Electric spindle bearing dismounting tool

Abstract

The utility model relates to the technical field of bearing dismounting tools, in particular to an electric spindle bearing dismounting tool which comprises a first chuck and a second chuck, the first chuck is in sliding connection with the second chuck, and the first chuck and the second chuck can get close to each other. The first chuck and the second chuck are movably connected with lifting pins, the diameter of each lifting pin is smaller than the aperture of an unthreaded hole, the first chuck and the second chuck drive the lifting pins to rotate in a sliding mode, and a locking piece used for locking the first chuck and the second chuck is arranged between the first chuck and the second chuck. The first chuck and the second chuck are each provided with a drawing assembly used for drawing the first chuck and the second chuck. The electric spindle bearing dismounting device has the effects of facilitating direct dismounting of the electric spindle bearing and improving the dismounting efficiency of the bearing.

Description

Technical Field

[0001] This application relates to the technical field of bearing disassembly tools, and in particular to an electric spindle bearing disassembly tool. Background Art

[0002] An electric spindle is a common device in machining. The installation of the mandrel of the electric spindle requires the use of bearings. The bearings provide stable support, bear the load on the mandrel, and at the same time, can improve the installation accuracy of the mandrel to improve the machining accuracy of the workpiece. In the actual production process of the electric spindle, if the electric spindle has problems, it is necessary to repair the electric spindle in time. During the repair, the bearings on the mandrel of the electric spindle often need to be disassembled.

[0003] For example, the invention patent with the publication number CN118023985A discloses a magnetic material hole machining electric spindle, which includes a housing and a mandrel. Bearings and bearing seats are installed on the side wall of the mandrel. A light hole is provided on the side wall of the bearing seat. When installing the bearings, an interference fit installation method is usually adopted. Currently, during the disassembly process of the bearings, a disassembly tool is usually used. When disassembling the bearings, the staff needs to first disassemble the electric spindle from the machine tool, and then use the disassembly tool to disassemble the bearings and bearing seats inside the electric spindle.

[0004] The above-mentioned disassembly process of the electric spindle bearings requires the prior disassembly of the electric spindle, which affects the disassembly efficiency of the bearings and there is room for improvement. Utility Model Content

[0005] In order to facilitate the direct disassembly of the electric spindle bearings and improve the disassembly efficiency of the bearings, this application provides an electric spindle bearing disassembly tool.

[0006] An electric spindle bearing disassembly tool provided by this application adopts the following technical solutions:

[0007] An electric spindle bearing disassembly tool includes a first chuck and a second chuck. The first chuck is slidably connected to the second chuck. The first chuck and the second chuck can approach each other. Top pins are movably connected to both the first chuck and the second chuck. The diameter of the top pin is smaller than the diameter of the light hole. The first chuck and the second chuck slide to drive the top pin to rotate. A locking member is provided between the first chuck and the second chuck to lock the first chuck and the second chuck. Pulling components for pulling the first chuck and the second chuck are provided on both the first chuck and the second chuck.

[0008] By adopting the above technical solution, when disassembling the electric spindle bearing, the first chuck and the second chuck approach the bearing seat. At this time, one end of the ejector pin on the chuck is located in the light hole, and the other end is located on the first chuck or the second chuck. The first chuck and the second chuck slide closer to each other, and the ejector pin tilts under the action of the first chuck and the second chuck. The outer wall of the ejector pin abuts against the inner wall of the bearing seat. At this time, the locking member locks the first chuck and the second chuck, and the first chuck and the second chuck are pulled by the pulling component. This process realizes the direct disassembly of the electric spindle bearing and improves the disassembly efficiency of the bearing.

[0009] Optionally, through holes are formed in the side walls of the first chuck and the second chuck, and the ejector pin is in clearance fit with the through holes.

[0010] By adopting the above technical solution, the ejector pin is located in the through hole, and when the first chuck and the second chuck approach each other, the side wall of the ejector pin abuts against the inner wall of the through hole. The ejector pin tilts under the action of the first chuck and the second chuck, and the side wall of the ejector pin abuts against the inner wall of the light hole, enhancing the connection between the ejector pin and the bearing seat.

[0011] Optionally, connection holes are formed in the side walls of the first chuck and the second chuck, the locking member is a locking screw, the locking screws are respectively threadedly connected to the side walls of the first chuck and the second chuck, and the locking screws are located in the connection holes.

[0012] By adopting the above technical solution, when the locking screws are loosened, the first chuck and the second chuck move away from each other, and when the locking screws are tightened, the first chuck and the second chuck move closer to each other, making the sliding between the first chuck and the second chuck controllable and facilitating the locking of the relative positions of the first chuck and the second chuck.

