Bearing groove center diameter measuring device

Abstract

The utility model relates to a bearing groove center diameter measuring device which comprises a first measuring foot, a second measuring foot, a flat plate, a box body, a bottom plate, a support, a spring piece and a dial indicator. The top of the box body is provided with a flat plate, the flat plate is slidably provided with a first measuring foot, the bottom of the box body is provided with a bottom plate, one end of a spring piece is connected with the bottom plate, the other end is connected with a support, the top surface of the support is slidably connected with a second measuring foot, the outer side of one side wall of the box body is provided with a dial indicator, and the detection end of the dial indicator abuts against one end of the support; according to the bearing groove center diameter measuring device, the groove center diameter detection precision is ensured, the efficiency is also ensured, and the bearing groove center diameter measuring device has the advantages of being easy to machine and assemble, free of environmental influence and convenient to use in a production field.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing, and in particular to a bearing groove center diameter measuring device. Background Technology

[0002] The machining of the raceway in thrust ball bearings requires the inspection of the raceway center diameter to ensure it conforms to the design drawings. The following methods are currently primarily used to inspect the raceway center diameter of thrust ball bearing washers:

[0003] Sample measurement method: The center diameter of the channel is used to make a qualitative judgment by scratching or light gap method, but it is greatly affected by human factors, especially the judgment results are significantly different when the limit value is reached.

[0004] Projector measurement method: The center diameter of the channel is calculated by projecting the distance between adjacent steel balls after fixing three steel balls, but the repeatability is poor and the efficiency is low.

[0005] Contour meter measurement method: By determining the highest and lowest points of the channel, the two arc contours at that location are measured, and the distance between the centers is calculated to obtain the center diameter of the channel. Advantages: high accuracy; Disadvantages: error increases when there is channel shape error or eccentricity.

[0006] Three-coordinate measurement method: Measure the center of multiple channel arcs, fit the center, and calculate the channel center diameter. Advantages: highest accuracy, can eliminate the influence of eccentricity; Disadvantages: complex equipment, low measurement efficiency.

[0007] Existing methods for measuring the center diameter of channels are no longer sufficient to meet production needs, and there is an urgent need to design a new measuring tool to quickly and accurately measure the dimensions of the center diameter of channels. Utility Model Content

[0008] To address the issue that a large amount of testing data is required on the production site, and that coordinate measuring machines, profilometers, and projectors cannot meet the needs, while template measurement methods are greatly affected by human factors, especially when determining extreme values, a bearing groove center diameter measuring device is proposed.

[0009] The technical solution of this utility model is as follows: a bearing groove center diameter measuring device, including a first measuring foot, a second measuring foot, a plate, a housing, a base plate, a bracket, a spring plate, and a dial indicator; a plate is provided on the top of the housing, the first measuring foot is slidably mounted on the plate, a base plate is provided at the bottom of the housing, one end of the spring plate is connected to the base plate, and the other end is connected to the bracket, the top surface of the bracket is slidably connected to the second measuring foot, and a dial indicator is provided on the outer side of one side wall of the housing, with the probe end of the dial indicator abutting against one end of the bracket.

[0010] Preferably, the plate has two T-slots and one waist-shaped hole, and the included angle between the central axes of the T-slots and the waist-shaped hole is 120°.

[0011] Preferably, the T-slot is provided with a slider, which is locked in the T-slot by a nut, and the lower part of the first measuring foot is a screw, which is connected to the slider.

[0012] Preferably, the second measuring foot passes through the waist-shaped hole and is slidably connected to the bracket.

[0013] Preferably, the top of the first and second measuring feet is provided with a steel ball, which contacts the groove of the workpiece being measured.

[0014] Preferably, the enclosure includes a front panel, a back panel, and side panels; the front panel and the back panel are arranged opposite to each other, and the side panels are connected between the front panel and the back panel.

[0015] Preferably, the outer side of the panel is provided with a clamp, which is stepped and connected to the panel. The end of the clamp away from the panel is provided with a through hole, through which the probe of the dial indicator passes and abuts against one end of the bracket.

[0016] Preferably, the top of the bracket is provided with a sliding groove, and the bottom of the second measuring foot is slidably disposed in the sliding groove and locked by a nut.

[0017] Preferably, the base plate is rectangular, with grooves on both sides, and one end of a spring sheet is connected to the inner side of the groove.

[0018] Preferably, the middle section of the spring sheet is provided with pressure plates on both sides to increase strength.

