A welding fixture for multi-angle weld joint destruction experiment of metal material

Abstract

The application discloses a welding clamp for metal material multi-angle weld joint destruction experiment, and relates to the technical field of welding clamps.The welding clamp for metal material multi-angle weld joint destruction experiment comprises a clamp group arranged on a bottom plate, the clamp group comprises a fixed plate and a movable plate, a circular hole is formed in the side wall of the movable plate, a rotating disc is rotationally connected in the circular hole, clamping mechanisms are arranged on the side wall of the rotating disc and the fixed plate, a moving module is arranged on the top of the bottom plate, and a moving block is connected to the moving module.The welding clamp for metal material multi-angle weld joint destruction experiment can adapt to the shape and thickness difference of the welding test piece when the welding test piece is overlapped and welded, so that the inclination and bending deformation of the welding test piece are avoided, the accuracy of experimental results is ensured, multi-angle experiments, tensile and torsional experiments are facilitated, and the efficiency of the experiment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding fixtures, in particular to a welding fixture for multi-angle welding seam damage experiment of metal materials. BACKGROUND

[0002] At present, welding has been more and more widely used in mechanical manufacturing represented by automobile manufacturing. Compared with riveting, casting and other processes, welding can manufacture parts with lighter weight and lower energy consumption, and when welding is used in combination with forging and casting, large cast-welded or forged-welded parts can be manufactured, which can bring better economic benefits to enterprises while ensuring strength. Usually, before welding formal products, small workpieces of the same material and the same joint form are welded first, which is called "test piece", the purpose of which is to experiment the welding specification and test the welding result, which is used to ensure the welding reliability of the formal product to ensure the welding quality of the product, and to do the tensile and torsional test. The function of the welding test piece is to detect the feasibility and reliability of the welding process to ensure the welding quality of the product.

[0003] Publication No. CN104330303B discloses a kind of welding test piece tearing fixture, including support seat, workbench on the support seat and detection rod, the support seat includes base and support frame on the base, workbench includes a work plate, the lower end surface of work plate is connected with the support frame, the upper end surface is equipped with a detection part, detection part includes the limiting part of opening downward and the force part on the limiting part, limiting part includes top wall and two side walls, the lower end of two side walls is fixed on the work plate, a threaded hole is formed in the top wall, the force part includes a outer thread hole matched with the threaded hole, further including the holding part fixed to the upper end of outer thread column, the holding part includes the fixed cap fixed to the upper end of outer thread column, two opposite perforations formed in the peripheral wall of fixed cap and the holding rod threaded into the two opposite perforations;Detection rod is equipped with a embedding slot for embedding welding test piece in one end along the axial direction.

[0004] However, the existing welding fixture for welding seam damage experiment of metal materials is inconvenient for multi-angle experiment when welding test piece is welded in the form of lap welding, such as electric welding, seam welding and laser lap welding. Due to the existence of overlapping, the two clamping heads of the conventional fixture are in the same straight line, but due to the existence of overlapping, the welding test piece will be inclined and deformed after clamping and fixing, which affects the accuracy of the experimental results; It is not convenient to do multi-angle experiment, and when doing tensile and torsional test, the fixture needs to be replaced, which is not convenient and fast, affecting the efficiency of the experiment. SUMMARY

[0005] The welding clamp for the multi-angle weld joint destruction experiment of the metal material is provided to solve the problems in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a welding clamp for a multi-angle weld joint destruction experiment of a metal material, comprising a clamp group arranged on a bottom plate, the clamp group comprising a fixed plate and a moving plate, and a side wall of the moving plate is provided with a circular hole, a rotating disc is rotatably connected in the circular hole, and the rotating disc and the side wall of the fixed plate are provided with clamping mechanisms, a moving module is arranged on the top of the bottom plate, and a moving block is connected to the moving module, a tension sensor is fixedly connected between the moving block and the moving plate, and a lifting block is connected to the top of the bottom plate through a lifting module, a L-shaped plate is fixedly connected to the side wall of the lifting block, and a lifting plate is connected to the bottom of the L-shaped plate through a telescopic mechanism, a first motor is fixedly connected to the bottom of the lifting plate, and a disc is fixedly connected to the output end of the first motor, a scale mark is arranged on the top of the disc, and a pointer is arranged on the top of the lifting plate, a first electromagnet is embedded in the top of the disc, and a centering mechanism is arranged on the side wall of the disc, and the rotation of the rotating disc is driven by a driving mechanism.

