Outer ring drilling device of precise angular contact ball bearing

Abstract

The utility model provides an outer ring drilling device of a precise angular contact ball bearing, and relates to the technical field of bearing outer ring machining. The middle position of the upper portion in the machining frame is fixedly connected with the middle position of the top of a center base, and the middle position of the bottom of the center base is fixedly connected with the middle position of the top of an angle display frame. A surrounding indication frame in the device is in sliding connection with a gear ring frame, a motor drives a gear piece to be in meshing transmission with the gear ring frame, accurate rotation of the surrounding indication frame is achieved, meanwhile, a pointer arranged on the inner side of the surrounding indication frame corresponds to the angle value position on an angle display frame, an operator can accurately read and control the drilling angle, and the drilling efficiency is improved. Therefore, the drilling precision and the assembly effect of the bearing are ensured. The bearing outer ring drilling device solves the problems that when a traditional bearing outer ring drilling device adjusts the drilling angle, manual operation often depends on, an accurate indicating and locking mechanism is lacked, angle adjustment is difficult and inaccurate, and then the drilling precision and the bearing assembling effect are affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing outer ring processing, and more specifically relates to an outer ring drilling device for a precision angular contact ball bearing. Background Art

[0002] Ball bearings can withstand both radial and axial loads and operate at relatively high speeds. The larger the contact angle, the higher the axial load capacity. High-precision and high-speed bearings typically use a 15-degree contact angle. This angle increases under axial force. Precision angular contact ball bearings are widely used in key components of equipment such as machine tool spindles, where their accuracy directly impacts the machining accuracy of the equipment.

[0003] Application number CN201721852194.3 discloses a device for drilling holes in the outer rings of precision angular contact ball bearings, comprising a mounting plate, a suspension mechanism for suspending the bearing ring to be drilled, a latch mechanism for positioning the bearing ring, and a drill bit. The suspension mechanism and latch mechanism are both mounted on the mounting plate, and the drill bit is vertically positioned above the suspension mechanism. This utility model provides a device for drilling holes in the outer rings of precision angular contact ball bearings, featuring a simple structure, few parts, and a low price. The device accurately drills holes without the complex structure of a clamping device, nor does it deform the bearing ring due to clamping, which could affect the drilling quality. The device prevents deformation of the bearing ring during drilling, thereby improving the drilling quality of the bearing ring.

[0004] Based on the search of the above patents and the application of existing precision angular contact ball bearing outer ring drilling, it is understood that traditional bearing outer ring drilling devices often rely on manual operation when adjusting the drilling angle, lack precise indication and locking mechanisms, resulting in difficult and inaccurate angle adjustment, which in turn affects the drilling accuracy and bearing assembly effect. In addition, during the drilling process, the clamping stability of the bearing outer ring directly affects the drilling accuracy and efficiency. If the workpiece moves or shakes during the drilling process, it will affect the drilling quality. Utility Model Content

[0005] To address the aforementioned technical issues, the present invention provides a precision angular contact ball bearing outer ring drilling device. This device addresses the problem that conventional bearing outer ring drilling devices often rely on manual operation when adjusting the drilling angle, lack precise indication and locking mechanisms, resulting in difficult and inaccurate angle adjustment, which in turn affects drilling accuracy and bearing assembly. Furthermore, during the drilling process, issues such as the clamping stability of the bearing outer ring directly affect drilling accuracy and efficiency. Furthermore, if the workpiece moves or shakes during the drilling process, this will affect drilling quality.

[0006] The technical solution adopted by this utility model is:

[0007] The outer ring drilling device of a precision angular contact ball bearing includes a processing frame; the middle position of the upper inner part of the processing frame is fixedly connected to the middle position of the top of the center seat, the middle position of the bottom of the center seat is fixedly connected to the middle position of the top of the angle display frame, a gear ring frame is fixedly installed at the outer position of the center seat, and a surrounding indicator frame is slidably connected to the circumference of the gear ring frame. A motor is provided at the top position of the surrounding indicator frame, the bottom position of the motor's rotating shaft is fixedly connected to the middle position of the top of the gear part, the gear part and the gear ring frame are meshed for transmission, a pointer is provided at the inner position of the surrounding indicator frame, and the pointer position of the surrounding indicator frame corresponds to the angle value position of the angle display frame.

[0008] According to an embodiment of the present invention, a telescopically adjustable drilling machine is provided inside the surrounding indicator frame, and the drilling machine is located below the motor.

[0009] According to one embodiment of the present invention, a lifting frame is fixedly connected to the inner middle position of the processing frame, a threaded hole is opened in the middle position of the front end of the lifting frame, and a locking bolt is rotatably connected in the threaded hole of the lifting frame, and the inner position of the locking bolt is in contact with the inner rod position of the lifting frame.

[0010] According to an embodiment of the present invention, the top middle position of the lifting frame is fixedly connected to the bottom middle position of the adjustment frame, a sleeve rod is provided at the top position of the adjustment frame, and a sliding groove is provided on the left and right sides of the upper side of the adjustment frame respectively.

