Precise grinding machine for outer ring of tapered roller bearing

Abstract

The utility model provides a tapered roller bearing outer ring precision grinding machine which comprises a frame body, a first mounting plate is arranged on the left side of the top of the frame body, a second mounting plate is arranged on the right side of the top of the frame body, a fixing mechanism is arranged on the right side of the first mounting plate, and the fixing mechanism comprises a pipe body. The pipe body is fixedly mounted on the right side of the first mounting plate, a first two-way threaded rod is movably connected into an inner cavity of the pipe body, and first threaded blocks are in threaded connection with the left side and the right side of the surface of the first two-way threaded rod correspondingly. By means of the arrangement, when the clamp is used for fixing the outer ring, the outer side of the bearing outer ring cannot be shielded, the grinding work of the outer ring cannot be affected, the steps and time for repeatedly adjusting the fixing position of the outer ring in the clamp are reduced, then the overall grinding speed of the outer ring is increased, and use of operators is facilitated.

Description

Technical Field

[0001] The utility model relates to a precision grinding machine for the outer ring of a tapered roller bearing, belonging to the technical field of bearings. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Bearings mainly consist of an outer ring, an inner ring, rollers and a cage. The rolling of rollers on the inner and outer rings reduces the friction coefficient. Therefore, when processing bearings, the outer circumferential surface of the inner ring needs to be finely ground to ensure its smoothness while also ensuring its matching dimensions.

[0003] A Chinese patent publication (publication number: CN 217291660 U) discloses a fine grinding machine for precision bearings, including a base, a linear drive unit is arranged on the top of the base, a sliding table is movably installed on the top of the linear drive unit, a grinding unit for grinding the inner ring to be processed is arranged on the top of the sliding table, and a clamping and fixing unit for fixing the inner ring to be processed is arranged on the top of the base, the linear drive unit includes a linear drive component, a high-precision transmission component and an anti-bias component, the high-precision transmission component includes a sliding plate and a rack arranged on both sides of the sliding plate and fixedly installed on the outer wall of the top of the base, the top of the rack is slidably matched with the sliding table through a linear slide rail, and the sliding plate and the opposite side of the two racks are meshed with a group of displacement gears through teeth; even if there is an error in the distance sensor of the utility model, it will be reduced and given to the grinding feed amount, thereby reducing the error and improving the accuracy;

[0004] When the outer ring contacts the grinding device, the outer ring may be displaced due to the centrifugal force when the grinding device rotates. Therefore, the outer ring needs to be fixed when grinding the outer ring of the bearing. However, the fixing devices in most grinding devices often clamp the two sides of the outer ring surface through a clamp. Therefore, during grinding, it is often necessary to adjust the clamp to fix the outer ring position multiple times before the outer ring surface can be completely ground all around. However, the steps of repeated clamping and adjustment are relatively cumbersome, which not only delays the overall grinding speed, but also increases certain labor costs, so it is not convenient to use.

[0005] Therefore, a tapered roller bearing outer ring precision grinding machine is proposed. Utility Model Content

[0006] In view of this, the utility model provides a tapered roller bearing outer ring precision grinding machine to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is implemented as follows: a tapered roller bearing outer ring precision grinding machine, comprising a frame, a first mounting plate is arranged on the left side of the top of the frame, and a second mounting plate is arranged on the right side of the top of the frame;

[0008] A fixing mechanism is provided on the right side of the first mounting plate, and the fixing mechanism includes a tube body, and the tube body is fixedly installed on the right side of the first mounting plate, a first bidirectional threaded rod is movably connected in the inner cavity of the tube body, left and right sides of the surface of the first bidirectional threaded rod are threadedly connected with first screw blocks, two clamps are fixedly installed around the surfaces of the first screw blocks, the inner sides of the eight clamps are movably connected with connecting rods, the outer sides of the eight connecting rods are movably connected with connecting blocks, the outer sides of the eight connecting blocks are fixedly installed with plug blocks, the outer sides of the eight plug blocks are fixedly installed with fixing plates, and the left side of the first bidirectional threaded rod is fixedly connected with a knob.

[0009] Further preferably, both upper and lower sides of the left side of the knob are threadedly connected with limit bolts, and the right sides of the two limit bolts are threadedly connected to the inner surface of the second mounting plate.

