Positioning worktable for bearing installation

Abstract

The utility model relates to bearing assembly technical field, especially a kind of positioning workstation for bearing installation, including workstation, the side of the workstation is provided with mechanical arm, the mechanical arm is used to clamp and move bearing, the top of the workstation is fixedly installed with support, the front side of the support is spaced apart and is provided with angle adjusting module fixedly installed in the top of workstation, the top of the support is fixedly installed with hydraulic cylinder, the bottom of the hydraulic cylinder is fixedly installed with pressing plate. By adopting the above technical scheme, the part that needs to install bearing is clamped and fixed by angle adjusting module when using, then the bearing is placed in the position that part needs to install bearing by mechanical arm clamping, the bearing is pressed on part by the pressing plate of hydraulic cylinder.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly technology, and in particular to a positioning worktable for bearing installation. Background Technology

[0002] Bearings are essential components in mechanical equipment, primarily functioning to support rotating mechanical bodies, reduce the coefficient of friction during movement, and ensure rotational accuracy. Bearings can be broadly classified into rolling bearings and sliding bearings. Routine maintenance of bearings includes lubrication, cleaning, installation and disassembly, operational monitoring, storage, and protection. Causes of bearing wear include peeling, burning, cracks, and cage damage. Solutions include checking the machining accuracy of the shaft and bearing housing, checking the type and amount of lubricant injected, setting appropriate interference fit, and checking the material. Therefore, bearings are indispensable components in modern processes. Maintaining bearing accuracy during installation and ensuring undamaged installation in the required component positions are challenges in bearing usage. Current technologies mostly utilize thermal expansion and contraction through overheating or cooling to install bearings in their corresponding positions. However, this method is not suitable for automated installation of multiple bearings on a single component. Therefore, a rigid pressing method is generally used for assembly. The positioning accuracy and intelligence of existing assembly devices are insufficient to meet the demands of large-scale industrial production.

[0003] The existing technical solutions mentioned above have the following drawbacks: they cannot quickly and accurately install bearings in the middle section of shaft-like parts. Here, the bearing axis refers to the installation method where the axis is perpendicular to the axis of the shaft-like parts. Utility Model Content

[0004] The purpose of this invention is to provide a positioning worktable for bearing installation, so as to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A positioning workbench for bearing installation includes a workbench, a robotic arm on one side of the workbench for clamping and moving the bearing, a bracket fixedly mounted on the top of the workbench, angle adjustment modules fixedly mounted on the top of the workbench at intervals on the front side of the bracket, a hydraulic cylinder fixedly mounted on the top of the bracket, and a pressing plate fixedly mounted on the bottom of the hydraulic cylinder.

[0007] By adopting the above technical solution, the part that needs to be installed with the bearing is clamped and fixed by the angle adjustment module during use. Then, the bearing is clamped by the robotic arm and placed in the position where the bearing needs to be installed on the part. The bearing is pressed down on the part by the pressing plate of the hydraulic cylinder.

[0008] In a further embodiment, the angle adjustment module includes a rotary cylinder, a linear motor, and a blocking block. The rotary cylinder is fixedly installed on the top of the worktable, and the top of the worktable is provided with a groove located on the front side of the rotary cylinder. The linear motor is fixedly installed in the groove, and the top of the linear motor is located in the groove. The blocking block is fixedly installed on the top of the moving part of the linear motor, and the linear motor is used to drive the blocking block to move back and forth.

[0009] By adopting the above technical solution, when in use, the robotic arm clamps the part onto the turntable of the rotary cylinder, and then drives the linear motor to move backward, so that the blocking block blocks the front end of the part, and the rear end of the part is blocked by the rotary cylinder, thereby clamping the part.

[0010] In a further embodiment, the rotary cylinder's turntable is located on the front side of the rotary cylinder body, and the axis of the rotary cylinder's turntable is in the front-back direction. A threaded hole is provided at the center of the front side of the rotary cylinder's turntable, and a sleeve coaxially arranged with the turntable is installed on the front side of the rotary cylinder's turntable. The rear top of the blocking block is provided with a left-right through clearance groove, and the bottom surface of the clearance groove is an arc-shaped surface.

[0011] By adopting the above technical solution, the curvature of the arc surface is consistent with the curvature of the workpiece, so the blocking block can be detachably installed on the top of the moving part of the linear motor. It can generally be fixed by bolts. When a bearing needs to be installed in the middle section of a shaft-like part, the robotic arm clamps the shaft-like part so that one end of the shaft-like part is placed coaxially in the sleeve, and the front end of the shaft-like part is blocked by the blocking block. At this time, the bottom of the blocking block is in contact with the bottom of the front end of the shaft-like part, which can play a supporting role. When the bearing is pressed on the top of the middle section of the shaft-like part from top to bottom, it is subjected to force from both front and back, which makes the installation accuracy higher and avoids the problem that when only one end is subjected to force, the other end will tilt during installation, resulting in a decrease in installation accuracy.

[0012] In a further embodiment, a pressure sensor is fixedly mounted on the rear top of the blocking block.

[0013] By adopting the above technical solution, the pressure sensor is used to detect the pressure between the blocking block and the front end face of the part, ensuring the clamping force.

[0014] In a further embodiment, the bottom of the pressing plate is provided with an annular groove.

