Screw size rapid measuring device

Abstract

The invention provides a screw size rapid measuring device, which comprises a measuring table, a nut fixing unit and a ring gauge, and is characterized in that the measuring table is provided with a working plane; the nut fixing unit comprises a fixed part, a movable part and an adjusting part, the fixed part is fixedly installed on the working plane, the movable part and the fixed part are oppositely arranged, and the adjusting part is connected with the fixed part and the movable part and can adjust the distance between the fixed part and the movable part; the diameters of the plurality of ring gauges are gradually increased; wherein a nut of the screw is vertically fixed on the working plane based on the nut fixing unit, the plurality of ring gauges sequentially and vertically fall down from the position right above the screw, and the size of the ring gauge tightly matched with a screw rod of the screw is the outer diameter of the screw rod of the screw. According to the quick measuring device with the structure, the working platform can be used for realizing vertical arrangement of the screw, and the screw cap fixing device is used for realizing fixation of the screw, so that subsequent outer diameter measurement of the screw through a ring gauge is facilitated, and whether matching of the screw and an opponent piece is reasonable or not can be quickly judged.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring tooling, and particularly relates to a fast screw size measuring device. Background Art

[0002] Screws play an important role in industry. They use the physics and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually tighten objects and parts. Screws are used in almost all devices, such as mobile phones, computers, game consoles, etc.

[0003] Before connection, you need to choose screws that match the counterpart, which requires knowing the diameter of the screws. Traditional measurement methods are mostly obtained by multiple measurements with a handheld V-type micrometer. The above methods require manual rotation to improve accuracy, but the number of turns each time cannot be controlled, so it is difficult to determine whether the thread has been rotated to its maximum value. Moreover, the screw will rotate as soon as the V-type micrometer is applied with a little force, and the measured value may not be the maximum outer diameter of the thread, causing trouble for analysis of abnormalities. In addition, as the equipment tends to be lightweight, the size of the screws is getting smaller and smaller, and it is almost impossible to test the outer diameter of small screws by hand.

[0004] Therefore, in view of the above shortcomings, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a device for quickly measuring screw dimensions to solve the problem of difficulty in measuring the outer diameter of screws in the prior art.

[0006] The present invention provides a device for quickly measuring screw size, comprising:

[0007] A measuring platform, wherein a working plane is provided on the measuring platform;

[0008] A nut fixing unit, comprising a fixing part, a movable part and an adjusting part, wherein the fixing part is fixedly mounted on the working plane, the movable part is arranged opposite to the fixing part, and the adjusting part is respectively connected to the fixing part and the movable part and can adjust the distance between the fixing part and the movable part;

[0009] Ring gauges, wherein the ring gauges are multiple and the diameters of the multiple ring gauges are arranged in increasing order;

[0010] The nut of the screw is vertically fixed to the working plane based on the nut fixing unit, and a plurality of ring gauges are vertically dropped in sequence from directly above the screw. The size of the ring gauge that is tightly fitted with the screw rod of the screw is the outer diameter of the screw rod of the screw.

[0011] The screw size rapid measurement device provided by the present invention may also have the following additional technical features:

[0012] In a specific embodiment of the present invention, a first positioning portion is provided on a side surface of the fixed portion, and a second positioning portion is provided on a side surface of the movable portion. The first positioning portion and the second positioning portion are arranged opposite to each other to clamp and fix the nut.

[0013] In a specific embodiment of the present invention, the first positioning portion and the second positioning portion are formed as arc-shaped surfaces, and the two arc-shaped surfaces are coaxially arranged.

[0014] In a specific embodiment of the present invention, the sum of the central angles of the arcuate surfaces of the first positioning portion and the second positioning portion is less than 300°.

[0015] In a specific embodiment of the present invention, the fixed part includes a first fixed block, a second fixed block and two guide rods, and the guide rods are parallelly arranged between the first fixed block and the second fixed block; the movable part is slidably sleeved on the guide rods; the adjusting part is a screw with a knob at the end, and the knob is inserted into the first fixed block and forms a screw slider structure with the movable part.

[0016] In a specific embodiment of the present invention, it also includes a mounting platform, two brackets mounted on the mounting platform, and a driving rod horizontally arranged between the two brackets. The measuring platform is fixedly connected to the driving rod and can rotate under the drive of the driving rod.

