Contourgraph for detecting diameter of pressure point of inner ring of angular contact ball bearing

Abstract

The utility model discloses a contourgraph used for angular contact ball bearing inner ring pressure point diameter detection, comprising a work platform and a measuring bench arranged on the work platform, the measuring bench is movably provided with a probe, the work platform is also provided with a detection bench, the detection bench is provided with an overturn groove, and the overturn groove is provided with a groove. A test seat is arranged in the overturning groove, driving grooves are formed in the two side walls of the overturning groove respectively, test shafts are arranged on the two sides of the test seat respectively, the test shafts are rotationally connected with the inner wall of the overturning groove, driven gears are connected to the test shafts in a sleeving mode, and the driven gears are arranged in the corresponding driving grooves. A rack is slidably arranged in the driving groove and meshed with the driven gear, a driving motor is further arranged in the testing seat, the output end of the driving motor is meshed with the rack through a driving gear, a mounting through groove is formed in the testing seat, and a fastener is arranged in the mounting through groove. The device is simple in structure, can assist in overturning the tested bearing, and has a good use effect.

Description

Technical Field

[0001] The utility model relates to a profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing. Background Art

[0002] In the detection of the pressure point diameter of the inner ring of a three-point or four-point angular contact ball bearing, the pressure point is usually determined based on the use of physical close contact and contact. This operation will result in errors in human operation and perception, and such errors are often large. Therefore, in order to ensure the accuracy of the detection, a profiler is currently used to accurately depict the surface contour during the ring detection, and the measured image is marked and measured in correspondence with the design drawing to obtain the corresponding size of the pressure point position diameter. However, in these operations, the design flips the bearing, and this operation is currently mainly performed manually, which results in a certain error in the position of the bearing after flipping. When the subsequent tracks are merged, it is easy to offset, affecting the detection, and increasing the detection operation, reducing the detection efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing. The profilometer has a simple structure, can assist in turning over the test bearing, and has a good use effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing, comprising a working platform and a measuring platform arranged on the working platform, a probe movably arranged on the measuring platform, a detection platform for mounting a bearing to be tested is also arranged on the working platform, a flip groove is arranged on the detection platform, a test seat is arranged in the flip groove, driving grooves are respectively provided on both side walls of the flip groove, and test shafts are respectively provided on both sides of the test seat, the test shafts pass through the driving grooves and are rotatably connected to the inner walls of the flip grooves, a driven gear is sleeved on the test shaft, the driven gear is arranged in the corresponding driving groove, a rack is slidably arranged in the driving groove, the rack is meshed with the driven gear, a driving motor is also arranged in the test seat, the output end of the driving motor is meshed with the rack through the driving gear, an installation through groove is arranged on the test seat, and a fastener for fastening the bearing to be tested is circumferentially arranged in the installation through groove.

[0005] The beneficial effect of such setting is that after completing the detection of one end face of the test bearing, the test seat is driven to rotate by rotating the output end of the driving motor. The transmission here adopts the gear transmission method to ensure that the structure can rotate stably, and the structure is more stable and easy to control, and the rotation angle is accurate. After the flip is completed, after the probe detects the other end face, the two measurement track images are merged into the same file, and the two images are selected together. Through the "Advanced Profile Analysis" function, the software will merge the upper and lower tracks according to the absolute coordinate position of the measurement to obtain the upper and lower tracks of the material diameter surface, and then use the straight line track obtained by measuring the cylindrical surface in the track as the vertical reference line, enlarge the track image, find the inflection point between the channel and the end face through the point drawing function, connect the upper and lower lines, and get the end face line. According to the contact point position shown in the drawing and the distance between the two points, the distance between the pressure point and the small end face can be obtained. Mark a point on the end face as the origin, mark the positions of the two pressure points, and then measure the diameter of the pressure point position by marking the distance, which effectively improves the detection efficiency, does not require additional manual participation, and ensures the accuracy of the detection.

[0006] As a further configuration of the utility model, a fastening groove is provided on the inner wall of the installation groove, the fastener is provided with an expansion airbag, the expansion airbag is arranged in the fastening groove, and an air pump is connected to the air nozzle of the expansion airbag.

[0007] The beneficial effect of such arrangement is that such arrangement ensures that the bearing to be tested is installed stably, and at the same time is not prone to position floating, and will not cause position fluctuations due to flipping, and has a good use effect.

[0008] As a further configuration of the utility model, an arc-shaped permanent magnet is provided on the inner wall of the installation slot.

[0009] The beneficial effect of such arrangement is that such arrangement can better position the bearing to be tested, ensure the stability of the position, and facilitate the positioning of the bearing, thus having a good use effect.

[0010] As a further configuration of the utility model, the output end of the driving motor is equipped with two parallel racks, and the two racks are respectively meshed with the driven gear.

[0011] The beneficial effects of this arrangement are: this arrangement, through the double-row racks, makes the structure more stable, the transmission more reliable, reduces the change in the height direction during rotation, ensures the stability of the structure, ensures the consistency of subsequent data, and improves the stability of detection.

[0012] As a further configuration of the utility model, anti-slip pads are respectively provided on the four corner edges of the working platform, and a counterweight is provided on the bottom surface of the working table.

