Single-rod bearing center hole polishing device

Abstract

The invention belongs to the technical field of bearing machining, and particularly relates to a single-rod bearing center hole grinding device which comprises a device body, a rotating table is fixed to the top end of the device body, a rotating ring is rotationally connected to the outer portion of the rotating table, a plurality of clamping seats are arranged on the outer side of the rotating ring at equal intervals, and a supporting plate is fixed to one side of the top end of the device body. Two electric telescopic rods are installed at the top end in the supporting plate, a connecting shell is installed at the bottom ends of the electric telescopic rods, a grinding motor is installed at the top end in the connecting shell, and a plurality of grinding heads are arranged below the grinding motor; a first positioning frame is arranged at the bottom end of the supporting plate, and a guide plate is fixed to one side of the first positioning frame; the rotating ring drives the clamping base to rotate, the clamping base can drive the bearing body to rotate to the position of the supporting plate, the first set of grinding heads grind the top end of the bearing body, the second set of grinding heads grind the bottom end of the bearing body, and therefore the top end and the bottom end of the bearing body are ground.

Description

Technical Field

[0001] This invention belongs to the field of bearing processing technology, specifically a grinding device for the center hole of a single-rod bearing. Background Technology

[0002] When manufacturing a single-rod bearing, it is necessary to drill a hole in its center position. However, burrs may remain near the center hole after drilling. These burrs can interfere with the installation of other bearing components, so the center hole of the bearing needs to be ground.

[0003] A patent application with publication number CN107838756A discloses a bearing grinding machine, including a grinding mechanism. The grinding mechanism includes a worktable and an outer ring grinder and an inner ring grinder. A fixing mechanism for fixing the bearing is provided on the worktable between the outer ring grinder and the inner ring grinder. The inner ring grinder and the outer ring grinder are driven to rotate in opposite directions by a linkage. This improves the grinding efficiency and processing quality of the bearing.

[0004] The above-mentioned technical solution involves grinding the inner and outer rings of the bearing. However, only a single bearing can be ground at a time, and only one side of the bearing can be ground at a time. After grinding, the bearing must be flipped over to grind the other side. This operation is cumbersome and affects the processing efficiency.

[0005] Therefore, the present invention provides a grinding device for the center hole of a single-bar bearing. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The single-rod bearing center hole grinding device of the present invention includes a device body, a rotating table fixed at the top of the device body, a rotating ring rotatably connected to the outside of the rotating table, a plurality of clamping seats equally spaced on the outside of the rotating ring, a plurality of clamping claws equally spaced at the ends of the clamping seats, and a connecting rod that can be clamped between the plurality of clamping claws, a support plate fixed on one side of the top of the device body, two electric telescopic rods installed at the top inside the support plate, a flipping mechanism provided between the two electric telescopic rods, the flipping mechanism being able to drive the bearing body to rotate 180°, a connecting shell installed at the bottom of the electric telescopic rods, a grinding motor installed at the top inside the connecting shell, and a plurality of grinding heads provided below the grinding motor; A first positioning frame is provided at the bottom of the support plate, and a guide plate is fixed on one side of the first positioning frame. The first positioning frame is located below one of the electric telescopic rods. The bearing body is guided by a guide plate so that the bottom of the bearing body is parallel to the top of the first positioning frame.

[0008] Preferably, the gripper is internally rotatably connected to a roller, which can press against the connecting rod; When the connecting rod rotates, it drives the roller to rotate.

[0009] Preferably, a second positioning frame is provided below another electric telescopic rod, and a guide plate is also fixed on the side of the second positioning frame near the first positioning frame. The flipping mechanism includes a lifting column provided between the second positioning frame and the first positioning frame, and a connecting arm is provided above the lifting column. The other end of the connecting arm is fixedly connected to the connecting shell near the first positioning frame.

[0010] Preferably, a first slide rail is provided on the inner side of the support plate, and a slider is fixed at one end of the lifting column near the support plate. The slider is slidably connected inside the first slide rail.

[0011] Preferably, a second slide is provided at the top of the first slide, the slider can be slidably connected to the inside of the second slide, and a lifting ring is sleeved on the outside of the lifting column, one side of the lifting ring is fixedly connected to the bottom end of the connecting arm; When the slider slides into the interior of the second slide, the lifting column pushes the bearing body to rotate in the direction of the second positioning frame.

[0012] Preferably, a pressure sensor is fixed to the end of the rotating shaft of the grinding motor, a rotating arm is fixed to the bottom of the pressure sensor, and multiple grinding heads are arranged below the end of the rotating arm.

