A welding device for rotary drilling machine components

Abstract

The present invention relates to the field of rotary drilling rig drill bit processing, specifically a rotary drilling rig assembly welding device, including a base plate and a gantry fixedly connected to the top of the base plate, a drill bit fixing mechanism and a welding mechanism are installed on the top of the base plate, a rotation positioning mechanism is installed at the bottom of the horizontal section of the gantry, and an electric telescopic rod is installed on the drill bit fixing mechanism and the rotation positioning mechanism, and a blade mounting mechanism is commonly connected between the two electric telescopic rods. The present invention clamps and limits the left end of the spiral blade through an installation box and an elastic clamping assembly and ensures that the left ends of several spiral blades are aligned, drives the spacing adjustment assembly to operate through a driving motor to adjust the distance between the spiral blades, pushes the alignment plate to move to the left through a moving assembly to push and align the right end of the spiral blade, and finally uses an angle adjustment assembly to drive all the installation boxes to rotate synchronously, so that all the spiral blades can be adjusted to the required inclination angle for installation at one time.

Description

Technical Field

[0001] The invention relates to the technical field of rotary drilling machine drill bit processing, in particular to a rotary drilling machine component welding device. Background Art

[0002] A rotary drilling rig is a construction machine suitable for drilling holes in construction foundation projects. It is mainly used for drilling holes. A barrel drill bit is one of the commonly used drilling tools in a rotary drilling rig. It is mainly used for drilling holes under various geological conditions. A barrel drill bit usually consists of a drill body, spiral blades, and cutting edges. Welding is a very important step in manufacturing or repairing a barrel drill bit.

[0003] When welding the existing rotary drilling rig drill bit, it is necessary to first fix the drill bit, and then press the spiral blades onto the drill bit for welding, but the above welding method still has the following shortcomings: 1. Since the spiral blades are evenly distributed around the drill bit, it is necessary to control the angle of the circumferential distribution of the spiral blades when welding the spiral blades. When welding the spiral blades one by one, the consistency of the circumferential distribution angles of multiple spiral blades is difficult to ensure. When the angle adjustment operation is added, the overall welding efficiency will be reduced, and the overall time spent on the welding operation will increase; 2. There are multiple spiral blades arranged on the same side of the drill bit. These spiral blades need to be arranged in parallel with equal spacing when welding. When manual and one-by-one welding is adopted, the control of the distance between the spiral blades and the tightness and stability of the spiral blades on the drill bit body are all low, which will affect the welding quality and welding position accuracy of the spiral blades, and reduce the molding and use quality of the barrel drill bit. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a rotary drilling rig assembly welding device, comprising a base plate and a gantry fixedly connected to the top of the base plate, a drill bit fixing mechanism and a welding mechanism are installed on the top of the base plate, a rotation positioning mechanism is installed at the bottom of the horizontal section of the gantry, electric telescopic rods are installed on the drill bit fixing mechanism and the rotation positioning mechanism, and a blade mounting mechanism is commonly connected between the two electric telescopic rods.

[0005] The rotary positioning mechanism includes a mounting platform fixedly connected to the bottom of the horizontal section of the gantry, an annular guide rail 1 is fixedly installed at the bottom of the mounting platform and the top of the drill fixing mechanism, a slide seat 1 is circumferentially slidably installed on the annular guide rail 1, the electric telescopic rod is installed on the corresponding slide seat 1, and a positioning component for positioning the corresponding slide seat 1 is installed at the bottom of the annular guide rail 1 on the mounting platform.

[0006] The blade mounting mechanism includes an arc frame fixedly connected between the telescopic ends of two electric telescopic rods, a plurality of installation boxes equidistantly distributed up and down are provided at the left end of the arc frame, the right end and the rear end of the installation box are both open, a spacing adjustment component for adjusting the spacing between the installation boxes is installed at the left end of the arc frame, an elastic clamping component is installed at the top of the installation box, a limiting component is installed on the spacing adjustment component, an angle adjustment component for adjusting the inclination angle of the installation box is installed on the rear side of the spacing adjustment component, an alignment plate for aligning the spiral blades is provided at the right end of the arc frame, a moving component for pushing the alignment plate to rotate circumferentially around the drill fixing mechanism is installed on the arc frame, and a driving motor for driving the spacing adjustment component and the moving component to operate is installed on the arc frame.

[0007] In one possible implementation, the positioning assembly includes an annular groove at the bottom of an annular guide rail on the mounting table, a plurality of detachable positioning shells are evenly distributed circumferentially on the annular groove, the positioning shell and the annular guide rail are fixed by a threaded fixing bolt, a positioning block is slidably installed on the end of the positioning shell away from the center of the mounting table, a return spring is fixedly connected between the end of the positioning block close to the center of the mounting table and the positioning shell, a positioning sleeve that cooperates with the positioning block is fixedly connected to the side of the slide seat close to the center of the mounting table, and an angle line for angle indication is installed at the bottom of the annular guide rail.

