Multi-degree-of-freedom pipe fitting repairing device

Abstract

The invention relates to the field of electroplating, and particularly discloses a multi-degree-of-freedom pipe fitting repairing device which comprises a storage table, a vibration mechanism, an anode mechanism, a brushing assembly, a plating solution spraying mechanism and a three-dimensional moving mechanism, the storage table is used for fixing a to-be-repaired pipe fitting, and the vibration mechanism is used for driving the storage table to vibrate in a reciprocating mode; the anode mechanism comprises a mounting frame and a conductive roller rotationally arranged on the mounting frame, the arc surface peripheral side of the conductive roller abuts against the inner wall of a to-be-repaired pipe fitting, the electricity brushing assembly is used for connecting the conductive roller with a power supply anode, and the plating solution spraying mechanism is used for spraying a plating solution to the inner wall of the to-be-repaired pipe fitting; and the three-dimensional moving mechanism is used for driving the anode mechanism to freely move in a three-dimensional space. The roller type anode is matched with the vibration mechanism, so that the contact pressure is more uniform, the flowing and uniform distribution of a plating solution are promoted, the plating efficiency can be improved, the fluctuation of the thickness of a plating layer can be reduced, the defects in the plating process can be remarkably reduced, and the brush plating quality can be improved.

Description

Technical Field

[0001] The present application relates to the field of electroplating, and in particular to a multi-degree-of-freedom pipe repair device. Background Art

[0002] With the continuous advancement of industrial automation, people have put forward higher requirements for the accuracy and efficiency of brush plating equipment. Traditional brush plating anodes usually use rectangular blocks, which are kept in contact with the surface of the workpiece by manual or mechanical means, and are plated by moving back and forth. Its working mode relies on the sliding reciprocating motion of the anode to ensure that the electroplating solution forms a uniform coating on the surface of the workpiece, but this design has some disadvantages: First, uneven friction can easily lead to uneven coating thickness. At the same time, the diffusion process of the plating solution on the surface of the workpiece is limited and the fluidity is insufficient, which makes the plating solution easy to be unevenly coated, affecting the quality of the coating; second, manual operation is inefficient and the quality is easily affected by human factors; third, due to the friction and pause between the anode and the workpiece, the local current density may be too large on the surface of the workpiece, resulting in defects such as scorching and pinholes in the coating. Especially when brush plating is used to repair the inner wall of the pipe fitting locally, due to the narrow internal space of the pipe fitting, the operation of the traditional brush plating method is difficult, the efficiency is low, and the brush plating quality is difficult to guarantee. Summary of the invention

[0003] In order to improve the quality and efficiency of local repair of pipe fittings, the present application provides a multi-degree-of-freedom pipe fitting repair device.

[0004] The multi-degree-of-freedom pipe repair device provided in this application adopts the following technical solution: A multi-degree-of-freedom pipe repair device, comprising: Operation table; A storage table is arranged on the operating table, the storage table comprises a fixed table and a vibration table slidably arranged on the fixed table, and the pipe to be repaired is connected to the cathode of the power supply and fixed on the vibration table; A vibration mechanism, used for driving the vibration table to vibrate reciprocatingly in a horizontal plane; The anode mechanism includes a mounting frame and a conductive roller rotatably mounted on the mounting frame, wherein the arc surface of the conductive roller abuts against the inner wall of the pipe to be repaired; and also includes a brush assembly for connecting the conductive roller to the anode of the power supply; A plating liquid spraying mechanism, used for spraying the plating liquid onto the inner wall of the pipe to be repaired; The three-dimensional moving mechanism is used to drive the anode mechanism to move freely in three-dimensional space.

[0005] Furthermore, the anode mechanism also includes a first driving member for driving the conductive roller to rotate; the conductive roller is coaxially fixed with an anode shaft, the brush electric assembly includes an electric slip ring fixedly arranged on the mounting frame, the anode shaft is rotatably arranged in the electric slip ring, the anode shaft and the electric slip ring are both conductive and in contact with each other, and the electric slip ring is connected to the power supply anode through a wire.

