CN217530235U - High-precision mechanical expansion and contraction type backing bearing outer ring grinding device - Google Patents
High-precision mechanical expansion and contraction type backing bearing outer ring grinding device Download PDFInfo
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- CN217530235U CN217530235U CN202220944380.4U CN202220944380U CN217530235U CN 217530235 U CN217530235 U CN 217530235U CN 202220944380 U CN202220944380 U CN 202220944380U CN 217530235 U CN217530235 U CN 217530235U
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Abstract
The utility model relates to a grinding device, more specifically the high accuracy machinery harmomegathus formula back lining bearing inner race grinding device that says so. The utility model provides a high accuracy machinery harmomegathus formula backing bearing inner race grinding device, includes dabber, connecting bolt, flange, first guide bolt and the arc interior conical surface piece that rises, the left end of dabber is connected with the flange through a plurality of connecting bolt, is the annular on the flange and is provided with four first guide bolt, and four first guide bolt threaded connection are on the flange, and the arc interior conical surface piece that rises divide into four lamellas, and the four lamellas of the arc interior conical surface piece that rises are radial sliding connection respectively are on four first guide bolt. The high-precision grinding of the backing bearing outer ring is realized on a common cylindrical grinding machine or a special grinding machine for a roller, and a special hydraulic special grinding device is replaced, so that the grinding cost is reduced.
Description
Technical Field
The utility model relates to a grinding device, more specifically the high accuracy machinery harmomegathus formula back lining bearing inner race grinding device that says so.
Background
In the production process of cold rolling precision stainless steel plate strips, particularly when precision plate strips with the thickness of 0.05mm or less and wide strip steel width are rolled, 20-roller integral memorial archway sendzimir rolling mills are generally adopted for rolling. Backing bearings are one of the most important components of the mill. The back lining bearing bears all rolling force and various impact loads in the process of rolling strip steel, so that the outer surface of the bearing outer ring is easy to generate fatigue damage or fatigue cracks and other defects. The grinding requirement of the outer surface of the bearing outer ring is very high, wherein the most important technical conditions are to ensure the coaxiality, the roundness, the cylindricity, the roughness and the like of the inner circle and the outer circle of the outer ring. The grinding of the outer ring of the backing bearing is generally finished by returning to a bearing production plant or grinding by a steel rolling mill. The former has high repair cost and long construction period and is difficult to meet the requirements of field production. The latter requires special grinding tools to complete. In order to ensure the grinding precision, a hydraulic special tool is generally adopted, but the hydraulic special tool is expensive, low in use efficiency and low in grinding precision.
Disclosure of Invention
The utility model provides a high accuracy machinery harmomegathus formula back lining bearing inner race grinding device, its beneficial effect is for realizing back lining bearing inner race high accuracy grinding and replacing dedicated special grinding device of dedicated hydraulic pressure on ordinary cylindrical grinder or the special grinding machine of roll to reduce grinding cost.
The utility model provides a high accuracy machinery harmomegathus formula backing bearing inner race grinding device, includes dabber, connecting bolt, flange, first guide bolt and the arc interior conical surface piece that rises, the left end of dabber is connected with the flange through a plurality of connecting bolt, is the annular on the flange and is provided with four first guide bolt, and four first guide bolt threaded connection are on the flange, and the arc interior conical surface piece that rises divide into four lamellas, and the arc interior conical surface piece that rises is radial sliding connection respectively on four first guide bolt.
The high-precision mechanical expansion and contraction type backing bearing outer ring grinding device further comprises second guide bolts, the arc-shaped inner conical surface expansion block is sleeved on the mandrel, the right ends of the four sections of the arc-shaped inner conical surface expansion block are in threaded connection with the second guide bolts, and the four second guide bolts are in radial sliding connection with the mandrel.
The utility model provides a high accuracy machinery harmomegathus formula backing bearing inner race grinding device still includes outer taper sleeve, and outer taper sleeve overlaps at the dabber, is the annular on the outer taper sleeve and is provided with four through-holes that correspond second guide bolt, and four second guide bolt pass four through-holes respectively, and four through-hole diameters are greater than second guide bolt's diameter, and outer taper sleeve endwise slip connects at the spindle, and the outer conical surface of outer taper sleeve cooperatees with the interior conical surface of arc piece that rises.
