Copper pipe polishing device with grinding disc convenient to replace and using method of copper pipe polishing device

Abstract

The invention relates to the technical field of copper pipe polishing devices, in particular to a copper pipe polishing device with a grinding disc convenient to replace and a using method thereof.The copper pipe polishing device comprises a machine box, a feeding table and an auxiliary wheel, the feeding table is installed in the middle of the upper end of the machine box, and the auxiliary wheel and the polishing wheel are installed on the two sides of one end of the feeding table correspondingly; the polishing wheel is fixedly connected with a driving motor main shaft through a polishing wheel connecting piece; the driving motor is fixedly connected to the upper end of the case; according to the polishing wheel, the column rod internally provided with the circular truncated cone groove is inserted into the center hole, then the circular truncated cone groove formed in the column rod controls the arc-shaped protruding block to move towards the center point of the center hole, then the first positioning frame and the second positioning frame move towards the center point of the center hole, the polishing wheel can be taken down from the connecting shaft, and dismounting is convenient and fast; and during mounting, the polishing wheel can be positioned by directly crossing the first positioning frame and the second positioning frame, so that the polishing wheel is more convenient to mount and dismount, and the convenience of mounting and dismounting the polishing wheel is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of copper tube polishing devices, and in particular to a copper tube polishing device which is convenient for replacing a grinding disc and a use method thereof. Background Art

[0002] The copper tube polishing device is a mechanical device specially used for polishing the surface of the copper tube. It usually includes a polishing component, a support seat and at least one clamping component. The working principle of the copper tube polishing device is to drive the polishing disc to rotate at high speed through a motor, and use the combined action of the polishing disc and the polishing agent to rub against the surface of the copper tube to achieve the purpose of removing pollution, oxide layer and shallow marks on the surface of the copper tube;

[0003] The copper tube polishing device can improve the surface finish of the copper tube, enhance its aesthetics and durability, while reducing manual labor and improving processing efficiency;

[0004] When the polishing wheel of the copper tube polishing device is severely worn, it needs to be replaced. The existing polishing wheel is positioned by a nut. During the later disassembly process, a tool is needed to control the rotating shaft connected to the polishing wheel not to rotate, and then a tool is used to remove the nut that positions the polishing wheel to achieve disassembly of the polishing wheel. The disassembly is relatively cumbersome. Therefore, in view of the above problem, a copper tube polishing device and a method of using the same that are convenient for replacing a grinding disc are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a copper tube polishing device which is easy to replace the grinding disc and a method of using the same, so as to solve the problem that when the polishing wheel of the copper tube polishing device is severely worn, it is necessary to replace the polishing wheel. In the existing polishing wheel which is positioned by a nut, during the later disassembly process, a tool is needed to control the rotating shaft connected to the polishing wheel not to rotate, and then a tool is used to remove the nut which positions the polishing wheel to realize the disassembly of the polishing wheel, which is relatively cumbersome.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The cam is provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels respectively on one end of the guide wheels and a plurality of guide wheels respectively on the one end of the guide wheels and a plurality of guide wheels respectively on the one end of the guide wheels.

[0008] As a further optimization of the present invention, the polishing wheel is installed between the first positioning frame, the second positioning frame and the fixed baffle, the interior of the polishing wheel is connected to the connecting shaft through a raised plate, the polishing wheel and the connecting shaft have the same axis, two raised plates are provided, and the raised plates are parallel to each other.

[0009] As a further optimization of the present invention, the first positioning frame and the second positioning frame are both L-shaped, the second positioning frame is fixedly connected to the telescopic spring, the telescopic spring is arranged outside the guide rod, and the first positioning frame and the second positioning frame are exposed to the outside and the end away from the polishing wheel is arc-shaped.

[0010] As a further optimization of the present invention, there are two arc-shaped protrusions, which are arranged inside the center hole, and one side edge of the arc-shaped protrusion away from the first positioning frame and the second positioning frame is arc-shaped, and the arc-shaped protrusion corresponds one-to-one with the first positioning frame and the second positioning frame.

[0011] As a further optimization of the present invention, a control unit is installed on the upper end of the chassis, a current sensor is installed on the upper end of the drive motor, the control unit, the drive motor and the current sensor constitute a current monitoring unit, and the current monitoring unit is used to monitor the wear of the polishing wheel.

[0012] As a further optimization of the present invention, an alarm system is provided inside the control unit, and the alarm device prompts the operator of the wear status of the polishing wheel through a buzzer and an indicator light prompt screen.

