Engine main shaft positioning detection tool

Abstract

The utility model discloses an engine main shaft positioning detection tool, which relates to the field of engine main shaft positioning detection and comprises a detection table and a main shaft positioning frame arranged on the detection table and used for fixing a main shaft. A plurality of arc-shaped grooves are formed in the upper end and the lower end of the arc-shaped detection plate in a penetrating mode, sliding blocks are movably arranged on the inner sides of the arc-shaped grooves, movable rods are movably arranged on the inner sides of the sliding blocks, dial indicators used for detecting the main shaft are fixedly arranged at the ends of the movable rods, and the display faces of the dial indicators all face one end. According to the utility model, through the arrangement of the arc-shaped detection plate, the movable rod slides in the arc-shaped groove through the sliding block, so that the plurality of dial indicators are unfolded in a fan shape, an operator can conveniently observe the plurality of dial indicators, and a plurality of step shafts can be detected at the same time, and detection values can be conveniently observed.

Description

Technical Field

[0001] This utility model relates to the field of engine spindle positioning and testing, and in particular to an engine spindle positioning and testing tool. Background Technology

[0002] The engine spindle is a key component of the engine, responsible for receiving power from the engine and transmitting it to other parts. The spindle is usually made of high-strength, high-wear-resistant materials to ensure that it can withstand high loads and long-term operation. In addition, the design of the spindle also takes into account heat dissipation and wear resistance to improve its service life and performance. Engine spindles are widely used in various vehicles and mechanical equipment, such as automobiles, motorcycles, excavators, etc. At the same time, according to specific needs, the spindle can also be customized as a non-standard part to meet the special requirements of different equipment.

[0003] After the spindle is manufactured, a series of tests are required, such as crankshaft crack inspection, radial runout detection, crankshaft diameter measurement, and axial clearance measurement. When detecting the radial runout of the spindle, it is generally measured using a magnetic dial indicator base and dial indicator contacts. The swing amplitude of the dial indicator needle reflects the degree of bending. Generally, the magnetic dial indicator base is fixed first, and then the dial indicator contacts are fixed. Since the spindle is generally set as a stepped shaft, each step needs to be tested for radial runout. Generally, it is tested one step at a time, or multiple magnetic dial indicator bases and dial indicator contacts are used to test simultaneously. However, this test method requires fixing multiple magnetic dial indicator bases, which is time-consuming and not convenient for observing multiple dial indicator contacts at the same time.

[0004] Therefore, it is necessary to propose an engine spindle positioning and detection tool to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an engine spindle positioning and testing tool to solve the problem that the radial runout detection of engine spindles is cumbersome and inconvenient to observe.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an engine spindle positioning and testing tool, comprising a testing platform and a spindle positioning frame disposed on the testing platform for fixing the spindle, wherein an arc-shaped testing plate is rotatably provided on one side of the upper end of the testing platform, and multiple arc-shaped grooves are provided through the upper and lower ends of the arc-shaped testing plate, a slider is movably provided inside the arc-shaped groove, and a movable rod is movably provided inside the slider;

[0007] The end of the movable rod is fixedly provided with a dial indicator for detecting the spindle, and the display surfaces of the multiple dial indicators all face one end;

[0008] Each slider is fixedly provided with a limiting strip at its corner, and one side of the limiting strip abuts against the outer side of the arc-shaped detection plate.

[0009] Preferably, a closed plate is fixedly provided at one end of the arc-shaped detection plate, and an open plate is fixedly provided at the other end of the arc-shaped detection plate, with one end of the closed plate abutting against the surface of the detection table;

[0010] The included angle between the closing plate and the opening plate is 130°.

[0011] Preferably, the slider has an engagement groove on its inner side, a cam is rotatably provided on the inner side of the engagement groove, a rubber ring is sleeved on the outer side of the cam, and the outer side of the cam abuts against the inner wall of the arc-shaped groove;

[0012] The movable lever moves through the cam.

[0013] Preferably, a rectangular groove is provided on the inner side of the cam, a locking block is movably provided on the inner side of the rectangular groove, a spring is fixedly provided at the end of the locking block, and the end of the spring is fixedly connected to the inner wall of the rectangular groove;

[0014] The movable rod has multiple slots on its outer side.

