Protective device for preventing scrap iron from splashing for main shaft of gear turning machine
By installing the retaining ring and unloading groove outside the main shaft of the gear machine, the problem of iron filings splash is solved, and the centralized collection of cutting fluid and iron filings is realized to protect the safety of workers and equipment.
Patent Information
- Application Number
- CN202422523851.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-18
AI Technical Summary
During the working process of the gear gear, iron filings splash everywhere, polluting the environment and posing a threat to operators and equipment.
The retaining ring is installed outside the main shaft of the gear machine to form a chamber equipped with a discharge groove to block the cutting fluid and iron filings. The cutting fluid forms a spiral flow through the design of the inner wall of the retaining ring, and the iron filings and cutting fluid are concentratedly collected into the discharge groove.
Effectively prevent iron filings from splashing, protect workers' safety, reduce damage to equipment, and realize centralized collection of cutting fluid and iron filings.
Smart Images
Figure CN223222976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a protective device, in particular to an anti-iron chip splashing protective device for a main shaft of a gear turning machine. Background Art
[0002] During the operation of the gear turning machine, a large amount of iron chips are generated. These iron chips fly everywhere, not only polluting the working environment, but also posing a threat to the safety of the operators, and easily causing damage to some precision parts of the gear turning machine. Utility Model Content
[0003] The utility model aims to provide a chip-proof splash protection device for a gear turning machine spindle, so as to block the chip-proof iron produced during machining and prevent the chip-proof iron from splashing everywhere.
[0004] To achieve the above purpose, the present invention provides the following technical solutions:
[0005] A chip splash protection device for a gear turning machine spindle, comprising:
[0006] A retaining ring is fixed to the main shaft of the gear skiving machine to form a cavity below the main shaft of the gear skiving machine for the gear being machined to enter;
[0007] The discharge chute is arranged at the lower part of the retaining ring and protrudes outward from the retaining ring. The lower part of the discharge chute is opened.
[0008] Preferably, the angle of the fan-shaped area on the main shaft of the gear skiving machine corresponding to the discharge chute is not less than 60°.
[0009] Preferably, the retaining ring is in an annular shape.
[0010] Preferably, the discharge trough has a feed trough wall, which is located on the inlet side of the cutting fluid flowing in an annular direction on the inner wall of the retaining ring. The feed trough wall is smoothly connected to the inner wall of the retaining ring and gradually extends outward to be smoothly connected to the bottom of the discharge trough.
[0011] Preferably, the discharge trough further has a blocking trough wall, which is located on the side where the cutting fluid flows out of the discharge trough, and the blocking trough wall extends along the radial direction of the retaining ring to directly block the direction of the cutting fluid entering the discharge trough.
[0012] Preferably, the barrier groove wall is inclined toward the entry side of the cutting fluid.
[0013] Preferably, the blocking groove wall and the lower end surface of the retaining ring have an angle of 45°.
[0014] Preferably, a slot is further provided on the upper edge of the retaining ring, and the slot extends vertically from the upper edge to the lower edge of the retaining ring and then horizontally to form an L-shaped structure.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. In this solution, a retaining ring is installed on the outside of the main shaft of the gear turning machine to block the cutting fluid and iron chips mixed in the cutting fluid from splashing out of the workpiece during gear machining, thereby preventing the splashing iron chips from splashing onto the workers and causing injuries. In addition, because the cutting fluid in the retaining ring impacts the processed gear laterally, when the cutting fluid separates from the workpiece and contacts the inner wall of the retaining ring, it has a component of force that moves tangentially along the inner wall of the retaining ring. At this time, the cutting fluid will flow in a spiral shape on the inner wall of the retaining ring. After this part of the cutting fluid carries the mixed iron chips into the discharge trough, the cutting fluid and iron chips are concentrated and collected in the discharge trough.
[0017] 2. The sector area on the spindle corresponding to the discharge chute is not less than 60° to ensure that the discharge chute has enough space to guide the incoming cutting fluid and the iron chips that enter along with the cutting fluid.
[0018] 3. The retaining ring is in a circular shape, which can better guide the cutting fluid to flow in a circular shape on the inner wall of the retaining ring, thereby ensuring that enough cutting fluid can first enter the discharge trough and then fall from the discharge trough, thereby enhancing the guiding effect of the discharge trough.
[0019] 4. The transitional smooth connection between the feed trough wall and the inner wall of the retaining ring allows the cutting fluid to smoothly enter the discharge trough.
[0020] 5. Set a blocking groove wall facing the flow direction of the cutting fluid flowing into the discharge trough to block the flowing cutting fluid in the discharge trough, so that the cutting fluid can flow down from the lower open part of the discharge trough, thereby realizing effective guidance of the cutting fluid.
