Bearing inner ring positioning and clamping tool

Abstract

The utility model relates to the technical field of positioning and clamping tools, and discloses a bearing inner ring positioning and clamping tool which comprises a positioning table, a positioning part is arranged in the positioning table and comprises a threaded rotating rod, the threaded rotating rod penetrates through the positioning table and is rotationally connected with the positioning table, a handle is fixedly connected to the surface of the left side of the threaded rotating rod, and the handle is fixedly connected to the surface of the right side of the threaded rotating rod. According to the bearing inner ring positioning and clamping tool, when the limiting rods are expanded towards the two sides by a certain distance, the limiting rods abut against the hinged plates, the hinged plates are limited by the limiting blocks in a one-way mode, and therefore the limiting rods cannot continue to move, the limiting rods penetrate through the positioning plates, and the positioning plates are fixedly connected with the square column; therefore, the square column cannot continue to move, the threaded sleeve cannot continue to move, a worker cannot continue to rotate the handle, the worker knows that the maximum clamping force is reached, rotation is stopped, and the situation that the cylinder is continuously opened, and consequently a bearing is deformed and damaged is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning and clamping tooling, in particular to a positioning and clamping tooling for an inner ring of a bearing. Background Art

[0002] The inner ring positioning and clamping tool for bearings is a device used to install and clamp the inner ring of a bearing. A bearing is a rotating component, and the inner ring is the internal part of the bearing, which is usually fixed to the shaft. In order to ensure the correct installation and operation of the bearing, the inner ring of the bearing needs to be accurately positioned and clamped on the shaft.

[0003] According to a publicly disclosed bearing inner ring positioning and clamping tool (publication number: CN219704257U), the positioning column is positioned and clamped on the inner side of the bearing through motor drive. However, in actual use, the staff cannot know when the motor has been clamped and thus stop the motor. Continuously starting the motor will either cause the motor to idle or get stuck, causing great damage to the motor. It may also cause the inner ring of the bearing to deform. Since the bearing is a precision part, slight deformation may also affect its service life and even cause hidden dangers when used in equipment. Summary of the invention

[0004] The utility model aims to provide a bearing inner ring positioning and clamping tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing inner ring positioning and clamping tool, comprising a positioning platform, a positioning part is arranged inside the positioning platform, and the positioning part comprises:

[0006] A threaded rotating rod, the threaded rotating rod passes through the positioning platform and is rotatably connected, a handle is fixedly connected to the left surface of the threaded rotating rod, and the handle is turned, and the handle drives the threaded rotating rod to rotate when it is turned, and the threaded rotating rod passes through and is threadedly connected with a screw sleeve, and when the threaded rotating rod rotates, the screw sleeve moves when the threaded rotating rod rotates because the cylinder passes through the positioning groove, and the top surface of the screw sleeve is fixedly connected to a square column, and the top surface of the square column is fixedly connected to an arc block;

[0007] A cavity, wherein the cavity is opened inside the positioning platform, the arc block is slidably connected to the inner side of the cavity, and the arc block is penetrated by an arc rod;

[0008] A slide groove is provided on the inner side of the arc block, the arc block is penetrated and slidably connected by a support rod, a cylinder is fixedly connected to the top surface of the support rod, the support rod is penetrated and slidably connected by a cross bar, the cross bar is fixedly connected to the inner side of the slide groove, and a clamping spring is fixedly connected between the support rod and the inner side of the slide groove.

[0009] Preferably, the bottom end of the support rod passes through and is fixedly connected with a pushing block, the surface of the square column is fixedly connected with a positioning plate, the positioning plate is passed through and slidably connected by the limiting rod, and continuous rotation of the threaded rotating rod will cause the arc block to continuously drive the cylinder to move, and when the cylinder completely contacts the inner side of the bearing, the limiting rod is spread to both sides, the bottom surface of the limiting rod is fixedly connected with a square plate, and a return spring is fixedly connected between the square plate and the positioning plate.

[0010] Preferably, the inner wall of the positioning platform is fixedly connected with a fixing bar, the top surface of the fixing bar is hinged with a hinge plate, the top surface of the fixing bar is fixedly connected with a limiting block, the right side surface of the hinge plate is fixedly connected with a torsion spring, the end of the torsion spring away from the hinge plate is fixedly connected to the top surface of the fixing bar, when the limiting rod is stretched to both sides to a certain distance, it will contact the hinge plate, and the hinge plate will be limited in one direction by the limiting block.

