A milling device for machining automobile structural parts

Abstract

The present invention discloses a milling device for processing automobile structural parts. The milling device for processing automobile structural parts comprises a milling mechanism, a recovery mechanism and a numerical control system. The milling mechanism comprises a base, a workbench, an oil supply device, a mechanical arm, a milling motor and a milling cutter. The workbench is arranged above the base, the oil supply device and the mechanical arm are arranged above the front side of the workbench, the milling motor is arranged on a side of the mechanical arm close to the workbench, and the milling cutter is arranged below the milling motor. The recovery mechanism comprises a vacuum pump, a vacuum extraction pipeline, a negative pressure recovery cavity, a negative pressure recovery pipeline, a negative pressure recovery suction port and a milling cutter sheath. By arranging the recovery mechanism in cooperation with the milling mechanism, the device can effectively clear and recover the cutting waste fluid generated by the milling operation and improve the milling processing quality.

Description

Technical Field

[0001] The invention relates to the technical field of milling processing, in particular to a milling device for processing automobile structural parts. Background Art

[0002] The milling device is a kind of equipment used for metal processing. It removes the excess material on the workpiece to achieve the purpose of processing by coordinating the rotation of the tool and the feed movement. The milling device can process planes, curved surfaces and various special-shaped parts, and has high production efficiency. It is very suitable for processing automotive structural parts with various curved surfaces and special structures. Therefore, the milling device has become one of the most widely used metal processing equipment in various mechanical processing fields including automotive structural parts processing. However, when the milling device is performing milling operations, in order to improve the processing efficiency and processing quality, it is necessary to spray cutting fluid to achieve cooling, lubrication and other effects. However, the cutting fluid is easy to splash and flow around after mixing with the waste residue generated by milling, which may cause pollution to the factory environment and equipment. In addition, the oil, rust inhibitor, defoamer and other ingredients added to the cutting fluid often have a pungent odor. Some ingredients added to the cutting fluid are also toxic. The flowing and scattered cutting fluid may affect the work of the operator and even endanger his health. Therefore, the field of milling processing needs to propose a technical solution that can effectively treat the cutting waste fluid generated by milling operations. Summary of the invention

[0003] In view of the above-mentioned prior art, the present invention provides a milling device for machining automobile structural parts, and the main technical problem to be solved is how to effectively treat the cutting waste fluid generated by the milling operation.

[0004] To achieve the above purpose, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] A milling device for processing automobile structural parts includes a milling mechanism, a recovery mechanism and a numerical control system. The milling mechanism includes a base, a workbench, an oil supply device, a mechanical arm, a milling motor and a milling tool. The workbench is arranged above the base, the oil supply device and the mechanical arm are arranged above the front side of the workbench, the milling motor is arranged on a side of the mechanical arm close to the workbench, and the milling tool is arranged below the milling motor. The recovery mechanism includes a vacuum pump, a vacuum extraction pipeline, a negative pressure recovery cavity, a negative pressure recovery pipeline, a negative pressure recovery suction port and a milling cutter sheath. The vacuum pump is connected to the negative pressure recovery cavity through the vacuum extraction pipeline, the negative pressure recovery cavity is connected to the negative pressure recovery suction port through the negative pressure recovery pipeline, the milling cutter sheath is arranged on the outside of the milling tool, and the negative pressure recovery suction port is arranged on the inside of the milling cutter sheath.

[0006] Preferably, the oil supply device includes an oil storage chamber, an oil supply pipeline, an oil supply pump and an oil supply nozzle, the oil supply pipeline is connected to the oil supply pump, the oil storage chamber is connected to the oil supply nozzle through the oil supply pipeline, and the oil supply nozzle is arranged on both sides of the top of the milling tool.

[0007] Preferably, a separation recovery chamber is arranged inside the negative pressure recovery chamber, the separation recovery chamber is arranged as a rectangular structure with an open upper end, the bottom of the separation recovery chamber is arranged as a filter plate, and the separation recovery chamber is arranged directly below the connection point between the negative pressure recovery pipe and the negative pressure recovery chamber.

