CN106180800A - The device of the boring Internal Spherical Surface of teaching - Google Patents

Abstract

The invention discloses a device for boring an inner spherical surface for teaching, which comprises a base (1), a motor (2) installed on the base (1), a first positioning support block (24) on the bottom surface of the workpiece, a bottom surface of the workpiece The second positioning support block (25), the positioning bracket (32) of the first positioning bracket (28) of the workpiece side, the second positioning bracket (34) of the workpiece side and the workpiece end face; Adjust the set screw (26), the adjustable set screw (26) is in contact with the workpiece (7); one end of the stud (30) located at the front and rear sides of the workpiece (7) is connected to the base (1), and the other end passes through the bent plate (29), bent plate (29) compresses workpiece (7). The invention has reasonable structural design, convenient operation, can process inner spherical surfaces with different diameters, can be widely used in the teaching of machinery in enterprises and public institutions, and is a demonstration teaching aid for mechanical professional training of employees, and has great application and popularization value.

Description

A device for boring inner spherical surfaces for teaching

technical field

The invention relates to a machine tool, in particular to a teaching device for boring an inner spherical surface.

Background technique

The demonstration device for boring an inner spherical surface is a teaching demonstration device for typical surface processing in the course teaching of "Machinery Manufacturing Technology". It can make knowledge concrete and visualized, thereby improving students' interest and enthusiasm in learning. At present, the inner spherical surface can be processed on a boring machine or a lathe, but most of the inner spherical surface processing devices usually can only process an inner spherical surface of one size, the structure is complex, the rigidity of the cutter bar is low, and the operation is inconvenient.

Therefore, it is very necessary to design a device for boring inner spherical surfaces with simple and novel structure, easy manufacture, low cost, convenient operation, and capable of processing inner spherical surfaces with different diameters.

Contents of the invention

Purpose of the invention: The purpose of the invention is to solve the deficiencies of the prior art, and provide a device for boring inner spherical surfaces with reasonable structural design, convenient operation, easy manufacture, low cost, and capable of processing inner spherical surfaces with different diameters. The device can be used for processing the inner spherical surface of the spherical bearing seat and the inner spherical surface of the valve core, and can be widely used in the teaching of machinery in enterprises and institutions, and as a demonstration teaching aid for mechanical professional training of employees, and has great application and promotion value.

Technical scheme: in order to realize the above object, the technical scheme adopted in the present invention is as follows:

A device for boring an inner spherical surface for teaching, which includes a base, a motor installed on the base, a first positioning support block on the bottom surface of the workpiece, a second positioning support block on the bottom surface of the workpiece, a first positioning bracket on the side of the workpiece, a workpiece The second positioning bracket on the side and the positioning bracket on the end face of the workpiece; adjustable positioning screws are installed on the positioning bracket, and the adjustable positioning screws are in contact with the workpiece; Plate, bending plate to press the workpiece;

One end of the belt is connected to the small pulley installed on the output shaft of the motor, and the other end is connected to the large pulley installed on the left end of the boring bar. The boring bar passes through the workpiece, and the two ends of the boring bar are installed on the left and right side bearings respectively. On, the bearing with seat is connected with the bracket installed on the base;

The two sides of the frame-shaped tool rest are hinged with the boring bar through pins. The upper end of the frame-shaped tool rest is equipped with a boring tool. The lower end of the frame-shaped tool rest is hinged with one end of the connecting rod. The other end of the connecting rod is hinged with the sliding sleeve. Then, the keyway on the sliding sleeve is slidingly connected with the guide key, the guiding key is fixed on the boring bar, the two ends of the shift fork are stuck in the groove of the sliding sleeve, the shift fork is fixedly connected with the slide plate, the slide plate is connected with the support slidingly, and the nut is fixed with the slide plate Connection, the lead screw is threaded with the nut, the right end of the lead screw is connected with the handle, the lead screw is installed on the support, and the support is installed on the base.

As a preferred solution, in the above teaching device for boring an inner spherical surface, the bearing with seat includes an end cover, a bearing cover, a bearing and a bearing base; the bearing cover and the bearing base are connected by screws.