[0011] Preferably, there are two groups of limit rods, and the two groups of limit rods are symmetrically arranged with the center line of the square column as the symmetry axis, and the limit rods pass through the positioning plate, and the positioning plate is fixedly connected to the square column, so that the square column cannot move further and the screw sleeve cannot move further.

[0012] Preferably, the number of the arc blocks and arc rods is four, and both ends of the arc rods pass through the arc blocks, and an arc spring is fixedly connected between every two groups of arc blocks. When the screw sleeve moves, it will drive the arc block to move through the square column, and the arc block will drive the cylinder to expand the inner side of the bearing and clamp the bearing.

[0013] Preferably, a positioning groove is provided on the top surface of the positioning platform, and the cylinder passes through the positioning groove and is slidably connected.

[0014] Preferably, a lifting cylinder is fixedly connected to the bottom surface of the positioning platform, and a base is fixedly connected to the bottom end of the lifting cylinder.

[0015] Compared with the prior art, the utility model provides a bearing inner ring positioning clamping tool, which has the following beneficial effects:

[0016] 1. The bearing inner ring positioning clamping device will contact the hinged plate when the limit rod is stretched to a certain distance on both sides, and the hinged plate will be limited in one direction by the limit block, so that the limit rod cannot move further, and the limit rod passes through the positioning plate, and the positioning plate is fixedly connected to the square column, so that the square column cannot move further, and the screw sleeve cannot move further, that is, the staff cannot continue to turn the handle, so they know that the maximum clamping force has been reached, and stop turning to prevent the continuous stretching of the cylinder from causing deformation and damage to the bearing.

[0017] 2. The bearing inner ring positioning clamping tool can enable the staff to know when the maximum clamping force is reached through manual operation, avoiding the motor drive causing the motor to get stuck or idle, causing losses. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the internal structure of the positioning platform of the utility model;

[0020] Figure 3 This is a schematic diagram of a partially enlarged structure of the arc block of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the arc-shaped block of the utility model;

[0022] Figure 5 For this utility model Figure 4 A is a schematic diagram of the enlarged structure;

[0023] Figure 6 It is a schematic diagram of the enlarged structure of the fixing strip of the utility model.

[0024] In the figure: 1. positioning platform; 2. positioning part; 21. threaded rotating rod; 22. handle; 23. screw sleeve; 24. square column; 25. arc block; 26. cavity; 27. arc rod; 28. arc spring; 29. ​​slide groove; 210. support rod; 211. cylinder; 212. cross bar; 213. clamping spring; 214. push block; 215. positioning plate; 216. limit rod; 217. square plate; 218. reset spring; 219. fixing strip; 220. hinged plate; 221. limit block; 222. torsion spring; 3. base; 4. lifting cylinder; 5. positioning groove. Implementation

[0025] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a bearing inner ring positioning and clamping tool, including a positioning platform 1, a positioning part 2 is arranged inside the positioning platform 1, and the positioning part 2 includes: a threaded rotating rod 21, a handle 22, a screw sleeve 23, a square column 24, an arc block 25, a cavity 26, an arc rod 27, an arc spring 28, a slide groove 29, a support rod 210, a cylinder 211, a cross bar 212, a clamping spring 213, a pushing block 214, a positioning plate 215, a limiting rod 216, a square plate 217, a reset spring 218, a fixing strip 219, a hinged plate 220, a limiting block 221, and a torsion spring 222.

