Grinding carriage of bearing grinding machine

Abstract

The utility model relates to the technical field of grinding wheel frames, and discloses a grinding wheel frame of a bearing grinding machine, which comprises a sliding plate, a sliding saddle, a spindle box body, a connecting plate, a servo motor, a grinding wheel, a transmission belt and a spindle, the top of the sliding plate is movably connected with the sliding saddle, the top of the sliding saddle is fixedly connected with the spindle box body, and the top of the spindle box body is fixedly connected with the connecting plate. The top of the connecting plate is fixedly connected with a servo motor, the output end of the servo motor is movably connected with a transmission belt through a movable shaft, the other end of the transmission belt is movably connected with a main shaft, and a grinding wheel is arranged on the outer side of the main shaft. The thermal expansion compensation structure can adjust tiny deformation caused by thermal expansion in real time, so that the constant gap between the grinding wheel and the workpiece is kept, and the stability of the machining precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheel frames, in particular to a grinding wheel frame of a bearing grinder. Background Art

[0002] A bearing grinder is a device specially used for grinding bearings. It is usually composed of a spindle, a feed shaft, a tailstock, a grinding head and a control system. It can effectively grind the outer circle, inner circle and surface of the bearing. The grinding wheel frame of the bearing grinder is one of the key components of the bearing grinder. It is mainly used to install and fix the grinding wheel and ensure that the grinding wheel can run stably and accurately during the grinding process.

[0003] According to the Chinese patent CN201721233932.6, in this application, the effect of automatically adjusting the distance between the power output rod and the clamping rod is achieved by the cooperation of the rotating motor, the threaded rod, the sliding block and the sliding plate, so that the first clamping pad and the second clamping pad can automatically clamp the grinding wheel. Compared with the fixed structure of the traditional grinding wheel frame, the installation and disassembly are very simple. The cooperation of the pin and the slot, and the cooperation of the limit rod and the limit slot make the clamping of the grinding wheel more stable. The utility model has a reasonable structure and is easy to use. It can automatically clamp and release the grinding wheel, and the installation and disassembly of the grinding wheel are very simple.

[0004] Although the combination of the rotating motor, threaded rod, sliding block and sliding plate in the application can effectively deal with the problem of grinding wheel replacement, during use, the grinding wheel frame of the bearing grinder will generate heat due to long-term continuous work, especially under high-speed grinding and high-load conditions, which may cause thermal deformation of the grinding wheel frame, thereby affecting the grinding accuracy. For this reason, we propose a grinding wheel frame for a bearing grinder. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a grinding wheel frame of a bearing grinder, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding wheel frame of a bearing grinder, comprising a slide plate, a slide saddle, a spindle housing, a connecting plate, a servo motor, a grinding wheel, a transmission belt and a spindle, the top of the slide plate is movably connected with the slide saddle, the top of the slide saddle is fixedly connected with the spindle housing, the top of the spindle housing is fixedly connected with the connecting plate, the top of the connecting plate is fixedly connected with the servo motor, the output end of the servo motor is movably connected with the transmission belt through a movable shaft, the other end of the transmission belt is movably connected with the spindle, the outer side of the spindle is provided with a grinding wheel, and further comprising:

[0009] A thermal expansion compensation structure is arranged on the outside of the grinding wheel, and is used to compensate for the elastic deformation of the grinding wheel.

[0010] Preferably, a sleeve shaft is sleeved on the outer side of the main shaft, one end of the sleeve shaft is fixedly connected to a fixing block, and the other end of the fixing block is fixedly connected to a first compensation ring via screws.

[0011] Preferably, four groups of first compensation grooves are provided on the outer side of the first compensation ring, and the axis of the first compensation ring is movably connected to the outer side of the main shaft.

[0012] Preferably, the other end of the first compensation ring is fixedly connected to a second compensation ring, a thread groove is provided on the outer side of the second compensation ring, and a fixing screw is movably connected to the inner wall of one end of the second compensation ring.

[0013] Preferably, the thermal expansion compensation structure includes a second compensation groove and a first compensation spring, four groups of second compensation grooves are opened on the outer side of the second compensation ring at positions corresponding to the four groups of first compensation grooves, and the inner walls of the four groups of second compensation grooves are fixedly connected with the first compensation springs.

[0014] Preferably, a grinding wheel is sleeved on the outer side of the second compensation ring, one side of the grinding wheel is movably connected to a first fixing ring, and the other side of the grinding wheel is movably connected to a second fixing ring.