[0015] Preferably, the end of the card block is tapered, the cross-section of the card slot is triangular, and the card block abuts against the inner side of the corresponding card slot.

[0016] Preferably, the upper end of the cam has limit grooves on both sides, and two rotating bars are fixedly provided on the outer side of the movable rod, with the rotating bars located inside the corresponding limit grooves.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. By setting up the arc-shaped detection plate, the movable rod slides in the arc-shaped groove through the slider, so that multiple dial indicators are unfolded in a fan shape, which makes it easy for the operator to observe multiple dial indicators. It can simultaneously detect multiple step shafts and also makes it easy to observe the detection values.

[0019] 2. By setting the movable rod, multiple dial indicators can be perfectly fitted to the outer diameter surface of the stepped spindle when testing it. Furthermore, through the cooperation of the cam and the extension rod, the position of the dial indicators can be quickly adjusted, enabling the testing of spindles of various diameters. It is highly practical. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the engine spindle positioning and testing tool of this utility model.

[0021] Figure 2 This is a second-view structural diagram of the engine spindle positioning and testing tool of this utility model.

[0022] Figure 3 This is a schematic diagram of the slider structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the cam of this utility model.

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the slider of this utility model.

[0025] Figure 6 This is a schematic diagram of the card block structure of this utility model.

[0026] In the diagram: 1. Inspection table; 2. Spindle positioning frame; 3. Arc-shaped inspection plate; 4. Dial indicator; 5. Closing plate; 6. Opening plate; 7. Arc-shaped groove; 8. Slider; 9. Limiting bar; 10. Engaging groove; 11. Cam; 12. Movable rod; 13. Rectangular groove; 14. Spring; 15. Locking block; 16. Locking slot; 17. Limiting groove; 18. Rotating bar. Detailed Implementation

[0027] This utility model provides, for example Figure 1 - Figure 6 The tool shown includes a test bench 1 and a spindle positioning frame 2 mounted on the test bench 1 for fixing the spindle. The spindle positioning frame 2 is used to fix the spindle. A motor drives the spindle to rotate on the spindle positioning frame 2, which facilitates the radial runout detection of the spindle. The motor is not shown in the figure. The motor and the spindle positioning frame 2 are existing technologies and will not be described in detail here. An arc-shaped test plate 3 is rotatably mounted on one side of the upper end of the test bench 1. A closed plate 5 is fixed to one end of the arc-shaped test plate 3, and an open plate 6 is fixed to the other end of the arc-shaped test plate 3. One end of the closed plate 5 abuts against the surface of the test bench 1, so that the closed plate 5 is in use. The included angle between the closed plate 5 and the open plate 6 is set at 130°. When the arc-shaped test plate 3 is opened, the open plate 6 contacts the arc-shaped test plate 3.

[0028] Multiple arc-shaped grooves 7 are provided through both the upper and lower ends of the arc-shaped detection plate 3. A slider 8 is movably mounted inside the arc-shaped groove 7. A movable rod 12 is movably mounted inside the slider 8. A dial indicator 4 for detecting the spindle is fixed at the end of the movable rod 12. The contact of the dial indicator 4 abuts against the outer surface of the spindle to perform radial runout detection. The display surfaces of the multiple dial indicators 4 all face one end, making it easy for the operator to observe the dial indicators 4. Limiting strips 9 are fixed at the corners of the slider 8. One side of the limiting strip 9 abuts against the outer side of the arc-shaped detection plate 3.

[0029] The operator controls the movable lever 12, which slides in the arc groove 7 via the slider 8, causing multiple dial gauges 4 to unfold in a fan shape. This makes it easier for the operator to observe multiple dial gauges 4, allowing for simultaneous detection of multiple step shafts and easy observation of the test values.

[0030] The slider 8 has a locking groove 10 on its inner side, and a cam 11 is rotatably provided on the inner side of the locking groove 10. A rubber ring is fitted on the outer side of the cam 11, and the outer side of the cam 11 abuts against the inner wall of the arc groove 7. The movable rod 12 moves through the cam 11. After the position of the dial indicator 4 is set, the cam 11 is rotated so that the outer side of the cam 11 abuts against the inner wall of the arc groove 7 to fix the position of the slider 8.

