CN215240170U - Grinding device and grinding system - Google Patents

Abstract

The utility model discloses a grinding device and system of polishing relates to parts machining technical field to solve the quality of polishing that grinding device exists among the prior art and the problem of the inefficiency of polishing. The grinding device includes: the grinding head comprises a base frame, a driving assembly, a grinding head and at least two guide shafts. In the assembly state of the polishing device, the driving assembly is tightly connected to the base frame, and the driving end of the driving assembly is in power connection with the polishing head. At least two guide shafts are arranged on the base frame, and the guide ends of the at least two guide shafts are in power connection with the polishing head. The driving assembly has a driving end moving in a direction corresponding to the direction of movement of the at least two guide shafts having guide ends. The utility model also provides a system of polishing, including above-mentioned technical scheme grinding device.

Description

Grinding device and grinding system

Technical Field

The utility model relates to a parts machining technology field especially relates to a grinding device and system of polishing.

Background

Grinding devices are commonly used for surface treatment of parts, for example, when parts rust, the grinding devices are often required to remove rust from the surface of the parts to improve the quality of the surface of the parts.

Prior art grinding devices typically include a grinding head, a pneumatic (or hydraulic) cylinder, and a guide spline assembly. When the sanding head sandes the part, the part applies a counter-acting force to the sanding head simultaneously, and in order to ensure the sanding contact of the sanding head and the part, a pneumatic cylinder (or a hydraulic cylinder) can be utilized to provide a driving force for the sanding head to overcome the counter-acting force. In addition, when the polishing head polishes the part, under the action of the reverse acting force and the driving force, the polishing head can reciprocate along the direction of the reverse acting force and the driving force, and in order to ensure the consistency of the reciprocating motion, the guide spline assembly can be used for guiding.

In practical application, the guide spline assembly is easy to block. At this time, the pneumatic cylinder (or the hydraulic cylinder) cannot continue to provide driving force for the polishing head, which will reduce the polishing quality and polishing efficiency of the part.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grinding device and system of polishing for improve the quality of polishing and the efficiency of polishing to the part.

In order to achieve the above object, the utility model provides a polishing device. This grinding device includes: the grinding head comprises a base frame, a driving assembly, a grinding head and at least two guide shafts. In the assembly state of the polishing device, the driving assembly is tightly connected to the base frame, and the driving end of the driving assembly is in power connection with the polishing head. At least two guide shafts are arranged on the base frame, and the guide ends of the at least two guide shafts are in power connection with the polishing head. The driving assembly has a driving end moving in a direction corresponding to the direction of movement of the at least two guide shafts having guide ends.

Compared with the prior art, the utility model provides an among the grinding device, the drive end power connection head that drive assembly has, drive assembly is used for providing drive power for the head of polishing. The driving force can overcome the reverse acting force applied to the polishing head by the part when the polishing head polishes the part. Based on this, can ensure that the head of polishing is under the influence of counter action force, normal grinding part to ensure the quality of polishing of part. Then, under the action of the driving assembly, the polishing head can reciprocate along the direction of the reverse acting force and the driving force so as to ensure the consistency of the reciprocating motion. When the reverse acting force and the driving force are relatively balanced, the reverse acting force and the driving force applied to the part in the grinding process are equal, and the grinding quality of the grinding head to the part can be improved. Furthermore, the guide shafts have guide ends in dynamic connection with the sanding head, and the drive assembly has a drive end moving in the same direction as the guide ends of the at least two guide shafts. That is, the guide shaft may guide the movement of the drive assembly to ensure that the direction of movement of the drive end of the drive assembly remains unchanged. For example, the direction of motion of the drive assembly may be perpendicular to the sanding surface of the part. At this moment, when drive assembly moved along the direction of motion of the direction end that the guiding axle had, drive assembly can exert on polishing completely for the drive power that the head of polishing provided to reduce the dispersion of drive power, and then can improve the quality of polishing of the head to the part of polishing, improve the efficiency of polishing. Further, because the utility model provides a grinding device adopts be the guiding axle, the guiding axle is for the guiding spline subassembly among the prior art, and the smooth guiding spline subassembly that adopts of grinding device that provides for the prior art in surface can avoid blocking the appearance of phenomenon to ensure the smooth stable motion of guiding axle in the actual work in-process, under the condition of guaranteeing to polish the head and be in dynamic balance state all the time, can be so that to polish head and part have the contact that lasts. Based on this, can improve the quality and the efficiency of polishing head to the part.

The utility model also provides a system of polishing, including above-mentioned technical scheme grinding device.

