Servo full-automatic chamfering and drilling special machine

Abstract

The utility model discloses a servo full-automatic chamfering and drilling special machine which comprises a drill rod and a plurality of cutting knives used for cutting chamfers, a drill bit is installed at one end of the drill rod, a plurality of installation grooves are formed in the other end of the drill rod in an annular structure, L-shaped rods are arranged in the installation grooves, one parts of the cutting knives are inserted into the installation grooves, and the other parts of the cutting knives are inserted into the installation grooves. The L-shaped rod is provided with an adjusting mechanism for driving the cutting knife to move inwards and outwards, first positioning grooves are vertically formed in the inner wall faces of the mounting grooves, first positioning blocks are slidably mounted in the first positioning grooves, one ends of the first positioning blocks are fixedly connected with the L-shaped rod, and the other ends of the first positioning blocks are fixedly connected with the L-shaped rod; and an adjusting ring for adjusting the vertical height of the cutting knife is in threaded connection outside the drill rod. The chamfering device is simple in structure, chamfering operation can be synchronously completed in the drilling process, dismounting is not needed, the height of the cutting knife can be changed according to the drilling depth, the exposure degree of the cutting knife can be adjusted according to the width needing to be chamfered, and therefore the adaptability of chamfering and drilling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chamfering and drilling, in particular to a servo full-automatic chamfering and drilling special machine. Background Art

[0002] When machining mechanical parts, hole machining generally requires chamfering of the hole mouth. There are currently three main machining methods: the first is to drill the hole first, then change the chamfering tool to chamfer the hole mouth at both ends; the second is to use a portable chamfering tool machine to chamfer the hole mouth at both ends after drilling; the third is to use the two fixed blades at the rear end to interpolate and mill the chamfers of the hole mouth at both ends after drilling. The first machining method has problems with tool change and secondary clamping, which not only has low production efficiency, but also easily causes the chamfering and drilling to be non-concentric, and the defective rate is high; the second machining method uses a portable chamfering machine for chamfering, and its surface quality cannot meet the requirements of high-quality products; the third machining method requires the CNC machine tool to use interpolation milling to chamfer the hole mouth at both ends, which has low machining efficiency and poor tool rigidity, affecting the machining surface quality. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a servo full-automatic chamfering and drilling special machine, which can synchronously complete the chamfering operation during the drilling process without disassembly, so as to solve the problems raised in the above background technology.

[0004] The utility model is realized through the following technical scheme: a servo-based fully automatic chamfering and drilling special machine, comprising a drill rod and a plurality of cutting knives for cutting chamfers, a drill bit being installed at one end of the drill rod, a plurality of mounting grooves being provided in a ring-shaped structure at the other end of the drill rod, an L-shaped rod being provided in each mounting groove, a part of the cutting knives being inserted into the mounting grooves and being provided in contact with the L-shaped rod, an adjusting mechanism for driving the cutting knives to move inwards and outwards being provided on the L-shaped rod, a first positioning groove being vertically provided on the inner wall surface of the mounting groove, a first positioning block being slidably installed in the first positioning groove, one end of the first positioning block being fixedly connected to the L-shaped rod, and an adjusting ring for adjusting the upper and lower heights of the cutting knives being connected to the external thread of the drill rod.

[0005] As a preferred technical solution, the adjusting mechanism includes a screw rod, a rotating block and a bearing. The bearings are embedded in the outer side of the L-shaped rod. The cutting knife is opposite to the inner ring of the bearing and is provided with a screw rod hole that transversely penetrates the cutting knife. The screw rod is threaded in the screw rod hole. One end of the screw rod is installed in the inner ring of the bearing, and the other end extends to the outside and is fixedly connected to the rotating block.

[0006] As a preferred technical solution, a second positioning groove is provided on one horizontal end of the L-shaped plate, the bottom of the cutting knife is placed on the one horizontal end of the L-shaped plate, and a second positioning block is installed, and the second positioning block is slidably set in the second positioning groove.

[0007] As a preferred technical solution, a compression spring is installed on the bottom surface of the first positioning block, and the other end of the compression spring is installed on the bottom surface of the first positioning groove.