[0006] Furthermore, the plating liquid spraying mechanism includes a plating liquid box for containing plating liquid, and also includes a plating liquid circulation pump arranged in the plating liquid box and a nozzle installed at the liquid outlet end of the plating liquid circulation pump, and the nozzle faces the inner wall of the pipe to be repaired.

[0007] The conductive roller is connected to the anode of the power supply through the electric slip ring, the pipe to be repaired is connected to the cathode of the power supply, and the conductive roller contacts the inner wall of the pipe to be repaired to connect the circuit. During brush plating, the plating solution in the plating box is sprayed to the inner wall of the pipe to be repaired through the plating solution circulation pump and the nozzle, and the power is turned on at the same time, so that the plating layer is deposited on the inner wall of the pipe.

[0008] The roller anode contacts the inner wall of the pipe by rolling, which helps to maintain uniform pressure, reduce fluctuations in coating thickness, and ensure coating uniformity; at the same time, the rolling contact reduces current density fluctuations, thereby reducing the generation of defects and is beneficial to improving brush plating quality.

[0009] The vibration table promotes the flow and renewal of the plating solution on the inner wall of the pipe through reciprocating vibration, thereby effectively improving the diffusion efficiency of the plating solution and ensuring uniform current distribution between the anode and the workpiece; vibration also helps to reduce defects caused by uneven deposition during the plating process, improve the density and uniformity of the coating, and at the same time enhance the bonding strength and surface quality of the coating.

[0010] The position of the anode mechanism in three-dimensional space is adjusted by a three-dimensional moving mechanism so that the position of the anode mechanism is adapted to the size, shape and repair position of the workpiece to be brush plated, thereby improving the flexibility of brush plating; by adjusting the position of the anode mechanism in the vertical direction, the pressure between the conductive roller and the workpiece to be brush plated can be adjusted to meet the specific needs of the brush plating operation.

[0011] Furthermore, two vibration mechanisms are provided, and the two vibration mechanisms are respectively used to drive the vibration table to reciprocate and vibrate along two mutually orthogonal directions in a horizontal plane.

[0012] Furthermore, the vibration mechanism includes a base and a vibration seat, the base is provided with a vibration component for driving the vibration seat to vibrate reciprocatingly; the vibration seat is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a slider, and the side of the vibration table is provided with a guide rail for the slider to slide; the reciprocating sliding trajectory of the vibration seat is orthogonal to the sliding trajectory of the slider.

[0013] Furthermore, the vibration component includes a driving shaft rotatably arranged on the base and a fixed eccentric block fixed to the driving shaft, the driving shaft passes through the vibration seat and is rotatably connected to the vibration seat; a guide component is arranged on the base for guiding the directional vibration of the vibration seat; the driving shaft is also connected to an adjusting eccentric block, and the angle between the adjusting eccentric block and the fixed eccentric block can be adjusted.

[0014] Furthermore, the guide assembly includes a guide rod fixedly connected to the base, the guide rod passes through the vibration seat along the vibration direction of the vibration seat, and a protrusion is fixedly connected to the end of the guide rod; elastic parts are provided between the vibration seat and the base, and between the vibration seat and the protrusion.

[0015] The two vibration mechanisms are used to drive the vibration table to vibrate back and forth in the X direction or the Y direction in the horizontal plane. When the drive shaft rotates, the fixed eccentric block rotates to generate an unbalanced centrifugal force which is transmitted to the vibration seat along the drive shaft. Under the guidance of the guide assembly, the vibration seat vibrates in a direction. Specifically, the vibration seat slides along the guide rod, and at the same time, the elastic parts on both sides of the vibration seat are alternately compressed to achieve reciprocating vibration of the vibration seat. The thrust of the vibration seat is transmitted to the vibration table along the connecting rod, and the vibration of the vibration table is achieved under the sliding cooperation of the guide rail and the slider in the other vibration mechanism. The amplitude of the vibration seat can be adjusted by changing the angle between the adjustable eccentric block and the fixed eccentric block.

[0016] Furthermore, the operating table is also provided with a lifting mechanism and a guiding mechanism, the lifting mechanism is used to drive the storage table to rise and fall in a vertical direction, and the guiding mechanism is used to guide the base as the storage table rises and falls.

