Welding fixing tool for bent pipe

Abstract

The utility model provides a welding fixing tool for a bent pipe, and relates to the technical field of pipeline machining. The welding fixing tool for the bent pipe comprises a bottom plate, and two supporting frames are installed at the top of the bottom plate in a sliding mode. According to the welding fixing tool for the bent pipe, by arranging a moving structure, when a forward and reverse motor rotates in the forward direction, two first lead screws can be driven to rotate, so that a bent pipe body is driven to move horizontally, and then a first gear at one end of one first lead screw drives a second gear to rotate; a square strip drives one third gear to rotate so as to drive the other third gear to rotate in an engaged manner, so that two second chain wheels drive third chain wheels to rotate through a second chain so as to drive a second screw rod to rotate, and a T-shaped block drives an arc-shaped rubber pad to clamp, fix or loosen a bent pipe body; and only one power source needs to be arranged, so that the production cost of the device is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to a fixing tool, in particular to a welding fixing tool for bent pipes, belonging to the technical field of pipeline processing. Background Art

[0002] Pipes are used in various fields in people's lives. There are many types of pipes, such as straight pipes and bent pipes. Bent pipes are mostly used in automotive parts. The two ends of the bent pipes usually require punching and welding during the processing process. Punching and welding require fixing with a fixing device.

[0003] The publication number is CN208811631U, which is a pipe bending fixture. The fixture comprises a base, a pipe bending fixture seat is arranged above the base, a sliding mechanism is arranged between the pipe bending fixture seat and the base to facilitate the sliding of the pipe bending fixture seat, a pipe bending fixture groove is arranged at the top of the pipe bending fixture seat, and an ejection mechanism is arranged at the bottom of the pipe bending fixture seat to eject the pipe bending, the sliding mechanism comprises a cylinder arranged at one end of the base and a sliding seat connected to the cylinder through a cylinder shaft, a sliding groove is arranged on the base, a sliding block is arranged at the bottom of the sliding seat to slide along the sliding groove, and the pipe bending fixture seat and the sliding seat are detachably connected.

[0004] Although there are many benefits in the above scheme, there are also the following defects: 1. The movement of the bent pipe during punching and the ejection of the bent pipe after the punching are driven by two cylinders respectively, which leads to a high production cost of the device and reduces the practicality of the device; 2. The bent pipe fixing seat is fixed by bolts, which is troublesome to install and disassemble, and the use effect is not very good. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a welding fixing tool for bent pipes in order to solve the above-mentioned problems, so as to solve the problem that in the prior art, the movement when punching the bent pipe and the ejection of the bent pipe when the punching is completed are driven separately by two cylinders, resulting in a high production cost of the device and reducing the practicability of the device.

[0007] (II) Technical solution

[0008] The invention is realized through the following technical scheme: a welding fixing tool for bent pipes, comprising a base plate, wherein two support frames are slidably mounted on the top of the base plate, and a fixing frame is fixedly mounted on the top of the two support frames, and a moving structure is arranged on the top of the base plate, and the moving structure comprises two No. 1 fixing seats, and the two No. 1 fixing seats are fixedly mounted on the top of the base plate, and two No. 1 screw rods are rotatably mounted between the two No. 1 fixing seats, and the two support frames are both arranged on the outer sides of the two No. 1 screw rods and are connected to the two No. 1 screw rods by a nut pair, and one end of the two No. 1 screw rods passes through one of the No. 1 fixing seats and is fixedly mounted with a No. sprocket, and the outer sides of the two No. 1 sprockets are sleeved with a No. 1 chain, and the two No. 1 sprockets are connected through the No. 1 chain transmission, and a placing frame is fixedly mounted on one side of the No. 1 fixing seat, and a forward and reverse motor is fixedly mounted on one side of the placing frame, and the output end of the forward and reverse motor passes through the placing frame and is fixedly connected to one of the No. 1 sprockets, and the thread directions of the two No. 1 screw rods are the same.