[0008] Preferably, a waste oil recovery pipeline is provided at the bottom of the separation and recovery chamber, and the waste oil recovery pipeline is provided with a waste oil pump.

[0009] Preferably, a filter element is provided inside the vacuum pipe.

[0010] Preferably, the milling cutter sheath includes a sheath shell and an arc-shaped rubber strip, the sheath shell is fixedly connected to the negative pressure recovery suction port, the sheath shell and the upper end of the negative pressure recovery suction port are connected with a sheath telescopic rod, the sheath shell is arranged to be a hollow hemispherical shape, the arc-shaped rubber strip is arranged to be an arc structure with the same curvature as the inner wall of the sheath shell, a plurality of the arc-shaped rubber strips are arranged at the lower end of the sheath shell, and a soft sponge strip is arranged at the bottom of the arc-shaped rubber strip.

[0011] Preferably, the outer side of the soft sponge strip is provided with an abrasive layer.

[0012] Preferably, an arc-shaped telescopic rod is provided at the connection between the arc-shaped rubber strip and the sheath shell, and the arc-shaped telescopic rod is arranged to have the same curvature as the inner wall of the sheath shell.

[0013] Preferably, a forward and reverse motor is provided at the connection between the arc-shaped rubber strip and the arc-shaped telescopic rod.

[0014] Preferably, soft hairs are provided on the side of the arc-shaped rubber strip close to the adjacent arc-shaped rubber strip.

[0015] The beneficial effect of the present invention is that: the present application sets the recovery mechanism in cooperation with the milling mechanism, and the cutting fluid sprayed by the oil supply device cools and lubricates the milling tool and the workpiece, and then mixes with the metal waste slag to form cutting waste fluid. The milling cutter sheath provided in the present application can prevent the cutting waste fluid from splashing and flowing, and enables the negative pressure recovery suction port to absorb the cutting waste fluid through the negative pressure recovery pipe into the recovery chamber for separation and recovery, thereby reducing the pollution of the factory environment and equipment by the cutting waste fluid, and reducing the contact between the cutting waste fluid and the operator. At the same time, the negative pressure recovery suction port can continuously clean the cutting waste fluid, so that the metal waste slag and the discarded cutting fluid are continuously removed, thereby avoiding affecting the milling operation and improving the milling quality.

[0016] In summary, the present application can effectively remove and recycle the cutting waste fluid generated by the milling operation and improve the milling processing quality by setting the recovery mechanism in cooperation with the milling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a milling device for machining automotive structural parts in an embodiment of the present application;

[0018] Figure 2 It is a cross-sectional view of the negative pressure recovery chamber and the oil storage chamber in the embodiment of the present application;

[0019] Figure 3 A cross-sectional view of a milling cutter sheath in an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the negative pressure recovery suction port in the embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the connection structure between the arc-shaped telescopic rod and the arc-shaped rubber strip in the embodiment of the present application;

[0022] Description of Figure Numbers:

[0023] 1. Milling mechanism; 2. Recovery mechanism; 3. CNC system;

[0024] 101. base; 102. workbench; 103. oil supply device; 104. mechanical arm; 105. milling motor; 106. milling tool; 107. oil storage chamber; 108. oil supply pipeline; 109. oil supply pump; 110. oil supply nozzle;

[0025] 201. Vacuum pump; 202. Vacuum extraction pipeline; 203. Negative pressure recovery chamber; 204. Negative pressure recovery pipeline; 205. Negative pressure recovery suction port; 206. Milling cutter sheath; 207. Annular dynamic seal ring; 208. Spiral steel wire; 209. Separation recovery chamber; 210. Filter plate; 211. Waste oil recovery pipeline; 212. Waste oil pump; 213. Filter element; 214. Sheath shell; 215. Arc rubber strip; 216. Sheath telescopic rod; 217. Soft sponge strip; 218. Abrasive layer; 219. Arc telescopic rod; 220. Forward and reverse motor; 221. Soft hair. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is related to a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0027] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] Example 1

