CN117182781A - Inner protection gear grinding machine convenient for oil mist separation - Google Patents

Abstract

The invention discloses an inner protection gear grinding machine convenient for oil mist separation, which comprises a machine tool, an air flow recovery device, an oil guide assembly and an oil return groove, wherein the oil mist separator and a first air outlet for air to enter are separated from two sides of a processing area, so that oil mist in the whole processing area can be rapidly pumped out, and cooling oil collected by pumping out can be reused. The specific positions of the first air outlet and the first air inlet of the oil mist separator can be flexibly set according to actual oil mist diffusion rules or conditions so as to ensure that oil mist is pumped and collected rapidly. And for the oil drops condensed on the surface of the cutter box or the workpiece box, the oil drops can be collected by arranging the oil guide groove and discharged into the oil return groove from the rear end of the processing area, so that the influence of the oil drops on the operation of workers due to the dripping of the front end is avoided. The oil return groove is arranged at the bottom of the processing area, so that oil mist and dropped oil drops in the whole processing area can be collected, and subsequent filtering and recycling are facilitated.

Description

Inner protection gear grinding machine convenient for oil mist separation

Technical Field

The invention relates to the technical field of numerical control machine tools, in particular to an inner protection gear grinding machine convenient for oil mist separation.

Background

A gear grinding machine tool for numerical control spiral bevel gear processing adopts cooling oil to spray the emery wheel to cool off the heat that the grinding process produced, plays simultaneously to gear grinding processing lubrication's effect and the clearance effect of emery wheel. During operation, the entire machining space of the numerical control machine tool generates a large amount of oil mist due to high-speed rotation of a grinding head (typically, a grinding wheel), high pressure of cooling oil, and the like. If the oil mist is dissipated into the air after the machine tool protective door is opened, pollution is caused to a production workshop, and if the oil mist is condensed on a spindle box of the machine tool, the oil mist is easy to drop continuously, so that the operation of workers is influenced. Thus, a rapid treatment of the generated oil mist is required.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the internal protection gear grinding machine which is convenient for oil mist separation, can quickly recover the diffused oil mist in the machine tool for recycling, and can prevent the oil dripping of the spindle box.

The internal protection gear grinding machine convenient for oil mist separation comprises a machine tool, an air flow recovery device, an oil guide assembly and an oil return groove, wherein the machine tool is provided with a workpiece box, a cutter box and a protection door, the workpiece box is provided with a workpiece spindle, the cutter box is provided with a cutter spindle, and the protection door is used for isolating an openable and closable processing area; the air flow recovery device comprises an air inlet assembly and an oil mist separator, wherein the air inlet assembly and the oil mist separator are positioned on two opposite sides of the processing area, the air inlet assembly is provided with a first air outlet communicated with the processing area, and the oil mist separator is provided with a first air inlet communicated with the processing area; the oil guide assembly is arranged on the cutter box and/or the workpiece box, and comprises an oil guide groove which extends from the front end of the processing area to the rear end of the processing area and is used for guiding and discharging oil to the rear end of the processing area; the oil return groove is arranged at the bottom of the processing area and is used for receiving oil drops.

The internal protection gear grinding machine convenient for oil mist separation has at least the following beneficial effects:

the inner protection gear grinding machine convenient for oil mist separation, which is arranged by adopting the structure, is separated from the two sides of the processing area through the oil mist separator and the first air outlet for air to enter, so that oil mist of the whole processing area can be rapidly pumped away, and the collected cooling oil can be reused. The specific positions of the first air outlet and the first air inlet of the oil mist separator can be flexibly set according to actual oil mist diffusion rules or conditions so as to ensure that oil mist is pumped and collected rapidly. And for the oil drops condensed on the surface of the cutter box or the workpiece box, the oil drops can be collected by arranging the oil guide groove and discharged into the oil return groove from the rear end of the processing area, so that the influence of the oil drops on the operation of workers due to the dripping of the front end is avoided. The oil return groove is arranged at the bottom of the processing area, so that oil mist and dropped oil drops in the whole processing area can be collected, and subsequent filtering and recycling are facilitated.