[0013] As a further optimization of the present invention, the current sensor is used to collect the working current of the driving motor in real time, and the control unit is used to receive the real-time current data of the current sensor, monitor the wear state of the polishing wheel by comparing with the initial reference current, and issue an alarm when the polishing wheel reaches the wear threshold.

[0014] As a further optimization of the present invention, the control unit performs filtering processing on the current data, and uses average filtering or Kalman filtering to smooth the current fluctuation to reduce the influence of environmental interference and instantaneous current spikes.

[0015] As a further optimized content of the present invention, the current monitoring unit monitors the wear of the polishing wheel in the following steps:

[0016] Step 1: Setting the current reference value: The current sensor records the motor load current I when the polishing wheel is initially used. initial ;

[0017] Step 2: Real-time current collection: Collect the real-time current value I through the current sensor t ;

[0018] Step 3: Current change rate calculation: The control unit calculates the change rate of the current relative to the initial value;

[0019] The formula for calculating the rate of change is:

[0020]

[0021] Step 4: The control unit determines the wear of the polishing wheel, and the judgment standard is: if △I ≥ the set threshold, it is determined that the polishing wheel reaches the wear limit;

[0022] Step 5: Alarm triggering: When the wear conditions are met, the system alarm is triggered to prompt the polishing wheel to be replaced.

[0023] As a further optimization of the present invention, the following steps are included: Step I: When the polishing wheel needs to be replaced, the current sensor records the motor load current I when the polishing wheel is initially used. initial At the same time, the real-time current value I is collected through the current sensor t ,During this process, the control unit calculates the rate of change of the current current relative to the ,initial value. When △I ≥ the set threshold, it is determined that the ,polishing wheel reaches the wear limit, triggering the system alarm, ,and prompting the replacement of the polishing wheel;

[0024] Step II: The whole equipment is powered off and the polishing wheel is replaced: a column rod with a truncated cone groove is inserted into the center hole, and the arc-shaped protrusion is controlled to move toward the center point of the center hole through the truncated cone groove inside the column rod, thereby moving the first positioning frame and the second positioning frame toward the center point of the center hole. When the first positioning frame and the second positioning frame are completely inside the connecting shaft, the polishing wheel is directly removed from the connecting shaft to complete the disassembly;

[0025] Then pull out the column rod with the truncated cone groove inside, and install the new polishing wheel to the outside of the connecting shaft. After the installation is completed, the polishing wheel is positioned by the first positioning frame, the second positioning frame, the raised plate and the fixed baffle plate to complete the installation;

[0026] Step III: After replacement, control the device to run again: During the operation of the device, the first positioning frame and the second positioning frame can stably limit the polishing wheel under the action of the telescopic spring and the centrifugal force of the rotation of the connecting shaft.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the present invention, a column rod with a truncated cone groove is inserted into the center hole, and then the arc-shaped protrusion is controlled to move toward the center point of the center hole by the truncated cone groove provided inside the column rod, thereby making the first positioning frame and the second positioning frame move toward the center point of the center hole, so that the polishing wheel can be removed from the connecting shaft, and the disassembly is relatively convenient. When installing, the polishing wheel can be positioned by directly passing over the first positioning frame and the second positioning frame, which is more convenient and effectively improves the convenience of disassembly and assembly of the polishing wheel;

[0029] 2. In the present invention, the contact area of ​​the polishing wheel will decrease due to the reduction of radius during the wear process, and the friction force will change, thereby affecting the load current of the polishing motor. The wear condition can be indirectly judged by monitoring the change of the motor current, without directly measuring the polishing wheel. The existing current sensor can be used, which is low in cost and suitable for occasions with low requirements on wear accuracy, such as large batches, rough polishing, etc.

[0030] 3. In the present invention, during the operation of the equipment, the first positioning frame and the second positioning frame can further stabilize the polishing wheel under the action of the telescopic spring and the centrifugal force of the rotation of the connecting shaft, thereby ensuring the stability of the polishing wheel during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the polishing wheel connecting piece of the present invention;

[0033] Figure 3 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the position structure of the limiting hole of the present invention.

