Device for detecting heat fatigue resistance of die steel

Abstract

The invention relates to the technical field of die steel detection, in particular to a die steel heat fatigue resistance detection device which comprises a pressure applying frame, the inner wall of the pressure applying frame is fixedly connected with a cross regulation and control frame, one end of the pressure applying frame is fixedly connected with a heating seat, and one side of the pressure applying frame is fixedly connected with a control frame. A control panel is arranged on the front face of the control frame, a gas uniformizing side cover is arranged on the side face of the pressure applying frame, a gas control pump machine is arranged on one side of the gas uniformizing side cover, and gas control valve seats are arranged on the four sides of the side face of the gas uniformizing side cover. Through the arrangement of the pressure applying frame, the cross regulation and control frame, the heating seat, the control frame, the control panel, the gas uniformizing side cover, the gas control pump machine, the gas control valve seat and the heating unit, the equipment can perform more efficient, stable and continuous heat fatigue resistance detection operation on the die steel; a worker directly inserts long die steel needing to be detected into the feeding seat at first.

Description

Technical Field

[0001] The invention relates to the technical field of die steel detection, in particular to a device for detecting the thermal fatigue resistance of die steel. Background Art

[0002] Mold steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die casting dies. Mold materials are the material and technical basis of the mold manufacturing industry. Mold steel is a traditional mold material. Its variety, specification, and quality play a decisive role in the performance, service life, and manufacturing cycle of the mold. In recent years, the output, production technology, process equipment, quality, and variety of mold steel at home and abroad have achieved relatively rapid development. A number of high-quality production enterprises such as Fushun Special Steel, Great Wall Special Steel, Xingcheng Special Steel, and Hangzhou Steel have also emerged in China. The development of mold steel has also promoted the development of industrial products towards advanced, individualized, and high value-added directions. Molds have a wide range of uses, and a wide range of materials for manufacturing molds. The most widely used mold material is mold steel.

[0003] For example, the patent document with the announcement number CN 115901839 A discloses a thermal fatigue tester for mold steel. It includes a tester body, a bottom plate is fixedly arranged at the bottom of the tester body near the thermostatic water tank, a first cylinder is fixedly arranged in the middle of the top of the bottom plate, a support frame is rotatably arranged at the top of the first cylinder, and an L-shaped plate is fixedly arranged at the top of the tester body near the thermostatic water tank; the present invention uses the second cylinder to drive the support seat to transfer the mold steel that has been tested for thermal resistance, and then uses the first cylinder to drive the support frame to raise the mold steel on the top of the support seat to a suitable position, and finally uses a magnifying glass to observe the cracks of the mold steel. The device integrates the thermal resistance test and post-test observation equipment, avoids the time-consuming and labor-intensive problem of transferring the mold steel, and improves the overall efficiency of mold steel testing.

[0004] However, during the actual use of this structure, due to the limitation of its own structure, the mold steel can only be placed in the equipment as a whole for thermal fatigue resistance testing. When the equipment is used to test longer mold steel, the equipment cannot place the mold steel as a whole inside. At this time, the mold steel needs to be manually cut and tested, which affects the integrity of the mold steel as a whole and cannot ensure that the test results are more in line with the actual test data of the mold steel. At the same time, when the equipment is testing longer mold steel, the heat of the heated mold steel cannot be efficiently recovered and reused, and daily use needs cannot be met. Therefore, it is urgent to design a mold steel thermal fatigue resistance testing device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a device for detecting the thermal fatigue resistance of mold steel, so as to solve the problem that the existing structure proposed in the above background technology can only put the mold steel as a whole into the equipment for thermal fatigue resistance detection operation due to its own structural limitations during actual use. When the equipment is used to detect longer mold steel, the equipment cannot put the mold steel as a whole into the interior. At this time, the mold steel needs to be manually cut and tested, which affects the overall integrity of the mold steel and cannot ensure that the test results are more consistent with the actual test data of the mold steel. At the same time, when the equipment is testing longer mold steel, the heat of the heated mold steel cannot be efficiently recovered and reused, and daily use needs cannot be met.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting heat fatigue resistance of mold steel, comprising a pressure frame, a cross regulating frame is fixedly connected to the inner wall of the pressure frame, a heating seat is fixedly connected to one end of the pressure frame, a control frame is fixedly connected to one side of the pressure frame, a control panel is arranged on the front of the control frame, a uniform air side cover is arranged on the side of the pressure frame, an air control pump is arranged on one side of the uniform air side cover, air control valve seats are arranged on four sides of the side of the uniform air side cover, a heating unit is arranged on one side of the heating seat, and a heating inner ring is evenly arranged inside the heating seat; A uniform heating seat and a heat dissipation seat, one end of the heating seat is fixedly connected to the uniform heating seat, the other end of the pressure frame is fixedly connected to the heat dissipation seat, one end of the uniform heating seat is fixedly connected to the feed seat, one end of the heat dissipation seat is fixedly connected to the discharge seat, and the bottom ends of the uniform heating seat and the heat dissipation seat are fixedly connected with a connecting channel.

