Stepped shaft comprehensive measuring device

Abstract

The utility model provides a comprehensive measuring device for a stepped shaft, which comprises at least two horizontal rulers, a supporting and positioning unit is connected between every two adjacent horizontal rulers, the supporting and positioning unit comprises two connecting blocks which are symmetrical left and right, and one ends, far away from each other, of the two connecting blocks are respectively and detachably connected with the end parts of the two horizontal rulers. Two positioning supporting legs which can rotate in the front-back direction so as to be unfolded and folded are connected between the two connecting blocks; the distance L1 between the left side walls and the right side walls of the two connecting blocks is M standard unit lengths L0, so that a complete and standard leveling instrument unit is formed after two adjacent leveling instruments are connected; at least two angle measuring units are connected to each horizontal ruler in a sliding mode in the length direction of the horizontal ruler. The stepped shaft comprehensive measuring device disclosed by the utility model is simultaneously provided with a length detection unit and an angle detection unit, and can realize simultaneous measurement of multiple sections of lengths and multiple conical surface angles after one-time positioning, so that the detection efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stepped shaft size detection, in particular to a kind of stepped shaft comprehensive measuring device. BACKGROUND

[0002] Stepped shaft, as its name implies, is a kind of shaft body composed of different diameter sections. In some stepped shaft structures, the adjacent shaft bodies of different diameters are not directly machined into right angles, but a tapered surface is used as a transition to ensure structural strength, and according to the different application environment, the taper angle of each tapered transition surface is also required. Therefore, when detecting this type of stepped shaft, in addition to measuring the length of multiple different shaft diameter sections, the angle of multiple tapered surfaces also needs to be detected.

[0003] In the prior art, when detecting the stepped shaft, the length of each different diameter section of the shaft body is measured in turn by a ruler, and then the taper angle of each tapered surface of the shaft body is measured by an angle ruler. This detection method requires frequent replacement of measuring tools, and each time it needs to be re-located and positioned, which is time-consuming and laborious, and the detection efficiency is low. UTILITY MODEL CONTENT

[0004] To overcome at least one of the above defects in the prior art, the utility model provides a kind of stepped shaft comprehensive measuring device, which has length detection and angle detection units simultaneously, and can realize the simultaneous measurement of multiple lengths and multiple taper angles after positioning once, effectively improving the detection efficiency.

[0005] The utility model provides a kind of stepped shaft comprehensive measuring device: including at least two levels, and the support positioning unit is connected between each adjacent level, and the support positioning unit includes two left-right symmetrical connecting blocks, the end of two connecting blocks away from each other is respectively detachably connected with the end of two levels, and two positioning legs that can rotate in front-back direction to realize opening and folding are connected between two connecting blocks;The distance L1 between the left and right side walls of two connecting blocks is M standard unit length L0, so that two adjacent levels form complete and standard level unit after being connected;At least two angle measurement units are slidably connected on each level along its length direction.

[0006] Compared with the prior art, the stepped shaft comprehensive measuring device of the utility model has the following advantages:

[0007] The utility model discloses a stepped shaft comprehensive measuring device structure integrates the level for measuring axial length and the angle measuring unit of measuring conical surface angle to one device, and the length of stepped shaft and the conical surface angle of step surface can be measured simultaneously through one measuring device positioning, more specifically, the utility model structure includes at least two levels, and is connected through the support positioning unit between the adjacent two levels, and when measuring, the two positioning legs of support range unit are clamped on the both sides of stepped shaft to position, and the longer level is formed after the connection of multiple level parts through positioning support unit, which can realize the whole length measurement of stepped shaft and measure the multiple length of stepped shaft, and is very convenient, in addition, at least two angle measuring units are slidably connected on each level, which is used for measuring the multiple conical surface angle on stepped shaft simultaneously, thereby effectively improving the measuring efficiency.

[0008] As improved, two connecting blocks are connected with two rotation shafts which are symmetrical in horizontal direction, the upper ends of the two positioning legs are rotatably connected with the two rotation shafts, and a reset spring is further connected between the two positioning legs. In the improved structure, when the two positioning legs are opened and positioned on the both sides of the stepped shaft, the reset spring can provide inward clamping force to ensure stable and reliable positioning.

