CN213809750U

CN213809750U - Two-freedom-degree high-precision digital rotary table

Info

Publication number: CN213809750U
Application number: CN202022565089.XU
Authority: CN
Inventors: 刘殿双; 张有林; 宫钰; 毕克成; 刘京达
Original assignee: Changchun Cgul Infrared Technology Co ltd
Current assignee: Changchun Cgul Infrared Technology Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-07-27
Anticipated expiration: 2030-11-09

Abstract

The utility model relates to a high-accuracy digital revolving stage of two degrees of freedom belongs to the electromechanical field. The driving mechanism comprises a main body part and a driving part, wherein the main body part is a support of the whole structure, and the driving part is fixed on a turntable frame of the main body part to control the whole structure to operate. Go up pivot and vertical axis and revolving stage frame and rotate to be connected, vertical axis and base fixed connection, start the self-checking function after the revolving stage circular telegram, after the self-checking was accomplished, driving motor operation drove the revolving stage level and every single move and rotate the angle that needs, it is spacing to all be provided with the commentaries on classics and stop the subassembly promptly machinery on thin commentaries on classics, revolving stage frame and base. Has the advantages that: novel concept, simple structure, small volume and low cost. The two degrees of freedom are mainly responsible for driving the observation equipment to horizontally rotate and vertically rotate in a pitching mode, and on the premise that technical requirements for bearing load, rotation angle, resolution and whole machine weight are met, the overall appearance of the rotary table is miniaturized and high in integration level, and more importantly, the product cost is reduced. The practicability is strong.

Description

Two-freedom-degree high-precision digital rotary table

Technical Field

The utility model relates to an electromechanical field, in particular to revolving stage of high accuracy position control and feedback indicates especially a two degree of freedom high accuracy digital turntable, can carry out the rotation control of level and every single move to the revolving stage through serial interface, and the camera on the purpose is the control revolving stage realizes the automatic scanning monitoring area.

Background

The turntable is a main tracking test system device and is widely applied to the fields of aerospace, aviation, ocean detection, wireless laser of atmospheric channels and the like. In addition, the structural design of the rotary table directly influences the tracking precision, and therefore the final working performance of the whole system is influenced. The current digital rotary table has the disadvantages of high price, complex structural form, large volume and insufficient function matching, and is not suitable for a tracking test system. A need exists for a low cost, yet fully functional turntable for a tracking test system.

Disclosure of Invention

An object of the utility model is to provide a high-accuracy digital revolving stage of two degrees of freedom, it is bulky to have solved the prior art existence, and structural style is complicated, can't match the problem of user demand. The utility model discloses structural style is simple to reduced the manufacturing cost of revolving stage, driving motor drives the worm gear structure and can carry out the rotation control of level and every single move to the revolving stage, and accomplish high accurate control position and then instruct the location to static and moving target, fix a position the target in order to conveniently bear observation equipment. The utility model discloses at first consider that the structure transmission in-process reduces the influence to the shafting precision, secondly consider that the mechanical structure form simplifies and reduces the product volume.

The above object of the utility model is realized through following technical scheme:

the two-degree-of-freedom high-precision digital turntable comprises a main body part and a driving part, wherein the main body part is used for supporting the whole structure, and the driving part is fixed on a turntable frame A8 of the main body part; the main body part is: in a main box body, a pitch axis worm gear A33, an inner ring spacer ring A34 and a pitch electric limit A32 are fixed on an upper rotating shaft A4, one ends of a small deep groove ball bearing A6 and a large deep groove ball bearing A25 are in contact with the upper rotating shaft A4, the other ends of the small deep groove ball bearing A6 and the large deep groove ball bearing A25 are in contact with a turntable frame A8, a small bearing end cover A5 and a large bearing pressure ring A27, a small bearing end cover A7, a large bearing end cover A26 and a vertical bearing pressure ring A12 are fixed on a turntable frame A8, a small sealing end cover A3 and a large sealing end cover A28 are in contact with the upper rotating shaft A4, a vertical axis worm gear A20, a worm gear A21 and a vertical electric limit A22 are fixed on a vertical axis A13, a vertical axis bearing A11 and an auxiliary bearing A23 are in contact with a vertical axis A13, a vertical axis locking nut A14 fixes a vertical axis A13 with a base A15, a bearing nut A36 24 is in contact with an auxiliary bearing A23, a photoelectric switch seat A31 is in contact with a photoelectric switch block 31A 31, a photoelectric switch seat, a 31A 31 and a photoelectric switch seat 31A 31 plug, The socket cover plate A30 is fixed on the support plate A1, the second circuit board A42 is in contact with the circuit board frame A41, the blister A38 is in contact with the blister connecting seat A39, the first circuit board A18 and the aviation socket A40 are in contact with the base A15, and the sealing rubber gasket A16 is in contact with the bottom plate A17.

