Bearing inner ring rolling hole measuring machine provided with guide device

Abstract

The invention provides a bearing inner ring rolling hole measuring machine provided with a guide device, and relates to the technical field of bearing detection, the bearing inner ring rolling hole measuring machine comprises a base, an electric conveying belt is arranged in the base, the upper end of the electric conveying belt is provided with a laser range finder and a measuring block, and the upper end of the electric conveying belt is further provided with a guide piece, a clamping piece and a driving mechanism; the guiding piece is composed of a first V-shaped plate and a second V-shaped plate. The clamping piece comprises a first clamping block and a second clamping block which are oppositely arranged front and back, and balls are rotationally arranged on the inner wall of the first clamping block and the inner wall of the second clamping block and used for being in rolling connection with ball grooves in the outer wall of the bearing inner ring. Due to the rolling characteristic of the balls, the positions of the balls and the outer surface of the bearing inner ring can be self-adaptively adjusted after the balls make contact with the ball grooves, so that the bearing inner ring can be more accurately positioned in the center positions of the first clamping block and the second clamping block, and the situation that the bearing inner ring deflects and is uneven in stress in the clamping process can be avoided; and the measurement accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing detection, and in particular to a bearing inner ring rolling hole measuring machine provided with a guide device. Background Art

[0002] The main reasons for measuring the hole distance of the inner ring of the bearing are as follows: Ensure installation accuracy: Accurately measuring the hole distance of the inner ring of the bearing can ensure the accuracy of its fit with the shaft. If the hole distance measurement is inaccurate, the fit between the inner ring of the bearing and the shaft may be too tight or too loose. Too tight fit will make installation difficult and may even cause damage to the inner ring of the bearing and the shaft; too loose fit will cause relative displacement of the bearing during operation, affecting the stability and accuracy of the equipment, aggravating wear and reducing the service life of the bearing. Ensure rotation accuracy: For some equipment with high requirements for rotation accuracy, such as machine tools, precision instruments, etc., the accuracy of the hole distance of the inner ring of the bearing directly affects the rotation accuracy of the shaft. Accurate hole distance can make the inner ring of the bearing bear the load evenly on the shaft, reduce the vibration and noise caused by uneven force, and thus ensure the smooth operation and processing accuracy of the equipment. Achieve interchangeability: In mass production and equipment maintenance, measuring the hole distance of the inner ring of the bearing helps to achieve the interchangeability of parts. When a bearing needs to be replaced, only when the hole distance and other dimensions meet the standard requirements can the new bearing be accurately installed in the equipment and work well with other related parts, reducing assembly problems caused by size differences and improving production efficiency and maintenance efficiency. Therefore, the measurement of the inner ring of the bearing is a very important production link, which is usually completed by the inner ring rolling hole measuring machine of the bearing.

[0003] For example, the prior art application number is CN202120054756.X, a bearing inner ring hole measuring machine, comprising a fixed seat, a measuring device, and a bearing fixing device, wherein the measuring device and the bearing fixing device are arranged on the upper surface of the fixed seat, and the measuring device comprises an electronic vernier caliper;

[0004] The above-mentioned prior art is known through actual use. It is mainly fixed by several clamping blocks against the outer surface of the inner ring of the bearing, and then two measuring blocks are rolled on the inner wall of the inner ring of the bearing to calculate the bore diameter of the inner ring of the bearing using an electronic vernier caliper. However, it is found in use that the clamping blocks are used to fix the inner ring of the bearing. This method is easy to cause scratches, indentations and other damages to the outer surface of the inner ring of the bearing by the clamping blocks, and also causes uneven force and deflection of the inner ring of the bearing, resulting in reduced accuracy in measuring the bore diameter of the inner ring of the bearing. At the same time, the above-mentioned prior art places and clamps the inner rings of the bearings one by one, and there are defects such as low bearing inner ring measurement efficiency and high manual dependence. For this reason, we have improved the above-mentioned prior art based on actual use. Summary of the invention

