High-precision small bearing flatness detection device

Abstract

The utility model discloses a high-precision small bearing flatness detection device, which belongs to the technical field of bearing detection and comprises a bottom plate. A positioning pin for limiting the bearing is fixedly mounted at the top of the right side wall of the first fixing block; the upper end of the positioning pin is provided with a detection assembly used for detecting the diameter and flatness of the bearing outer ring. The lower end of the positioning pin is provided with a floating type driving mechanism which is used for driving the bearing to rotate on the positioning pin so as to cooperate with the detection assembly to carry out detection operation, the floating type driving mechanism is arranged on the bottom plate in a manner of moving up and down, and the second fixing block is provided with a control mechanism. Through the mode, a detector applies force to the control mechanism, so that the control mechanism pushes the floating type driving mechanism to vertically move upwards to abut against the bearing, the floating type driving mechanism drives the bearing to rotate on the positioning pin, and rapid detection of the diameter and flatness of the outer ring of the bearing is realized through the detection assembly; the device is simple in structure, low in cost, easy to debug and high in detection precision.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing detection, in particular to a high-precision small bearing flatness detection device. Background Art

[0002] A bearing is a mechanical component used to support rotation. Before leaving the factory, the bearing needs to undergo multiple tests such as size inspection, protrusion inspection, and temperature inspection.

[0003] Chinese patent CN114608440B discloses a bearing outer surface flatness detection device and detection method, including a control device, a detection device and a rotating device; wherein the control device is connected to the detection device and the rotating device respectively; the detection device is arranged adjacent to the rotating device; the detection device includes a sliding part, a length detection part and a fixed plate, and the detection device can be tightly attached to the bearing on the rotating device so that the concave and convex changes on the outer surface of the bearing can be converted into relative movement of the sliding part and the fixed plate in the detection device, thereby realizing accurate detection of the bearing surface flatness. However, the miniature bearings are small in size, and it is inconvenient for the detection personnel to take the miniature bearings and place them on the rotating device, which is not conducive to the continuous detection requirements of the miniature bearings.

[0004] Based on this, the utility model designs a high-precision small bearing flatness detection device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a high-precision small bearing flatness detection device.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A high-precision small bearing flatness detection device includes a base plate;

[0008] A first fixing block and a second fixing block are fixedly installed on the top of the bottom plate, and the second fixing block is located in front of the first fixing block;

[0009] A positioning pin for limiting the bearing is fixedly installed on the top of the right side wall of the first fixing block;

[0010] The upper end of the positioning pin is provided with a detection component for detecting the diameter and flatness of the bearing outer ring;

[0011] The lower end of the positioning pin is provided with a floating drive mechanism for driving the bearing to rotate on the positioning pin to cooperate with the detection component to perform the detection operation, and the floating drive mechanism is arranged on the bottom plate so as to be movable up and down.

[0012] The second fixed block is provided with a control mechanism for controlling the floating drive mechanism to move upward and abut against the bearing so that the floating drive mechanism drives the bearing to rotate.

[0013] Furthermore, the floating drive mechanism includes a U-shaped frame, a micro motor, a driving wheel, a driven wheel, a vertical limit assembly and a floating assembly. A vertical limit assembly for limiting the vertical movement of the U-shaped frame is provided between the lower end of the U-shaped frame and the base plate. The driving wheel is rotatably mounted on the inner side of the U-shaped frame through a bearing; the micro motor is fixedly mounted on the outer side of the U-shaped frame, and the output end of the micro motor is fixedly connected to the driving wheel; the driven wheel is rotatably mounted on the top of the U-shaped frame through a floating assembly; the driving wheel and the driven wheel are located directly below the positioning pin.

[0014] Furthermore, the floating assembly includes a sliding rod, a floating block and a spring. A sliding rod is fixedly installed on the left and right sides of the top of the U-shaped frame. The top of the sliding rod is slidably connected to the floating block. The driven wheel is rotatably installed on the inner side of the floating block through a bearing; the spring is sleeved on the outer side of the sliding rod, and the upper and lower ends of the spring are fixedly connected to the floating block and the U-shaped frame respectively.

[0015] Furthermore, the vertical movement limiting assembly includes a guide rod and a slide groove. A guide rod is fixedly installed on the left and right sides of the bottom end of the U-shaped frame, and a slide groove is provided on the bottom plate to be slidingly connected to the guide rod.

[0016] Furthermore, the control mechanism includes a drive plate, a rotating shaft and a shift block. The middle part of the drive plate is fixedly installed with a rotating shaft, and the rotating shaft is rotatably connected to the right wall of the second fixed block through a bearing; one end of the drive plate is located between the U-shaped frame and the base plate, and the other end of the drive plate is fixedly installed with a shift block.

