Steel toughness detection device

Abstract

The invention relates to the technical field of building steel quality detection, in particular to a steel toughness detection device which comprises a base, two symmetrically-arranged positioning blocks are fixedly installed on the base through a support, downward-pressing sliding grooves are formed in the upper surfaces of the two positioning blocks correspondingly, and the two ends of each downward-pressing sliding groove penetrate through the surfaces of the two sides of the corresponding positioning block correspondingly. A pressing-down sliding groove is formed in the base, a supporting unit is arranged in the pressing-down sliding groove, two symmetrically-arranged fixing rods are fixedly installed on the base, an air cylinder is fixedly installed between the two fixing rods through a support, impact sliding grooves are formed in the sides, close to each other, of the two fixing rods, and an impact unit is arranged between the two fixing rods. The supporting unit and the impact unit are designed, the two ends of the steel pipe can be clamped through the supporting unit, the impact unit is driven by the air cylinder to move downwards, the impact blade impacts the steel pipe with different forces, and the problem that an existing toughness detection machine cannot adapt to the building steel pipe is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building steel quality detection, and in particular to a steel toughness detection device. Background Art

[0002] Construction steel refers to various types of steel materials used in construction projects. Its toughness is an indicator of the quality of the material, which indicates the ability of the material to absorb energy during deformation and fracture. Generally, the toughness of construction steel needs to be tested after it leaves the factory.

[0003] There are many ways to test toughness. In construction steel, the fracture toughness of the steel is usually tested. In the prior art, the fracture toughness of steel is generally tested by applying an impact load to the steel and observing the steel's fracture resistance. The test object is generally a cut sample. Steel pipes are commonly used steel for building temporary buildings on construction sites. The following problems may occur during testing: 1. Existing fracture toughness testing machines are generally small, while construction steel pipes are larger in size and cannot be well adapted to construction steel pipes; 2. When testing the toughness of a steel pipe, it may also be necessary to test its supporting strength, but existing toughness testing machines cannot test the supporting strength of a steel pipe and require subsequent manual testing, which is inefficient. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a steel toughness detection device.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a steel toughness detection device, comprising a base, on which two symmetrically arranged positioning blocks are fixedly mounted through a bracket, and the upper surfaces of the two positioning blocks are provided with downward pressing grooves, and the two ends of the downward pressing grooves respectively penetrate the surfaces on both sides of the positioning blocks, and a support unit is arranged in the downward pressing groove; The support unit is composed of a support slider and a rotating block. The upper surface and the lower surface of the rotating block are both arc-shaped structures. The support slider is slidably connected with the downward pressure slide groove. A rotating groove is provided on the upper surface of the support slider. The two ends of the rotating groove respectively penetrate the surfaces on both sides of the support slider. The rotating block is hinged on the inner wall of the rotating groove. A steel pipe is provided on the top of the rotating block. Two symmetrically arranged fixing rods are fixedly installed on the base. A cylinder is fixedly installed between the two fixing rods through a bracket. An impact slide groove is provided on the side where the two fixing rods are close to each other, and an impact unit is provided between the two fixing rods. The impact unit consists of an active slider, a driven slider and an impact blade. The active slider and the driven slider are arranged between two fixed rods. Both ends of the active slider and the driven slider are slidably connected to the impact slide groove. The active slider is fixedly installed on the telescopic end of the cylinder, and the impact blade is fixedly installed on the bottom of the driven slider.

[0006] In the above-mentioned steel toughness detection device, the upper surface of the active slider is provided with two symmetrically arranged locking grooves, and the upper surface of the driven slider is provided with two symmetrically arranged horizontal slide grooves, the horizontal slide grooves correspond to the locking grooves one by one, and a locking slider is slidably connected in the horizontal slide groove, and the locking slider extends out of the horizontal slide groove at one end away from the horizontal slide groove and is fixedly installed with a locking rod, which passes through the correspondingly arranged locking groove, and a locking tooth of a triangular structure is fixedly installed at one end of the locking rod away from the locking slider, and the installation directions of the two locking teeth are opposite, and unlocking rods are fixedly installed on the inner walls of the two impact slide grooves through brackets, and the lower surface of the unlocking rod is an arc-shaped structure, and the unlocking rod corresponds to the locking tooth one by one.