[0026] The threaded rotating rod 21 passes through the positioning platform 1 and is rotatably connected. A handle 22 is fixedly connected to the left surface of the threaded rotating rod 21. When the inner ring of the bearing needs to be positioned, the inner ring of the bearing is aligned with the cylinder 211 so that the cylinder 211 is located in the ring of the bearing. The handle 22 is turned. The handle 22 drives the threaded rotating rod 21 to rotate when it rotates. The threaded rotating rod 21 passes through and is threadedly connected with a screw sleeve 23. When the threaded rotating rod 21 rotates, since the cylinder 211 passes through the positioning groove 5, the cylinder 211 limits the screw sleeve 23 through the arc block 25 and the square column 24, so that the screw sleeve 23 moves when the threaded rotating rod 21 rotates. The top surface of the screw sleeve 23 is fixedly connected with a square column 24, the top surface of the square column 24 is fixedly connected with an arc block 25, the cavity 26 is opened inside the positioning platform 1, the arc block 25 is slidably connected to the inner side of the cavity 26, the arc block 25 is penetrated by the arc rod 27, the slide groove 29 is opened on the inner side of the arc block 25, the arc block 25 is penetrated and slidably connected by the support rod 210, the top surface of the support rod 210 is fixedly connected with a cylinder 211, the support rod 210 is penetrated and slidably connected by the cross bar 212, the cross bar 212 is fixedly connected to the inner side of the slide groove 29, and a clamping spring 213 is fixedly connected between the support rod 210 and the inner side of the slide groove 29. The bottom end of the support rod 210 passes through and is fixedly connected with a pushing block 214, and the surface of the square column 24 is fixedly connected with a positioning plate 215, and the positioning plate 215 is passed through and slidably connected by the limiting rod 216. When the threaded rotating rod 21 is continuously rotated, the arc block 25 will continuously drive the cylinder 211 to move. When the cylinder 211 completely contacts the inner side of the bearing, the cylinder 211 will be subjected to a reaction force, so that the cylinder 211 applies a force to the pushing block 214 through the support rod 210, but the square column 24 is still moving, so that the pushing block 214 gradually contacts the inclined surface of the limiting rod 216, so that the limiting rod 216 is stretched to both sides, and the bottom surface of the limiting rod 216 is fixedly connected with a square plate 217, and a return spring 218 is fixedly connected between the square plate 217 and the positioning plate 215. A fixing bar 219 is fixedly connected to the inner wall of the positioning platform 1, a hinge plate 220 is hinged on the top surface of the fixing bar 219, a limiting block 221 is fixedly connected to the top surface of the fixing bar 219, a torsion spring 222 is fixedly connected to the right surface of the hinge plate 220, and one end of the torsion spring 222 away from the hinge plate 220 is fixedly connected to the top surface of the fixing bar 219. When the limiting rod 216 is stretched to a certain distance on both sides, it will contact the hinge plate 220, and the hinge plate 220 will be unidirectionally limited by the limiting block 221, so that the limiting rod 216 cannot continue to move. There are two groups of limit rods 216, and the two groups of limit rods 216 are symmetrically arranged with the center line of the square column 24 as the symmetry axis, and the limit rods 216 pass through the positioning plate 215, and the positioning plate 215 is fixedly connected to the square column 24, so that the square column 24 cannot move further and the screw sleeve 23 cannot move further. The staff cannot continue to rotate the handle 22, and thus knows that the maximum clamping force has been reached and stops rotating.There are four groups of arc blocks 25 and arc rods 27, and both ends of the arc rods 27 penetrate the arc blocks 25, and an arc spring 28 is fixedly connected between every two groups of arc blocks 25. When the screw sleeve 23 moves, it drives the arc blocks 25 to move through the square column 24, and the four groups of arc blocks 25 are penetrated by the arc rods 27. When the arc blocks 25 move, the other three groups of arc blocks 25 are spread open through the arc rods 27, and the arc blocks 25 drive the cylinders 211 to spread the inner side of the bearing and clamp the bearing. The top surface of the positioning platform 1 is provided with a positioning groove 5, and the cylinder 211 penetrates the positioning groove 5 and is slidably connected. The bottom surface of the positioning platform 1 is fixedly connected with a lifting cylinder 4, and the bottom end of the lifting cylinder 4 is fixedly connected with a base 3.