Compared with the prior art, the utility model provides a polishing system's beneficial effect and above-mentioned technical scheme grinding device's beneficial effect is the same, and the no longer repeated description is done here.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of a part of a polishing device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a left side view angle of the polishing device in the embodiment of the present invention;

fig. 3 is a schematic structural view of a protective cover in an embodiment of the present invention;

fig. 4 is a schematic structural view of a second mounting member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a floating joint according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a position sensor according to an embodiment of the present invention;

fig. 8 is a front view of fig. 2 in an embodiment of the present invention;

fig. 9 is a right side view of fig. 2 in an embodiment of the present invention;

fig. 10 is a schematic structural diagram of an electromagnetic proportional valve according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of the electromagnetic valve and the speed regulating valve in the embodiment of the present invention;

fig. 12 is a schematic structural view of a right side view of the polishing device according to the embodiment of the present invention;

fig. 13 is a top view of fig. 2 in an embodiment of the invention;

fig. 14 is a bottom view of fig. 2 in an embodiment of the present invention;

fig. 15 is a left side view of fig. 2 in an embodiment of the present invention;

fig. 16 is a rear view of fig. 2 according to an embodiment of the present invention.

Reference numerals:

1-base frame, 10-protective cover, 100-mounting hole,

11-a first mount, 12-a second mount;

2-drive assembly, 20-pneumatic cylinder, 200-speed control valve,

21-a floating joint;

3-a polishing head, 4-a guide shaft, 5-an oilless bushing,

6-moving part, 7-connecting part, 8-angle gyroscope,

9-position sensor, 13-air pipe joint, 14-electromagnetic proportional valve,

15-electromagnetic valve, 16-speed regulating valve, 17-communication joint,

18-mounting seat.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Grinding devices are commonly used for surface treatment of parts, for example, when parts rust, the grinding devices are often required to remove rust from the surface of the parts to improve the quality of the surface of the parts. Of course, it may also be used to grind down parts to bring the thickness of the part to requirements, etc. For example, the polishing device can be applied to a runner chamber of a hydroelectric generating set, and the runner chamber of the hydroelectric generating set is an operation interval of a water turbine. Parts in the runner chamber of the hydropower station unit are seriously rusted due to the influences of erosion, cavitation erosion, hydraulic vibration and the like of silt in water flow on the parts in the runner chamber of the hydropower station unit for a long time. At this moment, the grinding device or other equipment is needed to be utilized to grind the parts so as to remove rust and ensure normal use of the parts.

Prior art grinding devices typically include a grinding head, a pneumatic (or hydraulic) cylinder, and a guide spline assembly. The guiding spline assembly can guide the movement of the pneumatic cylinder (or the hydraulic cylinder) in the process of providing driving force for the polishing head by the pneumatic cylinder (or the hydraulic cylinder). The guide spline assembly generally includes a sleeve having a groove, and a spline shaft. In practical use, the grinding device generally adopts a group of guide spline assemblies, and only one spline shaft is included in the group of guide spline assemblies. When the part produces the counter action power to the head of polishing, a integral key shaft is weaker to grinding device's bearing support power, and is unbalanced, easily leads to the integral key shaft to rock about this moment. The spline shaft which shakes left and right can deviate from the sleeve, so that the spline shaft is blocked, and the spline shaft has the problems of complex structure and high cost.

When the sanding head sandes the part, the part applies a counter-acting force to the sanding head simultaneously, and in order to ensure the sanding contact of the sanding head and the part, a pneumatic cylinder (or a hydraulic cylinder) can be utilized to provide a driving force for the sanding head to overcome the counter-acting force. In addition, when the polishing head polishes the part, under the action of the reverse acting force and the driving force, the polishing head can reciprocate along the direction of the reverse acting force and the driving force, and the guide spline assembly can ensure the consistency of the reciprocating motion. In practical application, the guide spline assembly is easy to block. At this time, the pneumatic cylinder (or the hydraulic cylinder) cannot continue to provide driving force for the polishing head, which will reduce the polishing quality and polishing efficiency of the part.

In order to solve the technical problem, the embodiment of the utility model provides a grinding device. The grinding device is used for grinding parts. The part can be a part to be ground in any application scene and is not limited to the part in the runner chamber of the hydropower station unit described above.

Referring to fig. 1 and 2, the sanding device includes: a base frame 1, a driving assembly 2, a sanding head 3 and at least two guide shafts 4. In the assembled state of the polishing device, the driving component 2 is tightly connected to the base frame 1, and the driving end of the driving component 2 is in power connection with the polishing head 3. At least two guide shafts 4 are arranged on the base frame 1, and the guide ends of the at least two guide shafts 4 are in power connection with the polishing head 3. The driving assembly 2 has a driving end moving in the same direction as the at least two guiding shafts 4 have guiding ends.

