A high-precision laser welding device with adjustable angle

Abstract

The present invention discloses a high-precision laser welding device with adjustable angle, and the present invention relates to the field of welding devices. The high-precision laser welding device with adjustable angle of the present invention includes a placement rack, sliding grooves that are annularly and evenly distributed on the surface of the placement rack, first fixed sleeves that are annularly and evenly distributed and fixedly connected below the placement rack, fixed columns that are slidably connected to the inner walls of the first fixed sleeves, first springs that are sleeved outside the fixed columns and the first fixed sleeves, and a support frame fixedly connected to the lower ends of multiple fixed columns. A positioning mechanism for clamping and positioning conical pipe fittings of different specifications is arranged inside the support frame; during the process of replacing circular pipes and conical pipes of different specifications for welding processing in the present invention, the position of the welding mechanism can be automatically adjusted, without additionally consuming time to adjust the welding mechanism, thereby improving the welding processing efficiency.

Description

Technical Field

[0001] The present invention relates to the field of welding devices, and particularly to a high-precision laser welding device with adjustable angle. Background Art

[0002] In pipeline welding, the butt welding of two pipelines is the most common connection method. Before that, it is necessary to clamp and position the two pipe fittings respectively, and the axes of the two pipe fittings need to coincide. For one conical pipe and the other circular pipe, during the welding process, when replacing different specifications of conical pipes and circular pipes for welding according to actual needs, it is necessary to spend time adjusting the two clamping mechanisms to adapt to clamping the circular pipe and the conical pipe, and then adjusting the movement of the welding head to place it at the welding joint between the circular pipe and the conical pipe, resulting in a relatively long time-consuming for the entire welding process and affecting the processing efficiency.

[0003] Therefore, it is very necessary to propose a high-precision laser welding device with adjustable angle to solve the above problems. Summary of the Invention

[0004] The main object of the present invention is to provide a high-precision laser welding device with adjustable angle, which can effectively solve the problems in the background art.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A high-precision laser welding device with adjustable angle, including a placement rack, a plurality of chutes uniformly distributed in a ring shape on the surface of the placement rack, a plurality of first fixed sleeves fixedly connected to the lower part of the placement rack and uniformly distributed in a ring shape, fixed columns slidably connected to the inner walls of the first fixed sleeves, a first spring sleeved outside the fixed columns and the first fixed sleeves, and a support frame fixedly connected to the lower ends of the plurality of fixed columns. A positioning mechanism for clamping and positioning conical pipe fittings of different specifications is arranged inside the support frame;

[0007] Above the placement rack, a ring rack is rotatably connected. A U-shaped column is fixedly connected to the surface of the ring rack away from the placement rack. One end of the inner side of the U-shaped column away from the ring rack is slidably connected to a lifting block. A cylinder is fixedly connected to the surface of the lifting block. A column groove is provided on the surface of the cylinder. A T-shaped column is slidably connected to the groove wall of the column groove. One end of the T-shaped column is fixedly connected to a second spring. The other end of the T-shaped column is fixedly connected to an arc-shaped block. A welding mechanism is arranged below the T-shaped column. One end of the T-shaped column near the second spring is fixedly connected to a first rack. A transmission gear is fitted and installed at one end of the cylinder surface away from the lifting block. A second rotating column is rotatably connected above the transmission gear. One end of the second rotating column away from the transmission gear is fitted and installed with the U-shaped column. A first rotating column is rotatably connected to one end of the cylinder surface away from the lifting block. The first rotating column is installed between the transmission gear and the second rotating column through torsion springs;

[0008] A vertical column is fixedly connected below the lifting block. A third spring is sleeved outside the vertical column. The lower end of the third spring is fixedly connected to an L-shaped column. The L-shaped column is slidably connected to the vertical column. Adjusting columns evenly distributed in a ring are fixedly connected to the outside of the placement rack. An adjusting block is fixedly connected to the surface of one of the adjusting columns. An installation groove is provided on the surface of the adjusting block. An adjusting mechanism for adjusting the rotation of the welding mechanism is arranged on the groove wall of the installation groove.

