Bearing detection clamping mechanism

Abstract

The utility model discloses a bearing detection clamping mechanism, belongs to the field of bearing clamps, relates to a bearing detection technology, and solves the technical problems that when a traditional mechanical measurement method is used for measuring the roundness of a bearing, the bearing is not firmly fixed, the bearing is easy to deviate or shake in the measurement process, and the error of the measurement result is large. Comprising a workbench, a rack, a telescopic clamp and a connecting block, when compressed air enters the air cylinder through a first air inlet of the air cylinder, the piston rod moves downwards, the telescopic clamp is opened, and the bearing inner ring is fixed; when compressed air enters the air cylinder through a second air inlet hole of the air cylinder, the piston rod moves upwards, the telescopic clamp contracts, and the bearing inner ring is released; in the working process, the bearing is fixed through the telescopic clamp, the outer ring of the bearing is rotated, and the roundness error of the bearing is calculated by reading the reading difference value of the dial indicator fixed on the connecting block of the screw; the arrangement of the telescopic clamp effectively prevents the bearing from shaking in the detection process, and improves the accuracy of the detection result.

Description

Technical Field

[0001] The utility model belongs to the field of bearing fixtures, relates to bearing detection technology, and specifically is a bearing detection clamping mechanism. 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. Bearing roundness refers to the roundness error of the inner diameter or outer diameter of the bearing. When the roundness error of the inner diameter or outer diameter of the bearing is too large, it will cause vibration and noise during operation, accelerate the wear and fatigue of the bearing, and even cause bearing failure. Therefore, bearing roundness is one of the important indicators of bearing accuracy.

[0003] There are two main methods for measuring the roundness of bearings: mechanical measurement and optical measurement. Mechanical measurement mainly uses an inner diameter or outer diameter measuring instrument to measure the inner diameter or outer diameter of the bearing, and then calculates the roundness error; while optical measurement uses a projector or scanner to measure the inner diameter or outer diameter of the bearing, and then processes and analyzes the data through a computer to obtain the roundness error of the bearing.

[0004] When measuring the roundness of a bearing using traditional mechanical measurement methods, the bearing is not firmly fixed and is prone to displacement or shaking during the measurement process, resulting in large errors in the measurement results.

[0005] To this end, the utility model proposes a bearing detection clamping mechanism. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a bearing detection clamping mechanism, which solves the problem that when the traditional mechanical measurement method is used to measure the roundness of the bearing, the bearing is not firmly fixed, the bearing is easily offset or shaken during the measurement process, and the measurement result often has large errors.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a bearing detection clamping mechanism is provided, comprising: a workbench, a telescopic clamp and a stand, wherein one end of the stand is fixedly mounted on one side of the workbench, and the telescopic clamp is fixedly connected to the other end of the stand;

[0008] The telescopic clamp includes a connecting seat plate, a second stiffening plate and a limiting plate, wherein the connecting seat plate is fixedly connected to one end of the second stiffening plate, and the other end of the second stiffening plate is fixedly connected to the limiting plate;

[0009] A cylinder is fixedly mounted on one side of the limit plate close to the connecting seat plate, and the cylinder is located between the connecting seat plate and the limit plate; an extension hole is opened on the limit plate, wherein a piston rod arranged on the cylinder passes through the extension hole and extends in a direction away from the connecting seat plate;

[0010] The piston rod is fixedly connected to a connecting plate, and a plurality of telescopic arms are hingedly connected to the outer side of the connecting plate in a circumferential direction; a plurality of slots are pre-opened on the limit plate, and the slots are adapted to the telescopic arms; one end of the telescopic arm passes through the slot, and a telescopic claw hook is hingedly connected to the telescopic arm;

[0011] The workbench is also fixedly provided with a screw rod, the screw rod is provided with a connecting block via a bolt, the connecting block is provided with a mounting hole, and a dial indicator is movably mounted on the connecting block via the mounting hole.

[0012] Preferably, a plurality of first stiffening plates are provided at the welding point between the frame and the workbench.

[0013] Preferably, the connecting seat plate and the limiting plate remain parallel.

[0014] Preferably, the telescopic claw hook is provided with a first mounting hole and a second mounting hole, the telescopic arm is hingedly connected to the first mounting hole, and the card slot is hingedly connected to the second mounting hole.

[0015] Preferably, the cylinder is respectively provided with a first air inlet hole and a second air inlet hole, and external compressed air is connected through the first air inlet hole and the second air inlet hole.

[0016] Preferably, the screw rod and the workbench are in an inclined state.