[0008] In one possible implementation, the spacing adjustment component includes a guide groove frame fixedly connected to the left end of the arc frame, a plurality of sliders are evenly distributed up and down inside the guide groove frame, the lowest slider is fixedly installed at the bottom of the guide groove frame, and other sliders are installed inside the guide groove frame for sliding up and down, a lead screw is rotatably installed on the front side of the guide groove frame, a movable block is connected to the external thread of the lead screw, the rear end of the movable block is fixedly connected to the uppermost slider, the front sides of several of the sliders are commonly connected to a scissors frame, the scissors frame is rotatably connected to the front side of the slider, and the output shaft of the drive motor is fixedly connected to the lead screw.

[0009] In one possible implementation, the elastic clamping assembly includes a clamping plate that is slidably installed up and down inside the installation box, the top of the clamping plate is symmetrically fixedly connected with a guide rod, the guide rod is slidably installed on the installation box up and down, a return spring 2 is fixedly connected between the top of the clamping plate and the top wall of the installation box, and the right end of the clamping plate is tilted upward.

[0010] In one possible implementation, the limit assembly includes a limit block that is slidably installed on the guide groove frame and limits the uppermost sliding block. The limit block and the guide groove frame are fixed by two threaded fixing bolts. A height line for height indication is installed on the left side of the guide groove frame. A locking piece for fixing the movable block is also installed on the limit block.

[0011] In one possible implementation, the locking member includes a wedge block slidably installed left and right inside the limit block, a through hole is opened at the position of the lower end of the limit block corresponding to the wedge block, the left end of the bottom inclined surface of the wedge block is inclined upward, a return spring three is fixedly connected between the right side of the wedge block and the inner wall of the limit block, a push-pull key that slides through the limit block is fixedly connected to the front side of the wedge block, and a limit frame that cooperates with the wedge block is fixedly connected to the top of the movable block.

[0012] In a possible implementation, a shaft rod is fixedly connected to the front side of the installation box, and the shaft rod is rotatably mounted on the rear side of the corresponding sliding block.

[0013] In one possible implementation, the angle adjustment assembly includes a rotating rod rotatably connected to the rear side of the guide groove frame, the rear side of the slider is rotatably connected to a hollow worm gear through a fixedly connected support seat, the hollow worm gear is slidably installed on the outside of the rotating rod, the outside of the shaft is coaxially fixedly connected to a first worm gear, the hollow worm gear is meshed with the first worm gear, and a hand wheel is rotatably installed on the left side of the bottom end of the guide groove frame, and the hand wheel is transmission-connected to the rotating rod through a bevel gear set.

[0014] In one possible implementation, the moving assembly includes arc-shaped racks that are slidably installed left and right on the front sides of the upper and lower ends of the arc-shaped frame, and the upper and lower ends of the lead screw are coaxially fixedly connected with drive gears, and the drive gears are meshed with the corresponding arc-shaped racks. A connecting plate is fixedly connected between the right ends of the two arc-shaped racks, and a number of compression springs are fixedly connected between the connecting plate and the alignment plate.

[0015] In one possible implementation, the welding mechanism includes an annular guide rail 2 fixedly mounted on a base plate and coaxial with the drill bit fixing mechanism, a slide seat 2 is circumferentially slidably mounted on the annular guide rail 2, and a multi-dimensional welding robot arm for welding the rotary drill bit and the spiral blade is mounted on the top of the slide seat 2.

[0016] In a possible implementation, the upper and lower ends of the alignment plate are slidably mounted inside the corresponding arc-shaped rack, and a pressure strip for pressing the spiral blade is fixedly connected to the left side of the alignment plate.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention clamps and limits the left end of the spiral blade through the installation box and the elastic clamping assembly and ensures that the left ends of several spiral blades are aligned. The distance between the spiral blades is adjusted by driving the spacing adjustment assembly to operate through the driving motor, and the spiral blades can be adjusted up and down synchronously so that the spiral blades are arranged up and down with equal spacing. While adjusting the spacing of the spiral blades, the alignment plate is pushed to the left by the moving assembly to push and align the right end of the spiral blade. Finally, the angle adjustment assembly is used to drive all the installation boxes to rotate synchronously, so that all the spiral blades can be adjusted to the required inclination angle for installation at one time, thereby improving the tightness and stability of the spiral blades on the drill body, and then improving the welding quality and welding position accuracy of the spiral blades.