Referring to fig. 2, the base frame 1 may have a shape of a rectangular parallelepiped, a square, a triangular prism, or the like. The base frame 1 may be made of a material with high rigidity, such as steel or alloy. Because the material that rigidity is high resists the strong ability of deformation, non-deformable or fracture in the in-service use process can ensure the stability and the security of bed frame 1, and then can ensure grinding device's stability and security. It should be understood that the shape, size, material, etc. of the base frame 1 can be set according to practical situations, and is not limited to the above description. The embodiment of the utility model provides an in, above-mentioned bed frame 1's shape is the triangular prism, not only can reduce the space that bed frame 1 occupied this moment, simultaneously because including triangle-shaped in the cross-section that the triangular prism has, triangle-shaped has stability, can ensure the stability and the security of bed frame 1 this moment. Above-mentioned bed frame 1 adopts the aluminum alloy to make, because the aluminum alloy has higher intensity, non-deformable, can further ensure the stability and the security of bed frame 1 this moment, and then ensure grinding device's stability and security.

Referring to fig. 1 and 2, the driving assembly 2 is fastened to the base frame 1, and it should be understood that the fastening manner is various. For example, it may be threaded, bolted, snapped, glued, etc. In the embodiment of the present invention, the driving assembly 2 is disposed on the base frame 1 by means of a bolt and a nut. The drive assembly 2 has a drive end that is in power connection with the sanding head 3, it being understood that the power connection may refer to the drive end being in fastening connection with the sanding head 3, and then the drive end providing the driving force for the sanding head 3 to enable the sanding head 3 to work normally. Or the driving end and the polishing head 3 are arranged at intervals, when the driving end moves to a position close to the polishing head 3, the driving end is in contact with the polishing head 3, and at the moment, the driving end can provide driving force for the polishing head 3 so that the polishing head 3 works normally. The polishing head 3 can be connected with a motor, and the motor is used for driving the polishing head 3 to rotate. Of course, the power source for the sanding head 3 may be other configurations. In the embodiment of the present invention, the driving end of the driving assembly 2 and the polishing head 3 are spaced from each other.

Referring to fig. 1 and 2, the at least two guide shafts 4 are provided on the base frame 1, and it should be understood that the arrangement is various. For example, it can be sleeved, clamped, movably connected, etc. In the embodiment of the present invention, the guiding shaft 4 is movably connected to the base frame 1 through a sleeve. The number of the guide shafts 4 may be set according to practical situations, and is not particularly limited. The at least two guide shafts 4 have guide ends that are in power connection with the sanding head 3, and the "power connection" here can be referred to the description of the drive assembly 2 and will not be described in detail here. In the embodiment of the present invention, the guiding end of the guiding shaft 4 is connected to the polishing head 3 by a bolt and a nut. The material, hollow, solid, etc. of the guide shaft 4 may be set according to actual conditions.

Referring to fig. 1, the drive assembly 2 has a drive end moving in a direction corresponding to the direction of movement of the pilot ends of the at least two pilot shafts 4. It will be appreciated that since the drive assembly 2 is used to provide a driving force to the sanding head 3 and the driving force is used to balance the opposing force that the part exerts on the sanding head 3, the sanding head 3 will typically sand the part vertically against the surface of the part. Thus, the at least two guide shafts 4 have guide ends that move in a direction generally perpendicular to the plane of the sanding head 3, i.e., the drive end of the drive assembly 2 has a drive end that also moves in a direction perpendicular to the plane of the sanding head 3.