[0015] By adopting the above technical solution, the size of the annular groove is matched with the outer ring size of the bearing to be installed, so that the bearing will not slide back and forth or left and right during the pressing process, thus improving the installation accuracy.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. During use, the part to which the bearing needs to be installed is clamped and fixed by the angle adjustment module, and then the bearing is placed on the part by the mechanical arm. The bearing is pressed on the part by the pressing plate of the hydraulic cylinder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram illustrating the angle adjustment module of this utility model.

[0020] In the diagram, 1 is the workbench; 2 is the support frame; 3 is the angle adjustment module; 31 is the rotary cylinder; 32 is the linear motor; 33 is the blocking block; 4 is the hydraulic cylinder; and 5 is the pressing plate. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0023] Example 1:

[0024] like Figures 1-2As shown, a positioning workbench for bearing installation includes a workbench 1. A robotic arm is mounted on one side of the workbench 1 for clamping and moving the bearing. A bracket 2 is fixedly mounted on the top of the workbench 1. An angle adjustment module 3 is fixedly mounted on the top of the workbench 1 at intervals on the front side of the bracket 2. A hydraulic cylinder 4 is fixedly mounted on the top of the bracket 2, and a pressing plate 5 is fixedly mounted on the bottom of the hydraulic cylinder 4. The angle adjustment module 3 includes a rotary cylinder 31, a linear motor 32, and a blocking block 33. The rotary cylinder 31 is fixedly mounted on the top of the workbench 1, and a groove is provided on the top of the workbench 1 located on the front side of the rotary cylinder 31. The linear motor 32 is fixedly mounted in the groove, with its top located in the groove, and the blocking block 33. The stop block 33 is fixedly installed on the top of the moving part of the linear motor 32, which drives the stop block 33 to move back and forth. The turntable of the rotary cylinder 31 is located on the front side of the rotary cylinder 31 body, and the axis of the turntable of the rotary cylinder 31 is in the front-back direction. A threaded hole is provided at the center of the front side of the turntable of the rotary cylinder 31. A sleeve coaxially arranged with the turntable is installed on the front side of the turntable of the rotary cylinder 31. A clearance groove that runs through the left and right sides is provided at the top rear side of the stop block 33. The bottom end surface of the clearance groove is an arc-shaped surface. A pressure sensor is fixedly installed at the top rear side of the stop block 33. The pressure sensor is used to detect the pressure between the stop block and the front end surface of the part to ensure the clamping force. An annular groove is provided at the bottom of the pressing plate 5.

[0025] Specific implementation process: The curvature of the arc surface matches the curvature of the workpiece, so the blocking block can be detachably installed on the top of the moving part of the linear motor. It is generally fixed with bolts. When a bearing needs to be installed in the middle section of a shaft-like part, the robotic arm clamps the shaft-like part so that one end of the shaft-like part is coaxially placed inside the sleeve, while the front end of the shaft-like part is blocked by the blocking block. At this time, the bottom of the blocking block is in contact with the bottom of the front end of the shaft-like part, providing support. When the bearing is pressed down from top to bottom onto the top of the middle section of the shaft-like part, there is force applied from both front and back, resulting in higher installation accuracy. To avoid the problem of reduced installation accuracy caused by the other end tilting when only one end is under force, the position of the shaft can be adjusted by rotating a rotary cylinder when multiple bearings need to be installed axially evenly on some shaft parts. For this type of shaft, spline grooves need to be machined at both ends of the shaft for positioning. Then, a protrusion is set inside the sleeve to cooperate with the spline groove. When the shaft part needs to be rotated after installing a bearing, the linear motor moves forward a little distance, and then the rotary cylinder works. After rotating to the desired angle, the linear motor moves backward to continue to hold the two ends of the shaft part in place.

[0026] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A positioning worktable for bearing installation, characterized in that: The device includes a workbench (1), a robotic arm on one side of the workbench (1) for clamping a movable bearing, a bracket (2) fixedly mounted on the top of the workbench (1), an angle adjustment module (3) fixedly mounted on the top of the workbench (1) at intervals on the front side of the bracket (2), a hydraulic cylinder (4) fixedly mounted on the top of the bracket (2), and a pressing plate (5) fixedly mounted on the bottom of the hydraulic cylinder (4).

2. The positioning worktable for bearing installation according to claim 1, characterized in that: The angle adjustment module (3) includes a rotary cylinder (31), a linear motor (32), and a blocking block (33). The rotary cylinder (31) is fixedly installed on the top of the worktable (1). The top of the worktable (1) is provided with a groove located in front of the rotary cylinder (31). The linear motor (32) is fixedly installed in the groove. The top of the linear motor (32) is located in the groove. The blocking block (33) is fixedly installed on the top of the moving part of the linear motor (32). The linear motor (32) is used to drive the blocking block (33) to move back and forth.

3. The positioning worktable for bearing installation according to claim 2, characterized in that: The turntable of the rotary cylinder (31) is located on the front side of the rotary cylinder (31) body, and the axis of the turntable of the rotary cylinder (31) is in the front-back direction. A threaded hole is provided at the center of the front side of the turntable of the rotary cylinder (31), and a sleeve coaxially arranged with the turntable is installed on the front side of the turntable of the rotary cylinder (31). A left-right through clearance groove is provided at the rear top of the blocking block (33), and the bottom end surface of the clearance groove is an arc surface.

4. The positioning worktable for bearing installation according to claim 2, characterized in that: A pressure sensor is fixedly installed on the rear top of the blocking block (33).

5. The positioning worktable for bearing installation according to claim 1, characterized in that: The bottom of the pressing plate (5) is provided with an annular groove.

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