Small-aperture special-shaped metal piece drilling device

Abstract

The utility model relates to a drilling device, in particular to a small-aperture special-shaped metal piece drilling device which comprises a motor base and a limiting shaft, a motor is fixedly installed on the motor base, and the output end of the motor penetrates through the motor base from bottom to top and then is connected with a driving wheel and drives the driving wheel to rotate. A hollowed-out hole is formed in the end, away from the motor, of the motor base, an upper bearing and a lower bearing are installed at the positions, located at the upper end and the lower end of the hollowed-out hole, of the motor base in an embedded mode, a driven shaft penetrates through the upper bearing and the lower bearing, a large driven wheel and a small driven wheel are fixedly installed on the driven shaft, and the large driven wheel is connected with a driving wheel through a first belt. The limiting shaft is arranged at the hollowed-out hole, a notch is formed in the limiting shaft, and a drilling rotating wheel is movably installed at the notch. The drilling device has the advantages of being simple in structure, reasonable in design, high in machining efficiency, low in manufacturing cost and machining cost and worthy of vigorous popularization and application, and drilling machining can be conducted within the small hole diameter of 15 mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling device, concretely is a small aperture special-shaped metal piece drilling device. BACKGROUND

[0002] Metal pieces often need to be drilled in the production and processing process, especially special-shaped metal pieces, for example Figure 1 The processing drawing of the special-shaped metal piece shown in the drawing, the metal piece 20 includes an outer cylinder 22, the outer cylinder 22 is a cavity structure with an open end and a hollow interior, an inner cylinder 21 is arranged in the cavity, a gap 23 is formed between the inner cylinder 21 and the outer cylinder 22, the gap value of the gap 23 is 6mm, the height value of the inner cylinder 21 is 24.5mm, the thickness value is 3mm, a blind hole 24 is formed in the bottom of the outer cylinder 22, the blind hole 24 extends from the outside to the inside to the inner cylinder 21, the depth value of the blind hole 24 is 20mm, and the outer diameter value is 15mm, in the drilling process, six through holes 25 need to be processed on the inner cylinder 21, the six through holes 25 are evenly distributed along the circumferential direction of the inner cylinder 21, the traditional processing method is to design the metal piece into a split type, process the through hole 25 on the inner cylinder 21 during processing, and then weld the inner cylinder 21 in the outer cylinder 22, especially the welding process needs to use the friction stir welding process, which has high cost and low processing efficiency, and cannot realize mass production, therefore, the metal piece is designed into an integrated type on the market, which can greatly improve the processing efficiency and reduce the processing cost, and also improve the stability, but the metal piece is small in size and irregular in structure, and needs to process the through hole 25 in the blind hole 24 with an outer diameter value of 15mm, the through hole 25 needs to penetrate the outer cylinder 22 with a thickness value of 3mm, which has great processing difficulty, so it is necessary to design a small aperture special-shaped metal piece drilling device. UTILITY MODEL CONTENTS

[0003] The utility model discloses a small aperture special-shaped metal piece drilling device, which has the advantages of simple structure, reasonable design, drilling in a 15mm small aperture, high processing efficiency, low cost and the like, and solves the problems in the technical background.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a small aperture special-shaped metal piece drilling device, the drilling device includes motor seat and limit shaft, the motor seat is fixedly installed with motor, the output end of motor is from below to above and is connected with driving wheel after penetrating motor seat and drives driving wheel rotation, the motor seat is provided with hollow hole away from motor one end, and the upper bearing and lower bearing are embedded and installed on the both ends of hollow hole on the motor seat, the driven shaft is arranged on the upper bearing and lower bearing, the driven shaft is fixedly installed with big driven wheel and small driven wheel, the big driven wheel is connected with driving wheel through first belt, the limit shaft is arranged at hollow hole, and the limit shaft penetrates motor seat and extends to the outside of motor seat away from hollow hole one end, a gap is formed in the limit shaft, and the drilling rotary wheel is movably installed in the gap, the drilling rotary wheel is detachably installed with drilling shaft, and the drilling rotary wheel is connected with small driven wheel through second belt.

[0005] Preferably, the motor seat is provided with a fixing hole for fixing the motor.

