Novel alloy step drill

Abstract

The utility model discloses a novel alloy step drill which comprises a drill rod, a step head and a drill bit. The fixing mechanism is arranged between the drill rod and the step head and used for fixing the drill rod and the step head; a locking mechanism; the connecting piece is arranged between the drill rod and the step head and used for improving the connecting strength between the drill rod and the step head; the connecting mechanism is arranged between the step head and the drill bit and used for fixing the drill bit to the step head, the structure is reasonable, replacement of parts is convenient, the maintenance cost can be effectively reduced, and therefore the use requirement can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to step drill equipment technical field, concretely is a new alloy step drill. BACKGROUND

[0002] The step drill is also named as step drill or pagoda drill, is mainly used in the thin steel sheet drilling processing within 3mm, a drill bit can replace many drill bits and be used, according to the need processing different diameter holes, and can realize big hole one-time processing, need not to replace drill bit and punch positioning hole etc., currently integral step drill adopts CBN full grinding, and the material quality is mainly high-speed steel, hard alloy etc., and the machining precision requirement is high, according to the different processing conditions, surface coating treatment can be carried out, to prolong the service life of the tool, enhance the tool durability, the product can be used in automobile processing, aerospace, sheet metal processing, electrical installation maintenance and other industries, and the product is convenient to carry and can satisfy the high-altitude operation cooperation with electric drill and other tools.

[0003] For example, the utility model patent with the authorization announcement No. CN210188599U discloses a kind of alloy step drill head for easy installation, and the fastening screw of the drill head is hand screw, hand screw is designed specially for the convenience of hand screw operation, and hand screw can be tightened without additional tools, to facilitate installation.

[0004] However, the drill head is an integrated structure, and when the drill head part is damaged, the whole drill head needs to be replaced, which increases the maintenance cost and reduces the application range of the device, and cannot well meet the use requirement. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a new alloy step drill to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme.

[0007] A new alloy step drill, comprising: drill rod, step head and drill bit;Fixed mechanism, set between drill rod and step head, for fixing drill rod and step head;Locking mechanism;Set between drill rod and step head, for improving the connection strength between drill rod and step head;Connecting mechanism, set between step head and drill bit, for fixing drill bit on step head.

[0008] As a preferred scheme, the fixed mechanism includes a fixed plug extending from the lower end of the drill rod, the fixed plug is inserted into the upper end of the step head, and a fixed sleeve is provided at the position corresponding to the fixed plug on the upper end of the step head, a pair of fixed holes are formed on the fixed sleeve;

[0009] A pair of fixed slots are formed on the corresponding positions of the fixed plug, a fixed end cover is installed on each of the fixed slots, a fixed pin is slidingly installed in each of the fixed slots, the end of the fixed pin penetrates through the fixed end cover and extends into the corresponding fixed hole, and a fixed spring is installed in the fixed slot, and the two ends of the fixed spring are respectively in abutting connection with the corresponding side of the fixed slot and the fixed pin.

[0010] As a preferred scheme, the fixed pin is of a stepped type.

[0011] As a preferred scheme, the upper end of the fixed plug is further provided with a fixed cover plate, and the fixed cover plate is buckled on the fixed sleeve.

[0012] As a preferred scheme, the locking mechanism comprises a locking socket formed on the fixed cover plate, a locking block installed on the upper end of the fixed sleeve and corresponding to the locking socket, a locking hole formed on the locking block, a locking pin inserted in the locking hole, and a locking bolt threadedly screwed on the upper end of the locking block and inserted on the locking pin.

[0013] As a preferred scheme, the connecting mechanism comprises a sinking groove formed on the lower end of the stepped head, a connecting column installed in the sinking groove, and a drill head sleeved on the connecting column and fixedly connected with the stepped head through a connecting bolt.

[0014] As a preferred scheme, the stepped head is provided with a chip removal groove.

[0015] As a preferred scheme, the drill rod, the stepped head and the drill head are made of an alloy material.

[0016] Compared with the prior art, the beneficial effects of the novel alloy stepped drill are as follows: the drill head is fixed on the lower end of the stepped head through the connecting mechanism and can be disassembled, the drill rod and the stepped head are fixed through the fixing mechanism cooperating with the locking mechanism and can also be disassembled, the replacement of subsequent parts is facilitated, the subsequent maintenance cost is effectively reduced, and the use requirement is better met. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 FIG. 1 is a schematic diagram of the overall three-dimensional structure of a novel alloy stepped drill;

[0018] Fig. 2 FIG. 2 is a schematic diagram of the sectional structure of a novel alloy stepped drill;

[0019] Fig. 3 FIG. 3 is a schematic diagram of the three-dimensional structure of the drill rod position of a novel alloy stepped drill;

[0020] Fig. 4It is a schematic diagram of an explosion structure at a position of a drill rod of a new alloy stepped drill;

[0021] Fig. 5 It is a schematic diagram of an explosion structure at a position of a stepped head of a new alloy stepped drill from a first perspective;

[0022] Fig. 6 It is a schematic diagram of an explosion structure at a position of a stepped head of a new alloy stepped drill from a second perspective.

