A hydraulic hose rapid positioning welding device

Abstract

This utility model belongs to the field of positioning welding equipment, specifically a rapid positioning welding device for hydraulic oil pipes. It includes a worktable with two feed slots on its top. Threaded sliders are slidably mounted on the inner walls of the bottom of each feed slot. Support bases are fixedly mounted on the tops of each threaded slider. Rotating bases are fixedly mounted on the inner sides of each support base. Positioning sleeves are rotatably mounted on the sides of each rotating base that are close to each other. Positioning chambers are formed on the sides of each positioning sleeve that are close to each other. This utility model ensures precise alignment of the axes of two hydraulic oil pipes, avoiding errors caused by manual alignment, guaranteeing welding sealing and pressure resistance. Furthermore, by using a feed servo motor to drive a positive and negative threaded ball screw, the two positioning sleeves and hydraulic oil pipes are brought closer together and abutted, eliminating the need for manual adjustment of the docking position, significantly reducing docking time, and greatly improving positioning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of positioning welding equipment technology, and in particular to a hydraulic oil pipe rapid positioning welding device. Background Technology

[0002] The hydraulic hose rapid positioning and welding device is an automated auxiliary device specifically designed for hose connections in hydraulic systems. Its core function is to quickly and accurately fix the axis, angle, and spacing of the hose to be welded through mechanical structure and positioning components, eliminating manual alignment deviations. It typically integrates positioning fixtures, angle adjustment modules, and clamping mechanisms, and some models include welding guide components. It can adapt to hoses of different diameters. During operation, the hose is first centered and clamped by the fixture, then the coaxiality is calibrated by the adjustment module, and finally the auxiliary welding equipment completes the butt welding. This significantly shortens the positioning time and ensures the sealing and pressure resistance of the weld. It is widely used in engineering machinery, hydraulic equipment maintenance, and mass production scenarios. However, existing equipment relies heavily on manual operation in the oil pipe positioning process. For example, adjusting the axis position of the two hydraulic oil pipes by manually holding the pipes or visually aligning them is susceptible to factors such as hand tremors, visual errors, and differences in experience. It is difficult to ensure that the axes of the two hydraulic oil pipes are completely aligned, often resulting in eccentric docking. This deviation directly leads to uneven fusion at the joint during welding, resulting in problems such as incomplete welds, missing welds, or inconsistent weld thickness. When the hydraulic system is in operation, the weld is prone to leakage and cracking due to uneven pressure, which seriously affects the sealing performance and service life of the hydraulic system. Furthermore, the docking process often requires manual adjustment of the distance and fit between the two oil pipes, such as adjusting the support structure one by one with bolts, manually pushing the oil pipes closer to the dock, or repeatedly trying and adjusting the fit of the joint, which greatly affects the alignment efficiency. Therefore, we propose a rapid positioning and welding device for hydraulic oil pipes to solve the above problems. Utility Model Content

[0003] To achieve the above objectives, the present invention adopts the following technical solution: A hydraulic hose rapid positioning welding device includes a worktable. Two feed slots are formed on the top of the worktable. Threaded sliders are slidably mounted on the inner bottom walls of both feed slots. Support bases are fixedly mounted on the tops of both threaded sliders. Rotating bases are fixedly mounted on the inner sides of both support bases. Positioning sleeves are rotatably mounted on the sides of both rotating bases that are close to each other. Positioning chambers are formed on the sides of both positioning sleeves that are close to each other. Four linkage discs are rotatably mounted on the inner sides of both positioning chambers. Six evenly distributed oblong holes are formed on one side of each linkage disc.

[0004] Specifically, a welding robotic arm is fixedly installed on one side of the workbench to facilitate the welding of two hydraulic oil pipes.

[0005] Specifically, the top of the workbench is provided with a lifting slot and two auxiliary slots. A lifting support is slidably installed on the inner side of the lifting slot. A synchronous cylinder is fixedly installed on the bottom inner wall of each of the two auxiliary slots. The parameters of the two synchronous cylinders are the same. The piston ends of the two synchronous cylinders are fixedly connected to the bottom of the same lifting support, so as to facilitate the lifting and lowering of the same lifting support by driving the two synchronous cylinders.

[0006] Specifically, a positive and negative thread ball screw is rotatably installed on one side of the inner wall of one of the two feed slots. The other end of the positive and negative thread ball screw extends into the other feed slot. Two threaded sliders are threadedly fitted onto the same positive and negative thread ball screw. Two dustproof silicone sleeves are fitted on the outer side of the positive and negative thread ball screw. The two ends of the two dustproof silicone sleeves abut against one side of the corresponding threaded slider and one side of the inner wall of the feed slot, respectively, to prevent welding slag from affecting the positive and negative thread ball screw during welding.

