A detachable milling cutter

Abstract

The utility model discloses a detachable milling tool, comprising a main body, a locking ring and a milling cutter rod, wherein a limit plate is fixedly welded at the front end of the main body, a fixing ring is fixedly welded at the rear end of the main body, a nut is movably sleeved on the outer side of the front end of the main body, a locking ring is movably sleeved inside the front end of the main body, a sleeve hole is provided in the center of the locking ring, and the milling cutter rod is movably sleeved inside the sleeve hole, a limit ring is movably sleeved at the lower end of the milling cutter rod, and a plurality of cross bar devices are provided around the outer end of the milling cutter rod, a plurality of mounting grooves are provided at the lower end of the milling cutter rod, and a plurality of milling cutters are provided inside the mounting groove. The utility model is easy to manufacture and process, and the milling cutter rod is movably sleeved through the sleeve hole sleeved inside the main body, and the nut is rotated to cooperate, which effectively facilitates the operator to disassemble the milling tool, reduces the frequency of maintenance and replacement, improves the efficiency of disassembling and assembling the milling tool, and is convenient for users.

Description

Technical Field

[0001] The utility model relates to the technical field of milling tool processing, in particular to a detachable milling tool. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling processing. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. The milling cutter is mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. The milling process is widely used in manufacturing industries such as mold manufacturing and automotive parts processing. The types of milling tools mainly include end mills, face milling cutters and flat milling cutters.

[0003] The existing milling cutter is inconvenient to disassemble and replace during use, which greatly affects the use of the equipment, seriously affects the quality and efficiency of milling, and cannot meet normal production requirements. Therefore, a detachable milling cutter is proposed to solve the above-mentioned technical problems. 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 detachable milling cutter to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable milling tool, including a main body, a locking ring, and a milling cutter rod, wherein a limit plate is fixedly welded at the front end of the main body, a fixing ring is fixedly welded at the rear end of the main body, and a nut is movably sleeved on the outer side of the front end of the main body, a locking ring is movably sleeved inside the front end of the main body, a sleeve hole is provided in the center of the locking ring, and a milling cutter rod is movably sleeved inside the sleeve hole, a limit ring is movably sleeved at the lower end of the milling cutter rod, and a plurality of cross bar devices are arranged around the outer end of the milling cutter rod, a plurality of mounting grooves are provided at the lower end of the milling cutter rod, and a plurality of milling cutters are provided inside the mounting grooves.

[0008] Preferably, the main body of the main body part is a cylindrical structure, and the diameter of the front end is gradually gathered upward along the axis, and the fixing ring is clamped with the main shaft of the machine tool.

[0009] Preferably, the front end of the main body is provided with an external thread, the inner wall of the nut is provided with an internal thread, the main body and the nut are threadedly connected, and a plurality of fixing blocks are provided around the outer wall of the nut.

[0010] Preferably, the front end of the locking ring is equally divided into a nut limiting block along the sleeve hole, and a certain gap is provided between the four limiting blocks.

[0011] Preferably, the milling cutter rod is a cylinder, and four cross bar devices are arranged around the outer end of the milling cutter rod, and four mounting grooves are arranged at the lower end of the milling cutter rod, and the four mounting grooves are evenly distributed around the milling cutter rod along the axis and correspond to the four cross bar devices, and two screw holes are arranged on the inner walls of the four mounting grooves, and internal threads are arranged in the inner walls of the two screw holes.

[0012] Preferably, the cross bar device includes a cross bar, an inclined block and a support rod, and the bottom of the cross bar is movably connected to the outer wall of the milling cutter rod, the end of the cross bar is fixedly welded with the inclined block, and the front end of the cross bar is flush with the front end of the milling cutter rod, and the cross bar is gradually inclined upward from the end, and a support rod is movably pressed at the upper end of the inclined block, and the support rod passes through the limit ring and extends to the upper end of the milling cutter.

[0013] Preferably, the front end of the support rod is provided with an inclination angle, and corresponds to the inclined block, and a square plate is fixedly welded to the rear end of the support rod, and the square plate is movably pressed on the outer end of the milling cutter.

[0014] Preferably, there are four milling cutters, and they are movably connected to the inner walls of the four mounting grooves, and two through holes are provided in the center of the four milling cutters, and the diameters of the two through holes are the same as the two screw holes on the inner walls of the four mounting grooves and correspond to each other, and two screws are movably connected to the outer ends of the four milling cutters, and the outer ends of the two screws are provided with external threads around them, and the two screws pass through the two through holes of the milling cutter and are connected to the inside of the two screw holes.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a detachable milling cutter, which has the following beneficial effects:

[0017] When the worker needs to disassemble the milling tool, the worker can rotate the nut to make the internal thread inside the nut cooperate with the external thread provided at the front end of the main body, so that the locking ring sleeved inside the front end of the main body can be extended and retracted, the cross bar can be loosened and the end of the cross bar can drive the inclined block downward to the surface of the milling cutter rod, so that the end square plate of the support plate is lifted, and the milling cutter rod is released from the fixed locked state. The worker can then take the milling cutter rod out of the main body and use a screwdriver to disassemble the milling cutter, thereby effectively facilitating the worker to disassemble the milling tool and improving the efficiency of disassembling the milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the socket hole structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the milling cutter bar structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the pressing structure of the milling cutter of the utility model.