[0007] Preferably, a first flow guide port is provided at one end of the connecting channel, a second flow guide port is provided at the other end of the connecting channel, and a heat-insulating baffle is provided inside the connecting channel.

[0008] Preferably, a driving side seat is provided on one side of the feed seat, a rotating groove is opened on the side of the feed seat, a rotating gear ring is movably connected inside the rotating groove, and a flaw detector body is provided on the inner wall of the rotating gear ring.

[0009] Preferably, a fitting inner ring is provided at one end of the material feeding seat, a material guide cover is fixedly connected to the front side of the fitting inner ring, and one end of the material guide cover is fixedly connected to the material guiding seat.

[0010] Preferably, damping rings are provided at both ends of the inner wall of the material guiding seat, and damping strips are provided at four sides of the inner wall of the material guiding seat.

[0011] Preferably, a ventilation fan is fixedly connected to the top of the uniform heating seat, a dustproof net is provided on the surface of the uniform heating seat, and a ventilation partition is provided on the inner wall of the uniform heating seat.

[0012] Preferably, a heating groove is provided inside the heating seat, and heat insulation rings are provided at both ends of the inner wall of the heating groove.

[0013] Preferably, a pressure groove is fixedly connected to the center of the cross regulating frame, and shrinkage grooves are arranged on four sides of the inner wall of the pressure groove.

[0014] Preferably, a top-connected airbag is provided inside the shrinkage groove, and one end of the top-connected airbag is fixedly connected to a heat-insulating pressure seat.

[0015] Preferably, the uniform heating seat and the heat dissipation seat have the same structure, and the feeding seat and the discharging seat have the same structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The device for detecting the thermal fatigue resistance of mold steel can make the equipment perform the thermal fatigue resistance detection operation of mold steel more efficiently, stably and continuously by arranging the pressure frame, cross regulating frame, heating seat, control frame, control panel, uniform air side cover, air control pump, air control valve seat, heating unit, heating inner ring, feeding seat, discharging seat, driving side seat, rotating groove, rotating gear ring, flaw detector body, heating groove, heat insulation ring, pressure groove, shrinkage groove, top air bag and heat insulation pressure seat. In actual use, the staff first directly inserts the longer mold steel to be detected into the inside of the feeding seat, and then passes it through the heating seat, the pressure frame and finally out of the inside of the discharging seat in turn, and inserts and loads multiple longer mold steels one by one in turn, so as to complete the rapid steel thermal fatigue resistance detection operation of the longer mold steel. When the mold steel enters the inside of the heating seat, the heating unit on the side of the heating seat can be started to cooperate with the heating inner ring inside the heating seat. The mold steel is quickly heated to a suitable temperature for thermal fatigue resistance detection. The mold that has reached a certain temperature then enters the pressure frame and is positioned at the pressure groove in the center of the cross control frame inside the pressure frame. At this time, the air control pump and the air control valve seat on the side gas-uniform side cover of the pressure frame are controlled by the control panel on the front of the control frame to inflate the top airbag inside the shrinkage groove. Then, the heat-insulating pressure seat at one end of the top airbag is pressed and connected to the heated mold steel for thermal fatigue resistance detection. All rapid detection operations on longer mold steel can be completed in sequence. At the same time, the driving side seat on the side of the feed seat and the discharge seat can be started to drive the rotating gear ring and the flaw detector body to rotate at a uniform speed at the rotating groove on the side of the feed seat and the discharge seat. By rotating the flaw detector body to evenly scan the inside of the mold before and after thermal fatigue resistance, the hidden damage problems of the mold steel can be detected more efficiently, which reflects the practicality of the equipment design.

