CN213136055U

CN213136055U - Electronic edge finder

Info

Publication number: CN213136055U
Application number: CN202021383908.2U
Authority: CN
Inventors: 贺苏强
Original assignee: Hangzhou Hanlang Electromechanical Technology Co ltd
Current assignee: Hangzhou Hanlang Electromechanical Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-05-07
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to a detection instrument field indicates an electron seek limit ware especially, contains: measuring head, extension spring, sound production luminescent device, battery, pressure spring, end cover and have the electron of cavity inner chamber seek limit ware body, sound production luminescent device includes: the LED and the buzzer are integrated on the circuit board; the electronic edge finder body is formed by assembling a first main body, an insulating connecting piece and a second main body, a plurality of light transmission parts are arranged on the first main body and adjacent to the circuit board, sound transmission holes are formed in the light transmission parts, and the area of the sound transmission holes is far smaller than that of the light transmission parts. The utility model has high concentricity between the insulating connecting piece and the electronic edge finder body, and is not easy to deviate by dislocation; the sounding and light-emitting device has long service life and low power consumption; the alarm signal is easy to observe and hear; can effectively prevent simultaneously that a large amount of cooling water and oil from getting into the utility model discloses an inner chamber.

Description

Electronic edge finder

Technical Field

The utility model relates to a detection instrument field indicates an electron seek limit ware especially.

Background

The edge finder is a detection tool for accurately determining the central position of a workpiece to be processed in the numerical control processing. With the continuous development of the photoelectric technology, the photoelectric edge finder is used in large quantities because of more accurate measurement. The photoelectric induction type edge finder has the working principle that when the ball head contacts the surface of a workpiece, current forms a loop by utilizing the conductivity of the workpiece, and an acoustic and optical alarm signal is sent out. The ball head is connected with the body through a spring, and the coordinate position of the measured surface can be obtained through the indication of the photoelectric edge finder and the coordinate position of the machine tool.

The existing photoelectric edge finder adopts a design of separating the top end, a plastic sleeve and a steel sleeve with an insulating function are arranged at the top end, the two small fittings are assembled together and then pressed at the small diameter of a main body by pressure, and the method has the defect that the three fittings are completely extruded together by the size difference of the inner diameter and the outer diameter, so that the method is difficult to ensure for the photoelectric edge finder with extremely high concentricity requirement, and a pressure head is easy to have dislocation and deviation under the conditions of severe use environment and large temperature change of a numerical control machine tool, so that the precision cannot meet the requirement.

In addition, the electronic part of the existing photoelectric edge finder works in a mode that an LED and a buzzer are welded in parallel, a plurality of problems occur in the practical use process of the method, a lamp does not light or the buzzer does not sound, the main reason is that a large amount of cooling water and various kinds of oil cause poor oxidation contact of a welding part in the use process of a numerical control machine tool, and the process arrangement is not an optimal process.

Through search, the patent number is CN201120291472.9, an electronic edge finder is disclosed; however, because the position of the main body provided with the light-emitting sounder is also provided with a plurality of empty grooves, a large amount of cooling water enters the inner cavity of the edge finder, the damage of internal electronic devices is accelerated, and the defect of easy damage exists.

Disclosure of Invention

In order to solve the problems, the utility model provides an electronic edge finder, which aims to ensure the concentricity of a main body, and has long service life of a luminous and sounding device, low power consumption and difficult damage;

another object of the present invention is to provide an electronic edge finder, wherein the electronic edge finder is capable of easily observing optical signals and clearly hearing sound signals, and simultaneously preventing a large amount of cooling water and oil from entering the inner cavity of the present invention.

