Combined multipurpose tungsten steel end mill

Abstract

The utility model relates to the technical field of milling cutters, in particular to a combined type multipurpose tungsten steel end milling cutter which comprises a cutter head, a plurality of end milling cutters and a plurality of end milling cutters, a screw rod is arranged on the surface of the small milling cutter, a limiting rod is arranged at the end of the screw rod, a circular groove is formed in the cutter head, and a cross rod is arranged in the circular groove; the telescopic rod is arranged on the surface of the cross rod; the milling cutter has the beneficial effects that the groove is formed in the surface of the cutter head, the small milling cutter is installed in the groove, the small milling cutter is fixed in the groove through the screw rod, when the cutter head rotates, the telescopic rod is thrown out of the cross rod through centrifugal force, the jacking plate moves along with the telescopic rod, and the weighting ball is arranged on the surface of the jacking plate, so that the milling cutter is convenient to move. The elastic rod is in contact with the end part of the screw rod, so that the elastic rod is extruded and deformed, the surface of the jacking plate is in contact with the end part of the screw rod, a limiting groove in the surface of the jacking plate is meshed with a limiting rod at the end part of the screw rod, and the screw rod is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the field of milling cutters, in particular to a combined multi-purpose tungsten steel end milling cutter. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. During operation, each tooth cuts off the excess of the workpiece in turn and intermittently. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines;

[0003] In the prior art, a plurality of small cutter heads are fixed on the surface of a combined milling cutter by screws, and when the milling cutter rotates, the workpiece is processed by the small milling cutters fixed on the surface;

[0004] However, the small milling cutter is fixed by a screw. When the screw is loose, the small milling cutter will become loose, thus affecting the precision of the milling cutter in processing the workpiece. Utility Model Content

[0005] The utility model aims to provide a combined multi-purpose tungsten steel end milling cutter to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a combined multi-purpose tungsten steel end mill, the combined multi-purpose tungsten steel end mill comprising:

[0007] A cutter head, wherein a groove is formed on the surface of the cutter head;

[0008] A small milling cutter, wherein a screw is arranged on the surface of the small milling cutter, a limit rod is arranged at the end of the screw, a circular groove is opened inside the cutter head, and a cross bar is arranged inside the circular groove; and

[0009] The telescopic rod is arranged on the surface of the crossbar.

[0010] Preferably, a screw hole is opened on the surface of the groove, a small milling cutter is located in the groove, and a screw rod is screwed into the screw hole in the groove.

[0011] Preferably, a telescopic rod is inserted into the surface of the cross bar, and the telescopic rod can move inside the cross bar.

[0012] A top holding plate is fixed to the end of the telescopic rod, and the top holding plate moves along with the telescopic rod.

[0013] Preferably, a weighted ball is fixed on the surface of the top holding plate, an elastic rod is fixed on the surface of the top holding plate, and a limiting groove is provided on the surface of the top holding plate. When the screw is screwed into the circular groove, the elastic rod is supported on the end of the screw.

[0014] Preferably, the limiting rod on the surface of the screw rod can be engaged in the limiting groove.

[0015] Preferably, when the cutter head rotates, the holding plate moves away from the surface of the cross bar due to centrifugal force, and the surface of the holding plate contacts the surface of the screw.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The surface of the cutter head proposed by the utility model is provided with a groove, in which a small milling cutter is installed, and the small milling cutter is fixed in the groove by a screw rod. When the cutter head rotates, the telescopic rod is thrown out of the cross rod by centrifugal force, so that the top holding plate moves with the telescopic rod, and a weighted ball is provided on the surface of the top holding plate to increase the degree to which the top holding plate is thrown out, the elastic rod contacts the end of the screw rod, so that the elastic rod is squeezed and deformed, causing the surface of the top holding plate to contact the end of the screw rod, and the limiting groove on the surface of the top holding plate engages with the limiting rod at the end of the screw rod to prevent the screw rod from loosening. When the cutter head stops rotating, the elastic rod supports the top holding plate, so that the top holding plate is separated from the screw rod, thereby preventing the rotation of the screw rod from being obstructed. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the top holding plate structure of the utility model;

[0022] Figure 5 This is a structural schematic diagram of the top holding plate of the utility model from another perspective.

[0023] In the figure: a cutter head 1, a groove 2, a small milling cutter 3, a screw rod 4, a limiting rod 5, a circular groove 6, a cross bar 7, a limiting groove 8, a telescopic rod 9, a top holding plate 10, an elastic rod 11, and a weighted ball 12. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a combined multi-purpose tungsten steel end mill, the combined multi-purpose tungsten steel end mill comprising: a cutter head 1, a groove 2 is provided on the surface of the cutter head 1; a small milling cutter 3, a screw 4 is provided on the surface of the small milling cutter 3, a limiting rod 5 is provided at the end of the screw 4, a circular groove 6 is provided inside the cutter head 1, a cross bar 7 is provided inside the circular groove 6; and a telescopic rod 9 is provided on the surface of the cross bar 7. When the cutter head 1 rotates, the telescopic rod 9 is thrown out of the cross bar 7 by centrifugal force, so that the top holding plate 10 moves with the telescopic rod 9, and a weighted ball 12 is provided on the surface of the top holding plate 10 to increase the degree to which the top holding plate 10 is thrown out.