[0018] 2. The present invention indicates the angle of distribution of spiral blades around the rotary drilling bit through angle lines, then fixes the positioning shell to the indicated angle, and then rotates the slide seat 1 to adjust the position of the blade mounting mechanism, and uses the positioning assembly to limit the slide seat 1 in turn, so as to quickly and accurately position the blade mounting mechanism to the position on the surface of the rotary drilling bit where the spiral blades need to be welded, and when subsequently welding spiral blades on the rotary drilling bit of the same specification, there is no need to repeatedly measure the position and angle of the welded spiral blades, thereby improving the consistency of the circumferential distribution angles of multiple spiral blades, reducing the time spent on the overall welding operation, and improving the overall welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the drill bit fixing mechanism of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the blade mounting mechanism of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the rotation limiting mechanism of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the positioning component of the present invention.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the spacing adjustment component of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the installation box of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the elastic clamping assembly of the present invention.

[0027] Fig. 9It is a three-dimensional structural schematic diagram of the limiting component of the present invention.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the hollow worm of the present invention.

[0029] Fig.11 It is a three-dimensional structural schematic diagram of the mobile assembly of the present invention.

[0030] Fig.12 It is a schematic diagram of the three-dimensional structure of the alignment plate of the present invention.

[0031] In the figure: 1, bottom plate; 11, gantry; 2, drill bit fixing mechanism; 3, rotation positioning mechanism; 31, mounting table; 32, annular guide rail 1; 33, slide seat 1; 34, positioning assembly; 341, annular groove; 342, positioning shell; 343, fixing bolt 1; 344, positioning block; 345, reset spring 1; 346, positioning sleeve; 347, angle line; 4, electric telescopic rod; 5, blade matching mechanism; 51, arc frame; 52, spacing adjustment assembly; 521, guide groove frame; 522, slider; 523, lead screw; 524, movable block; 525, scissor frame; 53, mounting box; 531, shaft rod; 54, elastic clamping assembly; 541, clamping plate; 542, guide rod; 5 43. Reset spring 2; 55. Limiting assembly; 551. Limiting block; 552. Fixing bolt 2; 553. Height line; 554. Wedge block; 555. Reset spring 3; 556. Push-pull key; 557. Limiting frame; 56. Angle adjustment assembly; 561. Turn rod; 562. Hollow worm; 563. First worm gear; 564. Support seat; 565. Hand wheel; 57. Alignment plate; 571. Pressure strip; 58. Moving assembly; 581. Arc rack; 582. Driving gear; 583. Connecting plate; 584. Compression spring; 59. Driving motor; 6. Welding mechanism; 61. Annular guide rail 2; 62. Slide seat 2; 63. Multi-dimensional welding robot; 7. Rotary drill bit; 8. Spiral blade. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1 and Figure 2A rotary drilling rig assembly welding device comprises a base plate 1 and a gantry 11 fixedly connected to the top of the base plate 1, a drill fixing mechanism 2 and a welding mechanism 6 are installed on the top of the base plate 1, the drill fixing mechanism 2 is a four-jaw chuck, a rotation positioning mechanism 3 is installed at the bottom of the horizontal section of the gantry 11, an electric telescopic rod 4 is installed on the drill fixing mechanism 2 and the rotation positioning mechanism 3, and a blade mounting mechanism 5 is commonly connected between the two electric telescopic rods 4.

[0034] After the rotary drilling drill bit 7 is placed on the drill bit fixing mechanism 2, the drill bit fixing mechanism 2 is used to internally clamp and fix the rotary drilling drill bit 7 to prevent the drill bit fixing mechanism 2 from deflecting during the welding process, so as to improve the stability of the rotary drilling drill bit 7 during welding.

[0035] See also Figure 1 , Figure 3 and Figure 4 The rotating positioning mechanism 3 includes a mounting platform 31 fixedly connected to the bottom of the horizontal section of the gantry 11, and an annular guide rail 32 is fixedly installed at the bottom of the mounting platform 31 and the top of the drill fixing mechanism 2. A slide seat 33 is circumferentially slidably installed on the annular guide rail 32, and the electric telescopic rod 4 is installed on the corresponding slide seat 33. A positioning component 34 for positioning the corresponding slide seat 33 is installed at the bottom of the annular guide rail 32 on the mounting platform 31.