[0009] Preferably, a limiting rack is fixedly connected to the surface of the U-shaped column near the second rotating column. A plurality of tooth grooves are provided on the surface of the second rotating column away from the transmission gear. The tooth grooves are meshed and connected with the limiting rack.

[0010] Preferably, mounting frames evenly distributed in a ring are fixedly connected to the surface of the support frame. Third rotating columns are rotatably connected to one ends of the plurality of mounting frames away from the support frame. An inclined plate is fixedly connected to the lower end of the surface of the third rotating column. A fourth rotating column is installed at the upper end of the third rotating column through a torsion spring. A clamping block is rotatably connected to one end of the fourth rotating column away from the third rotating column.

[0011] Preferably, the positioning mechanism includes a cross plate fixedly connected to the inner side of the support frame. Strip-shaped grooves are symmetrically formed on the surface of the cross plate. The inner wall of the strip-shaped groove is slidably connected with a movable block. Connecting springs are symmetrically and fixedly connected to the surface of the movable block. A column is fixedly connected above the movable block. One end of the column away from the movable block is rotatably connected with an inclined column. The inner wall of the chute is slidably connected with a positioning block. One end of the first connecting column is rotatably connected below the positioning block. The other end of the first connecting column away from the positioning block is rotatably connected with a second connecting column. The other ends of the plurality of second connecting columns away from the first connecting column are rotatably connected with a second fixed sleeve. A support column is slidably connected to the inner wall of the second fixed sleeve. The lower end of the support column is fixedly connected to the cross plate. The upper end of the support column is fixedly connected with a support spring.

[0012] Preferably, the adjusting mechanism includes a first gear rotatably connected to the installation groove. The first gear is meshed with the annular rack. A second gear is meshed with the outside of the first gear. A third gear is meshed with the outside of the second gear. A fourth gear is meshed with the outside of the third gear. The second gear is rotatably connected with an adjusting block. A transmission column is fixedly connected below the fourth gear. The second gear and the third gear are both rotatably connected to the transmission column. The transmission column is slidably connected with a rotating sleeve below. The outside of the rotating sleeve is rotatably connected with a cylinder. An annular groove is formed on the outside of the cylinder. A convex column is fitted and installed on the inner wall of the annular groove. The convex column is fixedly connected with the placing rack. A first bevel gear is fixedly connected to the lower end of the rotating sleeve. A second bevel gear is fixedly connected to the lower end of the cylinder. The rotating sleeve is rotatably connected with the second bevel gear. A third bevel gear is meshed between the first bevel gear and the second bevel gear. A first motor is fixedly connected to the upper surface of the support frame. The output shaft of the first motor is fixedly connected with the third bevel gear.

[0013] Preferably, a plurality of balls are installed on the surface of the arc-shaped block away from the T-shaped column.

[0014] Preferably, the initial state of the first spring is a compressed state.

[0015] Preferably, limiting columns are symmetrically and fixedly connected to the surface of the movable block. The connecting spring is sleeved on the outside of the limiting column.

[0016] Preferably, a friction ring is fixedly connected below the transmission gear. The friction ring is fitted and installed with the cylinder.

[0017] Compared with the prior art, the present invention provides an angle-adjustable high-precision laser welding device, which has the following beneficial effects:

[0018] The angle-adjustable high-precision laser welding device, through the arc-shaped block, T-shaped column, second spring, lifting block and U-shaped column set, when the circular pipe is in rolling contact with the surface of the arc-shaped block and drives the arc-shaped block to move, under the action of its own gravity, the arc-shaped block and the welding mechanism can move downward. When the lower end of the arc-shaped block contacts the surface of the conical pipe, the movement of the arc-shaped block and the welding mechanism is limited. Then, the tooth groove cooperates with the limit rack to ensure the stability of the welding mechanism after position adjustment. And the welding mechanism moves along with the movement of the arc-shaped block and the T-shaped column. During the process of welding different specifications of circular pipes and conical pipes, the position of the welding mechanism can be automatically adjusted without consuming additional time to adjust the welding mechanism, thereby improving the welding processing efficiency.