According to some embodiments of the invention, the air inlet assembly comprises a right protection plate, the right protection plate is located on the right side of the processing area, the right protection plate is provided with an air inlet channel and a second air inlet, the second air inlet is communicated with the upper end of the air inlet channel and used for conducting the air inlet channel with the outside, and the first air outlet is arranged on the right protection plate and is communicated with the lower end of the air inlet channel.

According to some embodiments of the invention, the airflow recycling device further comprises a flow guiding assembly, the flow guiding assembly comprises a first flow guiding plate and a second flow guiding plate, the first flow guiding plate is connected to the right protection plate, the first flow guiding plate covers the first air outlet and forms an air outlet cavity with the right protection plate, the lower end of the air outlet cavity is communicated with the first air outlet cavity, the second flow guiding plate is located below the air outlet cavity, one end of the second flow guiding plate is connected with the right protection plate, and the other end of the second flow guiding plate extends downwards in an inclined mode to be above the oil return groove.

According to some embodiments of the invention, the first baffle has a guiding slope extending obliquely downward from an upper end of the first baffle to cover the first air outlet.

According to some embodiments of the invention, the machine tool is provided with a left protection plate, the left protection plate is located at the left side of the machining area, the oil mist separator is connected to the upper end of the machining area, and the flow guiding assembly further comprises a third flow guiding plate, one end of the third flow guiding plate is connected to the lower end of the left protection plate, and the other end of the third flow guiding plate extends downwards in an inclined mode to be above the oil return groove.

According to some embodiments of the invention, the machine tool is further provided with a scraping assembly provided with a scraping plate, the scraping plate is attached to the tool box and/or the workpiece box and used for cleaning the surfaces of the tool box and/or the workpiece box when the tool box and/or the workpiece box move.

According to some embodiments of the invention, the scraping assembly is provided with an inner protective cover, and the scraping plate is arranged at the opening end of the accommodating cavity of the inner protective cover;

the inner protective cover is arranged at one end of the tool box, which is far away from the workpiece box, and the accommodating cavity is used for the tool box to enter and exit;

and/or the inner protective cover is arranged at one end of the workpiece box, which is far away from the tool box, and the accommodating cavity is used for the workpiece box to enter and exit.

According to some embodiments of the invention, the tool box is movably arranged above the workpiece box, the inner protective cover is arranged above the tool box, and the scraping plate is arranged at the lower end of the inner protective cover and extends downwards along the direction approaching to the tool box to be attached to the tool box.

According to some embodiments of the invention, the oil guiding groove comprises a front oil guiding groove and a side oil guiding groove, wherein the front oil guiding groove is arranged at the front side of the lower end position of the cutter box, the front oil guiding groove extends downwards in a tilting mode from the middle to the two ends, the side oil guiding groove is arranged at two sides of the lower end position of the cutter box, the front end of the side oil guiding groove is butted with the front oil guiding groove, and the rear end of the side oil guiding groove extends downwards in a tilting mode.

According to some embodiments of the invention, the oil guide assembly further comprises an oil guide swash plate;

the oil guide inclined plate is arranged on at least one side of the cutter box, one end of the oil guide inclined plate is connected with the cutter box, and the other end of the oil guide inclined plate extends in a downward inclined mode along the direction away from the cutter box;

and/or the oil guide inclined plate is arranged on at least one side of the workpiece box, one end of the oil guide inclined plate is connected with the workpiece box, and the other end of the oil guide inclined plate extends in a downward inclined manner along the direction away from the workpiece box.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an overall layout of the present invention;

FIG. 2 is an enlarged schematic view of the area A in FIG. 1;

FIG. 3 is a schematic view of a position arrangement of a flow guide groove and a scraping plate;

FIG. 4 is a schematic view of an arrangement of the inner shield;

FIG. 5 is a schematic view of an arrangement of a flow guide groove and a flow guide sloping plate;