[0009] Preferably, one end of one of the No. 1 screw rods passes through another No. 1 fixed seat and is fixedly installed with a No. 1 gear, the tops of the two No. 1 fixed seats are fixedly installed with a No. 2 fixed seat, one side of the two No. 2 fixed seats are rotatably installed with a rotating shaft, a square bar is fixedly installed between the two rotating shafts, one end of one of the rotating shafts passes through one of the No. 2 fixed seats and is fixedly installed with a No. 2 gear, and the No. 1 gear and the No. 2 gear are meshingly connected.

[0010] Preferably, both of the two support frames are provided with circular slots, and the square bar passes through the circular slots of the two support frames. The radius of the circular slot of the support frame is greater than the width of the square bar. The circular slot radius is set to be greater than the width of the square bar, which can effectively prevent the square bar from contacting the support frame during rotation and being blocked by the support frame.

[0011] Preferably, two No. 3 gears are rotatably installed between the two support frames, the square bar passes through one of the No. 3 gears and is in sliding contact with one of the No. 3 gears, and the two No. 3 gears are meshingly connected, so that when the square bar rotates, one of the No. 3 gears can be driven to rotate together, and when one of the No. 3 gears moves, it will not affect the rotation effect of the square bar on its transmission.

[0012] Preferably, two ends of the other No. 3 gear respectively pass through two supporting frames to fix a No. 2 sprocket on, a No. 2 screw rod is rotatably installed on the inner side of the fixing frame, and two ends of the No. 2 screw rod respectively pass through two fixing frames to fix a No. 3 sprocket on, the outer sides of the No. 2 sprocket and the No. 3 sprocket are sleeved with a No. 2 chain, the No. 2 sprocket and the No. 3 sprocket are connected through the No. 2 chain transmission, the outer side of the No. 2 screw rod is connected with a T-shaped block through a nut pair, the T-shaped block is arranged on the inner side of the fixing frame and is in sliding contact with the fixing frame, the fixing frame is provided with a square slide groove, one side of the T-shaped block is fixedly installed with an arc-shaped rubber pad through the square slide groove, one side of the fixing frame is fixedly installed with a fixed rubber pad, and a bent pipe body is placed between the arc-shaped rubber pad and the fixed rubber pad.

[0013] Preferably, a fixing structure is provided on both sides of the fixing frame, and the fixing structure includes two return springs, one end of the two return springs is fixedly installed on one side of the fixing frame, the other end of the two return springs is fixedly installed with a pull ring, and one end of the pull ring is fixedly installed with a limit block.

[0014] Preferably, square slide grooves are provided on both sides of the fixing frame, the two limit blocks are respectively arranged inside the two square slide grooves and in sliding contact with the fixing frame, and limit grooves are provided on both sides of the bent pipe fixing seat, and the limit blocks and limit grooves match each other.

[0015] The utility model provides a welding fixing tool for bent pipes, which has the following beneficial effects:

[0016] 1. The welding fixing fixture for the bent pipe is provided with a moving structure. When the forward and reverse motors rotate in the forward direction, the two No. 1 screw rods can be driven to rotate, thereby driving the bent pipe body to move horizontally, and then the No. 2 gear is driven to rotate by the No. 1 gear at one end of one of the No. 1 screw rods, and then the No. 3 gear is driven to rotate by the square bar to drive the other No. 3 gear to mesh and rotate, so that the two No. 2 sprockets drive the No. 3 sprocket to rotate through the No. 2 chain to drive the No. 2 screw rod to rotate, so that the arc rubber pad is driven to clamp or loosen the bent pipe body through the T-shaped block. Only one power source is required, which reduces the production cost of the device and improves the practicability of the device.

[0017] 2. The welding fixing tool for the bent pipe drives the two limit blocks to move out of the limit grooves on both sides of the bent pipe fixing seat by pulling the two pull rings respectively, thereby canceling the fixation of the bent pipe fixing seat, and then the bent pipe fixing seat is moved out, and a bent pipe fixing seat matching the bent pipe body to be welded is replaced, and the new bent pipe fixing seat is placed on the inner side of the fixing frame, and then the two pull rings are loosened. Under the elastic action of the reset spring, the limit blocks will be inserted into the limit grooves on both sides of the bent pipe fixing seat to fix it, thereby completing the installation, making the disassembly and assembly of the bent pipe fixing seat simple and easy to operate, making the device more convenient to use, and improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the mobile structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0021] Figure 4 It is a schematic diagram of the fixing structure of the utility model.

