Mobile phone nut detection jig

Abstract

The utility model belongs to the technical field of mobile phone nut detection tools, and discloses a mobile phone nut detection tool, which comprises a base and a state display device, and further comprises a floating detection module, the floating detection module comprises a linear bearing which is vertically arranged on the base in a penetrating manner, and a stepped probe group is arranged on the outer surface of the lower end of the linear bearing; the state display equipment is mounted at the upper end of the linear bearing; the magnetic attraction positioning module comprises a neodymium iron boron magnet array installed on the base, a positioning insert is installed on the neodymium iron boron magnet array, the stepped probe set comprises an inner diameter probe, an outer diameter probe and a depth probe, and the working end faces of the inner diameter probe, the outer diameter probe and the depth probe are arranged in a stepped mode. According to the utility model, through the stepped probe group of the floating detection module, synchronous detection of the inner diameter, the outer diameter and the depth of the nut can be completed at one time, automatic floating alignment of the detection probes can be realized, positioning deviation caused by manual operation is reduced, and detection stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone nut testing fixtures, and in particular to a mobile phone nut testing fixture. Background Technology

[0002] The mobile phone nut inspection fixture is a precision inspection tool specifically designed for the mobile phone assembly process. It is used to quickly and accurately verify the installation quality of the internal nuts of the mobile phone, including key parameters such as positional accuracy, thread integrity, and tightening torque, to ensure that the assembly process meets design requirements and improves product reliability.

[0003] In the current mobile phone assembly process, improper installation of nuts can lead to insufficient structural strength of the entire device. Existing inspection methods mostly rely on manual visual inspection or general-purpose go / no-go gauges, which suffer from low efficiency and high false detection rate. Therefore, we propose a mobile phone nut inspection fixture. Utility Model Content

[0004] In view of the fact that the existing methods for detecting mobile phone nuts mostly rely on manual visual inspection or general-purpose go / no-go gauges, which have problems such as low efficiency and high false detection rate, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A mobile phone nut testing fixture includes a base, a status display device, and further includes:

[0007] A floating detection module includes a linear bearing vertically mounted on the base, a stepped probe group on the lower outer surface of the linear bearing, and a status display device mounted on the upper end of the linear bearing. Through the vertical penetration design of the linear bearing and the stepped probe group, the detection probes can be automatically floated and aligned, reducing positioning deviations caused by manual operation and improving detection stability.

[0008] The magnetic positioning module includes a neodymium iron boron magnet array mounted on the base. The neodymium iron boron magnet array is equipped with a detachable and replaceable positioning insert. By using the neodymium iron boron magnet array and the detachable positioning insert, the mobile phone shell can be quickly attracted and fixed. Furthermore, the positioning insert can be replaced to adapt to different product models, thereby enhancing the versatility of the fixture.

[0009] As a technical solution of the mobile phone nut testing fixture of this utility model, the stepped probe group includes an inner diameter probe, an outer diameter probe and a depth probe arranged coaxially. The working end faces of the inner diameter probe, the outer diameter probe and the depth probe are arranged in a stepped manner to facilitate the simultaneous detection of the inner diameter, outer diameter and installation depth of the nut, while avoiding the waste of time in step-by-step detection and improving efficiency.

[0010] As a technical solution of the mobile phone nut testing fixture described in this utility model, the head of the inner diameter probe has a tapered guide structure, and its maximum diameter is 0.1mm smaller than the inner diameter of the standard nut, so as to ensure passability and ensure tolerance testing accuracy.

[0011] As a technical solution of the mobile phone nut testing fixture of this utility model, the outer diameter probe end face is provided with an annular groove, the groove width of the annular groove is matched with the theoretical width of the nut, so as to directly determine whether the outer diameter meets the standard by the contact state between the annular groove and the side wall of the nut, thus simplifying the judgment logic.

