A welding joint impact specimen machining device

Abstract

The application discloses a kind of welding joint impact sample processing device, including main component and cutting component;The main component is composed of four support columns, motor, screw rod, sliding rod, four support columns are set up, the both ends of the screw rod are respectively rotationally connected in two support columns, the both ends of the sliding rod are respectively fixedly connected in the other two support columns, the motor is installed on the outer wall of one of support columns, the output shaft of the motor is fixedly connected with the screw rod, the linkage operation of the above component can make V-shaped block always in the center point of welding joint, avoid position eccentric when slotting, realize the accurate control of cutting length and positioning, and then reduce the occurrence of position deviation.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, and in particular to a device for processing impact test specimens of welded joints. Background Technology

[0002] In the quality assessment of welding processes, the processing quality of impact test specimens for welded joints is crucial. Traditional equipment and methods for processing impact test specimens for welded joints have a series of problems that urgently need to be addressed.

[0003] Currently, the preparation of impact test specimens for welded joints typically involves first processing the welded test plate into a standard blank according to specifications. The width and thickness of the blank must meet the specifications, and the length is reserved at 80-120mm. In terms of controlling the processing length, the traditional processing method requires three positioning markings and two positioning cuts on the blank, followed by manual pushing of the specimen for cutting. This measurement method is complex and has poor accuracy. Furthermore, the vibration generated by the cutting equipment during the cutting process can easily be transmitted to the welded joint, leading to defects such as cracks on the cut surface, which seriously affects the quality of the specimen. To address these issues, this invention proposes a novel impact test specimen processing device for welded joints. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding joint impact test specimen processing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding joint impact test specimen processing device includes a main body assembly and a cutting assembly;

[0007] The main component consists of four support columns, a motor, a lead screw, and a slide bar. The four support columns are stacked together. The two ends of the lead screw are rotatably connected to two of the support columns, and the two ends of the slide bar are fixedly connected to the other two support columns. The motor is installed on the outer wall of one of the support columns, and the output shaft of the motor is fixedly connected to the lead screw.

[0008] The cutting assembly consists of a slider, two sets of first piston cylinders, two sets of first springs, two sets of first piston rods, a fixing block, a second motor, a transmission shaft, and a cutting blade. Two of the support columns have sliding grooves. The two sets of first piston cylinders are respectively disposed within the two sliding grooves. The first piston rods are slidably connected to the inner walls of the first piston cylinders. One end of the first spring is fixedly connected to the inner wall of the first piston cylinder, and the other end is fixedly connected to the lower end of the first piston rod. The upper ends of the two first piston rods are jointly fixedly connected to the lower end of the slider. The slider is slidably connected to the two sliding grooves. The fixing block is fixedly connected to the lower end of the slider. The second motor is mounted on the outer wall of the fixing block. The output shaft of the second motor is fixedly connected to the transmission shaft. The cutting blade is fixedly connected to the axial outer wall of the transmission shaft.

[0009] Preferably, a fixing plate is fixedly connected to the upper end of the slider, a sliding plate is fixedly connected to the side wall of the fixing plate, a sliding groove is provided on the sliding plate, a T-shaped slider is slidably connected to the sliding groove, a second piston cylinder is fixedly connected to the side wall of the fixing plate, a second piston rod is slidably connected to the inner wall of the second piston cylinder, and a second spring is sleeved on the second piston rod.

[0010] Preferably, the fixed box is rotatably connected to a first gear that is fixedly connected to a crushing roller, the lower end of the T-shaped slider is fixedly connected to a telescopic cylinder, the inner wall of the telescopic cylinder is slidably connected to a telescopic rod, the outer wall of the telescopic rod is sleeved with a return spring, and the lower end of the telescopic rod is fixedly connected to a V-shaped block.