FIG. 6 is a schematic view of a position of the guard door;

fig. 7 is a schematic view of the overall structure of the machine tool.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 7, an inner guard gear grinding machine for facilitating oil mist separation according to an embodiment of the present invention includes a machine tool 100, an air flow recovery device, an oil guide assembly, and an oil return groove 406. The machine tool 100 is provided with a workpiece box 300, a tool box 200 and a protective door 103, wherein the workpiece box 300 is provided with a workpiece spindle, the tool box 200 is provided with a tool spindle, the tool spindle is used for mounting a grinding head, and the workpiece spindle is correspondingly provided with a gear. The workpiece box 300 and the tool box 200 are provided on the machine tool 100 so as to be movable and adjustable along three axes X, Y, Z, and at least one of the workpiece box 300 and the tool box 200 is swingable, and a six-axis machining system is formed by combining the workpiece spindle and the tool spindle. It can be understood that the specific three-dimensional moving modes of the workpiece box 300 and the tool box 200 can be flexibly set according to actual situations, for example, the workpiece box 300 moves back and forth in the X direction, the tool box 200 moves left and right and moves up and down in the Y-Z direction, and for example, the workpiece box 300 swings, and the tool box 200 moves and adjusts in the X, Y, Z directions. The protective door 103 is used for isolating a machining area which can be opened and closed, so that the machining area is closed when gear grinding machining is performed, and the machining area is opened when machining is completed, so that a worker can replace gears or maintain and debug the gears. The air flow recovery device comprises an air inlet assembly and an oil mist separator 400, wherein the air inlet assembly and the oil mist separator 400 are separated on two opposite sides of a processing area, and the air inlet assembly is provided with a first air outlet 4013 communicated with the processing area and used for realizing air inlet. The oil mist separator 400 has a first inlet 4011 communicating with the processing region for effecting suction of oil mist in the processing region. According to the invention, the oil mist separator 400 and the air inlet are respectively arranged at two sides of the processing area, so that when the oil mist separator 400 works, the air inlet at the other side of the processing area is convenient, and the oil mist collecting effect of the oil mist separator 400 on the whole processing area is ensured. The first air outlet 4013 may be configured according to the distribution of the oil mist during processing, so as to ensure a good air flow conveying direction and avoid the oil mist overflowing from the first air outlet 4013 to the outside of the machine tool 100. The oil guide assembly may be provided on either the tool box 200, the workpiece box 300, or both the tool box 200 and the workpiece box 300. The oil guiding assembly comprises an oil guiding groove 408, wherein the oil guiding groove 408 extends from the front end of the processing area to the rear end of the processing area and is used for guiding and discharging oil to the rear end of the processing area, so that oil drops are prevented from affecting the operation of workers. An oil return groove 406 is provided at the bottom of the processing region for receiving oil droplets.

The inner protection gear grinding machine which is convenient for oil mist separation and is arranged by adopting the structure can be used for rapidly pumping oil mist in the whole processing area through the cooperation of the oil mist separator 400 and the first air outlet 4013 which is opposite to the oil mist separator and is arranged on the other side of the processing area, and the collected cooling oil can be reused. The specific positions of the first air outlet 4013 and the first air inlet 4011 can be flexibly set according to actual oil mist diffusion rules or conditions, so as to ensure that oil mist is pumped and collected rapidly. For example, the oil mist collecting device is arranged at the left side and the right side of the oil mist collecting area, so that oil mist in the oil mist collecting area is rapidly pumped out. For example, the first air outlet 4013 and the first air inlet 4011 are staggered up and down, so that the air flow path irradiates the whole processing area, and the effect of sucking and recovering oil mist in the whole processing area is improved. And for the oil drops condensed on the surface of the tool box 200 or the workpiece box 300, the oil drops can be collected through the oil guide groove 408 and discharged into the oil return groove 406 from the rear end of the processing area, so that the influence of the oil drops on the operation of workers due to the dripping of the oil drops at the front end is avoided, and the operations of workpiece replacement, grinding head maintenance and the like are facilitated for the workers. The oil return groove 406 is arranged at the bottom of the processing area, and can collect oil mist and dropped oil drops in the whole processing area, so that the subsequent filtering and recycling are facilitated.

