Positioning device and processing machine tool

Abstract

The invention discloses a positioning device and a machining tool, and relates to the technical field of pipe fitting welding. The positioning device comprises a supporting mechanism used for installing a pipe fitting, and the pipe fitting can rotate on the supporting mechanism; the angle adjusting mechanism is connected with the supporting mechanism and used for adjusting the included angle between the axis of the pipe fitting and the horizontal plane; and the base is connected with the angle adjusting mechanism. According to the positioning device, the supporting mechanism is arranged, the pipe fitting can be reliably clamped, the pipe fitting is allowed to freely rotate around the axis of the pipe fitting, the supporting mechanism is connected with the angle adjusting mechanism, the space posture of the supporting mechanism can be accurately adjusted through the angle adjusting mechanism, and then the included angle between the axis of the pipe fitting and the horizontal plane is accurately controlled. According to the positioning device, the operation mode that the posture of the pipe fitting is maintained by depending on manual supporting in traditional operation is solved, the problems of positioning deviation, unstable posture, poor repeatability and the like caused by manual operation are avoided, and the precision, the consistency and the operation safety of pipe fitting installation are improved.

Description

Technical Field

[0001] This application relates to the field of pipe welding technology, and in particular to a positioning device and a machine tool. Background Technology

[0002] Currently, the production design of ship piping systems is the most labor-intensive, complex, and tedious part of the shipbuilding process, encompassing multiple stages including production design, fabrication, and on-site installation. After the production design is completed, the piping parts need to be cut and bent in the workshop according to the laid-out drawings.

[0003] After cutting and bending, the pipe fittings need to be straightened and welded. However, traditional construction methods require multiple people to work together to complete the straightening and welding of the pipe fittings. The whole process is highly dependent on manual labor and involves a lot of auxiliary work. Summary of the Invention

[0004] To address the technical problem that multiple people are needed to complete the alignment and welding of pipe fittings during welding, resulting in a high degree of reliance on manual labor throughout the process, this application provides a positioning device and a machine tool, comprising: a support mechanism for mounting the pipe fitting, wherein the pipe fitting can rotate on the support mechanism; an angle adjustment mechanism connected to the support mechanism for adjusting the angle between the axis of the pipe fitting and the horizontal plane; and a base connected to the angle adjustment mechanism.

[0005] In some embodiments, the support mechanism includes: a first base; a chuck, the chuck including an outer ring and an inner ring disposed on the first base, the inner ring and the outer ring being coaxial and rotatable relative to each other; a plurality of jaws, movably disposed on the inner ring along the radial direction of the chuck, for clamping pipe fittings; and a drive member, the fixed end of which is connected to the outer ring, and the output end of which is connected to the inner ring.

[0006] In some embodiments, the clamping ends of the jaws point towards the axis of the chuck, so that a clamping space is formed between the multiple clamping ends, and the pipe is disposed within the clamping space.

[0007] In some embodiments, the angle adjustment mechanism further includes: an adjustment rod, one end of which is rotatably connected to the first base and the other end of which is connected to the outer ring; and a locking member, which is detachably connected to the first base and the adjustment rod.

[0008] In some embodiments, the positioning device further includes an adjusting member disposed on the chuck for adjusting the distance between the clamping end of the jaw and the axis of the chuck.

[0009] In some embodiments, the adjusting member includes: a plurality of racks corresponding to a plurality of jaws, the racks being disposed radially along the chuck on the corresponding jaws; a toothed ring disposed on the inner ring; and a plurality of gears, all meshing with the toothed ring, the plurality of gears corresponding to a plurality of racks, the gears meshing with the corresponding racks.

[0010] In some embodiments, the support mechanism includes: a second base; two supports slidably disposed on the second base; and rollers rotatably connected to the supports for supporting the pipe fitting.

[0011] In some embodiments, the angle adjustment mechanism includes at least two lifting members, spaced apart along the axial direction of the tube, and both lifting members are connected to a support mechanism and a base.

[0012] In some embodiments, the lifting component includes: a lifting rod connected to the support mechanism and the base; and a worm gear screw jack connected to the lifting rod in a transmission manner.

[0013] The second aspect of this application provides a machining tool, including: a positioning device; a machine base, the base being the machine base, and the machine base having multiple mounting holes for movably connecting an angle adjustment mechanism.

