Welding fixing clamp for mechanical manufacturing

Abstract

The invention discloses a welding fixing clamp for mechanical manufacturing, and relates to the technical field of clamps, the welding fixing clamp comprises a mounting plate, a clamping assembly is arranged at the position, close to the center, of the top of the mounting plate, and a detection assembly is arranged at the position, close to the edge of one side, of the top of the mounting plate; according to the welding fixing clamp for mechanical manufacturing, in the mechanical manufacturing process, when a cylindrical steel pipe needs to be welded, firstly, the steel pipe needing to be welded is placed in an arc-shaped rod, the position of the center line of the pipe is scanned and detected through a laser scanner, and the steel pipe is moved to the position of the center line of two clamping blocks under the action of a conveying device; according to the fixing clamp for welding the pipeline, the clamping assembly is arranged, the pipeline is clamped, the center line of the pipeline is aligned with the center line of the clamping assembly, so that the clamping force of the fixing clamp for welding the pipeline to the pipeline is uniform, and the problem that in the prior art, the clamping force of the fixing clamp for welding the pipeline to the pipeline is not uniform, and the pipeline welding strength is reduced is solved.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, in particular to a welding fixing clamp for mechanical manufacturing. Background Art

[0002] Mechanical manufacturing refers to the process of using mechanical equipment and processes to process raw materials into parts or finished products. As an important mechanical equipment, the manufacturing and processing of pipelines involves many aspects, including design, material selection, molding, welding, assembly, etc. In the process of welding pipelines, clamping equipment is required to clamp and fix them.

[0003] Currently, in the process of processing and welding, in order to ensure the stability of the pipeline, it is often necessary to use a fixed clamp to clamp it. During the process of clamping the pipeline, most workers simply insert the pipeline into the inside of the clamp without checking whether the center line of the pipeline is aligned with the center line of the clamp. When the two are not aligned, it is easy to cause uneven clamping force on the pipeline, which will cause additional force on the pipeline during welding, resulting in deformation or distortion of the pipeline, thereby reducing the welding quality of the pipeline.

[0004] Therefore we propose a welding fixture for mechanical manufacturing to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a welding fixture for mechanical manufacturing to solve the problem that the fixture for pipe welding proposed in the above background technology has uneven clamping force on the pipe, which reduces the pipe welding strength.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding fixture for mechanical manufacturing, comprising a mounting plate, a clamping assembly is arranged near the center of the top of the mounting plate, a detection assembly is arranged near the edge of one side of the top of the mounting plate, the detection assembly comprises a limit rod, a movable frame is slidably connected to the inside of the limit rod, a first electromagnet is arranged on the inner top surface of the movable frame, a laser scanner is arranged on the top of the movable frame, a correction assembly is arranged near the other side edge of the top of the mounting plate, the correction assembly comprises a movable rod, a hollow plate is slidably connected to the inside of the movable rod, The inner part of the hollow plate is slidably connected to a limit plate, a tooth row is fixedly installed on the top of the limit plate, a mounting frame is fixedly installed on the outer surface of the hollow plate, the inner wall of the mounting frame is fixedly connected to a supporting frame, the outer surface of the supporting frame is fixedly installed with a first forward and reverse motor by screws, the output shaft of the first forward and reverse motor is fixedly connected to a rotating shaft, a gear is fixedly sleeved on the outer surface of the rotating shaft, a support block is fixedly installed on the top end of the tooth row, an arc rod is fixedly installed on the outer surface of the support block, a support tube is movably embedded between the relative inner walls of the support block, and a positioning block is fixedly sleeved on the outer surface of the support tube.

[0007] Preferably, hollow sleeves are fixed to opposite outer surfaces of the support blocks, coil springs are arranged inside the two hollow sleeves, a second electromagnet is arranged on the inner wall of the support block, and a first sliding groove is opened on the top of the support block near the two side edges.

[0008] Preferably, a telescopic tube is provided on the outer surface of the mounting frame near the top, a spring is provided on the outer surface of the telescopic tube, one end of the telescopic tube is fixedly connected to an extrusion plate, a second slide groove is provided on the top of the mounting frame near the two side edges, a movable frame is slidably connected between the insides of the two second slide grooves, and a first iron block is provided inside the movable frame.

[0009] Preferably, the bottom of the limit rod is fixedly connected to the top of the mounting plate, a limit slot is provided on the top of the mounting plate, an auxiliary block is fixedly installed on the outer surface of the mounting plate, a multi-stage electric telescopic rod is provided on the outer surface of the auxiliary block, and the outer surface of the movable rod is slidably connected to the inner wall of the limit slot.

[0010] Preferably, one end of the multi-stage electric telescopic rod is fixedly connected to the outer surface of the movable rod, the bottom of the gear row is movable through the outside of the hollow plate, the two ends of the rotating shaft are respectively movable through the opposite outsides of the supporting frame, and the outer surface of the gear row is meshedly connected with the outer surface of the gear.