[0007] The clamping mechanism comprises two fixed blocks, and a cylinder is fixedly connected to each fixed block, an installation plate is fixedly connected to the bottom of the cylinder, and a plurality of clamping blocks are connected to the installation plate through a plurality of telescopic assemblies.

[0008] Preferably, the telescopic assembly comprises a first sleeve rod fixedly connected to each clamping block, and a first sleeve is sleeved on the side wall of the first sleeve rod, the other end of the first sleeve is fixed to the installation plate, a first spring is fixedly connected between the first sleeve rod and the first sleeve, and a limiting mechanism is arranged between the first sleeve and the first sleeve rod.

[0009] Preferably, the limiting mechanism comprises a first limiting hole arranged in the side wall of the first sleeve, and a plurality of second limiting holes are arranged in an array on the side wall of the first sleeve rod, the side walls of the fixed plate and the rotating disc are connected with a moving frame through a first reset mechanism, the side wall of the moving frame is fixedly connected with an installation block, a limiting pin is fixedly connected to the side wall of the installation block, and the movement of the moving frame is pushed by a pushing mechanism.

[0010] Preferably, the first reset mechanism comprises a plurality of second sleeves fixedly connected to the side wall of the moving frame, and a second sleeve rod is inserted into each second sleeve, the other end of the second sleeve rod is fixed to the side walls of the fixed plate and the rotating disc, and a second spring is sleeved on the side wall of each second sleeve.

[0011] Preferably, the pushing mechanism comprises a moving rod inserted between the fixed plate and the lateral wall of the rotating disc, the top of the bottom plate is fixedly connected with two first supporting blocks, the top of the first supporting block is slidably connected with a sliding block, the lateral wall of the sliding block is provided with a sliding groove, the sliding groove comprises a vertical groove and an inclined groove connected in head-tail mode, the lateral wall of the lifting block is fixedly connected with a rectangular tube, two sliding rods are inserted in the rectangular tube, the lateral wall of each sliding rod is fixedly connected with a pushing rod, and the pushing rod is inserted in the sliding groove.

[0012] Preferably, the telescopic mechanism comprises two third sleeve rods fixedly connected to the bottom of the L-shaped plate, the lateral wall of the third sleeve rod is sleeved with a third sleeve tube, the upper end of the third sleeve tube is fixed to the bottom of the lifting plate, the lateral wall of each third sleeve tube is sleeved with a third spring, and the top of the bottom plate is fixedly connected with an L-shaped baffle.

[0013] Preferably, the centering mechanism comprises a plurality of second supporting blocks fixedly connected to the lateral wall of the disc, the lateral wall of each second supporting block is connected with a centering plate through a moving mechanism, the top of the centering plate is fixedly connected with an inclined plate, and the lateral wall of the centering plate and the inclined plate is provided with a ball.

[0014] Preferably, the moving mechanism comprises a second electromagnet fixedly connected to the top of the second supporting block, the lateral wall of the centering plate is fixedly connected with an iron block, and a second reset mechanism is arranged between the second supporting block and the centering plate.

[0015] Preferably, the second reset mechanism comprises two fourth sleeve rods fixedly connected to the lateral wall of the second supporting block, the lateral wall of the fourth sleeve rod is sleeved with a fourth sleeve tube, the other end of the fourth sleeve tube is fixed to the lateral wall of the centering plate, and the lateral wall of each fourth sleeve tube is sleeved with a fourth spring.