[0017] The device for detecting the thermal fatigue resistance of mold steel further improves the overall use effect of the equipment by arranging a pressure frame, a heating seat, a uniform heating seat, a heat dissipation seat, a feeding seat, a discharging seat, a connecting channel, a first guide port, a second guide port, a heat-insulating baffle, a fitting inner ring, a guide cover, a guide seat, a damping ring, a damping strip, a ventilation fan, a dust-proof net and a ventilation partition. In daily use, after the mold steel inside the pressure frame has completed the detection, it can first enter the interior of the heat dissipation seat. At this time, the ventilation fans on the top of the uniform heating seat and the heat dissipation seat are synchronously started to exhaust and suck air from the dust-proof nets on their top ends respectively. The airflow enters from the heat dissipation seat and blows evenly to the mold steel with a certain amount of heat, so as to quickly dissipate and cool the mold steel inside the heat dissipation seat. Then the hot airflow enters the interior of the uniform heating seat along the connecting channel. The first guide port and the second guide port at both ends of the connecting channel are used for rapid airflow diversion, and the heat preservation partition inside the connecting channel is used for effective heat preservation. The hot airflow entering the uniform heating seat can cooperate with the internal ventilation partition to preheat the mold steel before entering the heating seat, ensuring that more efficient heating operations can be performed inside the heating seat later, thereby improving the heat utilization effect of the equipment. At the same time, when the mold steel is inserted from the feed seat and discharged from the discharge seat, the feed seat and the discharge seat can be guided and limited by the guide cover and the guide seat at their respective ends, and the damping ring and the damping strip inside the guide seat are used to fit and limit the mold steel as a whole. The mold steel inside the feed seat and the discharge seat can also be fit and positioned by the inner wall of the inner ring when the flaw detector body is tested, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 It is an overall schematic diagram of the pressure frame structure of the present invention; Figure 3 It is an overall schematic diagram of the heating seat structure of the present invention; Figure 4 It is an overall schematic diagram of the heat uniformity seat structure of the present invention; Figure 5 It is an overall schematic diagram of the connecting channel structure of the present invention; Figure 6 It is an overall schematic diagram of the feed seat structure of the present invention; Figure 7 For the present invention Figure 1 A magnified schematic diagram of the structure at center A; Figure 8 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the figure.

[0019] In the figure: 1, pressure frame; 2, cross control frame; 3, heating seat; 4, control frame; 5, control panel; 6, air uniformity side cover; 7, air control pump; 8, air control valve seat; 9, heating unit; 10, heating inner ring; 11, uniform heating seat; 12, heat dissipation seat; 13, feed seat; 14, discharge seat; 15, connecting channel; 16, first guide port; 17, second guide port; 18, insulation baffle; 19. Driving side seat; 20. Rotating groove; 21. Rotating gear ring; 22. Flaw detector body; 23. Fitting inner ring; 24. Material guide cover; 25. Material guide seat; 26. Damping ring; 27. Damping strip; 28. Ventilation fan; 29. ​​Dustproof net; 30. Ventilation partition seat; 31. Heating groove; 32. Insulation ring; 33. Pressure groove; 34. Shrinkage groove; 35. Top airbag; 36. Insulation pressure seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-8 , an embodiment provided by the present invention: A device for detecting heat fatigue resistance of mold steel comprises a pressure frame 1, the inner wall of the pressure frame 1 is fixedly connected with a cross regulating frame 2, one end of the pressure frame 1 is fixedly connected with a heating seat 3, one side of the pressure frame 1 is fixedly connected with a control frame 4, a control panel 5 is arranged on the front of the control frame 4, a uniform air side cover 6 is arranged on the side of the pressure frame 1, a control pump 7 is arranged on one side of the uniform air side cover 6, and a control valve seat 8 is arranged on the four sides of the side of the uniform air side cover 6, a heating unit 9 is arranged on one side of the heating seat 3, a heating inner ring 10 is evenly arranged inside the heating seat 3, a ventilation fan 28 is fixedly connected to the top of the uniform heat seat 11, a dustproof net 29 is arranged on the surface of the ventilation fan 28, a ventilation partition seat 30 is arranged on the inner wall of the uniform heat seat 11, a heating groove 31 is opened inside the heating seat 3, and heat insulation rings 32 are arranged at both ends of the inner wall of the heating groove 31 , a pressure groove 33 is fixedly connected to the center of the cross regulating frame 2, and shrinkage grooves 34 are arranged on the four sides of the inner wall of the pressure groove 33. A top-connected airbag 35 is arranged inside the shrinkage groove 34, and one end of the top-connected airbag 35 is fixedly connected to a heat-insulating pressure seat 36. The uniform heating seat 11 and the heat dissipation seat 12 have the same structure, and the feed seat 13 and the discharge seat 14 have the same structure. The mold that reaches a certain temperature then enters the pressure frame 1 and is positioned at the pressure groove 33 at the center of the cross regulating frame 2 inside the pressure frame 1. At this time, the control panel 5 on the front of the control frame 4 controls the air control pump 7 and the air control valve seat 8 on the uniform air side cover 6 on the side of the pressure frame 1, so as to inflate the top-connected airbag 35 inside the shrinkage groove 34, and then the heat-insulating pressure seat 36 at one end of the top-connected airbag 35 is pressed and top-connected to the heated mold steel for heat fatigue resistance detection.