[0013] Preferably, a rotating column is rotatably connected to the end of the rotating arm, a gear is fixed to the top of the rotating column, and a gear ring is fixed to the bottom of the connecting shell, with the gear and the gear ring meshing together.

[0014] Preferably, a spring is fixed to the top of the grinding head, and the top of the spring is fixedly connected to the bottom of the rotating column.

[0015] Preferably, a telescopic column is fixed to the top of the grinding head, the telescopic column passes through the inside of the spring, and the telescopic column is inserted into the inside of the rotating column.

[0016] Preferably, the top of the grinding head is provided with a bevel, which can grind the edge of the center hole of the bearing body.

[0017] The beneficial effects of this invention are as follows: 1. The single-rod bearing center hole grinding device of the present invention drives the clamping seat to rotate through the rotating ring, which can cause the clamping seat to drive the bearing body to the position of the support plate. The first set of grinding heads grinds the top of the bearing body, and the second set of grinding heads grinds the bottom of the bearing body, thereby realizing the grinding of the top and bottom of the bearing body.

[0018] 2. The single-rod bearing center hole grinding device of the present invention drives the bearing body to rotate by lifting column, which can flip the bearing body, thereby facilitating the second set of grinding heads to grind the bottom surface of the bearing body, and realizing convenient grinding of both sides of the bearing body. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the rotating platform structure in this invention; Figure 3 This is a schematic diagram of the support plate structure in this invention; Figure 4 This is a schematic diagram of the first positioning frame structure in this invention; Figure 5 This is a schematic diagram of the clamping seat structure in this invention; Figure 6 This is a schematic diagram of the electric telescopic rod structure in this invention; Figure 7 This is a schematic diagram of the internal structure of the rotating column in this invention; Figure 8 This is a schematic diagram of the lifting column structure in this invention.

[0021] In the diagram: 1. Main body of the device; 11. Rotating table; 111. Rotating ring; 112. Clamping seat; 113. Clamping claw; 114. Roller; 12. Support plate; 121. First slide rail; 122. Second slide rail; 123. Slider; 124. Lifting column; 125. Lifting ring; 126. Connecting arm; 13. Electric telescopic rod; 131. Connecting shell; 1311. Gear ring; 132. Grinding motor; 133. Pressure sensor; 134. Rotating arm; 135. Grinding head; 136. Spring; 137. Telescopic column; 138. Rotating column; 139. Gear; 14. First positioning frame; 141. Guide plate; 142. Second positioning frame; 2. Bearing body; 21. Connecting rod. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 7As shown in the embodiment of the present invention, a single-rod bearing center hole grinding device includes a device body 1. A rotating table 11 is fixed at the top of the device body 1. A rotating ring 111 is rotatably connected to the outside of the rotating table 11. Multiple clamping seats 112 are evenly spaced on the outer side of the rotating ring 111. Multiple clamping claws 113 are evenly spaced at the ends of the clamping seats 112. The multiple clamping claws 113 can clamp the connecting rod 21. A support plate 12 is fixed on one side of the top of the device body 1. Two electric telescopic rods 13 are installed at the top inside the support plate 12. A flipping mechanism is provided between the two electric telescopic rods 13. The flipping mechanism can drive the bearing body 2 to rotate 180°. A connecting shell 131 is installed at the bottom of the electric telescopic rod 13. A grinding motor 132 is installed at the top inside the connecting shell 131. Multiple grinding heads 135 are provided below the grinding motor 132. A first positioning frame 14 is provided at the bottom end of the support plate 12, and a guide plate 141 is fixed on one side of the first positioning frame 14. The first positioning frame 14 is located below one of the electric telescopic rods 13. Among them, the bearing body 2 is guided by the guide plate 141 so that the bottom of the bearing body 2 is parallel to the top of the first positioning frame 14; During the production of a single-rod bearing, a hole needs to be drilled in the center of the bearing body 2. After drilling, other bearing components need to be installed inside the bearing body 2. However, burrs may exist on the edge of the center hole, which can obstruct the installation process. Therefore, the center hole needs to be ground. During processing, the bearing body 2 is lifted, and one end of the connecting rod 21 is inserted into the end of the clamping seat 112. At this time, the mechanism inside the clamping seat 112 drives the clamping claw 113 to move towards the center of the clamping seat 112. The clamping claw 113 clamps the connecting rod 21 in the center of the clamping seat 112. The rotating table 11 is equipped with a motor and gear structure inside. It can be connected to the rotating ring 111 through the gear, and the motor drives the gear to transmit power to the rotating ring 111. Then, the mechanism inside the rotating table 11 drives the rotating ring 111 to rotate. At this time, the rotating ring 111 drives the clamping... The seat 112 rotates, causing the clamping seat 112 to rotate towards the support plate 12. Then, the clamping seat 112 with the bearing body 2 rotates to the bottom of the support plate 12. The bearing body 2 will first rotate to the bottom of the first electric telescopic rod 13, and then stop rotating the rotating ring 111. The electric telescopic rod 13 pushes the connecting shell 131 downward. At this time, the connecting shell 131 drives the grinding motor 132 and the grinding head 135 to move upward of the bearing body 2. Then, the grinding motor 132 drives multiple grinding heads 135 to rotate. At this time, the grinding head 135 can grind the edge of the center hole of the bearing body 2, and after grinding, the un-grinded bearing body 2 is transported to the bottom of the support plate 12. In this way, the grinding head 135 can automatically grind the bearing body 2. A flipping mechanism is provided between the two electric telescopic rods 13, which can automatically flip the bearing body 2 and automatically grind both sides of the bearing body 2. When the connecting rod 21 is installed into one end of the clamping seat 112, the bearing body 2 may not be parallel to the surface of the device body 1. In this case, when the grinding head 135 grinds the center hole of the bearing body 2, it can cause uneven wear on one side of the bearing body 2. Therefore, a first positioning frame 14 is set below the first electric telescopic rod 13. When the rotating ring 111 drives the clamping seat 112 to move the bearing body 2 and the connecting rod 21 downwards towards the electric telescopic rod 13, the guide plate 141 guides the bearing body 2. When the bearing body 2 is not parallel to the first positioning frame 14, the bearing... The main body 2 will contact the surface of the guide plate 141. At this time, the guide plate 141 will guide the bearing body 2 and rotate the bearing body 2 so that its surface is parallel to the first positioning frame 14 when the bearing body 2 moves to the top of the first positioning frame 14. At this time, the bearing body 2 can be automatically corrected. Then, when the grinding head 135 grinds the bearing body 2, the first positioning frame 14 can support the bottom edge of the bearing body 2, which can make the bearing body 2 more stable when being ground. In this way, the bearing body 2 can automatically correct the angle and prevent uneven grinding when the grinding head 135 grinds the bearing body 2.