[0009] Further improved, a connecting frame with a door type structure is arranged between the two connecting blocks, the left side plate and the right side plate of the connecting frame are fixedly connected with one end of the two connecting blocks respectively, the two ends of the two rotation shafts are connected to the two connecting blocks by penetrating the left side plate and the right side plate, and a handle is arranged on the top of the connecting frame. In the improved structure, the left and right side plates are arranged to facilitate the connection of the two levels, and the handle is arranged on the connecting frame to facilitate the carrying and moving of the whole measuring device.

[0010] Further improved, the outer end of each level is formed with a plurality of positioning blocks, and the inner end is formed with a plurality of positioning grooves matched with the positioning blocks; and the ends away from each other of the left side plate and the right side plate are respectively formed with the positioning blocks or the positioning grooves. In the improved structure, the levels and the connecting blocks are inserted and matched through the block and groove structure, which is simple in structure and convenient to disassemble and assemble.

[0011] Further improved, the angle measuring unit comprises a semicircular angle ruler and a pointer assembly, one end of the pointer assembly is rotatably connected at the center of the angle ruler, and the other end radially exceeds the angle ruler for abutting against the step conical surface of the stepped shaft. In the improved structure, the rotation positioning of the pointer assembly ensures more accurate conical surface angle measurement.

[0012] In a further improvement, a T-shaped groove is recessed on the front side wall of the level, and a T-shaped slider is connected to the rear side of the angle ruler's center position for sliding fit into the T-shaped groove. In the above improved structure, the sliding mating surface of the T-shaped structure can ensure both horizontal movement of the angle measuring unit and horizontal positioning, preventing the angle measuring unit from disengaging from the level.

[0013] In a further improvement, the pointer assembly includes a pointer body and a connecting rod. One end of the connecting rod is rotatably connected to the center of the angle gauge, and the other end is detachably inserted into one end of the pointer body. In this improved structure, different specifications of stepped shaft measurements can be achieved by replacing the connecting rod with different lengths, demonstrating strong versatility.

[0014] Other improvements and advantages of this invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0015] Figure 1 This is the front view of the stepped shaft integrated measuring device of this utility model;

[0016] Figure 2 This is a front view of the connection structure between the level and the angle measuring unit in this utility model;

[0017] Figure 3 for Figure 1 Sectional view along line AA in the middle;

[0018] Figure 4 for Figure 2 BB-direction sectional view in the middle;

[0019] Figure 5 This is a front view of the support and positioning unit in this utility model;

[0020] Figure 6 for Figure 2 Enlarged structural diagram at point X in the diagram;

[0021] Figure 7 This is a front view of the working state of the stepped shaft integrated measuring device of this utility model.

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

[0023] 1, level; 2, connecting block; 3, positioning leg; 4, rotating shaft; 5, return spring; 6, connecting frame; 7, left side plate; 8, right side plate; 9, handle; 10, positioning plug; 11, positioning slot; 12, angle ruler; 13, T-shaped sliding groove; 14, T-shaped sliding block; 15, pointer body; 16, connecting rod; 17, plug-in protrusion; 18, stepped shaft; 19, gland. DETAILED DESCRIPTION

[0024] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0027] Referring to Figures 1 to 7 As shown in the figure, the embodiments of the present application disclose a stepped shaft 18 comprehensive measuring device, which comprises at least two levels 1, and a support positioning unit is connected between each adjacent level, the support positioning unit comprises two left and right symmetrical connecting blocks 2, the ends of the two connecting blocks 2 away from each other are respectively detachably connected with the end portions of the two levels 1, and two positioning legs 3 capable of rotating in the front and rear directions to realize opening and folding are connected between the two connecting blocks 2; the distance L1 between the left and right side walls of the two connecting blocks 2 is M standard unit lengths L0, so that the two adjacent levels 1 form a complete and standard level 1 unit after being connected; specifically, the length L1 of the connecting portion between the two adjacent levels 1 is M standard unit lengths L0, and the standard unit length L0 here is the standard unit length L0 of the level 1, so that the length of the level 1 is still a complete length after being connected in the length direction, and the entire length measurement and segmented length measurement of the stepped shaft 18 can be realized.

[0028] In addition, at least two angle measuring units are slidably connected to each horizontal ruler 1 along the length direction of the horizontal ruler 1. In this structure, the horizontal ruler 1 is a conventional length measuring ruler, that is, the length L2 of the horizontal ruler 1 includes N standard unit lengths L0, where L0 is a centimeter unit length, and each centimeter unit length can be further divided into n millimeter unit lengths according to the detection accuracy requirement.

