Device for removing burrs in pump body of fuel engine

Abstract

The utility model discloses a device for removing burrs in a pump body of a fuel engine, which comprises electrolysis electric control equipment, an electrode clamp communicated with the electrolysis electric control equipment, and a plate frame filter used for filtering and circularly providing electrolyte, and the plate frame filter is communicated with the electrode clamp; the electrolysis electric control equipment comprises a bearing table and a power supply mechanism used for providing current, and the positive electrode and the negative electrode of the power supply mechanism are electrically connected with the bearing table or the electrode clamp. A recovery opening is formed in the bearing table, electrolyte flows to the first recovery pool through the recovery opening, the first recovery pool is communicated with the plate-and-frame filter through a suction pipeline and a suction pump, and the plate-and-frame filter is communicated with the second recovery pool through an electrolyte return pipe. According to the device for removing the burrs in the fuel oil machine pump body, the current pulse is formed in the workpiece to be cleaned, the medium flowing at a high speed is cooperated, the burrs at the intersecting part with poor accessibility in a metal part are better removed, and the device is reliable and efficient.

Description

Technical Field

[0001] The utility model relates to a jig, in particular to a device for removing burrs inside a fuel engine pump body. Background Art

[0002] As an important spare part of engineering vehicles, the inner cavity structure of the fuel engine pump body is complex, with various oil channels running through. The product has high requirements for the surface quality of the inner cavity, and it is difficult to remove burrs at the cross-hole openings after fine machining.

[0003] Electrolytic machining, also known as electrochemical machining (ECM), is a machining method in which a metal workpiece undergoes anodic dissolution in an electrolyte. There are already serialized products of electrochemical deburring machines, which have been widely used in many industries such as automotive engines, general engineering machinery, aerospace, pneumatic and hydraulic systems. It is an important equipment with a large production batch and a wide application field in electrochemical machining machine tools. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of great difficulty, low output efficiency and long manual input time in removing burrs in the prior art, and to provide a device for removing burrs inside a fuel engine pump body.

[0005] In order to achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] A device for removing burrs inside a fuel engine pump body, characterized in that it includes an electrolytic electric control device, an electrode fixture communicated with the electrolytic electric control device, and a plate-frame filter for filtering and circulating the electrolyte supply, and the plate-frame filter is communicated with the electrode fixture;

[0007] The electrolytic electric control device includes a carrier table and a power supply mechanism for providing current. The positive and negative poles of the power supply mechanism are respectively electrically connected to the carrier table or the electrode fixture; a recovery port is provided on the carrier table, and the electrolyte flows to a first recovery pool through the recovery port. The first recovery pool is communicated with the plate-frame filter through a suction pipeline and a suction pump, and the plate-frame filter is communicated with a second recovery pool through an electrolyte return pipe.

[0008] Among them, the electrode fixture includes a top surface pressing plate located above the carrier table and a circumferential positioning clamping plate located on the side surface of the carrier table. Each circumferential positioning clamping plate is provided with an electrode pin opposite to the surface hole of the workpiece to be cleaned. A hollow electrolyte flow channel is provided in the middle of the electrode pin, and an insulating sleeve is sleeved outside the electrode pin; the tail of the electrode pin is connected to a liquid supply pipe, and the other end of the liquid supply pipe is connected to the second recovery tank; the electrode fixture further includes a driving mechanism for driving the circumferential positioning clamping plate and the top surface pressing plate to approach or move away from the workpiece to be cleaned.

[0009] Among them, the plate and frame filter press includes a filter plate group and a sewage holding tank located below the filter plate assembly. The filter plate group is communicated with the suction pump through a suction pipeline.

[0010] Among them, the filter plate group includes a horizontally arranged guide rail. One end of the guide rail is provided with a vertical fixing plate. A plurality of filter plates are vertically arranged on the guide rail. Each filter plate includes a frame-shaped body, a filter cloth laid on the frame-shaped body, and an outer frame that cooperates with the frame-shaped body to fix the filter cloth; the outer frame is slidably arranged on the guide rail; the other end of the guide rail is provided with a pressing mechanism for concentrating the filter plate assembly to the side of the fixing plate to form a filtering chamber.