In order to achieve the above object, the utility model adopts the following technical scheme: an electronic edge finder, comprising: measuring head, extension spring, sound production luminescent device, battery, pressure spring, end cover and have the electron of cavity inner chamber seek the limit ware body, extension spring, sound production luminescent device, battery, pressure spring are installed in proper order from the electron seeks limit ware body front end to the electron and seek limit ware body rear end in the cavity inner chamber, the measuring head sets up and is equipped with the connecting piece on the measuring head at the electron seeks the front end of limit ware body, the connecting piece passes through the extension spring with sound production luminescent device is connected, end cover detachable installs and seeks limit ware body rear end and seal the cavity inner chamber in the electron, its characterized in that,

the sound emitting and light emitting device includes: the LED and the buzzer are integrated on the circuit board, the circuit board is electrically connected with the battery, and the circuit board is electrically connected with the measuring head through the tension spring and the connecting piece;

the electronic edge finder body is formed by assembling a first main body, an insulating connecting piece and a second main body, a plurality of light transmission parts are arranged on the first main body and adjacent to the circuit board, sound transmission holes are formed in the light transmission parts, and the area of the sound transmission holes is far smaller than that of the light transmission parts.

Further, the measuring head is spherical.

Furthermore, one end of the circuit board is provided with a contact hole, the other end of the circuit board is provided with a contact end, the contact hole is connected with one end of the tension spring, and the contact end is abutted to the end part of the battery.

Furthermore, the insulating connecting piece is a plastic piece with external threads, the first main body and the second main body are both provided with internal threads, and the plastic piece is in threaded connection with the first main body and the second main body.

Furthermore, glue is arranged at the joint of the plastic part and the first main body and the joint of the plastic part and the second main body.

Further, the glue is thread glue.

The beneficial effects of the utility model reside in that:

1. the utility model discloses an electron seek limit ware body is assembled by first main part, insulating connecting piece and second main part, compares with the tradition and establishes the insulating piece cover on the top of seeking limit ware this kind of structure, the concentricity of insulating connecting piece and electron seek limit ware body is high, is difficult to misplace and deviate;

2. the sounding and luminous device of the utility model adopts the LED and the buzzer to be integrated on the circuit board, thus having long service life and low power consumption;

3. in the utility model, a plurality of light transmission parts are arranged on the first main body and adjacent to the circuit board, and the light transmission parts are provided with sound transmission holes; the alarm signal is easy to observe, and the sound production is clearer when the novel use is used;

4. the area in sound transmission hole is far less than the area of printing opacity portion, prevents effectively that a large amount of cooling water and oil from getting into the utility model discloses an inner chamber.

Drawings

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

Fig. 2 is a schematic structural view of the electronic edge finder body of the present invention.

Fig. 3 is a schematic structural view of the plastic member of the present invention.

The reference numbers illustrate: 1. a measuring head; 2. a connecting member; 3. a tension spring; 4. a contact hole; 5, an LED; 6. a circuit board; 7. a buzzer; 8. a contact end; 9. a battery; 10. a pressure spring; 11. an end cap; 12. a first body; 13. an acoustically transparent aperture; 14. a plastic part; 15. a second body; 16. a light-transmitting portion; 17. and (4) external threads.

Detailed Description

Referring to fig. 1-3, the present invention relates to an electronic edge finder, comprising: the measuring head 1, the tension spring 3, the sounding luminescent device, the battery 9, the pressure spring 10, the end cover 11 and the electronic edge finder body with the hollow inner cavity are sequentially installed in the hollow inner cavity from the front end of the electronic edge finder body to the rear end of the electronic edge finder body, the measuring head 1 is arranged at the front end of the electronic edge finder body, the measuring head 1 is provided with a connecting piece 2, the connecting piece 2 is connected with the sounding luminescent device through the tension spring 3, and the end cover 11 is detachably installed at the rear end of the electronic edge finder body and seals the hollow inner cavity;

the sound emitting and light emitting device includes: the LED light source comprises a circuit board 6, an LED5 and a buzzer 7, wherein the LED5 and the buzzer 7 are integrated on the circuit board 6, the circuit board 6 is electrically connected with the battery 9, and the circuit board 6 is electrically connected with the measuring head 1 through the tension spring 3 and the connecting piece 2; the purpose of the limitation is that the integration process results in long lifetime and low power consumption of the sound and light emitting device;

the electronic edge finder body is formed by assembling a first main body 12, an insulating connecting piece 2 and a second main body 15, three light-transmitting parts 16 are arranged on the first main body 12 adjacent to the circuit board 6, and the three light-transmitting parts 16 are uniformly distributed along the circumferential direction of the first main body 12; the operator can see the alarm signal from all directions conveniently;