The workpiece is sleeved on the periphery of the arc-shaped inner conical surface expansion block, and the left side of the workpiece is propped against the flange.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of a high precision mechanical collapsible backing bearing outer race grinding apparatus;
FIG. 2 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic view of an inner conical surface expanding block;
fig. 4 is a cross-sectional view taken along plane D-D of fig. 3.
In the figure: a mandrel 1; a connecting bolt 2; a flange 3; a first guide bolt 4; an arc-shaped inner conical surface expansion block 5; a workpiece 6; a spacer 7; a second guide bolt 8; an outer taper sleeve 9; a workpiece compression nut 10; the outer cone compresses the nut 11.
Detailed Description
The utility model provides a high accuracy machinery harmomegathus formula backing bearing inner race grinding device, includes dabber 1, connecting bolt 2, flange 3, first guide bolt 4 and the arc interior conical surface piece 5 that rises, the left end of dabber 1 is connected with flange 3 through a plurality of connecting bolt 2, is the annular on the flange 3 and is provided with four first guide bolt 4, and four first guide bolt 4 threaded connection are on flange 3, and arc interior conical surface piece 5 divide into four lamellas, and the four lamellas of arc interior conical surface piece 5 are radial sliding connection respectively on four first guide bolt 4.
The two ends of the mandrel 1 are provided with standard center holes, and when the mandrel 1 is used, the mandrel 1 is arranged on the centers of a headstock and a tailstock of a grinder workbench and rotates on the centers to drive a workpiece to rotate so as to finish grinding work;
the connecting bolts 2 are used for fastening the flange 3 to enable the mandrel 1 and the flange 3 to be integrated so as to ensure that the end face of the flange 3 is perpendicular to the axis of the mandrel 1, and the side face of the workpiece 6 is tightly attached to the end face of the mounting flange 3 when the device works.
After the workpiece 6 is sleeved on the four petals of the arc-shaped inner conical surface expansion block 5, the four petals of the arc-shaped inner conical surface expansion block 5 move and expand along the radial directions of the four first guide bolts 4 respectively, so that the workpiece 6 is supported, and the workpiece 6 is fixed on the mandrel 1 to meet the grinding requirement; center holes of centers at two ends of the mandrel 1 are operated on centers on a headstock and a tailstock of the grinding machine, so that the grinding precision of a workpiece during grinding is ensured. Each part of the outer ring grinding device can be replaced by different sizes so as to meet the cylindrical grinding requirements of hollow cylinders with different inner diameters. The outer ring grinding device can be adjusted in the axial direction of the workpiece 6 to meet the requirements of grinding workpieces with different lengths. The diameter of the working surface of the outer ring grinding device can be adjusted, so that the working surface is tightly attached to the inner surface of the workpiece 6, the gap between the inner surface of the workpiece 6 and the outer surface of the tool is eliminated, and the coaxiality of the inner circle of the workpiece 6 and the outer circle of the workpiece is ensured during grinding. The outer ring grinding device is very easy to install on the grinding machine, a complex alignment process is not needed, and the grinding precision is guaranteed by the precision of the grinding machine. The outer ring grinding device does not need to add extra power, such as hydraulic power, and does not need to change the original structure and function of the cylindrical grinding machine; the outer ring of the outer ring grinding device can be used for precision grinding of other similar hollow cylinders.
The utility model provides a high accuracy machinery harmomegathus formula backing bearing outer lane grinding device, still includes second guide bolt 8, and the arc interior conical surface piece 5 cover is on dabber 1, and the equal threaded connection of right-hand member of the four lamellas of arc interior conical surface piece 5 has a second guide bolt 8, and the equal radial sliding connection of four second guide bolts 8 is on dabber 1.
The first guide bolt 4 and the second guide bolt 8 ensure that the arc-shaped inner conical surface expansion block 5 can only do radial movement, so that the outer arc surface of the arc-shaped inner conical surface expansion block 5 is in close contact with the inner circle of the workpiece 6.
