A device and process for treating the weld surface of a cold shield cooling pipe at the bottom of a tokamak device

Abstract

The present invention discloses a device for surface treatment of the weld of a cold shield cooling pipe at the bottom of a tokamak device and a process thereof, which relates to the technical field of pipe weld surface treatment equipment, and includes: a grinding table and a first linear module installed on the top of the grinding table, a support seat installed on the top of the first linear module, a support seat fixedly connected to the top of the support seat, a pipe placed on the top of the support seat, a fixed seat fixedly connected to one side of the support seat, and a three-jaw chuck installed on one side of the fixed seat. The present invention sets an angle adjuster so that the angle of the grinding disc can be adjusted during the movement of the moving seat, so that the grinding disc gradually increases its inclination angle during the grinding of the pipe weld position and the movement toward the outermost edge of the weld, so that the weld edge can be slightly trimmed and polished, and the amount of material removed can be controlled, thereby improving the overall practicality of the device and further improving the accuracy of grinding.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline weld surface treatment equipment, in particular to a tokamak device bottom cold shield cooling pipeline weld surface treatment device and a process thereof. Background Art

[0002] Tokamak is a device used for nuclear fusion research. It is one of the most mature and widely used magnetic confinement devices for studying controlled nuclear fusion. The cold shield cooling pipe at the bottom of the Tokamak is a key component of its thermal management system, which aims to achieve effective control of the heat load at the bottom of the Tokamak. The cold shield cooling pipe at the bottom of the Tokamak is formed by welding two pipes that are butt-jointed during the production and processing process. Therefore, there is welding slag at the weld position after the pipe is welded, which needs to be polished with a special polishing device.

[0003] In the process of grinding pipeline welds by existing grinding devices, the contact angle between the grinding tool and the weld surface is generally fixed, and the grinding disk cannot be dynamically adjusted, resulting in over-grinding at the edge of the weld, which easily destroys the smooth transition of the weld edge. At the same time, over-grinding requires additional finishing steps, reducing the overall processing efficiency. For this reason, we provide a surface treatment device and process for the weld of the cold shield cooling pipe at the bottom of a tokamak device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a device and process for treating the weld surface of a cold shield cooling pipe at the bottom of a tokamak device in order to solve the problem that the contact angle between the grinding tool and the weld surface is generally fixed and the grinding disc cannot be dynamically adjusted, resulting in excessive grinding at the weld edge.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for surface treatment of weld seams of a cold shield cooling pipe at the bottom of a tokamak device, comprising: a grinding table and a first linear module installed on the top of the grinding table, a support seat is installed on the top of the first linear module, a support seat is fixedly connected to the top of the support seat, a pipe is placed on the top of the support seat, a fixed seat is fixedly connected to one side of the support seat, a three-jaw chuck is installed on one side of the fixed seat, and the pipe is fixedly connected to the end of the three-jaw chuck; an L-shaped bracket, the L-shaped bracket is fixedly connected to the top of the grinding table and is located on one side of the support seat, the L-shaped bracket is fixedly connected to the top of the grinding table and is located on one side of the support seat, and the L-shaped bracket is fixedly connected to the end of the three-jaw chuck. A second linear module is installed on the top of the frame, and a slider is installed on the top of the second linear module. A hydraulic cylinder is fixedly connected to the inner side of the slider, and the output end of the hydraulic cylinder is connected to a connecting base. A connecting shell is arranged below the connecting base, and a grinding disc is rotatably connected to the inner side of the connecting shell; a transverse reciprocating adjustment mechanism is located between the connecting base and the connecting shell, and is used for transversely reciprocatingly adjusting the position of the connecting shell; a positioning mechanism is located between the connecting shell and the connecting base, and is used for adjusting the welding seam grinding position; an angle adjuster is located on the top of the connecting shell, and is used for tilting the grinding disc.

[0006] As a further scheme of the present invention: the lateral reciprocating adjustment mechanism includes a driving motor installed on the top of the connecting base, the output end of the driving motor is connected to a connecting shaft, one end of the connecting shaft passes through the bottom of the connecting base and is fixedly connected to a rotating disk, a first movable block is provided on the inner side of the rotating disk, a rotary push column is fixedly connected to the bottom of the first movable block, a circular frame is sleeved on the outer wall of the rotary push column, a third connecting rod is fixedly connected to the bottom of the circular frame, an arc seat is provided at the bottom of the third connecting rod, a roller is slidably connected to the inner side of the arc seat, a moving seat is fixedly connected to both sides of the roller, and the moving seat is fixedly connected to the connecting shell, and a buffering adjustment component for buffering the movement of the grinding disk is provided between the third connecting rod and the arc seat.

