Automatic weld opening grinding machine

Abstract

The utility model discloses a welding opening automatic polisher, include: operation platform and transverse drive mechanism, the edge portion of operation platform top near back fixedly connected with inverted L type opening support frame, inverted L type opening support frame back middle fixedly connected with motor no.

Description

Technical Field

[0001] This utility model relates to the technical field of weld joint grinding equipment, specifically an automatic weld joint grinding machine. Background Technology

[0002] A weld grinding machine is an electric or pneumatic tool specifically designed for treating weld joints after metal welding. It is typically equipped with various grinding attachments such as grinding wheels, wire wheels, and flap wheels. Its core function is to grind, repair, and polish weld beads, slag, spatter, and uneven weld surfaces formed after welding. It can remove oxide layers and impurities from the weld joint, providing a smooth and clean surface for subsequent processes such as flaw detection and anti-corrosion coating, thus ensuring the quality of subsequent processes.

[0003] For example, the welded pipe beveling grinding machine disclosed in Chinese patent literature (announcement number: CN214559653U) uses a grinding wheel clamp to enable a set of grinding machines to use grinding wheels of different sizes in order to achieve efficient grinding of pipes of different diameters.

[0004] However, the core operation of this welded pipe beveling grinding machine requires manual hand-held operation. Grinding is completed by manually controlling the fit between the grinding wheel and the welded pipe. The grinding accuracy and force depend entirely on the operator's experience. If the hand shakes or the angle deviates, the roundness and smoothness of the weld joint may not meet the standards. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic weld grinding machine in order to solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic weld grinding machine, comprising: an operating table and a transverse drive mechanism. An inverted L-shaped opening support frame is fixedly connected to the upper edge of the operating table near the back side. A motor is fixedly connected to the middle of the back side of the inverted L-shaped opening support frame. A lead screw is rotatably connected to the middle of the inner side of the inverted L-shaped opening support frame. Limiting slide rods are symmetrically fixedly connected to the two ends of the inner side of the inverted L-shaped opening support frame away from the lead screw. A clamping mechanism is provided on one side of the operating table. A connecting block is provided at the middle of the top of the transverse drive mechanism. Sliding sleeves are symmetrically provided at the two ends of the top of the transverse drive mechanism away from the connecting block.

[0007] As a further embodiment of this utility model: the transverse drive mechanism includes a transverse base, a second motor, and a first gear. The first connecting block and the first sliding sleeve are both fixedly connected to the transverse base. The second motor is fixedly connected to the top edge of the transverse base, and the first gear is fixedly connected to the output end of the second motor. A second lead screw, a grinding assembly, and a second connecting block are also included. The second lead screw is rotatably connected to the middle of the inner side of the transverse base, and the other end of the second lead screw extends through the transverse base to its outside. The grinding assembly is located below the transverse base, and the second connecting block is located at the middle of the top of the grinding assembly. A second limiting slide rod and a second gear are also included. The second limiting slide rod is symmetrically fixedly connected to both ends of the inner side of the transverse base away from the second lead screw, and the second gear is fixedly connected to the other end of the second lead screw extending from the transverse base.

[0008] As a further embodiment of this utility model: the grinding assembly includes a fixed frame, sliding lugs and a rotating shaft, the second connecting block is fixedly connected to the fixed frame, the sliding lugs are symmetrically fixedly connected to both sides of the top of the fixed frame, the sliding lugs are horizontally slidably connected to the second limiting slide rod, and the rotating shaft is rotatably connected to the lower inner side of the fixed frame; a grinding wheel and a third motor, the grinding wheel is fixedly connected to the middle of the grinding wheel, the third motor is fixedly connected to one end below the fixed frame, and the output end of the third motor is fixedly connected to the rotating shaft.