[0014] Compared with existing technologies, the positioning device and machine tool provided in this application, by setting up a support mechanism, can clamp the pipe fitting and allow it to rotate freely around its own axis, thereby meeting the need for flexible adjustment of the circumferential position of the pipe fitting during welding. Simultaneously, the support mechanism is connected to an angle adjustment mechanism, which allows for precise adjustment of the spatial posture of the support mechanism, thereby achieving precise control of the angle between the pipe fitting's axis and the horizontal plane. This positioning device solves the problem of relying on manual support to maintain the pipe fitting's posture in traditional operations, avoiding problems such as positioning deviation, unstable posture, and poor repeatability caused by manual operation, and improving the accuracy, consistency, and operational safety of pipe fitting installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first angle structure of a positioning device provided in an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the second angle structure of a positioning device provided in an embodiment of this application;

[0017] Figure 3 This is a schematic diagram of the structure of a machine tool provided in an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of another positioning device provided in an embodiment of this application.

[0019] Figure label:

[0020] 1. Support mechanism; 11. First base; 12. Chuck; 121. Inner ring; 122. Outer ring; 13. Jaw; 131. Clamping end; 132. Jaw handwheel; 133. Jaw worm gear; 134. Jaw worm wheel; 14. Drive component; 15. Second base; 16. Bracket; 17. Roller; 2. Angle adjustment mechanism; 21. Adjusting rod; 22. Locking component; 211. Pitch worm wheel ; 212. Pitch handwheel; 213. Pitch worm gear; 23. Lifting component; 231. Lifting rod; 232. Worm gear jack; 3. Base; 4. Adjusting component; 41. Rack; 42. Gear ring; 43. Gear; 5. Machine base; 51. Mounting hole; 6. Pipe fitting; 7. Coupling; 8. Limit bolt; 9. Slide rail; X, Axial direction of pipe fitting; α, Angle between the axis of pipe fitting and the horizontal plane. Detailed Implementation

[0021] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0022] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0023] Currently, after the production design of marine piping systems is completed, the parts need to be cut and bent in the workshop according to the laid-out piping system drawings. When entering the pipe alignment process, the traditional construction method is to carry out the work on an indoor platform. Based on the dimensions, corners, and branch pipes information in the part drawings, elbows, tees, branch pipes, flanges, and other pipe fittings are positioned and assembled using spot welding. This process usually requires multiple people: one person is responsible for spot welding, while one or two others manually support the pipe fittings or accessories to achieve positioning, maintaining a specific angle between the pipe fittings and the machine tool for subsequent welding. This operation is time-consuming, labor-intensive, and inefficient. After alignment, the pipe fittings are transferred to a welding platform for welding. During welding, the welder needs to adjust the angle between the pipe fittings and the machine tool while welding. Usually, another worker is needed to assist in rotating the pipe fittings to ensure welding quality. The entire process is highly dependent on manual labor and involves a large amount of auxiliary work.

[0024] like Figures 1-4 As shown, a first aspect of this application provides a positioning device, including a support mechanism 1 for mounting a pipe fitting 6, the pipe fitting 6 being rotatable on the support mechanism 1; an angle adjustment mechanism 2 connected to the support mechanism 1 for adjusting the angle α between the axis of the pipe fitting and the horizontal plane; and a base 3 connected to the angle adjustment mechanism 2, as shown. Figure 2 As shown, the axial direction of the pipe fitting is X.

[0025] In one possible scenario, the positioning device can be applied to pipe fittings 6, but also to flanges, pipe accessories (such as tees, reducers, elbows, etc.), short pipe assemblies, or composite piping systems with branch pipes. Pipe fitting 6 can be a straight pipe or a bent pipe, and the bent pipe includes a first pipe section and a second pipe section connected to the first pipe section and forming an angle. The base 3 is used to support the angle adjustment mechanism 2 and the support mechanism 1, and it can be an operating table of any shape or size.

[0026] The support mechanism 1 is used to install the pipe fitting 6. The support mechanism 1 may include a first base 11, a chuck 12, multiple jaws 13, and a drive member 14. The chuck 12 includes an outer ring 122 and an inner ring 121 disposed on the first base 11. The inner ring 121 and the outer ring 122 are coaxial and can rotate relative to each other. Multiple jaws 13 are movably disposed on the inner ring 121 along the radial direction of the chuck 12 for clamping the pipe fitting 6. The fixed end of the drive member 14 is connected to the outer ring 122, and the output end of the drive member 14 is connected to the inner ring 121.

