CN114012457A

CN114012457A - Revolving stage locking mechanism with feedback function

Info

Publication number: CN114012457A
Application number: CN202111230238.XA
Authority: CN
Inventors: 马聘; 蒋运国; 李凯; 魏岳; 王坤; 杨铭东; 李亚静; 范绪强; 王兆新; 盖宪秋; 吕静
Original assignee: General Technology Group Dalian Machine Tool Co ltd
Current assignee: General Technology Group Dalian Machine Tool Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-02-08

Abstract

The invention discloses a turntable locking mechanism with a feedback function, which comprises a support frame (1), wherein a turntable (2) is rotatably supported at the center of the support frame (1), and the turntable locking mechanism is characterized in that: be provided with friction ring (3) in support frame (1), the bottom of revolving stage (2) be provided with brake block (4) of friction ring (3) contact are provided with hydraulic piston chamber in support frame (1) simultaneously, hydraulic piston intracavity swing joint has piston (5), brake block (4) are located between friction ring (3) and piston (5), the top of piston (5) is connected with connecting plate (6), and it has trigger connecting rod (7) to wear to have connect in support frame (1) the activity, the top of triggering connecting rod (7) and the bottom face contact of connecting plate (6), and the bottom of triggering connecting rod (7) then is articulated mutually with the one end of lever (8).

Description

Revolving stage locking mechanism with feedback function

Technical Field

The invention relates to mechanical equipment, in particular to a rotary table locking mechanism with a feedback function.

Background

In the case of automated machining, it is often necessary to rotate a workpiece to be machined in a certain axial direction, and this rotation is generally performed by a turntable. After the turntable drives the workpiece fixed on the turntable through the clamp to rotate to a proper angle, a locking mechanism in the turntable acts to limit the degree of freedom of a certain shaft in the rotating direction, and the main shaft can drive the cutter to process the workpiece. If the locking mechanism of the rotary table has a problem or a fault, the rotary table can deflect at a certain angle in the process of processing a workpiece, so that the processing precision is influenced, and the condition that the workpiece is scrapped and a cutter is scrapped can be caused in serious cases. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides the turntable locking mechanism with the feedback function, which has the advantages of simple structure, ingenious design and reasonable layout, and can detect whether the turntable is in a locking state at any time so as to prevent problems during processing.

The technical solution of the invention is as follows: the utility model provides a revolving stage locking mechanism with feedback function, includes support frame 1, the center department of support frame 1 rotates the support and has revolving stage 2, its characterized in that: a friction ring 3 is arranged in the support frame 1, a brake pad 4 which is in contact with the friction ring 3 is arranged at the bottom of the rotary table 2, a hydraulic piston cavity is arranged in the support frame 1, a piston 5 is movably connected in the hydraulic piston cavity, the brake pad 4 is positioned between the friction ring 3 and the piston 5, the top of the piston 5 is connected with a connecting plate 6, a trigger connecting rod 7 is movably penetrated in the support frame 1, the top end of the trigger connecting rod 7 is in contact with the bottom end surface of the connecting plate 6, and the bottom end of the trigger connecting rod 7 is in contact with one end of a lever 8,

the middle part of lever 8 rotates through pivot 9 and supports on support frame 1, and the other end of lever 8 then contacts with the bottom of signal trigger bar 10, signal trigger bar 10 swing joint is in support frame 1, is provided with signal trigger plate 11 at the middle part of signal trigger bar 10, signal trigger plate 11 is located between sensor 12 and the lower sensor 13, has still cup jointed reset spring 14 outside signal trigger bar 10 of signal trigger plate 11 top simultaneously, reset spring 14's both ends contact with support frame 1 and signal trigger plate 11 respectively.

