Lengthened drill bit assembly

Abstract

The utility model relates to the technical field of drill bit assemblies, and discloses a lengthened drill bit assembly which comprises a drill bit, the whole drill bit is conical, a plurality of stepped chutes are formed in the outer wall face of the drill bit, a plurality of chip grooves are formed in the drill bit in a trisection mode, and a connecting rod is fixedly installed on the back side of the drill bit. An inserting groove is formed in the other end of the connecting rod, a lengthening rod is installed in the inserting groove in an inserted mode, the other end of the lengthening rod is installed in a connecting sleeve piece in an inserted mode, inserting grooves are formed in the two ends of the connecting sleeve piece, a limiting sleeve piece is installed between the connecting rod and the connecting sleeve piece in an inserted mode, and a connecting inserting piece is installed at the other end of the connecting sleeve piece in an inserted mode; by means of mutual matching of the structures, the length of the drill bit can be increased according to machining requirements during use, transmission of torque and axial force during rotation of the whole drill bit can be effectively guaranteed, and the novel drill bit is more convenient to use and more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bit assemblies, in particular to an extended drill bit assembly. Background Art

[0002] The drill assembly is a tool used for drilling and cutting in drilling operations. It is mainly composed of a drill bit, a holder, a connector and other parts. The drill bit is the core part of the drill assembly and is used for cutting and drilling. The holder is the part used to clamp the drill bit and is usually connected to the drill bit by bolts or other fasteners. The connector is the part that connects the drill assembly to the drilling rig or machine tool. It is usually a metal rod or tube, one end of which is connected to the holder and the other end is connected to the drive shaft of the drilling rig or machine tool. The connector should have sufficient rigidity and strength to ensure stable and reliable transmission of torque and axial force during drilling operations.

[0003] Most of the existing drill bit assemblies are relatively short and are generally only used for simple drilling and shallow hole processing. However, when through-hole processing and deeper grooving processing are required, the drill bit is not long enough, which makes it impossible to achieve the processing requirements. In order to solve the above problems and increase the length of the drill bit according to different processing requirements, so that it can be suitable for more diverse processing scenarios, we propose an extended drill bit assembly. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a lengthened drill bit assembly to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an extended drill bit assembly, comprising a drill bit, the drill bit being tapered as a whole, a plurality of stepped inclined grooves being provided on the outer wall surface of the drill bit, a plurality of chip removal grooves being provided on the drill bit in a three-part pattern, a connecting rod for connection being fixedly installed on the back side of the drill bit, an insertion groove for connection and extension being provided on the other end of the connecting rod, an extension rod being plugged and installed inside the insertion groove, a limiting short rod being fixedly installed on one end of the extension rod, and the other end of the extension rod being plugged and installed inside a connecting kit, insertion grooves being provided at both ends of the connecting kit, a limiting kit being plugged and installed between the connecting rod and the connecting kit, a connecting plug-in being plugged and installed on the other end of the connecting kit, and a connector for connection being plugged and installed on one side of the connecting plug-in.

[0008] Preferably, twisted chip removal twisting plates are fixedly mounted on the outer wall surface of the connecting rod at positions corresponding to the plurality of chip removal grooves.

[0009] Preferably, a limiting groove is provided on one side where the connecting rod is connected to the connecting kit, limiting plug rods are fixedly installed at the positions of the limiting grooves at both ends of the limiting kit, and connecting plug blocks are fixedly installed at the positions of the limiting kit corresponding to the insertion grooves provided on the connecting rod and the connecting kit.

[0010] Preferably, a limiting block for limiting and fixing is installed inside the insertion slot where the connecting kit is connected to the extension rod.

[0011] Preferably, the connecting plug-in is rectangular as a whole, and a limiting plug rod is fixedly installed at the position of the limiting groove corresponding to the side where the connecting plug-in is connected to the connecting kit, and insertion side rods that are plugged into the insertion groove are fixedly installed on both sides of the connecting plug-in, and the interior of the connecting plug-in is hollow.

[0012] Preferably, the connector is hexagonal as a whole, and one end of the connector connected to the connecting plug-in is provided with a fixing groove that fits with the connecting plug-in.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a lengthened drill bit assembly, which has the following beneficial effects:

[0015] 1. The extended drill assembly, through the setting of the chip removal twist plate, when performing deeper drilling work, the chips generated by drilling will gradually move backwards through the chip removal groove, and then be transported to the back side along the twisting of several chip removal twist plates. When in use, the chip removal length can be effectively extended to avoid the chips affecting the processing when drilling deep holes.