Referring to fig. 1, in some embodiments of the present invention, a machine tool 100 is provided with a left guard plate 101, an air intake assembly is provided with a right guard plate 102, the left guard plate 101 and the right guard plate 102 are located at left and right sides of a machining area, and a guard door 103 is provided between the left guard plate 101 and the right guard plate 102 to jointly enclose the machining area. The right protection plate 102 is provided with an air inlet channel 404 and a second air inlet 4012, the whole air inlet channel 404 is distributed along the vertical direction, the second air inlet 4012 is communicated with the upper end of the air inlet channel 404 and used for realizing the conduction between the air inlet channel 404 and the outside, and the first air outlet 4013 is arranged on the right protection plate 102 and is communicated with the lower end of the air inlet channel 404. The oil mist separator 400 is located at the left upper end of the machine tool 100, and a first air inlet 4011 is provided in communication with the left upper end of the machining area. Because the oil mist is generated as a result of multiple actions such as injection pressure of the cooling oil, high-speed rotation of the grinding head and the like, the oil mist has inertia sputtered to the periphery instead of free diffusion under the action of the reaction force generated by the cooling oil striking the grinding head and tangential action generated by the rotation of the grinding head, in this embodiment, the air inlet channel 404 is utilized to realize air inlet, the air flow direction enters the air inlet channel 404 from the second air inlet 4012, enters the processing area after moving downwards through the first air outlet 4013, and the oil mist cannot directly pass out of the machine tool 100 from the first air outlet 4013 under the action of inertia because the first air outlet 4013 and the second air inlet 4012 are not aligned. Meanwhile, the oil mist itself is a fine liquid drop, and it is difficult to overflow upward from the second intake 4012 after diffusing into the intake passage 404 under the action of gravity. Therefore, by adopting the air intake mode provided in this embodiment, oil mist can be effectively prevented from overflowing from the air intake passage 404.

It is understood that the specific path and shape of the air inlet channel 404 may be flexibly designed according to the size and form of the right protection plate 102, and may be configured as a vertical channel or a channel with an S-shaped path.

Referring to fig. 1 and 2, the air intake passages 404 are distributed in a vertical direction with upper and lower ends thereof extending to near the upper and lower ends of the right guard plate 102. And the width of the air inlet channel 404 is suitably reduced so as to form a vertically distributed and elongated air inlet pattern. As can be seen from the analysis of the foregoing embodiments, due to the initial inertia and gravity of the oil mist, the oil mist cannot overflow through the air inlet channel 404 when the air inlet channel 404 adopts a vertically elongated structure. Particularly, in the case where the first air outlet 4013 is located at the lower end position of the right protection plate 102, the angle at which the oil mist enters the air inlet passage 404 from the first air outlet 4013 by inertia and gravity is substantially downward, and it is difficult to overflow upward. Meanwhile, the air inlet channel 404 adopts a vertical channel form, and compared with an S-shaped channel or other forms, the air inlet channel can ensure that oil mist is placed and overflows, and meanwhile the air inlet efficiency can be considered.

It should be noted that, on the basis of the above structure, a supporting structure, such as a supporting rib plate, a supporting column, or the like, may be further disposed in the air intake channel 404, which may be used to enhance the structural strength of the air intake channel 404 and also may be used to block oil in the air intake channel 404. In order to facilitate the discharge of oil in the intake passage 404, an inclined structure may be provided at the position of the first air outlet 4013 to guide the rapid discharge of oil. In order to improve the air intake efficiency, a plurality of first air outlets 4013 may be provided in the vertical direction.