[0027] The first base 11 is located at the bottom, providing a foundation for the installation of the chuck 12. The outer ring 122 of the chuck 12 can be fixed to the first base 11 by bolts or welding, and the inner ring 121 can be rotatably connected to the outer ring 122 by bearings. The jaws 13 are used to clamp the pipe fitting 6. There can be multiple jaws 13. For example, if there are three jaws 13, they are evenly arranged at a 120° angle along the circumference of the inner ring 121; if there are four jaws 13, they are arranged at 90° intervals; if there are six jaws 13, they are arranged at 60° intervals, etc. The jaws 13 can be made of forged steel or alloy steel, and their clamping ends 131 can be provided with straight teeth, arc-shaped clamping surfaces, and V-grooves for contact with the outer circumference of the pipe fitting 6. Its clamping end 131 can be detachably connected to the body of the claw 13 by tenon or bolt, so as to replace the clamping end 131 according to the different sizes or shapes of the pipe fittings 6.

[0028] The positioning device also includes an adjusting component 4, which is mounted on the chuck 12 and is used to precisely adjust the distance between the clamping ends 131 of multiple jaws 13 and the axis of the chuck 12, thereby achieving adaptive clamping and loosening of pipe fittings 6 with different outer diameters. A clamping space is formed between the multiple clamping ends 131 for clamping the pipe fitting 6. The distance between the clamping end 131 of each jaw 13 and the axis of the chuck 12 can be adjusted according to the pipe diameter or shape of the pipe fitting 6. The adjusting component 4 may include a rack 41, a gear ring 42, and multiple gears 43. The number of racks 41 corresponds one-to-one with the number of jaws 13, and each jaw 13 is provided with a rack 41, which is arranged along the radial direction of the chuck 12. The gear ring 42 can be an annular internal gear 43 with internal teeth on its inner ring. The gear ring 42 is rotatably connected to the inner wall of the inner ring 121. By driving one of the jaws 13 to move radially, it drives the corresponding gear 43 to rotate. The gear 43 drives the gear ring 42 to rotate, and the gear ring 42 then drives the gears 43 corresponding to the other jaws 13 to rotate, thereby driving multiple jaws 13 to move radially synchronously and realizing the equidistant radial feed of the racks 41 of multiple jaws 13.

[0029] The positioning device of this application can drive one of the jaws 13 or rack 41 to generate an initial radial displacement in various ways. For example, the jaw 13 can be driven to move by a servo motor, hydraulic cylinder, or pneumatic cylinder. The fixed end of the servo motor, hydraulic cylinder, or pneumatic cylinder is connected to the outer ring 122 or the first base 11, and the output end is connected to the inner ring 121 or jaw 13. Alternatively, the radial movement of the jaw 13 can be driven manually. For example, select the gear 43 corresponding to one of the jaws 13, extend the shaft of the gear 43 outward, pass through the side wall of the inner ring 121 to form an exposed drive shaft end, and fix a handwheel at the shaft end. The handwheel can be fixed by bolts, keys, or welding. The operator turns the handwheel to drive the gear 43 to rotate. Since the gear 43 meshes with the fixed gear ring 42 at the same time, a mechanical constraint is formed. This movement forces the other gears 43 and rack 41 to move synchronously through the reaction force of the gear ring 42. Alternatively, the pawl worm 133, which has a pawl handwheel 132 at one end and a pawl worm wheel 134 at the other end, can be connected to the gear 43 for transmission.

[0030] To enable the pipe fitting 6 mounted on the support mechanism 1 to rotate, the support mechanism 1 includes a drive component 14. The fixed end of the drive component 14 can be connected to the outer ring 122 or the first base 11, and the output end is connected to the inner ring 121, for driving the inner ring 121 to rotate relative to the outer ring 122, thereby driving the pipe fitting 6 to rotate. A gear ring can be machined on the outer edge or end face of the inner ring 121. The drive component 14 can be a combination of a servo motor and a reducer. The motor output shaft is connected to a small gear through the reducer, and the small gear meshes with the gear ring on the inner ring 121.