[0011] Among them, the pressing mechanism includes a horizontally arranged air pressure pump. The free end of the telescopic rod of the air pressure pump is provided with a pressing plate, and the pressing plate is slidably matched with the guide rail.

[0012] Among them, a pressure gauge is provided on the suction pipeline.

[0013] Among them, an air drying channel is further provided on the fixing plate. The air drying channel is communicated with an external air drying device, and an air valve is provided on the air drying channel; the external air drying device is electrically connected to the electrolysis electric control device.

[0014] Among them, bottom positioning columns corresponding to the pores on the bottom surface of the workpiece to be cleaned are provided on the carrier table.

[0015] Advantages of the above technical solution: The internal burr removal device of the fuel engine pump body of the present utility model can better remove the burrs at the intersecting parts inside the metal parts with poor accessibility by forming current pulses inside the workpiece to be cleaned and cooperating with the high-speed flowing medium. There is no mechanical force during the cleaning process of the workpiece, and the processing has the advantages of reliability and high efficiency. It is easier to realize automatic or semi-automatic configuration, suitable for removing burrs of high-hardness and high-toughness metal parts, and can also perform limited processing on specific parts of the workpiece. In particular, it can be widely applied to many industries such as automotive parts, fuel injectors and fuel pumps, aerospace, and construction machinery. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the workpiece to be cleaned.

[0017] Figure 2 It is a schematic cross-sectional structural diagram of the workpiece to be cleaned.

[0018] Figure 3 It is a schematic structural diagram of the electrode fixture of the burr removal device inside the fuel engine pump body in the preferred embodiment of the present invention.

[0019] Figure 4 It is a schematic cross-sectional structural diagram of the electrode pin of the electrode fixture.

[0020] Figure 5 It is a schematic structural diagram of the plate-frame filter of the burr removal device inside the fuel engine pump body in the preferred embodiment of the present invention. Detailed implementation manners

[0021] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the described embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0023] Figure 1 and Figure 2 As shown, the surface of the workpiece 100 to be cleaned has many holes with different depths, and intersecting channels are formed inside the workpiece. As Figures 3 - 5 shown, the burr removal device inside the fuel engine pump body of this embodiment includes an electrolysis electric control device (not shown in the figure), an electrode fixture connected to the electrolysis electric control device, and a plate-frame filter for filtering and circulating the electrolyte supply, and the plate-frame filter is connected to the electrode fixture.

[0024] Specifically, the electrolysis electric control device includes a carrier table 101 and a power supply mechanism (not shown in the figure) for supplying current to the electrode fixture. The negative electrode of the power supply mechanism is connected to the electrode fixture, and the positive electrode is electrically connected to the carrier table 101. When the workpiece is clamped by the carrier table and the motor fixture, a current is formed on the workpiece. The top surface of the carrier table 101 is provided with positioning posts 1011 adapted to the bottom pores of the workpiece 100 to be cleaned. The carrier table 101 is provided with a recovery port 102. The electrolyte that has completed the pore cleaning flows through the recovery port 102 into a first recovery tank (not shown in the figure) for recovery. The first recovery tank is communicated with the plate-and-frame filter through a suction pipeline and a suction pump. The plate-and-frame filter is also communicated with a second recovery tank through an electrolyte return pipe.

