Crankshaft crank inclined plane de-weighting hole depth testing fixture
By using a positioning plate and a gauge in combination, the problem of efficiently and cost-effectively detecting the depth of the de-weighting hole on the crankshaft crank face was solved, achieving a simple and accurate measurement result.
Patent Information
- Application Number
- CN202520147623.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing technologies are insufficient for efficiently and cost-effectively detecting the depth of the de-weighting hole on the crankshaft and crank bevel. Conventional testing equipment is expensive and complex to operate, resulting in high testing difficulty and low accuracy.
A depth gauge for the de-weighting hole on the inclined surface of a crankshaft and crank is designed, including a positioning plate, a gauge body, and a measuring rod. The positioning plate is installed with a clearance fit between itself and the outer circle of the crankshaft and crank. The measuring rod passes through the gauge body and is inserted into the de-weighting hole. The gauge body is used as a positioning reference for the inspection.
It achieves efficient and low-cost detection of deduplication hole depth, with a simple structure and convenient operation. It can simultaneously measure whether deduplication holes of the same or different depths are qualified, thus improving measurement accuracy and stability.
Smart Images
Figure CN223727126U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of crankshaft production detection equipment, especially to a crankshaft crank bevel hole depth gauge. BACKGROUND
[0002] The crankshaft is the core component of high-speed rotation in the engine, and because the crankshaft is not a uniform component, great vibration will be generated when rotating at high speed, so the unbalance of the crankshaft is an important factor affecting the quality of the crankshaft. In the processing of the crankshaft, the weight-reducing hole is a means to reduce the weight of the crankshaft itself to realize lightweight under the premise of ensuring the mechanical strength of the crankshaft. If the depth of the weight-reducing hole is unqualified, the weight-reducing effect cannot be achieved, which will directly affect the mechanical strength of the crankshaft. However, the bevel of part of the crankshaft is in the blank state, and the conventional depth gauge cannot be used in detection, and if a high-precision three-coordinate detector is used, not only a long detection time is needed, but also the detection equipment is expensive, and the above factors lead to great difficulty in detecting the depth of the weight-reducing hole of the crankshaft bevel, inaccurate measurement and high skill requirement for the operator. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a crankshaft crank bevel hole depth gauge to solve the above problems.
[0004] The technical solution for solving the above technical problem is as follows: a crankshaft crank bevel hole depth gauge, comprising: a positioning plate, a detection body, a positioning locking piece and a measuring rod, the positioning plate is installed in clearance fit with the outer circle of the crankshaft crank, the detection body is installed on the positioning plate through the positioning locking piece, and the measuring rod passes through the detection body and is detachably adapted to be inserted into the weight-reducing hole on the crankshaft crank bevel.
[0005] The utility model has the advantages that the positioning plate is installed in clearance fit with the outer circle of the crankshaft crank, which is beneficial to adapting and installing the positioning plate and the detection body on the outer circle of the crankshaft crank, so that the measuring rod can detect the hole depth of the weight-reducing hole by using the detection body as a positioning reference; the utility model can measure whether the depth of the weight-reducing hole on the blank crankshaft bevel is qualified, and by replacing the measuring rods of different sizes, the depth of the weight-reducing hole on both sides of the crankshaft crank bevel with the same or different depths can be measured at the same time, and the utility model has the advantages of high measurement efficiency, convenient use, simple structure, low manufacturing cost and good measurement effect.
[0006] On the basis of the above technical solution, the utility model can also be improved as follows.
[0007] Further, the detection component comprises a detection component handle, a detection component top plate and a detection component side plate; the detection component side plate is obliquely arranged at the side of the detection component top plate; the detection component handle is arranged at the top end of the detection component top plate; and the detection component top plate is installed on the positioning plate through the positioning locking element.
[0008] The beneficial effect of the further scheme is that the detection component side plate can be used as a detection reference to detect whether the weight removal hole on both sides of the crankshaft crank is qualified.
[0009] Further, the detection component side plate is provided with a reference hole, which is a through hole coaxially arranged with the weight removal hole.
