Equipment for testing low-temperature impact resistance of high-strength steel welding wire

Abstract

The utility model discloses high-strength steel welding wire low-temperature impact resistance testing equipment which comprises a testing cabinet, an operation panel is fixedly installed on one side of the top end of the testing cabinet, a testing machine shell is fixedly installed on the other side of the top end of the testing cabinet, and a supporting mechanism is fixedly installed at the bottom end of the inner wall of the testing machine shell. The middle of the top end of the testing machine shell is fixedly provided with the impact mechanism, the two sides of the bottom end of the inner wall of the testing machine shell are fixedly provided with the height rods, one side of the top end of the testing machine shell is fixedly provided with the temperature sensor, and the supporting mechanism comprises a supporting frame and a placing frame. By arranging the supporting mechanism, after the high-strength steel welding wire is impacted by the impact head, a spring shock absorber buffers the impact force, a sliding plate slides along a height rod, and the sliding plate extrudes a connecting spring to buffer the impact force, so that the test equipment is prevented from being damaged by the impact force, and the service life of the test equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high-strength steel welding wire testing, in particular to a device for testing the low-temperature impact resistance of high-strength steel welding wire. Background Art

[0002] High-strength steel welding wires play a vital role in the welding process. They can provide high-strength and high-toughness welds, ensuring that the mechanical properties of the welded joints are equivalent to or higher than those of the parent material. Such welding wires usually add alloy elements such as molybdenum, titanium, nickel and chromium, etc., which improve the strength and toughness of the welds through mechanisms such as solid solution strengthening, precipitation strengthening and grain refinement. In addition, high-strength steel welding wires also have good arc stability and small spatter, and are suitable for all-round welding, including gas shielded welding and submerged arc welding and other welding methods. Before using the high-strength steel welding wire, it is necessary to place the high-strength steel welding wire on the test equipment to test its low-temperature impact resistance.

[0003] However, traditional testing equipment has the following disadvantages:

[0004] When traditional testing equipment performs impact tests on high-strength steel welding wires, the placement of the high-strength steel welding wires is easily damaged by the impact of the impact head for a long time, which shortens the service life of the testing equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a high-strength steel welding wire low-temperature impact resistance testing device to solve the problem that when the traditional testing equipment proposed in the above background technology performs impact testing on the high-strength steel welding wire, the high-strength steel welding wire is easily damaged due to the impact of the impact head for a long time, thereby shortening the service life of the testing equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength steel welding wire low-temperature impact resistance testing equipment, comprising a test cabinet, an operation panel is fixedly installed on one side of the top of the test cabinet, a test casing is fixedly installed on the other side of the top of the test cabinet, a supporting mechanism is fixedly installed on the bottom end of the inner wall of the test casing, an impact mechanism is fixedly installed in the middle of the top of the test casing, height rods are fixedly installed on both sides of the bottom end of the inner wall of the test casing, a temperature sensor is fixedly installed on one side of the top of the test casing, the supporting mechanism comprises a supporting frame and a placing frame, the top of the supporting frame is fixedly connected to the bottom end of the placing frame, a placing plate is slidably connected to the inside of the placing frame, the impact mechanism comprises a screw and a lifting platform, the bottom end of the screw is threadedly connected to a pushing shell, the bottom end of the pushing shell is connected to the top of the lifting platform, and the bottom end of the lifting platform is fixedly installed with an impact head.

[0007] Preferably, a spring shock absorber is fixedly installed in the middle of the bottom end of the placement plate, and the bottom end of the spring shock absorber is fixedly connected to the middle of the bottom end of the inner wall of the placement frame. Support springs are fixedly installed at the four corners of the bottom end of the inner wall of the placement frame. The top ends of the four support springs are respectively fixedly connected to the four corners of the bottom end of the placement plate. The bottom end of the support frame is fixedly connected to the test casing. The high-strength steel welding wire is placed on the placement plate. After the high-strength steel welding wire is impacted, the spring shock absorber buffers the impact force generated to avoid damage to the support mechanism during the impact.

[0008] Preferably, sliding plates slidably connected to the height rods are fixedly installed on both sides of the placement frame, connecting springs are fixedly installed on the bottom ends of the two sliding plates, and the bottom ends of the two connecting springs are fixedly connected to the side opposite to the test housing, and the support mechanism is installed in the test housing through a support frame.

