CN218455441U

CN218455441U - Electromagnetic integrated distance measuring mechanism

Info

Publication number: CN218455441U
Application number: CN202222798474.8U
Authority: CN
Inventors: 金建强; 金燕; 金一诺
Original assignee: Jiashan Dahang Machanical & Electrical Technology Co ltd
Current assignee: Jiashan Dahang Machanical & Electrical Technology Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-02-07
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to an integrated range finding mechanism of electromagnetism. It has solved the technical problem that current range unit precision is low. This integrated range finding mechanism of electromagnetism includes: the shell is internally provided with a mounting cavity; the distance measuring rod penetrates through the mounting cavity along the length direction of the shell, and one end of the distance measuring rod is provided with a distance measuring probe extending out of the end part of the shell; the electromagnetic driving device comprises a driving magnetic block arranged on the distance measuring rod, an electromagnetic coil arranged in the mounting cavity and sleeved outside the magnetic block, and a power supply connected with the electromagnetic coil; the distance measuring data module comprises a core block arranged on the distance measuring rod and an induction coil arranged in the installation cavity and sleeved on the outer side of the core block. This integrated range finding mechanism of electromagnetism overall structure is compact occupation space is little, reduces the installation error between the structure simultaneously, has reduced the installation accuracy demand, promotes the range finding precision moreover by a wide margin.

Description

Electromagnetic integrated distance measuring mechanism

Technical Field

The utility model belongs to the ranging apparatus field relates to an integrated range finding mechanism of electromagnetism.

Background

Most of the existing contact type distance measuring equipment is characterized in that a probe is arranged on a translation mechanism, the probe is driven by the translation mechanism to contact with a measured object, and the distance between the probe and the measured object is represented by movement data of the translation mechanism.

For example, chinese patent literature discloses a contact milling machine distance measuring device [ 20150680.5] comprising a contact measuring mechanism, wherein the contact measuring mechanism comprises a cylinder body, the cylinder body is provided with a telescopic piston rod, the piston rod is provided with a front extending end extending from the front end of the cylinder body, the end part of the front extending end is fixed with a contact block, the piston rod is provided with a rear extending end extending from the rear end of the cylinder body, the rear extending end is sleeved with a contact ring, and the contact measuring device further comprises a contact switch fixedly arranged and matched with the contact ring; the controller receives the distance data and drives the starting and stopping of each component; this milling machine work piece range unit measurement accuracy is high, and measuring time is short, guarantees measurement accuracy, and location processing starting point that can be quick or feed the target position have avoided the work piece range error that leads to because of external factors, but this kind of range finding mode is through external drive probe, and whole occupation space is too big, and installation and debugging are inconvenient, excessively relies on translation mechanism's removal precision and the installation reliability of probe moreover, and measurement accuracy still has great promotion space.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide an integrated range finding mechanism of electromagnetism.

The purpose of the utility model can be realized by the following technical proposal:

the integrated range finding mechanism of electromagnetism includes:

the shell is internally provided with a mounting cavity;

the distance measuring rod penetrates through the mounting cavity along the length direction of the shell, and one end of the distance measuring rod is provided with a distance measuring probe extending out of the end part of the shell;

the electromagnetic driving device comprises a driving magnetic block arranged on the distance measuring rod, an electromagnetic coil arranged in the mounting cavity and sleeved outside the magnetic block, and a power supply connected with the electromagnetic coil;

the distance measuring data module comprises a core block arranged on the distance measuring rod, an induction coil arranged in the installation cavity and sleeved outside the core block, and a sensor connected with the induction coil.

Furthermore, an electromagnetic shielding cover is arranged between the electromagnetic driving device and the ranging data module.

Further, a shaft sleeve which is arranged along the length direction of the shell and sleeved outside the distance measuring rod is arranged in the mounting cavity.

Further, the power supply is a direct current power supply and is arranged in the installation cavity.

Furthermore, the power supply is an alternating current power supply, and one end of the power supply is connected with the electromagnetic coil and penetrates out of the end part of the shell

Further, the outer diameter of the distance measuring probe is larger than that of the distance measuring rod.

Furthermore, a spring acting on the ranging rod is arranged on the shell, so that the ranging probe is forced to have a tendency of moving close to one end of the shell.

Furthermore, a spring acting on the ranging rod is arranged on the shell, so that the ranging probe is forced to have a trend of moving away from one end of the shell.

Further, the electromagnetic driving device is arranged at one end, far away from the distance measuring probe, of the distance measuring rod.

Compared with the prior art, this integrated range finding mechanism of electromagnetism replaces original external drive through built-in electromagnetic drive device, and overall structure is compact occupation space is little, receives the intensity of signal of telecommunication and receives the length of telecommunication simultaneously through the sensor for calculate the distance on range probe and measured object surface, reduce the installation error between the structure, reduced the installation accuracy demand, promote the range finding precision moreover by a wide margin.