[0021] 6. The blocking groove wall is set at an angle to press the blocked cutting fluid downward.
[0022] 7. A slot is provided to facilitate the installation of the retaining ring on the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a state diagram of the utility model when it is installed on the main shaft of the gear skiving machine;
[0024] Figure 2 It is a structural diagram of the utility model;
[0025] Figure 3 It is the main view of the present utility model.
[0026] Reference numerals: 100. retaining ring 110. slot 200. discharge chute 210. feed chute wall 220. blocking chute wall 300. gear turning machine spindle DETAILED DESCRIPTION
[0027] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0030] like Figures 1 to 3 The illustrated device for protecting the spindle of a gear turning machine from chip splashing includes a retaining ring 100 fixedly mounted on the spindle 300 of the gear turning machine. The retaining ring surrounds the lower portion of the spindle, forming a chamber with the spindle for the gear being processed to enter during gear machining. It should be noted that the retaining ring surrounds the outside of the gear being processed to ensure that cutting fluid and chippings flung by the high-speed turning tool and gear during gear machining are blocked by the retaining ring and fall along the inner wall of the retaining ring. It should be noted that to ensure that the chippings and cutting fluid generated during gear machining are directly returned to the waste collection trough of the gear turning machine as much as possible, the retaining ring is also provided with a radially outwardly projecting discharge chute 200. The discharge chute is located below the retaining ring, with its lower opening facing the waste collection trough below the gear turning machine.
[0031] In some embodiments, the area that the discharge chute can affect can be optimized, that is, the fan-shaped area on the gear turning machine spindle 300 corresponding to the discharge chute is ensured to be no less than 60°. Under this structure, at least no less than 1 / 6 of the cutting fluid on the annular area can enter the discharge chute and carry the iron chips generated by machining the gears to the waste collection chute below.
[0032] It should be noted that in this embodiment, the shape of the retaining ring can be various (rectangular, elliptical, polygonal), and as a preference, the retaining ring is preferably annular to reduce the high impact of the retaining ring shape on the cutting fluid circulation on the inner wall of the retaining ring. Specifically, in some embodiments, in order to ensure that more cutting fluid can carry iron chips into the discharge trough, the first nozzle of the cutting fluid can be sprayed laterally on the workpiece surface, while the second nozzle is aligned laterally with the inner wall of the retaining ring. Among them, the cutting fluid sprayed by the second nozzle can enter the inner wall of the retaining ring tangentially to form a liquid ring similar to an annular flow. When the cutting fluid sprayed by the first nozzle splashes out from the workpiece, even if its tangential component on the inner wall of the retaining ring is small, it can follow the already formed annular flow into the discharge trough at the rear. It should be noted that a large amount of iron chips are mixed in this part of the cutting fluid. After being blocked by the retaining ring, it follows the annular flow of the cutting fluid into the discharge trough at the rear.
[0033] In some embodiments, the structure of the discharge trough can also be optimized to allow the cutting fluid to enter more smoothly. Specifically, the discharge trough 200 has a feed trough wall 210 to guide the circulating cutting fluid to enter the discharge trough smoothly. Figure 2 As shown, the feed trough wall is located on the inner wall on the incoming material side of the circular flow, and the feed trough wall has a curve that gradually expands outward, so that the two sides of the feed trough wall are smoothly connected to the inner wall of the retaining ring and the bottom of the discharge trough respectively. The cutting fluid flowing in an annular flow will flow along the feed trough wall when passing through the feed trough wall and eventually enter the discharge trough under the guidance of the feed trough wall.
[0034] In addition, it should be noted that the annular cutting fluid still has a large kinetic energy after entering the discharge trough. If no hysteresis and resistance are applied to it, it may still overflow the discharge trough and flow out of the discharge trough. Figure 2 、 Figure 3As shown, a blocking groove wall 220 is also provided in the outflow direction of the circulating cutting fluid. Specifically, the blocking groove wall extends along the radial direction of the retaining ring 100, so that the two sides of the blocking groove wall are vertically connected to the inner wall of the retaining ring and the bottom of the discharge trough respectively. At this time, the blocking groove wall is facing the direction of the cutting fluid entering the discharge trough, so that the cutting fluid after entering the discharge trough will have a frontal impact on the blocking groove wall, thereby quickly reducing the kinetic energy of the cutting fluid, so that the cutting fluid stays in the discharge trough, and is unloaded by the lower opening of the discharge wiper. It should be noted that after the iron chips entrained by the cutting fluid follow the cutting fluid into the discharge trough, their dynamics are synchronized with the cutting fluid.
