Pipeline groove grinding machine tool and using method

Abstract

The invention discloses a pipeline groove grinding machine tool and a using method. The pipeline groove grinding machine tool comprises a gantry base, a grinding mechanism, a lifting mechanism and a transverse moving mechanism. A transverse moving mechanism is arranged at the upper end of the transverse moving mechanism; a lifting mechanism is arranged at one end of the transverse moving mechanism; a grinding mechanism is arranged at one end of the lifting mechanism; the grinding mechanism comprises a plate, a steering engine is arranged at one end of the plate, the output end of the steering engine is connected with a fixing frame, a fourth motor is arranged on the fixing frame, the output end of the fourth motor is connected with one end of a belt, the other end of the belt is connected with a shaft core, one end of the shaft core is connected with a grinding head, and the other end of the shaft core is connected with a cylinder barrel. One end of the cylinder barrel is connected with the arc-shaped guide rail which is installed on the plate. The pipeline groove grinding device is simple in structure, capable of conducting groove grinding on a pipeline and achieving groove grinding at different angles, high in adaptability and capable of guaranteeing that the groove angle and width are uniform and the groove quality is stable.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline grinding equipment, and in particular relates to a pipeline groove grinding machine tool and a use method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] For the welding of pressure-resistant pipelines with strict requirements, the welding end face needs to be chamfered before welding. For welding, this chamfer is called a welding groove. For welding grooves, the groove angle is particularly important. The groove angle is an important welding process factor that affects the weld formation, welding dilution rate, and shape of the fusion zone. It even affects the stability of the welding arc. When making grooves on large-diameter pipes, it is difficult to maintain a consistent angle and width.

[0004] Patent No. CN106078396B discloses a multi-axis linkage grinding device, including a chassis, an X-axis motion mechanism, a Y-axis motion mechanism, a Z-axis motion mechanism, an R-axis motion mechanism, a W-axis motion mechanism, a V-axis motion mechanism, a grinding mechanism and a workpiece clamping mechanism; the special feature is that the X-axis motion mechanism is composed of an X-axis crossbeam, an X-axis motor and an X-axis slider connecting plate, the X-axis crossbeam is arranged on the chassis, two X-axis guide rails parallel to each other are fixed at intervals on the X-axis, the X-axis slider connecting plate is arranged on the two X-axis guide rails, and the X-axis motor drives the X-axis slider connecting plate to move along the X-axis guide rail through the X-axis lead screw.

[0005] Although this patent can achieve grinding, it is unable to achieve multi-angle grinding when grinding the pipe, and the grinding angle cannot be effectively adjusted. However, when grinding different pipes, it is necessary to grind the grooves at different angles and ensure that the grinding surface is flat. Therefore, there is a need for a device that can automatically grind the grooves of the pipe to ensure that the groove angle and width are uniform and the groove quality is stable. Summary of the invention

[0006] In view of the above problems, the present invention provides a pipe bevel grinding machine tool, which can perform bevel grinding on pipes and realize bevel grinding at different angles, has strong adaptability, and ensures uniform bevel angle and width and stable bevel quality.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A pipeline groove grinding machine tool comprises a gantry base, a grinding mechanism, a lifting mechanism and a transverse movement mechanism; a workbench is arranged at the upper end of the gantry base, column mechanisms are arranged at both ends of the workbench, a beam mechanism is arranged at the upper end of the column mechanism, a transverse movement mechanism is arranged at the upper end of the beam mechanism, a lifting mechanism is arranged at one end of the transverse movement mechanism, and a grinding mechanism is arranged at one end of the lifting mechanism;

[0009] The grinding mechanism includes a plate, a steering gear is arranged at one end of the plate, the output end of the steering gear is connected to a fixed frame, a fourth motor is arranged on the fixed frame, the output end of the fourth motor is connected to one end of a belt, the other end of the belt is connected to an axis core, one end of the axis core is connected to a grinding head, the other end of the axis core is connected to a cylinder, one end of the cylinder is connected to an arc guide rail, and the arc guide rail is installed on the plate.

[0010] Furthermore, a first motor fixing bracket is provided at one end of the gantry base, a first motor is mounted on the first motor fixing bracket, an output end of the first motor is connected to a first lead screw, and the first lead screw passes through the middle of the workbench; first guide rails are provided at both ends of the gantry base, and an upper end of the first guide rail is movably connected to the workbench.

