Milling cutter assembly

Abstract

The utility model belongs to the technical field of milling cutters, and discloses a milling cutter assembly, the milling cutter assembly comprises a cutter handle, a cutter bar and a threaded fastener, the cutter handle extends along the Z-axis direction, the cutter handle is provided with a mounting hole extending along the X-axis direction, the cutter handle is also provided with a threaded hole, and the threaded hole is communicated with the mounting hole; the cutter bar is adjustably mounted in the mounting hole in the X-axis direction, a blade is fixedly mounted on the cutter bar, and the blade is used for milling a workpiece; the threaded fastener is installed in the threaded hole in a threaded mode and used for locking the cutter bar in the installation hole. The mounting hole is formed in the cutter handle, and the cutter bar is adjustably mounted in the mounting hole, so that the distance from the blade to the cutter handle is changed, and the universality of the milling cutter assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter assembly. Background Art

[0002] In some machining processes, front milling will interfere with the machine tool or tool, and the milling cutter needs to be passed through the through hole of the object to be processed from the reverse side for reverse milling. At present, reverse milling disc tools are generally used for reverse milling, but the diameter of reverse milling disc tools cannot be adjusted, and the versatility is poor, so they cannot be used for milling small workpieces.

[0003] Therefore, a milling cutter assembly is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a milling cutter assembly, a mounting hole is provided on a shank, a cutter rod is adjustably mounted on the mounting hole, so as to change the distance between the blade and the shank, thereby improving the versatility of the milling cutter assembly.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A milling cutter assembly, the milling cutter assembly comprising:

[0007] A tool handle extending in the Z-axis direction, the tool handle being provided with a mounting hole extending in the X-axis direction, and the tool handle being further provided with a threaded hole, the threaded hole being in communication with the mounting hole;

[0008] A tool bar is adjustably mounted on the mounting hole along the X-axis direction, and a blade is fixedly mounted on the tool bar, and the blade is used for milling a workpiece;

[0009] A threaded fastener is threadedly mounted in the threaded hole, and the threaded fastener is used to lock the knife bar in the mounting hole.

[0010] As an optional technical solution, the tool rod is provided with scale lines, and the scale lines are used to display the adjustment distance of the tool rod along the X-axis direction.

[0011] As an optional technical solution, the tool handle is provided with the threaded hole extending along the Y-axis direction, and the threaded fastener installed in the threaded hole can lock the tool rod to the installation hole along the Y-axis direction.

[0012] As an optional technical solution, the number of the threaded fasteners for locking the tool rod along the Y-axis direction is set to be more than two.

[0013] As an optional technical solution, the tool handle is provided with the threaded hole extending along the Z-axis direction, and the threaded fastener installed in the threaded hole can lock the tool rod to the installation hole along the Z-axis direction.

[0014] As an optional technical solution, the number of the threaded fasteners for locking the tool rod along the Z-axis direction is set to be more than two.

[0015] As an optional technical solution, the threaded fastener is a screw.

[0016] As an optional technical solution, the mounting hole passes through the body of the tool handle along the X-axis direction.

[0017] As an optional technical solution, the end of the tool rod away from the tool handle includes a mounting surface, a first chip removal surface and a second chip removal surface, the mounting surface is parallel to the XZ plane, the first chip removal surface and the second chip removal surface are both perpendicular to the mounting surface, and the first chip removal surface and the second chip removal surface are arranged at an angle and have the same side, the blade is installed on the mounting surface, one side of the blade The blade extends out of the first chip removal surface, and the other side of the blade extends out of the second chip removal surface.

[0018] As an optional technical solution, the angle between the first chip removal surface and the second chip removal surface is less than 90 degrees, and the first chip removal surface and the second chip removal surface are not perpendicular or parallel to the Z axis and the X axis.