Referring to fig. 1 and 2, in the polishing device provided in the embodiment of the present invention, the driving end of the driving assembly 2 is power connected to the polishing head 3, and the driving assembly 2 is used for providing driving force for the polishing head 3. The above-mentioned driving force can overcome the reverse acting force that the part applies to the polishing head 3 when the polishing head 3 polishes the part. Based on this, can ensure that the head of polishing 3 is under the influence of reverse action force, normal grinding part to ensure the quality of polishing of part. Then, the sanding head 3 can reciprocate in the direction of the opposing force and the driving force by the driving assembly 2 to ensure the consistency of the reciprocating motion. When the reverse acting force and the driving force are relatively balanced, the reverse acting force and the driving force applied to the part in the grinding process are equal, and the grinding quality of the grinding head 3 to the part can be improved. Furthermore, since the guiding shafts 4 have guiding ends in dynamic connection with the sanding head 3, and the driving assembly 2 has a driving end moving in the same direction as the guiding ends of at least two guiding shafts 4. That is, the guide shaft 4 may guide the movement of the driving unit 2 to ensure that the direction of movement of the driving end of the driving unit 2 remains unchanged. For example, the direction of motion of the drive assembly 2 may be perpendicular to the sanding surface of the part. At this moment, when the driving assembly 2 moves along the movement direction of the guide end of the guide shaft 4, the driving force provided by the driving assembly 2 for the polishing head 3 can be completely applied to the polishing head 3, so that the dispersion of the driving force is reduced, the polishing quality of the polishing head 3 to the part can be improved, and the polishing efficiency is improved. Further, because the embodiment of the utility model provides a grinding device adopts be guiding axle 4, guiding axle 4 is for the guiding spline subassembly among the prior art, and the smooth guiding spline subassembly that adopts of grinding device that provides for the prior art in surface can avoid blocking the appearance of phenomenon to ensure guiding axle 4 smooth stable motion in the actual work process, under the condition that ensures to polish head 3 and be in dynamic balance state all the time, can make to polish head 3 and part have continuous contact. Based on this, can improve the quality and the efficiency of polishing head 3 to the part. In addition, the use of the guide shaft 4 saves manufacturing costs, and the cost of grinding parts, relative to the use of a guide spline assembly. In summary, under the combined action of the base frame 1, the driving assembly 2, the polishing head 3 and the guide shaft 4, the polishing head 3 can polish parts normally and stably, so as to improve the polishing quality and polishing efficiency of the parts. Furthermore, because the embodiment of the utility model provides a grinding device only has four above-mentioned parts to constitute for grinding device simple structure easily operates, and the staff of being convenient for uses, has saved operating time.

As a possible implementation, referring to fig. 1 and 2, the driving assembly 2 is fixedly connected to the base frame 1 near the center of the base frame 1, and at least two guiding shafts 4 are disposed on the base frame 1 near the edge of the base frame 1.

For example, referring to fig. 1 and 2, the above-mentioned "fastening connection" and "setting" manners may refer to the foregoing description, and are not described herein again. The above-mentioned "position near the center of the base frame 1" may be understood as extending outward by 1cm to 10cm, for example, by 1cm, 3cm, 8cm, 10cm, etc., with the center of the base frame 1 as a center. It should be understood that the outward extending distance is set according to practical situations, and the above description is not intended to be limiting. The above-mentioned "position near the edge of the base frame 1" may be understood as a position 1cm to 5cm from the edge of the base frame 1, for example, 1cm, 2.5cm, 4.8cm or 5cm from the edge of the base frame 1. It should be understood that the above-mentioned length from the edge of the base frame 1 is set according to practical circumstances, and the above description is not intended to be limited specifically.

Referring to fig. 1 and 2, when the driving unit 2 is fastened to the base frame 1 at a position infinitely close to the center of the base frame 1 and the driving unit 2 has a driving end located right above the working end of the sanding head 3, the driving force applied by the driving end to the sanding head 3 will better act on the sanding head 3 to reduce the dispersion of the driving force.

Referring to fig. 1 and 2, when at least two guide shafts 4 are disposed on the base frame 1 near the edge of the base frame 1, the guide shafts 4 can provide better support and protection for the polishing head 3, and prevent the polishing head 3 from being damaged by the impact of the reverse force. It should be understood that the number of the guide shafts 4 is different, and the shape formed between the guide shafts 4 is also different. In one example, when two guide shafts 4 are used, the intersection points of the center axes of the guide shafts 4 on the loading surface of the base frame 1 are connected to form a line segment. When comparing in prior art and adopting a direction spline subassembly 3 atress of polishing head support for a point, the embodiment of the utility model provides an in two guiding axle 4 make 3 atress of polishing head support become a line segment. Based on this, the ability of the sanding head 3 to withstand deformation can be enhanced to ensure that the sanding head 3 works normally.

In another example, referring to fig. 1 and 2, when the at least two guide shafts 4 include three guide shafts 4, each guide shaft 4 has a central axis perpendicular to a loading surface with which the base frame 1 has, and a line connecting intersections of the three central axes and the loading surface is triangular. Because of the stability of the triangle, it is now ensured that the ability of the sanding head 3 to withstand deformation is increased when the sanding head 3 is subjected to a counter-acting force. It should be understood that the triangle may be a regular triangle, an acute triangle, an obtuse triangle, a right triangle, or the like. The driving unit 2 may vertically penetrate the center of the triangular enclosure forming region, or may be at a vertical center position.