[0011] Furthermore, a chuck is arranged at the upper end of the workbench, the chuck is fixedly connected to the workbench, a plurality of clamps are arranged at intervals on the chuck, and the clamps are arranged on the peripheral side of the chuck.

[0012] Furthermore, the lifting mechanism includes a second motor fixing bracket, a second motor is installed on the second motor fixing bracket, an output end of the second motor is connected to the screw, a vertical screw nut interface plate is arranged on the screw, and a first screw nut is arranged at one end of the vertical screw nut interface plate.

[0013] Furthermore, the end of the lead screw is connected to the lower end of the plate, and guide rail welding plates are arranged at both ends of the inner side of the plate, and a second guide rail is arranged on the guide rail welding plate.

[0014] Furthermore, one end of the lifting mechanism is connected to the transverse movement mechanism, and the transverse movement mechanism includes a transverse movement frame welding plate, a first buckle is set at the front of the transverse movement welding plate, a second buckle is set at the upper end of the transverse movement welding plate, and a third buckle is set at the lower end of the transverse movement welding plate.

[0015] Furthermore, the crossbeam mechanism is arranged on the column structure, and the column structure is symmetrically arranged; the crossbeam mechanism includes a third motor fixing bracket, a third motor is installed on the third motor fixing bracket, and an output end of the third motor is connected to the lead screw.

[0016] Furthermore, a horizontal screw nut interface plate is provided on the screw, a second screw nut is provided at one end of the horizontal screw nut interface plate, and one end of the screw is provided on a bearing seat; the bearing seat and the third motor fixing bracket are both installed on one side of the beam body, an upper guide rail is provided on the upper part of the beam body, and a side guide rail is provided on the side part of the beam body, the upper guide rail is clamped with the first buckle, and the side guide rail is clamped with the third buckle.

[0017] A method for using a pipe groove grinding machine tool comprises the following steps:

[0018] Before placing the workpiece, the threaded disk rotates, and the four clamps are driven to move radially outward along the four-jaw chuck through the vortex thread structure at the joint between the four clamps and the threaded disk. At this time, the workpiece is placed in the four-jaw chuck to complete the placement of the workpiece;

[0019] After the workpiece is placed, the threaded disk rotates in the opposite direction, and the four clamps are driven in the opposite direction to move radially inward along the four-jaw chuck through the vortex thread structure at the joint between the four clamps and the threaded disk, until the workpiece is supported so that the clamps can no longer move radially inward, and the workpiece is fixed at this time;

[0020] When processing the workpiece, the chuck and the worktable move in the X direction, and the four-jaw chuck and the worktable are fixed by T-slots. When the work starts, the motor on the gantry base starts to work, the motor drives the lead screw to rotate, and the lead screw drives the worktable to move in the X-axis direction;

[0021] The gantry structure moves in the Y-axis direction. At this time, the motor in the crossbeam mechanism starts to drive the lead screw to rotate, and the lead screw drives the lead screw nut to move. When the motor starts working, it can drive the lead screw through the horizontal lead screw nut interface plate to drive the transverse movement mechanism to move in the Y-axis on the guide rail, so that the transverse movement mechanism drives the lifting mechanism and the grinding mechanism to dock with the workpiece in the Y-axis;

[0022] The lifting mechanism moves in the Z-axis direction, the second buckle in the transverse mechanism is connected to the guide rail of the lifting mechanism, the lifting mechanism motor starts to work, the motor drives the lead screw to rotate, and the lead screw drives the lead screw nut to translate. When the lifting mechanism motor starts to work, the lifting mechanism can move in the Z-axis direction along the guide rail of the transverse mechanism, so that the grinding mechanism can dock with the workpiece in the Z-axis direction;

[0023] After the position movement is completed, the grinding mechanism is started, the motor in the grinding mechanism starts working, the spindle of the grinder is connected to the motor through a belt, the motor rotates to transmit power to the spindle through the belt, then the spindle starts to rotate and drives the grinding head to rotate, and the grinding work is completed.

[0024] Furthermore, in the grinding mechanism, a servo is provided outside the plate, and an arc guide rail is provided on the plate. When the servo starts working, the grinding mechanism is adjusted on the arc guide rail by plus or minus 15° to adapt to the groove grinding operations at different angles. After the grinding is completed, the workpiece is unloaded, and the threaded disk is rotated. The four clamps fit the four-jaw chuck and move radially outward through the vortex thread structure to release the workpiece, thereby completing the workpiece unloading work.