[0010] The beneficial effect of the further scheme is that the reference hole is coaxially arranged with the weight removal hole, which is beneficial for the insertion of the weight removal hole after the insertion of the reference hole.
[0011] Further, the quantity rod comprises a quantity rod main body and a quantity rod handle; the quantity rod main body is a rod-shaped structure coaxially arranged with the quantity rod handle; the quantity rod main body passes through the reference hole and is detachably inserted into the weight removal hole.
[0012] The beneficial effect of the further scheme is that the quantity rod handle is beneficial for the insertion of the quantity rod main body into the reference hole and the weight removal hole, so as to determine whether the hole depth of the weight removal hole is qualified based on the detection component side plate as a reference.
[0013] Further, the quantity rod main body is provided with a quantity rod through end detection groove and a quantity rod stop end detection groove on the side wall of the end close to the quantity rod handle; the quantity rod stop end detection groove is arranged above the quantity rod through end detection groove.
[0014] The beneficial effect of the further scheme is that the position relationship between the detection component side plate and the quantity rod through end detection groove and the quantity rod stop end detection groove is beneficial for determining whether the hole depth of the weight removal hole is qualified.
[0015] Further, the side of the detection component side plate away from the crankshaft crank is a reference surface; when the hole depth of the weight removal hole is qualified, the reference surface is arranged between the bottom surface of the quantity rod stop end detection groove and the bottom surface of the quantity rod through end detection groove.
[0016] The beneficial effect of the further scheme is that the reference surface is used as a detection reference; when the quantity rod main body is inserted into the weight removal hole and the reference surface is arranged between the bottom surface of the quantity rod stop end detection groove and the bottom surface of the quantity rod through end detection groove, it indicates that the hole depth of the weight removal hole is qualified.
[0017] Further, the quantity rod handle is a rod-shaped structure provided with knurling on the side wall.
[0018] The beneficial effect of the further scheme is that the friction force when the measuring rod handle is held is improved, and the operator can conveniently insert or pull out the measuring rod from the reference hole and the weight-removing hole.
[0019] Further, the positioning locking member comprises a plurality of positioning pins and a plurality of fixing screws, the positioning pins are adapted to be inserted in the detection concrete top plate and the positioning plate, and the fixing screws pass through the detection concrete top plate and are threadedly connected with the positioning plate.
[0020] The beneficial effect of the further scheme is that the positioning pins and the fixing screws are beneficial to fix the detection concrete and the positioning plate together, and improve the stability during detection. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The overall structure sectional view is provided for the embodiment of the utility model;
[0022] Figure 2 The structure schematic view of the measuring rod is provided for the embodiment of the utility model;
[0023] Figure 3 The structure schematic view of the positioning plate is provided for the embodiment of the utility model.
[0024] In the drawings, the component list represented by each sign is as follows:
[0025] 1, positioning plate; 2, detection concrete; 3, positioning locking member; 4, measuring rod; 5, crankshaft crank; 21, detection concrete handle; 22, detection concrete top plate; 23, detection concrete side plate; 31, positioning pin; 32, fixing screw; 41, measuring rod main body; 42, measuring rod handle; 43, measuring rod through-end detection groove; 44, measuring rod dead-end detection groove; 51, weight-removing hole; 231, reference hole; 232, reference surface. DETAILED DESCRIPTION
[0026] The principle and features of the utility model are described below, and the examples are only used for explaining the utility model, and are not used for limiting the scope of the utility model.
[0027] As shown in the drawings, Figures 1 to 3 A crankshaft crank bevel weight-removing hole depth detection tool, comprising: a positioning plate 1, a detection concrete 2, a positioning locking member 3 and a measuring rod 4, the positioning plate 1 is installed in clearance fit with the outer circle of a crankshaft crank 5, the detection concrete 2 is installed on the positioning plate 1 through the positioning locking member 3, and the measuring rod 4 passes through the detection concrete 2 and is detachably adapted to be inserted in the weight-removing hole 51 on the bevel of the crankshaft crank 5.