[0010] Further preferably, limit rods are fixedly installed on both upper and lower sides of the right side of the second mounting plate, and the inner surfaces of the two first screw blocks are slidably connected to the surfaces of the two limit rods.

[0011] Further preferably, slots are provided around the surface of the tube body, and the eight insert blocks penetrate the inner cavities of the eight slots and extend to the outside of the tube body.

[0012] Further preferably, a first motor is fixedly installed on the left side of the frame body, a second bidirectional threaded rod is fixedly connected to the output end of the first motor, second screw blocks are threadedly connected to the left and right sides of the surface of the second bidirectional threaded rod, the threads at the left and right ends of the surface of the second bidirectional threaded rod are opposite, the first mounting plate is fixedly installed on the left side of the top of the second screw block, and the second mounting plate is fixedly installed on the right side of the top of the second screw block.

[0013] Further preferably, a limiting groove is provided on the top of the frame body, and the bottoms of the two second screw blocks are slidably connected in the inner cavity of the limiting groove.

[0014] Further preferably, a second motor is fixedly mounted on the right side of the second mounting plate, and a grinding device is fixedly connected to the output end of the second motor.

[0015] Further preferably, bottom plates are fixedly mounted on both the front and rear sides of the frame body, and mounting bolts are threadedly connected on both the left and right sides of the tops of the two bottom plates.

[0016] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0017] 1. The utility model sets a fixing mechanism, and when the knob is turned, the first bidirectional threaded rod rotates synchronously. With the rotation of the first bidirectional threaded rod, the first screw block moves inward. At this time, with the movement of the first screw block, the clamping plate moves inward synchronously and drives the connecting rod to flip outward. With the flipping of the connecting rod, the connecting rod pushes the connecting block outward to move. With the movement of the connecting block, the insert block moves outward synchronously. At this time, the insert block pushes the fixing plate outward to move, and the fixing plate fits the inner side of the outer ring of the bearing, thereby fixing the outer ring of the bearing. At the same time, because the inner side is fixed, the fixture will not block the outer side of the outer ring of the bearing when fixing the outer ring, thereby affecting the grinding of the outer ring, reducing the steps and time required to repeatedly adjust the fixed position of the outer ring in the fixture, thereby improving the overall speed of grinding the outer ring, and facilitating the use of operators.

[0018] 2. The utility model can limit the knob by setting a limit bolt to prevent the knob from shaking, thereby affecting the fixing effect of the outer ring; by setting a limit rod, the movement of the first screw block can be limited to prevent the first screw block from rotating synchronously with the first bidirectional threaded rod, thereby affecting the fixing work of the outer ring; by setting a slot, the movement of the insert block can be limited to prevent the insert block from offsetting when moving, thereby causing the outer ring to be unable to be fixed; by setting a first motor, a second bidirectional threaded rod and a second screw block, the position of the grinding device, the fixing mechanism and the outer ring can be easily adjusted, and the grinding work of the outer ring can be conveniently performed; by setting a limit slot, the second screw block can be limited to prevent the second screw block from offsetting when moving, thereby affecting the adjustment work of the outer ring position; by setting a grinding device, the grinding work of the outer ring can be realized and the processing of the outer ring can be completed; by setting mounting bolts, the equipment can be fixed as a whole, and the equipment can be conveniently installed and disassembled.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the grinding device of the utility model;

[0023] Figure 3 This is a schematic diagram of the limit bolt structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the disassembly structure of the fixed plate of the utility model;

[0025] Figure 5 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0026] Figure numerals: 1. frame; 2. fixing mechanism; 201. tube body; 202. first bidirectional threaded rod; 203. first screw block; 204. clamping plate; 205. connecting rod; 206. connecting block; 207. insert block; 208. fixing plate; 209. limiting rod; 210. slot; 211. knob; 212. limiting bolt; 3. first motor; 4. second bidirectional threaded rod; 5. second screw block; 6. first mounting plate; 7. second mounting plate; 8. bottom plate; 9. mounting bolt; 10. second motor; 11. grinding device; 12. limiting groove. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1-5 As shown, the embodiment of the utility model provides a tapered roller bearing outer ring precision grinding machine, including a frame 1, a first mounting plate 6 is arranged on the left side of the top of the frame 1, and a second mounting plate 7 is arranged on the right side of the top of the frame 1;