[0025] Compared with the prior art, the present invention has the following advantages and positive effects:

[0026] The present invention realizes the position adjustment of the workpiece in the X-axis, Y-axis and Z-axis directions through the lifting mechanism, the lateral movement mechanism and the crossbeam mechanism, and then performs grinding through the grinding mechanism. The grinding mechanism can realize the angle adjustment, and then realizes the grinding of grooves at different angles, that is, adding a pitch degree of freedom to realize the angle adjustment of the end grinding device, adapting to the grinding of grooves at different angles; the omnidirectional movement on the working platform is realized through three screw guide rail mechanisms, and the workbench part realizes high-precision and high-torque micro-feeding through the reducer to perform surface removal operations. The grinding part is driven by a V-belt to drive the grinding wheel to rotate to realize the grinding function. It can grind the groove of the pipeline and realize the grinding of grooves at different angles, with strong adaptability, and ensure that the groove angle and width are uniform and the groove quality is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] Figure 1 It is a three-dimensional structural diagram of the pipeline groove grinding machine tool of the present invention;

[0029] Figure 2 This is an overall view of the gantry base and the workbench of the present invention;

[0030] Figure 3 It is a structural view of the chuck of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the grinding mechanism of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the transverse movement mechanism of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the crossbeam and the column of the present invention;

[0035] In the figure: 1, gantry base; 11, first motor; 12, first motor fixing bracket; 13, first guide rail; 14, first lead screw;

[0036] 2. Workbench; 3. Chuck; 31. Fixture;

[0037] 4. grinding mechanism; 41. grinding head; 42. shaft core; 43. belt; 44. steering gear; 45. plate; 46. fourth motor; 47. cylinder; 48. arc guide rail;

[0038] 5. Lifting mechanism; 51. Second motor; 52. Second motor fixing bracket; 53. Second guide rail; 54. Vertical lead screw nut interface plate; 55. First lead screw nut; 56. Guide rail welding plate;

[0039] 6. Transverse movement mechanism; 61. First buckle; 62. Second buckle; 63. Transverse movement frame welding plate; 64. Third buckle;

[0040] 7. Beam mechanism; 71. Bearing seat; 72. Upper guide rail; 73. Lead screw; 74. Second lead screw nut; 75. Horizontal lead screw nut interface plate; 76. Third motor fixing bracket; 77. Third motor; 78. Side guide rail; 79. Beam body;

[0041] 8. Column structure. DETAILED DESCRIPTION

[0042] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0043] Although the grinding device of patent number CN106078396B can achieve grinding, it cannot achieve multi-angle grinding when grinding the pipe, and the grinding angle cannot be effectively adjusted. However, when grinding different pipes, it is necessary to grind the grooves of different angles and ensure that the grinding surface is flat. Therefore, there is a need for a device that can automatically grind the grooves of the pipe to ensure that the groove angle and width are uniform and the groove quality is stable.

[0044] Embodiment 1:

[0045] The present invention is described in detail below in conjunction with the accompanying drawings. The present embodiment discloses a pipe groove grinding machine tool, such as Figure 1As shown, it includes a gantry base 1, a grinding mechanism 4, a lifting mechanism 5 and a transverse mechanism 6; a workbench 2 is arranged at the upper end of the gantry base 1, column mechanisms are arranged at both ends of the workbench 2, a beam mechanism 7 is arranged at the upper end of the column mechanism, a transverse mechanism 6 is arranged at the upper end of the beam mechanism 7, a lifting mechanism 5 is arranged at one end of the transverse mechanism 6, and a grinding mechanism 4 is arranged at one end of the lifting mechanism 5; the transverse mechanism 6 is connected through a vertical screw nut interface plate 54, and this loading plate is welded to the transverse mechanism 6.

[0046] like Figure 4 As shown, the grinding mechanism 4 includes a plate 45, a steering gear 44 is arranged at one end of the plate 45, the output end of the steering gear 44 is connected to a fixed frame, a fourth motor 46 is arranged on the fixed frame, the output end of the fourth motor 46 is connected to one end of a belt 43, the other end of the belt 43 is connected to a shaft core 42, one end of the shaft core 42 is connected to a grinding head 41, the other end of the shaft core 42 is connected to a cylinder 47, one end of the cylinder 47 is connected to an arc guide rail 48, and the arc guide rail 48 is installed on the plate 45.