The four second guide bolts 8 are supported at the right ends of the four petals of the inner conical surface expanding block 5, so that the four petals of the inner conical surface expanding block 5 can stably slide in the radial direction.
The utility model provides a high accuracy machinery harmomegathus formula backing bearing inner race grinding device, still includes outer taper sleeve 9, and outer taper sleeve 9 cover is provided with four through-holes that correspond second guide bolt 8 on the dabber 1, and four second guide bolt 8 pass four through-holes respectively, and four through-hole diameters are greater than the diameter of second guide bolt 8 on the outer taper sleeve 9, and outer taper sleeve 9 axially sliding connects on dabber 1, and the outer conical surface of outer taper sleeve 9 cooperatees with the interior conical surface of arc inner conical surface rising piece 5.
The outer circle diameter of the arc-shaped inner conical surface expansion block 5 is the same as the inner circle diameter of the workpiece 6, and the outer arc surface of the arc-shaped inner conical surface expansion block 5 is in close contact with the inner arc surface of the workpiece 6 during working and supports the workpiece 6 when the outer circle surface of the workpiece 6 is ground. The concentricity of the inner circle and the outer circle of the workpiece 6 can be ensured when the outer circle diameter of the arc-shaped inner conical surface expanding block 5 is the same as the inner circle diameter of the workpiece 6 during grinding. The inner conical surface of the arc inner conical surface expansion block 5 is matched and processed with the inner conical surface of the outer conical sleeve 9 to ensure that the inner conical surface and the outer conical surface are completely consistent. The arc inner conical surface expansion block 5 is cut into four blocks by adopting a linear cutting mode.
When the outer taper sleeve 9 slides axially leftwards, the four petals of the inner conical surface expanding block 5 can be driven to expand outwards, and then the workpiece 6 is fixed on the outer peripheral surface of the inner conical surface expanding block 5.
A high-precision mechanical expansion type backing bearing outer ring grinding device is characterized in that a workpiece 6 is sleeved on the periphery of an arc inner conical surface expansion block 5, and the left side of the workpiece 6 is propped against a flange 3.
The high-precision mechanical expansion and contraction type backing bearing outer ring grinding device further comprises a spacer bush 7, wherein the spacer bush 7 is sleeved on the periphery of the arc-shaped inner conical surface expansion block 5, and the left side of the spacer bush 7 is propped against the right side of a workpiece 6.
The spacer 7 is used for pressing the workpiece 6.
The high-precision mechanical expansion and contraction type grinding device for the outer ring of the backing bearing further comprises a workpiece compression nut 10, the workpiece compression nut 10 is connected to the right end of the outer taper sleeve 9 through threads, and the left side of the workpiece compression nut 10 is pressed on the right side of the spacer 7.
When the workpiece pressing nut 10 works, the workpiece is pressed through the spacer bush 7, and after grinding is finished, the workpiece pressing nut 10 is rotated to enable the outer taper sleeve 9 to move rightwards to loosen the workpiece 6.
The utility model provides a high accuracy machinery harmomegathus formula backing bearing outer lane grinding device, still includes outer taper sleeve gland nut 11, and outer taper sleeve gland nut 11 passes through threaded connection at the right-hand member of dabber 1, and outer taper sleeve gland nut 11 presses on the right side of outer taper sleeve 9.
The outer taper sleeve compression nut 11 is rotated to press the right side of the outer taper sleeve 9, and then the outer taper sleeve 9 is pressed to axially slide leftwards, so that the four petals of the arc-shaped inner conical surface expansion block 5 are driven to expand outwards.