[0022]

Main component symbol description

[0023] 1. Bottom plate; 2. Support frame; 3. Fixed frame; 4. Bending pipe fixing seat; 5. Bending pipe body; 8. No. 1 fixing seat; 9. No. 1 screw rod; 10. No. 1 sprocket; 11. No. 1 chain; 12. Placement frame; 13. Forward and reverse motor; 14. No. 1 gear; 15. No. 2 gear; 16. No. 2 fixing seat; 17. Rotating shaft; 18. Square bar; 19. No. 3 gear; 20. No. 2 sprocket; 21. No. 2 chain; 22. No. 3 sprocket; 23. No. 2 screw rod; 24. T-block; 25. Arc rubber pad; 26. Fixed rubber pad; 27. Reset spring; 28. Pull ring; 29. ​​Limit block. DETAILED DESCRIPTION

[0024] The embodiment of the utility model provides a welding and fixing tool for bent pipes.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, including a base plate 1, two support frames 2 are slidably installed on the top of the base plate 1, and a fixed frame 3 is fixedly installed on the top of the two support frames 2. A mobile structure is arranged on the top of the base plate 1, and the mobile structure includes two No. 1 fixed seats 8, and the two No. 1 fixed seats 8 are fixedly installed on the top of the base plate 1. Two No. 1 screw rods 9 are rotatably installed between the two No. 1 fixed seats 8. The two support frames 2 are arranged on the outside of the two No. 1 screw rods 9 and are connected to the two No. 1 screw rods 9 through a nut pair. One end of the two No. 1 screw rods 9 passes through one of the No. 1 fixed seats 8 and is fixedly installed with a No. 1 sprocket 10. The outer sides of the two No. 1 sprockets 10 are sleeved with a No. 1 chain 11, and the two No. 1 sprockets 10 are connected by the No. 1 chain 11. A placement frame 12 is fixedly installed on one side of one of the No. 1 fixed seats 8, and a forward and reverse motor 13 is fixedly installed on one side of the placement frame 12. The output end of the forward and reverse motor 13 passes through the placement frame 12 and is fixedly connected to one of the No. 1 sprockets 10.

[0026] In this embodiment, one end of one of the No. 1 screw rods 9 passes through the other No. 1 fixed seat 8 and is fixedly installed with a No. 1 gear 14. A No. 2 fixed seat 16 is fixedly installed on the top of the two No. 1 fixed seats 8. A rotating shaft 17 is rotatably installed on one side of the two No. 2 fixed seats 16. A square bar 18 is fixedly installed between the two rotating shafts 17. One end of one of the rotating shafts 17 passes through one of the No. 2 fixed seats 16 and is fixedly installed with a No. 2 gear 15. The No. 1 gear 14 and the No. 2 gear 15 are meshingly connected.

[0027] In this embodiment, both support frames 2 are provided with circular notches, and the square bar 18 passes through the circular notches of the two support frames 2 . The radius of the circular notches of the support frames 2 is greater than the width of the square bar 18 .

[0028] In this embodiment, two No. 3 gears 19 are rotatably mounted between the two support frames 2 , the square bar 18 passes through one of the No. 3 gears 19 and is in sliding contact with one of the No. 3 gears 19 , and the two No. 3 gears 19 are meshed and connected.

[0029] In this embodiment, two ends of another No. 3 gear 19 respectively pass through two supporting frames 2 to fix a No. 2 sprocket 20, a No. 2 screw rod 23 is rotatably installed on the inner side of the fixing frame 3, and two ends of the No. 2 screw rod 23 respectively pass through two fixing frames 3 to fix a No. 3 sprocket 22, a No. 2 chain 21 is sleeved on the outer sides of the No. 2 sprocket 20 and the No. 3 sprocket 22, the No. 2 sprocket 20 and the No. 3 sprocket 22 are connected by the No. 2 chain 21, the outer side of the No. 2 screw rod 23 is connected with a T-shaped block 24 through a nut pair, the T-shaped block 24 is arranged on the inner side of the fixing frame 3 and is in sliding contact with the fixing frame 3, the fixing frame 3 is provided with a square slide groove, one side of the T-shaped block 24 is fixedly installed with an arc-shaped rubber pad 25 through the square slide groove, one side of the fixing frame 3 is fixedly installed with a fixed rubber pad 26, and a bent pipe body 5 is placed between the arc-shaped rubber pad 25 and the fixed rubber pad 26.

