Axial run-out degree detection device for rotary workpiece

Abstract

The utility model discloses a rotary body workpiece axial runout degree detection device which comprises a conveying chain support, a pair of conveying chains is arranged on the conveying chain support, the conveying chains are wound on a driving shaft and a driven shaft which are rotatably supported at the two ends of the conveying chain support, the driving shaft is connected with the output end of a conveying chain motor through a chain transmission pair, and the driven shaft is connected with the output end of the conveying chain motor through a chain transmission pair. The detection device further comprises a positioning detection support, two symmetrically-distributed lifting cylinders are arranged at the bottom of the positioning detection support, the working ends of the two lifting cylinders are connected with the lifting frame at the same time, and two symmetrically-distributed lifting supporting frames are further arranged at the bottom of the positioning detection support. The lifting frame is connected between the two lifting supporting frames in a sliding mode, a rotating motor is arranged on the lifting frame, the output end of the rotating motor is connected with the bottom end of a rotating shaft through a belt wheel transmission pair, the rotating shaft is rotationally supported in a shaft sleeve, and the shaft sleeve is fixedly arranged on the lifting frame. And a lower positioning cone is arranged at the top end of the rotating shaft.

Description

Technical Field

[0001] The utility model relates to the field of workpiece size accuracy detection, in particular to a device for detecting the axial runout of a rotating workpiece. Background Art

[0002] Before any workpiece leaves the factory, it needs to be tested for dimensional accuracy. If the dimensional accuracy is not up to standard, it cannot leave the factory. For some rotating workpieces, sometimes the axial runout on the plane is a parameter that must be tested. The traditional way is to place the rotating workpiece on a turntable, fix it with the fixture on the turntable, drive the turntable to drive the workpiece to rotate, and during the rotation of the workpiece, hit the probe of the micrometer and other measuring instruments on the measured plane, and observe the reading of the measuring instrument.

[0003] This operation method is time-consuming and labor-intensive, requires a lot of manpower, and has low work efficiency. At the same time, the accuracy of the operation is also related to the operator's proficiency, which is prone to measurement errors.

[0004] Therefore, a method or device capable of solving the above problems is now needed. Utility Model Content

[0005] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a device with simple structure, ingenious design and reasonable layout, which can automatically detect the runout of a rotating workpiece in a certain plane on its axial direction.

[0006] The technical solution of the utility model is: a device for detecting the axial runout of a rotating workpiece, characterized in that: the detection device comprises a conveyor chain bracket 1, a pair of conveyor chains 2 are arranged on the conveyor chain bracket 1, the conveyor chain 2 is wound around a driving shaft 3 and a driven shaft rotatably supported at both ends of the conveyor chain bracket 1, the driving shaft 3 is connected to the output end of the conveyor chain motor 5 through a chain transmission pair 4,

[0007] The detection device also includes a positioning detection bracket 6, and two symmetrically distributed lifting cylinders 7 are arranged at the bottom of the positioning detection bracket 6. The working ends of the two lifting cylinders 7 are connected to the lifting frame 8 at the same time. Two symmetrically distributed lifting support frames 9 are also arranged at the bottom of the positioning detection bracket 6. The lifting frame 8 is slidably connected between the two lifting support frames 9. A rotating motor 10 is arranged on the lifting frame 8. The output end of the rotating motor 10 is connected to the bottom end of the rotating shaft 12 through a pulley transmission pair 11. The rotating shaft 12 is rotatably supported in a shaft sleeve 13, and the shaft sleeve 13 is fixedly arranged on the lifting frame 8. The top of the rotating shaft 12 is provided with a lower positioning cone 14.

[0008] A clamping cylinder 15 is provided on the top of the positioning detection bracket 6, and the output end of the clamping cylinder 15 is a clamping shaft 16. The end of the clamping shaft 16 is movably sleeved with a connecting plate, and the connecting plate is rotatably connected to the upper positioning cone 18 through a plane bearing 17. The outer sleeve of the clamping shaft 16 is sleeved with a spring 31, and the end of the spring 31 is pressed against the top surface of the connecting plate.

[0009] The positioning detection bracket 6 is also provided with a detector bracket 19, and an X-axis cylinder 20 is provided on the detector bracket 19. The end of the output shaft of the X-axis cylinder 20 is connected to the X-axis bracket 21. The X-axis bracket 21 is also connected with an X-axis guide sleeve 22. The X-axis guide sleeve 22 is movably connected to an X-axis guide rod 23 fixedly arranged on the positioning detection bracket 6. A Z-axis cylinder 24 is provided on the X-axis bracket 21. A Z-axis bracket 25 is provided at the end of the output shaft of the Z-axis cylinder 24. A detector 26 is provided on the Z-axis bracket 25. A Z-axis guide rod 27 is provided on the Z-axis bracket 25. The Z-axis guide rod 27 is movably connected to a Z-axis guide sleeve 28 arranged on the X-axis bracket 21.