[0035] It should be noted that, based on the above solution, the blocked cutting fluid can also be guided in a certain direction so that it can fall downward more accurately. Specifically, the blocking groove wall 220 in the above solution has an angle with the lower end face of the retaining ring, and the inclination direction of the blocking groove wall is inclined toward the entry direction of the cutting fluid. That is, after the cutting fluid entering the discharge trough at a certain speed collides with the blocking groove wall, the reaction force it receives from the blocking groove wall can be decomposed into a component force toward the incoming direction and a component force downward, thereby accelerating the downward movement of the cutting fluid and the iron chips in the cutting fluid.
[0036] As a preferred embodiment, the angle between the blocking groove wall and the lower end face of the retaining ring is 45 degrees. Under this inclination angle, the force components are one horizontal and one downward, the horizontal force can recoil the cutting fluid coming from the rear and the downward force can make the cutting fluid fall faster.
[0037] Finally, to facilitate the secure installation of the retaining ring on the gear skiving machine spindle, at least two retaining grooves 110 are defined in the upper portion of the retaining ring. These grooves extend downward from the upper edge of the retaining ring for a certain length, then extend horizontally along the outer contour of the retaining ring to form an L-shape. This shape allows the retaining ring to be installed without completely removing the bolts threaded onto the gear skiving machine spindle.
[0038] Working Principle: When machining a gear, one jet of cutting fluid is directed laterally toward the machining location on the gear, while the other jet is directed toward the inner wall of the retaining ring. Due to the large volume of cutting fluid sprayed onto the gear, the fluid that splashes from the workpiece surface, regardless of whether it comes into contact with the workpiece, retains its kinetic energy and flows laterally toward the inner wall of the retaining ring. The tangential force of this fluid propels the fluid, splashed from the workpiece, into the inner wall of the retaining ring in a circular flow. Simultaneously, the cutting fluid sprayed directly onto the inner wall of the retaining ring forms a stable circular flow, carrying the splashed cutting fluid and accompanying metal chips into the discharge chute at the rear. Once in the chute, the cutting fluid and metal chips are blocked by the chute walls, losing their kinetic energy. Ultimately, under the influence of gravity, they fall out of the lower opening of the discharge chute into the waste collection trough directly below the lower opening of the discharge wiper.
[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A chip splash protection device for a gear turning machine spindle, characterized by: include A retaining ring (100) is fixed to the main shaft of the gear skiving machine to form a chamber below the main shaft (300) of the gear skiving machine for the gear being machined to enter; The discharge chute (200) is arranged at the lower part of the retaining ring (100) and protrudes outward from the retaining ring (100). The lower part of the discharge chute (200) is open.
2. The chip splash protection device for a gear skiving machine spindle according to claim 1, characterized in that: The angle of the sector-shaped area on the gear skiving machine main shaft (300) corresponding to the discharge chute (200) is not less than 60°.
3. The chip-splatter protection device for a gear skiving machine spindle according to claim 2, characterized in that: The retaining ring (100) is in an annular shape.
4. The chip splash protection device for a gear skiving machine spindle according to claim 3, characterized in that: The discharge trough (200) has a feed trough wall (210), and the feed trough wall (210) is located on the inlet side of the cutting fluid flowing in an annular manner on the inner wall of the retaining ring (100). The feed trough wall (210) is smoothly connected to the inner wall of the retaining ring (100) and gradually extends outwards to be smoothly connected to the bottom of the discharge trough.
5. The chip splash protection device for a gear skiving machine spindle according to claim 3, characterized in that: The discharge trough (200) further comprises a blocking trough wall (220), the blocking trough wall (220) being located on the side where the cutting fluid flows out of the discharge trough (200), and the blocking trough wall (220) extending along the radial direction of the retaining ring (100) to directly block the direction of the cutting fluid entering the discharge trough (200).
6. The chip splash protection device for a gear skiving machine spindle according to claim 5, characterized in that: The blocking groove wall (220) is arranged to be inclined toward the inlet side of the cutting fluid.
7. The chip splash protection device for a gear skiving machine spindle according to claim 6, characterized in that: The blocking groove wall (220) and the lower end surface of the retaining ring (100) form an included angle of 45°.
8. The chip splash protection device for a gear skiving machine spindle according to claim 1, characterized in that: A clamping groove (110) is further provided on the upper edge of the retaining ring (100). The clamping groove (110) extends vertically from the upper edge of the retaining ring (100) to the lower edge and then extends horizontally to form an L-shaped structure.