CN217914589U

CN217914589U - High-precision blade profile abrasive belt grinding mechanism

Info

Publication number: CN217914589U
Application number: CN202123419921.6U
Authority: CN
Inventors: 陶梓宸; 徐化文; 袁彦欣; 张煜奇
Original assignee: Sichuan Engineering Technical College
Current assignee: Sichuan Engineering Technical College
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-11-29
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a grinding equipment technical field, the utility model provides a high accuracy blade profile abrasive band grinding mechanism, including normal direction detection device, abrasive wheel grinding device, abrasive band grinding device, Y axle slide connecting plate, cylinder, frame and movable assembly, normal direction detection device, abrasive wheel grinding device and abrasive band grinding device connect gradually on Y axle slide connecting plate from high to low, respectively be provided with a cylinder on normal direction detection device, abrasive wheel grinding device and the abrasive band grinding device, Y axle slide connecting plate sets up in the frame, and movable assembly sets up in the frame bottom, and movable assembly is used for driving the frame and removes along the direction of perpendicular to cylinder piston rod, the utility model provides a precision is higher, and the blade abrasive band grinding mechanism that the effect is stable.

Description

High-precision blade profile abrasive belt grinding mechanism

Technical Field

The utility model relates to a grinding equipment field, especially a high accuracy blade profile abrasive band grinding mechanism.

Background

The numerical control grinding machine is more and more widely applied to mechanical manufacturing and machining, blades with complex structures can be ground and machined, the blades are complex in shape, the material hardness is high, and the precision requirement is high, so that the high requirement is provided for the machining precision of a machine tool. When a conventional machine tool grinds a blade, after the blade moves for many times, the blade cannot be guaranteed to be in contact with the blade along a direction perpendicular to a grinding surface, the inclined direction inertial force carried by the inclined blade can affect the grinding surface, and the machining precision of the blade is difficult to meet the standard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a higher blade profile abrasive band grinding mechanism of precision.

The purpose of the utility model is realized through the following technical scheme:

a high-precision blade profile abrasive belt grinding mechanism comprises a normal detection device, a grinding wheel grinding device, an abrasive belt grinding device, a Y-axis sliding plate connecting plate, an air cylinder, a rack and a movable assembly, wherein the normal detection device, the grinding wheel grinding device and the abrasive belt grinding device are sequentially connected to the Y-axis sliding plate connecting plate from high to low, the air cylinder is respectively arranged on the normal detection device, the grinding wheel grinding device and the abrasive belt grinding device, the Y-axis sliding plate connecting plate is arranged on the rack in a sliding mode, the movable assembly is arranged at the bottom end of the rack, and the movable assembly is used for driving the rack to move in the direction perpendicular to a piston rod of the air cylinder.

Furthermore, the abrasive belt grinding mechanism comprises an abrasive belt, a contact wheel and a floating device, the abrasive belt is driven by a driving wheel to rotate at a high speed, the contact wheel is hinged to one end of the floating device, the abrasive belt is wound on the contact wheel in a tensioning mode, and the contact wheel is used for pushing the abrasive belt to be in contact with the profile of the blade.

Furthermore, the floating device is of a telescopic rod structure.

Further, still include the threaded rod, still seted up in the frame and erect the groove, the threaded rod rotates to set up the perpendicular inslot of frame, Y axle slide connecting plate is kept away from normal direction detection device's one end still is provided with the lug, the lug slides and sets up the perpendicular inslot of frame, the lug with threaded rod threaded connection.

Furthermore, the movable assembly comprises a rotary disc and a movable groove, the frame is installed on the rotary disc, and the rotary disc is movably arranged in the movable groove.

Furthermore, a pair of electric wheels is further arranged on the rotary table and used for driving the rotary table to move along the movable groove.

Furthermore, the normal direction detection device comprises an orientation rod, a steel ball, a movable sleeve and a limiting spring, wherein a blind hole is formed in one end, far away from the Y-axis sliding plate connecting plate, of the orientation rod, two ends of the limiting spring are connected to the movable sleeve and the blind hole of the orientation rod respectively, a hemispherical groove is formed in the movable sleeve, the steel ball is rotatably clamped in the movable sleeve, and the steel ball is used for being in contact with the profile of the blade.

Furthermore, the normal direction detection device further comprises a direction limiting sleeve, the direction limiting sleeve is connected to the movable sleeve, the direction limiting sleeve extends into the inner side of the blind hole of the directional rod, and the direction limiting spring penetrates through the center of the direction limiting sleeve.