[0007] As a further solution of the present invention: one end of the circular frame is fixedly connected to a sliding rod, the bottom of the connecting base is fixedly connected to a hanging seat, and one end of the sliding rod passes through the outside of the hanging seat and is slidably connected to the hanging seat, and the inner side of the circular frame is provided with a circular groove with a diameter matching the rotary push column.

[0008] As a further solution of the present invention: the buffer adjustment assembly includes an auxiliary seat fixedly connected to the bottom of the third connecting rod, a T-shaped rod is slidably connected to the inner side of the auxiliary seat, and the bottom of the T-shaped rod is fixedly connected to the arc seat, and an auxiliary spring is installed between the auxiliary seat and the T-shaped rod.

[0009] As a further solution of the present invention: the positioning mechanism includes a bidirectional threaded screw rotatably connected to the inner side of the rotating disk, the outer wall of the bidirectional threaded screw is provided with a positive thread and a negative thread, the inner side of the rotating disk is symmetrically provided with a second movable block and the first movable block, and the second movable block and the first movable block are slidingly connected to the rotating disk, the second movable block and the first movable block are respectively threadedly connected to the positive thread and the outer wall of the negative thread, a second connecting rod is fixedly connected to one side of the second movable block, and one end of the second connecting rod passes through the outside of the rotating disk and is fixedly connected to a positioning rod, and a ball is embedded in the bottom of the positioning rod.

[0010] As a further solution of the present invention: the angle adjuster includes an L-shaped seat fixedly connected to the top of the arc-shaped seat, the inner side of the L-shaped seat is rotatably connected to a rotating shaft, both ends of the rotating shaft are fixedly connected to spur gears, and the top of the movable seat is fixedly connected to an arc-shaped rack meshing with the spur gear.

[0011] As a further solution of the present invention: the angle adjuster also includes a spur rack meshed on one side of the spur gear, the top of the spur rack is fixedly connected to a spherical rod, the bottom of the connecting base is fixedly connected to a first connecting rod, one end of the first connecting rod is fixedly connected to an inclined rod, and the spherical rod is against the inclined rod.

[0012] As a further solution of the present invention: an I-shaped rod is fixedly connected to the inner side of the spur rack, and one end of the I-shaped rod passes through the outside of the L-shaped seat and is slidably connected to the L-shaped seat, and a connecting spring is installed between the L-shaped seat and the I-shaped rod.

[0013] The present invention also discloses a process for treating the weld seam surface of a cold shield cooling pipe at the bottom of a Tokamak device, which uses the device for treating the weld seam surface of a cold shield cooling pipe at the bottom of a Tokamak device, and comprises the following steps:

[0014] S1. After the pipe is placed on the top of the support and clamped at the end of the pipe by the three-jaw chuck, a first servo motor for driving the three-jaw chuck to rotate is installed on one side of the fixed seat, and a second servo motor for driving the grinding disc to rotate is installed on the outer wall of the connecting shell. The three-jaw chuck is driven by the first servo motor to drive the pipe to rotate slowly in a circle, so as to cooperate with the grinding disc to grind the weld position of the pipe;

[0015] S2. After the pipe is clamped, the first linear module drives the support seat to move laterally to adjust the position of the pipe, and the second linear module drives the slider to adjust the position of the grinding disc longitudinally, so that the grinding disc can move to the middle position of the pipe weld, and then the bidirectional threaded screw is rotated, and the bidirectional threaded screw drives the first movable block and the second movable block to move towards or be moved to each other, so as to adjust the distance between the grinding disc and the end of the positioning rod, and the distance between the first movable block and the second movable block is equal to the distance between the grinding disc and the end of the positioning rod, so that the distance of the grinding disc in the transverse reciprocating movement is the same as the width of the weld cross section, so as to improve the grinding accuracy;

[0016] S3. When the weld position of the pipeline needs to be polished, the drive motor can be started, and the output end of the drive motor drives the connecting shaft to drive the first movable block to rotate in a circle, so that the rotary push column drives the circular frame to drive the arc seat to move back and forth horizontally to polish the weld position, thereby cooperating with the circular rotation of the pipeline to improve the subsequent polishing efficiency;

[0017] S4. When the arc seat is moving laterally, the grinding disc is subjected to resistance when it contacts the protruding part of the weld to be polished, so that the auxiliary seat can slide relative to the arc seat, so that the grinding disc can stay at the designated position for a period of time to avoid hard contact, so that the device can operate stably;

