A detection device for the surface quality of an engine crankshaft capable of rotating at any angle

Abstract

The present invention discloses a detection device for the surface quality of an engine crankshaft that can rotate at any angle, comprising a workbench, a fixing plate being vertically provided at one end of the workbench, a motor bracket being provided at the other end, a slide seat being installed on the side of the fixing plate, a telescopic fastener being provided on the slide seat and capable of sliding horizontally, a positioning groove being provided at the end of the telescopic fastener and matching with one end of the crankshaft, a bushing being provided in the positioning groove, a coupling assembly being provided on the motor bracket, a crankshaft stopper being provided at one end of the coupling assembly and connected with the other end of the crankshaft, and a motor being provided on the motor bracket and connected with the coupling assembly. The detection device for the surface quality of an engine crankshaft that can rotate at any angle of the present invention has a reasonable structural design, belongs to the technical field of engine parts detection, solves the defects of manually operating a crane to detect surface defects of the crankshaft back and forth, and has high labor intensity, is easy to operate, safe and reliable, and has high work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of component detection, and more specifically, to a detection device for the surface quality of an engine crankshaft which can rotate at any angle. Background Art

[0002] At present, the surface defects of the engine crankshaft need to be inspected before it is installed on the assembly line. The current crankshaft surface defect inspection mostly uses a crane to lift the crankshaft and perform operations such as raising, lowering, moving left and right to complete the surface defect inspection, which has high labor intensity, poor safety and low production efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. The purpose of the present invention is to provide a detection device for the surface quality of an engine crankshaft which is easy to operate, safe and reliable, has low labor intensity and can be rotated at any angle.

[0004] To achieve the above-mentioned purpose, the present invention provides a device for detecting the surface quality of an engine crankshaft that can be rotated at any angle, comprising a workbench, a fixing plate being vertically provided at one end of the workbench and a motor bracket being provided at the other end, a sliding seat being installed on the side of the fixing plate, a telescopic fastener capable of horizontal sliding being provided on the sliding seat, a positioning groove being provided at the end of the telescopic fastener and matching with one end of the crankshaft, a bushing being provided in the positioning groove, a coupling assembly being provided on the motor bracket, a crankshaft stopper connected to the other end of the crankshaft being provided at one end of the coupling assembly, and a motor connected to the coupling assembly being provided on the motor bracket.

[0005] Furthermore, the crankshaft stopper is a top cone structure, a bearing seat is provided at one end of the motor bracket, the crankshaft stopper is rotatably arranged on the bearing seat, and the two ends of the coupling assembly are respectively connected to the top cone structure and the motor.

[0006] Furthermore, the motor is a servo motor.

[0007] As a further improvement, the slide seat is provided with a stepped hole extending through both ends, the lower end of the stepped hole is provided with a fastener connected to the fixed plate, the large end of the stepped hole is adapted to one end of the telescopic fastener, and one side of the slide seat is provided with a pin that can radially spirally extend into the hole wall of the stepped hole.

[0008] Furthermore, the telescopic fastener is a stepped shaft structure, the small end of the stepped shaft structure is adapted to the large end of the stepped hole, and the small end of the stepped shaft structure is threadedly connected with an adjusting nut; the positioning groove is arranged on the end face of the large end of the stepped shaft structure.

[0009] Furthermore, the fixing plate is provided with a connecting seat connected to the fastener, the connecting seat is provided with a screw hole connected to the fastener, and the end of the fastener is provided with a limiting convex edge adapted to the step surface in the stepped hole.

[0010] Beneficial Effects

[0011] Compared with the prior art, the beneficial effects of the engine crankshaft surface quality detection device that can rotate at any angle of the present invention are as follows: the engine crankshaft surface quality detection device that can rotate at any angle has a reasonable structural design, which solves the problem of manually operating a crane to detect crankshaft surface defects back and forth, which has high labor intensity. A flip device for detecting engine crankshaft surface defects that can rotate at any angle is designed, which is easy to operate, safe and reliable, has low labor intensity, and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural top view of the engine cylinder in-brake and valve clearance angle measuring tool of the present invention.

[0013] In the figure: 1. workbench; 2. fixing plate; 3. motor bracket; 4. slide seat; 5. telescopic fastener; 6. crankshaft; 7. positioning groove; 8. bushing; 9. coupling assembly; 10. motor; 11. stepped hole; 12. fastener; 13. pin; 14. adjusting nut; 15. connecting seat; 16. crankshaft top stopper. DETAILED DESCRIPTION

[0014] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0015] The specific implementation of the present invention is as follows: Figure 1As shown, a detection device for the surface quality of an engine crankshaft that can rotate at any angle includes a workbench 1, a fixing plate 2 is vertically provided at one end of the workbench 1, a motor bracket 3 is provided at the other end, a slide seat 4 is installed on the side of the fixing plate 2, a telescopic fastener 5 that can slide horizontally is provided on the slide seat 4, a positioning groove 7 that matches one end of a crankshaft 6 is provided at the end of the telescopic fastener 5, a bushing 8 is provided in the positioning groove 7, a coupling assembly 9 is provided on the motor bracket 3, a crankshaft stopper 16 connected to the other end of the crankshaft 6 is provided at one end of the coupling assembly 9, a motor 10 connected to the coupling assembly 9 is provided on the motor bracket 3, and the motor 10 transmits torque through the coupling assembly 6. The slide seat 4, the telescopic fastener 5, the coupling assembly 9 and the motor 10 constitute a turning device for rotating the crankshaft 6. The telescopic fastener 5 can be adjusted along the axial direction of the crankshaft 6 under the guide direction of the slide 4, and the distance between the telescopic fastener 5 and the motor bracket 3 can be adjusted to adapt to crankshafts 6 of different lengths. It has good adaptability and is convenient for the crankshaft 6 to be installed between the telescopic fastener 5 and the motor bracket 3. It is easy to install and easy to operate.

