Alloy spiral end mill for aerospace impeller machining

Abstract

The utility model discloses an alloy spiral end mill for processing an aerospace impeller, which comprises a base, a transmission rod, an alloy spiral end mill, an indexing mechanism and a feeding mechanism, and the transmission rod is rotationally connected onto the base. The alloy spiral end mill has the beneficial effects that the transposition mechanism and the feeding mechanism are arranged, so that the alloy spiral end mill can slide in a limited manner in a feeding chute through a feeding rod in the feeding mechanism in the process of machining a workpiece, further a feeding adjusting rod is driven to slide, and a transmission rod is pushed to move through a linkage plate; according to the alloy spiral end mill feeding device, feeding operation of an alloy spiral end mill on a workpiece is achieved, a transmission rod is made to deflect through linkage of a transposition plate in a transposition sliding groove in the transposition mechanism during feeding, transposition of the alloy spiral end mill is achieved, end teeth of the alloy spiral end mill can make uniform contact with the workpiece, and the machining precision of the alloy spiral end mill is improved. And the situation that the machining precision is affected due to end tooth breakage is avoided.

Description

Technical Field

[0001] This utility model relates to an end mill, specifically an alloy spiral end mill for aerospace impeller machining, belonging to the field of end mill technology. Background Technology

[0002] Spiral end mills are mainly used on vertical milling machines to machine grooves and stepped surfaces. They can also be used to machine shaped surfaces using templates. The cutting teeth on the circumference of the end mill are circumferential teeth, and the cutting teeth on the end face are end teeth. With the development and improvement of machining technology, spiral end mills have gradually been applied to workpiece machining operations in various industries, such as the machining of impellers in the aerospace field.

[0003] However, most existing spiral end mills have various problems. For example, in a spiral end mill disclosed in publication number CN102284736A, although the unique helix angle and spacing of the side cutting edge reduces or eliminates harmonic vibrations generated during machining, thus enabling high-speed machining or high-efficiency cutting, and providing stable and reliable surface quality of the machined workpiece, and extending tool life by 28%, thereby reducing machining costs, the end teeth of the cutting teeth on the circumference of the spiral end mill are easily damaged. Therefore, in order to ensure machining accuracy, the spiral end mill often needs to be indexed during workpiece machining. In addition, the spiral end mill also needs to perform feed motion on the surface of the workpiece. Both indexing and feeding require external support structures to assist in completion. However, most current indexing and feeding structures are independent structures, meaning that the two cannot be synchronized and need to be operated independently. This results in the need for one structure to stop operating during operation, which is cumbersome and seriously affects work efficiency. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to overcome the aforementioned shortcomings in existing technologies by proposing an alloy spiral end mill for aerospace impeller machining.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An alloy spiral end mill for machining aerospace impellers includes a base, a transmission rod, an alloy spiral end mill, an indexing mechanism, and a feed mechanism. The transmission rod is rotatably connected to the base, and the alloy spiral end mill is connected to one end of the transmission rod. The indexing mechanism and the feed mechanism are both mounted on the base, with the feed mechanism located at the bottom.

[0007] The indexing mechanism includes an active rotary cylinder, an indexing disk, an indexing groove, and an indexing plate. The active rotary cylinder is rotatably connected to the base on the side away from the transmission rod. The indexing groove is coaxially fixed to one end of the active rotary cylinder. The irregularly shaped indexing groove is set on the side wall of the indexing disk. One end of the indexing plate is fixed to the transmission rod, and the other end is slidably engaged in the indexing groove.

[0008] As a further embodiment of this utility model: the feeding mechanism includes a feeding adjustment rod, a linkage plate, and a retaining ring. The feeding adjustment rod is slidably connected to the base and located at the bottom of the transmission rod. One end of the linkage plate is fixed to the feeding adjustment rod, and the retaining ring is coaxially fixed to the transmission rod. The other end of the linkage plate is provided with an incised groove, and the linkage plate is slidably engaged with the retaining ring through the incised groove.

[0009] As a further embodiment of this utility model: a limiting protrusion is fixed on the side wall of the feed adjustment rod, and a slot is provided on the base, wherein the limiting protrusion is slidably engaged in the slot provided on the base.

[0010] As a further embodiment of this utility model: the feeding mechanism further includes a feeding groove and a feeding rod. The irregularly shaped feeding groove is recessed on the outer wall of the active rotating drum. One end of the feeding rod is fixed to the end of the feeding adjusting rod away from the linkage plate, and the other end of the feeding rod is slidably engaged in the feeding groove.