[0023] In the figure: 1, drill rod; 2, stepped head; 21, chip flute; 3, drill bit; 31, connecting column; 32, connecting bolt; 4, fixing mechanism; 41, fixing block; 42, fixing groove; 43, fixing end cover; 44, fixing pin; 45, fixing spring; 46, fixing sleeve; 47, fixing hole; 48, fixing cover plate; 5, locking mechanism; 51, locking socket; 52, locking block; 53, locking port; 54, locking pin; 55, locking bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment: Please refer to Figs. 1-6 A new alloy stepped drill, comprising: a drill rod 1, a stepped head 2 and a drill bit 3; a fixing mechanism 4 arranged between the drill rod 1 and the stepped head 2, used for fixing the drill rod 1 and the stepped head 2; a locking mechanism 5 arranged between the drill rod 1 and the stepped head 2, used for improving the connection strength between the drill rod 1 and the stepped head 2; a connecting mechanism arranged between the stepped head 2 and the drill bit 3, used for fixing the drill bit 3 on the stepped head 2, the stepped head 2 is provided with a chip flute 21, and the drill rod 1, the stepped head 2 and the drill bit 3 are all made of alloy material.

[0026] The working principle of the present application is that the drill bit 3 is fixed at the lower end of the stepped head 2 through the connecting mechanism, can be disassembled, the drill rod 1 and the stepped head 2 are fixed through the fixing mechanism 4 cooperating with the locking mechanism 5, and can also be disassembled, which facilitates the replacement of subsequent parts and effectively reduces the subsequent maintenance cost, thereby better meeting the use requirements.

[0027] As a further scheme, the fixing mechanism 4 comprises a fixing block 41 extending from the lower end of the drill rod 1, the fixing block 41 is inserted on the upper end of the stepped head 2, and a fixing sleeve 46 is further arranged on the upper end of the stepped head 2 corresponding to the position of the fixing block 41, and a pair of fixing holes 47 are formed on the fixing sleeve 46;

[0028] A pair of fixing grooves 42 are formed on the fixing block 41 corresponding to the positions, a fixing end cover 43 is arranged on each of the fixing grooves 42, a fixing pin 44 is slidingly arranged in each of the fixing grooves 42, the end of the fixing pin 44 penetrates through the fixing end cover 43 and extends into the corresponding fixing hole 47, a fixing spring 45 is further arranged in the fixing groove 42, and the two ends of the fixing spring 45 are respectively in abutting connection with the corresponding sides of the fixing groove 42 and the fixing pin 44, in this embodiment, the fixing pin 44 is in a stepped type, and by arranging the fixing pin 44 in the stepped type and cooperating with the fixing end cover 43, the fixing pin 44 can be effectively prevented from slipping out of the fixing groove 42, and a fixing cover plate 48 is further arranged on the upper end of the fixing block 41, and the fixing cover plate 48 is buckled on the fixing sleeve 46.

[0029] The working principle of the fixing mechanism 4 is that when fixing, the fixing pin 44 is moved to be shrunk into the fixing groove 42, at this time, the fixing spring 45 is compressed, then the fixing block 41 is inserted on the stepped head 2, and the fixing pin 44 is moved to the fixing hole 47, the fixing spring 45 is reset, the fixing pin 44 is moved outward, and thus the fixing pin 44 is inserted into the fixing hole 47, the preliminary fixing of the drill rod 1 and the stepped head 2 is completed, the operation is simple, and the disassembly is convenient.

[0030] As a further scheme, the locking mechanism 5 comprises a locking socket 51 formed on the fixing cover plate 48, a locking block 52 is arranged on the upper end of the fixing sleeve 46 corresponding to the position of the locking socket 51, a locking hole 53 is further formed on the locking block 52, a locking pin 54 is inserted in the locking hole 53, and a locking bolt 55 is threadedly screwed on the upper end of the locking block 52, and the lower end of the locking bolt 55 is inserted in the locking pin 54.

