Electric aligning device for large bearing roundness measuring instrument

Abstract

The utility model discloses an electric aligning device for a large bearing roundness measuring instrument, which comprises a connecting seat, a turntable is arranged in the middle of the upper part of the connecting seat, three mounting racks are fixedly connected above the connecting seat, the outer ends of the mounting racks are fixedly connected with fourth driving motors, and the fourth driving motors are fixedly connected with third driving motors. The output end of the fourth driving motor is fixedly connected with a screw rod, the screw rod is in threaded connection with a thread sleeve, the other end of the thread sleeve is fixedly connected with an arc-shaped positioning piece, the mounting frame is fixedly connected with a telescopic rod, and the extending end of the telescopic rod is fixedly connected with the arc-shaped positioning piece. By arranging a mounting frame, a fourth driving motor and a screw rod, a screw sleeve can drive arc-shaped positioning pieces to move, the outer end of a bearing can be positioned by arranging the three arc-shaped positioning pieces, and the fourth driving motor works synchronously, so that the arc-shaped positioning pieces are concentric with a rotating disc; therefore, the electric aligning operation of the whole device is realized.

Description

Technical Field

[0001] The utility model relates to the field of bearing roundness measuring instruments, in particular to an electric centering device used for large-scale bearing roundness measuring instruments. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy;

[0003] It is known that roundness instruments in the bearing industry and the machinery industry are only suitable for measuring micro and small and medium-sized bearings. There is currently no roundness detection instrument suitable for large bearings, which has led to the fact that the quality of large domestic bearings has been unstable. In actual production activities, large bearing roundness measuring instruments require manual adjustment of the concentricity of the bearing during measurement, which is time-consuming and labor-intensive, and reduces the measurement efficiency of the entire measuring instrument. There is an urgent need to provide an electric centering device for large bearing roundness measuring instruments. Utility Model Content

[0004] The utility model aims to provide an electric centering device for a large bearing roundness measuring instrument, which solves the problem that the large bearing roundness measuring instrument in the prior art needs to manually adjust the concentricity of the bearing during measurement, which is time-consuming and labor-intensive and reduces the measurement efficiency of the entire measuring instrument.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electric self-aligning device for a large bearing roundness measuring instrument, comprising a connecting seat, a turntable is arranged in the middle of the upper part of the connecting seat, three mounting brackets are fixedly connected to the upper part of the connecting seat, a fourth drive motor is fixedly connected to the outer end of the mounting bracket, a screw is fixedly connected to the output end of the fourth drive motor, and a screw sleeve is threadedly connected to the screw;

[0006] The other end of the screw sleeve is fixedly connected with an arc-shaped positioning piece, and the mounting frame is fixedly connected with a telescopic rod, and the extending end of the telescopic rod is fixedly connected with the arc-shaped positioning piece.

[0007] As a further description of the above technical solution: a connecting frame is fixedly connected to an upper end of the connecting seat, and a third driving motor is fixedly connected to an upper end of the connecting frame.

[0008] As a further description of the above technical solution: the output end of the third driving motor passes through the connecting frame and is provided with a first lead screw inwardly.

[0009] As a further description of the above technical solution: a first slot is formed at an outer end of the connecting frame, and a first threaded block is threadedly connected to the first lead screw.

[0010] As a further description of the above technical solution: one end of the first threaded block is fixedly connected to a fixing frame, and one outer end of the fixing frame is fixedly connected to a second driving motor.

[0011] As a further description of the above technical solution: the output end of the second driving motor passes through the fixed frame and is internally provided with a second lead screw, the second lead screw is threadedly connected with a second threaded block, the fixed frame is provided with a second slot, and the second threaded block passes through the second slot and is externally provided with a detection head.