[0011] Preferably, the two ends of the support tube are movably connected to the outside of the two hollow sleeves, and the outer surface of the support tube is fixedly connected to the outer surfaces of the two coil springs near the two ends, one end of the spring is fixedly connected to the outer surface of the mounting frame, and the other end of the spring is fixedly connected to the outer surface of the extrusion plate, and the bottom of the extrusion plate is fixedly connected to the top of the movable frame.

[0012] Preferably, a conveying device is arranged on the top of the mounting plate, the outer surface of the movable frame contacts the outer surface of the conveying device, a plurality of second iron blocks are arranged on the outer surface of one of the conveyor belts in the conveying device, and a third iron block is arranged on the outer surface of another conveyor belt in the conveying device.

[0013] Preferably, the clamping assembly includes a pressure-resistant frame, two cylinders are arranged near the center of the top of the mounting plate, the top ends of the two cylinders are fixedly connected to the bottom of the pressure-resistant frame, a second forward and reverse motor is fixedly installed on the outer surface of the pressure-resistant frame near the bottom by screws, the output shaft of the second forward and reverse motor is fixedly connected to a bidirectional threaded tube, both ends of the bidirectional threaded tube are movably penetrated to the opposite outsides of the pressure-resistant frame, and two movable rods are provided on the threaded sleeve on the outer surface of the bidirectional threaded tube.

[0014] Preferably, a third forward and reverse motor is fixedly installed on the outer surface of the pressure-resistant frame near the top by screws, and the output shaft of the third forward and reverse motor is fixedly connected to a rotating tube, and the two ends of the rotating tube are respectively movable and penetrated to the opposite outsides of the pressure-resistant frame, and the two ends of the rotating tube are respectively movable and penetrated to the outsides of the two moving rods, and two clamping blocks are rotatably sleeved on the outer surface of the rotating tube.

[0015] Preferably, the outer surfaces of the two clamping blocks are slidably connected to the inner wall of the rotating tube, the relative inner walls of the two clamping blocks are respectively in contact with the opposite outer surfaces of the two moving rods, the outer surfaces of the two clamping blocks are provided with anti-sliding blocks, and the tops of the two moving rods have grooves near one side edge.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the process of mechanical manufacturing, when a cylindrical steel pipe needs to be welded, the steel pipe to be welded is first placed inside the arc rod, the center line position of the pipe is detected by scanning with a laser scanner, and the pipe is moved to the center line position of the two clamps under the action of a conveying device, and the pipe is clamped. By aligning the center line of the pipe with the center line position of the clamping assembly, the force of the pipe clamping by the welding pipe fixing clamp is uniform, which solves the problem of uneven pipe clamping force of the pipe fixing clamp in the prior art, which reduces the pipe welding strength.

[0018] 2. In the process of conveying the pipeline, when the support block moves downward, when the support block and the top plane position of the mounting frame are on the same horizontal line, the first iron block is driven by the magnetic attraction and moves along the first slide groove and the second slide groove toward the second electromagnet under the support of the movable frame, thereby squeezing the positioning block and pressing the pipeline to prevent its position from shifting under inertia during the movement, thereby further improving the stability of the pipeline during movement.

[0019] 3. In the process of fixing and clamping the pipe with the fixing clamp for welding pipes, in order to prevent the pipe from being too long or too short and causing low clamping strength, when the pipe is long, start the second forward and reverse motor to drive the two moving rods to move toward or oppositely, and then drive the two clamping blocks to move toward or oppositely, thereby further strengthening the clamping of pipes of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective view of a welding fixture for mechanical manufacturing of the present invention;

[0021] Figure 2 It is a three-dimensional view of the mounting plate portion of a welding fixture for mechanical manufacturing of the present invention;

[0022] Figure 3 This is a perspective view of the structure of the limiting rod of a welding fixture for mechanical manufacturing according to the present invention;

[0023] Figure 4 It is a partial three-dimensional diagram of a correction component of a welding fixture for mechanical manufacturing of the present invention;

[0024] Figure 5 It is a sectional perspective view of a hollow plate portion of a welding fixture for mechanical manufacturing of the present invention;

[0025] Figure 6 This is a perspective view of the structure of the movable frame of a welding fixture for mechanical manufacturing according to the present invention;

[0026] Figure 7 It is a three-dimensional diagram of the arc-shaped rod part of a welding fixture for mechanical manufacturing of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0028] Fig. 9 It is a partially cutaway stereoscopic view of a support block of a welding fixture for mechanical manufacturing of the present invention;

[0029] Fig.10 It is a partial three-dimensional diagram of a clamping assembly of a welding fixture for mechanical manufacturing of the present invention;

[0030] Fig.11 The present invention is a sectional stereoscopic view of the rotating tube portion of a welding fixing fixture for mechanical manufacturing.

