Pipe impact testing fixture

Abstract

The utility model relates to a kind of pipe impact test tool, including base, the top plate of base is fixedly connected with rack, the just below of rack is provided with impact seat, the top of impact seat is opened with placing groove, the bottom of base is horizontally fixedly connected with translation mechanism, the movable platform of translation mechanism is fixedly connected with mounting seat, the bottom of mounting seat is vertically fixedly connected with jacking mechanism, the lifting platform of jacking mechanism is fixedly connected with rotating mechanism, the rotating platform of rotating mechanism is horizontally fixedly connected with mounting plate, the top of mounting plate is fixedly connected with motor, the sidewall top of mounting plate is fixedly connected with fixed plate.The utility model has the beneficial effects that by being provided with translation mechanism, jacking mechanism, rotating mechanism and expansion mechanism, operator can be kept away from drop hammer in the process of pipe disassembly and assembly, avoid operator to be impacted hammer bruise, improve the security of test tool.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe testing equipment, specifically to a pipe impact testing fixture. Background Technology

[0002] Impact testing of pipes is an important means of assessing their resistance to damage when subjected to instantaneous external force, and it is widely used in the quality control of pipes made of plastics, metals, and other materials. The main testing methods include the through-feed method (Method A) and the gradient method (Method B). The through-feed method uses a fixed-mass drop hammer to impact the specimen from a specified height, and is generally used for routine quality control. The gradient method adjusts the impact height or the mass of the drop hammer to gradually approach the 50% failure point of the specimen, obtaining more accurate impact energy data. During the impact test, the specimen is placed horizontally on the fixture, ensuring a secure clamping and that the centerline coincides with the centerline of the drop hammer to avoid secondary impacts affecting the results.

[0003] However, the above methods all require manual disassembly and assembly of the pipes during testing. At this time, the operator is usually below the falling hammer. If the falling hammer malfunctions and falls off, it can easily injure the operator, posing a safety risk. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing pipe impact testing fixtures are prone to injuring operators and pose safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pipe impact testing fixture includes a base, a frame fixedly connected to the top plate of the base, an impact seat located directly below the frame, a placement groove with a "V" shape on the top of the impact seat, a translation mechanism fixedly connected to the bottom of the base, a mounting base fixedly connected to the movable platform of the translation mechanism, a lifting mechanism fixedly connected to the bottom of the mounting base, a rotating mechanism fixedly connected to the lifting platform of the lifting mechanism, a mounting plate fixedly connected to the rotating platform of the rotating mechanism, a motor fixedly connected to the top of the mounting plate, a fixing plate fixedly connected to the top of the side wall of the mounting plate, the motor shaft perpendicular to the fixing plate, and an expansion mechanism located on the side of the fixing plate away from the motor.

[0007] Furthermore, a lifting mechanism is vertically fixedly connected to the top of the frame, the piston rod of the lifting mechanism extends to the lower side of the top of the frame, and an electromagnet is fixedly connected to the piston rod of the lifting mechanism.

[0008] Furthermore, a pair of sliding rods are vertically and symmetrically arranged on both sides of the bottom of the frame. A movable plate is horizontally slidably connected between the pair of sliding rods. An impact rod is vertically fixedly connected to the middle of the movable plate. A magnetic block is fixedly connected to the top of the impact rod. The magnetic block is located directly below the electromagnet. An impact hammer is fixedly connected to the bottom of the impact rod. The impact hammer is located directly above the placement slot.

[0009] Furthermore, the expansion mechanism includes a slide rail, which is fixedly connected to the side wall of the fixed plate away from the motor. A lead screw is rotatably connected to the center of the side wall of the fixed plate away from the motor. The lead screw is fixedly connected to the rotating shaft of the motor. A movable seat is threaded onto the lead screw. A pair of top plates are symmetrically slidably connected to the side of the slide rail away from the motor. A connecting seat is fixedly connected to the side wall of the top plate facing the lead screw. A pair of connecting rods are symmetrically hinged between the two sides of the movable seat and the pair of connecting seats.

[0010] Furthermore, the top plate is arc-shaped, and a limit plate is fixedly connected to the side wall of the impact seat away from the mounting seat.

[0011] Furthermore, the bottom of the frame is surrounded by several baffles, and the baffles have a feed port on the side wall facing the mounting base.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The pipe impact testing fixture of this utility model, by being equipped with a translation mechanism, a lifting mechanism, a rotating mechanism and an expansion mechanism, can keep the operator away from the falling hammer during the pipe assembly and disassembly process, avoid the operator being injured by the impact hammer, and improve the safety of the testing fixture.

