CN110538955A - Temperature Control Accuracy Improvement Device for Hot Die Forging Press - Google Patents

Abstract

The temperature control accuracy improvement device for hot die forging presses includes: a worktable temperature control device, the worktable temperature control device includes a first temperature control channel arranged on the contact surface between the bottom of the worktable and the fuselage, the The first temperature control channel is provided with an air inlet and an air outlet, and the air inlet of the first temperature control channel is connected to the air-conditioning system through a pipeline, and a temperature sensor is installed in the temperature measuring hole on the worktable; the slider temperature control device , the slider temperature control device includes a second temperature control channel arranged inside the slider and on the contact surface of the slider guide plate before and after the slider, and the second temperature control channel is provided with an air inlet hole and an air outlet hole. The temperature of the slider and the worktable is controlled at a stable level, without deformation due to heating and temperature rise; at the same time, the heat conduction of high-temperature forged parts is blocked, and the accuracy of other moving parts is prevented from changing due to heat conduction, so as to improve the temperature of hot die forging The overall precision of the press, production efficiency and quality of processed products.

Description

Temperature Control Accuracy Improvement Device for Hot Die Forging Press

Technical field:

The invention relates to a device for improving temperature control accuracy of a hot die forging press.

Background technique:

With the rapid development of major engineering projects in my country's key industries such as automobiles, high-speed rail, military industry, machinery, and home appliances, the current forging industry market is increasing with the improvement of forging materials and mold quality, and the demand and output of precision forging parts are increasing. The unprecedented development opportunities for forging machinery and equipment have come, and at the same time, the precision requirements for forging machinery presses are also getting higher and higher.

Because the forgeability and plasticity of metals under high temperature conditions are better than those under low temperature conditions, hot die forging presses and automatic production lines are mainly used in the forging market at present, as shown in Figure 1-2, including slider 1, upper Die 2, body 3, lower die 4, worktable 5, and the heat of the forged parts of the hot die forging press under high temperature conditions will also be transmitted to each component link through the upper die 2 and the lower die 4, resulting in various parts Parts are heated and the temperature rises to cause expansion, resulting in a reduction in the fit gap, which in turn affects the improvement of the accuracy of the whole machine; heat conduction will also cause thermal deformation of the working parts such as the slider 1 and the worktable 5, which affects the forging accuracy of the hot die forging press, Machine tool life is affected.

How to control the heat within a certain range so that it will not continue to be transmitted to other moving parts has become the key to restricting the improvement of the precision of hot forging presses, and it is an urgent problem to be solved in the precision improvement of hot forging presses and automated production lines.

Invention content:

In order to make up for the deficiencies in the prior art, the present invention provides a temperature control precision raising device for a hot forging press, which solves the problem that the heat conduction of the high temperature forging parts of the hot forging press affects the precision of the whole machine, and solves the problems of the hot forging press slider, The thermal deformation of the worktable improves the speed, accuracy, production efficiency and quality of processed products of the hot die forging mechanical press and the automatic production line.

The technical scheme that the present invention adopts for solving the problems of the technologies described above is:

Temperature control precision improvement device for hot die forging press, including:

A workbench temperature control device, the workbench temperature control device includes a first temperature control channel arranged on the contact surface between the bottom of the workbench and the fuselage, and the first temperature control channel is provided with an air inlet and an air outlet , the air inlet of the first temperature control channel is connected to the air-conditioning system through a pipeline, and a temperature sensor is installed in the temperature measuring hole on the worktable;

The slider temperature control device, the slider temperature control device includes a second temperature control channel arranged inside the slider and on the contact surface of the slider deflector before and after the slider, and the second temperature control channel is provided with an air inlet And the air outlet, the air inlet of the second temperature control channel is connected with the air-conditioning system through the pipeline, and the temperature sensor is arranged in the temperature measuring hole on the slider and the slider deflector.

The air-conditioning system includes an air cooler arranged on the top of the fuselage, and the air cooler is respectively connected to the first temperature control channel and the second temperature control channel through an air filter and a solenoid valve through pipelines.

The pipeline includes an air intake pipe and a high-pressure hose connected through an adapter block.

The air cooler is a frequency conversion servo air cooler, and the frequency conversion servo air cooler, solenoid valves, and temperature sensors are connected to a PLC control system.

The present invention adopts above-mentioned scheme, has following advantages:

The temperature is detected by each temperature sensor, and the PLC control system controls each solenoid valve to precisely control each temperature control channel to ensure that each temperature control channel can operate independently. It is used in combination with the frequency conversion servo air cooler, and the cold air is delivered to the air cooler through the air cooler. Cool down the slider and the worktable, so that the temperature of the slider and the worktable is controlled at a stable level, and will not cause deformation due to heating and temperature rise; at the same time, it blocks the heat conduction of high-temperature forged parts, and avoids the accuracy of other moving parts due to heat conduction. Changes have been made to improve the overall precision, production efficiency and processed product quality of the hot die forging press, reduce the failure rate and prolong the service life.

Description of drawings:

Fig. 1 is a structural schematic diagram of a hot die forging press in the prior art.

Fig. 2 is a schematic cross-sectional structure diagram taken along the line A-A of Fig. 1 .