[0031] In the figure:

[0032] 1. Mounting plate; 2. Conveying device; 3. Second iron block; 4. Third iron block; 5. Detection assembly; 501. Limit rod; 502. Moving frame; 503. First electromagnet; 504. Laser scanner; 6. Correction assembly; 601. Movable rod; 602. Hollow plate; 603. Limit plate; 604. Tooth row; 605. Mounting frame; 606. Carrying frame; 607. First forward and reverse motor; 608. Rotating shaft; 609. Gear; 610. Support block; 611. Arc rod; 612. Support tube; 613. Positioning block; 614. Second electromagnet Iron; 615, first slide; 616, telescopic tube; 617, spring; 618, movable frame; 619, extrusion plate; 620, first iron block; 621, second slide; 622, hollow sleeve; 623, coil spring; 7, clamping assembly; 701, pressure-resistant frame; 702, cylinder; 703, second forward and reverse motor; 704, two-way threaded tube; 705, moving rod; 706, third forward and reverse motor; 707, rotating tube; 708, clamping block; 709, anti-sliding block; 710, slot; 8, auxiliary block; 9, limit slot; 10, multi-stage electric telescopic rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-11The present invention provides a technical solution: a welding fixture for mechanical manufacturing, comprising a mounting plate 1, a clamping assembly 7 is arranged near the center of the top of the mounting plate 1, a detection assembly 5 is arranged near the edge of one side of the top of the mounting plate 1, the detection assembly 5 comprises a limit rod 501, a movable frame 502 is slidably connected inside the limit rod 501, a first electromagnet 503 is arranged on the inner top surface of the movable frame 502, a laser scanner 504 is arranged on the top of the movable frame 502, a correction assembly 6 is arranged near the other side edge of the top of the mounting plate 1, the correction assembly 6 comprises a movable rod 601, a hollow plate 602 is slidably connected inside the movable rod 601, a limit plate 603 is slidably connected inside the hollow plate 602, a tooth row is fixedly installed on the top of the limit plate 603 604, a mounting frame 605 is fixed on the outer surface of the hollow plate 602, and a supporting frame 606 is fixedly connected to the inner wall of the mounting frame 605. A first forward and reverse motor 607 is fixedly installed on the outer surface of the supporting frame 606 by screws, and a rotating shaft 608 is fixedly connected to the output shaft of the first forward and reverse motor 607. A gear 609 is fixedly sleeved on the outer surface of the rotating shaft 608. A support block 610 is fixed on the top of the top of the gear row 604, and an arc rod 611 is fixedly installed on the outer surface of the support block 610. A support tube 612 is movably embedded between the opposite inner walls of the support block 610, and a positioning block 613 is fixedly sleeved on the outer surface of the support tube 612. Hollow sleeves 622 are fixed on the opposite outer surfaces of the support block 610, and coil springs 622 are arranged inside the two hollow sleeves 622. 3. A second electromagnet 614 is arranged on the inner wall of the support block 610. A first slide groove 615 is provided at the top of the support block 610 near the edges on both sides. A telescopic tube 616 is provided at the outer surface of the mounting frame 605 near the top. A spring 617 is provided on the outer surface of the telescopic tube 616. An extrusion plate 619 is fixedly connected to one end of the telescopic tube 616. A second slide groove 621 is provided at the top of the mounting frame 605 near the edges on both sides. A movable frame 618 is slidably connected between the insides of the two second slide grooves 621. A first iron block 620 is arranged inside the movable frame 618. The bottom of the limit rod 501 is fixedly connected to the top of the mounting plate 1. A limit groove 9 is provided at the top of the mounting plate 1. An auxiliary block 8 is fixedly installed on the outer surface of the mounting plate 1. The outer surface of the auxiliary block 8 A multi-stage electric telescopic rod 10 is arranged on the surface, the outer surface of the movable rod 601 is slidably connected to the inner wall of the limiting groove 9, one end of the multi-stage electric telescopic rod 10 is fixedly connected to the outer surface of the movable rod 601, the bottom of the gear row 604 is movable to penetrate the outside of the hollow plate 602, the two ends of the rotating shaft 608 are respectively movable to penetrate the opposite outside of the bearing frame 606, the outer surface of the gear row 604 is meshed and connected with the outer surface of the gear 609, the two ends of the support tube 612 are respectively movable to penetrate the outside of the two hollow sleeves 622, the outer surface of the support tube 612 is respectively fixedly connected to the outer surfaces of the two coil springs 623 near the two ends, one end of the spring 617 is fixedly connected to the outer surface of the mounting frame 605, and the other end of the spring 617 is fixedly connected to the outer surface of the extrusion plate 619.The bottom of the extrusion plate 619 is fixedly connected to the top of the movable frame 618.