[0014] 2. The pipe impact testing fixture of this utility model, by setting up symmetrically arranged top plates and connecting rods, can clamp and fix pipes of different diameters, and keep the pipes in a centered state at all times, so as to avoid them from deviating during the test and affecting the test results. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a pipe impact testing fixture according to the present invention;

[0016] Figure 2 This is a schematic diagram of the translation mechanism of a pipe impact testing fixture according to the present invention;

[0017] Figure 3 This is a schematic diagram of the expansion mechanism of a pipe impact testing fixture according to the present invention;

[0018] Figure 4 This is a top view schematic diagram of the impact testing fixture for pipes according to this utility model;

[0019] Figure 5 This is an enlarged schematic diagram of section A of the pipe impact testing fixture of this utility model.

[0020] Reference numerals: 1. Base; 2. Frame; 3. Impact seat; 4. Placement slot; 5. Lifting mechanism; 6. Slide rod; 7. Electromagnet; 8. Movable plate; 9. Impact rod; 10. Magnetic block; 11. Impact hammer; 12. Limiting plate; 13. Translation mechanism; 14. Mounting seat; 15. Lifting mechanism; 16. Rotating mechanism; 17. Mounting plate; 18. Motor; 19. Fixing plate; 20. Expansion mechanism; 2001. Slide rail; 2002. Lead screw; 2003. Movable seat; 2004. Top plate; 2005. Connecting seat; 2006. Connecting rod; 21. Baffle; 22. Feed inlet. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0022] refer to Figure 1The pipe impact testing fixture of this embodiment includes a base 1, a frame 2 fixedly connected to the top plate of the base 1, an impact seat 3 disposed directly below the frame 2, a placement groove 4 provided on the top of the impact seat 3 for placing the pipe during testing, the placement groove 4 being "V" shaped, a translation mechanism 13 fixedly connected to the bottom of the base 1 for adjusting the horizontal position of the pipe, a mounting base 14 fixedly connected to the movable platform of the translation mechanism 13, a lifting mechanism 15 fixedly connected to the bottom of the mounting base 14 for adjusting the height of the pipe, and a rotating mechanism 16 fixedly connected to the lifting platform of the lifting mechanism 15. The rotating platform of the rotating mechanism 16 is horizontally fixedly connected to the mounting plate 17. The top of the mounting plate 17 is fixedly connected to the motor 18. The top of the side wall of the mounting plate 17 is fixedly connected to the fixing plate 19. The rotating shaft of the motor 18 is perpendicular to the fixing plate 19. The expansion mechanism 20 is provided on the side of the fixing plate 19 away from the motor 18 for clamping and fixing the pipe. The side wall of the impact seat 3 away from the mounting seat 14 is fixedly connected to the limit plate 12. Several baffles 21 are provided around the bottom of the frame 2. The side wall of the baffles 21 facing the mounting seat 14 has a feed port 22. Before testing, the translation mechanism 13 drives the mounting base 14 and the lifting mechanism 15 to move away from the impact seat 3, causing the rotation mechanism 16 and the mounting plate 17 of the top plate of the lifting mechanism 15 to move accordingly, until the expansion mechanism 20 moves to the outside of the feed inlet 22. At this time, the rotation mechanism 16 drives the top mounting plate 17 to start rotating. When the mounting plate 17 rotates, it drives the motor 18 and the expansion mechanism 20 on its top to rotate accordingly, until the expansion mechanism 20 stops when it rotates 90°. At this time, the pipe to be tested is clamped and fixed by the expansion mechanism 20. Then, the rotation mechanism 16 drives the expansion mechanism 20 to reset, so that the pipe faces the feed inlet 22. At this time, the translation mechanism 13 resets, driving the pipe... The pipe moves towards the feed inlet 22. When the pipe moves to the inside of the feed inlet 22 and abuts against the side wall of the limiting plate 12, the expansion mechanism 20 releases the pipe. The lifting mechanism 15 drives the top rotating mechanism 16 and the expansion mechanism 20 to move downward, causing the pipe to move downward until the bottom of the pipe abuts against the placement groove 4 on the top of the impact seat 3. At this time, the pipe stops moving. The expansion mechanism 20 continues to move downward until the expansion mechanism 20 disengages from the pipe. The lifting mechanism 15 stops moving, and the translation mechanism 13 drives the expansion mechanism 20 to move to the outside of the feed inlet 22 again, thereby realizing automatic feeding of the pipe and avoiding the operator being at the bottom of the impact hammer 11, reducing the risk of injury to the operator.