[0011] According to one embodiment of the present invention, the rear end position of the adjustment frame is rotatably connected to a bevel gear, the middle position of the adjustment frame is rotatably connected to a bevel gear, the bevel gear is engaged and transmitted with the rear lower position of the bevel gear ring, and a spiral groove is provided at the top position of the bevel gear ring.

[0012] According to one embodiment of the present invention, an L-shaped splint is slidably connected to each of the two sliding grooves of the adjustment frame. The two splints are symmetrically designed, and arc grooves are provided at the bottom of the two splints. The arc grooves of the splints are engaged with the spiral grooves of the bevel gear ring for transmission. Threaded holes are provided in the middle of the outer sides of the splints, and a positioning bolt is rotatably connected to the threaded hole of each splint.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The surrounding indicator frame in the device is slidably connected to the gear ring frame, and the motor drives the gear member to engage with the gear ring frame to achieve precise rotation of the surrounding indicator frame. At the same time, the pointer set on the inner side of the surrounding indicator frame corresponds to the angle value position on the angle display frame, allowing the operator to accurately read and control the drilling angle, thereby ensuring the drilling accuracy and the assembly effect of the bearing.

[0015] The drilling machine installed inside the surround indicator frame can be telescopically adjusted, allowing the operator to accurately control the drilling depth according to actual needs. This design effectively avoids processing waste caused by inaccurate drilling depth, and improves processing efficiency and product quality.

[0016] The two clamping plates in the device slide toward each other through the meshing transmission of the bevel gear and the bevel gear ring, which can firmly clamp the outer ring of the bearing. The arc groove set at the bottom of the clamping plate meshes with the spiral groove of the bevel gear ring to ensure the stability and accuracy of clamping. At the same time, the design of the positioning bolt enables the operator to lock the position of the clamping plate after clamping the workpiece, further improving the stability during the processing.

[0017] The design of the lifting frame allows the entire adjustment frame and the workpiece on it to be easily raised and lowered. The addition of a locking bolt allows the operator to lock the position of the lifting frame after adjusting the lifting height, ensuring stability and safety during the processing. This design not only improves processing efficiency, but also reduces the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the structure of the outer ring drilling device of the precision angular contact ball bearing from the left side.

[0019] Figure 2 The utility model is a schematic side view of the structure of the outer ring drilling device of the precision angular contact ball bearing.

[0020] Figure 3 It is a schematic diagram of the overall left-side structure of the processing frame of the present utility model.

[0021] Figure 4 It is a half-section top view of the structure of the lifting frame of the utility model.

[0022] Figure 5 It is a half-section side structural schematic diagram of the lifting frame of the present invention.

[0023] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0024] 1. Processing frame; 101. Center seat; 102. Angle display frame; 103. Gear ring frame; 104. Surround indicator frame; 105. Motor; 106. Gear part; 107. Drilling machine; 2. Lifting frame; 201. Locking bolt; 202. Adjusting frame; 203. Bevel gear; 204. Bevel gear ring; 205. Clamp; 206. Positioning bolt. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by ordinary technicians in the field to which the present invention belongs. Similar words such as "one", "an" or "the" used in the specification and claims of the present utility model patent application do not indicate quantity limitations, but rather indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0028] Example 1: As shown in the attached Figure 1 To the attached Figure 5 As shown:

[0029] The utility model provides an outer ring drilling device for a precision angular contact ball bearing, comprising a processing frame 1; the middle position of the upper interior of the processing frame 1 is fixedly connected to the middle position of the top of a center seat 101, the middle position of the bottom of the center seat 101 is fixedly connected to the middle position of the top of an angle display frame 102, a gear ring frame 103 is fixedly installed at the outer position of the center seat 101, a surrounding indicator frame 104 is slidably connected to the circumference of the gear ring frame 103, a motor 105 is provided at the top position of the surrounding indicator frame 104, the bottom position of the rotating shaft of the motor 105 is fixedly connected to the middle position of the top of a gear member 106, the gear member 106 is meshed with the gear ring frame 103 for transmission, a pointer is provided at the inner position of the surrounding indicator frame 104, and the pointer position of the surrounding indicator frame 104 corresponds to the angle value position of the angle display frame 102.

[0030] A telescopically adjustable drilling machine 107 is provided inside the surrounding indicator frame 104 , and the drilling machine 107 is located below the motor 105 .

[0031] Among them, the lifting frame 2 is fixedly connected to the middle position inside the processing frame 1, and a threaded hole is opened in the middle position of the front end of the lifting frame 2. A locking bolt 201 is rotatably connected in the threaded hole of the lifting frame 2, and the inner position of the locking bolt 201 is in contact with the inner rod position of the lifting frame 2.

[0032] The top middle position of the lifting frame 2 is fixedly connected to the bottom middle position of the adjusting frame 202 . A sleeve rod is provided at the top position of the adjusting frame 202 , and a slide groove is provided on the left and right sides of the upper side of the adjusting frame 202 .

