Adjustable metal cutting tool

Abstract

The utility model discloses an adjustable metal cutting tool which comprises a tool fixing assembly, a grinding head, a drill bit, a drill bit position adjusting assembly and a locking mechanism, a cavity used for containing the drill bit position adjusting assembly is formed in the tool fixing assembly, and the cavity penetrates through one end to form an opening; the drill bit position adjusting assembly is arranged in the cavity, the grinding head is arranged at the open end of the cutter fixing assembly, and the drill bit is arranged at the end of the drill bit position adjusting assembly and extends out of the grinding head under the action of the drill bit position adjusting assembly. The locking mechanism is connected with the drill bit and the drill bit position adjusting assembly. The drill bit position adjusting assembly is arranged to drive the drill bit arranged at the tail end of the drill bit position adjusting assembly to extend out of the grinding head, the functions of grinding and drilling selection of the whole device are achieved, the connecting stability of the drill bit is improved by arranging the locking mechanism, and the risk that the drill bit falls off is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal cutting tools, and in particular relates to an adjustable metal cutting tool. Background Art

[0002] Cutting tools are tools used for cutting processing in mechanical manufacturing. The vast majority of tools are used by machines. The tools used in mechanical manufacturing are basically used to cut metal materials. There are many types of cutting tools, including turning tools, hole processing tools, milling cutters, broaches, gear tools, etc. Among them, hole processing tools need to drill holes through the rotation of the tool. They are tools that process holes in solid materials. Commonly used ones are twist drills, center drills and deep hole drills.

[0003] The Chinese patent document with patent number 202221090731.6 discloses a tool for metal cutting processing of CNC machine tools, which controls the external grinding wheel to rotate as a whole by driving the tool rod, so as to grind the raw materials to be processed. Although this technical solution can realize the functions of drilling and grinding at the same time, the drill bit cannot be moved and adjusted;

[0004] Moreover, the tool drill bit in this solution is not provided with a locking mechanism, which may easily cause the drill bit to loosen and fall off during use. The metal cutting tools in the prior art do not have the function of cooling the drill bit and the grinding wheel, or only achieve cooling through separate air blowing or oil mist spraying. Therefore, improvement is needed. Utility Model Content

[0005] The utility model aims to provide an adjustable metal cutting tool, and solves the technical problem that a grinding head is fixedly arranged on the periphery of a metal cutting tool drill bit in the prior art, which cannot satisfy the function of adjusting the drill bit position and is easy to cause the drill bit to loosen and fall off during use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides an adjustable metal cutting tool, comprising a tool fixing component, a grinding head, a drill bit, a drill bit position adjustment component and a locking mechanism. A cavity for accommodating the drill bit position adjustment component is provided in the tool fixing component, and the cavity passes through one end to form an opening; the drill bit position adjustment component is arranged in the cavity, the grinding head is arranged at the open end of the tool fixing component, the drill bit is arranged at the end of the drill bit position adjustment component, and extends to the outside of the grinding head under the action of the drill bit position adjustment component; the locking mechanism connects the drill bit and the drill bit position adjustment component.

[0008] By setting a drill position adjustment component, the drill bit set at the end is driven to extend to the outside of the grinding head, thereby realizing the cutting and drilling selection functions of the entire device, and by setting a locking mechanism, the stability of the drill bit connection is increased and the risk of the drill bit falling off is reduced.

[0009] Optionally, the drill bit position adjustment assembly includes a motor, a screw, a sliding sleeve and a drill bit mounting seat, the motor is fixed inside the tool fixing assembly, the screw is fixed on the motor output shaft, one end of the sliding sleeve is threadedly sleeved on the screw, and the other end is fixedly connected to the drill bit mounting seat, the drill bit is fixed to the end of the drill bit mounting seat by a locking mechanism, and the motor is set to drive the screw to rotate, and the screw is threadedly connected to the drill bit mounting seat to realize the movement of the drill bit mounting seat.