[0030] In this embodiment, a fixing structure is provided on both sides of the fixing frame 3, and the fixing structure includes two return springs 27, one end of the two return springs 27 is fixedly installed on one side of the fixing frame 3, and the other end of the two return springs 27 is fixedly installed with a pull ring 28, and one end of the pull ring 28 is fixedly installed with a limit block 29.

[0031] In this embodiment, first slide grooves are provided on both sides of the fixing frame 3, two limit blocks 29 are respectively arranged inside the two first slide grooves and in sliding contact with the fixing frame 3, and limit grooves are provided on both sides of the bent pipe fixing seat 4, and the limit blocks 29 match the limit grooves.

[0032] It should be noted that the utility model is a welding fixing tool for bent pipes. When in use, the bent pipe body 5 is placed between the arc rubber pad 25 and the fixed rubber pad 26, and then the forward and reverse motor 13 is started. The model of the forward and reverse motor 13 is not described in detail, and the adapter equipment shall prevail. The forward and reverse motor 13 will drive one of the No. 1 sprockets 10 to rotate, and then drive the other No. 1 sprocket 10 to rotate through the No. 1 chain 11, thereby driving the two No. 1 screw rods 9 to rotate, so that the two support frames 2 drive the bent pipe body 5 to move toward the punching welding position. During the movement, one of the No. 1 screw rods 9 will drive the No. 1 gear 14 to rotate, thereby driving the No. 2 gear 15 to mesh and rotate, and then drive the square bar 18 to rotate through the rotating shaft 17, so that one of the No. 3 gears 19 rotates, driving the other No. 3 gear The wheel 19 meshes and rotates, thereby driving the two No. 2 sprocket wheels 20 to rotate, and then the No. 3 sprocket wheel 22 is driven to rotate through the No. 2 chain 21, so that the No. 2 screw rod 23 rotates accordingly, thereby driving the T-shaped block 24 to move, and the T-shaped block 24 will drive the arc-shaped rubber pad 25 to move to one side to effectively fix the placed bent pipe body 5, and then after the punching and welding are completed, the forward and reverse motors 13 are started in the reverse direction. At this time, the two No. 1 screw rods 9 will rotate in the reverse direction to drive the two support frames 2 to move in the reverse direction, so that the two No. 3 gears 19 also rotate in the reverse direction, so that the No. 2 screw rod 23 rotates in the reverse direction to drive the T-shaped block 24 and the arc-shaped rubber pad 25 to move in the reverse direction to cancel the fixed state of the bent pipe body 5 after the punching and welding. Only one power source needs to be set, which reduces the production cost of the device and improves the practicality of the device;

[0033] When it is necessary to fix and weld the elbow body 5 with different radii, pull the two pull rings 28, and the two pull rings 28 will respectively drive the two limit blocks 29 to move out from the limit grooves on both sides of the elbow fixing seat 4, thereby canceling the fixation of the elbow fixing seat 4, and then move the elbow fixing seat 4 out, replace the elbow fixing seat 4 that matches the elbow body 5 to be welded, place the new elbow fixing seat 4 on the inner side of the fixing frame 3, and then release the two pull rings 28. Under the elastic action of the reset spring 27, the limit blocks 29 will be inserted into the limit grooves on both sides of the elbow fixing seat 4 to fix it, thereby completing the installation, making the disassembly and assembly of the elbow fixing seat 4 simple and easy to operate, making the device more convenient to use, and improving the use effect of the device.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A welding fixture for a bent pipe, comprising a base plate (1), characterized in that: Two support frames (2) are slidably mounted on the top of the bottom plate (1), a fixing frame (3) is fixedly mounted on the top of the two support frames (2), a bent pipe fixing seat (4) is placed inside the fixing frame (3), a moving structure is arranged on the top of the bottom plate (1), the moving structure comprises two No. 1 fixing seats (8), the two No. 1 fixing seats (8) are fixedly mounted on the top of the bottom plate (1), two No. 1 screw rods (9) are rotatably mounted between the two No. 1 fixing seats (8), the two support frames (2) are arranged on the outside of the two No. 1 screw rods (9) and are connected to the two No. 1 screw rods (9). The two first screw rods (9) are connected by a nut pair, one end of each of the two first screw rods (9) passes through one of the first fixing seats (8) and is fixedly mounted with a first sprocket (10), the outer sides of the two first sprockets (10) are sleeved with a first chain (11), the two first sprockets (10) are transmission-connected via the first chain (11), a placement rack (12) is fixedly mounted on one side of one of the first fixing seats (8), a forward and reverse motor (13) is fixedly mounted on one side of the placement rack (12), and an output end of the forward and reverse motor (13) passes through the placement rack (12) and is fixedly connected to one of the first sprockets (10).