[0019] The beneficial effects of this utility model are as follows: This utility model provides a bearing groove center diameter measuring device, which ensures both accuracy and efficiency in groove center diameter detection. It also has the advantages of being easy to process, easy to assemble, unaffected by the environment, and convenient for use on the production site. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the bearing groove center diameter measuring device of this utility model;

[0021] Figure 2 This is a front view of the flat plate of this utility model;

[0022] Figure 3 This is a front view of the panel of this utility model;

[0023] Figure 4 This is a front view of the back panel of this utility model;

[0024] Figure 5 This is a front view of the side panel of this utility model;

[0025] Figure 6 This is a front view of the chuck of this utility model;

[0026] Figure 7 This is a front view of the bracket of this utility model;

[0027] Figure 8 This is a side view of the bracket of this utility model;

[0028] Figure 9 This is a front view of the base plate of this utility model;

[0029] Figure 10 This is a front view of the spring sheet of this utility model.

[0030] The component names corresponding to the various reference numerals in the diagram are as follows:

[0031] 1. First measuring foot; 2. Second measuring foot; 3. Flat plate; 31. T-slot; 32. Waist-shaped hole; 33. Slider; 4. Housing; 41. Front panel; 42. Back plate; 43. Side plate; 44. Clamp; 441. Perforation; 5. Base plate; 51. Groove; 6. Bracket; 61. Slide groove; 7. Spring plate; 71. Pressure plate; 8. Dial indicator. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0033] refer to Figure 1 As shown in the embodiment of this application, a bearing groove center diameter measuring device is disclosed, including a first measuring foot 1, a second measuring foot 2, a plate 3, a housing 4, a base plate 5, a bracket 6, a spring plate 7, and a dial indicator 8. The top of the housing 4 is provided with a plate 3, and two first measuring feet 1 are slidably provided on the plate 3. The bottom of the housing 4 is provided with a base plate 5. In this embodiment, two spring plates 7 are provided. One end of the spring plate 7 is connected to the base plate 5, and the other end is connected to the bracket 6. The top surface of the bracket 6 is slidably connected to the second measuring foot 2. A dial indicator 8 is provided on the outer side of one side wall of the housing 4, and the probe end of the dial indicator 8 abuts against one end of the bracket 6.

[0034] refer to Figure 1 , 2 As shown, the plate 3 is rectangular, with countersunk holes near the four corners, which are bolted to the housing 4. The plate 3 has two T-slots 31 and one oblong hole 32. The angle between the central axes of the T-slots 31 and the oblong hole 32 is 120°. Each of the two T-slots 31 has a slider 33, which is locked in the T-slots 31 with a nut. The top of the slider 33 is connected to the bottom of the first measuring foot 1. The top of the first measuring foot 1 is a steel ball, which contacts the groove of the workpiece being measured. The diameter of the steel ball is determined according to the upper limit of the groove curvature. The lower part of the first measuring foot 1 is a screw, which is threaded to the slider 33. The height can be adjusted by rotating the screw.

[0035] The second measuring foot 2 is provided with a steel ball at the top, which contacts the groove of the workpiece being measured. The diameter of the steel ball is determined according to the upper limit of the curvature of the groove. The second measuring foot 2 passes through the waist-shaped hole 32 and is slidably connected to the bracket 6, so the second measuring foot 2 can slide in the waist-shaped hole 32.

[0036] refer to Figure 3 , 4 As shown in Figure 5, the box 4 is a cuboid and includes a front panel 41, a back panel 42, and side panels 43. The front panel 41 and the back panel 42 are arranged opposite to each other, and two side panels 43 are connected between the front panel 41 and the back panel 42 to form the box 4.

[0037] refer to Figure 1 , 6 As shown, a clamp 44 is provided on the outer side of the panel 41. The clamp 44 is stepped and is connected to the panel 41 by bolts. A through hole 441 is provided at the end of the clamp 44 away from the panel 41. The probe end of the dial gauge 8 passes through the through hole 441 and abuts against one end of the bracket 6.

[0038] refer to Figure 1 , 7 As shown in Figure 8, the top of the bracket 6 is provided with a sliding groove 61, and the bottom of the second measuring foot 2 is slidably disposed in the sliding groove 61 and locked by a nut. The probe end of the dial indicator 8 abuts against one end of the sliding groove 61.

[0039] refer to Figure 1 , 9 As shown, the base plate 5 is rectangular, with countersunk holes near the four corners, through which it is bolted to the box body 4.