[0022] The uniform heating seat 11 and the heat dissipation seat 12, one end of the heating seat 3 is fixedly connected to the uniform heating seat 11, the other end of the pressure frame 1 is fixedly connected to the heat dissipation seat 12, one end of the uniform heating seat 11 is fixedly connected to the feeding seat 13, one end of the heat dissipation seat 12 is fixedly connected to the discharging seat 14, the bottom ends of the uniform heating seat 11 and the heat dissipation seat 12 are fixedly connected with a connecting channel 15, one end of the connecting channel 15 is provided with a first guide port 16, the other end of the connecting channel 15 is provided with a second guide port 17, the interior of the connecting channel 15 is provided with a heat-insulating baffle 18, one side of the feeding seat 13 is provided with a driving side seat 19, the side of the feeding seat 13 is provided with a rotating groove 20, the interior of the rotating groove 20 is movably connected with a rotating gear ring 21, the inner wall of the rotating gear ring 21 is provided with a flaw detector body 22, the feeding seat One end of 13 is provided with a fitting inner ring 23, the front of the fitting inner ring 23 is fixedly connected with a material guide cover 24, one end of the material guide cover 24 is fixedly connected with a material guide seat 25, damping rings 26 are provided at both ends of the inner wall of the material guide seat 25, and damping strips 27 are provided on the four sides of the inner wall of the material guide seat 25. The ventilation fans 28 at the top of the uniform heating seat 11 and the heat dissipation seat 12 are started synchronously, and exhaust and suction operations are performed from the dustproof nets 29 at the top of each of them. The airflow enters from the heat dissipation seat 12 and blows evenly to the mold steel with a certain amount of heat, so as to quickly dissipate heat and cool down the mold steel inside the heat dissipation seat 12. Then, the hot airflow enters the interior of the uniform heating seat 11 along the connecting channel 15, and the first guide port 16 and the second guide port 17 at both ends of the connecting channel 15 perform rapid airflow guidance.

[0023] Working principle: When in use, the user first directly inserts the longer mold steel that needs to be tested into the inside of the feed seat 13, and then passes through the heating seat 3, the pressure frame 1 and finally out of the inside of the discharge seat 14. Multiple longer mold steels are inserted and loaded one by one in turn to complete the rapid steel thermal fatigue resistance detection operation of the longer mold steel. When the mold steel enters the heating seat 3, the heating unit 9 on the side of the heating seat 3 can be started to cooperate with the heating inner ring 10 inside the heating seat 3 to perform a rapid heating operation on the mold steel, and quickly heat it to a suitable temperature for thermal fatigue resistance detection. Then the mold that reaches a certain temperature enters the pressure frame 1 again, and at the pressure groove 33 in the center of the cross regulating frame 2 inside the pressure frame 1 Positioning is performed. At this time, the control panel 5 on the front of the control frame 4 controls the air control pump 7 and the air control valve seat 8 on the side uniform air cover 6 of the pressure frame 1, so that the air bag 35 inside the shrinkage groove 34 can be inflated, and then the heat insulation pressure seat 36 at one end of the top air bag 35 is pressed and connected to the heated mold steel to perform thermal fatigue resistance detection. All rapid detection operations on longer mold steel can be completed in sequence. At the same time, the driving side seat 19 on the side of the feed seat 13 and the discharge seat 14 can be started to drive the rotating gear ring 21 and the flaw detector body 22 to rotate at a uniform speed at the rotating groove 20 on the side of the feed seat 13 and the discharge seat 14. By rotating the flaw detector body 22 to uniformly scan the inside of the mold before and after thermal fatigue resistance, it is more efficient. To detect hidden damage to the mold steel, in daily use, after the mold steel inside the pressure frame 1 has been inspected, you can first enter the heat sink 12, and then start the ventilation fans 28 at the top of the heat sink 11 and the heat sink 12 simultaneously, and exhaust and suck air from the dustproof nets 29 at the top of each of them, and the air enters from the heat sink 12 and blows evenly to the mold steel with a certain amount of heat, so as to quickly dissipate heat and cool down the mold steel inside the heat sink 12, and then the hot air flows along the connecting channel 15 into the interior of the heat sink 11, and the first guide port 16 and the second guide port 17 at both ends of the connecting channel 15 quickly guide the airflow, and the heat preservation partition 18 inside the connecting channel 15 effectively keeps the heat warm. The hot air flow entering the uniform heating seat 11 can cooperate with the internal ventilation partition seat 30 to preheat the mold steel before entering the heating seat 3, ensuring that more efficient heating operations can be performed inside the heating seat 3 later, improving the equipment's utilization of heat. At the same time, when the mold steel is inserted from the feed seat 13 and discharged from the discharge seat 14, the feed seat 13 and the discharge seat 14 can be guided and limited by the guide cover 24 and the guide seat 25 at their respective ends, and the damping ring 26 and the damping strip 27 inside the guide seat 25 are used to fit and limit the mold steel as a whole. The mold steel inside the feed seat 13 and the discharge seat 14 can also be fit and positioned by the inner wall of the fit inner ring 23 when the flaw detector body 22 is being inspected. The above is the entire working principle of the present invention.