[0007] Specifically, the worktable has a motor slot inside, and a feed servo motor is fixedly installed on the inner side of the motor slot. The output shaft of the feed servo motor is fixedly connected to the forward and reverse toothed ball screw, so as to facilitate the use of the feed servo motor to drive the forward and reverse toothed ball screw to rotate.

[0008] Specifically, each of the two rotating bases has a drive slot inside, and a synchronous servo motor is fixedly installed on the inner side of each drive slot. The two synchronous servo motors have the same parameters, and the output shafts of the two synchronous servo motors are fixedly connected to the corresponding positioning sleeves, so that the corresponding positioning sleeves can be driven to rotate by the two synchronous servo motors respectively.

[0009] Specifically, worm gears are rotatably mounted on one inner wall of each of the two positioning chambers. Adjustment holes are opened at the top of each of the two positioning sleeves, and these holes are connected to their respective positioning chambers. Worms are rotatably mounted inside each adjustment hole, and hexagonal groove heads are fixedly mounted at the top of each worm. Each worm meshes with a corresponding worm gear. Drive shafts are rotatably mounted on one side of each of the two worm gears, and these drive shafts are fixedly mounted through four corresponding linkage discs. Stabilizing discs and guide discs are fixedly mounted on both sides of each of the eight linkage discs. The two drive shafts rotatably pass through the four corresponding stabilizing discs and guide discs, facilitating the rotation of the four corresponding linkage discs via the drive shafts.

[0010] Specifically, each of the eight stabilizing discs has six evenly distributed second guide grooves on one side near its corresponding linkage disc, and each of the eight guide discs has six evenly distributed first guide grooves on one side near its corresponding linkage disc. Linkage columns are slidably installed on the inner sides of the multiple second guide grooves, and extension brackets are slidably installed on the inner sides of the multiple first guide grooves. The other ends of the multiple linkage columns are fixedly connected to their respective extension brackets. The multiple linkage columns are slidably installed on the inner sides of their respective waist-shaped holes. One end of each of the multiple extension brackets extends out to a corresponding positioning sleeve. A supporting metal block is fixedly installed on one end of each of the multiple extension brackets extending out to the corresponding positioning sleeve. An anti-slip rubber pad is fixedly installed on one side of each of the multiple supporting metal blocks to enhance friction during internal support positioning and prevent hydraulic oil pipes from deflecting during the welding process.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a rapid positioning and welding device for hydraulic oil pipes. Through the setting of a worm gear, worm wheel, linkage disc, linkage column and extension bracket, the supporting metal block is driven to provide precise internal support for the inner wall of the oil pipe. With the help of the positioning sleeve, the two hydraulic oil pipes are driven to axially coincide, ensuring that the axes of the two hydraulic oil pipes are precisely aligned, avoiding the errors caused by manual alignment, and ensuring the welding sealing and pressure resistance.

[0012] This utility model discloses a hydraulic oil pipe rapid positioning and welding device. It uses a feed servo motor to drive a positive and negative toothed ball screw, which causes two positioning sleeves and hydraulic oil pipes to approach and abut against each other. It eliminates the need for manual adjustment of the docking position, greatly shortens the docking time, and significantly improves the positioning efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a hydraulic oil pipe rapid positioning and welding device proposed in this utility model; Figure 2 This is a three-dimensional cross-sectional view of a hydraulic oil pipe rapid positioning and welding device proposed in this utility model; Figure 3 This is a three-dimensional structural breakdown diagram of the threaded slider, support base, rotating base, and positioning sleeve of a hydraulic oil pipe rapid positioning welding device proposed in this utility model. Figure 4 This is a three-dimensional cross-sectional view of the positioning sleeve of a hydraulic oil pipe rapid positioning and welding device proposed in this utility model. Figure 5 This is a three-dimensional structural breakdown diagram of the drive shaft, linkage disc, linkage column, extension bracket, guide disc, stabilizing disc, supporting metal block, and anti-slip rubber pad of a hydraulic oil pipe rapid positioning welding device proposed in this utility model.