[0029] Referring to the accompanying drawings Figure 7 During measurement, the horizontal ruler 1 is moved to a position parallel to the measurement axis, then the two positioning legs 3 supporting the positioning unit are opened, and the two positioning legs 3 are clamped and positioned on the two sides of the stepped shaft 18, and the multi-section length detection of the stepped shaft 18 is performed by the horizontal ruler 1. In addition, according to the number of conical surfaces, the corresponding angle measuring unit can be moved to perform the angle measurement of the conical surface. Compared with the conventional separate independent measurement by using different measuring tools, the frequency of better measuring tools is obviously reduced, and the detection efficiency is improved.

[0030] In the above structure, referring to the accompanying drawings Figure 2 Two horizontal and front-back symmetrical rotating shafts 4 are connected between the two connecting blocks 2, the upper ends of the two positioning legs 3 are respectively rotationally connected to the two rotating shafts 4, and a reset spring 5 is further connected between the two positioning legs 3. When the two positioning legs 3 are opened and positioned on the two sides of the stepped shaft 18, the reset spring 5 can generate a tightening force to move closer to each other, so that the two positioning legs 3 are more difficult to be clamped and positioned on the two sides of the stepped shaft 18, and the stability of the position positioning is improved.

[0031] More specifically, referring to the accompanying drawings Figure 5 In this embodiment, a door-shaped connecting frame 6 is arranged between the two connecting blocks 2, the left side plate 7 and the right side plate 8 of the connecting frame 6 are respectively fixedly connected to one end of the two connecting blocks 2, and the fixed connection can be riveting or welding. In addition, the two ends of the two rotating shafts 4 pass through the left side plate 7 and the right side plate 8 and are connected to the two connecting blocks 2, so as to ensure the strength of the connecting structure. The top of the connecting frame 6 is provided with a handle 9, which facilitates the movement of the entire measuring device.

[0032] In another aspect, referring to the accompanying drawings Figure 2 , 5 In this embodiment, the outer protruding end of each horizontal ruler 1 is formed with a plurality of positioning plug blocks 10, and the other end is formed with a plurality of positioning plug slots 11 matched with the positioning plug blocks 10. The ends of the left side plate 7 and the right side plate 8 away from each other are respectively formed with the positioning plug blocks 10 or the positioning plug slots 11. In this structure, the horizontal ruler 1 and the left side plate 7 and the right side plate 8 on both sides of the supporting and positioning unit are connected and positioned by plug-in structure, which is simple in structure, convenient to install, and convenient to disassemble and store. In this embodiment, in order to detect stably and improve the accuracy, when the number of horizontal rulers 1 is three or more, the supporting and positioning unit is connected between every two adjacent horizontal rulers 1.

[0033] In other embodiments, when the number of levels is four or more, only one supporting and positioning unit can be provided, and the first and second levels are directly inserted and positioned on both sides of the supporting and positioning unit, and the third and fourth levels are directly connected to the ends away from the first and second levels, without the need for further connection through the supporting and positioning unit.

[0034] In addition, referring to the accompanying drawings Figure 2 The angle measuring unit involved in the above structure comprises a semicircular angle ruler 12 and a pointer assembly, one end of the pointer assembly is rotationally connected to the center of the angle ruler 12, and the other end extends radially beyond the angle ruler 12 for abutting against the stepped cone surface of the stepped shaft 18. During measurement, according to the position of the cone surface on the stepped shaft 18, the corresponding angle measuring unit is moved, and the pointer assembly is abutted as a detection reference, and then the degree reading is performed through the angle ruler 12, which is very convenient.

[0035] In this embodiment, referring to the accompanying drawings Figure 4 A T-shaped sliding groove 13 is formed in the front side wall of the level 1, and the T-shaped sliding groove 13 is preferably located at the middle position of the level 1 and the rear side of the center position of the angle ruler 12 is connected with a T-shaped sliding block 14 for slidingly fitting into the T-shaped sliding groove 13. The sliding fitting surface of the T-shaped structure can not only ensure the horizontal movement of the angle measuring unit, but also realize the positioning in the horizontal direction, avoiding the disengagement of the angle measuring unit from the level 1.

