Positioning vehicle for assembling lower casing assembly

Abstract

The utility model discloses a positioning vehicle for assembling a lower casing assembly, and belongs to the technical field of engine assembling. The upper end of the vehicle body is fixedly connected with the lower ends of two stand columns, a speed reducer is fixedly installed at the upper end of one stand column, the input end of the speed reducer is fixedly installed with a hand wheel, and the upper end of the other stand column is rotationally connected with one end of a horizontally-arranged rotating shaft. The other end of the rotating shaft and the output end of the speed reducer are fixedly connected with the corresponding supports through the corresponding couplings respectively, and the two supports are symmetrically arranged. A hand wheel-speed reducer driving system is matched with the rotating shaft, 360-degree continuous rotation of the support is achieved through the coupler, large casting and forging pieces can be accurately adjusted to any assembling angle, the indexing pin limiting mechanism is matched, the technical bottleneck that a traditional tool is low in angle control precision is solved, and the precision consistency of multi-station assembling is improved.

Description

Technical Field

[0001] This utility model relates to a positioning vehicle for assembling the lower casing assembly, belonging to the field of engine assembly technology. Background Technology

[0002] Traditional assembly processes for the lower casing assembly employ open workbenches for multi-station assembly, requiring manual intervention from operators to adjust the assembly orientation. Because the lower casing itself is a typical large casting or forging, typically weighing over 50 kg, three technical bottlenecks arise during assembly:

[0003] Firstly, the workpiece transfer process involves high labor intensity for operators and poses safety hazards;

[0004] Secondly, multi-degree-of-freedom assembly operations require repeated spatial attitude adjustments, and traditional positioning fixtures cannot achieve free angle control, making it difficult to guarantee the consistency of assembly accuracy.

[0005] Thirdly, repetitive clamping operations can easily cause contact damage to mating surfaces, especially in precision mating parts, which can easily lead to bumps and scratches, directly affecting the product qualification rate. Utility Model Content

[0006] To address the problems existing in the background art, this utility model provides a positioning vehicle for assembling the lower casing assembly.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a positioning vehicle for assembling a lower casing assembly, comprising a vehicle body, columns, handwheels, reducers, couplings, brackets, and a rotating shaft; the upper end of the vehicle body is fixedly connected to the lower ends of two columns, a reducer is fixedly mounted on the upper end of one of the columns, the input end of the reducer is fixedly mounted to the handwheel, the upper end of the other column is rotatably connected to one end of a horizontally arranged rotating shaft, the other end of the rotating shaft and the output end of the reducer are respectively fixedly connected to corresponding brackets through corresponding couplings, and the two brackets are symmetrically arranged.

[0008] An oil receiving tray is placed on the upper part of the vehicle body, and the oil receiving tray is located below two brackets.

[0009] Each bracket is a horizontally arranged U-shaped structure, with the middle of the main board of each bracket fixedly connected to the corresponding coupling, and the ends of the two support plates of each bracket fixed with an installation mechanism.

[0010] Each of the aforementioned mounting mechanisms includes a U-shaped frame and a screw and nut assembly; the main plate of the U-shaped frame is fixedly connected to the support plate of the corresponding bracket, and the screw and nut assembly is inserted into the ends of the two support plates of the U-shaped frame.

[0011] One of the columns is equipped with a limiting mechanism at its upper end, and the limiting mechanism is configured to cooperate with the corresponding coupling.

[0012] The limiting mechanism includes a lever, a hinge fork, a spring, a hinge support, and an indexing pin. The upper end of the column is connected to the hinge fork, hinge support, and indexing pin, which are arranged vertically in sequence. The upper ends of the hinge fork and the hinge support are fixedly connected to the column. The middle part of the indexing pin is slidably connected to the column. The inner end of the lever is hinged to the lower end of the hinge fork and the lower end of the indexing pin. The lower end of the hinge support is connected to the lever by a spring. The upper end of the indexing pin is fitted with a notch on the outer wall of the coupling.

[0013] The connection points between the coupling and the bracket, the rotating shaft, and the reducer are all equipped with sealing structures.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention employs a handwheel-reducer drive system in conjunction with a rotating shaft, achieving 360° continuous rotation of the bracket via a coupling. This allows large castings and forgings to be precisely adjusted to any assembly angle. Combined with an indexing pin limiting mechanism, it overcomes the technical bottleneck of low angle control accuracy in traditional tooling, improving the consistency of precision in multi-station assembly. Secondly, a quick-clamping system composed of a U-shaped bracket and a screw and nut assembly, along with an oil collection tray to collect waste liquid, avoids damage to mating surfaces caused by repeated clamping, reducing the product's impact and defect rate. Furthermore, multiple assembly processes are integrated into a mobile vehicle platform, achieving seamless flow between processes via casters. This reduces manual handling intensity while eliminating safety hazards associated with traditional open workbenches, improving assembly efficiency and offering the dual advantages of ergonomic optimization and enhanced process compatibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 AA section view;

[0018] Figure 3 This is a schematic diagram of the coupling structure;

[0019] Figure 4 This is a schematic diagram of the limit mechanism. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0021] A positioning vehicle for assembling a lower casing assembly includes a vehicle body 1, columns 2, handwheel 21, reducer 24, coupling 29, bracket 30, and rotating shaft 40. The upper end of the vehicle body 1 is fixedly connected to the lower ends of two columns 2. A reducer 24 is fixedly mounted on the upper end of one of the columns 2. The input end of the reducer 24 is fixedly mounted to the handwheel 21. The upper end of the other column 2 is rotatably connected to one end of a horizontally arranged rotating shaft 40 via a bearing 39. The other end of the rotating shaft 40 and the output end of the reducer 24 are fixedly connected to the corresponding bracket 30 via corresponding couplings 29. The two brackets 30 are symmetrically arranged.