[0036] See also Figure 1 , Figure 3 , Figure 6 and Figure 7 The blade mounting mechanism 5 includes an arc frame 51 fixedly connected between the telescopic ends of the two electric telescopic rods 4, a plurality of installation boxes 53 equidistantly distributed up and down are arranged at the left end of the arc frame 51, the right end and the rear end of the installation box 53 are both open, a spacing adjustment component 52 for adjusting the spacing of the installation boxes 53 is installed at the left end of the arc frame 51, an elastic clamping component 54 is installed at the top of the installation box 53, a limiting component 55 is installed on the spacing adjustment component 52, an angle adjustment component 56 for adjusting the inclination angle of the installation box 53 is installed on the rear side of the spacing adjustment component 52, an alignment plate 57 for aligning the spiral blades 8 is arranged at the right end of the arc frame 51, a moving component 58 for pushing the alignment plate 57 to rotate circumferentially around the drill fixing mechanism 2 is installed on the arc frame 51, and a driving motor 59 for driving the spacing adjustment component 52 and the moving component 58 to operate is installed on the arc frame 51.

[0037] See also Figure 4 and Figure 5The positioning assembly 34 includes an annular groove 341 formed at the bottom of the annular guide rail 32 on the mounting platform 31, and a plurality of detachable positioning shells 342 are evenly distributed circumferentially on the annular groove 341. The positioning shell 342 and the annular guide rail 32 are fixed by a threaded fixing bolt 343. A positioning block 344 is slidably installed at one end of the positioning shell 342 away from the center of the mounting platform 31, and a return spring 345 is fixedly connected between the end of the positioning block 344 close to the center of the mounting platform 31 and the positioning shell 342. A positioning sleeve 346 matching the positioning block 344 is fixedly connected to the side of the slide seat 33 close to the center of the mounting platform 31, and an angle line 347 for angle indication is installed at the bottom of the annular guide rail 32.

[0038] The welding position of the spiral blade 8 on the rotary drilling bit 7 is accurately adjusted through the angle line 347. Specifically, the positioning shell 342 is first installed to the position indicated by the angle line 347, and then the fixing bolt 343 is rotated to fix the positioning shell 342, and then the slide 33 is slid along the annular guide rail 32 to adjust the position of the blade mounting mechanism 5. When the slide 33 moves to the positioning shell 342 at the indicated position, the positioning block 344 will first be pushed by the end of the positioning sleeve 346 and retracted into the interior of the positioning shell 342, and the reset spring 345 will be compressed. When the positioning sleeve 346 is aligned with the positioning shell 342, the rebound reset spring 345 can push the positioning block 344 to be inserted into the positioning sleeve 346, so as to facilitate the rapid positioning of the slide 33 and align the blade mounting mechanism 5 with the position on the rotary drilling bit 7 where the spiral blade 8 needs to be welded.

[0039] See also Figure 3 , Figure 6 and Figure 7 The spacing adjustment component 52 includes a guide groove frame 521 fixedly connected to the left end of the arc frame 51, and a plurality of sliders 522 are evenly distributed up and down inside the guide groove frame 521. The lowest slider 522 is fixedly installed at the bottom of the guide groove frame 521, and other sliders 522 are installed inside the guide groove frame 521 for sliding up and down. A lead screw 523 is rotatably installed on the front side of the guide groove frame 521, and a movable block 524 is connected to the external thread of the lead screw 523. The rear end of the movable block 524 is fixedly connected to the topmost slider 522, and the front sides of the plurality of sliders 522 are commonly connected to a scissor frame 525, and the scissor frame 525 is rotatably connected to the front side of the slider 522, and the output shaft of the drive motor 59 is fixedly connected to the lead screw 523.

[0040] The left end of the spiral blade 8 is inserted into the installation box 53 and contacts the inner wall of the left end of the installation box 53. The lead screw 523 is driven to rotate by the driving motor 59, so that the movable block 524 moves upward along the lead screw 523, and the movable block 524 is used to drive the uppermost slider 522 to move upward. Then, the uppermost slider 522 pulls the scissors frame 525 to unfold upward, and the scissors frame 525 drives other movable sliders 522 to move upward. The slider 522 drives the installation box 53 to move together, so that the installation box 53 can be moved upward at equal intervals, so that the spiral blades 8 are evenly distributed up and down, which is convenient for quickly adjusting the spacing between the spiral blades 8 and improving the welding efficiency.

[0041] See also Figure 7 and Figure 8 The elastic clamping assembly 54 includes a clamping plate 541 which is slidably installed inside the installation box 53. The top of the clamping plate 541 is symmetrically fixedly connected with a guide rod 542. The guide rod 542 is slidably installed on the installation box 53. A return spring 543 is fixedly connected between the top of the clamping plate 541 and the inner top wall of the installation box 53. The right end of the clamping plate 541 is tilted upward.

[0042] In the process of inserting the left end of the spiral blade 8 into the installation box 53, the right end of the clamping plate 541 tilted upward guides the left end of the spiral blade 8. As the left end of the spiral blade 8 is inserted, the clamping plate 541 is pushed upward and compresses the second return spring 543. Finally, the left end of the spiral blade 8 is completely inserted and pressed against the inner wall of the left end of the installation box 53. The clamping plate 541 is tightly attached to the spiral blade 8 under the rebound force of the second return spring 543, and the spiral blade 8 is clamped and fixed. The clamping plate 541 and the second return spring 543 can fix spiral blades 8 of different thicknesses, which is convenient for use when welding spiral blades 8 of different thicknesses.

