Detachable perforated fragment ejector capable of rotating at high speed

Abstract

The utility model relates to the technical field of tapping devices, in particular to a detachable tapping fragment ejector capable of rotating at a high speed, which comprises a metal shell, six scrap discharge grooves are arranged on the outer surface of the metal shell, an upper round shell is fixedly connected to the middle of the upper end of the metal shell, a first screw hole is arranged on the right portion of the outer surface of the upper round shell, and a second screw hole is arranged on the right portion of the outer surface of the upper round shell. A tapper connecting rod is in threaded connection with the interior of the upper round shell, a second screw hole is formed in the right portion of the outer surface of the tapper connecting rod, a titanium-plated center drill is fixedly connected to the middle of the lower end of the tapper connecting rod, a bearing is fixedly connected to the middle of the upper shell wall of the metal shell, and a spring is connected to the outer side of the bearing in a sleeving mode. According to the detachable trepanning fragment ejector capable of rotating at high speed, high-speed rotation is achieved through linkage of the spring and the bearing, and compared with a traditional trepanning device, the trepanning precision and quality are improved through cooperation of the helical tooth groove, the carborundum coating, the scrap discharging groove and other structures, and meanwhile material scrapping is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hole opener technology, and in particular to a detachable hole opener fragment ejector that can rotate at high speed. Background Technology

[0002] In many fields such as building decoration, furniture manufacturing and industrial processing, it is often necessary to make holes in various hard materials. Traditional hole saws are usually directly mounted on power equipment such as angle grinders and electric drills. However, there are still many problems in the hole making process.

[0003] In existing drilling equipment, the spring is fixed in the middle of the upper shell of the metal casing and cannot rotate. There is no linkage mechanism between the spring and the bearing. The equipment relies solely on the power equipment for drive, making it difficult to achieve high-speed and stable rotation. When processing hard materials such as ceramic tiles and marble, the cutting speed is slow and the drilling efficiency is low, making it difficult to meet the needs of large-scale production. Because it cannot achieve high-speed rotation, traditional drilling equipment cannot make full use of centrifugal force to discharge waste. The chips and waste generated during drilling tend to accumulate in the drilling area, which not only hinders the normal operation of the drill bit and increases drill bit wear, but may also cause high temperatures due to friction, resulting in quality problems such as cracks and chipping on the surface of the processed material. Therefore, we have introduced a detachable drilling debris ejector that can rotate at high speed. Utility Model Content

[0004] The main purpose of this invention is to provide a detachable, perforated fragment ejector that can rotate at high speed, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-speed rotating detachable chip ejector includes a metal shell with six chip removal grooves on its outer surface. An upper circular shell is fixedly connected to the upper center of the metal shell. A first threaded hole is formed on the right side of the outer surface of the upper circular shell, and a chip ejector connecting rod is threaded into the upper circular shell. A second threaded hole is formed on the right side of the outer surface of the chip ejector connecting rod, and a bolt is threaded into the first threaded hole. Several oblique toothed grooves are formed at the lower end of the metal shell. A diamond-coated abrasive coating is fixedly connected to the lower part of the outer surface of the metal shell. A titanium-plated center drill is fixedly connected to the lower center of the chip ejector connecting rod. A bearing is fixedly connected to the middle of the upper shell wall of the metal shell, and a spring is sleeved on the outer side of the bearing.

[0007] Preferably, the six chip removal grooves are evenly distributed along the circumferential direction of the outer surface of the metal casing, and the groove depth of the chip removal grooves is 8mm.

[0008] Preferably, the oblique tooth groove is inclined at a 30° angle to the axis of the metal shell.

[0009] Preferably, several oblique grooves are arranged in a ring array at the lower end of the metal casing.

[0010] Preferably, the thickness of the diamond coating is 0.3 mm.

[0011] Preferably, the length of the titanium-plated center drill is 8mm, and its axis is completely coincident with the axis of the hole opener connecting rod.

[0012] Preferably, the titanium-plated center drill is located inside the spring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In this utility model, by fixing the bearing to the middle of the upper shell wall of the metal housing and attaching a spring to its outer side, a linkage structure between the spring and the bearing is constructed. When the equipment is started, the bearing effectively reduces the rotational friction, and the spring provides buffering assistance, enabling the hole opener connecting rod and the metal housing to achieve high-speed rotation. At the same time, the lower end of the metal housing has a ring array of oblique tooth grooves that are inclined at 30° to the axis. Combined with the 0.3mm thick diamond coating on the outer surface, the cutting ability of hard materials such as ceramic tiles and marble is enhanced.