[0013] The beneficial effect of such arrangement is that such arrangement makes the overall structure more stable, and at the same time, the weight of the measuring platform can be neutralized by the counterweight, thereby ensuring the stability of the center of gravity of the overall structure and having a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the test seat position in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The utility model is used for the profilometer for detecting the pressure point diameter of the inner ring of the angular contact ball bearing. Figure 1 to Figure 2As shown: it includes a working platform 1 and a measuring platform 2 arranged on the working platform 1, a probe is movably arranged on the measuring platform 2, and a detection platform 3 for mounting a bearing to be tested is also arranged on the working platform 1, a flip groove 31 is arranged on the detection platform 3, a test seat 4 is arranged in the flip groove 31, driving grooves are respectively opened on the two side walls of the flip groove 31, and test shafts 41 are respectively arranged on both sides of the test seat 4, the test shaft 41 passes through the driving groove and is rotatably connected with the inner wall of the flip groove 31, a driven gear 42 is sleeved on the test shaft 41, the driven gear 42 is arranged in the corresponding driving groove, a rack 32 is slidably arranged in the driving groove, and the rack 32 is meshed with the driven gear 42, a driving motor 5 is also arranged in the test seat 4, and the output end of the driving motor 5 is meshed with the rack 32 through the driving gear, and an installation through groove is arranged on the test seat 4, and a fastener for fastening the bearing to be tested is circumferentially arranged in the installation through groove. The beneficial effect of such arrangement is that, after completing the detection of one end face of the test shaft 41, the test seat 4 is driven to rotate by rotating the output end of the driving motor 5. The transmission here adopts the gear transmission method to ensure that the structure can rotate stably, and the structure is more stable and easy to control, and the rotation angle is accurate. After the flip is completed, after the probe detects the other end face, the two measurement track images are merged into the same file, and the two images are selected together. Through the "advanced contour analysis" function, the software will merge the upper and lower tracks according to the absolute coordinate position of the measurement to obtain the upper and lower tracks of the material diameter surface, and then use the straight line track obtained by measuring the cylindrical surface in the track as the vertical reference line, enlarge the track image, find the inflection point between the channel and the end face through the point drawing function, connect the upper and lower lines, and get the end face line. According to the contact point position shown in the drawing and the distance between the two points, the distance between the pressure point and the small end face can be obtained. Mark a point on the end face as the origin, mark the two pressure point positions, and then measure the diameter of the pressure point position by marking the distance, which effectively improves the detection efficiency, does not require additional manual participation, and ensures the accuracy of the detection.

[0017] As a further configuration of this embodiment, the inner wall of the installation slot is provided with a fastening slot, the fastener is provided with a tensioning airbag 43, the tensioning airbag 43 is provided in the fastening slot, and an air pump is connected to the air nozzle of the tensioning airbag 43. The beneficial effect of this configuration is that it ensures that the installation of the bearing to be tested is stable, and at the same time, it is not easy to float in position, and the position will not fluctuate due to flipping, and has a good use effect.

[0018] As a further configuration of this embodiment, the inner wall of the installation slot is provided with an arc-shaped permanent magnet 44. The beneficial effect of this configuration is that the bearing to be tested can be better positioned, the position stability can be ensured, and the bearing can be positioned conveniently, which has a good use effect.

[0019] As a further configuration of this embodiment, the output end of the driving motor 5 is equipped with two parallel racks 32, and the two racks 32 are respectively meshed with the driven gear 42. The beneficial effects of this configuration are: in this configuration, through the double-row racks 32, the structure is more stable, the transmission is more reliable, the change in the height direction during the rotation process is reduced, the stability of the structure is ensured, the consistency of subsequent data is ensured, and the stability of the detection is improved.

[0020] As a further configuration of this embodiment, the four corners of the working platform 1 are respectively provided with anti-skid pads, and the bottom surface of the working platform is provided with a counterweight. The beneficial effect of this configuration is that the overall structure is more stable, and the weight of the measuring platform 2 can be neutralized with the counterweight, ensuring the stability of the center of gravity of the overall structure, and having a good use effect.

[0021] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A profiler for detecting the pressure point diameter of the inner ring of an angular contact ball bearing, comprising a working platform and a measuring platform arranged on the working platform, wherein a probe is movably arranged on the measuring platform, and characterized in that: The working platform is also provided with a testing table for installing the bearing to be tested, the testing table is provided with a flip groove, a test seat is provided in the flip groove, driving grooves are respectively opened on the two side walls of the flip groove, and test shafts are respectively provided on both sides of the test seat, the test shafts pass through the driving groove and are rotatably connected with the inner wall of the flip groove, a driven gear is sleeved on the test shaft, the driven gear is arranged in the corresponding driving groove, a rack is slidably arranged in the driving groove, the rack is meshed with the driven gear, a driving motor is also provided in the test seat, and the output end of the driving motor is meshed with the rack through the driving gear, an installation through groove is provided on the test seat, and the installation through groove is circumferentially provided with fasteners for fastening the bearing to be tested.

2. The profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing according to claim 1, characterized in that: The inner wall of the installation through groove is provided with a fastening groove, the fastener is provided with an expansion airbag, the expansion airbag is arranged in the fastening groove, and an air pump is connected to the air nozzle of the expansion airbag.

3. The profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing according to claim 2, characterized in that: The inner wall of the installation slot is provided with an arc-shaped permanent magnet.

4. The profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing according to claim 1, characterized in that: The output end of the driving motor is matched with two racks parallel to each other, and the two racks are respectively meshed with the driven gear.

5. The profilometer for detecting the pressure point diameter of the inner ring of an angular contact ball bearing according to claim 4, characterized in that: Anti-slip pads are respectively arranged at the edges of the four corners of the working platform, and a counterweight is arranged at the bottom surface of the working platform.

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