As a preferred solution, in the above-mentioned teaching device for boring inner spherical surfaces, the left side and right side of the lead screw are respectively connected with two supports, and the right side of the lead screw and the stepped hole of the support are equipped with thrust ball bearings. The right end of the ball bearing is equipped with an end cover, and the end cover is fixedly connected with the support. A sleeve is installed on the right end of the end cover and the screw journal, and the sleeve is fixedly connected with the screw journal, which can prevent the axial movement of the screw.

The workpiece described above is an inner spherical bearing seat, which includes a bearing cover and a bearing base connected by screws.

The invention can realize inner spherical surface processing with different diameters by changing the swing radius of the frame tool holder, and has strong applicability.

The working process and principle of the device for boring the inner spherical surface for teaching provided by the present invention is that after the workpiece is positioned on the positioning element, it can ensure that the center of rotation of the frame-shaped tool holder coincides with the center of the inner spherical surface of the workpiece, and then clamp it with a bent plate Tighten the workpiece. The motor drives the boring bar to rotate through the belt to realize the rotary motion of the boring tool. The transfer handle drives the screw to rotate, and the screw drives the nut, slide plate and shift fork to move linearly. The tool holder is driven to swing around the pin shaft through the connecting rod to realize the arc movement of the boring tool, so that the inner spherical surface can be processed. By changing the swing radius of the frame-shaped tool holder, the machining of inner spherical surfaces with different diameters can be realized.

Beneficial effect, compared with the prior art, the teaching device for boring an inner spherical surface provided by the present invention has remarkable effects in that:

The device for boring the inner spherical surface used for teaching provided by the invention can ensure that the center of rotation of the frame-shaped tool rest coincides with the center of the inner spherical surface of the workpiece after the workpiece is positioned on the positioning element.

The screw nut mechanism and the rocker slider mechanism are cleverly combined to form a combined mechanism. The screw drives the nut, the slide plate and the shift fork to move in a straight line. The pin pivots so that the arc feed movement of the boring tool tip can be realized.

The two ends of the boring bar are installed on the bearings on the left and right sides, and the motor drives the boring bar to rotate through the belt to realize the rotary motion of the boring tool. The machining of the inner spherical surface can be realized through the shape movement.

The frame-shaped tool holder structure is adopted, and the two sides of the tool holder are hinged with the boring bar through pins, which can improve the rigidity of the cutting system.

Changing the swing radius of the frame-shaped tool holder can realize inner spherical surface processing with different diameters, and has strong adaptability.

The device for boring the inner spherical surface for teaching provided by the invention has a simple and novel structure, is easy to manufacture, has low cost, is convenient to operate, can process inner spherical surfaces of different diameters, and can be used for processing the inner spherical surface of a spherical bearing seat and the inner spherical surface of a valve core. It can be widely used in the teaching of machinery in enterprises and institutions, and as a demonstration teaching aid for the professional training of employees in machinery, which has great application and promotion value.

Description of drawings

Fig. 1 is a structural schematic diagram of a teaching device for boring an inner spherical surface provided by the present invention.

FIG. 2 is a schematic structural view of FIG. 1 viewed from above.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

As shown in Figures 1 and 2, a teaching device for boring an inner spherical surface includes a base 1, a motor 2 mounted on the base 1, a first positioning support block 24 on the bottom surface of the workpiece, and a second positioning support block 24 on the bottom surface of the workpiece. Positioning support block 25, the first positioning bracket 28 of workpiece side, the second positioning bracket 34 of workpiece side and the positioning bracket 32 of workpiece end face; Adjustable positioning screw 26 is installed on the positioning bracket 32, adjustable positioning screw 26 and workpiece 7 Contact; one end of the stud 30 positioned at the front and rear sides of the workpiece 7 is connected to the base 1, and the other end passes through the bent plate 29 and is connected with screws, and the bent plate 29 presses the workpiece 7;

One end of the belt 4 is connected with the small pulley 3 installed on the output shaft of the motor 2, and the other end is connected with the large pulley 5 installed on the left end of the boring bar 10. The boring bar 10 passes through the workpiece 7, and the two ends of the boring bar 10 are respectively installed On the bearings with seat 6 on the left and right sides, the bearing with seat 6 is connected with the support 27 installed on the base 1;