[0031] A fixing mechanism 2 is provided on the right side of the first mounting plate 6, and the fixing mechanism 2 includes a tube body 201, and the tube body 201 is fixedly installed on the right side of the first mounting plate 6, and a first bidirectional threaded rod 202 is movably connected in the inner cavity of the tube body 201, and first screw blocks 203 are threadedly connected on the left and right sides of the surface of the first bidirectional threaded rod 202, and clamps 204 are fixedly installed around the surfaces of the two first screw blocks 203, and connecting rods 205 are movably connected to the inner sides of the eight clamps 204, and connecting blocks 206 are movably connected to the outer sides of the eight connecting rods 205, and plug blocks 207 are fixedly installed on the outer sides of the eight connecting blocks 206, and fixing plates 208 are fixedly installed on the outer sides of the eight plug blocks 207, and a knob 211 is fixedly connected to the left side of the first bidirectional threaded rod 202.

[0032] By setting the fixing mechanism 2, after the knob 211 is rotated, the first bidirectional threaded rod 202 rotates synchronously. With the rotation of the first bidirectional threaded rod 202, the first screw block 203 moves inward. At this time, with the movement of the first screw block 203, the clamping plate 204 moves inward synchronously and drives the connecting rod 205 to flip outward. With the flipping of the connecting rod 205, the connecting rod 205 pushes the connecting block 206 outward to move. With the movement of the connecting block 206, the insert block 207 moves outward synchronously. At this time, the insert block 207 pushes the fixing plate 208 outward to move, and the fixing plate 208 fits the inner side of the outer ring of the bearing, thereby fixing the outer ring of the bearing. At the same time, because the inner side is fixed, the fixture will not block the outer side of the outer ring of the bearing when fixing the outer ring, thereby affecting the grinding of the outer ring, reducing the steps and time required to repeatedly adjust the fixed position of the outer ring in the fixture, thereby improving the overall speed of grinding the outer ring, and facilitating the use of operators.

[0033] Example 2

[0034] In one embodiment, the upper and lower sides of the left side of the knob 211 are threadedly connected to the limit bolts 212, the right sides of the two limit bolts 212 are threadedly connected to the inner surface of the second mounting plate 7, the upper and lower sides of the right side of the second mounting plate 7 are fixedly installed with limit rods 209, the inner surfaces of the two first screw blocks 203 are slidably connected to the surfaces of the two limit rods 209, slots 210 are opened around the surface of the tube body 201, and eight plug blocks 207 pass through the inner cavities of the eight slots 210 and extend to the outside of the tube body 201, and the left side of the frame body 1 is fixedly installed with a first motor 3, and the output end of the first motor 3 is fixedly connected to the second bidirectional threaded rod 4, and the first The left and right sides of the surface of the two bidirectional threaded rods 4 are threadedly connected with the second screw blocks 5, and the threads on the left and right ends of the surface of the second bidirectional threaded rods 4 are opposite. The first mounting plate 6 is fixedly installed on the left side of the top of the second screw block 5, and the second mounting plate 7 is fixedly installed on the right side of the top of the second screw block 5. A limiting groove 12 is provided on the top of the frame 1, and the bottoms of the two second screw blocks 5 are slidably connected to the inner cavity of the limiting groove 12. A second motor 10 is fixedly installed on the right side of the second mounting plate 7, and a grinding device 11 is fixedly connected to the output end of the second motor 10. The front and rear sides of the frame 1 are fixedly installed with base plates 8, and the left and right sides of the tops of the two base plates 8 are threadedly connected with mounting bolts 9.

[0035] By setting the limiting bolt 212, the knob 211 can be limited to prevent the knob 211 from shaking, thereby affecting the fixing effect of the outer ring. By setting the limiting rod 209, the movement of the first screw block 203 can be limited to prevent the first screw block 203 from rotating synchronously with the first bidirectional threaded rod 202, thereby affecting the fixing of the outer ring. By setting the slot 210, the movement of the plug block 207 can be limited to prevent the plug block 207 from deviating when moving, thereby causing the outer ring to be unable to be fixed. A motor 3, a second bidirectional threaded rod 4 and a second screw block 5 can conveniently adjust the positions of the grinding device 11, the fixing mechanism 2 and the outer ring, so as to facilitate the grinding of the outer ring. By setting a limiting groove 12, the second screw block 5 can be limited to avoid displacement when the second screw block 5 moves, thereby affecting the adjustment of the position of the outer ring. By setting the grinding device 11, the grinding of the outer ring can be realized and the processing of the outer ring can be completed. By setting the mounting bolts 9, the entire equipment can be fixed, so as to facilitate the installation and disassembly of the equipment.

