Screw size detection device

Abstract

The utility model discloses a screw dimension detection device, which comprises an index plate and a detection step which are arranged up and down, the index plate is rotatably arranged relative to the detection step and is provided with a plurality of detection holes arranged at intervals, and the apertures of the plurality of detection holes are gradually reduced in a gradient manner so as to correspond to the outer diameters of studs of screws of different models. The detection step is provided with a plurality of steps which are connected with one another, and different distances formed between the index plate and the step surface of each step correspond to the lengths of studs of screws of different models, so that the sizes of the screws can be rapidly detected, and a detection mode of manually using a caliper is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw detection, especially a screw size detection device. BACKGROUND

[0002] Screw is commonly used fastener in mechanical field, and the outer diameter and length of its stud are core sizes, and a plurality of different types of screw specifications are divided according to the core sizes, but currently, screw stud outer diameter and stud length are measured manually by using a caliper, and detection data is recorded, therefore, manual detection of screw size is time-consuming and labor-consuming, and measurement error is prone to occur. UTILITY MODEL CONTENT

[0003] Therefore, the utility model provides a screw size detection device to replace the detection mode of manual use of a caliper to quickly detect screw size.

[0004] To achieve the above purpose, the utility model provides the technical scheme as follows:

[0005] The utility model provides a screw size detection device, including the index plate and detection ladder of upper and lower settings, the index plate is rotatable to the detection ladder, and a plurality of detection holes are set at intervals, and the hole diameter of a plurality of detection holes is gradiently decreased to correspond to the stud outer diameter of different types of screws, the detection ladder has a plurality of steps connected with each other, and different distances formed by the index plate and the step surface of each step correspond to the stud length of different types of screws.

[0006] Further, the detection ladder spirally surrounds the rotation shaft of the index plate.

[0007] Further, a plurality of detection holes surround the rotation shaft of the index plate at equal intervals.

[0008] Further, it further includes the shell with one side opening, the index plate rotatable assembly in the opening of the shell, and the detection ladder fixedly arranged in the shell.

[0009] Further, the index plate is rotatable to the central shaft of the shell through the bearing structure.

[0010] Further, the detection ladder is arranged in one or more.

[0011] Further, the shell is provided with a plurality of mounting cavities arranged at intervals inside and outside, a plurality of detection ladders are fixedly arranged in the corresponding mounting cavities, and surround the central shaft of the shell, a plurality of detection holes surround the central shaft of the shell and form a plurality of annular arrangements arranged at intervals, and the annular arrangement corresponds to the detection ladder one by one.

[0012] The technical scheme has the beneficial effects that:

[0013] By setting the hole diameters of the multiple detection holes in a gradient decreasing manner to correspond to the stud outer diameters of different types of screws, and inserting the studs of the screws into the corresponding detection holes, the stud outer diameters of the screws can be quickly distinguished, and then the index plate is rotated relative to the detection ladder, so that the stud ends of the screws inserted into the detection holes are blocked by the steps corresponding to the stud lengths, thereby realizing quick identification of the stud lengths of the screws, which can realize quick detection of the screw sizes, replace the detection mode of using a caliper by a person, reduce the difficulty of screw identification, save time and effort, and improve the operation efficiency and detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 shows a structural schematic view of a screw size detection device in an embodiment with a screw to be measured;

[0015] Figure 2 Fig. 2 shows an exploded view of the screw size detection device in the embodiment;

[0016] Figure 3 Fig. 3 shows a first position cross-sectional view of the screw size detection device in the embodiment with the screw to be measured;

[0017] Figure 4 Fig. 4 shows a second position cross-sectional view of the screw size detection device in the embodiment with the screw to be measured. DETAILED DESCRIPTION

[0018] To further illustrate the embodiments, the utility model provides drawings. These drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiments, and can be combined with the related description of the specification to explain the operation principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0019] The utility model will be further illustrated in combination with the drawings and specific embodiments.

[0020] Referring to Figures 1 to 4 Fig. 1, the embodiment provides a screw size detection device (hereinafter referred to as a detection device) for assisting in distinguishing the sizes of various types of screws.

[0021] As Figure 1 and Figure 2As shown, the detection device of the embodiment comprises a circular shell 3, and a scale disc 1 and detection steps arranged in an upper and lower manner. The scale disc 1 is arranged in one number, and the detection steps are arranged in two numbers, and the two detection steps are fixedly arranged, and the scale disc 1 is rotatably arranged relative to the two detection steps.

[0022] The scale disc 1 is provided with a plurality of detection holes 11 arranged at intervals, and the hole diameters of the plurality of detection holes 11 are gradiently decreased to correspond to the stud outer diameters of different types of screws 5. When the stud of the screw 5 is inserted into the corresponding detection hole 11, the head of the screw 5 abuts against the upper hole wall of the corresponding detection hole 11. At this time, the stud outer diameters of different screws 5 can be quickly distinguished.

[0023] As shown, Figure 3 The two detection steps each have a plurality of steps 23 connected to each other, and the scale disc 1 forms different distances with the step faces 231 of different steps 23 of each detection step to correspond to the stud lengths of different types of screws 5. At this time, the distance between the scale disc 1 and the steps 23 is the interval in the vertical direction, and the screw 5 is also vertically inserted into the detection hole 11. The extension direction of the stud of the screw 5 is parallel to the vertical direction. When the screw 5 is inserted into the detection hole 11, it is ensured that the stud end of the screw 5 corresponds to the lowermost step of the detection step. At this time, the distance between the scale disc 1 and the lowermost step is the largest. Then, the scale disc 1 is rotated to make the screw 5 rotate towards the uppermost step until the stud end of the screw 5 is blocked by the step 23 corresponding to the stud length of the screw 5. Then, the stud length of different screws 5 can be quickly distinguished through the pre-set scale lines on the outer side wall of the shell 3.