[0035] In this embodiment, during the mechanical manufacturing process, when a cylindrical steel pipe needs to be welded, the steel pipe to be welded is first placed inside the arc rod 611, wherein the inner diameter of the arc rod 611 is larger than the outer diameter of the pipe, in order to limit the position of the pipe, and then the conveying device 2 is started, wherein the conveying device 2 drives the roller at one end through the reducer to rotate, thereby driving the conveyor belt to move, and the rotation of the driving roller drives the conveyor belt connected thereto to move. Since one end of the belt is fixed and the other end is free, the entire conveyor belt realizes a cyclic motion under the action of the driving roller. In addition, Figure 1 As shown, the conveying device 2 is composed of two conveyor belts, the purpose of which is to facilitate the clamping of the pipeline in the later stage. Then the first electromagnet 503 is electrically connected to the external power supply to generate a magnetic field to adsorb the third iron block 4. Figure 2As described above, the outer surface of the conveying device 2 is in contact with the outer surface of the moving frame 502, so that the first electromagnet 503 is in close contact with the outer surface of the third iron block 4. When the first electromagnet 503 is energized, the third iron block 4 can be adsorbed. At the same time, the laser scanner 504 is started through the external control system to scan the pipeline and detect the center line position of the pipeline. The laser scanner 504 emits laser beams in a continuous form. These laser beams are irradiated to the surface of the pipeline at a specific frequency and angle. Part of the beam is reflected back by the pipeline. The receiver of the laser scanner 504 captures the reflected laser pulses and records the return time of each pulse. According to the speed of light and the round-trip time of the beam, the time from the scanner to the pipeline is calculated. The distance from the pipeline surface, the laser scanner 504 collects data from different perspectives by changing the emission angle, which enables the scanner to fully cover all parts of the pipeline to form a three-dimensional point cloud. The results of multiple laser scans will generate a relatively dense point cloud data set. The precise position of each point is determined by the emission angle of the laser and the measured distance. These points together describe the shape and characteristics of the pipeline. The point cloud data is analyzed by computer software. The algorithm processes the point cloud to extract the contour of the pipeline. Based on the extracted contour information, the center line of the pipeline is calculated. The conveying device 2 drives the third iron block 4 to move along the direction of the limit rod 501, thereby driving the moving frame 502 to move, thereby driving the laser scanner 504 to move. Through the laser scanner 50 4 moves to perform an all-round scan on the outer surface of the pipeline, so as to analyze and find the center line position of the pipeline, wherein the conveying device 2 can drive the conveyor belt to switch forward and backward, so as to only drive the third iron block 4 to move on the top of the conveying device 2, and will not rotate it to the bottom of the conveying device 2. When the laser scanner 504 detects the center line position of the pipeline, it transmits a signal to the external control system, and the conveying device 2 is started again through the external control system, driving the laser scanner 504 to move to the center line position of the clamping component 7, and at the same time starting the first forward and reverse motor 607, driving the rotating shaft 608 to rotate, thereby driving the gear 609 to rotate, and then the tooth row 604 moves downward, thereby driving the support block 610 to move downward, and then the second electromagnet 614 moves downward and contacts the outer surfaces of the plurality of second iron blocks 3. At the same time, the second electromagnet 614 is electrically connected to the external power supply to adsorb the plurality of second iron blocks 3, so that the second electromagnet 614 is driven to move during the movement of the second iron blocks 3, thereby driving the arc rod 611 to move, and finally driving the pipeline and the laser scanner 504 to move synchronously toward the center line position of the clamping assembly 7. When the pipeline and the laser scanner 504 are both moved to the center line position of the clamping assembly 7, wherein the center line position in the clamping assembly 7 is the position equidistant from the two clamping blocks 708, when the center line of the pipeline is aligned with the center line position in the clamping assembly 7, the second electromagnet 614 is disconnected from the external power supply, and the first forward and reverse motor 607 is started again.The gear 609 is driven to rotate in the opposite direction, thereby driving the gear row 604 to move upward, so that the support block 610 is separated from the top of the conveying device 2, that is, the positioning of the pipeline is completed. When the second electromagnet 614 is disconnected from the external power supply, the extrusion plate 619 will be reset under the elastic action of the spring 617 and move to the top of the mounting bracket 605, thereby ending the extrusion of the positioning block 613, so that the two coil springs 623 are reset under the action of their own elastic force, driving the support tube 612 to rotate in the opposite direction, and then driving the positioning block 613 to rotate in the opposite direction, so that its outer surface is aligned with the outer surface of the pipeline. The surfaces are separated to end the pressing and clamping of the pipeline. Then, the two cylinders 702 can be started to extend, driving the pressure-resistant frame 701 to move upward, and then driving the two clamping grooves 710 to move upward until the two clamping grooves 710 and the arc rod 611 are in a concentric circle position, wherein the inner diameter of the clamping groove 710 is consistent with the inner diameter of the arc rod 611, so that the outer surface of the pipeline contacts the inner wall of the two clamping grooves 710 respectively, and then the third forward and reverse motor 706 can be started to drive the rotating tube 707 to rotate, and then drive the two clamping blocks 708 to rotate toward the outer surface of the pipeline, wherein, as, Fig.11 As shown, the outer surface of the rotating tube 707 is provided with a strip groove, and slides with the outer surface of the clamping block 708, the purpose of which is to limit the clamping block 708, so that the clamping block 708 can move along the rotating tube 707 and can also rotate with the rotation of the rotating tube 707. The rotation of the two clamping blocks 708 drives the anti-sliding block 709 to rotate in the direction of the pipeline, thereby clamping and fixing the pipeline, wherein the anti-sliding block 709 is made of rubber material with anti-slip effect, which can further improve the clamping and fixing strength of the pipeline, by aligning the center line of the pipeline with the center line position of the clamping assembly 7 The first forward and reverse motor 607 is started again to drive the tooth row 604 to move downward, thereby driving the arc rod 611 to move downward, thereby completely separating the arc rod 611 from the pipe, and then starting the multi-stage electric telescopic rod 10 to shorten it, driving the movable rod 601 to move along the limiting groove 9 toward the edge of the mounting plate 1, thereby separating it from the arc rod 611, thereby solving the problem in the prior art that the uneven clamping force of the pipe by the pipe welding fixing clamp reduces the pipe welding strength.

