Combined type anti-fracture chamfering cutter

Abstract

The utility model discloses a combined type anti-fracture chamfering cutter. The drill comprises a drill body, a combined sleeving assembly arranged on the surface of the drill body and a sleeving rotating assembly arranged on the surface of the drill body, the combined sleeving assembly comprises sectioning planes arranged on the two sides of the surface of the drill body, inserting blocks are connected to the surfaces of the sectioning planes in a matched mode, a sleeve is movably connected to the surface of the drill body, and inserting grooves are formed in the two sides of the interior of the sleeve. Insertion blocks are connected into the insertion grooves in a matched mode, the drill body of the sleeve can be conveniently inserted and connected in an inserted mode through an inner cavity formed in the sleeve, the insertion grooves formed in the two sides of the interior of the inner cavity are connected with the insertion blocks of the sleeve, and the connection stability is improved; a plurality of first connecting holes formed in the surface of the inserting block are aligned with second connecting holes formed in the surface of the sleeve, bolts are screwed in the first connecting holes, stable combined connection is conducted on the drill body, and therefore when the anti-fracture chamfering cutter is used again, the connectivity of the whole anti-fracture chamfering cutter and the outside is high.

Description

Technical Field

[0001] This utility model relates to the technical field of chamfering tool equipment, specifically a combined anti-breakage chamfering tool. Background Technology

[0002] A countersunk drill, also known as a chamfering drill, is a type of drill used for countersunk conical holes. It can be used to deburr, chamfer, and create countersunk recesses at the hole opening. However, a guide hole is required for subsequent processing. The conical hole is wider at the top and narrower at the bottom. To remove the sharp edges of the hole opening, the cylindrical countersunk drill's primary cutting edge is the end face cutting edge; the angle of the spiral groove is its rake angle. The countersunk drill has a guide post at the front end, with a diameter that fits tightly with the existing hole in the workpiece to ensure good centering and guidance. Inclined hole countersunk drills are generally of a single structure, consisting of a head and a shank. The shank is cylindrical for easy clamping. The head is conical with a through-hole. The beveled edge of the conical tip has a cutting edge for cutting. The through-hole is a chip removal hole; the chips are discharged upwards and outwards by centrifugal force after the rotational cutting action, preventing chip scratches on the workpiece surface that affect its appearance and quality.

[0003] A publicly available patent (publication number CN215468360U) discloses a chamfering cutter for threaded shanks that requires insert welding. The cutter includes a cutting tip, a first chamfering edge, a second chamfering edge, a cutting head, a wrench flat, a shank, and a third chamfering edge. The shank is located at the rear of the cutting head, and the wrench flat is located at the tail of the cutting head. The first, second, and third chamfering edges are alternately arranged at the front of the cutting head, with the cutting tip forming the front portion of each edge. Compared to existing technologies, this invention offers the following advantages: the chamfering cutter has a simple structure and is easy to use. The high-speed steel used in the insert-welded portion of the shank increases the tool's toughness, preventing threaded shank breakage and thus extending tool life. The insert-welded portion also reduces tool material costs. It effectively meets the demands of modern milling processes, ensures machining quality, and improves machining efficiency, making it suitable for widespread use.

[0004] However, there are some problems with the use of existing anti-breakage chamfering cutters: 1. The overall connection between the anti-breakage chamfering cutter and the external environment is low. Traditional clamping connection methods are prone to breakage during operation, resulting in overall economic losses and reduced work progress. There is a lack of a modular protective structure that is easy to install and disassemble; 2. The external connection points of the anti-breakage chamfering cutter are not convenient for adjusting the entire chamfering cutter. There is a lack of measures to improve work efficiency through modular connection. Utility Model Content

[0005] The purpose of this invention is to provide a combined anti-breakage chamfering tool to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a combined anti-breakage chamfering cutter, comprising a drill body, a combined sleeve assembly disposed on the surface of the drill body, and a sleeve rotation assembly disposed on the surface of the drill body;

[0007] The combined sleeve assembly includes cutting surfaces on both sides of the drill body surface, insert blocks are connected to the cutting surfaces, a sleeve is movably connected to the drill body surface, slots are provided on both sides inside the sleeve, insert blocks are connected to the slots, and the drill body is combined with the outside through the insert blocks.

[0008] The sleeve rotation assembly includes a fixed block disposed at the bottom of the casing. A placement groove is formed on the surface of the fixed block, and a placement block is connected inside the placement groove. A rotating shaft is connected to one end of the placement block, and the input end of the rotating shaft is connected to the output end of a motor. The combined drill body is rotated by the motor.

[0009] As a further embodiment of this utility model: the combined sleeve assembly further includes an inner cavity opened inside the casing, and the bottom of the drill body is fitted and connected inside the inner cavity.

[0010] As a further embodiment of this utility model: the surface of the insert block is provided with a first connection hole, and there are multiple first connection holes that are horizontally distributed on the surface of the insert block.