[0022] In the figure: 1. main body; 2. limit plate; 3. fixing ring; 4. nut; 5. locking ring; 6. socket hole; 7. milling cutter rod; 8. limit ring; 9. cross bar device; 10. mounting groove; 11. milling cutter; 12. screw hole; 13. cross bar; 14. inclined block; 15. support rod; 16. square plate; 17. screw; 18. limit block. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 A detachable milling tool comprises a main body 1, a locking ring 5, and a milling cutter rod 7. A limit plate 2 is fixedly welded at the front end of the main body 1, a fixing ring 3 is fixedly welded at the rear end of the main body 1, and a nut 4 is movably sleeved on the outer side of the front end of the main body 1, a locking ring 5 is movably sleeved inside the front end of the main body 1, a sleeve hole 6 is provided in the center of the locking ring 5, and a milling cutter rod 7 is movably sleeved inside the sleeve hole 6, a limit ring 8 is movably sleeved at the lower end of the milling cutter rod 7, and a plurality of cross bar devices 9 are arranged around the outer end of the milling cutter rod 7, a plurality of mounting grooves 10 are provided at the lower end of the milling cutter rod 7, and a plurality of milling cutters 11 are provided inside the mounting grooves 10.

[0025] Furthermore, the main body of the main body part 1 is a cylindrical structure, and the diameter of the front end is gradually gathered upward along the axis, and the fixing ring 3 is clamped with the main shaft of the machine tool.

[0026] Furthermore, the front end of the main body 1 is provided with an external thread, and the inner wall of the nut 4 is provided with an internal thread. The main body 1 and the nut 4 are threadedly connected, and a plurality of fixing blocks are provided around the outer wall of the nut 4.

[0027] Furthermore, the front end of the locking ring 5 is equally divided into four limit blocks 18 of the nut along the sleeve hole 6, and a certain gap is set between the four limit blocks 18.

[0028] Furthermore, the milling rod 7 is a cylinder, and four cross bar devices 9 are arranged around the outer end of the milling rod 7, and four mounting grooves 10 are arranged at the lower end of the milling rod 7, and the four mounting grooves 10 are evenly distributed around the milling rod 7 along the axis, and correspond to the four cross bar devices 9, and two screw holes 12 are arranged on the inner walls of the four mounting grooves 10, and internal threads are arranged in the inner walls of the two screw holes 12.

[0029] Furthermore, the cross bar device 9 includes a cross bar 13, an inclined block 14 and a support rod 15, and the bottom of the cross bar 13 is movably connected to the outer wall of the milling cutter rod 7, the end of the cross bar 13 is fixedly welded with the inclined block 14, and the front end of the cross bar 13 is flush with the front end of the milling cutter rod 7, and the cross bar 13 gradually tilts upward from the end, and the support rod 15 is movably pressed at the upper end of the inclined block 14, and the support rod 15 passes through the limiting ring 8 and extends to the upper end of the milling cutter 11.

[0030] Furthermore, the front end of the support rod 15 is provided with an inclination angle, and corresponds to the inclined block 14 , and a square plate 16 is fixedly welded at the rear end of the support rod 15 , and the square plate 16 is movably pressed on the outer end of the milling cutter 11 .

[0031] Furthermore, there are four milling cutters 11, and they are movably connected to the inner walls of the four mounting grooves 10, and two through holes are provided in the center of the four milling cutters 11, and the diameter of the two through holes is the same as the two screw holes 12 on the inner walls of the four mounting grooves 10, and they correspond to each other, and two screw rods 17 are movably connected to the outer ends of the four milling cutters 11, and the outer ends of the two screw rods 17 are provided with external threads, and the two screw rods 17 pass through the two through holes of the milling cutter 11 and are connected to the inside of the two screw holes 12.