[0036] like Figure 1 and Figure 4-Figure 9As shown, a welding fixture for mechanical manufacturing includes a mounting plate 1, a clamping assembly 7 is arranged near the center of the top of the mounting plate 1, a detection assembly 5 is arranged near the edge of one side of the top of the mounting plate 1, the detection assembly 5 includes a limit rod 501, the limit rod 501 is internally slidably connected to a moving frame 502, a first electromagnet 503 is arranged on the internal top surface of the moving frame 502, a laser scanner 504 is arranged on the top of the moving frame 502, a correction assembly 6 is arranged near the edge of the other side of the top of the mounting plate 1, the correction assembly 6 includes a movable rod 601, the movable rod 601 is internally slidably connected to a hollow plate 602, the hollow plate 602 is internally slidably connected to a limit plate 603, the top of the limit plate 603 is fixedly installed with a tooth row 604, and the hollow A mounting frame 605 is fixed on the outer surface of the plate 602, and a support frame 606 is fixedly connected to the inner wall of the mounting frame 605. A first forward and reverse motor 607 is fixedly installed on the outer surface of the support frame 606 by screws. The output shaft of the first forward and reverse motor 607 is fixedly connected to a rotating shaft 608. A gear 609 is fixedly sleeved on the outer surface of the rotating shaft 608. A support block 610 is fixed to the top of the top of the gear row 604. An arc rod 611 is fixedly installed on the outer surface of the support block 610. A support tube 612 is movably embedded between the opposite inner walls of the support block 610. A positioning block 613 is fixedly sleeved on the outer surface of the support tube 612. Hollow sleeves 622 are fixed to the opposite outer surfaces of the support block 610. Coil springs 623 are arranged inside the two hollow sleeves 622 to support A second electromagnet 614 is provided on the inner wall of the block 610, a first slide groove 615 is provided on the top of the support block 610 near the edges on both sides, a telescopic tube 616 is provided on the outer surface of the mounting frame 605 near the top, a spring 617 is provided on the outer surface of the telescopic tube 616, one end of the telescopic tube 616 is fixedly connected with an extrusion plate 619, a second slide groove 621 is provided on the top of the mounting frame 605 near the edges on both sides, a movable frame 618 is slidably connected between the insides of the two second slide grooves 621, a first iron block 620 is provided inside the movable frame 618, the bottom of the limit rod 501 is fixedly connected with the top of the mounting plate 1, a limit groove 9 is provided on the top of the mounting plate 1, an auxiliary block 8 is fixedly installed on the outer surface of the mounting plate 1, and a spring 617 is provided on the outer surface of the auxiliary block 8 A multi-stage electric telescopic rod 10 is arranged, the outer surface of the movable rod 601 is slidably connected to the inner wall of the limiting groove 9, one end of the multi-stage electric telescopic rod 10 is fixedly connected to the outer surface of the movable rod 601, the bottom of the gear row 604 is movable to penetrate the outside of the hollow plate 602, the two ends of the rotating shaft 608 are respectively movable to penetrate the opposite outside of the bearing frame 606, the outer surface of the gear row 604 is meshed and connected with the outer surface of the gear 609, the two ends of the support tube 612 are respectively movable to penetrate the outside of the two hollow sleeves 622, the outer surface of the support tube 612 is respectively fixedly connected to the outer surfaces of the two coil springs 623 near the two ends, one end of the spring 617 is fixedly connected to the outer surface of the mounting frame 605, and the other end of the spring 617 is fixedly connected to the outer surface of the extrusion plate 619.The bottom of the extrusion plate 619 is fixedly connected to the top of the movable frame 618.