Referring to fig. 2, in some embodiments of the present invention, the airflow recycling apparatus further includes a flow guiding assembly, where the flow guiding assembly includes a first flow guiding plate 403 and a second flow guiding plate 402, the first flow guiding plate 403 is mounted on the right protection plate 102, and the first flow guiding plate 403 covers the first air outlet 4013 and forms an air outlet chamber with the right protection plate 102, where a lower end is in communication with the air outlet chamber. In this way, it is possible to prevent oil mist generated during processing from directly entering the first air outlet 4013. After coming out from the first air outlet 4013, the entering air enters the processing area from the bottom of the air outlet chamber, so that oil mist is effectively prevented from overflowing. The second baffle 402 is located below the air outlet chamber, one end of the second baffle 402 is connected to the right protection plate 102, and the other end extends downward and obliquely to above the oil return groove 406. It will be appreciated that since the generation of oil mist is associated with the high-speed rotation of the grinding head, a portion of the generated oil mist will be sputtered outwards by the centrifugal action of the grinding head, and a small amount of oil will be condensed on the first baffle 403, and the second baffle 402 is configured to receive the oil drops dropped on the first baffle 403 and guide the oil drops into the oil return groove 406 in this embodiment. In addition, after the oil mist dissipated into the intake passage 404 is condensed, the condensed oil mist can be guided into the oil return groove 406 by the second deflector 402. And, the second guide plate 402 is configured to guide the flow direction of the entering air, so as to realize a better air flow path, and further ensure that the oil mist in the processing area is quickly and effectively recovered.

Referring to fig. 2, in some embodiments of the present invention, the first baffle 403 has a guide slope extending obliquely downward from an upper end of the first baffle 403 to cover the first air outlet 4013. It will be appreciated that more cooling oil will be sputtered and condensed on the right guard plate 102, and the oil droplets falling along the right guard plate 102 can be quickly guided to the second guide plate 402 by providing a guiding slope. In addition, in the control of the air inlet direction, the air inlet can be quickly guided downwards through the guide inclined plane, and then the air inlet is guided to the other side of the processing area by the second guide plate 402, so that the oil mist collecting efficiency can be improved.

Referring to fig. 1, in some embodiments of the present invention, the oil mist separator 400 is located at the upper end of the processing area, and the flow guiding assembly further includes a third flow guiding plate 401, where the third flow guiding plate 401 is disposed at the lower end of the left protection plate 101, and one end of the third flow guiding plate 401 is connected to the left protection plate 101, and the other end extends obliquely downward above the oil return groove 406. Also, since there is also mist condensation on the left protection plate 101, the embodiment can quickly guide the oil drops dropping along the left protection plate 101 through the arrangement of the third baffle 401, and drain the oil drops into the oil return groove 406. At the same time, the third baffle 401 and the second baffle 402 correspond to each other for intake air guiding.

Referring to fig. 3, in some embodiments of the invention, machine tool 100 is further provided with a chip scraping assembly comprising a chip scraping plate 407, the chip scraping plate 407 being held stationary relative to machine tool 100 and abutting tool box 200 or workpiece box 300 for cleaning the surface of tool box 200 or workpiece box 300 as tool box 200 or workpiece box 300 is moved. It will be appreciated that oil will condense on the surfaces of the tool box 200 and workpiece box 300, as oil mist will escape throughout the machining area. In this embodiment, by arranging the scraping plate 407 on the surfaces of the tool box 200 and the workpiece box 300, cleaning can be automatically completed when the tool box 200 and the workpiece box 300 move, so that oil and dust in gear grinding processing are scraped off, and the oil guide groove 408 is utilized for centralized collection and discharge. Since the main effect of the oil droplets is to influence the worker's operation, the scraping plate 407 may be provided only to the headstock having the effect of the oil droplets when the scraping plate 407 is actually provided. For example, when the tool box 200 is located above the workpiece box 300, if oil drops on the tool box 200 will affect gear replacement on the workpiece box 300, and oil drops on the workpiece box 300 will not affect, so the scraping plate 407 may be only disposed on the tool box 200, and vice versa. In addition, the scraping plate 407 may be provided to both the tool box 200 and the workpiece box 300 for cleaning.