it should be noted that the light transmission portion 16 includes a through hole, the through hole is disposed on the first main body 12, the hollow inner cavity is inserted into a transparent tube, an axial direction of the transparent tube is the same as an axial direction of the hollow inner cavity, and an outer tube wall of the transparent tube abuts against the through hole to seal the hollow inner cavity; the circuit board 6 is mounted in the transparent tube, and the purpose of the circuit board 6 is to enable light emitted by the LED5 to pass through the light-transmitting part 16;

1-2 sound-transmitting holes 13 are formed in the light-transmitting part 16, and the area of each sound-transmitting hole 13 is far smaller than that of the light-transmitting part 16; the purpose of the definition here is to facilitate the propagation of the buzzer 7 beep, while preventing a large amount of cooling water and oil from entering the inner cavity;

in the above scheme, the insulating connector 2 forms an open circuit among the first main body 12, the sound-emitting and light-emitting device and the second main body 15, so that the electronic edge finder can work normally;

compared with the traditional structure that the insulating part is sleeved at the top end of the edge finder, the insulating connecting part 2 has high concentricity with the electronic edge finder body and is not easy to misplace and deviate.

The measuring head 1 is spherical, and contacts of the measuring head are uniformly distributed, so that the measuring head is convenient to use; the measuring head 1 used in the present embodiment is embodied as a steel ball having a diameter of 10 mm.

One end of the circuit board 6 is provided with a contact hole 4, the other end of the circuit board 6 is provided with a contact end 8, the contact hole 4 is connected with one end of the tension spring 3, and the contact end 8 is abutted to the end part of the battery 9;

in the scheme, the space of the circuit board 6 is fully utilized, so that the occupied space is small, and the production cost is reduced.

The insulating connecting piece 2 is a plastic piece 14 with external threads 17, the first main body 12 and the second main body 15 are both provided with internal threads, and the plastic piece 14 is in threaded connection with the first main body 12 and the second main body 15; the disassembly is convenient, and the sounding and light-emitting device is convenient to replace.

The joint of the plastic part 14 and the first main body 12 and the second main body 15 is provided with glue, and the function of the glue is to ensure that the connection of the plastic part 14 and the first main body 12 and the second main body 15 is not loosened and deviated.

The glue is thread glue, the thread glue is anaerobic glue for short, is a single-component sealing adhesive prepared by utilizing the principle of oxygen to free radical polymerization inhibition, can be used for bonding and sealing, has the advantages of quick bonding, detachability after curing, good sealing property and the like, and simultaneously, the glue overflowing outside a glue joint is not cured and is easy to remove.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims

1. An electronic edge finder, comprising: measuring head, extension spring, sound production luminescent device, battery, pressure spring, end cover and have the electron of cavity inner chamber seek the limit ware body, extension spring, sound production luminescent device, battery, pressure spring are installed in proper order from the electron seeks limit ware body front end to the electron and seek limit ware body rear end in the cavity inner chamber, the measuring head sets up and is equipped with the connecting piece on the measuring head at the electron seeks the front end of limit ware body, the connecting piece passes through the extension spring with sound production luminescent device is connected, end cover detachable installs and seeks limit ware body rear end and seal the cavity inner chamber in the electron, its characterized in that,

2. The electronic edge finder of claim 1, wherein the measuring head is spherical.

3. The electronic edge finder according to claim 2, wherein one end of the circuit board is provided with a contact hole, the other end of the circuit board is provided with a contact end, the contact hole is connected with one end of a tension spring, and the contact end abuts against the end of the battery.

4. The electronic edge finder of claim 3 wherein said insulating connector is a plastic member with external threads, said first and second bodies each having internal threads, said plastic member being threadably coupled to said first and second bodies.

5. The electronic edge finder of claim 4, wherein a joint between the plastic member and the first and second bodies is provided with glue.

6. The electronic edge finder of claim 5, wherein the glue is a threaded glue.