CN204883380U - Little displacement movement controlling means - Google Patents

Abstract

A small-displacement mobile control device suitable for a mobile device, used to control the mobile device to move within the range of the moving distance at the mobile position, including: a mobile sensing component and a photoelectric sensing component; the mobile sensing component includes a sensing support, a first An induction sheet, a second induction sheet and a third induction sheet; one end of the induction support is installed on the mobile device and extends towards the photoelectric induction assembly; the first induction sheet, the second induction sheet and the third induction sheet are downward The other end of the induction support is fixed at vertical intervals; the third induction sheet is located between the first induction sheet and the second induction sheet; the photoelectric induction assembly includes a first photoelectric switch, a second photoelectric switch and a third photoelectric switch; the first The installation distance between the photoelectric switch and the second photoelectric switch is equal to the sum of the moving distance and the distance between the first induction sheet and the second induction sheet; as the mobile device moves, the induction sheet of the mobile induction assembly moves between the photoelectric induction assemblies, thereby Control the movement of mobile devices.

Description

A small displacement mobile control device

technical field

The utility model relates to a displacement detection technology, in particular to a small displacement movement control device using a sensor.

Background technique

At present, the control of the displacement of the mobile device is accomplished through an induction sheet and three photoelectric switches. Place two of the three photoelectric switches at the positive and negative limit positions of the mobile device, install the induction sheet on the mobile device, and the induction sheet moves with the movement of the mobile device. When the motor controls the movement of the mobile device, the sensing sheet also moves along with the movement of the mobile device. When the induction sheet moves to the photoelectric switch at the positive limit position or the negative limit position, the photoelectric switch converts the optical signal into an electrical signal, so that it is known that the mobile device has moved to the positive limit position or negative limit position. At this time, the control motor will move the mobile device to movement in the opposite direction.

The small displacement of the mobile device is controlled by an induction sheet and three photoelectric switches. Although this structure is simple and effective, the size of the structure is affected by the photoelectric switches. As the structure of mechanical equipment becomes more and more precise, the requirements for the control of the mechanical structure are also getting higher and higher. In many cases, the movement of the mobile device is very small. In this case, the size of the photoelectric switches is relatively large, and it is impossible to arrange the three photoelectric switches within the moving displacement. That is to say, this structure is only suitable for the control of a mobile device with a large displacement, and it cannot complete the control of a mobile device with a small displacement.

Another method for controlling the displacement of the mobile device is through sensors. Existing sensors are generally developing towards high reliability and high precision, and they can also achieve smaller volumes, but correspondingly, their structures will be more complicated, and the materials or components used will be more expensive, and the cost is very high , and, due to its small size, its industrial manufacturing difficulty is also greatly increased.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a small displacement movement control device, which is used to solve the problem that the displacement detection device cannot meet the requirements of high measurement accuracy and small size in the prior art.

In order to achieve the above purpose and other related purposes, the utility model provides a small displacement mobile control device, which is suitable for a mobile device, and is used to control the mobile device to move within the range of the moving distance at the moving position; wherein, the The mobile device is installed on the base; the small displacement mobile control device includes: a mobile sensing component and a photoelectric sensing component; the mobile sensing component includes a sensing support, a first sensing piece, a second sensing piece and a third sensing piece; the One end of the sensing support is installed on the mobile device and extends outward toward the photoelectric sensing component; the first sensing sheet, the second sensing sheet and the third sensing sheet are located on the mobile device and are vertically fixed at the other end of the inductive support at intervals downward; the third inductive sheet is located between the first inductive sheet and the second inductive sheet; the photoelectric sensor assembly Installed on the outside of the base, including a first photoelectric switch, a second photoelectric switch and a third photoelectric switch; the first photoelectric switch and the second photoelectric switch are respectively located on both sides of the third photoelectric switch, and The installation distance between the first photoelectric switch and the second photoelectric switch is equal to the sum of the moving distance and the distance between the first inductive sheet and the second inductive sheet; as the moving device moves, the The first sensing sheet, the second sensing sheet and the third sensing sheet move between the first photoelectric switch, the second photoelectric switch and the three photoelectric switches, thereby controlling the movement of the mobile device sports.

Optionally, the photoelectric sensor assembly further includes three photoelectric brackets, and the first photoelectric switch, the second photoelectric switch and the third photoelectric switch are respectively installed on the outside of the base through different photoelectric brackets .

Optionally, when the moving device drives the first sensing strip to move to the first photoelectric switch, the moving device moves to the positive limit position.

Optionally, when the moving device drives the second sensing piece to move to the second photoelectric switch, the moving device moves to the negative limit position.

Optionally, the mobile device calibrates the moving position of the mobile device through the third sensing sheet and the third photoelectric switch.

Optionally, the moving device is a screw device, including a screw and a motor.

Optionally, the induction support is installed on the screw of the screw device through a nut seat.

Optionally, the mobile device further includes a transmission device.

As mentioned above, the utility model discloses a small-displacement mobile control device suitable for mobile devices. By setting three induction plates, the limit range of the mobile device’s moving distance is reduced, thereby avoiding the photoelectric switch from being affected by it when it is set. volume effect. The small displacement mobile control device of the utility model has the advantages of simple structure, low cost, wide application range and high control flexibility.