[0006] Preferably, the driving wheel, the big driven wheel, the small driven wheel and the drilling rotary wheel are provided with a wheel groove along the circumferential direction thereof, the driving wheel is located above the small driven wheel, and the driving wheel and the big driven wheel are located on the same horizontal plane, the small driven wheel and the drilling rotary wheel are located on the same horizontal plane, and the small driven wheel is located at the hollow hole.

[0007] Preferably, the first belt and the second belt are circular in cross section.

[0008] Preferably, the limit shaft is provided with a limiting groove on both sides along the length direction thereof, and the thickness of the limit shaft is between 5-10mm.

[0009] Preferably, the length of the drilling shaft is between 3mm-4mm, and the drilling shaft is vertically arranged with the limit shaft.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] 1. The utility model provides a kind of small aperture special-shaped metal piece drilling device, the overall structure of the drilling device is simple, reasonable in design, by being set hollow hole on motor base, and embedding and installing upper bearing and lower bearing on the upper and lower ends of hollow hole, penetratingly setting driven shaft on upper bearing and lower bearing, large driven wheel and small driven wheel are fixedly installed on driven shaft, wherein large driven wheel is connected with driving wheel of motor output end by first belt, small driven wheel is connected with the drilling rotary wheel on limiting shaft by second belt, drilling shaft is detachably installed on drilling rotary wheel, when working, motor drives driving wheel to rotate, driving wheel drives large driven wheel to rotate by first belt, in turn drives driven shaft and small driven wheel on driven shaft to rotate, small driven wheel drives drilling rotary wheel and drilling shaft on drilling rotary wheel to rotate by second belt, drilling shaft can drill hole to metal piece, wherein the thickness value of limiting shaft is between 5-10mm, the length value of drilling shaft is between 3mm-4mm, so that drilling processing can be carried out in 15mm small aperture, and the efficiency of processing is high, and cost and processing cost are low.

[0012] 2, the utility model discloses by being set wheel groove on driving wheel, large driven wheel, small driven wheel and drilling rotary wheel along its circumferential direction, and being set limiting slot on the both sides of limiting shaft along its length direction, first belt and second belt can be limited by wheel groove and limiting slot, guarantee the stability of drilling device. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the processing diagram of the utility model metal piece;

[0014] Figure 2 It is the overall structural drawing of the utility model;

[0015] Figure 3 It is the explosion drawing of the utility model;

[0016] Figure 4 It is the structural drawing of the utility model motor base.

[0017] The reference signs and names in drawing are as follows:

[0018] 1, motor base;2, motor;3, driving wheel;4, hollow hole;5, upper bearing;6, lower bearing;7, driven shaft;8, large driven wheel;9, small driven wheel;10, first belt;11, limiting shaft;12, notch;13, drilling rotary wheel;14, drilling shaft;15, second belt;16, fixed hole;17, wheel groove;18, limiting slot. DETAILED DESCRIPTION

[0019] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0021] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0022] Please refer to Figures 2 to 4 The present application provides an embodiment: a small aperture special-shaped metal piece drilling device, the drilling device is used for drilling Figure 1The irregularly shaped metal part 20 is drilled. The drilling device includes a motor base 1 and a limiting shaft 11. A motor 2 is fixedly installed on the motor base 1. The output end of the motor 2 passes through the motor base 1 from bottom to top and is connected to the driving wheel 3, driving the driving wheel 3 to rotate. A hollow hole 4 is opened on the motor base 1 at the end away from the motor 2. An upper bearing 5 and a lower bearing 6 are embedded and installed on the motor base 1 at the upper and lower ends of the hollow hole 4. A driven shaft 7 is passed through the upper bearing 5 and the lower bearing 6. The driven shaft 7 rotates between the upper bearing 5 and the lower bearing 6 under the action of the motor 2. A fixed shaft is installed on the driven shaft 7. A large driven wheel 8 and a small driven wheel 9 are installed. The large driven wheel 8 is connected to the driving wheel 3 via a first belt 10. A limiting shaft 11 is set at the hollow hole 4, and the end of the limiting shaft 11 away from the hollow hole 4 passes through the motor base 1 and extends to the outside of the motor base 1. A notch 12 is opened on the limiting shaft 11, and a drilling rotating wheel 13 is movably installed at the notch 12. A drilling shaft 14 is detachably installed on the drilling rotating wheel 13, and the drilling rotating wheel 13 is connected to the small driven wheel 9 via a second belt 15. In this embodiment, the cross-sections of the first belt 10 and the second belt 15 are both circular.

