CN212411858U

CN212411858U - Limit switch convenient to adjust for automation equipment

Info

Publication number: CN212411858U
Application number: CN202021290827.8U
Authority: CN
Inventors: 陈州
Original assignee: Suzhou Yonghong Tiancheng Automation Equipment Co ltd
Current assignee: Suzhou Yonghong Tiancheng Automation Equipment Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-01-26
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a limit switch for automation equipment convenient to adjust, belonging to the technical field of limit switches; comprises a switch base; the left end and the right end of the front side of the switch seat are symmetrically provided with a thin rotating disk and a thick rotating disk, and the rear ends of the inner sides of the thin rotating disk and the thick rotating disk are fixedly sleeved with spiral coils; the switch seat upper end is pegged graft there is a section of thick bamboo, the embedding is provided with the spring circle that resets in the section of thick bamboo, it has spacing axle to peg graft the spring circle bottom that resets, spacing axle runs through the switch seat, spacing axle rotates with the switch seat to be connected, spacing axle bottom cup joints and is fixed with the dog, spacing axle middle part back protrusion has the contact, spacing axle openly left and right sides symmetry is provided with a pair of semi-arc circle, semi-arc circle side edge is provided with signal contact, signal contact and contact horizontal alignment, this kind of limit switch is through thick, the setting up of thin rotary disk makes things convenient for staff to adjust signal contact and contact interval, and then carry out stroke position control to limit switch, this limit switch's suitability has been.

Description

Limit switch convenient to adjust for automation equipment

Technical Field

The utility model relates to a limit switch technical field, especially be convenient for adjust limit switch for automation equipment.

Background

The limit switch is used for controlling the stroke and the limit protection of mechanical equipment, in the actual production, the limit switch is arranged at a prearranged position, when a module arranged on a moving part of the production machinery impacts the limit switch, the contact of the limit switch acts to realize the switching of the circuit, therefore, the limit switch is an electric appliance for switching the circuit according to the stroke position of the moving part, the action principle of the limit switch is similar to that of a button, and the limit switch is widely used for various machine tools and hoisting machinery;

the traditional limit switch usually sets a limit stroke according to the distance between the installation position and a mechanical motion part, namely, when the limit switch is installed, the stroke can be adjusted only by changing the installation position of the switch in the application process, the limit switch is inconvenient to adjust due to the disassembly and assembly work, the stroke distance is adjusted by depending on the visual inspection mode, and the precision is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a limit switch for automation equipment which is convenient to adjust and comprises a switch seat;

the left end and the right end of the front side of the switch seat are symmetrically provided with a thin rotating disk and a thick rotating disk, and the rear ends of the inner sides of the thin rotating disk and the thick rotating disk are fixedly sleeved with spiral coils;

the switch comprises a switch seat, a switch base, a switch seat, a switch wire input end, a switch wire output end, a switch wire connecting end and a switch wire output end, wherein a shaft barrel is inserted into the upper end of the switch seat, a reset spring ring is embedded into the shaft barrel, a limit shaft is inserted into the bottom end of the reset spring ring, penetrates through the switch seat, the limit shaft is rotatably connected with the switch seat, a stop block is fixedly sleeved at the bottom end of the limit shaft, a contact is protruded from the back surface of the middle part of the limit shaft, a pair of half arc rings are symmetrically arranged on the left side and the right side of the front surface of the limit shaft, a signal contact is arranged on the side;

the switch is characterized in that a terminal seat is inserted into the lower end of the front face of the switch seat, a connecting terminal is embedded into the bottom end of the terminal seat, and the input end of the connecting terminal is electrically connected with the output end of a switch wire.

Furthermore, the distance between the thread grooves on the surface of the spiral ring at the left end is smaller than that at the right end.

Furthermore, when the limiting shaft rotates clockwise, the reset spring coil is compressed, and when the limiting shaft rotates anticlockwise, the reset spring coil is stretched.

Furthermore, the side edge of the adjusting rod is connected with the inner wall of the switch seat in a sliding mode.

