CN211121131U

CN211121131U - Sensor positioning structure of displacement switch

Info

Publication number: CN211121131U
Application number: CN201921899350.0U
Authority: CN
Inventors: 陈卫权
Original assignee: Jiangmen Electronics Co ltd
Current assignee: Jiangmen Electronics Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-28
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a sensor positioning structure of a displacement switch, which comprises a strip-shaped base, wherein a guide groove extending along the length direction of the base is arranged in the base, a mounting groove is arranged above the guide groove, the mounting groove is provided with a fastening side wall and a positioning side wall which are arranged oppositely and parallelly, a positioning bottom wall is perpendicular to the fastening side wall and the positioning side wall, and the positioning bottom wall is provided with a notch for a slider to pass through; the sensor is mounted in the mounting groove and has a side surface and a bottom surface which are perpendicular to each other, and the two spatial directions of the sensor are restrained by abutting the side surface of the sensor against the positioning side wall and abutting the bottom surface of the sensor against the positioning bottom wall. The utility model discloses only need control position lateral wall and two machined surfaces of location diapire, just can the relation between accurate positioning sensor and the guide way, it is few to have installation parts, advantages such as installation simple process and installation accuracy height.

Description

Sensor positioning structure of displacement switch

Technical Field

The utility model relates to a displacement sensor specifically discloses a displacement switch's sensor location structure.

Background

Refer to fig. 1. The existing displacement switch is provided with a cylindrical base 1, one end of the base 1 is an installation end, and a threaded sleeve 11 for installing the displacement switch on a host is arranged on the base; the other end is a limiting end with a limiting end face 12, and a limiting sheet C is fixed on the limiting end face 12 by a screw 3. A guide groove 13 is formed in the base 1, and a sliding block 2 capable of sliding in the guide groove 13 is arranged in the guide groove. The sliding block 2 is connected with a connecting rod 21 extending out of the threaded sleeve 11, an anti-backlash spring 22 is sleeved outside the connecting rod 21, one end of the anti-backlash spring 22 abuts against the threaded sleeve 11, and the other end of the anti-backlash spring abuts against a clamping ring 23 at the tail end of the connecting rod 21. And a mounting plane 1A is cut out of a part of a cylinder above the guide groove 13, and a mounting block B is fixed on the mounting plane 1A by a fastening screw 3. A mounting groove B1 is arranged in the mounting block B, and the sensor 4 is fixed in the mounting groove B1. The working principle of the displacement switch is as follows: when the measured object moves, the connecting rod 21 is pushed to move, the connecting rod 21 pushes the sliding block 2 to move in the guide groove 13, and the sensor 4 provides an alarm electric signal after detecting the sliding block 2 to prompt that the measured object has moved by a preset distance. The detection head of the sensor 4 is a precise element, and the position relation between the detection head and the sliding block 2 needs to be precisely controlled to ensure that the sliding block 2 can be accurately detected and cannot be impacted or pressed to be damaged by the sliding block 2. In the prior art, in order to ensure the installation accuracy of the sensor 4, the machining accuracy and the matching accuracy of the installation plane 1A, the fixed block B and the installation groove B1 thereof need to be controlled simultaneously, and more control points are needed; meanwhile, the fastening screw 3 is used for fixing the mounting block B, so that a large mounting error is easy to generate. Therefore, the existing fixing mode of the sensor 4 of the displacement switch has the defects of various installation parts, complex processing technology, complex installation technology, difficulty in ensuring the installation precision and the like.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a positioning structure of a displacement switch sensor, which is simple in processing and installation process and high in installation accuracy, for solving the problems in the prior art.

In order to solve the prior art problem, the utility model discloses a displacement switch sensor positioning structure, including the base of rectangular shape, be provided with the guide way that extends along base length direction in the base, set up the slider that can slide in it in the guide way, the slider is connected with the connecting rod that extends to outside the base, be provided with the mounting groove above the guide way, the mounting groove has relative and parallel arrangement fastening lateral wall and location lateral wall, with the location diapire that fastening lateral wall and location lateral wall are perpendicular, be provided with the opening that supplies the slider to pass through on the location diapire; the sensor is mounted in the mounting groove and has a side surface and a bottom surface which are perpendicular to each other, and the two spatial directions of the sensor are restrained by abutting the side surface of the sensor against the positioning side wall and abutting the bottom surface of the sensor against the positioning bottom wall.

The utility model has the advantages that: because the utility model discloses a mutually perpendicular's location lateral wall and location diapire confirm the position of two space directions of sensor, compare with prior art, the utility model discloses only need control position lateral wall and two machined surfaces of location diapire, just can the relation between accurate positioning sensor and the guide way, it is few to have installation component, advantages such as installation simple process and installation accuracy height.

Drawings

Fig. 1 shows a conventional displacement switch sensor fixing structure.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of a section D-D in fig. 2.

