Bearing bush detection positioning device

Abstract

A bearing bush detection positioning device disclosed by the present invention comprises a fixed seat, a ring sleeve and a pressing rod, the fixed seat can move up and down, the fixed seat is provided with a through hole, the ring sleeve passes through the through hole, the aperture of the through hole is greater than the outer diameter of the ring sleeve, the pressing rod is inserted into the fixed seat and extends out of the hole wall of the through hole, and the pressing rod can move along the radial direction of the through hole. The three pressing rods are evenly distributed in the circumferential direction of the through hole, move inwards in the radial direction of the through hole and abut against the outer wall of the ring sleeve, and therefore the fixing base can drive the ring sleeve to move up and down together when moving up and down. The positioning seat is used for clamping the bearing bush, the ring sleeve is provided with a shaft body through a bearing, the shaft body penetrates through the ring sleeve, the shaft body is fixedly provided with a shaft sleeve, the shaft body penetrates through the shaft sleeve, the shaft body can rotate along the axis of the shaft body, and the shaft body rotates to drive the shaft sleeve to rotate. The invention provides a bearing bush detecting and positioning device, and aims to improve the clamping concentricity so as to improve the detection precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing bush grinding equipment, in particular to a bearing bush detection positioning device. BACKGROUND

[0002] In the manufacturing process of large-size sliding bearings, the bearing includes two bearing bushes spliced together, the bearing bush is a semi-circular ring structure, and an alloy layer is coated on the inner wall of the bearing bush to enhance the strength of the inner wall of the bearing bush. After the coating of the inner wall of the bearing bush, a standard shaft is inserted into the inner wall of the bearing bush to detect the gap between the standard shaft and the bearing bush for quality control. Due to the errors in the machining and clamping of the bearing bush, there is a high concentricity error after the standard shaft is inserted into the inner wall of the bearing bush, which affects the detection accuracy and has disadvantages. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, provide a bearing bush detection positioning device, and improve the clamping concentricity to improve the detection accuracy.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: a bearing bush detection positioning device, comprising a fixed seat, a ring sleeve, and a pressing rod, the fixed seat can move up and down, the fixed seat is provided with a through hole, the ring sleeve passes through the through hole, the hole diameter of the through hole is larger than the outer diameter of the ring sleeve, the pressing rod is inserted into the fixed seat and protrudes from the hole wall of the through hole, the pressing rod can move along the radial direction of the through hole, the pressing rod is uniformly distributed along the circumferential direction of the through hole, the pressing rod moves inward along the radial direction of the through hole, and the pressing rod abuts against the outer wall of the ring sleeve, so that the fixed seat can drive the ring sleeve to move up and down when the fixed seat moves up and down; further comprising a positioning seat for clamping the bearing bush, the ring sleeve is provided with a shaft body through a bearing, the shaft body passes through the ring sleeve, the shaft body is fixedly provided with a shaft sleeve, the shaft body passes through the shaft sleeve, the shaft body can rotate along its own axis, and the shaft body drives the shaft sleeve to rotate.

[0005] The present application is further provided, the ring sleeve includes a convex body at the bottom, one of the pressing rods is located below the ring sleeve, the pressing rod located below the ring sleeve is in sliding connection with the convex body, the pressing rod is provided with a sliding sheet, and the convex body can move transversely along the outer wall of the sliding sheet.

[0006] The present application is further provided, the convex body is provided with a groove, the sliding sheet is inserted into the groove, and the sliding sheet is in sliding connection with the groove.

[0007] The present application is further provided, the fixed seat is installed on a lifting seat, the lifting seat is driven to lift by a hydraulic cylinder, and the fixed seat is located on both sides of the lifting seat.

[0008] The present application is further provided, the fixed seat is provided with a counterbore, the pressing rod is inserted into the counterbore, the counterbore is communicated with an extension hole, and the extension hole is communicated with the through hole.

[0009] The invention is further configured such that a mounting base is installed on the fixed base, a driving component is installed on the mounting base, a movable plate is installed at the output end of the driving component, the movable plate is inserted into the fixed base, the movable plate and the pressure rod are arranged in a one-to-one correspondence, and a spring is installed between the movable plate and the pressure rod, with the two ends of the spring abutting against the movable plate and the pressure rod respectively.

[0010] The invention is further configured such that the fixing seat is equipped with baffles, which are located at both ends of the ring sleeve along the axial direction.

[0011] The present invention is further configured to include a limiting plate, the limiting plate being located at both ends of the bushing axially, and the shaft passing through the limiting plate.

[0012] By setting up a ring that can be adjusted horizontally and vertically, the bushing can also be adjusted horizontally and vertically. Driven by the lifting seat, the bushing moves downward until the outer peripheral wall of the bushing is in contact with the inner wall. During the contact process, due to the adjustment of the pressure rod, the bushing and the inner wall of the bearing are concentric, thereby improving the detection accuracy. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of an embodiment;

[0014] Figure 2 for Figure 1 A cross-sectional view along the MM direction;

[0015] Figure 3 for Figure 1 A cross-sectional view along the NN direction;

[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is a schematic diagram of the fit between the pressure rod and the protrusion in the embodiment;

[0018] Figure 6 This is a cross-sectional view of the bearing bush in the embodiment.