[0012] As a further description of the above technical solution: the four lower ends of the connecting seat are fixedly connected to a support frame, the bottom of the support frame is fixedly connected to a base, the upper middle part of the base is fixedly connected to a first drive motor, the output end of the first drive motor is fixedly connected to a rotating rod, the other end of the rotating rod is fixedly connected to a turntable, and a rotating part is provided at the connection between the rotating rod and the connecting seat.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the electric self-aligning device for a large bearing roundness measuring instrument can enable the screw sleeve to drive the arc-shaped positioning piece to move by setting a mounting frame, a fourth driving motor, and a screw rod. By setting three arc-shaped positioning pieces, the outer end of the bearing can be positioned, and the fourth driving motor operates synchronously, so that the arc-shaped positioning piece is concentric with the turntable, thereby realizing the electric self-aligning operation of the entire device;

[0015] 2. Compared with the prior art, the electric centering device for a large bearing roundness measuring instrument can adjust the longitudinal and lateral positions of the detection head by setting a second drive motor, a third drive motor, a first screw and a second screw, thereby being able to perform roundness measurement operations on the bearings on the turntable.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a top view of the turntable of the utility model.

[0020] Figure 3 This utility model Figure 1 Schematic diagram of the structure of A.

[0021] Figure 4 It is a structural schematic diagram of a connecting frame of the utility model.

[0022] Legend:

[0023] 1. Connecting seat; 2. Support frame; 3. Base; 4. First drive motor; 5. Rotating rod; 6. Turntable; 7. Arc positioning member; 8. Rotating member; 9. First slot; 10. First lead screw; 11. First threaded block; 12. Second drive motor; 13. Connecting frame; 14. Third drive motor; 15. Fixed frame; 16. Detection head; 17. Telescopic rod; 18. Fourth drive motor; 19. Screw; 20. Screw sleeve; 21. Mounting frame; 22. Second threaded block; 23. Second lead screw; 24. Second slot. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4 The utility model provides an embodiment of an electric centering device for a large bearing roundness measuring instrument, comprising a connecting seat 1, a turntable 6 is arranged in the middle of the upper part of the connecting seat 1, three mounting brackets 21 are fixedly connected to the upper part of the connecting seat 1, a fourth driving motor 18 is fixedly connected to the outer end of the mounting bracket 21, a screw rod 19 is fixedly connected to the output end of the fourth driving motor 18, the screw rod 19 can be driven to rotate by starting the fourth driving motor 18, and a screw sleeve 20 is threadedly connected to the rod 19;

[0026] The other end of the screw sleeve 20 is fixedly connected to the arc-shaped positioning member 7, and the mounting frame 21 is fixedly connected to the telescopic rod 17. The extended end of the telescopic rod 17 is fixedly connected to the arc-shaped positioning member 7. Under the action of the threaded connection, the screw sleeve 20 can drive the arc-shaped positioning member 7 to move, so as to position the bearing and ensure that the bearing is concentric with the turntable 6, thereby realizing the electric self-aligning operation of the entire device;

[0027] A connecting frame 13 is fixedly connected to one end of the upper end of the connecting seat 1, and a third driving motor 14 is fixedly connected to the upper end of the connecting frame 13. The output end of the third driving motor 14 passes through the connecting frame 13 and is provided with a first screw 10 inwardly. A first slot 9 is provided at the outer end of the connecting frame 13. A first threaded block 11 is threadedly connected to the first screw 10. One end of the first threaded block 11 is fixedly connected to a fixing frame 15. An outer end of the fixing frame 15 is fixedly connected to a second driving motor 12. By starting the third driving motor 14, the internal first screw 10 can be driven to rotate. Under the action of the threaded connection, the first threaded block 11 can drive the detection head 16 to move downward, so that the detection head 16 contacts the bearing.

[0028] The output end of the second drive motor 12 passes through the fixed frame 15 and is provided with a second lead screw 23 inwardly, and a second threaded block 22 is threadedly connected to the second lead screw 23. The fixed frame 15 is provided with a second slot 24, and the second threaded block 22 passes through the second slot 24 and is provided with a detection head 16 outwardly. By starting the second drive motor 12, the second lead screw 23 can be driven to rotate. Under the action of the threaded connection, the second threaded block 22 can drive the detection head 16 to adjust the lateral position, thereby improving the applicability of the entire detection assembly;