Referring to fig. 3 to 6, in some embodiments of the present invention, the scraping assembly further includes an inner shield 405, wherein the inner shield 405 is disposed at an end of the tool box 200 away from the workpiece box 300, and is provided with a cavity for the tool box 200 to enter and exit, and the scraping plate 407 is disposed at an open end of the cavity of the inner shield 405. The movable shaft system of the tool box 200 can be covered by the inner protection cover 405, so that dust and oil mist are prevented from being infected. The inner cover 405 may be configured as a telescopic cover according to a moving distance of an actual headstock. The scraping plate 407 is arranged on the basis of the inner protective cover 405, so that scraping cleaning can be realized, and the protective effect of the inner protective cover 405 is promoted.

It will be appreciated that the inner shield 405 may also be provided in association with the workpiece enclosure 300 and is not limited to the tool enclosure 200.

Referring to fig. 5, in some embodiments of the present invention, the tool box 200 is provided above the workpiece box 300 to be movable up and down, the inner shield 405 is provided above the tool box 200, and the scraping plate 407 is provided at a lower end of the inner shield 405 and extends downward to fit the tool box 200 in a direction approaching the tool box 200. With the structure of this embodiment, when the tool box 200 moves upwards, the oil and dust on the surface of the tool box will be naturally scraped off by the scraping plate 407 and fall into the oil guiding groove 408 below. The oil guiding groove 408 includes a front oil guiding groove 4081 and a side oil guiding groove 4082, the front oil guiding groove 4081 is provided on the front side of the lower end position of the cutter case 200, the front oil guiding groove 4081 extends obliquely downward from the middle to the directions of the two ends, the side oil guiding groove 4082 is provided on the two sides of the lower end position of the cutter case 200, the front end of the side oil guiding groove 4082 is abutted against the front oil guiding groove 4081, and the rear end extends obliquely downward. After the oil falls into the oil guide groove 408, the oil is discharged from the rear end of the cutter case 200 away from the worker operation area into the oil return groove 406 by the cooperation of the front end oil guide groove 4081 and the side oil guide groove 4082. The front oil guiding groove 4081 and the side oil guiding groove 4082 are both inclined structures, which is beneficial to quick discharge of oil and can not cause blockage.

Referring to fig. 5, in some embodiments of the present invention, the oil guide assembly further includes oil guide inclined plates 409, the oil guide inclined plates 409 being installed at both sides of the tool box 200, one end of each of the oil guide inclined plates 409 being connected to the tool box 200, and the other end extending obliquely downward in a direction away from the tool box 200. Because the whole processing area has oil mist, this embodiment provides an oil mist adhesion matrix at the position close to the gear through setting up the oil guide swash plate 409, can improve the condensation collection efficiency of oil mist. And the inclination direction and the inclination angle of the oil guiding inclined plate 409 can be reasonably designed, and coagulated oil drops are discharged to the rear end.

When the oil guiding inclined plate 409 is actually provided, the oil guiding inclined plate 409 may be installed only on one side of the tool box 200. In addition, if the conditions permit, an oil guiding inclined plate 409 may be attached to one side or both sides of the work box 300.

