Hanging tool for overall phosphating treatment of inner and outer surfaces of part

Abstract

The invention discloses a hanging tool for overall phosphating treatment of the inner and outer surfaces of a part. The hanging tool comprises lifting equipment arranged at the lower end of an upper supporting beam, a lifting rod horizontally connected to the lifting equipment, a falling groove rod horizontally connected to the lower portion of the lifting rod through a telescopic rope assembly, and a containing frame used for containing the part to be phosphated. The left end of the material containing frame is connected with the groove falling rod through a short lifting rope, and the right end of the material containing frame is connected with the lifting rod through a long lifting rope. The lifting device controls the lifting rod to move vertically, and the telescopic rope assembly controls the vertical distance between the lifting rod and the groove falling rod. According to the phosphating hanging tool, the quality requirements for oil removal, rust removal, activation, phosphating and the like of the inner surface of a part with deep blind hole structures at the two ends can be effectively improved, the angle of the material containing frame can be freely adjusted according to the requirements without limitation, and meanwhile the labor intensity of workers is relieved.

Description

Technical Field

[0001] The invention relates to a hanger used for integral phosphating treatment of inner and outer surfaces of parts, belonging to the technical field of phosphating treatment. Background Art

[0002] A part is a cylindrical part with openings at both ends and a partition in the middle. After processing, the cylindrical part needs to be phosphated as a whole. When immersed in the phosphating solution, the inner surfaces of both ends must be filled with the phosphating solution. After the phosphating solution is lifted out, the phosphating solution in the blind holes at both ends must be poured out to ensure the integrity of the phosphating film in the inner cavity. Figure 1 As shown, the two ends of the parts are tied with wire and hung on iron hooks, and the parts are fixed horizontally. During the production process, the solution cannot fill the blind holes at both ends and the gas generated by phosphating gathers in the inner cavity and cannot be completely discharged, so the phosphating quality cannot be guaranteed. Summary of the invention

[0003] The purpose of the invention is to solve the problem of poor phosphating quality of the hanger used in the traditional phosphating process and to provide a hanger for the integral phosphating treatment of the inner and outer surfaces of parts.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] The invention discloses a hanger for integral phosphating of the inner and outer surfaces of a part, comprising a lifting device arranged at the lower end of an upper support beam, a lifting rod horizontally connected to the lifting device, a trough rod horizontally connected below the lifting rod through a telescopic rope assembly, and a material holding frame for holding the parts to be phosphated;

[0006] The left end of the material holding frame is connected to the trough drop rod through a short hanging rope, and the right end of the material holding frame is connected to the lifting rod through a long hanging rope;

[0007] The lifting device controls the vertical movement of the lifting rod, and the telescopic rope assembly controls the vertical distance between the lifting rod and the trough rod.

[0008] Lifting plates for connecting with the lifting equipment are arranged at both ends of the lifting rod.

[0009] Working process

[0010] The parts to be phosphated are placed in the material holding frame, and the vertical distance between the lifting rod and the trough rod is controlled to be reduced by the telescopic rope assembly, so that the rear end of the material holding frame is lifted upward; then the lifting rod is controlled to move vertically downward by the lifting device, so that the material holding frame is completely immersed in the treatment liquid of the phosphating tank, until the trough rod is horizontally supported on the upper edge of the phosphating tank, and the air in the cavity at the right end of the part to be phosphated is completely discharged; then the lifting rod is continued to be controlled to move vertically downward by the lifting device, so that the rear end of the material holding frame is flipped downward, and the air in the cavity at the left end of the part to be phosphated is completely discharged, and this state is maintained for phosphating treatment.

[0011] When the parts are out of the tank, the lifting rod is controlled by the lifting device to move vertically upward. After the rear end of the material holding frame is lifted up first, as the lifting device is completely separated from the treatment liquid in the phosphating tank, the treatment liquid at the left end of the part is discharged first; then the telescopic rope assembly is used to control the vertical distance between the lifting rod and the trough rod to increase, so that the rear end of the material holding frame is flipped downward, the treatment liquid at the right end of the part is discharged, and the phosphating treatment is completed.