[0016] 2. The extended drill bit assembly, through the setting of the limit kit, after one end of the extension rod is inserted into the interior of the connecting rod along the insertion groove, one side of the limit kit can be plugged into one side of the connecting rod, and then the connecting kit is inserted into the other side of the limit kit along the extension rod. Through the mutual cooperation between the limit slot and the limit insertion rod, the connecting rod and the connecting kit are connected and limited at the same time, thereby better transmitting torque and axial force, which is convenient for use in drilling processing.

[0017] 3. The extended drill bit assembly, through the setting of the connecting plug-in, can be installed on one end of the connecting kit after the overall length of the drill bit is extended to the required length. The connection between the limiting groove, the limiting plug-in rod and the insertion side rod is used to strengthen the connection strength between the connecting plug-in and the connecting kit, thereby ensuring the transmission of torque and axial force when the drill bit as a whole rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0020] In the figure: 1. drill bit; 2. chip removal groove; 3. connecting rod; 4. insertion groove; 5. extension rod; 6. connection kit; 7. limit kit; 8. connection plug-in; 9. connector; 10. chip removal twist plate; 11. limit groove; 12. limit plug-in; 13. connection plug-in block; 14. limit block; 15. insertion side rod; 16. fixing groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 A lengthened drill bit assembly comprises a drill bit 1, which is tapered as a whole, and has a plurality of stepped inclined grooves on the outer wall of the drill bit 1, and a plurality of chip removal grooves 2 are formed on the drill bit 1 in a three-part pattern, and a connecting rod 3 for connection is fixedly installed on the back side of the drill bit 1, and an insertion groove 4 for connection and extension is formed at the other end of the connecting rod 3, and an extension rod 5 is inserted and installed inside the insertion groove 4, and a limiting short rod is fixedly installed at one end of the extension rod 5, and the other end of the extension rod 5 is inserted and installed inside a connecting kit 6, and both ends of the connecting kit 6 are provided with insertion grooves 4, and a limiting kit 7 is inserted and installed between the connecting rod 3 and the connecting kit 6, and a connecting plug-in 8 is inserted and installed at the other end of the connecting kit 6, and a connector 9 for connection is inserted and installed on one side of the connecting plug-in 8.

[0023] Furthermore, twisted chip removal twist plates 10 are fixedly installed on the outer wall surface of the connecting rod 3 at positions corresponding to the several chip removal grooves 2. Through the arrangement of the chip removal twist plates 10, when performing deeper drilling work, the chips generated by drilling will gradually move backwards through the chip removal grooves 2, and thus be transported to the back side along the twisting of the several chip removal twist plates 10. When in use, the chip removal length can be effectively extended to avoid the impact of chips on processing when drilling deep holes.

[0024] Furthermore, a limiting groove 11 is provided on one side where the connecting rod 3 is connected to the connecting kit 6, and limiting plug rods 12 are fixedly installed at the positions of the limiting grooves 11 at both ends of the limiting kit 7, and connecting plug blocks 13 are fixedly installed at the positions of the limiting kit 7 corresponding to the insertion grooves 4 provided on the connecting rod 3 and the connecting kit 6. Through the setting of the limiting kit 7, after one end of the extension rod 5 is inserted into the interior of the connecting rod 3 along the insertion groove 4, one side of the limiting kit 7 can be plugged into one side of the connecting rod 3, and then the connecting kit 6 is inserted into the other side of the limiting kit 7 along the extension rod 5. Through the mutual cooperation between the limiting groove 11 and the limiting plug rod 12, the connecting rod 3 and the connecting kit 6 are connected and limited at the same time, so as to better transmit torque and axial force, which is convenient for use during drilling processing.

[0025] Furthermore, a limiting block 14 for limiting and fixing is installed inside the insertion slot 4 where the connecting kit 6 and the extension rod 5 are connected.

[0026] Furthermore, the connecting plug-in 8 is rectangular as a whole, and a limiting rod 12 is fixedly installed at the position of the limiting groove 11 corresponding to the side where the connecting plug-in 8 is connected to the connecting kit 6, and insertion side rods 15 that are plugged into the insertion groove 4 are fixedly installed on both sides of the connecting plug-in 8. The interior of the connecting plug-in 8 is hollow. Through the setting of the connecting plug-in 8, after the overall length of the drill bit is extended to the required length, the connecting plug-in 8 can be plugged and installed at one end of the connecting kit 6. Through the connection between the limiting groove 11, the limiting rod 12 and the insertion side rod 15, the connection strength between the connecting plug-in 8 and the connecting kit 6 is strengthened, thereby ensuring the transmission of torque and axial force when the drill bit rotates as a whole.