Description of drawings

Fig. 1 is a schematic structural diagram of a small displacement movement control device disclosed by an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a motion sensing component of a small displacement motion control device disclosed in an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a small-displacement mobile control device disclosed in an embodiment of the present invention when the mobile device is in the positive limit position.

Fig. 4 is a schematic structural diagram of a small displacement movement control device disclosed in an embodiment of the present invention when the movement device is in the negative limit position.

Component designation description

110 motor

120 screw

130 coupling

200 base

311 first photoelectric switch

312 second photoelectric switch

313 third photoelectric switch

320 photoelectric bracket

330 induction support

341 first sensor

342 second sensor

343 third induction piece

400 nut seat

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the utility model Therefore, it has no technical substantive meaning. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of Within the scope covered by the technical content disclosed by the utility model. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable range of the utility model, and the change or adjustment of its relative relationship, without any substantial change in the technical content, shall also be regarded as the practicable scope of the utility model.

Example

This embodiment discloses a small-displacement movement control device suitable for the screw device, which is used to effectively control the movement of the screw within the limit range of the moving distance.

As shown in FIG. 1 , the screw device converts rotary motion into linear motion, and includes a motor 110 , a screw rod 120 and a coupling 130 . The motor 110 drives the screw rod 120 to rotate through the coupling 130 .

In this embodiment, the screw device is fixedly installed on the base 200 ; wherein, the screw 120 is fixedly installed on the base 200 through the bearing seat 210 . The base 200 does not move with the rotation of the screw rod 120 .

The small displacement movement control device of this embodiment includes a movement sensing component and a photoelectric sensing component. The movement sensing component is installed on the screw rod device, and it can move with the rotation of the screw rod 120 ; the photoelectric sensing component is fixedly installed on the base 200 ; it does not move with the rotation of the screw rod 120 .

Wherein, the movement sensing component includes a sensing support 330 , a first sensing piece 341 , a second sensing piece 342 and a third sensing piece 343 .

As shown in FIG. 2 , one end of the induction support 330 is fixedly mounted on the screw rod 120 and extends outward along a direction perpendicular to the screw rod 120 . The other end of the sensing support 330 is used to fix the first sensing piece 341 , the second sensing piece 342 and the third sensing piece 343 . Moreover, the widths of the two ends of the sensing support 330 are different, and the width of the end connected to the first sensing piece 341 , the second sensing piece 342 and the third sensing piece 343 is greater than the width of the end connected to the screw rod.

In this embodiment, one end of the induction support 330 is fixedly installed on the threaded rod 120 through the nut seat 400 .

The first sensing sheet 341, the second sensing sheet 342 and the third sensing sheet 343 are located on the outside of the mobile device, and the first sensing sheet 341, the second sensing sheet 342 and the third sensing sheet 343 are vertically spaced downwards and fixed on the sensing One end of the support 330. The first sensing strip 341 , the second sensing strip 342 and the third sensing strip 343 are fixed on a straight line, and the first sensing strip 341 and the second sensing strip 342 are located on two sides of the third sensing strip 343 .

The photoelectric sensing component includes a first photoelectric switch 311 , a second photoelectric switch 312 and a third photoelectric switch 313 .

The first photoelectric switch 311 , the second photoelectric switch 312 and the third photoelectric switch 313 are all mounted on the outside of the base 200 , and the first photoelectric switch 311 , the second photoelectric switch 312 and the third photoelectric switch 313 are located on the same horizontal line. The first photoelectric switch 311 is located at the positive limit position of the screw screw device; the second photoelectric switch 312 is located at the negative limit position of the screw screw device; the third photoelectric switch 313 is located at the calibration position of the screw screw device. Wherein, the calibration position is the zero position of the screw device, that is, the linear movement of the screw device is adjusted through the calibration position. The positive limit position and the negative limit position are respectively located on both sides of the calibration position, and the distance between the first photoelectric switch 311 and the second photoelectric switch 312 is the distance between the moving distance of the mobile device and the first sensing sheet 341 and the second sensing sheet 342. sum of distances. Preferably, the positive limit bit and the negative limit bit are symmetrical about the calibration bit.

Further, the photoelectric sensing component of the small displacement movement control device of this embodiment further includes three photoelectric brackets 320 . The first photoelectric switch 311 , the second photoelectric switch 312 and the third photoelectric switch 313 are respectively installed on the outside of the base 200 through different photoelectric brackets 320 .

The first sensing sheet 341 , the second sensing sheet 342 and the third sensing sheet 343 are matched with the first photoelectric switch 311 , the second photoelectric switch 312 and the third photoelectric switch 313 .

In order to control the linear motion of the screw device at the moving position within the range of moving distance:

First of all, accurately calibrate the screw screw device, that is, determine the position of the third photoelectric switch 313: the movement of the screw screw device is a horizontal movement at the moving position, so before the screw screw device is controlled, the moving position must be to calibrate. The rotation of the screw rod is controlled by the motor to drive the movement of the nut seat 400 . When the nut seat 400 moves to the moving position, the position corresponding to the third sensing piece 343 is the position of the third photoelectric switch 313 , as shown in FIG. 1 .

