Plasma polishing machine

Abstract

The utility model provides a plasma polishing machine which comprises a shell and a polishing water tank arranged in the shell, a fixing plate with a groove hole is fixedly installed in the shell, and a lifting mechanism is fixedly installed on the outer wall of the fixing plate. The lifting mechanism comprises a fixing frame fixedly connected with the fixing plate, a guide rail is fixedly installed on the fixing frame, a sliding rail seat is slidably connected to the guide rail and fixedly connected with an insulating block, a through hole is formed in the insulating block, a bearing seat is fixedly installed at the top end of the fixing frame, and the insulating block is connected with a lead screw penetrating through the through hole through a nut. One end of the lead screw is fixedly connected with the bearing seat, the other end of the lead screw is connected with a gear motor fixedly installed at the bottom of the fixing frame, and a connecting hole is further formed in the insulating block and connected with a clamp assembly capable of extending into the polishing water tank through the groove hole. The lifting mechanism can enable the clamp assembly with the workpiece to move up and down in the polishing water tank, so that the workpiece can be polished and deburred conveniently.

Description

Technical Field

[0001] This utility model belongs to the technical field of plasma polishing machines, and in particular relates to a plasma polishing machine. Background Technology

[0002] The working principle of a plasma polishing machine is to adsorb metal ions that are detached from the workpiece by an electric current in the polishing liquid onto the surface of the workpiece. This results in a high current impact on the protrusions of the workpiece, which removes ions quickly. As the current flows, the unevenness changes continuously, gradually smoothing out the rough surface of the workpiece, thereby achieving a polishing effect that increases the gloss of the workpiece surface.

[0003] Currently, the polishing fixtures of plasma polishing machines on the market have complex structures and high manufacturing costs. For example, Chinese patent CN215617273U discloses a fixing device for a polishing fixture. This patent achieves the rotation of the polishing fixture through a structure of multiple motors and multiple synchronous pulleys, and completes the polishing of the workpiece on the polishing fixture from multiple angles. However, the polishing fixture structure in this patent is complex and not conducive to industrial production.

[0004] Furthermore, current plasma polishing machines on the market use PP board welding, especially the polishing water tank inside the plasma polishing machine, which is also welded. Due to limitations in welding technology, the welding effect of the polishing water tank may be poor, affecting its use.

[0005] Based on the above problems, there is a need to provide a new type of plasma polishing machine. Utility Model Content

[0006] The main purpose of this utility model is to provide a plasma polishing machine to address the shortcomings of existing technologies.

[0007] To achieve the above objectives, this utility model provides the following technical solution.

[0008] A plasma polishing machine includes a housing, an integrally formed polishing tank disposed within the housing, and a polishing power supply. A fixed plate with slots is fixedly installed inside the housing, positioned above the polishing tank. A lifting mechanism is fixedly installed on the outer wall of the fixed plate. The lifting mechanism includes a fixed frame fixedly connected to the fixed plate, a guide rail fixedly installed on the fixed frame, a slide rail seat slidably connected to the guide rail, and an insulating block fixedly connected to the slide rail seat. The insulating block has a through hole aligned with the sliding direction of the slide rail seat. A bearing seat is fixedly installed at the top of the fixed frame. The insulating block is connected to a lead screw passing through the through hole via a nut. One end of the lead screw is fixedly connected to the bearing seat, and the other end is connected to a reduction motor fixedly installed at the bottom of the fixed frame. The insulating block also has a connecting hole, which connects to a clamping assembly that can extend into the polishing tank through the slot. The clamping assembly is used to place the workpiece to be polished and can slide up and down along the guide rail along with the slide rail seat, together with the insulating block.

[0009] As a preferred embodiment of the plasma polishing machine described in this utility model, limit switches are respectively installed at the upper and lower ends of the fixing frame.

[0010] As a preferred embodiment of the plasma polishing machine described in this utility model, an acid and alkali resistant plastic plate is fixedly installed around the inner cavity of the housing located above the polishing water tank.

[0011] As a preferred embodiment of the plasma polishing machine of this utility model, the clamping assembly includes an anode rod connected to the connecting hole, the anode rod being connected to a bracket for fixing the anode rod, and a plurality of circumferentially distributed hooks being connected to the bottom of the bracket, the hooks being able to extend into the polishing water tank, and a negative electrode plate being fixedly installed on the inner wall of the polishing water tank.

[0012] As a preferred embodiment of the plasma polishing machine described in this utility model, a heating assembly consisting of several heating tubes is fixedly installed on the inner wall of the polishing water tank, and the heating assembly is used to heat the water in the polishing water tank.