[0036] When the utility model is working: first, the outer ring is placed on the outside of the tube body 201, and then the knob 211 is grasped and rotated, at this time, the first bidirectional threaded rod 202 rotates synchronously, and with the rotation of the first bidirectional threaded rod 202, the first screw block 203 moves inward. At this time, with the movement of the first screw block 203, the clamping plate 204 moves inward synchronously and drives the connecting rod 205 to flip outward. With the flipping of the connecting rod 205, the connecting rod 205 pushes the connecting block 206 outward to move, and with the movement of the connecting block 206, the insert block 207 moves outward synchronously. At this time, the insert block 207 pushes the fixing plate 208 outward to move, and the fixing plate 208 fits the inner side of the outer ring of the bearing, thereby fixing the outer ring of the bearing.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A tapered roller bearing outer ring precision grinding machine, characterized in that: It comprises a frame (1), wherein a first mounting plate (6) is arranged on the left side of the top of the frame (1), and a second mounting plate (7) is arranged on the right side of the top of the frame (1); A fixing mechanism (2) is provided on the right side of the first mounting plate (6), the fixing mechanism (2) comprising a tube body (201), the tube body (201) being fixedly mounted on the right side of the first mounting plate (6), a first bidirectional threaded rod (202) being movably connected in an inner cavity of the tube body (201), first screw blocks (203) being threadedly connected on both left and right sides of the surface of the first bidirectional threaded rod (202), clamping plates (204) being fixedly mounted around the surfaces of two first screw blocks (203), connecting rods (205) being movably connected on the inner sides of the eight clamping plates (204), connecting blocks (206) being movably connected on the outer sides of the eight connecting rods (205), plug blocks (207) being fixedly mounted on the outer sides of the eight plug blocks (207), fixing plates (208) being fixedly mounted on the outer sides of the eight plug blocks (207), and a knob (211) being fixedly mounted on the left side of the first bidirectional threaded rod (202).

2. The tapered roller bearing outer ring precision grinding machine according to claim 1, characterized in that: The upper and lower sides of the left side of the knob (211) are both threadedly connected to limit bolts (212), and the right sides of the two limit bolts (212) are both threadedly connected to the inner surface of the second mounting plate (7).

3. The tapered roller bearing outer ring precision grinding machine according to claim 1, characterized in that: Limit rods (209) are fixedly mounted on both upper and lower sides of the right side of the second mounting plate (7), and the inner surfaces of the two first screw blocks (203) are slidably connected to the surfaces of the two limit rods (209).

4. The tapered roller bearing outer ring precision grinding machine according to claim 1, characterized in that: Slots (210) are provided around the surface of the tube body (201), and the eight insert blocks (207) penetrate the inner cavities of the eight slots (210) and extend to the outside of the tube body (201).

5. The tapered roller bearing outer ring precision grinding machine according to claim 1, characterized in that: A first motor (3) is fixedly mounted on the left side of the frame (1); a second bidirectional threaded rod (4) is fixedly connected to the output end of the first motor (3); second screw blocks (5) are threadedly connected to the left and right sides of the surface of the second bidirectional threaded rod (4); the threads on the left and right ends of the surface of the second bidirectional threaded rod (4) are opposite; the first mounting plate (6) is fixedly mounted on the left side of the top of the second screw block (5); and the second mounting plate (7) is fixedly mounted on the right side of the top of the second screw block (5).

6. The tapered roller bearing outer ring precision grinding machine according to claim 5, characterized in that: A limiting groove (12) is provided on the top of the frame body (1), and the bottoms of the two second screw blocks (5) are slidably connected in the inner cavity of the limiting groove (12).

7. The tapered roller bearing outer ring precision grinding machine according to claim 1, characterized in that: A second motor (10) is fixedly mounted on the right side of the second mounting plate (7), and a grinding device (11) is fixedly connected to the output end of the second motor (10).

8. The tapered roller bearing outer ring precision grinding machine according to claim 1, characterized in that: Bottom plates (8) are fixedly mounted on both the front and rear sides of the frame body (1), and mounting bolts (9) are threadedly connected on both the left and right sides of the tops of the two bottom plates (8).

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