Compared with the prior art, the invention has the following advantages:

the locking mechanism with the feedback function is simple in structure, ingenious in design and reasonable in layout, and aims at various problems caused by the fact that after the traditional rotary table is locked, workers cannot master and judge the current locking state. And the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Detailed Description

The following description will explain embodiments of the present invention with reference to the accompanying drawings. As shown in fig. 1, 2, and 3: a turntable locking mechanism with a feedback function comprises a support frame 1, wherein a turntable 2 is rotatably supported at the center of the support frame 1, a friction ring 3 is arranged in the support frame 1, a brake pad 4 in contact with the friction ring 3 is arranged at the bottom of the turntable 2, a hydraulic piston cavity is arranged in the support frame 1, a piston 5 is movably connected in the hydraulic piston cavity, the brake pad 4 is positioned between the friction ring 3 and the piston 5, a connecting plate 6 is connected at the top of the piston 5, a trigger connecting rod 7 is movably connected in the support frame 1 in a penetrating manner, the top end of the trigger connecting rod 7 is in contact with the bottom end surface of the connecting plate 6, and the bottom end of the trigger connecting rod 7 is hinged with one end of a lever 8,

The working process of the turntable locking mechanism with the feedback function provided by the embodiment of the invention is as follows: when the state 2 needs to be locked, a signal is sent to a hydraulic system through a control system, the hydraulic system pumps hydraulic oil into a hydraulic piston cavity, the piston 5 moves towards the direction of the brake pad 4 under the action of the oil pressure of the hydraulic oil until the piston 5 is tightly pressed on the brake pad 4, at the moment, the brake pad 4 is clamped by the friction ring 3 and the piston 5, and the rotary table 2 fixedly connected with the brake pad 4 is relatively fixed and cannot rotate relative to the support frame 1;

in the movement process, when the piston 5 moves downwards, the connecting plate 6 at the top end of the piston also moves downwards along with the piston and pushes the trigger connecting rod 7 below the piston to move downwards so as to drive the lever 8 at the bottom end of the trigger connecting rod 7 to swing, when the lever 8 swings, the signal trigger rod 10 connected to the other end of the lever moves upwards (at the moment, the reset spring 14 is compressed), the signal trigger plate 11 arranged in the middle of the signal trigger rod 10 moves along with the lever and is in contact with the upper sensor 12 above the signal trigger rod, the upper sensor 12 is triggered to send a signal to the control system, and at the moment, the control system judges that the rotary table is in a locking state;

when the previous machining operation is finished and the rotary table 2 needs to rotate again, the hydraulic system controls the piston 5 to move towards the direction far away from the brake pad 4, the brake pad 4 loses the constraint of the friction ring 3 and the piston 5 and recovers the degree of freedom again, and the rotary table 2 and the support frame 1 can rotate relatively;

in the process, the piston 5 moves upwards, the connecting plate 6 at the top end of the piston moves upwards along with the piston, the return spring 14 pushes the signal trigger rod 10 to move downwards, on one hand, the signal trigger plate 11 in the middle of the signal trigger rod 10 moves downwards, the lower sensor 13 is triggered to send a signal to the control system, and at the moment, the control system judges that the rotary table is in an unlocked state capable of freely rotating; on the other hand, the signal trigger lever 10 drives the lever 8 to swing in the opposite direction, so that the trigger link 7 contacting the lever 8 moves upward and returns to the initial position to perform the trigger movement in the next locking operation.

Claims

1. The utility model provides a revolving stage locking mechanism with feedback function, includes support frame (1), the center department of support frame (1) rotates to be supported has revolving stage (2), its characterized in that: a friction ring (3) is arranged in the support frame (1), a brake pad (4) in contact with the friction ring (3) is arranged at the bottom of the rotary table (2), a hydraulic piston cavity is arranged in the support frame (1), a piston (5) is movably connected in the hydraulic piston cavity, the brake pad (4) is positioned between the friction ring (3) and the piston (5), a connecting plate (6) is connected to the top of the piston (5), a trigger connecting rod (7) is movably connected in the support frame (1) in a penetrating manner, the top end of the trigger connecting rod (7) is in contact with the bottom end surface of the connecting plate (6), and the bottom end of the trigger connecting rod (7) is in contact with one end of a lever (8),

the middle part of lever (8) rotates through pivot (9) and supports on support frame (1), and the other end of lever (8) then contacts with the bottom of signal trigger bar (10), signal trigger bar (10) swing joint is in support frame (1), is provided with signal trigger plate (11) at the middle part of signal trigger bar (10), signal trigger plate (11) are located and are gone up between sensor (12) and lower sensor (13), still cup jointed reset spring (14) outside signal trigger bar (10) of signal trigger plate (11) top simultaneously, the both ends of reset spring (14) contact with support frame (1) and signal trigger plate (11) respectively.