[0040] refer to Figure 1 , 10 As shown, the base plate 5 has grooves 51 on both sides. The inner side of the grooves 51 is connected to one end of two spring plates 7 by bolts, and the other end of the spring plates 7 is connected to both ends of the bracket 6 by bolts. Pressure plates 71 are provided on both sides of the middle section of the spring plates 7 to improve strength.

[0041] Specific operating procedure: Install dial indicator 8 into chuck 44, with the second measuring leg 2 contacting bracket 6, causing the pointer to rotate. Select and install measuring legs that match the workpiece groove, adjust the height of the measuring leg screws to ensure the steel balls at the top of the measuring legs are at the same height, and adjust the slider distance to ensure the measuring legs are evenly distributed. Prepare a standard part with a groove center diameter of A. Place the standard part on the measuring leg from top to bottom, allowing the steel balls at the top of the measuring leg to fall into the groove, and push downwards with force. The second measuring leg 2 will displace, causing bracket 6 to swing, resulting in dial indicator 8 rotating. Read the value B of dial indicator 8. Measure the value C of the workpiece using the same method. The measured groove center diameter of the workpiece = A + (CB).

[0042] The beneficial effects are as follows: This utility model provides a bearing groove center diameter measuring device, which ensures both accuracy and efficiency in groove center diameter detection. It also has the advantages of being easy to process and assemble, unaffected by the environment, and convenient for use on the production site.

[0043] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A bearing groove center diameter measuring device characterized by, The utility model provides a kind of measuring device for the channel of workpiece, including first measuring foot (1), second measuring foot (2), flat plate (3), box (4), bottom plate (5), support (6), spring leaf (7), dial gauge (8);Box (4) top is equipped with flat plate (3), flat plate (3) is equipped with first measuring foot (1) slidingly, box (4) bottom is equipped with bottom plate (5), spring leaf (7) one end is connected bottom plate (5), the other end is connected support (6), the top surface of support (6) is slidingly connected second measuring foot (2), the outside of one side wall of box (4) is equipped with dial gauge (8), and the detection end of dial gauge (8) is abutted with one end of support (6).

2. The bearing groove center diameter measuring device of claim 1, wherein, The flat plate (3) is equipped with two T-shaped grooves (31) and a waist-shaped hole (32), and the included angle between the central axes of the T-shaped grooves (31) and the waist-shaped hole (32) is 120°.

3. The bearing groove center diameter measuring apparatus of claim 2 wherein, The T-shaped groove (31) is equipped with a sliding block (33), and the sliding block (33) is locked in the T-shaped groove (31) by a nut. The lower part of the first measuring foot (1) is a screw rod, which is connected with the sliding block (33) through the screw rod.

4. The bearing groove center diameter measuring apparatus of claim 3 wherein, The second measuring foot (2) is slidingly connected with the support (6) through the waist-shaped hole (32).

5. The bearing groove center diameter measuring apparatus of claim 4 wherein, The first measuring foot (1) and the second measuring foot (2) are equipped with steel balls at the top, which are in contact with the channel of the measured workpiece.

6. The bearing groove center diameter measuring apparatus of claim 1 wherein, The box (4) includes a face plate (41), a back plate (42), and a side plate (43). The face plate (41) and the back plate (42) are oppositely arranged, and the side plate (43) is connected between the face plate (41) and the back plate (42).

7. The bearing groove center diameter measuring apparatus of claim 6 wherein, The outside of the face plate (41) is equipped with a chuck (44), which is in the shape of a ladder. The chuck (44) is connected with the face plate (41), and the end of the chuck (44) away from the face plate (41) is equipped with a perforation (441). The detection end of the dial gauge (8) is abutted with one end of the support (6) through the perforation (441).

8. The bearing groove center diameter measuring apparatus of claim 1 wherein, The top of the support (6) is equipped with a sliding groove (61), and the bottom of the second measuring foot (2) is slidingly arranged in the sliding groove (61) and locked by a nut.

9. The bearing groove center diameter measuring apparatus of claim 1 wherein, The bottom plate (5) is in the shape of a rectangle, and the two sides of the bottom plate (5) are equipped with grooves (51). The inner side of the groove (51) is connected with one end of the spring leaf (7).

10. The bearing groove center diameter measuring device of claim 1, wherein, The middle section of the spring leaf (7) is equipped with strength-improving pressing plates (71) on both sides.

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