[0018] S5. When the arc seat is moving back and forth laterally, the circular frame moves from the leftmost end to the rightmost end under the push of the rotary push column, and when the spherical rod moves from the lowest point of the inclined rod to a higher position, the pressure on the connecting spring gradually decreases, thereby pushing the I-shaped rod to drive the spur rack to move upward, thereby driving the spur gear to drive the rotating shaft to rotate, and then driving the arc rack to move toward the leftmost end of the arc seat through the moving seat. Since the grinding disc is against the top of the pipe during grinding, the moving seat can adjust the angle of the grinding disc during its movement, so that the grinding disc can adjust the position of the pipe weld. During the grinding process, the grinding disc gradually increases in the process of moving toward the outermost edge of the weld. Since the larger the cross-sectional area of ​​the weld, the more material protruding from the weld, by increasing the inclination angle of the grinding disc, the contact angle between the inclination angle of the grinding disc and the weld surface can be better adjusted, thereby more efficiently removing the excess part of the weld. For welds with larger cross-sectional areas, when the inclination angle is larger, the transition of the weld edge area will be smoother, reducing steps or edges. At the same time, as the inclination angle increases, the contact area gradually decreases, and the weld edge can be slightly trimmed and polished to control the amount of material removed, thereby improving the overall practicality of the device and further improving the accuracy of grinding.

[0019] When the grinding disc can be adjusted according to the size of the weld cross section, the inclination angle of the grinding disc is larger when grinding a weld with a larger cross-sectional area, and vice versa, the inclination angle of the grinding disc is smaller when grinding a weld with a larger cross-sectional area.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting an angle adjuster, the angle of the grinding disc can be adjusted during the movement of the moving seat, so that when the grinding disc is grinding the pipe weld position, the grinding disc's inclination angle gradually increases as it moves toward the outermost edge of the weld. Since the larger the weld cross-sectional area, the more material protruding from the weld, by increasing the inclination angle of the grinding disc, the contact angle between the grinding disc's inclination angle and the weld surface can be better adjusted, thereby more efficiently removing the excess part of the weld. For welds with larger cross-sectional areas, when the inclination angle is larger, the transition of the weld edge area will be smoother, reducing steps or edges. At the same time, as the inclination angle increases, the contact area gradually decreases, and the weld edge can be slightly trimmed and polished to control the amount of material removed, thereby improving the overall practicality of the device and the accuracy of grinding.

[0022] 2. By setting a transverse reciprocating adjustment mechanism, when it is necessary to grind the weld position of the pipeline, the drive motor can be started, and the output end of the drive motor drives the connecting shaft to drive the first movable block to rotate in a circle, so that the circular frame is driven by the rotary push column to drive the arc seat to move horizontally and reciprocatingly to grind the weld position, thereby cooperating with the pipeline to rotate in a circle to improve the subsequent grinding efficiency;

[0023] 3. By setting a buffer adjustment component, when the arc seat moves horizontally, the grinding disc encounters resistance when it contacts the protruding part of the weld that needs to be polished, so that the auxiliary seat can slide relative to the arc seat, so that the grinding disc can stay at the specified position for a period of time, avoiding hard contact, so that the device can operate stably;

[0024] 4. By setting a positioning mechanism, after the pipe is clamped, the first linear module drives the support seat to move horizontally to adjust the position of the pipe, and the second linear module drives the slider to adjust the position of the grinding disc longitudinally, so that the grinding disc can be moved to the middle position of the pipe weld, and then the bidirectional threaded screw is rotated. The bidirectional threaded screw drives the first movable block and the second movable block to move towards or be moved relative to each other, thereby adjusting the distance between the grinding disc and the end of the positioning rod. The distance between the first movable block and the second movable block is equal to the distance between the grinding disc and the end of the positioning rod, so that the distance of the grinding disc in the lateral reciprocating movement is the same as the width of the weld section, thereby improving the grinding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the inner structure of the connection base of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 is a cross-sectional view of a rotating disk of the present invention;

[0029] Figure 5 It is a schematic diagram of the positioning structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the top structure of the arc seat of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0032] Figure 8 It is a schematic diagram of the partial structure of the angle adjuster of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the buffer adjustment component of the present invention.

[0034] In the figure: 1, grinding table; 2, first linear module; 3, support seat; 4, L-shaped bracket; 5, second linear module; 6, slider; 7, hydraulic cylinder; 8, fixed seat; 9, three-jaw chuck; 10, connecting base; 11, pipeline; 12, support; 13, driving motor; 14, connecting shaft; 15, suspension seat; 16, sliding rod; 17, first connecting rod; 18, connecting shell; 19, moving seat; 20, second connecting rod; 21, positioning rod; 22, rotating disk; 2 3. Bidirectional threaded screw; 24. First movable block; 25. Second movable block; 26. Reciprocating frame; 27. Rotary push column; 28. Third connecting rod; 29. ​​Auxiliary seat; 30. Arc seat; 31. Oblique rod; 32. L-shaped seat; 33. T-shaped rod; 34. Grinding disc; 35. Ball; 36. Arc rack; 37. Straight rack; 38. Straight gear; 39. Roller; 40. Rotating shaft; 41. Spherical rod; 42. Auxiliary spring; 43. I-shaped rod; 44. Connecting spring. DETAILED DESCRIPTION