[0033] Among them, the rear end position of the adjusting frame 202 is rotatably connected to the bevel gear 203, the middle position of the adjusting frame 202 is rotatably connected to the bevel gear 203, the bevel gear 203 is engaged with the rear lower position of the bevel gear ring 204 for transmission, and a spiral groove is provided at the top position of the bevel gear ring 204.

[0034] Among them, an L-shaped splint 205 is slidably connected in the two sliding grooves of the adjustment frame 202, and the two splints 205 are symmetrically designed. The bottom positions of the two splints 205 are provided with arc grooves. The arc groove positions of the splints 205 are engaged with the spiral groove positions of the bevel gear ring 204 for transmission. A threaded hole is opened in the middle position of the outer side of the splint 205, and a positioning bolt 206 is rotatably connected in the threaded hole of each splint 205.

[0035] When in use: first place the processing frame 1 to a suitable position, and put the outer ring of the bearing to be drilled on the outer side of the sleeve rod of the adjustment frame 202, then rotate the bevel gear 203, and the meshing transmission of the bevel gear 203 and the bevel gear ring 204 drives the two clamps 205 to slide in opposite positions until the inner positions of the positioning bolts 206 provided on the two clamps 205 are respectively in contact with the outer sides of the bearing outer ring, and the bearing outer ring is centered and limited to the upper middle position of the lifting frame 2.

[0036] The locking bolt 201 is used for adjustment to lock the height position of the lifting frame 2, which facilitates the overall lifting height of the adjustment frame 202 so that the hole position of the bearing outer ring outside the sleeve rod of the adjustment frame 202 is flush with the position of the drilling machine 107.

[0037] During the drilling process, the motor 105 is started, and the rotating shaft of the motor 105 will drive the gear part 106 to rotate. Through the cooperation between the gear part 106 and the gear ring frame 103, the surrounding indicator frame 104 will rotate around the gear ring frame 103. The pointer set on the inner side of the surrounding indicator frame 104 corresponds to the angle value position on the angle display frame 102, so as to accurately read the drilling angle for drilling processing.

[0038] Although the present application has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the concept and scope of the present application as defined in the appended claims. Although this specification contains many specific implementation details, these should not be interpreted as limitations on the scope of protection claimed in this application, but rather as descriptions of features specific to specific embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. The outer ring drilling device of the precision angular contact ball bearing is characterized by: The invention comprises a processing frame (1); the middle position of the inner upper part of the processing frame (1) is fixedly connected to the middle position of the top of the center seat (101); the middle position of the bottom of the center seat (101) is fixedly connected to the middle position of the top of the angle display frame (102); a gear ring frame (103) is fixedly installed at the outer position of the center seat (101); a surrounding indicator frame (104) is slidably connected to the circumference of the gear ring frame (103); a motor (105) is provided at the top position of the surrounding indicator frame (104); the bottom position of the rotating shaft of the motor (105) is fixedly connected to the middle position of the top of the gear member (106); the gear member (106) and the gear ring frame (103) are meshed for transmission; a pointer is provided at the inner position of the surrounding indicator frame (104); the pointer position of the surrounding indicator frame (104) corresponds to the angle value position of the angle display frame (102).

2. The outer ring drilling device for a precision angular contact ball bearing according to claim 1, characterized in that: A telescopically adjustable drilling machine (107) is provided inside the surrounding indicator frame (104), and the drilling machine (107) is located below the motor (105).

3. The outer ring drilling device of a precision angular contact ball bearing according to claim 1, characterized in that: The lifting frame (2) is fixedly connected to the middle position of the interior of the processing frame (1), a threaded hole is provided at the middle position of the front end of the lifting frame (2), and a locking bolt (201) is rotatably connected in the threaded hole of the lifting frame (2), and the inner side position of the locking bolt (201) contacts the inner rod position of the lifting frame (2).

4. The outer ring drilling device for a precision angular contact ball bearing according to claim 3, characterized in that: The top middle position of the lifting frame (2) is fixedly connected to the bottom middle position of the adjustment frame (202), a sleeve rod is provided at the top position of the adjustment frame (202), and a slide groove is provided at the left and right sides of the upper side of the adjustment frame (202), respectively.

5. The outer ring drilling device for a precision angular contact ball bearing according to claim 4, characterized in that: The rear end of the regulating frame (202) is rotatably connected to a bevel gear (203), and the middle of the regulating frame (202) is rotatably connected to a bevel gear (203). The bevel gear (203) is meshed with the lower rear position of the bevel gear ring (204) for transmission, and a spiral groove is provided at the top of the bevel gear ring (204).

6. The outer ring drilling device for a precision angular contact ball bearing according to claim 5, characterized in that: An L-shaped splint (205) is slidably connected in the two sliding grooves of the adjustment frame (202), and the two splints (205) are symmetrically designed. The bottom positions of the two splints (205) are both provided with arc grooves. The arc groove positions of the splints (205) are meshed with the spiral groove positions of the bevel gear ring (204) for transmission. A threaded hole is opened at the middle position of the outer side of the splint (205), and a positioning bolt (206) is rotatably connected in the threaded hole of each splint (205).

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