[0031] The working principle of the locking mechanism 5 is that when the fixing mechanism 4 is fixed, at this time, the locking block 52 on the upper end of the fixing sleeve 46 penetrates through the locking socket 51, then the locking pin 54 is inserted into the locking hole 53 on the locking block 52, and then the locking bolt 55 is screwed on the locking block 52, and the end of the locking bolt 55 is inserted into the locking pin 54, so that the further fixing is completed, and the connection strength of the drill rod 1 and the stepped head 2 can be effectively improved.

[0032] As a further scheme, the connecting mechanism comprises a sunken groove opened at the lower end of the stepped head 2, a connecting column 31 is installed in the sunken groove, the drill head 3 is sleeved on the connecting column 31, and the drill head 3 is fixedly connected with the stepped head 2 through a connecting bolt 32. In the embodiment, the connecting column 31 is a quadrangular prism, and a chamfer is arranged at the end of the connecting column 31, so that the drill head 3 is conveniently installed.

[0033] The working principle of the connecting mechanism is as follows: during connection, the drill head 3 is first sleeved on the connecting column 31, then the connecting bolt 32 is screwed in the sunken groove, the drill head 3 is fixed with the stepped head 2, and the drill head 3 can be disassembled; when the drill head 3 or the stepped head 2 is damaged, the corresponding part can be replaced, and the maintenance cost can be effectively reduced.

[0034] In the utility model, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom" and the like indicate the orientation or positional relationship shown based on the drawings, and are only the relationship words determined for the purpose of conveniently describing the structural relationship of the components or elements of the utility model, and cannot be understood as the limitation of the utility model to any component or element.

Claims

1. A new alloy step drill characterized in that, The utility model relates to a drill rod (1), a stepped head (2) and a drill bit (3), a fixing mechanism (4) is arranged between the drill rod (1) and the stepped head (2), and is used for fixing the drill rod (1) with the stepped head (2), a locking mechanism (5) is arranged between the drill rod (1) and the stepped head (2), and is used for improving the connecting strength between the drill rod (1) and the stepped head (2), a connecting mechanism is arranged between the stepped head (2) and the drill bit (3), and is used for fixing the drill bit (3) on the stepped head (2). The fixing mechanism (4) includes a fixing plug (41) extending from the lower end of the drill rod (1), the fixing plug (41) is inserted on the upper end of the stepped head (2), the upper end of the stepped head (2) is further provided with a fixing sleeve (46) corresponding to the position of the fixing plug (41), and a pair of fixing holes (47) are formed in the fixing sleeve (46). A pair of fixing grooves (42) are formed in the fixing plug (41) in a corresponding position, a fixing end cover (43) is mounted on each fixing groove (42), a fixing pin (44) is slidingly mounted in each fixing groove (42), the end of the fixing pin (44) penetrates through the fixing end cover (43) and extends into the corresponding fixing hole (47), and a fixing spring (45) is further mounted in the fixing groove (42), and the two ends of the fixing spring (45) are respectively in abutting connection with the corresponding side of the fixing groove (42) and the fixing pin (44). The fixing pin (44) is in a stepped type. A fixing cover plate (48) is further arranged on the upper end of the fixing plug (41), and the fixing cover plate (48) is buckled on the fixing sleeve (46).

2. A new alloy step drill as claimed in claim 1, wherein: The locking mechanism (5) includes a locking socket (51) formed in the fixing cover plate (48), a locking block (52) is mounted on the upper end of the fixing sleeve (46) corresponding to the position of the locking socket (51), a locking hole (53) is further formed in the locking block (52), a locking pin (54) is inserted in the locking hole (53), a locking bolt (55) is threadedly screwed on the upper end of the locking block (52), and the lower end of the locking bolt (55) is inserted in the locking pin (54). The connecting mechanism includes a sinking groove formed in the lower end of the stepped head (2), a connecting column (31) is mounted in the sinking groove, the drill bit (3) is sleeved on the connecting column (31), and the drill bit (3) is fixedly connected with the stepped head (2) through a connecting bolt (32).

3. A new alloy step drill according to claim 2, characterized in that: A chip removal groove (21) is formed in the stepped head (2).

4. A new alloy step drill according to claim 3, characterized in that: The drill rod (1), the stepped head (2) and the drill bit (3) are all made of alloy material.

5. A new alloy step drill according to claim 4, characterized in that: ​ 6. A new alloy step drill as claimed in claim 5, wherein: ​ 7. A new alloy step drill according to claim 6, characterized in that: ​ 8. A new alloy step drill according to claim 7, characterized in that: ​

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