[0013] As a preferred embodiment of the plasma polishing machine described in this utility model, the surface wall of the polishing water tank is provided with a plurality of air inlets for connecting to an air pump, the surface wall of the polishing water tank is also provided with a water inlet for connecting to a water pipe, the bottom of the housing is provided with a water inlet pipe, the water inlet is connected to the water inlet pipe through a water pipe, and the water inlet pipe is connected to a water pump.

[0014] As a preferred embodiment of the plasma polishing machine described in this utility model, a miniature high-pressure fan is installed on the top of the housing, and a drain hole is provided at the bottom of the housing. The miniature high-pressure fan discharges the water vapor generated during polishing inside the housing through the drain hole.

[0015] As a preferred embodiment of the plasma polishing machine described in this utility model, a power distribution cabinet is also provided inside the housing, and the power distribution cabinet is separated from the polishing water tank by a partition provided inside the housing.

[0016] As a preferred embodiment of the plasma polishing machine described in this utility model, the polishing power supply is installed at the bottom of the housing and is integrally formed with the housing.

[0017] As a preferred embodiment of the plasma polishing machine described in this utility model, the housing is further provided with an observation door, and a magnetic switch is fixedly installed on the inner side of the observation door.

[0018] Compared with the prior art, the present invention will have at least the following beneficial effects:

[0019] ① The lifting mechanism in this invention allows the clamping assembly to move up and down along the guide rail following the insulating block, and the workpiece on the clamping assembly to move up and down within the polishing water tank, facilitating polishing and deburring of the workpiece. ② The combined use of the lead screw, geared motor, and limit switch in the lifting mechanism enables the insulating block to switch directions along the lead screw's upward and downward movement. Compared to the stepper motor used in existing technology, the geared motor is less expensive. ③ An acid- and alkali-resistant plastic plate is fixedly installed around the inner cavity above the polishing water tank inside the housing. This plastic plate not only provides waterproofing but also protects the housing. ④ The polishing water tank is integrally molded, eliminating the need for welding, thus saving welding costs and solving the leakage problem that may occur with welding. ⑤ The connection of the air pump to the polishing water tank ensures uniform heating inside. ⑥ The polishing power supply is integrally installed at the bottom of the housing, saving space occupied by the polishing power supply within the plasma polishing machine. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a plasma polishing machine according to the present invention;

[0022] Figure 2This is a front sectional view of a plasma polishing machine according to the present invention;

[0023] Figure 3 This is a rear sectional view of a plasma polishing machine according to the present invention;

[0024] Figure 4 This is a schematic diagram of part of the mechanism of a plasma polishing machine according to the present invention;

[0025] Figure 5 This is a partial cross-sectional view of a plasma polishing machine according to the present invention.

[0026] The reference numerals in the figures include:

[0027] 1. Housing; 2. Polishing water tank; 3. Polishing power supply; 4. Fixing plate; 5. Slot; 6. Fixing bracket; 7. Guide rail; 8. Slide rail seat; 9. Insulating block; 10. Through hole; 11. Connection hole; 12. Bearing seat; 13. Nut; 14. Lead screw; 15. Coupling; 16. Gear motor; 17. Limit switch; 18. Plastic plate; 19. Anode rod; 20. Bracket; 21. Hook; 22. Negative electrode plate; 23. Heating tube; 24. Air inlet; 25. Water inlet; 26. Water inlet pipe; 27. Miniature high-pressure blower; 28. Drain hole; 29. ​​Distribution cabinet; 30. Partition; 31. Observation door; 32. Magnetic switch. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0029] like Figures 1 to 5 As shown, a plasma polishing machine includes a housing 1 made of 304 stainless steel, an integrally formed polishing water tank 2 disposed inside the housing 1, and a polishing power supply 3. The integrally formed polishing water tank 2 does not require welding, which saves welding costs and solves the problem of water leakage that may occur due to welding. The polishing power supply 3 is installed at the bottom of the housing 1 and is integrally set with the housing 1. This installation method can save the space occupied by the polishing power supply 3. A fixing plate 4 with slots 5 is fixedly installed inside the housing 1. The fixing plate 4 is located above the polishing water tank 2, and a lifting mechanism is fixedly installed on the outer wall of the fixing plate 4.