[0005] With regard to the above-mentioned single use of a clamping block to tighten and fix the inner ring of the bearing, this method may easily cause the clamping block to cause scratches, indentations and other damages to the outer surface of the inner ring of the bearing, and may also cause uneven force on the inner ring of the bearing, thereby reducing the accuracy of the bearing inner ring aperture measurement; at the same time, since the above-mentioned prior art places and clamps the bearing inner rings one by one, there will also be problems such as low bearing inner ring measurement efficiency and high dependence on manual labor. The present invention aims to provide a bearing inner ring rolling hole measuring machine with a guide device.

[0006] To achieve the technical purpose, the scheme of the present invention is: a bearing inner ring rolling hole measuring machine with a guide device, comprising a base, an electric conveyor belt is arranged in the base, a laser rangefinder and a measuring block are arranged on the upper end of the electric conveyor belt, and a guide, a clamping member and a driving mechanism are also arranged on the upper end of the electric conveyor belt; the guide member is composed of a No. 1 V-shaped plate and a No. 2 V-shaped plate, and the No. 1 V-shaped plate and the No. 2 V-shaped plate are movably arranged on the upper end of the electric conveyor belt in front and back opposition; the clamping member comprises a No. 1 clamping block and a No. 2 clamping block arranged in front and back opposition, and the inner walls of the No. 1 clamping block and the No. 2 clamping block are both rotatably provided with balls for rolling connection with the ball groove on the outer wall of the bearing inner ring, and gear levers are also arranged on both sides of the No. 2 clamping block.

[0007] Preferably, a first vertical plate and a second vertical plate are integrally provided on the front side of the base, a support frame is integrally provided on the rear side of the base, and a driving mechanism is provided on the lower surface of the support frame for driving the measuring block and the laser rangefinder to move.

[0008] Preferably, a sliding rod is integrally provided on the inner side of the No. 1 vertical plate, and one end of the sliding rod away from the No. 1 vertical plate passes through the No. 2 V-shaped plate and is fixed to the inner side of the No. 1 V-shaped plate.

[0009] Preferably, a screw is rotatably mounted on the upper end of the slide rod through a mounting block, and one end of the screw and an upper end thread of the No. 2 V-shaped plate are arranged to drive the No. 2 V-shaped plate to move around the periphery of the slide rod.

[0010] Preferably, a limiting block is integrally provided at one end of the screw rod away from the first vertical plate, a connecting rod is integrally provided at one side of the sliding rod, and one end of the connecting rod passes through the second V-shaped plate.

[0011] Preferably, a No. 1 electric telescopic rod is fixed to the inner side of the No. 2 vertical plate and the support frame by bolts respectively, and a No. 1 clamping block and a No. 2 clamping block are fixedly installed on the output ends of the two No. 1 electric telescopic rods respectively for driving the No. 1 clamping block and the No. 2 clamping block to move, and gear rods are welded on both sides of the No. 2 clamping block by fixing rods and the openings of the two gear rods face the inner ring of the bearing, and a proximity sensor is fixed on the upper surface of the No. 2 clamping block.

[0012] Preferably, the driving mechanism includes a servo motor and a No. 2 electric telescopic rod, the fixed end of the servo motor is fixed to the lower surface of the support frame, the output end of the servo motor is fixed to the fixed end of the No. 2 electric telescopic rod for driving the No. 2 electric telescopic rod to rotate, and measuring blocks are elastically and movably arranged on both sides of the output end of the No. 2 electric telescopic rod.