[0035] 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 described embodiments 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.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0037] Example 1

[0038] See also Figures 1 to 9 The present embodiment provides a surface treatment device for the weld seam of the cold shield cooling pipe at the bottom of a tokamak device, comprising: a grinding table 1 and a first linear module 2 installed on the top of the grinding table 1, a support seat 3 is installed on the top of the first linear module 2, a support seat 3 is fixedly connected to the top of the support seat 3, a pipe 11 is placed on the top of the support seat 12, a fixed seat 8 is fixedly connected to one side of the support seat 3, a three-jaw chuck 9 is installed on one side of the fixed seat 8, and the pipe 11 is fixedly connected to the end of the three-jaw chuck 9; an L-shaped bracket 4, the L-shaped bracket 4 is fixedly connected to the top of the grinding table 1 and is located on one side of the support seat 3, a second linear module 5 is installed on the top of the L-shaped bracket 4, a slider 6 is installed on the top of the second linear module 5, a hydraulic cylinder 7 is fixedly connected to the inner side of the slider 6, and the output end of the hydraulic cylinder 7 is connected to a connecting base 10, a connecting shell 18 is arranged below the connecting base 10, and a grinding disc 34 is rotatably connected to the inner side of the connecting shell 18; a lateral reciprocating adjustment mechanism is located between the connecting base 10 and the connecting shell 18, and is used to adjust the connecting shell 18 The position can be adjusted laterally reciprocatingly, and the lateral reciprocating adjustment mechanism includes a driving motor 13 installed on the top of the connecting base 10, the output end of the driving motor 13 is connected to a connecting shaft 14, one end of the connecting shaft 14 passes through the bottom of the connecting base 10 and is fixedly connected to a rotating disk 22, a first movable block 24 is arranged on the inner side of the rotating disk 22, a rotary push column 27 is fixedly connected to the bottom of the first movable block 24, a circular frame 26 is sleeved on the outer wall of the rotary push column 27, and a third connecting rod 28 is fixedly connected to the bottom of the circular frame 26, An arc seat 30 is provided at the bottom of the third connecting rod 28, a roller 39 is slidably connected to the inner side of the arc seat 30, a movable seat 19 is fixedly connected to both sides of the roller 39, and the movable seat 19 is fixedly connected to the connecting shell 18, one end of the circular frame 26 is fixedly connected to the slide rod 16, the bottom of the connecting base 10 is fixedly connected to the suspension seat 15, and one end of the slide rod 16 penetrates to the outside of the suspension seat 15 and is slidably connected to the suspension seat 15, and a circular groove with a diameter matching the rotary push column 27 is opened on the inner side of the circular frame 26;

[0039] The three-jaw chuck 9 consists of a chuck body, movable jaws and a jaw driving mechanism. The three jaw guide parts on the three-jaw chuck 9 have threads on the bottom that mesh with the flat threads on the back of the disc bevel gear. When the small bevel gear is rotated through the square hole with a wrench, the disc gear rotates, and the flat threads on the back simultaneously drive the three jaws to approach or withdraw from the center to clamp workpieces of different diameters. Since the three-jaw chuck 9 is a prior art, it is not described too much in this scheme. There are several names for linear modules, such as linear modules, rectangular coordinate robots, linear slides, etc., which are the successors of linear guides, linear motion modules, and ball screw linear transmission machines. The automatic upgrade unit of the structure is constructed. Since the linear module is a prior art, the first linear module and the second linear module are not described in detail in this solution. When the pipe 11 is placed on the top of the support 12 and clamped at the end of the pipe 11 by the three-jaw chuck 9, a first servo motor for driving the three-jaw chuck 9 to rotate is installed on one side of the fixed seat 8, and a second servo motor for driving the grinding disc 34 to rotate is installed on the outer wall of the connecting shell 18. The three-jaw chuck 9 is driven by the first servo motor to drive the pipe 11 to rotate slowly in a circle, so as to cooperate with the grinding disc 34 to grind the weld position of the pipe 11;

[0040] When it is necessary to grind the weld position of the pipe 11, the drive motor 13 can be started, and the output end of the drive motor 13 drives the connecting shaft 14 to drive the first movable block 24 to rotate in a circle, thereby pushing the circular frame 26 through the rotary push column 27 to drive the arc seat 30 to move back and forth horizontally to grind the weld position, thereby cooperating with the circular rotation of the pipe 11 to improve the subsequent grinding efficiency.