[0019] The beneficial effects of the utility model are:

[0020] The milling cutter assembly provided by the utility model includes a tool handle, a tool rod, a blade and a threaded fastener. A mounting hole and a threaded hole are provided on the tool handle so that the mounting hole is connected with the threaded hole. Then the tool rod is inserted into the mounting hole, the tool rod is perpendicular to the tool handle, and the depth of the tool rod inserted into the mounting hole is adjusted so that the blade on the tool rod is adjusted to a preset position. Then the threaded fastener is used to pass through the threaded hole and lock the tool rod to the mounting hole to prevent the tool rod from loosening. In the utility model, the position of the tool rod in the mounting hole is adjustable, and the distance between the blade and the tool handle is changed by adjusting the depth of the tool rod inserted into the mounting hole, thereby obtaining the required milling radius. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below according to the accompanying drawings and embodiments;

[0022] Figure 1 A schematic structural diagram of a milling cutter assembly according to an embodiment from a first perspective;

[0023] Figure 2 An exploded view of the milling cutter assembly according to the embodiment from a first perspective;

[0024] Figure 3 A top view of the milling cutter assembly according to the embodiment;

[0025] Figure 4A front view of the milling cutter assembly according to the embodiment;

[0026] Figure 5 It is a structural schematic diagram of the milling cutter assembly described in the embodiment installed on the spindle of a machine tool.

[0027] In the figure:

[0028] 1. Tool handle; 11. Mounting hole; 12. Threaded hole;

[0029] 2. Tool bar; 21. Scale line; 22. Mounting surface; 23. First chip removal surface; 24. Second chip removal surface;

[0030] 3. Blade;

[0031] 4. Threaded fasteners. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0037] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0038] like Figures 1 to 5 As shown, this embodiment provides a milling cutter assembly, which includes a shank 1, a shank 2 and a threaded fastener 4. The shank 1 extends along the Z-axis direction, and is provided with a mounting hole 11 extending along the X-axis direction. The shank 1 is also provided with a threaded hole 12, and the threaded hole 12 is connected to the mounting hole 11; the shank 2 can be adjusted to be installed in the mounting hole 11 along the X-axis direction, and a blade 3 is fixedly installed on the shank 2, and the blade 3 is used for milling a workpiece; the threaded fastener 4 is threadedly installed in the threaded hole 12, and the threaded fastener 4 is used to lock the shank 2 in the mounting hole 11.

[0039] Specifically, a mounting hole 11 and a threaded hole 12 are provided on the tool handle 1, so that the mounting hole 11 is connected with the threaded hole 12, and then the tool bar 2 is inserted into the mounting hole 11, the tool bar 2 is perpendicular to the tool handle 1, and the depth of the tool bar 2 inserted into the mounting hole 11 is adjusted, so that the blade 3 located on the tool bar 2 is adjusted to a preset position, and then the threaded fastener 4 is passed through the threaded hole 12 and the tool bar 2 is locked to the mounting hole 11 to prevent the tool bar 2 from loosening. In this embodiment, the position of the tool bar 2 in the mounting hole 11 is adjustable, and the distance between the blade 3 and the tool handle 1 is changed by adjusting the depth of the tool bar 2 inserted into the mounting hole 11, so as to obtain the desired milling radius.

[0040] When using the milling cutter assembly of this embodiment, the milling cutter assembly is installed on the machine tool spindle, the machine tool spindle orientation is started, the cutter is fed through the eccentric position to ensure that the tool passes through the hole smoothly without interference, the milling cutter assembly moves to the center of the tool hole, the machine tool is started, the machine tool spindle rotates, and the spiral interpolation processing method is used to complete the reverse milling of the installation surface of the workpiece, and then the milling cutter assembly moves to the center of the tool hole, the machine tool is shut down, the machine tool spindle stops rotating, the machine tool spindle orientation is started, the milling cutter assembly is retracted through the eccentric position to ensure that the tool passes through the hole smoothly without interference, and the milling cutter assembly is retracted to a safe position. The use of eccentric feeding, eccentric feeding and spiral interpolation processing can be applied to processing conditions where the ratio of the reverse milling surface diameter to the tool hole diameter is too large, and the processing vibration problem is effectively avoided.

[0041] The processing radius of the milling cutter assembly, that is, the distance from the cutting edge of the blade 3 to the central axis of the shank 1, can be adjusted according to actual needs, and has strong versatility. The threaded fastener 4 is used to lock the arbor 2 to the shank 1, and the milling radius adjustment, tool replacement and other operations are easy to operate and efficient.