[0016] Preferably, the driving mechanism comprises a gear ring fixedly sleeved to the lateral wall of the rotating disc, the lateral wall of the moving plate is fixedly connected with a U-shaped plate, the lateral wall of the U-shaped plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a torque sensor, the other end of the torque sensor is fixedly connected with a gear, and the gear is meshed with the gear ring.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The welding fixture for multi-angle welding seam damage experiment of metal material, through the clamping mechanism and the like, when the experiment is needed, the welding test piece is placed on the disc, then the first electromagnet is energized to adsorb the welding test piece, then the cylinder is started to drive the adjacent two mounting plates to move close to each other, and the telescopic assembly drives the plurality of clamping blocks to move towards the welding test piece, when the clamping blocks abut against the welding test piece, the first spring is gradually compressed, so that the clamping blocks can adapt to the shape of the welding test piece, and the flat plate and the arc-shaped plate test piece can be clamped and fixed, then the L-shaped plate is driven downward by the lifting module, at this time, the third spring is gradually reset to keep the abutting state of the lifting plate and the top of the baffle, at the same time, when the lifting block moves downward, the push rod can be driven to slide downward along the inclined groove and gradually slide into the vertical groove through the rectangular tube and the sliding rod, so that the sliding block can be pushed to move towards the lifting block, when the sliding block moves, the moving rod can be synchronously moved, and the moving rod abuts against the side wall of the moving frame, so that the moving frame moves away from the fixed plate and the rotating disc, the second spring is stretched, when the moving frame moves, the limiting pin can be moved through the mounting block, and the limiting pin is inserted into the second limiting hole along the first limiting hole, at this time, the first sleeve and the first sleeve rod can be limited, when the lifting block continues to move downward, after the third spring is reset, the lifting plate can be driven to move downward, and the first electromagnet is de-energized to make the first electromagnet separate from the welding test piece, finally, the mounting plate is driven to continue to move downward by the cylinder, and the clamping blocks are driven to continue to move through the first sleeve and the first sleeve rod, so that the two sections of the welding test piece can be clamped and fixed, and the height of the two parts of the welding test piece can be adaptively adjusted and clamped, so that the inclination and bending deformation of the welding test piece caused by the two parts not being at the same height are avoided, and the accuracy of the experiment is ensured, then the moving block is moved by the moving module, and the moving plate is moved away from the fixed plate by the tension sensor, so that the welding test piece can be subjected to the tensile test, the second motor is started, the rotation of the second motor drives the gear to rotate through the torque sensor, so that the gear ring and the rotating disc are rotated, and the welding test piece is subjected to the torsion test, without replacing the fixture, the tensile and torsional tests of the welding test piece are facilitated, which is more convenient and efficient.

[0019] The welding fixture for multi-angle weld joint destruction experiment of metal material is characterized by the following: when the experiment is carried out, the welding test piece is first placed on the disc, then the second electromagnet is powered off, after the second electromagnet is powered off, the centering plate can be reset to move away from the second supporting block under the action of the fourth spring, when the welding test piece abuts against the side wall of the inclined plate, the welding test piece can be centered and adjusted, the setting of the ball can reduce the friction between the welding test piece and the centering plate and the inclined plate, then the first electromagnet is powered on to realize the adsorption and fixation of the welding test piece, then the first motor is started, the rotation of the first motor drives the rotation of the disc and the first electromagnet, and further drives the rotation of the welding test piece, and the angle of the welding test piece can be adjusted by observing the scale mark indicated by the observation pointer, so that the multi-angle weld joint destruction experiment of the welding test piece is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present application from another perspective;

[0022] Figure 3 It is a schematic diagram of the structure of the telescopic mechanism in the present application;

[0023] Figure 4 It is a schematic diagram of the structure of the clamping mechanism in the present application;

[0024] Figure 5 It is a schematic diagram of the structure of the centering mechanism in the present application;

[0025] Figure 6 It is a schematic diagram of the structure of the limiting mechanism in the present application;

[0026] Figure 7 It is Figure 2 an enlarged schematic diagram of position A in the present application;

[0027] Figure 8 It is Figure 4 an enlarged schematic diagram of position B in the present application.