[0017] Furthermore, the detection component includes a bracket, a measuring table and a probe. The lower end of the bracket is fixedly connected to the base plate, and the upper end of the bracket is fixedly installed with a measuring table; the probe of the measuring table is located directly above the positioning pin, and the probe is used to contact the bearing sleeved on the positioning pin.

[0018] Furthermore, a sliding sleeve is rotatably mounted on the outer side of the shift block.

[0019] Furthermore, the driving wheel and the driven wheel are rubber wheels with greater friction.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The bearing is sleeved on the positioning pin so that the bearing contacts the detection assembly, and then the detection personnel applies force to the control mechanism, so that the control mechanism pushes the floating drive mechanism to move vertically upward until the floating drive mechanism and the bearing are against each other, so that the floating drive mechanism drives the bearing to rotate on the positioning pin, and realizes rapid detection of the outer ring diameter and flatness of the bearing through the detection assembly; the present invention has a simple structure and low cost, and is more convenient for detecting small and micro bearings. By replacing positioning pins of different specifications and cooperating with the floating drive mechanism, the detection requirements of different bearings can be met, and the detection personnel can freely control the rotation state of the bearing through the control mechanism, which effectively improves the detection efficiency and is conducive to the continuous detection of small and micro bearings.

[0021] 2. In the natural state, the U-shaped frame presses down the drive plate to make the other end of the drive plate tilt up. The inspector pulls down the drive plate through the shift block to make the drive plate rotate around the axis and push the U-shaped frame upward. At this time, the upper end of the bearing contacts the probe and the lower end contacts the rotating driven wheel. The rotating bearing cooperates with the probe to detect the outer diameter and flatness of the bearing. After releasing the shift block, the drive plate moves down and resets under the action of the gravity of the U-shaped frame, which facilitates the inspector to perform connection inspection on the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0023] Figure 1 This is a three-dimensional diagram of a high-precision small bearing flatness detection device of the utility model;

[0024] Figure 2 This is a right view of a high-precision small bearing flatness detection device of the utility model;

[0025] Figure 3 This is a rear view of a high-precision small bearing flatness detection device of the utility model;

[0026] Figure 4 This is a partial stereoscopic diagram of a high-precision small bearing flatness detection device of the present utility model.

[0027] Figure 5 It is a stereoscopic diagram of some embodiments of the present invention.

[0028] The numbers in the figure represent:

[0029] 1. Base plate; 2. First fixed block; 3. Second fixed block; 4. Positioning pin; 5. Floating drive mechanism; 51. U-shaped frame; 52. Micro motor; 53. Driving wheel; 54. Driven wheel; 55. Guide rod; 56. Slide groove; 57. Slide rod; 58. Floating block; 59. Spring; 6. Control mechanism; 61. Driving plate; 62. Rotating shaft; 63. Shift block; 64. Slide sleeve; 7. Detection component; 71. Bracket; 72. Measuring meter; 73. Probe; 8. Bearing. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-4 , a high-precision small bearing flatness detection device, comprising a base plate 1;

[0032] A first fixing block 2 and a second fixing block 3 are fixedly installed on the top of the bottom plate 1, and the second fixing block 3 is located in front of the first fixing block 2;

[0033] A positioning pin 4 for limiting the position of the bearing 8 is fixedly installed on the top of the right side wall of the first fixing block 2;

[0034] The upper end of the positioning pin 4 is provided with a detection component 7 for detecting the outer ring diameter and flatness of the bearing 8;

[0035] The lower end of the positioning pin 4 is provided with a floating drive mechanism 5 for driving the bearing 8 to rotate on the positioning pin 4 to cooperate with the detection component 7 to perform the detection operation, and the floating drive mechanism 5 is arranged on the base plate 1 so as to be movable up and down.

[0036] The second fixed block 3 is provided with a control mechanism 6 for controlling the floating drive mechanism 5 to move upward and abut against the bearing 8 so that the floating drive mechanism 5 drives the bearing 8 to rotate.

[0037] In the present invention, the bearing 8 is sleeved on the positioning pin 4 so that the bearing 8 contacts the detection assembly 7. Then, the detection personnel applies force to the control mechanism 6, causing the control mechanism 6 to push the floating drive mechanism 5 to move vertically upward until the floating drive mechanism 5 and the bearing 8 abut against each other, so that the floating drive mechanism 5 drives the bearing 8 to rotate on the positioning pin 4, and the outer ring diameter and flatness of the bearing 8 are quickly detected by the detection assembly 7.