[0025] The electrode fixture includes a top surface pressing plate 11 located above the carrier table 101 and a circumferential positioning clamping plate 12 located on the side surface of the carrier table 101. Each circumferential positioning clamping plate 12 is provided with an electrode pin 121 opposite to the surface holes of the workpiece to be cleaned. The middle of the electrode pin 121 is provided with a hollow electrolyte flow channel 1211. An insulating sleeve 1212 is sleeved outside the electrode pin 121. The tail of the electrode pin 121 is connected to a liquid supply pipe (not shown in the figure), and the other end of the liquid supply pipe is connected to a second recovery tank (not shown in the figure) for storing the purified electrolyte. The electrode fixture further includes a driving mechanism 13 for driving the circumferential positioning clamping plate 12 and the top surface pressing plate 11 to approach or move away from the workpiece to be cleaned. The driving mechanism 13 is controlled by the above-mentioned electrolysis electric control device.

[0026] As Figure 5 shown, the plate-and-frame filter includes a filter plate assembly 21. The filter plate assembly 21 is communicated with a suction pump 23 through a suction pipeline 22 and is communicated with a second recovery tank through an electrolyte return pipe (not shown in the figure). In addition, the plate-and-frame filter further includes a sewage holding tank 24 located below the filter plate assembly 21. During cyclic filtration, the suction pump 23 sucks the waste liquid in the first recovery tank into the filter plate assembly through the suction pipeline 22 for filtration, and then returns it to the second recovery tank through the electrolyte return pipe and is recycled by the electrode pin 121 communicated with the second recovery tank.

[0027] Specifically, the filter plate assembly 21 includes a horizontally arranged guide rail 211. One end of the guide rail 211 is provided with a vertical fixing plate 212. A plurality of filter plates 213 are vertically arranged on the guide rail 211. Each filter plate 213 includes a frame-shaped body, a filter cloth laid on the frame-shaped body, and an outer frame 2131 that cooperates with the frame-shaped body to fix the filter cloth. The outer frame 2131 is slidably arranged on the guide rail 211. At the other end of the guide rail 211, there is a pressing mechanism 214 for concentrating the filter plate assembly 21 to the side of the fixing plate 212 to form a relatively enclosed chamber for filtration. A drying channel is also provided on the fixing plate 212. The drying channel is communicated with an external drying device (not shown in the figure). A gas valve 2121 for controlling the on / off of the drying channel is provided on the drying channel. The external drying device is electrically connected to the electrolysis electric control device.

[0028] The pressing mechanism 214 includes a horizontally arranged air pressure pump 2141. The free end of the telescopic rod of the air pressure pump 2141 is provided with a pressing plate 2142. The pressing plate 2142 is slidably matched with the guide rail 211. In addition, a pressure gauge 221 is provided on the suction pipeline 22. Under the action of the air pressure pump 2141, the filter plate assembly is concentrated to the side of the fixing plate 212, and a filtration chamber is integrally formed. The recycled electrolyte enters the above chamber along the suction pipeline 22 under the action of the suction pump 23 and flows through layers of filter cloths to achieve the purpose of purifying the electrolyte. When the pressure gauge 221 shows that the feeding pressure (at the recycled electrolyte) of the plate and frame filter reaches 8-10 kg, it indicates that the product to be filtered needs to be cleaned. Before cleaning, first turn off the suction pump 23 to stop sucking the electrolyte from the first recovery tank, and then open the gas valve 2121 to ventilate and drain the above chamber of the plate and frame filter for about 40-60 minutes to drain the electrolyte in the plate and frame filter. After there is no water flow sound in the liquid pipe, turn off the external drying device. At this time, loosen the filter plate assembly of the chamber, remove the filter plates from the guide rail one by one, and then the filter cloth can be rinsed with high-pressure water. The residues of the filtration are recovered into the sewage tank 24. After cleaning, reassemble the filter plates 213 and put them back on the guide rail 211 to carry out subsequent filtration operations.