[0024] In the embodiment, as shown in Figure 3 and Figure 4 The shell 3 has an opening on the upward side, and the scale disc 1 is rotatably assembled in the upper opening of the shell 3 through the bearing structure 4. The bearing structure 4 is assembled in the central shaft of the shell 3 to ensure that the rotation axis of the scale disc 1 coincides with the central axis of the shell 3.

[0025] In particular, the shell 3 is provided with two mounting cavities 31 arranged at an inner and outer interval, and the two mounting cavities 31 are coaxially arranged and adopt a ring cavity structure. In addition, the shell 3 and the two detection steps are formed by one-time molding through the shell drawing process, and adopt a plastic material to ensure that the entire detection device is light in weight and low in manufacturing cost.

[0026] In addition, the two detection steps are fixedly assembled in the corresponding mounting cavities 31 and are spirally wrapped around the central shaft of the shell 3.

[0027] The plurality of detection holes 11 are equidistantly arranged around the central axis of the shell 3, and form two annular arrangements with a spacing, and the two annular arrangements correspond to the two detection steps respectively, and the detection holes 11 of the two annular arrangements are respectively communicated with the corresponding mounting cavities 31.

[0028] In the embodiment, as shown in the figure, Figures 2 to 4 The two detection steps are arranged in an inner and outer distribution, and are defined as an inner circle detection step 21 and an outer circle detection step 22 respectively, and the two mounting cavities 31 are defined as an inner mounting cavity and an outer mounting cavity respectively, the bearing structure 4 is assembled at the center of the inner mounting cavity, the inner circle detection step 21 is located between the inner mounting cavity and the bearing structure 4, and the outer circle detection step 22 is located in the outer mounting cavity.

[0029] According to the relevant provisions of the national standard "GB / T70.1-2008 Internal Hexagonal Cylinder Head Screws", the shank outer diameter of various screws 5 ranges from M1.6 to M42, and the shank length ranges from 2.5mm to 120mm, therefore, the measurement range of the outer circle detection step 22 corresponds to M12 to M42, and the corresponding shank length range is 5mm to 120mm, the step height of the outer circle detection step 22 is 5mm, and the scale line is marked on the outer side wall of the shell 3 to match the identification of the screw size in the range of M12 to M42; in addition, the measurement range of the inner circle detection step 21 corresponds to M1.6 to M10, and the corresponding shank length range is 2.5mm to 100mm, and the step heights of the inner circle detection step 21 are not equal to match the screw size in the range of M1.6 to M10, and the scale line is marked on the outer side wall of the shell 3 to match the identification of the screw size in the range of M1.6 to M10.

[0030] By arranging the hole diameters of the plurality of detection holes 11 in a gradient decreasing manner to correspond to the shank outer diameters of different types of screws 5, and inserting the shanks of the screws 5 into the corresponding detection holes 11, the shank outer diameters of the screws 5 can be quickly identified, and then the index plate 1 is rotated to drive the screws 5 on the index plate 1 to rotate synchronously, that is, the shank ends of the screws 5 inserted into the detection holes 11 are blocked by the steps 23 corresponding to the shank lengths, thereby achieving quick identification of the shank lengths of the screws 5, so that the screw size can be quickly detected to replace the detection method of using a caliper by manual operation, and the difficulty of identifying the screws 5 is reduced, time and labor are saved, the operation efficiency is high, and the detection accuracy is also high.

[0031] Of course, in other embodiments, the index plate 1 can also be stationary, and the detection steps can be rotated synchronously with the shell 3, so that the screw size can also be quickly identified.

[0032] The number of detection steps can also be one or more than three, and the corresponding mounting cavities 31 are arranged correspondingly.

[0033] In addition, the distance between the plurality of detection holes 11 can also be set as unequal distance, so that different screw sizes can also be quickly distinguished.

[0034] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all of them are within the protection scope of the utility model.

Claims

1. A screw size detection apparatus, characterized by: The device comprises an upper and lower index plate and a detection ladder; The index plate is rotatably arranged relative to the detection ladder and is provided with a plurality of detection holes arranged at intervals, and the diameters of the plurality of detection holes are gradiently decreased to correspond to the outer diameters of the studs of different types of screws; The detection ladder has a plurality of steps connected to each other, and the index plate corresponds to the different distances formed by each step surface to correspond to the lengths of the studs of different types of screws.

2. The screw size detection apparatus according to claim 1, characterized by: The detection ladder spirally surrounds the rotation axis of the index plate.

3. The screw size detection apparatus according to claim 2, characterized by: The plurality of detection holes surround the rotation axis of the index plate at equal intervals.

4. The screw size detection apparatus according to any one of claims 1 to 3, characterized by: The device further comprises a housing with an open side; the index plate is rotatably arranged in the opening of the housing, and the detection ladder is fixedly arranged in the housing.

5. The screw size detection apparatus according to claim 4, characterized by: The index plate is rotatably arranged on the central axis of the housing through a bearing structure.

6. The screw size detection apparatus according to claim 5, characterized by: The number of the detection ladders is one or more.

7. The screw size detection apparatus according to claim 6, characterized by: The housing is provided with a plurality of mounting cavities arranged at intervals inside and outside, and the plurality of detection ladders are respectively fixed in the corresponding mounting cavities and respectively surround the central axis of the housing; the plurality of detection holes surround the central axis of the housing and form a plurality of annular arrangements arranged at intervals, and the annular arrangements one-to-one correspond to the detection ladders.

Images