CN116225075A - Electromechanical integrated combined limiting device for reciprocating motion of rotary table - Google Patents

Electromechanical integrated combined limiting device for reciprocating motion of rotary table Download PDF

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Publication number
CN116225075A
CN116225075A CN202211552915.4A CN202211552915A CN116225075A CN 116225075 A CN116225075 A CN 116225075A CN 202211552915 A CN202211552915 A CN 202211552915A CN 116225075 A CN116225075 A CN 116225075A
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CN
China
Prior art keywords
stop block
proximity switch
turntable
fixed stop
limiting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211552915.4A
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Chinese (zh)
Inventor
潘加松
杨春鹏
张毅
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724 Research Institute Of China Shipbuilding Corp
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724 Research Institute Of China Shipbuilding Corp
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Publication date
Application filed by 724 Research Institute Of China Shipbuilding Corp filed Critical 724 Research Institute Of China Shipbuilding Corp
Priority to CN202211552915.4A priority Critical patent/CN116225075A/en
Publication of CN116225075A publication Critical patent/CN116225075A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00Control of position or direction
    • G05D3/12Control of position or direction using feedback

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Machine Tool Units (AREA)

Abstract

The invention discloses a rotary table reciprocating motion electromechanical integrated combined limiting device which comprises a mechanical limiting part and an electrical limiting part, and consists of a base, a shifting block, a rotating shaft, a movable stop block, a fixed stop block I, a fixed stop block II, a proximity switch I and a proximity switch II. The invention has the advantages that the mechanical limit and the electrical limit of the turntable are integrally combined, the structure is independent, the installation is convenient, the mechanical limit and the electrical limit are triggered by the movable stop block, and the positioning precision is high; the electrical limit is triggered firstly, and then the mechanical limit is triggered, so that the dual protection requirement of the reciprocating motion of the turntable is met.

Description

Electromechanical integrated combined limiting device for reciprocating motion of rotary table
Technical Field
The invention relates to the field of turntable movement limiting.
Background
The turntable is precision electromechanical equipment, and according to the load characteristic requirement, some turntable rotating shafts do not need to continuously rotate by 360 degrees and only need to reciprocate in a limited motion range, so that a limiting device is required to limit the reciprocating motion of the rotating shafts. The limiting device is used for guaranteeing safe movement of the rotary table and can prevent damage caused by overrun of the rotary table. The rotary table motion limiting device limits the motion of the rotary part of the rotary table by adopting different mechanical and electrical structures, and for the rotary table which needs to realize forward and reverse reciprocating motion limiting, the common fixed mechanical limiting structure can interfere in the forward and reverse rotation process of the rotary table, so that the requirement of the range of the rotary table motion angle cannot be met.
The patent (CN 108594863B) discloses a limit structure and a limit method for a positive and negative 180-degree rotary table, which adopt a simple pendulum type mechanical limit structure and an electric limit of a photoelectric switch. The invention has the following disadvantages: mechanical limiting devices and electrical limiting devices are respectively arranged on two sides of the rotating shaft, a shifting fork is required to be additionally arranged, information of an angle encoder is required to be collected to trigger an electrical signal, the structural form is complex and dispersed, and the positioning accuracy is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the electromechanical integrated combined limiting device for the reciprocating motion of the rotary table, which is integrally positioned and installed on one side of the rotary shaft of the rotary table, and the two ends of the movable stop block trigger the electric limiting and the mechanical limiting respectively, so that the structure of the invention is independent, the installation is convenient, the positioning precision is high, and the double protection function is realized.
The technical scheme for realizing the purpose of the invention is as follows: the device comprises a base, a shifting block, a rotating shaft, a movable stop block, a fixed stop block I, a fixed stop block II, a proximity switch I and a proximity switch II; the upper surface of the base is provided with a rotating shaft, a first fixed stop block, a second fixed stop block, a first proximity switch and a second proximity switch; the shifting block is arranged at the rotating part of the turntable.
Furthermore, the bottom of the base is provided with a positioning boss, and the limiting device is integrally positioned and installed on the rotary table shell.
Furthermore, the movable stop block is provided with a shaft hole which is matched with the rotating shaft and rotates around the rotating shaft under the stirring of the shifting block.
Furthermore, the first fixed stop block and the second fixed stop block are arranged in a far-near staggered mode relative to the rotating shaft of the rotary table.
Furthermore, under the two limit positions, the included angles of the two sides of the movable stop block, which are contacted with the shifting block, are complementary with the included angles of the two sides of the movable stop block, which are contacted with the fixed stop block I and the fixed stop block II.
Furthermore, the two sides of the movable stop block, which are far away from the rotating shaft of the rotating table, are respectively provided with a first proximity switch and a second proximity switch, and the two proximity switches respectively detect two extreme positions of the movable stop block (4).
The invention has the beneficial effects that:
(1) The turntable mechanical limiting device and the electric limiting device are integrally combined, have independent structures, are convenient to install, are triggered by the movable stop blocks, and have high positioning accuracy;
(2) The electric limit is triggered firstly, and then the mechanical limit is triggered, so that the double protection requirements of the electric limit and the mechanical limit of the reciprocating motion of the turntable are met.
Drawings
Fig. 1 is a schematic diagram of a structure of the invention for limiting the anticlockwise movement of a turntable.
Fig. 2 is a schematic diagram of the structure of the invention for limiting the clockwise movement of the turntable.
Reference numerals in the figures: 1. a base; 2. a shifting block; 3. a rotating shaft; 4. a movable stop block; 5. fixing a first stop block; 6. a second fixed stop block; 7. a first proximity switch; 8. and a second proximity switch.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the preferred embodiment of the present invention includes a base 1, a dial 2, a rotary shaft 3, a movable stopper 4, a fixed stopper 1, a fixed stopper second 6, a proximity switch first 7, a proximity switch second 8, and the like. And each unit combination completes the mechanical limiting and electrical limiting functions of the turntable. The upper surface of the base 1 is provided with a rotating shaft 3, a first fixed stop block 5, a second fixed stop block 6, a first proximity switch 7 and a second proximity switch 8; the shifting block 2 is arranged at the rotating part of the turntable; the movable stop block 4 is connected with the rotating shaft 3 through shaft hole matching. The first fixed stop block 5 and the second fixed stop block 6 are arranged in a far-near staggered way relative to the rotary shaft of the rotary table.
The positioning boss is designed at the bottom of the base 1, and the limiting device is integrally positioned and installed on the rotary table shell.
The movable stop block 4 is provided with a mounting hole which is matched with the rotating shaft 3, and friction force is formed between the upper hole of the movable stop block 4 and the rotating shaft 3 by adjusting the matching clearance of the shaft holes, so that the movable stop block can be kept relatively static under the condition of no external force pushing; when the turntable rotates, the shifting block 2 rotates along with the turntable, when the turntable reaches the limit position, the shifting block 2 shifts the movable stop block 4 to rotate, and the side surface of the movable stop block 4, which is close to one end of the turntable rotating shaft, is contacted with the fixed stop block I5 or the fixed stop block II 6, so that the mechanical limiting purpose is achieved.
The movable stop block 4 is respectively provided with a first proximity switch 7 and a second proximity switch 8 at two sides of the far end of the rotating shaft of the rotating table, the first proximity switch 7 and the second proximity switch 8 are metal induction type proximity switches, the contacts of the first proximity switch and the second proximity switch are normally closed contacts, the side face of the far end of the movable stop block 4 and the first proximity switch 7 and the second proximity switch 8 are triggered by distance induction, when the rotating table reaches the limit position through adjusting the installation positions of the first proximity switch 7 and the second proximity switch 8, the electric limit is triggered firstly, and the mechanical limit is triggered again under the condition of failure of the electric limit, so that double limit protection is formed.
Under the two limit positions, the two included angles of the movable stop block 4 contacted with the shifting block 2 are complementary with the two included angles of the movable stop block 4 contacted with the fixed stop block I5 and the fixed stop block II 6, so that the same limit angle is formed by the reciprocating motion of the turntable.

