Online runout detection platform for crankshaft

Abstract

The utility model provides a crankshaft online runout detection platform, relates to the technical field of crankshaft detection, and solves the technical problem that a conventional crankshaft runout online detection device is inconvenient to detect, operate and record when a meter probe extends into a space below a crankshaft. The device comprises a metering platform arranged at a feed opening and a supporting platform arranged on the metering platform in a sliding mode, the metering platform is provided with a meter measuring mechanism used for detecting the runout of the crankshaft, and the supporting platform is used for fixedly transporting the crankshaft to the meter measuring mechanism. According to the utility model, the z-axis of the quench machining tool in the prior art is transformed into the supporting platform, the supporting platform is directly moved out of the quench machining tool and is close to the meter measuring mechanism to carry out run-out detection on the crankshaft, the transformation is simple, the cost is low, and the problem that the operation record is inconvenient because the meter extends into the quench machining tool for detection during run-out detection can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft detection, in particular to an online crankshaft runout detection platform. Background Art

[0002] The crankshaft is the core part of the engine, with complex shape, poor rigidity, high precision requirements, long process route and great processing difficulty. The crankshaft currently produced is about 1000mm long, with a diameter less than one-tenth of its length, which is a slender shaft. In addition, due to its special shape of "crank", almost every process in the crankshaft processing will affect the circular runout of the main journal axis. In order to control the circular runout of the finished crankshaft, almost every process has circular runout requirements for the crankshaft.

[0003] The size of crankshaft circular runout is affected by various factors, especially the deformation of the crankshaft caused by the release of internal stress after the crankshaft is heat treated, which makes the circular runout error difficult to grasp. The circular runout of the main journal of the crankshaft currently produced after quenching is very unstable and there is no pattern to follow. Looking back at the previous rough machining internal milling process, since there was no 100% inspection of the circular runout of the crankshaft main journal and no comparative data, the circular runout problem has not been effectively solved.

[0004] The crankshaft runout detection after quenching requires the operator to lift the crankshaft up and down before testing it, which increases the labor intensity of the operator and reduces production efficiency.

[0005] Therefore, the online inspection fixture for crankshaft circular runout proposed in the patent with announcement number CN204831058U extends the inspection platform and the meter probe under the crankshaft to support the crankshaft for inspection, and the crankshaft can be inspected without taking it out, saving manpower and reducing labor intensity. However, the temperature of the space where the crankshaft has just been quenched is relatively high. Although it has little effect on the meter inspection, the operator needs to observe the meter to record the meter reading, and some adjustment operations also require the operator to perform on-site operations, which is inconvenient in actual use. Utility Model Content

[0006] The utility model aims to provide a crankshaft online runout detection platform to solve the technical problem that the existing crankshaft online runout detection device requires the measuring probe to be inserted into the space below the crankshaft for detection and operation recording, which is inconvenient.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] A crankshaft online runout detection platform comprises a metering platform arranged at a feeding port and a supporting platform slidably arranged on the metering platform, wherein the metering platform is provided with a metering mechanism for detecting crankshaft runout, and the supporting platform is used for fixing the crankshaft and transporting it to the metering mechanism.

[0009] By adopting the technical solution, when inspecting the crankshaft, the metering platform is placed at the feeding port, and the crankshaft is directly fixed on the supporting platform. The z-axis of the quenching machine in the original process is transformed into the supporting platform, which is slidably connected to the metering platform. After quenching is completed, the supporting platform is directly moved out of the quenching machine, and the crankshaft is tested for runout by approaching the metering mechanism. The modification is simple and low-cost, and the problem of inconvenience in operation and recording by extending the meter into the quenching machine for test can be avoided.

[0010] Preferably, the meter measuring mechanism comprises a mounting frame slidably mounted on one end of the metering platform, and the mounting frame is provided with an adjustment mechanism for connecting the meter.

[0011] By adopting this technical solution, the main shaft or crankshaft for measurement is selected through the sliding mounting frame, and the position of the measuring meter is adjusted through the adjustment mechanism to make it close to the position that needs to be detected, thereby facilitating detection and improving detection accuracy.

[0012] Preferably, the adjustment mechanism includes a mounting block slidably arranged on the mounting frame, a first hinged rod hinged to the mounting block, and a second hinged rod hinged to the first hinged rod, the second hinged rod is connected to the measuring meter at one end away from the first hinged rod, and the sliding direction of the mounting block is set at an angle to the sliding direction of the mounting frame.