Furthermore, a connecting plate is fixedly connected between the adjusting rods.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

limiting switch for automation equipment convenient to adjust in this scheme, when the spacing axle bottom dog of mechanical motion part striking, can be according to the direction of force of dog and mechanical motion part's direction of rotation of spacing axle of change, and overcome reset spring coil elastic force in the process, when spacing rotation of axes and drive contact and marginal signal contact, marginal signal contact will pass through the switch wire, connecting terminal output signal of telecommunication, the spacing process of suggestion, in this limiting switch, can pass through the thick rotary disk that switch seat surface set up, thin rotary disk, through coarse adjusting, fine setting is rotatory, change contact and signal contact interval, make things convenient for the staff to set up corresponding distance's limiting switch according to the lathe motion needs, this limiting switch's practicality has been improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic view of the overlooking structure of the limiting shaft and the half-arc ring of the present invention.

In the attached drawing, 1-a switch base, 2-a terminal base, 3-a shaft barrel, 4-a thick rotating disk, 5-a thin rotating disk, 6-a reset spring coil, 7-a limiting shaft, 8-a stop block, 9-an adjusting rod, 10-a half arc coil, 11-a contact, 12-a signal contact, 13-a switch lead, 14-a spiral coil, 15-a connecting terminal and 16-a connecting plate.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

With reference to fig. 1 to 3, the utility model discloses a limit switch for automation equipment, which is convenient to adjust and comprises a switch base 1;

the left end and the right end of the front surface of the switch base 1 are symmetrically provided with a thin rotating disk 5 and a thick rotating disk 4, the rear ends of the inner sides of the thin rotating disk 5 and the thick rotating disk 4 are fixedly sleeved with a helicoid 14, and the surface thread groove distance of the helicoid 14 at the left end is smaller than that of the helicoid 14 at the right end;

when a worker rotates the coarse rotating disk 4 or the fine rotating disk 5, compared with the coarse rotating disk 4, due to the difference of the thread groove distances of the spiral coils 14 corresponding to the inner parts of the coarse rotating disk 4 and the fine rotating disk 5, after the fine rotating disk 5 rotates for one circle, the screwing-in distance and the screwing-out distance between the spiral coils 14 and the adjusting rod 9 are smaller than the distance of rotating the coarse rotating disk 4, so that the worker can alternately use the coarse rotating disk 4 and the fine rotating disk 5 to change the position of the adjusting rod 9 according to the adjustment requirement;

the upper end of a switch base 1 is inserted with a shaft barrel 3, a reset spring ring 6 is embedded in the shaft barrel 3, a limit shaft 7 is inserted at the bottom end of the reset spring ring 6, the limit shaft 7 penetrates through the switch base 1, the limit shaft 7 is rotatably connected with the switch base 1, a stop block 8 is fixedly sleeved at the bottom end of the limit shaft 7, a contact 11 protrudes from the back surface of the middle part of the limit shaft 7, a pair of half-arc rings 10 are symmetrically arranged at the left side and the right side of the front surface of the limit shaft 7, a signal contact 12 is arranged at the side edge of the half-arc ring 10, the signal contact 12 is transversely aligned with the contact 11, an adjusting rod 9 is fixed at the front end of each half-arc ring 10, the two adjusting rods 9 are respectively in threaded connection with a fine rotating disk 5 and a rear end spiral ring 14 of a coarse rotating disk 4, a switch lead 13 is fixed on the surface of the adjusting, the limit shaft 7 rotates anticlockwise to stretch the reset spring coil 6, the side edge of the adjusting rod 9 is connected with the inner wall of the switch base 1 in a sliding mode, and a connecting plate 16 is fixedly connected between the adjusting rods 9;

on the basis of the adjusting action, the coarse rotating disk 4 or the fine rotating disk 5 is rotated clockwise or anticlockwise to drive the adjusting rod 9 to perform transverse spiral translation along the inner wall of the switch base 1 through a threaded connection structure between the spiral ring 14 and the adjusting rod 9, and the semi-arc ring 10 arranged at the other end of the adjusting rod 9 is driven in the process, wherein the adjusting rods 9 at the left end and the right end perform synchronous displacement through a connecting plate 16 connected with the adjusting rod 9, and the distance between the semi-arc ring 10 and the limiting shaft 7 is changed along with the position change of the adjusting rod 9;