[0019] The angle-adjustable high-precision laser welding device, through the column, inclined column and connecting spring set, when the placement rack and the conical pipe move downward, the positioning block contacts the end of the conical pipe inner wall close to the placement rack to position the placement of the conical pipe. Immediately afterwards, the inclined column will contact the conical pipe inner wall for clamping and positioning. Then, the circular pipe is placed between the four clamping blocks, and the four clamping blocks clamp and position the circular pipe to ensure that the axes of the circular pipe and the conical pipe coincide. By using the elasticity and flexibility of the connecting spring and the support spring, different specifications of conical pipes can be clamped and positioned during the process of the placement rack being adjusted to move downward. Since the third rotating column and the fourth spring are installed through a torsion spring, by using the elastic force of the torsion spring, different specifications of circular pipes can be placed and positioned without consuming time to adjust the clamping mechanism before clamping and positioning the circular pipe and the conical pipe, which can further improve the welding processing efficiency. Brief Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is of the present invention Figure 1 enlarged view at A1 in

[0022] Figure 3 is of the present invention Figure 1 enlarged view at A2 in

[0023] Figure 4 is of the present invention Figure 1 enlarged view at A3 in

[0024] Figure 5 is the partial structural schematic diagram of the support frame of the present invention;

[0025] Figure 6 is of the present invention Figure 5 enlarged view at B1 in

[0026] Figure 7is of the present invention Figure 5 Enlarged view at B2 in

[0027] Figure 8 is another perspective structural schematic diagram of the whole of the present invention;

[0028] Figure 9 is of the present invention Figure 8 Enlarged view at C1 in

[0029] Figure 10 is of the present invention Figure 8 Enlarged view at C2 in

[0030] Figure 11 is a partial structural schematic diagram of the arc-shaped block and the lifting block of the present invention;

[0031] Figure 12 is of the present invention Figure 11 Enlarged view at D in

[0032] Figure 13 is a partial structural schematic diagram of the annular groove and the cylinder of the present invention;

[0033] Figure 14 is a partial structural schematic diagram of the placement rack of the present invention.

[0034] In the figure: 1. Placement rack; 11. Slide groove; 12. First fixed sleeve; 13. Fixed column; 14. First spring; 15. Support frame; 2. Positioning mechanism; 21. Cross plate; 22. Strip-shaped groove; 23. Movable block; 24. Column; 25. Inclined column; 26. Positioning block; 27. First connecting column; 28. Second connecting column; 29. Second fixed sleeve; 210. Support column; 3. Annular rack; 4. U-shaped column; 5. Lifting block; 6. Cylinder; 7. Column groove; 8. Adjusting mechanism; 81. First gear; 82. Second gear; 83. Third gear; 84. Fourth gear; 85. Transmission column; 86. Rotating sleeve; 87. Cylinder; 88. Annular groove; 89. First bevel gear; 810. Second bevel gear; 9. T-shaped column; 10. Second spring; 101. Arc-shaped block; 102. Welding mechanism; 103. First rack; 104. Transmission gear; 105. Second rotating column; 106. First rotating column; 107. Vertical column; 108. Third spring; 109. L-shaped column; 1010. Adjusting column; 1011. Adjusting block; 1012. Installation groove; 1013. Tooth groove; 1014. Installation frame; 1015. Third rotating column; 1016. Inclined plate; 1017. Fourth rotating column. Detailed implementation manners