[0007] In the above-mentioned steel toughness detection device, two symmetrically arranged through holes are opened on the upper surface of the active slider, and two symmetrically arranged extrusion rods are fixedly installed on the upper surface of the driven slider. The extrusion rods correspond to the through holes one by one and pass through the corresponding through holes. Extrusion sliders are slidably connected in the two impact chutes, and the two extrusion sliders are respectively in contact with the two extrusion rods.

[0008] In the above-mentioned steel toughness detection device, a clamping groove is provided in the driven slider, and the two sides of the clamping groove respectively pass through the surfaces of the two sides of the driven slider, and two symmetrical C-shaped clamping sliders are arranged between the two fixed rods. The two clamping sliders are both slidably connected to the clamping grooves, and the clamping grooves are extended from both ends of the clamping sliders and fixedly installed with downward pressure blocks. An extrusion groove is provided on the side where the two fixed rods are close to each other, and the extrusion grooves correspond to the downward pressure blocks one by one, and a shift block is inserted in the extrusion groove.

[0009] In the above-mentioned steel toughness detection device, spring grooves are opened on the sides of the two clamping sliders close to each other, and the opening directions of the two spring grooves are opposite. A No. 1 spring telescopic rod is fixedly installed in the two spring grooves, and the telescopic ends of the two No. 1 spring telescopic rods are in conflict with each other.

[0010] In the above-mentioned steel toughness testing device, a fixed vertical sleeve is fixedly installed on the base, a vertical rod is inserted in the vertical sleeve, an arc-shaped resistance block is fixedly installed on the side of the vertical rod away from the vertical sleeve, the resistance block resists against the steel pipe, and the two rotating blocks are hinged with adjustable telescopic rods on the sides close to each other, and the telescopic ends of the two adjustable telescopic rods are hinged on the vertical rod.

[0011] In the above-mentioned steel toughness testing device, an L-shaped fixed block is fixedly installed on one side of the two rotating blocks that are away from each other, and a No. 2 spring telescopic rod is fixedly installed on the two fixed blocks. A balancing block is fixedly installed on the telescopic ends of the two No. 2 spring telescopic rods, and the balancing block is in contact with the steel pipe.

[0012] In the above-mentioned steel toughness detection device, the bottom of the lower pressing block is rotatably connected to a roller.

[0013] Compared with the existing technology, the advantages of the toughness testing device for construction steel are: 1. The present invention is designed with a support unit and an impact unit. The two ends of the steel pipe can be clamped by the support unit, and the impact unit is driven downward by the cylinder to make the impact blade hit the steel pipe with different forces, thus solving the problem that the existing toughness testing machine cannot adapt to construction steel pipes.

[0014] 2. The present invention designs a pressing block, which is driven by a cylinder to move downward, so that the pressing block contacts the inclined surface of the displacement block and contacts each other. The supporting strength of the steel pipe can be detected by squeezing the steel pipe by the pressing block, thus solving the problem of low efficiency caused by subsequent manual detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the planar structure of the present invention.

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the present invention.

[0018] Figure 4 The present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure 5 It is a schematic cross-sectional structural diagram of the impact chute of the present invention.

[0020] Figure 6 The present invention Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] Figure 7 The present invention Figure 5 Schematic diagram of the local enlarged structure at point C in the middle.

[0022] Figure 8 It is a schematic cross-sectional structural diagram of the support unit of the present invention.

[0023] Fig. 9 It is a schematic cross-sectional structural diagram of the roller and the extrusion groove of the present invention.