The utility model has the advantages of it is following:

the utility model discloses in the use, device itself is in the horizontality always, normal direction detection device earlier with the contact of blade profile, the grinding face of confirming device itself alignment blade, then grinding wheel grinding device and abrasive band grinding device just give along the normal direction level of blade under the promotion of cylinder, self velocity direction is perpendicular with the blade profile when guaranteeing grinding wheel grinding device and abrasive band grinding device and blade contact, gravity component when having eliminated grinding wheel grinding device and abrasive band grinding device swing and incline direction's inertial force to the contact surface's contact pressure's influence, the grinding precision of assurance grinding machine is enough, this device simple structure, and convenient operation, machining precision and surface quality when ensureing the grinding.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the movable trough of the present invention;

FIG. 3 is a schematic view of the structure of the normal direction testing device of the present invention;

in the figure: the device comprises a 1-normal detection device, a 2-grinding wheel grinding device, a 3-Y-axis sliding plate connecting plate, a 5-air cylinder, a 6-rack, a 7-rotating disc, an 8-movable groove, a 9-electric wheel, a 101-directional rod, a 102-steel ball, a 103-movable sleeve, a 104-direction limiting sleeve, a 105-limiting spring, a 301-convex block and a 601-threaded rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising "does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element.

The present invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-3, a high-precision blade profile abrasive belt grinding mechanism comprises a normal direction detection device 1, a grinding wheel grinding device 2, an abrasive belt grinding device, a Y-axis slide plate connection plate 3, a cylinder 5, a frame 6 and a movable assembly, wherein the normal direction detection device, the grinding wheel grinding device 2 and the abrasive belt grinding device are sequentially connected to the Y-axis slide plate connection plate 3 from high to low, the cylinder 5 is respectively arranged on each of the normal direction detection device 1, the grinding wheel grinding device 2 and the abrasive belt grinding device, the normal direction detection device 1, the grinding wheel grinding device 2 and the abrasive belt grinding device are respectively operated corresponding to the cylinder 5 to enter a working area to be contacted with a blade, the Y-axis slide plate connection plate 3 is slidably arranged on the frame 6, the Y-axis sliding plate connecting plate 3 drives the normal direction detection device 1, the grinding wheel grinding device 2 and the abrasive belt grinding device to move on the frame 6 in the vertical direction, the movable assembly is arranged at the bottom end of the frame 6 and is used for driving the frame 6 to move in the direction perpendicular to the piston rod of the air cylinder 5.

Further, the abrasive belt grinding mechanism comprises an abrasive belt 401, a contact wheel 402 and a floating device 403, the abrasive belt 401 is tensioned by a tensioning wheel under the pushing of a tensioning cylinder, a servo motor drives an abrasive belt driving wheel to rotate through a synchronous belt, the abrasive belt wrapped among the contact wheel 402, the idle wheel and the driving wheel rotates at a high speed, the contact wheel 402 is hinged to one end of the floating device 403, and the floating device 403 exerts a contact pressure on the blade profile through the contact wheel 402, so that the abrasive belt 401 is in tight contact with the blade profile, and the abrasive belt 401 and the blade profile generate relative motion, thereby achieving the purpose of grinding.

Further, the floating device 403 is a telescopic rod structure.

Further, still include threaded rod 601, perpendicular groove has still been seted up on the frame 6, threaded rod 601 rotates to set up the perpendicular inslot of frame 6, Y axle slide connecting plate 3 is kept away from the one end of normal direction detection device 1 still is provided with lug 301, lug 301 slides and sets up the perpendicular inslot of frame 6, lug 301 with threaded rod 601 threaded connection, threaded rod 601 rotate under motor drive, and the drive lug moves in the perpendicular inslot of frame 6 along threaded rod 601.

Further, the movable assembly comprises a rotary table 7 and a movable groove 8, the frame 6 is mounted on the rotary table 7, the rotary table 7 is movably arranged in the movable groove 8, and the rotary table 7 and the movable groove 8 respectively provide rotation and perpendicular to the grinding device for the effect of moving in the direction of the piston rod of the air cylinder 5.

Further, still be provided with a pair of electronic round 9 on carousel 7, electronic round 9 is used for the drive carousel 7 is followed movable groove 8 removes, and electronic round 9 is used for letting the activity of carousel in movable groove 8 more smooth and quick.

Further, the normal direction detection device 1 comprises an orientation rod 101, a steel ball 102, a movable sleeve 103 and a limiting spring 105, a blind hole is formed in one end, away from the Y-axis sliding plate connecting plate 3, of the orientation rod 101, two ends of the limiting spring 105 are connected to the movable sleeve 103 and the blind hole of the orientation rod 101 respectively, a hemispherical groove is formed in the movable sleeve 103, the steel ball 102 is rotatably clamped in the movable sleeve 103, the steel ball 102 is used for being in contact with the blade profile, the steel ball 102 is in contact with the blade profile to determine the position, meanwhile, the steel ball 102 can roll along the blade profile in the grinding process and is not easy to damage, abrasion of the orientation rod 101 is avoided, the limiting spring 105 pulls the movable sleeve 103 to be free from the orientation rod 103, when the pressure on the steel ball 102 is too high, the movable sleeve 103 can be pushed to move towards the direction close to the orientation rod 103, the pressure on the steel ball 102 is relieved, and the service life of the device is prolonged.