Referring to fig. 1 to 7, in the present embodiment, an inner guard gear grinding machine for facilitating oil mist separation is provided with a machine tool 100, a rotating shaft is provided in a horizontal direction on the machine tool 100, a work box 300 is provided at a front end of the rotating shaft, and the work box 300 is swingable in a vertical plane by control of the rotating shaft. A workpiece spindle of a vertical rotation shaft is provided in the workpiece box 300 for mounting gears and controlling the gears to swing and rotate. The machine tool 100 is provided with a tool box 200 above a workpiece box 300, the tool box 200 can be moved and adjusted up and down, back and forth, left and right, a tool spindle is vertically arranged in the tool box 200, and a grinding head is mounted at the lower end of the tool spindle. Left and right guard plates 101, 102 are provided on left and right sides of the machine tool 100, respectively, and a split type guard door 103 is provided between the left and right guard plates 101, 102. The left guard plate 101, the right guard plate 102, and the guard door 103 are enclosed together to form a processing area. The machine tool 100 is provided with an air flow recovery device in a machining area, and specifically comprises an oil mist separator 400 arranged at the upper left corner of the machining area, a third guide plate 401 arranged at the lower end of the left protection plate 101 and extending obliquely downwards, an air inlet channel 404 arranged in the right protection plate 102, and a first guide plate 403 and a second guide plate 402 arranged at the lower end position of the right protection plate 102, with reference to the direction facing the machine tool 100. The air inlet channels 404 are distributed along the vertical direction, the outer side wall of the upper end of the air inlet channel 404 is provided with a second air inlet 4012, the inner side wall of the lower end of the air inlet channel 404 is provided with a first air outlet 4013, and the conduction between the processing area and the outside air is realized through the first air outlet 4013, the air inlet channel 404 and the second air inlet 4012. The upper end of the first baffle 403 is fixed on the right protection plate 102, the lower end extends leftwards to form a guiding inclined plane covering the first air outlet 4013, and the lower end of the guiding inclined plane continues to extend downwards vertically for a certain length, so that an air outlet chamber with an opening at the lower end is formed between the lower end and the right protection plate 102. The upper end of the second baffle 402 is connected to the right protection plate 102 below the first air outlet 4013, and the lower end thereof extends obliquely downward, and the lower end of the second baffle 402 extends leftward beyond the first baffle 403. And the second baffle 402 is aligned with the third baffle 401 in the horizontal direction. An inner shield 405 connected to the machine tool 100 is provided at the upper end of the tool box 200, and a scraping plate 407 is provided at the lower end of the inner shield 405, which is inclined to abut against the left and right sides and the front end of the tool box 200. The cutter case 200 is provided with side oil guide grooves 4082 on the left and right sides and a front oil guide groove 4081 on the front end at the lower end. The side oil guide grooves 4082 are inclined downward from the front to the rear. The front oil guide groove 4081 extends obliquely downward from the middle toward the both ends. And the left and right sides of the lower end position of the cutter box 200 are respectively provided with an oil guiding inclined plate 409, one end of the oil guiding inclined plate 409 is connected with the cutter box 200, and the other end of the oil guiding inclined plate 409 extends downwards in a tilting manner. And the lower end edge of the oil guiding inclined plate 409 extends obliquely downward from front to rear. The bottom of the machining area is provided with an oil return groove 406.

The inner protection gear grinding machine convenient for oil mist separation of the embodiment enables oil mist to be quickly recovered to the oil mist separator 400 from a processing area through the design of the gas convection principle on one hand, and then flows back to the machine tool 100 after being subjected to convenient quick purification treatment, and then returns to a cooling and filtering system through an oil return system for reuse. On the other hand, the structural designs of the scraping plate 407, the oil guiding inclined plate 409, the oil guiding groove 408 and the like are adopted at the grinding head position, so that the oil mist flows back to the lathe bed along a preset channel after being cooled, and then returns to the cooling and filtering system to be convenient for reuse. In another aspect, the design of the guide plate is added, so that the cooling oil and the abrasive dust on the left protection plate 101 and the right protection plate 102 are not accumulated, and the cooling oil and the abrasive dust return to the cooling and filtering system after preliminary precipitation. The combination of the three aspects ensures that the cooling oil and the oil mist are quickly recovered, does not pollute the environment, and simultaneously avoids the cooling oil drop on the protection in the machine tool 100 from being applied to an operator.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims (10)

1. An interior protection gear grinding machine convenient to oil mist separation, which characterized by comprising:

the machine tool is provided with a workpiece box, a cutter box and a protective door, wherein the workpiece box is provided with a workpiece spindle, the cutter box is provided with a cutter spindle, and the protective door is used for isolating a processing area capable of being opened and closed;

the air flow recovery device comprises an air inlet assembly and an oil mist separator, wherein the air inlet assembly and the oil mist separator are positioned on two opposite sides of the processing area, the air inlet assembly is provided with a first air outlet communicated with the processing area, and the oil mist separator is provided with a first air inlet communicated with the processing area;

the oil guide assembly is arranged on the cutter box and/or the workpiece box, and comprises an oil guide groove which extends from the front end of the processing area to the rear end of the processing area and is used for guiding and discharging oil to the rear end of the processing area;

and the oil return groove is arranged at the bottom of the processing area and is used for receiving oil drops.