[0024] like Figures 1 to 5 As shown, a roller 114 is rotatably connected inside the gripper 113, and the roller 114 can press against the connecting rod 21. When the connecting rod 21 rotates, it drives the roller 114 to rotate. When the bearing body 2 is driven to rotate, it will drive the connecting rod 21 to rotate. At this time, the connecting rod 21 drives the roller 114 to rotate, which allows the bearing body 2 to be adjusted at an angle by rotating the connecting rod 21.

[0025] like Figures 1 to 8 As shown, a second positioning frame 142 is provided below another electric telescopic rod 13. A guide plate 141 is also fixed on the side of the second positioning frame 142 near the first positioning frame 14. The flipping mechanism includes a lifting column 124 provided between the second positioning frame 142 and the first positioning frame 14. A connecting arm 126 is provided above the lifting column 124. The other end of the connecting arm 126 is fixedly connected to the connecting shell 131 near the first positioning frame 14. After the first set of grinding heads 135 finishes grinding the surface of the bearing body 2, the bearing body 2 needs to be flipped over. At this time, the electric telescopic rod 13 first drives the connecting shell 131 to rise. The connecting shell 131 then causes the grinding head 135 to separate from the bearing body 2. The top of the lifting column 124 moves to a position flush with the bottom surface of the bearing body 2, and the electric telescopic rod 13 stops. The rotating ring 111 drives the clamping seat 112 to move the bearing body 2, after the first surface is ground, between the first positioning frame 14 and the second positioning frame 142. When the side of the bearing body 2 closest to the first positioning frame 14 moves above the lifting column 124, the electric telescopic rod 13 drives the connecting shell 131 to continue moving upward. 1. The lifting column 124 is moved upward by the connecting arm 126. At this time, the lifting column 124 pushes the bearing body 2 to rotate. The bearing body 2 rotates to a state perpendicular to the top surface of the device body 1. Then, the rotating ring 111 drives the bearing body 2 to continue to rotate. The bearing body 2 moves towards the guide plate 141 of the second positioning frame 142. The guide plate 141 guides the bearing body 2 so that the surface to be polished rotates towards the top of the second positioning frame 142. After the bearing body 2 rotates to the top of the second positioning frame 142, the other side of the bearing body 2 is placed below the second set of polishing heads 135. The other side of the bearing body 2 can be polished by the second set of polishing heads 135, thereby realizing the automatic flipping of the bearing body 2.

