Pipeline welding seam polishing device

Abstract

The utility model relates to the technical field of hydraulic pipelines, and discloses a pipeline welding seam polishing device which comprises a machine shell, a motor is fixedly installed on the outer wall of the machine shell, a polishing wheel is rotatably connected to the inner wall of the machine shell, and the output end of the motor is fixedly connected with the polishing wheel. According to the pipeline welding seam polishing device, a threaded block moves downwards to be matched with a connecting rod and a sliding block, so that a swing rod can drive a rotating shaft to rotate downwards, the machine shell can be jacked up through a pulley, and the distance between a polishing wheel and a welding seam can be adjusted; and meanwhile, the machine shell can stably move on the outer wall of the hydraulic pipeline through guiding of the pulley, so that the grinding wheel can stably grind the welding seam of the hydraulic pipeline, and the grinding quality of the welding seam of the hydraulic pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pipelines, in particular to a pipeline weld grinding device. Background Art

[0002] Hydraulic pipes are basically divided into fluid pipes used in hydraulic systems and oil steel tube pipes, also known as honing pipes, while cold-drawn or cold-rolled precision seamless steel pipes also include hydraulic steel pipes.

[0003] Hydraulic pipelines are usually assembled by welding. After welding, the height of the welding slag on the weld surface is uneven, which affects the appearance. Therefore, after the hydraulic pipeline welding is completed, the staff needs to use a handheld grinder to grind the welding slag at the weld.

[0004] However, the structures of most handheld grinders on the market are too simple. The neatness of the weld after grinding depends entirely on the skills of the staff. Hydraulic pipes are usually cylindrical. It is difficult for handheld grinders to maintain balance during the grinding process, and it is easy for the weld to be ground unevenly, affecting the grinding quality of the hydraulic pipe weld. Utility Model Content

[0005] The utility model aims to provide a pipeline weld grinding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline weld grinding device, comprising a housing, a motor is fixedly installed on the outer wall of the housing, a grinding wheel is rotatably connected to the inner wall of the housing, the output end of the motor is fixedly connected to the grinding wheel, a grip is fixedly installed on the outer wall of the housing, a handle is fixedly installed on the outer wall of the housing, an adjustment mechanism for improving the grinding quality is provided on the outer wall of the housing, the thickness of the weld grinding can be freely selected by setting the adjustment mechanism, and the thickness of the weld after grinding can also be made uniform, and the adjustment mechanism comprises:

[0007] A rotating shaft, both ends of the rotating shaft are rotatably connected with a swing rod, one end of the swing rod away from the rotating shaft is hinged to the outer wall of the casing, the side wall of the swing rod is slidably connected with a slider, and two sets of pulleys are fixedly installed on the outer wall of the rotating shaft. The casing can be supported and guided by setting the pulleys, so that the casing can move smoothly on the outer wall of the hydraulic pipeline;

[0008] A screw rod, one end of which is rotatably connected to the inner wall of the housing, and the other end of which passes through the housing and is fixedly mounted with a knob;

[0009] A threaded block is slidably connected to the inner wall of the casing, and two sets of connecting rods are fixedly installed on the outer wall of the threaded block. One end of the connecting rod away from the threaded block is hinged to the side wall of the slider. The slider can be pushed and pulled reciprocally by arranging the threaded block to cooperate with the connecting rod.

[0010] Preferably, the screw rod is rotatably connected to a penetration point of the casing.

[0011] Preferably, the rotating shafts are provided in two groups, and the two groups of rotating shafts are mirror-imaged at two ends of the casing with the casing as the central axis.

[0012] Preferably, the inner wall of the threaded block is threadedly connected to the outer wall of the screw rod.

[0013] Preferably, an auxiliary mechanism is provided on the rotating shaft, and the auxiliary mechanism comprises a rotating drum, and the rotating drum is fixedly mounted on the outer wall of the rotating shaft.

[0014] Preferably, a plurality of groups of nylon bristles are fixedly mounted on the outer wall of the rotating drum. The nylon bristles can be used to clean the weld after being ground by the grinding wheel, so that the staff can observe the grinding quality of the welding seam by the grinding wheel conveniently.

[0015] Compared with the prior art, the utility model provides a pipeline weld grinding device having the following

[0016] Beneficial effects:

[0017] 1. The pipeline weld grinding device can make the swing rod drive the rotating shaft to rotate downward by moving the threaded block downward to cooperate with the connecting rod and the slider, so that the pulley can lift the casing, so that the distance between the grinding wheel and the weld can be adjusted, so that the thickness of the weld grinding can be freely selected, and at the same time, the casing can be smoothly moved on the outer wall of the hydraulic pipeline by guiding the pulley, so that the grinding wheel can smoothly grind the weld of the hydraulic pipeline, thereby improving the quality of the hydraulic pipeline weld grinding.