[0028] In the figure: 1, bottom plate; 201, first sleeve; 202, first sleeve rod; 203, first spring; 301, first limiting hole; 302, second limiting hole; 303, moving frame; 304, mounting block; 305, limiting pin; 401, second sleeve rod; 402, second sleeve; 403, second spring; 501, moving rod; 502, first supporting block; 503, sliding block; 504, rectangular tube; 505, sliding rod; 506, pushing rod; 507, vertical groove; 508, inclined groove; 601, third sleeve rod; 602, third sleeve; 603, third spring; 604, baffle; 701, second supporting block; 702, centering plate; 703, inclined plate; 704, ball; 801, fourth sleeve rod; 802, fourth sleeve; 803, fourth spring; 901, second electromagnet; 902, iron block; 1001, gear ring; 1002, U-shaped plate; 1003, second motor; 1004, torque sensor; 1005, gear; 1101, fixed plate; 1102, moving plate; 1201, fixed block; 1202, air cylinder; 1203, mounting plate; 1204, clamping block; 13, lifting module; 14, lifting block; 15, L-shaped plate; 16, lifting plate; 17, first motor; 18, disc; 19, scale mark; 20, pointer; 21, first electromagnet; 22, moving module; 23, moving block; 24, circular hole; 25, rotating disc; 26, tension sensor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] Please refer to Figures 1-8The application provides a welding clamp for multi-angle welding seam damage experiment of metal materials, which comprises a clamp group arranged on a bottom plate 1, the clamp group comprises a fixed plate 1101 and a movable plate 1102, a side wall of the movable plate 1102 is provided with a circular hole 24, a rotating disc 25 is rotationally connected in the circular hole 24, the rotating disc 25 and the side wall of the fixed plate 1101 are provided with clamping mechanisms, a moving module 22 is arranged on the top of the bottom plate 1, a moving block 23 is connected to the moving module 22, a tension sensor 26 is fixedly connected between the moving block 23 and the movable plate 1102, a lifting block 14 is connected to the top of the bottom plate 1 through a lifting module 13, the lifting module 13 is a known technology in the technical field, and will not be repeated here, a L-shaped plate 15 is fixedly connected to the side wall of the lifting block 14, a lifting plate 16 is connected to the bottom of the L-shaped plate 15 through a telescopic mechanism, a first motor 17 is fixedly connected to the bottom of the lifting plate 16, a disc 18 is fixedly connected to the output end of the first motor 17, a scale mark 19 is arranged on the top of the disc 18, a pointer 20 is arranged on the top of the lifting plate 16, a first electromagnet 21 is embedded on the top of the disc 18, and a centering mechanism is arranged on the side wall of the disc 18, the rotation of the rotating disc 25 is driven through a driving mechanism.

[0031] The clamping mechanism comprises two fixed blocks 1201, a gas cylinder 1202 is fixedly connected to each fixed block 1201, an installation plate 1203 is fixedly connected to the bottom of the gas cylinder 1202, and a plurality of clamping blocks 1204 are connected to the installation plate 1203 through a plurality of telescopic assemblies, when the welding test piece is experimentally lap welded, the shape and thickness difference of the welding test piece can be self-adapted, so that the inclination and bending deformation of the welding test piece are avoided, and the accuracy of the experimental results is ensured; the multi-angle experiment, the tensile test and the torsional test are facilitated, which is more convenient and efficient, and the efficiency of the experiment is improved.

[0032] Please refer to Figure 8 The telescopic assembly comprises a first sleeve rod 202 fixedly connected to each clamping block 1204, a first sleeve pipe 201 is sleeved on the side wall of the first sleeve rod 202, the other end of the first sleeve pipe 201 is fixed to the installation plate 1203, a first spring 203 is fixedly connected between the first sleeve rod 202 and the first sleeve pipe 201, a limiting mechanism is arranged between the first sleeve pipe 201 and the first sleeve rod 202, the gas cylinder 1202 is started, the adjacent two installation plates 1203 are driven to move close to each other, and the plurality of clamping blocks 1204 are driven to move close to the welding test piece through the telescopic assembly, when the clamping blocks 1204 abut against the welding test piece, the first spring 203 is gradually compressed, so that the clamping blocks 1204 can self-adapt to the shape of the welding test piece, and the flat plate and the arc-shaped plate test piece can be clamped and fixed.

