Bearing ball groove coaxiality measuring mechanism

Abstract

The utility model discloses a bearing ball groove coaxiality measuring mechanism, which comprises a base, a measuring mechanism arranged on the base, a to-be-measured bearing fixing mechanism and a micrometer gauge, the measuring mechanism comprises a linear guide rail arranged on the base, a measuring pedestal arranged on the linear guide rail in a sliding mode, a measuring end fixing block arranged on the measuring pedestal and a measuring rod rotationally connected with the measuring end fixing block through a rotating shaft, and the front end of the measuring rod extends into an internal thread channel of the bearing to be measured. The measuring pedestal is provided with an elastic member which abuts against the measuring rod, and pressure which contacts with the detection end of the micrometer gauge is applied to the measuring rod, and the coaxiality measuring mechanism for measuring the ball groove of the bearing can detect whether the central axis of an internal thread channel and the central axis of the outer diameter of the bearing are concentric or not on a production line.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing ring turning production equipment, in particular to a coaxiality measuring mechanism for measuring a bearing ball groove. Background Art

[0002] During the turning production process of bearing rings, there are many methods for detecting the concentricity between the internal thread groove and the outer diameter of the bearing. Some automatic detection devices are large in volume, complex in structure, and high in cost. It is inevitable for workers to have dimensional deviation when positioning and measuring, the detection accuracy is not high, and it consumes manpower and material resources, affecting the production progress. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a coaxiality measuring mechanism for measuring a bearing ball groove, which realizes the semi-automatic detection of the internal thread groove and the outer diameter wall thickness of the bearing, and can detect the error value between the central axis of the inner diameter of the internal thread groove and the central axis of the bearing outer diameter on the production line. It has the advantages of low material positioning requirements, high detection accuracy, fast detection speed, flexible detection range setting, and quick switching of detection models.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is a coaxiality measuring mechanism for measuring a bearing ball groove, which is used to realize the detection of the internal thread groove and the outer diameter wall thickness of the bearing, and includes: a base, a measuring mechanism arranged on the base, a bearing to be measured fixing mechanism, and a micrometer gauge. The measuring mechanism includes a linear guide arranged on the base, a measuring table seat slidably arranged on the linear guide, a measuring end fixing block arranged on the measuring table seat, and a measuring rod rotatably connected to the measuring end fixing block through a rotating shaft. The front end of the measuring rod extends into the internal thread groove of the bearing to be measured. A elastic member is arranged on the measuring table seat and abuts against the measuring rod, and applies a pressure to the measuring rod to contact the detection end of the micrometer gauge.

[0005] The bearing to be measured fixing mechanism includes a "V"-shaped clamping seat slidably arranged on the base for placing the bearing to be measured, an adjusting handwheel clamped to the other end of the bearing to be measured, a bearing fixing mechanism arranged on the "V"-shaped clamping seat, and a lateral adjusting mechanism arranged on the base.

[0006] In a preferred embodiment of the utility model, the bearing fixing mechanism includes two groups of threaded rods symmetrically arranged on the top surface of the "V"-shaped clamping seat, a pressing block threadedly connected to the two groups of threaded rods, and an adjusting nut sleeved on the threaded rod. A compression spring is further arranged between the pressing block and the adjusting nut.

[0007] In a preferred embodiment of the utility model, two groups of pulleys in contact with the bearing to be measured are rotatably arranged on the pressing block.

[0008] In a preferred embodiment of the present utility model, a handwheel fixing seat is provided on the side of the "V"-shaped card seat, and the adjusting handwheel is rotatably arranged on the handwheel fixing seat.

[0009] In a preferred embodiment of the present utility model, a chute is provided on the base, and the "V"-shaped card seat is arranged in the chute.

[0010] In a preferred embodiment of the present utility model, a fixed pressing block for pressing the bottom edge of the "V"-shaped card seat is further provided in the chute.

[0011] In a preferred embodiment of the present utility model, the lateral adjustment mechanism includes an adjustment seat provided on the base and an adjustment screw provided on the adjustment seat, and the front end of the adjustment screw is connected to the side of the "V"-shaped card seat.