[0010] Optionally, the tool fixing assembly includes a fixed cylinder and a connecting cylinder, one end of the fixed cylinder is provided with a linkage shaft externally connected to a machine tool spindle, and the other end is fixedly connected to the connecting cylinder, the motor is arranged inside the fixed cylinder, and the screw is arranged inside the connecting cylinder, and the linkage shaft is arranged externally connected to the machine tool to drive the rotation of the fixed cylinder and the connecting cylinder as a whole.

[0011] Optionally, a guide mechanism is provided between the fixed cylinder and the connecting cylinder, and the smoothness of the movement of the sliding sleeve is achieved by providing the guide mechanism, thereby ensuring stability and achieving linear motion.

[0012] Optionally, the locking mechanism includes a connecting ring and a locking nut, a plurality of limiting plugs are arranged in an array on the outer periphery of the connecting ring, a groove for limiting the rotation of the connecting ring and the limiting plug in the circumferential direction is arranged at the end of the drill bit mounting seat, the connecting ring and the limiting plug are inserted in the groove, the locking nut is threadedly connected to the outer periphery of the drill bit mounting seat, and the fixed end of the drill bit passes through the locking nut and is threadedly connected to the connecting ring and the drill bit mounting seat. By providing the connecting ring and the locking nut, the drill bit is connected to the connecting ring through threads and then threadedly inserted into the drill bit mounting seat, and the limiting plug is provided to achieve the limiting in the circumferential direction, and the limiting nut is provided to achieve the limiting in the axial direction of the connecting ring, thereby improving the stability of the connection of the drill bit as a whole.

[0013] Optionally, the adjustable metal cutting tool also includes a fixed frame, which is fixed on the machine tool. The middle of the fixed frame is rotatably connected to the linkage shaft. The nozzle is fixed on the fixed frame by setting the fixed frame, so that the drill bit and the grinding head are sprayed through the nozzle.

[0014] Optionally, the adjustable metal cutting tool further includes a nozzle directed toward the drill bit and the grinding head, the nozzle including an air nozzle and an oil mist nozzle, both of which are fixed to the fixed frame through a nozzle mounting mechanism. The air nozzle is provided to cool the drill bit and the grinding head and blow away the debris generated during cutting, and the oil mist nozzle is provided to cool the drill bit and the grinding head and also achieve lubrication.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The adjustable metal grinding tool of the utility model drives the drill bit arranged at the end to extend out of the grinding head by setting a drill position adjustment component, thereby realizing the cutting and drilling selection functions of the device as a whole, and increases the stability of the drill bit connection by setting a locking mechanism, thereby reducing the risk of the drill bit falling off.

[0017] 2. The adjustable metal grinding tool of the utility model is provided with a connecting ring and a locking nut. The drill bit is connected to the connecting ring through a thread and then threadedly inserted into the drill bit mounting seat. The circumferential direction is limited by providing a limit plate, and the axial direction of the connecting ring is limited by providing a locking nut, thereby improving the stability of the connection of the drill bit as a whole.

[0018] 3. The adjustable metal grinding tool of the utility model cools down the drill bit and the grinding head by setting an air nozzle and blows away the chips generated during cutting, and lubricates the drill bit and the grinding head by setting an oil mist nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a half-section schematic diagram of the utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of a drill position adjustment assembly of the utility model;

[0022] Figure 4 It is an exploded schematic diagram of the locking mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the guide mechanism structure of the utility model;

[0024] Figure 6 It is a schematic diagram of the nozzle installation mechanism of the utility model.