[0023] Specifically, the motor base 1 has a fixing hole 16 for fixing the motor 2, and the motor 2 is fixed to the motor base 1 by fastening screws on the fixing hole 16.

[0024] Specifically, the driving wheel 3, the large driven wheel 8, the small driven wheel 9, and the drilling rotating wheel 13 are all provided with wheel grooves 17 along their circumference. The first belt 10 and the second belt 15 are limited by the wheel grooves 17. The driving wheel 3 is located above the small driven wheel 9, and the driving wheel 3 and the large driven wheel 8 are on the same horizontal plane. The small driven wheel 9 and the drilling rotating wheel 13 are on the same horizontal plane, and the small driven wheel 9 is located at the hollow hole 4.

[0025] Specifically, in order to improve the stability of the drilling device, limit grooves 18 are provided on both sides of the limit shaft 11 along its length direction, and the thickness of the limit shaft 11 is between 5-10mm.

[0026] Specifically, in this embodiment, the length of the drilling shaft 14 is between 3mm and 4mm, and the drilling shaft 14 is perpendicular to the limiting shaft 11.

[0027] Please refer to the following: Figures 1 to 4The drilling device in the utility model can realize the drilling processing of the metal piece with small aperture and special shape, and the drilling device is convenient to use and has high efficiency.

[0028] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments but can be implemented in other embodiments without departing from the scope of the application. The embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims.

Claims

1. A small aperture special-shaped metal piece drilling device, comprising a motor base (1) and a limiting shaft (11), characterized in that: The motor seat (1) is fixedly installed with a motor (2), the output end of the motor (2) is connected with a driving wheel (3) and drives the driving wheel (3) to rotate after penetrating the motor seat (1) from bottom to top, a hollow hole (4) is formed in the motor seat (1) away from the motor (2), and an upper bearing (5) and a lower bearing (6) are embedded and installed on the motor seat (1) at the upper and lower ends of the hollow hole (4), a driven shaft (7) is arranged on the upper bearing (5) and the lower bearing (6), a large driven wheel (8) and a small driven wheel (9) are fixedly installed on the driven shaft (7), the large driven wheel (8) is connected with the driving wheel (3) through a first belt (10), a limiting shaft (11) is arranged at the hollow hole (4), and the limiting shaft (11) penetrates the motor seat (1) away from the hollow hole (4) and extends to the outside of the motor seat (1), a notch (12) is formed in the limiting shaft (11), and a drilling rotary wheel (13) is movably installed at the notch (12), the drilling rotary wheel (13) is detachably installed with a drilling shaft (14), and the drilling rotary wheel (13) is connected with the small driven wheel (9) through a second belt (15).

2. The device for drilling small-diameter special-shaped metal pieces according to claim 1, characterized in that: The motor seat (1) is provided with a fixing hole (16) for fixing the motor (2).

3. The device according to claim 1, characterized in that: The driving wheel (3), the large driven wheel (8), the small driven wheel (9) and the drilling rotary wheel (13) are provided with a wheel groove (17) along the circumferential direction thereof, the driving wheel (3) is located above the small driven wheel (9), and the driving wheel (3) and the large driven wheel (8) are located on the same horizontal plane, the small driven wheel (9) and the drilling rotary wheel (13) are located on the same horizontal plane, and the small driven wheel (9) is located at the hollow hole (4).

4. The device for drilling small-diameter special-shaped metal pieces according to claim 1, characterized in that: The first belt (10) and the second belt (15) are circular in cross section.

5. The device for drilling small-diameter special-shaped metal pieces according to claim 1, characterized in that: The limiting shaft (11) is provided with a limiting groove (18) on both sides thereof along the length direction thereof, and the thickness of the limiting shaft (11) is 5-10mm.

6. The device for drilling small-diameter special-shaped metal pieces according to claim 1, characterized in that: The length of the drilling shaft (14) is 3-4mm, and the drilling shaft (14) is perpendicular to the limiting shaft (11).

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