[0047] The position adjustment of the workpiece in the X-axis, Y-axis and Z-axis directions is achieved through the lifting mechanism 5, the lateral movement mechanism 6 and the crossbeam mechanism 7, and then the workpiece is polished through the polishing mechanism 4. The polishing mechanism 4 can adjust the angle, and then the polishing of grooves at different angles is achieved, that is, a pitch degree of freedom is added to achieve the angle adjustment of the end polishing device to adapt to the polishing of grooves at different angles; the omnidirectional movement on the working platform is achieved through three screw guide mechanisms, and the workbench 2 part achieves high-precision and high-torque micro-feeding through the reducer to perform surface removal operations. The polishing part is driven by a V-belt to drive the grinding wheel to rotate to achieve the polishing function. It can perform groove polishing on the pipeline and achieve groove polishing at different angles, with strong adaptability, and ensure that the groove angle and width are uniform and the groove quality is stable.

[0048] like Figure 2 As shown, a first motor fixing bracket 12 is provided at one end of the gantry base 1, a first motor 11 is mounted on the first motor fixing bracket 12, an output end of the first motor 11 is connected to a first lead screw 14, and the first lead screw 14 runs through the middle of the workbench 2; first guide rails 13 are provided at both ends of the gantry base 1, and the upper end of the first guide rail 13 is movably connected to the workbench 2. A chuck 3 is provided at the upper end of the workbench 2, the chuck 3 is fixedly connected to the workbench 2, a plurality of clamps 31 are provided on the chuck 3 at intervals, and the clamps 31 are provided on the peripheral side of the chuck 3.

[0049] like Figure 3As shown, the clamping process of the workpiece is completed by the chuck 3, the fixture 31 and the threaded disc. The threaded disc rotates, and the fixture 31 moves radially through the spiral thread line close to the chuck 3. The outward / inward movement of the fixture 31 depends on whether the threaded disc is counterclockwise or clockwise, thereby achieving the clamping of the workpiece.

[0050] The movement of the workbench 2 is completed by the gantry base 1, the first motor 11, the first motor fixing bracket 12, the first guide rail 13, and the first lead screw 14. The specific transmission process is that the first motor 11 starts to work, and the motor transmits power to the first lead screw 14, and the first lead screw 14 is connected with the lead screw nut in the workbench 2, thereby driving the workbench 2 to move on the first guide rail 13, the first motor 11 is installed on the first motor fixing bracket 12, the fixing bracket and the guide rail are connected to the gantry base 1 by bolts, and the four-jaw chuck 3 is fixed to the workbench 2 by a T-slot.

[0051] like Figure 5 As shown, the lifting mechanism 5 includes a second motor fixing bracket 52, a second motor 51 is mounted on the second motor fixing bracket 52, the output end of the second motor 51 is connected to the lead screw, a vertical lead screw nut interface plate 54 is provided on the lead screw, and a first lead screw nut 55 is provided at one end of the vertical lead screw nut interface plate 54. The end of the lead screw is connected to the lower end of the plate 45, and guide rail welding plates 56 are provided at both ends of the inner side of the plate 45, and a second guide rail 53 is provided on the guide rail welding plate 56.

[0052] The second motor 51 starts to work, and the second motor 51 transfers power to the screw. The screw rotates, driving the first screw nut 55 to move horizontally. The vertical screw nut interface plate 54 is connected to the screw nut by bolts. The vertical screw nut interface plate 54 is welded to the transverse welding plate in the transverse mechanism 6. The second motor 51 is installed on the second motor fixing bracket 52, and the second motor fixing bracket 52 is welded to the bottom plate of the lifting mechanism 5. When the motor starts to work, the entire lifting mechanism 5 can move up and down on the Z axis along the second guide rail 53.

[0053] The vertical screw nut interface plate 54 is welded to the transverse movement mechanism 6, and the first screw nut 55 is connected to the vertical screw nut interface plate 54 by bolts. The transverse movement mechanism 6 is fixed in the vertical direction. When the screw is started, since the vertical screw nut interface plate 54 is stationary, the screw converts the rotation into linear motion through the first screw nut 55 to complete the lifting action.