[0008] As a preferred technical solution, the outer sides of the cutting blades are inclined to form cutting portions.

[0009] As a preferred technical solution, the cross-sections of the first positioning groove and the first positioning block are both arranged in a "T"-shaped structure.

[0010] As a preferred technical solution, the cross-sections of the second positioning groove and the second positioning block are both arranged in a "T"-shaped structure.

[0011] As a preferred technical solution, a connecting column connected to the servo motor is installed at one end of the drill rod away from the drill bit.

[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, can synchronously complete the chamfering operation during the drilling process, does not need to be disassembled, can change the height of the cutting knife according to the depth of the drilling hole, and can also adjust the degree of exposure of the cutting knife according to the required chamfer width to increase the adaptability of chamfering drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model after the cutting knife is removed;

[0017] Figure 4 This is a schematic diagram of the structure of the utility model after the L-shaped rod is further removed.

[0018] Among them, 1. drill rod; 2. mounting groove; 3. L-shaped rod; 4. second positioning groove; 5. cutting knife; 6. screw rod; 7. rotating block; 8. first positioning block; 9. connecting column; 10. first positioning groove; 11. adjusting ring; 12. second positioning block; 13. compression spring. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0021] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a servo-based fully automatic chamfering and drilling machine of the utility model comprises a drill rod 1 and a plurality of cutting knives 5 for cutting chamfers, a drill bit being installed at one end of the drill rod 1, a plurality of mounting grooves 2 being provided in an annular structure at the other end of the drill rod 1, an L-shaped rod 3 being provided in each mounting groove 2, a part of the cutting knives 5 being inserted into the mounting groove 2 and being provided in contact with the L-shaped rod 3, an adjusting mechanism for driving the cutting knives 5 to move inwards and outwards being provided on the L-shaped rod 3, a first positioning groove 10 being vertically provided on the inner wall surface of the mounting groove 2, a first positioning block 8 being slidably installed in each of the first positioning grooves 10, one end of each of the first positioning blocks 8 being fixedly connected to the L-shaped rod 3, an adjusting ring 11 for adjusting the upper and lower heights of the cutting knives 5 being connected by an external thread of the drill rod 1.

[0023] In this embodiment, the adjusting mechanism includes a screw rod 6, a rotating block 7 and a bearing. The bearings are embedded in the outer surface of the L-shaped rod 3. The cutting knife 5 is opposite to the inner ring of the bearing and is provided with a screw rod hole that transversely penetrates the cutting knife 5. The screw rod 6 is threadedly connected to the screw rod hole. One end of the screw rod 6 is installed in the inner ring of the bearing, and the other end extends to the outside and is fixedly connected to the rotating block 7.

[0024] In this embodiment, a second positioning groove 4 is provided on one transverse end of the L-shaped plate, the bottom of the cutting knife 5 is placed on the one transverse end of the L-shaped plate, and a second positioning block 12 is installed, and the second positioning block 12 is slidably set in the second positioning groove 4.

[0025] In this embodiment, a compression spring 13 is installed on the bottom surface of the first positioning block 8, and the other end of the compression spring 13 is installed on the bottom surface of the first positioning groove 10. The first positioning block, the L-shaped rod and the cutting knife can be lifted upward by the compression spring, so that the height of the cutting knife can be adjusted.

[0026] In this embodiment, the outer sides of the cutting blades 5 are inclined to form cutting portions, so that chamfering operations can be performed.

[0027] In this embodiment, the cross-sections of the first positioning groove 10 and the first positioning block 8 are both arranged in a "T"-shaped structure; the first positioning block can only move along the first positioning groove to ensure the stability of the L-shaped rod and the cutting knife when they move up and down.

[0028] In this embodiment, the cross-sections of the second positioning groove 4 and the second positioning block 12 are both arranged in a "T"-shaped structure, so that the second positioning block can only move along the second positioning groove to ensure the stability of the cutting knife when it moves in and out.

[0029] In this embodiment, a connecting column 9 connected to the servo motor is installed at one end of the drill rod 1 away from the drill bit.