[0029] See attached Figure 1-5The present application provides a milling device for machining automobile structural parts, including a milling mechanism 1, a recovery mechanism 2 and a numerical control system 3. The milling mechanism 1 includes a base 101, a workbench 102, an oil supply device 103, a mechanical arm 104, a milling motor 105 and a milling tool 106. The workbench 102 is arranged above the base 101, the oil supply device 103 and the mechanical arm 104 are arranged above the front side of the workbench 102, the milling motor 105 is arranged on the side of the mechanical arm 104 close to the workbench 102, and the milling tool 106 is arranged on the Below the milling motor 105, the recovery mechanism 2 includes a vacuum pump 201, a vacuum pipe 202, a negative pressure recovery chamber 203, a negative pressure recovery pipe 204, a negative pressure recovery suction port 205 and a milling cutter sheath 206. The vacuum pump 201 is connected to the negative pressure recovery chamber 203 through the vacuum pipe 202, and the negative pressure recovery chamber 203 is connected to the negative pressure recovery suction port 205 through the negative pressure recovery pipe 204. The milling cutter sheath 206 is arranged on the outside of the milling tool 106, and the negative pressure recovery suction port 205 is arranged on the inside of the milling cutter sheath 206. The vacuum suction port and the lower part of the milling motor 105 are set to be in sliding connection, and an annular dynamic sealing ring 207 is set at the sliding connection between the vacuum suction port and the lower part of the milling motor 105 for sliding sealing. The numerical control system 3 is connected with the workbench 102, the oil supply device 103, the mechanical arm 104, the milling motor 105 signal and the vacuum pump 201 signal. In this embodiment, the numerical control system 3 uses the 828D numerical control system 3 to control the device. At the same time, in this embodiment, the negative pressure recovery pipe 204 is set to be a wear-resistant hose with a spiral steel wire 208 in the middle. The device cooperates with the milling mechanism 1 by setting the recovery mechanism 2 The cutting fluid sprayed by the oil supply device 103 cools and lubricates the milling tool 106 and the workpiece, and then mixes with the metal waste slag to form cutting waste fluid. The milling cutter sheath 206 provided in the device can prevent the cutting waste fluid from splashing and flowing, and enables the negative pressure recovery suction port 205 to absorb the cutting waste fluid through the negative pressure recovery pipe 204 into the recovery chamber for separation and recovery, thereby reducing the pollution of the factory environment and equipment by the cutting waste fluid, and also reducing the contact between the cutting waste fluid and the operator. At the same time, the negative pressure recovery suction port 205 can continuously clean the cutting waste fluid, so that the metal waste slag and the discarded cutting fluid are continuously removed, avoiding affecting the milling operation and improving the milling quality. In summary, the device can effectively remove and recycle the cutting waste fluid generated by the milling operation and improve the milling quality by setting the recovery mechanism 2 to cooperate with the milling mechanism 1.

[0030] Specifically, the oil supply device 103 includes an oil storage chamber 107, an oil supply pipeline 108, an oil supply pump 109 and an oil supply nozzle 110. The oil supply pipeline 108 is connected to the oil supply pump 109, and the oil storage chamber is connected to the oil supply nozzle 110 through the oil supply pipeline 108. The oil supply nozzle 110 is arranged on both sides of the top of the milling tool 106. The oil supply pipe 108 passes through the outer shell of the robotic arm 104 and the lower end of the milling motor 105 to connect the oil storage chamber 107 with the oil supply nozzle 110. The device is provided with the oil supply device so that during milling operation, the oil supply pump 109 draws out the cutting fluid in the oil storage chamber 107 and sends it to the oil supply nozzle 110 for spraying through the oil supply pipe 108. The lower end of the oil supply nozzle 110 is arranged to face the bottom of the milling tool 106, so that the cutting fluid can be smoothly sprayed to the processing position of the milling tool 106, thereby improving the quality of the milling operation.