The driving part is as follows: the pitch shaft gland B1 is in contact with a pitch motor shell B9, the first separated angular contact bearing B4 and the bearing gland B7 are fixed on the pitch motor shell B9, the pitch shaft worm B3 is in contact with the first deep groove ball bearing B2 and the first bearing pressing ring B6, the pressing plate B5 is in contact with the coupling B8, the pitch motor shell B9 is in contact with the pitch shaft stepping motor belt encoder B10, one end of the second deep groove ball bearing B15 and the second separated angular contact bearing B17 is in contact with the vertical motor shell B12, the other end of the second deep groove ball bearing B15 and the second separated angular contact bearing B17 are in contact with the vertical worm B13, the vertical shaft gland B16, the vertical shaft bearing gland B18 and the vertical shaft stepping motor belt encoder B11 are fixed on the vertical motor shell B12, and the second bearing pressing ring B14 is in contact with the vertical worm B13.

The main box body is as follows: the limiting damping ring A19 is mechanically connected with the turntable frame A8, and the supporting plate A1 is mechanically connected with the thin rotating arm A2, the upper rotating shaft A4, the thick rotating arm A29, the turntable frame A8, the front cover plate A37, the rear cover plate A43 and the vertical shaft A13; the upper rotating shaft A4 and the vertical shaft A13 are respectively connected with the turntable frame A8 in a rotating mode, and the vertical shaft A13 is fixedly connected with the base A15.

The thin rotating arm A2, the turntable frame A8 and the base A15 are all provided with a rotation stopping component, namely mechanical limit.

The beneficial effects of the utility model reside in that: novel concept, simple structure, small volume and low cost. The two degrees of freedom are mainly responsible for driving the observation equipment to horizontally rotate and vertically rotate in a pitching mode, and on the premise that technical requirements for bearing load, rotation angle, resolution and whole machine weight are met, the overall appearance of the rotary table is miniaturized and high in integration level, and more importantly, the product cost is reduced. The practicability is strong.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate example embodiments of the invention and together with the description serve to explain the invention without limitation.

Fig. 1 is a schematic sectional structure view of a main body part of the present invention;

FIG. 2 is a schematic sectional view of the structure of FIG. 1B-B;

fig. 3 is a schematic structural diagram of the driving part of the present invention.

In the figure: a1, supporting plate; a2, thin rotating arm; a3, small sealing end covers; a4, an upper rotating shaft; a5, a small bearing pressing ring; a6, a small deep groove ball bearing; a7, a small bearing gland; a8, a turntable frame; a9, a thread stop plate; a10, vertical axis photoelectric switch seat; a11, vertical shaft bearing; a12, a vertical bearing ring; a13, vertical axis; a14, a vertical shaft locking nut; a15, a base; a16, sealing the rubber gasket; a17, bottom plate; a18, a first circuit board; a19, a limit damping ring; a20, vertical axis worm gear; a21, a worm gear pressing ring; a22, vertical electric limiting; a23, an auxiliary bearing; a24, bearing nut; a25, a large deep groove ball bearing; a26, a large bearing gland; a27, a large bearing ring; a28, a large sealing end cover; a29, thick rotating arm; a30, a socket cover plate; a31, a pitching photoelectric switch base; a32, pitching electric limiting; a33, a pitch axis worm gear; a34, inner ring spacer ring; a35, plug pad; a36, cabinet plug; a37, front cover plate; a38, water soaking; a39, horizontal bubble connecting piece; a40, aviation socket; a41, a circuit board frame; a42 and a circuit board II; a43, a rear cover plate; a44, photoelectric switch; b1, a pitch shaft gland; b2, a first deep groove ball bearing; b3, pitch axis worm; b4, a first separated angular contact bearing; b5, a pressure plate; b6, bearing pressing ring I; b7, a bearing gland; b8, coupling; b9, pitch motor housing; b10, a pitch axis stepping motor with an encoder; b11, a vertical shaft stepping motor with an encoder; b12, vertical motor housing; b13, vertical worm; b14, bearing pressing ring II; b15, a deep groove ball bearing II; b16, vertical shaft gland; b17, a second separated angular contact bearing; b18, vertical shaft bearing gland.