[0013] Optionally, the pulling component includes a connecting rod and a threaded block fixed to one end of the connecting rod, and the threaded block is threadedly connected to the side wall of the first chuck or the second chuck.

[0014] By adopting the above technical solution, the threaded block of the pulling component is connected to the first chuck or the second chuck. The staff pulls the connecting rod, and the connecting rod drives the first chuck and the second chuck to slide outwards, thereby disassembling the bearing seat and realizing the disassembly of the bearing.

[0015] Optionally, the pulling component further includes an end handle fixed to the end of the connecting rod away from the threaded block.

[0016] By adopting the above technical solution, pulling the connecting rod through the end handle drives the first chuck and the second chuck to slide, facilitating the operation of the staff.

[0017] Optionally, a punching block is slidably connected to the outer wall of the connecting rod, and the side wall of the punching block can abut against the inner wall of the end handle.

[0018] By adopting the above technical solution, when pulling out the first chuck and the second chuck, the punching block slides on the connecting rod. When the outer wall of the punching block abuts against the inner wall of the end handle, the punching block exerts an impact force on the end handle, and the end handle drives the connecting rod to slide outwards. The first chuck and the second chuck drive the bearing seat to slide outwards from the electric spindle, increasing the efficiency of disassembling the bearing seat.

[0019] Optionally, a plurality of the through holes are arranged at uniform intervals.

[0020] By adopting the above technical solution, the arrangement of a plurality of through holes facilitates the positioning of the first chuck and the second chuck on the optical hole of the bearing seat, increasing the stability of the first chuck and the second chuck when clamping the bearing seat.

[0021] Optionally, both the first chuck and the second chuck are in a semi-circular shape.

[0022] By adopting the above technical solution, the first chuck and the second chuck are close to each other to form a ring. The ring structure is beneficial to the operation of the first chuck and the second chuck in the electric spindle, improving the efficiency of disassembling the bearing.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When using the electric spindle bearing disassembly tool, bring the first chuck and the second chuck close to the bearing seat. One end of the top pin is located inside the bearing seat. The first chuck and the second chuck approach each other. When the side wall of the top pin abuts against the inner wall of the bearing seat, use the locking member to lock the first chuck and the second chuck. At this time, pull the first chuck and the second chuck in the direction away from the electric spindle through the pulling component. This process realizes the direct disassembly of the electric spindle bearing and improves the bearing disassembly efficiency.

[0025] 2. When the pulling component pulls the first chuck and the second chuck, the punching block slides on the connecting rod. When the side wall of the punching block abuts against the inner wall of the end handle, the punching block exerts an impact force on the end handle. Under the action of the impact force of the punching block, the end handle drives the connecting rod to slide outwards from the electric spindle, and the first chuck and the second chuck drive the bearing seat to slide outwards from the electric spindle, improving the bearing disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an overall structural schematic diagram of an electric spindle bearing disassembly tool in an embodiment of the present application.

[0027] Figure 2 is a cross-sectional view of the electric spindle bearing disassembly tool.

[0028] Reference numerals: 1, first chuck; 2, second chuck; 3, top pin; 4, locking member; 5, pulling component; 6, through hole; 7, connecting hole; 51, connecting rod; 52, threaded block; 53, end handle; 8, punching block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will further elaborate on this application in conjunction with the attached Figure 1-2 drawings for a more detailed description.

[0030] An embodiment of this application discloses a disassembly tool for an electric spindle bearing.

[0031] Referring to Figure 1 , a disassembly tool for an electric spindle bearing includes a first chuck 1, a second chuck 2, and a pulling component 5 disposed on the first chuck 1. The pulling component 5 includes a threaded block 52 threadedly fixed to the second chuck 2, a connecting rod 51 fixed to one end of the threaded block 52 away from the second chuck 2, and an end handle 53 fixed to one end of the connecting rod 51 away from the threaded block 52. A punching block 8 is slidably connected to the connecting rod 51. When disassembling the electric spindle bearing, the punching block 8 slides on the connecting rod 51. When the side wall of the punching block 8 abuts against the inner wall of the end handle 53, the punching block 8 applies an impact force to the end handle 53, and the end handle 53 drives the connecting rod 51 to slide. Under the action of the connecting rod 51, the second chuck 2 drives the first chuck 1 to slide outward from the electric spindle, facilitating the disassembly of the electric spindle bearing.