[0033] Please refer to Figure 6 and Figure 8The limiting mechanism comprises a first limiting hole 301 arranged in the side wall of the first sleeve 201, and a plurality of second limiting holes 302 arranged in the side wall of the first sleeve rod 202 in an array, the side wall of the fixing plate 1101 and the rotating disc 25 is connected with a moving frame 303 through a first reset mechanism, the side wall of the moving frame 303 is fixedly connected with a mounting block 304, the side wall of the mounting block 304 is fixedly connected with a limiting pin 305, the movement of the moving frame 303 is driven by a pushing mechanism, the moving frame 303 is moved away from the fixing plate 1101 and the rotating disc 25 by the pushing mechanism, when the moving frame 303 moves, the limiting pin 305 can be driven to move by the mounting block 304, and the limiting pin 305 is inserted into the second limiting hole 302 along the first limiting hole 301, at this time, the first sleeve 201 and the first sleeve rod 202 can be limited, the mounting plate 1203 is continuously moved downward by the cylinder 1202, and the clamping block 1204 is continuously moved by the first sleeve 201 and the first sleeve rod 202, so that the two sections of the welding test piece can be clamped and fixed, and the self-adaptive adjustment and clamping of the two sections of the welding test piece can be realized, so that the inclination and bending deformation of the welding test piece caused by the two sections not being at the same height can be avoided, and the accuracy of the experiment can be ensured.

[0034] Please refer to Figure 8 The first reset mechanism comprises a plurality of second sleeves 402 fixedly connected to the side wall of the moving frame 303, and a second sleeve rod 401 is inserted into the second sleeve 402, one end of the second sleeve rod 401 is fixedly connected to the side wall of the fixing plate 1101 and the rotating disc 25, and the side wall of each second sleeve 402 is sleeved with a second spring 403, so as to guide and reset the movement of the moving frame 303.

[0035] Please refer to Figure 2 , Figure 4 Figure 6 and Figure 7The pushing mechanism comprises a moving rod 501 inserted between the fixed plate 1101 and the side wall of the rotating disc 25, and the top of the bottom plate 1 is fixedly connected with two first supporting blocks 502, the top of each first supporting block 502 is slidably connected with a sliding block 503, the side wall of the sliding block 503 is provided with a sliding groove, the sliding groove comprises a vertical groove 507 and an inclined groove 508 connected end to end, the side wall of the lifting block 14 is fixedly connected with a rectangular tube 504, two sliding rods 505 are inserted into the rectangular tube 504, the side wall of each sliding rod 505 is fixedly connected with a pushing rod 506, and the pushing rod 506 is inserted into the sliding groove. The L-shaped plate 15 is driven to move downward by the lifting module 13, and under the action of the telescopic mechanism, the lifting plate 16 is kept in abutment with the top of the baffle 604. At the same time, when the lifting block 14 moves downward, the pushing rod 506 can be driven to slide downward along the inclined groove 508 and gradually slide into the vertical groove 507 through the rectangular tube 504 and the sliding rod 505, so that the sliding block 503 can be pushed to move towards the lifting block 14. When the sliding block 503 moves, the moving rod 501 can be synchronously moved, and the moving rod 501 can abut against the side wall of the moving frame 303, so that the moving frame 303 moves away from the fixed plate 1101 and the rotating disc 25.

[0036] Please refer to Figure 3 The telescopic mechanism comprises two third sleeve rods 601 fixedly connected to the bottom of the L-shaped plate 15, the side wall of the third sleeve rod 601 is sleeved with a third sleeve tube 602, the upper end of the third sleeve tube 602 is fixed to the bottom of the lifting plate 16, and the side wall of each third sleeve tube 602 is sleeved with a third spring 603. The top of the bottom plate 1 is fixedly connected with an L-shaped baffle 604. After the third spring 603 is reset, when the L-shaped plate 15 continues to move downward, the lifting plate 16 can be driven to move downward.