[0017] In a specific embodiment of the present invention, a gear is sleeved on the end of the driving rod; a driving part is also slidably installed on the mounting platform, and the upper surface of the driving part is a rack, which is meshed with the gear. The driving part is suitable for driving the gear, the driving rod and the measuring platform to rotate by sliding.

[0018] In a specific embodiment of the present invention, the cross-section of the driving part is T-shaped; a strip-shaped limiting part is also provided on the mounting platform, and the limiting part is provided with a limiting groove adapted to the cross-section of the driving part, and the driving part is slidably installed in the limiting groove.

[0019] In a specific implementation of the present invention, a slide groove is provided on the mounting platform, a slider is provided on the driving part, and the slider is arranged in the slide groove.

[0020] In a specific embodiment of the present invention, the angle between the maximum rotation angle of the measuring platform and the vertical direction is less than 90°.

[0021] The present invention provides a measuring platform with a working plane and a nut fixing unit arranged on the measuring platform, and the nut fixing unit includes a fixed part, a movable part and an adjustable movable part to achieve an adjustment part for adjusting the distance between the fixed part and the movable part. In this way, the working platform can be used to realize the vertical arrangement of the screw, and the nut fixing device can be used to realize the fixing of the screw, thereby facilitating the subsequent measurement of the outer diameter of the screw by a ring gauge, so as to quickly judge whether the combination of the screw and the counterpart is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a portion of the structure of a device for quickly measuring screw dimensions according to an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the structure of a device for rapid screw size measurement in an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 100- Rapid measuring device;

[0027] 10-measuring table; 20-nut fixing unit, 21-fixing part, 22-movable part, 23-adjusting part;

[0028] 30-ring gauge; 40-mounting table, 41-bracket, 42-driving rod, 43-gear, 44-slideway, 45-limiting part; 50-driving part, 51-rack; 60-screw, 61-nut. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0030] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0031] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0032] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0033] Reference Figure 1-2The present invention provides a screw size rapid measurement device 100, comprising a measuring platform 10, a nut fixing unit 20 and a ring gauge 30, wherein a working plane is provided on the measuring platform 10; the nut fixing unit 20 comprises a fixed portion 21, a movable portion 22 and an adjusting portion 23, wherein the fixed portion 21 is fixedly mounted on the working plane, the movable portion 22 is arranged opposite to the fixed portion 21, the adjusting portion 23 is respectively connected to the fixed portion 21 and the movable portion 22, and the distance between the fixed portion 21 and the movable portion 22 can be adjusted; there are a plurality of ring gauges 30, and the diameters of the plurality of ring gauges 30 are arranged in increasing order; wherein the nut 61 of the screw 60 is vertically fixed on the working plane based on the nut fixing unit 20, and the plurality of ring gauges 30 are vertically dropped in sequence from directly above the screw 60, and the ring gauge size tightly fitted with the screw rod of the screw 60 is the screw rod outer diameter of the screw 60.

[0034] Specifically, a working plane is provided on the measuring table 10, which is not only used to install the nut fixing unit 20, but also can be adapted to the end face of the nut 61 in the screw 60, so that the screw 60 can be vertically arranged on the working plane through the cooperation of the nut 61 and the working plane.

[0035] The nut fixing unit 20 is arranged on the working plane, and the adjusting part 23 of the nut fixing unit 20 can adjust the movable part 22 and then adjust the relative distance between the fixed part 21 and the movable part 22. In this way, when the nut 61 of the screw 60 is located between the fixed part 21 and the movable part 22, the movable part 22 can be adjusted by the adjusting part 23 to fix the nut 61 between the fixed part 21 and the movable part 22, that is, the screw 60 is vertically fixed on the working plane for subsequent measurement.

[0036] Then, the ring gauge 30 with the size is freely dropped vertically from a height, and the size of the ring gauge 30 that can be just fitted on the screw 60 is the outer diameter size of the screw 60 .

[0037] The present invention provides a measuring platform 10 with a working plane and a nut fixing unit 20 arranged on the measuring platform 10, and the nut fixing unit 20 includes a fixed part 21, a movable part 22 and an adjustment part that can adjust the movable part 22 to achieve adjustment of the distance between the fixed part 21 and the movable part 22. In this way, the working platform can be used to realize the vertical arrangement of the screw 60, and the nut 61 fixing device can be used to realize the fixation of the screw 60, thereby facilitating the subsequent measurement of the outer diameter of the screw 60 by the ring gauge 30, so as to quickly judge whether the combination of the screw 60 and the opponent is reasonable.