[0019] Reference numerals: Positioning seat 1, Pressure plate one 11, Pressure plate two 12, Groove 13, Lifting seat 2, Fixed seat 21, Through hole 211, Countersunk hole 212, Extension hole 213, Baffle 22, Mounting seat 3, Drive component 31, Moving plate 32, Spring 33, Pressure rod 34, Sliding piece 341, Ring sleeve 4, Protrusion 41, Groove 411, Bearing 5, Shaft 6, Motor 61, Support seat 62, Bearing bush 7, Inner wall surface 71, Bushing 8, Limiting plate 9. Detailed Implementation

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0021] As shown in Figures 1-6 , the present embodiment discloses a bearing detection positioning device, which comprises a positioning seat 1 and a lifting seat 2. The lifting seat 2 is driven to be lifted by a hydraulic cylinder. The lifting seat 2 is provided with a fixed seat 21 on both sides. The lifting seat 2 drives the fixed seat 21 to move up and down. Figure 1 、 Figure 3 The fixed seat 21 is provided with a through hole 211. The ring sleeve 4 passes through the through hole 211. The diameter of the through hole 211 is greater than the outer diameter of the ring sleeve 4, so that the ring sleeve 4 can move in the through hole 211, thereby adjusting the horizontal and vertical positions of the ring sleeve 4.

[0022] As shown in Figure 3 , the fixed seat 21 is provided with a pressing rod 34. The pressing rod 34 is uniformly distributed along the circumference of the through hole 211. The pressing rod 34 moves inward along the radial direction of the through hole 211 to abut against the outer wall of the ring sleeve 4. Specifically, the fixed seat 21 is provided with a mounting seat 3. The mounting seat 3 is provided with a driving component 31. The driving component 31 is a hydraulic cylinder. Figure 3 、 Figure 4 The fixed seat 21 is provided with a counterbore 212. The pressing rod 34 is inserted into the counterbore 212. The counterbore 212 is communicated with an extension hole 213. The extension hole 213 is communicated with the through hole 211. The pressing rod 34 passes through the extension hole 213. The pressing rod 34 extends into the through hole 211 and abuts against the outer wall of the ring sleeve 4. Figure 4 、 Figure 5 As shown in 、

[0023] As shown in Figure 3As shown, the driving component 31 is provided with a moving plate 32 at the output end, the moving plate 32 is inserted into the counterbore 212, and the moving plate 32 is provided in one-to-one correspondence with the pressing rods 34, and the spring 33 is installed between the moving plate 32 and the pressing rod 34, and the two ends of the spring 33 are respectively abutted with the moving plate 32 and the pressing rod 34. The pressing rod 34 can move along the radial direction of the through hole 211, and in the state that the three pressing rods press the ring sleeve 4, the fixed seat 21 can drive the ring sleeve 4 to move up and down when the fixed seat 21 moves up and down.

[0024] As shown in Figure 1 , the fixed seat 21 is provided with a baffle 22, and the baffle 22 is located at the two ends of the ring sleeve 4 in the axial direction, and the baffle 22 limits the ring sleeve 4 in the axial direction to prevent it from falling out.

[0025] The ring sleeve 4 is provided with a shaft body 6 through a bearing 5, the shaft body 6 penetrates the ring sleeve 4, the shaft body 6 is fixedly provided with a shaft sleeve 8, the outer diameter of the shaft sleeve 8 is the standard shaft outer diameter, the shaft body 6 penetrates the shaft sleeve 8, the shaft body 6 can rotate along the axis itself, and the shaft body 6 drives the shaft sleeve 8 to rotate. Specifically, it also includes a support seat 62 located on one side of the shaft body 6 in the axial direction, and the support seat 62 is provided with a motor 61, and the output end of the motor 61 is connected with the shaft body 6 to drive the shaft body 6 to rotate.

[0026] The lifting seat 2 is provided with a limiting plate 9, and the limiting plate 9 is located at the two ends of the shaft sleeve 8 in the axial direction, and the shaft body 6 penetrates the limiting plate 9, and the limiting plate 9 is used for limiting the shaft body 6 in the axial direction.

[0027] As shown in Figure 1 , the positioning seat 1 is used for clamping a bearing bush 7, and the bearing bush 7 is a semicircular ring structure, and the positioning seat 1 is provided with a groove 13, and the bearing bush 7 is inserted into the groove 13, and the outer wall surface of the bearing bush 7 can be attached to the inner wall surface of the groove 13. Figure 6 As shown in , the bearing bush 7 includes an inner wall surface 71 located on the inner side in the radial direction, and the inner wall surface 71 is a detection surface, and the inner wall surface 71 is a semicircular surface.