[0037] Please refer to Figure 3 and Figure 5 The centering mechanism comprises a plurality of second supporting blocks 701 fixedly connected to the side wall of the disc 18, the side wall of each second supporting block 701 is connected with a centering plate 702 through a moving mechanism, the top of the centering plate 702 is fixedly connected with an inclined plate 703, and the side wall of the centering plate 702 and the inclined plate 703 is provided with a ball 704. First, place the welding test piece on the disc 18, then drive the centering plate 702 to move away from the second supporting block 701 by the second reset mechanism, when the welding test piece abuts against the side wall of the inclined plate 703, the welding test piece can be centered and adjusted, and the ball 704 can reduce the friction between the welding test piece and the centering plate 702 and the inclined plate 703.

[0038] Please refer to Figure 5The moving mechanism comprises a second electromagnet 901 fixedly connected to the top of the second supporting block 701, and the side wall of the centering plate 702 is fixedly connected with an iron block 902, and a second reset mechanism is arranged between the second supporting block 701 and the centering plate 702, the second electromagnet 901 is electrified, the iron block 902 is attracted, and the centering plate 702 is moved towards the second supporting block 701.

[0039] Please refer to Figure 5 The second reset mechanism comprises two fourth sleeve rods 801 fixedly connected to the side wall of the second supporting block 701, the side wall of the fourth sleeve rod 801 is sleeved with a fourth sleeve tube 802, the other end of the fourth sleeve tube 802 is fixed to the side wall of the centering plate 702, and the side wall of each fourth sleeve tube 802 is sleeved with a fourth spring 803, which guides and resets the movement of the centering plate 702.

[0040] Please refer to Figure 1 The driving mechanism comprises a gear ring 1001 fixedly sleeved on the side wall of the rotating disc 25, the side wall of the moving plate 1102 is fixedly connected with a U-shaped plate 1002, the side wall of the U-shaped plate 1002 is fixedly connected with a second motor 1003, the output end of the second motor 1003 is fixedly connected with a torque sensor 1004, the other end of the torque sensor 1004 is fixedly connected with a gear 1005, and the gear 1005 is meshed with the gear ring 1001, the second motor 1003 is started, the rotation of the second motor 1003 drives the gear 1005 to rotate through the torque sensor 1004, so as to drive the gear ring 1001 and the rotating disc 25 to rotate, and further drive the welding test piece to perform a torsion test.

[0041] Working principle: when performing the experiment, first, place the welding test piece on the disc 18, then, disconnect the power supply of the second electromagnet 901, after the second electromagnet 901 is disconnected, the centering plate 702 can be reset to move away from the second supporting block 701 under the action of the fourth spring 803, when the welding test piece abuts against the side wall of the inclined plate 703, the welding test piece can be centered and adjusted, and the setting of the ball 704 can reduce the friction between the welding test piece and the centering plate 702 and the inclined plate 703, then, the first electromagnet 21 is electrified to realize the adsorption and fixation of the welding test piece, then, the first motor 17 is started, the rotation of the first motor 17 drives the rotation of the disc 18 and the first electromagnet 21, and further drives the rotation of the welding test piece, and the angle of the welding test piece can be adjusted by observing the scale mark 19 indicated by the pointer 20, so as to facilitate the multi-angle weld joint damage experiment of the welding test piece.

[0042] Then, the air cylinder 1202 is started, the two adjacent mounting plates 1203 are driven to move close to each other, and the plurality of clamping blocks 1204 are driven to move close to the welding test piece through the telescopic assembly. When the clamping blocks 1204 abut against the welding test piece, the first spring 203 is gradually compressed, so that the clamping blocks 1204 can adapt to the shape of the welding test piece, and the flat plate and the arc-shaped plate test piece can be clamped and fixed. Then, the L-shaped plate 15 is driven to move downward by the lifting module 13. At this time, the third spring 603 is gradually reset, and the lifting plate 16 and the top of the baffle 604 are kept in abutment.