[0030] Specifically, such as Figure 4 and Figure 5As shown, the lifting mechanism includes a fixed frame 6 fixedly connected to the fixed plate 4. A guide rail 7 is fixedly installed on the fixed frame 6, and a slide rail seat 8 is slidably connected to the guide rail 7. The slide rail seat 8 is fixedly connected to an insulating block 9. The insulating block 9 is used to isolate the electrode from other components inside the housing 1 to prevent short circuits and ensure the safe operation of the plasma polishing machine. A through hole 10 is provided on the insulating block 9, which is aligned with the sliding direction of the slide rail seat 8. A bearing seat 12 is fixedly installed at the top of the fixed frame 6. The insulating block 9 is connected to a lead screw 14 passing through the through hole 10 via a nut 13. One end of the lead screw 14 is fixedly connected to the bearing seat 12. The other end is connected to the geared motor 16 fixedly installed at the bottom of the fixed frame 6 via a coupling 15. In the prior art, stepper motors are usually used, but stepper motors are expensive. In this embodiment, the use of geared motor 16 can reduce the cost of use. The insulating block 9 is also provided with a connection hole 11. The connection hole 11 is connected to a clamping assembly that can be inserted into the polishing water tank 2 through the slot hole 5. The clamping assembly is used to place the workpiece to be polished. The clamping assembly can slide up and down along the guide rail 7 together with the insulating block 9 and the slide rail seat 8. This allows the position of the workpiece in the polishing water tank 2 to be adjusted according to the actual situation of the polishing water tank 2.

[0031] The specific working principle of this embodiment is as follows: Start the reduction motor 16, the reduction motor 16 drives the lead screw 14 to rotate, which drives the insulating block 9 to move up and down along the lead screw 14, thereby driving the slide rail seat 8 fixedly connected to the insulating block 9 to slide up and down along the guide rail 7, and driving the clamp assembly connected to the insulating block 9 to follow the insulating block 9 to move up and down along the guide rail 7, so that the workpiece to be polished on the clamp assembly moves up and down in the polishing water tank 2.

[0032] Limit switches 17 are installed at the upper and lower ends of the fixed frame 6. Specifically, the limit switches 17 are used to control the movement of the insulating block 9 as it rises or falls along the lead screw 14. More specifically, when the insulating block 9 rises along the lead screw 14 and touches the limit switch 17 at the upper end of the fixed frame 6, the reduction motor 16 stops running, flips the reduction motor 16, and changes the rotation direction of the lead screw 14 so that the lead screw 14 rotates downward. At this time, the insulating block 9 falls along the lead screw 14 and drives the clamp assembly to fall downward, thereby moving the workpiece downward in the polishing water tank 2. When the insulating block 9 falls along the lead screw 14 and touches the limit switch 17 at the lower end of the fixed frame 6, the reduction motor 16 stops running again, and flips the reduction motor 16 again, changing the rotation direction of the lead screw 14 again so that the lead screw 14 rotates upward. At this time, the insulating block 9 rises along the lead screw 14 and drives the clamp assembly to rise upward, thereby moving the workpiece upward in the polishing water tank 2.

[0033] Acid and alkali resistant plastic plates 18 are fixedly installed around the inner cavity of the shell 1 located above the polishing water tank 2. The use of acid and alkali resistant plastic plates 18 can both waterproof the shell 1 and protect it. In the actual installation of plastic plates 18, structural adhesive is required to seal the splicing gap between the shell 1 and the plastic plates 18.

[0034] In this embodiment, the plasma polishing machine utilizes the combined action of the anode and cathode (i.e., the negative electrode plate 22) to form an electric field, driving the generation and movement of plasma. The generated plasma polishes and deburrs the surface of the workpiece. Therefore, the fixture assembly includes an anode rod 19 connected to the connecting hole 11. The anode rod 19 is connected to a bracket 20 for fixing the anode rod 19. The bottom of the bracket 20 is connected to several circumferentially distributed hooks 21. The hooks 21 can extend into the polishing water tank 2. The negative electrode plate 22 is fixedly installed on the inner wall of the polishing water tank 2. The workpiece to be polished is placed on the hooks 21.

[0035] A heating assembly consisting of several heating tubes 23 is fixedly installed on the inner wall of the polishing water tank 2. The heating assembly is used to heat the water in the polishing water tank 2. In this embodiment, the heating tubes 23 are selected as quartz heating tubes 23, which have the advantages of fast heating, good waterproof effect, strong acid and alkali resistance and long service life.

[0036] The polishing water tank 2 has several air inlets 24 on its surface wall for connecting to an air pump. After the air pump is connected to the polishing water tank 2, the internal heating of the polishing water tank 2 can be more uniform, improving the efficiency of the polishing water tank 2. The polishing water tank 2 also has water inlets 25 on its surface wall for connecting to a water pipe. A water inlet pipe 26 is provided at the bottom of the housing 1. The water inlets 25 are connected to the water inlet pipe 26 through the water pipe. The water inlet pipe 26 is connected to the water pump located outside the housing 1. This arrangement is used to continuously and automatically replenish water into the polishing water tank 2.

[0037] When the workpiece is plasma polished in the polishing water tank 2, a large amount of water vapor will be generated due to the high temperature inside the shell 1. Therefore, it is necessary to discharge the water vapor out of the shell 1. In this embodiment, a miniature high-pressure blower 27 is installed on the top of the shell 1 and a drain hole 28 is provided at the bottom of the shell 1. The miniature high-pressure blower 27 discharges the water vapor generated by polishing inside the shell 1 through the drain hole 28.

