Machine tool cutter shaft easy to replace

Abstract

The utility model relates to the technical field of cutter shafts, in particular to a machine tool cutter shaft easy to replace, which comprises a base, a fixing mechanism, a cutter shaft body and an extension mechanism, a fixing mechanism is arranged in the base, a cutter shaft body is connected to the lower portion of the fixing mechanism, an extending mechanism is arranged in the cutter shaft body, and a milling cutter is arranged in the extending mechanism. And the fixing mechanism comprises an inserting block, an arc-shaped groove, a T-shaped through groove, a special-shaped clamping block, a baffle, a rectangular frame and a spring, the bottom of the base is slidably connected with the inserting block through an inserting groove, and the arc-shaped groove is formed in one side of the inserting block. According to the machine tool cutter shaft easy to replace, the rectangular frame is pushed upwards to move away from one side of the special-shaped clamping block, then the cutter shaft body is pulled downwards to pull out the insertion block from the base, the insertion block above the cutter shaft body needing to be replaced is inserted into the insertion groove in the bottom of the base, then the rectangular frame is loosened, the spring pushes the rectangular frame to abut against the baffle, and the special-shaped clamping block is blocked; therefore, the machine tool cutter shaft is easy to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cutter shaft, specifically to an easy-to-replace machine tool cutter shaft. BACKGROUND

[0002] Machine tool cutter shaft usually refers to the shaft component for installing cutter on the machine tool, which plays a key role in the work of the machine tool, according to different types of machine tools, cutter shaft can have different forms and functions, the existing machine tool cutter shaft still has certain defects when using, just like;

[0003] The existing machine tool cutter shaft usually needs to use some tools when installing and dismounting, and the replacement efficiency is low, which is inconvenient to dismount, and the length of the existing machine tool cutter shaft for fixing the milling cutter is usually fixed, when the milling cutter is long and the processed hole is shallow, it is easy to break, if the processed hole is deep, the length of the milling cutter is not enough, and the existing machine tool cutter shaft cannot adjust the length of the milling cutter. SUMMARY

[0004] The utility model discloses a kind of easy-to-replace machine tool cutter shafts, to solve the problem raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an easy-to-replace machine tool cutter shaft, comprising: base, fixed mechanism, cutter shaft body and extension mechanism;

[0006] The inside of the base is provided with a fixed mechanism, the lower part of the fixed mechanism is connected with a cutter shaft body, the cutter shaft body is provided with an extension mechanism, and the extension mechanism is provided with a milling cutter.

[0007] The fixed mechanism comprises: an insert block, an arc-shaped groove, a T-shaped through slot, a special-shaped clamping block, a baffle, a rectangular frame and a spring, the bottom of the base is slidably connected with the insert block through a slot, one side of the insert block is provided with an arc-shaped groove, one side of the base is provided with a T-shaped through slot, a special-shaped clamping block is rotatably connected to the inner wall of the T-shaped through slot through a shaft, a torsional spring is sleeved on the outer side of the shaft, one end of the torsional spring is connected to the inner wall of the special-shaped clamping block, and the other end of the torsional spring is connected to the inner wall of the T-shaped through slot, and the special-shaped clamping block is clamped in the arc-shaped groove.

[0008] Preferably, one side of the special-shaped clamping block is fixedly connected with a baffle.

[0009] Preferably, the upper side of the baffle is abutted with a rectangular frame, the rectangular frame is sleeved on the outer side of the base, and the rectangular frame is abutted on one side of the special-shaped clamping block.

[0010] Preferably, the upper surface of the rectangular frame is connected with a spring, and the other end of the spring is connected to the outer wall of the base.

[0011] Preferably, the extension mechanism comprises a column, a threaded rod, a worm wheel, a worm and a handle, the inside of the cutter shaft body is slidably connected with the column, and the milling cutter is installed at the bottom of the column through bolts.

[0012] Preferably, the upper end of the column is threadedly connected with the threaded rod through a threaded groove, and the threaded rod is rotatably connected above the inner wall of the cutter shaft body.

[0013] Preferably, the upper end of the outer side of the threaded rod is connected with the worm wheel, one side of the worm wheel is meshingly connected with the worm, and the worm is rotatably connected to the inner wall of the cutter shaft body.

[0014] Preferably, the front end of the worm is connected with the handle, and the handle is rotatably arranged in the inner wall of the cutter shaft body.

[0015] Compared with the prior art, the machine tool cutter shaft is easy to replace, the rectangular frame is pushed up from one side of the special-shaped clamping block, the spring is extruded, then the cutter shaft body is pulled down to move the plug block downward, the plug block is pulled out from the base, the plug block above the cutter shaft body to be replaced is inserted into the plug slot at the bottom of the base, the torsion spring on the special-shaped clamping block is rotated into the arc-shaped groove, then the rectangular frame is loosened, the spring pushes the rectangular frame to abut against the baffle, the special-shaped clamping block is prevented from rotating, and the machine tool cutter shaft is easy to replace.