[0042] Compared with reverse milling cutter disc-type tools, the milling cutter assembly of this embodiment is lighter, and uses a threaded fastener 4 to lock the tool rod 2 to the tool handle 1. It has higher structural strength and fewer tool vibration problems. It is suitable for workpieces of various sizes and can greatly reduce the demand for non-standard customized tools, ensure production speed, improve production efficiency, and reduce production costs.

[0043] In this embodiment, the blade 3 is thread-locked to the blade rod 2 to ensure the installation stability of the blade 3 on the blade rod 2.

[0044] Optionally, the tool bar 2 is provided with a scale line 21, which is used to show the adjustment distance of the tool bar 2 along the X-axis direction. The scale line 21 can be used to intuitively know the distance between the blade 3 and the central axis of the tool handle 1, and quickly obtain the milling radius information of the milling cutter assembly.

[0045] Optionally, the tool handle 1 is provided with a threaded hole 12 extending along the Y-axis direction, and the threaded fastener 4 installed in the threaded hole 12 can lock the tool rod 2 to the mounting hole 11 along the Y-axis direction. The threaded fastener 4 installed in the threaded hole 12 extending along the Y-axis direction can lock the tool rod 2 to the mounting hole 11 along the Y-axis direction, and the threaded fastener 4 is vertically abutted against the tool rod 2 to improve the locking effect of the threaded fastener 4 on the tool rod 2.

[0046] Optionally, there are more than two threaded fasteners 4 for locking the tool bar 2 along the Y-axis direction. When only one threaded fastener 4 abuts against the tool bar 2, the tool bar 2 may rotate around the central axis of the threaded fastener 4. In this embodiment, there are two threaded fasteners 4 for locking the tool bar 2 along the Y-axis direction. The two threaded fasteners 4 are used to lock the tool bar 2 in the mounting hole 11 along the Y-axis direction, thereby improving the locking effect of the tool bar 2 in the mounting hole 11. In some other embodiments, there are three, four, or even more threaded fasteners 4 for locking the tool bar 2 along the Y-axis direction.

[0047] Optionally, the tool handle 1 is provided with a threaded hole 12 extending along the Z-axis direction, and the threaded fastener 4 installed in the threaded hole 12 can lock the tool rod 2 to the mounting hole 11 along the Z-axis direction. The threaded fastener 4 installed in the threaded hole 12 extending along the Z-axis direction can lock the tool rod 2 to the mounting hole 11 along the Z-axis direction, and the threaded fastener 4 is vertically abutted against the tool rod 2 to improve the locking effect of the threaded fastener 4 on the tool rod 2.

[0048] Optionally, there are more than two threaded fasteners 4 for locking the tool bar 2 along the Z-axis direction. In order to avoid the phenomenon that the tool bar 2 rotates around the central axis of the threaded fastener 4 when only one threaded fastener 4 abuts against the tool bar 2, in this embodiment, there are two threaded fasteners 4 for locking the tool bar 2 along the Z-axis direction, and the tool bar 2 is locked to the mounting hole 11 along the Z-axis direction by using the two threaded fasteners 4, thereby improving the locking effect of the tool bar 2 in the mounting hole 11. In some other embodiments, there are three, four, or even more threaded fasteners 4 for locking the tool bar 2 along the Z-axis direction.

[0049] In this embodiment, there are four threaded fasteners 4 for locking the tool rod 2 to the tool handle 1, two of which lock the tool rod 2 along the Y-axis direction, and the other two threaded fasteners 4 lock the tool rod 2 along the Z-axis direction.

[0050] Optionally, the threaded fastener 4 is a screw.

[0051] In this embodiment, the mounting hole 11 passes through the body of the tool handle 1 along the X-axis direction, and the tool rod 2 can pass through the body of the tool handle 1 along the X-axis direction.