[0025] In the figure: 1-fixed frame, 2-tool fixing assembly, 21-fixed cylinder, 22-connecting cylinder, 3-drill position adjustment assembly, 31-motor, 32-screw, 33-sliding sleeve, 34-drill mounting seat, 4-locking mechanism, 41-connecting ring, 42-locking nut, 5-guide mechanism, 51-limiting slide groove, 52-limiting slider, 6-sprinkler mounting mechanism, 61 fixed ring, 62-hollow pipe rack, 63-air nozzle, 64-oil mist nozzle, 7-bearing cylinder, 8-linkage shaft, 9-grinding head, 10-drill, 11-limiting plug plate. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0027] An embodiment, such as Figures 1 to 6 As shown, an adjustable metal cutting tool is provided, including a fixing frame 1, a tool fixing assembly 2, and a drill position adjustment assembly 3. In this embodiment, the fixing frame 1 is preferably fixed to a side of a machine tool close to the main shaft in the prior art, wherein the middle of the fixing frame 1 is movably connected to a linkage shaft 8 through a bearing cylinder 7, wherein a bearing is welded to the inner wall of the bearing cylinder 7 and is sleeved on the linkage shaft 8, wherein one end of the linkage shaft 8 is externally connected to a power providing device, such as a machine tool main shaft, and the other end is fixed to the end of the tool fixing assembly 2, wherein a grinding head 9 is fixed to the other end of the tool fixing assembly 2, and a drill bit 10 is provided inside the tool fixing assembly 2 by adopting the drill position adjustment assembly 3, wherein a hole is opened in the middle of the grinding head 9 to enable the drill bit 10 to extend out.

[0028] During use, the operator starts the machine tool to drive the linkage shaft 8 to rotate, thereby driving the tool fixing assembly 2 to rotate, so that the grinding head 9 cuts the workpiece to be ground. By setting the drill position adjustment assembly 3 inside the tool fixing assembly 2, the drill bit 10 is moved from the inside of the tool fixing assembly 2 to the outside through the drill position adjustment assembly 3, so as to realize drilling of the workpiece.

[0029] refer to Figure 1 and Figure 2 As shown, the tool fixing assembly 2 in this embodiment includes a fixing cylinder 21 and a connecting cylinder 22, wherein one end of the fixing cylinder 21 is fixedly connected to the linkage shaft 8 via a flange in the prior art, and the other end is communicated with the interior of the connecting cylinder 22, wherein the fixing cylinder 21 and the connecting cylinder 22 can be formed by welding or integrated molding technology in the prior art.

[0030] refer to Figure 3 and Figure 5 As shown, the drill position adjustment component 3 in this embodiment includes a motor 31, wherein the motor 31 is welded inside the fixed tube 21, and the output shaft of the motor 31 is fixedly connected with a screw 32, wherein the screw 32 is threadedly sleeved with a sliding sleeve 33, and in this embodiment, the outer wall of the sliding sleeve 33 is fixed with a guide mechanism 5 that fits the inner wall of the connecting tube 22 to achieve a sliding connection.

[0031] refer to Figure 2 and Figure 5 As shown, in this embodiment, the guide mechanism 5 is preferably a plurality of limit sliders 52 in a circular array on the outer wall of the sliding sleeve 33, wherein the limit slider 52 is a 1 / 4 cylindrical structure symmetrically fixed on the outer wall of the sliding sleeve 33, and a limit slide groove 51 adapted to the limit slider 52 is opened on the inner wall of the connecting tube 22 in this embodiment.

[0032] When in use, the linkage shaft 8 rotates to drive the fixed cylinder 21 and the connecting cylinder 22 to rotate as a whole. When the drill bit 10 needs to be extended or retracted, the motor 31 inside the fixed cylinder 21 rotates to drive the screw 32 to rotate. Under the action of the limiting slide groove 51, the sliding sleeve 33 slides smoothly to extend or retract in accordance with the inner wall of the connecting cylinder 22. At this time, the limiting slider 52 is always stuck in the limiting slide groove 51.

[0033] refer to Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, a drill bit mounting seat 34 is integrally formed at the end of the sliding sleeve 33, wherein the drill bit mounting seat 34 connects the drill bit 10 to the inside through the locking mechanism 4, thereby increasing the stability of the connection of the product drill bit 10.