[0013] By adopting the technical solution, the mounting block in the adjustment mechanism can slide forward and backward relative to the support platform to adjust the vertical distance between the measuring meter and the crankshaft. The first hinged rod and the second hinged rod, which are hinged in sequence, can adjust the height of the measuring meter by rotating relative to each other to align it with the measuring position. The two hinged rods can be hinged so that the second hinged rod is always horizontal to ensure that the measuring meter is also horizontal after adjustment, thereby preventing the measuring meter from producing measurement errors.

[0014] Preferably, the measuring instrument is provided with a probe for approaching and detecting the crankshaft.

[0015] Preferably, the support platform is provided with a plurality of support frames for supporting and fixing the crankshaft, and the support frames include a plurality of V-shaped tooling groups and connecting frames connecting the V-shaped tooling groups.

[0016] By adopting the technical solution, the V-shaped tooling can stably guide and fix the crankshaft. The crankshaft is inserted through the overlap position and fixed to the V-shaped bottom by the crankshaft's gravity. The crankshaft is placed on multiple groups of support frames. While supporting the crankshaft, it does not affect the rotation of the crankshaft itself. The V-shaped tooling is arranged in multiple groups and multiple groups of crankshafts can be placed at the same time, which is convenient for improving the detection efficiency.

[0017] Preferably, the support platform is provided with a plurality of groups of slide grooves for slidably connecting the support frame.

[0018] Preferably, the slide groove is slidably provided with a slider connected to the support frame.

[0019] Preferably, the meter printing platform is provided with a limit block for fixing and limiting the support platform.

[0020] Preferably, a side of the support platform close to the meter measuring mechanism is configured as a slope.

[0021] By adopting this technical solution, the sliding of the support platform is limited by the limit block to prevent it from hitting and damaging the measuring table. At the same time, the side of the support platform close to the measuring table is set as a slope. When the probe touches the slope, the probe can be knocked away to prevent damage to the probe.

[0022] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0023] 1. The utility model transforms the z-axis of the quenching machine in the original process into a supporting platform, directly moves the supporting platform out of the quenching machine, and approaches the measuring mechanism to detect the crankshaft runout, which is simple to transform and low in cost;

[0024] 2. The utility model can avoid the problem of inconvenience in operation and recording when the measuring table is inserted into the quenching machine tool for testing during runout detection;

[0025] 3. The utility model can effectively adjust the meter probe to be close to the position that needs to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of the crankshaft online runout detection platform provided in Example 1 of the utility model;

[0028] Figure 2 A schematic diagram of the structure of the adjustment mechanism of the crankshaft online runout detection platform provided in Example 1 of the utility model;

[0029] Figure 3 A schematic diagram of the support platform structure of the crankshaft online runout detection platform provided in Example 2 of the utility model;

[0030] Icons: 1. Metering platform; 2. Metering mechanism; 21. Mounting frame; 22. Mounting block; 23. First hinged rod; 24. Second hinged rod; 25. Metering; 26. Probe; 3. Limit block; 4. Support platform; 41. Slide; 5. Support frame; 51. V-shaped tooling; 52. Connecting frame; 6. Slider. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] A crankshaft online runout detection platform includes a metering platform 1 arranged at a feed port and a supporting platform 4 slidably arranged on the metering platform 1. The metering platform 1 is provided with a metering mechanism 2 for detecting crankshaft runout, and the supporting platform 4 is used to fix the crankshaft and transport it to the metering mechanism 2.

[0038] By adopting the technical solution, when inspecting the crankshaft, the metering platform 1 is placed at the discharge port, and the crankshaft is directly fixed on the supporting platform 4. The z-axis of the quenching machine in the original process is transformed into the supporting platform 4, which is slidably connected to the metering platform 1. After quenching is completed, the supporting platform 4 is directly moved out of the quenching machine, and the crankshaft is tested for vibration close to the metering mechanism 2. The modification is simple and low-cost, and the problem of inconvenience in operation and recording by extending the meter 25 into the quenching machine for vibration detection can be avoided.

[0039] In this embodiment, the meter measuring mechanism 2 includes a mounting frame 21 slidably mounted on one end of the metering platform 1 , and the mounting frame 21 is provided with an adjustment mechanism for connecting the meter 25 .

[0040] By adopting the technical solution, the main shaft or crankshaft is selected for measurement through the sliding mounting frame 21, and the position of the measuring gauge 25 is adjusted through the adjustment mechanism to make it close to the position to be detected, so as to facilitate the detection and improve the detection accuracy.

[0041] In this embodiment, the adjustment mechanism includes a mounting block 22 slidably arranged on the mounting frame 21, a first hinged rod 23 hinged to the mounting block 22, and a second hinged rod 24 hinged to the first hinged rod 23, the second hinged rod 24 is connected to the measuring meter 25 at one end away from the first hinged rod 23, and the sliding direction of the mounting block 22 is set at an angle to the sliding direction of the mounting frame 21.

