CN211053732U

CN211053732U - Controllable locking type rotating mechanism capable of returning

Info

Publication number: CN211053732U
Application number: CN201921488494.7U
Authority: CN
Inventors: 宋伟; 胡峰; 戴岩
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Motor Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-07-21
Anticipated expiration: 2029-09-06

Abstract

The utility model provides a controllable locking formula slewing mechanism that can return, which comprises a base, the gear, the retaining member, stroke pole and baffle, wherein the gear can carry out every single move and set up on the base with rotating, the retaining member, establish on the base along the axial direction telescopically of perpendicular to gear, it has extended position and withdrawal position, and compress tightly the gear when the retaining member is in extended position, the stroke pole is fixed to be established on the terminal surface of gear, it can rotate with the gear is synchronous, the baffle stretches out or its setting of withdrawal is to butt stroke pole when the retaining member moves towards the withdrawal position with the retaining member in step, and drive gear rotates the return. The utility model relates to a single rotational degree of freedom joint can hover, lock at great angle within range arbitrary angle, has the advantage that the flexibility is good, convenient operation.

Description

Controllable locking type rotating mechanism capable of returning

Technical Field

The utility model belongs to the technical field of mechanical joint, concretely relates to controllable locking formula slewing mechanism that can return.

Background

The prosperous development of the automobile industry is inseparable from the recent scientific and technical progress, and with the scientific and technical progress, the related technology of the mechanical joint is widely applied to the industrial production line at present, for example, the whole automobile is painted through a multi-degree-of-freedom mechanical arm in the field of automobile production.

In the existing production workshop, partial stations need to be positioned and locked at any angle, for example, automobiles are baked, because different automobile profiles are different, a baking rack needs to be frequently moved to bake the surfaces of the automobiles, the existing baking lamp mainly has a handheld type and a vertical column type, the handheld type needs operators to keep fixed postures for a long time, and the labor intensity is high; the flexibility of column is relatively poor, can not adjust roast lamp position and illumination angle at will, needs often to remove the griddle and toasts the car surface, leads to degree of automation low, the limitation is great, inefficiency.

Based on this, the present application provides a controllable locking type rotating mechanism that can return in a wide range of positions.

SUMMERY OF THE UTILITY MODEL

To prior art's defect, the utility model provides a controllable locking formula slewing mechanism that can return is a single rotational degree of freedom joint, can hover, lock at great angle within range arbitrary angle, has the advantage that the flexibility is good, convenient operation.

In order to achieve the above object, the utility model provides a controllable locking formula slewing mechanism that can return, include:

a base;

a gear capable of pitching rotation, which is arranged on the base;

a locking member having an extended position and a retracted position, telescopically arranged on the base in a direction perpendicular to the axial direction of the gear, the locking member being arranged to press the gear in the extended position;

the stroke rod can synchronously rotate with the gear and is fixedly arranged on the end surface of the gear; and

the baffle that stretches out or retract with the retaining member in step, the baffle sets up to butt the stroke pole when the retaining member moves towards the retracted position to drive gear rotates the return.

The above technical scheme of the utility model, carry out the locking of gear through setting up the retaining member, when the retaining member is in the extended position, use the gear locking in the position of hovering, when the retaining member is in the withdrawal position, the return of baffle can be through stroke pole drive gear rotation return to realize that after normal use finishes at every turn, the gear all is in the state behind the normal return.

Furthermore, slewing mechanism includes the axle, and the axle slides and sets up on the base, and retaining member, baffle are fixed respectively on the axle, through the extension or the withdrawal of axle, realize that retaining member and baffle stretch out or withdraw in step.