[0014] In the diagram: 1. Workbench; 2. Welding robotic arm; 3. Lifting support; 4. Synchronous cylinder; 5. Positive and negative toothed ball screw; 6. Dustproof silicone sleeve; 7. Feed servo motor; 8. Threaded slider; 9. Support base; 10. Rotating base; 11. Synchronous servo motor; 12. Positioning sleeve; 13. Worm gear; 14. Worm; 15. Hexagonal groove head; 16. Drive shaft; 17. Linkage plate; 18. Linkage column; 19. Extension bracket; 20. Guide plate; 21. Stabilizing plate; 22. Supporting metal block; 23. Anti-slip rubber pad. Detailed Implementation

[0015] Reference Figure 1-5 A hydraulic oil pipe rapid positioning welding device includes a worktable 1. The top of the worktable 1 has two feed slots. Threaded sliders 8 are slidably installed on the bottom inner walls of the two feed slots. Support bases 9 are fixedly installed on the top of the two threaded sliders 8. Rotating bases 10 are fixedly installed on the inner sides of the two support bases 9. Positioning sleeves 12 are rotatably installed on the side of the two rotating bases 10 that are close to each other. Positioning chambers are opened on the side of the two positioning sleeves 12 that are close to each other. Four linkage discs 17 are rotatably installed on the inner side of the two positioning chambers. Six evenly distributed waist-shaped holes are opened on one side of the eight linkage discs 17.

[0016] In this embodiment, a welding robotic arm 2 is fixedly installed on one side of the workbench 1 to facilitate welding of two hydraulic oil pipes.

[0017] In this embodiment, the top of the workbench 1 is provided with a lifting groove and two auxiliary grooves. A lifting support 3 is slidably installed on the inner side of the lifting groove. A synchronous cylinder 4 is fixedly installed on the bottom inner wall of each of the two auxiliary grooves. The parameters of the two synchronous cylinders 4 are the same. The piston ends of the two synchronous cylinders 4 are fixedly connected to the bottom of the same lifting support 3, so as to facilitate the lifting and lowering of the same lifting support 3 by driving the two synchronous cylinders 4.

[0018] In this embodiment, a positive and negative thread ball screw 5 is rotatably installed on one side inner wall of one of the two feed slots. The other end of the positive and negative thread ball screw 5 extends into the other feed slot. Two threaded sliders 8 are threadedly sleeved on the same positive and negative thread ball screw 5. Two dustproof silicone sleeves 6 are sleeved on the outside of the positive and negative thread ball screw 5. The two ends of the two dustproof silicone sleeves 6 respectively abut against one side of the corresponding threaded slider 8 and one side inner wall of the feed slot, so as to prevent welding slag during welding from affecting the positive and negative thread ball screw 5.

[0019] In this embodiment, a motor slot is provided inside the workbench 1, and a feed servo motor 7 is fixedly installed on the inner side of the motor slot. The output shaft of the feed servo motor 7 is fixedly connected to the forward and reverse toothed ball screw 5, so as to facilitate the use of the feed servo motor 7 to drive the forward and reverse toothed ball screw 5 to rotate.

[0020] In this embodiment, each of the two rotating bases 10 has a drive slot inside, and a synchronous servo motor 11 is fixedly installed on the inner side of each of the two drive slots. The parameters of the two synchronous servo motors 11 are the same, and the output shafts of the two synchronous servo motors 11 are fixedly connected to the corresponding positioning sleeves 12, so that the corresponding positioning sleeves 12 can be driven to rotate by the two synchronous servo motors 11 respectively.

[0021] In this embodiment, worm gears 13 are rotatably mounted on the inner wall of one side of each of the two positioning chambers. Adjustment holes are provided at the top of each of the two positioning sleeves 12, and these holes are connected to their respective positioning chambers. Worms 14 are rotatably mounted inside each of the two adjustment holes. Hexagonal groove heads 15 are fixedly mounted at the top of each of the two worm gears 14, and each worm gear 14 meshes with its corresponding worm gear 13. Drive shafts 16 are rotatably mounted on one side of each of the two worm gears 13. The two drive shafts 16 are fixedly mounted through the four corresponding linkage discs 17. Stabilizing discs 21 and guide discs 20 are fixedly mounted on both sides of each of the eight linkage discs 17. The two drive shafts 16 rotatably pass through the four corresponding stabilizing discs 21 and guide discs 20, facilitating the rotation of the four corresponding linkage discs 17 via the drive shafts 16.

