Alignment fixator for pipe machining

Abstract

The utility model discloses an alignment fixer for pipe processing, which comprises a base, a butt joint mechanism is arranged in the base, a fixing plate is arranged at the top of the butt joint mechanism, a cylinder is rotatably mounted in the fixing plate through a bearing, and fixing mechanisms are arranged at two ends of the cylinder. According to the alignment fixator for pipe machining, four pressing blocks can move close to each other or move away from each other by pushing a push rod, so that pipes with different diameters can be rapidly fixed, the working efficiency is improved, the central axes of the two fixed pipes can be consistent, and the alignment fixator for pipe machining is convenient to use and high in practicability. By starting the servo motor, the ends of the two fixed pipes can be in butt joint, the two butt-joint pipes can be driven to rotate by starting the two rotating motors, and therefore welding personnel can conveniently hold a welding gun to conduct welding at one position, the welding difficulty is lowered, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fixing, in particular to a positioning fixer for pipe processing. Background Art

[0002] In order to extend the length of the pipe, it is necessary to fix the two pipes with a fixture and align the ends of the two pipes. Then, a welding gun is manually held to complete the welding of the two pipe ends.

[0003] In the prior art, for example, the authorization publication number CN212470261U discloses a special welding device for pipes, including two symmetrically arranged workbenches, a plurality of support blocks are arranged at intervals along the left and right sides of the workbenches, an arc groove is formed inwardly at the top of the support block along the front and rear end directions, a corresponding arc-shaped rubber pad is arranged in the arc groove, and a positioning mechanism for clamping the pipe is symmetrically arranged at the front and rear ends of two adjacent support blocks on the same workbench, and an arc plate is also arranged on the connecting rod of the positioning mechanism, the arc plate is located above the connecting rod and the opening of the arc plate is arranged toward the pipe, a screw rod is arranged obliquely downward on the arc plate, the screw rod is threadedly connected to the arc plate, a pressure plate is arranged at the bottom of the screw rod, the pressure plate abuts against the side wall of the pipe, and a rotating handle is arranged at the bottom of the screw rod. The utility model clamps the pipe from multiple directions, improves the stability during welding, and then improves the welding quality and efficiency.

[0004] The above-mentioned authorized patent has the following problems:

[0005] It is necessary to use two telescopic devices to drive two connecting rods and two abutment plates to move closer to each other to clamp the two sides of the pipe, and then rotate the two rotating handles to make the two pressure plates fix the top of the pipe. The fixation is more troublesome, and the fixed pipe cannot be rotated. The operator needs to hold the welding gun and rotate and weld around the joint of the two pipes, which is not convenient to operate.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original positioning fixture for pipe processing. Utility Model Content

[0007] The purpose of the utility model is to provide a positioning fixture for pipe processing to solve the problems raised by the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for pipe processing, comprising a base, a docking mechanism is arranged inside the base, a fixing plate is arranged on the top of the docking mechanism, a cylinder is rotatably mounted inside the fixing plate through a bearing, fixing mechanisms are arranged at both ends of the cylinder, and a rotating mechanism is arranged on the outside of the cylinder;

[0009] Preferably, the docking mechanism includes an inner cavity, the inner cavity is opened inside the base, through grooves are opened on both sides of the top of the inner cavity, a first rotating shaft is rotatably installed inside the inner cavity, a movable block is arranged on the outer side of the first rotating shaft, the top of the movable block passes through the inside of the through groove and is fixedly connected to the bottom of the fixed plate, the end of the first rotating shaft passes through the inside of the base and a servo motor is fixed thereto, and the servo motor is fixedly installed on the outer wall of the base;

[0010] Preferably, the fixing mechanism includes a second rotating shaft, a second rotating shaft is rotatably installed on the outer side of the end of the cylinder, a threaded sleeve is provided on the outer side of the second rotating shaft and is located inside the cylinder, a clamping block is fixed to the end of the threaded sleeve, a guide rod is fixed to one side of the clamping block, the end of the guide rod passes through the interior of the cylinder, a movable ring is rotatably installed on the outer side of the cylinder through a bearing, a bevel gear is provided on the inner side of the movable ring, the center of the bevel gear is fixedly connected to the end of the second rotating shaft, and a push rod is fixed to the outer wall of the movable ring.

[0011] Preferably, the rotating mechanism includes a rotating motor, a rotating motor is fixed to the top of one side of the fixed plate, a full gear is fixed to the output end of the rotating motor, a hollow gear is meshed at the bottom of the full gear, and the inner wall of the hollow gear is fixedly connected to the outer wall of the cylinder.

[0012] Preferably, opposite threads are provided at both ends of the first rotating shaft inside the inner cavity, the first rotating shaft and the movable block are threadedly connected, two movable blocks are symmetrically distributed about the central axis of the inner cavity, and the bottom of the movable block fits with the bottom of the inner cavity.

[0013] Preferably, there are two fixing plates symmetrically distributed about the central axis of the cylinder.