[0043] See also Figure 6 , Figure 7 and Fig. 9 The limit assembly 55 includes a limit block 551 which is slidably installed on the guide groove frame 521 and limits the uppermost slider 522. The limit block 551 and the guide groove frame 521 are fixed by a threaded fixing bolt 552. A height line 553 for height indication is installed on the left side of the guide groove frame 521. A locking piece for fixing the movable block 524 is also installed on the limit block 551.

[0044] When in use, the spacing between two adjacent spiral blades 8 during welding is determined as needed, and then the total welding height of a vertical row of spiral blades 8 is calculated based on the number of spiral blades 8 in a vertical row and the size of a single spiral blade 8. The total welding height of the spiral blades 8 is indicated by the height line 553, and then the limit block 551 is slid to the height indicated by the height line 553, and then the fixing bolt 552 is rotated to fix the limit block 551. When the top slider 522 slides upward, the limit block 551 is used to block the slider 522 to facilitate accurate positioning of the slider 522.

[0045] See also Fig. 9 The locking member includes a wedge block 554 slidably installed inside the limit block 551, a through hole is opened at the position of the lower end of the limit block 551 corresponding to the wedge block 554, the left end of the bottom inclined surface of the wedge block 554 is inclined upward, a return spring 555 is fixedly connected between the right side of the wedge block 554 and the inner wall of the limit block 551, a push-pull key 556 that slides through the limit block 551 is fixedly connected to the front side of the wedge block 554, and a limit frame 557 that cooperates with the wedge block 554 is fixedly connected to the top of the movable block 524.

[0046] When the movable block 524 moves upward to contact the limit block 551, the limit frame 557 can be inserted into the limit block 551 through the through hole, and the wedge block 554 will first move to the right under the push of the limit frame 557 and squeeze the return spring three 555. When the limit frame 557 is aligned with the wedge block 554, the rebound force of the return spring three 555 is used to push the wedge block 554 to be inserted into the interior of the limit frame 557 for limiting. The movable block 524 can be quickly fixed to prevent the slider 522 from moving at will, thereby improving the stability of the spiral blade 8 during welding. When the lock is to be released, the push-pull key 556 is pushed to the right to separate the wedge block 554 from the limit frame 557, thereby releasing the fixation of the movable block 524 and allowing the movable block 524 to move downward.

[0047] See also Figure 6 , Figure 7 and Figure 8 The front side of the installation box 53 is fixedly connected with a shaft rod 531 , and the shaft rod 531 is rotatably installed on the rear side of the corresponding slider 522 .

[0048] See also Figure 6 , Figure 7 and Fig.10The angle adjustment assembly 56 includes a rotating rod 561 rotatably connected to the rear side of the guide groove frame 521, a hollow worm 562 is rotatably installed on the rear side of the slider 522 through a fixedly connected support seat 564, the hollow worm 562 is slidably installed on the outside of the rotating rod 561, a first worm gear 563 is coaxially fixedly connected to the outside of the shaft 531, the hollow worm 562 is meshed with the first worm gear 563, a hand wheel 565 is rotatably installed on the left side of the bottom end of the guide groove frame 521, and the hand wheel 565 is transmission-connected to the rotating rod 561 through a bevel gear set.

[0049] When the slider 522 moves upward, it can drive the first worm gear 563 and the hollow worm gear 562 to move upward as a whole along the rotating rod 561. When the slider 522 moves to the set position, the hand wheel 565 is rotated, and the hand wheel 565 drives the rotating rod 561 to rotate through the worm gear, and then the rotating rod 561 drives the first worm gear 563 to rotate through the hollow worm gear 562. Thereafter, the first worm gear 563 drives the shaft rod 531 and the mounting box 53 to rotate, so as to facilitate the simultaneous adjustment of the inclination angles of all the spiral blades 8 and improve the overall welding efficiency of the spiral blades 8.

[0050] See also Figure 3 and Fig.11 The moving component 58 includes arc-shaped racks 581 slidably installed left and right on the front sides of the upper and lower ends of the arc-shaped frame 51, and the upper and lower ends of the lead screw 523 are coaxially fixedly connected with driving gears 582, and the driving gear 582 is meshed with the corresponding arc-shaped racks 581. A connecting plate 583 is fixedly connected between the right ends of the two arc-shaped racks 581, and a plurality of compression springs 584 are fixedly connected between the connecting plate 583 and the alignment plate 57.