[0031] The angle adjustment mechanism 2 includes an adjusting rod 21 and a locking element 22. One end of the adjusting rod 21 is rotatably connected to the first base 11, and the other end is connected to the outer ring 122. The locking element 22 is detachably connected to the first base 11 and the adjusting rod 21. The angle adjustment mechanism 2 is used to adjust the spatial posture of the support mechanism 1 relative to the base 3, and can control the angle α between the pipe axis and the horizontal plane, and fix the angle after adjustment to prevent deviation during operation. The adjusting rod 21 can be a rigid rod, which can be made of round steel, square tube or aluminum alloy profile. One end of the adjusting rod 21 can be rotatably connected to the reserved lug on the side or rear of the first base 11 through a pin hinge structure to form a pitch rotation fulcrum, and the other end can be fixedly connected to the outer ring 122 of the chuck 12 by bolts, pins or welding. There can be two adjusting rods 21, which are respectively set on opposite sides of the chuck 12 to support the chuck 12 on the first base 11 and prevent interference between the first base 11 and the chuck 12 when adjusting the angle of the chuck 12. The locking member 22 is a detachable mechanical fixing device used to lock the position of the adjusting rod 21 after adjustment. The locking member 22 can be set in the area of ​​the adjusting rod 21 near the first base 11. The locking member 22 may include a first locking hole set on the first base 11, a second locking hole set on the adjusting rod 21 corresponding to the first locking hole, and a pin. One end of the adjusting rod 21 is provided with a pitch worm gear 211 and a pitch worm 213, and one end of the worm is provided with a pitch handwheel 212, which allows the operator to adjust the pitch angle of the chuck 12 relative to the first base 11 by rotating the adjusting rod 21 with the handwheel. The pitch angle refers to the tilt angle of the axis of the chuck 12 relative to the horizontal plane in the vertical plane. The operator can rotate the handwheel to drive the adjusting rod 21 to rotate around its hinge point with the first base 11, thereby changing the overall tilt state of the chuck 12, realizing the adjustment of the pitch angle, and realizing the adjustment of the angle α between the axis of the pipe 6 held by the jaws 13 on the chuck 12 and the horizontal plane.

[0032] This application, by setting up a support mechanism 1, can clamp the pipe fitting 6 and allow it to rotate freely around its own axis, thereby meeting the need for flexible adjustment of the circumferential position of the pipe fitting 6 during the welding process. Simultaneously, the support mechanism 1 is connected to an angle adjustment mechanism 2, which allows for precise adjustment of the spatial posture of the support mechanism 1, thereby achieving precise control of the angle α between the pipe fitting axis and the horizontal plane. This positioning device solves the problem of relying on manual support to maintain the posture of the pipe fitting 6 in traditional operations, avoiding problems such as positioning deviation, unstable posture, and poor repeatability caused by manual operation, and improving the accuracy, consistency, and operational safety of pipe fitting 6 installation.

[0033] like Figure 2As shown, in some embodiments, the angle adjustment mechanism 2 includes at least two lifting members 23, which are spaced apart along the axial direction of the tube 6, and both lifting members 23 are connected to the support mechanism 1 and the base 3.

[0034] In one possible scenario, the angle adjustment mechanism 2 includes at least two lifting components 23. Each lifting component 23 is connected to the support mechanism 1 and the base 3. Each lifting component 23 corresponds to one support mechanism 1 to support different parts of the same pipe fitting 6. The two lifting components 23 can be spaced apart along the axial direction of the pipe fitting 6. For example, the first lifting component 23 is located in the front end region of the support mechanism 1, and the second lifting component 23 is located in the rear end or middle region of the support mechanism 1. The two maintain a certain distance in the axial direction of the pipe fitting 6, forming two independent support points. By adjusting the extension and retraction stroke of each lifting component 23, its support height is changed. Utilizing the height difference between the front and rear support points, the angle α between the axis of the pipe fitting 6 and the horizontal plane can be adjusted, thereby allowing the pipe fitting 6 to have different processing postures. The lifting component 23 can include a lifting rod 231 and a worm gear screw jack 232. One end of the lifting rod 231 is connected to the base 3, and the other end can be connected to the output end of the worm gear screw jack 232. The worm gear screw jack 232 may include a worm gear reducer and a transmission screw. The input end can be driven by a handwheel, coupling 7, or motor, and the output end is a screw or a nut that drives the lifting rod 231 to perform linear telescopic movement. For longer pipe fittings 6, a greater number of angle adjustment mechanisms 2 and support mechanisms 1 can be used, such as 3, 4, or 6. Each lifting component 23 may contain multiple lifting rods 231, with adjacent lifting rods 231 connected by the coupling 7.