[0037] In this embodiment, during the process of conveying the pipeline, during the process of the support block 610 moving downward, when the support block 610 and the top plane position of the mounting frame 605 are on the same horizontal line, the two first slide grooves 615 are exactly on the same horizontal line with the two second slide grooves 621. Since the second electromagnet 614 has an adsorption force at this time, the first iron block 620 is driven by the magnetic attraction and moves along the first slide groove 615 and the second slide groove 621 toward the second electromagnet 614 under the support of the movable frame 618, so that the spring 617 is extended, and the movement of the movable frame 618 drives the extrusion plate 619 to move in the direction of the positioning block 613, thereby squeezing the positioning block 613, causing it to rotate downward along the support tube 612, and then pressing the pipeline to prevent its position from shifting under inertia conditions during the movement, thereby further improving the stability of the pipeline during movement.

[0038] like Figure 1-Figure 3 and Figure 10-11 As shown, a conveying device 2 is arranged on the top of the mounting plate 1, the outer surface of the movable frame 502 contacts the outer surface of the conveying device 2, a plurality of second iron blocks 3 are arranged on the outer surface of one of the conveyor belts in the conveying device 2, a third iron block 4 is arranged on the outer surface of another conveyor belt in the conveying device 2, the clamping assembly 7 includes a pressure-resistant frame 701, two cylinders 702 are arranged near the center of the top of the mounting plate 1, the tops of the two cylinders 702 are fixedly connected to the bottom of the pressure-resistant frame 701, a second forward and reverse motor 703 is fixedly installed on the outer surface of the pressure-resistant frame 701 near the bottom by screws, the output shaft of the second forward and reverse motor 703 is fixedly connected to a bidirectional threaded tube 704, the two ends of the bidirectional threaded tube 704 are respectively movably penetrated to the opposite exteriors of the pressure-resistant frame 701, and the bidirectional threaded tube 704 is fixedly connected to the outer surface of the pressure-resistant frame 701. Two moving rods 705 are provided with a threaded sleeve on the outer surface, and a third forward and reverse motor 706 is fixedly installed on the outer surface of the pressure-resistant frame 701 near the top by screws. The output shaft of the third forward and reverse motor 706 is fixedly connected with a rotating tube 707. The two ends of the rotating tube 707 are respectively movable and penetrated to the opposite outer sides of the pressure-resistant frame 701. The two ends of the rotating tube 707 are respectively movable and penetrated to the outside of the two moving rods 705. Two clamping blocks 708 are rotatably sleeved on the outer surface of the rotating tube 707. The outer surfaces of the two clamping blocks 708 are slidably connected to the inner wall of the rotating tube 707. The relative inner walls of the two clamping blocks 708 are respectively in contact with the opposite outer surfaces of the two moving rods 705. Anti-sliding blocks 709 are provided on the outer surfaces of the two clamping blocks 708. There are card grooves 710 at the tops of the two moving rods 705 near one side edge.

[0039] In this embodiment, in the process of fixing and clamping the pipe with the welding pipe fixing clamp, in order to prevent the pipe from being too long or too short and causing low clamping strength, when the pipe is long, the second forward and reverse motor 703 is started to drive the bidirectional threaded tube 704 to rotate, thereby driving the two moving rods 705 to move toward or oppositely, and then driving the two clamping blocks 708 to move toward or oppositely, thereby further strengthening the clamping of pipes of different lengths.