[0027] Furthermore, the connector 9 is hexagonal as a whole, and one end of the connector 9 connected to the connecting plug-in 8 is provided with a fixing groove 16 that matches the connecting plug-in 8. By setting the fixing groove 16 opened inside the connector 9, the connector 9 is plugged and installed on one end of the connecting plug-in 8 and the connecting kit 6, so that the three are connected as a whole, which can effectively ensure the connection strength after lengthening, and the hexagonal connector 9 is suitable for the connection of a variety of punching equipment, and has a wider range of applications.

[0028] Instructions

[0029] When the drill bit needs to be lengthened, first install the extension rod 5 and insert one end of the limiting short rod into the insertion slot 4, then rotate it along the wire groove opened in the insertion slot 4, so that it is snap-fitted and installed at the bottom of the insertion slot 4, then plug one side of the limiting kit 7 with one side of the connecting rod 3, then insert the connecting kit 6 along the extension rod 5 into the other side of the limiting kit 7, through the mutual cooperation between the limiting slot 11 and the limiting plug rod 12, while connecting the connecting rod 3 and the connecting kit 6, they are limited, and then the connecting plug 8 is plugged and installed at one end of the connecting kit 6, through the limiting slot 11, the limiting plug rod 12 and the insert The connection between the side rods 15 strengthens the connection strength between the connecting plug-in 8 and the connecting kit 6, thereby ensuring the transmission of torque and axial force when the drill bit as a whole rotates. Finally, the connector 9 is plugged and installed on one end of the connecting plug-in 8 and the connecting kit 6, so that the three are connected as a whole, which can effectively ensure the connection strength after lengthening, and the hexagonal connector 9 is suitable for the connection of a variety of punching equipment, and has a wider range of applications. Through the mutual cooperation between the above-mentioned structures, the new model can lengthen the length of the drill bit according to processing requirements during use, and can effectively ensure the transmission of torque and axial force when the drill bit as a whole rotates, which is more convenient and practical.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extended drill bit assembly, comprising a drill bit (1), characterized in that: The drill bit (1) is tapered as a whole, and a plurality of stepped inclined grooves are provided on the outer wall surface of the drill bit (1). A plurality of chip removal grooves (2) are provided on the drill bit (1) in a trisection pattern. A connecting rod (3) for connection is fixedly mounted on the back side of the drill bit (1), and an insertion groove (4) for connection extension is provided at the other end of the connecting rod (3). An extension rod (5) is plugged and mounted inside the insertion groove (4). A limiting short rod is fixedly mounted on one end of the extension rod (5), and the other end of the extension rod (5) is plugged and mounted inside a connecting kit (6). Insertion grooves (4) are provided at both ends of the connecting kit (6). A limiting kit (7) is plugged and mounted between the connecting rod (3) and the connecting kit (6), and a connecting plug-in (8) is plugged and mounted on the other end of the connecting kit (6). A connector (9) for connection is plugged and mounted on one side of the connecting plug-in (8).

2. The extended drill bit assembly according to claim 1, characterized in that: Twisted chip removal twisting plates (10) are fixedly mounted on the outer wall surface of the connecting rod (3) at positions corresponding to the plurality of chip removal grooves (2).

3. The extended drill bit assembly according to claim 1, characterized in that: A limiting groove (11) is provided on one side where the connecting rod (3) is connected to the connecting kit (6), limiting plug rods (12) are fixedly installed at positions corresponding to the limiting grooves (11) at both ends of the limiting kit (7), and a connecting plug block (13) is fixedly installed at positions of the limiting kit (7) corresponding to the insertion grooves (4) provided on the connecting rod (3) and the connecting kit (6).

4. The extended drill bit assembly according to claim 1, characterized in that: A limiting block (14) for limiting and fixing is installed in the insertion slot (4) connecting the connecting kit (6) and the extension rod (5).

5. The extended drill bit assembly according to claim 1, characterized in that: The connecting plug-in (8) is rectangular in shape as a whole, and a limiting plug-in rod (12) is fixedly installed at a position corresponding to the limiting groove (11) on one side of the connecting plug-in (8) connected to the connecting kit (6), and insertion side rods (15) plugged into the insertion groove (4) are fixedly installed on both sides of the connecting plug-in (8), and the interior of the connecting plug-in (8) is hollow.

6. The extended drill bit assembly according to claim 1, characterized in that: The connector (9) is hexagonal in shape as a whole, and one end of the connector (9) connected to the connection plug-in (8) is provided with a fixing groove (16) that fits with the connection plug-in (8).

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