[0026] like Figures 1 to 8 As shown, a first slide rail 121 is provided on the inner side of the support plate 12, and a slider 123 is fixed at one end of the lifting column 124 near the support plate 12. The slider 123 is slidably connected inside the first slide rail 121. In order to maintain the stability of the lifting column 124 when it moves upward, the first slide rail 121 is set to guide the slider 123, so that the lifting column 124 can maintain stable movement during the rising and falling process.

[0027] like Figures 1 to 8 As shown, a second slide 122 is provided at the top of the first slide 121, and the slider 123 can be slidably connected inside the second slide 122. A lifting ring 125 is sleeved on the outside of the lifting column 124, and one side of the lifting ring 125 is fixedly connected to the bottom end of the connecting arm 126. When the slider 123 slides into the interior of the second slide rail 122, the lifting column 124 pushes the bearing body 2 to rotate toward the second positioning frame 142; During the upward movement of the connecting shell 131, the connecting arm 126 will move, and the connecting arm 126 will drive the lifting ring 125 to move upward. At this time, the lifting ring 125 will drive the lifting column 124, and the lifting column 124 will drive the slider 123 to slide inside the first slide rail 121. When the slider 123 slides into the second slide rail 122, the lifting column 124 can drive the bearing body 2 to rotate to the bottom surface facing the second positioning frame 142. At this time, the bearing body 2 will have a certain tilt angle, which makes it easier for the bearing body 2 to be corrected by the guide plate 141 on the side of the second positioning frame 142. At the same time, the lifting ring 125 has an active space inside, and the lifting column 124 moves inside the lifting ring 125 when the second slide rail 122 is slid by the slider 123.

[0028] like Figures 1 to 7 As shown, a pressure sensor 133 is fixed to the end of the rotating shaft of the grinding motor 132, and a rotating arm 134 is fixed to the bottom end of the pressure sensor 133. Multiple grinding heads 135 are arranged below the end of the rotating arm 134. When the grinding motor 132 rotates, the rotating shaft of the grinding motor 132 drives the pressure sensor 133 to rotate, the pressure sensor 133 drives the rotating arm 134 to rotate, and the rotating arm 134 drives the grinding head 135 to rotate. At this time, the multiple grinding heads 135 can rotate in the center hole of the bearing body 2 to grind the center hole of the bearing body 2. Multiple grinding heads 135 can grind the center hole of the bearing body 2 at the same time, thereby improving the grinding efficiency of the grinding head 135 on the center hole of the bearing body 2.

[0029] like Figures 1 to 7 As shown, a rotating column 138 is rotatably connected to the end of the rotating arm 134, a gear 139 is fixed to the top of the rotating column 138, and a gear ring 1311 is fixed to the bottom of the connecting shell 131. The gear 139 and the gear ring 1311 are meshed and connected. When the grinding motor 132 drives the rotating arm 134 to rotate via the pressure sensor 133, the rotating arm 134 drives the gear 139 to rotate inside the gear ring 1311. At this time, the gear ring 1311 can drive the gear 139 to rotate in the opposite direction to the rotating arm 134. The gear 139 drives the rotating column 138 to rotate, and the rotating column 138 drives the grinding head 135 to rotate in the opposite direction. This allows the rotating arm 134 to drive multiple grinding heads 135 to revolve around the central axis while the grinding head 135 is driven to rotate on its own axis, thereby enabling the grinding head 135 to grind the bearing body 2 more quickly.

[0030] like Figures 1 to 7 As shown, a spring 136 is fixed to the top of the grinding head 135, and the top of the spring 136 is fixedly connected to the bottom of the rotating column 138. When the grinding head 135 contacts the bearing body 2, the bearing body 2 pushes the grinding head 135 to compress the spring 136. After being compressed, the spring 136 pushes the rotating column 138 to apply pressure to the rotating arm 134. The rotating arm 134 transmits the pressure to the pressure sensor 133, which can monitor the current pressure in real time. When the grinding head 135 drops to the preset pressure, the movement of the electric telescopic rod 13 stops. The grinding head 135 will wear out after long-term use. Therefore, this method allows the electric telescopic rod 13 to extend downwards to compensate for the wear when the grinding head 135 wears out. However, the grinding head 135 will become unusable after it wears to a certain extent. Therefore, if the pressure value of the pressure sensor 133 is lower than the preset value when the electric telescopic rod 13 extends downwards to its maximum length, it means that the current grinding head 135 is worn too much, which reminds the staff to replace the grinding head 135 in time.