[0022] An oil receiving tray 9 is placed on the upper end of the vehicle body 1. The oil receiving tray 9 is located below the two brackets 30 and is used to receive any dripping oil.

[0023] Each bracket 30 is a horizontally arranged U-shaped structure. The middle part of the main board of each bracket 30 is fixedly connected to the corresponding coupling 29 by bolts. The ends of the two support plates of each bracket 30 are fixed with an installation mechanism for installation and fixation with the product.

[0024] Each of the aforementioned installation mechanisms includes a U-shaped frame 33 and a screw and nut assembly 34; the main plate of the U-shaped frame 33 is fixedly connected to the support plate of the corresponding bracket 30 by bolts, and the screw and nut assembly 34 is inserted into the ends of the two support plates of the U-shaped frame 33 to realize the quick installation and disassembly of parts.

[0025] One of the columns 2 is equipped with a limiting mechanism at its upper end. The limiting mechanism is configured to cooperate with the corresponding coupling 29 to fix the rotation angle of the part.

[0026] The limiting mechanism includes a lever 11, a hinge fork 15, a spring 18, a hinge support 19, and an indexing pin 20. The upper end of the column 2 is connected to the hinge fork 15, the hinge support 19, and the indexing pin 20, which are arranged vertically in sequence. The upper ends of the hinge fork 15 and the hinge support 19 are fixedly connected to the column 2. The middle part of the indexing pin 20 is slidably connected to the column 2. The inner end of the lever 11 is hinged to the lower end of the hinge fork 15 and the lower end of the indexing pin 20 via a hinge shaft 12. The lower end of the hinge support 19 is connected to the lever 11 via a spring 18. The upper end of the indexing pin 20 is fitted into a notch on the outer wall of the coupling 29. By operating the lever 11, the indexing pin 20 is engaged in the corresponding notch of the coupling 29, thereby fixing the angle of the part.

[0027] The connection points between the coupling 29 and the bracket 30, the rotating shaft 40 and the reducer 24 are all equipped with sealing structures such as sealing rings to prevent oil leakage and dust intrusion; at the same time, the sealing structure is also equipped with an easily removable sealing cover for convenient periodic inspection and replacement of the seals.

[0028] When using this invention, the screw and nut assembly 34 is tightened after passing through the hole in the part to achieve a fixed connection between the part and the U-shaped frame 33, thereby fixing the part to the bracket 30. Then, the angle of the part can be adjusted by rotating the handwheel 21, facilitating installation at any angle or other operations. In addition, the indexing pin 20 can be engaged into the notch of the coupling 29 by operating the lever 11 to fix the part at a certain angle.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning vehicle for assembling a lower casing assembly, characterized in that: The system includes a vehicle body (1), columns (2), handwheel (21), reducer (24), coupling (29), bracket (30), and rotating shaft (40). The upper end of the vehicle body (1) is fixedly connected to the lower ends of two columns (2). A reducer (24) is installed and fixedly mounted on the upper end of one of the columns (2). The input end of the reducer (24) is fixedly mounted to the handwheel (21). The upper end of the other column (2) is rotatably connected to one end of a horizontally arranged rotating shaft (40). The other end of the rotating shaft (40) and the output end of the reducer (24) are fixedly connected to the corresponding bracket (30) through the corresponding coupling (29). The two brackets (30) are symmetrically arranged.

2. The positioning vehicle for assembling the lower casing assembly according to claim 1, characterized in that: An oil receiving tray (9) is placed on the upper end of the vehicle body (1), and the oil receiving tray (9) is located below the two brackets (30).

3. A positioning vehicle for assembling a lower casing assembly according to claim 1, characterized in that: Each bracket (30) is a horizontally arranged U-shaped structure. The middle part of the main board of each bracket (30) is fixedly connected to the corresponding coupling (29). The ends of the two support plates of each bracket (30) are fixed with an installation mechanism.

4. A positioning vehicle for assembling a lower casing assembly according to claim 3, characterized in that: Each of the aforementioned mounting mechanisms includes a U-shaped frame (33) and a screw and nut assembly (34); the main plate of the U-shaped frame (33) is fixedly connected to the support plate of the corresponding bracket (30), and the screw and nut assembly (34) is inserted into the ends of the two support plates of the U-shaped frame (33).

5. A positioning vehicle for assembling a lower casing assembly according to claim 1 or 4, characterized in that: One of the columns (2) is equipped with a limiting mechanism at its upper end, and the limiting mechanism is configured to cooperate with the corresponding coupling (29).

6. A positioning vehicle for assembling a lower casing assembly according to claim 5, characterized in that: The limiting mechanism includes a lever (11), a hinge fork seat (15), a spring (18), a hinge support (19), and an indexing pin (20); the upper end of the column (2) is connected to the hinge fork seat (15), the hinge support (19), and the indexing pin (20) arranged vertically in sequence; the upper ends of the hinge fork seat (15) and the upper ends of the hinge support (19) are fixedly connected to the column (2); the middle part of the indexing pin (20) is slidably connected to the column (2); the inner end of the lever (11) is hinged to the lower end of the hinge fork seat (15) and the lower end of the indexing pin (20); the lower end of the hinge support (19) is connected to the lever (11) through the spring (18); the upper end of the indexing pin (20) is fitted with a notch on the outer wall of the coupling (29).

7. A positioning vehicle for assembling a lower casing assembly according to claim 5, characterized in that: The connection points between the coupling (29) and the bracket (30), the rotating shaft (40) and the reducer (24) are all equipped with sealing structures.

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