Grinding wheel dressing device for common cylindrical grinding machine

Abstract

The invention provides a grinding wheel dressing device for a common cylindrical grinding machine. The grinding wheel dressing device comprises a connecting base, a bearing assembly and a cutter mounting shaft. The bearing assembly comprises a base, a bearing seat and a guide seat, the base is arranged on the connecting seat in a liftable mode, and a containing groove is formed in the top face of the base. The bearing seat is arranged in the containing groove in a sliding mode, and the sliding direction of the bearing seat is parallel to the axis direction of the grinding wheel. The guide seat is arranged on the top face of the bearing seat, a containing hole is formed in the guide seat, and the axis direction of the containing hole is perpendicular to the sliding direction of the bearing seat. One end of the cutter mounting shaft is slidably arranged in the containing hole, a cutter mounting seat is arranged at the other end of the cutter mounting shaft, and a trimming cutter is arranged on the cutter mounting seat. According to the grinding wheel dressing device for the common cylindrical grinding machine, the position of a dressing cutter can be flexibly adjusted, so that the adjusting speed and the adjusting precision of the cutter are improved, and an arc at the edge of a grinding wheel is conveniently dressed.

Description

Technical Field

[0001] The invention belongs to the field of machining equipment, and in particular relates to a grinding wheel dressing device for a common cylindrical grinder. Background Art

[0002] A cylindrical grinder is a machining equipment used to process the outer surface of a workpiece with cylindrical, conical or other shapes and the shoulder end face. It can usually be divided into many types, such as ordinary cylindrical grinders, universal cylindrical grinders and wide grinding wheel cylindrical grinders.

[0003] In the prior art, most common cylindrical grinders use corundum grinding wheels to process workpieces. Since the corundum grinding wheel will wear out during use, in order to ensure that the workpiece obtains a good grinding effect, the staff needs to regularly dress the grinding wheel of the common cylindrical grinder.

[0004] However, the existing grinding wheel dressing device has poor operating convenience. When the staff needs to adjust the relative position of the tool and the grinding wheel, the tool adjustment speed is slow and the tool position adjustment accuracy is low, which will affect the working efficiency and dressing effect of the grinding wheel dressing. Especially when dressing the arc of the grinding wheel edge, it is difficult for the traditional dressing device to finely dress the arc of the grinding wheel edge, resulting in the inability of the dressed grinding wheel to grind workpieces with arc angles, thereby affecting the processing capacity of ordinary cylindrical grinders. Summary of the invention

[0005] In view of this, the present invention aims to provide a grinding wheel dressing device for a common cylindrical grinder to solve the above technical problems.

[0006] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0007] A common external cylindrical grinder grinding wheel dressing device comprises: a connecting seat, a bearing assembly and a tool mounting shaft; the bearing assembly comprises: a base, a bearing seat and a guide seat, the base is movably arranged on the connecting seat, and a receiving groove is provided on the top surface of the base; the bearing seat is slidably arranged inside the receiving groove, and the sliding direction of the bearing seat is parallel to the axial direction of the grinding wheel; the guide seat is arranged on the top surface of the bearing seat, and a receiving hole is provided on the guide seat, and the axial direction of the receiving hole is perpendicular to the sliding direction of the bearing seat; one end of the tool mounting shaft is slidably arranged inside the receiving hole, and the other end is provided with a tool mounting seat, and a dressing tool is provided on the tool mounting seat.

[0008] Furthermore, the guide seat is provided with a liquid inlet pipe connected to the accommodating hole, a liquid conducting cavity is provided inside the tool mounting shaft, and a liquid inlet hole connected to the liquid conducting cavity is provided on the side wall of the tool mounting shaft; the tool mounting shaft is provided with a liquid conducting nozzle at one end of the tool mounting seat, and the liquid conducting nozzle is connected to the liquid conducting cavity.

[0009] Furthermore, a liquid collecting groove is provided on the side wall of the tool mounting shaft, the length direction of the liquid collecting groove is parallel to the axial direction of the accommodating hole, and the liquid inlet hole is arranged inside the liquid collecting groove.

[0010] Furthermore, two sealing rings are provided inside the accommodating hole, a liquid inlet area is formed between the two sealing rings, and the liquid inlet pipe is connected to the liquid inlet area.