[0009] Preferably, movable shells are fixedly installed on both sides of the top of the lifting platform, and the two movable shells are slidably connected to the two height rods respectively. A stepper motor is fixedly installed in the middle of the top of the test housing, and the output end of the stepper motor is fixedly connected to the end opposite to the screw rod. The stepper motor is started after being energized, and the stepper motor drives the screw rod to rotate. The threads on the surface of the screw rod match the threads on the inner wall of the pushing shell. The pushing shell pushes the lifting platform from the top, and the lifting platform slides relative to the height rod through the movable shell to adjust the impact height of the impact head, and the impact head performs an impact test on the high-strength steel welding wire.

[0010] Preferably, a low-temperature table is fixedly installed on one side of the test casing, a fan with a condenser is fixedly installed on the top of the low-temperature table, an air outlet of the fan with condenser is fixedly connected to a conveying pipe extending to the inside of the test casing, an air inlet of the fan with condenser is fixedly connected to an extraction pipe with a filter extending to the outside, and an exhaust pipe is fixedly connected to a side of the test casing away from the low-temperature table. The fan with condenser is started after being powered on, and the fan with condenser extracts external environmental gas through the extraction pipe with a filter, impurities in the gas are intercepted by the filter, and the low-temperature gas after purification and refrigeration by the condenser is conveyed to the test casing through the conveying pipe to perform low-temperature testing on the high-strength steel welding wire placed therein, and the gas in the test casing is discharged to the outside through the exhaust pipe, and the temperature sensor senses the temperature in the test casing in real time.

[0011] Preferably, the front of the test cabinet is slidably connected to two maintenance doors, and the front of the test housing is hinged with a sealing door, and the user opens the sealing door to place the high-strength steel welding wire on the supporting mechanism inside the test housing.

[0012] Preferably, moving wheels are fixedly installed on the four corners of the bottom end of the test cabinet, and four shock-absorbing feet are fixedly installed on the test cabinet, each of which is located on one side of the moving wheel. After the moving wheel contacts the ground, it rotates due to friction, which is convenient for users to transfer and transport the test cabinet.

[0013] Compared with the prior art, the beneficial effects of the utility model are: by setting up a supporting mechanism, after the high-strength steel welding wire is impacted by the impact head, the spring shock absorber buffers the impact force, and the sliding plate slides along the height rod, and the sliding plate squeezes the connecting spring to buffer the impact force, thereby avoiding damage to the test equipment due to the impact force and extending the service life of the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial schematic diagram of the utility model;

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 It is a cross-sectional view of the utility model;

[0017] Figure 4 It is a cross-sectional view of the support mechanism of the utility model;

[0018] Figure 5 It is a side view of the impact mechanism of the utility model.

[0019] In the figure: 1. test cabinet; 2. operation panel; 3. test casing; 4. sealing door; 5. temperature sensor; 6. impact mechanism; 61. stepper motor; 62. lead screw; 63. push shell; 64. lifting platform; 65. movable shell; 66. impact head; 7. conveying pipeline; 8. fan with condenser; 9. extraction pipeline with filter; 10. low temperature platform; 11. maintenance door; 12. moving wheel; 13. shock-absorbing foot; 14. exhaust duct; 15. supporting mechanism; 151. supporting frame; 152. placing frame; 153. sliding board; 154. placing board; 155. spring shock absorber; 156. supporting spring; 16. connecting spring; 17. height rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-5The utility model provides a low-temperature impact resistance testing device for high-strength steel welding wire, comprising a testing cabinet 1, an operation panel 2 is fixedly installed on one side of the top of the testing cabinet 1, a testing casing 3 is fixedly installed on the other side of the top of the testing cabinet 1, a supporting mechanism 15 is fixedly installed on the bottom end of the inner wall of the testing casing 3, an impact mechanism 6 is fixedly installed in the middle of the top of the testing casing 3, height rods 17 are fixedly installed on both sides of the bottom end of the inner wall of the testing casing 3, a temperature sensor 5 is fixedly installed on one side of the top of the testing casing 3, the supporting mechanism 15 comprises a supporting frame 151 and a placing frame 152, the top of the supporting frame 151 is fixedly connected to the bottom end of the placing frame 152, the inside of the placing frame 152 is slidably connected to a placing plate 154, the impact mechanism 6 comprises a screw rod 62 and a lifting platform 64, the bottom end of the screw rod 62 is threadedly connected to a pushing shell 63, the bottom end of the pushing shell 63 is connected to the top of the lifting platform 64, and the bottom end of the lifting platform 64 is fixedly installed with an impact head 66.