[0035] like Figure 4 As shown, in some embodiments, the support mechanism 1 includes: a second base 15, two brackets 16 and rollers 17, the two brackets 16 being slidably disposed on the second base 15; the rollers 17 being rotatably connected to the brackets 16 for supporting the pipe 6.

[0036] The operation process of this positioning device is as follows:

[0037] First, the pipe fitting 6 to be processed is placed in the center area of ​​the chuck 12 of the support mechanism 1. For straight pipes, its axis is aligned with the axis of the chuck 12; for bent pipes, the spindle of the bent pipe is aligned with the axis of the chuck 12, leaving space for adjustment in the direction of straight pipes. Then, a clamping operation is performed. The chuck handwheel 132 is rotated to drive the chuck 13 to generate radial displacement, changing the size of the clamping space, so that multiple chucks 13 clamp the outer circumference of the pipe fitting 6. After the pipe fitting 6 is installed, the angle α between the pipe fitting axis and the horizontal plane needs to be adjusted. This can be achieved by at least two lifting components 23 in the angle adjustment mechanism 2, spaced apart along the pipe fitting axis in the X direction. The height of the lifting component 23 at the front end of the pipe fitting 6 is adjusted by the worm gear jack 232, and the height of the lifting component 23 at the rear end of the pipe fitting 6 is adjusted to create a height difference between the supporting ends of the lifting components 23 at the front and rear ends of the pipe fitting 6, thereby adjusting the tilt angle of the pipe fitting 6. That is, the angle α between the axis of the pipe fitting and the horizontal plane is the angle required for subsequent welding. When adjusting the height of the lifting component 23, the pitch angle of the chuck 12 can also be adjusted by rotating the adjusting rod 21 using the pitch handwheel 212. During subsequent welding, the drive component 14 can be activated as needed to rotate the inner ring 121 and the jaws 13, causing the pipe fitting 6 to rotate uniformly around its own axis. The welder can then continuously weld in a fixed position, ensuring a uniform weld. The entire process requires no manual assistance, improving welding quality and efficiency. Finally, after welding or pipe alignment, the jaws 13 are reversed to synchronously and radially retract, releasing the pipe fitting 6. The finished pipe fitting 6 is then removed, and the clamping end is cleaned in preparation for the next pipe fitting operation.

[0038] In one possible scenario, this application provides another positioning device, which includes a second base 15, two supports 16, and a roller 17. The second base 15 serves as the mounting base for the support mechanism 1 and can be a plate-like structure of any shape. The second base 15 is provided with a sliding guide rail or a T-slot for guiding the sliding of the supports 16. The supports 16 can be of any shape, such as an L-shaped support 16, a U-shaped support 16, or a T-shaped support 16. A support 16 with a triangular cross-section can be used, and its bottom can be provided with a slider to cooperate with the guide rail on the second base 15 to achieve smooth sliding. A roller 17 can be provided on the top of the supports 16, and the roller 17 is rotatably connected to the top of the supports 16. The outer circumference of the roller 17 is cylindrical or has a V-groove design for contacting the outer wall of the pipe fitting 6 and providing rolling support. The positioning device can be adapted to pipe fittings 6 of different diameters by adjusting the distance between the two supports 16. Additionally, through holes extending along the sliding direction of the bracket 16 can be provided at both ends of the slide rail 9 of the second base 15. These through holes penetrate the end of the slide rail 9, and their inner walls are provided with a first thread. The limiting bolts 8 have a second thread that matches the first thread. The two limiting bolts 8 are screwed in from the left and right sides respectively. When the bracket 16 slides into position, the limiting bolts 8 are simultaneously tightened, so that their ends abut against the left and right sides of the bracket 16, forming a bidirectional clamping. The limiting bolts 8 are then completely screwed out of the through holes, so that their ends do not protrude from the end face of the slide rail 9. At this point, the bracket 16 can slide freely on the slide rail 9 for spacing adjustment. When the two brackets 16 move to the target position, the operator rotates the limiting bolts 8, screwing them in along the through holes. As the bolts penetrate deeper, their front ends gradually press against the side wall of the bracket 16, continuing to apply force, pressing the bracket 16 against a certain position on the slide rail 9, generating sufficient friction or forming a rigid support, thereby preventing displacement during operation.