[0011] Furthermore, a sealing protrusion is provided on the inner side wall of the sealing ring, and the sealing protrusion is inserted into the liquid collecting tank.

[0012] Furthermore, a first driving electric cylinder is provided on the connecting seat, and a telescopic rod of the first driving electric cylinder is connected to the bottom surface of the base.

[0013] Furthermore, a sealing flange and a support sleeve are respectively provided at both ends of the accommodating hole, a second driving electric cylinder is provided at one end of the support sleeve away from the guide seat, and a telescopic rod of the second driving electric cylinder is connected to one end of the tool mounting shaft away from the tool mounting seat.

[0014] Furthermore, a lead screw is provided inside the accommodating groove, a ball nut is provided on the lead screw, and a mounting hole for accommodating the ball nut is provided on the bearing seat.

[0015] Furthermore, a guide strip is provided inside the accommodating groove, and a first V-shaped groove is provided on the side wall of the guide strip close to the bearing seat; a second V-shaped groove is also provided on the side wall of the bearing seat, and the second V-shaped groove is arranged opposite to the opening of the first V-shaped groove, a guide slider is provided between the second V-shaped groove and the first V-shaped groove, and a plurality of rollers are provided on the guide slider.

[0016] Compared with the prior art, the common cylindrical grinding wheel dressing device created by the present invention has the following advantages:

[0017] (1) The present invention creates a common external cylindrical grinder grinding wheel dressing device, wherein the bearing seat and the tool mounting shaft can both slide, and the sliding directions of the bearing seat and the tool mounting shaft are perpendicular to each other. During the grinding wheel dressing process, the staff can flexibly adjust the position of the dressing tool by sliding the bearing seat and the tool mounting shaft, thereby improving the adjustment speed and adjustment accuracy of the tool, and facilitating the dressing of the circular arc of the grinding wheel edge, so as to facilitate the grinding wheel to process workpieces with circular arc angles.

[0018] (2) The present invention creates a common external cylindrical grinder grinding wheel dressing device, which is provided with a liquid guide cavity inside the tool mounting shaft, and can transport liquid medium into the liquid guide cavity through a liquid inlet pipe. When working, the liquid medium in the liquid guide cavity can be ejected toward the dressing tool and the grinding wheel along the liquid guide nozzle, thereby removing stains on the dressing tool and the grinding wheel and improving the dressing accuracy of the grinding wheel. In addition, the device is provided with a liquid collecting groove on the side wall of the tool mounting shaft, and a sealing ring is provided inside the receiving hole, and a sealing protrusion is provided on the inner side wall of the sealing ring. When the tool mounting shaft slides inside the receiving hole, the presence of the liquid collecting groove can ensure that the liquid medium introduced by the liquid inlet pipe flows smoothly into the liquid guiding cavity, and the sealing protrusion on the sealing ring can block the liquid collecting grooves on both sides of the liquid inlet hole to prevent the liquid medium from flowing outward along the gap between the guide seat and the tool mounting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a common cylindrical grinding wheel dressing device according to an embodiment of the present invention;

[0021] Figure 2 An exploded view of a common cylindrical grinding wheel dressing device according to an embodiment of the present invention;

[0022] Figure 3 A cross-sectional view of the guide seat, the bearing seat and the tool mounting shaft according to the embodiment of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the guide seat, the bearing seat and the tool installation shaft according to the embodiment of the present invention when the guide seat is in a cutaway state;