[0038] like Figure 2 As shown, a power distribution cabinet 29 is also installed inside the housing 1. The power distribution cabinet 29 is separated from the polishing water tank 2 by a partition 30 installed inside the housing 1. The independent installation of the power distribution cabinet 29 is safer and more convenient to maintain.

[0039] like Figure 1 and Figure 4As shown, in order to facilitate observation of the polishing process inside the housing 1, an observation door 31 is provided on the housing 1. A magnetic switch 32 is fixedly installed on the inner side of the observation door 31. When the workpiece polishing operation is carried out inside the housing 1, the observation door 31 is opened and the plasma polishing machine is automatically powered off to protect personal safety.

[0040] Understandably, plasma polishing machines are also equipped with an operation panel for easy operation and control of the polishing process.

[0041] It is also understandable that casters are provided at the four corners of the bottom of the housing 1 to facilitate the movement of the plasma polisher.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A plasma polishing machine, comprising a shell (1), an integrally formed polishing water tank (2) arranged in the shell (1), and a polishing power supply (3), characterized in that, a fixed plate (4) with a slot hole (5) is fixedly installed inside the shell (1), the fixed plate (4) is located above the polishing water tank (2), and an outer wall of the fixed plate (4) is fixedly installed with a lifting mechanism; the lifting mechanism comprises a fixed frame (6) fixedly connected with the fixed plate (4), a guide rail (7) fixedly installed on the fixed frame (6), a sliding rail seat (8) slidingly connected with the guide rail (7), an insulation block (9) fixedly connected with the sliding rail seat (8), a through hole (10) formed in the insulation block (9) and consistent with the sliding direction of the sliding rail seat (8), a bearing seat (12) fixedly installed at the top end of the fixed frame (6), the insulation block (9) connected with a lead screw (14) passing through the through hole (10) through a nut (13), one end of the lead screw (14) fixedly connected with the bearing seat (12), the other end of the lead screw (14) connected with a speed reducer motor (16) fixedly installed at the bottom of the fixed frame (6) through a shaft coupling (15), and the insulation block (9) further provided with a connecting hole (11) connected with a clamp assembly capable of extending into the polishing water tank (2) through the slot hole (5); the clamp assembly is used for placing a workpiece to be polished, and the clamp assembly can slide up and down along the guide rail (7) together with the insulation block (9) and the sliding rail seat (8).

2. The plasma polishing machine of claim 1, wherein, limit switches (17) are respectively installed at the upper and lower ends of the fixed frame (6).

3. The plasma polishing machine of claim 1, wherein, acid and alkali resistant plastic plates (18) are fixedly installed around the inner cavity of the shell (1) above the polishing water tank (2).

4. The plasma polishing machine of claim 1, wherein, the clamp assembly comprises an anode rod (19) connected with the connecting hole (11), the anode rod (19) connected with a support (20) for fixing the anode rod (19), the support (20) connected with a plurality of circumferentially distributed hooks (21) at the bottom, the hooks (21) capable of extending into the polishing water tank (2), and a cathode plate (22) fixedly installed on the inner wall of the polishing water tank (2).

5. The plasma polishing machine of claim 4, wherein, a heating assembly composed of a plurality of heating pipes (23) is fixedly installed on the inner wall of the polishing water tank (2), and the heating assembly is used for heating water in the polishing water tank (2).

6. The plasma polishing machine of claim 5, wherein, a plurality of air inlets (24) for connecting air pumps are arranged on the surface wall of the polishing water tank (2), the surface wall of the polishing water tank (2) is further provided with a water inlet (25) for connecting a water pipe, the bottom of the shell (1) is provided with a water inlet pipe (26), the water inlet (25) is in communication with the water inlet pipe (26) through a water pipe, and the water inlet pipe (26) is in communication with a water inlet pump.

7. The plasma polishing machine of claim 6, wherein, a miniature high-pressure air blower (27) is installed at the top of the shell (1), a drain hole (28) is arranged at the bottom of the shell (1), and the miniature high-pressure air blower (27) discharges water vapor generated by polishing in the shell (1) through the drain hole (28).

8. The plasma polishing machine of claim 1, wherein, The housing (1) is also equipped with a power distribution cabinet (29), which is separated from the polishing water tank (2) by a partition (30) provided in the housing (1).

9. The plasma polishing machine of claim 1, wherein, The polishing power supply (3) is installed at the bottom of the housing (1) and is integrally formed with the housing (1).

10. The plasma polishing machine of claim 1, wherein, The housing (1) is also provided with an observation door (31), and a magnetic switch (32) is fixedly installed on the inner side of the observation door (31).

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