Oil mist collection structure for deep hole drilling machine

Abstract

The present invention discloses an oil mist collection structure for a deep hole drilling machine, comprising a support rod, at least two groups of baffles are arranged on the outer side of the support rod, the angle between the two groups of baffles is less than 90 degrees, the baffles and the support rod form an oil mist buffer collection area, a counterweight is also arranged on the outer side of the support rod, and support pins are arranged at both ends of the support rod. The function of the counterweight is to ensure that the V-shaped opening of the buffer device is always facing the direction of the cutting oil spraying, which is convenient for buffering the high-pressure oil and reducing the formation of oil mist, and preventing the oil mist from spreading everywhere. The device can thoroughly collect the oil mist generated during drilling processing, and is combined with the workpiece, machine tool protective cover, electrostatic oil mist collector, machine tool headstock and tailstock to form a complete oil mist collection and treatment system.

Description

Technical Field

[0001] The invention relates to the technical field of high-efficiency and high-precision machining of CNC deep hole machine tools, and in particular to an oil mist collection structure for a deep hole drilling machine. Background Art

[0002] The multi-axis CNC deep hole drilling machine has up to fifty spindles rotating at high speed at the same time, drilling deep holes in the radial direction of cylindrical annular workpieces. The number of holes processed is as many as hundreds of thousands, and the processing method adopts the internal cooling gun drilling method. The coolant is a special cutting oil for gun drilling, which is very expensive. When the hole is drilled through, a large amount of high-pressure oil is sprayed out at the same time, forming a large amount of oil mist. The machine tool protective cover can only block part of the oil mist, and cannot completely collect and process the generated oil mist. Long-term accumulation will not only fill the interior of the machine tool with oil stains, causing rapid aging of machine tool parts, but also leak outside the machine tool, polluting the environment and causing harm to people. Summary of the invention

[0003] In view of the above problems, the present invention discloses an oil mist collection structure for a deep hole drilling machine, which can thoroughly collect the oil mist generated during drilling processing, and is combined with a workpiece, a machine tool protective cover, an electrostatic oil mist collector, a machine tool headstock and a tailstock to form a complete oil mist collection and treatment system.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0005] An oil mist collection structure for a deep hole drilling machine includes a support rod, at least two groups of baffles are arranged on the outer side of the support rod, the angle between the two groups of baffles is less than 90 degrees, the baffles and the support rod form an oil mist buffer collection area, a counterweight is also arranged on the outer side of the support rod, and support pins are arranged at both ends of the support rod. The function of the counterweight is to ensure that the V-shaped opening of the buffer device is always facing the direction of the cutting oil spraying, which is convenient for the buffering of high-pressure oil and the reduction of the formation of oil mist, and prevent the oil mist from spreading everywhere.

[0006] Preferably, the support rod is composed of multiple sleeve rods that are mutually nested, and the outer wall of each sleeve rod is provided with a baffle. Before loading the workpiece, the length of the sleeve rod of the device can be adjusted at any time according to the length of the workpiece to meet the demand for buffering and blocking oil. The length adjustment is convenient and the fixing method is simple.

[0007] Preferably, the baffles are in two groups, and the two groups of baffles are arranged on the outer side of the support rod in a V-shaped structure.

[0008] Preferably, the two groups of baffles are arranged symmetrically about the center of the support rod.

[0009] Preferably, the counterweight block is arranged at 90 degrees to the opening of the oil mist buffer collection area.

[0010] Preferably, the baffles are hinged to the support rods, and an angle adjustment mechanism is provided between each group of baffles and the outer wall of the support rods.

[0011] Preferably, the angle adjustment mechanism comprises a screw rod, the screw rod is hinged to the outer wall of the support rod, the screw rod passes through the baffle, and an angle positioning nut is threadedly connected to the screw rod.

[0012] Preferably, the angle positioning nuts are in two groups, and the two groups of angle positioning nuts are respectively located on both sides of the baffle.

[0013] Beneficial Effects of the Invention

[0014] 1. The oil mist buffering and collection function of the device can buffer and reduce the generation and diffusion of oil mist, reducing the high-pressure oil mist generated during deep hole drilling to about 90%.

[0015] 2. Under the action of the counterweight block and the deep groove ball bearing, the V-shaped mouth of the buffer oil baffle can always face the direction of the cutting oil spraying.

[0016] 3. The device can be extended and retracted arbitrarily within a certain length range to meet the use of workpieces of different lengths. It is easy to adjust and fix and has low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The structure of the present invention Figure 1 ;

[0019] Figure 2 The structure of the present invention Figure 2 ;

[0020] Figure 3 It is a structural diagram after the present invention is connected with a machine tool;

[0021] Figure 4 It is the external structure diagram of the machine tool of the present invention;

[0022] Figure 5 The structure of the present invention Figure 3 . DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] In the description of the present invention, it is necessary to understand that the terms "inside", "outside", "left" and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 therefore cannot be understood as a limitation on the present invention.

[0025] Embodiment 1

[0026] The present invention discloses a Figure 1-4 The oil mist collection structure of the deep hole drilling machine shown in the figure includes a support rod 2 and a baffle 3 and a counterweight 4 connected to the outside of the support rod. The support rod is a hollow tubular structure. The baffle 3 is divided into two groups. The two groups of baffles are symmetrically distributed about the axis of the support rod. The side wall of the tubular structure is open at the connection with the baffle. One group of baffles is connected to a side wall of the support rod. The two groups of baffles and the support rod form a V-shaped opening oil mist buffer collection area to concentrate the high-pressure oil mist in the tubular area of ​​the support rod with the V-shaped opening. In order to prevent the baffle from rotating to the lowest point of the support rod under the action of gravity, a counterweight 4 is also arranged on the outer side of the outermost support rod. In a certain cross section of the support rod, the counterweight is arranged at 90 degrees with the V-shaped opening. The function of the counterweight is to ensure that the V-shaped opening of the buffer device is always facing the direction of the cutting oil spraying, which is convenient for the buffering of high-pressure oil and the reduction of the formation of oil mist, and prevents the oil mist from spreading everywhere. A support pin 1 for connecting with the machine tool is arranged at each end of the support rod.