[0028] The utility model discloses beneficial effect is: the positioning plate is installed with the outer circle gap cooperation of crankshaft crank, is favorable with positioning plate and the detection concrete installation on the outer circle of crankshaft crank, thereby convenient for the utilization of detection concrete as the positioning reference to the hole depth of the hole of weight removal of detection, the utility model discloses can measure whether the hole depth of weight removal on crankshaft blank state crank inclined plane is qualified, and through the replacement of the different size of the measuring rod, can simultaneously measure whether the hole depth of weight removal on both sides of crank inclined plane of having same or different depth is qualified, has the advantages such as high measurement efficiency, convenient to use, simple structure, low manufacturing cost, good measurement effect.
[0029] Preferably, as shown in the figure, Figure 1 The detection concrete 2 comprises a detection concrete handle 21, a detection concrete top plate 22 and a detection concrete side plate 23; the detection concrete side plate 23 is obliquely arranged at the side of the detection concrete top plate 22; the detection concrete handle 21 is arranged at the top end of the detection concrete top plate 22; and the detection concrete top plate 22 is installed on the positioning plate 1 through the positioning locking piece 3.
[0030] The detection concrete side plate is favorable for being used as the detection reference for detecting whether the hole of weight removal on both sides of the crank inclined plane is qualified.
[0031] Preferably, as shown in the figure, Figure 1 The detection concrete side plate 23 is provided with a reference hole 231, and the reference hole 231 is a through hole coaxially arranged with the hole of weight removal 51.
[0032] The reference hole is coaxially arranged with the hole of weight removal, which is favorable for the measuring rod to be inserted into the hole of weight removal after passing through the reference hole.
[0033] Preferably, as shown in the figure, Figure 1 And Figure 2 The measuring rod 4 comprises a measuring rod main body 41 and a measuring rod handle 42; the measuring rod main body 41 is a rod-shaped structure coaxially arranged with the measuring rod handle 42; the measuring rod main body 41 passes through the reference hole 231 and is detachably and adaptively inserted into the hole of weight removal 51.
[0034] The measuring rod handle is favorable for driving the measuring rod main body to be inserted into the reference hole and the hole of weight removal, so as to judge whether the hole depth of the hole of weight removal is qualified or not with the detection concrete side plate as the reference.
[0035] Preferably, as shown in the figure, Figure 1 And Figure 2 The end wall of the measuring rod main body 41 close to the measuring rod handle 42 is provided with a measuring rod through-end detection groove 43 and a measuring rod stop-end detection groove 44; and the measuring rod stop-end detection groove 44 is arranged above the measuring rod through-end detection groove 43.
[0036] The beneficial effect of the above preferred scheme is that the position relationship between the detection side plate and the position relationship between the through-end detection groove and the stop-end detection groove of the measuring rod is beneficial to judge whether the hole depth of the weight removal hole is qualified.
[0037] Preferably, as shown in Figure 1 and Figure 2 The reference surface 232 is arranged between the bottom surface of the stop-end detection groove 44 and the bottom surface of the through-end detection groove 43 when the hole depth of the weight removal hole 51 is qualified.
[0038] It should be noted that in the technical scheme of the utility model, the distance between the bottom surface of the through-end detection groove 43 and the bottom surface of the weight removal hole 51 is the theoretical lower difference of the depth of the weight removal hole 51, and the distance between the bottom surface of the stop-end detection groove 44 and the bottom surface of the weight removal hole 51 is the theoretical upper difference of the depth of the weight removal hole 51, and when the distance between the reference surface 232 and the bottom surface of the weight removal hole 51 is between the theoretical lower difference and the theoretical upper difference, it indicates that the hole depth of the weight removal hole 51 is qualified.
[0039] The beneficial effect of the above preferred scheme is that the reference surface is used as a detection reference, and when the main body of the measuring rod is inserted into the weight removal hole and the reference surface is arranged between the bottom surface of the stop-end detection groove and the bottom surface of the through-end detection groove, it indicates that the hole depth of the weight removal hole is qualified.