[0017] Furthermore, the lifting mechanism includes a rotatably arranged fourth lead screw, the fourth lead screw thread penetrates the fixed platform, the vibration platform is provided with a through hole for the fourth lead screw to pass through, and the diameter of the through hole is larger than the diameter of the fourth lead screw.

[0018] Furthermore, the guide mechanism includes a vertical slide bar fixedly arranged on the operating table, a slide seat is slidably arranged on the slide bar, and the slide seat is slidably connected to the base through a linear bearing.

[0019] The rotation of the fourth lead screw drives the fixed table to rise and fall in the vertical direction, thereby adjusting the position of the workpiece in the vertical direction and improving the flexibility of brush plating. The diameter of the through hole on the vibration table is larger than the diameter of the fourth lead screw, so that the fourth lead screw will not interfere with the vibration of the vibration table. When the fixed table is raised and lowered in the vertical direction, the two slides slide along the corresponding slide rods respectively, guiding the lifting and lowering of the fixed table; the setting of the linear bearing prevents the slide rod and the slide from interfering with the vibration of the vibration table.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The roller anode contacts the inner wall of the pipe by rolling, which helps to maintain uniform pressure, reduce the fluctuation of coating thickness, and ensure the uniformity of coating; at the same time, the contact by rolling reduces the fluctuation of current density, thereby reducing the generation of defects, which is conducive to improving the quality of brush plating; 2. The vibration table promotes the flow and renewal of the plating solution on the surface of the workpiece through reciprocating vibration, thereby effectively improving the diffusion efficiency of the plating solution and ensuring the uniform distribution of current between the anode and the workpiece; vibration also helps to reduce defects caused by uneven deposition during the plating process, improve the density and uniformity of the coating, and at the same time improve the bonding strength and surface quality of the coating; 3. The use of a roller anode in combination with a vibration table can achieve a more ideal brush plating effect: the roller anode contacts the surface of the workpiece by rolling, making the contact pressure more uniform; and the addition of the vibration platform further promotes the uniform distribution and flow of the plating solution; the combination of the two can not only improve the plating efficiency and reduce the fluctuation of the coating thickness, but also significantly reduce the defects such as burning, pinholes and uneven thickness that may occur during the plating process, and obtain a higher quality and more uniform coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a multi-degree-of-freedom pipe repair device according to an embodiment of the present application; Figure 2 This is a schematic diagram of the overall structure of a multi-degree-of-freedom pipe repair device from another angle according to an embodiment of the present application; Figure 3 It is a schematic diagram of the structure of the storage table in the embodiment of the present application; Figure 4 It is a partial schematic diagram of the plating solution spraying mechanism in the embodiment of the present application; Figure 5 is a partial schematic diagram of the anode mechanism in the embodiment of the present application; Figure 6 It is a partial schematic diagram mainly used to show the first horizontal moving mechanism and the synchronous driving assembly in the embodiment of the present application; Figure 7 It is a partial schematic diagram mainly used to show the second horizontal moving mechanism in the embodiment of the present application; Figure 8 It is a partial schematic diagram mainly used to show the vertical movement mechanism in the embodiment of the present application; Fig. 9 It is a partial schematic diagram mainly used to show the vibration mechanism in the embodiment of the present application; Fig.10 It is a partial schematic diagram mainly used to show another angle of the vibration mechanism in the embodiment of the present application.