Referring to fig. 1 and 2, in the embodiment of the present invention, the three guide shafts 4 are disposed at positions of the base frame 1 near the edge of the base frame 1, and a line connecting intersection points of three central axes of the three guide shafts 4 and the loading surface is a regular triangle. The driving component 2 vertically penetrates through the central position of the area formed by the enclosing of the regular triangle, and the driving component 2 also penetrates through the central position of the base frame 1. At this moment, the driving force applied to the polishing head 3 by the driving end of the driving assembly 2 can better act on the polishing head 3, so that the dispersion of the driving force is reduced, the driving force and the reverse acting force are mutually balanced (namely, the polishing head 3 is ensured to be always in a dynamic balance state), and further the polishing head 3 can better polish parts, and the polishing quality of the parts is improved.

As a possible implementation manner, referring to fig. 1 and fig. 2, the base frame 1 may be a closed base frame, and at this time, it is not only ensured that components disposed inside the base frame 1 are kept clean, tidy and safe, but also that the components disposed inside the base frame 1 are prevented from accumulating dust or being impacted by the outside, and that the components disposed inside the base frame 1 work normally. Meanwhile, the polishing head 3 is arranged outside the base frame 1, the driving end penetrates through the base frame 1 and then is in power connection with the polishing head 3, and the guiding end penetrates through the base frame 1 and then is in power connection with the polishing head 3. Therefore, the driving assembly 2, the guide shaft 4 and the guide sleeve are integrated on the base frame 1, and the integration level of the grinding device is improved. In addition, the closed base frame can also play a role in protecting the driving assembly 2, the guide shaft 4 and the guide sleeve.

In one example, referring to fig. 1 to 4, the base frame 1 may include a shield 10, a first mounting part 11, and a second mounting part 12. The hood 10 may be a through tubular hood, and the first mounting unit 11 may be engaged with a first end of the hood 10, and the second mounting unit 12 may be engaged with a second end of the hood 10.

Referring to fig. 1 to 4, when the base frame 1 is a closed base frame, the first mounting member 11 is completely fastened to a first end of the protective cover 10, the second mounting member 12 is completely fastened to a second end of the protective cover 10, and the first mounting member 11 and the second mounting member 12 are non-hollow structures. In the embodiment of the present invention, the base frame 1 is a closed base frame having a triangular prism shape. At this time, the mask 10 is a penetrating tubular mask having a triangular prism shape, and the first mounting piece 11 and the second mounting piece 12 are both triangular mounting plates. According to the above description, the shield 10, the first mounting part 11 and the second mounting part 12 are all made of aluminum alloy. It should be understood that the first mounting member 11 and the second mounting member 12 may be mounting plates, mounting blocks, and the like.

When the base frame is the non-closed base frame, the first installation part can be incompletely buckled at the first end of the protective cover, or the second installation part can be incompletely buckled at the second end of the protective cover, or the first installation part and the second installation part can be completely buckled on the protective cover, but the first installation part and the second installation part are hollow structures, or the combination of any two or three of the above modes. It should be understood that whatever the composition, the structure of the finally formed base frame may meet the actual working requirements. As for the material and shape of the protective cover, the first mounting member and the second mounting member, reference may be made to the description of the closed base frame, and further description is omitted here.

Referring to fig. 1 and 2, the driving assembly 2 further has a fixed end disposed opposite to the driving end. The fixed end is fixedly connected with the first mounting piece 11, and the driving end penetrates through the second mounting piece 12 and then is in power connection with the sanding head 3. Reference may be made to the foregoing as to the manner of "fastening" and "power" connections, which are not described in detail herein.

Referring to fig. 1 to 4, the protective cover 10 has a wall with a mounting hole 100, and the guide shaft 4 further has a connecting end opposite to the guiding end. The connecting end is inserted in the mounting hole 100, and the guide end penetrates through the second mounting piece 12 and then is in power connection with the sanding head 3. It should be understood that the above-described mounting hole 100 is opened in the height direction of the hood 10, and the height direction of the hood 10 is perpendicular to the working surface of the sanding head 3. At this time, the guide shaft 4 is provided on the hood 10 in the height direction of the hood 10, and the length direction of the guide shaft 4 is also perpendicular to the working surface of the sanding head 3. On this basis, it is advantageous to provide a supporting force for the sanding head 3 and also to facilitate the movement of the drive assembly 2 along the length of the guide shaft 4.

