Die casting surface passivation device

Abstract

The utility model provides a die casting surface passivation device which comprises a middle shaft and a plurality of chemical pools arranged in the circumferential direction of the middle shaft, a motor and a station disc are arranged at the upper end of the middle shaft, a plurality of stations are evenly arranged on the station disc in the circumferential direction, and the station disc is connected with the middle shaft through a bearing. Meshed gears are respectively arranged on the station disc and a rotating shaft of the motor, and the motor drives the station disc to rotate through the gears, so that station switching is realized; according to the utility model, a plurality of treatment medicine pools which are linearly arranged originally are rearranged into an annular structure. The multi-station station disc can bear a plurality of die castings, circular treatment is carried out on the annular assembly line, through the layout of the annular structure, the overall structure of the device becomes more compact, the factory area is remarkably saved, the space utilization rate is increased, and higher flexibility is shown in actual operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting passivation technical field especially relates to a die casting surface passivation device. BACKGROUND

[0002] Die casting surface passivation is an advanced surface treatment technology, aiming to build a layer of compact and corrosion-resistant oxide film or chemical reaction film on the surface of die casting through a specific process. The core purpose of this technology is to significantly improve the corrosion resistance of die casting. Under the interaction of die casting and the surrounding medium, corrosion products will be generated on its surface, forming a layer of closely adhered film. This film not only changes the surface state of die casting, but also promotes the positive transition of the electrode potential of die casting, so as to make it enter the corrosion-resistant passive state.

[0003] The traditional die casting surface passivation process is usually completed in sequence on a long assembly line. The whole process includes oil removal, water washing, white agent cleaning, re-washing, passivation treatment, drying and sealing, etc. However, this traditional passivation assembly line has some problems: on the one hand, the overall distance of the assembly line is long, occupying a large amount of space; on the other hand, when changing the treatment solution or carrying out equipment maintenance, the operation is relatively complicated and time-consuming. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings in the above background technology, the purpose of the utility model is to provide a die casting surface passivation device with smaller assembly line area and convenient solution replacement.

[0005] The technical scheme is: a die casting surface passivation device, comprising a central shaft and a plurality of chemical pools arranged circumferentially along the central shaft, the upper end of the central shaft is provided with a motor and a work station disc, a plurality of work stations are arranged circumferentially on the work station disc, the work station disc and the central shaft are connected through bearings, meshing gears are arranged on the work station disc and the motor shaft respectively, the motor drives the work station disc to rotate through the gears to realize the switching of the work stations; a telescopic mechanism is arranged on each work station, the telescopic end of the telescopic mechanism faces the direction of the chemical pool and is provided with a die casting carrying component; the plurality of chemical pools include at least one cleaning pool, one passivation pool and one baking pool.

[0006] As a further preferred scheme, the carrying component is a hollow box or a hook.

[0007] As a further preferred scheme, a cleaning assembly is arranged in the cleaning pool, which includes a linear slide rail arranged on the inner wall of the cleaning pool, a reciprocating slide table arranged on the linear slide rail and a hanging rod arranged on the reciprocating slide table, a plurality of cleaning nozzles are arranged on the hanging rod along the length direction of the hanging rod, and the other end of the cleaning nozzle is connected with a high-pressure water tank.

[0008] As a further preferred scheme, a long suspension groove is formed along the length direction of the suspension rod, a sliding block is arranged in the long suspension groove, and the cleaning nozzle is arranged on the sliding block.

[0009] As a further preferred scheme, the front side of the baking pool is open, the sidewall of the baking pool is provided with a heating wire, and the bottom is provided with a hollow plate.

[0010] As a further preferred scheme, the bottom wall of the baking pool is inclined in a high-in and low-out mode.

[0011] As a further preferred scheme, the telescopic mechanism is arranged on the work station through a clamping part, the work station is a rectangular gap, opposite sides of the work station are respectively provided with mounting holes I, the clamping part is H-shaped, and the clamping part is provided with clamping holes for mounting the telescopic mechanism and mounting holes II corresponding to the mounting holes I.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. A plurality of treatment tanks originally arranged in a linear manner are rearranged into a ring structure. The multi-station work station can carry a plurality of die castings and perform cyclic treatment on the ring-shaped assembly line. Through the arrangement of the ring structure, the overall structure of the device becomes more compact, which not only significantly saves the factory area and improves the space utilization rate, but also exhibits higher flexibility in actual operation. In addition, when the treatment solution needs to be replaced or the equipment needs to be maintained, the operation becomes more convenient and fast due to the compact structure and reasonable arrangement, thereby greatly reducing the maintenance time and cost.