Detailed Description

The details of the present invention and its embodiments are further described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, the two-degree-of-freedom high-precision digital rotary table of the present invention comprises a main body and a driving part, wherein the main body is supported by the whole structure, and the driving part is fixed on the frame of the main body to control the whole structure to operate.

The main body part is: the limiting damping ring A is mechanically connected with a turntable frame A, a support plate A is mechanically connected with a thin rotating arm A, an upper rotating shaft A, a thick rotating arm A, a turntable frame A, a front cover plate A, a rear cover plate A and a vertical shaft A to form a main box body, a pitching shaft worm wheel A, an inner ring spacer ring A and a pitching electric limiting ring A are fixed on the upper rotating shaft A in the main box body, one end of a small deep groove ball bearing A and one end of a large deep groove ball bearing A are in contact with the upper rotating shaft A, the other end of the small deep groove ball bearing A are in contact with the turntable frame A, a small bearing end cover A, a large bearing end cover A and a vertical bearing ring A are fixed on the turntable frame A, the small sealing end cover A and the large sealing end cover A are in contact with the upper rotating shaft A, the vertical shaft worm wheel A, the worm wheel pressing ring A and the vertical electric limiting ring A are fixed on the vertical shaft A, the vertical shaft bearing A and an auxiliary bearing A are in contact with the vertical shaft A, a locking nut A fixes the vertical shaft A and a base A, a bearing nut A24 is in contact with an auxiliary bearing A23, a pitching photoelectric switch seat A31 is in contact with a photoelectric switch A44, a wire blocking plate A9 is in contact with a vertical photoelectric switch seat A10, a plug pad A35, a cabinet plug A36 is in contact with a socket cover plate A30 and fixed on a support plate A1, a circuit board II A42 is in contact with a circuit board frame A41, a bubble A38 is in contact with a bubble connecting seat A39, a circuit board I A18 and an aviation socket A40 are in contact with a base A15, and a sealing rubber pad A16 is in contact with a bottom plate A17.

Referring to fig. 1 to 3, the working process of the present invention is as follows:

go up pivot A4 and vertical axis A13 and revolving stage frame A8 and rotate and be connected, vertical axis A13 and base A15 fixed connection, the revolving stage starts the self-checking function after circular telegram, after the self-checking is accomplished, driving motor operation drives the revolving stage level and the angle that every single move rotation needs, all be provided with the commentaries on classics stop subassembly on thin rocking arm A2, revolving stage frame A8 and base A15 and be mechanical spacing, mechanical spacing can prevent that electric control part from appearing the problem when unable stall revolving stage interior part damages.

The turntable is mainly driven in two directions, namely in the horizontal direction and the pitching direction, a driving part assembly is fixedly connected with a turntable frame A8, after the turntable is powered on, driving motors (a pitching driving motor in a pitching motor shell B9 and a vertical driving motor in a vertical motor shell B12) drive a pitching shaft worm B3 and a vertical worm B13 to rotate, the worm rotates to drive an upper rotating shaft A4 fixed with a pitching worm wheel A33 and a vertical shaft A13 fixed with a vertical worm wheel A20, the upper rotating shaft A4 and the vertical shaft A13 control the two-degree-of-freedom direction rotation of the turntable, and the two degrees of freedom mainly drive the observation equipment to rotate horizontally and vertically in a pitching mode.