[0012] The beneficial effects of the present utility model are as follows: The coaxiality measuring mechanism for bearing measurement ball grooves of the present utility model realizes the semi-automatic detection of the inner thread groove and the outer diameter wall thickness of the bearing, and can detect whether the central axis of the inner diameter of the inner thread groove is coaxial with the central axis of the outer diameter of the bearing on the production line, or if it is not coaxial, it can detect whether the existing error value is within the specified range. It has the advantages of low material positioning requirements, high detection accuracy, fast detection speed, flexible detection range setting, and fast switching of detection models. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:

[0014] Figure 1 is the side view of the coaxiality measuring mechanism for bearing measurement ball grooves of the present utility model;

[0015] Figure 2 The side view of the bearing fixing mechanism to be measured in the present utility model. Detailed Embodiments

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0017] Please refer to Figure 1-2, the utility model relates to a coaxiality measuring mechanism for bearing measurement ball grooves, which is used to realize the detection of the inner thread groove and the outer diameter wall thickness of the bearing, including: a base 1, a measuring mechanism arranged on the base, a fixing mechanism for the bearing to be measured, and a micrometer 2. Specifically, the measuring mechanism includes a linear guide rail 3 arranged on the base, a measuring table base 4 slidably arranged on the linear guide rail, a measuring end fixing block 5 arranged on the measuring table base, and a measuring rod 6 rotatably connected to the measuring end fixing block through a rotating shaft. A measuring terminal 7 is arranged at the front end of the measuring rod and extends into the inner thread groove of the bearing to be measured. The depth of the measurement of the measuring rod is adjusted by the linear guide rail. A ball bearing is arranged in the measuring end fixing block. The rotating shaft is installed on the measuring rod and connected to the inner ring of the ball bearing. The measuring rod can swing up and down with the rotating shaft as the fulcrum, and there will be no large deviation during measurement, which can better locate the detection position.

[0018] Specifically, the micrometer is fixed to the measuring table base with a connecting rod 21, which can reduce the error in measurement. An elastic member 22 abutted against the measuring rod is arranged on the measuring table base, which can be a spring. The spring applies a pressure to the measuring rod to contact the detection end of the micrometer. The measuring rod swings up and down with the rotating shaft as the fulcrum. An elastic measuring block 19 can be installed at the position corresponding to the detection end of the micrometer on the measuring rod to make the contact between the two better. The pushing pressure of the spring can better make the measuring terminal close to the thread groove, making the measurement accuracy higher. When the measuring terminal measures, rotate the adjusting handwheel to select ten to twenty groups of measurement points in the same circle of the thread groove for measurement. Observe and record the measured values on the micrometer, and it can be detected whether the inner diameter of the thread groove is a perfect circle, that is, it can be detected whether the central axis of the inner diameter of the inner thread groove is coaxial with the central axis of the bearing outer diameter, or if it is not coaxial, whether the existing error value is within the specified range, so as to detect whether the bearing is qualified.

[0019] Specifically, the fixing mechanism for the bearing to be measured includes a "V"-shaped clamping seat 8 slidably arranged on the base, an adjusting handwheel 9 clamped to the other end of the bearing to be measured, a bearing fixing mechanism arranged on the "V"-shaped clamping seat, and a lateral adjusting mechanism arranged on the base. Among them, a V-shaped groove is opened at the upper end of the "V"-shaped clamping seat for placing the bearing to be measured, which is more convenient to adjust and replace bearings of different models. Further, the bearing fixing mechanism includes two groups of threaded rods 10 symmetrically arranged on the top surface of the "V"-shaped clamping seat, a pressing block 11 threadedly connected to the two groups of threaded rods, and adjusting nuts 12 sleeved on the threaded rods. A compression spring 13 is also arranged between the pressing block and the adjusting nut. Two groups of pulleys 14 in contact with the bearing to be measured are rotatably arranged on the pressing block. The rolling contact facilitates the rotation of the bearing during detection. The compression spring can better fix the detected bearing while avoiding clamping damage to the detected bearing.