[0013] Preferably, the measuring block is a spherical setting, and extension rods are integrally arranged on both sides of the output end of the No. 2 electric telescopic rod, and a sleeve is sleeved on the periphery of each of the extension rods; one end of each of the sleeves away from the No. 2 electric telescopic rod is rotatably mounted with a measuring block through a shaft sleeve; a spring is fixed to the inner wall of the sleeve and one end of the extension rod, a slide groove is provided on the top wall of the sleeve, and a slide rail is integrally arranged on the upper surface of the extension rod, and the slide rail and the slide groove are slidably arranged;

[0014] 1. In the present invention, after the inner ring of the bearing is conveyed between the No. 1 clamping block and the No. 2 clamping block, the gear lever first contacts the left and right sides of the outer periphery of the inner ring of the bearing for positioning, which can preliminarily determine the position of the inner ring of the bearing. When the ball is pressed against the ball groove on the outer surface of the inner ring of the bearing, due to the rolling characteristics of the ball, the ball can adaptively adjust its position with respect to the outer surface of the inner ring of the bearing after contacting the ball groove, so that the inner ring of the bearing can be more accurately positioned at the center position of the No. 1 clamping block and the No. 2 clamping block, which can avoid the occurrence of uneven force on the inner ring of the bearing during the clamping process, thereby improving the measurement accuracy. At the same time, when the ball adjusts the position of the inner ring of the bearing, it has rolling friction with the inner ring of the bearing, which causes less damage to the surface of the inner ring, thereby reducing the damage to the inner ring of the bearing.

[0015] 2. When the inner ring of the bearing moves on the electric conveyor belt, the trumpet-shaped opening channel formed by the No. 1 V-shaped plate and the No. 2 V-shaped plate can use its gradually narrowing shape to gradually return the inner ring of the bearing to the correct path like the funnel principle, so that it can only move accurately along the direction set by the channel to between the No. 1 clamping block and the No. 2 clamping block in the clamping part, which can realize the guided automated and precise conveying of several bearing inner rings and improve the efficiency of bearing inner ring measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of a guide member of the present invention;

[0018] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at a in the middle;

[0019] Figure 4 It is a schematic diagram of the clamping member of the present invention;

[0020] Figure 5It is a schematic diagram of the connection between the extension rod and the ball of the present invention;

[0021] Figure 6 It is an exploded schematic diagram of the connecting mechanism between the extension rod and the ball of the present invention;

[0022] Figure 7 For the present invention Figure 1 Partial schematic diagram.

[0023] Among them, 1. base; 2. electric conveyor belt; 3. guide; 31. No. 1 V-shaped plate; 32. No. 2 V-shaped plate; 33. slide rod; 34. screw; 35. limit block; 36. connecting rod; 4. clamping part; 41. No. 1 clamping block; 42. No. 2 clamping block; 43. ball; 44. gear lever; 5. driving mechanism; 51. servo motor; 52. No. 2 electric telescopic rod; 53. extension rod; 54. sleeve; 55. slide groove; 56. slide rail; 57. spring; 6. measuring block; 7. No. 1 vertical plate; 8. No. 2 vertical plate; 9. support frame; 10. inner ring of bearing; 11. laser rangefinder; 12. No. 1 electric telescopic rod; 13. proximity sensor. DETAILED DESCRIPTION

[0024] The invention of this application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; based on the contents recorded in this application, other embodiments obtained without creative work are all within the scope of protection of the present invention.

[0025] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of clearly describing the present embodiment, rather than indicating or implying that the device or element referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] like Figures 1 to 7 As shown, an embodiment of the present invention provides a bearing inner ring rolling hole measuring machine with a guide device, including a base 1, an electric conveyor belt 2 is arranged in the base 1, a laser rangefinder 11 and a measuring block 6 are arranged on the upper end of the electric conveyor belt 2, and a guide member 3, a clamping member 4 and a driving mechanism 5 are also arranged on the upper end of the electric conveyor belt 2; the guide member 3 is composed of a No. 1 V-shaped plate 31 and a No. 2 V-shaped plate 32, and the No. 1 V-shaped plate 31 and the No. 2 V-shaped plate 32 are movably arranged on the upper end of the electric conveyor belt 2 in a front-to-back opposed manner; the clamping member 4 includes a No. 1 clamping block 41 and a No. 2 clamping block 42 arranged in a front-to-back opposed manner, and the inner walls of the No. 1 clamping block 41 and the No. 2 clamping block 42 are rotatably provided with a ball 43 for rolling connection with the outer wall ball groove of the bearing inner ring 10, and a gear lever 44 is also arranged on both sides of the No. 2 clamping block 42.