[0041] Example 2

[0042] A buffer adjustment assembly for buffering the movement of the grinding disc 34 is provided between the third connecting rod 28 and the arc seat 30. The buffer adjustment assembly includes an auxiliary seat 29 fixedly connected to the bottom of the third connecting rod 28. A T-shaped rod 33 is slidably connected to the inner side of the auxiliary seat 29. The bottom of the T-shaped rod 33 is fixedly connected to the arc seat 30. An auxiliary spring 42 is installed between the auxiliary seat 29 and the T-shaped rod 33.

[0043] When the arc seat 30 moves laterally, the grinding disc 34 encounters resistance when it contacts the protruding part of the weld that needs to be polished, so that the auxiliary seat 29 can slide relative to the arc seat 30, so that the grinding disc 34 can stay at the specified position for a period of time, avoiding hard contact, so that the device can operate stably.

[0044] Example 3

[0045] The positioning mechanism is located between the connecting shell 18 and the connecting base 10, and is used to adjust the welding seam grinding position. The positioning mechanism includes a bidirectional threaded screw 23 rotatably connected to the inner side of the rotating disk 22. The outer wall of the bidirectional threaded screw 23 is provided with positive threads and negative threads. The inner side of the rotating disk 22 is symmetrically provided with a second movable block 25 and a first movable block 24, and the second movable block 25 and the first movable block 24 are slidably connected to the rotating disk 22. The second movable block 25 and the first movable block 24 are respectively threadedly connected to the positive thread and the negative thread outer wall. A second connecting rod 20 is fixedly connected to one side of the second movable block 25, and one end of the second connecting rod 20 passes through the outside of the rotating disk 22 and is fixedly connected to the positioning rod 21, and a ball 35 is embedded in the bottom of the positioning rod 21;

[0046] After the pipe 11 is clamped, the first linear module 2 drives the support seat 3 to move horizontally to adjust the position of the pipe 11, and the second linear module 5 drives the slider 6 to adjust the position of the grinding disc 34 longitudinally, so that the grinding disc 34 can be moved to the middle position of the weld of the pipe 11, and then the bidirectional threaded screw 23 is rotated. The bidirectional threaded screw 23 drives the first movable block 24 and the second movable block 25 to move towards or be moved relative to each other, thereby adjusting the distance between the grinding disc 34 and the end of the positioning rod 21. The distance between the first movable block 24 and the second movable block 25 is equal to the distance between the grinding disc 34 and the end of the positioning rod 21, so that the distance of the grinding disc 34 in the lateral reciprocating movement is the same as the width of the weld section, thereby improving the grinding accuracy.

[0047] Example 4

[0048] The angle adjuster is located at the top of the connecting shell 18 and is used to adjust the inclination of the grinding disc 34. The angle adjuster includes an L-shaped seat 32 fixedly connected to the top of the arc seat 30. The inner side of the L-shaped seat 32 is rotatably connected with a rotating shaft 40. Both ends of the rotating shaft 40 are fixedly connected with a spur gear 38. The top of the movable seat 19 is fixedly connected with an arc-shaped rack 36 meshing with the spur gear 38. The angle adjuster also includes a spur rack 37 meshing with one side of the spur gear 38. The top of the spur rack 37 is fixedly connected with a spherical rod 41. The bottom of the connecting base 10 is fixedly connected with a first connecting rod 17. One end of the first connecting rod 17 is fixedly connected with an inclined rod 31, and the spherical rod 41 is against the inclined rod 31. The inner side of the spur rack 37 is fixedly connected with an I-shaped rod 43, and one end of the I-shaped rod 43 passes through the outside of the L-shaped seat 32 and is slidably connected to the L-shaped seat 32. A connecting spring 44 is installed between the L-shaped seat 32 and the I-shaped rod 43.

[0049] During the lateral reciprocating movement of the arc seat 30, the circular frame 26 moves from the leftmost end to the rightmost end under the push of the rotary push column 27, and during the movement of the spherical rod 41 from the lowest point of the inclined rod 31 to the upper position, the pressure on the connecting spring 44 gradually decreases, thereby pushing the I-shaped rod 43 to drive the spur rack 37 to move upward, thereby driving the spur gear 38 to drive the rotating shaft 40 to rotate, and then driving the arc rack 36 to move to the leftmost end of the arc seat 30 through the moving seat 19. Since the grinding disc 34 is against the top of the pipe 11 during grinding, the moving seat 19 can adjust the angle of the grinding disc 34 during movement, so that the grinding disc 34 can grind the weld position of the pipe 11. During the process, when the grinding disc 34 moves toward the edge of the weld, the inclination angle of the grinding disc 34 gradually increases. Since the larger the cross-sectional area of ​​the weld, the more material protruding from the weld, by increasing the inclination angle of the grinding disc 34, the contact angle between the inclination angle of the grinding disc 34 and the weld surface can be better adjusted, thereby more efficiently removing the excess part of the weld. For welds with larger cross-sectional areas, when the inclination angle is larger, the transition of the weld edge area will be smoother, reducing steps or edges. At the same time, as the inclination angle increases, the contact area gradually decreases, and the weld edge can be slightly trimmed and polished to control the amount of material removed, thereby improving the overall practicality of the device and further improving the accuracy of grinding.