[0031] Specifically, a separation recovery chamber is provided inside the negative pressure recovery chamber 203, and the separation recovery chamber is provided as a rectangular parallelepiped structure with an open upper end. The bottom of the separation recovery chamber 209 is provided as a filter plate 210, and the separation recovery chamber 209 is provided directly below the connection between the negative pressure recovery pipe 204 and the negative pressure recovery chamber 203. By providing the separation recovery chamber, after the cutting waste fluid enters the separation recovery chamber 209 through the negative pressure recovery channel, the filter plate 210 filters and collects the solid metal waste residue in the cutting waste fluid, and discharges the liquid cutting waste fluid, so that the device can conveniently perform classified recovery and collection, and effectively improves the recovery efficiency.

[0032] Specifically, a waste oil recovery pipe 211 is provided at the bottom of the separation and recovery chamber, and a waste oil pump 212 is provided on the waste oil recovery pipe 211. By providing the waste oil recovery pipe 211 and the waste oil pump 212, the device allows the liquid cutting waste fluid to be continuously extracted to the subsequent process for centralized recovery and treatment, thereby preventing the cutting waste fluid from accumulating inside the negative pressure recovery chamber 203 and affecting the separation and recovery work of the separation and recovery chamber 209, thereby improving the reliability of the device.

[0033] Specifically, a filter element 213 is provided inside the vacuum pipe 202. By providing the filter element 213, the device can prevent the vacuum pump 201 from sucking in solid or liquid components in the cutting waste fluid to cause corrosion or blockage, thereby further improving the reliability of the device.

[0034] Example 2

[0035] Refer to the attached Figure 1-5The difference between this embodiment and embodiment 1 is that the milling cutter sheath 206 includes a sheath shell 214 and an arc-shaped rubber strip 215, the sheath shell 214 is fixedly connected to the negative pressure recovery suction port 205, the sheath shell 214 and the upper end of the negative pressure recovery suction port 205 are connected with a sheath telescopic rod 216, the sheath shell 214 is configured as a hollow hemispherical shape, the arc-shaped rubber strip 215 is configured as an arc structure with the same curvature as the inner wall of the sheath shell 214, a plurality of the arc-shaped rubber strips 215 are arranged at the lower end of the sheath shell 214, and a soft sponge strip 217 is arranged at the bottom of the arc-shaped rubber strip 215. The sheath telescopic rod 216 is connected to the CNC system 3 by signal. The device sets the sheath telescopic rod 216 to cooperate with the soft sponge strip 217 so that the soft sponge strip 217 can fit the surface of the workpiece of different shapes, shield the cutting waste liquid, and improve the suction effect of the negative pressure recovery suction port 205.

[0036] Specifically, the outer side of the soft sponge strip 217 is provided with an abrasive layer 218. By providing the abrasive layer 218, the device can grind the milled workpiece when the soft sponge strip 217 moves, remove the burrs generated by the milling operation, and improve the quality of the milling operation.

[0037] Specifically, an arc-shaped telescopic rod 219 is provided at the connection between the arc-shaped rubber strip 215 and the jacket shell 214, and the arc-shaped telescopic rod 219 is set to have the same curvature as the inner wall of the jacket shell 214. The arc-shaped telescopic rod 219 is connected to the CNC system 3 by signal. By setting a plurality of arc-shaped telescopic rods 219 connected to the arc-shaped rubber strip 215, the device enables the plurality of arc-shaped rubber strips 215 to be independently extended and retracted to adapt to various different workpieces, thereby enabling the soft sponge strip 217 to fit various different special-shaped workpieces, shielding the cutting waste liquid, further improving the suction effect of the negative pressure recovery suction port 205, and improving the grinding and deburring effect of the abrasive layer 218.

[0038] Specifically, a forward and reverse motor 220 is provided at the connection between the arc-shaped rubber strip 215 and the arc-shaped telescopic rod 219. The forward and reverse motor 220 is connected to the numerical control system 3 by signal. By providing the forward and reverse motor 220, the device enables a plurality of the arc-shaped rubber strips 215 to perform synchronous counterclockwise or clockwise small angle swings relative to the sheath shell 214, which can effectively improve the grinding effect of the abrasive layer 218 on the outer side of the soft sponge strip 217.

