Pipe fitting repairing device

Abstract

The invention relates to the field of electroplating, and particularly discloses a pipe fitting repairing device which comprises a storage table, 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 to-be-repaired pipe fitting is connected to a power source cathode; the anode mechanism comprises a mounting frame and a conductive roller rotationally arranged on the mounting frame, and the cambered surface peripheral side of the conductive roller abuts against the inner wall of the to-be-repaired pipe fitting; the brushing assembly is used for connecting the conductive roller with a power supply anode; 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 anodes make contact with the inner wall of the pipe fitting in a rolling mode, the problem that manual brush plating operation is large in difficulty is solved, meanwhile, uniform pressure can be kept, plating thickness fluctuation and current density fluctuation are reduced, plating uniformity is ensured, defects are reduced, and the brush plating quality is improved.

Description

Technical Field

[0001] The present application relates to the field of electroplating, and in particular to a pipe repairing 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; 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. In particular, 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 pipe fitting repair device.

[0004] The pipe repair device provided in this application adopts the following technical solution: A pipe repair device, comprising: A storage table, used to fix the pipe to be repaired, wherein the pipe to be repaired is connected to the cathode of the power supply; 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.

[0006] Furthermore, 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.

[0007] 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.

[0008] 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.

[0009] 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.

[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, the three-dimensional moving mechanism comprises: The guide member is arranged horizontally; A first bearing member is mounted on the guide member via a first horizontal moving mechanism; a second bearing member, mounted on the first bearing member through a second horizontal moving mechanism, wherein a moving track of the second bearing member is orthogonal to a moving track of the first bearing member; The anode mechanism is mounted on the second carrier through a vertical moving mechanism.

[0012] Furthermore, the guide member includes two parallel fixed frames, each of which is fixedly provided with a horizontal first optical axis, the first supporting member is a first sliding seat slidably provided on the first optical axis, the first horizontal moving mechanism includes a first lead screw threadedly passing through the first sliding seat, and also includes a synchronous drive assembly for driving the two first lead screws to rotate synchronously.

[0013] Furthermore, the synchronous drive assembly includes two synchronous wheels and a synchronous belt tensioned and wrapped around the two synchronous wheels, the two synchronous wheels are coaxially fixed to the two first lead screws respectively, and the synchronous drive assembly also includes a second driving member for driving one of the first lead screws to rotate.

[0014] One of the first lead screws is driven to rotate by the second driving member, and under the transmission of the synchronous belt and the two synchronous wheels, the two first lead screws rotate synchronously, so that the two first sliding seats slide synchronously along the corresponding first optical axes respectively.

[0015] Furthermore, a second optical axis is fixedly arranged between the two first sliding seats, the second supporting member is a second sliding seat slidably arranged on the second optical axis, and the second horizontal moving mechanism includes a second lead screw threadedly passing through the second sliding seat and a third driving member for driving the second lead screw to rotate.

[0016] The second lead screw is driven to rotate by the third driving member, so that the second sliding seat slides along the second optical axis.

[0017] Furthermore, a vertical third optical axis is fixedly disposed on the second sliding seat, the mounting frame is slidably disposed on the third optical axis, and the vertical moving mechanism includes a third lead screw threadedly penetrating the mounting frame and a fourth driving member for driving the third lead screw to rotate.

[0018] The third lead screw is driven to rotate by the fourth driving member, so that the mounting frame slides along the third optical axis.

[0019] Through the above three-dimensional moving mechanism, the anode mechanism can be freely moved in three-dimensional space.

[0020] Furthermore, a buffer plate is fixedly provided on the second sliding seat, and an elastic member is provided between the buffer plate and the mounting frame.

[0021] When the mounting bracket moves in the vertical direction on the second sliding seat, the elastic member acts as a buffer between the mounting bracket and the buffer plate, thereby reducing the instantaneous impact force of the conductive roller when it contacts the workpiece to be brush plated, thereby avoiding wear of the conductive roller and the workpiece to be brush plated, thereby extending the service life of the conductive roller and protecting the workpiece to be brush plated.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The roller anode used in the present application contacts the inner wall of the pipe by rolling. Compared with the traditional sliding reciprocating motion, the rolling contact helps to maintain uniform pressure, reduce the fluctuation of the 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 method reduces the fluctuation of the current density, thereby reducing the generation of defects, which is conducive to improving the quality of brush plating; 2. The movement resistance of the roller is small, which is conducive to improving the brush plating speed and production efficiency; 3. Roller anodes wear more slowly and have a longer service life, thus reducing maintenance costs; 4. The three-dimensional moving mechanism can adjust the position of the roller anode in three-dimensional space, which not only improves the flexibility of brush plating, but also can keep the roller anode moving at a uniform speed on the surface of the workpiece, and can also adjust the pressure between the roller anode and the workpiece, which helps to avoid defects such as burning and pinholes in the coating caused by excessive local current density. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a pipe repair device according to an embodiment of the present application; Figure 2 It is a partial schematic diagram of the plating solution spraying mechanism in the embodiment of the present application; Figure 3 is a partial schematic diagram of the anode mechanism in the embodiment of the present application; Figure 4 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 5 It is a partial schematic diagram mainly used to show the second horizontal moving mechanism in the embodiment of the present application; Figure 6 It is a partial schematic diagram mainly used to show the vertical moving mechanism in the embodiment of the present application.