In one example, referring to fig. 1-6, the drive assembly 2 may include a driver and a damper coupled to a piston rod carried by the driver. Specifically, the driving member is used to provide a driving force for the sanding head 3, and for example, the driving member may be a pneumatic cylinder 20, a hydraulic cylinder, or the like. The buffer piece is used for buffering the driving piece so as to protect the driving piece from being damaged by overlarge reverse acting force or overlarge driving force in the actual application process. For example, the buffer member may be a floating joint 21, a rubber block, a sponge block, or the like. In the embodiment of the present invention, the driving member is a pneumatic cylinder 20, and the buffer member is a floating joint 21. The floating joint 21 is used for preventing the direction and the stress point of the piston rod of the pneumatic cylinder 20 from being out of alignment when the piston rod extends out, so as to avoid the deformation or the fracture of the shaft rod of the pneumatic cylinder 20, and simultaneously prevent the sealing ring of the pneumatic cylinder 20 from being damaged, thereby prolonging the service life of the pneumatic cylinder 20.

Referring to fig. 1, in the actual use process, one end of the driving element away from the buffer element is a fixed end, and the fixed end is fastened and connected with the first mounting element 11. The end of the buffer piece far away from the piston rod is a driving end, and after the buffer piece penetrates through the second mounting piece 12, the driving end is in power connection with the polishing head 3.

In one example, referring to fig. 1-4, the grinding device may further include a guide sleeve. The guide sleeve is inserted into the mounting hole 100, and the connecting end of the guide shaft 4 is inserted into the guide sleeve. Specifically, the guide shaft 4 may be disposed in a guide sleeve, and move up and down along the axial direction of the guide sleeve under the action of the pneumatic cylinder 20 to provide a supporting force for the polishing apparatus. Further, friction between the guide shaft 4 and the guard 10, the guide shaft 4 and the second mounting member 12 can be prevented by providing the guide sleeve. At this time, not only can the friction of the guide shaft 4 at the position where the mounting hole 100 of the shield 10 or the guide shaft 4 penetrates the second mounting part 12 be prevented from increasing, and the guide shaft 4 is prevented from shaking left and right relative to the shield 10 or the second mounting part 12, so that the driving assembly 2 can move along the movement direction of the guide shaft 4 without obstacles, but also the service life of the guide shaft 4 can be prolonged. The guide sleeve may be an oilless bushing 5, a hollow screw having a lubricating function, or the like. In the embodiment of the utility model provides an, oil-free bush 5 is adopted to the uide bushing.

As a possible realization, with reference to fig. 1 and 2, the above-described sanding device may further comprise a movable member 6, the movable member 6 being arranged between the sanding head 3 and the base frame 1. The movable piece 6 is provided with a first surface and a second surface which are opposite, the driving end and the guiding end are both connected with the first surface, and the polishing head 3 is fixed on the second surface. At the moment, the guide shaft 4 and the driving assembly 2 can be better in power connection with the polishing head 3, and meanwhile, the driving force applied by the driving assembly 2 to the polishing head 3 can be better applied to the polishing head 3 through the amplification transmission of the movable piece 6. In the embodiment of the present invention, the movable member 6 is a movable plate. Further, the movable plate may be connected to the sanding head 3 through a connection 7. At this time, the movable plate is more firmly connected with the polishing head 3, so that the safety of the guide shaft 4, the driving assembly 2 and the base frame 1 is ensured, and the overall safety of the polishing device can be ensured. The specifications of the movable plate are consistent with those of the first mounting plate and the second mounting plate. As for the specification of the connecting member 7, it may be set according to actual conditions as long as the movable plate and the polishing head 3 can be safely and firmly mounted together.

In one example, referring to fig. 1 and 2, the sharpening device may also include an angle gyroscope 8. The angle gyroscope 8 is arranged on the base frame 1 and used for detecting the angle between the polishing head 3 and the polishing surface of the part.

Referring to fig. 1 and 2, in general, the angle between the inner wall surface of the base frame 1 and the grinding wheel plate in the sanding head 3 is 90 degrees. At this time, the angle of transmission of the angle gyroscope 8 arranged on the inner wall of the base frame 1 to the external controller is set to be 0 degree, so that a detection reference can be provided for the later-stage detection of the deflection angle of the polishing head 3. Specifically, when the polishing head 3 polishes a part, the angle between the polishing head 3 and the polishing surface of the part may be constantly changed due to various factors. At this time, not only the depth of the polished surface of the part is different, but also the thickness of the polished part is different, which affects the quality of the finally formed part. Meanwhile, if the deflection angle of the polishing head 3 relative to the polishing surface of the part is too large, the tail end of the polishing device can rub against the part, so that accidents are caused, and dangers are generated. On this basis, an angle gyroscope 8 is provided in the base frame 1 for detecting the angle between the sanding head 3 and the component sanding surface. In the actual use process, when the angle between the polishing head 3 and the part polishing surface needs to be adjusted, the angle detected by the angle gyroscope 8 can be analyzed by using a controller or other components, so that the deflection angle of the polishing head 3 relative to the part polishing surface is controlled within a preset safe angle range. At this moment, not only can improve the quality of the part of final molding, can also avoid simultaneously producing danger in the in-process of the part of polishing.