[0054] like Figure 6 and Figure 7As shown, one end of the lifting mechanism 5 is connected to the transverse mechanism 6, and the transverse mechanism 6 includes a transverse frame welding plate 63, a first buckle 61 is arranged at the front of the transverse welding plate, a second buckle 62 is arranged at the upper end of the transverse welding plate, and a third buckle 64 is arranged at the lower end of the transverse welding plate. The crossbeam mechanism 7 is arranged on the column structure 8, and the column structure 8 is symmetrically arranged; the crossbeam mechanism 7 includes a third motor 77 fixing bracket 76, and the third motor 77 is installed on the third motor 77 fixing bracket 76, and the output end of the third motor 77 is connected to the lead screw 73. A horizontal lead screw nut interface plate 75 is provided on the lead screw 73, a second lead screw nut 74 is provided at one end of the horizontal lead screw nut interface plate 75, and one end of the lead screw 73 is provided on the bearing seat 71; the bearing seat 71 and the third motor 77 fixing bracket 76 are both installed on one side of the beam body 79, an upper guide rail 72 is provided on the upper part of the beam body 79, and a side guide rail 78 is provided on the side of the beam body 79, the upper guide rail 72 is clamped with the first buckle 61, and the side guide rail 78 is clamped with the third buckle 64.

[0055] The third motor 77 on the crossbeam mechanism 7 starts to start, and transmits power to the lead screw, which is connected to the second lead screw nut 74. The second lead screw nut 74 is connected to the horizontal lead screw nut interface plate 75 by bolts, the lead screw rotates, the lead screw nut and the horizontal lead screw nut interface plate 75 move on the lead screw, the horizontal lead screw nut interface plate 75 is welded to the traverse mechanism 6, the first buckle 61 and the third buckle 64 are connected to the upper guide rail 72 and the side guide rail 78 respectively, at this time, the traverse mechanism 6 can move along the two guide rails in the Y-axis direction.

[0056] The horizontal lead screw nut interface plate 75 is welded to the transverse frame welding plate 63 of the transverse mechanism 6, and the second lead screw nut 74 is connected to the horizontal interface plate by bolts. Therefore, when the transverse lead screw rotates, it will drive the second lead screw nut 74 and the transverse frame to move horizontally.

[0057] In order to enable the guide rails to face loads in two directions at the same time, the two guide rails are placed in front of and on the beam respectively. The third motor 77 fixing bracket 76 is welded to the beam mechanism 7. The beam mechanism 7 is connected to the column structure 8 by bolts, and the column structure 8 is fixed to the base by bolts.

[0058] Embodiment 2:

[0059] A method for using a pipe groove grinding machine tool comprises the following steps:

[0060] Before placing the workpiece, the threaded disk rotates, and the four clamps 31 are driven to move radially outward along the four-jaw chuck 3 through the vortex thread structure at the joint between the four clamps 31 and the threaded disk. At this time, the workpiece is placed in the four-jaw chuck 3 to complete the placement of the workpiece;

[0061] After the workpiece is placed, the threaded disk rotates in the opposite direction, and the four clamps 31 are driven in the opposite direction to move radially inward along the four-jaw chuck 3 through the vortex thread structure at the joint between the four clamps 31 and the threaded disk, until the clamps 31 are pressed against the workpiece so that they can no longer move radially inward, and the workpiece is fixed at this time;

[0062] When processing a workpiece, the chuck 3 and the worktable 2 move in the X direction, and the four-jaw chuck 3 and the worktable 2 are fixed by a T-slot. When starting to work, the motor on the gantry base 1 starts to work, and the motor drives the lead screw to rotate, and the lead screw drives the worktable 2 to move in the X-axis direction, wherein the lead screw is connected to the worktable 2 through a lead screw nut, thereby providing power for the worktable 2 to move. When the worktable 2 moves to the front of the grinding mechanism 4, the motor stops rotating, and the worktable 2 stops moving;