[0029] The four ends below the connecting seat 1 are fixedly connected to a support frame 2, the bottom of the support frame 2 is fixedly connected to a base 3, the upper middle part of the base 3 is fixedly connected to a first drive motor 4, the output end of the first drive motor 4 is fixedly connected to a rotating rod 5, the other end of the rotating rod 5 is fixedly connected to a turntable 6, and a rotating member 8 is provided at the connection between the rotating rod 5 and the connecting seat 1. Starting the first drive motor 4 at the bottom can make the turntable 6 drive the bearing to rotate, thereby realizing its roundness detection operation. At the same time, the arc positioning member 7 is in a loose state during the rotation process. The detection head 16 is a sensor, and the signal measured by the detection head 16 is converted, filtered, amplified and output to the A\D data acquisition card controlled by the computer through the pre-detection circuit.

[0030] Working principle: When the device is in use, first place the bearing to be measured on the turntable 6, and then control the synchronous start of the fourth drive motor 18 through the controller. The fourth drive motor 18 can drive the screw 19 to rotate, and the threaded connection can make the screw sleeve 20 drive the arc positioning member 7 to move, so as to position the bearing and ensure that the bearing is concentric with the turntable 6, thereby realizing the electric centering operation of the entire device, and then start the third drive motor 14 above to drive the first lead screw 10 to rotate, and the threaded connection can make the first thread block 11 drive the detection head 16 to move downward, so that the detection head 16 contacts the bearing, and finally start the first drive motor 4 at the bottom to make the turntable 6 drive the bearing to rotate, so as to realize its roundness detection operation.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An electric centering device for a large bearing roundness measuring instrument, comprising a connecting seat (1), characterized in that: A rotating disk (6) is arranged in the middle of the upper part of the connecting seat (1); three mounting frames (21) are fixedly connected to the upper part of the connecting seat (1); a fourth driving motor (18) is fixedly connected to the outer end of the mounting frame (21); a screw rod (19) is fixedly connected to the output end of the fourth driving motor (18); a screw sleeve (20) is threadedly connected to the screw rod (19); The other end of the screw sleeve (20) is fixedly connected to an arc-shaped positioning piece (7), the mounting frame (21) is fixedly connected to a telescopic rod (17), and the extended end of the telescopic rod (17) is fixedly connected to the arc-shaped positioning piece (7).

2. The electric centering device for a large bearing roundness measuring instrument according to claim 1, characterized in that: A connecting frame (13) is fixedly connected to one upper end of the connecting seat (1), and a third driving motor (14) is fixedly connected to the upper end of the connecting frame (13).

3. The electric centering device for a large bearing roundness measuring instrument according to claim 2, characterized in that: The output end of the third drive motor (14) passes through the connecting frame (13) and is provided with a first lead screw (10) inwardly.

4. The electric centering device for a large bearing roundness measuring instrument according to claim 3 is characterized in that: The outer end of the connecting frame (13) is provided with a first slot (9), and the first lead screw (10) is threadedly connected with a first threaded block (11).

5. The electric centering device for a large bearing roundness measuring instrument according to claim 4, characterized in that: One end of the first threaded block (11) is fixedly connected to a fixing frame (15), and an outer end of the fixing frame (15) is fixedly connected to a second driving motor (12).

6. The electric centering device for a large bearing roundness measuring instrument according to claim 5, characterized in that: The output end of the second drive motor (12) passes through the fixed frame (15) and is provided with a second lead screw (23) inwardly, the second lead screw (23) is threadedly connected with a second threaded block (22), the fixed frame (15) is provided with a second slot (24), and the second threaded block (22) passes through the second slot (24) and is provided with a detection head (16) outwardly.

7. The electric centering device for a large bearing roundness measuring instrument according to claim 1, characterized in that: The four lower ends of the connecting seat (1) are fixedly connected to a support frame (2), the bottom of the support frame (2) is fixedly connected to a base (3), the upper middle part of the base (3) is fixedly connected to a first drive motor (4), the output end of the first drive motor (4) is fixedly connected to a rotating rod (5), the other end of the rotating rod (5) is fixedly connected to a rotating disk (6), and a rotating member (8) is provided at the connection between the rotating rod (5) and the connecting seat (1).

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