Technical field and description of hydraulic hose crimping machine
Time of issue:
2020-11-11
Crimping device of hydraulic hose crimping machine. At present, the hose crimping machine produced by domestic manufacturers still adopts the drawings designed in the 1950s, and is made by the principle of four-column horizontal one-way extrusion. The imported pipe locking machine has exquisite materials and flexible operation, but the structure is similar to the domestic one. This type of hose crimping machine is mainly composed of a fuselage under the workbench, a hydraulic cylinder on the workbench and a horizontal four-post bracket. The fuselage mainly includes fuel tanks, valves and connecting pipes. The front and rear ends of the horizontal four-post bracket are fixed There are two sliding plates sleeved on the four pillars in the middle, which can slide in the direction of the pillars. There are connecting screws between the two sliding plates. A hydraulic cylinder is connected to the fixed plate at the rear end of the four-pillar bracket. It is equipped with a piston and a piston rod. The piston divides the hydraulic cylinder into two oil chambers. The cylinder walls of the two oil chambers are respectively provided with inlet and outlet oil passages. The inlet and outlet oil passages are connected to the oil tank in the fuselage through connecting pipes. The front end of the rod is connected to the sliding plate at the front end of the rear fixed plate. The sliding plate at the front end of the sliding plate has a hollow structure. The front end of the sliding plate of the hollow structure is connected with a shrink sleeve. The fixed plate at the front end of the four-post bracket is a hollow structure. The fixed plate at the front end of the four-post bracket is evenly distributed with radial T-shaped guide rails. The T-shaped guide rail is equipped with a sliding block with an outer slope and an inner slope of the shrink sleeve. The sliding block can slide on the T-shaped guide rail to lock the pipeline to be locked. . When this kind of pipe locking machine is in use, the threaded lock leather is sleeved on the end surface of the pipe to be locked, and this end surface is extended from the hollow of the fixed plate at the front end of the four-post bracket. The piston moves forward by the push of oil pressure. The rod drives the sliding plate to slide forward, which in turn drives the sliding plate of the hollow structure to slide in the same direction. The shrink sleeve on the sliding plate of the hollow structure pushes the squeeze slider to radially slide the pipe to be locked on the T-shaped guide rail. Lock, and then take out this pipe fitting. Similarly, put the lock holster with nut on the end of another pipe, lock the other pipe, and then screw the two pipes together, so that during use A loose head accident may occur in Therefore, this pipe locking machine can only perform one-way end-face locking, which is very inconvenient for pipe docking. In addition, because the length of the horizontal four-post bracket of the pipe locking machine is fixed, it cannot lock some large end-face parts with long ends. Close, and the body is heavy and inconvenient to move. In order to solve the shortcomings that the existing pipe locking machine can only lock one-way end face and cannot lock large end-face parts, a hydraulic pipe locking machine is provided, which changes the original one-way lock only to Pass lock. The technical solution adopted to solve its technical problems is: it includes a fuselage composed of an oil tank, an electric motor oil pump unit, a program-controlled valve block and connecting pipes, and a locking assembly fixedly assembled on the fuselage. The locking assembly is a cylinder liner. As the main body, a hollow piston is provided in the cylinder liner. A sealing sleeve matching the front end of the piston is provided on the inner wall of the front end of the cylinder liner. An annular sealing return oil chamber is formed between the sealing sleeve and the inner wall of the piston and the cylinder liner. The cylinder liner wall is provided with a return oil passage communicating with the return oil cavity, the inner cavity of the piston is a bell mouth shape, the piston and the hollow structure piston rod are of unequal diameter structure, and the back end of the cylinder liner is equipped with a back end cover , The piston rod is in close contact with the inner surface of the rear end cover, the rear end cover and the inner walls of the piston, piston rod and cylinder liner form an annular sealed process oil chamber, and a process oil passage communicating with the process oil chamber is provided on the back end cover , The return oil passage and the process oil passage communicate with the oil tank in the fuselage through the connecting pipe. The front end of the cylinder liner is equipped with a hollow locking bracket. The locking bracket is evenly distributed with radial guide rails. A sliding block in which the outer slope of the guide rail sliding radially matches the i
