Small-diameter steel bar welding head polishing device

Abstract

The utility model discloses a small-diameter steel bar welding head polishing device, which relates to the technical field of steel bar welding head polishing, and comprises a supporting column, a workpiece and a clamping cylinder, the supporting column, the workpiece and the clamping cylinder are symmetrically arranged, the clamping cylinder respectively penetrates through the top end of the supporting column, and the clamping cylinder is movably connected with the supporting column. Clamping mechanisms are arranged on the outer sides of the clamping barrels, and the workpieces penetrate through the clamping barrels respectively. According to the clamping mechanism, as the inner diameter of the clamping cylinder is gradually reduced, the clamping blocks get close to each other, the outer side of a workpiece is forcefully clamped, the moving rod moves along the sliding groove, the end of the moving rod moves in the moving ring, a reset spring is stretched and lengthened, and due to the fact that the size change of a small steel bar is small, the machining precision is high. And through the linear change of the inner diameter of the clamping cylinder, the clamping blocks can be gradually close to each other, so that stepless adjustment is realized, small steel bars in a certain size range can be clamped, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar welding joint grinding, in particular to a grinding device for small-diameter steel bar welding joints. Background Technique

[0002] In the fields of construction and civil engineering, the welding quality of steel bars is directly related to the stability and safety of structures. Due to their flexibility and specific application requirements, small-diameter steel bars are widely used in various projects. However, during the welding process of small-diameter steel bar welding joints, defects such as welding slag and oxide layers are likely to occur. These defects will affect the strength and durability of the welding joints. Therefore, effective grinding treatment of the welding joints is an important step to ensure welding quality.

[0003] However, traditional grinding methods often rely on manual operation, which is not only inefficient, but also difficult to guarantee the grinding quality. In addition, due to the limitation of the size of small-diameter steel bars, it is difficult for existing grinding devices to adapt to steel bars of different diameters. Most clamping devices may support small steel bars of multiple sizes, but they cannot firmly clamp small steel bars within the moving diameter range, resulting in a reduction in practicality during actual operation. For this reason, a grinding device for small-diameter steel bar welding joints is needed to solve the existing deficiencies. Content of the Utility Model

[0004] The purpose of the utility model is to provide a grinding device for small-diameter steel bar welding joints. Through the provided clamping mechanism, the clamping blocks can gradually approach, thereby realizing stepless adjustment and adapting to the clamping of small steel bars within a certain size range, improving the practicality of the device; through the provided grinding mechanism, the distance between the grinding head and the workpiece can be effectively controlled according to the thinning degree of the welding joint, effectively improving the smoothness of grinding at the welding part.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a grinding device for small-diameter steel bar welding joints, including support columns, workpieces, and clamping cylinders. The support columns, workpieces, and clamping cylinders are all symmetrically arranged. The clamping cylinders respectively penetrate the top ends of the support columns, and the clamping cylinders are movably connected to the support columns. A clamping mechanism is arranged on the outer side of the clamping cylinders. The workpieces respectively penetrate the clamping cylinders, and the clamping mechanism is movably connected to the workpieces. A support frame is arranged on the outer side of the support columns, and a grinding mechanism is arranged at the top end of the support frame. The grinding mechanism is movably connected to the welding part of the workpiece.

[0007] The utility model is further arranged such that a toothed ring is fixedly connected to the outer side of the clamping cylinder. One side of the support column is movably connected to a gear through a rotating shaft, and the gear meshes with the toothed ring. One side of the support column is fixedly connected to a servo motor I, and the output end of the servo motor I is fixedly connected to the rotating shaft of the gear.

[0008] The utility model is further configured such that the clamping mechanism includes clamping blocks, moving rods, moving rings and return springs. The clamping blocks, moving rods and return springs are all distributed in a circular array. One end of the moving rod is fixedly connected to the clamping block, and the other end of the moving rod is movably connected to the inside of the moving ring. One end of the return spring is fixedly connected to one end of the moving rod, and the other end of the return spring is fixedly connected to the inside of the moving ring.