[0011] As a further embodiment of this utility model: the sleeve rotating assembly further includes a first insertion hole formed on the surface of the fixed block, the interior of the first insertion hole communicating with the interior of the placement groove.

[0012] As a further embodiment of this utility model: a second insertion hole is provided on the surface of the placement block, the interior of the second insertion hole is connected to the interior of the first insertion hole, and a pin is fitted inside the first insertion hole and the second insertion hole.

[0013] As a further embodiment of this utility model: a fixing plate is fixedly connected to the bottom of the sleeve, a fixing block is connected to one end of the fixing plate, and a second connecting hole is opened on the surface of the sleeve. There are multiple second connecting holes, and bolts are connected to the inside of the first connecting hole and the second connecting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When this utility model is assembled, the drill body can be inserted into the casing through the surface-fitting plug. The casing facilitates the overall insertion and connection of the drill body through the internal cavity. The slots on both sides of the internal cavity connect with the plug, increasing the connection stability. After the plug is inserted into the casing, the multiple first connection holes on the surface of the plug align with the second connection holes on the surface of the casing, and bolts are tightened in them to achieve a stable assembly connection of the drill body. Furthermore, when the anti-breakage chamfering cutter is used, its overall connection with the outside is high, reducing the breakage that is easily caused during operation by traditional clamping connection methods, thereby reducing overall economic losses and increasing work efficiency. It has a modular protective structure that is easy to install and disassemble.

[0016] After the modular connection is made, the second insertion hole on the surface of the placement block is aligned with the first insertion hole on the surface of the fixing block after the placement block is placed in the placement slot. A pin is inserted into the hole to fix it in place. At this time, the power output terminal of the motor is connected to the external power supply. The motor drives the rotating shaft connected to its output terminal to rotate. The rotating shaft drives the placement block and the fixing block to rotate, and finally the drill body rotates to work. In addition, when the anti-breakage chamfering cutter is used, its external connection points make it easy to use and adjust the chamfering cutter as a whole. It has a measure to improve work efficiency after modular connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the sleeve according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the sleeve according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the motor structure according to an embodiment of the present utility model.

[0021] In the figure: 1. Drill body; 201. Cutting surface; 202. Insertion block; 203. First connecting hole; 204. Sleeve; 205. Inner cavity; 206. Slot; 3. Second connecting hole; 4. Bolt; 5. Fixing plate; 601. Fixing block; 602. Placement slot; 603. First insertion hole; 604. Motor; 605. Shaft; 606. Placement block; 607. Second insertion hole; 608. Pin. Detailed Implementation

[0022] To facilitate the solution of the problem, this utility model provides a combined anti-breakage chamfering tool. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example 1

[0023] like Figures 1 to 4 As shown, this embodiment provides a combined anti-breakage chamfering tool, including a drill body 1, a combined sleeve assembly disposed on the surface of the drill body 1, and a sleeve rotation assembly disposed on the surface of the drill body 1. The combined sleeve assembly includes cutting surfaces 201 formed on both sides of the surface of the drill body 1. Insert blocks 202 are connected to the surface of the cutting surfaces 201. A sleeve 204 is movably connected to the surface of the drill body 1. Slots 206 are formed on both sides inside the sleeve 204. Insert blocks 202 are connected to the inside of the slots 206. The drill body 1 is combined with the outside through the insert blocks 202. The sleeve rotation assembly includes a fixing block 601 disposed at the bottom of the sleeve 204. A placement groove 602 is formed on the surface of the fixing block 601. Placement blocks 606 are connected to the inside of the placement groove 602. A rotating shaft 605 is connected to one end of the placement block 606. The input end of the rotating shaft 605 is connected to the output end of a motor 604. The combined drill body 1 is rotated by the motor 604. Example 2

[0024] In addition to all the technical features in Embodiment 1, this embodiment also includes: the combined sleeve assembly further includes an inner cavity 205 opened inside the sleeve 204, the bottom of the drill body 1 is fitted and connected inside the inner cavity 205, and the surface of the insert block 202 is provided with a first connection hole 203. There are multiple first connection holes 203 and they are horizontally distributed on the surface of the insert block 202. The inner cavity 205 enhances the overall combined connectivity, making it easier to install and assemble the drill body 1. The first connection hole 203 and the second connection hole 3 increase the overall connection stability.

[0025] Furthermore, the sleeve rotation assembly also includes a first insertion hole 603 formed on the surface of the fixed block 601, the interior of the first insertion hole 603 communicating with the interior of the placement groove 602. A second insertion hole 607 is formed on the surface of the placement block 606, the interior of the second insertion hole 607 communicating with the interior of the first insertion hole 603. A pin 608 is connected to the interior of the first insertion hole 603 and the second insertion hole 607. The connection between the pin 608 and the first insertion hole 603 increases the connectivity between the connecting block and the placement block 606, and makes it easier to disassemble and install.