[0009] As a further embodiment of this utility model: the clamping mechanism includes a side support frame, a first cylinder, and a first clamping plate. The side support frame is symmetrically and fixedly connected to both ends of one side of the operating table. The first cylinder is symmetrically and fixedly connected above the two sets of side support frames. The first clamping plate is fixedly connected to the movable end of the two sets of first cylinders. A second cylinder, a second clamping plate, and an arc-shaped groove are also included. The second cylinder is symmetrically and fixedly connected below the two sets of side support frames. The second clamping plate is fixedly connected to the movable end of the two sets of second cylinders. The arc-shaped groove is symmetrically opened at both ends of the first and second clamping plates.

[0010] As a further embodiment of this utility model: the lead screw and the connecting block are threadedly connected, the other end of the lead screw passes through the inverted L-shaped opening support frame and is fixedly connected to the output end of the motor, and the limiting slide rod is horizontally slidably connected to the sliding sleeve.

[0011] As a further improvement of this utility model: the clamping mechanism is provided in two sets, with the other set of clamping mechanisms located on the other side of the operating table.

[0012] As a further embodiment of this utility model: the lead screw and the grinding assembly are threadedly connected, and the gear one and the gear two mesh with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a workpiece with a weld joint is placed on an operating table and fixed by two sets of clamping mechanisms. Activating cylinders one and two moves clamping plates one and two closer to the workpiece. The flat surface can fix plate-shaped workpieces, while the arc-shaped groove can fit tubular workpieces. This allows for adaptation to different workpiece shapes without changing clamps, improving versatility and reducing debugging time. After fixing, motor one drives lead screw one to rotate, which, combined with the guide of limit slide rod one and slide sleeve one, causes the transverse drive mechanism to move longitudinally, adjusting the position of the grinding components. Motor two drives gear one and gear two to rotate, driving lead screw two. With the help of the limit slide bar two and the sliding lug, the grinding component moves laterally, allowing the grinding wheel to be precisely aligned with the weld joint. High-precision adjustment in both directions ensures no missed grinding and no over-grinding. Finally, motor three drives the rotating shaft to make the grinding wheel rotate at high speed for grinding. During the process, the position can be flexibly adjusted by motor one and motor two to ensure that the weld joint is ground evenly and accurately. This automated operation eliminates the need for manual handling of the workpiece, avoiding quality fluctuations caused by uneven manual force and angular deviations, reducing the safety risks of contact with the high-speed grinding wheel, and greatly improving efficiency. It is suitable for batch standardized operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the inverted L-shaped opening support frame in this utility model; Figure 3 This is a schematic diagram of the transverse drive mechanism in this utility model; Figure 4 This is a schematic diagram of the grinding component in this utility model; Figure 5 This is a schematic diagram of the clamping mechanism in this utility model.

[0015] In the diagram: 1. Operating table; 2. Inverted L-shaped opening support frame; 3. Motor 1; 4. Lead screw 1; 5. Limiting slide rod 1; 6. Lateral drive mechanism; 61. Lateral base; 62. Motor 2; 63. Gear 1; 64. Lead screw 2; 65. Grinding assembly; 651. Fixing frame; 652. Sliding lug; 653. Rotating shaft; 654. Grinding wheel; 655. Motor 3; 66. Connecting block 2; 67. Limiting slide rod 2; 68. Gear 2; 7. Clamping mechanism; 71. Side support frame; 72. Cylinder 1; 73. Clamping plate 1; 74. Cylinder 2; 75. Clamping plate 2; 76. Arc groove; 8. Connecting block 1; 9. Sliding sleeve 1. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0018] Reference Figures 1 to 5 In this embodiment of the utility model, the automatic weld grinding machine includes: an operating table 1 and a transverse drive mechanism 6. The operating table 1 serves as a basic load-bearing structure for placing the workpiece with weld to be ground, providing a stable operating platform for subsequent clamping and grinding. An inverted L-shaped opening support frame 2 is fixedly connected to the upper edge of the operating table 1 near the back side for installing and fixing drive and grinding components. A motor 3 is fixedly connected to the middle of the back side of the inverted L-shaped opening support frame 2 as a power source for longitudinal drive.