[0051] See also Fig.11 and Fig.12 The upper and lower ends of the alignment plate 57 are slidably mounted inside the corresponding arc-shaped rack 581 , and the left side of the alignment plate 57 is fixedly connected with a pressure strip 571 for pressing the spiral blade 8 .

[0052] When the driving motor 59 drives the lead screw 523 to rotate, the lead screw 523 can drive the driving gear 582 to rotate, and the driving gear 582 is used to drive the arc rack 581 and the connecting plate 583 to slide to the left. Then the connecting plate 583 pushes the alignment plate 57 to move to the left through the clamping spring 584 to push the right end of the spiral blade 8, so that the left end of the spiral blade 8 is pressed tightly against the mounting box 53, so that the left and right ends of several spiral blades 8 are aligned, thereby improving the neatness of the spiral blades 8 during welding. At the same time, the pressure strip 571 can press and limit the right end of the spiral blade 8 when the spiral blade 8 is attached to the rotary drill bit 7, thereby providing stability during welding of the spiral blade 8.

[0053] See also Figure 1 and Figure 2The welding mechanism 6 includes an annular guide rail 61 fixedly mounted on the base plate 1 and coaxial with the drill bit fixing mechanism 2. A slide seat 62 is circumferentially slidably mounted on the annular guide rail 61. A multidimensional welding robot 63 for welding the rotary drill bit 7 and the spiral blade 8 is mounted on the top of the slide seat 62. The annular guide rail 61, the slide seat 62 and the multidimensional welding robot 63 are all prior art.

[0054] The multi-dimensional welding robot 63 is driven by the second slide 62 to move around the second annular guide rail 61, so that the multi-dimensional welding robot 63 performs multi-angle welding on the spiral blade 8 from different directions.

[0055] See also Figure 1-Figure 12 During specific use, step one, determine the center angle between adjacent spiral blades 8 according to the number of spiral blades 8 distributed circumferentially around the rotary drill bit 7, and then evenly install the positioning shell 342 on the annular groove 341 circumferentially, so that the center angle between two adjacent positioning shells 342 is equal to the center angle between adjacent spiral blades 8, and then tighten the fixing bolt 343 to fix the positioning shell 342, and then place the rotary drill bit 7 on the drill bit fixing mechanism 2, and the rotary drill bit 7 is internally clamped by the drill bit fixing mechanism 2.

[0056] Step 2, rotate the slide 33 to align with one of the positioning shells 342, use the return spring 345 to push the positioning block 344 to insert into the positioning sleeve 346 to fix the slide 33, calculate the total height value of the spiral blade 8 welding according to the preset spacing between two adjacent spiral blades 8 during welding and the number of spiral blades 8 in a vertical row, then slide the limit block 551 to the total height value indicated on the height line 553, and then rotate the fixing bolt 2 552 to fix the limit block 551.

[0057] Step three, insert the left end of the spiral blade 8 into each installation box 53 in turn, drive the lead screw 523 to rotate by the driving motor 59, so that the movable block 524 moves upward along the lead screw 523, and the movable block 524 drives the uppermost slider 522 to move upward, and then the uppermost slider 522 pulls the scissors frame 525 to unfold upward, and then the scissors frame 525 drives other movable sliders 522 to move upward, and the slider 522 drives the installation box 53 to move together, so that the installation box 53 can be unfolded upward at equal intervals, so that the spiral blades 8 are evenly distributed up and down.

[0058] Step 4. When the lead screw 523 rotates, the drive gear 582 is driven to rotate by the lead screw 523, and the drive gear 582 is used to drive the arc rack 581 and the connecting plate 583 to slide to the left. Then the connecting plate 583 pushes the alignment plate 57 to move to the left through the compression spring 584 to push the right end of the spiral blade 8, and press the left end of the spiral blade 8 into the installation box 53, so as to align the spiral blade 8 and improve the neatness of the spiral blade 8 during welding.

[0059] Step 5. When the top slider 522 moves to the limit block 551, the limit frame 557 can be inserted into the limit block 551, and the wedge block 554 will first move to the right under the push of the limit frame 557. When the limit frame 557 is aligned with the wedge block 554, the rebound force of the return spring three 555 is used to push the wedge block 554 to be inserted into the interior of the limit frame 557 for limiting, so that the movable block 524 can be quickly fixed. At this time, the spacing between the spiral blades 8 reaches the preset value, and then the drive motor 59 is turned off.