[0039] To further lock the bracket 16 onto the second base 15, a transverse through hole can be made in the slide rail 9, perpendicular to the sliding direction, passing through the mounting area of ​​the bracket 16, and a long screw can be inserted. The screw should be long enough to pass through the gap between the slide rail 9 and the bracket 16. Locking nuts are installed at both ends of the screw. When adjusting, loosen the nuts, move the bracket 16, and after it is in place, tighten the nuts at both ends to clamp the bracket 16 in the middle, thereby locking the bracket 16.

[0040] The operation process of this positioning device is as follows:

[0041] This positioning device is suitable for straight pipes. The distance between the two supports 16 can be adjusted according to the diameter of the pipe fitting 6 to be processed. Loosen the limit bolts 8 or lock nuts, and manually slide the two supports 16 along the slide rail 9 on the second base 15. Adjust the distance according to the length and diameter of the pipe fitting 6 to be supported, so that the two rollers 17 are in a suitable support position below the pipe fitting 6. After the supports 16 move to the target position, the locking operation begins: if the end threaded through hole structure is used, the limit bolts 8 are screwed in from the left and right sides respectively, and rotated synchronously so that the front end gradually presses against the left and right sides of the two supports 16 to form a bidirectional clamping, generating sufficient friction to prevent axial displacement during operation; if the transverse through hole structure is used, the long screw is inserted into the through hole perpendicular to the sliding direction, passes through the gap of the supports 16, and lock nuts are installed and tightened at both ends of the screw to clamp and fix the supports 16 in the predetermined position. After locking the bracket 16, the pipe fitting 6 is placed stably on the two rollers 17. The outer circumference of the rollers 17 is cylindrical or V-grooved, which can fit well with the outer wall of the pipe fitting 6 and provide rolling support, allowing the pipe fitting 6 to slide axially or rotate circumferentially. During the welding process, the operator can manually rotate the rollers 17 as needed to adjust the welding position of the pipe fitting 6. If the support position needs to be readjusted during use, the limit bolts 8 or lock nuts can be loosened, the bracket 16 can be slid to the new position again and locked. This positioning fixture, through its adjustable-pitch rolling support structure and bidirectional locking mechanism, achieves flexible adaptation and stable support for pipe fittings of different specifications, significantly improving the efficiency and safety of pipe assembly. In addition, for longer pipe fittings 6, multiple support mechanisms 1 can be set along the axial direction of the pipe fitting 6 to support different positions of the pipe fitting 6. When it is necessary to adjust the welding angle, the angle α between the axis of the pipe fitting and the horizontal plane can be changed by adjusting the height of the support end of the lifting part 23 corresponding to different support mechanisms 1, that is, changing the tilt angle of the pipe fitting 6.

[0042] like Figure 2 , Figure 3 , Figure 4 As shown, the second aspect of this application provides a processing machine tool, including a positioning device and a machine base 5. The base 3 is the machine base 5, and the machine base 5 is provided with a plurality of mounting holes 51 for movably connecting an angle adjustment mechanism 2.

[0043] A second aspect of this application provides a machine tool, which includes a positioning device and a machine base 5 serving as a base 3. The machine base 5 not only provides a stable foundation but also has flexible adjustment capabilities to adapt to the processing needs of workpieces of different sizes and shapes. The dimensions of the machine base 5 can be set according to actual needs, such as a length of 3m, a width of 1.5m, and a thickness of 25mm; or a length of 2m, a width of 1.5m, and a thickness of 25mm, etc. Mounting holes 51 can be evenly arranged on the machine base 5 at 100mm intervals for mounting lifting rods 231. The diameter of the lifting rod 231 matches the diameter of the mounting holes 51, allowing the lifting rod 231 to be inserted and removed into the mounting holes 51. The diameter of the mounting holes 51 can be set according to the diameter of the lifting rod 231; for example, if the diameter of the lifting rod 231 is 28mm, the diameter of the mounting holes 51 can be 28mm.