[0043] At the same time, when the lifting block 14 moves downward, the push rod 506 can be driven to slide along the inclined groove 508 and gradually slide into the vertical groove 507 through the rectangular tube 504 and the sliding rod 505, so as to push the sliding block 503 to move close to the lifting block 14. When the sliding block 503 moves, the moving rod 501 is synchronously driven to move, and the moving rod 501 abuts against the side wall of the moving frame 303, so that the moving frame 303 moves away from the fixed plate 1101 and the rotating disc 25. The second spring 403 is stretched. When the moving frame 303 moves, the limiting pin 305 can be driven to move through the mounting block 304, and the limiting pin 305 is inserted into the second limiting hole 302 along the first limiting hole 301. At this time, the first sleeve 201 and the first sleeve rod 202 can be limited.

[0044] When the lifting block 14 continues to move downward, after the third spring 603 is reset, the lifting plate 16 can be driven to move downward, and the first electromagnet 21 is de-energized, so that the first electromagnet 21 is separated from the welding test piece. Finally, the mounting plate 1203 is driven to continue to move downward by the air cylinder 1202, and the clamping block 1204 is driven to continue to move by the first sleeve 201 and the first sleeve rod 202, so as to clamp and fix the two sections of the welding test piece. The height of the two parts of the welding test piece can be adaptively adjusted and clamped, so as to avoid that the two parts are not at the same height, causing the welding test piece to be inclined and deformed, and ensuring the accuracy of the experiment. Then, the moving block 23 is driven to move by the moving module 22, and the moving plate 1102 is driven to move away from the fixed plate 1101 by the tension sensor 26, so as to perform the tensile test on the welding test piece. The second motor 1003 is started, the rotation of the second motor 1003 drives the gear 1005 to rotate through the torque sensor 1004, so as to drive the gear ring 1001 and the rotating disc 25 to rotate, and further drive the welding test piece to perform the torsion test. Without replacing the clamp, the tensile and torsional tests on the welding test piece are facilitated, which is more convenient and efficient.

[0045] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0046] The above describes the present application and its embodiments, which is not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution, which should belong to the protection scope of the present application.

Claims

1. A welding fixture for multi-angle weld failure testing of metallic materials, comprising a fixture assembly mounted on a base plate (1), characterized in that: The clamping assembly includes a fixed plate (1101) and a movable plate (1102). The movable plate (1102) has a circular hole (24) on its side wall. A rotating disk (25) is rotatably connected inside the circular hole (24). Both the rotating disk (25) and the side wall of the fixed plate (1101) are provided with clamping mechanisms. A movable module (22) is provided on the top of the base plate (1). A movable block (23) is connected to the movable module (22). A tension sensor (26) is fixedly connected between the movable block (23) and the movable plate (1102). A lifting block (14) is connected to the top of the base plate (1) through a lifting module (13). The side wall of the lifting block (14) is fixedly connected to an L-shaped plate (15), and the bottom of the L-shaped plate (15) is connected to a lifting plate (16) through a telescopic mechanism. The bottom of the lifting plate (16) is fixedly connected to a first motor (17), and the output end of the first motor (17) is fixedly connected to a disc (18). The top of the disc (18) is provided with a scale mark (19), and the top of the lifting plate (16) is provided with a pointer (20). The top of the disc (18) is embedded with a first electromagnet (21), and the side wall of the disc (18) is provided with a centering mechanism. The rotation of the rotating disk (25) is driven by a driving mechanism. The clamping mechanism includes two fixing blocks (1201), and each fixing block (1201) is fixedly connected to a cylinder (1202). The bottom of the cylinder (1202) is fixedly connected to a mounting plate (1203), and multiple clamping blocks (1204) are connected to the mounting plate (1203) through multiple telescopic components. The telescopic assembly includes a first sleeve rod (202) fixedly connected to each clamping block (1204), and a first sleeve tube (201) is sleeved on the side wall of the first sleeve rod (202). The other end of the first sleeve tube (201) is fixed to the mounting plate (1203). A first spring (203) is fixedly connected between the first sleeve rod (202) and the first sleeve tube (201), and a limit mechanism is provided between the first sleeve tube (201) and the first sleeve rod (202). The limiting mechanism includes a first limiting hole (301) opened on the side wall of the first sleeve (201), and a plurality of second limiting holes (302) arranged in an array are opened on the side wall of the first sleeve (202). The side walls of the fixed plate (1101) and the rotating disk (25) are connected to a moving frame (303) through a first reset mechanism. The side wall of the moving frame (303) is fixedly connected to a mounting block (304). The side wall of the mounting block (304) is fixedly connected to a limiting pin (305). The movement of the moving frame (303) is pushed by a pushing mechanism. The pushing mechanism includes a moving rod (501) inserted into the side wall of the fixed plate (1101) and the rotating disk (25), and two first support blocks (502) are fixedly connected to the top of the base plate (1). A slider (503) is slidably connected to the top of the first support block (502), and a sliding groove is provided on the side wall of the slider (503). The sliding groove includes a vertical groove (507) and an inclined groove (508) connected end to end. A rectangular tube (504) is fixedly connected to the side wall of the lifting block (14), and two sliding rods (505) are inserted in the rectangular tube (504). A push rod (506) is fixedly connected to the side wall of each sliding rod (505), and the push rod (506) is inserted in the sliding groove.

