Bearing internal grinding machine
By adopting a tail-mounted annular cover structure driven by the bearing inner cylindrical grinder, the problem of complexity in the protective cover driving structure is solved, and safety and efficiency are improved.
Patent Information
- Application Number
- CN202421936221.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The protective shield driving structure of existing bearing inner cylindrical grinders is complex, resulting in increased costs and prone to failure of equipment, affecting working efficiency.
The annular cover structure driven by the tailstock is adopted, and the driving mechanism of the electric slide rail and the tailstock is used to realize the automatic opening and closing of the annular cover, and the inner ring of the bearing is clamped through the electric push rod and the grabber to increase stability.
The driving structure of the protective cover is simplified, the equipment failure rate and cost are reduced, while improving operational safety and work efficiency.
Smart Images
Figure CN223084358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing production, in particular to a bearing internal grinding machine. Background Art
[0002] A bearing internal grinding machine is a precision machining equipment, mainly used for high-precision grinding of the inner ring of a bearing to ensure the dimensional accuracy and surface finish of the bearing, and meet the high-performance requirements such as high speed, heavy load and low noise.
[0003] However, in actual operation, although the internal grinding machine is equipped with comprehensive safety protection measures such as a protective cover, a safety door and an emergency stop button, the operator may still forget to close the protective cover and start operating when busy or negligent. Although this behavior seems simple, it hides huge safety hazards. Because once the grinding head or the grinding wheel breaks or splashes, the area not blocked by the protective cover will be directly exposed to the impact of high-speed debris, which may cause serious personal injuries and equipment damage.
[0004] To solve the above problems, currently, a protective cover that moves synchronously is controlled by a control system, that is, when starting to work, the protective cover will actively close. Although this method successfully solves the above problems, because the protective cover also needs to be equipped with mechanisms such as slide rails, this will lead to an increase in cost and also make the structure of the entire bearing internal grinding machine more complex, and thus more prone to failures, resulting in a decrease in work efficiency. Content of the Utility Model
[0005] Aiming at the deficiencies in the prior art, the utility model provides a bearing internal grinding machine, which solves the technical problem that the existing bearing internal grinding machine has a complex protective cover driving structure.
[0006] According to an embodiment of the utility model, a bearing internal grinding machine includes a bed body, a spindle box arranged on one side of the bed body, and a tailstock arranged on the other side of the bed body. A grinding head is arranged on the telescopic rod of the tailstock, a chuck is arranged on the spindle box, the center of the chuck is aligned with the center of the grinding head, an electric slide rail is arranged on the upper side of the bed body, and the tailstock is installed on the electric slide rail;
[0007] An annular cover is movably installed on the tailstock, the annular cover covers the grinding head, electric push rods are circumferentially and evenly distributed on the inner side of the annular cover, and a grasping part is arranged on the piston rod of the electric push rod.
[0008] The technical principle of the utility model is as follows: Since the grinding head of the bearing internal grinding machine is arranged on the tailstock, only one electric slide rail is needed to drive the tailstock. Therefore, by arranging the annular cover on the tailstock, the driving mechanism of the tailstock can be borrowed to complete the opening and closing of the annular cover.
[0009] At the same time, an electric push rod and a grasping part are arranged on the annular cover for discharging the processed bearings.
[0010] At the same time, in order to increase the stability of the chuck for fixing the bearing, when machining the inner ring of the bearing, the grasping part clamps the inner ring of the bearing to increase its stability. At the same time, the annular cover is movably installed on the tailstock, so that the annular cover rotates with the chuck.
[0011] Compared with the prior art, the utility model has the following beneficial effects: through the annular cover movably installed on the tailstock, the electric push rod and the grasping part, it solves the technical problem of the complex driving structure of the protective cover existing in the existing inner ring grinding machine of the bearing.
[0012] Furthermore, the grasping part is of an L-shaped structure, the bottom of the grasping part is the grasping end, a raised tooth is arranged on one side of the grasping part close to the chuck, an annular tooth is arranged at the outer edge of the chuck, and the annular tooth is matched with the raised tooth.
[0013] Furthermore, an elastic rod is arranged between the grasping part and the raised tooth.
[0014] Furthermore, an arc-shaped track is arranged between the top of the end face of the annular cover and the tailstock, and the outer edge of the annular cover is clamped into the arc-shaped track.
[0015] Furthermore, rollers are evenly distributed between the arc-shaped track and the outer edge of the annular cover, and rollers are also evenly distributed between the inner wall and the outer wall of the annular cover and the arc-shaped track.
[0016] Furthermore, an annular track is arranged on one side of the headstock close to the chuck, the annular track is aligned with the outer edge of the annular cover, and the outer edge of the annular cover is clamped into the annular card slot.