[0017] Compared with the prior art, the utility model has the following beneficial effects: during operation, when compressed air enters the cylinder through the first air inlet hole, the piston rod moves downward, causing the connecting plate fixed on the piston rod to pull the telescopic arm to move downward together. Due to the constraint of the limit plate, the telescopic arm is retracted toward the cylinder, driving the telescopic claw hook to move away from the cylinder, thereby clamping the inner ring of the bearing;

[0018] After fixing the bearing, rotate the outer ring of the bearing and quickly calculate the roundness error of the outer ring of the bearing by observing the difference in the reading of the dial indicator installed on the connecting block on the screw.

[0019] After the detection is completed, when the compressed air enters the cylinder through the second air inlet hole, the piston rod moves upward, causing the connecting plate fixed on the piston rod to pull the telescopic arm to move upward together, and the telescopic arm moves away from the cylinder, driving the telescopic claw hook to retract towards the cylinder, thereby releasing the inner ring of the bearing; the setting of the telescopic clamp effectively avoids shaking during the bearing detection process and improves the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a front view of the utility model;

[0022] Figure 3 This is a structural diagram of the telescopic clamp of the utility model;

[0023] Figure 4 This is a structural diagram of the telescopic clamp and telescopic grab hook of the utility model.

[0024] In the figure: 1. workbench; 2. stand; 3. telescopic clamp; 4. screw; 5. connecting block; 6. dial indicator; 7. telescopic arm; 8. telescopic claw hook; 9. cylinder; 10. piston rod; 11. connecting seat plate; 12. limit plate; 13. connecting plate; 14. first stiffening plate; 15. second stiffening plate; 16. first mounting hole; 17. second mounting hole; 18. slot. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 2 As shown, a bearing detection clamping mechanism includes a workbench 1, a stand 2 and a telescopic clamp 3; one end of the stand 2 is welded and installed on one side of the workbench 1, and the other end of the stand 2 is fixedly installed with the telescopic clamp 3; wherein at least one first stiffening plate 14 is provided at the welding point between the stand 2 and the workbench 1, and the first stiffening plate 14 is used to connect the workbench 1 and the stand 2 to improve the connection stability between the workbench 1 and the stand 2;

[0027] like Figure 3-Figure 4 As shown, the telescopic clamp 3 includes a connecting seat plate 11, a second stiffening plate 15 and a limiting plate 12, wherein the connecting seat plate 11 is fixedly connected to one end of the second stiffening plate 15, and the other end of the second stiffening plate 15 is fixedly connected to the limiting plate 12, wherein the connecting seat plate 11 and the limiting plate 12 are kept parallel; a cylinder 9 is fixedly installed on the limiting plate 12 near the connecting seat plate 11, the cylinder 9 is located between the connecting seat plate 11 and the limiting plate 12, and the cylinder 9 is provided with a piston rod 10;

[0028] The limit plate 12 is provided with an extension hole, wherein the piston rod 10 of the cylinder 9 passes through the extension hole and extends in a direction away from the connection seat plate 11;

[0029] The piston rod 10 is fixedly connected to a connecting plate 13, and a plurality of telescopic arms 7 are circumferentially hingedly connected to the outer side of the connecting plate 13; it should be noted that a plurality of slots 18 are pre-opened on the limit plate 12, and the slots 18 are adapted to the telescopic arms 7;

[0030] One end of the telescopic arm 7 passes through a slot 18 provided on the limit plate 12, and the telescopic arm 7 is hingedly connected to a telescopic claw hook 8; the telescopic claw hook 8 is provided with a first mounting hole 16 and a second mounting hole 17, wherein the telescopic arm 7 is hingedly connected to the first mounting hole 16 of the telescopic claw hook 8, and the slot 18 is hingedly connected to the second mounting hole 17;

[0031] In the present application, the cylinder 9 is respectively provided with a first air inlet hole and a second air inlet hole, through which external compressed air is connected. When compressed air enters the cylinder 9 through the first air inlet hole, the piston rod 10 moves downward, so that the connecting plate 13 fixed on the piston rod 10 pulls the telescopic arm 7 to move downward together. Due to the constraint of the limit plate 12, the telescopic arm 7 is retracted toward the cylinder 9, driving the telescopic claw hook 8 to move away from the cylinder 9, thereby clamping the inner ring of the bearing;

[0032] When compressed air enters the cylinder 9 through the second air inlet hole, the piston rod 10 moves upward, causing the connecting plate 13 fixed on the piston rod 10 to pull the telescopic arm 7 to move upward together, and the telescopic arm 7 moves away from the cylinder 9, driving the telescopic claw hook 8 to close to the cylinder 9, thereby releasing the inner ring of the bearing;

[0033] During operation, the bearing can be quickly locked or released by the movement of the cylinder 9;