Before the device works, a part mandrel 1, a connecting bolt 2, a flange 3, a first guide bolt 4, an arc-shaped inner conical surface expanding block 5, a second guide bolt 8 and an outer conical sleeve 9 are assembled in advance to form a complete set of tool, when the device works, a workpiece 6 is installed on the device, then a spacer 7, a workpiece compression nut 10 and an outer conical sleeve compression nut 11 are installed to enable the outer conical sleeve 9 to move rightwards to expand the arc-shaped inner conical surface expanding block 5 to support the workpiece 6 to complete the assembly of the workpiece 6, and the mandrel 1 is installed on a headstock and a tailstock center of a grinding machine to grind the workpiece. When the outer ring grinding device is not needed, the outer ring grinding device can be detached from the grinding machine, and the device can be taken down by loosening the tip of the tailstock during detachment. Therefore, the installation and the removal are very convenient and fast, and the adjustment is also very easy.
Claims (7)
1. The utility model provides a high accuracy machinery harmomegathus formula backing bearing outer lane grinding device, includes dabber (1), connecting bolt (2), flange (3), first guide bolt (4) and the interior conical surface of arc piece (5) that rises, its characterized in that: the left end of dabber (1) is connected with flange (3) through a plurality of connecting bolt (2), is the annular on flange (3) and is provided with four first guide bolt (4), and four first guide bolt (4) threaded connection are on flange (3), and arc inner conical surface rises piece (5) and divide into four lamellas, and the four lamellas of arc inner conical surface rises piece (5) are radial sliding connection respectively on four first guide bolt (4).
2. A high precision grinding device for mechanical collapsible backing bearing outer ring according to claim 1, characterized in that: still include second guide bolt (8), the arc internal conical surface piece (5) that rises overlaps on dabber (1), the equal threaded connection of right-hand member of the four lamellas of arc internal conical surface piece (5) has one second guide bolt (8), and four equal radial sliding connection of second guide bolt (8) are on dabber (1).
3. A high precision grinding device for mechanical collapsible backing bearing outer ring according to claim 2, characterized in that: still include outer taper sleeve (9), outer taper sleeve (9) cover is on dabber (1), be the annular on outer taper sleeve (9) and be provided with four through-holes that correspond second guide bolt (8), four second guide bolt (8) pass four through-holes respectively, four through-hole diameters are greater than the diameter of second guide bolt (8), outer taper sleeve (9) axial sliding connects on dabber (1), the outer conical surface of outer taper sleeve (9) cooperatees with the interior conical surface of arc interior conical surface rising piece (5).
4. A high precision grinding device for mechanical collapsible backing bearing outer ring according to claim 3, characterized in that: the workpiece (6) is sleeved on the periphery of the arc-shaped inner conical surface expansion block (5), and the left side of the workpiece (6) is propped against the flange (3).
5. A high precision grinding device for mechanical collapsible backing bearing outer ring according to claim 4, characterized in that: the device is characterized by further comprising a spacer bush (7), wherein the spacer bush (7) is sleeved on the periphery of the arc-shaped inner conical surface expansion block (5), and the left side of the spacer bush (7) is propped against the right side of the workpiece (6).
6. A high precision grinding device for mechanical collapsible backing bearing outer ring according to claim 5, characterized in that: the workpiece pressing device is characterized by further comprising a workpiece pressing nut (10), the workpiece pressing nut (10) is connected to the right end of the outer taper sleeve (9) through threads, and the left side of the workpiece pressing nut (10) is pressed on the right side of the spacer sleeve (7).
7. A high precision grinding device for mechanical collapsible backing bearing outer ring according to claim 6, characterized in that: still include outer taper sleeve gland nut (11), outer taper sleeve gland nut (11) pass through threaded connection at the right-hand member of dabber (1), and outer taper sleeve gland nut (11) are pressed on the right side of outer taper sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220944380.4U CN217530235U (en) | 2022-04-22 | 2022-04-22 | High-precision mechanical expansion and contraction type backing bearing outer ring grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220944380.4U CN217530235U (en) | 2022-04-22 | 2022-04-22 | High-precision mechanical expansion and contraction type backing bearing outer ring grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217530235U true CN217530235U (en) | 2022-10-04 |
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ID=83431064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220944380.4U Active CN217530235U (en) | 2022-04-22 | 2022-04-22 | High-precision mechanical expansion and contraction type backing bearing outer ring grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217530235U (en) |
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2022
- 2022-04-22 CN CN202220944380.4U patent/CN217530235U/en active Active
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