CN215395282U

CN215395282U - Manipulator for numerical control machining

Info

Publication number: CN215395282U
Application number: CN202120318184.1U
Authority: CN
Inventors: 林成勇
Original assignee: Wuhan Sigma Tech Co ltd
Current assignee: Wuhan Sigma Tech Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-01-04
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a mechanical arm for numerical control machining, which relates to the technical field of mechanical arms and comprises a shell, a clamping mechanism and an anti-friction mechanism, wherein symmetrical clamps are arranged at two ends of the bottom of the shell; the clamping mechanism comprises a driving motor located inside the shell, a driving gear is arranged at the output end of the driving motor, driven gears are meshed with the two sides of the driving gear, and a reciprocating screw rod is connected inside the two driven gears in a penetrating mode. According to the utility model, the clamping mechanism is arranged, the driving motor is controlled to drive the driving gear to rotate, the sleeve is driven to move towards the outer wall of the reciprocating screw rod under the action of power until the clamp and the workpiece are close to each other for clamping, and the roller is driven to move on the inner wall of the mounting plate under the connecting action of the connecting frame, so that the friction force in the clamping process can be reduced to a certain extent, and the process is convenient for fixing and clamping the workpiece.

Description

Manipulator for numerical control machining

Technical Field

The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm for numerical control machining.

Background

A robot is an automatic manipulator that simulates some of the motion functions of a human hand and arm to grasp, transport objects or manipulate tools according to a fixed program. The mechanical arm can replace the heavy labor of people to realize the mechanization and automation of production, can be operated under harmful environment to protect personal safety, and is widely applied to mechanical manufacturing, metallurgy, electronics, light industry, atomic energy and other departments, thereby providing the mechanical arm for numerical control machining.

But current manipulator structure is comparatively single, and is relatively poor to the fixed effect of work piece, easily leads to the work piece to appear the circumstances such as skew in the in-process of processing to can influence the processing precision of work piece, simultaneously to the in-process of work piece centre gripping, anchor clamps and work piece direct contact can lead to the circumstances such as wearing and tearing to appear in the work piece, thereby can influence the processingquality of work piece.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the manipulator for numerical control machining is provided for solving the problem that the workpiece is worn and the like due to the fact that an existing mechanic crosses the workpiece fixing effect and the direct contact between a clamp and the workpiece.

In order to achieve the purpose, the utility model provides the following technical scheme: a manipulator for numerical control machining comprises a shell, a clamping mechanism and an anti-friction mechanism, wherein symmetrical clamps are arranged at two ends of the bottom of the shell;

wherein, fixture is including being located the inside driving motor of shell, driving motor's output is provided with the driving gear, the both sides meshing of driving gear has driven gear, two driven gear's inside through connection has reciprocal lead screw, the outer wall of reciprocal lead screw is provided with two symmetrical sleeves, telescopic top is connected with the link, the outer wall of link is provided with the gyro wheel, the outer wall of gyro wheel is provided with the mounting panel in the inside that is located the shell, fixture is still including being located the inside draw-in groove of sleeve, one side inner wall of draw-in groove is provided with the lug, one side of anchor clamps is provided with the connecting block, the one end of connecting block and the inside that is located anchor clamps are provided with second coupling spring.

As a still further scheme of the utility model: the anti-friction mechanism comprises a rubber pad located on one side of the clamp, a telescopic rod is connected to one side of the rubber pad and located inside the clamp, supporting springs are arranged inside the telescopic rod, electromagnets are installed on two sides of the telescopic rod, a transverse plate is arranged on one side of the electromagnets, a clamping rod is arranged on one side of the transverse plate, and a plurality of first connecting springs are arranged between the clamping rod and the transverse plate.

As a still further scheme of the utility model: the driving motor is rotatably connected with the driving gear through a rotating shaft and a coupler, and the driven gear is rotatably connected with the reciprocating screw rod through a bearing.

As a still further scheme of the utility model: two the inside of telescopic is provided with and reciprocal lead screw assorted internal thread, and the internal thread opposite direction.

As a still further scheme of the utility model: the connecting frame is rotatably connected with the roller through a rotating shaft and a bearing, and the inner wall of the mounting plate is matched with the outer wall of the roller.

As a still further scheme of the utility model: the inside of anchor clamps is provided with and telescopic link assorted recess, the inside of shell is provided with the battery, the electro-magnet passes through wire electric connection with the battery.