[0034] refer to Figure 4 As shown, in this embodiment, the locking mechanism 4 includes a connecting ring 41, wherein the connecting ring 41 is preferably a hollow cylindrical structure, wherein four limiting plug plates 11 are symmetrically fixedly welded on the outer periphery of the connecting ring 41, and in this embodiment, a groove matching the connecting ring 41 and the limiting plug plates 11 is provided at the end of the drill bit mounting seat 34, wherein the end periphery of the drill bit mounting seat 34 is also provided with a thread, and in this embodiment, the locking mechanism 4 also includes a locking nut 42, wherein the locking nut 42 is matched with the end thread of the drill bit mounting seat 34.

[0035] When in use, the connecting ring 41 and the limiting plug plate 11 are inserted into the groove at the end of the drill bit mounting seat 34, and the connecting ring 41 is limited in the vertical direction by threaded connection with the locking nut 42 and its end. In this embodiment, the mounting end of the drill bit 10 is provided with an external thread, wherein the inner circumferential wall of the connecting ring 41 and the connecting hole of the drill bit mounting seat 34 are provided with an internal thread compatible with the external thread of the mounting end of the drill bit 10. When in use, after the drill bit 10 passes through the locking nut 42, it is threadedly connected with the connecting ring 41 and the drill bit mounting seat 34 in turn, and the connecting ring 41 and the limiting plug plate 11 are inserted into the groove to limit the drill bit 10 in the circumferential direction, thereby increasing the stability of the connection of the drill bit 10.

[0036] refer to Figure 6 As shown, in this embodiment, a nozzle mounting mechanism 6 is also fixedly connected to the fixed frame 1, wherein the nozzle mounting mechanism 6 includes a pair of hollow pipe frames 62, wherein the hollow pipe frames 62 are preferably symmetrically welded on both sides of the linkage shaft 8, and a fixing ring 61 is fixed to the bottom of the pair of hollow pipe frames 62, wherein the fixing ring 61 is sleeved on the outer periphery of the connecting tube 22 and the diameter is much larger than the outer diameter of the connecting tube 22. In this embodiment, the fixing ring 61 is connected to a pair of nozzles, wherein the nozzles include an air nozzle 63 and an oil mist nozzle 64, wherein the ends of the air nozzle 63 and the oil mist nozzle 64 are fixedly connected with nozzles in the prior art.

[0037] In this embodiment, the air nozzle 63 and the oil mist nozzle 64 are connected to the nozzle through a metal hose in the prior art. In this embodiment, each nozzle is connected to a corresponding hollow pipe rack 62 through a fixing ring 61, and in this embodiment, the oil is connected to the hollow pipe rack 62 through a blower or pump in the prior art to form a separate pipeline.

[0038] When in use, the air nozzle 63 is started to spray at the grinding head 9 or the drill bit 10 to achieve cooling and debris blowing at the grinding head 9 and the drill bit 10. When the oil mist nozzle 64 is started, the grinding head 9 or the drill bit 10 is sprayed to achieve cooling and lubrication of the tool head. The shapes of the air nozzle 63 and the oil mist nozzle 64 can be controlled to achieve spraying at different angles.

[0039] Working principle: When it is necessary to cut a metal workpiece, the external machine tool drives the linkage shaft 8 to rotate, thereby driving the fixed cylinder 21 and the connecting cylinder 22 to rotate, so that the grinding head 9 fixed on the outside can be rotated to cut the workpiece. When it is necessary to drill a hole in the workpiece, the motor 31 is started to drive the screw 32 fixed at its end. Under the action of the limiting slide groove 51 and the limiting slider 52, the sliding sleeve 33 is driven to move smoothly to extend the drill bit 10 out of the grinding head 9. The circumferential rotation is limited by the provided connecting ring 41 and the limiting plug plate 11, and the axial movement is limited by the provided locking nut 42 to prevent the drill bit 10 from falling off due to high-speed rotation.

