CN111254437A - A chemical milling precision machining device - Google Patents

Abstract

The invention discloses a chemical milling precision machining device, comprising a box body, a removable top cover is installed above the box body, a movable cover plate is arranged below the box body, a constant temperature heater is arranged under the movable cover plate, and the box The inside of the body is installed with a rotating shaft fixing structure, the rotating shaft fixing structure is connected to the rotating shaft rotating structure, a liquid storage tank is installed on one side of the box body, and there is a liquid inlet pipe between the liquid storage tank and the box body. Protruding into the box, its end located in the box is fitted with a float valve. The invention has the advantages of simple and reasonable structure and high machining accuracy; it reduces the labor intensity of workers and improves the machining accuracy; the spontaneity of the machining process and the automatic control of the reaction time minimize the influence of human factors on the machining; There are problems of insufficient machining accuracy and high rejection rate of traditional milling.

Description

A chemical milling precision machining device

technical field

The invention belongs to the technical field of chemical milling precision machining, and more particularly relates to a chemical milling precision machining device.

Background technique

The working principle of chemical milling is to first protect the non-machined surface of the workpiece with a corrosion-resistant coating, expose the surface to be machined, and then immerse the workpiece in a chemical solution for corrosion, so that the metal can be dissolved and removed according to specific parts to achieve the purpose of processing; Chemical milling precision machining achieves high-precision machining of local parts by precisely controlling the concentration of chemical solutions and precise machining time.

The rotating shaft is a key component of mechanical equipment. Due to its extremely high speed and need to bear a large load, it also has extremely high requirements on the machining accuracy of the rotating shaft. It is difficult to achieve the accuracy requirements with ordinary machining, and the cost is high and the time is long.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology, and to provide a chemical milling precision machining device with a simple structure and low cost, and the use of precision chemical milling to process it is an effective method to control its machining accuracy. For this reason, we propose A chemical milling precision machining device for a rotating shaft.

According to the technical solution provided by the present invention: a chemical milling precision machining device, comprising a box body, a removable top cover is installed above the box body, and a movable cover plate is installed below the box body, and the movable cover A constant temperature heater is installed under the plate, a rotating shaft fixing structure is installed inside the box body, the rotating shaft fixing structure is connected to the rotating shaft rotating structure, a liquid storage tank is installed on one side of the box body, and the liquid storage tank is connected to the tank There is a liquid inlet pipe between the bodies, one end of the liquid inlet pipe is connected to the liquid storage tank, and the other end extends into the tank body, and a floating ball valve is installed at the end located in the tank body.

As a further improvement of the present invention, the rotating shaft fixing structure includes a linear guide rail, a guide rail slider is installed on the linear guide rail, a clamper is installed on one side of the guide rail slider, and the other side of the guide rail slider is connected to a thimble There is a connecting shaft hole under the side wall of the box body, a connecting shaft is installed in the connecting shaft hole, a rotary seal ring is arranged between the connecting shaft and the connecting shaft hole, and one end of the connecting shaft is connected to the connecting shaft. Three-jaw chuck connection.

As a further improvement of the present invention, the rotating shaft structure includes a motor, the output shaft of the motor is connected to one end of the connecting shaft, and the motor is connected to the timing controller.

As a further improvement of the present invention, the output shaft of the motor is connected to one end of the connecting shaft through a coupling.

As a further improvement of the present invention, the motor is installed in the motor box.

As a further improvement of the present invention, the detachable top cover adopts thermal insulation material.

As a further improvement of the present invention, the removable top cover is provided with a handle.

As a further improvement of the present invention, the movable cover plate and the thermostatic heater are integrally connected by bolts.

As a further improvement of the present invention, a support seat is installed under the motor box and the box body.

As a further improvement of the present invention, the sides of the box body are provided with thermal insulation layers.

Compared with the prior art, the present invention has the following advantages:

The invention has simple and reasonable structure and high machining accuracy; the rotating shaft is clamped by a three-jaw chuck and cooperates with a thimble to ensure the coaxiality; the rotating shaft is driven to rotate by a motor, which overcomes the influence of gravity on chemical milling and ensures the machining accuracy ;The height of the liquid level in the box during processing is ensured by the floating ball valve, which prevents the influence of the insufficient solution in the box on the machining accuracy; through the linear guide, the distance between the slider and the three-jaw chuck can be adjusted to meet the The processing requirements of different sizes of rotating shafts; the timing controller controls the motor to stop, controls the movable cover to open, and discharges the solution in time, which ensures the accuracy of the processing time, reduces the labor intensity of workers, and improves the processing accuracy; the processing process The spontaneity of the machine and the automatic control of the reaction time minimize the influence of human factors on the machining; it solves the problems of insufficient machining accuracy and high rejection rate of the existing traditional milling machining.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of the connection of the thimble slider part of the present invention.