2. The welding fixture for multi-angle weld failure testing of metallic materials according to claim 1, characterized in that: The first reset mechanism includes a plurality of second sleeves (402) fixedly connected to the side wall of the movable frame (303), and a second sleeve rod (401) is inserted inside the second sleeve (402). The other end of the second sleeve rod (401) is fixed to the side wall of the fixed plate (1101) and the rotating disk (25), and a second spring (403) is sleeved on the side wall of each second sleeve (402).

3. A welding fixture for multi-angle weld failure testing of metallic materials according to claim 1, characterized in that: The telescopic mechanism includes two third sleeve rods (601) fixedly connected to the bottom of the L-shaped plate (15), and the side wall of the third sleeve rod (601) is fitted with a third sleeve (602). The upper end of the third sleeve (602) is fixed to the bottom of the lifting plate (16), and the side wall of each third sleeve (602) is fitted with a third spring (603). The top of the base plate (1) is fixedly connected with an L-shaped baffle (604).

4. A welding fixture for multi-angle weld failure testing of metallic materials according to claim 1, characterized in that: The centering mechanism includes a plurality of second support blocks (701) fixedly connected to the side wall of the disc (18), and the side wall of each second support block (701) is connected to a centering plate (702) through a moving mechanism. The top of the centering plate (702) is fixedly connected to an inclined plate (703), and the side walls of the centering plate (702) and the inclined plate (703) are provided with ball bearings (704).

5. A welding fixture for multi-angle weld failure testing of metallic materials according to claim 4, characterized in that: The moving mechanism includes a second electromagnet (901) fixedly connected to the top of the second support block (701), and an iron block (902) fixedly connected to the side wall of the centering plate (702). A second reset mechanism is provided between the second support block (701) and the centering plate (702).

6. A welding fixture for multi-angle weld failure testing of metallic materials according to claim 5, characterized in that: The second reset mechanism includes two fourth sleeve rods (801) fixedly connected to the side wall of the second support block (701), and the side wall of the fourth sleeve rod (801) is fitted with a fourth sleeve tube (802), the other end of the fourth sleeve tube (802) is fixed to the side wall of the center plate (702), and the side wall of each fourth sleeve tube (802) is fitted with a fourth spring (803).

7. A welding fixture for multi-angle weld failure testing of metallic materials according to claim 1, characterized in that: The driving mechanism includes a gear ring (1001) fixedly sleeved on the side wall of the rotating disk (25), and a U-shaped plate (1002) fixedly connected to the side wall of the moving plate (1102). A second motor (1003) is fixedly connected to the side wall of the U-shaped plate (1002), and a torque sensor (1004) is fixedly connected to the output end of the second motor (1003). A gear (1005) is fixedly connected to the other end of the torque sensor (1004), and the gear (1005) meshes with the gear ring (1001).

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