[0063] The gantry structure moves in the Y-axis direction. At this time, the motor in the beam mechanism 7 starts to drive the lead screw to rotate. The motor is fixed on the click support frame, the support frame is welded to the beam, the lead screw drives the lead screw nut to move, the horizontal lead screw nut interface plate 75 is connected to the lead screw nut by bolts, the horizontal lead screw nut interface plate 75 is welded to the transverse frame welding plate 63 of the transverse mechanism 6, the first buckle 61 and the third buckle 64 of the transverse mechanism 6 are respectively connected to the upper guide rail 72 and the side guide rail 78 of the beam. At this time, when the motor starts working, it can drive the lead screw through the horizontal lead screw nut interface plate 75 to drive the transverse mechanism 6 to move on the guide rail in the Y-axis, so that the transverse mechanism 6 drives the lifting mechanism 5 and the grinding mechanism 4 to dock with the workpiece in the Y-axis;

[0064] The lifting mechanism 5 moves in the Z-axis direction, the second buckle 62 in the transverse mechanism 6 is connected to the guide rail of the lifting mechanism 5, the motor of the lifting mechanism 5 starts to work, the motor drives the lead screw to rotate, the lead screw drives the lead screw nut to translate, the lead screw nut is connected to the vertical lead screw nut interface plate 54 by bolts, and the vertical lead screw nut interface plate 54 is welded to the transverse frame welding plate 63 in the transverse mechanism 6. When the motor of the lifting mechanism 5 starts to work, the lifting mechanism 5 can move along the guide rail of the transverse mechanism 6 in the Z-axis direction, so that the grinding mechanism 4 can dock with the workpiece in the Z-axis direction;

[0065] After the position movement is completed, the grinding mechanism 4 is started, and the motor in the grinding mechanism 4 starts to work. The main shaft of the grinder is connected to the motor through the belt 43. The motor rotates to transmit power to the main shaft through the belt 43. At this time, the main shaft starts to rotate and drives the grinding head 41 to rotate. The motor and the cylinder 47 are connected to the plate 45 by bolts. The plate 45 is welded and fixed to the bottom plate of the lifting mechanism 5, and the grinding work is completed.

[0066] A steering gear 44 is provided outside the plate 45 in the grinding mechanism 4, and an arc guide rail 48 is provided on the plate 45. When the steering gear 44 starts to work, the grinding mechanism 4 is adjusted on the arc guide rail 48 by plus or minus 15° to adapt to the groove grinding operation at different angles; after the grinding is completed, the workpiece is unloaded, and the threaded disk is rotated. The four clamps 31 are attached to the four-jaw chuck 3 through the spiral thread structure and move radially outward to release the workpiece, completing the workpiece unloading work.

[0067] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A pipeline groove grinding machine, characterized in that: It includes a gantry base, a grinding mechanism, a lifting mechanism and a transverse movement mechanism; a workbench is arranged at the upper end of the gantry base, column mechanisms are arranged at both ends of the workbench, a beam mechanism is arranged at the upper end of the column mechanism, a transverse movement mechanism is arranged at the upper end of the beam mechanism, a lifting mechanism is arranged at one end of the transverse movement mechanism, and a grinding mechanism is arranged at one end of the lifting mechanism; The grinding mechanism includes a plate, a steering gear is arranged at one end of the plate, the output end of the steering gear is connected to a fixed frame, a fourth motor is arranged on the fixed frame, the output end of the fourth motor is connected to one end of a belt, the other end of the belt is connected to an axis core, one end of the axis core is connected to a grinding head, the other end of the axis core is connected to a cylinder, one end of the cylinder is connected to an arc guide rail, and the arc guide rail is installed on the plate.

2. A pipeline groove grinding machine tool as claimed in claim 1, characterized in that: A first motor fixing bracket is arranged at one end of the gantry base, a first motor is mounted on the first motor fixing bracket, an output end of the first motor is connected to a first lead screw, and the first lead screw runs through the middle of the workbench; first guide rails are arranged at both ends of the gantry base, and an upper end of the first guide rail is movably connected to the workbench.

3. A pipeline groove grinding machine tool as claimed in claim 1, characterized in that: A chuck is arranged at the upper end of the workbench, the chuck is fixedly connected to the workbench, a plurality of clamps are arranged at intervals on the chuck, and the clamps are arranged on the peripheral side of the chuck.

4. A pipeline groove grinding machine tool as claimed in claim 1, characterized in that: The lifting mechanism includes a second motor fixing bracket, a second motor is installed on the second motor fixing bracket, an output end of the second motor is connected to a lead screw, a vertical lead screw nut interface plate is arranged on the lead screw, and a first lead screw nut is arranged at one end of the vertical lead screw nut interface plate.