[0014] 2. The carrying part of the utility model is a hollow box or a hook, which can carry several small parts through the hollow box or carry a large single part through the hook.

[0015] 3. The cleaning assembly of the utility model drives the cleaning nozzle to reciprocate through the linear slide rail and the reciprocating slide table, and cooperates with high-pressure water washing to wash the surface of the die casting. In addition, the position of the cleaning nozzle on the suspension rod can be adjusted, and the adaptability can be adjusted according to the size of different die castings.

[0016] 4. The utility model provides baking conditions by arranging a heating wire on the sidewall of the baking pool, can quickly dry the moisture on the surface of the passivated die casting, and the bottom of the baking pool is inclined, facilitating the flow of liquid out of the baking pool. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2This is a schematic diagram of the structure of the motor, gear, workstation plate, and clamping part of this utility model.

[0019] Figure 3 This is a structural schematic diagram of the hollow box and hook of this utility model.

[0020] Figure 4 This is a schematic diagram of the cleaning component of this utility model.

[0021] Labels in the diagram: 1-Central shaft, 2-Medicine pool, 2a-Cleaning pool, 2b-Passivation pool, 2c-Baking pool, 3-Motor, 4-Workstation plate, 41-Workstation, 42-Bearing, 51, 52-Gears, 6-Telescopic mechanism, 7-Carrying component, 7a-Hollow box, 7b-Hook, 8-Cleaning assembly, 81-Linear slide rail, 82-Reciprocating slide table, 83-Suspension rod, 83a-Suspension groove, 83b-Screw hole, 84-Cleaning nozzle, 85-Pre-tightening screw, 9-Heating wire, 91-Hollow plate, 10-Clamping part, 11-Mounting hole I, 12-Mounting hole II. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 , 2 The die-casting surface passivation device shown includes a central shaft 1 and a chemical pool 2. Multiple chemical pools 2 are provided and arranged circumferentially around the central shaft 1. The central shaft 1 is a hollow metal straight tube. A bearing 42 is installed at the upper end of the central shaft 1. A work station disk 4 is fitted around the outer ring of the bearing 42. The work station disk 4 is a metal disc. Multiple work stations 41 are arranged circumferentially around the edge of the work station disk 4. Each work station 41 is used to carry the die-casting part. A motor 3 is also provided at the upper end of the central shaft 1. A gear 51 is provided on the rotating shaft of the motor 3. A gear 52 is coaxially provided on the work station disk 4. The gears 51 and 52 mesh. The motor 3 drives the work station disk 4 to rotate through the gears 51 and 52 to realize the switching of work stations 41.

[0024] Each workstation 41 can be equipped with a telescopic mechanism 6, the telescopic end of which faces the medicine pool 2 and is equipped with a die-casting part carrying component 7; the carrying component 7 is used to carry the die-casting part, such as Figure 3 As shown, the carrying component 7 is either a hollow box 7a or a hook 7b. The hollow box 7a is used for small parts, and multiple parts can be carried at once, while the hook 7b is used for large parts, generally to suspend a single die-cast part.

[0025] Referring to Figure 2 The telescopic mechanism 6 is arranged on the work station 41 through the clamping part 10, the work station 41 is a rectangular gap, the number of work stations 41 is generally set to four to sixteen, and opposite sides of the work station 41 are respectively provided with mounting holes I 11. The clamping part 10 is in H shape, and is provided with clamping holes for mounting the telescopic mechanism 6 and mounting holes II 12 corresponding to the mounting holes I 11. Several work stations 41 are used to mount the clamping part 10 on the work station 41, and then the telescopic mechanism 6 is mounted on the clamping part 10. The telescopic mechanism 6 can use an electric push rod or an air cylinder.

[0026] In the embodiment, the medicine pools 2 include four pools, at least one of which is a cleaning pool 2a, one is a passivation pool 2b, and one is a baking pool 2c. In addition, there is one standby pool. The cleaning pool 2a generally adds oil removing agent, the standby pool generally adds a white agent, and the passivation pool 2b adds passivation liquid.