[0027] Embodiment 2

[0028] On the basis of Example 1, a screw hole is provided on the surface of the groove 2, the small milling cutter 3 is located in the groove 2, the screw 4 is screwed in the screw hole in the groove 2, and a telescopic rod 9 is inserted on the surface of the cross bar 7, and the telescopic rod 9 can move inside the cross bar 7. A top holding plate 10 is fixed to the end of the telescopic rod 9, and the top holding plate 10 moves with the telescopic rod 9. A weighted ball 12 is fixed on the surface of the top holding plate 10, and an elastic rod 11 is fixed on the surface of the top holding plate 10. A limiting groove 8 is provided on the surface of the top holding plate 10. When the screw 4 is screwed into the circular groove 6, the elastic rod 11 is supported on the end of the screw 4, and the limiting groove 8 on the surface of the top holding plate 10 is engaged with the limiting rod 5 at the end of the screw 4 to prevent the screw 4 from loosening. When the cutter head 1 no longer rotates, the elastic rod 11 supports the top holding plate 10, so that the top holding plate 10 is separated from the screw 4 to prevent the rotation of the screw 4 from being obstructed.

[0029] Embodiment 3

[0030] On the basis of Example 2, the limiting rod 5 on the surface of the screw 4 can engage in the limiting groove 8. When the cutter head 1 rotates, the centrifugal force causes the top holding plate 10 to move away from the surface of the cross bar 7, and the surface of the top holding plate 10 contacts the surface of the screw 4. The elastic rod 11 contacts the end of the screw 4, so that the elastic rod 11 is squeezed and deformed, causing the surface of the top holding plate 10 to contact the end of the screw 4.

[0031] During actual use, a groove 2 is provided on the surface of the cutter head 1, in which a small milling cutter 3 is installed, and the small milling cutter 3 is fixed in the groove 2 by a screw 4. When the cutter head 1 rotates, the telescopic rod 9 is thrown out of the cross rod 7 by centrifugal force, so that the top holding plate 10 moves with the telescopic rod 9, and a weighted ball 12 is provided on the surface of the top holding plate 10 to increase the degree to which the top holding plate 10 is thrown out, and the elastic rod 11 contacts the end of the screw 4, so that the elastic rod 11 is squeezed and deformed, causing the surface of the top holding plate 10 to contact the end of the screw 4, and the limiting groove 8 on the surface of the top holding plate 10 engages with the limiting rod 5 at the end of the screw 4 to prevent the screw 4 from loosening. When the cutter head 1 no longer rotates, the elastic rod 11 supports the top holding plate 10, so that the top holding plate 10 is separated from the screw 4 to prevent the rotation of the screw 4 from being obstructed.

[0032] 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 combined multi-purpose tungsten steel end mill, characterized by: The combined multi-purpose tungsten steel end mill comprises: A cutter head (1), wherein a groove (2) is formed on the surface of the cutter head (1); A small milling cutter (3), a screw (4) is arranged on the surface of the small milling cutter (3), a limit rod (5) is arranged at the end of the screw (4), a circular groove (6) is opened inside the cutter head (1), and a cross rod (7) is arranged inside the circular groove (6); and The telescopic rod (9) is arranged on the surface of the cross bar (7).

2. The combined multi-purpose tungsten steel end mill according to claim 1, characterized in that: A screw connection hole is provided on the surface of the groove (2), a small milling cutter (3) is located in the groove (2), and a screw rod (4) is screwed into the screw connection hole in the groove (2).

3. The combined multi-purpose tungsten steel end mill according to claim 2, characterized in that: A telescopic rod (9) is inserted into the surface of the cross bar (7), and the telescopic rod (9) can move inside the cross bar (7). A top holding plate (10) is fixed to the end of the telescopic rod (9), and the top holding plate (10) moves with the telescopic rod (9).

4. The combined multi-purpose tungsten steel end mill according to claim 3, characterized in that: A weighted ball (12) is fixed on the surface of the top holding plate (10), an elastic rod (11) is fixed on the surface of the top holding plate (10), a limiting groove (8) is provided on the surface of the top holding plate (10), and when the screw rod (4) is screwed into the circular groove (6), the elastic rod (11) is supported on the end of the screw rod (4).

5. The combined multi-purpose tungsten steel end mill according to claim 4, characterized in that: The limiting rod (5) on the surface of the screw rod (4) can be engaged in the limiting groove (8).

6. The combined multi-purpose tungsten steel end mill according to claim 5, characterized in that: When the cutter head (1) rotates, the holding plate (10) moves away from the surface of the cross bar (7) due to centrifugal force, and the surface of the holding plate (10) contacts the surface of the screw rod (4).

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