[0060] Step six, rotate the handwheel 565, the handwheel 565 drives the rotating rod 561 to rotate through the bevel gear set, and then the rotating rod 561 drives the first worm gear 563 to rotate through the hollow worm 562, and then the first worm gear 563 drives the shaft 531 and the mounting box 53 to rotate, and the inclination angles of all spiral blades 8 are adjusted synchronously, and then the arc frame 51 is driven by the electric telescopic rod 4 to approach the rotary drilling bit 7, and the spiral blade 8 is pressed to the surface of the rotary drilling bit 7, and the spiral blade 8 is welded to the rotary drilling bit 7 by the multi-dimensional welding robot 63.

[0061] Step 7, after the welding of the rest of the spiral blade 8 except the two ends is completed, the electric telescopic rod 4 pushes the arc frame 51 away from the rotary drilling bit 7, and the welded spiral blade 8 will be detached from the installation box 53, and then the multi-dimensional welding robot 63 welds the two ends of the spiral blade 8, and then rotates the hand wheel 565 in the opposite direction, and then the hand wheel 565 drives the rotating rod 561 to rotate in the opposite direction, and the rotating rod 561 drives the shaft 531 and the installation box 53 to rotate in the opposite direction through the hollow worm 562 and the first worm gear 563, and the installation box 53 is rotated to a horizontal state, and the movable block 524 is unlocked by pushing the push-pull key 556 to move right, and the lead screw 523 is driven by the driving motor 59 to rotate in the opposite direction, so that the movable block 524 drives the uppermost slider 522 to move downward to the initial state, and at the same time, the lead screw 523 drives the driving gear 582 to rotate in the opposite direction, and then the driving gear 582 drives the arc rack 581 to move right, so that the connecting plate 583 drives the alignment plate 57 to move right and reset.

[0062] Step 8: Push the positioning block 344 toward the center of the mounting platform 31 to release the restriction on the slide 33, then rotate the slide 33 to limit it with the next positioning shell 342, and then repeat steps 3, 4, 5, 6, and 7 to weld the subsequent spiral blades 8.

[0063] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary drilling machine assembly welding device, comprising a base plate (1) and a gantry (11) fixedly connected to the top of the base plate (1), characterized in that: A drill bit fixing mechanism (2) and a welding mechanism (6) are installed on the top of the base plate (1); a rotation positioning mechanism (3) is installed on the bottom of the horizontal section of the gantry (11); electric telescopic rods (4) are installed on both the drill bit fixing mechanism (2) and the rotation positioning mechanism (3); and a blade mounting mechanism (5) is commonly connected between the two electric telescopic rods (4); The rotary positioning mechanism (3) comprises a mounting platform (31) fixedly connected to the bottom of the horizontal section of the gantry (11); an annular guide rail (32) is fixedly mounted on the bottom of the mounting platform (31) and the top of the drill bit fixing mechanism (2); a slide seat (33) is circumferentially slidably mounted on the annular guide rail (32); the electric telescopic rod (4) is mounted on the corresponding slide seat (33); and a positioning component (34) for positioning the corresponding slide seat (33) is mounted on the bottom of the annular guide rail (32) on the mounting platform (31); The blade mounting mechanism (5) comprises an arc frame (51) fixedly connected between the telescopic ends of two electric telescopic rods (4); a plurality of mounting boxes (53) equidistantly distributed vertically are arranged at the left end of the arc frame (51); the right end and the rear end of the mounting boxes (53) are both open; a spacing adjustment component (52) for adjusting the spacing of the mounting boxes (53) is installed at the left end of the arc frame (51); an elastic clamping component (54) is installed on the top of the mounting box (53); and a limit position component (54) is installed on the spacing adjustment component (52). The arc frame (51) is provided with an angle adjustment component (56) for adjusting the tilt angle of the mounting box (53), the right end of the arc frame (51) is provided with an alignment plate (57) for aligning the spiral blades (8), the arc frame (51) is provided with a moving component (58) for driving the alignment plate (57) to rotate around the drill bit fixing mechanism (2), and the arc frame (51) is provided with a driving motor (59) for driving the spacing adjustment component (52) and the moving component (58) to operate.

2. A rotary drilling machine component welding device according to claim 1, characterized in that: The positioning assembly (34) comprises an annular groove (341) formed at the bottom of an annular guide rail (32) on the mounting platform (31); a plurality of detachably mounted positioning housings (342) are evenly distributed circumferentially on the annular groove (341); the positioning housings (342) and the annular guide rail (32) are fixed by threaded fixing bolts (343); a positioning block (344) is slidably mounted on one end of the positioning housing (342) away from the center of the mounting platform (31); a return spring (345) is fixedly connected between the end of the positioning block (344) close to the center of the mounting platform (31) and the positioning housing (342); a positioning sleeve (346) matching the positioning block (344) is fixedly connected to one side of the slide seat (33) close to the center of the mounting platform (31); and an angle line (347) for indicating an angle is mounted on the bottom of the annular guide rail (32).