[0035] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0036] Please refer to Figures 1 to 14 , a high-precision laser welding device with adjustable angle, including a placement rack 1, sliding grooves 11 evenly distributed in a ring shape on the surface of the placement rack 1, first fixed sleeves 12 evenly distributed in a ring shape and fixedly connected below the placement rack 1, fixed columns 13 slidably connected to the inner walls of the first fixed sleeves 12, first springs 14 sleeved outside the fixed columns 13 and the first fixed sleeves 12, and a support frame 15 fixedly connected to the lower ends of multiple fixed columns 13. A positioning mechanism 2 for clamping and positioning tapered pipe fittings of different specifications is arranged inside the support frame 15;

[0037] A ring-shaped rack 3 is rotatably connected above the placement rack 1. A U-shaped column 4 is fixedly connected to the surface of the ring-shaped rack 3 away from the placement rack 1. A lifting block 5 is slidably connected to one end of the U-shaped column 4 away from the ring-shaped rack 3. A cylinder 6 is fixedly connected to the surface of the lifting block 5. A column groove 7 is opened on the surface of the cylinder 6. A T-shaped column 9 is slidably connected to the groove wall of the column groove 7. One end of the T-shaped column 9 is fixedly connected to a second spring 10. The other end of the T-shaped column 9 is fixedly connected to an arc-shaped block 101. A welding mechanism 102 is arranged below the T-shaped column 9. A first rack 103 is fixedly connected to one end of the T-shaped column 9 close to the second spring 10. A transmission gear 104 is fitted and installed at one end of the cylinder 6 away from the lifting block 5. A second rotating column 105 is rotatably connected above the transmission gear 104. One end of the second rotating column 105 away from the transmission gear 104 is fitted and installed with the U-shaped column 4. A first rotating column 106 is rotatably connected to one end of the cylinder 6 away from the lifting block 5. The first rotating column 106 is installed between the transmission gear 104 and the second rotating column 105 through torsion springs;

[0038] A vertical column 107 is fixedly connected below the lifting block 5. A third spring 108 is sleeved outside the vertical column 107. The lower end of the third spring 108 is fixedly connected to an L-shaped column 109. The L-shaped column 109 is slidably connected to the vertical column 107. Adjusting columns 1010 evenly distributed in a ring shape are fixedly connected to the outside of the placement rack 1. An adjusting block 1011 is fixedly connected to the surface of one of the adjusting columns 1010. An installation groove 1012 is opened on the surface of the adjusting block 1011. An adjusting mechanism 8 for adjusting the rotation of the welding mechanism 102 is arranged on the groove wall of the installation groove 1012.

[0039] A limit rack is fixedly connected to the surface of the U-shaped column 4 close to the second rotating column 105. A plurality of tooth grooves 1013 are opened at one end of the second rotating column 105 away from the transmission gear 104. The tooth grooves 1013 are meshed with the limit rack;

[0040] A friction ring is fixedly connected below the transmission gear 104. The friction ring is fitted and installed with the cylinder 6.

[0041] It should be noted that the limit rack engages with the tooth groove 1013, which can limit the positions of the lifting block 5, the cylinder 6, and the welding mechanism 102 after position adjustment. During the process of adjusting the contact between the circular tube and the conical tube, the circular tube will contact the balls on the surface of the arc-shaped block 101, driving the arc-shaped block 101 and the T-shaped column 9 to move in the direction of compressing the second spring 10. The welding mechanism 102 moves together with the T-shaped column 9. The first rack 103 engages with the transmission gear 104, driving the transmission gear 104 to rotate, and then driving the first rotating column 106 to rotate. The second rotating column 105 rotates together with the first rotating column 106, and the tooth groove 1013 separates from the limit rack. One of the torsion springs deforms, enabling the welding mechanism 102 to move under its own gravity. Due to the frictional force between the friction ring and the cylinder 6, the second rotating column 105 will not immediately return to its original position after being adjusted and rotated. After the lower end of the surface of the arc-shaped block 101 contacts the surface of the conical tube, the position of the welding mechanism 102 is limited after position adjustment. Then, the second rotating column 105 makes the tooth groove 1013 engage with the limit rack under the elastic force of the torsion spring, ensuring the stability of the welding mechanism 102 after position adjustment. During the process of welding different specifications of circular tubes and conical tubes, the position of the welding mechanism 102 can be automatically adjusted without consuming additional time to adjust the welding mechanism 102, thereby improving the welding processing efficiency;