Drawings

Fig. 1 is a schematic view of an embodiment of the electromagnetic integrated distance measuring mechanism provided by the present invention.

Fig. 2 is a schematic diagram of a second embodiment of the electromagnetic integrated ranging mechanism of fig. 1.

Fig. 3 is a third schematic view of the embodiment of the electromagnetic integrated distance measuring mechanism of fig. 1.

In the figure, 10, the housing; 11. a mounting cavity; 12. a shaft sleeve; 13. a spring; 20. a distance measuring rod; 21. a distance measuring probe; 30. an electromagnetic drive device; 31. a driving magnetic block; 32. an electromagnetic coil; 33. a power source; 40. a ranging data module; 41. a core block; 42. an induction coil; 43. a sensor; 50. an electromagnetic shield; 60. and (5) measuring the object.

Detailed Description

Example one

Please refer to fig. 1, which is a schematic structural diagram of an electromagnetic integrated distance measuring mechanism according to the present invention. This integrated range finding mechanism of electromagnetism includes: a housing 10; a distance measuring rod 20 inserted into the housing 10; an electromagnetic drive device 30 provided in the housing 10; and a ranging data module 40 disposed in the case 10. It is contemplated that the electromagnetic integrated range finding mechanism may further include other functional components and specific structures, such as electrical connection components, computing modules, control components, mounting structures, etc., which are well known to those skilled in the art, and therefore, will not be described in detail herein.

Casing 10 accessible outside clamping structure or handheld realization are fixed, and casing 10 is inside to have installation cavity 11, and installation cavity 11 sets up along casing 10 length direction, as the installation carrier of other parts, avoids appearing the internally mounted problem of interfering.

Range finding pole 20 is followed casing 10 length direction wears to establish in installation cavity 11, is provided with in the installation cavity 11 along casing 10 length direction setting and overlaps the axle sleeve 12 of establishing in the range finding pole 20 outside, keeps the accuracy nature of range finding pole 20's axial displacement direction through axle sleeve 12 to and improve the smooth degree of displacement. Sleeve 12 may be replaced with a plain bearing. The one end of range finding pole 20 is equipped with the range finding probe 21 that stretches out the casing 10 tip, range finding probe 21 is used for with the surperficial direct contact of measured object 60, in this embodiment, range finding probe 21 adopts elasticity rubber or elasticity sponge material to make with the contact surface of measured object 60, or add the cushion structure again on range finding probe 21, can range finding probe 21 play the buffering laminating effect when contacting measured object 60, avoid the contact collision to lead to range finding pole 20 to kick-back, reduce range finding error and promote measurement accuracy.

The electromagnetic driving device 30 is used as a power source of the driving rod and can drive the distance measuring rod 20 to move axially along the shaft sleeve 12, specifically, the electromagnetic driving device 30 includes a driving magnetic block 31 arranged on the distance measuring rod 20, and in this embodiment, the driving magnetic block 31 is a bar magnet; the electromagnetic coil 32 is arranged in the mounting cavity 11 and sleeved on the outer side of the magnetic block, the electromagnetic coil 32 is connected with the power supply 33, and after the power supply 33 is switched on, a magnetic field can be generated in the electromagnetic coil 32 according to the distance of electromagnetic induction, and attraction or repulsion reaction is generated between the magnetic field and the driving magnetic block 31, so that the purpose of driving the distance measuring rod 20 is achieved.

It is conceivable that, when the power supply 33 is a dc power supply, the distance measuring bar 20 is driven only in one direction; when the power source 33 is an ac power source, the distance measuring rod 20 can be driven in two directions. In this embodiment, the power supply 33 is a dc power supply and is disposed in the installation cavity 11, so that the occupied space is reduced, and the installation is more convenient and faster. By providing the spring 13 on the housing 10 acting on the distance measuring rod 20, the spring 13 may be mounted outside the housing 10 or in a mounting cavity, forcing the distance measuring probe 21 to have a tendency to move closer to one end of the housing 10, bringing the distance measuring probe 21 to an initial position in a retracted state. During ranging, the power supply 33 is connected with a control component to control input current, and drives the ranging rod 20 to continuously stretch the spring 13 and extend outwards until the ranging probe 21 contacts the surface of the measured object 60; after the ranging configuration, the power supply 33 is turned off and the ranging probe 21 returns to the initial position by the elastic potential energy of the spring 13.