2. The internal protection gear grinding machine convenient for oil mist separation according to claim 1, wherein the air inlet assembly comprises a right protection plate, the right protection plate is located on the right side of the machining area, the right protection plate is provided with an air inlet channel and a second air inlet, the second air inlet is communicated with the upper end of the air inlet channel and used for conducting the air inlet channel with the outside, and the first air outlet is arranged on the right protection plate and is communicated with the lower end of the air inlet channel.

3. The internal protection gear grinding machine convenient for oil mist separation according to claim 2, wherein the air flow recovery device further comprises a flow guiding assembly, the flow guiding assembly comprises a first flow guiding plate and a second flow guiding plate, the first flow guiding plate is connected to the right protection plate, the first flow guiding plate covers the first air outlet and forms an air outlet cavity with the right protection plate, the lower end of the air outlet cavity is communicated with the first air outlet cavity, the second flow guiding plate is located below the air outlet cavity, one end of the second flow guiding plate is connected with the right protection plate, and the other end of the second flow guiding plate extends to the upper portion of the oil return groove in a downward inclined mode.

4. The inner guard gear grinding machine for facilitating oil mist separation as set forth in claim 3 wherein said first deflector has a guiding slope extending obliquely downward from an upper end of said first deflector to cover said first air outlet.

5. The internal protection gear grinding machine convenient for oil mist separation according to claim 3, wherein the machine tool is provided with a left protection plate, the left protection plate is positioned on the left side of the processing area, the oil mist separator is connected to the upper end of the processing area, the flow guiding assembly further comprises a third flow guiding plate, one end of the third flow guiding plate is connected with the lower end of the left protection plate, and the other end of the third flow guiding plate is obliquely extended to the upper side of the oil return groove.

6. The internal protection gear grinding machine facilitating oil mist separation according to claim 1, wherein the machine tool is further provided with a scraping assembly, the scraping assembly is provided with a scraping plate, and the scraping plate is attached to the tool box and/or the workpiece box and used for cleaning the surfaces of the tool box and/or the workpiece box when the tool box and/or the workpiece box move.

7. The inner guard gear grinding machine facilitating oil mist separation according to claim 6, wherein the scraping assembly is provided with an inner guard, and the scraping plate is arranged at an opening end of a containing cavity of the inner guard;

the inner protective cover is arranged at one end of the tool box, which is far away from the workpiece box, and the accommodating cavity is used for the tool box to enter and exit;

and/or the inner protective cover is arranged at one end of the workpiece box, which is far away from the tool box, and the accommodating cavity is used for the workpiece box to enter and exit.

8. The internal protection gear grinding machine facilitating oil mist separation according to claim 7, wherein the tool box is movably arranged above the workpiece box, the internal protection cover is arranged above the tool box, and the scraping plate is arranged at the lower end of the internal protection cover and extends downwards to be attached to the tool box along a direction approaching the tool box.

9. The internal protection gear grinding machine for oil mist separation according to claim 8, wherein the oil guiding groove comprises a front oil guiding groove and a side oil guiding groove, the front oil guiding groove is arranged on the front side of the lower end position of the cutter box, the front oil guiding groove extends downwards in a slanting manner from the middle to the directions of two ends, the side oil guiding grooves are arranged on two sides of the lower end position of the cutter box, the front end of the side oil guiding groove is abutted to the front oil guiding groove, and the rear end of the side oil guiding groove extends downwards in a slanting manner.

10. The inner guard gear grinding machine for facilitating oil mist separation of claim 1, wherein said oil guide assembly further comprises an oil guide swash plate;

the oil guide inclined plate is arranged on at least one side of the cutter box, one end of the oil guide inclined plate is connected with the cutter box, and the other end of the oil guide inclined plate extends in a downward inclined mode along the direction away from the cutter box;

and/or the oil guide inclined plate is arranged on at least one side of the workpiece box, one end of the oil guide inclined plate is connected with the workpiece box, and the other end of the oil guide inclined plate extends in a downward inclined manner along the direction away from the workpiece box.