by installing and fixing the switch base 1 at a position needing to be limited in the stroke of a mechanical moving part, when the mechanical moving part moves to the limit position, the mechanical moving part impacts a stop block 8 at the bottom end of the switch base 1, the stop block 8 drives a limit shaft 7 to rotate along the switch base 1 according to the difference of the stress directions of the stop block 8, and overcomes the elastic acting force of a reset spring coil 6 in the rotating process, when a contact 11 on the surface of the limit shaft 7 is contacted with a signal contact 12 on the surface of a semi-arc ring 10, the signal contact 12 sends an electric signal through a switch lead 13, and when the mechanical moving part is not contacted with the stop block 8 any more, the reset spring coil 6 resets the limit shaft 7 through the elastic acting force;

terminal block 2 has been pegged graft to the positive lower extreme of

switch block

1, 2 bottom inlays of terminal block and has connect connecting terminal 15, connecting terminal 15 input and 13 output electric connection of switch wire, control terminal in terminal block 2 passes through external wire connection mechanical motion part board, the signal transmission between signal contact 12 and connecting terminal 15 in this limit switch is based on current limit switch signal principle, the electrical signal of being exported by signal contact 12 will pass through switch wire 13, connecting terminal 15 inputs board control terminal, feedback mechanical motion part and this limit switch's contact state to control terminal.

Claims

1. Limit switch for automation equipment convenient to adjust, including switch seat (1), its characterized in that:

the left end and the right end of the front surface of the switch base (1) are symmetrically provided with a thin rotating disk (5) and a thick rotating disk (4), and the rear ends of the inner sides of the thin rotating disk (5) and the thick rotating disk (4) are fixedly sleeved with spiral rings (14);

the upper end of the switch base (1) is spliced with a shaft barrel (3), a reset spring ring (6) is embedded in the shaft barrel (3), a limiting shaft (7) is spliced at the bottom end of the reset spring ring (6), the limiting shaft (7) penetrates through the switch base (1), the limiting shaft (7) is rotatably connected with the switch base (1), a stop block (8) is fixedly sleeved at the bottom end of the limiting shaft (7), a contact (11) is protruded at the back of the middle part of the limiting shaft (7), a pair of half-arc rings (10) are symmetrically arranged at the left side and the right side of the front surface of the limiting shaft (7), a signal contact (12) is arranged at the side edge of each half-arc ring (10), the signal contact (12) is transversely aligned with the contact (11), an adjusting rod (9) is fixed at the front end of each half-arc ring (10), and the two adjusting rods (9) are respectively in threaded connection with the fine rotating disk (5) and the rear end of the coarse rotating disk (, a switch conducting wire (13) is fixed on the surface of the adjusting rod (9), and the input end of the switch conducting wire (13) is electrically connected with the output end of the signal contact (12);

the switch is characterized in that a terminal seat (2) is inserted into the lower end of the front face of the switch seat (1), a connecting terminal (15) is embedded into the bottom end of the terminal seat (2), and the input end of the connecting terminal (15) is electrically connected with the output end of the switch lead (13).

2. The limit switch for automation equipment convenient to adjust of claim 1, wherein: the distance between the thread grooves on the surface of the helicoid (14) at the left end is smaller than that between the thread grooves on the surface of the helicoid (14) at the right end.

3. The limit switch for automation equipment convenient to adjust of claim 1, wherein: when the limiting shaft (7) rotates clockwise, the reset spring coil (6) is compressed, and when the limiting shaft (7) rotates anticlockwise, the reset spring coil (6) is stretched.

4. The limit switch for automation equipment convenient to adjust of claim 1, wherein: the side edge of the adjusting rod (9) is connected with the inner wall of the switch base (1) in a sliding way.

5. The limit switch for automation equipment convenient to adjust of claim 1, wherein: and a connecting plate (16) is fixedly connected between the adjusting rods (9).