[0012] As a technical solution of the mobile phone nut testing fixture of this utility model, the bottom of the positioning insert has an integrally formed annular protrusion, and the annular protrusion and the positioning insert form a slot corresponding to the neodymium iron boron magnet array, and the slot is adapted to the neodymium iron boron magnet array. The positioning insert can be detachably and replaceably installed on the neodymium iron boron magnet array through the slot, so as to realize the quick locking of the positioning insert.

[0013] As a technical solution of the mobile phone nut testing fixture of this utility model, the top of the positioning insert is provided with a curved contour groove, which matches the mobile phone shell to prevent misjudgment caused by workpiece displacement during the testing process.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] 1. This utility model, through the stepped probe group of the floating detection module, can simultaneously detect the inner diameter, outer diameter and depth of the nut in one go. At the same time, it can realize the automatic floating alignment of the detection probe, reduce the positioning deviation caused by manual operation, and improve the detection stability.

[0016] 2. This utility model, through the design of the neodymium iron boron magnet array and detachable positioning insert of the magnetic positioning module, can not only quickly adsorb and fix the mobile phone shell, but also adapt to different models of products by replacing the positioning insert, thereby enhancing the versatility of the fixture. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Base; 2. Status display device; 31. Linear bearing; 321. Inner diameter probe; 322. Outer diameter probe; 3221. Annular groove; 323. Depth probe; 41. Neodymium iron boron magnet array; 42. Positioning insert; 421. Annular flange; 422. Curved contour groove. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figures 1-4 This invention provides a mobile phone nut testing fixture, which includes a base 1 and a status display device 2. The status display device 2 is a three-color LED device. The displacement trigger circuit of the floating detection module is switched on and off: a green indicator light indicates that the nut is installed correctly, a red indicator light indicates that the inner / outer diameter of the nut is out of tolerance, and a yellow indicator light indicates that the nut is not installed deep enough.

[0026] It also includes a floating detection module, which includes a linear bearing 31 vertically mounted on the base 1. The lower outer surface of the linear bearing 31 is provided with a stepped probe group. The status display device 2 is mounted on the upper end of the linear bearing 31. In application, through the vertical penetration design of the linear bearing 31 and the stepped probe group, the automatic floating alignment of the detection probe is realized, reducing the positioning deviation caused by manual operation and improving the detection stability.

[0027] The magnetic positioning module includes a neodymium iron boron magnet array 41 mounted on a base 1. The neodymium iron boron magnet array 41 is equipped with a detachable and replaceable positioning insert 42. In application, the neodymium iron boron magnet array 41 and the detachable positioning insert 42 can quickly attract and fix the mobile phone shell, and can also adapt to different models of products by replacing the positioning insert 42, thus enhancing the versatility of the fixture.

[0028] Reference Figures 1-4The stepped probe group includes an inner diameter probe 321, an outer diameter probe 322, and a depth probe 323 arranged coaxially. The working end faces of the inner diameter probe 321, outer diameter probe 322, and depth probe 323 are arranged in a stepped manner. In application, the stepped layout of the inner diameter probe 321, outer diameter probe 322, and depth probe 323 can simultaneously detect the inner diameter, outer diameter, and installation depth of the nut, avoiding the waste of time in step-by-step detection and improving efficiency.

[0029] Reference Figures 1-4 The head of the inner diameter probe 321 has a guide structure with a taper of 1:50. Its maximum diameter is 0.1 mm smaller than the inner diameter of the standard nut. In application, the taper design of the inner diameter probe 321 can facilitate the automatic guidance of the probe into the inner hole of the nut. The design of the maximum diameter being 0.1 mm smaller than the standard inner diameter ensures both passability and tolerance detection accuracy.

[0030] Reference Figures 1-4 The outer diameter probe 322 has an annular groove 3221 on its end face. The groove width of the annular groove 3221 matches the theoretical width of the nut. In application, the annular groove 3221 of the outer diameter probe 322 matches the theoretical width of the nut. The contact state between the annular groove 3221 and the side wall of the nut can be used to directly determine whether the outer diameter meets the standard, simplifying the judgment logic.