[0016] 1. The rectangular frame is pushed up from one side of the special-shaped clamping block, the spring is extruded, then the cutter shaft body is pulled down to move the plug block downward, the plug block is pulled out from the base, the plug block above the cutter shaft body to be replaced is inserted into the plug slot at the bottom of the base, the torsion spring on the special-shaped clamping block is rotated into the arc-shaped groove, then the rectangular frame is loosened, the spring pushes the rectangular frame to abut against the baffle, the special-shaped clamping block is prevented from rotating, and the machine tool cutter shaft is easy to replace.

[0017] 2. The worm is rotated by rotating the handle, the worm drives the worm wheel to rotate the threaded rod, the column is slid up and down in the cutter shaft body, the length of the column is adjusted, the position of the milling cutter is adjusted, and the length of the milling cutter extending out of the machine tool cutter shaft is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a three-dimensional structure schematic view of the plug block of the utility model;

[0020] Figure 3 It is a three-dimensional structure schematic view of the base of the utility model;

[0021] Figure 4 It is a three-dimensional sectional structure schematic view of the base of the utility model;

[0022] Figure 5The utility model discloses a special-shaped clamping block three-dimensional structure schematic diagram.

[0023] Figure 6 The utility model discloses a worm three-dimensional structure schematic diagram.

[0024] In the drawing: 1, base, 2, fixed mechanism, 201, insert block, 202, arc slot, 203, T-shaped through slot, 204, special-shaped clamping block, 205, baffle, 206, rectangular frame, 207, spring, 3, cutter shaft body, 4, extension mechanism, 401, stand, 402, threaded rod, 403, worm wheel, 404, worm, 405, handle, 5, milling cutter. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model provides a kind of easily replaced machine tool cutter shaft, it include: base 1, fixed mechanism 2, cutter shaft body 3 and extension mechanism 4;The inside of base 1 is provided with fixed mechanism 2, and the lower portion of fixed mechanism 2 is connected with cutter shaft body 3, and the inside of cutter shaft body 3 is provided with extension mechanism 4, and the inside of extension mechanism 4 is provided with milling cutter 5;Fixed mechanism 2 includes: insert block 201, arc slot 202, T-shaped through slot 203, special-shaped clamping block 204, baffle 205, rectangular frame 206 and spring 207, and the bottom of base 1 is slidably connected with insert block 201 by slot, one side of insert block 201 is provided with arc slot 202, one side of base 1 is provided with T-shaped through slot 203, and special-shaped clamping block 204 is rotatably connected on the inner wall of T-shaped through slot 203 by pivot, torsion spring is sleeved on the outside of pivot, one end of torsion spring is connected on the inner wall of special-shaped clamping block 204, and the other end of torsion spring is connected on the inside of T-shaped through slot 203, special-shaped clamping block 204 is clamped in arc slot 202, one side of special-shaped clamping block 204 is fixedly connected with baffle 205, and the top of baffle 205 is abutted with rectangular frame 206, rectangular frame 206 is sleeved on the outside of base 1, and rectangular frame 206 is abutted on one side of special-shaped clamping block 204, the upper surface of rectangular frame 206 is connected with spring 207, and the other end of spring 207 is connected on the outer wall of base 1.

[0027] In implementation, the rectangular frame 206 is pushed up, the rectangular frame 206 is moved away from one side of the special-shaped clamping block 204, the spring 207 is pressed, then the puller shaft body 3 drives the plug block 201 to move downward, the inner wall of the arc-shaped slot 202 pushes the special-shaped clamping block 204 to rotate, the plug block 201 is pulled out of the base 1, the plug block 201 above the puller shaft body 3 to be replaced is inserted into the insertion slot at the bottom of the base 1, the top end of the plug block 201 pushes the special-shaped clamping block 204 to rotate, and the plug block 201 is moved out of the insertion slot at the bottom of the base 1, when the arc-shaped slot 202 is aligned with the T-shaped through slot 203, the torsion spring on the special-shaped clamping block 204 rotates the special-shaped clamping block 204 into the arc-shaped slot 202, then the rectangular frame 206 is released, the spring 207 pushes the rectangular frame 206 to abut against the baffle 205, the special-shaped clamping block 204 is blocked, the special-shaped clamping block 204 is prevented from rotating, and the tool shaft of the machine tool is easy to replace.