[0040] The slide sleeve 33 is operated to drive the drill bit 10 to move to the outside of the grinding head 9, and the linkage shaft 8 drives the drill bit 10 to drill a hole in the workpiece. The drilling depth is adjusted by adjusting the extension length of the drill bit 10, and the air nozzle 63 is started to spray the grinding head 9 or the drill bit 10 to achieve cooling and debris blowing at the grinding head 9 and the drill bit 10. When the oil mist nozzle 64 is started, the grinding head 9 or the drill bit 10 is sprayed to achieve cooling and lubrication of the tool head.

[0041] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. An adjustable metal cutting tool, characterized in that: The invention comprises a tool fixing assembly (2), a grinding head (9), a drill bit (10), a drill bit position adjustment assembly (3) and a locking mechanism (4); a cavity for accommodating the drill bit position adjustment assembly (3) is provided in the tool fixing assembly (2); the cavity passes through one end to form an opening; the drill bit position adjustment assembly (3) is arranged in the cavity; the grinding head (9) is arranged at the open end of the tool fixing assembly (2); the drill bit (10) is arranged at the end of the drill bit position adjustment assembly (3) and extends to the outside of the grinding head (9) under the action of the drill bit position adjustment assembly (3); and the locking mechanism (4) connects the drill bit (10) and the drill bit position adjustment assembly (3).

2. An adjustable metal cutting tool according to claim 1, characterized in that: The drill position adjustment assembly (3) comprises a motor (31), a screw rod (32), a sliding sleeve (33) and a drill mounting seat (34); the motor (31) is fixed inside the tool fixing assembly (2); the screw rod (32) is fixed on the output shaft of the motor (31); one end of the sliding sleeve (33) is threadedly sleeved on the screw rod (32) and the other end is fixedly connected to the drill mounting seat (34); the drill bit (10) is fixed to the end of the drill mounting seat (34) via a locking mechanism (4).

3. An adjustable metal cutting tool according to claim 2, characterized in that: The tool fixing assembly (2) comprises a fixing cylinder (21) and a connecting cylinder (22); one end of the fixing cylinder (21) is provided with a linkage shaft (8) externally connected to a machine tool spindle, and the other end is fixedly connected to the connecting cylinder (22); the motor (31) is arranged inside the fixing cylinder (21), and the screw rod (32) is arranged inside the connecting cylinder (22).

4. The adjustable metal cutting tool according to claim 3, characterized in that: A guide mechanism (5) is provided between the fixing cylinder (21) and the connecting cylinder (22).

5. The adjustable metal cutting tool according to claim 4, characterized in that: The locking mechanism (4) comprises a connecting ring (41) and a locking nut (43); a plurality of limiting plug plates (11) are arranged in an array on the outer periphery of the connecting ring (41); a groove for limiting the rotation of the connecting ring (41) and the limiting plug plates (11) in a circumferential direction is arranged at the end of the drill bit mounting seat (34); the connecting ring (41) and the limiting plug plates (11) are inserted into the groove; the locking nut (43) is threadedly connected to the outer periphery of the drill bit mounting seat (34); and the fixed end of the drill bit (10) passes through the locking nut (43) and is threadedly connected to the connecting ring (41) and the drill bit mounting seat (34).

6. The adjustable metal cutting tool according to claim 5, characterized in that: The adjustable metal cutting tool further comprises a fixed frame (1), the fixed frame (1) being fixed on the machine tool, and the middle of the fixed frame (1) being rotatably connected to a linkage shaft (8).

7. The adjustable metal cutting tool according to claim 6, characterized in that: The adjustable metal cutting tool also includes a nozzle facing the drill bit (10) and the grinding head (9), wherein the nozzle includes an air nozzle and an oil mist nozzle, and the air nozzle and the oil mist nozzle are both fixed to the fixing frame (1) via a nozzle mounting mechanism (6).

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