[0031] Reference Figures 1-4 The bottom of the positioning insert 42 has an integrally formed annular protrusion 421, and the annular protrusion 421 and the positioning insert 42 form a slot corresponding to the neodymium iron boron magnet array 41. The slot is adapted to the neodymium iron boron magnet array 41. The positioning insert 42 can be detachably and replaceably installed on the neodymium iron boron magnet array 41 through the slot. In application, the design of the positioning insert 42 being installed on the neodymium iron boron magnet array 41 through the slot can realize the quick locking of the positioning insert 42.

[0032] Reference Figures 1-4 The top of the positioning insert 42 is provided with a curved contour groove 422, which matches the mobile phone shell. In application, the curved contour groove 422 fits the curved surface of the mobile phone shell to prevent misjudgment caused by workpiece displacement during the detection process.

[0033] The working principle of this utility model is as follows: Select the corresponding positioning insert 42 according to the mobile phone model, and install it on the neodymium iron boron magnet array 41 using the slot. At the same time, calibrate the stepped probe group, and then put the mobile phone shell into the curved contour groove 422. At this time, the magnetic attraction makes the shell fit with the positioning insert 42, and manually press the shell to the positioning reference surface to trigger the adsorption and locking of the neodymium iron boron magnet array 41. Then press down the floating detection module, and the linear bearing 31 guides the probe group to move vertically. At this time, the inner diameter probe 321, outer diameter probe 322 and depth probe 323 are detected in sequence. At the same time, the status display device 2 displays whether it is qualified. When the green indicator light on the status display device 2 is lit, it means that the nut is installed correctly. When the red indicator light is lit, it means that the inner diameter / outer diameter of the nut is out of tolerance. When the yellow indicator light is lit, it means that the nut is installed too deep. Thus, the inner diameter, outer diameter and depth of the nut can be detected simultaneously at one time. At the same time, the detection probe can be automatically floated and aligned, reducing the positioning deviation caused by manual operation and improving the detection stability.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mobile phone nut testing fixture, comprising a base (1) and a status display device (2), characterized in that: Also includes: The floating detection module includes a linear bearing (31) vertically mounted on the base (1), a stepped probe group on the lower outer surface of the linear bearing (31), and a status display device (2) mounted on the upper end of the linear bearing (31). The magnetic positioning module includes a neodymium iron boron magnet array (41) mounted on the base (1), and a detachable and replaceable positioning insert (42) is mounted on the neodymium iron boron magnet array (41).

2. The mobile phone nut testing fixture according to claim 1, characterized in that: The stepped probe group includes an inner diameter probe (321), an outer diameter probe (322), and a depth probe (323) arranged coaxially, with the working end faces of the inner diameter probe (321), the outer diameter probe (322), and the depth probe (323) arranged in a stepped manner.

3. The mobile phone nut testing fixture according to claim 2, characterized in that: The head of the inner diameter probe (321) has a guide structure with a taper of 1:50, and its maximum diameter is 0.1 mm smaller than the inner diameter of the standard nut.

4. The mobile phone nut testing fixture according to claim 2, characterized in that: The outer diameter probe (322) has an annular groove (3221) on its end face, and the width of the annular groove (3221) matches the theoretical width of the nut.

5. The mobile phone nut testing fixture according to claim 1, characterized in that: The bottom of the positioning insert (42) has an integrally formed annular protrusion (421), and the annular protrusion (421) and the positioning insert (42) form a slot corresponding to the neodymium iron boron magnet array (41), and the slot is adapted to the neodymium iron boron magnet array (41). The positioning insert (42) can be detachably and replaceably installed on the neodymium iron boron magnet array (41) through the slot.

6. The mobile phone nut testing fixture according to claim 1, characterized in that: The top of the positioning insert (42) is provided with a curved contour groove (422), which matches the mobile phone casing.

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