[0018] 2. The pipeline weld grinding device can drive the rotating shaft and the rotating drum to rotate by rolling the pulley on the outer wall of the hydraulic pipeline. At the same time, the welds after grinding by the grinding wheel can be cleaned with nylon bristles, which is convenient for the staff to observe the grinding quality of the grinding wheel on the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0021] Figure 3 It is a schematic diagram of the overall structure of the rotating shaft of the utility model;

[0022] Figure 4For this utility model Figure 1 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. casing; 2. motor; 3. grinding wheel; 4. grip; 5. handle; 6. adjustment mechanism; 61. rotating shaft; 62. screw rod; 63. threaded block; 64. rocker rod; 65. pulley; 66. connecting rod; 67. knob; 68. slider; 7. auxiliary mechanism; 71. rotating drum; 72. nylon bristles. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a pipeline weld grinding device, including a casing 1, a motor 2 is fixedly installed on the outer wall of the casing 1, and a grinding wheel 3 is rotatably connected to the inner wall of the casing 1. The grinding wheel 3 is driven by the motor 2 to rotate, so that the weld of the hydraulic pipeline can be ground, and the output end of the motor 2 is fixedly connected to the grinding wheel 3, and a handle 4 is fixedly installed on the outer wall of the casing 1. A handle 5 is fixedly installed on the outer wall of the casing 1, and the casing 1 can be pushed by the handle 4 and the handle 5, so that two sets of pulleys 65 can roll smoothly on the outer wall of the hydraulic pipeline, and the outer wall of the casing 1 is provided with an adjusting mechanism 6 for improving the grinding quality. By setting the adjusting mechanism 6, the thickness of the weld grinding can be freely selected, and the thickness of the weld after grinding can be made uniform.

[0025] The above-mentioned adjusting mechanism 6 includes a rotating shaft 61, a screw rod 62, a threaded block 63, a rocker rod 64, a pulley 65, a connecting rod 66, a knob 67, and a slider 68; both ends of the rotating shaft 61 are rotatably connected with the rocker rod 64, and one end of the rocker rod 64 away from the rotating shaft 61 is hinged to the outer wall of the casing 1, and the rotating shaft 61 is driven by the rocker rod 64 to rotate downward, and the casing 1 can be lifted up in cooperation with the pulley 65, so that the distance between the grinding wheel 3 and the weld can be adjusted. By adjusting the distance between the grinding wheel 3 and the weld, not only can the thickness of the weld to be ground freely be selected, but also the thickness of the weld after grinding can be made uniform. The rotating shaft 61 is provided with two groups, and the two groups of rotating shafts 61 are mirror-imaged at both ends of the casing 1 with the casing 1 as the central axis. The side wall of the rocker rod 64 is slidably connected with a slider 68, and the outer wall of the rotating shaft 61 is fixedly installed with two groups of pulleys 65. The pulley 65 can be used to make the casing 1 hydraulically The outer wall of the pipeline moves smoothly, improving the quality of the weld grinding by the grinding wheel 3. One end of the screw rod 62 is rotatably connected to the inner wall of the casing 1, and the other end of the screw rod 62 passes through the casing 1 and is fixedly installed with a knob 67. The screw rod 62 is rotatably connected to the penetration of the casing 1, and the screw rod 62 is rotated by the knob 67 to drive the threaded block 63 to slide downward on the inner wall of the casing 1. The threaded block 63 is slidably connected to the inner wall of the casing 1, and the inner wall of the threaded block 63 is threadedly connected to the outer wall of the screw rod 62. Two groups of connecting rods 66 are fixedly installed on the outer wall of the threaded block 63. One end of the connecting rod 66 away from the threaded block 63 is hinged on the side wall of the slider 68. The threaded block 63 slides downward to cooperate with the connecting rod 66 to push the slider 68, so that the slider 68 slides on the side wall of the swing rod 64 and squeezes the swing rod 64, so that the swing rod 64 drives the rotating shaft 61 to rotate downward and lifts the casing 1.