[0042] It should be noted that after a welding process is completed, the welded pipe fittings are removed. As the first motor continues to drive the third bevel gear to rotate, under the elastic force of the second spring 10, the T-shaped column 9 and the arc-shaped block 101 can move away from the lifting block 5. During this period, the first rack 103 engages with the transmission gear 104, driving the transmission gear 104 to rotate, and the torsion spring deforms. The tooth groove 1013 provided on the surface of the second rotating column 105 does not separate from the limit rack. When the conical tube is placed again, the conical tube contacts the arc-shaped block 101, driving the arc-shaped block 101 to move. The first rack 103 moves together with the arc-shaped block 101 and the T-shaped column 9. The first rack 103 engages with the transmission gear 104, causing the tooth groove 1013 to separate from the limit rack. As the annular rack 3 rotates, the L-shaped column 109 contacts the adjusting block 1011 and moves upward along the slope provided on the surface of the adjusting block 1011 until it moves to the top of the adjusting block 1011. The second rotating column 105 returns to its original position under the elastic force of the torsion spring, avoiding affecting the next welding process;

[0043] It should be noted that during the process of the cylinder 87 rotating to drive the convex column to move upward, the pipe fittings that have completed the welding process can be removed, and the next conical pipe can be placed on the surface of the placement rack 1. During the downward movement of the convex column and the placement rack 1, the next circular pipe is placed between the four clamping blocks, and its lower end contacts the upper end of the conical pipe. The balls on the surface of the arc-shaped block 101 contact the surface of the circular pipe. For each rotation of the cylinder 87, the annular rack 3 can rotate two circles.

[0044] The surface of the support frame 15 is fixedly connected with mounting frames 1014 that are evenly distributed in a ring shape. One end of each of the multiple mounting frames 1014 away from the support frame 15 is rotatably connected with a third rotating column 1015. The lower end of the surface of the third rotating column 1015 is fixedly connected with an inclined plate 1016. The upper end of the third rotating column 1015 is installed with a fourth rotating column 1017 through a torsion spring. One end of the fourth rotating column 1017 away from the third rotating column 1015 is rotatably connected with a clamping block.

[0045] The positioning mechanism 2 includes a cross plate 21 fixedly connected to the inner side of the support frame 15. The surface of the cross plate 21 is symmetrically provided with strip-shaped grooves 22. The groove walls of the strip-shaped grooves 22 are slidably connected with movable blocks 23. The surfaces of the movable blocks 23 are symmetrically fixedly connected with connecting springs. An upright column 24 is fixedly connected above the movable blocks 23. One end of the upright column 24 away from the movable blocks 23 is rotatably connected with an inclined column 25. A positioning block 26 is slidably connected to the groove wall of the chute 11. A first connecting column 27 is rotatably connected below the positioning block 26. One end of the first connecting column 27 away from the positioning block 26 is rotatably connected with a second connecting column 28. One end of each of the multiple second connecting columns 28 away from the first connecting column 27 is rotatably connected with a second fixed sleeve 29. A support column 210 is slidably connected to the inner wall of the second fixed sleeve 29. The lower end of the support column 210 is fixedly connected with the cross plate 21, and the upper end of the support column 210 is fixedly connected with a support spring;

