Fixture for inspecting screws

By designing a fixture with a multifunctional detection area and detection slot, the problem of inconvenient screw specification detection in the existing technology is solved, fast and accurate screw parameter detection is achieved, and assembly efficiency and accuracy are improved.

CN223319716UActive Publication Date: 2025-09-09ZHONGSHAN GCHIMAY ELECTRIC APPLIANCE
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Patent Information

Application Number
CN202422847798.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-09-09
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing screw detection jigs can only detect one parameter, are inconvenient to operate, and cannot quickly and accurately distinguish screws of different specifications, affecting assembly efficiency and accuracy.

Method used

A fixture is designed, which includes a base, a first detection area, a second detection area and a third detection area. Multiple detection holes and detection slots of different specifications are set respectively for detecting screw diameter, nut diameter and screw length, and rapid detection is achieved in combination with scale lines.

Benefits of technology

It improves the accuracy and efficiency of screw assembly, avoids the tediousness of screw comparison and damage to screw holes caused by wrong installation, and improves the inspection and assembly efficiency at the production site.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a jig for detecting screws. The jig comprises a base, and a first detection area, a second detection area and a third detection area which are arranged on the base, the first detection area is provided with a plurality of first detection holes of different specifications, and the first detection holes are used for detecting the diameters of screws. The second detection area is provided with a plurality of second detection holes of different specifications, and the second detection holes are used for detecting the diameter of the nut. The third detection area is provided with a detection groove, one side of the detection groove is provided with scale marks, the detection groove is used for placing screws, and the scale marks are used for reading the lengths of the screws. According to the utility model, parameters such as the diameter of a screw, the diameter of a nut, the length of the screw and the like can be detected, an operator can conveniently carry out rapid detection and assembly on a production site, the complexity of comparison of a large number of screws is avoided, the influence on efficiency and the damage to a screw hole caused by wrong installation of the screws are also avoided, and the accuracy and efficiency of screw assembly are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, in particular to a fixture for inspecting screws. Background Art

[0002] Screws are hardware that are frequently used on production sites and come in a variety of sizes. During the operation process, a large number of screws of various sizes may be used incorrectly, especially screws of similar sizes cannot be accurately distinguished, resulting in frequent replacements during the assembly process, affecting assembly efficiency and even causing screw holes and other locations to be screwed out. Therefore, a jig that can quickly detect screw specifications on the production site is needed to ensure accurate and efficient screw assembly. There are also some jigs for detecting screws in the existing technology, but most of them can only detect one parameter of the screw and are not very convenient to operate. Utility Model Content

[0003] The purpose of the present invention is to address the deficiencies in the above-mentioned background technology and to provide a fixture suitable for on-site use and capable of quickly detecting screw specifications, so as to improve the accuracy and efficiency of screw assembly.

[0004] In order to achieve the above-mentioned object, the utility model provides a fixture for inspecting screws, comprising a base and a first inspection area, a second inspection area and a third inspection area arranged on the base;

[0005] The first detection area is provided with a plurality of first detection holes of different specifications, and the first detection holes are used to detect the diameter of the screw;

[0006] The second detection area is provided with a plurality of second detection holes of different specifications, and the second detection holes are used to detect the diameter of the nut;

[0007] The third detection area is provided with a detection groove, and a scale line is provided on one side of the detection groove. The detection groove is used to place screws, and the scale line is used to read the length of the screws.

[0008] Furthermore, the first detection hole is set to be an inner hexagon, a nut corresponding to the specification is set in the inner hexagon hole, and the nut 4 is an outer hexagon.

[0009] Furthermore, the nut is detachably connected to the first detection hole.

[0010] Furthermore, the nut is magnetically connected or interference fit with the first detection hole.

[0011] Furthermore, the second detection hole is configured to be circular or hexagonal, and the second detection hole matches the shape of the nut.

[0012] Furthermore, the detection slot is configured to be V-shaped, and the screw remains parallel to the scale line when placed in the detection slot.

[0013] Furthermore, the length of the scale line is set to be greater than the length of the detection slot.

[0014] The above solution of the utility model has the following beneficial effects:

[0015] The screw inspection jig provided by the utility model can inspect parameters such as screw diameter, nut diameter, and screw length through the first inspection hole, second inspection hole, and inspection slot respectively provided in the first inspection area, the second inspection area, and the third inspection area, thereby facilitating rapid inspection and assembly by operators at the production site, avoiding the tedious comparison of a large number of screws, and also preventing the efficiency from being affected by incorrect screw installation and damage to the screw holes, thereby improving the accuracy and efficiency of screw assembly;

[0016] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the bolt detection in the first detection area of ​​the utility model;

[0019] Figure 3 This is a schematic diagram of the bolt detection in the second detection area of ​​the utility model;

[0020] Figure 4 This is a schematic diagram of the bolt inspection in the third inspection area of ​​the present invention.

[0021] [Description of Reference Numerals]

[0022] 1-base; 2-first detection hole; 3-screw; 4-nut; 5-second detection hole; 6-nut; 7-detection slot; 8-scale line. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a locking connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1-4 As shown, an embodiment of the present invention provides a fixture for inspecting screws, comprising a base 1 and a first inspection area, a second inspection area, and a third inspection area arranged on the base.