3. A rotary drilling machine component welding device according to claim 1, characterized in that: The spacing adjustment component (52) comprises a guide slot frame (521) fixedly connected to the left end of the arc-shaped frame (51); a plurality of sliders (522) are equidistantly distributed in the upper and lower parts of the guide slot frame (521); the lowest slider (522) is fixedly mounted at the bottom of the guide slot frame (521); the other sliders (522) are slidably mounted in the upper and lower parts of the guide slot frame (521); a lead screw (523) is rotatably mounted on the front side of the guide slot frame (521); a movable block (524) is threadedly connected to the outer side of the lead screw (523); a rear end of the movable block (524) is fixedly connected to the uppermost slider (522); a scissor frame (525) is commonly connected to the front sides of the plurality of sliders (522); the scissor frame (525) is rotatably connected to the front side of the slider (522); and an output shaft of the drive motor (59) is fixedly connected to the lead screw (523).

4. A rotary drilling machine component welding device according to claim 1, characterized in that: The elastic clamping assembly (54) comprises a clamping plate (541) slidably mounted in an upward and downward direction inside the installation box (53); a guide rod (542) is symmetrically fixedly connected to the top of the clamping plate (541); the guide rod (542) is slidably mounted on the installation box (53) in an upward and downward direction; a second return spring (543) is fixedly connected between the top of the clamping plate (541) and the top wall of the installation box (53); and the right end of the clamping plate (541) is tilted upward.

5. A rotary drilling machine component welding device according to claim 3, characterized in that: The limiting assembly (55) comprises a limiting block (551) which is slidably mounted on the guide slot frame (521) and limits the uppermost slider (522); the limiting block (551) and the guide slot frame (521) are fixed by a second fixing bolt (552) which is threadedly connected; a height line (553) for indicating the height is mounted on the left side of the guide slot frame (521); and a locking piece for fixing the movable block (524) is also mounted on the limiting block (551); The locking member comprises a wedge block (554) slidably installed inside the limit block (551) to the left and right, a through hole is opened at the lower end of the limit block (551) at a position corresponding to the wedge block (554), the left end of the bottom inclined surface of the wedge block (554) is inclined upward, a return spring three (555) is fixedly connected between the right side of the wedge block (554) and the inner wall of the limit block (551), a push-pull key (556) that slides through the limit block (551) is fixedly connected to the front side of the wedge block (554), and a limit frame (557) that matches the wedge block (554) is fixedly connected to the top of the movable block (524).

6. A rotary drilling machine component welding device according to claim 3, characterized in that: The front side of the installation box (53) is fixedly connected to a shaft rod (531), and the shaft rod (531) is rotatably mounted on the rear side of the corresponding sliding block (522).

7. A rotary drilling machine component welding device according to claim 6, characterized in that: The angle adjustment assembly (56) comprises a rotating rod (561) rotatably connected to the rear side of the guide groove frame (521); the rear side of the slider (522) is rotatably connected to a hollow worm (562) via a fixedly connected support seat (564); the hollow worm (562) is mounted on the outside of the rotating rod (561) to slide up and down; the outside of the shaft (531) is coaxially fixedly connected to a first worm gear (563); the hollow worm (562) meshes with the first worm gear (563); a hand wheel (565) is rotatably mounted on the left side of the bottom end of the guide groove frame (521); and the hand wheel (565) is transmission-connected to the rotating rod (561) via a bevel gear set.

8. A rotary drilling machine component welding device according to claim 3, characterized in that: The moving assembly (58) comprises arc-shaped racks (581) slidably mounted on the front sides of the upper and lower ends of the arc-shaped frame (51), the upper and lower ends of the lead screw (523) are coaxially fixedly connected with driving gears (582), the driving gears (582) are meshed with the corresponding arc-shaped racks (581), a connecting plate (583) is fixedly connected between the right ends of the two arc-shaped racks (581), and a plurality of compression springs (584) are fixedly connected between the connecting plate (583) and the alignment plate (57).

9. A rotary drilling machine component welding device according to claim 1, characterized in that: The welding mechanism (6) comprises an annular guide rail No. 2 (61) fixedly mounted on the base plate (1) and coaxial with the drill bit fixing mechanism (2), a slide seat No. 2 (62) circumferentially slidably mounted on the annular guide rail No. 2 (61), and a multi-dimensional welding robot arm (63) for welding the rotary drilling bit (7) and the spiral blade (8) mounted on the top of the slide seat No. 2 (62).

10. A rotary drilling machine component welding device according to claim 8, characterized in that: The upper and lower ends of the alignment plate (57) are slidably mounted inside the corresponding arc-shaped rack (581), and the left side of the alignment plate (57) is fixedly connected to a pressure strip (571) for pressing the spiral blade (8).

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