CN216278834U

CN216278834U - Production jig for assembling proximity sensor magnetic core group

Info

Publication number: CN216278834U
Application number: CN202122714820.5U
Authority: CN
Inventors: 曾彬; 李斌林
Original assignee: Shenzhen Boyi Jingke Technology Co ltd
Current assignee: Shenzhen Boyi Jingke Technology Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-12
Anticipated expiration: 2031-11-08

Abstract

The utility model relates to a production jig for assembling a proximity sensor magnetic core group, which comprises a jig bottom plate and a PCB fixing plate for fixing a proximity sensor PCB; the PCB fixing plate is fixed on one side of the jig base plate, a guide rail pointing to the PCB fixed on the PCB fixing plate is arranged on the other side of the jig base plate, and a sliding block sliding along the guide rail is arranged on the guide rail; the magnetic core group fixing plate is also included, and a group of magnetic cores are sequentially fixed on the side surface of the magnetic core group fixing plate; the magnetic core group fixing plate is fixed on the sliding block, and when the magnetic core group fixing plate slides along the guide rail along with the sliding block and is in contact with the PCB on the PCB fixing plate, the magnetic cores are assembled on the PCB respectively. The production jig provided by the utility model can be used for assembling a group of magnetic cores at the same time, so that the working efficiency is improved.

Description

Production jig for assembling proximity sensor magnetic core group

Technical Field

The utility model relates to the field of proximity sensor production, in particular to a production jig for assembling a proximity sensor magnetic core group.

Background

The proximity sensor is a generic name of a sensor for detecting a proximity object without touching the object to be detected, instead of a contact detection method such as a limit switch. The movement information and the presence information of the detection object can be converted into an electric signal. The detection method for converting the electric signal to the electric signal includes a method of using an eddy current generated in a metal object to be detected by electromagnetic induction, a method of changing the capacity of the electric signal by the approach of a target object, and a method of using a guide switch.

The inductive proximity sensor detects a magnetic loss caused by an eddy current generated on a surface of a conductor by an influence of an external magnetic field. An alternating magnetic field is generated in the detection coil, and a change in impedance due to an eddy current generated in the metal body of the detection body is detected.

At present, there is a proximity sensor, which includes a PCB in its structure, and a set of magnetic cores is disposed on one side of the PCB, specifically, a set of seven magnetic cores are disposed on the PCB in the shape of a fence, and a magnetic core is mounted on each vertical rod on the PCB.

Under the step technology of the PCB and the magnetic core group of the proximity sensor, most of the jigs in the market are PCBs of single products fixed on the jigs, and then glue is dispensed on the magnetic core group after the PCB is placed in the middle manually, so that the production efficiency of the proximity sensor is greatly reduced, and a large amount of manual work is consumed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a production jig for assembling a proximity sensor magnetic core group, aiming at realizing faster and more accurate assembling of a PCB and the magnetic core group of the proximity sensor.

The technical scheme adopted by the utility model for realizing the technical purpose is as follows: a production jig for assembling a proximity sensor magnetic core group comprises a jig bottom plate and a PCB fixing plate for fixing a proximity sensor PCB; the PCB fixing plate is fixed on one side of the jig base plate, a guide rail pointing to the PCB fixed on the PCB fixing plate is arranged on the other side of the jig base plate, and a sliding block sliding along the guide rail is arranged on the guide rail; the magnetic core group fixing plate is also included, and a group of magnetic cores are sequentially fixed on the side surface of the magnetic core group fixing plate; the magnetic core group fixing plate is fixed on the sliding block, and when the magnetic core group fixing plate slides along the guide rail along with the sliding block and is in contact with the PCB on the PCB fixing plate, the magnetic cores are assembled on the PCB respectively.

Further, in the above-mentioned production tool for assembling proximity sensor magnetic core group: one side of the magnetic core group fixing plate is provided with a fixing hole for fixing the magnetic core according to the position of the magnetic core on the side surface of the PCB, and the side opposite to the fixing hole is provided with a magnet groove for installing the bar-shaped magnet.