[0022] In this embodiment, each of the eight stabilizing discs 21 has six evenly distributed second guide grooves on one side near the corresponding linkage disc 17, and each of the eight guide discs 20 has six evenly distributed first guide grooves on one side near the corresponding linkage disc 17. Linkage columns 18 are slidably installed on the inner side of each of the multiple second guide grooves, and extension brackets 19 are slidably installed on the inner side of each of the multiple first guide grooves. The other end of each of the multiple linkage columns 18 is fixedly connected to the corresponding extension bracket 19. Each of the multiple linkage columns 18 is slidably installed on the inner side of the corresponding waist-shaped hole. One end of each of the multiple extension brackets 19 extends out to a corresponding positioning sleeve 12. A supporting metal block 22 is fixedly installed on one end of each of the multiple extension brackets 19 extending out to the corresponding positioning sleeve 12. An anti-slip rubber pad 23 is fixedly installed on one side of each of the multiple supporting metal blocks 22 to enhance the friction during internal support positioning and prevent the hydraulic oil pipe from deflecting during the welding process.

[0023] Working principle: During the welding of hydraulic oil pipes, the operator places two hydraulic oil pipes onto the corresponding positioning sleeves 12. Then, using a hexagonal wrench, the hexagonal groove head 15 is rotated. This rotation drives the worm gear 14, which in turn drives the worm wheel 13. The worm wheel 13 then drives the drive shaft 16, which in turn drives multiple linkage discs 17. Each linkage disc 17 has six evenly distributed oblong holes on one side. These oblong holes rotate around the same drive shaft 16, thus moving the corresponding linkage column 18. Guide discs 20 and stabilizing discs 21 are located on both sides of each linkage disc 17. All guide discs 20 and stabilizing discs 21 are fixedly mounted on the same... Inside a positioning sleeve 12, multiple guide discs 20 have six evenly distributed first guide grooves on the side near the linkage disc 17, and multiple stabilizing discs 21 have six evenly distributed second guide grooves on the side near the linkage disc 17. One end of multiple linkage pins 18 is slidably installed in the corresponding second guide groove, and the other end of each linkage pin 18 is fixedly installed with an extension bracket 19. The extension brackets 19 are slidably installed in the corresponding first guide grooves, and one end of each extension bracket 19 is fixedly installed with a supporting metal block 22. The rotation of the multiple linkage discs 17 drives the corresponding six linkage pins 18 to move. The multiple linkage pins 18 are guided by the corresponding second guide grooves, and therefore can only move along the corresponding second guide grooves. The guide groove moves radially, thereby driving the corresponding extension brackets 19 to move radially. The movement of multiple extension brackets 19 drives the corresponding support metal blocks 22 to move. The multiple support metal blocks 22, together with the corresponding anti-slip rubber pads 23, abut against the inner wall of the hydraulic oil pipes, thereby providing internal support and positioning reference for the two hydraulic oil pipes. Since the axes of the two positioning sleeves 12 and their internal components are precisely aligned, the axes of the two hydraulic oil pipes that have completed internal support positioning are precisely aligned. Then, the operator starts the feed servo motor 7, which drives the forward and reverse thread ball screw 5 to rotate. The rotation of the forward and reverse thread ball screw 5 drives the two threaded sliders 8 to move closer to each other, thereby driving the two supports... The support base 9 and the corresponding positioning sleeve 12 move closer together. The two positioning sleeves 12 drive the corresponding hydraulic oil pipes to move closer together. After the two hydraulic oil pipes move closer together and touch each other, the feed servo motor 7 is turned off and the two synchronous cylinders 4 are started at the same time, which drive the same lifting support 3 to rise, providing support for the touching part of the two hydraulic oil pipes. The operator operates the welding robot arm 2 to weld the touching part of the two hydraulic oil pipes. After the welding on the front is completed, the two synchronous servo motors 11 are started. The two synchronous servo motors 11 start and drive the corresponding positioning sleeves 12 to rotate. The rotation of the two positioning sleeves 12 drives the corresponding hydraulic oil pipes to rotate synchronously, exposing the unwelded parts to facilitate welding by the welding robot arm 2.

[0024] The technological advancements achieved by this invention compared to existing technologies are as follows: it ensures precise alignment of the axes of the two hydraulic oil pipes, avoids errors caused by manual alignment, guarantees welding sealing and pressure resistance, and drives the positive and negative toothed ball screws 5 through the feed servo motor 7, causing the two positioning sleeves 12 and hydraulic oil pipes to approach and abut against each other, eliminating the need for manual adjustment of the docking position, greatly shortening the docking time, and significantly improving the positioning efficiency.

