Connecting rod assembling device

Abstract

The utility model relates to the technical field of compressor connecting rods, in particular to a connecting rod assembling device which can reduce the labor intensity of assembling and improve the efficiency and comprises a base, a connecting rod body fixing mechanism is arranged on one side of the base, and a connecting rod cover moving mechanism is arranged on the other side of the base. The connecting rod body fixing mechanism comprises two symmetrically-arranged first synchronous air cylinders, first pressing plates are arranged on piston rods of the first synchronous air cylinders, and the connecting rod cover moving mechanism comprises a guide rail fixed to the base and a moving plate installed on the guide rail in a sliding mode. Two second synchronous air cylinders which are symmetrically arranged are installed on the movable plate, a second pressing plate is arranged on piston rods of the second synchronous air cylinders, a third pressing plate is arranged on one side of the second pressing plate, a circular ring is arranged on the third pressing plate, three nut pressing rods are arranged on the circular ring, and a positioning column is further arranged in the middle of the movable plate.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor connecting rods, and specifically relates to a connecting rod assembly device. Background Art

[0002] The connecting rod is an important component in a reciprocating compressor. The small head holes and large head holes at both ends thereof are respectively connected to a crosshead pin and a crankshaft. At one end of the crankshaft, a circular ring structure is formed by a connecting rod body and a connecting rod cap. As Figure 1 shown, the existing operations are all completed manually. One person lays the connecting rod body flat and presses it, and another person moves the connecting rod cap close to the connecting rod body. After docking, a third person inserts a bolt and screws on a nut to complete the assembly. The whole operation is time-consuming and laborious. During docking, continuous adjustment is often required, resulting in low installation efficiency and high labor intensity. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides a connecting rod assembly device, which can reduce the labor intensity of assembly and improve the efficiency.

[0004] Its technical solution is as follows: A connecting rod assembly device, characterized in that it includes a base. On one side of the base, a connecting rod body fixing mechanism is arranged, and on the other side, a connecting rod cap moving mechanism is arranged. The connecting rod body fixing mechanism includes two symmetrically arranged first synchronous cylinders. A first pressing plate is arranged on the piston rod of the first synchronous cylinder. The connecting rod cap moving mechanism includes a guide rail fixed on the base and a moving plate slidably installed on the guide rail. Two symmetrically arranged second synchronous cylinders are installed on the moving plate. A second pressing plate is arranged on the piston rod of the second synchronous cylinder. A third pressing plate is arranged on one side of the second pressing plate. A circular ring is arranged on the third pressing plate. Three nut pressing rods are arranged on the circular ring. A positioning column is also arranged in the middle of the moving plate.

[0005] Further, one side of the moving plate is connected to a driving cylinder;

[0006] The positioning column includes three arranged in an isosceles triangle;

[0007] The second pressing plate is an L-shaped plate, and the third pressing plate is fixed to the transverse part of the L-shaped plate by bolts.

[0008] After adopting the utility model, the connecting rod body and the connecting rod cap are respectively fixed and placed on the connecting rod body fixing mechanism and the connecting rod cap moving mechanism. After positioning and fixing, the nut is placed in the mounting hole of the connecting rod cap and pressed by the circular ring. After the connecting rod cap is moved to be close to the connecting rod body, the bolt is inserted and tightened to complete the assembly operation, which greatly reduces the labor intensity and only requires one person to complete, simplifies the operation, and improves the efficiency. Brief Description of the Drawings

[0009] Figure 1 This is a schematic diagram of the assembly of the connecting rod body and the connecting rod cover;

[0010] Figure 2 It is a schematic diagram of the utility model;

[0011] Figure 3 Schematic diagram of the third pressure plate. DETAILED DESCRIPTION