[0022] Reference numerals: 1. Operating table; 11. Storage table; 111. Fixed table; 112. Vibrating table; 113. First slide rail; 114. Second slide rail; 115. Connecting plate; 12. Fixed frame; 2. Anode mechanism; 21. Mounting frame; 211. Shell; 22. Conductive roller; 23. Brush assembly; 231. Anode shaft; 232. Electric slip ring; 233. Limiting ring; 24. First driving member; 3. Plating solution spraying mechanism; 31. Plating solution box; 32. Plating solution circulation pump; 33. Fixed seat; 4. Three-dimensional moving mechanism; 41. First horizontal moving mechanism; 411. First optical axis; 412. First lead screw; 413. First sliding seat; 414. Synchronous wheel; 415. Synchronous belt; 416. Tensioner; 417. Second driving member; 42. Second horizontal moving mechanism; 421. Second optical axis; 422. Second lead screw; 423. Second sliding seat; 4231. Buffer plate; 4232. First spring; 4233. Fixing pin; 424. Third driving member; 43. Vertical moving mechanism; 431. Third optical axis; 432. Third lead screw; 433. Fourth driving member; 5. Vibration mechanism; 51. Base; 52. Vibration seat; 53. Vibration assembly; 531. Drive shaft; 532. Fixed eccentric block; 533. Adjustable eccentric block; 534. Fifth drive member; 54. Connecting rod; 55. Slider; 56. Guide rail; 57. Guide assembly; 571. Guide rod; 572. Second spring; 6. lifting mechanism; 61. fourth lead screw; 62. sixth driving member; 7. Guide mechanism; 71. Sliding rod; 72. Sliding seat; 73. Linear bearing. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-10 This application is described in further detail.

[0024] The present application embodiment discloses a multi-degree-of-freedom pipe repair device. Figure 1 and Figure 2 The multi-degree-of-freedom pipe repair device includes an operating table 1, a storage table 11, a vibration mechanism 5, an anode mechanism 2, a plating solution spraying mechanism 3 and a three-dimensional moving mechanism 4.

[0025] Reference Figure 3 and Figure 4The storage table 11 includes a fixed table 111 and a vibration table 112 slidably disposed on the fixed table 111. Specifically, a pair of parallel first slide rails 113 are fixedly disposed on the fixed table 111, a first sliding member is slidably disposed on the first slide rail 113, and a connecting plate 115 is fixedly connected to the first sliding member. A pair of parallel second slide rails 114 are fixedly disposed on the connecting plate 115, and the second slide rails 114 are orthogonal to the first slide rails 113; a second sliding member is slidably disposed on the second slide rail 114, and the second sliding member is fixedly connected to the vibration table 112.

[0026] Reference Figure 1 and Figure 2 There are two vibration mechanisms 5, which are used to drive the vibration table 112 to reciprocate and vibrate in two directions orthogonal to each other in the horizontal plane.

[0027] Reference Figure 3 and Figure 4 A fixing seat 33 is fixedly provided on the vibration table 112, and the pipe to be repaired is fixed on the fixing seat 33 by a conductive clamp (not shown in the figure), and the conductive clamp is connected to the cathode of the power supply.

[0028] Reference Figure 2 and Figure 4 The plating liquid spraying mechanism 3 includes a plating liquid box 31 fixedly arranged on the vibration table 112, which is used to contain the plating liquid; a plating liquid circulation pump 32 is installed in the plating liquid box 31, and a nozzle (not shown in the figure) is installed at the liquid outlet of the plating liquid circulation pump 32, and the nozzle faces the inner wall of the pipe to be repaired.

[0029] Reference Figure 5 The anode mechanism 2 includes a mounting frame 21 and a conductive roller 22 rotatably mounted on the mounting frame 21, and also includes a first driving member 24 for driving the conductive roller 22 to rotate, and the first driving member 24 is a servo motor. The pipe to be repaired can be in the shape of a round tube, a square tube, etc., and the inner diameter of the pipe is larger than the diameter of the conductive roller 22. When in use, the pipe to be repaired is sleeved outside the conductive roller 22, so that the arc surface of the conductive roller 22 abuts against the inner wall of the pipe to be repaired.

[0030] Reference Figure 5 A housing 211 is fixedly disposed on the mounting frame 21, and a brush assembly 23 is disposed in the housing 211. The brush assembly 23 is used to connect the conductive roller 22 to the anode of the power supply. Specifically, the conductive roller 22 is coaxially fixed with the anode shaft 231, and the brush assembly 23 includes an electric slip ring 232 fixedly disposed in the housing 211. The anode shaft 231 is rotatably disposed in the electric slip ring 232. Both the anode shaft 231 and the electric slip ring 232 are conductive and in contact with each other, and the electric slip ring 232 is connected to the anode of the power supply through a wire. A limiting ring 233 is sleeved on the anode shaft 231, and the limiting ring 233 is located between the inner side wall of the housing 211 and the electric slip ring 232.