[0050] When the grinding disc 34 can be adjusted according to the size of the weld cross section, the grinding disc 34 has a larger inclination angle when grinding a weld with a larger cross-sectional area, and vice versa, the grinding disc 34 has a smaller inclination angle when grinding a weld with a larger cross-sectional area.

[0051] In combination with the above-mentioned device for treating the weld seam surface of the cold shield cooling pipe at the bottom of a Tokamak device, a process for treating the weld seam surface of the cold shield cooling pipe at the bottom of a Tokamak device is provided below, which specifically includes the following steps:

[0052] S1. After the pipe 11 is placed on the top of the support 12 and clamped at the end of the pipe 11 by the three-jaw chuck 9, a first servo motor for driving the three-jaw chuck 9 to rotate is installed on one side of the fixed seat 8, and a second servo motor for driving the grinding disc 34 to rotate is installed on the outer wall of the connecting shell 18. The three-jaw chuck 9 is driven by the first servo motor to drive the pipe 11 to rotate slowly in a circle, so as to cooperate with the grinding disc 34 to grind the weld position of the pipe 11;

[0053] S2. After the pipe 11 is clamped, the first linear module 2 drives the support seat 3 to move horizontally to adjust the position of the pipe 11, and the second linear module 5 drives the slider 6 to adjust the position of the grinding disc 34 longitudinally, so that the grinding disc 34 can move to the middle position of the weld of the pipe 11, and then the bidirectional threaded screw 23 is rotated, and the bidirectional threaded screw 23 drives the first movable block 24 and the second movable block 25 to move toward or be moved to each other, so as to adjust the distance between the grinding disc 34 and the end of the positioning rod 21. The distance between the first movable block 24 and the second movable block 25 is equal to the distance between the grinding disc 34 and the end of the positioning rod 21, so that the distance of the grinding disc 34 in the horizontal reciprocating movement is the same as the width of the weld cross section, so as to improve the grinding accuracy;

[0054] S3. When the weld position of the pipe 11 needs to be polished, the drive motor 13 can be started, and the output end of the drive motor 13 drives the connecting shaft 14 to drive the first movable block 24 to rotate in a circle, so that the circular frame 26 is pushed by the rotary push column 27 to drive the arc seat 30 to move back and forth horizontally to polish the weld position, thereby cooperating with the circular rotation of the pipe 11 to improve the subsequent polishing efficiency;

[0055] S4. When the arc seat 30 moves laterally, the grinding disc 34 encounters resistance when it contacts the protruding part of the weld that needs to be polished, so that the auxiliary seat 29 can slide relative to the arc seat 30, so that the grinding disc 34 can stay at the designated position for a period of time to avoid hard contact, so that the device can operate stably;

[0056] S5. When the arc seat 30 is in the process of lateral reciprocating movement, the circular frame 26 moves from the leftmost end to the rightmost end under the push of the rotary push column 27. When the spherical rod 41 moves from the lowest point of the inclined rod 31 to the upper position, the pressure on the connecting spring 44 gradually decreases, thereby pushing the I-shaped rod 43 to drive the spur rack 37 to move upward, thereby driving the spur gear 38 to drive the rotating shaft 40 to rotate, and then driving the arc rack 36 to move to the leftmost end of the arc seat 30 through the moving seat 19. Since the grinding disc 34 is against the top of the pipe 11 during grinding, the moving seat 19 can adjust the angle of the grinding disc 34 during movement, so that the grinding disc 34 can grind the weld position of the pipe 11. During the grinding process, the inclination angle of the grinding disc 34 gradually increases as it moves toward the edge of the weld. Since the larger the cross-sectional area of ​​the weld, the more material protrudes from the weld. By increasing the inclination angle of the grinding disc 34, the contact angle between the inclination angle of the grinding disc 34 and the weld surface can be better adjusted, thereby more efficiently removing the excess portion of the weld. For welds with larger cross-sectional areas, when the inclination angle is larger, the transition of the weld edge area will be smoother, reducing steps or edges. At the same time, as the inclination angle increases, the contact area gradually decreases, and the weld edge can be slightly trimmed and polished to control the amount of material removed, thereby improving the overall practicality of the device and further improving the accuracy of grinding.

[0057] When the grinding disc 34 can be adjusted according to the size of the weld cross section, the grinding disc 34 has a larger inclination angle when grinding a weld with a larger cross-sectional area, and vice versa, the grinding disc 34 has a smaller inclination angle when grinding a weld with a larger cross-sectional area.