[0015] 2. In this utility model, six chip removal grooves with a depth of 8mm are evenly distributed on the outer surface of the metal shell. Under the action of high-speed rotation centrifugal force, the waste material can be quickly thrown into the grooves and discharged, avoiding the accumulation of waste material and affecting the drilling stability. In addition, the length of the titanium-plated center drill is designed to be 8mm and coincides with the axis of the hole opener connecting rod, which improves the accuracy and quality of hole opening and effectively reduces the material scrap rate. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of a detachable perforated fragment ejector capable of high-speed rotation according to the present invention.

[0017] Figure 2 This is a schematic diagram of the overall disassembled structure of a detachable perforated fragment ejector capable of high-speed rotation according to the present invention.

[0018] Figure 3 This is a second-view structural diagram of a detachable perforated fragment ejector capable of high-speed rotation according to the present invention.

[0019] Figure 4 This is a partial cross-sectional schematic diagram of a detachable perforated fragment ejector capable of high-speed rotation according to the present invention.

[0020] In the diagram: 1. Metal outer shell; 2. Upper round shell; 3. Chip removal groove; 4. Slanted tooth groove; 5. Diamond coating; 6. Hole opener connecting rod; 7. Titanium-plated center drill; 8. Bolt; 9. First screw hole; 10. Bearing; 11. Spring; 12. Second screw hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A high-speed rotating detachable chip ejector includes a metal shell 1. The outer surface of the metal shell 1 has six chip removal grooves 3. An upper circular shell 2 is fixedly connected to the upper middle part of the metal shell 1. A first screw hole 9 is opened on the right side of the outer surface of the upper circular shell 2. A chip ejector connecting rod 6 is internally threaded to the upper circular shell 2. A second screw hole 12 is opened on the right side of the outer surface of the chip ejector connecting rod 6. A bolt 8 is internally threaded to the first screw hole 9. Several oblique tooth grooves 4 are opened at the lower end of the metal shell 1. A diamond coating 5 is fixedly connected to the lower part of the outer surface of the metal shell 1. A titanium-plated center drill 7 is fixedly connected to the lower middle part of the chip ejector connecting rod 6. A bearing 10 is fixedly connected to the middle of the upper shell wall of the metal shell 1. A spring 11 is sleeved on the outside of the bearing 10.

[0026] In this embodiment, six chip removal grooves 3 are evenly distributed along the circumferential direction of the outer surface of the metal shell 1, and the groove depth of the chip removal grooves 3 is 8mm.

[0027] Through the above scheme: the uniformly distributed waste discharge grooves 3 can make the waste generated by drilling more evenly thrown into the grooves when the metal shell 1 rotates, avoiding the waste from accumulating to one side and affecting the rotational stability; the groove depth of 8mm can accommodate enough waste without weakening the structural strength of the metal shell 1 due to excessive depth.

[0028] In this embodiment, the oblique tooth groove 4 is inclined at a 30° angle to the axis of the metal shell 1.

[0029] The above scheme allows the 30° tilt angle to generate a more reasonable decomposition of cutting force when the helical tooth groove 4 rotates and cuts the metal shell 1, thereby enhancing the cutting and crushing effect on the material.

[0030] In this embodiment, several oblique grooves 4 are arranged in a ring array at the lower end of the metal shell 1.

[0031] Through the above scheme, the oblique toothed grooves 4 distributed in a ring array can make the metal shell 1 be subjected to uniform force when in contact with the material, ensuring a smooth opening process and avoiding opening displacement or shaking caused by uneven local force.

[0032] In this embodiment, the thickness of the diamond coating 5 is 0.3 mm.

[0033] Through the above solution, the 0.3mm thick diamond coating 5 can provide sufficient hardness and wear resistance, and enhance the metal shell 1's ability to cut hard materials such as ceramic tiles and marble.

[0034] In this embodiment, the length of the titanium-plated center drill 7 is 8mm, and its axis is completely coincident with the axis of the hole opener connecting rod 6.

[0035] The above solution allows the 8mm length of the titanium-plated center drill 7 to effectively penetrate the material for positioning and pre-drilling. The coincidence of the axes ensures the concentricity of the drilling process, improving the accuracy and quality of the opening.

[0036] In this embodiment, the titanium-plated center drill 7 is located inside the spring 11.

[0037] With the above solution, the titanium-plated center drill 7 is placed inside the spring 11, and the spring 11 can provide buffer and support for the titanium-plated center drill 7 during drilling.