Claims (6)

1. A rotary table reciprocating motion electromechanical integrated combined limiting device is characterized in that:
the device comprises a base (1), a shifting block (2), a rotating shaft (3), a movable stop block (4), a fixed stop block I (5), a fixed stop block II (6), a proximity switch I (7) and a proximity switch II (8); the rotating shaft (3), the first fixed stop block (5), the second fixed stop block (6), the first proximity switch (7) and the second proximity switch (8) are arranged on the base (1); the shifting block (2) is arranged at the rotating part of the turntable.
2. The turntable reciprocating electromechanical integrated limiting device according to claim 1, wherein:
the bottom of the base (1) is provided with a positioning boss, and the whole positioning device is arranged at the fixed part of the turntable.
3. The turntable reciprocating electromechanical integrated limiting device as claimed in claim 2, wherein:
the movable stop block (4) is provided with a shaft hole which is matched with the rotating shaft (3), and the movable stop block is rotated around the rotating shaft (3) under the stirring of the shifting block (2).
4. A turret-reciprocating mechatronic combination stop device according to claim 3, characterized in that:
the first fixed stop block (5) and the second fixed stop block (6) are arranged in a far-near staggered mode relative to the rotary shaft of the rotary table.
5. The turntable reciprocating electromechanical integrated limiting device as claimed in claim 4, wherein:
under two limit positions, the two included angles of the movable stop block (4) contacted with the shifting block (2) are complementary with the two included angles of the movable stop block (4) contacted with the fixed stop block I (5) and the fixed stop block II (6).
6. The turntable reciprocating electromechanical integrated limiting device as claimed in claim 5, wherein:
the two sides of the movable stop block (4) far away from the rotating shaft of the rotating table are respectively provided with a first proximity switch (7) and a second proximity switch (8), and the two proximity switches respectively detect two limit positions of the movable stop block (4).
CN202211552915.4A 2022-12-06 2022-12-06 Electromechanical integrated combined limiting device for reciprocating motion of rotary table Pending CN116225075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211552915.4A CN116225075A (en) 2022-12-06 2022-12-06 Electromechanical integrated combined limiting device for reciprocating motion of rotary table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211552915.4A CN116225075A (en) 2022-12-06 2022-12-06 Electromechanical integrated combined limiting device for reciprocating motion of rotary table

Publications (1)

Publication Number Publication Date
CN116225075A true CN116225075A (en) 2023-06-06

Family

ID=86579289

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211552915.4A Pending CN116225075A (en) 2022-12-06 2022-12-06 Electromechanical integrated combined limiting device for reciprocating motion of rotary table

Country Status (1)

Country Link
CN (1) CN116225075A (en)

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