[0034] like Figure 2 As shown, a screw rod 4 is also fixedly installed on the workbench 1, and the screw rod 4 is located on one side of the telescopic claw hook 8; the screw rod 4 is installed with a connecting block 5 through a bolt, and the connecting block 5 is provided with a mounting hole, and a dial indicator 6 is movably installed on the connecting block 5 through the mounting hole; it should be noted that in order to detect bearings of different specifications, the screw rod 4 and the workbench 1 are in an inclined state, which is convenient for adjusting the distance between the dial indicator 6 and the bearing;

[0035] During work, fix the inner ring of the bearing on the telescopic claw hook 8 of the telescopic clamp 3, adjust the position of the connecting block 5 on the screw 4, make the pointer of the dial indicator 6 contact the outer ring of the bearing, and the dial of the dial indicator 6 displays any initial reading. Rotate the outer ring of the bearing, observe the change of the reading of the dial indicator 6, and calculate the roundness error of the bearing according to the difference of the readings of the dial indicator 6.

[0036] Working principle of the utility model: During operation, when compressed air enters the cylinder 9 through the first air inlet hole, the piston rod 10 moves downward, causing the connecting plate 13 fixed on the piston rod 10 to pull the telescopic arm 7 to move downward together. Due to the constraint of the limit plate 12, the telescopic arm 7 is retracted toward the cylinder 9, driving the telescopic claw hook 8 to move away from the cylinder 9, thereby clamping the inner ring of the bearing;

[0037] After fixing the bearing, rotate the outer ring of the bearing, and by observing the difference in readings of the dial indicator 6 installed on the connecting block 5 on the screw 4, the roundness error of the outer ring of the bearing can be quickly calculated;

[0038] After the detection is completed, when the compressed air enters the cylinder 9 through the second air inlet hole, the piston rod 10 moves upward, so that the connecting plate 13 fixed on the piston rod 10 pulls the telescopic arm 7 to move upward together, and the telescopic arm 7 moves away from the cylinder 9, driving the telescopic claw hook 8 to retract towards the cylinder 9, thereby releasing the inner ring of the bearing.

[0039] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A bearing detection clamping mechanism, comprising: A workbench (1) and a stand (2), wherein one end of the stand (2) is fixedly mounted on one side of the workbench (1); the workbench (1) further comprises a telescopic clamp (3), wherein the telescopic clamp (3) is fixedly connected to the other end of the stand (2); The telescopic clamp (3) comprises a connecting seat plate (11), a second stiffening plate (15) and a limiting plate (12); the connecting seat plate (11) is fixedly connected to one end of the second stiffening plate (15), and the other end of the second stiffening plate (15) is fixedly connected to the limiting plate (12); A cylinder (9) is fixedly mounted on one side of the limit plate (12) close to the connecting seat plate (11), and the cylinder (9) is located between the connecting seat plate (11) and the limit plate (12); an extension hole is provided on the limit plate (12), wherein a piston rod (10) provided on the cylinder (9) passes through the extension hole and extends in a direction away from the connecting seat plate (11); The piston rod (10) is fixedly connected to a connecting plate (13), and a plurality of telescopic arms (7) are hingedly connected to the outer side of the connecting plate (13) in a circumferential direction; a plurality of slots (18) are pre-opened on the limit plate (12), and the slots (18) are adapted to the telescopic arms (7); one end of the telescopic arm (7) passes through the slot (18), and a telescopic claw hook (8) is hingedly connected to the telescopic arm (7); A screw rod (4) is also fixedly mounted on the workbench (1), and a connecting block (5) is mounted on the screw rod (4) via bolts. The connecting block (5) is provided with a mounting hole, and a dial indicator (6) is movably mounted on the connecting block (5) via the mounting hole.

2. A bearing detection clamping mechanism according to claim 1, characterized in that: A plurality of first stiffening plates (14) are provided at the welding point between the stand (2) and the workbench (1).

3. A bearing detection clamping mechanism according to claim 1, characterized in that: The connecting seat plate (11) and the limiting plate (12) are kept parallel.

4. A bearing detection clamping mechanism according to claim 1, characterized in that: The telescopic claw hook (8) is provided with a first mounting hole (16) and a second mounting hole (17); the telescopic arm (7) is hingedly connected to the first mounting hole (16); and the clamping slot (18) is hingedly connected to the second mounting hole (17).

5. A bearing detection clamping mechanism according to claim 1, characterized in that: The cylinder (9) is respectively provided with a first air inlet hole and a second air inlet hole, and external compressed air is connected through the first air inlet hole and the second air inlet hole.

6. A bearing detection clamping mechanism according to claim 1, characterized in that: The screw rod (4) and the workbench (1) are in an inclined state.

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