[0031] The three-dimensional moving mechanism 4 is used to drive the anode mechanism 2 to move freely in the three-dimensional space. Figure 1 and Figure 2 The three-dimensional moving mechanism 4 includes two parallel fixed frames 12 fixed on the operating table 1, a first sliding seat 413 is installed on the fixed frame 12 through a first horizontal moving mechanism 41, a second sliding seat 423 is installed on the first sliding seat 413 through a second horizontal moving mechanism 42, and the moving track of the second sliding seat 423 is orthogonal to the moving track of the first sliding seat 413. The anode mechanism 2 is installed on the second sliding seat 423 through a vertical moving mechanism 43.

[0032] Reference Figure 1 and Figure 6 A horizontal first optical axis 411 is fixedly disposed on each fixed frame 12, a first sliding seat 413 is slidably disposed on the first optical axis 411, and the first horizontal moving mechanism 41 includes a first lead screw 412 threadedly passing through the first sliding seat 413, and also includes a synchronous driving component for driving the two first lead screws 412 to rotate synchronously.

[0033] Specifically, refer to Figure 6 The synchronous drive assembly includes two synchronous wheels 414 and a synchronous belt 415 tensioned and wrapped around the two synchronous wheels 414. The two synchronous wheels 414 are coaxially fixed to the two first lead screws 412, respectively. The synchronous drive assembly also includes a second driving member 417 for driving one of the first lead screws 412 to rotate. The second driving member 417 is a servo motor. The synchronous drive assembly also includes a tensioning member 416 for tensioning the synchronous belt 415. In this embodiment, the tensioning member 416 includes a cylinder and a tensioning wheel connected to the end of the cylinder piston rod. When the cylinder piston rod is extended, the tensioning wheel is pressed against the inner side of the synchronous belt 415 to tension the synchronous belt 415.

[0034] One of the first lead screws 412 is driven to rotate by the second driving member 417 , and the two first lead screws 412 are driven by the synchronous belt 415 and the two synchronous wheels 414 , so that the two first sliding seats 413 slide synchronously along the corresponding first optical axis 411 .

[0035] Reference Figure 1 and Figure 7 A horizontal second optical axis 421 is fixedly arranged between the two first sliding seats 413, and the second optical axis 421 is orthogonal to the first optical axis 411; the second sliding seat 423 is slidably arranged on the second optical axis 421, and the second horizontal moving mechanism 42 includes a second lead screw 422 threadedly penetrating the second sliding seat 423 and a third driving member 424 for driving the second lead screw 422 to rotate, and the third driving member 424 is a servo motor. The second lead screw 422 is driven to rotate by the third driving member 424, so that the second sliding seat 423 slides along the second optical axis 421.

[0036] Reference Figure 1 and Figure 8 A vertical third optical axis 431 is fixedly arranged on the second sliding seat 423, and the mounting frame 21 is slidably arranged on the third optical axis 431. The vertical moving mechanism 43 includes a third lead screw 432 threadedly penetrating the mounting frame 21 and a fourth driving member 433 for driving the third lead screw 432 to rotate. The fourth driving member 433 is a servo motor. The third lead screw 432 is driven to rotate by the fourth driving member 433, so that the mounting frame 21 slides along the third optical axis 431.

[0037] The above three-dimensional moving mechanism 4 can realize free movement of the anode mechanism 2 in three-dimensional space.

[0038] Reference Figure 5 and Figure 8 A buffer plate 4231 is fixedly disposed on the second sliding seat 423, and an elastic member is disposed between the buffer plate 4231 and the mounting frame 21, and the elastic member is a first spring 4232, and the first spring 4232 is positioned on the buffer plate 4231 through a fixing pin 4233. A through hole is provided on the mounting frame 21 for the fixing pin 4233 to pass through, and the diameter of the through hole is smaller than the diameter of the first spring 4232.

[0039] When the mounting frame 21 moves in the vertical direction on the second sliding seat 423, the first spring 4232 acts as a buffer between the mounting frame 21 and the buffer plate 4231, thereby reducing the instantaneous impact force when the conductive roller 22 contacts the workpiece, thereby avoiding wear of the conductive roller 22 and the workpiece, thereby extending the service life of the conductive roller 22 and protecting the workpiece.