[0009] The utility model is further configured such that the moving ring is sleeved on the outside of the clamping cylinder, and the moving ring is movably connected to the clamping cylinder. The clamping block is located inside the clamping cylinder, and the clamping block is movably connected to the outside of the workpiece. The inner diameter of the clamping cylinder changes linearly. A plurality of sliding grooves are formed in the cylinder wall of the clamping cylinder. The sliding grooves are trapezoidal. The moving rods respectively penetrate through the sliding grooves, and the moving rods are movably connected to the sliding grooves.

[0010] The utility model is further configured such that adjusting rings are threadedly connected to the outside of the clamping cylinder. One end of the adjusting ring is rotatably connected to one end of the moving ring, and a plurality of rotating rods are fixedly connected to the outside of the adjusting ring.

[0011] The utility model is further configured such that the grinding mechanism includes a mounting frame, a rotating rod, a second servo motor and a grinding wheel. The rotating rod penetrates through one end of the mounting frame, and the rotating rod is fixedly connected to the mounting frame. The rotating rod penetrates through the top end of the support frame, and the rotating rod is movably connected to the support frame. The second servo motor is fixedly connected to the outside of the support frame, and the output end of the second servo motor is fixedly connected to one end of the rotating rod. The grinding wheel is movably connected to the other end of the mounting frame through a rotating shaft, and the surface of the grinding wheel is in contact with the welding joint of the workpiece.

[0012] The utility model is further configured such that the grinding mechanism further includes a first synchronous pulley, a second synchronous pulley, a synchronous belt and a third servo motor. The first synchronous pulley is fixedly connected to the outside of the rotating shaft of the grinding wheel. The second synchronous pulley is movably connected to one side of the mounting frame through a rotating shaft. The synchronous belt is sleeved on the outside of the first synchronous pulley and the second synchronous pulley, and the first synchronous pulley, the second synchronous pulley and the synchronous belt form a belt drive structure. The third servo motor is fixedly connected to one side of the mounting frame, and the output end of the third servo motor is fixedly connected to the rotating shaft of the second synchronous pulley.

[0013] The utility model has the following beneficial effects:

[0014] 1. Through the clamping mechanism provided by the present utility model, as the inner diameter of the clamping cylinder gradually decreases, the clamping blocks approach each other, thereby firmly clamping the outer side of the workpiece. The moving rod moves along the sliding groove, and the end of the moving rod moves inside the moving ring, causing the return spring to stretch and become longer. Since the size change of the small steel bar is relatively small, through the linear change of the inner diameter of the clamping cylinder, the clamping blocks can gradually approach, thereby realizing stepless adjustment and adapting to the clamping of small steel bars within a certain size range, improving the practicability of the device.

[0015] 2. Through the grinding mechanism provided by the present utility model, the servo motor three is used to drive the synchronous pulley two to rotate. Under the action of the synchronous belt, the synchronous pulley one drives the grinding wheel to rotate. Then, the servo motor two is used to control the rotation of the mounting bracket, so that the surface of the rotating grinding wheel fits the welding joint. As the welding joint is gradually thinned, the grinding wheel gets closer to the workpiece, effectively controlling the distance between the grinding head and the workpiece according to the thinning degree of the welding head, and effectively improving the smoothness of the grinding of the welding joint.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural schematic diagram of another perspective of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the clamping cylinder of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the clamping mechanism of the present utility model;

[0022] Figure 5 is a structural schematic diagram of the grinding mechanism of the present utility model.