FIG. 3 is a schematic diagram of the connection of the three-jaw chuck part of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

In Figure 1-3, it includes 1-liquid storage tank, 2-motor box, 3-timing controller, 4-motor, 5-support base, 6-coupling, 7-connecting shaft, 8-rotary sealing ring , 9-three-jaw chuck, 10-thermostatic heater, 11-movable cover, 12-liquid outlet, 13-linear guide, 14-clamp, 15-guide slider, 16-thimble, 17-spacer Thermal layer, 18-rotating shaft, 19-floating ball valve, 20-removable top cover, 21-handle, 22-box, 23-connecting shaft hole, 24-liquid inlet, 25-pin, etc.

As shown in FIG. 1, the present invention is a chemical milling precision machining device, including a box body 22; a removable top cover 20 is installed on the top of the box body 22, the removable top cover 20 is made of thermal insulation materials, and the removable top cover A handle 21 is installed above the 20, a movable cover 11 is installed under the box, and a constant temperature heater 10 is installed under the movable cover 11. The movable cover 11 and the constant temperature heater 10 are connected together by bolts. A linear guide rail 13 is installed inside the box body, a guide rail slider 15 is installed above the linear guide rail 13, a clamp 14 is installed on the right side of the guide rail slider 15, and the left side of the guide rail slider 15 is connected with the ejector pin 16. The box body 22 There is a connecting shaft hole 24 under the side wall of the connecting shaft, the connecting shaft 7 is installed in the connecting shaft hole 24, there is a rotary sealing ring 8 between the connecting shaft 7 and the connecting shaft hole 24, and the right end of the connecting shaft 7 is connected with the three-jaw chuck 9, The three-jaw chuck 9 and the thimble 16 clamp the rotating shaft 18, the left end of the connecting shaft 7 is connected with the coupling 6, and the coupling 6 is connected with the motor 4, the motor 4 is installed in the motor box 2, and the outer side of the motor box 2 is installed There is a timing controller 3, a liquid storage tank 1 is installed above the motor box 2, and a liquid inlet pipe 24 is arranged between the liquid storage tank 1 and the box body 22, one end of the liquid inlet pipe 24 is connected to the liquid storage tank 1, and the other end extends into the box body In 22, the float valve 19 is installed at the end located in the box body 22, the motor box 2 and the lower part of the box body 22 are installed with four support seats 5, and the sides of the box body 22 are provided with heat insulation layers 17.

Specifically, one side wall of the box body 22 is provided with a liquid inlet pipe 24 and a connecting shaft hole 23 , and the other side wall is provided with a manual liquid discharge port 12 . A movable cover plate 11 and a heater 10 are provided, the liquid inlet pipe 24 is connected to the float valve 19, and a linear guide rail 13 is fixed between the two side walls. The ejector pin 16 is connected, the connecting shaft 18 is connected with the three-jaw chuck 9 , and the three-jaw chuck 9 and the ejector pin 16 clamp the rotating shaft 18 .

In the embodiment of the present invention, the inner side of the tank body 22 of the liquid inlet pipe 24 is connected to the float valve 19, and the float valve 19 adjusts the flow rate of the liquid inlet according to the liquid level in the tank body 22. When the height is lower than the set height, the liquid inlet pipe 24 is opened , the chemical solution in the liquid storage tank 1 flows into the tank to supplement the shortage of the solution in the tank. When the set height is reached, the liquid inlet pipe 24 is closed to control the amount of the solution in the tank.

In the embodiment of the present invention, the timing controller 3 controls the start and stop of the motor 4, and simultaneously controls the opening of the movable cover 11. When the milling time is set, the motor 4 automatically stops and the movable cover reaches the set time. Plate 11 opens, allowing the solution to flow out quickly, ensuring precise processing times.

In the embodiment of the present invention, the motor 4 is connected to the external power source, the main shaft of the motor 4 is connected to the coupling 6, the coupling 6 is connected to the connecting shaft 7, and the connecting shaft 7 is connected to the three-jaw chuck 9, so that the motor 4 drives the three-jaw chuck 9. The jaw chuck 9 rotates. During processing, the rotating shaft 18 is placed between the three-jaw chuck 9 and the thimble, and the motor 4 provides power for the rotation of the rotating shaft 18 for processing.

In the embodiment of the present invention, the timing controller 3 and the constant temperature heater 10 are all connected to an external power source.

As shown in FIG. 2, one side of the connecting shaft 7 is connected with the coupling 6, and the other side is connected with the three-jaw chuck 9. There is a rotary sealing ring 8 between the three-jaw chuck 9 and the box body 22; the seal The ring 8 not only ensures the free rotation of the connecting shaft 7, but also prevents the solution in the box 22 from flowing out.