[0038] It should be noted that this utility model is a high-speed rotating detachable hole-opening fragment ejector. When this high-speed rotating detachable hole-opening fragment ejector is installed on an angle grinder or electric drill, after the equipment is started, the power is transmitted to the hole opener connecting rod 6. Because the bearing 10 fixedly connected to the middle of the upper shell wall of the metal shell 1 has a spring 11 sleeved on its outer side, the bearing 10 can reduce the friction during rotation, so that the hole opener connecting rod 6 can achieve high-speed rotation with the assistance of the spring 11. During the hole opening process, the lower end of the hole opener connecting rod 6... The titanium-plated center drill 7, fixedly connected in the middle, first contacts the processing material such as ceramic tile, marble, or glass. Utilizing its high hardness, it quickly drills the initial hole on the material surface. As the drill penetrates deeper, the metal outer shell 1 begins to rotate under the drive of the hole opener connecting rod 6. Because a bearing 10 is fixedly connected to the middle of the upper shell wall of the metal outer shell 1, and a spring 11 is sleeved on the outside of the bearing 10, the bearing 10 reduces friction between the metal outer shell 1 and other components, enabling the metal outer shell 1 to achieve high-speed rotation. During the high-speed rotation of the metal outer shell 1... In the process, six 8mm deep chip removal grooves 3, evenly distributed along the circumference on the outer surface of the metal shell 1, begin to function. The waste and chips generated during drilling are thrown into the chip removal grooves 3 by the centrifugal force of the high-speed rotation of the metal shell 1, and then discharged from the drilling area, avoiding the accumulation of waste that affects the drilling effect and efficiency. Several oblique tooth grooves 4, which are inclined at a 30° angle to the axis of the metal shell 1 and arranged in a circular array, are opened at the lower end of the metal shell 1. The multiple oblique tooth grooves 4 increase the friction between the metal shell 1 and the material, so that the metal shell 1 can cut the material more stably during rotation, improving the accuracy and quality of the hole opening. In addition, the 0.3mm thick diamond coating 5 is fixedly connected to the lower part of the outer surface of the metal shell 1, which further enhances the cutting ability of the metal shell 1, making it easier to open holes in materials with high hardness such as ceramic tiles, marble, and glass. At this time, the waste remaining in the metal shell 1 is automatically discharged outward through the chip removal grooves 3 under the action of centrifugal force and the thrust generated by the return of the spring 11, completing the entire hole opening and chip removal process.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable, perforated fragment ejector capable of high-speed rotation, comprising a metal housing (1), characterized in that: The outer surface of the metal shell (1) has six chip removal grooves (3). The upper round shell (2) is fixedly connected to the middle of the upper end of the metal shell (1). The right side of the outer surface of the upper round shell (2) has a first screw hole (9). The upper round shell (2) is internally threaded with a hole opener connecting rod (6). The right side of the outer surface of the hole opener connecting rod (6) has a second screw hole (12). The first screw hole (9) is internally threaded with a bolt (8). The lower end of the metal shell (1) has several oblique tooth grooves (4). The lower part of the outer surface of the metal shell (1) is fixedly connected with a diamond coating (5). The middle of the lower end of the hole opener connecting rod (6) is fixedly connected with a titanium-plated center drill (7). The middle of the upper shell wall of the metal shell (1) is fixedly connected with a bearing (10). A spring (11) is sleeved on the outside of the bearing (10).

2. A high speed spinable removable core flash ejector according to claim 1, wherein: The six chip removal grooves (3) are evenly distributed along the circumferential direction of the outer surface of the metal shell (1), and the groove depth of the chip removal grooves (3) is 8mm.

3. The high speed spinable removable core flash ejector of claim 1, wherein: The oblique tooth groove (4) is inclined at a 30° angle to the axis of the metal shell (1).

4. The high speed spinable removable core flash ejector of claim 1, wherein: Several oblique grooves (4) are arranged in a ring array at the lower end of the metal shell (1).

5. The high speed spinable removable core flash ejector of claim 1, wherein: The thickness of the diamond coating (5) is 0.3 mm.

6. The high speed spinable removable core flash ejector of claim 1, wherein: The length of the titanium-plated center drill (7) is 8 mm, and its axis is completely coincident with the axis of the hole opener connecting rod (6).

7. The high speed spinable removable core flash ejector of claim 1, wherein: The titanium-plated center drill (7) is located inside the spring (11).

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