[0011] Preferably, a support plate is fixedly connected to the side wall of one of the support columns, a first rotating shaft is rotatably connected to the upper end of the support plate, a second rotating shaft is rotatably connected to the upper end of the support plate, a first gear is fixedly connected to the axial outer wall of the first rotating shaft, a second gear is fixedly connected to the axial outer wall of the second rotating shaft, a differential gear is fixedly connected to the axial outer wall of the second rotating shaft, and an L-shaped groove is provided at the upper end of the support plate, with a second rack slidably connected to the L-shaped groove.

[0012] Preferably, the lead screw is threaded through and connected to a push plate, the slide rod is slidably connected through and connected to the push plate, the upper end of the push plate is fixedly connected to a rack, the rack meshes with a first gear, the first gear meshes with a second gear, the differential gear meshes with a second rack, and the upper end of the second rack is fixedly connected to a transmission rod.

[0013] Preferably, the side walls of the two support columns 1 are fixedly connected to support blocks 101, and the upper ends of the two support blocks 101 are jointly fixedly connected to measuring rulers 102.

[0014] Preferably, the side walls of the four support columns 1 are fixedly connected to a placement plate 4, and the upper end of the placement plate 4 is provided with a placement groove 201.

[0015] The present invention has the following beneficial effects:

[0016] 1. During the cutting process, as the slider moves downwards, the piston rod slides within the piston cylinder and compresses the first spring. This buffer structure effectively reduces vibration and provides protection, preventing cracks caused by vibration during cutting, significantly improving cutting accuracy, and ensuring the quality of sample processing.

[0017] 2. When the slider drives the cutting blade to cut the weld joint, it will simultaneously drive the related structure to move the V-block downwards. When the V-block contacts the weld joint, it can apply downward pressure to ensure that the joint does not shift, and it can also imprint a V-shape through the printing cloth with ink on its lower end, providing precise positioning for the next step of opening the V-groove, greatly improving the convenience and accuracy of processing.

[0018] 3. The motor drives the lead screw to rotate, causing the push plate to push the welding joint to the specified cutting length. At the same time, the push plate moves horizontally through a gear and rack transmission, driving the T-shaped slider and V-shaped block to move horizontally. The movement distance of the T-shaped slider has a specific proportional relationship with the push plate, ensuring that the V-shaped block is always at the center point of the welding joint, avoiding positional deviation during grooving, and achieving precise control of the cutting length and positioning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a welding joint impact test specimen processing device proposed in this invention;

[0020] Figure 2 This is a side view of the structure of a welding joint impact test specimen processing device proposed in this invention;

[0021] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the telescopic cylinder, telescopic rod, and other structures in this invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the second piston cylinder;

[0024] Figure 6 This is a schematic diagram of the internal structure of the first piston cylinder in this invention;

[0025] Figure 7 This is a schematic diagram of the supporting plate and L-shaped groove in this invention.

[0026] In the diagram: 1 Support column, 2 Motor, 3 Lead screw, 4 Placement plate, 5 Push plate, 6 Sliding groove, 7 First piston cylinder, 8 First spring, 9 First piston rod, 10 Slider, 1001 Second motor, 1002 Fixing block, 1003 Transmission shaft, 1004 Cutting blade, 11 Fixing plate, 12 Slide plate, 13 Sliding groove, 14 T-shaped slider, 1401 Telescopic cylinder, 1402 Telescopic rod, 1403 Return spring, 1404 V-block, 15 Second piston cylinder, 16 Second piston rod, 17 Second spring, 18 Sliding rod, 19 Support plate, 1901 L-shaped sliding groove, 101 Support block, 102 Measuring ruler, Placement groove 201, 501 Rack, 502 First gear, 503 First rotating shaft, 504 Second gear, 505 Second rotating shaft, 506 Second rack, 507 Differential gear, 508 Transmission rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example 1:

[0029] Reference Figure 1 - Figure 7 A welding joint impact test specimen processing device, comprising a main body assembly and a cutting assembly:

[0030] The main component consists of four support columns 1, a motor 2, a lead screw 3, and a slide rod 18. The four support columns 1 are stacked together. The two ends of the lead screw 3 are rotatably connected to two of the support columns 1 respectively. The two ends of the slide rod 18 are fixedly connected to the other two support columns 1 respectively. The motor 2 is installed on the outer wall of one of the support columns 1, and the output shaft of the motor 2 is fixedly connected to the lead screw 3.