[0038] In a specific embodiment of the present invention, a first positioning portion is provided on the side of the fixed portion 21, and a second positioning portion is provided on the side of the movable portion 22, and the first positioning portion and the second positioning portion are arranged opposite to each other to clamp and fix the nut 61. By arranging the first positioning portion and the second positioning portion on the movable portion 22 and the fixed portion 21 for the nut 61, the adaptability with the nut 61 can be improved, thereby improving the fixing strength of the screw 60.

[0039] In a specific embodiment of the present invention, the first positioning portion and the second positioning portion are formed as arc-shaped surfaces, and the two arc-shaped surfaces are coaxially arranged. Specifically, the arc-shaped surface in this embodiment is mainly for the cylindrical nut 61. By setting the first positioning portion and the second positioning portion as arc-shaped surfaces, the contact area between the fixed portion 21, the movable portion 22 and the nut 61 can be increased, thereby improving the fixing strength of the screw 60.

[0040] Of course, in other embodiments, the first positioning portion and the second top portion may also be semi-conical surfaces corresponding to the conical nut 61 .

[0041] In a specific embodiment of the present invention, the sum of the central angles of the arcuate surfaces of the first positioning portion and the second positioning portion is less than 300°, so that the fixing range can be increased, thereby adapting to nuts 61 and screws 60 of a larger size range.

[0042] In a specific embodiment of the present invention, the fixed part 21 includes a first fixed block, a second fixed block and two guide rods, which are arranged in parallel between the first fixed block and the second fixed block; the movable part 22 is slidably mounted on the guide rods; the adjusting part 23 is a screw with a knob at the end, which is inserted into the first fixed block and forms a screw slider structure with the movable part 22.

[0043] Specifically, the first positioning block and the second positioning block are strip blocks, and the two strip blocks are arranged in parallel. The guide rod is inserted between the first positioning block and the second positioning block, and the two guide rods are arranged in parallel. The movable block is arranged on the guide rod and can slide on the guide rod. The adjustment part 23 is a screw rod with an end knob, wherein the screw rod is inserted into the first positioning block and forms a screw slider structure with the movable block, so that the movable block can be driven to move axially along the screw rod by turning the knob, thereby realizing the adjustment of the distance between the movable block and the second positioning block.

[0044] In a specific embodiment of the present invention, it also includes a mounting platform 40, two brackets 41 mounted on the mounting platform 40, and a driving rod 42 horizontally mounted between the two brackets 41. The measuring platform 10 is fixedly connected to the driving rod 42 and can rotate under the drive of the driving rod 42.

[0045] In this embodiment, by providing a mounting platform 40, a bracket 41 and a driving rod 42, and by fixing the measuring rod to the driving rod 42, the measuring platform 10 can rotate around the driving rod 42, thereby driving the screw 60 fixed on the measuring platform to rotate, and in conjunction with a three-dimensional measuring instrument, the thread length of the screw 60, the thickness of the nut 61 and the length of the tail of the screw 60 can be measured. Through the above structure, in conjunction with a three-dimensional measuring instrument, various parameters of a particularly small-sized screw 60 can be measured.

[0046] Among them, because the sum of the central angles of the arc surfaces of the first positioning portion and the second positioning portion is less than 300°, there is a partially exposed area on the periphery of the nut 61, which facilitates the measurement of the thickness and thread length of the nut 61 by a three-dimensional measuring instrument.

[0047] In a specific embodiment of the present invention, a gear 43 is sleeved on the end of the driving rod 42; a driving part 50 is also slidably mounted on the mounting platform 40, and the upper surface of the driving part 50 is a rack 51, which meshes with the gear 43. The driving part 50 is suitable for rotating the driving gear 43, driving the rod 42 and the measuring platform 10 by sliding.

[0048] Specifically, the driving part 50 cooperates with the end gear 43 of the driving rod 42 through the rack 51. When the driving part 50 is slid, the rack 51 of the driving part 50 can drive the gear 43 to rotate, thereby driving the driving rod 42 and the measuring rod to rotate, thereby driving the screw 60 to rotate, thereby facilitating the three-dimensional measuring instrument to collect data and realize measurement.