[0040] In order to realize the reciprocating vibration of the vibration table 112, refer to Fig. 9 and 10 Each vibration mechanism 5 includes a base 51 and a vibration base 52. A vibration assembly 53 is provided on the base 51 for driving the vibration base 52 to vibrate back and forth. A connecting rod 54 is fixedly connected to the vibration base 52. A slider 55 is fixedly connected to the end of the connecting rod 54. A guide rail 56 for the slider 55 to slide is provided on the side of the vibration table 112. In each vibration mechanism 5, the reciprocating sliding trajectory of the vibration base 52 is orthogonal to the sliding trajectory of the slider 55.

[0041] Reference Fig. 9 and 10 The vibration assembly 53 includes a driving shaft 531 rotatably arranged on the base 51 and a fixed eccentric block 532 fixed to the end of the driving shaft 531. The driving shaft 531 penetrates the vibration seat 52 and is rotatably connected to the vibration seat 52. The base 51 is provided with a fifth driving member 534 for driving the driving shaft 531 to rotate. The fifth driving member 534 is a servo motor. The base 51 is also provided with a guide assembly 57 for guiding the directional vibration of the vibration seat 52.

[0042] Reference Fig. 9 and 10 The guide assembly 57 includes two guide rods 571 fixedly connected to the base 51. The guide rods 571 penetrate the vibration base 52 along the vibration direction of the vibration base 52. The ends of the guide rods 571 are fixedly connected with protrusions. Elastic members are provided between the vibration base 52 and the base 51, and between the vibration base 52 and the protrusions. The elastic members are second springs 572 sleeved on the guide rods 571.

[0043] The two vibration mechanisms 5 are respectively used to drive the vibration table 112 to reciprocate in the X direction or the Y direction in the horizontal plane. When the fifth driving member 534 drives the driving shaft 531 to rotate, the fixed eccentric block 532 rotates to generate an unbalanced centrifugal force which is transmitted to the vibration seat 52 along the driving shaft 531. Under the guidance of the guide assembly 57, the vibration seat 52 vibrates in a direction. Specifically, the vibration seat 52 slides along the guide rod 571, and at the same time, the second springs 572 on both sides of the vibration seat 52 are alternately compressed to achieve the reciprocating vibration of the vibration seat 52. The thrust generated by the vibration of the vibration seat 52 is transmitted to the vibration table 112 along the connecting rod 54, and under the sliding cooperation of the guide rail 56 and the slider 55 in the other vibration mechanism 5, the reciprocating vibration of the vibration table 112 in the horizontal direction is achieved.

[0044] Further, refer to Fig.10 The end of the driving shaft 531 is also connected to an adjustable eccentric block 533, and the angle between the adjustable eccentric block 533 and the fixed eccentric block 532 is adjustable. By changing the angle between the adjustable eccentric block 533 and the fixed eccentric block 532, the amplitude of the vibration seat 52 can be adjusted; when the convex parts of the adjustable eccentric block 533 and the fixed eccentric block 532 face the same direction, the amplitude is the largest; when the convex parts of the eccentric block and the fixed eccentric block 532 face opposite directions, the amplitude is the smallest.

[0045] Further, refer to Figure 2 The operating table 1 is also provided with a lifting mechanism 6 and a guiding mechanism 7. The lifting mechanism 6 is used to drive the storage table 11 to rise and fall in the vertical direction, and the guiding mechanism 7 is used to guide the base 51 as the storage table 11 rises and falls.

[0046] Specifically, refer to Fig. 9 and 10The lifting mechanism 6 includes a fourth lead screw 61 rotatably arranged on the operating table 1, and also includes a sixth driving member 62 for driving the fourth lead screw 61 to rotate, and the sixth driving member 62 is a servo motor. The fourth lead screw 61 is threadedly penetrated through the fixed table 111, and the vibration table 112 is provided with a through hole for the fourth lead screw 61 to pass through. The diameter of the through hole is larger than the diameter of the fourth lead screw 61, so that the fourth lead screw 61 does not interfere with the vibration of the vibration table 112. The fourth lead screw 61 is driven to rotate by the sixth driving member 62, so that the fixed table 111 is lifted and lowered in the vertical direction, and the vibration table 112 is lifted and lowered synchronously with the fixed table 111, so as to adjust the position of the workpiece in the vertical direction and improve the flexibility of brush plating.