[0032] Working principle: When disassembling the milling cutter, the staff first takes out the main body 1 from the main shaft of the machine tool. When the milling cutter 11 needs to be clamped, the nut 4 is rotated clockwise by using a wrench to make the internal thread of the inner wall of the nut 4 and the external thread of the front end of the main body 1 rotate in coordination, so that the locking ring 5 gradually shrinks under the rotation of the nut 4, and the locking ring 5 squeezes the cross bar 13 while shrinking. The extrusion of the cross bar 13 pushes the inclined block 14 forward, so that the inclined block 14 enters the inner end of the support rod 15, so that the upper end of the support rod 15 is tilted outward through the entry of the inclined block 14, and the lower end of the support rod 15 is tilted inward, so that the lower end of the support rod 15 uses the block plate 16 to clamp the milling cutter 11, so that the milling cutter 11 is fixed;

[0033] When it is necessary to disassemble it, the nut 4 is rotated clockwise with a wrench to make the internal thread on the inner wall of the nut 4 rotate in coordination with the external thread at the front end of the main body 1. The locking ring 5 movably sleeved inside the front end of the main body 1 is expanded and contracted, the cross bar 13 is loosened and the inclined block 14 is pressed downward against the surface of the milling cutter rod 7. The front end of the support rod 15 is loosened downward at the same time because there is no inclined block 14 to support it. The square plate 16 at the end of the support rod 15 is lifted up away from the surface of the milling cutter rod 7, and the milling cutter rod 7 is released from the fixed locked state. The staff can remove the milling cutter rod 7 from the main body 1. A screw 17 is provided at the front end of the milling cutter rod 7 to fix the milling cutter 11. The staff can remove the milling cutter 11 at the front end of the milling cutter rod 7 by rotating the screw 17 with a screwdriver.

[0034] 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. A detachable milling cutter, comprising a main body (1), a locking ring (5), and a milling cutter rod (7), characterized in that: A limiting plate (2) is fixedly welded at the front end of the main body (1), a fixing ring (3) is fixedly welded at the rear end of the main body (1), a nut (4) is movably sleeved on the outer side of the front end of the main body (1), a locking ring (5) is movably sleeved inside the front end of the main body (1), a sleeve hole (6) is provided in the center of the locking ring (5), a milling cutter rod (7) is movably sleeved inside the sleeve hole (6), a limiting ring (8) is movably sleeved at the lower end of the milling cutter rod (7), a plurality of cross bar devices (9) are provided around the outer end of the milling cutter rod (7), a plurality of mounting grooves (10) are provided at the lower end of the milling cutter rod (7), and a plurality of milling cutters (11) are provided inside the mounting grooves (10).

2. A detachable milling tool according to claim 1, characterized in that: The main body of the main body (1) is a cylindrical structure, and the diameter of the front end is gradually gathered upward along the axis, and the fixing ring (3) is clamped with the main shaft of the machine tool.

3. The detachable milling tool according to claim 1, characterized in that: The front end of the main body (1) is provided with an external thread, and the inner wall of the nut (4) is provided with an internal thread. The main body (1) and the nut (4) are threadedly connected, and a plurality of fixing blocks are provided around the outer wall of the nut (4).

4. The detachable milling tool according to claim 1, characterized in that: The front end of the locking ring (5) is equally divided into nut (4) limit blocks (18) along the sleeve hole (6), and a certain gap is provided between the four limit blocks (18).

5. The detachable milling tool according to claim 1, characterized in that: The milling cutter rod (7) is a cylinder, and four cross bar devices (9) are arranged around the outer end of the milling cutter rod (7), and four mounting grooves (10) are arranged at the lower end of the milling cutter rod (7), and the four mounting grooves (10) are evenly distributed around the milling cutter rod (7) along the axis and correspond to the four cross bar devices (9), and two screw holes (12) are arranged on the inner walls of the four mounting grooves (10), and internal threads are arranged in the inner walls of the two screw holes (12).

6. A detachable milling tool according to claim 5, characterized in that: The crossbar device (9) comprises a crossbar (13), an inclined block (14) and a support rod (15), and the bottom of the crossbar (13) is movably connected to the outer wall of the milling cutter rod (7), the end of the crossbar (13) is fixedly welded with the inclined block (14), and the front end of the crossbar (13) is flush with the front end of the milling cutter rod (7), and the crossbar (13) is gradually inclined upward from the end, and the support rod (15) is movably pressed at the upper end of the inclined block (14), and the support rod (15) passes through the limit ring (8) and extends to the upper end of the milling cutter (11).

7. A detachable milling tool according to claim 6, characterized in that: The front end of the support rod (15) is provided with an inclination angle and corresponds to the inclined block (14), and a square plate (16) is fixedly welded to the rear end of the support rod (15), and the square plate (16) is movably pressed on the outer end of the milling cutter (11).

8. The detachable milling tool according to claim 1, characterized in that: There are four milling cutters (11) and they are movably connected to the inner walls of the four mounting grooves (10). Two through holes are arranged at the center of the four milling cutters (11). The diameters of the two through holes are the same as the two screw holes (12) on the inner walls of the four mounting grooves (10) and correspond to each other. Two screw rods (17) are movably connected to the outer ends of the four milling cutters (11). The outer ends of the two screw rods (17) are provided with external threads around their peripheries. The two screw rods (17) penetrate the two through holes of the milling cutter (11) and are connected to the insides of the two screw holes (12).

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