[0011] As a further improvement of this utility model, the feed rod and the snap-fit ​​end on the indexing plate that is connected to the slide groove are both rotatably connected to a rotating drum.

[0012] As a further embodiment of this utility model: a driven gear is coaxially fixed at one end of the active rotating drum away from the indexing disk, a servo motor is fixed on the base, and an active gear is coaxially fixed on the output shaft of the servo motor. The active gear and the driven gear are coaxially fixed, and the diameter of the active gear is smaller than that of the driven gear.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, by setting up an indexing mechanism and a feeding mechanism, the alloy spiral end mill can slide within the feed groove of the feed mechanism during the machining process, thereby driving the feed adjusting rod to slide and pushing the transmission rod to move through the linkage plate, thus realizing the feeding operation of the alloy spiral end mill on the workpiece. At the same time, through the linkage of the indexing plate in the indexing groove of the indexing mechanism, the transmission rod is deflected, thereby realizing the indexing of the alloy spiral end mill. This ensures that the end teeth of the alloy spiral end mill can make uniform contact with the workpiece, avoiding the situation where the machining accuracy is affected by the breakage of the end teeth. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the indexing mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the feeding mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the driven gear and its connection structure of the present invention.

[0019] In the diagram: 1. Base, 2. Transmission rod, 3. Alloy spiral end mill, 4. Indexing mechanism, 41. Driven drum, 42. Indexing disc, 43. Indexing groove, 44. Indexing plate, 5. Feeding mechanism, 51. Feed adjusting rod, 52. Linkage plate, 53. Snap ring, 54. Limiting protrusion, 55. Feed groove, 56. Feed rod, 6. Driven gear, 7. Servo motor, 8. Driven gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] like Figures 1 to 4 As shown, an alloy spiral end mill for aerospace impeller machining includes a base 1, a transmission rod 2, an alloy spiral end mill 3, an indexing mechanism 4, and a feed mechanism 5. The transmission rod 2 is rotatably connected to the base 1, the alloy spiral end mill 3 is connected to one end of the transmission rod 2, the indexing mechanism 4 and the feed mechanism 5 are both set on the base 1, and the feed mechanism 5 is located at the bottom.

[0022] The indexing mechanism 4 includes an active rotating cylinder 41, an indexing disk 42, an indexing slide 43, and an indexing plate 44. The active rotating cylinder 41 is rotatably connected to the base 1 on the side away from the transmission rod 2. The indexing slide 43 is coaxially fixed to one end of the active rotating cylinder 41. The irregularly shaped indexing slide 43 is set on the side wall of the indexing disk 42. One end of the indexing plate 44 is fixed to the transmission rod 2, and the other end is slidably engaged in the indexing slide 43.

[0023] The feeding mechanism 5 includes a feed adjusting rod 51, a linkage plate 52, and a retaining ring 53. The feed adjusting rod 51 is slidably connected to the base 1 and located at the bottom of the transmission rod 2. One end of the linkage plate 52 is fixed to the feed adjusting rod 51, and the retaining ring 53 is coaxially fixed to the transmission rod 2. The other end of the linkage plate 52 is provided with an incised groove, and the linkage plate 52 is slidably engaged with the retaining ring 53 through the incised groove.

[0024] A limiting protrusion 54 is fixed on the side wall of the feed adjusting rod 51, and a slot is provided on the base 1. The limiting protrusion 54 is slidably engaged in the slot provided on the base 1.

[0025] The feeding mechanism 5 also includes a feeding groove 55 and a feeding rod 56. The irregularly shaped feeding groove 55 is recessed on the outer wall of the active rotating drum 41. One end of the feeding rod 56 is fixed to the end of the feeding adjusting rod 51 away from the linkage plate 52, and the other end of the feeding rod 56 is slidably engaged in the feeding groove 55.

[0026] In this invention, by setting up a rotation mechanism 4 and a feed mechanism 5, the alloy spiral end mill 3 can slide within the feed groove 55 of the feed rod 56 in the feed mechanism 5 during the machining of the workpiece, thereby driving the feed adjustment rod 51 to slide, and pushing the transmission rod 2 to move through the linkage plate 52, thus realizing the feeding operation of the alloy spiral end mill 3 on the workpiece. At the same time as feeding, the transmission rod 2 is deflected by the linkage of the rotation plate 44 in the rotation groove 43 of the rotation mechanism 4, thereby realizing the rotation of the alloy spiral end mill 3, so that the end teeth of the alloy spiral end mill 3 can make uniform contact with the workpiece, avoiding the situation that the machining accuracy is affected by the breakage of the end teeth. Example 2

[0027] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0028] Rotary drums are rotatably connected to the snap-fit ​​ends of the feed rod 56 and the indexing plate 44 that are connected to the slide groove, reducing the frictional resistance of the feed rod 56 and the indexing plate 44 in the slide groove.