[0040] The use method and working principle of the device: In the process of mechanical manufacturing, when a cylindrical steel pipe needs to be welded, the steel pipe to be welded is first placed inside the arc rod 611, and then the conveying device 2 is started. Figure 1As shown, the conveying device 2 is composed of two conveyor belts, the purpose of which is to facilitate the clamping of the pipeline in the later stage. Then the first electromagnet 503 is electrically connected to the external power supply to generate a magnetic field to adsorb the third iron block 4. When the first electromagnet 503 is energized, the third iron block 4 can be adsorbed. At the same time, the laser scanner 504 is started through the external control system to scan the pipeline and detect the center line position of the pipeline. The conveying device 2 drives the third iron block 4 to move along the direction of the limit rod 501, and then drives the moving frame 502 to move, thereby driving the laser scanner 504 to move. The outer surface of the pipeline is scanned in all directions through the movement of the laser scanner 504, so as to analyze and find the center line position of the pipeline. Among them, the conveying device 2 can carry The conveyor belt is driven to switch forward and backward, thereby only driving the third iron block 4 to move on the top of the conveyor device 2, and will not rotate to the bottom of the conveyor device 2. When the laser scanner 504 detects the center line position of the pipeline, the signal is transmitted to the external control system, and the conveyor device 2 is started again through the external control system, driving the laser scanner 504 to move to the center line position of the clamping component 7, and at the same time starting the first forward and reverse motor 607 to drive the rotating shaft 608 to rotate, thereby driving the gear 609 to rotate, and then the gear row 604 moves downward, thereby driving the support block 610 to move downward, and then the second electromagnet 614 moves downward and contacts the outer surfaces of the plurality of second iron blocks 3. At the same time, the second electromagnet 614 is electrically connected to the external power supply, so that It adsorbs multiple second iron blocks 3, so that the second iron block 3 drives the second electromagnet 614 to move during its movement, thereby driving the arc rod 611 to move, and finally driving the pipeline and the laser scanner 504 to move synchronously to the center line position of the clamping assembly 7. When the pipeline and the laser scanner 504 move to the center line position of the clamping assembly 7, the second electromagnet 614 is disconnected from the external power supply, and the first forward and reverse motor 607 is started again to drive the gear 609 to rotate in the opposite direction, thereby driving the gear row 604 to move upward, so that the support block 610 is separated from the top of the conveying device 2, that is, the positioning of the pipeline is completed. When the second electromagnet 614 is disconnected from the external power supply, the extrusion plate 619 will be restored under the elastic action of the spring 617. The two springs 623 are reset under their own elastic force, driving the support tube 612 to rotate in the opposite direction, and then driving the positioning block 613 to rotate in the opposite direction, so that its outer surface is separated from the outer surface of the pipeline, and the pressing and clamping of the pipeline is ended. Then the two cylinders 702 can be started to extend, driving the pressure-resistant frame 701 to move upward, and then driving the two slots 710 to move upward until the two slots 710 and the arc rod 611 are in a concentric circle position, wherein the inner diameter of the slot 710 is consistent with the inner diameter of the arc rod 611, so that the outer surface of the pipeline is in contact with the inner walls of the two slots 710 respectively, and then the third forward and reverse motor 706 can be started.The rotating tube 707 is driven to rotate, thereby driving the two clamping blocks 708 to rotate toward the outer surface of the pipe. The rotation of the two clamping blocks 708 drives the anti-sliding block 709 to rotate toward the direction of the pipe, thereby clamping and fixing the pipe. The anti-sliding block 709 is made of rubber material with anti-slip effect, which can further improve the clamping and fixing strength of the pipe. By aligning the center line of the pipe with the center line position of the clamping assembly 7, the force of the welding pipe fixing clamp to clamp the pipe is uniform. When the pipe is clamped, the first forward and reverse motor 607 is started again to drive the tooth row 604 to move downward, thereby driving the arc rod 611 to move downward, so that the arc rod 611 is completely separated from the pipe, and then the multi-stage electric telescopic rod 10 is started to shorten it, driving the movable rod 601 along the limiting groove 9 moves toward the edge of the mounting plate 1, thereby separating it from the arc rod 611. In the process of fixing and clamping the pipe with the welding pipe fixing clamp, in order to prevent the pipe from being too long or too short, resulting in a low clamping strength, when the pipe is long, the second forward and reverse motor 703 is started to drive the bidirectional threaded tube 704 to rotate, thereby driving the two moving rods 705 to move toward or oppositely, and then driving the two clamping blocks 708 to move toward or oppositely, thereby further strengthening the clamping of pipes of different lengths. Among them, the external control system is electrically connected to the conveying device 2, the first electromagnet 503, the laser scanner 504, the first forward and reverse motor 607, the second electromagnet 614, the cylinder 702, the second forward and reverse motor 703, the third forward and reverse motor 706 and the multi-stage electric telescopic rod 10.

[0041] The wiring diagram of the conveying device 2, the first electromagnet 503, the laser scanner 504, the first forward and reverse motor 607, the second electromagnet 614, the cylinder 702, the second forward and reverse motor 703, the third forward and reverse motor 706 and the multi-stage electric telescopic rod 10 in the present invention belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the conveying device 2, the first electromagnet 503, the laser scanner 504, the first forward and reverse motor 607, the second electromagnet 614, the cylinder 702, the second forward and reverse motor 703, the third forward and reverse motor 706 and the multi-stage electric telescopic rod 10 are no longer explained in detail.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding fixture for mechanical manufacturing, comprising a mounting plate (1), wherein a clamping assembly (7) is arranged near the center of the top of the mounting plate (1); Features: A detection assembly (5) is arranged at the top of the mounting plate (1) near one side edge, the detection assembly (5) comprising a limit rod (501), the interior of the limit rod (501) being slidably connected to a moving frame (502), a first electromagnet (503) being arranged on the inner top surface of the moving frame (502), and a laser scanner (504) being arranged on the top of the moving frame (502); A correction component (6) is arranged at the top of the mounting plate (1) near the other side edge, the correction component (6) comprising a movable rod (601), the interior of the movable rod (601) being slidably connected to a hollow plate (602), the interior of the hollow plate (602) being slidably connected to a limiting plate (603), the top of the limiting plate (603) being fixedly mounted with a tooth row (604), the outer surface of the hollow plate (602) being fixedly mounted with a mounting frame (605), the inner wall of the mounting frame (605) being fixedly connected to a bearing frame (606), the bearing frame (606) A first forward and reverse motor (607) is fixedly installed on the outer surface of the gear train (604) by screws, the output shaft of the first forward and reverse motor (607) is fixedly connected to a rotating shaft (608), a gear (609) is fixedly sleeved on the outer surface of the rotating shaft (608), a support block (610) is fixedly installed on the top of the gear row (604), an arc rod (611) is fixedly installed on the outer surface of the support block (610), a support tube (612) is movably embedded between the relative inner walls of the support block (610), and a positioning block (613) is fixedly sleeved on the outer surface of the support tube (612).