[0029] The deburring device for the interior of the fuel engine pump body in this embodiment utilizes the principle of electrolytic machining. The electrode fixture is connected to the negative pole of the power supply mechanism, and the carrier table is connected to the positive pole of the power supply mechanism. During machining, first, electrolyte is added into the pores of the workpiece to be cleaned, and then the pulsed power supply is turned on. At this time, an oxidation reaction will occur on the surface of the positive pole of the workpiece, while a reduction reaction will occur on the cathode of the electrode fixture (mainly the electrode pin). The electrolytic products and heat generated on the workpiece to be cleaned, as well as sundries such as burrs in the holes, are simultaneously carried away by the high-speed flowing electrolyte. It is particularly suitable for removing burrs at the intersecting parts inside metal parts with poor accessibility. The machining process has the advantages of reliability and high efficiency. This processing solution has no mechanical force on the workpiece to be machined, and it is easier to achieve automated or semi-automated configuration. It is suitable for removing burrs from high-hardness and high-toughness metal parts, and can also perform limited machining on specific parts of the workpiece. In particular, it can be widely applied to many industries such as automotive parts, fuel injectors and fuel pumps, aerospace, and construction machinery.

[0030] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A device for removing burrs inside a fuel engine pump body, characterized in that, It includes an electrolysis electric control device, an electrode fixture connected to the electrolysis electric control device, and a plate-frame filter for filtering and circulating the electrolyte supply. The plate-frame filter is connected to the electrode fixture. The electrolysis electric control device includes a carrying platform and a power supply mechanism for providing current. The positive and negative electrodes of the power supply mechanism are electrically connected to the carrying platform or the electrode fixture respectively. A recovery port is provided on the carrying platform, and the electrolyte flows to the first recovery tank through the recovery port. The first recovery tank is connected to the plate-frame filter through a suction pipeline and a suction pump. The plate-frame filter is connected to the second recovery tank through an electrolyte return pipe.

2. The internal burr removal device for a fuel engine pump body according to claim 1, wherein: The electrode fixture includes a top surface pressing plate located above the carrying platform and a circumferential positioning clamping plate located on the side of the carrying platform. Each circumferential positioning clamping plate is provided with an electrode pin opposite to the surface hole of the workpiece to be cleaned. A hollow electrolyte flow channel is provided in the middle of the electrode pin, and an insulating sleeve is sleeved outside the electrode pin. The tail of the electrode pin is connected to a liquid supply pipe, and the other end of the liquid supply pipe is connected to the second recovery tank. The electrode fixture further includes a driving mechanism for driving the circumferential positioning clamping plate and the top surface pressing plate to approach or move away from the workpiece to be cleaned.

3. The internal burr removal device for a fuel engine pump body according to claim 2, characterized in that: The plate-frame filter includes a filter plate group and a sewage holding tank located below the filter plate group. The filter plate group is connected to the suction pump through a suction pipeline.

4. The internal burr removal device for a fuel engine pump body according to claim 3, wherein: The filter plate group includes a horizontally arranged guide rail. One end of the guide rail is provided with a vertical fixing plate. A plurality of filter plates are vertically arranged on the guide rail. Each filter plate includes a frame-shaped body, a filter cloth laid on the frame-shaped body, and an outer frame for cooperating with the frame-shaped body to fix the filter cloth. The outer frame is slidably arranged on the guide rail. The other end of the guide rail is provided with a pressing mechanism for concentrating the filter plate group to the side of the fixing plate to form a filtering chamber.

5. The internal burr removal device for a fuel engine pump body according to claim 4, characterized in that: The pressing mechanism includes a horizontally arranged air pressure pump. The free end of the telescopic rod of the air pressure pump is provided with a pressing plate, and the pressing plate is slidably matched with the guide rail.

6. The internal burr removal device for a fuel engine pump body according to claim 5, characterized in that: A pressure gauge is provided on the suction pipeline.

7. The internal burr removal device for a fuel engine pump body according to claim 6, wherein: An air drying channel is further provided on the fixing plate. The air drying channel is connected to an external air drying device, and an air valve is provided on the air drying channel. The external air drying device is electrically connected to the electrolysis electric control device.

8. The internal burr removal device for a fuel engine pump body according to claim 7, characterized in that: Bottom positioning columns corresponding to the pores on the bottom surface of the workpiece to be cleaned are provided on the carrying platform.

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