[0031] When the extension distance of the movable rod 12 needs to be controlled, a rectangular groove 13 is provided on the inner side of the cam 11, and a locking block 15 is movably provided on the inner side of the rectangular groove 13. A spring 14 is fixedly provided at the end of the locking block 15, and the end of the spring 14 is fixedly connected to the inner wall of the rectangular groove 13. Multiple locking slots 16 are provided on the outer side of the movable rod 12. The end of the locking block 15 is tapered, and the cross-section of the locking slot 16 is triangular. The locking block 15 abuts against the inner side of the corresponding locking slot 16.

[0032] When the movable rod 12 needs to continue moving toward the main shaft, rotate the movable rod 12 to disengage the slot 16 and the block 15, thereby releasing the limit of the block 15 and the slot 16, and then press down the movable rod 12. When it is necessary to lift the movable rod 12, simply lift it up.

[0033] Both sides of the upper end of the cam 11 are provided with limiting grooves 17. Two rotating bars 18 are fixed on the outer side of the movable rod 12. The rotating bars 18 are located inside the corresponding limiting grooves 17. When the cam 11 is rotated, the movable rod 12 is rotated to drive the cam 11 to rotate. The movable rod 12 is engaged in the limiting groove 17 through the rotating bars 18, which can then drive the cam 11 to rotate, so that the cam 11 is engaged in the arc-shaped inner side, and then the length of the extended movable rod 12 can be adjusted.

Claims

1. An engine spindle positioning and testing tool, comprising a testing table (1) and a spindle positioning frame (2) disposed on the testing table (1) for fixing the spindle, characterized in that: The upper side of the testing platform (1) is provided with an arc-shaped testing plate (3). Multiple arc-shaped grooves (7) are provided through both the upper and lower ends of the arc-shaped testing plate (3). A slider (8) is movably provided inside the arc-shaped groove (7). A movable rod (12) is movably provided inside the slider (8). The end of the movable rod (12) is fixedly provided with a dial indicator (4) for detecting the spindle, and the display surfaces of the multiple dial indicators (4) all face one end; Limiting strips (9) are fixedly provided at the corners of the slider (8), and one side of the limiting strip (9) abuts against the outside of the arc-shaped detection plate (3).

2. The engine spindle positioning and testing tool according to claim 1, characterized in that: One end of the arc-shaped detection plate (3) is fixedly provided with a closed plate (5), and the other end of the arc-shaped detection plate (3) is fixedly provided with an open plate (6). One end of the closed plate (5) abuts against the surface of the detection table (1). The included angle between the closing plate (5) and the opening plate (6) is 130°.

3. The engine spindle positioning and testing tool according to claim 1, characterized in that: The slider (8) has a locking groove (10) on its inner side, and a cam (11) is rotatably provided on the inner side of the locking groove (10). A rubber ring is sleeved on the outer side of the cam (11), and the outer side of the cam (11) abuts against the inner wall of the arc groove (7). The movable rod (12) moves through the cam (11).

4. The engine spindle positioning and testing tool according to claim 3, characterized in that: The cam (11) has a rectangular groove (13) on its inner side, and a locking block (15) is movably provided on the inner side of the rectangular groove (13). A spring (14) is fixedly provided at the end of the locking block (15), and the end of the spring (14) is fixedly connected to the inner wall of the rectangular groove (13). Multiple slots (16) are provided on the outer side of the movable rod (12).

5. The engine spindle positioning and testing tool according to claim 4, characterized in that: The end of the card block (15) is tapered, the cross-section of the card slot (16) is triangular, and the card block (15) abuts against the inner side of the corresponding card slot (16).

6. The engine spindle positioning and testing tool according to claim 3, characterized in that: The upper end of the cam (11) has limit grooves (17) on both sides. The movable rod (12) has two rotating bars (18) fixed on the outside. The rotating bars (18) are located inside the corresponding limit grooves (17).

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