[0036] More specifically, referring to the accompanying drawings Figure 2 、 6 In this embodiment, in order to further increase the application range, the pointer assembly comprises a pointer body 15 and a connecting rod 16, one end of the connecting rod 16 is rotationally connected to the center of the angle ruler 12, and the other end is detachably inserted and fitted with one end of the pointer body 15. Users can replace the connecting rod 16 of different lengths according to the measurement requirements, so that the pointer body 15 can better adapt to stepped shafts 18 of different specifications and shapes, and the application range is improved. Specifically, an insertion protrusion 17 is formed on one end of the pointer body 15, an insertion recess is formed on the end of the connecting rod 16 away from the angle ruler 12, and the insertion protrusion 17 is detachably inserted and positioned in the insertion recess, realizing the quick mounting connection structure of the pointer body 15 and the connecting rod 16.

[0037] In this embodiment, referring to the accompanying drawings Figure 4 The circular position of the angle ruler 12 and the end of the connecting rod 16 away from the pointer body 15 are rotationally sleeved on the cylindrical body of the T-shaped sliding block 14, and are positioned at the outer end by a gland 19; specifically, the lower half of the gland 19 is an open structure to realize the rotation of the angle ruler 12 and the connecting rod 16.

[0038] In the description of the embodiments of the present application, it should be noted that the terms "front", "rear", "left", "right", and the like indicating the direction or positional relationship in the description of the present application are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or member must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] In the description of the present application, the description referring to the terms "the present embodiment", "some embodiments", and the like means that the specific features, mechanisms, materials, or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0040] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for the integrated measurement of a stepped shaft (18), characterized in that: The utility model provides a kind of level gauge, including at least two horizontal scales (1), each adjacent horizontal is connected with support positioning unit, the support positioning unit includes two left-right symmetrical connecting blocks (2), the end of two described connecting blocks (2) is respectively detachably connected with the end of two horizontal scales (1), two described connecting blocks (2) are connected with two positioning legs (3) that can be rotated in front-back direction to realize opening and folding;The distance L1 between the left and right side walls of two described connecting blocks (2) is M standard unit length L0, so that two adjacent horizontal scales (1) are connected to form complete and standard horizontal scale (1) unit;At least two angle measuring units are slidably connected on each described horizontal scale (1) along its length direction.

2. The step shaft (18) integrated measuring device according to claim 1, characterized in that: Two described connecting blocks (2) are connected with two rotation shafts (4) that are front-back symmetrical in horizontal direction, the upper end of two described positioning legs (3) is rotatably connected on two described rotation shafts (4), and reset spring (5) is further connected between two described positioning legs (3).

3. The step shaft (18) integrated measuring device according to claim 2, characterized in that: Two described connecting blocks (2) are provided with door type structure connecting frame (6), the left side plate (7) of the connecting frame (6), right side plate (8) are fixedly connected with one end of two connecting blocks (2) respectively, two ends of two described rotation shafts (4) are connected to two connecting blocks (2) by passing through the left side plate (7), right side plate (8) respectively, and the top of the connecting frame (6) is provided with handle (9).

4. The step shaft (18) integrated measuring device according to claim 3, characterized in that: The outer convex of one end of each described horizontal scale (1) is formed with several positioning insert blocks (10), and the other end is concave and is formed with several positioning insert slots (11) matched with the positioning insert blocks (10).

5. The step shaft (18) integrated measuring device according to any one of claims 1 to 4, characterized in that: The angle measuring unit includes semicircular angle scale (12) and pointer assembly, one end of the pointer assembly is rotatably connected at the center of the angle scale (12), and the other end exceeds the angle scale (12) in radial direction for abutting against the stepped conical surface of stepped shaft (18).

6. The step shaft (18) integrated measuring device according to claim 5, characterized in that: The inner recess of the front side wall of the horizontal scale (1) is provided with T-shaped sliding groove (13), and the rear side of the center position of the angle scale (12) is connected with T-shaped sliding block (14) for slidingly fitting into the T-shaped sliding groove (13).

7. The step shaft (18) integrated measuring device according to claim 6, characterized in that: The pointer assembly includes pointer body (15) and connecting rod (16), one end of the connecting rod (16) is rotatably connected at the center of the angle scale (12), and the other end is detachably inserted and matched with one end of the pointer body (15).

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