[0012] Beneficial Effects

[0013] The phosphating treatment hanger of the present invention can effectively improve the quality requirements of degreasing, rust removal, activation, phosphating, etc. on the inner surface of the deep blind hole structural parts at both ends, and can adjust the angle of the material holding frame without limitation according to the needs, while reducing the labor intensity of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the traditional phosphating treatment hanger and the parts to be treated;

[0015] Figure 2 It is a structural schematic diagram of the phosphating treatment rack of the present invention;

[0016] Figure 3 This is a schematic diagram of the state in which the right end of the phosphating treatment hanger of the present invention is lifted during the treatment process;

[0017] Figure 4 This is a schematic diagram of the left end of the phosphating hanger being lifted during the treatment process of the present invention;

[0018] Figure 5 This is a schematic diagram of the state in which the right end of the phosphating hanger of the present invention is lifted during the process of being taken out of the tank;

[0019] Figure 6 This is a schematic diagram of the state in which the left end of the phosphating hanger of the present invention is lifted during the process of being taken out of the tank;

[0020] In the figure, 1-short lifting rope, 2-long lifting rope, 3-dropping trough rod, 4-lifting rod, 5-lifting plate, 6-telescopic rope assembly, 7-material holding frame, 8-phosphating tank, 9-lifting equipment, 10-upper supporting beam. DETAILED DESCRIPTION

[0021] The content of the present invention is further described below in conjunction with the drawings and embodiments.

[0022] Example

[0023] like Figure 2 As shown, a hanger for integral phosphating of the inner and outer surfaces of parts of the present invention comprises a lifting device 9 arranged at the lower end of an upper support beam 10, a lifting rod 4 horizontally connected to the lifting device 9, a trough rod 3 horizontally connected to the lower part of the lifting rod 4 through a telescopic rope assembly 6, and a material holding frame 7 for holding the parts to be phosphated;

[0024] The left end of the material holding frame 7 is connected to the trough rod 3 through a short hanging rope 1, and the right end of the material holding frame 7 is connected to the lifting rod 4 through a long hanging rope 2;

[0025] The lifting device 9 controls the vertical movement of the lifting rod 4 , and the telescopic rope assembly 6 controls the vertical distance between the lifting rod 4 and the trough rod 3 .

[0026] Lifting plates 5 for connecting to the lifting device 9 are provided at both ends of the lifting rod 4 .

[0027] Working process

[0028] The parts to be phosphated are placed in the material holding frame 7, and the vertical distance between the lifting rod 4 and the trough rod 3 is controlled to be reduced by the telescopic rope assembly 6, so that the rear end of the material holding frame 7 is lifted upward; then the lifting rod 4 is controlled to move vertically downward by the lifting device 9, so that the material holding frame 7 is completely immersed in the treatment liquid of the phosphating tank 8, until the trough rod 3 is horizontally supported on the upper edge of the phosphating tank 8, and the air in the cavity at the right end of the part to be phosphated is completely discharged, as shown in FIG. Figure 3 Then continue to control the lifting rod 4 to move vertically downward through the lifting device 9, so that the rear end of the material holding frame 7 is turned downward, and the air in the cavity at the left end of the part to be phosphated is completely discharged, as shown. Figure 4 As shown, the phosphating treatment is carried out while maintaining this state.

[0029] When the parts are out of the tank, the lifting rod 4 is controlled by the lifting device 9 to move vertically upward, and the rear end of the material frame 7 is first turned upward. As the lifting device 9 completely separates from the treatment liquid in the phosphating tank 8, the treatment liquid at the left end of the parts is discharged first. Figure 5Then, the vertical distance between the lifting rod 4 and the trough rod 3 is increased by controlling the telescopic rope assembly 6, so that the rear end of the material holding frame 7 is flipped downward, so that the treatment liquid at the right end of the part is discharged, and the phosphating treatment is completed.

Claims

1. A hanger for overall phosphating of the inner and outer surfaces of parts, characterized in that: It includes a lifting device arranged at the lower end of the upper support beam, a lifting rod horizontally connected to the lifting device, a trough rod horizontally connected below the lifting rod through a telescopic rope assembly, and a material holding frame for holding parts to be phosphated; The left end of the material holding frame is connected to the trough drop rod through a short hanging rope, and the right end of the material holding frame is connected to the lifting rod through a long hanging rope; The lifting device controls the vertical movement of the lifting rod, and the telescopic rope assembly controls the vertical distance between the lifting rod and the trough rod.

2. A hanger for overall phosphating of the inner and outer surfaces of parts as claimed in claim 1, characterized in that: Lifting plates for connecting with the lifting equipment are arranged at both ends of the lifting rod.

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