Crimping device of hydraulic hose crimping machine. At present, the hose crimping machine produced by domestic manufacturers still adopts the drawings designed in the 1950s, and is made by the principle of four-column horizontal one-way extrusion. The imported pipe locking machine has exquisite materials and flexible operation, but the structure is similar to the domestic one. This type of hose crimping machine is mainly composed of a fuselage under the workbench, a hydraulic cylinder on the workbench and a horizontal four-post bracket. The fuselage mainly includes fuel tanks, valves and connecting pipes. The front and rear ends of the horizontal four-post bracket are fixed There are two sliding plates sleeved on the four pillars in the middle, which can slide in the direction of the pillars. There are connecting screws between the two sliding plates. A hydraulic cylinder is connected to the fixed plate at the rear end of the four-pillar bracket. It is equipped with a piston and a piston rod. The piston divides the hydraulic cylinder into two oil chambers. The cylinder walls of the two oil chambers are respectively provided with inlet and outlet oil passages. The inlet and outlet oil passages are connected to the oil tank in the fuselage through connecting pipes. The front end of the rod is connected to the sliding plate at the front end of the rear fixed plate. The sliding plate at the front end of the sliding plate has a hollow structure. The front end of the sliding plate of the hollow structure is connected with a shrink sleeve. The fixed plate at the front end of the four-post bracket is a hollow structure. The fixed plate at the front end of the four-post bracket is evenly distributed with radial T-shaped guide rails. The T-shaped guide rail is equipped with a sliding block with an outer slope and an inner slope of the shrink sleeve. The sliding block can slide on the T-shaped guide rail to lock the pipeline to be locked. . When this kind of pipe locking machine is in use, the threaded lock leather is sleeved on the end surface of the pipe to be locked, and this end surface is extended from the hollow of the fixed plate at the front end of the four-post bracket. The piston moves forward by the push of oil pressure. The rod drives the sliding plate to slide forward, which in turn drives the sliding plate of the hollow structure to slide in the same direction. The shrink sleeve on the sliding plate of the hollow structure pushes the squeeze slider to radially slide the pipe to be locked on the T-shaped guide rail. Lock, and then take out this pipe fitting. Similarly, put the lock holster with nut on the end of another pipe, lock the other pipe, and then screw the two pipes together, so that during use A loose head accident may occur in Therefore, this pipe locking machine can only perform one-way end-face locking, which is very inconvenient for pipe docking. In addition, because the length of the horizontal four-post bracket of the pipe locking machine is fixed, it cannot lock some large end-face parts with long ends. Close, and the body is heavy and inconvenient to move.
In order to solve the shortcomings that the existing pipe locking machine can only lock one-way end face and cannot lock large end-face parts, a hydraulic pipe locking machine is provided, which changes the original one-way lock only to Pass lock.
The technical solution adopted to solve its technical problems is: it includes a fuselage composed of an oil tank, an electric motor oil pump unit, a program-controlled valve block and connecting pipes, and a locking assembly fixedly assembled on the fuselage. The locking assembly is a cylinder liner. As the main body, a hollow piston is provided in the cylinder liner. A sealing sleeve matching the front end of the piston is provided on the inner wall of the front end of the cylinder liner. An annular sealing return oil chamber is formed between the sealing sleeve and the inner wall of the piston and the cylinder liner. The cylinder liner wall is provided with a return oil passage communicating with the return oil cavity, the inner cavity of the piston is a bell mouth shape, the piston and the hollow structure piston rod are of unequal diameter structure, and the back end of the cylinder liner is equipped with a back end cover , The piston rod is in close contact with the inner surface of the rear end cover, the rear end cover and the inner walls of the piston, piston rod and cylinder liner form an annular sealed process oil chamber, and a process oil passage communicating with the process oil chamber is provided on the back end cover , The return oil passage and the process oil passage communicate with the oil tank in the fuselage through the connecting pipe. The front end of the cylinder liner is equipped with a hollow locking bracket. The locking bracket is evenly distributed with radial guide rails. A sliding block in which the outer slope of the guide rail sliding radially matches the inner slope of the piston front end.
A replaceable tooth plate is connected to the inner surface of the slider; where the piston rod and the rear end cover are in contact, where the outer wall of the piston is in contact with the inner wall of the cylinder liner, where the sealing sleeve and the inner wall of the cylinder liner are in contact, the sealing sleeve is in contact with the outer wall of the piston front end Seals are provided everywhere.
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