[0042] By adopting the present technical solution, the mounting block 22 in the adjustment mechanism can slide forward and backward relative to the support platform 4 to adjust the vertical distance between the measuring meter 25 and the crankshaft. The first hinged rod 23 and the second hinged rod 24, which are hinged in sequence, can adjust the height of the measuring meter 25 by rotating relative to each other to align it with the measuring position. The second hinged rod 24 can be always horizontal by hingedly connecting the two hinged rods to ensure that the measuring meter 25 is also horizontal after adjustment, thereby preventing the measuring meter 25 from generating measurement errors.

[0043] In this embodiment, the measuring meter 25 is provided with a probe 26 for approaching and detecting the crankshaft.

[0044] In this embodiment, the meter printing platform 1 is provided with a limit block 3 for fixing and limiting the support platform 4 .

[0045] In this embodiment, a surface of the support platform 4 close to the meter measuring mechanism 2 is configured as a slope.

[0046] By adopting this technical solution, the sliding of the support platform 4 is limited by the limit block 3 to prevent it from hitting and damaging the measuring table 25. At the same time, the side of the support platform 4 close to the measuring table 25 is set as a slope. When the probe 26 contacts the slope, the probe 26 can be knocked away to prevent damage to the probe 26.

[0047] Example 2

[0048] In this embodiment, the support platform 4 is provided with two groups of support frames 5 for supporting and fixing the crankshaft, and the support frames 5 include two groups of V-shaped fixtures 51 and a connecting frame 52 connecting the V-shaped fixtures 51 .

[0049] By adopting the present technical solution, the V-shaped tooling 51 can stably guide and fix the crankshaft. The crankshaft is inserted through the overlap position and fixed to the V-shaped bottom by the gravity of the crankshaft. The crankshaft is placed on two groups of support frames 5. While supporting the crankshaft, it does not affect the rotation of the crankshaft itself. The V-shaped tooling 51 is set into two groups, and two groups of crankshafts can be placed at the same time, which is convenient for improving the detection efficiency.

[0050] In this embodiment, the support platform 4 is provided with a plurality of sliding grooves 41 for slidably connecting the support frame 5 .

[0051] In this embodiment, the slide groove 41 is slidably provided with a slider 6 connected to the support frame 5 .

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crankshaft online runout detection platform, characterized in that: The invention comprises a metering platform (1) arranged at a material discharge port and a support platform (4) slidably arranged on the metering platform (1); the metering platform (1) is provided with a metering mechanism (2) for detecting crankshaft vibration; and the support platform (4) is used to fix the crankshaft and transport it to the metering mechanism (2).

2. The crankshaft online runout detection platform according to claim 1 is characterized in that: The meter measuring mechanism (2) comprises a mounting frame (21) slidably mounted on one end of the metering platform (1); the mounting frame (21) is provided with an adjustment mechanism for connecting to a meter (25).

3. The crankshaft online runout detection platform according to claim 2 is characterized in that: The adjustment mechanism comprises a mounting block (22) slidably mounted on the mounting frame (21), a first hinged rod (23) hinged to the mounting block (22), and a second hinged rod (24) hinged to the first hinged rod (23); one end of the second hinged rod (24) away from the first hinged rod (23) is connected to the measuring meter (25); and the sliding direction of the mounting block (22) is arranged at an angle to the sliding direction of the mounting frame (21).

4. The crankshaft online runout detection platform according to claim 2 or 3, characterized in that: The measuring meter (25) is provided with a probe (26) for approaching and detecting the crankshaft.

5. The crankshaft online runout detection platform according to any one of claims 1 to 3, characterized in that: The support platform (4) is provided with a plurality of support frames (5) for supporting and fixing the crankshafts. The support frames (5) include a plurality of groups of V-shaped tooling (51) and a connecting frame (52) connecting the V-shaped tooling (51).

6. The crankshaft online runout detection platform according to claim 5, characterized in that: The support platform (4) is provided with a plurality of groups of slide grooves (41) for slidably connecting to the support frame (5).

7. The crankshaft online runout detection platform according to claim 6, characterized in that: The slide groove (41) is slidably provided with a sliding block (6) connected to the support frame (5).

8. The crankshaft online runout detection platform according to any one of claims 1-3, 6 and 7, characterized in that: The meter printing platform (1) is provided with a limit block (3) for fixing and limiting the support platform (4).

9. The crankshaft online runout detection platform according to any one of claims 1-3, 6 and 7, characterized in that: The support platform (4) is provided with a sloped surface on one side close to the meter measuring mechanism (2).

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