[0031] The cutting assembly consists of a slider 10, two sets of first piston cylinders 7, two sets of first springs 8, two sets of first piston rods 9, a fixing block 1002, a second motor 1001, a transmission shaft 1003, and a cutting blade 1004. Two support columns 1 have sliding grooves 6. The two sets of first piston cylinders 7 are respectively disposed within the two sliding grooves 6. The first piston rods 9 are slidably connected to the inner wall of the first piston cylinder 7. One end of the first spring 8 is fixedly connected to the inner wall of the first piston cylinder 7, and the other end is fixedly connected to the lower end of the first piston rod 9. The upper ends of the two first piston rods 9 are jointly fixedly connected to the lower end of the slider 10. The slider 10 is slidably connected to the two sliding grooves 6. The fixing block 1002 is fixedly connected to the lower end of the slider 10. The second motor 1001 is mounted on the outer wall of the fixing block 1002. The output shaft of the second motor 1001 is fixedly connected to the transmission shaft 1003. The cutting blade 1004 is fixedly connected to the axial outer wall of the transmission shaft 1003.

[0032] The side walls of the four support columns 1 are fixedly connected to the placement plate 4, and the upper end of the placement plate 4 is provided with a placement groove 201.

[0033] In this embodiment, the weld joint to be cut is first placed in the placement groove 201, and the part of the weld joint to be cut is pushed out of the placement groove 201. Then, the second motor 1001 is started, and the output shaft of the second motor 1001 drives the transmission shaft 1003 to rotate, thereby causing the cutting blade 1004 fixed on the outer wall of the transmission shaft 1003 to rotate at high speed. At this time, the slider 10 is pressed down. When the slider 10 moves down, the first piston rod 9 slides in the first piston cylinder 7, compressing the first spring 8, thereby playing a role in shock absorption and protection when cutting the weld joint, thus improving the accuracy of cutting and avoiding cracks. After the weld joint is cut, the slider 10 is stopped, and the first spring 8 is reset, thereby pushing the slider 10 to reset, completing the cutting.

[0034] Example 2:

[0035] Reference Figure 1 - Figure 7 Compared to Embodiment 1, in this embodiment, the upper end of the slider 10 is fixedly connected to a fixing plate 11, the side wall of the fixing plate 11 is fixedly connected to a sliding plate 12, the sliding plate 12 is provided with a sliding groove 13, the sliding groove 13 is slidably connected to a T-shaped slider 14, the side wall of the fixing plate 11 is fixedly connected to a second piston cylinder 15, the inner wall of the second piston cylinder 15 is slidably connected to a second piston rod 16, and the second piston rod 16 is sleeved with a second spring 17.

[0036] The lower end of the T-shaped slider 14 is fixedly connected to a telescopic cylinder 1401. The inner wall of the telescopic cylinder 1401 is slidably connected to a telescopic rod 1402. The outer wall of the telescopic rod 1402 is fitted with a return spring 1403. The lower end of the telescopic rod 1402 is fixedly connected to a V-shaped block 1404. It should be noted that the origin of the T-shaped slider 14 is the middle position of the placement groove 201. It should also be noted that the lower end of the V-shaped block 1404 is provided with a printing cloth with ink.

[0037] In this embodiment, when the slider 10 moves downward and drives the cutting blade 1004 to cut the weld joint, the fixed plate 11 simultaneously drives the sliding plate 12. When the sliding plate 12 moves downward, it drives the T-shaped slider 14 downward, thereby driving the telescopic cylinder 1401 downward and the telescopic rod 1402 downward, which in turn drives the V-block 1404 downward. When the V-block 1404 contacts the weld joint, it applies a downward pressure to the weld joint to ensure that the weld joint does not shift. At the same time, the ink on the V-block 1404 marks the weld joint with a V-shape, which facilitates the positioning when opening the V-groove in the next step. When the slider 10 moves downward, the telescopic rod 1402 slides in the telescopic cylinder 1401 to avoid blocking the cutting blade 1004 from cutting the weld joint. When the cutting is completed, the slider 10 resets, and the V-block 1404 resets under the action of the reset spring 1403.