[0058] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for treating the weld surface of a cold shield cooling pipe at the bottom of a Tokamak device, characterized in that: include: A grinding table (1) and a first linear module (2) installed on the top of the grinding table (1), a support seat (3) is installed on the top of the first linear module (2), a support seat (12) is fixedly connected to the top of the support seat (3), a pipe (11) is placed on the top of the support seat (12), a fixed seat (8) is fixedly connected to one side of the support seat (3), a three-jaw chuck (9) is installed on one side of the fixed seat (8), and the pipe (11) is fixedly connected to the end of the three-jaw chuck (9); An L-shaped bracket (4), the L-shaped bracket (4) is fixedly connected to the top of the grinding table (1) and is located on one side of the support seat (3), a second linear module (5) is installed on the top of the L-shaped bracket (4), a slider (6) is installed on the top of the second linear module (5), a hydraulic cylinder (7) is fixedly connected to the inner side of the slider (6), an output end of the hydraulic cylinder (7) is connected to a connecting base (10), a connecting shell (18) is arranged below the connecting base (10), and a grinding disc (34) is rotatably connected to the inner side of the connecting shell (18); A transverse reciprocating adjustment mechanism, located between the connecting base (10) and the connecting shell (18), and used for performing transverse reciprocating adjustment on the position of the connecting shell (18); A positioning mechanism, located between the connection shell (18) and the connection base (10), and used for adjusting the welding seam grinding position; An angle adjuster, located on the top of the connecting shell (18), used for adjusting the inclination of the grinding disc (34); The lateral reciprocating adjustment mechanism comprises a driving motor (13) mounted on the top of the connecting base (10); the output end of the driving motor (13) is connected to a connecting shaft (14); one end of the connecting shaft (14) passes through the bottom of the connecting base (10) and is fixedly connected to a rotating disk (22); a first movable block (24) is arranged on the inner side of the rotating disk (22); a rotary push column (27) is fixedly connected to the bottom of the first movable block (24); and a circular frame (26) is sleeved on the outer wall of the rotary push column (27). The bottom of the circular frame (26) is fixedly connected to a third connecting rod (28), the bottom of the third connecting rod (28) is provided with an arc seat (30), the inner side of the arc seat (30) is slidably connected to a roller (39), both sides of the roller (39) are fixedly connected to a movable seat (19), and the movable seat (19) is fixedly connected to the connecting shell (18), and a buffer adjustment component for buffering the movement of the grinding disc (34) is provided between the third connecting rod (28) and the arc seat (30); The angle adjuster comprises an L-shaped seat (32) fixedly connected to the top of the arc-shaped seat (30); a rotating shaft (40) is rotatably connected to the inner side of the L-shaped seat (32); spur gears (38) are fixedly connected to both ends of the rotating shaft (40); and an arc-shaped rack (36) meshing with the spur gear (38) is fixedly connected to the top of the movable seat (19); The angle adjuster also includes a spur rack (37) meshed with one side of the spur gear (38), the top of the spur rack (37) is fixedly connected to a spherical rod (41), the bottom of the connecting base (10) is fixedly connected to a first connecting rod (17), one end of the first connecting rod (17) is fixedly connected to an inclined rod (31), and the spherical rod (41) is against the inclined rod (31); An I-shaped rod (43) is fixedly connected to the inner side of the spur rack (37), and one end of the I-shaped rod (43) passes through the outside of the L-shaped seat (32) and is slidably connected to the L-shaped seat (32), and a connecting spring (44) is installed between the L-shaped seat (32) and the I-shaped rod (43).

2. The device for treating the weld surface of the cold shield cooling pipe at the bottom of a Tokamak device according to claim 1, characterized in that: One end of the circular frame (26) is fixedly connected to a slide rod (16), the bottom of the connecting base (10) is fixedly connected to a suspension seat (15), and one end of the slide rod (16) passes through the outside of the suspension seat (15) and is slidably connected to the suspension seat (15), and a circular groove with a diameter matching that of the rotary push column (27) is provided on the inner side of the circular frame (26).

3. The device for treating the weld surface of the cold shield cooling pipe at the bottom of a Tokamak device according to claim 2, characterized in that: The buffer adjustment assembly comprises an auxiliary seat (29) fixedly connected to the bottom of the third connecting rod (28); a T-shaped rod (33) is slidably connected to the inner side of the auxiliary seat (29); the bottom of the T-shaped rod (33) is fixedly connected to the arc seat (30); and an auxiliary spring (42) is installed between the auxiliary seat (29) and the T-shaped rod (33).