[0027] Due to the different lengths of workpieces, the support rod is designed to be composed of multiple sets of rods, and each set of rods is provided with a baffle on the outside. Before loading the workpiece, the inner and outer rods are pulled out according to the length of the workpiece to adjust the length of the device's rod (i.e., support rod) at any time. After the length is adjusted, the adjacent rods are fixed in place with screws to meet the requirements of the V-shaped opening composed of the baffle to buffer the oil. The length is easy to adjust and the fixing method is simple.

[0028] In order to ensure that the length of the support rod is fixed, a positioning device is provided between two adjacent sleeves, and the positioning device is preferably a set screw.

[0029] The installation steps and usage of the buffer device are as follows:

[0030] First, deep groove ball bearings 8 are installed in the inner holes of the headstock 10 spindle and the tailstock 10 spindle of the machine tool, and then the buffer device is installed inside the workpiece. The support pins 1 at both ends of the buffer device are inserted into the deep groove ball bearings in the inner holes of the headstock spindle and the tailstock spindle. Finally, the workpiece 7 is aligned and fixed. The workpiece 7, the workpiece fixture 6, and the buffer device form a closed or semi-closed space. During the processing, when the workpiece is driven by the four-claw chuck 9 to rotate to the next position, the buffer device, under the action of the counterweight block and the bearing, always faces the direction of the cutting oil spraying in the V-shaped mouth of the buffer device, and centrally buffers and collects the cutting oil sprayed by the multi-spindle tools at the same time. Since the high-pressure cutting oil is only sprayed when the hole is drilled through, it is intermittent. Therefore, the oil mist generated is buffered, collected and precipitated by the buffer device, and about 10% of the oil mist floats to the inside of the machine tool through the processed holes on the surface of the workpiece. Finally, it passes through the external electrostatic oil mist collector 12 and forms a semi-enclosed space with the machine tool's protective cover 11. Through the adsorption of the circulating negative pressure airflow, the remaining 10% or so of oil mist in the protective cover can be completely collected.

[0031] Embodiment 2

[0032] In order to ensure that oil mist can be effectively collected when holes of different diameters are drilled to prevent leakage, the present invention also discloses a method as follows Figure 5 The collection structure shown in the figure, in which the support rod is a hollow tubular structure with a notch on the side, a baffle 3 is hinged on both side walls of the tubular structure, a hinge seat 2-1 is welded to the tube wall on the outside of the baffle, a screw 11 is hinged inside the hinge seat, the screw passes through the baffle 3 upward, and angle positioning nuts connected to the screw are set on both sides of the baffle. By adjusting the position of the nut, different opening angles of the two sets of baffles can be achieved, thereby adapting to the oil mist collection when drilling holes of different diameters.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A deep hole drilling machine oil mist collection structure, characterized in that: It includes a support rod, the outer side of the support rod is provided with two groups of baffles, the two groups of baffles are V-shaped, the angle between the two groups of baffles is less than 90 degrees, the baffles and the support rod form an oil mist buffer collection area, the outer side of the support rod is also provided with a counterweight block, and both ends of the support rod are provided with support pins; The baffles are hinged to the support rods, and an angle adjustment mechanism is provided between each set of baffles and the outer wall of the support rod; The angle adjustment mechanism comprises a screw rod, the screw rod is hinged to the outer wall of the support rod, the screw rod passes through the baffle plate, and an angle positioning nut is threadedly connected to the screw rod; The support rod is composed of multiple sleeve rods that are mutually nested, and the outer wall of each sleeve rod is provided with a baffle; The installation and use status of the deep hole drilling machine oil mist collection structure on the machine tool are as follows: First, deep groove ball bearings are installed in the inner holes of the headstock spindle and the tailstock spindle of the machine tool respectively, and then the deep hole drilling machine oil mist collection structure is installed inside the workpiece, and the support pins at both ends of the deep hole drilling machine oil mist collection structure are inserted into the deep groove ball bearings in the inner holes of the headstock spindle and the tailstock spindle. Finally, the workpiece is aligned and fixed, and the workpiece, the workpiece fixture, and the deep hole drilling machine oil mist collection structure form a closed or semi-closed space; During the machining process, when the workpiece rotates to the next position driven by the four-jaw chuck, the V-shaped opening of the deep hole drilling machine's oil mist collection structure is always oriented toward the direction of the cutting oil spraying out under the action of the counterweight and the bearing, so as to centrally buffer and collect the cutting oil sprayed out simultaneously by the multi-spindle tools; since the high-pressure cutting oil is only sprayed out when the hole is drilled through, it is intermittent, and therefore the generated oil mist is buffered, collected and precipitated in the oil mist buffer collection area, and 10% of the oil mist floats into the inside of the machine tool through the processed holes on the workpiece surface; finally, it passes through a semi-enclosed space formed by an external electrostatic oil mist collector and the machine tool's protective cover, and the remaining 10% of the oil mist in the protective cover is completely collected through the adsorption of the circulating negative pressure airflow.

2. The deep hole drilling machine oil mist collection structure according to claim 1 is characterized in that: The two groups of baffles are arranged symmetrically about the center of the support rod.

3. The oil mist collection structure for a deep hole drilling machine according to claim 1 is characterized in that: There are two groups of angle positioning nuts, and the two groups of angle positioning nuts are respectively located on both sides of the baffle.

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