) is started, the driving motor (11) drives the transmission shaft (12), the transmission shaft (12) drives the rotating disk (13), and then drives the connecting plate (15), under the rotation of the rotating disk (13), the bearing plate (5) performs reciprocating motion, the limiting block (7) on the bearing plate (5) limits the metal casting, and as the bearing plate (5) reciprocates, the paddle plate (8) turns over the metal casting.

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