[0024] In the figure: 1, base; 2, positioning block; 201, pressing slide; 3, supporting unit; 301, supporting slider; 302, rotating block; 303, rotating slot; 4, fixing rod; 401, impact slide; 5, cylinder; 6, impact unit; 7, active slider; 8, driven slider; 9, impact blade; 701, locking slot; 801, horizontal slide; 802, locking slider; 803, locking rod; 804, locking tooth; 402 , unlocking rod; 702, through hole; 805, squeezing rod; 403, squeezing slider; 806, clamping slide groove; 807, clamping slider; 10, pressing block; 404, squeezing groove; 11, shifting block; 808, spring groove; 12, spring telescopic rod No. 1; 13, vertical sleeve; 14, vertical rod; 15, resistance block; 16, adjusting telescopic rod; 17, fixing block; 18, spring telescopic rod No. 2; 19, balancing block; 20, roller. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Reference Figure 1-Figure 9A steel toughness detection device comprises a base 1, on which two symmetrically arranged positioning blocks 2 are fixedly installed through a bracket, the upper surfaces of the two positioning blocks 2 are provided with downward pressing grooves 201, and the two ends of the downward pressing grooves 201 respectively penetrate the surfaces on both sides of the positioning blocks 2, and a supporting unit 3 is arranged in the downward pressing groove 201, and the supporting unit 3 is composed of a supporting slider 301 and a rotating block 302, and the upper and lower surfaces of the rotating block 302 are both arc-shaped structures, and the supporting slider 301 is slidably connected with the downward pressing groove 201, and the upper surface of the supporting slider 301 is provided with a rotating groove 303, and the two ends of the rotating groove 303 respectively penetrate the surfaces on both sides of the supporting slider 301, and the rotating block 302 is hinged on the inner wall of the rotating groove 303, and a steel pipe is arranged on the top of the rotating block 302, and two symmetrically arranged fixing rods 4 are fixedly installed on the base 1, and a cylinder 5 is fixedly installed between the two fixing rods 4 through a bracket, and the two fixing rods 4 are mutually connected. An impact chute 401 is provided on each side close to each other, and an impact unit 6 is provided between the two fixed rods 4. The impact unit 6 is composed of an active slider 7, a driven slider 8 and an impact blade 9. The active slider 7 and the driven slider 8 are arranged between the two fixed rods 4. Both ends of the active slider 7 and the driven slider 8 are slidably connected with the impact chute 401. The active slider 7 is fixedly installed on the telescopic end of the cylinder 5, and the impact blade 9 is fixedly installed at the bottom of the driven slider 8. The support unit 3 is used to support the two ends of the steel pipe. The active slider 7 is driven by the cylinder 5 to move, so that the active slider 7 drives the impact unit 6 to hit the middle part of the steel pipe, which can detect the toughness of the steel pipe. A spring No. 1 is provided in the downward pressure chute 201, which is used to produce a certain buffering effect on the impact. When the steel pipe is bent, the rotating block 302 is rotated by a certain angle so that the supporting force of the rotating block 302 on the steel pipe is perpendicular to the steel pipe, which can stabilize the steel pipe.

[0028] The upper surface of the active slider 7 is provided with two symmetrically arranged locking grooves 701, and the upper surface of the driven slider 8 is provided with two symmetrically arranged horizontal slide grooves 801, the horizontal slide grooves 801 correspond to the locking grooves 701 one by one, and a locking slider 802 is slidably connected in the horizontal slide groove 801, and the locking slider 802 extends out of the horizontal slide groove 801 at one end away from the horizontal slide groove 801 and is fixedly installed with a locking rod 803, and the locking rod 803 passes through the correspondingly arranged locking groove 701, and a locking tooth 804 with a triangular structure is fixedly installed at one end of the locking rod 803 away from the locking slider 802, and the installation directions of the two locking teeth 804 are opposite, and the inner walls of the two impact slide grooves 401 are fixedly installed with brackets. Unlocking rod 402, the lower surface of unlocking rod 402 is an arc-shaped structure, unlocking rod 402 corresponds to locking tooth 804 one by one, and the active slider 7 is driven to move by cylinder 5, so that the active slider 7 drives the driven slider 8 to move. When the telescopic end of cylinder 5 moves to the shortest distance, the unlocking rod 402 contacts the inclined surface of locking tooth 804, so that the two locking rods 803 respectively drive the two locking sliders 802 to move in opposite directions, thereby making the locking tooth 804 disengage from the active slider 7 and making the unlocking rod 402 disengage from the locking groove 701. At this time, the impact unit 6 hits the steel pipe under the action of gravity, which can achieve different detection effects. A No. 2 spring is arranged in the horizontal slide groove 801 to reset the locking slider 802.

[0029] Two symmetrically arranged through holes 702 are provided on the upper surface of the active slider 7, and two symmetrically arranged extrusion rods 805 are fixedly installed on the upper surface of the driven slider 8. The extrusion rods 805 correspond to the through holes 702 one by one and penetrate the corresponding through holes 702. Extrusion sliders 403 are slidably connected in the two impact grooves 401. The two extrusion sliders 403 respectively contact the two extrusion rods 805. A No. 3 spring is arranged in the impact groove 401. When the unlocking rod 402 disengages from the locking groove 701, the No. 3 spring causes the extrusion slider 403 to drive the extrusion rod 805 to move, and further causes the extrusion rod 805 to drive the impact unit 6 to hit the steel pipe at high speed. Cooperating with the impact blade 9, it plays a role in further increasing the detection method of the toughness of the steel pipe and avoiding the singleness of the detection.