[0027] refer to Figure 1 A first vertical plate 7 and a second vertical plate 8 are integrally provided on the front side of the base 1. A controller connected to the electronic components of the device is provided on the front side of the second vertical plate 8 for controlling the connection and operation of the electronic components. The controller can receive and display the aperture parameters obtained by the laser rangefinder 11; a support frame 9 is integrally provided on the rear side of the base 1. A driving mechanism 5 is provided on the lower surface of the support frame 9 for driving the measuring block 6 and the laser rangefinder 11 to move.

[0028] refer to Figures 1 to 3 A slide bar 33 is integrally provided on the inner side of the first vertical plate 7. One end of the slide bar 33 away from the first vertical plate 7 passes through the second V-shaped plate 32 and is fixed to the inner side of the first V-shaped plate 31. A screw rod 34 is rotatably mounted on the upper end of the slide bar 33 through a mounting block. One end of the screw rod 34 is threadedly arranged with the upper end of the second V-shaped plate 32 to drive the second V-shaped plate 32 to move around the outer periphery of the slide bar 33. The clockwise rotation of the screw rod 34 will make the No. 2 V-shaped plate 32 approach the No. 1 V-shaped plate 31, and the channel between the No. 1 V-shaped plate 31 and the No. 2 V-shaped plate 32 will become smaller, which can guide the bearing inner ring 10 with a larger diameter; when the screw rod 34 is rotated in the opposite direction, the No. 2 V-shaped plate 32 will move away from the No. 1 V-shaped plate 31, and the channel will become larger, which can guide the bearing inner ring 10 with a larger diameter, thereby improving the adaptability of guiding the bearing inner ring 10; a limiting block 35 is integrally provided at one end of the screw rod 34 away from the No. 1 vertical plate 7, and a connecting rod 36 is integrally provided on one side of the sliding rod 33, and one end of the connecting rod 36 passes through the No. 2 V-shaped plate 32.

[0029] refer to Figure 7 The inner sides of the No. 2 vertical plate 8 and the support frame 9 are respectively fixed with No. 1 electric telescopic rods 12 by bolts. The output ends of the two No. 1 electric telescopic rods 12 are respectively fixed with No. 1 clamping blocks 41 and No. 2 clamping blocks 42 for driving the No. 1 clamping blocks 41 and No. 2 clamping blocks 42 to move. The two sides of the No. 2 clamping block 42 are welded with gear rods 44 through fixed rods, and the openings of the two gear rods 44 face the inner ring 10 of the bearing. The upper surface of the No. 2 clamping block 42 is fixed with a proximity sensor 13. The proximity sensor 13 is a photoelectric proximity sensor: it works by transmitting and receiving light. It has multiple types such as the through-beam type and the reflective type. The through-beam type is that the transmitter and the receiver are placed separately, and the receiver can be set at the upper end of the No. 1 clamping block 41. The object passing by will block the light and be detected; the reflective type is that the light is reflected back by the object after being emitted and received to detect the object, and only needs to be set on the No. 2 clamping block 42.

[0030] refer to Figure 7 The driving mechanism 5 includes a servo motor 51 and a second electric telescopic rod 52. The fixed end of the servo motor 51 is fixed to the lower surface of the support frame 9. The output end of the servo motor 51 is fixed to the fixed end of the second electric telescopic rod 52 to drive the second electric telescopic rod 52 to rotate. The measuring blocks 6 are elastically and movably set on both sides of the output end of the second electric telescopic rod 52.