[0027] In this embodiment, the first inspection area is provided with multiple first inspection holes 2 of different sizes, which are used to detect the diameter of the screw 3. The illustrated first inspection area is provided with six first inspection holes 2, corresponding to screw diameters of M2, M2.5, M3, M4, M5, and M6, respectively. Therefore, six screw diameter specifications can be inspected. Of course, this embodiment is not limited to six specifications. In actual use, the fixture can be configured or replaced with more specifications to further change or increase or decrease the screw 3 diameter specifications that can be inspected.

[0028] As a preferred embodiment, the first detection hole 2 in this embodiment is configured as a hexagonal inner hole, and a nut 4 corresponding to the specification of the screw 3 is disposed within the hexagonal inner hole. During testing, the nut 4 is placed into the corresponding hexagonal inner hole. Since the nut 4 itself is also an outer hexagonal shape, it can be rotated and limited by the hexagonal inner hole. During testing, the screw 3 is inserted into the corresponding nut 4 and turned. If a match is found, the specification of the screw 3 can be confirmed.

[0029] As an optional embodiment, this embodiment utilizes a removable connection between the nut 4 and the hexagonal socket. Because the hexagonal socket matches the shape of the nut 4, the nut 4 can be stably positioned within the hexagonal socket. Alternatively, a magnetic or interference fit method can be employed to restrict the nut 4's axial freedom, ensuring its stable placement within the hexagonal socket and preventing loss of the nut 4 due to frequent handling of the fixture during testing.

[0030] In this embodiment, the second inspection area is provided with six second inspection holes 5, which are used to detect the diameter of the nut 6 of the screw 3. The illustrated second inspection holes 5 are provided with six sizes, namely Φ4, Φ4.5, Φ5.5, Φ7, Φ8.5, and Φ10, respectively. Therefore, six different diameters of nuts 6 can be inspected. Similarly, this embodiment is not limited to six sizes; in practice, the fixture can be configured or replaced with more sizes to further change or increase or decrease the diameters of nuts 6 that can be inspected.

[0031] As a preferred embodiment, the second inspection hole 5 in this embodiment is circular to test circular nuts 6. During testing, the screw 3 is reversed and the nut 6 is inserted into the corresponding second inspection hole 5. If a match is found, the specifications of the nut 6 can be confirmed. Of course, if the nut 6 is an external hexagon, the second inspection hole 5 can also be configured as an internal hexagon, etc.

[0032] In this embodiment, the third inspection area is provided with an inspection slot 7 for horizontally placing the screw 3. A scale line 8 is also provided on one side of the inspection slot 7. When the screw 3 is placed in the inspection slot 7, the position of the nut 6 is flush with the end surface of the base 1. Therefore, the scale value corresponding to the end of the screw 3 is the length of the screw 3, which can be quickly confirmed by reading the scale value.

[0033] As a preferred embodiment, the detection slot 7 in this embodiment is configured in a V-shape. This allows the screw 3 to be more stable when placed in the detection slot 7 and remain parallel to the scale line 8, thereby ensuring the accuracy of length detection. It should be noted that the length of the scale line 8 in this embodiment is configured to be greater than the length of the detection slot 7. Therefore, when testing long screws, if the screw 3 is longer than the length of the detection slot 7, the screw 3 can be lifted or directly placed on the scale line 8 to read the corresponding scale value.

[0034] In addition, a positioning structure or a fixing platform matched with the base 1 can be provided on the base 1 so that the entire fixture can be stably placed in the detection position, which is convenient for the operator to perform rapid detection.

[0035] In summary, the fixture for detecting screws provided in this embodiment can detect parameters such as the diameter of the screw 3, the diameter of the nut 6, and the length of the screw 3, which facilitates operators to quickly detect and assemble at the production site, avoids the tediousness of comparing a large number of screws 3, and avoids the incorrect installation of the screw 3 affecting efficiency and causing damage to the screw hole, thereby improving the accuracy and efficiency of the assembly of the screw 3.

[0036] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A fixture for inspecting screws, characterized in that: It includes a base and a first detection area, a second detection area and a third detection area arranged on the base; The first detection area is provided with a plurality of first detection holes of different specifications, and the first detection holes are used to detect the diameter of the screw; The second detection area is provided with a plurality of second detection holes of different specifications, and the second detection holes are used to detect the diameter of the nut; The third detection area is provided with a detection groove, and a scale line is provided on one side of the detection groove. The detection groove is used to place screws, and the scale line is used to read the length of the screws.

2. A fixture for inspecting screws according to claim 1, characterized in that: The first detection hole is set to be an inner hexagonal shape, a nut corresponding to the specification is set in the inner hexagonal hole, and the nut (4) is an outer hexagonal shape.

3. A fixture for inspecting screws according to claim 2, characterized in that: The nut is detachably connected to the first detection hole.

4. A fixture for inspecting screws according to claim 3, characterized in that: The nut is magnetically connected or interference-fitted with the first detection hole.

5. The fixture for inspecting screws according to claim 1, characterized in that: The second detection hole is configured to be circular or hexagonal, and the second detection hole matches the shape of the nut.

6. The fixture for inspecting screws according to claim 1, characterized in that: The detection slot is configured to be V-shaped, and the screw remains parallel to the scale line when placed in the detection slot.

7. The fixture for inspecting screws according to claim 1, characterized in that: The length of the scale line is set to be greater than the length of the detection slot.