Multi-size tapper

Abstract

The utility model discloses a multi-size tapper, and relates to the technical field of tappers, the top of a drill bit main body is provided with a chambering stone pier, the top of the chambering stone pier is provided with a tapping ring, the tapping ring is fixedly connected with the chambering stone pier, the bottom of the drill bit main body is provided with a fixing groove, and the fixing groove is connected with the drill bit main body; the bottom of the fixing groove is connected with a connecting column, the connecting column is connected with drilling machine equipment through a connecting clamping block, and the drill bit body or the connecting clamping block is connected with a limiting mechanism. By arranging the reaming stone pier at the bottom of the trepanning ring, when workpieces of different sizes need to be machined, holes machined by the trepanning ring can be reamed through the reaming stone pier, so that when the trepanning device is used, the trepanning ring does not need to be replaced, the use efficiency of the trepanning device is improved, and by arranging the limiting mechanism, the machining efficiency is improved. And when the equipment is used, the equipment can be fixed through the limiting mechanism, so that the stability of the equipment during working is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole openers, in particular to a multi-size hole opener. Background Art

[0002] A hole opener, also called a hole saw or hole saw, refers to a special circular saw used for cutting circular holes in modern industry or engineering. It is simple and flexible to operate, easy to carry, safe, and widely used. When installed on an ordinary electric drill, the hole opener can easily cut circular holes, square holes, triangular holes, straight lines, and curves on any curved surface, such as a flat surface, a spherical surface, or other curved surface, on various plates such as copper, iron, stainless steel, and plexiglass. The hole opener has different apertures and specifications according to the size of the circle. At the same time, according to the different depths of the hole, it is divided into two categories: standard hole openers and deep-load hole openers. According to the material classification: bimetallic hole openers, carbide hole openers, and diamond hole openers. Different materials are used to cut different materials. The most commonly used is the bimetallic hole opener, which is installed on power tools such as hand drills, impact drills, and radial drills. However, the existing hole openers have some shortcomings, such as:

[0003] Publication No.: CN110424901B is a hole opener, which can change the length of the hole opener according to the hole opening depth, and has the advantage of high concentricity of docking, so that the hole opener can be more accurate when opening holes. However, when the hole opener needs to open holes for several workpieces of different sizes, it is often necessary to replace the hole opening ring for operation, which greatly reduces the use efficiency of the device;

[0004] Therefore, we propose a multi-size hole opener to solve the above-mentioned problem that the hole opener needs to replace the hole opening ring for operation when processing workpieces of different sizes. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-size hole opener to solve the problem raised in the above background technology that most hole openers on the market currently need to replace the hole opening ring for operation when they need to open holes in several workpieces of different sizes, which greatly reduces the use efficiency of the equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-size hole opener, comprising a drill bit body, a hole-expanding stone pier connected to the drill bit body, a hole-expanding stone pier is provided on the top of the drill bit body, and a hole-expanding ring is provided on the top of the hole-expanding stone pier, and the hole-expanding ring and the hole-expanding stone pier are fixedly connected, a fixing groove is provided at the bottom of the drill bit body, and the fixing groove is connected to the drill bit body;

[0007] The bottom of the fixing groove is connected to the connecting column, and the connecting column is connected to the drilling equipment through the connecting block, and the drill body or the connecting block is connected to the limiting mechanism.

[0008] By arranging a hole-expanding stone pier at the bottom of the hole-opening ring, the device can use the hole-expanding stone pier to expand the hole processed by the hole-opening ring when it needs to process workpieces of different sizes, so that the hole-opening ring does not need to be replaced when the hole opener is in use, thereby increasing the use efficiency of the device, and by setting the limiting mechanism, the device can be fixed by the limiting mechanism when in use, thereby increasing the stability of the device when working.

[0009] As a preferred technical solution of the utility model, the limiting mechanism includes a fixing plate, and the fixing plate is located outside the drill body, and a plurality of limiting holes are provided inside the fixing plate, and the fixing plate is connected to the positioning rod through the limiting holes.

[0010] By adopting the above technical solution, the drill body can be limited by the fixing plate, and then fixed in the limiting hole by the positioning rod, and connected to the workpiece through the top of the positioning rod, so that the fixing plate is fixed under the drive of the positioning rod, thereby the fixing plate can fix the drill body.

[0011] As a preferred technical solution of the utility model, a thread can be provided on the outer side of the positioning rod to engage with the limiting hole, and the top of the positioning rod is connected to the rubber protective sleeve.

[0012] The adoption of the above technical solution can make it more convenient to connect and fix the positioning rod to the limiting hole, thereby increasing the adjustability of the device.

[0013] As the preferred technical solution of the utility model, the limiting mechanism includes a fixed bearing, and the fixed bearing and the connecting block form a rotational connection, and two connecting shafts are provided on the outside of the fixed bearing, the connecting shafts are connected to the fixed rod, and a spring rod is provided inside the fixed rod.

[0014] The above technical solution can be used to rotationally connect the fixed bearing with the outer side of the connecting block, and then fit the workpiece through the spring rod, so that the spring rod and the fixed rod support the fixed bearing, so that the fixed bearing can limit and fix the connecting block.