[0023] In the figure: 1, support column; 2, workpiece; 3, clamping cylinder; 4, clamping mechanism; 401, clamping block; 402, moving rod; 403, moving ring; 404, return spring; 5, support frame; 6, grinding mechanism; 601, mounting frame; 602, rotating rod; 603, servo motor II; 604, grinding wheel; 605, synchronous pulley I; 606, synchronous pulley II; 607, synchronous belt; 608, servo motor III; 7, toothed ring; 8, gear; 9, servo motor I; 10, chute; 11, adjusting ring; 12, rotating rod. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1-5 shown, the present invention provides a technical solution: a grinding device for a small-diameter steel bar welding head, including a support column 1, a workpiece 2 and a clamping cylinder 3. The support column 1, the workpiece 2 and the clamping cylinder 3 are all symmetrically arranged. The clamping cylinder 3 respectively penetrates the top end of the support column 1, and the clamping cylinder 3 is movably connected to the support column 1. A clamping mechanism 4 is arranged on the outer side of the clamping cylinder 3. The workpiece 2 respectively penetrates the clamping cylinder 3, and the clamping mechanism 4 is movably connected to the workpiece 2. A support frame 5 is arranged on the outer side of the support column 1, and a grinding mechanism 6 is arranged at the top end of the support frame 5. The grinding mechanism 6 is movably connected to the welding joint of the workpiece 2. A toothed ring 7 is fixedly connected to the outer side of the clamping cylinder 3. One side of the support column 1 is movably connected to a gear 8 through a rotating shaft, and the gear 8 meshes with the toothed ring 7. One side of the support column 1 is fixedly connected to a servo motor I 9, and the output end of the servo motor I 9 is fixedly connected to the rotating shaft of the gear 8.

[0026] As Figure 1 、 Figure 3 and Figure 4As shown, the clamping mechanism 4 includes clamping blocks 401, moving rods 402, moving rings 403 and return springs 404. The clamping blocks 401, moving rods 402 and return springs 404 are all distributed in a circular array. One end of the moving rod 402 is fixedly connected to the clamping block 401, and the other end of the moving rod 402 is movably connected to the inside of the moving ring 403. One end of the return spring 404 is fixedly connected to one end of the moving rod 402, and the other end of the return spring 404 is fixedly connected to the inside of the moving ring 403. The moving ring 403 is sleeved on the outside of the clamping cylinder 3, and the moving ring 403 is movably connected to the clamping cylinder 3. The clamping block 401 is located inside the clamping cylinder 3, and the clamping block 401 is movably connected to the outside of the workpiece 2. The inner diameter of the clamping cylinder 3 changes linearly. A plurality of chutes 10 are formed in the cylinder wall of the clamping cylinder 3. The chutes 10 are trapezoidal. The moving rods 402 respectively penetrate through the chutes 10, and the moving rods 402 are movably connected to the chutes 10. Adjusting rings 11 are threadedly connected to the outside of the clamping cylinder 3. One end of the adjusting ring 11 is rotatably connected to one end of the moving ring 403, and a plurality of rotating rods 12 are fixedly connected to the outside of the adjusting ring 11.

[0027] Rotate the rotating rod 12 to make the adjusting ring 11 rotate along the outside of the clamping cylinder 3. The clamping cylinder 3 drives the moving ring 403 to move along the clamping cylinder 3 close to the welding position. Since the inner diameter of the clamping cylinder 3 changes linearly, that is, the inner diameter of the clamping cylinder 3 gradually decreases from the direction of the servo motor 1 9 to the welding position, and the clamping block 401 moves along the inner wall of the clamping cylinder 3. As the inner diameter of the clamping cylinder 3 gradually decreases, the clamping blocks 401 approach each other, so as to strongly clamp the outside of the workpiece 2. The moving rod 402 moves along the chute 10, and the end of the moving rod 402 moves inside the moving ring 403, making the return spring 404 stretch and become longer. Since the size change of the small steel bar is small, through the linear change of the inner diameter of the clamping cylinder 3, the clamping blocks 401 can be gradually brought closer, so as to realize stepless adjustment and adapt to the clamping of small steel bars within a certain size range, improving the practicability of the equipment.