The distance measuring data module 40 comprises a core block 41 arranged on the distance measuring rod 20, in the embodiment, the core block 41 is a magnet structure, and a magnetic field is distributed in the circumferential direction; the induction coil 42 is arranged in the mounting cavity 11 and sleeved outside the core block 41, and is connected with the sensor 43 to form a closed ring. It is conceivable that when the core block 41 starts to move with the ranging rod 20, part of the wire of the induction coil 42 is cutting the magnetic induction wire outside the core block 41, the induction coil 42 forms a current and the sensor 43 receives an electric signal; until one end of the ranging probe 21 abuts against the surface of the measured object 60, the movement of the ranging rod 20 stops, the current in the induction coil 42 disappears, the sensor 43 loses the electric signal, the intensity of the electric signal received by the sensor 43 and the time length of the electric signal received by the sensor 43 are obtained through an externally connected calculation module, and the movement distance of the ranging rod 20, namely the distance between the ranging probe 21 and the surface of the measured object 60, is represented. This integrated range finding mechanism of electromagnetism replaces original external drive through built-in electromagnetism is integrated, and overall structure is compact occupation space is little, receives the intensity of signal of telecommunication and receives the length of time of signal of telecommunication through sensor 43 simultaneously for calculate the distance on range probe 21 and measured object 60 surface, prevent installation error between the structure, reduced the installation accuracy demand, promote the range finding precision moreover by a wide margin.

An electromagnetic shielding cover 50 is disposed between the electromagnetic driving device 30 and the ranging data module 40, in this embodiment, the electromagnetic shielding cover 50 is a separation block disposed on the ranging rod 20, and is disposed at an interval with the electromagnetic driving device 30 and the ranging data module 40 to prevent interference of electrical signals and magnetic signals between the electromagnetic driving device 30 and the ranging data module 40. More optimally, two shielding chambers for respectively installing the electromagnetic driving device 30 and the ranging data module 40 may be disposed in the housing 10 to achieve the same technical effect as the electromagnetic shielding case 50.

Example two

Referring to fig. 2, the structure and principle of the present embodiment are basically the same as those of the first embodiment, and the only difference is that: the spring 13 acting on the distance measuring rod 20 is arranged on the shell 10, so that the distance measuring probe 21 is forced to have a tendency of moving away from one end of the shell 10, in the embodiment, under the action of the spring 13, a distance exists between the initial state position and the shell 10 of the distance measuring probe 21, and the distance measuring probe belongs to a normally-ejected state and is mainly used for distance measurement in a hole groove. It can be considered that, the normally ejected distance measuring probe 21 is abutted against one end surface of the measured object 60, when the electromagnetic driving device 30 drives the distance measuring rod 20 to move towards the end of the housing 10 until the rear end of the distance measuring probe 21 contacts the other end surface of the measured object 60, and then the calculated data is obtained through the distance measuring data module 40, so as to achieve the same technical effect as the first embodiment. The outer diameter of the distance measuring probe 21 is larger than that of the distance measuring rod 20, so that the distance measuring rod 20 has a return avoiding effect with the measured object 60 when moving, and movement interference is avoided.

EXAMPLE III

Referring to fig. 3, the structure and principle of the present embodiment are basically the same as those of the first embodiment, and the only difference is that: power 33 is alternating current power supply and power 33's one end and solenoid 32 are connected and wear out casing 10 tip, and alternating current power supply can control range finding pole 20 both-way movement, and cooperation control assembly control alternating current power supply input drive range finding pole 20, and it is more convenient and accurate to find a distance and reset. The electromagnetic driving device 30 is arranged at one end of the distance measuring rod 20 far away from the distance measuring probe 21, so that the input connection of an alternating current power supply is facilitated, and the installation is more convenient and compact.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an integrated range finding mechanism of electromagnetism which characterized in that, integrated range finding mechanism of electromagnetism includes:

the shell is internally provided with a mounting cavity;

the distance measuring data module comprises a core block arranged on the distance measuring rod, an induction coil arranged in the installation cavity and sleeved on the outer side of the core block, and a sensor connected with the induction coil.

2. The electromagnetic integrated distance measuring mechanism of claim 1, wherein an electromagnetic shield is disposed between the electromagnetic driving device and the distance measuring data module.

3. The integrated electromagnetic ranging mechanism according to claim 1, wherein a shaft sleeve is arranged in the installation cavity along the length direction of the shell and sleeved outside the ranging rod.

4. An electromagnetic integrated range finding mechanism as claimed in claim 1 wherein the power supply is a dc power supply and is disposed in the mounting cavity.

5. The integrated electromagnetic ranging mechanism of claim 1, wherein the power source is an alternating current power source and one end of the power source is connected to the electromagnetic coil and protrudes out of the end of the housing.

6. The electromagnetic integrated range finding mechanism of claim 1 wherein the outer diameter of the range finding probe is larger than the outer diameter of the range finding wand.

7. An electromagnetic integrated range finding mechanism as claimed in claim 4 wherein the housing is provided with a spring acting on the range finding pole forcing the range finding probe to have a tendency to move closer to one end of the housing.

8. An electromagnetic integrated range finding mechanism as claimed in claim 4 wherein the housing is provided with a spring acting on the range finding pole to urge the range finding probe to have a tendency to move away from the end of the housing.

9. An electromagnetic integrated distance measuring mechanism according to claim 5 wherein said electromagnetic drive means is provided at the end of said distance measuring rod remote from the distance measuring probe.