[0019] A lead screw 4 is rotatably connected to the middle of the inner side of the inverted L-shaped opening support frame 2. Limiting slide rods 5 are symmetrically fixedly connected to the two ends of the inner side of the inverted L-shaped opening support frame 2 away from the lead screw 4. A clamping mechanism 7 is provided on one side of the operating table 1. A connecting block 8 is provided at the middle of the top of the transverse drive mechanism 6. Sliding sleeves 9 are symmetrically provided at the two ends of the top of the transverse drive mechanism 6 away from the connecting block 8.

[0020] The lead screw 4 and the connecting block 8 are threaded together. The other end of the lead screw 4 passes through the inverted L-shaped opening support frame 2 and is fixedly connected to the output end of the motor 3. The limiting slide rod 5 and the sliding sleeve 9 are horizontally slidably connected. There are two sets of clamping mechanisms 7. The other set of clamping mechanisms 7 is located on the other side of the operating table 1. The motor 3 drives the lead screw 4 to rotate. Since the lead screw 4 and the connecting block 8 are threaded together, and the limiting slide rod 5 and the sliding sleeve 9 slide together to play a guiding role, the entire transverse drive mechanism 6 can move horizontally along the direction of the limiting slide rod 5, thereby adjusting the position of the grinding parts.

[0021] Reference Figures 1 to 4 The transverse drive mechanism 6 includes a transverse base 61, a second motor 62, and a first gear 63. The first connecting block 8 and the first sliding sleeve 9 are both fixedly connected to the transverse base 61. The second motor 62 is fixedly connected to the top edge of the transverse base 61, and the first gear 63 is fixedly connected to the output end of the second motor 62. The second lead screw 64, the grinding assembly 65, and the second connecting block 66 are rotatably connected to the middle of the inner side of the transverse base 61. The other end of the second lead screw 64 extends through the transverse base 61 to its outside. The grinding assembly 65 is located below the transverse base 61, and the second connecting block 66 is located at the middle of the top of the grinding assembly 65. Limiting slide bar 2 67 and gear 2 68, the limiting slide bar 2 67 is symmetrically fixedly connected to the two ends of the transverse base 61 away from the lead screw 2 64, and the gear 2 68 is fixedly connected to the other end of the lead screw 2 64 extending from the transverse base 61; The lead screw 64 and the grinding assembly 65 are threaded together, and the gear 63 and the gear 68 mesh with each other.

[0022] The grinding assembly 65 includes a fixed frame 651, a sliding lug 652 and a rotating shaft 653. The connecting block 66 is fixedly connected to the fixed frame 651. The sliding lug 652 is symmetrically fixedly connected to both sides of the top of the fixed frame 651. The sliding lug 652 is horizontally slidably connected to the limiting slide rod 67. The rotating shaft 653 is rotatably connected to the lower inner side of the fixed frame 651. The grinding wheel 654 and motor 655 are fixedly connected at the middle of the grinding wheel 654. Motor 655 is fixedly connected to one end of the fixed frame 651. The output end of motor 655 is fixedly connected to the rotating shaft 653. Motor 62 drives gear 63 to rotate. Since gear 63 meshes with gear 68, it drives lead screw 64 to rotate. Lead screw 64 is threadedly connected to the grinding assembly 65. Under the sliding guidance of limit slide 67 and sliding lug 652, the grinding assembly 65 moves horizontally along the direction of limit slide 67 to achieve lateral position adjustment, so that the grinding wheel 654 is accurately aligned with the weld position of the workpiece. Then, motor 655 drives the rotating shaft 653 to rotate, thereby making the grinding wheel 654 rotate at high speed to perform grinding operation on the weld of the workpiece.