[0035] In the figure: 1. Chassis; 2. Feeding table; 3. Control unit; 4. Auxiliary wheel; 5. Driving motor; 6. Current sensor; 7. Polishing wheel;

[0036] 8. Polishing wheel connector; 81. Connecting shaft; 82. Fixed baffle; 83. Raised plate; 84. Center hole; 85. Limiting hole;

[0037] 86. Positioning mechanism; 861. First positioning frame; 862. Guide rod; 863. Telescopic spring; 864. Arc-shaped protrusion; 865. Second positioning frame; 866. Sliding hole. DETAILED DESCRIPTION

[0038] See also Figure 1-4 , the present invention provides a technical solution:

[0039] A copper tube polishing device for facilitating replacement of grinding discs and a method for using the same include a chassis 1, a feeding table 2 and an auxiliary wheel 4. The feeding table 2 is installed in the middle of the upper end of the chassis 1. The auxiliary wheel 4 and the polishing wheel 7 are installed on both sides of one end of the feeding table 2. The polishing wheel 7 is fixedly connected to the main shaft of the driving motor 5 through a polishing wheel connector 8. The driving motor 5 is fixedly connected to the upper end of the chassis 1. The polishing wheel connector 8 includes a connecting shaft 81. A fixed baffle 82 is welded and fixed on one side of the connecting shaft 81. A center hole 84 and a limit hole 85 are opened on the other side of the connecting shaft 81. The side of the connecting shaft 81 is fixedly connected There is a raised plate 83, and a positioning mechanism 86 is installed inside the center hole 84 and the limiting hole 85. The positioning mechanism 86 includes a first positioning frame 861. The bottom end of the first positioning frame 861 is fixedly connected with a guide rod 862 and a telescopic spring 863. The guide rod 862 is slidably connected to the second positioning frame 865 through a sliding hole 866. An arc-shaped protrusion 864 is welded and fixed at one end of the first positioning frame 861 and the second positioning frame 865; the center hole 84 and the limiting hole 85 are connected, and the first positioning frame 861 and the second positioning frame 865 are slidably connected to the connecting shaft 81 through the limiting hole 85.

[0040] As a further technical solution of this solution, the polishing wheel 7 is installed between the first positioning frame 861, the second positioning frame 865 and the fixed baffle 82, and the polishing wheel 7 is connected to the connecting shaft 81 through the raised plate 83. The polishing wheel 7 and the connecting shaft 81 have the same axis, and two raised plates 83 are provided, and the raised plates 83 are parallel to each other. Through the above arrangement, the polishing wheel 7 can be stably limited during the operation of the device;

[0041] As a further technical solution for implementing this solution, the first positioning frame 861 and the second positioning frame 865 are both L-shaped, the second positioning frame 865 is fixedly connected to the telescopic spring 863, the telescopic spring 863 is arranged outside the guide rod 862, and the first positioning frame 861 and the second positioning frame 865 are exposed outside and one end away from the polishing wheel 7 is arc-shaped. Through the above arrangement, the stability of the first positioning frame 861 and the second positioning frame 865 can be further improved;

[0042] As a further technical solution of the present invention, two arc-shaped protrusions 864 are provided, and the arc-shaped protrusions 864 are arranged inside the center hole 84. The edge of one side of the arc-shaped protrusion 864 away from the first positioning frame 861 and the second positioning frame 865 is arc-shaped. The arc-shaped protrusions 864 correspond to the first positioning frame 861 and the second positioning frame 865 one by one. Through the above arrangement, it is convenient to remove the polishing wheel 7 from the connecting shaft 81 at a later time.

[0043] As a technical solution for further implementation of this scheme, a control unit 3 is installed on the upper end of the chassis 1, and a current sensor 6 is installed on the upper end of the drive motor 5. The control unit 3, the drive motor 5 and the current sensor 6 constitute a current monitoring unit, which is used to monitor the wear of the polishing wheel 7, and can monitor the wear of the polishing wheel 7 without contact;

[0044] As a technical solution for further implementation of this scheme, an alarm system is provided inside the control unit 3. The alarm device prompts the operator of the wear state of the polishing wheel through a buzzer and an indicator light prompt screen. The current sensor 6 is used to collect the working current of the drive motor in real time. The control unit 3 is used to receive the real-time current data of the current sensor 6, monitor the wear state of the polishing wheel 7 by comparing it with the initial reference current, and alarm when the polishing wheel 7 reaches the wear threshold. Through the above settings, an alarm can be issued after the polishing wheel 7 is worn;

[0045] As a technical solution for further implementation of this scheme, the control unit 3 performs filtering processing on the current data, and uses average filtering or Kalman filtering to smooth the current fluctuations to reduce the influence of environmental interference and instantaneous current spikes, thereby ensuring the accuracy of the data;

[0046] As a further technical solution of this solution, the current monitoring unit monitors the wear of the polishing wheel 7 in the following steps:

[0047] Step 1: Setting the current reference value: The current sensor 6 records the motor load current I of the polishing wheel 7 when it is initially used. initial ;