[0028] As Figure 1 and Figure 5As shown in the figure, the grinding mechanism 6 includes a mounting frame 601, a rotating rod 602, a second servo motor 603, and a grinding wheel 604. The rotating rod 602 penetrates through one end of the mounting frame 601, and the rotating rod 602 is fixedly connected to the mounting frame 601. The rotating rod 602 penetrates through the top end of the support frame 5, and the rotating rod 602 is movably connected to the support frame 5. The second servo motor 603 is fixedly connected to the outside of the support frame 5, and the output end of the second servo motor 603 is fixedly connected to one end of the rotating rod 602. The grinding wheel 604 is movably connected to the other end of the mounting frame 601 through a rotating shaft, and the surface of the grinding wheel 604 is in contact with the welding joint of the workpiece 2. The grinding mechanism 6 further includes a first synchronous pulley 605, a second synchronous pulley 606, a synchronous belt 607, and a third servo motor 608. The first synchronous pulley 605 is fixedly connected to the outside of the rotating shaft of the grinding wheel 604. The second synchronous pulley 606 is movably connected to one side of the mounting frame 601 through a rotating shaft. The synchronous belt 607 is sleeved on the outside of the first synchronous pulley 605 and the second synchronous pulley 606, and the first synchronous pulley 605, the second synchronous pulley 606, and the synchronous belt 607 form a belt drive structure. The third servo motor 608 is fixedly connected to one side of the mounting frame 601, and the output end of the third servo motor 608 is fixedly connected to the rotating shaft of the second synchronous pulley 606.

[0029] By using the third servo motor 608 to drive the second synchronous pulley 606 to rotate, under the action of the synchronous belt 607, the first synchronous pulley 605 drives the grinding wheel 604 to rotate. Then, the second servo motor 603 is used to control the rotation of the mounting frame 601, so that the surface of the rotating grinding wheel 604 is in contact with the welding joint. As the welding joint is gradually thinned, the grinding wheel 604 gets closer to the workpiece 2, effectively controlling the distance between the grinding head and the workpiece 2 according to the thinning degree of the welding joint, and effectively improving the smoothness of the grinding of the welding joint.

[0030] Working principle: When in use, first, the two workpieces 2 to be welded are sequentially passed through the clamping cylinder 3, such that the welding position is located on the opposite sides of the clamping cylinder 3. Subsequently, the rotating rod 12 is rotated, such that the adjusting ring 11 rotates along the outer side of the clamping cylinder 3, and the clamping cylinder 3 drives the moving ring 403 to move along the clamping cylinder 3 towards the welding position. Since the inner diameter of the clamping cylinder 3 changes linearly, that is, the inner diameter of the clamping cylinder 3 gradually decreases from the direction of the servo motor one 9 to the welding position, and the clamping blocks 401 move along the inner wall of the clamping cylinder 3. As the inner diameter of the clamping cylinder 3 gradually decreases, the clamping blocks 401 approach each other, thereby strongly clamping the outer sides of the workpieces 2. The moving rod 402 moves along the sliding groove 10, and the end of the moving rod 402 moves inside the moving ring 403, such that the return spring 404 is stretched and elongated; Next, the servo motor one 9 is started to drive the gear 8 to rotate, thereby driving the toothed ring 7 to rotate, so as to control the clamping cylinder 3 to drive the workpiece 2 to rotate, such that the welding position rotates; Subsequently, the servo motor three 608 is used to drive the synchronous pulley two 606 to rotate. Under the action of the synchronous belt 607, the synchronous pulley one 605 drives the grinding wheel 604 to rotate. Then, the servo motor two 603 is used to control the mounting bracket 601 to rotate, such that the surface of the rotating grinding wheel 604 fits against the welding position. As the welding position gradually becomes thinner, the grinding wheel 604 approaches the workpiece 2 more closely.

[0031] In the description of this specification, the descriptions with reference to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0032] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A grinding device for a small diameter steel bar welded joint, comprising a support column (1), a workpiece (2) and a clamping cylinder (3), characterized in that: The support column (1), the workpiece (2) and the chuck (3) are all symmetrically arranged. The chuck (3) passes through the top end of the support column (1) respectively, and the chuck (3) is movably connected to the support column (1). A clamping mechanism (4) is arranged on the outside of the chuck (3). The workpiece (2) passes through the chuck (3) respectively, and the clamping mechanism (4) is movably connected to the workpiece (2). A support frame (5) is arranged on the outside of the support column (1), and a grinding mechanism (6) is arranged on the top end of the support frame (5). The grinding mechanism (6) is movably connected to the welding point of the workpiece (2).