[0044] To prevent the lifting rod 231 from moving, one or more radial through holes can be provided at the bottom or outer wall of the lifting rod 231, into which a spring-loaded elastic pin can be inserted. A corresponding annular groove or retaining groove can be provided around the mounting hole 51 of the machine base 5. When the lifting rod 231 is inserted into the hole, the spring automatically pops out and engages with the groove when the elastic pin aligns with the annular groove, achieving axial locking and preventing the lifting rod 231 from moving up and down. It can be pulled out by pressing the pin handle during disassembly. Alternatively, the bottom of the lifting rod 231 can be machined into an outer conical surface, and a matching inner conical hole can be machined inside the mounting hole 51 of the machine base 5. A locking nut can be tightened from below the machine base 5 to press the conical surface firmly.

[0045] In addition, the machine tool can also be equipped with a cutting device so that the pipe 6 can be directly cut after being positioned on the machine base 5 by the positioning device. The cutting device can be an electric saw, a plasma cutter or other cutting tools suitable for metal pipe 6. By adjusting the tilt angle of the pipe 6 by the positioning device, precise cutting angle control can be achieved.

[0046] To further improve processing efficiency, the machine tool can also be equipped with a beveling cutter. The beveling cutter is used to process the bevel required for welding at the end of the pipe fitting to ensure the quality of subsequent welding. Similarly, by adjusting the angle of the pipe fitting through the positioning device, processing with different bevel angles can be achieved.

[0047] After the pipe fitting 6 on the positioning device is cut by the cutting device, if its bevel deviates from the standard bevel, the bevel can be quickly corrected by the beveling cutter on the machine tool before the pipe fitting 6 is removed from the positioning device. This avoids the need to send the pipe fitting 6 to different machine tools for different processing in traditional operations, saving processing time. The types of cutting devices here include, but are not limited to, flame cutting machines, laser cutting machines, etc., and the types of beveling cutters include, but are not limited to, end milling beveling cutter heads, flame beveling cutting heads, etc.

[0048] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0049] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0050] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0051] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A positioning device, characterized in that, include: A support mechanism for mounting pipe fittings, wherein the pipe fittings are rotatable on the support mechanism; An angle adjustment mechanism, connected to the support mechanism, is used to adjust the angle between the axis of the pipe fitting and the horizontal plane; The base is connected to the angle adjustment mechanism.

2. The positioning device according to claim 1, characterized in that, The supporting structure includes: First base; A chuck, the chuck comprising an outer ring and an inner ring disposed on the first base, the inner ring and the outer ring being coaxial and rotatable relative to each other; Multiple jaws are movably disposed on the inner ring along the radial direction of the chuck for clamping the pipe fitting; The driving component has a fixed end connected to the outer ring and an output end connected to the inner ring.

3. A positioning device according to claim 2, characterized in that, The clamping ends of the jaws point towards the axis of the chuck, so that a clamping space is formed between the multiple clamping ends, and the pipe is disposed within the clamping space.

4. A positioning device according to claim 2, characterized in that, The angle adjustment mechanism includes: The adjusting rod is rotatably connected at one end to the first base and at the other end to the outer ring; The locking element is detachably connected to the first base and the adjusting rod.

5. A positioning device according to claim 3, characterized in that, Also includes: An adjusting element, disposed on the chuck, is used to adjust the distance between the clamping end of the jaw and the axis of the chuck.

6. A positioning device according to claim 5, characterized in that, The adjusting element includes: Multiple racks correspond one-to-one with multiple jaws, and the racks are arranged radially along the chuck on the corresponding jaws; A toothed ring is provided on the inner ring; Multiple gears mesh with the gear ring, and each gear corresponds to a rack. The gear meshes with the corresponding rack.

7. A positioning device according to claim 1, characterized in that, The supporting structure includes: Second base; Two brackets are slidably mounted on the second base; Rollers are rotatably connected to the bracket to support the pipe fitting.

8. A positioning device according to claim 1, characterized in that, The angle adjustment mechanism also includes: At least two lifting components are spaced apart along the axial direction of the pipe, and both lifting components are connected to the support mechanism and the base.

9. A positioning device according to claim 8, characterized in that, The lifting component includes: The lifting rod is connected to the support mechanism and the base; The worm gear screw jack is connected to the lifting rod via a transmission.

10. A processing machine tool, characterized in that, include: A positioning device according to any one of claims 1-9; The machine base is the machine base, and the machine base is provided with multiple mounting holes for movably connecting the angle adjustment mechanism.

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