4. The device for treating the weld surface of the cooling pipe of the bottom cold shield of a Tokamak device according to claim 3 is characterized in that: The positioning mechanism comprises a bidirectional threaded screw (23) rotatably connected to the inner side of the rotating disk (22); the outer wall of the bidirectional threaded screw (23) is provided with a positive thread and a negative thread; the inner side of the rotating disk (22) is symmetrically provided with a second movable block (25) and the first movable block (24), and the second movable block (25) and the first movable block (24) are slidably connected to the rotating disk (22); the second movable block (25) and the first movable block (24) are respectively threadedly connected to the positive thread and the negative thread outer wall; one side of the second movable block (25) is fixedly connected to a second connecting rod (20); one end of the second connecting rod (20) passes through the outside of the rotating disk (22) and is fixedly connected to a positioning rod (21); a ball (35) is embedded in the bottom of the positioning rod (21).

5. A surface treatment process for the weld of the cold shield cooling pipe at the bottom of a Tokamak device, characterized in that: The device for treating the weld surface of the cold shield cooling pipe at the bottom of a Tokamak device according to claim 4 comprises the following steps: S1. When the pipe (11) is placed on the top of the support (12) and clamped at the end of the pipe (11) by the three-jaw chuck (9), a first servo motor for driving the three-jaw chuck (9) to rotate is installed on one side of the fixed seat (8), and a second servo motor for driving the grinding disc (34) to rotate is installed on the outer wall of the connecting shell (18). The three-jaw chuck (9) is driven by the first servo motor to drive the pipe (11) to rotate slowly in a circular motion, so as to cooperate with the grinding disc (34) to grind the weld position of the pipe (11); S2. After the pipe (11) is clamped, the first linear module (2) drives the support seat (3) to move horizontally to adjust the position of the pipe (11), and the second linear module (5) drives the slider (6) to adjust the position of the grinding disc (34) longitudinally, so that the grinding disc (34) can be moved to the middle position of the weld of the pipe (11), and then the bidirectional threaded screw (23) is rotated, and the bidirectional threaded screw (23) drives the first movable block (24) and the second movable block (25) to move towards or be moved relative to each other, thereby adjusting the distance between the grinding disc (34) and the end of the positioning rod (21). The distance between the first movable block (24) and the second movable block (25) is equal to the distance between the grinding disc (34) and the end of the positioning rod (21), so that the distance of the grinding disc (34) in the transverse reciprocating movement is the same as the cross-sectional width of the weld, thereby improving the grinding accuracy; S3. When it is necessary to grind the weld position of the pipeline (11), the drive motor (13) can be started, and the output end of the drive motor (13) drives the connecting shaft (14) to drive the first movable block (24) to rotate in a circle, thereby pushing the circular frame (26) through the rotary push column (27) to drive the arc seat (30) to move back and forth horizontally to grind the weld position, thereby cooperating with the pipeline (11) to rotate in a circle to improve the subsequent grinding efficiency; S4. When the arc seat (30) moves laterally, the grinding disc (34) encounters resistance when it contacts the protruding part of the weld that needs to be polished during the movement, so that the auxiliary seat (29) can slide relative to the arc seat (30), so that the grinding disc (34) can stay at the specified position for a period of time to avoid hard contact, so that the device can operate stably; S5. When the arc seat (30) is in a process of lateral reciprocating movement, the circular frame (26) is pushed by the rotary push column (27) to move from the leftmost end to the rightmost end. When the spherical rod (41) moves from the lowest point of the inclined rod (31) to a higher position, the pressure on the connecting spring (44) is gradually reduced, thereby pushing the I-shaped rod (43) to drive the spur rack (37) to move upward, thereby driving the spur gear (38) to drive the rotating shaft (40) to rotate, and then driving the arc rack (36) to move to the leftmost end of the arc seat (30) through the moving seat (19). Since the grinding disc (34) is against the top of the pipe (11) during grinding, the moving seat (19) can angularly grind the grinding disc (34) during movement. The degree of adjustment is achieved, so that when the grinding disc (34) is grinding the weld position of the pipeline (11), the inclination angle of the grinding disc (34) gradually increases as it moves toward the outermost edge of the weld. Since the larger the cross-sectional area of ​​the weld, the more material protrudes from the weld. By increasing the inclination angle of the grinding disc (34), the contact angle between the inclination angle of the grinding disc (34) and the weld surface can be better adjusted, thereby more efficiently removing the excess part of the weld. For welds with larger cross-sectional areas, when the inclination angle is larger, the transition of the weld edge area will be smoother, reducing steps or edges. At the same time, as the inclination angle increases, the contact area gradually decreases, and the weld edge can be slightly trimmed and polished to control the amount of material removed, thereby improving the overall practicality of the device and further improving the accuracy of grinding. When the grinding disc (34) can be adjusted according to the size of the weld cross section, the grinding disc (34) has a larger inclination angle when grinding a weld with a larger cross section, and vice versa, the grinding disc (34) has a smaller inclination angle when grinding a weld with a larger cross section.

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