Fig. 3 is a structural schematic diagram of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram taken along the line A-A in Fig. 3 .

FIG. 5 is a schematic cross-sectional structural diagram of the slider in FIG. 4 along the B-B direction.

FIG. 6 is a schematic top view of the structure of FIG. 5 .

FIG. 7 is a schematic diagram of the H-direction structure of the worktable in FIG. 3 .

FIG. 8 is a schematic top view of the structure of FIG. 7 .

In the figure, 1. slider, 2. upper mold, 3. body, 4. lower mold, 5. worktable, 6. first temperature control channel, 7. air inlet, 8. air outlet, 9. Temperature measuring hole, 10, temperature sensor, 11, slider guide plate, 12, second temperature control channel, 13, air inlet hole, 14, air outlet hole, 15, air cooler, 16, air filter, 17, Electromagnetic valve, 18, transfer block, 19, intake pipe, 20, high-pressure hose.

Detailed ways:

In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings.

As shown in Figure 3-8, the temperature control precision improvement device of the hot forging press includes:

A workbench temperature control device, the workbench temperature control device includes a first temperature control channel 6 arranged on the contact surface between the bottom of the workbench 5 and the fuselage 3, and the first temperature control channel 6 is provided with an air intake Inlet 7 and air outlet 8, the air inlet 7 of the first temperature control channel 6 is connected to the air-conditioning system through pipelines, and the temperature measuring hole 9 on the worktable 5 is provided with a temperature sensor 10;

The slider temperature control device, the slider temperature control device includes a second temperature control channel 12 located on the contact surface of the slider deflector 11 inside the slider 1 and before and after the slider 1, and the second temperature control channel 12 An air inlet 13 and an air outlet 14 are provided, the air inlet 13 of the second temperature control channel 12 is connected to the air-conditioning system through a pipeline, and the temperature measuring hole 9 on the slider 1 and the slider deflector 11 is provided with a temperature sensor 10.

The air-conditioning system includes an air cooler 15 arranged on the top of the fuselage 3, and the air cooler 15 is connected to the first temperature control channel 6 and the second temperature control channel 12 through an air filter 16 and a solenoid valve 17 respectively through pipelines.

The pipeline includes an air intake pipe 19 and a high-pressure hose 20 connected through an adapter block 18 .

The air cooler 15 is a frequency conversion servo air cooler, and the frequency conversion servo air cooler, solenoid valve 17, and temperature sensors 10 are connected to the PLC control system.

The working principle of the slider temperature control device and the worktable temperature control device is as follows:

The cold air generated by the air cooler 15 passes through the air filter 16 and is divided into upper and lower channels through the solenoid valve 17, leading to the first temperature control channel 6 of the worktable 5 and the second channel of the slider 1 and the slider deflector 11 respectively. The temperature control channel 12 cools it down, and the solenoid valve 17 can ensure that each temperature control channel operates independently; the slider deflector 11 and the worktable 5 are respectively equipped with temperature sensors 10 to monitor the temperature changes of the respective components at any time. When the temperature of the slider 1 or the worktable 5 rises to 80°C, the temperature sensor 10 will feed back the signal to the PLC control system, and the PLC control system will send a signal to control the corresponding solenoid valve 17 to open, and control the air cooler 15 to continue to be the corresponding The components are transported with cold air to cool down, and stop working when the temperature drops to 40°C, so that the temperature of the slider or the worktable remains stable, and will not be deformed due to heating and temperature rise. The overall accuracy will not change due to heat conduction of high-temperature forged parts.

The above specific implementation manners cannot be regarded as limiting the protection scope of the present invention. For those skilled in the art, any substitution, improvement or transformation made to the implementation manners of the present invention shall fall within the protection scope of the present invention.

The parts of the present invention that are not described in detail are known technologies of those skilled in the art.

Claims (4)

1. temperature control precision hoisting device of hot die forging press, its characterized in that: the method comprises the following steps:

The temperature control device of the working table plate comprises a first temperature control channel arranged on the contact surface of the bottom of the working table plate and the machine body, the first temperature control channel is provided with an air inlet and an air outlet, the air inlet of the first temperature control channel is connected with a cold air system through a pipeline, and a temperature sensor is arranged in a temperature measuring hole on the working table plate;

The slider temperature control device comprises a second temperature control channel arranged in the slider and on the contact surface of the slider guide plate in front of and behind the slider, the second temperature control channel is provided with an air inlet and an air outlet, the air inlet of the second temperature control channel is connected with an air conditioning system through a pipeline, and temperature sensors are arranged in temperature measuring holes in the slider and the slider guide plate.

2. The temperature control accuracy improving device of the hot die forging press according to claim 1, wherein: the air cooling system comprises an air cooling machine arranged at the top of the machine body, and the air cooling machine is connected with the first temperature control channel and the second temperature control channel through pipelines respectively through an air filter and an electromagnetic valve.

3. The temperature control accuracy improving device of the hot die forging press according to claim 2, characterized in that: the pipeline comprises an air inlet pipe and a high-pressure hose which are connected through a switching block.

4. The temperature control accuracy improving device of the hot die forging press according to claim 2, characterized in that: the air cooling machine is a variable frequency servo type air cooling machine, the electromagnetic valve and the temperature sensors are connected with the PLC control system.