Then, determine the position of the first photoelectric switch 311 and the second photoelectric switch 312: according to the position of the 3rd photoelectric switch 313, determine the first sensing piece 341 and the spacing of the second sensing piece 342 in the movement distance and the moving sensing assembly according to the position of the 3rd photoelectric switch 313 The position of a photoelectric switch 311 and the second photoelectric switch 312, that is, the first photoelectric switch 311 and the second photoelectric switch 312 are located on both sides of the third photoelectric switch, and the distance is the moving distance and the first induction sheet 341 and the second induction sheet The sum of the spacing of 341.

Finally, the rotation of the screw rod is controlled by the motor, thereby driving the nut seat 400 to move within the range of the moving distance:

As shown in Figure 3, when the first sensing piece 341 moves to the first photoelectric switch 311, it means that the moving device drives the nut seat 400 to move to the positive limit of the moving distance, then the first photoelectric switch 311 will convert the optical signal into an electrical signal , the motor 110 changes the rotation direction of the screw mandrel 120 according to the electrical signal sent by the first photoelectric switch 311;

As shown in Figure 4, when the second sensing piece 342 moves to the second photoelectric switch 312, it means that the moving device drives the nut seat 400 to move to the negative limit of the moving distance, then the second photoelectric switch 312 will convert the optical signal into an electrical signal , the motor 110 changes the rotation direction of the screw mandrel 120 according to the electrical signal sent by the second photoelectric switch 312 .

In addition, in order to highlight the innovative part of the utility model, the components that are not closely related to solving the technical problems proposed by the utility model are not introduced in the embodiment, but this does not mean that there are no other components in the embodiment .

It should be noted that the illustrations provided in the embodiments only illustrate the basic idea of the utility model in a schematic manner, and only show the components related to the utility model rather than the number of components in actual implementation, Shape and size drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be more complicated.

To sum up, the utility model is a small displacement mobile control device suitable for mobile devices. By setting three induction plates, the limit range of the moving distance of the mobile device is reduced, thereby avoiding the photoelectric switch from being affected by other factors when it is set. volume effect. The small displacement mobile control device of the utility model has the advantages of simple structure, low cost, wide application range and high control flexibility. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present utility model, but are not intended to limit the present utility model. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (8)

1. a thin tail sheep mobile controller, is applicable to mobile device, for described mobile device being controlled the range of motion in displacement at shift position place; Wherein, described mobile device is arranged on base; It is characterized in that, described thin tail sheep mobile controller comprises: mobile inductive component and optoelectronic induction assembly;

Described mobile inductive component comprises induction bearing, the first sensing chip, the second sensing chip and the 3rd sensing chip; One end of described induction bearing is arranged on described mobile device, and stretches out towards described optoelectronic induction assembly; Described first sensing chip, described second sensing chip and described 3rd sensing chip are positioned at the outside of described mobile device, and are all the other ends that compartment of terrain is fixed on described induction bearing; Described 3rd sensing chip is between described first sensing chip and described second sensing chip;

Described optoelectronic induction assembly is arranged on the outside of described base, comprises the first optoelectronic switch, the second optoelectronic switch and the 3rd optoelectronic switch; Described first optoelectronic switch and described second optoelectronic switch lay respectively at the both sides of described 3rd optoelectronic switch, and the installing space of described first optoelectronic switch and described second optoelectronic switch equals the spacing sum of described displacement and described first sensing chip and described second sensing chip;

Along with the movement of described mobile device, described first sensing chip, described second sensing chip and described 3rd sensing chip at described first optoelectronic switch, move between described second optoelectronic switch and described three optoelectronic switches, thus control the motion of described mobile device.

2. thin tail sheep mobile controller according to claim 1, it is characterized in that: described optoelectronic induction assembly also comprises three photoelectric supports, described first optoelectronic switch, described second optoelectronic switch and described three optoelectronic switches are arranged on the outside of described base respectively by different described photoelectric supports.

3. thin tail sheep mobile controller according to claim 1, is characterized in that: when described mobile device drives described first sensing chip to move to described first optoelectronic switch, then to have moved to positive pole spacing for described mobile device.

4. thin tail sheep mobile controller according to claim 3, is characterized in that: when described mobile device drives described second sensing chip to move to described second optoelectronic switch, then to have moved to negative pole spacing for described mobile device.

5. thin tail sheep mobile controller according to claim 4, is characterized in that: described mobile device calibrates the described shift position of described mobile device by described 3rd sensing chip and described 3rd optoelectronic switch.

6. thin tail sheep mobile controller according to claim 1, is characterized in that: described mobile device is lead screw device, comprises screw mandrel and motor.

7. thin tail sheep mobile controller according to claim 6, is characterized in that: described induction bearing is arranged on the screw mandrel of described lead screw device by nut seat.

8. thin tail sheep mobile controller according to claim 1, is characterized in that: described mobile device also comprises gearing.