2. The small diameter steel bar welding joint grinding device according to claim 1 is characterized in that: The outer side of the clamp (3) is fixedly connected to a gear ring (7), one side of the support column (1) is movably connected to a gear (8) via a rotating shaft, and the gear (8) is meshed with the gear ring (7), and one side of the support column (1) is fixedly connected to a servo motor (9), and the output end of the servo motor (9) is fixedly connected to the rotating shaft of the gear (8).

3. The small diameter steel bar welding joint grinding device according to claim 1 is characterized in that: The clamping mechanism (4) comprises a clamping block (401), a moving rod (402), a moving ring (403) and a return spring (404); the clamping block (401), the moving rod (402) and the return spring (404) are all distributed in a circular array; one end of the moving rod (402) is fixedly connected to the clamping block (401), and the other end of the moving rod (402) is movably connected to the inside of the moving ring (403); one end of the return spring (404) is fixedly connected to one end of the moving rod (402), and the other end of the return spring (404) is fixedly connected to the inside of the moving ring (403).

4. A small diameter steel bar welding joint grinding device according to claim 3, characterized in that: The movable ring (403) is sleeved on the outer side of the chuck (3), and the movable ring (403) is movably connected to the chuck (3). The clamping block (401) is located on the inner side of the chuck (3), and the clamping block (401) is movably connected to the outer side of the workpiece (2). The inner diameter of the chuck (3) changes linearly. A plurality of slide grooves (10) are opened on the wall of the chuck (3), and the slide grooves (10) are trapezoidal. The movable rods (402) respectively pass through the slide grooves (10), and the movable rods (402) are movably connected to the slide grooves (10).

5. The small diameter steel bar welding joint grinding device according to claim 4 is characterized in that: The outer side of the clamping cylinder (3) is threadedly connected with an adjusting ring (11), one end of the adjusting ring (11) is rotatably connected to one end of the moving ring (403), and the outer side of the adjusting ring (11) is fixedly connected with a plurality of rotating rods (12).

6. The small diameter steel bar welding joint grinding device according to claim 1 is characterized in that: The grinding mechanism (6) comprises a mounting frame (601), a rotating rod (602), a second servo motor (603) and a grinding wheel (604); the rotating rod (602) passes through one end of the mounting frame (601), and the rotating rod (602) is fixedly connected to the mounting frame (601); the rotating rod (602) passes through the top end of the support frame (5), and the rotating rod (602) is movably connected to the support frame (5); the second servo motor (603) is fixedly connected to the outer side of the support frame (5), and the output end of the second servo motor (603) is fixedly connected to one end of the rotating rod (602); the grinding wheel (604) is movably connected to the other end of the mounting frame (601) via a rotating shaft, and the surface of the grinding wheel (604) is in contact with the welding portion of the workpiece (2).

7. A small diameter steel bar weld joint grinding device according to claim 6, characterized in that: The grinding mechanism (6) further comprises a synchronous wheel 1 (605), a synchronous wheel 2 (606), a synchronous belt (607) and a servo motor 3 (608), wherein the synchronous wheel 1 (605) is fixedly connected to the outer side of the rotating shaft of the grinding wheel (604), the synchronous wheel 2 (606) is movably connected to one side of the mounting frame (601) via the rotating shaft, the synchronous belt (607) is sleeved on the outer sides of the synchronous wheel 1 (605) and the synchronous wheel 2 (606), and the synchronous wheel 1 (605), the synchronous wheel 2 (606) and the synchronous belt (607) constitute a belt transmission structure, the servo motor 3 (608) is fixedly connected to one side of the mounting frame (601), and the output end of the servo motor 3 (608) is fixedly connected to the rotating shaft of the synchronous wheel 2 (606).

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