FIG. 4 is an enlarged view of the structure at E in FIG. 2

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 2, 3 and 4. The displacement switch of the utility model is provided with a strip cylindrical base 1, one end of the base 1 is an installation end, and the installation end is provided with a threaded sleeve 11 for installing the displacement switch on a host; the other end is a limit end with a limit end face 12. A square guide groove 13 extending along the length direction of the base is formed in the base 1, and an installation groove 14 extending along the length direction of the base 1 is formed above the guide groove 13. The mounting groove 14 has a securing sidewall 141 and a positioning sidewall 142 arranged oppositely and in parallel, and a positioning bottom wall 143 perpendicular to the securing sidewall 141 and the positioning sidewall 142. The positioning bottom wall 143 is provided with a slit 15 extending along the length direction of the base to provide a space for the slider 2 to pass through. The fastening side wall 141 is provided therein with a screw hole 16 penetrating from the outside of the base 1 to the mounting groove 14. The guide groove 13 is internally provided with a square sliding block 2 which is adaptive to the shape of the guide groove and can move in the guide groove 13. The slide block 2 is connected with a connecting rod 21 extending out of the threaded sleeve 11, an anti-backlash spring 22 is sleeved outside the connecting rod 21, one end of the anti-backlash spring 22 abuts against the threaded sleeve 11, and the other end of the anti-backlash spring abuts against a clamping ring 23 at the tail end of the connecting rod 21. The connecting rod 21 tail end is used for butt testee, and anti-backlash spring 22 is used for providing the pretightning force for connecting rod 21, eliminates the clearance between connecting rod 21 and the testee.

The utility model discloses length direction along mounting groove 14 is provided with 2 sensors 4, provides twice alarm signal. The sensor 4 has a side surface 41 and a bottom surface 42 perpendicular to each other, the side surface 41 of which abuts against the positioning side wall 142, and the bottom surface 42 of which abuts against the positioning bottom wall 23. A protective plate 5 is arranged on the side of the sensor 4 close to the fastening side wall 141, the fixing screw 3 is screwed in the threaded hole 16 of the fastening side wall 141, the protective plate 5 is pressed, the protective plate 5 presses the sensor 4, and the sensor 4 is pressed on the positioning side wall 142. Adopt protection sheet 5 can make sensor 4 atress even, difficult skew, and installation accuracy is high, also can prevent simultaneously that sensor 4 from being damaged by the oppression of set screw 3. The above describes only one fixing manner of the sensor 4, and in practice, the fixing manner of the sensor 4 can be various as long as the positioning side wall 142 and the positioning bottom wall 143 are used for determining the two spatial directions of the sensor 4. For example, after the sensor 4 is positioned by using the positioning sidewall 142 and the positioning bottom wall 143, it can be fixed by gluing or wedging on one side of the fixing sidewall 141; or by applying a compression means over the sensor 4.

The utility model discloses when processing is led location lateral wall 142 and location diapire 143 to guide way 13 is for being regarded as the size benchmark, confirms guide way 13 and location lateral wall 142 and location diapire 143's positional relation, keeps sensor 4 and slider 2's suitable interval, has both guaranteed that sensor 4 accurately detects slider 2, is not strikeed or oppression damage by slider 2 again. Because the utility model discloses a mutually perpendicular's location lateral wall 142 and location diapire 143 confirm the position of two space directions of sensor 4, adopt screw 3 to compress tightly sensor 4 simultaneously on fixed lateral wall 141. Compared with the prior art, the utility model discloses only need two machined surfaces of control position lateral wall 142 and location diapire 143 just can accurate positioning sensor 4 and the guide way 13 between the relation, it is few to have the installation component, advantages such as installation simple process and installation accuracy height.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Displacement switch's sensor location structure, including the base of rectangular shape, be provided with the guide way that extends along base length direction in the base, set up in the guide way and can be wherein gliding slider, the slider is connected with the connecting rod that extends to the base outside, its characterized in that: an installation groove is arranged above the guide groove, the installation groove is provided with a fastening side wall and a positioning side wall which are oppositely and parallelly arranged, a positioning bottom wall which is perpendicular to the fastening side wall and the positioning side wall is arranged, and a notch for the sliding block to pass through is formed in the positioning bottom wall; the sensor has mutually perpendicular side and bottom surfaces, the two spatial directions of the sensor being constrained by abutting their side surfaces against the locating side walls and their bottom surfaces against the locating bottom wall.

2. The sensor positioning structure of the displacement switch according to claim 1, wherein: and a wedge is plugged on one side of the fastening side wall or glue is coated on one side of the fastening side wall to fix the sensor.

3. The sensor positioning structure of the displacement switch according to claim 1, wherein: two sensors are arranged along the length direction of the guide groove.