2. The welding fixture for mechanical manufacturing according to claim 1, characterized in that: Hollow sleeves (622) are fixed to opposite outer surfaces of the support block (610), coil springs (623) are arranged inside the two hollow sleeves (622), a second electromagnet (614) is arranged on the inner wall of the support block (610), and first sliding grooves (615) are arranged on the top of the support block (610) near the two side edges.

3. The welding fixture for mechanical manufacturing according to claim 2, characterized in that: A telescopic tube (616) is arranged on the outer surface of the mounting frame (605) near the top, a spring (617) is arranged on the outer surface of the telescopic tube (616), one end of the telescopic tube (616) is fixedly connected to an extrusion plate (619), a second slide groove (621) is arranged on the top of the mounting frame (605) near the two side edges, a movable frame (618) is slidably connected between the insides of the two second slide grooves (621), and a first iron block (620) is arranged inside the movable frame (618).

4. The welding fixture for mechanical manufacturing according to claim 3 is characterized in that: The bottom of the limiting rod (501) is fixedly connected to the top of the mounting plate (1), a limiting groove (9) is provided on the top of the mounting plate (1), an auxiliary block (8) is fixedly installed on the outer surface of the mounting plate (1), a multi-stage electric telescopic rod (10) is provided on the outer surface of the auxiliary block (8), and the outer surface of the movable rod (601) is slidably connected to the inner wall of the limiting groove (9).

5. The welding fixture for mechanical manufacturing according to claim 4, characterized in that: One end of the multi-stage electric telescopic rod (10) is fixedly connected to the outer surface of the movable rod (601), the bottom of the gear row (604) is movable and penetrates to the outside of the hollow plate (602), and the two ends of the rotating shaft (608) are respectively movable and penetrate to the opposite outsides of the supporting frame (606), and the outer surface of the gear row (604) is meshed and connected with the outer surface of the gear (609).

6. The welding fixture for mechanical manufacturing according to claim 5, characterized in that: The two ends of the support tube (612) are movably connected to the outside of the two hollow sleeves (622), and the outer surface of the support tube (612) is fixedly connected to the outer surfaces of the two coil springs (623) near the two ends. One end of the spring (617) is fixedly connected to the outer surface of the mounting frame (605), and the other end of the spring (617) is fixedly connected to the outer surface of the extrusion plate (619). The bottom of the extrusion plate (619) is fixedly connected to the top of the movable frame (618).

7. The welding fixture for mechanical manufacturing according to claim 6, characterized in that: A conveying device (2) is arranged on the top of the mounting plate (1), the outer surface of the movable frame (502) is in contact with the outer surface of the conveying device (2), a plurality of second iron blocks (3) are arranged on the outer surface of one of the conveyor belts in the conveying device (2), and a third iron block (4) is arranged on the outer surface of another conveyor belt in the conveying device (2).

8. The welding fixture for mechanical manufacturing according to claim 7, characterized in that: The clamping assembly (7) includes a pressure-resistant frame (701), two cylinders (702) are arranged near the center of the top of the mounting plate (1), the top ends of the two cylinders (702) are fixedly connected to the bottom of the pressure-resistant frame (701), a second forward and reverse motor (703) is fixedly installed on the outer surface of the pressure-resistant frame (701) near the bottom by screws, the output shaft of the second forward and reverse motor (703) is fixedly connected to a bidirectional threaded tube (704), the two ends of the bidirectional threaded tube (704) are respectively movably penetrated to the opposite outside of the pressure-resistant frame (701), and two moving rods (705) are threadedly sleeved on the outer surface of the bidirectional threaded tube (704).

9. The welding fixture for mechanical manufacturing according to claim 8, characterized in that: A third forward and reverse motor (706) is fixedly installed on the outer surface of the pressure-resistant frame (701) near the top by screws, and the output shaft of the third forward and reverse motor (706) is fixedly connected to a rotating tube (707), and the two ends of the rotating tube (707) are respectively movable and penetrated to the opposite outsides of the pressure-resistant frame (701), and the two ends of the rotating tube (707) are respectively movable and penetrated to the outside of the two moving rods (705), and two clamping blocks (708) are rotatably sleeved on the outer surface of the rotating tube (707).

10. The welding fixture for mechanical manufacturing according to claim 9, characterized in that: The outer surfaces of the two clamping blocks (708) are slidably connected to the inner wall of the rotating tube (707), and the opposite inner walls of the two clamping blocks (708) are respectively in contact with the opposite outer surfaces of the two moving rods (705). The outer surfaces of the two clamping blocks (708) are provided with anti-sliding blocks (709), and the tops of the two moving rods (705) are provided with grooves (710) near one side edge.

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