As a still further scheme of the utility model: the kelly is the T font, the both sides inner wall of telescopic link is provided with the draw-in groove with kelly assorted.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the arrangement of the clamping mechanism, the driving motor is controlled to drive the driving gear to rotate, the sleeve is driven to move in opposite directions on the outer wall of the reciprocating screw rod under the action of power until the clamp and the workpiece are close to each other for clamping, and at the moment, the roller is driven to move on the inner wall of the mounting plate under the connecting action of the connecting frame, so that the friction force in the clamping process can be reduced to a certain extent, and the process is convenient for fixing and clamping the workpiece;

2. through setting up antifriction mechanism, the rubber pad can play the guard action to it, and when it need be changed, the operation of control electro-magnet drives the kelly and keeps away from the draw-in groove in the telescopic link under magnetic adsorption, and first connecting spring compresses simultaneously, separates with the telescopic link completely until the kelly to be convenient for dismantle the change with the rubber pad, avoid its long-time use to appear ageing wearing and tearing influence protecting effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

FIG. 3 is an enlarged view of a portion of the present invention at A;

fig. 4 is a schematic view of the internal structure of the clamp of the present invention.

In the figure: 1. a housing; 2. a clamp; 3. a drive motor; 4. a driving gear; 5. a driven gear; 6. a reciprocating screw rod; 7. A sleeve; 8. a connecting frame; 9. a roller; 10. mounting a plate; 11. a rubber pad; 12. a telescopic rod; 13. a support spring; 14. An electromagnet; 15. a transverse plate; 16. a first connecting spring; 17. a clamping rod; 18. a card slot; 19. a bump; 20. connecting blocks; 21. and a second connecting spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1 to 4, in the embodiment of the present invention, a robot for numerically controlled machining includes a housing 1, a clamping mechanism and an anti-friction mechanism, wherein symmetrical clamps 2 are disposed at two ends of the bottom of the housing 1;

wherein, fixture is including being located the inside driving motor 3 of shell 1, driving motor 3's output is provided with driving gear 4, the both sides meshing of driving gear 4 has driven gear 5, the inside through connection of two driven gear 5 has reciprocal lead screw 6, the outer wall of reciprocal lead screw 6 is provided with two symmetrical sleeve 7, the top of sleeve 7 is connected with link 8, the outer wall of link 8 is provided with gyro wheel 9, the outer wall of gyro wheel 9 is provided with mounting panel 10 in the inside that is located shell 1, fixture is still including being located the inside draw-in groove 18 of sleeve 7, one side inner wall of draw-in groove 18 is provided with lug 19, one side of anchor clamps 2 is provided with connecting block 20, the one end of connecting block 20 is provided with second connecting spring 21 in the inside that is located anchor clamps 2.

Please refer to fig. 3, the anti-friction mechanism includes a rubber pad 11 located at one side of the clamp 2, a telescopic rod 12 is connected to one side of the rubber pad 11 and located inside the clamp 2, a supporting spring 13 is disposed inside the telescopic rod 12, electromagnets 14 are installed at two sides of the telescopic rod 12, a transverse plate 15 is disposed at one side of the electromagnets 14, a clamping rod 17 is disposed at one side of the transverse plate 15, and a plurality of first connecting springs 16 are disposed between the clamping rod 17 and the transverse plate 15, so that the clamp 2 can be effectively prevented from directly contacting with a workpiece through the anti-friction mechanism, and the workpiece can be effectively protected.

Please refer to fig. 1, the driving motor 3 is rotatably connected to the driving gear 4 through a rotating shaft and a coupling, and the driven gear 5 is rotatably connected to the reciprocating screw rod 6 through a bearing, so that the driving gear 4 is driven to rotate by the driving motor 3, and the reciprocating screw rod 6 is driven to rotate by the driven gear 5 under the action of power.

Please refer to fig. 1, the two sleeves 7 are internally provided with internal threads matching with the reciprocating screw rod 6, and the directions of the internal threads are opposite, so that the two sleeves 7 can move oppositely or reversely on the outer wall of the reciprocating screw rod 6 under the action of power.

Please refer to fig. 1, the connecting frame 8 is rotatably connected to the roller 9 through a shaft and a bearing, and the inner wall of the mounting plate 10 is engaged with the outer wall of the roller 9, so that the connecting frame 8 and the roller 9 can rotate on the inner wall of the mounting plate 10 through the shaft, and the friction force can be reduced to a certain extent.

Please refer to fig. 4, the inside of the clamp 2 is provided with a groove matched with the telescopic rod 12 so as to fix the telescopic rod 12 through the groove, the inside of the housing 1 is provided with a storage battery, and the electromagnet 14 is electrically connected with the storage battery through a lead so as to provide power for the electromagnet 14 through the storage battery.

Please refer to fig. 4, the locking rod 17 is T-shaped, and the inner walls of the two sides of the telescopic rod 12 are provided with locking slots matched with the locking rod 17, so that the locking rod 17 can be effectively locked and fixed by the locking slots, and the telescopic rod 12 is prevented from moving freely.