Claims

1. A rapid positioning and welding device for hydraulic oil pipes, characterized in that, The worktable (1) has two feed slots on its top. Threaded sliders (8) are slidably installed on the bottom inner walls of both feed slots. Support bases (9) are fixedly installed on the tops of both threaded sliders (8). Rotary bases (10) are fixedly installed on the inner sides of both support bases (9). Positioning sleeves (12) are rotatably installed on the sides of the two rotating bases (10) that are close to each other. The two positioning sleeves (12) are provided with positioning chambers on the side that are close to each other. Four linkage discs (17) are rotatably installed on the inner side of the two positioning chambers. Six evenly distributed waist-shaped holes are provided on one side of each of the eight linkage discs (17).

2. The hydraulic hose rapid positioning and welding device according to claim 1, characterized in that, A welding robotic arm (2) is fixedly installed on one side of the workbench (1).

3. The hydraulic hose rapid positioning and welding device according to claim 1, characterized in that, The top of the workbench (1) is provided with a lifting groove and two auxiliary grooves. A lifting support (3) is slidably installed on the inner side of the lifting groove. Synchronous cylinders (4) are fixedly installed on the bottom inner walls of the two auxiliary grooves. The parameters of the two synchronous cylinders (4) are the same. The piston ends of the two synchronous cylinders (4) are fixedly connected to the bottom of the same lifting support (3).

4. The hydraulic oil pipe rapid positioning and welding device according to claim 1, characterized in that, A positive and negative tooth ball screw (5) is rotatably installed on one side inner wall of one of the two feed slots. The other end of the positive and negative tooth ball screw (5) extends into the other feed slot. Two threaded sliders (8) are threaded on the same positive and negative tooth ball screw (5). Two dustproof silicone sleeves (6) are sleeved on the outside of the positive and negative tooth ball screw (5). The two ends of the two dustproof silicone sleeves (6) respectively abut against one side of the corresponding threaded slider (8) and one side inner wall of the feed slot.

5. A hydraulic hose rapid positioning and welding device according to claim 4, characterized in that, The worktable (1) has a motor slot inside, and a feed servo motor (7) is fixedly installed on the inner side of the motor slot. The output shaft of the feed servo motor (7) is fixedly connected to the forward and reverse toothed ball screw (5).

6. The hydraulic hose rapid positioning and welding device according to claim 1, characterized in that, Both rotating bases (10) have drive slots inside, and synchronous servo motors (11) are fixedly installed on the inner side of both drive slots. The parameters of the two synchronous servo motors (11) are the same, and the output shafts of the two synchronous servo motors (11) are fixedly connected to the corresponding positioning sleeves (12).

7. A hydraulic hose rapid positioning and welding device according to claim 6, characterized in that, A worm gear (13) is rotatably installed on one side of the inner wall of each of the two positioning chambers. An adjustment hole is opened on the top of each of the two positioning sleeves (12). The two adjustment holes are connected to the corresponding positioning chambers respectively. A worm (14) is rotatably installed on the inner side of each of the two adjustment holes. A hexagonal groove head (15) is fixedly installed on the top of each of the two worms (14). The two worms (14) mesh with the corresponding worm gear (13) respectively. A drive shaft (16) is rotatably installed on one side of each of the two worm gears (13). The two drive shafts (16) are fixedly inserted through the four corresponding linkage discs (17) respectively. A stabilizing disc (21) and a guide disc (20) are fixedly installed on both sides of each of the eight linkage discs (17). The two drive shafts (16) are rotatably inserted through the four corresponding stabilizing discs (21) and guide discs (20) respectively.

8. The hydraulic oil pipe rapid positioning and welding device according to claim 7, characterized in that, Each of the eight stabilizing discs (21) has six evenly distributed second guide grooves on one side of the corresponding linkage disc (17). Each of the eight guide discs (20) has six evenly distributed first guide grooves on one side of the corresponding linkage disc (17). Linkage columns (18) are slidably installed on the inner side of each of the multiple second guide grooves. Extension brackets (19) are slidably installed on the inner side of each of the multiple first guide grooves. The other end of each of the multiple linkage columns (18) is fixedly connected to the corresponding extension bracket (19). Each of the multiple linkage columns (18) is slidably installed on the inner side of the corresponding waist-shaped hole. One end of each of the multiple extension brackets (19) extends out of the corresponding positioning sleeve (12). One end of each of the multiple extension brackets (19) extending out of the corresponding positioning sleeve (12) is fixedly installed with a supporting metal block (22). One side of each of the multiple supporting metal blocks (22) is fixedly installed with an anti-slip rubber pad (23).

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