[0048] Step 2: Real-time current collection: collect the real-time current value I through the current sensor 6 t ;

[0049] Step 3: Current change rate calculation: The control unit 3 calculates the change rate of the current relative to the initial value;

[0050] The formula for calculating the rate of change is:

[0051]

[0052] Step 4: the control unit 3 determines the wear of the polishing wheel 7, and the judgment standard is: if △I ≥ the set threshold value 10%, it is determined that the polishing wheel 7 reaches the wear limit;

[0053] Step 5: Alarm triggering: When the wear condition is met, the system alarm is triggered to prompt the replacement of the polishing wheel 7. When the polishing wheel 7 is seriously worn, the alarm can be triggered in time to facilitate replacement;

[0054] As a technical solution for further implementation of this scheme, the following steps are included: Step I: Detecting that the polishing wheel 7 needs to be replaced: First, the current sensor 6 records the motor load current I of the polishing wheel 7 when it is initially used. initial At the same time, the current sensor 6 collects the real-time current value I t During this process, the control unit 3 calculates the rate of change of the current relative to the initial value. When △I ≥ the set threshold value of 10%, it is determined that the polishing wheel 7 has reached the wear limit, triggering the system alarm to prompt the replacement of the polishing wheel 7;

[0055] Step II: The whole equipment is powered off and the polishing wheel 7 is replaced: a column rod with a truncated cone groove is inserted into the center hole 84, and the arc-shaped protrusion 864 is controlled to move toward the center point of the center hole 84 through the truncated cone groove inside the column rod, so that the first positioning frame 861 and the second positioning frame 865 move toward the center point of the center hole 84. When the first positioning frame 861 and the second positioning frame 865 completely enter the interior of the connecting shaft 81, the polishing wheel 7 is directly removed from the connecting shaft 81 to complete the disassembly;

[0056] Then, the column rod with the truncated cone groove is pulled out, and the new polishing wheel 7 is installed on the outside of the connecting shaft 81. After the installation is completed, the polishing wheel 7 is positioned by the first positioning frame 861, the second positioning frame 865, the raised plate 83 and the fixed baffle plate 82 to complete the installation;

[0057] Step III: After replacement, control the device to run again: During the operation of the device, the first positioning frame 861 and the second positioning frame 865 can stably limit the polishing wheel 7 under the action of the telescopic spring 863 and the centrifugal force of the rotation of the connecting shaft 81.

[0058] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A copper tube polishing device that is easy to replace a grinding disc, comprising a chassis (1), a feeding table (2) and an auxiliary wheel (4), characterized in that: A feeding platform (2) is installed in the middle of the upper end of the chassis (1), and auxiliary wheels (4) and polishing wheels (7) are installed on both sides of one end of the feeding platform (2), respectively. The polishing wheel (7) is fixedly connected to the main shaft of the driving motor (5) through a polishing wheel connecting piece (8), and the driving motor (5) is fixedly connected to the upper end of the chassis (1); The polishing wheel connecting member (8) comprises a connecting shaft (81), a fixed baffle (82) is welded and fixed on one side of the connecting shaft (81), a center hole (84) and a limiting hole (85) are opened on the other side of the connecting shaft (81), a raised plate (83) is fixedly connected to the side of the connecting shaft (81), a positioning mechanism (86) is installed inside the center hole (84) and the limiting hole (85), and the positioning mechanism (86) comprises a first positioning frame (861), a guide rod (862) and a telescopic spring (863) are fixedly connected to the bottom end of the first positioning frame (861), the guide rod (862) is slidably connected to the second positioning frame (865) through a sliding hole (866), and an arc-shaped protrusion (864) is welded and fixed on one end of the first positioning frame (861) and the second positioning frame (865); The center hole (84) is connected to the limiting hole (85), and the first positioning frame (861) and the second positioning frame (865) are both slidably connected to the connecting shaft (81) through the limiting hole (85).

2. A copper tube polishing device for easy replacement of grinding discs according to claim 1, characterized in that: The polishing wheel (7) is installed between the first positioning frame (861), the second positioning frame (865) and the fixed baffle (82); the interior of the polishing wheel (7) is connected to the connecting shaft (81) via a raised plate (83); the polishing wheel (7) and the connecting shaft (81) have the same axis; two raised plates (83) are provided, and the raised plates (83) are parallel to each other.