The working principle of the utility model is as follows: when the clamping device is used, the driving motor 3 is controlled to drive the driving gear 4 to rotate under the action of the storage battery, when the driving gear 4 is meshed with the driven gear 5, the reciprocating screw rod 6 is driven to rotate under the action of power, the sleeve 7 moves oppositely on the outer wall of the reciprocating screw rod 6 at the moment until the clamp 2 and a workpiece are driven to be close to each other for clamping, the roller 9 is driven to move on the inner wall of the mounting plate 10 under the connecting action of the connecting frame 8 at the moment, the friction force in the clamping process can be reduced to a certain extent, the workpiece is convenient to be fixedly clamped in the process, meanwhile, when the clamp 2 needs to be replaced, the lug 19 is pressed at first, the lug 19 moves in a matched sliding groove in the sleeve 7 at the moment until the lug is contacted with the connecting block 20, the second connecting spring 21 is compressed under the action of stress, the connecting block 20 has no supporting force, and a user can pull out the clamp 2 through external force for replacement, when the work piece contacts with rubber pad 11, rubber pad 11 can play the guard action to it, supporting spring 13 can effectively stretch out and draw back in the inside of telescopic link 12 according to the big or small specification of work piece simultaneously, when rubber pad 11 uses for a long time and need change, at first control electro-magnet 14 operation, drive the draw-in groove in telescopic link 12 is kept away from to kelly 17 under magnetic adsorption this moment, first connecting spring 16 compresses simultaneously, until kelly 17 separates with telescopic link 12 completely, thereby be convenient for dismantle rubber pad 11 and change, avoid its long-time use to appear ageing wear and tear influence protecting effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The mechanical arm for the numerical control machining comprises a shell (1), a clamping mechanism and an anti-friction mechanism, and is characterized in that symmetrical clamps (2) are arranged at two ends of the bottom of the shell (1);

wherein, the clamping mechanism comprises a driving motor (3) positioned inside a shell (1), the output end of the driving motor (3) is provided with a driving gear (4), the two sides of the driving gear (4) are engaged with driven gears (5), the insides of the two driven gears (5) are connected with a reciprocating lead screw (6) in a penetrating way, the outer wall of the reciprocating lead screw (6) is provided with two symmetrical sleeves (7), the top end of each sleeve (7) is connected with a connecting frame (8), the outer wall of each connecting frame (8) is provided with a roller (9), the outer wall of each roller (9) and the inside of the shell (1) are provided with a mounting plate (10), the clamping mechanism further comprises a clamping groove (18) positioned inside the sleeve (7), the inner wall of one side of the clamping groove (18) is provided with a convex block (19), one side of the clamp (2) is provided with a connecting block (20), and a second connecting spring (21) is arranged at one end of the connecting block (20) and positioned in the clamp (2).

2. The manipulator for numerical control machining according to claim 1, characterized in that the antifriction mechanism comprises a rubber pad (11) located on one side of the clamp (2), a telescopic rod (12) is connected to one side of the rubber pad (11) and located inside the clamp (2), a support spring (13) is arranged inside the telescopic rod (12), electromagnets (14) are installed on two sides of the telescopic rod (12), a transverse plate (15) is arranged on one side of the electromagnets (14), a clamping rod (17) is arranged on one side of the transverse plate (15), and a plurality of first connecting springs (16) are arranged between the clamping rod (17) and the transverse plate (15).

3. The manipulator for numerical control machining according to claim 1, wherein the driving motor (3) is rotatably connected with the driving gear (4) through a rotating shaft and a coupling, and the driven gear (5) is rotatably connected with the reciprocating screw rod (6) through a bearing.

4. The manipulator for numerical control machining according to claim 1, characterized in that the two sleeves (7) are internally provided with internal threads matching with the reciprocating screw rod (6) and the internal threads are opposite in direction.

5. The manipulator for numerical control machining according to claim 1, wherein the connecting frame (8) is rotatably connected with the roller (9) through a rotating shaft and a bearing, and the inner wall of the mounting plate (10) is matched with the outer wall of the roller (9).

6. The manipulator for numerical control machining according to claim 2, wherein a groove matched with the telescopic rod (12) is formed in the clamp (2), a storage battery is arranged in the housing (1), and the electromagnet (14) is electrically connected with the storage battery through a lead.

7. The mechanical hand for numerical control machining according to claim 2, wherein the clamping rod (17) is T-shaped, and clamping grooves matched with the clamping rod (17) are formed in the inner walls of two sides of the telescopic rod (12).