[0027] Based on the above embodiment, when the inner ring of the bearing needs to be positioned, the inner ring of the bearing is aligned with the cylinder 211, so that the cylinder 211 is located in the ring of the bearing, and the handle 22 is turned. When the handle 22 is turned, the threaded rotating rod 21 is driven to rotate. When the threaded rotating rod 21 is rotated, since the cylinder 211 passes through the positioning groove 5, the cylinder 211 limits the screw sleeve 23 through the arc block 25 and the square column 24, so that when the threaded rotating rod 21 is rotated, the screw sleeve 23 moves. When the arc block 25 moves, the square column 24 drives the arc block 25 to move, and the four sets of arc blocks 25 are penetrated by the arc rod 27. When the arc block 25 moves, the arc rod 27 causes the other three sets of arc blocks 25 to be spread apart, and the arc block 25 drives the cylinder 211 to spread apart the inner side of the bearing to clamp the bearing. However, when the threaded rotating rod 21 is continuously rotated, the arc block 25 continuously drives the cylinder 211 to move. When the cylinder 211 completely contacts the inner side of the bearing, the cylinder 211 When the limit rod 216 is stretched to a certain distance on both sides, it will resist the hinge plate 220, and the hinge plate 220 will be unidirectionally limited by the limit block 221, so that the limit rod 216 cannot move further, and the limit rod 216 passes through the positioning plate 215, and the positioning plate 215 is fixedly connected to the square column 24, so that the square column 24 cannot move further, and the screw sleeve 23 cannot move further, and the staff cannot continue to turn the handle 22, so that it knows that the maximum clamping force has been reached, and stops rotating to prevent the cylinder 211 from being stretched continuously and causing the bearing to be deformed and damaged. In addition, through manual operation, the staff can know when the maximum clamping force is reached to avoid the motor drive causing the motor to be stuck or idling, causing losses.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bearing inner ring positioning and clamping tool, comprising a positioning table (1), characterized in that: A positioning portion (2) is provided inside the positioning platform (1), and the positioning portion (2) comprises: A threaded rotating rod (21), the threaded rotating rod (21) passes through the positioning platform (1) and is rotatably connected, a handle (22) is fixedly connected to the left surface of the threaded rotating rod (21), a threaded sleeve (23) passes through and is threadedly connected to the threaded rotating rod (21), a square column (24) is fixedly connected to the top surface of the threaded sleeve (23), and an arc block (25) is fixedly connected to the top surface of the square column (24); A cavity (26), the cavity (26) being opened inside the positioning platform (1), the arc block (25) being slidably connected to the inner side of the cavity (26), and the arc block (25) being penetrated by an arc rod (27); A slide groove (29), wherein the slide groove (29) is formed on the inner side of the arc block (25), the arc block (25) is penetrated by a support rod (210) and is slidably connected thereto, a cylinder (211) is fixedly connected to the top surface of the support rod (210), the support rod (210) is penetrated by a cross rod (212) and is slidably connected thereto, the cross rod (212) is fixedly connected to the inner side of the slide groove (29), and a clamping spring (213) is fixedly connected between the support rod (210) and the inner side of the slide groove (29).

2. A bearing inner ring positioning and clamping tool according to claim 1, characterized in that: A push block (214) is passed through and fixedly connected to the bottom end of the support rod (210); a positioning plate (215) is fixedly connected to the surface of the square column (24); the positioning plate (215) is passed through and slidably connected to the limiting rod (216); a square plate (217) is fixedly connected to the bottom surface of the limiting rod (216); and a return spring (218) is fixedly connected between the square plate (217) and the positioning plate (215).

3. The bearing inner ring positioning and clamping tool according to claim 1, characterized in that: The inner wall of the positioning platform (1) is fixedly connected to a fixing bar (219), the top surface of the fixing bar (219) is hinged to a hinge plate (220), the top surface of the fixing bar (219) is fixedly connected to a limit block (221), the right side surface of the hinge plate (220) is fixedly connected to a torsion spring (222), and one end of the torsion spring (222) away from the hinge plate (220) is fixedly connected to the top surface of the fixing bar (219).

4. A bearing inner ring positioning and clamping tool according to claim 2, characterized in that: The number of the limiting rods (216) is two groups, and the two groups of limiting rods (216) are symmetrically arranged with the center line of the square column (24) as the symmetry axis.

5. The bearing inner ring positioning and clamping tool according to claim 1, characterized in that: The number of the arc blocks (25) and the arc rods (27) is four, and both ends of the arc rods (27) pass through the arc blocks (25), and an arc spring (28) is fixedly connected between every two groups of arc blocks (25).

6. The bearing inner ring positioning and clamping tool according to claim 1, characterized in that: The top surface of the positioning platform (1) is provided with a positioning groove (5), and the cylinder (211) passes through the positioning groove (5) and is slidably connected.

7. The bearing inner ring positioning and clamping tool according to claim 1, characterized in that: The bottom surface of the positioning platform (1) is fixedly connected to a lifting cylinder (4), and the bottom end of the lifting cylinder (4) is fixedly connected to a base (3).

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