[0046] It should be noted that the positioning mechanism 2 can stably clamp and position conical tubes of different specifications, without the need to spend time adjusting the clamping mechanism before clamping and positioning the circular tube and the conical tube, which can further improve the welding processing efficiency. Specifically, during the process of the placement rack 1 being adjusted to move downward, relative movement occurs between the first fixed sleeve 12 and the fixed column 13, the first spring 14 is compressed, and relative movement occurs between the second fixed sleeve 29 and the placement rack 1. Due to the connection of the first connecting column 27 and the second connecting column 28, the four positioning blocks 26 can move away from each other. Immediately afterwards, the four positioning blocks 26 all come into contact with the inner wall of the conical tube to place and position the conical tube. As the conical tube and the placement rack 1 continue to move downward, relative movement occurs between the support column 210 and the second fixed sleeve 29, the support spring is compressed, and the inclined column 25 on the surface of the upright column 24 comes into contact with the inner wall of the conical tube to clamp and position the conical tube. The circular tube is placed from top to bottom, with the lower end opening of the circular tube in contact with the upper end opening of the conical tube. During the process of the placement rack 1 moving downward, the adjustment column 1010 comes into contact with the surface of the inclined plate 1016, driving the third rotating column 1015 and the fourth rotating column 1017 to rotate, so that multiple clamping blocks come into contact with the surface of the circular tube to clamp and position the circular tube, making the axis of the circular tube coincide with that of the conical tube, and then welding processing is carried out.

[0047] The adjustment mechanism 8 includes a first gear 81 rotatably connected to the installation groove 1012. The first gear 81 is meshed and connected with the annular rack 3. The outer side of the first gear 81 is meshed and connected with a second gear 82. The outer side of the second gear 82 is meshed and connected with a third gear 83. The outer side of the third gear 83 is meshed and connected with a fourth gear 84. The second gear 82 is rotatably connected to the adjustment block 1011. A transmission column 85 is fixedly connected below the fourth gear 84. Both the second gear 82 and the third gear 83 are rotatably connected to the transmission column 85. The lower part of the transmission column 85 is slidably connected with a rotating sleeve 86. The outer side of the rotating sleeve 86 is rotatably connected with a cylinder 87. An annular groove 88 is opened on the outer side of the cylinder 87. A convex column is installed in cooperation with the groove wall of the annular groove 88, and the convex column is fixedly connected with the placement rack 1. A first bevel gear 89 is fixedly connected to the lower end of the rotating sleeve 86. A second bevel gear 810 is fixedly connected to the lower end of the cylinder 87. The rotating sleeve 86 is rotatably connected with the second bevel gear 810. A third bevel gear is meshed between the first bevel gear 89 and the second bevel gear 810. A first motor is fixedly connected to the upper surface of the support frame 15, and the output shaft of the first motor is fixedly connected with the third bevel gear.

[0048] It should be noted that the setting of the adjustment mechanism 8 can adjust the rotation of the annular rack 3, the U-shaped column 4, and the welding mechanism 102 to weld the conical tube and the circular tube.

[0049] Specifically, the first motor drives the third bevel gear to rotate, thereby driving the first bevel gear 89 and the second bevel gear 810 to rotate simultaneously. The cylinder 87 and the fourth gear 84 are adjusted to rotate. A planetary gear reducer can be installed between the second bevel gear 810 and the cylinder 87, making the rotation speed of the cylinder 87 slow and the rotation speed of the fourth gear 84 fast. Driven by the third gear 83, the second gear 82, and the first gear 81, the annular rack 3 is driven to rotate. The annular groove 88 on the surface of the cylinder 87 cooperates with the convex column, thereby driving the placement rack 1 to move downward or upward. During the process of the placement rack 1 being adjusted to move downward, the adjustment block 1011 and the adjustment column 1010 both move downward with the placement rack 1. The first gear 81, the second gear 82, the third gear 83, the fourth gear 84, and the transmission column 85 all move downward. A relative movement is generated between the transmission column 85 and the rotating sleeve 86. The U-shaped column 4 rotates as the annular rack 3 rotates, thereby driving the cylinder 6, the T-shaped column 9, the arc-shaped block 101, and the welding mechanism 102 to rotate as the annular rack 3 rotates.