[0023] A lifting mechanism 5 is vertically fixed to the top of the frame 2. The piston rod of the lifting mechanism 5 extends to the lower side of the top of the frame 2. An electromagnet 7 is fixedly connected to the piston rod of the lifting mechanism 5. A pair of sliding rods 6 are vertically symmetrically arranged on both sides of the bottom of the frame 2. A movable plate 8 is horizontally slidably connected between the pair of sliding rods 6. An impact rod 9 is vertically fixed to the middle of the movable plate 8. A magnetic block 10 is fixedly connected to the top of the impact rod 9. The magnetic block 10 is located directly below the electromagnet 7. An impact hammer 11 is fixedly connected to the bottom of the impact rod 9. The impact hammer 11 is located directly above the placement slot 4. During testing, the electromagnet 7 is energized to generate magnetic force, which drives the lifting mechanism 5 to move the electromagnet 7 downward, attracting the magnetic block 10. Then, the lifting mechanism 5 drives the electromagnet 7 and the magnetic block 10 upward, causing the movable plate 8 and the impact hammer 11 to move upward as well, until the impact hammer 11 stops when it reaches the height to be tested. At this point, the electromagnet 7 is de-energized, and the impact hammer 11 moves downward under the action of gravity, impacting the pipe at the bottom, thus realizing the impact test on the pipe.

[0024] The expansion mechanism 20 includes a slide rail 2001, which is fixedly connected to the side wall of the fixed plate 19 away from the motor 18. A lead screw 2002 is rotatably connected to the center of the side wall of the fixed plate 19 away from the motor 18. The lead screw 2002 is fixedly connected to the rotating shaft of the motor 18. A movable seat 2003 is threadedly connected to the lead screw 2002. A pair of top plates 2004 are symmetrically slidably connected to the side of the slide rail 2001 away from the motor 18. A connecting seat 2005 is fixedly connected to the side wall of the top plate 2004 facing the lead screw 2002. A pair of connecting rods 2006 are symmetrically hinged between the two sides of the movable seat 2003 and the pair of connecting seats 2005. The top plate 2004 is arc-shaped. When installing the pipe, the pipe is fitted onto the outside of a pair of top plates 2004. The motor 18 is started, causing the lead screw 2002 to start rotating. When the lead screw 2002 rotates, it drives the movable seat 2003 to move towards the slide rail 2001, causing the connecting rods 2006 hinged on both sides to rotate away from the lead screw 2002. When the connecting rods 2006 rotate, they drive the movable seat 2003 hinged at the other end to move towards the outer end of the slide rail 2001, causing the pair of top plates 2004 to move towards each other at both ends of the slide rail 2001, thereby fixing the pipe on the outside of the top plate 2004 and keeping the pipe in a centered position.

[0025] Working principle: Before testing, the electromagnet 7 is energized to generate magnetic force. The lifting mechanism 5 drives the electromagnet 7 downwards, attracting the magnetic block 10. Then, the lifting mechanism 5 drives the electromagnet 7 and the magnetic block 10 upwards, causing the movable plate 8 and the impact hammer 11 to move upwards as well, until the impact hammer 11 reaches the test height and stops. Then, the translation mechanism 13 drives the mounting base 14 and the lifting mechanism 15 to move away from the impact base 3, causing the rotation mechanism 16 and the expansion mechanism 20 of the top plate of the lifting mechanism 15 to move accordingly, until the expansion mechanism 20 moves outside the feed inlet 22. At this point, the rotation mechanism 16 drives the top mounting plate 8... 7. Start rotating. When the mounting plate 17 rotates, it drives the motor 18 and the expansion mechanism 20 on its top to rotate accordingly, until the expansion mechanism 20 rotates 90° and stops. At this time, the pipe to be tested is clamped and fixed by the expansion mechanism 20. When installing the pipe, the pipe is sleeved on the outside of the pair of top plates 2004, so that the end of the pipe abuts against the connection between the top plate 2004 and the slide rail 2001. Start the motor 18, so that the lead screw 2002 starts to rotate. When the lead screw 2002 rotates, it drives the movable seat 2003 to move towards the slide rail 2001, so that the connecting rods 2006 hinged on both sides rotate away from the lead screw 2002. When rotated, the movable seat 2003, which is hinged at the other end, moves towards the outer end of the slide rail 2001, causing a pair of top plates 2004 to move towards the two ends of the slide rail 2001, thereby fixing the pipe on the outside of the top plate 2004 and keeping the pipe in a centered position. Then, the rotation mechanism 16 drives the expansion mechanism 20 to reset, so that the pipe faces the feed inlet 22. At this time, the translation mechanism 13 resets, driving the pipe to move towards the feed inlet 22. When the pipe moves to the inner side of the feed inlet 22 and abuts against the side wall of the limiting plate 12, the expansion mechanism 20 resets, releasing the pipe. The lifting mechanism 15 drives the top rotation mechanism 16 and the expansion mechanism 20 to reset. Mechanism 20 moves downward, causing the pipe to move downward as well, until the bottom of the pipe abuts against the placement groove 4 at the top of the impact seat 3. At this point, the pipe stops moving, and expansion mechanism 20 continues to move downward until expansion mechanism 20 detaches from the pipe. Lifting mechanism 15 stops moving, and translation mechanism 13 drives expansion mechanism 20 to move outward again towards the feed port 22, realizing automatic feeding of the pipe. After the pipe is fed, the electromagnet 7 is de-energized. At this time, impact hammer 11 moves downward under the action of gravity, impacting the pipe to be tested at the bottom, and performing an impact test on the pipe. If the surface of the pipe is damaged or cracked, the pipe is judged to be unqualified; otherwise, it is qualified.