[0030] A clamping groove 806 is provided in the driven slider 8, and the two sides of the clamping groove 806 respectively penetrate the surfaces of the two sides of the driven slider 8, and two symmetrical C-shaped clamping sliders 807 are provided between the two fixed rods 4, and the two clamping sliders 807 are slidably connected with the clamping groove 806. The clamping groove 806 is extended from both ends of the clamping slider 807 and a lower pressing block 10 is fixedly installed. An extrusion groove 404 is provided on the side where the two fixed rods 4 are close to each other, and the extrusion groove 404 corresponds to the lower pressing block 10 one by one. 4 is inserted with a shift block 11. When the driven slider 8 is separated from the active slider 7, the cylinder 5 drives the active slider 7 to be pressed down and makes the inclined surface of the locking tooth 804 contact the inner wall of the locking groove 701, so that the locking tooth 804 locks the active slider 7 and the driven slider 8. The pressing block 10 contacts the inclined surface of the shift block 11, so that the relative pressing blocks 10 are close to and contact each other, which is used to increase the contact area between the pressing block 10 and the outer wall of the steel pipe. The cylinder 5 indirectly drives the pressing block 10 to be slowly pressed down, so as to detect the effective supporting force of the steel pipe.

[0031] A spring groove 808 is provided on the side where the two clamping sliders 807 are close to each other, and the opening directions of the two spring grooves 808 are opposite. A No. 1 spring telescopic rod 12 is fixedly installed in the two spring grooves 808. The telescopic ends of the two No. 1 spring telescopic rods 12 are in contact with each other. The No. 1 spring telescopic rod 12 is used to reset the two pairs of lower pressing blocks 10.

[0032] A fixed vertical sleeve 13 is fixedly installed on the base 1, and a vertical rod 14 is inserted in the vertical sleeve 13. An arc-shaped interference block 15 is fixedly installed on the side of the vertical rod 14 away from the vertical sleeve 13, and the interference block 15 interferes with the steel pipe. The two rotating blocks 302 are hinged with an adjustable telescopic rod 16 on the side close to each other. The telescopic ends of the two adjustable telescopic rods 16 are hinged on the vertical rod 14, and flexible straps are fixedly installed on both ends of the interference block 15 for fixing the steel pipe and the interference block 15. When the steel pipe is bent during the detection process, the vertical rod 14 is driven downward by the interference block 15 and enters the vertical sleeve 13 to maintain the vertical movement state of the vertical rod 14, so that the two adjustable telescopic rods 16 are extended and drive the corresponding rotating blocks 302 to rotate at the same angle, which can ensure that the supporting force at both ends of the steel pipe is the same, and avoid uneven force at both ends of the steel pipe causing detection errors.

[0033] A fixed block 17 of an L-shaped structure is fixedly installed on the side of the two rotating blocks 302 that are away from each other. A No. 2 spring telescopic rod 18 is fixedly installed on the two fixed blocks 17. A balancing block 19 is fixedly installed on the telescopic ends of the two No. 2 spring telescopic rods 18. The balancing block 19 contacts the steel pipe. When the steel pipe is bent, the two ends of the steel pipe will slide to a certain extent. The balancing block 19 is pushed by the No. 2 spring telescopic rod 18, and then the balancing block 19 pushes the two ends of the steel pipe, which can play a role in balancing the steel pipe.

[0034] The bottom of the lower pressing block 10 is rotatably connected to a roller 20 , and the roller 20 is used to reduce the friction between the lower pressing block 10 and the shifting block 11 .