[0039] Specifically, soft hairs 221 are arranged on the side of the arc-shaped rubber strip 215 close to the adjacent arc-shaped rubber strip 215. The soft hairs 221 can shield the gaps between the arc-shaped rubber strips 215, prevent the cutting waste liquid from splashing out of the gaps, and improve the reliability of the device.

[0040] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A milling device for machining automobile structural parts, characterized in that: The invention comprises a milling mechanism, a recovery mechanism and a numerical control system, wherein the milling mechanism comprises a base, a workbench, an oil supply device, a mechanical arm, a milling motor and a milling cutter, wherein the workbench is arranged above the base, the oil supply device and the mechanical arm are arranged above the front side of the workbench, the milling motor is arranged on a side of the mechanical arm close to the workbench, and the milling cutter is arranged below the milling motor, the recovery mechanism comprises a vacuum pump, a vacuum extraction pipeline, a negative pressure recovery cavity, a negative pressure recovery pipeline, a negative pressure recovery suction port and a milling cutter sheath, the vacuum pump is connected to the negative pressure recovery cavity through the vacuum extraction pipeline, the negative pressure recovery cavity is connected to the negative pressure recovery suction port through the negative pressure recovery pipeline, and the milling cutter sheath is provided with a vacuum pump, a vacuum extraction pipeline, a negative pressure recovery cavity, a negative pressure recovery suction port and a milling cutter sheath. The tool sheath is arranged on the outside of the milling tool, the negative pressure recovery suction port is arranged on the inside of the milling cutter sheath, a separation recovery cavity is arranged inside the negative pressure recovery cavity, the separation recovery cavity is arranged as a rectangular structure with an open upper end, the bottom of the separation recovery cavity is arranged as a filter plate, the separation recovery cavity is arranged directly below the connection point between the negative pressure recovery pipe and the negative pressure recovery cavity, a waste oil recovery pipe is arranged at the bottom of the separation recovery cavity, the waste oil recovery pipe is arranged with a waste oil pump, the milling cutter sheath comprises a sheath shell and an arc-shaped rubber strip, an arc-shaped telescopic rod is arranged at the connection between the arc-shaped rubber strip and the sheath shell, and the arc-shaped telescopic rod is arranged to have the same curvature as the inner wall of the sheath shell.

2. A milling device for machining automotive structural parts according to claim 1, characterized in that: The oil supply device includes an oil storage chamber, an oil supply pipeline, an oil supply pump and an oil supply nozzle. The oil supply pipeline is connected to the oil supply pump, and the oil storage chamber is connected to the oil supply nozzle through the oil supply pipeline. The oil supply nozzle is arranged on both sides of the top of the milling tool.

3. A milling device for machining automotive structural parts according to claim 1, characterized in that: A filter element is arranged inside the vacuum pipe.

4. A milling device for machining automotive structural parts according to claim 1, characterized in that: The sheath shell is fixedly connected to the negative pressure recovery suction port, and a sheath telescopic rod is connected to the upper end of the sheath shell and the negative pressure recovery suction port. The sheath shell is arranged to be a hollow hemispherical shape, and the arc-shaped rubber strip is arranged to be an arc-shaped structure with the same curvature as the inner wall of the sheath shell. Several of the arc-shaped rubber strips are arranged at the lower end of the sheath shell, and a soft sponge strip is arranged at the bottom of the arc-shaped rubber strip.

5. A milling device for machining automotive structural parts according to claim 4, characterized in that: The outer side of the soft sponge strip is provided with an abrasive layer.

6. A milling device for machining automotive structural parts according to claim 5, characterized in that: A forward and reverse motor is arranged at the connection between the arc-shaped rubber strip and the arc-shaped telescopic rod.

7. A milling device for machining automotive structural parts according to claim 6, characterized in that: The side surfaces of the arc-shaped rubber strips close to the adjacent arc-shaped rubber strips are provided with soft hairs.

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