[0040] Preferably, as shown in Figure 1 and Figure 2 The handle 42 of the measuring rod is a rod-shaped structure with knurling on the side wall.
[0041] The beneficial effect of the above preferred scheme is that it is beneficial to improve the friction when the handle is gripped, and it is convenient for the operator to insert or pull out the reference hole and the weight removal hole.
[0042] Preferably, as shown in Figure 1 Figure 2 Figure 1 The positioning and locking member 3 includes a plurality of positioning pins 31 and a plurality of fixed screws 32, the positioning pins 31 are adapted to be inserted into the detection top plate 22 and the positioning plate 1, and the fixed screws 32 pass through the detection top plate 22 and are threadedly connected with the positioning plate 1.
[0043] The beneficial effect of the above preferred scheme is that the positioning pins and the fixed screws are beneficial to fix the detection top plate and the positioning plate together, and improve the stability during the detection process.
[0044] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0045] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0046] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0047] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0048] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included 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, structures, 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.
[0049] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.
Claims
1. A depth gauge for crankshaft crankpin chamfer weight relief hole, characterized in that, The utility model relates to a kind of crankshaft go gauge, including: positioning plate (1), go gauge (2), positioning locking piece (3) and measuring rod (4), the positioning plate (1) is installed with the outer circle clearance cooperation of crankshaft crank (5), the go gauge (2) is installed on the positioning plate (1) by the positioning locking piece (3), the measuring rod (4) passes through the go gauge (2), and it is detachably adapted to be inserted in the hole (51) on the inclined plane of the crankshaft crank (5). The go gauge (2) includes: go gauge handle (21), go gauge top plate (22) and go gauge side plate (23);The go gauge side plate (23) is obliquely arranged at the side of the go gauge top plate (22), and the go gauge handle (21) is arranged at the top end of the go gauge top plate (22), which is installed on the positioning plate (1) by the positioning locking piece (3).
2. The depth gauge for the weight relief hole of the crankshaft crankshaft camber according to claim 1, characterized in that, The go gauge side plate (23) is provided with a reference hole (231), which is a through hole coaxially arranged with the hole (51).
3. The depth gauge for the weight relief hole of the crankshaft crankshaft camber according to claim 2, characterized in that, The measuring rod (4) includes a measuring rod body (41) and a measuring rod handle (42), the measuring rod body (41) is a rod-shaped structure coaxially arranged with the measuring rod handle (42), the measuring rod body (41) passes through the reference hole (231), and is detachably adapted to be inserted in the hole (51).
4. The depth gauge for the weight relief hole of the crankshaft crankshaft according to claim 3, wherein, The side wall of the measuring rod body (41) close to the measuring rod handle (42) is provided with a measuring rod through-end detection groove (43) and a measuring rod stop-end detection groove (44), and the measuring rod stop-end detection groove (44) is arranged above the measuring rod through-end detection groove (43).
5. The depth gauge for the weight relief hole of the crankshaft crankpin according to claim 4, characterized in that, The side of the go gauge side plate (23) away from the crankshaft crank (5) is a reference surface (232), when the hole depth of the hole (51) is qualified, the reference surface (232) is arranged between the bottom surface of the measuring rod stop-end detection groove (44) and the bottom surface of the measuring rod through-end detection groove (43).
6. The depth gauge for the weight relief hole of the crankshaft crankshaft camber according to claim 5, characterized in that, The measuring rod handle (42) is a rod-shaped structure with knurling on the side wall.
7. The depth gauge for the weight relief hole of the crankshaft crankpin according to claim 4, characterized in that, The positioning locking piece (3) includes a plurality of positioning pins (31) and a plurality of fixing screws (32), the positioning pins (31) are adapted to be inserted into the go gauge top plate (22) and the positioning plate (1), and the fixing screws (32) pass through the go gauge top plate (22) and are threadedly connected with the positioning plate (1).
8. The depth gauge for the weight relief hole of the crankshaft crankpin according to claim 2, characterized in that,