[0026] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A pipe impact test fixture, characterized by: Includes a base (1), the top plate of which is fixedly connected to a frame (2), an impact seat (3) is provided directly below the frame (2), the top of the impact seat (3) is provided with a placement groove (4), the placement groove (4) is arranged in a "V" shape, the bottom of the base (1) is horizontally fixedly connected to a translation mechanism (13), the movable platform of the translation mechanism (13) is fixedly connected to a mounting base (14), and the bottom of the mounting base (14) is vertically fixedly connected to a lifting mechanism (15). The lifting mechanism (15) has a lifting platform fixedly connected to a rotating mechanism (16), the rotating platform of the rotating mechanism (16) is horizontally fixedly connected to a mounting plate (17), the top of the mounting plate (17) is fixedly connected to a motor (18), the top of the side wall of the mounting plate (17) is fixedly connected to a fixing plate (19), the rotating shaft of the motor (18) is perpendicular to the fixing plate (19), and an expansion mechanism (20) is provided on the side of the fixing plate (19) away from the motor (18).

2. A pipe impact testing tool according to claim 1, wherein: A lifting mechanism (5) is vertically fixedly connected to the top of the frame (2). The piston rod of the lifting mechanism (5) extends to the lower side of the top of the frame (2). An electromagnet (7) is fixedly connected to the piston rod of the lifting mechanism (5).

3. A pipe impact testing tool according to claim 2, wherein: A pair of sliding rods (6) are vertically and symmetrically arranged on both sides of the bottom of the frame (2). A movable plate (8) is horizontally slidably connected between the pair of sliding rods (6). An impact rod (9) is vertically fixedly connected to the middle of the movable plate (8). A magnetic block (10) is fixedly connected to the top of the impact rod (9). The magnetic block (10) is located directly below the electromagnet (7). An impact hammer (11) is fixedly connected to the bottom of the impact rod (9). The impact hammer (11) is located directly above the placement slot (4).

4. A pipe impact testing tool according to claim 1, wherein: The expansion mechanism (20) includes a slide rail (2001), which is fixedly connected to the side wall of the fixed plate (19) away from the motor (18). A lead screw (2002) is rotatably connected to the center of the side wall of the fixed plate (19) away from the motor (18). The lead screw (2002) is fixedly connected to the rotating shaft of the motor (18). A movable seat (2003) is threaded onto the lead screw (2002). A pair of top plates (2004) are symmetrically slidably connected to the side of the slide rail (2001) away from the motor (18). A connecting seat (2005) is fixedly connected to the side wall of the top plate (2004) facing the lead screw (2002). A pair of connecting rods (2006) are symmetrically hinged between the two sides of the movable seat (2003) and the pair of connecting seats (2005).

5. A pipe impact testing tool according to claim 4, wherein: The top plate (2004) is arc-shaped, and the impact seat (3) is fixedly connected to the side wall away from the mounting seat (14) by a limiting plate (12).

6. A pipe impact testing tool according to claim 1, wherein: The bottom of the frame (2) is surrounded by several baffles (21), and the baffles (21) have a feed port (22) on one side wall facing the mounting base (14).

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