[0015] Preferably, four groups of second compensation springs are fixedly connected to the outer side of one end of the main shaft, and one end of the four groups of second compensation springs are movably connected to the inner wall of the second compensation ring.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a grinding wheel frame of a bearing grinder, which has the following beneficial effects:

[0018] 1. During the grinding process, the grinding wheel frame of the bearing grinder generates heat due to friction, causing thermal expansion of the grinding wheel, spindle and other components, which may lead to a reduction in machining accuracy. The thermal expansion compensation structure can adjust the slight deformation caused by thermal expansion in real time, thereby maintaining a constant gap between the grinding wheel and the workpiece, ensuring the stability of machining accuracy.

[0019] 2. The grinding wheel frame of the bearing grinder reduces the mechanical stress and fatigue inside the equipment by alleviating the stress caused by thermal expansion. The thermal expansion compensation structure helps to extend the service life of the grinding wheel, spindle and other key components and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a side schematic diagram of the overall structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the thermal expansion compensation structure of the utility model;

[0023] Figure 4 for Figure 3 A local enlarged schematic diagram of point A in the figure.

[0024] In the figure: 1. slide plate; 2. slide saddle; 3. spindle box; 4. connecting plate; 5. servo motor; 6. grinding wheel; 7. transmission belt; 8. sleeve shaft; 9. fixing block; 10. fixing screw; 11. first compensation ring; 12. first compensation groove; 13. second compensation ring; 14. threaded groove; 15. second compensation groove; 16. first compensation spring; 17. second compensation spring; 18. spindle; 19. first fixing ring; 20. second fixing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4A grinding wheel frame of a bearing grinder includes a slide plate 1, a slide saddle 2, a spindle housing 3, a connecting plate 4, a servo motor 5, a grinding wheel 6, a transmission belt 7 and a spindle 18. The top of the slide plate 1 is movably connected with the slide saddle 2, the top of the slide saddle 2 is fixedly connected with the spindle housing 3, the top of the spindle housing 3 is fixedly connected with the connecting plate 4, the top of the connecting plate 4 is fixedly connected with the servo motor 5, the output end of the servo motor 5 is movably connected with the transmission belt 7 through a movable shaft, the other end of the transmission belt 7 is movably connected with the spindle 18, and a grinding wheel 6 is arranged on the outside of the spindle 18, and also includes:

[0027] A thermal expansion compensation structure is arranged on the outside of the grinding wheel 6, which is used to compensate for the elastic deformation of the grinding wheel 6. The servo motor 5 drives the transmission belt 7 through the movable shaft, thereby driving the main shaft 18 to rotate. The grinding wheel 6 is installed on the outside of the main shaft 18. Therefore, when the main shaft 18 rotates, the grinding wheel 6 will also rotate accordingly to realize the processing operation.

[0028] Furthermore, a sleeve shaft 8 is sleeved on the outer side of the main shaft 18 , one end of the sleeve shaft 8 is fixedly connected to a fixing block 9 , and the other end of the fixing block 9 is fixedly connected to a first compensation ring 11 via screws.

[0029] Furthermore, four groups of first compensation grooves 12 are formed on the outer side of the first compensation ring 11 , and the axis of the first compensation ring 11 is movably connected to the outer side of the main shaft 18 .

[0030] Furthermore, the other end of the first compensation ring 11 is fixedly connected to the second compensation ring 13, a threaded groove 14 is provided on the outer side of the second compensation ring 13, and a fixing screw 10 is movably connected to the inner wall of one end of the second compensation ring 13. When the grinding wheel 6 is deformed due to thermal expansion, the relative position between the first compensation ring 11 and the second compensation ring 13 will change.

[0031] Furthermore, the thermal expansion compensation structure includes a second compensation groove 15 and a first compensation spring 16. Four groups of second compensation grooves 15 are opened on the outer side of the second compensation ring 13 at corresponding positions of the four groups of first compensation grooves 12. The inner walls of the four groups of second compensation grooves 15 are fixedly connected with the first compensation spring 16. The first compensation groove 12 and the second compensation groove 15 allow such relative position changes, while the first compensation spring 16 and the second compensation spring 17 provide elastic force to offset part of the thermal expansion force, thereby ensuring that the grinding wheel 6 can still maintain a relatively stable position and processing accuracy after thermal expansion.

[0032] Furthermore, a grinding wheel 6 is sleeved on the outer side of the second compensation ring 13, one side of the grinding wheel 6 is movably connected to a first fixing ring 19, and the other side of the grinding wheel 6 is movably connected to a second fixing ring 20, and both sides of the grinding wheel 6 are fixed by the first fixing ring 19 and the second fixing ring 20 respectively, to ensure the stability of the grinding wheel 6 during rotation.