[0010] The conveyor chain support 6 is also provided with a workpiece arrival sensor 29 corresponding to the position of the detector support 19.

[0011] The distance between the two chains in the conveying chain 2 is smaller than the outer diameter of the bottom end surface of the rotating workpiece 30 .

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] This type of structural form of the axial runout detection device for rotating workpieces has a simple structure, ingenious design, and reasonable layout. It is designed to solve the problems existing in the axial runout detection of a plane of a traditional rotating workpiece, and a special structure is designed. It can automatically complete the transportation, positioning, posture adjustment, and axial flatness detection of the rotating workpiece. Its appearance can reduce the labor of workers and improve the efficiency of detection. At the same time, it can also ensure the quality of detection and the accuracy of the detection results. In addition, its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the positioning detection bracket part in the embodiment of the utility model (angle one).

[0016] Figure 3 It is a structural schematic diagram of the positioning detection bracket part in the embodiment of the utility model (angle two).

[0017] Figure 4 yes Figure 2 Enlarged view of part A in . DETAILED DESCRIPTION

[0018] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figures 1 to 4 As shown: A device for detecting the axial runout of a rotating workpiece, which includes a conveyor chain support 1 as a basis, a pair of conveyor chains 2 are arranged on the conveyor chain support 1, and the conveyor chains 2 are wound around a driving shaft 3 and a driven shaft rotatably supported at both ends of the conveyor chain support 1, and the driving shaft 3 is connected to the output end of the conveyor chain motor 5 through a chain transmission pair 4.

[0019] The detection device also includes a positioning detection bracket 6, and two symmetrically distributed lifting cylinders 7 are arranged at the bottom of the positioning detection bracket 6. The working ends of the two lifting cylinders 7 are connected to the lifting frame 8 at the same time. Two symmetrically distributed lifting support frames 9 are also arranged at the bottom of the positioning detection bracket 6. The lifting frame 8 is slidably connected between the two lifting support frames 9. A rotating motor 10 is arranged on the lifting frame 8. The output end of the rotating motor 10 is connected to the bottom end of the rotating shaft 12 through a pulley transmission pair 11. The rotating shaft 12 is rotatably supported in a shaft sleeve 13, and the shaft sleeve 13 is fixedly arranged on the lifting frame 8. The top of the rotating shaft 12 is provided with a lower positioning cone 14.

[0020] A clamping cylinder 15 is provided on the top of the positioning detection bracket 6, and the output end of the clamping cylinder 15 is a clamping shaft 16. The end of the clamping shaft 16 is movably sleeved with a connecting plate, and the connecting plate is rotatably connected to the upper positioning cone 18 through a plane bearing 17. The outer sleeve of the clamping shaft 16 is sleeved with a spring 31, and the end of the spring 31 is pressed against the top surface of the connecting plate.

[0021] The positioning detection bracket 6 is also provided with a detector bracket 19, and an X-axis cylinder 20 is provided on the detector bracket 19. The end of the output shaft of the X-axis cylinder 20 is connected to the X-axis bracket 21. The X-axis bracket 21 is also connected with an X-axis guide sleeve 22. The X-axis guide sleeve 22 is movably connected to an X-axis guide rod 23 fixedly arranged on the positioning detection bracket 6. A Z-axis cylinder 24 is provided on the X-axis bracket 21. A Z-axis bracket 25 is provided at the end of the output shaft of the Z-axis cylinder 24. A detector 26 is provided on the Z-axis bracket 25. A Z-axis guide rod 27 is provided on the Z-axis bracket 25. The Z-axis guide rod 27 is movably connected to a Z-axis guide sleeve 28 arranged on the X-axis bracket 21.

[0022] The conveyor chain support 6 is also provided with a workpiece arrival sensor 29 corresponding to the position of the detector support 19.

[0023] The distance between the two chains in the conveying chain 2 is smaller than the outer diameter of the bottom end surface of the rotating workpiece 30 .

[0024] The working process of the rotating workpiece axial runout detection device of the embodiment of the utility model is as follows: the rotating workpiece 30 to be detected is placed on the conveyor chain 2 by manual loading, and the center of the rotating workpiece 30 needs to be placed on the central axis of the conveyor chain 2 as much as possible (even if there is an error, it will not affect the final detection result, and automatic centering adjustment will be performed during the subsequent detection).