[0024] Figure 5 This is a schematic structural diagram of the tool mounting shaft and the sealing ring described in the embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1-connecting seat; 11-first driving electric cylinder; 2-base; 21-accommodating groove; 3-bearing seat; 31-mounting hole; 32-second V-shaped groove; 4-guide seat; 41-accommodating hole; 42-liquid inlet pipe; 43-sealing flange; 44-support sleeve; 45-second driving electric cylinder; 5-tool mounting shaft; 51-tool mounting seat; 511-dressing tool; 52-liquid guide cavity; 53-liquid inlet hole; 54-liquid guide nozzle; 55-liquid collecting tank; 6-sealing ring; 61-sealing protrusion; 7-screw; 8-guide strip; 81-first V-shaped groove; 9-guide slider; 10-grinding wheel. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] A common external cylindrical grinding machine grinding wheel dressing device, the structure of which can be Figure 1-Figure 5For illustration. In this embodiment, the grinding wheel dressing device of a common cylindrical grinder includes: a connecting seat 1, a bearing assembly and a tool mounting shaft 5, wherein the bearing assembly includes: a base 2, a bearing seat 3 and a guide seat 4. During assembly, the base 2 is arranged on the connecting seat 1 in a liftable manner, and a receiving groove 21 is provided on the top surface of the base 2. The bearing seat 3 is slidably arranged inside the receiving groove 21, and the sliding direction of the bearing seat 3 is parallel to the axial direction of the grinding wheel 10. The guide seat 4 is arranged on the top surface of the bearing seat 3, and a receiving hole 41 whose axial direction is perpendicular to the sliding direction of the bearing seat 3 is provided on the guide seat 4. One end of the tool mounting shaft 5 is slidably arranged inside the receiving hole 41, and the other end is provided with a tool mounting seat 51, and a dressing tool 511 is provided on the tool mounting seat 51.

[0032] Since one end of the tool mounting shaft 5 is slidably disposed inside the accommodating hole 41, and the axial direction of the accommodating hole 41 is perpendicular to the sliding direction of the supporting seat 3, when the device is working, the staff can flexibly adjust the relative position of the dressing tool 511 and the grinding wheel 10 by sliding the tool mounting shaft 5 and the supporting seat 3, so as to quickly and conveniently perform the dressing work on the grinding wheel 10, and can finely dress the arc at the edge of the grinding wheel 10, so that the grinding wheel 10 can process the workpiece with an arc angle after dressing.

[0033] In order to realize the lifting and lowering movement of the carrying assembly, a first driving electric cylinder 11 may be provided on the connecting seat 1 in this embodiment, and the telescopic rod of the first driving electric cylinder 11 should be connected to the bottom surface of the base 2, so that the carrying assembly can be driven to lift and lower through the telescopic movement of the telescopic rod of the first driving electric cylinder 11, thereby adjusting the height of the dressing tool 511 relative to the axis of the grinding wheel 10.

[0034] In order to realize the sliding action of the bearing seat 3, in this embodiment, a lead screw 7 is provided inside the receiving groove 21, a ball nut is provided on the lead screw 7, and a mounting hole 31 for accommodating the ball nut is provided on the bearing seat 3. When it is necessary to drive the bearing seat 3 to slide, the staff can drive the lead screw 7 to rotate, so as to convert the rotational torque into a linear torque by means of the cooperation of the ball nut and the lead screw 7, thereby realizing the sliding of the bearing seat 3 inside the receiving groove 21, so as to drive the tool installation shaft 5 to adjust its position along the axial direction of the grinding wheel 10.

[0035] Optionally, in order to improve the movement accuracy of the bearing seat 3, a guide bar 8 may be provided inside the receiving groove 21, and a first V-shaped groove 81 may be provided on the side wall of the guide bar 8 close to the bearing seat 3. Correspondingly, a second V-shaped groove 32 may be provided on the side wall of the bearing seat 3, and the second V-shaped groove 32 is arranged opposite to the opening of the first V-shaped groove 81, and a guide slider 9 is provided between the second V-shaped groove 32 and the first V-shaped groove 81, and a plurality of rollers are provided on the guide slider 9. When the bearing seat 3 slides, the cooperation of the first V-shaped groove 81, the second V-shaped groove 32 and the guide slider 9 can guide and constrain the bearing seat 3 to ensure that the bearing seat 3 slides smoothly.

[0036] In order to realize the sliding action of the tool installation shaft 5, in this embodiment, a blocking flange 43 and a support sleeve 44 may be respectively provided at both ends of the receiving hole 41, wherein a second driving electric cylinder 45 is provided at one end of the support sleeve 4 away from the guide seat 4, and a telescopic rod of the second driving electric cylinder 45 is connected to one end of the tool installation shaft 5 away from the tool installation seat 51. Since the axial direction of the receiving hole 41 is perpendicular to the sliding direction of the bearing seat 3 (i.e., the axial direction of the grinding wheel 10), when the telescopic rod of the second driving electric cylinder 45 performs a telescopic action, the tool installation shaft 5 will drive the dressing tool 511 to adjust its position along the direction perpendicular to the axis of the grinding wheel 10.