[0028] The use steps of the detection positioning device of the bearing bush are as follows:

[0029] ①The bearing bush 7 is fixedly installed on the positioning seat 1, and the bearing bush 7 is inserted from the side of the positioning seat 1 in combination with Figure 1 , Figure 2 , the positioning seat 1 is provided with a pressing plate two 12, the pressing plate two 12 is laterally installed on the positioning seat 1, the pressing plate two 12 and the positioning seat 1 press and fix the bearing bush 7 transversely, the positioning seat 1 is provided with a pressing plate one 11, the pressing plate one 11 is located on both sides of the bearing bush 7, and the pressing plate one 11 presses the upper end surfaces of both sides of the bearing bush 7.

[0030] ②Under the driving of the lifting seat 2, the shaft sleeve 8 moves downward to the state that the outer peripheral wall of the shaft sleeve 8 is attached to the inner wall surface 71, and in the attachment process, the shaft sleeve 8 is concentric with the inner wall surface 71 due to the adjusting action of the pressing rod 34. Figure 3As shown, when the shaft sleeve 8 is concentric with the inner wall surface 71, i.e. the wall surface is matched, the two upper pressing rods press the ring 4 through the driving of the driving part, so as to prevent the shaft sleeve 8 from moving.

[0031] ③The external device seals the joint of the shaft sleeve 8 and the bearing bush 7. The joint of the shaft sleeve 8 and the bearing bush 7 is provided with an inlet and an outlet. The inlet is used for air inlet, and the outlet is connected with the air flow meter. The air flows into the gap between the outer wall of the shaft sleeve 8 and the inner wall of the bearing bush 7 and flows to the air flow meter to display the air flow, so as to detect the size of the gap between the outer wall of the shaft sleeve 8 and the inner wall of the bearing bush 7.

[0032] The shaft sleeve 8 is driven to rotate through the rotation of the shaft body 6, so as to detect the size of the gap between the outer wall of the shaft body 6 and the inner wall of the bearing bush 7 at different circumferential positions.

[0033] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application shall also be considered as the protection scope of the present application.

Claims

1. A bearing bush detection and positioning device, characterized in that, The device includes a fixed base (21), a ring (4), and a pressure rod (34). The fixed base (21) can move up and down. The fixed base (21) has a through hole (211). The ring (4) passes through the through hole (211). The diameter of the through hole (211) is larger than the outer diameter of the ring (4). The pressure rod (34) is inserted into the fixed base (21) and extends out of the hole wall of the through hole (211). The pressure rod (34) can move radially along the through hole (211). There are three pressure rods (34) evenly distributed around the circumference of the through hole (211). The pressure rod (34) moves radially inward along the through hole (211). The pressure rod (34) abuts against the outer wall of the ring (4), so that when the fixed base (21) moves up and down, it can drive the ring (4) to move up and down together. It also includes a positioning seat (1) for clamping the bearing shell (7), the ring sleeve (4) is fitted with a shaft body (6) via a bearing (5), the shaft body (6) passes through the ring sleeve (4), the shaft body (6) is fixedly fitted with a bushing (8), the shaft body (6) passes through the bushing (8), the shaft body (6) can rotate along its own axis, and the rotation of the shaft body (6) drives the bushing (8) to rotate.

2. The bearing bush detection and positioning device according to claim 1, characterized in that, The ring (4) includes a protrusion (41) at the bottom, and one of the pressure rods (34) is located below the ring (4). The pressure rod (34) located below the ring (4) is slidably connected to the protrusion (41). The pressure rod (34) is provided with a sliding piece (341). The protrusion (41) can move laterally along the outer wall of the sliding piece (341).

3. The bearing bush detection and positioning device according to claim 3, characterized in that, The protrusion (41) is provided with a groove (411), and the slide (341) is inserted into the groove (411), and the slide (341) is slidably connected to the groove (411).

4. The bearing bush detection and positioning device according to claim 1, characterized in that, The fixed seat (21) is installed on the lifting seat (2), which is driven to lift by a hydraulic cylinder. The fixed seat (21) is located on both sides of the lifting seat (2).

5. The bearing bush detection and positioning device according to claim 1, characterized in that, The fixed base (21) is provided with a countersunk hole (212), the pressure rod (34) is inserted into the countersunk hole (212), the countersunk hole (212) is connected to an extension hole (213), and the extension hole (213) is connected to the through hole (211).

6. The bearing bush detection and positioning device according to claim 1, characterized in that, The fixed base (21) is equipped with a mounting base (3), the mounting base (3) is equipped with a driving component (31), the output end of the driving component (31) is equipped with a moving plate (32), the moving plate (32) is inserted into the fixed base (21), the moving plate (32) and the pressure rod (34) are arranged in a one-to-one correspondence, a spring (33) is installed between the moving plate (32) and the pressure rod (34), and the two ends of the spring (33) abut against the moving plate (32) and the pressure rod (34) respectively.

7. The bearing bush detection and positioning device according to claim 1, characterized in that, The fixed seat (21) is equipped with a baffle (22), which is located at both ends of the ring sleeve (4) in the axial direction.

8. The bearing bush detection and positioning device according to claim 1, characterized in that, Includes a limiting plate (9), which is located at both ends of the bushing (8) in the axial direction, and the shaft (6) passes through the limiting plate (9).

Images