[0025] Under the action of the conveying chain 2, the rotating workpiece 30 moves toward the direction of the positioning detection bracket 6; when the rotating workpiece 30 moves to the detection position, the workpiece in-place sensor 29 arranged there detects the workpiece, and then sends a signal to the control system, and the control system controls the lifting cylinder 7 to work, driving the lifting frame 8 to move upward, and when the lifting frame 8 moves, it will slide relative to the lifting support frame 9, and all the mechanisms thereon will rise together, and the lower positioning cone 14 at the top of the rotating shaft 12 will be inserted into the through hole opened in the center of the rotating workpiece 30, and lift the rotating workpiece 30;

[0026] At the same time, the clamping cylinder 15 works, driving the clamping shaft 16 and the upper positioning cone 18 downward, and the upper positioning cone 18 is also inserted into the through hole in the center of the rotating workpiece 30. Under the action of the spring 31, the upper positioning cone 18 always applies a downward pressure on the rotating workpiece 30;

[0027] The upper positioning cone 18 and the lower positioning cone 14 work together to center and adjust the rotating workpiece 30 to a standard position and posture to be detected; at this time, the rotating workpiece 30 is completely clamped and supported by the upper and lower positioning cones and is separated from the conveyor chain 2;

[0028] After the above actions are completed, the control system controls the X-axis cylinder 20 to work, driving the X-axis bracket 21 to extend, allowing the detector 26 to move above the rotating workpiece 30, and then controls the Z-axis cylinder 24 to work, driving the Z-axis bracket 25 downward, so that the probe at the bottom of the detector 26 contacts the measured plane of the rotating workpiece 20 to be measured.

[0029] Then the control system controls the rotating motor 10 to work, driving the rotating shaft 12 to rotate, and the lower positioning cone 14 arranged at the top of the rotating shaft 12 drives the rotating workpiece 30 to rotate at a constant speed; during this process, the detector 26 automatically detects the runout of the measured plane in the axial direction of the rotating workpiece 30, and sends the detection result to the control system, and the control system determines whether the current measured rotating workpiece 30 is qualified according to the result; if it is unqualified, the control system issues a prompt to remind the staff;

[0030] It should be noted that before the formal test, a workpiece that meets the axial runout requirements needs to be taken and calibrated according to the above operation; and each actuator in the device, that is, all cylinders, when its working end moves to the limit position, the mechanism it drives will move to the required position;

[0031] After the inspection of a rotating workpiece 30 is completed, each cylinder works in the reverse direction to allow the rotating workpiece 30 to fall back onto the conveyor chain 2. The conveyor chain 2 continues to transport qualified products to the next workstation, and unqualified products will be taken away by the staff in time.

Claims

1. A device for detecting axial runout of a rotating workpiece, characterized in that: The detection device comprises a conveyor chain support (1), a pair of conveyor chains (2) being arranged on the conveyor chain support (1), the conveyor chains (2) being wound around a driving shaft (3) and a driven shaft rotatably supported at both ends of the conveyor chain support (1), the driving shaft (3) being connected to the output end of a conveyor chain motor (5) via a chain transmission pair (4), The detection device further comprises a positioning detection bracket (6), the bottom of which is provided with two symmetrically distributed A lifting cylinder (7), the working ends of the two lifting cylinders (7) are connected to the lifting frame (8) at the same time, and two symmetrically distributed lifting support frames (9) are also arranged at the bottom of the positioning detection bracket (6), the lifting frame (8) is slidably connected between the two lifting support frames (9), and a rotating motor (10) is arranged on the lifting frame (8), and the output end of the rotating motor (10) is connected to the bottom end of the rotating shaft (12) through a pulley transmission pair (11), and the rotating shaft (12) is rotatably supported in a shaft sleeve (13), and the shaft sleeve (13) is fixedly arranged on the lifting frame (8), and a lower positioning cone (14) is arranged at the top end of the rotating shaft (12). A clamping cylinder (15) is arranged on the top of the positioning detection bracket (6), the output end of the clamping cylinder (15) is a clamping shaft (16), the end of the clamping shaft (16) is movably sleeved with a connecting plate, the connecting plate is rotatably connected to the upper positioning cone (18) through a plane bearing (17), the outer sleeve of the clamping shaft (16) is sleeved with a spring (31), the end of the spring (31) is pressed against the top end surface of the connecting plate, The positioning detection bracket (6) is also provided with a detector bracket (19), and an X-axis cylinder (20) is provided on the detector bracket (19). The end of the output shaft of the X-axis cylinder (20) is connected to the X-axis bracket (21), and the X-axis bracket (21) is also connected to an X-axis guide sleeve (22), and the X-axis guide sleeve (22) is movably connected to an X-axis guide rod (23) fixedly provided on the positioning detection bracket (6). The X-axis bracket (21) is provided with a Z-axis cylinder (24), and the end of the output shaft of the Z-axis cylinder (24) is provided with a Z-axis bracket (25), and the Z-axis bracket (25) is provided with a detector (26). The Z-axis bracket (25) is provided with a Z-axis guide rod (27), and the Z-axis guide rod (27) is movably connected to a Z-axis guide sleeve (28) provided on the X-axis bracket (21). The conveyor chain support (1) is also provided with a workpiece arrival sensor (29) corresponding to the position of the detector support (19). The distance between two chains in the conveying chain (2) is smaller than the outer diameter of the bottom end surface of the rotating workpiece (30).

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