Referring to fig. 1, 5 and 7, the grinding device may further comprise a position sensor 9, and the position sensor 9 is connected to the driving member for determining a movement distance of a piston rod provided in the driving member. During the actual sanding process, the part will exert a counter force on the sanding head 3, and the drive assembly 2 (pneumatic cylinder 20 and floating joint 21) and the guide shaft 4, which are in power connection with the sanding head 3, will move away from the sanding head 3. Based on this, the polishing force applied to the part by the polishing head 3 cannot completely act on the part, and the polishing quality of the surface to be polished of the part is unqualified. Therefore, according to the different parts to be polished, the driving force with different values can be set for the driving assembly 2, so that the driving force and the reverse acting force are balanced, and the polishing head 3 can effectively polish the parts.

Referring to fig. 1, 5, and 7 to 10, at least one air pipe joint 13 is further provided on the base frame 1, one end of the air pipe joint 13 is connected to a speed control valve 200 of the pneumatic cylinder 20, the other end of the air pipe joint 13 is connected to an electromagnetic proportional valve 14, and the electromagnetic proportional valve 14 is connected to an air compressor (i.e., an air compressor) and a Controller (e.g., a Programmable Logic Controller (PLC)). When the programmable logic controller and air compressor are activated, the air compressor will pump air into the pneumatic cylinder 20. At this time, the piston rod of the pneumatic cylinder 20 moves in a direction to approach the sanding head 3 (i.e., downward movement), and the position sensor 9 connected to the pneumatic cylinder 20 can detect the downward movement distance of the piston rod. For example, a plurality of axes are provided, and the direction of the downward movement of the piston rod is defined as a negative direction, and the direction of the upward movement of the piston rod is defined as a positive direction. When the air compressor applies 5 kg of pressure (i.e. 0.5MPa) to the cylinder 20, the position sensor 9 detects that the piston rod moves 5mm in the direction close to the sanding head 3 (at this time, the number axis shows-5 mm). When the sanding head 3 sands a part, the part will give the sanding head 3 an upward force (i.e., a counter force), and the piston rod of the pneumatic cylinder 20 will move upward. For example, when the position sensor 9 detects 5mm of upward movement of the piston rod, 0mm is displayed on the number axis (or 0.2mm floating up and down 0mm, i.e., floating within a variable range). Based on this, the driving force applied by the piston rod of the pneumatic cylinder 20 to the sanding head 3 downwards is balanced with the reverse acting force applied by the part to the sanding head 3, namely 5 kilograms of pressure is applied upwards and downwards. If the position sensor 9 detects that the driving force and the reverse acting force are not balanced, the electromagnetic proportional valve 14 can be controlled by an electric program signal, so that the pressure applied to the pneumatic cylinder 20 is changed, and the driving force and the reverse acting force are balanced.

Referring to fig. 11 and 12, the grinding device may further include a solenoid valve 15 and a speed control valve 16, and both the solenoid valve 15 and the speed control valve 16 are disposed on the base frame 1. The electromagnetic valve 15 and the speed regulating valve 16 are in communication connection or electric connection with the controller, and the electromagnetic valve 15 and the speed regulating valve 16 are connected in series. The speed of the grinding head 3 for grinding parts can be controlled and adjusted by arranging the electromagnetic valve 15 and the speed regulating valve 16. In particular, when the drive assembly comprises a pneumatic cylinder, the solenoid valve 15 can control the ventilation and deflation of the pneumatic cylinder. The speed regulating valve 16 can regulate the size of the channel when the pneumatic cylinder is ventilated or deflated, and the telescopic sensitivity of the pneumatic cylinder under the conditions of different materials is realized.

Referring to fig. 11 and 12, the polishing apparatus may further include a communication connector 17. In the embodiment of the present invention, the communication connector 17 is located on one side of the air pipe connector 13. The communication connector 17 may be connected to a solenoid valve or a position sensor, etc. as described above, so as to transmit the information sensed by the above devices to an external controller or PLC, etc. I.e. the communication connection 17 may be an integrated connection of a solenoid valve or other device. Because communication joint 17 can be connected with controller, weak power or PLC to communication joint 17 can transmit current signal or voltage signal, can carry out the conversion of analog quantity to the signal of transmission through the controller, in order to realize follow-up procedure editing, so that the better part of polishing, and then improve the quality of polishing of part.