[0037] It should be noted that the above-mentioned driving structure for realizing the movement of the base 2, the bearing seat 3 and the tool mounting shaft 5 is only an example, and those skilled in the art may also select other driving structures in the prior art to drive the above-mentioned components to perform corresponding actions.

[0038] As an optional implementation of this embodiment, in order to improve the position adjustment accuracy of the dressing tool 511, the staff can also use the common numerical control system in the prior art to control the movement process of the base 2, the bearing seat 3 and the tool installation shaft 5. When it is necessary to dress the arc of the edge of the grinding wheel 10, the movement process of the bearing seat 3 and the tool installation shaft 5 can also be interpolated by the numerical control system to improve the dressing effect of the grinding wheel 10.

[0039] In actual working process, the dressing tool 511 will produce a lot of stains when dressing the grinding wheel 10, and these stains will affect the dressing effect of the grinding wheel 10 no matter they are attached to the dressing tool 51 or the grinding wheel 10. To solve this problem, in this embodiment, a liquid medium (such as clean water or other cleaning medium) is sprayed to the location of the dressing tool 51 to avoid the attachment of stains.

[0040] Specifically, in order to facilitate the introduction of the liquid medium into the device, a liquid inlet pipe 42 connected to the receiving hole 41 may be provided on the guide seat 4, a liquid guiding cavity 52 should be provided inside the tool mounting shaft 5, and a liquid inlet hole 53 connected to the liquid guiding cavity 52 is provided on the side wall of the tool mounting shaft 5. Correspondingly, in order to facilitate the introduction of the liquid medium inside the device to the dressing tool 511, a liquid guiding nozzle 54 may be provided at one end of the tool mounting shaft 5 where the tool mounting seat 51 is provided, and the liquid guiding nozzle 54 is connected to the liquid guiding cavity 52. ​​Before use, the staff can connect the liquid inlet pipe 42 with a liquid medium conveying device (such as a high-pressure water pump) so that the liquid medium flows in the device along the direction of the liquid inlet pipe 42, the liquid inlet hole 53, the liquid guiding cavity 52, and the liquid guiding nozzle 54, and finally ejects toward the dressing tool 511 and the grinding wheel 10 along the liquid guiding nozzle 54.

[0041] Optionally, in this embodiment, a liquid collecting groove 55 may be provided on the side wall of the tool mounting shaft 5, the length direction of the liquid collecting groove 55 should be parallel to the axial direction of the receiving hole 41, and the liquid inlet hole 53 is provided inside the liquid collecting groove 55. By providing the liquid collecting groove 55, the liquid medium entering the receiving hole 41 can be guided so that the liquid medium gathers at the position of the liquid inlet hole 53, ensuring that the liquid medium entering the receiving hole 41 flows smoothly into the liquid inlet hole 53.

[0042] In addition, since the tool installation shaft 5 can slide inside the receiving hole 41, in order to prevent the liquid medium from flowing outward along the gap between the tool installation shaft 5 and the receiving hole 41, two sealing rings 6 can be provided inside the receiving hole 41, and a liquid inlet area is formed between the two sealing rings 6, and the liquid inlet pipe 42 is connected to the liquid inlet area. Correspondingly, a sealing protrusion 61 can be provided on the inner side wall of each sealing ring 6. When the tool installation shaft 5 is installed in the receiving hole 41, the sealing protrusion 61 will be inserted into the liquid collecting groove 55, so that the liquid collecting grooves 55 on both sides of the liquid inlet hole 53 are blocked by the sealing protrusion 61 to prevent the liquid medium from flowing outward along the liquid collecting groove 55.