[0047] Reference Fig.10 The guide mechanism 7 includes a vertical slide bar 71 fixedly arranged on the operating table 1, a slide seat 72 is slidably arranged on the slide bar 71, and the slide seat 72 is slidably connected to the base 51 through a linear bearing 73. When the fixed table 111 is raised or lowered in the vertical direction, the two slide seats 72 slide along the corresponding slide bars 71 respectively, and play a guiding role in the raising and lowering of the fixed table 111; the setting of the linear bearing 73 prevents the slide bar 71 and the slide seat 72 from interfering with the vibration of the vibration table 112.

[0048] The implementation principle of a multi-degree-of-freedom pipe repair device in the embodiment of the present application is: The conductive roller 22 is connected to the anode of the power supply through the electric slip ring 232, the pipe to be repaired is connected to the cathode of the power supply, and the conductive roller 22 contacts the inner wall of the pipe to be repaired to connect the circuit. During brush plating, the first driving member 24 drives the conductive roller 22 to rotate, and the plating solution in the plating solution box 31 is sprayed to the inner wall of the pipe to be repaired through the plating solution circulation pump 32 and the nozzle, and the power is turned on at the same time, so that the plating layer is deposited on the inner wall of the pipe.

[0049] The setting of the conductive roller 22 overcomes the problem of the difficulty of traditional manual brush plating in the local repair of pipe fittings. Compared with the traditional sliding reciprocating motion, rolling contact helps to maintain uniform pressure, reduce the fluctuation of coating thickness, and help to improve the fluidity of the plating solution, thereby improving the uniformity of the coating and ensuring the uniformity of the coating; at the same time, the rolling contact reduces the fluctuation of current density, thereby reducing the generation of defects, which is conducive to improving the quality of brush plating.

[0050] The vibration table 112 promotes the flow and renewal of the plating solution on the surface of the workpiece through small-amplitude reciprocating vibration, thereby effectively improving the diffusion efficiency of the plating solution and ensuring uniform current distribution between the conductive roller 22 and the workpiece; vibration also helps to reduce defects caused by uneven deposition during the plating process, improve the density and uniformity of the coating, and at the same time enhance the bonding strength and surface quality of the coating.

[0051] The position of the anode mechanism 2 in the three-dimensional space is adjusted by the three-dimensional moving mechanism 4, and the lifting mechanism 6 is used to drive the placement table 11 to rise and fall in the vertical direction, so that the position of the anode mechanism 2 is adapted to the size, shape, and repair position of the workpiece, thereby improving the flexibility of brush plating; by adjusting the position of the anode mechanism 2 in the vertical direction, the pressure between the conductive roller 22 and the workpiece can be adjusted to meet the specific needs of the brush plating operation.

[0052] It should be noted that the device provided in the present application can be used not only for brush plating repair of pipe fittings, but also for brush plating of workpieces of other shapes, such as block workpieces. During operation, the block workpiece is fixed on the storage table 11, and the conductive roller 22 contacts the surface of the block workpiece to connect the circuit. During brush plating, the plating solution in the plating solution box 31 is sprayed onto the surface of the workpiece through the plating solution circulation pump 32 and the nozzle, and power is turned on at the same time, so that the plating layer is deposited on the surface of the workpiece.