[0015] As a preferred technical solution of the utility model, the spring rod is connected to the inside of the fixing rod, and the top of the spring rod is connected to the fitting pad, and the top of the fitting pad is sticky.

[0016] The adoption of the above technical solution can make the top of the spring rod more stable when it is fitted on the workpiece, thereby increasing the stability of the device during operation.

[0017] As a preferred technical solution of the utility model, a running-in surface is provided on the outer side of the reaming stone pier, and the running-in surface is connected to the surface of the reaming stone pier, and the surface of the running-in surface has slots.

[0018] The adoption of the above technical solution enables the expansion stone pier to process the workpiece hole through the running-in surface when expanding the hole, thereby avoiding damage to the expansion stone pier and increasing the protectiveness of the equipment.

[0019] As a preferred technical solution of the utility model, the top of the running-in surface is fitted with the perforated ring, and the outer side of the top of the perforated ring is connected to a plurality of perforated grooves.

[0020] The above technical solution enables the hole-punching ring to discharge the debris from the grinding part of the workpiece through the hole-punching groove during the hole-punching process, thereby avoiding the accumulation of debris inside the hole-punching ring.

[0021] Compared with the prior art, the utility model has the following beneficial effects: by arranging a hole-expanding stone pier at the bottom of the hole-opening ring, the device can expand the hole processed by the hole-opening ring through the hole-expanding stone pier when processing workpieces of different sizes, so that the hole-opening device does not need to replace the hole-opening ring when in use, thereby increasing the use efficiency of the device, and by setting the limiting mechanism, the device can be fixed by the limiting mechanism when in use, thereby increasing the stability of the device when working; the specific operation is as follows:

[0022] 1. The drill body is limited by the fixing plate, and then fixed in the limiting hole by the positioning rod, and the top of the positioning rod is connected to the workpiece, so that the fixing plate is fixed under the drive of the positioning rod, so that the fixing plate can fix the drill body;

[0023] 2. The fixed bearing is rotatably connected to the outer side of the connecting block, and then the spring rod is fitted to the workpiece, so that the spring rod and the fixed rod support the fixed bearing to fix it, so that the fixed bearing can limit and fix the connecting block;

[0024] By arranging a running-in surface on the surface of the reaming stone pier, the reaming stone pier can process the hole of the workpiece through the running-in surface when enlarging the hole, thereby avoiding damage to the reaming stone pier and increasing the protectiveness of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0026] Figure 2 This is a front view structural schematic diagram of the utility model;

[0027] Figure 3This is a schematic diagram of the structure of the utility model when viewed from above;

[0028] Figure 4 This is a schematic diagram of the vertical plan view of the utility model;

[0029] Figure 5 This is a front view structural diagram of Embodiment 2 of the present utility model;

[0030] Figure 6 This is a schematic diagram of the vertical plan structure of Example 2 of the utility model.

[0031] In the figure: 1. drill bit body; 2. fixing plate; 3. expansion stone pier; 4. running-in surface; 5. hole opening ring; 6. hole opening groove; 7. limit hole; 8. positioning rod; 9. rubber protective sleeve; 10. connecting column; 11. fixing groove; 12. connecting block; 13. fixed bearing; 14. connecting shaft; 15. fixing rod; 16. spring rod; 17. fitting pad. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Embodiment 1:

[0034] In order to solve the problem that the drill bit of the prior art hole opener needs to be frequently replaced when drilling holes of different sizes, the following solution is disclosed. Figure 1-4 The utility model provides a technical solution: a multi-size hole opener, comprising a drill bit body 1, a hole-expanding pier 3 connected to the drill bit body 1, a hole-expanding pier 3 is provided on the top of the drill bit body 1, and a hole-expanding ring 5 is provided on the top of the hole-expanding pier 3, and the hole-expanding ring 5 is fixedly connected to the hole-expanding pier 3, and a fixing groove 11 is provided at the bottom of the drill bit body 1, and the fixing groove 11 is connected to the drill bit body 1;

[0035] The bottom of the fixing groove 11 is connected to the connecting column 10, and the connecting column 10 is connected to the drilling equipment through the connecting block 12, and the drill body 1 or the connecting block 12 is connected to the limiting mechanism;

[0036] First, connect the drill rig through the connecting block 12, and then start the drill rig, so that the drill rig drives the connecting block 12 to rotate, so that the connecting block 12 drives the connecting column 10, the drill body 1, the reaming stone pier 3 and the hole-opening ring 5 to rotate, so that the drill body 1 and other components perform hole-opening work on the workpiece. When it is necessary to perform hole-opening work on holes of different sizes, the drill body 1, the reaming stone pier 3 and the hole-opening ring 5 can be driven to move, so that the reaming stone pier 3 fits with the surface of the workpiece, so as to perform hole-opening work on the workpiece;