[0038] The utility model has a simple structure and low cost, and is more convenient for detecting small and micro bearings. By replacing the positioning pins 4 of different specifications and cooperating with the floating drive mechanism 5, the detection requirements of different bearings can be met, and the detection personnel can freely control the rotation state of the bearing 8 through the control mechanism 6, which effectively improves the detection efficiency and is conducive to the continuous detection operation of small and micro bearings.

[0039] The floating drive mechanism 5 includes a U-shaped frame 51, a micro motor 52, a driving wheel 53, a driven wheel 54, a vertical limit assembly and a floating assembly. A vertical limit assembly for limiting the vertical movement of the U-shaped frame 51 is provided between the lower end of the U-shaped frame 51 and the base plate 1. The driving wheel 53 is rotatably mounted on the inner side of the U-shaped frame 51 through a bearing; the micro motor 52 is fixedly mounted on the outer side of the U-shaped frame 51, and the output end of the micro motor 52 is fixedly connected to the driving wheel 53; the driven wheel 54 is rotatably mounted on the top of the U-shaped frame 51 through a floating assembly; the driving wheel 53 and the driven wheel 54 are located directly below the positioning pin 4;

[0040] The floating assembly includes a slide bar 57, a floating block 58, and a spring 59. A slide bar 57 is fixedly mounted on the left and right sides of the top of the U-shaped frame 51. The top of the slide bar 57 is slidably connected to the floating block 58. The driven wheel 54 is rotatably mounted on the inner side of the floating block 58 through a bearing. The spring 59 is sleeved on the outer side of the slide bar 57. The upper and lower ends of the spring 59 are fixedly connected to the floating block 58 and the U-shaped frame 51 respectively.

[0041] The vertical limit assembly includes a guide rod 55 and a slide 56. A guide rod 55 is fixedly installed on the left and right sides of the bottom end of the U-shaped frame 51. The slide 56 is provided on the bottom plate 1 and is slidably connected to the guide rod 55.

[0042] The driving wheel 53 and the driven wheel 54 are rubber wheels with greater friction.

[0043] In the present invention, the micro motor 52 drives the driving wheel 53 to rotate continuously. When the bearing 8 is sleeved on the positioning pin 4, the inspector drives the U-shaped frame 51 to move vertically upward under the limiting action of the guide rod 55 and the slide groove 56 through the control mechanism 6, so that the driven wheel 54 is against the bearing 8, and the driven wheel 54 slides down along the slide rod 57 through the floating block 58 until the driving wheel 53 contacts the driven wheel 54. After that, the driving wheel 53 drives the driven wheel 54 to rotate, and then drives the bearing 8 to rotate on the positioning pin 4, thereby cooperating with the inspection component 7 to perform outer diameter and flatness inspection on the bearing 8; after the inspection is completed, the inspector releases the control mechanism 6 so that the U-shaped frame 51 moves vertically downward and resets under the action of gravity and separates from the bearing 8, so that the bearing 8 can be smoothly removed from the positioning pin 4 by the inspector to continue to inspect the subsequent bearing 8.

[0044] The control mechanism 6 includes a drive plate 61, a rotating shaft 62, and a shift block 63. The rotating shaft 62 is fixedly installed in the middle of the drive plate 61, and the rotating shaft 62 is rotatably connected to the right wall of the second fixed block 3 through a bearing; one end of the drive plate 61 is located between the U-shaped frame 51 and the bottom plate 1, and the shift block 63 is fixedly installed at the other end of the drive plate 61;

[0045] The detection assembly 7 includes a bracket 71, a measuring gauge 72, and a probe 73. The lower end of the bracket 71 is fixedly connected to the base plate 1, and the upper end of the bracket 71 is fixedly mounted with the measuring gauge 72. The measuring gauge 72 adopts mature technology in the field, such as a micrometer. The probe 73 of the measuring gauge 72 is located directly above the positioning pin 4. The probe 73 is used to contact the bearing 8 sleeved on the positioning pin 4.

[0046] In the present invention, in a natural state, the U-shaped frame 51 presses down the driving plate 61 so that the other end of the driving plate 61 tilts up. The inspector pulls down the driving plate 61 through the shift block 63 so that the driving plate 61 rotates around the rotating shaft 62 to push the U-shaped frame 51 upward. At this time, the upper end of the bearing 8 contacts the probe 73 and the lower end abuts against the rotating driven wheel 54, so that the rotating bearing 8 cooperates with the probe 73 to detect the outer diameter and flatness of the bearing 8.

[0047] A sliding sleeve 64 is rotatably mounted on the outer side of the shifting block 63, which further facilitates the inspection personnel to shift the driving plate 61 to facilitate the inspection operation.