[0053] The first driving member 24 drives the conductive roller 22 to rotate, and the three-dimensional moving mechanism 4 drives the anode mechanism 2 to move relative to the workpiece, and the rotation speed of the conductive roller 22 is consistent with the movement speed of the anode mechanism 2, so that there is no relative sliding between the conductive roller 22 and the workpiece, that is, the conductive roller 22 contacts the workpiece in a rolling manner. The contact in the rolling manner helps to reduce the resistance and wear of the conductive roller movement, which is beneficial to improve the brush plating speed and production efficiency, and reduce maintenance costs.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-degree-of-freedom pipe repair device, characterized in that: include: Operation table; A storage table is arranged on the operating table, the storage table includes a fixed table and a vibration table slidably arranged on the fixed table, and the pipe to be repaired is connected to the cathode of the power supply and fixed on the vibration table; A vibration mechanism, used for driving the vibration table to vibrate reciprocatingly in a horizontal plane; The anode mechanism includes a mounting frame and a conductive roller rotatably mounted on the mounting frame, wherein the arc surface of the conductive roller abuts against the inner wall of the pipe to be repaired; and also includes a brush assembly for connecting the conductive roller to the anode of the power supply; A plating liquid spraying mechanism, used for spraying the plating liquid onto the inner wall of the pipe to be repaired; The three-dimensional moving mechanism is used to drive the anode mechanism to move freely in three-dimensional space.

2. A multi-degree-of-freedom pipe repair device according to claim 1, characterized in that: The anode mechanism also includes a first driving member for driving the conductive roller to rotate; the conductive roller is coaxially fixed with an anode shaft, the brush electric assembly includes an electric slip ring fixedly arranged on the mounting frame, the anode shaft is rotatably arranged in the electric slip ring, the anode shaft and the electric slip ring are both conductive and in contact with each other, and the electric slip ring is connected to the power supply anode through a wire.

3. A multi-degree-of-freedom pipe repair device according to claim 2, characterized in that: The plating liquid spraying mechanism includes a plating liquid box for containing plating liquid, a plating liquid circulation pump arranged in the plating liquid box, and a spray head installed at the liquid outlet end of the plating liquid circulation pump, wherein the spray head faces the inner wall of the pipe to be repaired.

4. The multi-degree-of-freedom pipe repair device according to claim 1, characterized in that: Two vibration mechanisms are provided, and the two vibration mechanisms are respectively used to drive the vibration table to reciprocate and vibrate along two mutually orthogonal directions in a horizontal plane.

5. A multi-degree-of-freedom pipe repair device according to claim 4, characterized in that: The vibration mechanism includes a base and a vibration base, the base is provided with a vibration component for driving the vibration base to vibrate reciprocally; the vibration base is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a slider, and the side of the vibration table is provided with a guide rail for the slider to slide; the reciprocating sliding trajectory of the vibration base is orthogonal to the sliding trajectory of the slider.

6. A multi-degree-of-freedom pipe repair device according to claim 5, characterized in that: The vibration assembly includes a driving shaft rotatably arranged on the base and a fixed eccentric block fixed to the driving shaft, the driving shaft passes through the vibration seat and is rotatably connected to the vibration seat; a guide assembly is arranged on the base for guiding the directional vibration of the vibration seat; the driving shaft is also connected to an adjusting eccentric block, and the angle between the adjusting eccentric block and the fixed eccentric block can be adjusted.

7. The multi-degree-of-freedom pipe repair device according to claim 6, characterized in that: The guide assembly includes a guide rod fixed to the base, the guide rod passes through the vibration seat along the vibration direction of the vibration seat, and a protrusion is fixed to the end of the guide rod; elastic parts are provided between the vibration seat and the base, and between the vibration seat and the protrusion.

8. The multi-degree-of-freedom pipe repair device according to claim 4, characterized in that: The operating table is also provided with a lifting mechanism and a guiding mechanism, wherein the lifting mechanism is used to drive the storage table to rise and fall in a vertical direction, and the guiding mechanism is used to guide the base as the storage table rises and falls.

9. The multi-degree-of-freedom pipe repair device according to claim 8, characterized in that: The lifting mechanism comprises a rotatably arranged fourth lead screw, the fourth lead screw thread penetrates the fixed platform, the vibration platform is provided with a through hole for the fourth lead screw to pass through, and the diameter of the through hole is greater than the diameter of the fourth lead screw.

10. The multi-degree-of-freedom pipe repair device according to claim 9, characterized in that: The guide mechanism comprises a vertical slide bar fixedly arranged on the operating table, a slide seat is slidably arranged on the slide bar, and the slide seat is slidably connected to the base through a linear bearing.

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