As shown in FIG. 3, the ejector pin 16 is connected with the guide rail slider 15 through threads, and is positioned by a pin 25. The guide rail slider 15 is located on the linear guide rail 13. There is a clamp 14 on the linear guide rail 13 and the right side of the guide rail slider 15. The linear guide rail 13 is fixed on the side wall of the box body 22; the slider 15 can move on the guide rail 13 to adjust the distance between the ejector pin 16 and the three-jaw chuck 9 to meet the processing requirements of various shaft sizes.

In the embodiment of the present invention, the box body 22 and all the components in the box body 22 are protected by corrosion-resistant materials or corrosion-resistant coatings, and will not react with the solution in the box.

Working principle: Before use, adjust the concentration of the milling chemical solution according to the machining accuracy, accurately calculate the reaction time, and protect the non-machined part of the rotating shaft with a corrosion-resistant coating; when using, remove the removable top cover 20 or open the removable cover Plate 11, clamp one end of the rotating shaft 18 with the three-jaw chuck 9, and adjust the position of the guide rail slider 15 at the same time, so that the thimble 16 cooperates with the three-jaw chuck 9 to clamp the rotating shaft 18 to ensure the coaxiality, use the clamp 14 Fix the position of the dead rail slider 15, close the drain port 12, close the movable cover 11, turn on the constant temperature heater 10, pour the chemical solution into the box 22 to the calibrated position below the rotating shaft 18, and use the timing controller 3 to set Determine the reaction time, quickly pour the chemical solution into the tank 22 to the set position, and turn on the timer controller 3 to count down, start the motor 4, close the detachable top cover 20, and inject a sufficient amount of chemical solution into the liquid storage tank 1; After the reaction time is reached, the power is turned off, and the rotating shaft 18 is taken out to perform the next processing operation.

The invention ensures the accuracy of the processing time, reduces the labor intensity of workers, and improves the processing accuracy; the spontaneity of the processing process and the automatic control of the reaction time minimize the influence of human factors on the processing; The problems of insufficient milling machining accuracy and high rejection rate.

Claims (10)

1. The utility model provides a chemical milling precision finishing device which characterized in that: the device includes box (22), the top of box (22) is installed and is dismantled top cap (20) the below of box (22) is equipped with portable apron (11), constant temperature heating ware (10) are equipped with to the below of portable apron (11), the internally mounted of box (22) has pivot fixed knot to construct, and pivot fixed knot constructs and connects pivot rotating-axis structure, liquid reserve tank (1) is installed to box (22) one side, liquid reserve tank (1) with there is feed liquor pipe (24) between box (22), feed liquor pipe (24) one end intercommunication liquid reserve tank (1), the other end stretch into in box (22), it is located tip installation ball-cock assembly (19) in box (22).

2. The chemical milling precision machining apparatus according to claim 1, characterized in that: the utility model discloses a three-jaw chuck, pivot fixed knot constructs including linear guide (13), install guide rail slider (15) on linear guide (13), clamp ware (14) are installed to one side of guide rail slider (15), thimble (16) are connected to guide rail slider (15) opposite side, there is one connection shaft hole (24) lateral wall below of box (22), install connecting axle (7) in connection shaft hole (24), connecting axle (7) with it has rotation sealing washer (8) to connect between shaft hole (24), connecting axle (7) one end with three-jaw chuck (9) are connected.

3. The chemical milling precision machining apparatus according to claim 2, characterized in that: the rotating shaft rotating structure comprises a motor (4), an output shaft of the motor (4) is connected with one end of a connecting shaft (7), and the motor (4) is connected with a timing controller (3).

4. A chemical milling precision machining apparatus as claimed in claim 3, characterized in that: an output shaft of the motor (4) is connected with one end of the connecting shaft (7) through a coupler (6).

5. A chemical milling precision machining apparatus as claimed in claim 3, characterized in that: the motor (4) is arranged in the motor box (2).

6. The chemical milling precision machining apparatus according to claim 1, characterized in that: the detachable top cover (20) is made of heat preservation and insulation materials.

7. The chemical milling precision machining apparatus according to claim 1, characterized in that: the detachable top cover (20) is provided with a handle (21).

8. The chemical milling precision machining apparatus according to claim 1, characterized in that: the movable cover plate (11) and the constant temperature heater (10) are connected into a whole through bolts.

9. The chemical milling precision machining apparatus according to claim 5, characterized in that: and a support seat (5) is arranged below the motor box (2) and the box body (22).

10. The chemical milling precision machining apparatus according to claim 1, characterized in that: and heat insulation layers (17) are arranged on the side surfaces of the box body (22).

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