3. A copper tube polishing device for easy replacement of grinding discs according to claim 1, characterized in that: The first positioning frame (861) and the second positioning frame (865) are both L-shaped, the second positioning frame (865) is fixedly connected to the telescopic spring (863), the telescopic spring (863) is arranged outside the guide rod (862), and the first positioning frame (861) and the second positioning frame (865) have an arc-shaped end exposed on the outside and away from the polishing wheel (7).

4. A copper tube polishing device for easy replacement of grinding discs according to claim 1, characterized in that: There are two arc-shaped protrusions (864), which are arranged inside the center hole (84). The edge of one side of the arc-shaped protrusion (864) away from the first positioning frame (861) and the second positioning frame (865) is arc-shaped, and the arc-shaped protrusion (864) corresponds one to one with the first positioning frame (861) and the second positioning frame (865).

5. The copper tube polishing device for easy replacement of grinding discs according to claim 1, characterized in that: A control unit (3) is installed on the upper end of the chassis (1), and a current sensor (6) is installed on the upper end of the drive motor (5). The control unit (3), the drive motor (5) and the current sensor (6) form a current monitoring unit, and the current monitoring unit is used to monitor the wear of the polishing wheel (7).

6. A copper tube polishing device for easy replacement of grinding discs according to claim 5, characterized in that: The control unit (3) is internally provided with an alarm system, and the alarm device prompts the operator of the wear state of the polishing wheel through a buzzer and an indicator light prompt screen.

7. A copper tube polishing device for easy replacement of grinding discs according to claim 5, characterized in that: The current sensor (6) is used to collect the working current of the drive motor in real time, and the control unit (3) is used to receive the real-time current data of the current sensor (6), monitor the wear state of the polishing wheel (7) by comparing with the initial reference current, and issue an alarm when the polishing wheel (7) reaches a wear threshold.

8. The copper tube polishing device for easy replacement of grinding discs according to claim 5, characterized in that: The control unit (3) performs filtering processing on the current data, and uses average filtering or Kalman filtering to smooth the current fluctuation, so as to reduce the influence of environmental interference and instantaneous current spikes.

9. A copper tube polishing device for easy replacement of grinding discs according to claim 5, characterized in that The current monitoring unit monitors the wear of the polishing wheel (7) in the following steps: Step 1: Setting the current reference value: The current sensor (6) records the motor load current I of the polishing wheel (7) when it is initially used. initial ; Step 2: Real-time current collection: Collect the real-time current value I through the current sensor (6) t ; Step 3: Current change rate calculation: The control unit (3) calculates the change rate of the current relative to the initial value; The formula for calculating the rate of change is: Step 4: The control unit (3) determines the wear of the polishing wheel (7), and the judgment standard is: if △I ≥ a set threshold (10%), it is determined that the polishing wheel (7) has reached the wear limit; Step 5: Alarm triggering: When the wear condition is met, the system alarm is triggered to prompt the polishing wheel to be replaced (7).

10. A method for using a copper tube polishing device that facilitates replacement of a grinding disc according to any one of claims 1 to 9, characterized in that The method comprises the following steps: Step I: when it is detected that the polishing wheel (7) needs to be replaced: first, the current sensor (6) records the motor load current when the polishing wheel (7) is initially used, and at the same time, the current sensor (6) collects the real-time current value. During this process, the control unit (3) calculates the rate of change of the current current relative to the initial value. When a threshold value (10%) is set, it is determined that the polishing wheel (7) has reached the wear limit, and a system alarm is triggered to prompt the polishing wheel (7) to be replaced; Step II: The entire device is powered off and the polishing wheel (7) is replaced: a column rod with a truncated cone groove is inserted into the center hole (84), and the arc-shaped protrusion (864) is controlled to move toward the center point of the center hole (84) through the truncated cone groove provided inside the column rod, thereby causing the first positioning frame (861) and the second positioning frame (865) to move toward the center point of the center hole (84). When the first positioning frame (861) and the second positioning frame (865) are completely inserted into the connecting shaft (81), the polishing wheel (7) is directly removed from the connecting shaft (81) to complete the disassembly; Then, the column rod with the truncated cone groove inside is pulled out, and a new polishing wheel (7) is installed on the outside of the connecting shaft (81). After the installation is completed, the polishing wheel (7) is positioned by the first positioning frame (861), the second positioning frame (865), the raised plate (83) and the fixed baffle (82), and the installation is completed; Step III: After replacement, control the device to operate again: During the operation of the device, the first positioning frame (861) and the second positioning frame (865) can stably limit the polishing wheel (7) under the action of the centrifugal force of the telescopic spring (863) and the rotation of the connecting shaft (81).

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