[0017] Furthermore, rollers are evenly distributed on the annular track, and the rollers are closely attached to the outer edge of the annular cover.
[0018] Furthermore, the annular cover is of a mesh structure. Description of the Drawings
[0019] Figure 1 It is a schematic structural diagram of the inner circle grinding machine of the bearing in Embodiment 1 of the utility model.
[0020] Figure 2 It is a schematic structural diagram of the annular cover in Embodiment 1 of the utility model.
[0021] Figure 3 It is a schematic connection structure diagram of the grasping part in Embodiment 2 of the utility model.
[0022] Figure 4 It is a schematic structural diagram of the arc-shaped track in Embodiment 2 of the utility model.
[0023] Figure 5Cross-sectional view of the arc-shaped track for Embodiment 2 of the present utility model.
[0024] Figure 6 Cross-sectional view of the annular track for Embodiment 2 of the present utility model.
[0025] Figure 7 Schematic structural diagram of the bearing inner circle grinding machine for Embodiment 3 of the present utility model.
[0026] Figure 8 Cross-sectional view of the inclined track at the arc-shaped structure for Embodiment 3 of the present utility model.
[0027] Figure 9 Cross-sectional view of the inclined track at the rectangular groove structure for Embodiment 3 of the present utility model.
[0028] Figure 10 Schematic structural diagram of the conveying device for Embodiment 3 of the present utility model.
[0029] In the above-mentioned drawings: 100, bed body; 101, electric slide rail; 110, spindle box; 120, tailstock; 121, grinding head; 130, chuck; 131, annular teeth; 200, annular cover; 210, electric push rod; 220, grasping part; 221, grasping end; 222, protruding teeth; 223, elastic rod; 230, arc-shaped track; 231, roller; 240, annular track; 300, inclined track; 400, conveying device; 410, conveying frame; 411, cross bar; 412, baffle; 420, conveyor belt mechanism. Detailed implementation manners
[0030] The technical solutions in the present utility model will be further described below in conjunction with the drawings and embodiments.
[0031] Embodiment 1
[0032] Such as Figure 1 The shown bearing inner circle grinding machine includes a bed body 100, a spindle box 110 disposed on one side of the bed body 100, and a tailstock 120 disposed on the other side of the bed body 100. A grinding head 121 is provided on the telescopic rod of the tailstock 120 for grinding the inner ring of the bearing. A chuck 130 is provided on the spindle box 110 for clamping the inner ring of the bearing. The center of the chuck 130 is aligned with the center of the grinding head 121. An electric slide rail 101 is provided on the upper side of the bed body 100, and the tailstock 120 is installed on the electric slide rail 101. Thus, the electric slide rail 101 can drive the tailstock 120 to move closer to and away from the chuck 130.
[0033] Such as Figure 1-2As shown in the figure, a grasping device is provided on the tailstock 120. Specifically, the grasping device includes an annular cover 200, an electric push rod 210 and a grasping part 220. The annular cover 200 is a mesh structure. The annular cover 200 is installed on the tailstock 120. The annular cover 200 covers the grinding head 121 to play a protective role. The electric push rods 210 are circumferentially and evenly distributed inside the annular cover 200. The grasping part 220 is installed on the piston rod of the electric push rod 210, so that the grasping part 220 can clamp the inner ring of the bearing.
[0034] Embodiment 2
[0035] As Figure 3 shown in the figure, the difference between this embodiment and Embodiment 1 is that the grasping part 220 is an L-shaped structure. The bottom of the grasping part 220 is a grasping end 221, which is used to be stuck on the outer surface of the inner ring of the bearing. A raised tooth 222 is provided on one side of the grasping part 220 close to the chuck 130. An elastic rod 223 is connected between the grasping part 220 and the raised tooth 222. An annular tooth 131 is provided on the outer edge of the chuck 130. The annular tooth 131 cooperates with the raised tooth 222.
[0036] As Figure 4-5 shown in the figure, an arc-shaped track 230 is provided between the top of the end face of the annular cover 200 and the tailstock 120. The outer edge of the annular cover 200 is clamped into the arc-shaped track 230. Among them, rollers 231 are evenly distributed between the arc-shaped track 230 and the outer edge of the annular cover 200. Rollers 231 are also evenly distributed between the inner wall and the outer wall of the arc-shaped track 230 and the annular cover 200.
[0037] As Figure 4 、 6 shown in the figure, an annular track 240 is provided on one side of the spindle box 110 close to the chuck 130. The annular track 240 is aligned with the outer edge of the annular cover 200. The outer edge of the annular cover 200 is clamped into the annular card slot. Specifically, rollers 231 are evenly distributed on the annular track 240, and the rollers 231 are closely attached to the outer edge of the annular cover 200.