[0029] A driven gear 6 is coaxially fixed on one end of the active rotating drum 41 away from the indexing disk 42. A servo motor 7 is fixed on the base 1. An active gear 8 is coaxially fixed on the output shaft of the servo motor 7. The active gear 8 and the driven gear 6 are connected, and the diameter of the active gear 8 is smaller than that of the driven gear 6. The torque of the servo motor 7 is increased by using gear sets of different diameters.

[0030] Working principle: When using this end mill, first connect the alloy spiral end mill 3 to one end of the transmission rod 2, then start the servo motor 7. The servo motor 7 drives the drive gear 8 to rotate, and synchronously drives the driven gear 6 to mesh and link. At this time, the drive drum 41 rotates synchronously with the driven gear 6. During rotation, the feed rod 56 slides within the feed groove 55, thereby driving the feed adjusting rod 51 to slide, and pushing the transmission rod 2 to move through the linkage plate 52, thereby enabling the alloy spiral end mill 3 to perform feed operations. At the same time as feeding, the indexing plate 44 is linked within the indexing groove 43, thereby causing the transmission rod 2 to deflect, and thus causing the alloy spiral end mill 3 to index.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An alloy spiral end mill for aerospace impeller machining, comprising a base (1), a transmission rod (2), an alloy spiral end mill (3), an indexing mechanism (4), and a feed mechanism (5), characterized in that, The transmission rod (2) is rotatably connected to the base (1), the alloy spiral end mill (3) is connected to one end of the transmission rod (2), the indexing mechanism (4) and the feeding mechanism (5) are both set on the base (1), and the feeding mechanism (5) is located at the bottom; The indexing mechanism (4) includes an active rotating cylinder (41), an indexing disk (42), an indexing groove (43), and an indexing plate (44). The active rotating cylinder (41) is rotatably connected to the base (1) on the side away from the transmission rod (2). The indexing groove (43) is coaxially fixed to one end of the active rotating cylinder (41). The irregularly shaped indexing groove (43) is set on the side wall of the indexing disk (42). One end of the indexing plate (44) is fixed to the transmission rod (2), and the other end is slidably engaged in the indexing groove (43).

2. The alloy spiral end mill for aerospace impeller machining according to claim 1, characterized in that: The feeding mechanism (5) includes a feed adjusting rod (51), a linkage plate (52), and a retaining ring (53). The feed adjusting rod (51) is slidably connected to the base (1) and located at the bottom of the transmission rod (2). One end of the linkage plate (52) is fixed to the feed adjusting rod (51), and the retaining ring (53) is coaxially fixed to the transmission rod (2). The other end of the linkage plate (52) is provided with an incline groove, and the linkage plate (52) is slidably engaged with the retaining ring (53) through the incline groove.

3. The alloy spiral end mill for aerospace impeller machining according to claim 2, characterized in that: A limiting protrusion (54) is fixed on the side wall of the feed adjustment rod (51), and a slot is provided on the base (1). The limiting protrusion (54) is slidably engaged in the slot provided on the base (1).

4. The alloy spiral end mill for aerospace impeller machining according to claim 2, characterized in that: The feeding mechanism (5) further includes a feeding groove (55) and a feeding rod (56). The irregularly shaped feeding groove (55) is recessed on the outer wall of the active rotating drum (41). One end of the feeding rod (56) is fixed on the end of the feeding adjustment rod (51) away from the linkage plate (52), and the other end of the feeding rod (56) is slidably engaged in the feeding groove (55).

5. The alloy spiral end mill for aerospace impeller machining according to claim 4, characterized in that: The feed rod (56) and the indexing plate (44) are both rotatably connected to the slots with rotating drums.

6. The alloy spiral end mill for aerospace impeller machining according to claim 1, characterized in that: A driven gear (6) is coaxially fixed at one end of the active rotating drum (41) away from the indexing disk (42). A servo motor (7) is fixed on the base (1). An active gear (8) is coaxially fixed on the output shaft of the servo motor (7). The active gear (8) and the driven gear (6) are coaxially fixed, and the diameter of the active gear (8) is smaller than that of the driven gear (6).

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