CN215768071U - Thermal fatigue resistance evaluation testing machine for simulating service environment of forging die - Google Patents
Thermal fatigue resistance evaluation testing machine for simulating service environment of forging die Download PDFInfo
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- CN215768071U CN215768071U CN202121780345.5U CN202121780345U CN215768071U CN 215768071 U CN215768071 U CN 215768071U CN 202121780345 U CN202121780345 U CN 202121780345U CN 215768071 U CN215768071 U CN 215768071U
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Abstract
The utility model relates to a thermal fatigue resistance evaluation testing machine for simulating a service environment of a forging die, and belongs to the technical field of mechanical related metal material experiments. This testing machine includes: the device comprises a workbench, a loading system, a cooling system, a heating system and a control cabinet, wherein the loading system consists of a cylinder, a piston, a movable support, a movable guide rod and a mechanical sensor which are fixed on the workbench, the cooling system consists of a water tank, a water temperature thermometer, a water pump and a cooling circulating water spray head, and the heating system comprises an induction coil and a thermocouple. The utility model can effectively simulate the service working condition of the hot forging die by controlling the heating temperature and the load so as to evaluate the thermal fatigue life of different hot forging die steel materials.
Description
Technical Field
The utility model relates to a thermal fatigue resistance evaluation testing machine for simulating a service environment of a forging die, and belongs to the technical field of mechanical related metal material experiments.
Background
The forging and pressing die is commonly used for producing automobiles and mechanical parts, and the quality and the service life of the steel of the forging and pressing die directly influence the quality of forged and pressed parts, the production efficiency of enterprises and the market competitiveness of products. The most common failure mode during service of a forging die is fatigue damage due to frequent high and low temperature switching and applied loads. Numerous studies have shown that the thermal fatigue resistance of a material is one of the important indicators for evaluating the service life of hot work die steel, and is generally characterized by the number of cracks and the area fraction of the cracks for a specified number of cycles. The experimenter can judge the thermal fatigue resistance of the material by comparing the number and the area fraction of the cracks measured on different material samples under the same test condition. The thermal fatigue test is directly carried out on the hot-work die steel material, and the method has the advantages of short period, low cost, reliable test data and the like, so the method is widely applied to the work of die steel material research and development, heat treatment and processing technology optimization, die steel service life verification, failure analysis and the like. The forging die bears extremely high temperature and large load in the service process, and a die steel thermal fatigue testing machine specially designed for the service condition of the forging die does not exist at present.
SUMMERY OF THE UTILITY MODEL
In order to shorten the development period of die steel for forging and lower the cost of evaluating the service life of the die steel for forging and stamping, the utility model provides a thermal fatigue resistance evaluation testing machine for simulating the service environment of a forging and stamping die.
The technical scheme of the utility model is as follows:
a thermal fatigue resistance evaluation testing machine for simulating the service environment of a forging die comprises a movable support and a fixed support which are arranged in parallel, wherein a water tank is arranged between the movable support and the fixed support; the movable bracket is vertically arranged on the horizontal sliding rail and is in sliding fit with the sliding rail, a movable guide rod is horizontally arranged at the upper part of the movable bracket, the movable guide rod penetrates through one side plate of the water tank and is in sliding fit with the water tank, and a sample to be tested is arranged at one end of the movable guide rod, which extends into the water tank; the fixed bracket is vertically fixed on the workbench, the upper part of the fixed bracket is horizontally provided with a fixed guide rod, the fixed guide rod penetrates through the other side plate of the water tank, and one end of the fixed guide rod extending into the water tank is provided with a hammering block head; the movable guide rod and the fixed guide rod are on the same axis, and the sample to be tested corresponds to the anvil head.
The induction coil encircles the hammering block head outside, and the basin is connected through the water pump with the cooling circulation water shower nozzle, and the cooling circulation water shower nozzle is two, and a cooling circulation water shower nozzle is located the sample top of awaiting measuring, and another cooling circulation water shower nozzle is located the fixed guide arm top next to the induction coil.
The thermal fatigue resistance evaluation testing machine for simulating the service environment of the forging die comprises: the device comprises a workbench, a loading system, a cooling system, a heating system and a control cabinet, wherein the loading system consists of a cylinder, a piston, a movable support, a movable guide rod and a mechanical sensor which are fixed on the workbench, the cooling system consists of a water tank, a water temperature thermometer, a water pump and a cooling circulating water spray head, and the heating system comprises an induction coil and a thermocouple.
The thermal fatigue resistance evaluation testing machine for simulating the service environment of the forging die comprises a cylinder, a slide rail, a movable support and a fixed support, wherein the cylinder, the slide rail, the movable support and the fixed support are arranged on a workbench, a piston at the output end of the cylinder is connected with the outer side of the lower part of the movable support, the movable support is connected with a movable guide rod, and the movable support moves on the slide rail by controlling the cylinder.