[0026] Furthermore, a fixing plate 5 is fixedly connected to the bottom of the sleeve 204, and a fixing block 601 is connected to one end of the fixing plate 5. A second connecting hole 3 is opened on the surface of the sleeve 204. There are multiple second connecting holes 3. Bolts 4 are connected to the inside of the first connecting hole 203 and the second connecting hole 3. The fixing block 601 is connected through the fixing plate 5, which increases the convenience of connection.

[0027] Working principle: The inner cavity 205 enhances the overall assembly and connection, facilitating the installation and assembly of the drill body 1. The first connecting hole 203 and the second connecting hole 3 increase the overall connection stability. The drill body 1 can be inserted into the sleeve 204 via the surface-fitting insert 202. The inner cavity 205 within the sleeve 204 facilitates the overall insertion and connection of the drill body 1. Slots 206 on both sides of the inner cavity 205 connect with the insert 202, increasing connection stability. The insert 202 is inserted into the sleeve 204. Afterwards, the multiple first connecting holes 203 on the surface of the insert block 202 are aligned with the second connecting holes 3 on the surface of the sleeve 204, and bolts 4 are tightened in them to form a stable combined connection of the drill body 1. This ensures that the anti-breakage chamfering cutter has high overall connectivity with the external components, reducing the likelihood of breakage during operation caused by traditional clamping connection methods, thereby reducing overall economic losses and increasing work efficiency. The connection between the first insert hole 603 and the second insert hole 607 and the pin 608 further enhances the connection between the connecting block and the release mechanism. The connection between the placement blocks 606 is improved, and it is easy to disassemble and install. It has a modular protective structure that facilitates installation and disassembly. The motor 604 connects to the placement block 606 via a shaft 605, which is fitted into a placement groove 602 on the surface of the fixed block 601. This allows the placement block 606 to be inserted into the placement groove 602, increasing its overall connectivity. After the placement block 606 is placed in the placement groove 602, the second insertion hole 607 on the surface of the placement block 606 connects with the first insertion hole on the surface of the fixed block 601. The holes 603 are aligned, and the pins 608 are inserted to fix them. At this time, the power output terminal of the motor 604 is connected by an external power source. The motor 604 drives the rotating shaft 605 connected to its output terminal to rotate. The rotating shaft 605 drives the placement block 606 and the fixing block 601 to rotate, and finally makes the drill body 1 rotate. Then, when the anti-breakage chamfering cutter is used, its external connection points make it easy to use and adjust the chamfering cutter as a whole. It has a measure to improve work efficiency after combination connection.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined anti-breakage chamfering tool, characterized in that: It includes a drill body (1), a combined sleeve assembly disposed on the surface of the drill body (1), and a sleeve rotation assembly disposed on the surface of the drill body (1); The combined socket assembly includes a cutting surface (201) on both sides of the surface of the drill body (1), a plug (202) is connected to the surface of the cutting surface (201), a sleeve (204) is movably connected to the surface of the drill body (1), and slots (206) are provided on both sides inside the sleeve (204). The plug (202) is connected to the inside of the slot (206), and the drill body (1) is combined with the outside through the plug (202). The sleeve rotating assembly includes a fixing block (601) disposed at the bottom of the sleeve (204). The surface of the fixing block (601) is provided with a placement groove (602). A placement block (606) is connected inside the placement groove (602). A rotating shaft (605) is connected to one end of the placement block (606). The input end of the rotating shaft (605) is connected to the output end of a motor (604). The combined drill body (1) is rotated by the motor (604).

2. The combined anti-breakage chamfering tool according to claim 1, characterized in that: The combined socket assembly also includes an inner cavity (205) opened inside the casing (204), and the bottom of the drill body (1) is fitted and connected inside the inner cavity (205).

3. The combined anti-breakage chamfering tool according to claim 1, characterized in that: The insert (202) has a first connection hole (203) on its surface. There are multiple first connection holes (203) and they are horizontally distributed on the surface of the insert (202).

4. A combined anti-breakage chamfering tool according to claim 1, characterized in that: The sleeve rotating assembly also includes a first insertion hole (603) opened on the surface of the fixed block (601), the interior of the first insertion hole (603) communicating with the interior of the placement groove (602).

5. A combined anti-breakage chamfering tool according to claim 4, characterized in that: The surface of the placement block (606) is provided with a second insertion hole (607), the interior of the second insertion hole (607) is connected to the interior of the first insertion hole (603), and the interiors of the first insertion hole (603) and the second insertion hole (607) are connected with a pin (608).

6. A combined anti-breakage chamfering tool according to claim 3, characterized in that: The bottom of the sleeve (204) is fixedly connected to a fixing plate (5), and a fixing block (601) is connected to one end of the fixing plate (5). A second connecting hole (3) is opened on the surface of the sleeve (204). There are multiple second connecting holes (3). Bolts (4) are connected to the inside of the first connecting hole (203) and the second connecting hole (3).

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