2. The welding and fixing tool for bent pipes according to claim 1, characterized in that: One end of one of the first screw rods (9) passes through another first fixing seat (8) and is fixedly mounted with a first gear (14); a second fixing seat (16) is fixedly mounted on the top of each of the two first fixing seats (8); a rotating shaft (17) is rotatably mounted on one side of each of the two second fixing seats (16); a square bar (18) is fixedly mounted between the two rotating shafts (17); one end of one of the rotating shafts (17) passes through one of the second fixing seats (16) and is fixedly mounted with a second gear (15); the first gear (14) and the second gear (15) are meshingly connected.

3. The welding and fixing tool for bent pipes according to claim 2, characterized in that: The two support frames (2) are both provided with a circular notch, the square bar (18) passes through the circular notches of the two support frames (2), and the radius of the circular notch of the support frame (2) is greater than the width of the square bar (18).

4. The welding and fixing tool for bent pipes according to claim 3 is characterized in that: Two No. 3 gears (19) are rotatably mounted between the two support frames (2); the square bar (18) passes through one of the No. 3 gears (19) and is in sliding contact with one of the No. 3 gears (19); and the two No. 3 gears (19) are meshed and connected.

5. The welding and fixing tool for bent pipes according to claim 4 is characterized in that: The two ends of the other third gear (19) respectively penetrate the two support frames (2) and are fixedly mounted with a second sprocket (20); the inner side of the fixed frame (3) is rotatably mounted with a second screw rod (23); the two ends of the second screw rod (23) respectively penetrate the two fixed frames (3) and are fixedly mounted with a third sprocket (22); the outer sides of the second sprocket (20) and the third sprocket (22) are sleeved with a second chain (21); the second sprocket (20) and the third sprocket (22) are connected in transmission via the second chain (21). The outer side of the second screw rod (23) is connected to a T-shaped block (24) through a nut pair, the T-shaped block (24) is arranged on the inner side of the fixing frame (3) and is in sliding contact with the fixing frame (3), the fixing frame (3) is provided with a square slide groove, one side of the T-shaped block (24) is fixedly installed with an arc-shaped rubber pad (25) passing through the square slide groove, one side of the fixing frame (3) is fixedly installed with a fixed rubber pad (26), and a bent pipe body (5) is placed between the arc-shaped rubber pad (25) and the fixed rubber pad (26).

6. The welding and fixing tool for bent pipes according to claim 1, characterized in that: A fixing structure is provided on both sides of the fixing frame (3), and the fixing structure comprises two return springs (27), one end of the two return springs (27) is fixedly mounted on one side of the fixing frame (3), and a pull ring (28) is fixedly mounted on the other end of the two return springs (27), and a limit block (29) is fixedly mounted on one end of the pull ring (28).

7. The welding and fixing tool for bent pipes according to claim 6, characterized in that: Both sides of the fixing frame (3) are provided with first sliding grooves, the two limiting blocks (29) are respectively arranged inside the two first sliding grooves and in sliding contact with the fixing frame (3), and both sides of the bent pipe fixing seat (4) are provided with limiting grooves, and the limiting blocks (29) match the limiting grooves.

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