[0023] Reference Figure 1 and Figure 5 The clamping mechanism 7 includes a side support frame 71, a cylinder 72, and a clamping plate 73. The side support frame 71 is symmetrically fixedly connected to both ends of one side of the operating table 1. The cylinder 72 is symmetrically fixedly connected to the top of the two sets of side support frames 71. The clamping plate 73 is fixedly connected to the movable end of the two sets of cylinders 72. The second cylinder 74, the second clamping plate 75, and the arc-shaped groove 76 are symmetrically fixedly connected to the lower part of the two sets of side support frames 71. The second clamping plate 75 is fixedly connected to the movable end of the two sets of cylinders 74. The arc-shaped groove 76 is symmetrically opened at both ends of the first clamping plate 73 and the second clamping plate 75. Through the first cylinder 72 and the second cylinder 74, their movable ends are extended, driving the first clamping plate 73 and the second clamping plate 75 to move closer to the workpiece. When clamping a plate-shaped workpiece, the plane of the first clamping plate 73 and the second clamping plate 75 can be used to clamp it directly. When clamping a tubular workpiece, the arc-shaped groove 76 at both ends of the two plates is used to fit the surface of the tubular workpiece, and the workpiece is firmly clamped from the top and bottom. In this way, the plate-shaped workpiece can be fixed by the plane, and the curved surface of the tubular workpiece can be fitted by the arc-shaped groove 76. Different shapes of workpieces can be processed without changing the fixture.

[0024] The working principle of this utility model is as follows: When in use, the workpiece with weld joint to be ground is first placed on the operating table 1, and the workpiece is fixed by two sets of clamping mechanisms 7. In specific operation, cylinder 1 72 and cylinder 2 74 are started, so that their movable ends extend and drive clamping plates 1 73 and 2 75 to move closer to the workpiece. When clamping plate-shaped workpieces, the planes of clamping plates 1 73 and 2 75 can be used to clamp them directly. When clamping tubular workpieces, the arc grooves 76 at both ends of the two plates are used to fit the surface of the tubular workpiece and clamp the workpiece firmly from the top and bottom. In this way, the plate-shaped workpiece is fixed by the plane, and the curved surface of the tubular workpiece can be fitted by the arc grooves 76. Different shapes of workpieces can be processed without changing the fixtures, which improves the versatility of the equipment and reduces the time for replacement and debugging. After fixing, the lead screw 4 is driven to rotate by the motor 3. Since the lead screw 4 is threadedly connected to the connecting block 8, and the limiting slide rod 5 and the sliding sleeve 9 slide to play a guiding role, the entire transverse drive mechanism 6 can move horizontally along the direction of the limiting slide rod 5, and adjust the relative position of the grinding assembly 65 with the workpiece weld in the longitudinal direction. Simultaneously, the operation of motor 2 62 drives gear 1 63 to rotate. Since gear 1 63 meshes with gear 2 68, it drives lead screw 2 64 to rotate. Lead screw 2 64 is threadedly connected to grinding assembly 65. Under the sliding guidance of limit slide rod 2 67 and sliding lug 652, grinding assembly 65 moves horizontally along limit slide rod 2 67 to achieve position adjustment in the lateral direction, so that grinding wheel 654 is precisely aligned with the weld position of the workpiece. In this way, through the high-precision adjustment of longitudinal and lateral lead screw transmission, the grinding wheel 654 can be precisely aligned with the weld, ensuring no missed grinding or over-grinding. Finally, motor 3 (655) is started, and its output drives shaft 653 to rotate, which in turn causes grinding wheel 654 to rotate at high speed to grind the weld joint of the workpiece. During the grinding process, the position of grinding wheel 654 can be flexibly adjusted by controlling motors 1 (3) and 2 (62) to ensure that all parts of the weld joint are ground evenly and precisely. Thus, from the clamping driven by cylinders 1 (72) and 2 (74), to the position adjustment by motors 1 (3) and 2 (62), and then to the grinding wheel 654 driven by motor 3 (655), the operation is automated. There is no need for manual handling of the workpiece to be placed against the grinding wheel 654. This not only completely avoids the grinding quality fluctuations caused by uneven force and angle deviation during manual operation, but also reduces the safety risk of operators directly contacting the high-speed rotating grinding wheel 654. At the same time, it greatly improves the grinding efficiency of a single workpiece, which is especially suitable for standardized operations in mass production scenarios.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic weld joint grinding machine, characterized in that, include: The operating table (1) and the transverse drive mechanism (6) are provided. An inverted L-shaped opening support frame (2) is fixedly connected to the upper edge of the operating table (1) near the back. A motor (3) is fixedly connected to the middle of the back of the inverted L-shaped opening support frame (2). A lead screw (4) is rotatably connected to the middle of the inner side of the inverted L-shaped opening support frame (2). Limiting slide rods (5) are symmetrically fixedly connected to the two ends of the inner side of the inverted L-shaped opening support frame (2) away from the lead screw (4). A clamping mechanism (7) is provided on one side of the operating table (1). A connecting block (8) is provided at the middle of the top of the transverse drive mechanism (6). Sliding sleeves (9) are symmetrically provided at the two ends of the top of the transverse drive mechanism (6) away from the connecting block (8).