[0033] Furthermore, four groups of second compensation springs 17 are fixedly connected to the outside of one end of the main shaft 18, and one end of the four groups of second compensation springs 17 are movably connected to the inner wall of the second compensation ring 13. The second compensation springs 17 provide elastic force to offset part of the thermal expansion force, thereby ensuring that the grinding wheel 6 can still maintain a relatively stable position and processing accuracy after thermal expansion.

[0034] Working principle:

[0035] The servo motor 5 drives the transmission belt 7 through the movable shaft, thereby driving the main shaft 18 to rotate. A grinding wheel 6 is installed on the outside of the main shaft 18. Therefore, when the main shaft 18 rotates, the grinding wheel 6 will also rotate to realize the processing operation; on the outside of the grinding wheel 6, a thermal expansion compensation structure is designed to adapt to the thermal expansion of the grinding wheel caused by long-term high-speed rotation and friction. When the grinding wheel 6 is deformed due to thermal expansion, the relative position between the first compensation ring 11 and the second compensation ring 13 will change. The first compensation groove 12 and the second compensation groove 15 allow this relative position change, and the first compensation spring 16 and the second compensation spring 17 provide elastic force to offset part of the thermal expansion force to ensure that the grinding wheel 6 can still maintain a relatively stable position and processing accuracy after thermal expansion. The two sides of the grinding wheel 6 are fixed by the first fixing ring 19 and the second fixing ring 20 respectively to ensure the stability of the grinding wheel 6 during rotation; in summary: the entire equipment drives the grinding wheel 6 to rotate through the servo motor 5 for processing operations, and the thermal expansion compensation structure can effectively cope with the deformation of the grinding wheel 6 caused by thermal expansion to maintain processing accuracy.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding wheel frame of a bearing grinder, comprising a slide plate (1), a slide saddle (2), a spindle housing (3), a connecting plate (4), a servo motor (5), a grinding wheel (6), a transmission belt (7) and a spindle (18), wherein the top of the slide plate (1) is movably connected to the slide saddle (2), the top of the slide saddle (2) is fixedly connected to the spindle housing (3), the top of the spindle housing (3) is fixedly connected to the connecting plate (4), the top of the connecting plate (4) is fixedly connected to the servo motor (5), the output end of the servo motor (5) is movably connected to the transmission belt (7) via a movable shaft, the other end of the transmission belt (7) is movably connected to the spindle (18), and the outer side of the spindle (18) is provided with a grinding wheel (6), characterized in that: Also includes: A thermal expansion compensation structure is arranged on the outside of the grinding wheel (6), and is used to compensate for elastic deformation of the grinding wheel (6).

2. The grinding wheel frame of a bearing grinding machine according to claim 1, characterized in that: A sleeve shaft (8) is sleeved on the outer side of the main shaft (18), one end of the sleeve shaft (8) is fixedly connected to a fixing block (9), and the other end of the fixing block (9) is fixedly connected to a first compensation ring (11) via screws.

3. The grinding wheel frame of a bearing grinding machine according to claim 2, characterized in that: Four groups of first compensation grooves (12) are provided on the outer side of the first compensation ring (11), and the axis of the first compensation ring (11) is movably connected to the outer side of the main shaft (18).

4. The grinding wheel frame of a bearing grinding machine according to claim 2, characterized in that: The other end of the first compensation ring (11) is fixedly connected to a second compensation ring (13), a thread groove (14) is provided on the outer side of the second compensation ring (13), and a fixing screw (10) is movably connected to the inner wall of one end of the second compensation ring (13).

5. The grinding wheel frame of a bearing grinding machine according to claim 4, characterized in that: The thermal expansion compensation structure comprises a second compensation groove (15) and a first compensation spring (16); four groups of second compensation grooves (15) are provided on the outer side of the second compensation ring (13) at positions corresponding to the four groups of first compensation grooves (12); and the inner walls of the four groups of second compensation grooves (15) are fixedly connected to the first compensation springs (16).

6. The grinding wheel frame of a bearing grinding machine according to claim 4, characterized in that: A grinding wheel (6) is sleeved on the outer side of the second compensation ring (13); one side of the grinding wheel (6) is movably connected to a first fixing ring (19); and the other side of the grinding wheel (6) is movably connected to a second fixing ring (20).

7. The grinding wheel frame of a bearing grinding machine according to claim 1, characterized in that: Four groups of second compensation springs (17) are fixedly connected to the outside of one end of the main shaft (18), and one end of the four groups of second compensation springs (17) is movably connected to the inner wall of the second compensation ring (13).

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