The thermal fatigue resistance evaluation testing machine for simulating the service environment of the forging die is characterized in that a water temperature thermometer is inserted into water in a water tank, a thermocouple is arranged on an anvil head, and a mechanical sensor is arranged on a movable guide rod.
The thermal fatigue resistance evaluation testing machine for simulating the service environment of the forging die has the advantages that the output end of the control cabinet respectively communicates with: the cylinder of loading system, cooling system's water pump, heating system's induction coil are connected, the input of switch board respectively through the circuit with: and a mechanical sensor of the loading system is connected with a thermocouple of the heating system.
The thermal fatigue resistance evaluation testing machine for simulating the service environment of the forging die is characterized in that a sample to be tested is connected with a movable guide rod through threads.
The utility model has the advantages and beneficial effects that:
1. the utility model is suitable for most forging die steel, has low requirement on sample processing, can control applied load and reappear the real service process of the forging die; by spraying cooling water on the die steel to be tested, the thermal fatigue failure caused by the rapid cooling process and the cold-hot alternation of the die in the service process is simulated.
2. The utility model can effectively simulate the service working condition of the hot forging die by controlling the heating temperature and the load so as to evaluate the thermal fatigue life of different hot forging die steel materials.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1-a workbench, 2-a cylinder, 3-a piston, 4-a movable support, 5-a slide rail, 6-a movable guide rod, 7-a water tank, 8-a cooling circulating water spray head, 9-a sample to be tested, 10-an anvil head, 11-an induction coil, 12-a control cabinet, 13-a fixed support, 14-a fixed guide rod, 15-a water pump, 16-a water temperature thermometer, 17-a thermocouple and 18-a mechanical sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in FIG. 1, the thermal fatigue resistance evaluation testing machine for simulating the service environment of a forging die mainly comprises: workstation 1, loading system, cooling system, heating system, switch board 12, the loading system comprises cylinder 2, piston 3, movable support 4, activity guide arm 6 and mechanical sensor 18 fixed on workstation 1, and the cooling system comprises basin 7, temperature thermometer 16, water pump 15 and cooling circulation water shower nozzle 8, and heating system includes induction coil 11 and thermocouple 17, and the concrete structure is as follows:
the air cylinder 2, the sliding rail 5, the movable support 4 and the fixed support 13 are arranged on the workbench 1, the movable support 4 and the fixed support 13 are arranged in parallel relatively, a water tank 7 is arranged between the movable support 4 and the fixed support 13, and the water tank 7 is fixedly arranged above the workbench 1; the movable support 4 is vertically arranged on a horizontal sliding rail 5 and is in sliding fit with the sliding rail 5, a movable guide rod 6 is horizontally arranged at the upper part of the movable support 4, the movable guide rod 6 penetrates through one side plate of the water tank 7 and is in sliding fit with the water tank 7, and a sample 9 to be tested is arranged at one end of the movable guide rod 6 extending into the water tank 7; the fixed bracket 13 is vertically fixed on the workbench 1, the upper part of the fixed bracket 13 is horizontally provided with a fixed guide rod 14, the fixed guide rod 14 penetrates through the other side plate of the water tank 7, and one end of the fixed guide rod 14 extending into the water tank 7 is provided with an anvil head 10; the movable guide rod 6 and the fixed guide rod 14 are on the same axis, and the sample to be tested 9 corresponds to the anvil head 10.
A piston 3 at the output end of the cylinder 2 is connected with the outer side of the lower part of a movable support 4, the movable support 4 is connected with a movable guide rod 6, and the movable support 4 is moved on a slide rail 5 by controlling the cylinder 2, so that the movable guide rod 6 and a sample 9 to be tested are driven to move; induction coil 11 surrounds the outside of anvil 10 to heat anvil 10, and thermocouple 17 is connected to anvil 10 to measure the temperature of anvil 10 in real time; the water tank 7 is connected with two cooling circulating water spray heads 8 through a water pump 15, one cooling circulating water spray head 8 is positioned above the sample 9 to be tested and used for cooling the sample 9 to be tested and simulating a medium cooling process between two forging and pressing processes; another cooling circulation water spray 8 is positioned above the fixed guide 14 beside the induction coil 11 to cool the fixed guide 14 to prevent heat from being transferred to the outside, which causes the temperature of the equipment to be too high.
A water temperature thermometer 16 is inserted into the water in the water tank 7, a thermocouple 17 is provided on the anvil head 10, and a mechanical sensor 18 is provided on the movable guide bar 6. Wherein, the anvil head 10 is used for simulating high temperature forging and pressing parts, the sample 9 to be tested is used for simulating forging and pressing dies, the sample 9 to be tested applies pressure to the anvil head 10 through the transmission of the movable guide rod 6, and meanwhile, the anvil head 10 transmits heat to the sample 9 to be tested, and the forging and pressing process is simulated.