Both sides of the frame-shaped tool rest 9 are hinged with the boring bar 10 through pins 33, the upper end of the frame-shaped tool rest 9 is equipped with a boring tool 8, the lower end of the frame-shaped tool rest 9 is hinged with one end of the connecting rod 11, and the other end of the connecting rod 11 is connected with the sliding sleeve 12 is hinged, the sliding sleeve 12 is socketed with the boring bar 10, the keyway on the sliding sleeve 12 is slidingly connected with the guide key 13, the guide key 13 is fixed on the boring bar 10, the two ends of the shift fork 14 are stuck in the groove of the sliding sleeve 12, and the The fork 14 is fixedly connected with the slide plate 16, the slide plate 16 is slidably connected with the support 17, the slide plate 16 is fixedly connected with the nut 18, the nut 18 is threaded with the lead screw 19, and the right end of the lead screw 19 is connected with the handle 20. Bar 19 is installed on the bearing 17, and bearing 17 is installed on the base 1.

In the above-mentioned teaching device for boring an inner spherical surface, the bearing with seat 6 includes an end cover, a bearing cover, a bearing and a bearing base; the bearing cover and the bearing base are connected by screws.

In the above-mentioned device for boring inner spherical surfaces for teaching, the left side and the right side of the leading screw 19 are respectively connected with two supports 17, and the right side of the leading screw 19 and the stepped holes of the supporting supports 17 are equipped with thrust ball bearings 23, Thrust ball bearing 23 right ends are provided with end cover 21, and end cover 21 is fixedly connected with bearing 17, and sleeve 22 is housed on end cover 21 right ends and leading screw 19 journals, and sleeve 22 is fixedly connected with leading screw 19 journals, can Prevent leading screw 19 from moving axially.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art of the present invention can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (3)

1. the device of the boring Internal Spherical Surface that a kind is imparted knowledge to students, it is characterised in that it includes base (1), is arranged on base (1) Motor (2), first supporting block for location (24) of workpiece bottom, second supporting block for location (25) of workpiece bottom, side surface of workpiece First locating support (28), second locating support (34) of side surface of workpiece and the locating support (32) of workpiece end face；Locating support (32) being provided with adjustable positioning screw (26) on, adjustable positioning screw (26) contacts with workpiece (7)；It is positioned at side before and after workpiece (7) Studs (30) one end be connected with base (1), the other end pass bent plate (29), bent plate (29) workpiece pressing (7)；

Belt (4) one end is connected with the small pulley (3) being arranged on motor (2) output shaft, the other end be arranged on boring bar (10) Big belt wheel (5) on left end connects, and boring bar (10) passes workpiece (7), and boring bar (10) two ends are separately mounted to the band of two sides, left and right On seat bearing (6), rolling bearing units (6) are connected with the support (27) being arranged on base (1)；

Shaped as frame knife rest (9) both sides are hinged with boring bar (10) by pin (33), and shaped as frame knife rest (9) upper end is provided with boring cutter (8), frame Shape knife rest (9) lower end is hinged with one end of connecting rod (11), and connecting rod (11) other end is hinged with sliding sleeve (12), sliding sleeve (12) and boring bar (10) socket, the upper keyway of sliding sleeve (12) is slidably connected with feather key (13), and feather key (13) is fixed on boring bar (10), shift fork (14), in two ends are stuck in the groove of sliding sleeve (12), shift fork (14) is fixing with slide plate (16) to be connected, described slide plate (16) and bearing (17) being slidably connected, slide plate (16) is fixing with nut (18) to be connected, and nut (18) is threadeded with leading screw (19), described leading screw (19) right-hand member is connected with handle (20), and leading screw (19) is arranged on bearing (17), and bearing (17) is arranged on base (1).

The device of the boring Internal Spherical Surface of teaching the most according to claim 1, it is characterised in that rolling bearing units (6) include End cap, bearing cap, bearing and bearing base；Bearing cap is connected by screw with bearing base.

The device of the boring Internal Spherical Surface of teaching the most according to claim 1 and 2 a, it is characterised in that left side for leading screw (19) Side, right side are connected with two bearings (17) respectively, and leading screw (19) right side and bearing (17) shoulder hole are built with thrust ball bearing (23), thrust ball bearing (23) right-hand member is equipped with end cap (21), and end cap (21) is fixing with bearing (17) to be connected, end cap (21) right-hand member with Equipped with sleeve (22) on leading screw (19) axle journal, sleeve (22) is fixing with leading screw (19) axle journal to be connected, and leading screw (19) can be prevented axial Play.