[0031] refer to Figure 7 The measuring block 6 is a spherical ball 43 and has little friction with the top of the bearing inner ring 10, which makes it easy for the measuring block 6 to slide into the bearing inner ring 10. Extension rods 53 are integrally arranged on both sides of the output end of the No. 2 electric telescopic rod 52, and a sleeve 54 is sleeved on the outer periphery of each extension rod 53; one end of each sleeve 54 away from the No. 2 electric telescopic rod 52 is rotatably mounted with the measuring block 6 through a sleeve; a spring 57 is fixed to the inner wall of the sleeve 54 and one end of the extension rod 53 to generate elastic force for each measuring block 6, so that the measuring block 6 fits more closely with the inner wall of the bearing inner ring 10, and prevents the measuring block 6 from rolling and not fitting in the bearing inner ring 10; a slide groove 55 is provided on the top wall of the sleeve 54, and a slide rail 56 is integrally arranged on the upper surface of the extension rod 53, and the slide rail 56 and the slide groove 55 are slidably arranged.

[0032] Working principle: by placing the bearing inner ring 10 on the upper surface of the electric conveyor belt 2 for conveying, when the bearing inner ring 10 enters between the trumpet-shaped opening formed by the No. 1 V-shaped plate 31 and the No. 2 V-shaped plate 32 in the guide member 3, the bearing inner ring 10 is limited by the side walls of the No. 1 V-shaped plate 31 and the No. 2 V-shaped plate 32. When the bearing inner ring 10 moves on the electric conveyor belt 2, the trumpet-shaped opening channel can use its gradually narrowing shape to gradually return the bearing inner ring 10 to the correct path like the funnel principle, so that it can only accurately move along the direction set by the channel to between the No. 1 clamping block 41 and the No. 2 clamping block 42 in the clamping member 4, so as to achieve guided and accurate conveying of several bearing inner rings 10 and improve the efficiency of measuring the bearing inner ring 10;

[0033] After the bearing inner ring 10 is transported to between the No. 1 clamping block 41 and the No. 2 clamping block 42 and is detected by the proximity sensor 13, the controller will start the No. 1 electric telescopic rod 12 to push the No. 1 clamping block 41 and the No. 2 clamping block 42 to move to the front and rear sides of the bearing inner ring 10, and the gear lever 44 will first contact the left and right sides of the outer periphery of the bearing inner ring 10 for positioning, which can preliminarily determine the position of the bearing inner ring 10; then, when the balls 43 on the inner walls of the No. 1 clamping block 41 and the No. 2 clamping block 42 are pressed against the ball grooves on the outer surface of the bearing inner ring 10, Due to the rolling characteristics of the ball 43, after contacting the ball groove, the ball 43 can adaptively adjust its position relative to the outer surface of the bearing inner ring 10, so that the bearing inner ring 10 can be more accurately positioned at the center of the No. 1 clamping block 41 and the No. 2 clamping block 42, thereby avoiding the occurrence of uneven force on the bearing inner ring 10 during the clamping process. At the same time, when the ball 43 adjusts the position of the bearing inner ring 10, it has rolling friction with the bearing inner ring 10, which causes less damage to the inner ring surface and reduces damage to the bearing inner ring 10.

[0034] Finally, the controller starts the No. 2 electric telescopic rod 52 to drive the extension rod 53 to move the two measuring blocks 6 and the two laser rangefinders 11 to the inner ring 10 of the bearing. After the servo motor 51 is started, the No. 2 electric telescopic rod 52 is driven to rotate so that the two measuring blocks 6 roll on the inner wall of the inner ring 10 of the bearing. The laser rangefinder 11 can be used to measure the aperture of the inner ring 10 of the bearing in a static and dynamic state.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any slight modification, equivalent substitution and improvement made to the above embodiment based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A bearing inner ring rolling hole measuring machine provided with a guide device, comprising a base (1), an electric conveyor belt (2) provided inside the base (1), a laser rangefinder (11) and a measuring block (6) provided at the upper end of the electric conveyor belt (2), characterized in that: The upper end of the electric conveyor belt (2) is also provided with a guide member (3), a clamping member (4) and a driving mechanism (5); The guide member (3) is composed of a first V-shaped plate (31) and a second V-shaped plate (32), and the first V-shaped plate (31) and the second V-shaped plate (32) are movably arranged on the upper end of the electric conveyor belt (2) in a front-to-back opposed manner; The clamping member (4) comprises a first clamping block (41) and a second clamping block (42) which are arranged front and back oppositely, and the inner walls of the first clamping block (41) and the second clamping block (42) are both rotatably provided with balls (43) for rolling connection with the ball grooves on the outer walls of the bearing inner ring (10), and shift rods (44) are also provided on both sides of the second clamping block (42).