[0027] The cleaning pool 2a has two modes of soaking and flushing. The cleaning pool 2a is provided with a cleaning assembly 8, as shown in Figure 4 The cleaning assembly 8 includes a linear slide rail 81 arranged on the inner wall of the cleaning pool 2a, a reciprocating slide table 82 arranged on the linear slide rail 81, and a hanging rod 83 arranged on the reciprocating slide table 82. A plurality of cleaning nozzles 84 are arranged on the hanging rod 83 along the length direction of the hanging rod 83, and the other end of the cleaning nozzle 84 is connected to a high-pressure water tank. The cleaning pool 2a in the embodiment has four side walls, and one cleaning assembly 8 is arranged on each of two opposite side walls. The driving mechanism composed of the linear slide rail 81 and the reciprocating slide table 82 can be a linear slide table group, a screw slide table, a linear motor, a linear cylinder, or any mechanism that can realize reciprocating linear motion. In addition, a hanging long groove 83a is formed on the hanging rod 83 along the length direction of the hanging rod 83, a sliding block is arranged in the hanging long groove 83a, the cleaning nozzle 84 is arranged on the sliding block, a threaded hole 83b is formed through the hanging long groove 83a in the middle of the hanging rod 83, and a pre-tightening screw 85 is arranged in the threaded hole 83b. By arranging the sliding block, the hanging long groove 83a, and the pre-tightening screw 85, the position of the cleaning nozzle 84 can be adjusted, so that the cleaning of die castings with different structures and sizes can be adapted.

[0028] In the embodiment, the front side of the baking pool 2c is open, which facilitates the loss of water vapor on the die casting. The side wall of the baking pool 2c is provided with heating wires 9, which can heat and bake the die casting. The bottom is provided with a perforated plate 91, and the bottom wall of the baking pool 2c is inclined in a manner that the inner side is higher and the outer side is lower. The liquid on the die casting flows from the perforated plate 91 to the bottom wall of the baking pool 2c, and then flows out along the bottom wall, which facilitates the discharge of the liquid and provides a dry environment.

[0029] In addition, it should be noted that the electrical components of the device, such as the motor, the air cylinder, the reciprocating slide, the cleaning nozzle 84, and the heating wire 9, are connected to the controller (not shown in the figure), for example, to control the start and stop of the motor, the rotation angle and direction, to control the extension and retraction of the air cylinder and the hovering time, to control the power of the heating wire, to control the opening and closing of the valve, and so on. This is prior art and will not be described in detail.

[0030] The above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An apparatus for passivating the surface of a die casting, characterized in that The utility model relates to a kind of automatic production line for the production of pressure-casting, including central axis (1), and multiple medicine pools (2) are arranged circumferentially along the central axis (1), the upper end of the central axis (1) is equipped with a motor (3) and a station disk (4), the station disk (4) is circumferentially equipped with multiple stations (41), station disk (4) is connected with central axis (1) by bearing (42), gear (51,52) is respectively arranged on the rotation axis of station disk (4) and motor (3), and motor (3) drives station disk (4) to rotate by gear (51,52), the switching of station (41) is realized; Station (41) is respectively equipped with telescopic mechanism (6), and the telescopic end of telescopic mechanism (6) is towards medicine pool (2) direction and is equipped with die-casting carrying component (7); Multiple medicine pools (2) include at least one cleaning pool (2a), one passivation pool (2b) and one baking pool (2c).

2. The apparatus for passivating the surface of a die casting according to claim 1, wherein The carrying component (7) is a hollow box (7a) or a hook (7b).

3. The apparatus for passivating the surface of a die casting according to claim 1, wherein Cleaning pool (2a) is equipped with cleaning assembly (8), which includes linear slide rail (81) arranged on the inner wall of cleaning pool (2a), reciprocating slide table (82) arranged on linear slide rail (81) and suspension rod (83) arranged on reciprocating slide table (82), a plurality of cleaning nozzles (84) are arranged on the length direction of suspension rod (83), and the other end of cleaning nozzle (84) is connected with high-pressure water tank.

4. The apparatus for passivating the surface of a die casting according to claim 3, wherein Suspension long groove (83a) is formed in the length direction of suspension rod (83), and sliding block is arranged in suspension long groove (83a), cleaning nozzle (84) is arranged on sliding block, and pre-tightening screw (85) is arranged in screw hole (83b) penetrating through suspension long groove (83a) in the middle part of suspension rod (83).

5. The apparatus for surface passivation of die cast parts according to any one of claims 1 to 3, characterized in that The front side of baking pool (2c) is open, the side wall of baking pool (2c) is provided with heating wire (9), and the bottom is provided with hollow plate (91).

6. The apparatus for surface passivation of die cast parts according to claim 5, wherein The bottom wall of baking pool (2c) is inclined in an inner high and outer low mode.

7. The apparatus for passivating die casting surfaces as set forth in claim 1, wherein Telescopic mechanism (6) is arranged on station (41) through clamping part (10), station (41) is a rectangular gap, and mounting hole I (11) is arranged on the opposite sides of station (41) respectively, clamping part (10) is H-shaped, and clamping hole for mounting telescopic mechanism (6) and mounting hole II (12) corresponding to mounting hole I (11) are arranged on clamping part (10).

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