[0052] Optionally, the end of the arbor 2 away from the shank 1 includes a mounting surface 22, a first chip removal surface 23 and a second chip removal surface 24, the mounting surface 22 is parallel to the XZ plane, the first chip removal surface 23 and the second chip removal surface 24 are both perpendicular to the mounting surface 22, and the first chip removal surface 23 and the second chip removal surface 24 are set at an angle and have the same side, the blade 3 is installed on the mounting surface 22, one side of the blade 3 The cutting edge extends out of the first chip removal surface 23, and the other side of the blade 3 extends out of the second chip removal surface 24.

[0053] In this embodiment, two chip removal surfaces are provided at the end of the tool rod 2 away from the tool handle 1. The waste milled from the workpiece by the blade 3 is removed from the chip removal surface, thereby reducing the interference of the waste with the continued milling of the blade 3.

[0054] Optionally, the angle between the first chip removal surface 23 and the second chip removal surface 24 is less than 90 degrees, and the first chip removal surface 23 and the second chip removal surface 24 are not perpendicular or parallel to the Z axis and the X axis. The angle between the first chip removal surface 23 and the second chip removal surface 24 is less than 90 degrees, and the waste flowing to the first chip removal surface 23 and the waste flowing to the second chip removal surface 24 are more easily cut by the blade 3.

[0055] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A milling cutter assembly, characterized in that: The milling cutter assembly comprises: A knife handle (1) extends in the Z-axis direction, the knife handle (1) is provided with a mounting hole (11) extending in the X-axis direction, the knife handle (1) is also provided with a threaded hole (12), and the threaded hole (12) is connected to the mounting hole (11); A tool bar (2) is adjustably mounted on the mounting hole (11) along the X-axis direction, and a blade (3) is fixedly mounted on the tool bar (2), and the blade (3) is used for milling a workpiece; A threaded fastener (4) is threadedly mounted on the threaded hole (12), and the threaded fastener (4) is used to lock the knife rod (2) in the mounting hole (11).

2. The milling cutter assembly according to claim 1, characterized in that: The knife rod (2) is provided with a scale line (21), and the scale line (21) is used to display the adjustment distance of the knife rod (2) along the X-axis direction.

3. The milling cutter assembly according to claim 1, characterized in that: The tool handle (1) is provided with the threaded hole (12) extending along the Y-axis direction, and the threaded fastener (4) installed in the threaded hole (12) can lock the tool rod (2) to the installation hole (11) along the Y-axis direction.

4. The milling cutter assembly according to claim 3, characterized in that: The number of the threaded fasteners (4) for locking the knife rod (2) along the Y-axis direction is set to be more than two.

5. The milling cutter assembly according to claim 1 or 3, characterized in that: The tool handle (1) is provided with the threaded hole (12) extending along the Z-axis direction, and the threaded fastener (4) installed in the threaded hole (12) can lock the tool rod (2) to the installation hole (11) along the Z-axis direction.

6. The milling cutter assembly according to claim 5, characterized in that: The number of the threaded fasteners (4) for locking the knife rod (2) along the Z-axis direction is set to be more than two.

7. The milling cutter assembly according to claim 1, characterized in that: The threaded fastener (4) is a screw.

8. The milling cutter assembly according to claim 1, characterized in that The mounting hole (11) passes through the body of the knife handle (1) along the X-axis direction.

9. The milling cutter assembly according to claim 1, characterized in that: The end of the tool rod (2) away from the tool handle (1) comprises a mounting surface (22), a first chip removal surface (23) and a second chip removal surface (24); the mounting surface (22) is parallel to the XZ plane; the first chip removal surface (23) and the second chip removal surface (24) are both perpendicular to the mounting surface (22); the first chip removal surface (23) and the second chip removal surface (24) are arranged at an angle and have the same side edge; the blade (3) is mounted on the mounting surface (22); one side edge of the blade (3) extends out of the first chip removal surface (23); and the other side edge of the blade (3) extends out of the second chip removal surface (24).

10. The milling cutter assembly according to claim 9, characterized in that The angle between the first chip removal surface (23) and the second chip removal surface (24) is less than 90 degrees, and the first chip removal surface (23) and the second chip removal surface (24) are neither perpendicular nor parallel to the Z axis and the X axis.

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