2. The automatic weld grinding machine according to claim 1, characterized in that, The lateral drive mechanism (6) includes: The transverse base (61), motor 2 (62) and gear 1 (63) are fixedly connected to the transverse base (61), the connecting block 1 (8) and the sliding sleeve 1 (9) are fixedly connected to the top edge of the transverse base (61), and the gear 1 (63) is fixedly connected to the output end of motor 2 (62). The components include a second lead screw (64), a grinding assembly (65), and a second connecting block (66). The second lead screw (64) is rotatably connected to the middle of the inner side of the transverse base (61). The other end of the second lead screw (64) extends through the transverse base (61) to its outside. The grinding assembly (65) is located below the transverse base (61), and the second connecting block (66) is located at the middle of the top of the grinding assembly (65). Limiting slide bar two (67) and gear two (68), the limiting slide bar two (67) is symmetrically fixedly connected to the two ends of the inner side of the transverse base (61) away from the lead screw two (64), and the gear two (68) is fixedly connected to the other end of the lead screw two (64) extending from the transverse base (61).

3. The automatic weld grinding machine according to claim 2, characterized in that, The polishing assembly (65) includes: The frame consists of a fixed frame (651), a sliding lug (652), and a rotating shaft (653). The connecting block 2 (66) is fixedly connected to the fixed frame (651). The sliding lug (652) is symmetrically fixedly connected to both sides of the top of the fixed frame (651). The sliding lug (652) is horizontally slidably connected to the limiting slide rod 2 (67). The rotating shaft (653) is rotatably connected to the lower inner side of the fixed frame (651). The grinding wheel (654) and motor three (655) are fixedly connected to the middle of the grinding wheel (654), and the motor three (655) is fixedly connected to one end of the fixing frame (651). The output end of the motor three (655) is fixedly connected to the rotating shaft (653).

4. The automatic weld grinding machine according to claim 1, characterized in that, The clamping mechanism (7) includes: Side support frame (71), cylinder one (72) and clamping long plate one (73), the side support frame (71) is symmetrically fixedly connected to both ends of one side of the operating table (1), the cylinder one (72) is symmetrically fixedly connected to the top of the two sets of side support frames (71), and the clamping long plate one (73) is fixedly connected to the movable end of the two sets of cylinder one (72); The second cylinder (74), the second clamping plate (75), and the arc groove (76) are symmetrically fixedly connected to the bottom of the two sets of side support frames (71), the second clamping plate (75) is fixedly connected to the movable end of the two sets of cylinders (74), and the arc groove (76) is symmetrically opened at both ends of the first clamping plate (73) and the second clamping plate (75).

5. The automatic weld grinding machine according to claim 1, characterized in that, The lead screw (4) and the connecting block (8) are threaded together. The other end of the lead screw (4) passes through the inverted L-shaped opening support frame (2) and is fixedly connected to the output end of the motor (3). The limiting slide rod (5) and the sliding sleeve (9) are horizontally slidably connected.

6. The automatic weld grinding machine according to claim 1, characterized in that, The clamping mechanism (7) is provided in two sets, with the other set of clamping mechanism (7) located on the other side of the operating table (1).

7. The automatic weld grinding machine according to claim 2, characterized in that, The lead screw (64) and the grinding assembly (65) are threaded together, and the gear (63) and the gear (68) mesh with each other.

Images