[0048] Example 2: In some embodiments, please refer to the accompanying drawings of the specification. Figure 5 An xy manual translation stage is provided on the base plate 1, and the first fixed block 2, the second fixed block 3, the floating drive mechanism 5 and the control mechanism 6 are arranged on the top of the xy manual translation stage, so that the position of the positioning pin 4 is adjusted through the xy manual platform so that the side head 73 contacts the bearing on the positioning pin 4 at an appropriate position.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-precision small bearing flatness detection device, comprising a base plate (1), characterized in that: A first fixing block (2) and a second fixing block (3) are fixedly mounted on the top of the bottom plate (1), and the second fixing block (3) is located in front of the first fixing block (2); A positioning pin (4) for limiting the position of the bearing (8) is fixedly installed on the top of the right side wall of the first fixed block (2); The upper end of the positioning pin (4) is provided with a detection component (7) for detecting the diameter and flatness of the outer ring of the bearing (8); The lower end of the positioning pin (4) is provided with a floating drive mechanism (5) for driving the bearing (8) to rotate on the positioning pin (4) to cooperate with the detection component (7) to perform a detection operation, and the floating drive mechanism (5) is arranged on the bottom plate (1) so as to be movable up and down. The second fixed block (3) is provided with a control mechanism (6) for controlling the floating drive mechanism (5) to move upward and abut against the bearing (8) so that the floating drive mechanism (5) drives the bearing (8) to rotate.

2. The high-precision small bearing flatness detection device according to claim 1, characterized in that: The floating drive mechanism (5) comprises a U-shaped frame (51), a micro motor (52), a driving wheel (53), a driven wheel (54), a vertical displacement limiting assembly and a floating assembly. A vertical displacement limiting assembly for limiting the vertical movement of the U-shaped frame (51) is provided between the lower end of the U-shaped frame (51) and the bottom plate (1). The driving wheel (53) is rotatably mounted on the inner side of the U-shaped frame (51) via a bearing. The micro motor (52) is fixedly mounted on the outer side of the U-shaped frame (51), and the output end of the micro motor (52) is fixedly connected to the driving wheel (53). The driven wheel (54) is rotatably mounted on the top of the U-shaped frame (51) via the floating assembly. The driving wheel (53) and the driven wheel (54) are located directly below the positioning pin (4).

3. The high-precision small bearing flatness detection device according to claim 2, characterized in that: The floating assembly includes a slide bar (57), a floating block (58) and a spring (59). A slide bar (57) is fixedly installed on the left and right sides of the top of the U-shaped frame (51). The top of the slide bar (57) is slidably connected to the floating block (58). The driven wheel (54) is rotatably installed on the inner side of the floating block (58) through a bearing. The spring (59) is sleeved on the outer side of the slide bar (57). The upper and lower ends of the spring (59) are fixedly connected to the floating block (58) and the U-shaped frame (51) respectively.

4. The high-precision small bearing flatness detection device according to claim 3, characterized in that: The vertical displacement limiting assembly comprises a guide rod (55) and a slide groove (56). The guide rods (55) are fixedly mounted on the left and right sides of the bottom end of the U-shaped frame (51). The slide groove (56) is provided on the bottom plate (1) and is connected to the guide rods (55) in a limited sliding manner.

5. The high-precision small bearing flatness detection device according to claim 4, characterized in that: The control mechanism (6) comprises a driving plate (61), a rotating shaft (62) and a shifting block (63); the rotating shaft (62) is fixedly mounted in the middle of the driving plate (61); the rotating shaft (62) is rotatably connected to the right wall of the second fixed block (3) via a bearing; one end of the driving plate (61) is located between the U-shaped frame (51) and the bottom plate (1); the shifting block (63) is fixedly mounted on the other end of the driving plate (61).

6. The high-precision small bearing flatness detection device according to claim 5, characterized in that: The detection assembly (7) comprises a bracket (71), a measuring gauge (72) and a probe (73); the lower end of the bracket (71) is fixedly connected to the base plate (1); the upper end of the bracket (71) is fixedly mounted with the measuring gauge (72); the probe (73) of the measuring gauge (72) is located directly above the positioning pin (4); and the probe (73) is used to contact a bearing (8) sleeved on the positioning pin (4).

7. The high-precision small bearing flatness detection device according to claim 6, characterized in that: The driving wheel (53) and the driven wheel (54) are rubber wheels.

8. The high-precision small bearing flatness detection device according to claim 7, characterized in that: A sliding sleeve (64) is rotatably mounted on the outer side of the shifting block (63).

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