[0037] The limiting mechanism includes a fixing plate 2, and the fixing plate 2 is located outside the drill bit body 1, and a plurality of limiting holes 7 are arranged inside the fixing plate 2, and the fixing plate 2 is connected to the positioning rod 8 through the limiting holes 7; the outer side of the positioning rod 8 can be provided with a thread to engage with the limiting hole 7, and the top of the positioning rod 8 is connected to the rubber protective sleeve 9; the outer side of the reaming stone pier 3 is provided with a running-in surface 4, and the running-in surface 4 is connected to the surface of the reaming stone pier 3, and the surface of the running-in surface 4 has slots; the top of the running-in surface 4 is fitted with the opening ring 5, and the outer side of the top of the opening ring 5 is connected to a plurality of opening slots 6;

[0038] When the drill body 1 and other workpieces are working, the positioning rod 8 can drive the rubber protective sleeve 9 to fit with the surface of the workpiece, and then fit with the outer side of the drill body 1 through the fixing plate 2, so as to limit the drill body 1 and other components.

[0039] Embodiment 2:

[0040] In this embodiment, another limiting fixing method is disclosed, which is different from the first embodiment. Figure 5-6 As shown, the difference between this embodiment and the first embodiment is that: the limiting mechanism includes a fixed bearing 13, and the fixed bearing 13 is rotatably connected with the connecting block 12, and two connecting shafts 14 are provided on the outside of the fixed bearing 13, and the connecting shaft 14 is connected with the fixed rod 15, and a spring rod 16 is provided inside the fixed rod 15;

[0041] The spring rod 16 is connected to the inside of the fixed rod 15, and the top of the spring rod 16 is connected to the fitting pad 17, and the top of the fitting pad 17 is sticky; when the drill body 1 and other workpieces are working, they can be connected to the connecting block 12 through the fixed bearing 13, and then the fitting pad 17 is driven to move by the spring rod 16, so that the fitting pad 17 fits with the surface of the workpiece, so that the spring rod 16 and the fixed rod 15 support the fixed bearing 13, so that the fixed bearing 13 limits the connecting block 12.

[0042] Working principle: When using a multi-size hole opener, first connect it to the drill rig through the connecting block 12, then start the drill rig, so that the drill rig drives the connecting block 12 to rotate, so that the connecting block 12 drives the connecting column 10, the drill body 1, the reaming stone pier 3 and the hole opening ring 5 to rotate, so that the drill body 1 and other components perform hole opening work on the workpiece. When it is necessary to open holes of different sizes, the drill body 1, the reaming stone pier 3 and the hole opening ring 5 can be driven to move, so that the reaming stone pier 3 fits with the surface of the workpiece, so as to expand the hole on the workpiece;

[0043] When the drill body 1 and other workpieces are working, the positioning rod 8 can drive the rubber protective sleeve 9 to fit with the surface of the workpiece, and then fit with the outer side of the drill body 1 through the fixing plate 2, so as to limit the drill body 1 and other components.

[0044] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-size hole opener, comprising a drill bit body (1), and a hole-enlarging stone pier (3) connected to the drill bit body (1), characterized in that: The top of the drill bit body (1) is provided with a hole-expanding stone pier (3), and the top of the hole-expanding stone pier (3) is provided with a hole-opening ring (5), and the hole-opening ring (5) and the hole-expanding stone pier (3) are fixedly connected, and the bottom of the drill bit body (1) is provided with a fixing groove (11), and the fixing groove (11) is connected to the drill bit body (1); The bottom of the fixing groove (11) is connected to the connecting column (10), and the connecting column (10) is connected to the drilling equipment via the connecting block (12), and the drill body (1) or the connecting block (12) is connected to the limiting mechanism.

2. The multi-size hole opener according to claim 1, characterized in that: The limiting mechanism comprises a fixing plate (2), wherein the fixing plate (2) is located outside the drill body (1), and a plurality of limiting holes (7) are provided inside the fixing plate (2), and the fixing plate (2) is connected to the positioning rod (8) via the limiting holes (7).

3. The multi-size hole opener according to claim 2, characterized in that: The outer side of the positioning rod (8) may be provided with a thread to engage with the limiting hole (7), and the top of the positioning rod (8) is connected to the rubber protective sleeve (9).

4. The multi-size hole opener according to claim 1, characterized in that: The limiting mechanism comprises a fixed bearing (13), wherein the fixed bearing (13) and the connecting block (12) are rotatably connected, and two connecting shafts (14) are arranged outside the fixed bearing (13), wherein the connecting shafts (14) are connected to a fixed rod (15), and a spring rod (16) is arranged inside the fixed rod (15).

5. The multi-size hole opener according to claim 4, characterized in that: The spring rod (16) is connected to the inside of the fixing rod (15), and the top of the spring rod (16) is connected to the fitting pad (17), and the top of the fitting pad (17) is sticky.

6. The multi-size hole opener according to claim 1, characterized in that: The outer side of the hole-enlarging stone pier (3) is provided with a running-in surface (4), and the running-in surface (4) is connected to the surface of the hole-enlarging stone pier (3), and the surface of the running-in surface (4) is provided with slots.

7. The multi-size hole opener according to claim 6, characterized in that: The top of the running-in surface (4) is fitted with the perforated ring (5), and the outer side of the top of the perforated ring (5) is connected to a plurality of perforated grooves (6).

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