The embodiment of the utility model provides a system of polishing is still provided, including above-mentioned technical scheme grinding device. The embodiment of the utility model provides a system of polishing's beneficial effect and above-mentioned technical scheme grinding device's beneficial effect is the same, and the here is not done repeatedly.

Specifically, referring to fig. 1 to 16, a mounting seat 18 may be provided at one side or end of the base frame for connecting with an external device. For example, the mounting block 18 may be used to connect a robot to a base frame and, in turn, a grinding device to the robot to form a grinding system. The robot can be controlled to control the grinding device to work. Based on this, not only can reduce artificial participation, improve degree of automation, can also improve the efficiency of polishing of part simultaneously. It should be understood that the above-described connection with the base frame is not limited to a robot, but may be a robot arm, and the like. The mounting block 18 may be a mounting plate, but may be of other configurations suitable for practical use.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An abrading device, comprising: the grinding head comprises a base frame, a driving assembly, a grinding head and at least two guide shafts;

when the grinding device is in an assembled state, the driving assembly is tightly connected to the base frame, and a driving end of the driving assembly is in power connection with the grinding head; at least two guide shafts are arranged on the base frame; the at least two guide shafts are provided with guide ends which are in power connection with the polishing head; the driving assembly is provided with a driving end, the moving direction of the driving end is consistent with the moving direction of the guide ends of the at least two guide shafts.

2. The sharpening device of claim 1 wherein said drive assembly is fixedly attached to said base frame proximate a center of said base frame; at least two guide shafts are arranged on the base frame at positions close to the edge of the base frame.

3. The sharpening device of claim 1 or 2 wherein said at least two guide shafts comprises three said guide shafts; each guide shaft is provided with a central axis which is vertical to a loading surface of the base frame; the connecting lines of the intersection points of the three central axes and the loading surface are triangular; the driving assembly vertically penetrates through an area formed by enclosing the triangle.

4. The polishing device as claimed in claim 1, wherein the base frame is a closed base frame, the polishing head is disposed outside the base frame, and the driving end penetrates through the base frame and is in power connection with the polishing head; the guide end penetrates through the base frame and then is in power connection with the polishing head.

5. The sharpening device of claim 1 or 4 wherein the base frame comprises a shield, a first mount and a second mount; the protective cover is a through tubular protective cover, the first mounting piece is buckled at a first end of the protective cover, and the second mounting piece is buckled at a second end of the protective cover;

the driving component is also provided with a fixed end which is arranged opposite to the driving end; the fixed end is fixedly connected with the first mounting piece, and the driving end penetrates through the second mounting piece and then is in power connection with the polishing head;

the wall of the protective cover is provided with a mounting hole, the guide shaft is also provided with a connecting end, and the connecting end is opposite to the guide end; the connecting end is inserted in the mounting hole, and the guide end penetrates through the second mounting piece and then is in power connection with the polishing head.

6. The abrading device of claim 5, wherein the drive assembly includes a drive member and a buffer member coupled to a piston rod carried by the drive member;

one end of the driving piece, which is far away from the buffer piece, is the fixed end, and the fixed end is fixedly connected with the first mounting piece; the end, far away from the piston rod, of the buffer piece is the driving end, and after the buffer piece penetrates through the second mounting piece, the driving end is in power connection with the grinding head.

7. The polishing apparatus as set forth in claim 5, further comprising a guide sleeve inserted in the mounting hole; the connecting end of the guide shaft is inserted in the guide sleeve.

8. The abrading apparatus of claim 1, further comprising a movable member disposed between the abrading head and the base frame; the movable piece is provided with a first surface and a second surface which are opposite; the driving end and the guiding end are both connected with the first surface, and the polishing head is fixed on the second surface.

9. The sanding device of claim 6, further comprising an angle gyroscope disposed on the base frame for detecting an angle between the sanding head and a sanding surface of a part; and/or the presence of a gas in the gas,

the grinding device further comprises a position sensor, the position sensor is connected with the driving piece and used for determining the movement distance of a piston rod of the driving piece; and/or the presence of a gas in the gas,

the grinding device further comprises an electromagnetic valve and a speed regulating valve, the electromagnetic valve is connected with the speed regulating valve, and the electromagnetic valve and the speed regulating valve are arranged on the base frame and used for regulating the grinding speed of the grinding head for grinding the part.

10. A sanding system comprising a sanding device as defined in any one of claims 1-9.

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