[0016] In this embodiment, the crankshaft stopper 16 is a top cone structure, a bearing seat is provided at one end of the motor bracket 3, the crankshaft stopper 16 is rotatably arranged on the bearing seat, and the two ends of the coupling assembly 9 are respectively connected to the top cone structure and the motor 10.

[0017] In this embodiment, the motor 10 is a servo motor, which can control the crankshaft 6 to rotate slowly, so that the staff can observe and detect it carefully.

[0018] In this embodiment, a stepped hole 11 is provided through both ends of the slide 4, a fastener 12 connected to the fixing plate 2 is provided at the lower end of the stepped hole 11, the large end of the stepped hole 11 is adapted to one end of the telescopic fastener 5, and a pin 13 that can radially spirally extend into the hole wall of the stepped hole 11 is provided on one side of the slide 4.

[0019] In this embodiment, the telescopic fastener 5 is a stepped shaft structure, the small end of the stepped shaft structure is adapted to the large end of the stepped hole 11, and the small end of the stepped shaft structure is threadedly connected with an adjusting nut 14; the positioning groove 7 is arranged on the end face of the large end of the stepped shaft structure.

[0020] In this embodiment, a connecting seat 15 connected to the fastener 12 is provided on the fixing plate 2, and a screw hole connected to the fastener 12 is provided on the connecting seat 15. The fastener 12 is a bolt structure, and one end of the fastener 12 is provided with a limiting convex edge adapted to the step surface in the stepped hole 11.

[0021] In this embodiment, a platform is provided on one side outside the workbench 1 to facilitate operation by the staff.

[0022] During specific operation, the crankshaft 6 automatically returns to the original position set by the system through the encoder position of the servo motor 10, preparing for the inspection of crankshaft surface defects; in manual mode, by pressing the "forward" or "reverse" button, the servo motor 10 performs forward or reverse movement, and when the button is released, the motor 10 stops and the brake is locked. The operator checks the crankshaft surface one by one for defects, such as cracks, spots, uneven processing, scratches, bumps and other quality defects.

[0023] In automatic mode, the control system of the flipping device can preset multiple rotation angles A, B, and C. First, press the "Start" button, the servo motor 10 starts to run, when the rotation angle reaches A, the motor 10 stops, and the operator checks the crankshaft surface one by one for defects such as cracks, spots, uneven processing, scratches, bumps and other quality defects; secondly, press the "Continue" button, the servo motor 10 starts to run, when the rotation angle reaches B, the motor 10 stops, and the operator checks the crankshaft surface defects in turn as described above; again, press the "Continue" button, the servo motor 10 starts to run, when the rotation angle reaches C, the motor 10 stops, and the operator checks the crankshaft surface defects in turn as described above, until all the inspection work of the crankshaft surface defects is completed; finally, the crankshaft is hoisted and placed and transferred to the next process.

[0024] By slowly rotating the crankshaft 6, the operator checks the crankshaft surface one by one for defects, such as cracks, spots, uneven processing, scratches, bumps and other quality defects.

[0025] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A device for detecting the surface quality of an engine crankshaft that can rotate at any angle, comprising a workbench (1), characterized in that: A fixing plate (2) is vertically provided at one end of the workbench (1), and a motor bracket (3) is provided at the other end. A slide seat (4) is installed on the side of the fixing plate (2). A telescopic fastener (5) capable of horizontal sliding is provided on the slide seat (4). A positioning groove (7) adapted to one end of the crankshaft (6) is provided at the end of the telescopic fastener (5). A bushing (8) is provided in the positioning groove (7). A coupling assembly (9) is provided on the motor bracket (3). A crankshaft stopper (16) connected to the other end of the crankshaft (6) is provided at one end of the coupling assembly (9). A motor (10) connected to the coupling assembly (9) is provided on the motor bracket (3). A stepped hole (11) extending through both ends is provided in the slide seat (4). The lower end of the stepped hole (11) is provided with a stopper (16) adapted to the fixing plate (6). The fastener (12) is connected to the plate (2), the large end of the stepped hole (11) is matched with one end of the telescopic fastener (5), one side of the slide seat (4) is provided with a pin (13) that can be radially spirally extended into the hole wall of the stepped hole (11), the telescopic fastener (5) is a stepped shaft structure, the small end of the stepped shaft structure is matched with the large end of the stepped hole (11), and the small end of the stepped shaft structure is threadedly connected with a positioning nut (14); the positioning groove (7) is provided on the end surface of the large end of the stepped shaft structure, the fixing plate (2) is provided with a connecting seat (15) connected to the fastener (12), the connecting seat (15) is provided with a screw hole connected to the fastener (12), and the end of the fastener (12) is provided with a limiting convex edge adapted to the step surface in the stepped hole (11).

2. The detection device for the surface quality of an engine crankshaft that can rotate at any angle according to claim 1, characterized in that: The crankshaft top stopper (16) is a top cone structure, a bearing seat is provided at one end of the motor bracket (3), the crankshaft top stopper (16) is rotatably arranged on the bearing seat, and the two ends of the coupling assembly (9) are respectively connected to the top cone structure and the motor (10).

3. The detection device for the surface quality of an engine crankshaft that can rotate at any angle according to claim 2, characterized in that: The motor (10) is a servo motor.

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