The output end of the control cabinet 12 is respectively connected with: the cylinder 2 of the loading system, the water pump 15 of the cooling system and the induction coil 11 of the heating system are connected, and the input end of the control cabinet 12 is respectively connected with: the mechanical sensor 18 of the loading system is connected with the thermocouple 17 of the heating system.
As shown in FIG. 1, the thermal fatigue resistance evaluation testing machine for simulating the service environment of a forging die of the utility model has the following working process:
(1) connecting a sample to be tested 9 with the movable guide rod 6 by threads;
(2) the heating temperature of the induction coil 11 is adjusted through the control cabinet 12, and the anvil head 10 is heated;
(3) opening a cooling circulating water spray head 8 to ensure that the sample 9 to be measured is loaded and rapidly cooled after being heated;
(4) the cylinder 2 is adjusted through the control cabinet 12, the movable support 4 moves on the slide rail 5, the movable guide rod 6 and the sample 9 to be tested are driven to move, the load applied to the sample 9 to be tested is controlled, the loading frequency is controlled, after a certain cycle number, crack observation and characterization are carried out on the surface of the sample 9 to be tested, and finally the thermal fatigue resistance of the material is evaluated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A thermal fatigue resistance evaluation testing machine for simulating a service environment of a forging die is characterized in that a movable support and a fixed support are arranged in parallel relatively, and a water tank is arranged between the movable support and the fixed support; the movable bracket is vertically arranged on the horizontal sliding rail and is in sliding fit with the sliding rail, a movable guide rod is horizontally arranged at the upper part of the movable bracket, the movable guide rod penetrates through one side plate of the water tank and is in sliding fit with the water tank, and a sample to be tested is arranged at one end of the movable guide rod, which extends into the water tank; the fixed bracket is vertically fixed on the workbench, the upper part of the fixed bracket is horizontally provided with a fixed guide rod, the fixed guide rod penetrates through the other side plate of the water tank, and one end of the fixed guide rod extending into the water tank is provided with a hammering block head; the movable guide rod and the fixed guide rod are on the same axis, and the sample to be tested corresponds to the anvil head;
the induction coil encircles the hammering block head outside, and the basin is connected through the water pump with the cooling circulation water shower nozzle, and the cooling circulation water shower nozzle is two, and a cooling circulation water shower nozzle is located the sample top of awaiting measuring, and another cooling circulation water shower nozzle is located the fixed guide arm top next to the induction coil.
2. The machine of claim 1, wherein the machine comprises: the device comprises a workbench, a loading system, a cooling system, a heating system and a control cabinet, wherein the loading system consists of a cylinder, a piston, a movable support, a movable guide rod and a mechanical sensor which are fixed on the workbench, the cooling system consists of a water tank, a water temperature thermometer, a water pump and a cooling circulating water spray head, and the heating system comprises an induction coil and a thermocouple.
3. The machine for evaluating the thermal fatigue resistance of a simulated forging die service environment according to claim 2, wherein the cylinder, the slide rail, the movable bracket and the fixed bracket are arranged on the workbench, the piston at the output end of the cylinder is connected with the outer side of the lower part of the movable bracket, the movable bracket is connected with the movable guide rod, and the movable bracket is moved on the slide rail by controlling the cylinder.
4. The machine for evaluating and testing the thermal fatigue resistance of a simulated forging die service environment according to claim 2, wherein a water temperature thermometer is inserted into water in a water tank, a thermocouple is arranged on the anvil head, and a mechanical sensor is arranged on the movable guide rod.
5. The machine for evaluating and testing the thermal fatigue resistance of a simulated forging die service environment according to claim 2, wherein the output end of the control cabinet is connected with: the cylinder of loading system, cooling system's water pump, heating system's induction coil are connected, the input of switch board respectively through the circuit with: and a mechanical sensor of the loading system is connected with a thermocouple of the heating system.
6. The machine for evaluating and testing the thermal fatigue resistance of a simulated forging die service environment according to claim 2, wherein the sample to be tested is connected with the movable guide rod through a thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121780345.5U CN215768071U (en) | 2021-08-02 | 2021-08-02 | Thermal fatigue resistance evaluation testing machine for simulating service environment of forging die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121780345.5U CN215768071U (en) | 2021-08-02 | 2021-08-02 | Thermal fatigue resistance evaluation testing machine for simulating service environment of forging die |
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| CN215768071U true CN215768071U (en) | 2022-02-08 |
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| CN202121780345.5U Active CN215768071U (en) | 2021-08-02 | 2021-08-02 | Thermal fatigue resistance evaluation testing machine for simulating service environment of forging die |
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2021
- 2021-08-02 CN CN202121780345.5U patent/CN215768071U/en active Active
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Effective date of registration: 20221116 Address after: 518052 810, Hanjing financial center, No. 9968, Shennan Avenue, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Guoke Liudian Technology Co.,Ltd. Address before: 518052 810, Hanjing financial center, No. 9968, Shennan Avenue, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong Patentee before: Shenzhen guokehuayi Bearing Co.,Ltd. |