[0014] Preferably, there are four bevel gears distributed at equal angles with respect to the central axis of the movable ring, and the four bevel gears are meshingly connected with the movable ring.

[0015] Preferably, the second rotating shaft and the threaded sleeve are threadedly connected, and the second rotating shaft and the threaded sleeve are distributed at equal angles with respect to the central axis of the cylinder, and the guide rod and the cylinder are slidably connected.

[0016] Preferably, the push rods are distributed at equal angles with respect to the central axis of the movable ring.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the alignment fixture for pipe processing can make the four clamping blocks move towards or away from each other by pushing the push rod, so that pipes of different diameters can be quickly fixed, which improves work efficiency, and can make the central axes of the two fixed pipes consistent, and by starting the servo motor, the ends of the two fixed pipes can be butted together, and starting the two rotating motors can drive the two butted pipes to rotate, which makes it convenient for welders to hold the welding gun and weld in one position, reduces the difficulty of welding, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the hollow gear in the utility model from a side view.

[0021] In the figure: 1. base; 2. docking mechanism; 21. inner cavity; 22. first rotating shaft; 23. through groove; 24. movable block; 25. servo motor; 3. fixed plate; 4. cylinder; 5. fixing mechanism; 51. second rotating shaft; 52. threaded sleeve; 53. clamping block; 54. guide rod; 55. bevel gear; 56. movable ring; 57. push rod; 6. rotating mechanism; 61. rotating motor; 62. full gear; 63. hollow gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a positioning fixture for pipe processing, comprising a base 1, a docking mechanism 2 is arranged inside the base 1, a fixing plate 3 is arranged on the top of the docking mechanism 2, a cylinder 4 is rotatably installed inside the fixing plate 3 through a bearing, fixing mechanisms 5 are arranged at both ends of the cylinder 4, and a rotating mechanism 6 is arranged on the outside of the cylinder 4;

[0024] The docking mechanism 2 includes an inner cavity 21. The inner cavity 21 is provided inside the base 1. Through grooves 23 are provided on both sides of the top of the inner cavity 21. A first rotating shaft 22 is rotatably installed inside the inner cavity 21. A movable block 24 is provided outside the first rotating shaft 22. The top of the movable block 24 passes through the inside of the through groove 23 and is fixedly connected to the bottom of the fixed plate 3. The end of the first rotating shaft 22 passes through the inside of the base 1 and is fixed with a servo motor 25. The servo motor 25 is fixedly installed on the outer wall of the base 1.

[0025] The fixing mechanism 5 includes a second rotating shaft 51, and the second rotating shaft 51 is rotatably installed on the outer side of the end of the cylinder 4. A threaded sleeve 52 is arranged on the outer side of the second rotating shaft 51 and located inside the cylinder 4. A clamping block 53 is fixed to the end of the threaded sleeve 52. A guide rod 54 is fixed to one side of the clamping block 53. The end of the guide rod 54 passes through the interior of the cylinder 4. A movable ring 56 is rotatably installed on the outer side of the cylinder 4 through a bearing. A bevel gear 55 is arranged on the inner side of the movable ring 56. The center of the bevel gear 55 is fixedly connected to the end of the second rotating shaft 51, and a push rod 57 is fixed to the outer wall of the movable ring 56.

[0026] The rotating mechanism 6 includes a rotating motor 61, which is fixed to the top of one side of the fixed plate 3, and a full gear 62 is fixed to the output end of the rotating motor 61. A hollow gear 63 is meshed with the bottom of the full gear 62, and the inner wall of the hollow gear 63 is fixedly connected to the outer wall of the cylinder 4.

[0027] The first rotating shaft 22 is provided with opposite threads at both ends inside the inner cavity 21, the first rotating shaft 22 and the movable block 24 are threadedly connected, two movable blocks 24 are symmetrically distributed about the central axis of the inner cavity 21, and the bottom of the movable block 24 fits with the bottom of the inner cavity 21, ensuring that when the first rotating shaft 22 rotates forward or reversely, the two movable blocks 24 can move towards each other or move away from each other.

[0028] There are two fixing plates 3 symmetrically distributed about the central axis of the cylinder 4 . The cylinder 4 can rotate stably under the support of the two fixing plates 3 .

[0029] There are four bevel gears 55 distributed at equal angles about the central axis of the movable ring 56 , and the four bevel gears 55 and the movable ring 56 are meshingly connected, ensuring that when the movable ring 56 rotates, the four bevel gears 55 can rotate simultaneously.

[0030] The second rotating shaft 51 and the threaded sleeve 52 are threadedly connected, and the second rotating shaft 51 and the threaded sleeve 52 are distributed at equal angles about the central axis of the cylinder 4, and the guide rod 54 and the cylinder 4 are slidably connected, ensuring that when the second rotating shaft 51 rotates, the threaded sleeve 52 can drive the clamping block 53 to move without rotation under the guidance of the guide rod 54.

[0031] The push rods 57 are distributed at equal angles with respect to the central axis of the movable ring 56 , so that the push rods 57 can drive the movable ring 56 to rotate.