[0038] In this embodiment, when machining the inner ring of the bearing, the grasping end 221 is clamped on the inner ring of the bearing. Therefore, the annular cover 200 needs to rotate synchronously with the chuck 130.
[0039] Embodiment 3
[0040] As Figure 7As shown in the figure, the difference between this embodiment and Embodiments 1-2 lies in that: an unloading device is provided on the internal grinding machine for bearings. The unloading mechanism includes an inclined track 300 and a conveying device 400. The conveying device 400 is arranged on one side of the bed body 100 close to the tailstock 120, and the inclined track 300 is installed on the lower side of the tailstock 120. The inclined track 300 inclines towards the conveying device 400. One end of the inclined track 300 is aligned with the conveying device 400, and the other end of the inclined track 300 is aligned with the grasping device, ensuring that the inclined track 300 can receive the inner ring of the bearing dropped from the grasping device and convey it onto the conveying device 400.
[0041] As Figure 7 shown in the figure, the annular cover 200 is of a frustum-shaped structure, and the large end face of the annular cover 200 faces the tailstock 120. The edge of the large end face of the annular cover 200 is aligned with the inclined track 300 to form an inclination, facilitating the inner ring of the bearing to slide onto the inclined track 300. In order to ensure smooth sliding and avoid too fast sliding speed, the inclination of the inclined track 300 is 5-8°, and the inclination of the inclined track 300 is less than or equal to the inclination of the cylindrical surface of the annular cover 200. At the same time, in order to prevent the bearing from being scratched during the dropping and sliding process, the annular cover 200 and the inclined track 300 are made of resin or hard rubber materials, etc., materials with high strength but low hardness.
[0042] As Figure 8-9 shown in the figure, the cross-section of the inclined track 300 near the annular cover 200 is of a circular arc structure, and the cross-section of the inclined track 300 near the conveying device 400 is of a rectangular groove structure. The inclined track 300 gradually changes from one end of the circular arc structure to one end of the rectangular groove structure, so that when the inner ring of the bearing slides in the inclined track 300, the left and right movement amounts gradually decrease, and finally it is accurately unloaded onto the conveying device 400.
[0043] As Figure 7 、 10 shown in the figure, the conveying device 400 includes a conveying frame 410 and a conveyor belt mechanism 420 installed on the conveying frame 410. A cross bar 411 is provided at one end of the conveying frame 410 close to the tailstock 120, and a baffle 412 is hinged on the cross bar 411. There is a gap between the cross bar 411 and the upper surface of the conveyor belt mechanism 420, so that the baffle 412 can hang down naturally, and the lying inner ring of the bearing can push open the baffle 412 and pass through the gap.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A bearing inner circle grinding machine, characterized in that: It includes a bed body, a headstock arranged on one side of the bed body, and a tailstock arranged on the other side of the bed body. A grinding head is provided on the telescopic rod of the tailstock, a chuck is provided on the headstock, the center of the chuck is aligned with the center of the grinding head, an electric slide rail is provided on the upper side of the bed body, and the tailstock is installed on the electric slide rail; An annular cover is movably installed on the tailstock, the annular cover covers the grinding head, electric push rods are circumferentially and evenly distributed on the inner side of the annular cover, and a grasping part is provided on the piston rod of the electric push rod.
2. The internal cylindrical grinder for bearing according to claim 1, characterized in that: The grasping part is of an L-shaped structure, the bottom of the grasping part is the grasping end, a raised tooth is provided on the side of the grasping part close to the chuck, an annular tooth is provided at the outer edge of the chuck, and the annular tooth cooperates with the raised tooth.
3. A bearing inner circle grinding machine according to claim 2, characterized in that: An elastic rod is provided between the grasping part and the raised tooth.
4. A kind of internal grinding machine for bearing inner circles according to claim 1, characterized in that: An arc-shaped track is provided between the top of the end face of the annular cover and the tailstock, and the outer edge of the annular cover is clamped into the arc-shaped track.
5. The internal cylindrical grinder for bearing according to claim 4, wherein: Rollers are evenly distributed between the arc-shaped track and the outer edge of the annular cover, and rollers are also evenly distributed between the arc-shaped track and the inner wall and outer wall of the annular cover.
6. The internal cylindrical grinder for bearing according to claim 1, wherein: An annular track is provided on the side of the headstock close to the chuck, the annular track is aligned with the outer edge of the annular cover, and the outer edge of the annular cover is clamped into the annular card slot.
7. The internal cylindrical grinder for bearing according to claim 6, wherein: Rollers are evenly distributed on the annular track, and the rollers are closely attached to the outer edge of the annular cover.
8. The internal cylindrical grinding machine for bearing according to claim 1, characterized in that: The annular cover is of a mesh structure.