The utility model discloses the power of axis is preferred only, can select for example depression bar formula mechanical structure, can select pneumatic structure, can also select electronic structure, when using in the workshop, preferably uses the pneumatic structure of air supply as power, for example adopts the linkage mode of cylinder and well hourglass solenoid valve, carries out the extension of axle, withdrawal control, and it has the advantage that the structure is small, convenient to use; let out the solenoid valve in wherein adopting, realize that the cylinder loses heart after, drive axle, retaining member and baffle return to initial condition, at this moment, let out under two coils of battery valve all do not give under the circumstances of electricity in this, the antechamber and the back chamber of cylinder all do not have pressure, at this moment, can make the cylinder action through less effort to accomplish the process of hovering to the gear optional position.

Correspondingly, the return process of the connecting part and the hovering process at any position can be respectively carried out in a mode of a double-stroke air cylinder.

Further, the gears include a first gear and a second gear that are meshed with each other.

Furthermore, the number of teeth of the second gear is greater than that of the teeth of the first gear, and the first gear can rotate at a large angle by rotating the second gear at a small angle, for example, the transmission ratio between the second gear and the first gear is 1: 2.

further, slewing mechanism still includes backup pad, adapting unit, and wherein the backup pad is fixed on the base, and first gear, second gear are established in the backup pad through first installation axle, second installation axle respectively, and adapting unit sets up to rotate in step with first gear, and when the retaining member was in the extended position, the retaining member compressed tightly the second gear, because the meshing relation between second gear and the first gear, first gear also can't rotate.

Furthermore, the stroke rod is arranged on the second gear, a guide groove which takes the second installation shaft as a rotation center is arranged on the supporting plate, and the stroke rod is positioned in the guide groove which is an arc-shaped groove.

Further, the locking member has a mating surface that matches the outer profile of the gear.

Furthermore, the matching surface is an arc surface, an elliptical surface, a U-shaped surface, a V-shaped surface or a trapezoidal surface.

Correspondingly, the mating surface is preferably provided with a deformable flexible pad, such as a relatively hard rubber or the like.

Further, the baffle is equipped with stroke pole complex breach, and the gear is in the return state under, and the stroke pole is located the breach, and the primary function of breach can not produce and rock under the gear is in the return state.

The utility model discloses possess following beneficial effect:

the rotating mechanism of the utility model has single rotational freedom, can hover freely in a larger range and lock, can effectively solve the problems of adapting to the working posture of any position and keeping long-time fixation, and has compact structure, small volume and convenient use; after the locking device is used, automatic return can be carried out, the locking and return processes are realized only through single power, the structure is simple, the automation degree is high, the flexibility is good, and the practicability is high.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the rotating mechanism of the present invention;

fig. 2 is an exploded view of the rotating mechanism of the present invention;

fig. 3 is a schematic structural view of the gear portion of the present invention.

Detailed Description

As shown in fig. 1-3, a controllable locking type rotation mechanism capable of returning comprises a base 1, a first gear 2, a second gear 3, a locking member 4, a stroke rod 5, a baffle 6, a shaft 7 and two support plates 8.

Wherein two backup pads 8 are fixed on base 1, and first gear 2, second gear 3 set up in backup pad 8 through first installation axle 9, second installation axle 10 respectively, are equipped with the through-hole on base 1, and axle 7 runs through this through-hole to can stretch out and draw back along the direction of the first installation axle 9 of perpendicular to (second installation axle 10), retaining member 4 is fixed at the left end of axle 7, can follow axle 7 and stretch out and draw back, and it has stretching out position and withdrawal position.

The stroke rod 5 is fixed on the end face of the second gear 3 and rotates synchronously with the second gear 3, the baffle 6 is fixed on the shaft 7 by means of a support frame 11 and a connecting rod 12, and extends and retracts along with the shaft 7, and correspondingly, a sliding groove 13 for the connecting rod 12 to pass through is arranged on the support plate 8.

In the embodiment, the connecting part 14 rotating synchronously with the first gear 2 is provided as the output end of the mechanism, wherein after the connecting part 14 is suspended to a required position, the shaft 7 is extended, for example, by means of cylinder driving, motor driving and the like, the locking part 4 is driven to move to the extended position, the locking part 4 presses the second gear 3 and limits the rotation of the second gear 3, and because the second gear 3 is meshed with the first gear 2, the first gear 2 is also pressed and locked, so that the connecting part 14 is kept to have a unique posture.

