Design and structure principle of hydraulic hose crimping machine

Time of issue:

2021-11-19

Design and structure principle of hydraulic hose crimping machine The structure of the crimping machine. The main machine and hydraulic system of the hose crimping machine are designed as a centralized assembly box structure, and a hose joint socket that can be connected with the pipeline of the hydraulic station is reserved on the box body. Spare molds, common tools and other spare parts can be stored in the box. The main machine of the hose crimping machine is the hydraulic cylinder 1, the taper sleeve 8 and the piston rod 5 are connected with the back cap 6 as a whole, and the punch block 9 and the center sleeve 10 are connected with the rear positioning plate 11 by the nut. The high pressure of the hydraulic system is The liquid enters the piston cavity from the port, pushes the piston rod outwards, and presses the outer cone surface of the punch block through the inner cone surface of the cone sleeve 8, so that the mold is elastically contracted radially, and the metal joint is compressed to produce a certain amount of radial plasticity. Deformation to achieve the purpose of connecting the metal joint and the hydraulic hose. When the oil is supplied from the reverse oil port, the piston rod retracts, the taper sleeve releases the compression of the counter block, and the block recovers due to the elasticity of the spring, completing a crimping cycle of the joint. The working principle of the liquid compression tube machine When working, first fit the end of the hydraulic hose with the metal pipe joint 4, and insert it into the predetermined position of the inner hole of the punching block. Then turn the operating valve 7 to the left position. At this time, the host A cavity is a high pressure cavity, and the B cavity is a low pressure cavity. The piston moves to the right under the action of the liquid pressure, and the piston rod drives the cone sleeve to move axially to the right to compress the punch block. In this way, the punch block is forced to contract radially, and the metal pipe joint is crimped until the preset compression amount is reached. This process is called the compression process. Then turn the operating valve to the middle position and pause for a certain period of time (about 1 min). At this time, the A and B chambers are respectively closed and in a pressure-holding state, and the liquid discharged by the liquid pump returns to the liquid tank through the operating valve. This process is called the holding pressure process. Next, turn the operating valve to the right. At this time, the A cavity becomes a low pressure cavity, and the B cavity becomes a high pressure cavity. The piston moves to the left under the action of the liquid pressure, and the piston rod drives the cone sleeve to retract in the opposite direction. After the pressure is released, the punch block is opened under the action of the spring until the taper sleeve returns to the original position. At this time, pull out the crimped hydraulic hose from the mold. This process is called the rollback process. After the three processes of compression, pressure holding and retreat, one cycle of joint crimping is completed. When the host is in the state of designing technical parameters, each crimping cycle is completed for about 3 minutes at most. The design of the main body of the crimping machine 1 The structure design of the center sleeve and the cover 1.1 The structure design of the center sleeve The center sleeve is a round sleeve with a shaft shoulder on the shaft shoulder and a threaded hole on the shaft shoulder. On the board. Since the center sleeve and the taper sleeve are universal, it must also meet the requirements of compressed pipe diameters of 6 mm, 8 mm, 10 mm, 16 mm, 19 mm, 25 mm, 32 mm, so the largest diameter is now The center sleeve of the 32 mm tube is the reference design center sleeve, and then the size of the punch block for different pipe diameters is designed.

When working, first fit the end of the hydraulic hose with the metal pipe joint 4, and insert it into the predetermined position of the inner hole of the punching block. Then turn the operating valve 7 to the left position. At this time, the host A cavity is a high pressure cavity, and the B cavity is a low pressure cavity. The piston moves to the right under the action of the liquid pressure, and the piston rod drives the cone sleeve to move axially to the right to compress the punch block. In this way, the punch block is forced to contract radially, and the metal pipe joint is crimped until the preset compression amount is reached. This process is called the compression process.

Then turn the operating valve to the middle position and pause for a certain period of time (about 1 min). At this time, the A and B chambers are respectively closed and in a pressure-holding state, and the liquid discharged by the liquid pump returns to the liquid tank through the operating valve. This process is called the holding pressure process. Next, turn the operating valve to the right. At this time, the A cavity becomes a low pressure cavity, and the B cavity becomes a high pressure cavity. The piston moves to the left under the action of the liquid pressure, and the piston rod drives the cone sleeve to retract in the opposite direction. After the pressure is released, the punch block is opened under the action of the spring until the taper sleeve returns to the original position. At this time, pull out the crimped hydraulic hose from the mold. This process is called the rollback process. After the three processes of compression, pressure holding and retreat, one cycle of joint crimping is completed. When the host is in the state of designing technical parameters, each crimping cycle is completed for about 3 minutes at most.

The design of the main body of the crimping machine 1 The structure design of the center sleeve and the cover 1.1 The structure design of the center sleeve The center sleeve is a round sleeve with a shaft shoulder on the shaft shoulder and a threaded hole on the shaft shoulder. On the board. Since the center sleeve and the taper sleeve are universal, it must also meet the requirements of compressed pipe diameters of 6 mm, 8 mm, 10 mm, 16 mm, 19 mm, 25 mm, 32 mm, so the largest diameter is now The center sleeve of the 32 mm tube is the reference design center sleeve, and then the size of the punch block for different pipe diameters is designed.

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Maintenance during the use of the hose crimping machine

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Maintenance during the use of the hose crimping machine

Analyze the price gap of crimping machine