Further, in the above-mentioned production tool for assembling proximity sensor magnetic core group: the magnetic body of the circular ring shape of the magnetic core is provided with a pair of grooves at the symmetrical positions of the periphery of the circular shape, the fixed hole is in an arched door shape, the middle part of the fixed hole is provided with a fixed shaft corresponding to the round hole in the middle of the magnetic core, and the center of the door opening is provided with a door pile symmetrical to the grooves of the magnetic core.

Further, in the above-mentioned production tool for assembling proximity sensor magnetic core group: the magnetic core group fixing plate is fixed on the sliding block through a sliding block connecting plate.

The production jig provided by the utility model can be used for assembling a group of magnetic cores at the same time, so that the working efficiency is improved.

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a top view of a jig according to embodiment 1 of the present invention;

FIG. 2 is a front view of a jig according to embodiment 1 of the present invention;

FIG. 3 is a left side view of a jig according to embodiment 1 of the present invention;

FIG. 4 is an exploded view of a jig according to embodiment 1 of the present invention;

FIG. 5 is an assembly view of a magnetic core according to embodiment 1 of the present invention;

FIG. 6 is a first diagram of the working status of the jig according to embodiment 1 of the present invention;

FIG. 7 is a diagram showing a working state of a jig according to embodiment 1 of the present invention;

fig. 8 is a diagram (iii) showing the working state of the jig according to embodiment 1 of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the present embodiment is a production jig for assembling a proximity sensor magnetic core group, which includes a jig base plate 1 and a PCB fixing plate 2 for fixing a proximity sensor PCB; as shown in fig. 2, 3 and 4, the jig base plate 1 is a workbench, and anti-slip pads are mounted on the lower surface of the jig base plate 1 by screws, so that the jig base plate can be mounted on other workbenches, the PCB fixing plate 2 is fixed on one side of the jig base plate 1, a guide rail 4 pointing to a PCB3 fixed on the PCB fixing plate 2 is arranged on the other side of the jig base plate 1, the heat conduction 4 is perpendicular to the PCB fixing plate 2, and a sliding block 5 sliding along the guide rail 4 is arranged on the guide rail 4; the slider 5 can drive the magnetic core 9 to be close to the PCB3 provided with the proximity sensor circuit, and the magnetic core assembly fixing plate 7 is further included, and a group of magnetic cores 9 are sequentially fixed on the side face of the magnetic core assembly fixing plate 7; the magnetic core group fixing plate 7 is fixed on the sliding block 5, and when the magnetic core group fixing plate slides along the guide rail 4 along with the sliding block 5 and is in contact with the PCB3 on the PCB fixing plate 2, the magnetic cores 9 are respectively assembled on the PCB 3.

In this embodiment, the PCB3 carrying the proximity sensor circuit is shown in fig. 4, and is similar to a fence in that several vertical boards are connected by a transverse connector block.

In this embodiment, nine fixing holes 7-1 for fixing the magnetic core 9 are provided on one surface of the core group fixing plate 7 at the core positions on the side surface of the PCB3, and a magnet slot 7-2 for mounting the bar magnet 8 is provided on the surface opposite to the fixing holes 7-1. The magnetic cores 9 are fitted into the nine fixing holes 7-1 in sequence, as shown in fig. 4 and 5; the magnetic core 9 is a circular magnetic body, a pair of grooves 9-2 are symmetrically arranged at the periphery of the circle, the fixing hole 7-1 is in an arched door shape, the fixing shaft 7-1-1 corresponding to the round hole 9-1 in the middle of the magnetic core 9 is arranged in the middle, and the door pile 7-1-2 symmetrical to the groove 9-2 of the magnetic core 9 is arranged in the center of the door. As shown in fig. 5.

In this embodiment, the magnetic core fixing device further includes a slider connecting plate 6 for fixing the magnetic core fixing plate 7 on the slider 5, and the magnetic core fixing plate 7 is fixed on the slider connecting plate 6 and then fixes the slider connecting plate 6 and the slider 5 to each other by screws.