[0022] A spring shock absorber 155 is fixedly installed in the middle of the bottom end of the placement plate 154, and the bottom end of the spring shock absorber 155 is fixedly connected to the middle of the bottom end of the inner wall of the placement frame 152. Support springs 156 are fixedly installed at the four corners of the bottom end of the inner wall of the placement frame 152. The top ends of the four support springs 156 are respectively fixedly connected to the four corners of the bottom end of the placement plate 154. The bottom end of the support frame 151 is fixedly connected to the test housing 3. The high-strength steel welding wire is placed on the placement plate 154. After the high-strength steel welding wire is impacted, the spring shock absorber 155 buffers the impact force generated to avoid damage to the support mechanism 15 during the impact.

[0023] Slide plates 153 slidably connected to the height rod 17 are fixedly installed on both sides of the placement frame 152, and connecting springs 16 are fixedly installed on the bottom ends of the two slide plates 153. The bottom ends of the two connecting springs 16 are fixedly connected to the side opposite to the test housing 3, and the support mechanism 15 is installed in the test housing 3 through the support frame 151.

[0024] Movable shells 65 are fixedly installed on both sides of the top of the lifting platform 64. The two movable shells 65 are slidably connected to the two height rods 17 respectively. A stepper motor 61 is fixedly installed in the middle of the top of the test casing 3. The output end of the stepper motor 61 is fixedly connected to the end opposite to the screw rod 62. The stepper motor 61 is started after being energized, and the stepper motor 61 drives the screw rod 62 to rotate. The threads on the surface of the screw rod 62 match the threads on the inner wall of the pushing shell 63. The pushing shell 63 pushes the lifting platform 64 from the top. The lifting platform 64 slides relative to the height rod 17 through the movable shell 65 to adjust the impact height of the impact head 66, and the impact head 66 performs an impact test on the high-strength steel welding wire.

[0025] A low-temperature table 10 is fixedly installed on one side of the test casing 3, and a fan 8 with a condenser is fixedly installed on the top of the low-temperature table 10. The air outlet of the fan 8 with a condenser is fixedly connected to a conveying pipe 7 extending to the inside of the test casing 3, and the air inlet of the fan 8 with a condenser is fixedly connected to an extraction pipe 9 with a filter extending to the outside. The side of the test casing 3 away from the low-temperature table 10 is fixedly connected to an exhaust pipe 14. The fan 8 with a condenser is started after being powered on, and the fan 8 with a condenser extracts external environmental gas through the extraction pipe 9 with a filter, and impurities in the gas are intercepted by the filter. The low-temperature gas after purification and refrigeration by the condenser is transported to the test casing 3 through the conveying pipe 7 to perform low-temperature testing on the high-strength steel welding wire placed therein, and the gas in the test casing 3 is discharged to the outside through the exhaust pipe 14, and the temperature sensor 5 senses the temperature in the test casing 3 in real time.

[0026] The front of the test cabinet 1 is slidably connected to two maintenance doors 11 , and the front of the test housing 3 is hinged with a sealing door 4 . The user opens the sealing door 4 and places the high-strength steel welding wire on the supporting mechanism 15 inside the test housing 3 .

[0027] The four corners at the bottom of the test cabinet 1 are fixedly installed with moving wheels 12. The test cabinet 1 is fixedly installed with four shock-absorbing feet 13 located on one side of the moving wheels 12. After the moving wheels 12 come into contact with the ground, they rotate due to friction, which makes it easy for users to transfer and transport the test cabinet 1.