[0035] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel toughness detection device, comprising a base (1), characterized in that: The base (1) is fixedly provided with two symmetrically arranged positioning blocks (2) via a bracket, the upper surfaces of the two positioning blocks (2) are provided with downward pressing grooves (201), the two ends of the downward pressing grooves (201) respectively penetrate the surfaces of the two sides of the positioning blocks (2), and a support unit (3) is provided in the downward pressing grooves (201); The support unit (3) is composed of a support slider (301) and a rotating block (302). The upper surface and the lower surface of the rotating block (302) are both in an arc-shaped structure. The support slider (301) is slidably connected to the downward pressing slide groove (201). A rotating groove (303) is provided on the upper surface of the support slider (301). The two ends of the rotating groove (303) respectively penetrate the surfaces on both sides of the support slider (301). The rotating block (302) is hinged on the inner wall of the rotating groove (303). A steel pipe is provided on the top of the rotating block (302). Two symmetrically arranged fixed rods (4) are fixedly installed on the base (1). A cylinder (5) is fixedly installed between the two fixed rods (4) via a bracket. An impact slide groove (401) is provided on the side of the two fixed rods (4) close to each other. An impact unit (6) is provided between the two fixed rods (4). The impact unit (6) is composed of an active slider (7), a driven slider (8) and an impact blade (9); the active slider (7) and the driven slider (8) are arranged between two fixed rods (4); both ends of the active slider (7) and the driven slider (8) are slidably connected to the impact slide groove (401); the active slider (7) is fixedly mounted on the telescopic end of the cylinder (5); and the impact blade (9) is fixedly mounted on the bottom of the driven slider (8); The upper surface of the active slider (7) is provided with two symmetrically arranged locking grooves (701), and the upper surface of the driven slider (8) is provided with two symmetrically arranged horizontal slide grooves (801), the horizontal slide grooves (801) correspond one to one with the locking grooves (701), a locking slider (802) is slidably connected in the horizontal slide groove (801), one end of the locking slider (802) away from the horizontal slide groove (801) extends out of the horizontal slide groove (801) and is fixedly installed with a locking rod (803), the locking rod (803) passes through the correspondingly arranged locking groove (701), and one end of the locking rod (803) away from the locking slider (802) is fixedly installed with a locking tooth (804) of a triangular structure, and the installation directions of the two locking teeth (804) are opposite, and unlocking rods (402) are fixedly installed on the inner walls of the two impact slide grooves (401) through brackets, the lower surface of the unlocking rod (402) is an arc-shaped structure, and the unlocking rod (402) corresponds one to one with the locking tooth (804); The upper surface of the active slider (7) is provided with two symmetrically arranged through holes (702); the upper surface of the driven slider (8) is fixedly provided with two symmetrically arranged extrusion rods (805); the extrusion rods (805) correspond to the through holes (702) one by one and penetrate the corresponding through holes (702); the two impact slide grooves (401) are both slidably connected with extrusion sliders (403); the two extrusion sliders (403) are respectively in contact with the two extrusion rods (805).

2. A steel toughness detection device according to claim 1, characterized in that: The driven slider (8) is provided with a clamping groove (806), and the two sides of the clamping groove (806) respectively penetrate the surfaces of the two sides of the driven slider (8). Two clamping sliders (807) with a C-shaped structure that are symmetrical to each other are provided between the two fixed rods (4). The two clamping sliders (807) are both slidably connected to the clamping groove (806). The clamping grooves (806) are extended from both ends of the clamping slider (807) and are fixedly installed with a lower pressing block (10). An extrusion groove (404) is provided on the side where the two fixed rods (4) are close to each other. The extrusion grooves (404) correspond to the lower pressing block (10) one by one, and a displacement block (11) is inserted into the extrusion groove (404).

3. A steel toughness detection device according to claim 2, characterized in that: A spring groove (808) is provided on one side of the two clamping slide blocks (807) close to each other. The two spring grooves (808) are opened in opposite directions. A No. 1 spring telescopic rod (12) is fixedly installed in the two spring grooves (808). The telescopic ends of the two No. 1 spring telescopic rods (12) contact each other.

4. A steel toughness detection device according to claim 1, characterized in that: A fixed vertical sleeve (13) is fixedly mounted on the base (1), a vertical rod (14) is inserted into the vertical sleeve (13), a side of the vertical rod (14) away from the vertical sleeve (13) is fixedly mounted with an arc-shaped abutment block (15), the abutment block (15) abuts against the steel pipe, and the sides of the two rotating blocks (302) close to each other are both hinged with adjustable telescopic rods (16), and the telescopic ends of the two adjustable telescopic rods (16) are both hinged on the vertical rod (14).

5. A steel toughness detection device according to claim 1, characterized in that: A fixed block (17) of an L-shaped structure is fixedly mounted on one side of the two rotating blocks (302) away from each other, a No. 2 spring telescopic rod (18) is fixedly mounted on the two fixed blocks (17), and a balancing block (19) is fixedly mounted on the telescopic ends of the two No. 2 spring telescopic rods (18), and the balancing block (19) contacts the steel pipe.

6. A steel toughness detection device according to claim 2, characterized in that: The bottom of the lower pressing block (10) is rotatably connected to a roller (20).

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