Further, normal direction detection device 1 still includes limit to cover 104, limit to cover 104 and connect on the movable sleeve 103, limit to cover 104 stretch into the blind hole of orientation lever 101 is inboard, limit spring 105 follows limit to cover 104 center is passed, and the moving direction of restriction movable sleeve 103 avoids movable sleeve 103 skew locating lever 101 axis, hoisting device's stability.

The device takes the stainless steel material blade as a test object, designs an orthogonal test and a single-factor test method, and researches the quantitative relation of the grinding process parameters to the removal amount of the blade material through the test; an empirical formula among the average thickness of material removal, contact pressure and feed speed is determined, motion performance parameters of each shaft and grinding contact pressure control parameters during grinding are obtained, and a novel horizontally-arranged abrasive belt grinding machine tool structure is provided aiming at the problem that the contact pressure of the existing abrasive belt grinding machine is difficult to accurately control due to the influence of gravity and inertia force in the grinding process, so that the influence of gravity and inertia force on the contact pressure is eliminated, and the control precision of the contact pressure is improved; aiming at the deformation error generated by blade clamping and the grinding requirements of different characteristic areas of the blade profile, a composite grinding abrasive belt mechanism is designed, so that the problems of blade profile error detection and profile, blade root, damping table fillet and intersecting surface equal-division characteristic area grinding are solved

The foregoing is illustrative of the present invention and is not to be construed as limiting thereof in any manner. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention all belong to the protection scope of the present technical solution, without departing from the contents of the technical solution of the present invention.

Claims

1. The high-precision blade profile abrasive belt grinding mechanism is characterized by comprising a normal detection device (1), an abrasive belt grinding device (2), a Y-axis sliding plate connecting plate (3), an air cylinder (5), a rack (6) and a movable assembly, wherein the normal detection device (1), the abrasive belt grinding device (2) and the abrasive belt grinding device are sequentially connected to the Y-axis sliding plate connecting plate (3) from high to low through a linear auxiliary guide rail, the normal detection device (1), the abrasive belt grinding device (2) and the abrasive belt grinding device are respectively provided with the air cylinder (5), the Y-axis sliding plate connecting plate (3) is arranged on the rack (6) in a sliding mode, the movable assembly is arranged at the bottom end of the rack (6), and the movable assembly is used for driving the rack (6) to move in the direction perpendicular to a piston rod of the air cylinder (5).

2. A high precision blade profile belt grinding mechanism according to claim 1, characterized in that the belt grinding mechanism comprises a belt (401), a contact wheel (402) and a floating device (403), the belt (401) is driven by a driving wheel to rotate at high speed, the contact wheel (402) is hinged at one end of the floating device (403), the belt (401) is wound on the contact wheel (402) in tension, and the contact wheel (402) is used for pushing the belt (401) to contact with the blade profile.

3. A high precision blade profile belt grinding mechanism according to claim 2, characterized in that the floating device (403) is a telescopic rod structure.

4. The high-precision blade profile abrasive belt grinding mechanism according to claim 1, further comprising a threaded rod (601), wherein a vertical groove is further formed in the frame (6), the threaded rod (601) is rotatably disposed in the vertical groove of the frame (6), a protrusion (301) is further disposed at one end of the Y-axis sliding plate connecting plate (3) away from the normal direction detection device (1), the protrusion (301) is slidably disposed in the vertical groove of the frame (6), and the protrusion (301) is in threaded connection with the threaded rod (601).

5. A high precision blade profile belt grinding mechanism according to claim 1, characterized in that the movable assembly comprises a rotary disc (7) and a movable groove (8), the frame (6) is mounted on the rotary disc (7), and the rotary disc (7) is movably arranged in the movable groove (8).

6. A high accuracy blade profile belt grinding mechanism according to claim 5, characterized in that a pair of electric wheels (9) is further arranged on the rotary table (7), and the electric wheels (9) are used for driving the rotary table (7) to move along the movable groove (8).

7. The high-precision blade profile abrasive belt grinding mechanism according to claim 1, wherein the normal direction detection device (1) comprises an orientation rod (101), a steel ball (102), a movable sleeve (103) and a limiting spring (105), a blind hole is formed in one end, away from the Y-axis sliding plate connecting plate (3), of the orientation rod (101), two ends of the limiting spring (105) are respectively connected into the blind holes of the movable sleeve (103) and the orientation rod (101), a hemispherical groove is formed in the movable sleeve (103), the steel ball (102) is rotatably clamped in the movable sleeve (103), and the steel ball (102) is used for being in contact with the blade profile.

8. A high precision blade profile belt grinding mechanism according to claim 7, characterized in that the normal direction detection device (1) further comprises a direction limiting sleeve (104), the direction limiting sleeve (104) is connected to the movable sleeve (103), the direction limiting sleeve (104) extends into the inner side of the blind hole of the orientation rod (101), and the limiting spring (105) passes through the center of the direction limiting sleeve (104).