[0020] Specifically, a handwheel fixing seat 15 is provided on the side of the "V"-shaped card seat. The adjusting handwheel is rotatably installed on the handwheel fixing seat and is clamped with the bearing to be detected. The bearing is accurately positioned during detection and abrasion occurs during re-rotation. Rotating the handwheel and the handwheel fixing seat can effectively ensure the accurate position of the bearing during measurement and facilitate rotation, and also play a role in fixing the product to a certain extent.

[0021] Specifically, a chute is provided on the base, and the "V"-shaped card seat is arranged in the chute. A fixed pressing block 16 for pressing the bottom edge of the "V"-shaped card seat is also arranged in the chute. The lateral adjustment mechanism includes an adjustment seat 17 arranged on the base and an adjustment screw 18 arranged on the adjustment seat. The front end of the adjustment screw is connected to the side of the "V"-shaped card seat. The adjustment screw can be rotated according to production requirements to push the "V"-shaped card seat to move laterally, so as to facilitate the alignment of the bearing 20 to be detected with the measuring rod. After the alignment is completed, the "V"-shaped card seat can be fixed by the fixed pressing block and bolts, which is stable and reliable.

[0022] The beneficial effects of the present utility model are as follows: It realizes the semi-automatic detection of the internal thread groove and the outer diameter wall thickness of the bearing, and can detect whether the central axis of the inner diameter of the internal thread groove is coaxial with the central axis of the outer diameter of the bearing on the production line, or if they are not coaxial, it can detect whether the existing error value is within the specified range. It has the advantages of low material positioning requirements, high detection accuracy, fast detection speed, flexible detection range setting, and rapid switching of detection models.

[0023] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A bearing measurement ball groove coaxiality measurement mechanism for realizing the detection of the inner thread groove and the outer diameter wall thickness of a bearing, characterized in that, Comprising: A base, a measuring mechanism disposed on the base, a bearing to be measured fixing mechanism, and a micrometer. The measuring mechanism includes a linear guide disposed on the base, a measuring pedestal slidably disposed on the linear guide, a measuring end fixing block disposed on the measuring pedestal, and a measuring rod rotatably connected to the measuring end fixing block through a rotating shaft. The front end of the measuring rod extends into the internal thread groove of the bearing to be measured. A resilient member is disposed on the measuring pedestal and abuts against the measuring rod, and applies a pressure to the measuring rod to contact the detection end of the micrometer. The bearing to be measured fixing mechanism includes a "V"-shaped clamping seat slidably disposed on the base for placing the bearing to be measured, an adjusting handwheel clamped to the other end of the bearing to be measured, a bearing fixing mechanism disposed on the "V"-shaped clamping seat, and a lateral adjusting mechanism disposed on the base.

2. The coaxiality measuring mechanism for measuring the ball groove of a bearing according to claim 1, wherein, The bearing fixing mechanism includes two groups of threaded rods symmetrically disposed on the top surface of the "V"-shaped clamping seat, a pressing block threadedly connected to the two groups of threaded rods, and adjusting nuts sleeved on the threaded rods. A compression spring is further disposed between the pressing block and the adjusting nuts.

3. A coaxiality measuring mechanism for bearing measurement ball grooves according to claim 2, characterized in that, Two groups of pulleys in contact with the bearing to be measured are rotatably disposed on the pressing block.

4. A coaxiality measuring mechanism for measuring the ball groove of a bearing according to claim 1, characterized in that, A handwheel fixing seat is disposed on the side of the "V"-shaped clamping seat, and the adjusting handwheel is rotatably disposed on the handwheel fixing seat.

5. A coaxiality measuring mechanism for measuring the ball groove of a bearing according to claim 1, characterized in that A chute is disposed on the base, and the "V"-shaped clamping seat is disposed in the chute.

6. A coaxiality measuring mechanism for measuring the ball groove of a bearing according to claim 5, characterized in that A fixed pressing block for pressing the bottom edge of the "V"-shaped clamping seat is further disposed in the chute.

7. A coaxiality measuring mechanism for measuring the ball groove of a bearing according to claim 1, characterized in that The lateral adjusting mechanism includes an adjusting seat disposed on the base and an adjusting screw disposed on the adjusting seat. The front end of the adjusting screw is connected to the side of the "V"-shaped clamping seat.

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