[0038] Example 3:

[0039] Reference Figure 1 - Figure 7 Compared to Embodiment 2, in this embodiment, a support plate 19 is fixedly connected to the side wall of one of the support columns 1. A first rotating shaft 503 is rotatably connected to the upper end of the support plate 19, and a second rotating shaft 505 is rotatably connected to the upper end of the support plate 19. A first gear 502 is fixedly connected to the axial outer wall of the first rotating shaft 503, a second gear 504 is fixedly connected to the axial outer wall of the second rotating shaft 505, and a differential gear 507 is fixedly connected to the axial outer wall of the second rotating shaft 505. The upper end of the plate 19 is provided with an L-shaped slide groove 1901, and the L-shaped slide groove 1901 is slidably connected to the second rack 506. The lead screw 3 is threadedly connected to the push plate 5, and the slide rod 18 is slidably connected to the push plate 5. The upper end of the push plate 5 is fixedly connected to the rack 501. The rack 501 meshes with the first gear 502, the first gear 502 meshes with the second gear 504, the differential gear 507 meshes with the second rack 506, and the upper end of the second rack 506 is fixedly connected to the transmission rod 508.

[0040] Support blocks 101 are fixedly connected to the side walls of the two support columns 1. The upper ends of the two support blocks 101 are fixedly connected to the measuring ruler 102. It should be noted that the starting point of the push surface of the push plate 5 is the starting point of the placement groove 201. It should be noted that the tooth ratio of the first gear 502 to the second gear 504 is 2:1. It should be noted that the tooth ratio of the differential gear 507 to the first gear 502 is 1:1. It should be noted that the transmission rod 508 is located at the front end of the T-shaped slider 14. It should be noted that the measuring starting point of the measuring ruler 102 is the push surface of the push plate 5.

[0041] In this embodiment, the weld joint to be cut is placed in the placement groove 201. According to the measuring ruler 102, the motor 2 is started, and the output shaft of the motor 2 drives the lead screw 3 to rotate. Since the push plate 5 is threaded to the lead screw 3 and slidably connected to the slide rod 18, when the lead screw 3 rotates, the push plate 5 will move linearly along the slide rod 18 and the lead screw 3, thereby pushing the weld joint to the specified required cutting length;