[0030] When in use, first adjust the height of the cutting knife according to the depth of the drilling hole. When adjusting, directly turn the adjusting ring to move the adjusting ring up and down along the thread. When moving downward, the cutting knife can be squeezed downward, so that the cutting knife can move stably along the first positioning groove. Conversely, after the adjusting ring moves upward, the first positioning block, the L-shaped rod and the cutting knife can be pushed upward by the rebound of the compression spring until the cutting knife is moved to a suitable position; when the cutting knife contacts the material, the top of the cutting knife rests on the adjusting ring, thereby avoiding displacement.

[0031] Then, the exposed degree of the cutting blade is adjusted according to the required chamfer width. When adjusting, the rotating block is directly rotated by a wrench. The rotation of the rotating block drives the screw rod, and the screw rod can drive the cutting blade to move upward along the second positioning groove until it moves to a suitable position, and the moving cutting blade can be positioned by the screw rod;

[0032] After the above is completed, as the drill bit and the drill rod enter the material, the cutting knife will eventually come into contact with the opening of the drill hole. The chamfering operation can be directly completed by the rotating cutting knife without disassembly, so as to increase the effect of chamfering drilling.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A servo-based fully automatic chamfering and drilling machine, characterized in that: The invention comprises a drill rod (1) and a plurality of cutting knives (5) for cutting chamfers, wherein a drill bit is installed at one end of the drill rod (1), and a plurality of mounting grooves (2) are arranged in an annular structure at the other end of the drill rod (1), wherein an L-shaped rod (3) is arranged in each mounting groove (2), and a part of the cutting knives (5) is inserted into the mounting groove (2) and is arranged in contact with the L-shaped rod (3), and an adjustment mechanism for driving the cutting knives (5) to move inward and outward is installed on the L-shaped rod (3), and a first positioning groove (10) is vertically arranged on the inner wall surface of the mounting groove (2), and a first positioning block (8) is slidably installed in each of the first positioning grooves (10), and one end of the first positioning block (8) is fixedly connected to the L-shaped rod (3), and an adjustment ring (11) for adjusting the upper and lower heights of the cutting knives (5) is connected to the outer thread of the drill rod (1).

2. The servo fully automatic chamfering and drilling machine according to claim 1 is characterized in that: The adjusting mechanisms include a screw rod (6), a rotating block (7) and a bearing. The bearings are embedded on the outer surface of the L-shaped rod (3). The cutting knife (5) is provided with a screw rod hole that passes through the cutting knife (5) transversely at the inner ring of the bearing. The screw rod (6) is threadedly connected to the screw rod hole. One end of the screw rod (6) is installed in the inner ring of the bearing, and the other end extends to the outside and is fixedly connected to the rotating block (7).

3. The servo fully automatic chamfering and drilling machine according to claim 1 is characterized in that: A second positioning groove (4) is provided on one transverse end of the L-shaped plate. The bottom of the cutting knife (5) is placed on the one transverse end of the L-shaped plate and is provided with a second positioning block (12). The second positioning block (12) is slidably arranged in the second positioning groove (4).

4. The servo fully automatic chamfering and drilling machine according to claim 1 is characterized in that: A compression spring (13) is installed on the bottom surface of the first positioning block (8), and the other end of the compression spring (13) is installed on the bottom surface of the first positioning groove (10).

5. The servo fully automatic chamfering and drilling machine according to claim 1 is characterized in that: The outer sides of the cutting blades (5) are all inclined to form a cutting portion.

6. The servo fully automatic chamfering and drilling machine according to claim 1 is characterized in that: The cross sections of the first positioning groove (10) and the first positioning block (8) are both arranged in a "T"-shaped structure.

7. The servo fully automatic chamfering and drilling machine according to claim 3 is characterized in that: The cross sections of the second positioning groove (4) and the second positioning block (12) are both arranged in a "T"-shaped structure.

8. The servo fully automatic chamfering and drilling machine according to claim 3 is characterized in that: A connecting column (9) connected to a servo motor is installed at one end of the drill rod (1) away from the drill bit.

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