[0032] Locking members 4 are provided on both the first chuck 1 and the second chuck 2. The locking members 4 are locking screws, and the locking members 4 are threadedly connected to the first chuck 1 and the second chuck 2 respectively. Connecting holes 7 are formed on the side walls of both the first chuck 1 and the second chuck 2, and the locking members 4 are threadedly connected into the connecting holes 7. When the locking members 4 are loosened, the first chuck 1 and the second chuck 2 move away from each other. When the locking members 4 are tightened, the first chuck 1 and the second chuck 2 move closer to each other. Under the action of the tightened screws, the relative positions of the first chuck 1 and the second chuck 2 are fixed.

[0033] Referring to Figure 1 and Figure 2 , a number of through holes 6 are formed on the side walls of both the first chuck 1 and the second chuck 2. A top pin 3 is installed in the through holes 6, and the top pin 3 has a clearance fit with the through holes 6. One end of the top pin 3 is located in a light hole. When the first chuck 1 and the second chuck 2 move away from each other, the side wall of the top pin 3 abuts against one side of the bearing seat close to the mandrel. When the first chuck 1 and the second chuck 2 move closer to each other, the side wall of the top pin 3 abuts against one side of the bearing seat close to the housing. At this time, when the locking screw is tightened, under the action of the first chuck 1 and the second chuck 2, the top pin 3 abuts against the inner walls of the through holes 6 and the light hole respectively. The punching block 8 drives the threaded block 52 to pull the first chuck 1 and the second chuck 2, and the first chuck 1 and the second chuck 2 drive the bearing seat to slide outward from the electric spindle, improving the disassembly efficiency of the bearing.

[0034] The implementation principle of a disassembly tool for an electric spindle bearing in an embodiment of the present application is as follows: When disassembling the electric spindle bearing, the first chuck 1 and the second chuck 2 approach each other. Under the sliding drive of the first chuck 1 and the second chuck 2, the side wall of the ejector pin 3 abuts against the side wall of the bearing housing. The locking member 4 is tightened to lock the first chuck 1 and the second chuck 2. At this time, the impact block 8 slides on the connecting rod 51. When the side wall of the impact block 8 abuts against the inner wall of the end handle 53, the impact block 8 applies an impact force to the end handle 53. The end handle 53 drives the connecting rod 51 to slide, driving the first chuck 1 and the second chuck 2 to slide outward from the electric spindle. Under the clamping action of the ejector pin 3, the bearing housing slides outward from the electric spindle. This process realizes the direct disassembly of the electric spindle bearing and improves the disassembly efficiency of the bearing.

[0035] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electric spindle bearing removal tool, characterized in that: The invention comprises a first chuck (1) and a second chuck (2), wherein the first chuck (1) and the second chuck (2) are slidably connected, the first chuck (1) and the second chuck (2) can approach each other, the first chuck (1) and the second chuck (2) are both movably connected with a push pin (3), the diameter of the push pin (3) is smaller than the aperture of the light hole, the first chuck (1) and the second chuck (2) slide to drive the push pin (3) to rotate, a locking member (4) for locking the first chuck (1) and the second chuck (2) is provided between the first chuck (1) and the second chuck (2), and a pulling component (5) for pulling the first chuck (1) and the second chuck (2) is provided on the first chuck (1) and the second chuck (2).

2. The electric spindle bearing removal tool according to claim 1, characterized in that: A through hole (6) is provided on the side walls of the first chuck (1) and the second chuck (2), and the ejector pin (3) is loosely fitted in the through hole (6).

3. The electric spindle bearing removal tool according to claim 2, characterized in that: The side walls of the first chuck (1) and the second chuck (2) are both provided with connecting holes (7), and the locking member (4) is a locking screw, which is threadedly connected to the side walls of the first chuck (1) and the second chuck (2), respectively, and the locking screw is located in the connecting hole (7).

4. The electric spindle bearing removal tool according to claim 2, characterized in that: The pulling assembly (5) comprises a connecting rod (51) and a threaded block (52) fixed to one end of the connecting rod (51); the threaded block (52) is threadedly connected to the side wall of the first chuck (1) or the second chuck (2).

5. The electric spindle bearing removal tool according to claim 4, characterized in that: The pulling assembly (5) further comprises an end handle (53) fixed to an end of the connecting rod (51) away from the threaded block (52).

6. The electric spindle bearing removal tool according to claim 5, characterized in that: A punch block (8) is slidably connected to the outer wall of the connecting rod (51), and the side wall of the punch block (8) can abut against the inner wall of the end handle (53).

7. The electric spindle bearing removal tool according to claim 2, characterized in that: A plurality of through holes (6) are evenly spaced.

8. The electric spindle bearing removal tool according to claim 1, characterized in that: The first chuck (1) and the second chuck (2) are both semicircular in shape.

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