[0042] Simultaneously, when the push plate 5 moves, since the rack 501 fixedly connected to the upper end of the push plate 5 meshes with the first gear 502, the rack 501 drives the first gear 502 to rotate when the push plate 5 moves. The first gear 502 meshes with the second gear 504, and the rotation of the first gear 502 will drive the second gear 504 to rotate. When the second gear 504 rotates, it will drive the differential gear 507 to rotate. Since the differential gear 507 meshes with the second rack 506, the rotation of the second gear 504 will drive the second rack 506 to slide in the L-shaped slide groove 1901 through the differential gear 507. When the second rack 506 moves, it will push the T-shaped slider 14 through the transmission rod 508, thereby driving the lower telescopic cylinder 1401 and V-shaped block 1404 to move horizontally. At the same time, the movement of the T-shaped slider 14 will also push the second piston cylinder 15. When the second piston cylinder 15 moves, the second piston rod 16 inside it will contract under pressure. The transmission ratio between gear 502 and second gear 504 is 2:1. When first gear 502 rotates one revolution, second gear 504 rotates half a revolution, which in turn can only drive differential gear 507 to rotate half a revolution. Since the gear ratio between differential gear 507 and first gear 502 is 1:1, the transmission ratio between push plate 5 and transmission rod 508 is 2:1. This makes the moving distance of T-shaped slider 14 only half that of push plate 5, so that T-shaped slider 14 is always in the center of the weld joint of the required length, and the positioning position of V-block 1404 is at the center point of the weld joint, avoiding positional deviation when slotting.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding joint impact test specimen processing device, comprising a main body assembly and a cutting assembly, characterized in that: The main component consists of four support columns (1), a lead screw (3), and a slide rod (18). The four support columns (1) are symmetrically arranged. The two ends of the lead screw (3) are rotatably connected to two of the support columns (1), and the two ends of the slide rod (18) are fixedly connected to the other two support columns (1). The cutting assembly consists of a slider (10), two sets of first piston cylinders (7), two sets of first springs (8), two sets of first piston rods (9), a fixing block (1002), a second motor (1001), a transmission shaft (1003), and a cutting blade (1004). Sliding grooves (6) are provided on the two support columns (1). The two sets of first piston cylinders (7) are respectively disposed in the two sliding grooves (6). The first piston rods (9) are slidably connected to the inner wall of the first piston cylinders (7). One end of the first spring (8) is connected to the inner wall of the first piston cylinder (7). The first piston rod (9) is fixedly connected to the second piston rod (9) at one end, and the upper ends of the two first piston rods (9) are fixedly connected to the lower end of the slider (10). The slider (10) is slidably connected to the two sliding grooves (6). The fixed block (1002) is fixedly connected to the slider (10). The second motor (1001) is mounted on the fixed block (1002). The output shaft of the second motor (1001) is fixedly connected to the transmission shaft (1003). The cutting blade (1004) is fixedly connected to the transmission shaft (1003). One of the support columns is fixedly connected to the first piston rod (9). (1) A support plate (19) is fixedly connected to the side wall. A first rotating shaft (503) is rotatably connected to the upper end of the support plate (19). A second rotating shaft (505) is rotatably connected to the upper end of the support plate (19). A first gear (502) is fixedly connected to the axial outer wall of the first rotating shaft (503). A second gear (504) is fixedly connected to the axial outer wall of the second rotating shaft (505). A differential gear (507) is fixedly connected to the axial outer wall of the second rotating shaft (505). An L-shaped groove (190) is provided at the upper end of the support plate (19). 1) The L-shaped slide groove (1901) is slidably connected to the second rack (506), the lead screw (3) is threadedly connected to the push plate (5), the slide rod (18) is slidably connected to the push plate (5), the upper end of the push plate (5) is fixedly connected to the rack (501), the rack (501) meshes with the first gear (502), the first gear (502) meshes with the second gear (504), the differential gear (507) meshes with the second rack (506), and the upper end of the second rack (506) is fixedly connected to the transmission rod (508).

2. The welding joint impact test specimen processing device according to claim 1, characterized in that, A motor (2) is fixedly connected to the outer wall of one of the support columns (1). The output shaft of the motor (2) is fixedly connected to the lead screw (3). A fixed plate (11) is fixedly connected to the upper end of the slider (10). A sliding plate (12) is fixedly connected to the side wall of the fixed plate (11). A sliding groove (13) is provided on the sliding plate (12). A T-shaped slider (14) is slidably connected to the sliding groove (13). A second piston cylinder (15) is fixedly connected to the side wall of the fixed plate (11). A second piston rod (16) is slidably connected to the inner wall of the second piston cylinder (15). A second spring (17) is sleeved on the second piston rod (16).

3. The welding joint impact test specimen processing device according to claim 2, characterized in that, The lower end of the T-shaped slider (14) is fixedly connected to a telescopic cylinder (1401), the inner wall of the telescopic cylinder (1401) is slidably connected to a telescopic rod (1402), the outer wall of the telescopic rod (1402) is sleeved with a return spring (1403), and the lower end of the telescopic rod (1402) is fixedly connected to a V-shaped block (1404).

4. The welding joint impact test specimen processing device according to claim 1, characterized in that, The side walls of the two support columns (1) are fixedly connected to support blocks (101), and the upper ends of the two support blocks (101) are fixedly connected to a measuring ruler (102).

5. The welding joint impact test specimen processing device according to claim 1, characterized in that, The side walls of the four support columns (1) are fixedly connected to a placement plate (4), and the upper end of the placement plate (4) is provided with a placement groove (201).

Images