[0043] The effects of the above scheme are described below:

[0044] This embodiment provides a common external cylindrical grinder grinding wheel dressing device, which can flexibly adjust the position of the dressing tool through the sliding of the bearing seat and the tool mounting shaft, thereby improving the adjustment speed and adjustment accuracy of the tool, and facilitating the dressing of the arc of the edge of the grinding wheel, so as to facilitate the grinding wheel to process workpieces with arc angles. In addition, this device can also guide the liquid medium so that the liquid guide nozzle sprays the liquid medium toward the dressing tool and the grinding wheel, thereby removing stains on the surface of the dressing tool and the grinding wheel, and improving the dressing effect of the grinding wheel.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A common cylindrical grinding wheel dressing device, characterized in that: include: A connecting seat (1), a bearing assembly and a tool installation shaft (5); the bearing assembly comprises: a base (2), a bearing seat (3) and a guide seat (4); the base (2) is movably arranged on the connecting seat (1), and a receiving groove (21) is provided on the top surface of the base (2); the bearing seat (3) is slidably arranged inside the receiving groove (21), and the sliding direction of the bearing seat (3) is parallel to the axial direction of the grinding wheel (10); the guide seat (4) is arranged on the top surface of the bearing seat (3), and a receiving hole (41) is provided on the guide seat (4), and the axial direction of the receiving hole (41) is perpendicular to the sliding direction of the bearing seat (3); one end of the tool installation shaft (5) is slidably arranged inside the receiving hole (41), and the other end is provided with a tool installation seat (51), and a dressing tool (511) is provided on the tool installation seat (51).

2. A common cylindrical grinding wheel dressing device according to claim 1, characterized in that: The guide seat (4) is provided with a liquid inlet pipe (42) connected to the accommodating hole (41); a liquid guide cavity (52) is provided inside the tool mounting shaft (5); and a liquid inlet hole (53) connected to the liquid guide cavity (52) is provided on the side wall of the tool mounting shaft (5); and a liquid guide nozzle (54) is also provided at one end of the tool mounting shaft (5) provided with the tool mounting seat (51), and the liquid guide nozzle (54) is connected to the liquid guide cavity (52).

3. A common external cylindrical grinding wheel dressing device according to claim 2, characterized in that: A liquid collecting groove (55) is provided on the side wall of the tool installation shaft (5), the length direction of the liquid collecting groove (55) is parallel to the axial direction of the accommodating hole (41), and the liquid inlet hole (53) is arranged inside the liquid collecting groove (55).

4. A common external cylindrical grinding wheel dressing device according to claim 3, characterized in that: Two sealing rings (6) are arranged inside the receiving hole (41), a liquid inlet area is formed between the two sealing rings (6), and the liquid inlet pipe (42) is connected to the liquid inlet area.

5. A common cylindrical grinding wheel dressing device according to claim 4, characterized in that: A sealing protrusion (61) is provided on the inner side wall of the sealing ring (6), and the sealing protrusion (61) is inserted into the interior of the liquid collecting tank (55).

6. A common cylindrical grinding wheel dressing device according to claim 1, characterized in that: A first driving electric cylinder (11) is provided on the connecting seat (1), and a telescopic rod of the first driving electric cylinder (11) is connected to the bottom surface of the base (2).

7. A common cylindrical grinding wheel dressing device according to claim 1, characterized in that: The two ends of the accommodating hole (41) are respectively provided with a blocking flange (43) and a supporting sleeve (44); the end of the supporting sleeve (44) away from the guide seat (4) is provided with a second driving electric cylinder (45); and the telescopic rod of the second driving electric cylinder (45) is connected to the end of the tool mounting shaft (5) away from the tool mounting seat (51).

8. A common cylindrical grinding wheel dressing device according to claim 1, characterized in that: A lead screw (7) is provided inside the receiving groove (21), a ball nut is provided on the lead screw (7), and a mounting hole (31) for accommodating the ball nut is provided on the bearing seat (3).

9. A common external cylindrical grinding machine grinding wheel dressing device according to claim 1, characterized in that: A guide bar (8) is provided inside the accommodating groove (21), and a first V-shaped groove (81) is provided on the side wall of the guide bar (8) close to the bearing seat (3); a second V-shaped groove (32) is also provided on the side wall of the bearing seat (3), the second V-shaped groove (32) and the opening of the first V-shaped groove (81) are arranged opposite to each other, a guide slider (9) is provided between the second V-shaped groove (32) and the first V-shaped groove (81), and a plurality of rollers are provided on the guide slider (9).

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