[0032] Working principle: When using the alignment fixture for pipe processing, firstly, the pipe is passed through the inside of the cylinder 4, and then the push rod 57 is pushed, and then the push rod 57 drives the movable ring 56 to rotate, and at this time the movable ring 56 drives the four bevel gears 55 to rotate at the same time, and at the same time the four bevel gears 55 drive the four second rotating shafts 51 to rotate at the same time. Since the second rotating shaft 51 and the threaded sleeve 52 are threadedly connected, and the guide rod 54 and the cylinder 4 are slidably connected, the four threaded sleeves 52 and the four clamping blocks 53 move towards each other at the same time, so as to clamp and fix the pipe. According to the same operation as above, another pipe is clamped and fixed;

[0033] Then, the servo motor 25 is started, and then the servo motor 25 drives the first rotating shaft 22 to rotate. Since the first rotating shaft 22 is provided with opposite threads at both ends inside the inner cavity 21, and the first rotating shaft 22 and the movable block 24 are threadedly connected, and the movable blocks 24 are symmetrically distributed about the central axis of the inner cavity 21, the two movable blocks 24 move toward each other, and at the same time, the two pipes fixed above the movable blocks 24 move toward each other until the two pipes are butted together;

[0034] Then, the two rotating motors 61 are started at the same time, and then the two rotating motors 61 rotate through the two full gears 62 to drive the two hollow gears 63 to rotate, and then the two hollow gears 63 drive the two cylinders 4 to rotate, so that the two cylinders 4 drive the two pipes fixed inside to rotate, thereby facilitating welding for welders.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning fixture for pipe processing, comprising a base (1), characterized in that: A docking mechanism (2) is provided inside the base (1), a fixing plate (3) is provided on the top of the docking mechanism (2), a cylinder (4) is rotatably mounted inside the fixing plate (3) via a bearing, fixing mechanisms (5) are provided at both ends of the cylinder (4), and a rotating mechanism (6) is provided outside the cylinder (4); The docking mechanism (2) comprises an inner cavity (21), the inner cavity (21) is provided inside the base (1), through grooves (23) are provided on both sides of the top of the inner cavity (21), a first rotating shaft (22) is rotatably mounted inside the inner cavity (21), a movable block (24) is arranged outside the first rotating shaft (22), the top of the movable block (24) passes through the inside of the through groove (23) and is fixedly connected to the bottom of the fixed plate (3), the end of the first rotating shaft (22) passes through the inside of the base (1) and a servo motor (25) is fixedly mounted on the outer wall of the base (1); The fixing mechanism (5) comprises a second rotating shaft (51), the second rotating shaft (51) is rotatably mounted on the outer side of the end of the cylinder (4), a threaded sleeve (52) is arranged on the outer side of the second rotating shaft (51) and is located inside the cylinder (4), a pressing block (53) is fixed to the end of the threaded sleeve (52), a guide rod (54) is fixed to one side of the pressing block (53), the end of the guide rod (54) passes through the inside of the cylinder (4), a movable ring (56) is rotatably mounted on the outer side of the cylinder (4) via a bearing, a bevel gear (55) is arranged on the inner side of the movable ring (56), the center of the bevel gear (55) is fixedly connected to the end of the second rotating shaft (51), and a push rod (57) is fixed to the outer wall of the movable ring (56).

2. The positioning fixture for pipe processing according to claim 1, characterized in that: The rotating mechanism (6) comprises a rotating motor (61), the rotating motor (61) being fixed to the top of one side of the fixing plate (3), a full gear (62) being fixed to the output end of the rotating motor (61), a hollow gear (63) being meshed at the bottom of the full gear (62), and an inner wall of the hollow gear (63) being fixedly connected to an outer wall of the cylinder (4).

3. The positioning fixture for pipe processing according to claim 1, characterized in that: The first rotating shaft (22) is provided with opposite threads at both ends inside the inner cavity (21); the first rotating shaft (22) and the movable block (24) are threadedly connected; two movable blocks (24) are symmetrically distributed about the central axis of the inner cavity (21); and the bottom of the movable block (24) is in contact with the bottom of the inner cavity (21).

4. The positioning fixture for pipe processing according to claim 1, characterized in that: Two fixing plates (3) are symmetrically distributed about the central axis of the cylinder (4).

5. The positioning fixture for pipe processing according to claim 1, characterized in that: There are four bevel gears (55) distributed at equal angles with respect to the central axis of the movable ring (56), and the four bevel gears (55) and the movable ring (56) are meshingly connected.

6. The alignment fixture for pipe processing according to claim 1, characterized in that: The second rotating shaft (51) and the threaded sleeve (52) are threadedly connected, and the second rotating shaft (51) and the threaded sleeve (52) are distributed at equal angles with respect to the central axis of the cylinder (4), and the guide rod (54) and the cylinder (4) are slidably connected.

7. The alignment fixture for pipe processing according to claim 1, characterized in that: The push rods (57) are distributed at equal angles with respect to the central axis of the movable ring (56).

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