In this embodiment, the assembly process of the production jig for assembling the proximity sensor magnetic core group is very simple and mainly includes the following steps:

s1, fixing the anti-skid pad feet below the jig bottom plate 1 by using screws, and facilitating the installation of the jig on the workbench.

And S2, assembling the positioning pins on the PCB fixing plate 2, and fixing the PCB3 on the corresponding positioning holes 2-2 on the PCB fixing plate 2 by utilizing the positioning holes 3-1 at the two ends of the PCB3 to be matched with the positioning pins. Therefore, the consistency of the length structure can be ensured, and the consistency of the performance of the finished product can be effectively confirmed.

And S3, screwing the PCB fixing plate 2 fixed with the PCB4 on one side of the jig base plate 1.

And S4, mounting the guide rail 4 and the slider 5 on the jig base plate 1 by screws, wherein the guide rail 4 is perpendicular to the PCB fixing plate 3, and when the slider 5 slides on the guide rail 4, the slider approaches to the PCB3 on the PCB fixing plate 2 or moves away from the near side of the PCB 3.

S5, the magnetic cores 9 are respectively assembled into the arch-shaped fixing holes 7-1 of the magnetic core fixing plate 7, and the bar-shaped magnet 8 is inserted into the magnet slot 7-1 at the back of the magnetic core fixing plate 7, so that the magnetic cores 9 in the fixing holes 7-1 can be attracted.

And S6, fixing the magnetic core fixing plate 7 on the slide block connecting plate 6 by using screws, and connecting the slide block connecting plate 6 with the slide block 5.

S7, the slider 5 with the core fixing plate 7 slides along the guide rail 4, as shown in fig. 6, the core 9 in the core fixing plate 7 is close to the PCB3, as shown in fig. 7, the core 9 is transferred to the PCB3, as shown in fig. 8, the magnet 8 can be removed first when the core 9 is transferred, so that the core fixing plate 7 does not generate attraction force to the core 9, the cores 9 are respectively attracted to the iron on the installation position of the PCB3, and the slider slides with the PCB fixing plate 7, as shown in fig. 8.

Claims

1. A production jig for assembling a proximity sensor magnetic core group comprises a jig bottom plate (1) and a PCB fixing plate (2) for fixing a proximity sensor PCB; the method is characterized in that:

the PCB fixing plate (2) is fixed on one side of the jig base plate (1), a guide rail (4) pointing to the PCB (3) fixed on the PCB fixing plate (2) is arranged on the other side of the jig base plate (1), and a sliding block (5) sliding along the guide rail (4) is arranged on the guide rail (4); the magnetic core group fixing plate is characterized by further comprising a magnetic core group fixing plate (7), and a group of magnetic cores (9) are sequentially fixed on the side face of the magnetic core group fixing plate (7); and the magnetic core group fixing plate (7) is fixed on the sliding block (5), and when the sliding block (5) slides along the guide rail (4) and is contacted with the PCB (3) on the PCB fixing plate (2), the magnetic cores (9) are respectively assembled on the PCB (3).

2. The production tool for assembling the proximity sensor magnetic core assembly according to claim 1, wherein: one surface of the magnetic core group fixing plate (7) is provided with a fixing hole (7-1) for fixing a magnetic core (9) according to the magnetic core position on the side surface of the PCB (3), and the surface opposite to the fixing hole (7-1) is provided with a magnet groove (7-2) for installing a bar magnet (8).

3. The production tool for assembling the proximity sensor magnetic core assembly according to claim 2, wherein: the magnetic core (9) is a circular magnetic body, a pair of grooves (9-2) are formed in the symmetrical positions of the periphery of the circle, the fixing hole (7-1) is arched, the fixing shaft (7-1-1) corresponding to the round hole (9-1) in the middle of the magnetic core (9) is arranged in the middle of the fixing hole, and the door pile (7-1-2) symmetrical to the grooves (9-2) of the magnetic core (9) is arranged in the center of the door.

4. The production tool for assembling the proximity sensor magnetic core assembly according to claim 1, wherein: the magnetic core group fixing plate is characterized by further comprising a sliding block connecting plate (6) for fixing the magnetic core group fixing plate (7) on the sliding block (5).