5. A pipeline groove grinding machine tool as claimed in claim 4, characterized in that: The end of the lead screw is connected to the lower end of the plate, and guide rail welding plates are arranged at both ends of the inner side of the plate, and a second guide rail is arranged on the guide rail welding plates.

6. A pipeline groove grinding machine tool as claimed in claim 1, characterized in that: One end of the lifting mechanism is connected to the transverse mechanism, and the transverse mechanism includes a transverse frame welding plate. A first buckle is set at the front of the transverse welding plate, a second buckle is set at the upper end of the transverse welding plate, and a third buckle is set at the lower end of the transverse welding plate.

7. A pipeline groove grinding machine tool as claimed in claim 6, characterized in that: The crossbeam mechanism is arranged on the column structure, and the column structure is symmetrically arranged; the crossbeam mechanism includes a third motor fixing bracket, a third motor is installed on the third motor fixing bracket, and the output end of the third motor is connected to the lead screw.

8. A pipeline groove grinding machine tool as claimed in claim 7, characterized in that: A horizontal lead screw nut interface plate is arranged on the lead screw, a second lead screw nut is arranged at one end of the horizontal lead screw nut interface plate, and one end of the lead screw is arranged on a bearing seat; the bearing seat and the third motor fixing bracket are both installed on one side of the beam body, an upper guide rail is arranged on the upper part of the beam body, and a side guide rail is arranged on the side part of the beam body, the upper guide rail is clamped with the first buckle, and the side guide rail is clamped with the third buckle.

9. A method for using a pipeline groove grinding machine tool as described in any one of claims 1 to 8, characterized in that: The following steps are involved: Before placing the workpiece, the threaded disk rotates, and the four clamps are driven to move radially outward along the four-jaw chuck through the vortex thread structure at the joint between the four clamps and the threaded disk. At this time, the workpiece is placed in the four-jaw chuck to complete the placement of the workpiece; After the workpiece is placed, the threaded disk rotates in the opposite direction, and the four clamps are driven in the opposite direction to move radially inward along the four-jaw chuck through the vortex thread structure at the joint between the four clamps and the threaded disk, until the workpiece is supported so that the clamps can no longer move radially inward, and the workpiece is fixed at this time; When processing the workpiece, the chuck and the worktable move in the X direction, and the four-jaw chuck and the worktable are fixed by T-slots. When the work starts, the motor on the gantry base starts to work, the motor drives the lead screw to rotate, and the lead screw drives the worktable to move in the X-axis direction; The gantry structure moves in the Y-axis direction. At this time, the motor in the crossbeam mechanism starts to drive the lead screw to rotate, and the lead screw drives the lead screw nut to move. When the motor starts working, it can drive the lead screw through the horizontal lead screw nut interface plate to drive the transverse movement mechanism to move in the Y-axis on the guide rail, so that the transverse movement mechanism drives the lifting mechanism and the grinding mechanism to dock with the workpiece in the Y-axis; The lifting mechanism moves in the Z-axis direction, the second buckle in the transverse mechanism is connected to the guide rail of the lifting mechanism, the lifting mechanism motor starts to work, the motor drives the lead screw to rotate, and the lead screw drives the lead screw nut to translate. When the lifting mechanism motor starts to work, the lifting mechanism can move in the Z-axis direction along the guide rail of the transverse mechanism, so that the grinding mechanism can dock with the workpiece in the Z-axis direction; After the position movement is completed, the grinding mechanism is started, the motor in the grinding mechanism starts working, the spindle of the grinder is connected to the motor through a belt, the motor rotates to transmit power to the spindle through the belt, then the spindle starts to rotate and drives the grinding head to rotate, and the grinding work is completed.

10. The method of use according to claim 9, characterized in that: In the grinding mechanism, a steering gear is arranged outside the plate, and an arc guide rail is arranged on the plate. When the steering gear starts to work, the grinding mechanism is adjusted on the arc guide rail by plus or minus 15 degrees to adapt to the grinding operation of grooves at different angles. After the grinding is completed, the workpiece is unloaded, and the threaded disk is rotated. The four clamps are fitted with the four-jaw chuck through the vortex thread line structure and move radially outward to release the workpiece, thereby completing the workpiece unloading work.

Images