2. The bearing inner ring rolling hole measuring machine with a guide device according to claim 1, characterized in that: A first vertical plate (7) and a second vertical plate (8) are integrally provided on the front side of the base (1), a support frame (9) is integrally provided on the rear side of the base (1), and a driving mechanism (5) is provided on the lower surface of the support frame (9) for driving the measuring block (6) and the laser rangefinder (11) to move.

3. The bearing inner ring rolling hole measuring machine with a guide device according to claim 2, characterized in that: A slide bar (33) is integrally provided on the inner side of the first vertical plate (7), and one end of the slide bar (33) away from the first vertical plate (7) passes through the second V-shaped plate (32) and is fixed to the inner side of the first V-shaped plate (31).

4. The bearing inner ring rolling hole measuring machine with a guide device according to claim 2, characterized in that: A screw rod (34) is rotatably mounted on the upper end of the slide rod (33) through a mounting block, and one end of the screw rod (34) is threadedly arranged with the upper end of the second V-shaped plate (32) to drive the second V-shaped plate (32) to move around the slide rod (33).

5. The bearing inner ring rolling hole measuring machine with a guide device according to claim 4, characterized in that: A limit block (35) is integrally provided at one end of the screw rod (34) away from the first vertical plate (7), and a connecting rod (36) is integrally provided at one side of the slide rod (33), and one end of the connecting rod (36) passes through the second V-shaped plate (32).

6. The bearing inner ring rolling hole measuring machine with a guide device according to claim 1, characterized in that: The inner sides of the No. 2 vertical plate (8) and the support frame (9) are respectively fixed with a No. 1 electric telescopic rod (12) by bolts, and the output ends of the two No. 1 electric telescopic rods (12) are respectively fixedly installed with a No. 1 clamping block (41) and a No. 2 clamping block (42) for driving the No. 1 clamping block (41) and the No. 2 clamping block (42) to move, and the two sides of the No. 2 clamping block (42) are welded with a gear rod (44) by a fixing rod, and the openings of the two gear rods (44) face the inner ring of the bearing (10), and the upper surface of the No. 2 clamping block (42) is fixed with a proximity sensor (13).

7. The bearing inner ring rolling hole measuring machine with a guide device according to claim 1, characterized in that: The driving mechanism (5) comprises a servo motor (51) and a second electric telescopic rod (52); a fixed end of the servo motor (51) is fixed to the lower surface of the support frame (9); an output end of the servo motor (51) is fixed to a fixed end of the second electric telescopic rod (52) for driving the second electric telescopic rod (52) to rotate; and measuring blocks (6) are elastically and movably arranged on both sides of the output end of the second electric telescopic rod (52).

8. The bearing inner ring rolling hole measuring machine with a guide device according to claim 7, characterized in that: The measuring block (6) is in the form of a spherical ball. Extension rods (53) are integrally provided on both sides of the output end of the second electric telescopic rod (52). A sleeve (54) is provided on the periphery of each extension rod (53). One end of each sleeve (54) away from the second electric telescopic rod (52) is rotatably mounted with a measuring block (6) via a shaft sleeve; A spring (57) is fixed to the inner wall of the sleeve (54) and one end of the extension rod (53); a slide groove (55) is provided on the top wall of the sleeve (54); a slide rail (56) is integrally provided on the upper surface of the extension rod (53); and the slide rail (56) and the slide groove (55) are slidably arranged.

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