[0031] like Figures 1 to 7 As shown, a telescopic column 137 is fixed to the top of the grinding head 135. The telescopic column 137 passes through the inside of the spring 136 and is inserted into the inside of the rotating column 138. When the rotating column 138 needs to drive the grinding head 135, the grinding head 135 can be driven to rotate by the telescopic column 137. At the same time, there is extra space reserved inside the rotating column 138. When the spring 136 is squeezed, the telescopic column 137 can move inside the rotating column 138, which can facilitate the grinding head 135 to squeeze the spring 136.

[0032] like Figures 1 to 7 As shown, the top of the grinding head 135 is provided with a bevel, which can grind the edge of the center hole of the bearing body 2. When the grinding head 135 grinds the bearing body 2, there may be burrs on the side of the bearing body 2. The side of the bearing body 2 can be ground by the slope of the grinding head 135, thereby achieving a better grinding effect of the grinding head 135 on the bearing body 2.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the center hole of a single-rod bearing, characterized in that: The device includes a main body, a rotating platform fixed to the top of the main body, a rotating ring rotatably connected to the outside of the rotating platform, multiple clamping seats evenly spaced on the outside of the rotating ring, multiple clamping claws evenly spaced at the ends of the clamping seats, and multiple clamping claws that can clamp a connecting rod between the multiple clamping claws, a support plate fixed to one side of the top of the main body, two electric telescopic rods installed at the top inside the support plate, a flipping mechanism between the two electric telescopic rods, the flipping mechanism can drive the bearing body to rotate 180°, a connecting shell installed at the bottom of the electric telescopic rods, a grinding motor installed at the top inside the connecting shell, and multiple grinding heads installed below the grinding motor; A first positioning frame is provided at the bottom of the support plate, and a guide plate is fixed on one side of the first positioning frame. The first positioning frame is located below one of the electric telescopic rods. The bearing body is guided by a guide plate so that the bottom of the bearing body is parallel to the top of the first positioning frame.

2. The single-rod bearing center hole grinding device according to claim 1, characterized in that: The gripper has a rotating internal connection with rollers, which can press against the connecting rod. When the connecting rod rotates, it drives the roller to rotate.

3. The single-rod bearing center hole grinding device according to claim 2, characterized in that: A second positioning frame is provided below another electric telescopic rod. A guide plate is also fixed on the side of the second positioning frame near the first positioning frame. The flipping mechanism includes a lifting column provided between the second positioning frame and the first positioning frame. A connecting arm is provided above the lifting column. The other end of the connecting arm is fixedly connected to the connecting shell near the first positioning frame.

4. The single-rod bearing center hole grinding device according to claim 3, characterized in that: The inner side of the support plate is provided with a first slide rail, and a slider is fixed at one end of the lifting column near the support plate. The slider is slidably connected inside the first slide rail.

5. The single-rod bearing center hole grinding device according to claim 4, characterized in that: The top of the first slide is provided with a second slide, and the slider can slide to the inside of the second slide. A lifting ring is sleeved on the outside of the lifting column, and one side of the lifting ring is fixedly connected to the bottom of the connecting arm. When the slider slides into the interior of the second slide, the lifting column pushes the bearing body to rotate in the direction of the second positioning frame.

6. The single-rod bearing center hole grinding device according to claim 1, characterized in that: A pressure sensor is fixed to the end of the shaft of the grinding motor, and a rotating arm is fixed to the bottom of the pressure sensor. Multiple grinding heads are set below the end of the rotating arm.

7. The single-rod bearing center hole grinding device according to claim 6, characterized in that: A rotating column is rotatably connected to the end of the rotating arm, a gear is fixed to the top of the rotating column, and a gear ring is fixed to the bottom of the connecting shell. The gear and the gear ring are meshed together.

8. The single-rod bearing center hole grinding device according to claim 7, characterized in that: A spring is fixed to the top of the grinding head, and the top of the spring is fixedly connected to the bottom of the rotating column.

9. A single-rod bearing center hole grinding device according to claim 8, characterized in that: The top of the grinding head is fixed with a telescopic column, which runs through the inside of the spring and is inserted into the inside of the rotating column.

10. The single-rod bearing center hole grinding device according to claim 1, characterized in that: The top of the grinding head is beveled, which can grind the edge of the center hole of the bearing body.

Images