[0050] A plurality of balls are installed on the surface of the arc-shaped block 101 away from the T-shaped column 9;

[0051] It should be noted that the setting of the balls can reduce the friction between the arc-shaped block 101 and the circular tube. After the circular tube contacts the balls and the tooth groove 1013 is separated from the limit rack, the lifting block 5, the cylinder 6, and the T-shaped column 9 can move downward under their own gravity until the lower end of the surface of the arc-shaped block 101 contacts the surface of the conical tube, limiting the lifting block 5, the T-shaped column 9, and the cylinder 6. Then, the tooth groove 1013 provided on the surface of the second rotating column 105 meshes with the limit rack to further limit the welding mechanism 102, the cylinder 6, the lifting block 5, the T-shaped column 9, and the arc-shaped block 101.

[0052] The initial state of the first spring 14 is a compressed state;

[0053] It should be noted that the reaction force generated by the compression of the first spring 14 acts on the surface of the placement rack 1 to support the placement rack 1 and ensure the stability of the placement rack 1 during the adjusted movement.

[0054] Limit columns are symmetrically and fixedly connected to the surface of the movable block 23, and the connecting spring is sleeved outside the limit columns;

[0055] It should be noted that the setting of the limit columns can limit the movement of the column 24 during the adjusted movement of the column 24. When the end of the limit column away from the movable block 23 contacts the groove wall of the strip-shaped groove 22, the column 24 can no longer be adjusted to move along the direction of the adjustment groove, and the connecting spring is no longer compressed.

[0056] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision laser welding device with adjustable angle, comprising a placement rack (1), sliding grooves (11) evenly distributed in a ring shape on the surface of the placement rack (1), first fixed sleeves (12) evenly distributed in a ring shape and fixedly connected below the placement rack (1), fixed columns (13) slidably connected to the inner walls of the first fixed sleeves (12), first springs (14) sleeved on the outer sides of the fixed columns (13) and the first fixed sleeves (12), and a support frame (15) fixedly connected to the lower ends of multiple fixed columns (13), characterized in that: A positioning mechanism (2) for clamping and positioning tapered pipe fittings of different specifications is arranged inside the support frame (15); An annular rack (3) is rotatably connected above the placing rack (1). A U-shaped column (4) is fixedly connected to the surface of the annular rack (3) away from the placing rack (1). A lifting block (5) is slidably connected to one end of the U-shaped column (4) away from the annular rack (3). A cylinder (6) is fixedly connected to the surface of the lifting block (5). A column groove (7) is formed in the surface of the cylinder (6). A T-shaped column (9) is slidably connected to the groove wall of the column groove (7). One end of the T-shaped column (9) is fixedly connected to a second spring (10). The other end of the T-shaped column (9) is fixedly connected to an arc-shaped block (101). A welding mechanism (102) is arranged below the T-shaped column (9). A first rack (103) is fixedly connected to one end of the T-shaped column (9) close to the second spring (10). A transmission gear (104) is fitted and installed at one end of the cylinder (6) away from the lifting block (5). A second rotating column (105) is rotatably connected above the transmission gear (104). One end of the second rotating column (105) away from the transmission gear (104) is fitted and installed with the U-shaped column (4). A first rotating column (106) is rotatably connected to one end of the cylinder (6) away from the lifting block (5). The first rotating column (106) is installed between the transmission gear (104) and the second rotating column (105) through torsion springs; A vertical column (107) is fixedly connected below the lifting block (5). A third spring (108) is sleeved outside the vertical column (107). The lower end of the third spring (108) is fixedly connected to an L-shaped column (109). The L-shaped column (109) is slidably connected to the vertical column (107). Adjusting columns (1010) evenly distributed in a ring are fixedly connected to the outside of the placing rack (1). An adjusting block (1011) is fixedly connected to the surface of one of the adjusting columns (1010). An installation groove (1012) is formed in the surface of the adjusting block (1011). An adjusting mechanism (8) for adjusting the rotation of the welding mechanism (102) is arranged on the groove wall of the installation groove (1012).