[0024] Figure numerals: 1, operating table; 11, storage table; 12, fixing frame; 2, anode mechanism; 21, mounting frame; 211, housing; 22, conductive roller; 23, brush assembly; 231, anode shaft; 232, electric slip ring; 233, limit ring; 24, first driving member; 3, plating solution spraying mechanism; 31, plating solution box; 32, plating solution circulation pump; 33, fixing seat; 4, three-dimensional moving mechanism; 41, first horizontal moving mechanism; 411, first optical axis; 412, first A lead screw; 413, a first sliding seat; 414, a synchronous wheel; 415, a synchronous belt; 416, a tensioning member; 417, a second driving member; 42, a second horizontal moving mechanism; 421, a second optical axis; 422, a second lead screw; 423, a second sliding seat; 4231, a buffer plate; 4232, an elastic member; 4233, a fixing pin; 424, a third driving member; 43, a vertical moving mechanism; 431, a third optical axis; 432, a third lead screw; 433, a fourth driving member. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-6 This application is described in further detail.

[0026] The present application embodiment discloses a pipe repair device. Figure 1 The pipe repair device includes an operating table 1, an anode mechanism 2, a plating solution spraying mechanism 3 and a three-dimensional moving mechanism 4.

[0027] Reference Figure 1 and Figure 2 A storage table 11 is fixedly provided on the operating table 1, and a fixing seat 33 is fixedly provided on the storage table 11. The pipe to be repaired is fixed on the fixing seat 33 through a conductive clamp (not shown in the figure), and the conductive clamp is connected to the cathode of the power supply.

[0028] Reference Figure 1 and Figure 2 The plating liquid spraying mechanism 3 includes a plating liquid box 31 fixedly arranged on the storage table 11, 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 3 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 3 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 The three-dimensional moving mechanism 4 includes two parallel fixed frames 12 fixed on the operating table 1, each fixed frame 12 is installed with a first sliding seat 413 through a first horizontal moving mechanism 41, and a second sliding seat 423 is installed between the two first sliding seats 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 4A 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 4 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 5 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. 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 6 A vertical third optical axis 431 is fixedly disposed on the second sliding seat 423, and the mounting frame 21 is slidably disposed 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, and 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] Further, refer to Figure 3 and Figure 6 A buffer plate 4231 is fixedly disposed on the second sliding seat 423, and an elastic member 4232 is disposed between the buffer plate 4231 and the mounting frame 21. The elastic member 4232 is a spring, and the spring 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 spring.

[0039] When the mounting frame 21 moves downward in the vertical direction on the second sliding seat 423, the elastic member 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 to be brush plated, thereby avoiding wear of the conductive roller 22 and the workpiece to be brush plated, thereby extending the service life of the conductive roller 22 and protecting the workpiece to be brush plated.

[0040] The implementation principle of a 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 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.

[0041] 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.

[0042] The position of the anode mechanism 2 in the three-dimensional space is adjusted by the three-dimensional moving mechanism 4 so that the position of the anode mechanism 2 is adapted to the size, shape and repair position of the pipe to be repaired, 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 pipe to be repaired can be adjusted to meet the specific needs of the brush plating operation.

[0043] 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.

[0044] 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.

[0045] 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 pipe repair device, characterized in that: include: A storage table, used to fix the pipe to be repaired, wherein the pipe to be repaired is connected to the cathode of the power supply; 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 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.

3. A pipe repair device according to claim 1, characterized in that: 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.

4. A pipe repair device according to claim 1, 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.

5. A pipe repair device according to claim 1, characterized in that: The three-dimensional moving mechanism comprises: The guide member is arranged horizontally; A first bearing member is mounted on the guide member via a first horizontal moving mechanism; a second bearing member, mounted on the first bearing member through a second horizontal moving mechanism, wherein a moving track of the second bearing member is orthogonal to a moving track of the first bearing member; The anode mechanism is mounted on the second carrier through a vertical moving mechanism.

6. A pipe repair device according to claim 5, characterized in that: The guide member includes two parallel fixed frames, each of which is fixedly provided with a horizontal first optical axis, the first bearing member is a first sliding seat slidably provided on the first optical axis, the first horizontal moving mechanism includes a first lead screw threadedly passing through the first sliding seat, and also includes a synchronous drive assembly for driving the two first lead screws to rotate synchronously.

7. A pipe repair device according to claim 6, characterized in that: The synchronous drive assembly includes two synchronous wheels and a synchronous belt tensioned and wrapped around the two synchronous wheels. The two synchronous wheels are coaxially fixed to the two first lead screws respectively. The synchronous drive assembly also includes a second driving member for driving one of the first lead screws to rotate.

8. A pipe repair device according to claim 7, characterized in that: A second optical axis is fixedly arranged between the two first sliding seats, the second bearing member is a second sliding seat slidably arranged on the second optical axis, and the second horizontal moving mechanism includes a second lead screw threadedly passing through the second sliding seat and a third driving member for driving the second lead screw to rotate.

9. A pipe repair device according to claim 8, characterized in that: A vertical third optical axis is fixedly arranged on the second sliding seat, the mounting frame is slidably arranged on the third optical axis, and the vertical moving mechanism comprises a third lead screw threadedly penetrating the mounting frame and a fourth driving member for driving the third lead screw to rotate.

10. A pipe repairing device according to claim 9, characterized in that: A buffer plate is fixedly arranged on the second sliding seat, and an elastic member is arranged between the buffer plate and the mounting frame.

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