The number of teeth of the first gear 2 is smaller than that of the second gear 3, so that the first gear 2 can rotate in a large angle by rotating the second gear 3 in a small angle.

In order to increase the locking effect of the locking element 4, the locking element 4 has a mating surface which is adapted to the outer contour of the gear wheel, preferably a circular arc surface, and on which a rubber pad is arranged for increased stability.

When needs return, with axle 7 withdrawal, drive baffle 6 and move to the withdrawal position, at this in-process, baffle 6 can contact with stroke pole 5, offset, and drive stroke pole 5 rotates, and then drives second gear 3 return to drive first gear 2 return through second gear 3.

Specifically, the support plate 8 is provided with a guide groove 15 having the second mounting shaft 10 as a rotation center, the stroke lever 5 is located in the guide groove 15, and the guide groove 15 serves as a guide track groove for the stroke lever 5.

A notch 16 may be further formed in the baffle 6 at a position flush with the second mounting shaft 10, and when the second gear 3 is in the return state, the stroke rod 5 is located in the notch 16 to prevent the second gear 3 from slightly shaking.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the invention.

Claims

1. The utility model provides a controllable locking formula slewing mechanism that can return which characterized in that includes:

a base (1);

a gear capable of pitching rotation, which is provided on the base (1);

a locking member (4) having an extended position and a retracted position, telescopically arranged on the base (1) in an axial direction perpendicular to the gear wheel, the locking member (4) being arranged to press the gear wheel in the extended position;

the stroke rod (5) can synchronously rotate with the gear and is fixedly arranged on the end surface of the gear; and

a shutter (6) that is extended or retracted in synchronism with the locking member (4), the shutter (6) being arranged to abut against the trip lever (5) when the locking member (4) moves toward the retracted position, and to drive the gear to rotate back.

2. A returnable, controllably locked, rotational mechanism as claimed in claim 1, further comprising a shaft (7), wherein said shaft (7) is slidably disposed on said base (1), and said locking member (4) and said blocking plate (6) are fixed to said shaft (7) respectively.

3. A returnable, controllably lockable rotary mechanism according to claim 1 or 2, characterized in that the gears comprise a first (2) and a second (3) intermeshing gear.

4. A resettable controllably lockable rotary mechanism as claimed in claim 3, wherein the second gear (3) has a greater number of teeth than the first gear (2).

5. A returnable, controllably lockable rotary mechanism according to claim 3, characterized by a support plate (8), a connecting member (14);

the supporting plate is fixed on the base (1);

the first gear (2) and the second gear (3) are respectively arranged on the supporting plate (8) through a first mounting shaft (9) and a second mounting shaft (10);

the connecting part (14) is arranged to rotate synchronously with the first gear (2);

wherein the retaining member (4) compresses the second gear (3) when the retaining member (4) is in the extended position.

6. A returnable controllable locking type rotating mechanism according to claim 5, wherein the stroke rod (5) is disposed on the second gear (3), the supporting plate (8) is provided with a guiding groove (15) using the second mounting shaft (10) as a rotation center, and the stroke rod (5) is located in the guiding groove (15).

7. A resettable, controllably lockable rotary mechanism as claimed in claim 1, wherein the locking member (4) has mating surfaces that match the profile of the gear wheels.

8. A returnable, controllably lockable rotary mechanism as claimed in claim 7, wherein said mating surface is a circular, elliptical, U, V or trapezoidal surface.

9. A repositionable and controllably lockable rotary mechanism as defined in claim 7 wherein the mating surfaces are provided with deformable flexible pads.

10. A resettable, controllably lockable rotary mechanism as claimed in claim 1, wherein the stop (6) is provided with a notch (16) for engagement with the travel rod (5) and wherein the gear is in the reset position and the travel rod (5) is located in the notch.