[0028] It can be seen from Figure 1 、 Figure 2 、 Figure 4 and Figure 6 that the extension mechanism 4 comprises a column 401, a threaded rod 402, a worm wheel 403, a worm 404 and a rotating handle 405, the column 401 is slidably connected in the inside of the puller shaft body 3, the milling cutter 5 is installed at the bottom of the column 401 through bolts, the upper end of the column 401 is threadedly connected with the threaded rod 402 through a threaded groove, the threaded rod 402 is rotationally connected above the inner wall of the puller shaft body 3, the upper end of the outer side of the threaded rod 402 is connected with the worm wheel 403, one side of the worm wheel 403 is meshingly connected with the worm 404, the worm 404 is rotationally connected to the inner wall of the puller shaft body 3, and the front end of the worm 404 is connected with the rotating handle 405, and the rotating handle 405 penetrates and rotates in the inner wall of the puller shaft body 3.

[0029] In implementation, the rotating handle 405 drives the worm 404 to rotate, the worm 404 drives the worm wheel 403 to drive the threaded rod 402 to rotate, the threaded rod 402 drives the column 401 to slide up and down in the puller shaft body 3 when rotating, the position of the milling cutter 5 is adjusted, the length of the milling cutter 5 extending out of the machine tool tool shaft is adjusted, when the hole is relatively shallow, the length of the column 401 extending out is shortened, and the structural strength is increased.

[0030] In summary: when using the easy-to-replace machine tool arbor, first, the base 1 is installed with the driving device of the machine tool, the milling cutter 5 is installed at the bottom of the column 401, the arbor body 3 and the milling cutter 5 are driven to rotate by the driving device of the machine tool, and the workpiece on the clamping device of the machine tool is machined; when the hole to be machined on the workpiece is deep, the handle 405 is rotated, the column 401 is extended downward, and the hole is machined; if the arbor body 3 needs to be replaced or maintained, the rectangular frame 206 is pushed up to move away from one side of the special-shaped clamping block 204, then the arbor body 3 is pulled out, the plug 201 above the arbor body 3 to be replaced is inserted into the insertion slot at the bottom of the base 1, and then the rectangular frame 206 is loosened and fixed. The contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A readily replaceable machine tool arbor comprising: The base (1), the fixing mechanism (2), the cutter shaft body (3) and the extension mechanism (4) are characterized in that; The base (1) is internally provided with the fixing mechanism (2), the lower portion of the fixing mechanism (2) is connected with the cutter shaft body (3), the cutter shaft body (3) is internally provided with the extension mechanism (4), and the extension mechanism (4) is internally provided with the milling cutter (5); The fixing mechanism (2) comprises an insertion block (201), an arc-shaped groove (202), a T-shaped through groove (203), a special-shaped clamping block (204), a baffle (205), a rectangular frame (206) and a spring (207), the bottom of the base (1) is slidably connected with the insertion block (201) through an insertion groove, one side of the insertion block (201) is provided with the arc-shaped groove (202), one side of the base (1) is provided with the T-shaped through groove (203), the T-shaped through groove (203) is rotatably connected with the special-shaped clamping block (204) on the inner wall through a rotating shaft, a torsional spring is sleeved on the outer side of the rotating shaft, one end of the torsional spring is connected to the inner wall of the special-shaped clamping block (204), and the other end of the torsional spring is connected to the inner portion of the T-shaped through groove (203), and the special-shaped clamping block (204) is clamped in the arc-shaped groove (202).

2. A readily replaceable machine tool arbor according to claim 1 wherein: One side of the special-shaped clamping block (204) is fixedly connected with the baffle (205).

3. A readily replaceable machine tool arbour according to claim 2, characterised in that: The upper portion of the baffle (205) is abutted with the rectangular frame (206), the rectangular frame (206) is sleeved on the outer side of the base (1), and the rectangular frame (206) is abutted on one side of the special-shaped clamping block (204).

4. A readily replaceable machine tool arbor according to claim 3 wherein: The upper surface of the rectangular frame (206) is connected with the spring (207), and the other end of the spring (207) is connected to the outer wall of the base (1).

5. A readily replaceable machine tool arbor according to claim 1 wherein: The extension mechanism (4) comprises a stand column (401), a threaded rod (402), a worm wheel (403), a worm (404) and a rotating handle (405), the inside of the cutter shaft body (3) is slidably connected with the stand column (401), and the milling cutter (5) is installed at the bottom of the stand column (401) through bolts.

6. A readily replaceable machine tool arbour according to claim 5 wherein: The upper end of the stand column (401) is threadedly connected with the threaded rod (402) through a threaded groove, and the threaded rod (402) is rotatably connected above the inner wall of the cutter shaft body (3).

7. A readily replaceable machine tool arbour according to claim 6 wherein: The outer side of the threaded rod (402) is connected with the worm wheel (403) at the upper end, one side of the worm wheel (403) is meshingly connected with the worm (404), and the worm (404) is rotatably connected to the inner wall of the cutter shaft body (3).

8. A readily replaceable machine tool arbour according to claim 7, characterised in that: The front end of the worm (404) is connected with the rotating handle (405), and the rotating handle (405) penetrates and rotates on the inner wall of the cutter shaft body (3).

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