[0012] See Figure 2 and Figure 3 As shown, a connecting rod assembly device includes a base 1, a connecting rod body fixing mechanism 2 is provided on one side of the base 1, and a connecting rod cover moving mechanism 3 is provided on the other side, the connecting rod body fixing mechanism 2 includes two symmetrically arranged first synchronous cylinders 4, a first pressure plate 5 is provided on the piston rod of the first synchronous cylinder 4, the connecting rod cover moving mechanism 3 includes a guide rail 6 fixed on the base 1 and a moving plate 7 slidably mounted on the guide rail 6, two symmetrically arranged second synchronous cylinders 8 are installed on the moving plate 7, a second pressure plate 9 is provided on the piston rod of the second synchronous cylinder 8, a third pressure plate 10 is provided on one side of the second pressure plate 9, a circular ring 11 is provided on the third pressure plate 10, three nut pressure rods 12 are provided on the circular ring 11, and three positioning columns 13 arranged in an isosceles triangle are also provided in the middle of the moving plate 7. The second pressure plate 9 is an L-shaped plate, and the third pressure plate 10 is provided with a waist-shaped hole 14. The third pressure plate 10 is fixed to the horizontal portion of the L-shaped plate by bolts 15. The position of the third pressure plate 10 can be adjusted according to actual conditions so that the three nut pressing rods 12 on the ring 11 can extend into the holes of the connecting rod cover 16 to press the nuts. The movable plate 7 is connected to a drive cylinder 17 on one side to drive the movable plate 7 to move.

[0013] The working principle is as follows: first put the connecting rod body 18 in place. In order to align the connecting rod body 18 and the connecting rod cover 1, a step is provided on the base 1. The connecting rod body 18 is placed at the high position of the step, and the second synchronous cylinder 8 is used to achieve centering and pressing and fixing. In order to ensure that the connecting rod body 18 does not move axially, a movement-preventing mechanism, such as axial pressing, can also be provided at the other end of the connecting rod body 18. It is not shown in the accompanying drawings and is a conventional mechanism; then the connecting rod cover 16 is placed on the moving plate, and the three positioning columns 13 achieve initial positioning without axial movement, and then the two second synchronous cylinders 8 achieve centering and pressing. Tighten and fix, drive cylinder 17 to drive moving plate 7, let connecting rod cover 16 and connecting rod body 18 dock, then insert nut into the through hole of connecting rod cover 16, install third pressing plate 10, let positioning column 13 press nut, finally insert bolt and start tightening bolt, the end of bolt can extend from the middle of ring 11, let the bolt head of that bolt rest against connecting rod body 18 and the connection is completed, remove third pressing plate 10, loosen first pressing plate 5 and second pressing plate 9, and then remove the assembled connecting rod. The whole operation can be completed by one person, which reduces labor intensity. The operation can be carried out after one positioning, which improves efficiency.

Claims

1. A connecting rod assembly device, characterized in that, It includes a base, on one side of the base, a connecting rod body fixing mechanism is provided, and on the other side, a connecting rod cover moving mechanism is provided. The connecting rod body fixing mechanism includes two symmetrically arranged first synchronous cylinders, and a first pressing plate is arranged on the piston rod of the first synchronous cylinder. The connecting rod cover moving mechanism includes a guide rail fixed on the base and a moving plate slidably mounted on the guide rail. Two symmetrically arranged second synchronous cylinders are mounted on the moving plate, and a second pressing plate is arranged on the piston rod of the second synchronous cylinder. A third pressing plate is arranged on one side of the second pressing plate, a circular ring is arranged on the third pressing plate, three nut pressing rods are arranged on the circular ring, and a positioning post is also arranged in the middle of the moving plate.

2. The connecting rod assembling device according to claim 1, characterized in that, One side of the moving plate is connected to a driving cylinder.

3. The connecting rod assembling device according to claim 1, characterized in that, The positioning posts include three arranged in an isosceles triangle.

4. A connecting rod assembly device according to claim 1, characterized in that, The second pressing plate is an L-shaped plate, and the third pressing plate is fixed to the horizontal part of the L-shaped plate by bolts.

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