[0049] In a specific embodiment of the present invention, the cross section of the driving part 50 is T-shaped; a strip-shaped limiting part 45 is also provided on the mounting platform 40, and the limiting part 45 is provided with a limiting groove adapted to the cross section of the driving part 50, and the driving part 50 is slidably installed in the limiting groove.

[0050] By providing the limiting portion 45 with the limiting groove, the driving portion 50 can be limited so that it can only reciprocate on a preset straight line. At the same time, the driving portion 50 can also be limited in the height direction to avoid affecting the gear 43.

[0051] In a specific embodiment of the present invention, a slide groove 44 is provided on the mounting platform 40, and a slider is provided on the driving unit 50, and the slider is arranged in the slide groove 44. This can prevent the driving unit 50 from being separated from the mounting platform 40, thereby ensuring the stability of the structure.

[0052] In a specific embodiment of the present invention, the angle between the maximum rotation angle of the measuring platform 10 and the vertical direction is less than 90°. This can limit the rotation angle of the screw 60, thereby further reducing the height of the measuring platform 10 and further reducing the material cost of the overall rapid measuring device 100.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for quickly measuring screw size, characterized in that: include: A measuring platform, wherein a working plane is provided on the measuring platform; A nut fixing unit, comprising a fixing part, a movable part and an adjusting part, wherein the fixing part is fixedly mounted on the working plane, the movable part is arranged opposite to the fixing part, and the adjusting part is respectively connected to the fixing part and the movable part and can adjust the distance between the fixing part and the movable part; Ring gauges, wherein the ring gauges are multiple and the diameters of the multiple ring gauges are arranged in increasing order; The nut of the screw is vertically fixed to the working plane based on the nut fixing unit, and a plurality of ring gauges are vertically dropped in sequence from directly above the screw. The size of the ring gauge that is tightly fitted with the screw rod of the screw is the outer diameter of the screw rod of the screw.

2. The screw size rapid measuring device according to claim 1, characterized in that: A first positioning portion is disposed on a side surface of the fixed portion, and a second positioning portion is disposed on a side surface of the movable portion. The first positioning portion and the second positioning portion are arranged opposite to each other to clamp and fix the nut.

3. The screw size rapid measuring device according to claim 2, characterized in that: The first positioning portion and the second positioning portion are formed as arc-shaped surfaces, and the two arc-shaped surfaces are coaxially arranged.

4. The screw size rapid measuring device according to claim 3, characterized in that: The sum of the central angles of the arcuate surfaces of the first positioning portion and the second positioning portion is less than 300°.

5. The screw size rapid measuring device according to claim 2, characterized in that: The fixed part includes a first fixed block, a second fixed block and two guide rods, and the guide rods are parallelly mounted between the first fixed block and the second fixed block; the movable part is slidably sleeved on the guide rods; the adjusting part is a screw with a knob at the end, and the knob is inserted into the first fixed block and forms a screw slider structure with the movable part.

6. The screw size rapid measuring device according to claim 1, characterized in that: It also includes a mounting platform, two brackets mounted on the mounting platform, and a driving rod horizontally erected between the two brackets. The measuring platform is fixedly connected to the driving rod and can rotate under the drive of the driving rod.

7. The screw size rapid measuring device according to claim 6, characterized in that: The end of the driving rod is sleeved with a gear; a driving part is also slidably installed on the mounting platform, the upper surface of the driving part is a rack, the rack is meshed with the gear, and the driving part is suitable for driving the gear, the driving rod and the measuring platform to rotate by sliding.

8. The screw size rapid measuring device according to claim 7, characterized in that: The cross section of the driving part is T-shaped; the mounting platform is also provided with a strip-shaped limiting part, the limiting part is provided with a limiting groove adapted to the cross section of the driving part, and the driving part is slidably installed in the limiting groove.

9. The screw size rapid measuring device according to claim 8, characterized in that: The mounting platform is provided with a slide groove, the driving part is provided with a slider, and the slider is arranged in the slide groove.

10. The screw size rapid measuring device according to claim 6, characterized in that: The angle between the maximum rotation angle of the measuring platform and the vertical direction is less than 90°.

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