[0026] An auxiliary mechanism 7 is provided on the above-mentioned rotating shaft 61, and the auxiliary mechanism 7 includes a rotating drum 71 and nylon bristles 72; the rotating drum 71 is fixedly installed on the outer wall of the rotating shaft 61, and the pulley 65 will drive the rotating shaft 61 to rotate while rolling on the outer wall of the hydraulic pipeline, so that the rotating shaft 61 drives the rotating drum 71 to rotate, and a plurality of groups of nylon bristles 72 are fixedly installed on the outer wall of the rotating drum 71. Through the rotation of the rotating drum 71 and the nylon bristles 72, the weld after grinding by the grinding wheel 3 can be cleaned, so that the staff can observe the grinding quality of the welding seam by the grinding wheel 3 conveniently.

[0027] Working principle: Place the housing 1 as a whole at the weld of the hydraulic pipeline, and make the pulley 65 fit the outer wall of the hydraulic pipeline. Turn the screw 62 through the knob 67 to drive the threaded block 63 to slide downward on the inner wall of the housing 1. The threaded block 63 slides downward to cooperate with the connecting rod 66 to push the slider 68, so that the slider 68 slides on the side wall of the swing rod 64 and squeezes the swing rod 64, so that the swing rod 64 drives the rotating shaft 61 to rotate downward and lift the housing 1, so that the distance between the grinding wheel 3 and the weld of the hydraulic pipeline can be adjusted to a suitable distance. Then start the motor 2 to drive the grinding wheel 3 to rotate. At this time, the handle 4 and the handle 5 can be used to push the casing 1, so that the two sets of pulleys 65 can roll smoothly on the outer wall of the hydraulic pipe. The casing 1 can be moved smoothly on the outer wall of the hydraulic pipe by the guidance of the pulley 65, so that the grinding wheel 3 can grind the weld smoothly. At the same time, under the support of the two sets of pulleys 65, the distance between the grinding wheel 3 and the weld of the hydraulic pipe can be kept unchanged, so that the grinding thickness of the weld of the hydraulic pipe can be unified, and the uniformity of the welding of the grinding wheel 3 on the weld is improved.

[0028] When the pulley 65 rolls on the outer wall of the hydraulic pipe, it will drive the rotating shaft 61 to rotate, so that the rotating shaft 61 drives the rotating drum 71 to rotate. The rotation of the rotating drum 71 and the nylon bristles 72 can clean the weld after being ground by the grinding wheel 3, making it convenient for the staff to observe the grinding quality of the welding seam by the grinding wheel 3.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A pipeline weld grinding device, comprising a housing (1), characterized in that: The outer wall of the housing (1) is fixedly mounted with a motor (2); the inner wall of the housing (1) is rotatably connected with a grinding wheel (3); the output end of the motor (2) is fixedly connected with the grinding wheel (3); the outer wall of the housing (1) is fixedly mounted with a grip (4); the outer wall of the housing (1) is fixedly mounted with a handle (5); the outer wall of the housing (1) is provided with an adjustment mechanism (6) for improving the grinding quality, and the adjustment mechanism (6) comprises: A rotating shaft (61), both ends of the rotating shaft (61) are rotatably connected to a swing rod (64), one end of the swing rod (64) away from the rotating shaft (61) is hinged to the outer wall of the casing (1), a side wall of the swing rod (64) is slidably connected to a slider (68), and two sets of pulleys (65) are fixedly mounted on the outer wall of the rotating shaft (61); A screw rod (62), one end of the screw rod (62) being rotatably connected to the inner wall of the housing (1), and the other end of the screw rod (62) passing through the housing (1) and being fixedly mounted with a knob (67); A threaded block (63) is slidably connected to the inner wall of the housing (1), and two groups of connecting rods (66) are fixedly installed on the outer wall of the threaded block (63). One end of the connecting rod (66) away from the threaded block (63) is hinged to the side wall of the slider (68).

2. A pipeline weld grinding device according to claim 1, characterized in that: The screw rod (62) is rotatably connected to a penetration point of the housing (1).

3. A pipeline weld grinding device according to claim 1, characterized in that: The rotating shafts (61) are provided in two groups, and the two groups of rotating shafts (61) are arranged at two ends of the casing (1) in a mirror-image manner with the casing (1) as the central axis.

4. A pipeline weld grinding device according to claim 1, characterized in that: The inner wall of the threaded block (63) is threadedly connected to the outer wall of the screw rod (62).

5. A pipeline weld grinding device according to claim 1, characterized in that: An auxiliary mechanism (7) is arranged on the rotating shaft (61), and the auxiliary mechanism (7) comprises a rotating drum (71), and the rotating drum (71) is fixedly mounted on the outer wall of the rotating shaft (61).

6. A pipeline weld grinding device according to claim 5, characterized in that: A plurality of groups of nylon bristles (72) are fixedly mounted on the outer wall of the rotating drum (71).

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