[0028] When the embodiment of the present application is in use: the user opens the sealed door 4 and places the high-strength steel welding wire on the supporting mechanism 15 in the test casing 3, the fan 8 with condenser is started after being powered on, and the fan 8 with condenser extracts external environmental gas through the extraction pipe 9 with filter, and impurities in the gas are intercepted by the filter, and the low-temperature gas after purification and refrigeration by the condenser is transported to the test casing 3 through the delivery pipe 7 to perform low-temperature testing on the high-strength steel welding wire placed therein, and the gas in the test casing 3 is discharged to the outside through the exhaust pipe 14, and the temperature sensor 5 senses the temperature in the test casing 3 in real time, and the stepper motor 61 is started after being powered on, and the stepper motor 61 drives the screw rod 62 to rotate, and the thread on the surface of the screw rod 62 matches the thread on the inner wall of the push shell 63, and the push shell 63 pushes the lifting platform 64 from the top, and the lifting platform 64 slides relative to the height rod 17 through the movable shell 65, and the impact height of the impact head 66 is adjusted, and the impact head 66 performs an impact test on the high-strength steel welding wire, and then the sealed door 4 is opened to take out the tested high-strength steel welding wire.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for testing the low temperature impact resistance of high-strength steel welding wire, comprising a test cabinet (1), characterized in that: An operation panel (2) is fixedly mounted on one side of the top of the test cabinet (1), a test housing (3) is fixedly mounted on the other side of the top of the test cabinet (1), a support mechanism (15) is fixedly mounted on the bottom end of the inner wall of the test housing (3), an impact mechanism (6) is fixedly mounted in the middle of the top of the test housing (3), height rods (17) are fixedly mounted on both sides of the bottom end of the inner wall of the test housing (3), a temperature sensor (5) is fixedly mounted on one side of the top of the test housing (3), and the support mechanism (15) The invention comprises a support frame (151) and a placement frame (152), wherein the top end of the support frame (151) is fixedly connected to the bottom end of the placement frame (152), and the interior of the placement frame (152) is slidably connected to a placement plate (154). The impact mechanism (6) comprises a screw rod (62) and a lifting platform (64), the bottom end of the screw rod (62) is threadedly connected to a push shell (63), the bottom end of the push shell (63) is connected to the top end of the lifting platform (64), and the bottom end of the lifting platform (64) is fixedly mounted with an impact head (66).

2. The low temperature impact resistance testing equipment for high strength steel welding wire according to claim 1, characterized in that: A spring shock absorber (155) is fixedly installed in the middle of the bottom end of the placement plate (154), and the bottom end of the spring shock absorber (155) is fixedly connected to the middle of the bottom end of the inner wall of the placement frame (152). Support springs (156) are fixedly installed at the four corners of the bottom end of the inner wall of the placement frame (152), and the top ends of the four support springs (156) are respectively fixedly connected to the four corners of the bottom end of the placement plate (154). The bottom end of the support frame (151) is fixedly connected to the test housing (3).

3. The low temperature impact resistance testing equipment for high strength steel welding wire according to claim 1, characterized in that: Slide plates (153) slidably connected to the height rod (17) are fixedly mounted on both sides of the placement frame (152), and connecting springs (16) are fixedly mounted on the bottom ends of the two slide plates (153), and the bottom ends of the two connecting springs (16) are fixedly connected to the side directly opposite to the test housing (3).

4. The low temperature impact resistance testing equipment for high strength steel welding wire according to claim 1, characterized in that: Movable shells (65) are fixedly mounted on both sides of the top of the lifting platform (64), and the two movable shells (65) are slidably connected to the two height rods (17) respectively. A stepper motor (61) is fixedly mounted in the middle of the top of the test housing (3), and the output end of the stepper motor (61) is fixedly connected to the end opposite to the lead screw (62).

5. The low temperature impact resistance testing equipment for high strength steel welding wire according to claim 1, characterized in that: A low-temperature table (10) is fixedly mounted on one side of the test housing (3); a fan with a condenser (8) is fixedly mounted on the top of the low-temperature table (10); an air outlet of the fan with a condenser (8) is fixedly connected to a delivery pipeline (7) extending to the inside of the test housing (3); an air inlet of the fan with a condenser (8) is fixedly connected to an extraction pipeline (9) with a filter extending to the outside; and an exhaust pipeline (14) is fixedly connected to a side of the test housing (3) away from the low-temperature table (10).

6. The low temperature impact resistance testing equipment for high strength steel welding wire according to claim 1, characterized in that: The front of the test cabinet (1) is slidably connected to two maintenance doors (11), and the front of the test housing (3) is hingedly connected to a sealing door (4).

7. The low temperature impact resistance testing equipment for high strength steel welding wire according to claim 1, characterized in that: The four corners at the bottom of the test cabinet (1) are all fixedly mounted with moving wheels (12), and the test cabinet (1) is fixedly mounted with four shock-absorbing feet (13) respectively located on one side of the moving wheels (12).

Images