[0024] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for detecting thermal fatigue resistance of mold steel, comprising a pressure frame (1), characterized in that: The inner wall of the pressure frame (1) is fixedly connected to a cross regulating frame (2), one end of the pressure frame (1) is fixedly connected to a heating seat (3), one side of the pressure frame (1) is fixedly connected to a control frame (4), the front of the control frame (4) is provided with a control panel (5), the side of the pressure frame (1) is provided with a uniform air side cover (6), one side of the uniform air side cover (6) is provided with an air control pump (7), the four sides of the side of the uniform air side cover (6) are provided with air control valve seats (8), one side of the heating seat (3) is provided with a heating unit (9), and the interior of the heating seat (3) is evenly provided with a heating inner ring (10); A uniform heating seat (11) and a heat dissipation seat (12), wherein one end of the heating seat (3) is fixedly connected to the uniform heating seat (11), and the other end of the pressure frame (1) is fixedly connected to the heat dissipation seat (12); one end of the uniform heating seat (11) is fixedly connected to a feed seat (13), and one end of the heat dissipation seat (12) is fixedly connected to a discharge seat (14); and the bottom ends of the uniform heating seat (11) and the heat dissipation seat (12) are fixedly connected to a connecting channel (15).

2. The thermal fatigue resistance detection device for mold steel according to claim 1, characterized in that: A first flow guide port (16) is provided at one end of the connecting channel (15), a second flow guide port (17) is provided at the other end of the connecting channel (15), and a heat-insulating baffle (18) is provided inside the connecting channel (15).

3. The thermal fatigue resistance detection device for mold steel according to claim 1 is characterized in that: A driving side seat (19) is provided on one side of the feed seat (13), a rotating groove (20) is provided on the side of the feed seat (13), a rotating gear ring (21) is movably connected inside the rotating groove (20), and a flaw detector body (22) is provided on the inner wall of the rotating gear ring (21).

4. The thermal fatigue resistance detection device for mold steel according to claim 1, characterized in that: A fitting inner ring (23) is provided at one end of the material feeding seat (13), a material guide cover (24) is fixedly connected to the front side of the fitting inner ring (23), and a material guide seat (25) is fixedly connected to one end of the material guide cover (24).

5. The thermal fatigue resistance detection device for mold steel according to claim 4, characterized in that: Damping rings (26) are provided at both ends of the inner wall of the material guiding seat (25), and damping strips (27) are provided at four sides of the inner wall of the material guiding seat (25).

6. The thermal fatigue resistance detection device for mold steel according to claim 1, characterized in that: A ventilation fan (28) is fixedly connected to the top of the uniform heating seat (11), a dustproof net (29) is provided on the surface of the uniform heating seat (28), and a ventilation partition seat (30) is provided on the inner wall of the uniform heating seat (11).

7. The thermal fatigue resistance detection device for mold steel according to claim 1, characterized in that: A heating groove (31) is provided inside the heating seat (3), and heat insulation rings (32) are provided at both ends of the inner wall of the heating groove (31).

8. The thermal fatigue resistance detection device for mold steel according to claim 1, characterized in that: A pressure groove (33) is fixedly connected to the center of the cross regulating frame (2), and contraction grooves (34) are arranged on four sides of the inner wall of the pressure groove (33).

9. The thermal fatigue resistance detection device for mold steel according to claim 8, characterized in that: A top-connected airbag (35) is provided inside the shrinkage groove (34), and one end of the top-connected airbag (35) is fixedly connected to a heat-insulating pressure seat (36).

10. The thermal fatigue resistance detection device for mold steel according to claim 1, characterized in that: The uniform heating seat (11) and the heat dissipation seat (12) have the same structure, and the feeding seat (13) and the discharging seat (14) have the same structure.

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