2. The high-precision laser welding device with adjustable angle according to claim 1, wherein: A limit rack is fixedly connected to the surface of the U-shaped column (4) close to the second rotating column (105). A plurality of tooth grooves (1013) are formed in one end of the second rotating column (105) away from the transmission gear (104). The tooth grooves (1013) are meshed with the limit rack.

3. The high-precision laser welding device with adjustable angle according to claim 1, characterized in that: Installation frames (1014) evenly distributed in a ring are fixedly connected to the surface of the support frame (15). Third rotating columns (1015) are rotatably connected to one ends of the plurality of installation frames (1014) away from the support frame (15). An inclined plate (1016) is fixedly connected to the lower end of the surface of the third rotating column (1015). A fourth rotating column (1017) is installed on the upper end of the third rotating column (1015) through a torsion spring. A clamping block is rotatably connected to one end of the fourth rotating column (1017) away from the third rotating column (1015).

4. The high-precision laser welding device with adjustable angle according to claim 1, wherein: The positioning mechanism (2) includes a cross plate (21) fixedly connected to the inner side of the support frame (15). Strip-shaped grooves (22) are symmetrically formed on the surface of the cross plate (21). A movable block (23) is slidably connected to the groove wall of the strip-shaped groove (22). Connecting springs are symmetrically and fixedly connected to the surface of the movable block (23). A column (24) is fixedly connected above the movable block (23). An inclined column (25) is rotatably connected to one end of the column (24) away from the movable block (23). A positioning block (26) is slidably connected to the groove wall of the chute (11). A first connecting column (27) is rotatably connected to the lower side of the positioning block (26). A second connecting column (28) is rotatably connected to one end of the first connecting column (27) away from the positioning block (26). The second connecting columns (28) are rotatably connected to a second fixed sleeve (29) at one end away from the first connecting column (27). A support column (210) is slidably connected to the inner wall of the second fixed sleeve (29). The lower end of the support column (210) is fixedly connected to the cross plate (21). A support spring is fixedly connected to the upper end of the support column (210).

5. The high-precision laser welding device with adjustable angle according to claim 1, wherein: The adjusting mechanism (8) includes a first gear (81) rotatably connected to the installation groove (1012). The first gear (81) is meshed with the annular rack (3). A second gear (82) is meshed with the outside of the first gear (81). A third gear (83) is meshed with the outside of the second gear (82). A fourth gear (84) is meshed with the outside of the third gear (83). The second gear (82) is rotatably connected to the adjusting block (1011). A transmission column (85) is fixedly connected below the fourth gear (84). The second gear (82) and the third gear (83) are both rotatably connected to the transmission column (85). A rotating sleeve (86) is slidably connected below the transmission column (85). A cylinder (87) is rotatably connected to the outside of the rotating sleeve (86). An annular groove (88) is formed on the outside of the cylinder (87). A convex column is fitted and installed on the groove wall of the annular groove (88). The convex column is fixedly connected to the placing rack (1). A first bevel gear (89) is fixedly connected to the lower end of the rotating sleeve (86). A second bevel gear (810) is fixedly connected to the lower end of the cylinder (87). The rotating sleeve (86) is rotatably connected to the second bevel gear (810). A third bevel gear is meshed between the first bevel gear (89) and the second bevel gear (810). A first motor is fixedly connected to the upper surface of the support frame (15). The output shaft of the first motor is fixedly connected to the third bevel gear.

6. The high-precision laser welding device with adjustable angle according to claim 1, wherein: A plurality of balls are installed on the surface of the arc-shaped block (101) away from the T-shaped column (9).

7. The high-precision laser welding device with adjustable angle according to claim 1, wherein: The initial state of the first spring (14) is a compressed state.

8. The high-precision laser welding device with adjustable angle according to claim 4, wherein: Limit columns are symmetrically and fixedly connected to the surface of the movable block (23). The connecting spring is sleeved on the outside of the limit column.

9. The high-precision laser welding device with adjustable angle according to claim 1, wherein: A friction ring is fixedly connected below the transmission gear (104). The friction ring is fitted and installed with the cylinder (6).

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