The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made to the present invention should be included in the protection scope of the present invention.

Claims

1. A two-degree-of-freedom high-precision digital turntable is characterized in that: comprises a main body part and a driving part, wherein the main body part is a support of the whole structure, and the driving part is fixed on a turntable frame (A8) of the main body part; the main body part is: in the main box body, a pitch shaft worm gear (A33), an inner ring spacer ring (A34) and a pitch electric limit (A32) are fixed on an upper rotating shaft (A4), one end of a small deep groove ball bearing (A6) and a large deep groove ball bearing (A25) is in contact with the upper rotating shaft (A4), the other end of the small deep groove ball bearing (A6) and the large deep groove ball bearing (A25) is in contact with a turntable frame (A8), a small bearing pressing ring (A5) and a large bearing pressing ring (A27), a small bearing end cover (A7), a large bearing end cover (A26) and a vertical shaft pressing ring (A12) are fixed on the turntable frame (A12), a small sealing end cover (A12) and a large sealing end cover (A12) are in contact with the upper rotating shaft (A12), a vertical shaft worm gear (A12), a worm gear pressing ring (A12) and a vertical electric limit (A12) are fixed on a vertical shaft (A12), a vertical shaft bearing (12) is in contact with a vertical shaft (12), a vertical shaft (12) and an auxiliary bearing (12) and a 12) locking nut (12) is fixed on the vertical shaft 12), the pitching photoelectric switch seat (A31) is in contact with the photoelectric switch (A44), the line blocking plate (A9) is in contact with the vertical photoelectric switch seat (A10), the plug pad (A35), the cabinet plug (A36) and the socket cover plate (A30) are fixed on the supporting plate (A1), the circuit board II (A42) is in contact with the circuit board frame (A41), the bubble (A38) is in contact with the bubble connecting seat (A39), the circuit board I (A18) and the aviation socket (A40) are in contact with the base (A15), and the sealing rubber pad (A16) is in contact with the bottom plate (A17).

2. The two-degree-of-freedom high-precision digital turret according to claim 1, wherein: the driving part is as follows: a pitch shaft gland bush (B1) is in contact with a pitch motor shell (B9), a first separated angular contact bearing (B4) and a bearing gland bush (B7) are fixed on the pitch motor shell (B9), a pitch shaft worm (B3) is in contact with a first deep groove ball bearing (B2) and a first bearing pressing ring (B6), a pressing plate (B5) is in contact with a coupling (B8), a pitch motor shell (B9) is in contact with a pitch shaft stepping motor belt encoder (B10), a second deep groove ball bearing (B15) and a second separated angular contact bearing (B17) are fixed on a vertical motor shell (B12), one ends of the second bearing pressing ring (B14) are in contact with a vertical motor shell (B12) and the other ends of the second deep groove ball bearing and the second bearing pressing ring bearing are in contact with a vertical worm (B13), and the vertical shaft gland bush (B16), the vertical shaft bearing gland bush (B18) and the vertical shaft stepping motor belt encoder (B11) are fixed on the vertical motor shell (B12), and the second bearing pressing ring (B14) is in contact with a vertical worm (B13).

3. The two-degree-of-freedom high-precision digital turret according to claim 1, wherein: the main box body is as follows: the limiting damping ring (A19) is mechanically connected with the turntable frame (A8), and the supporting plate (A1) is mechanically connected with the thin rotating arm (A2), the upper rotating shaft (A4), the thick rotating arm (A29), the turntable frame (A8), the front cover plate (A37), the rear cover plate (A43) and the vertical shaft (A13); the upper rotating shaft (A4) and the vertical shaft (A13) are respectively connected with the turntable frame (A8) in a rotating mode, and the vertical shaft (A13) is fixedly connected with the base (A15).

4. The two-degree-of-freedom high-precision digital turret according to claim 3, wherein: the thin rotating arm (A2), the rotary table frame (A8) and the base (A15) are all provided with a rotation stopping assembly, namely mechanical limit.