CN211760808U - Three-section type profile grinding wheel dressing device for circular arc connecting straight line - Google Patents
Three-section type profile grinding wheel dressing device for circular arc connecting straight line Download PDFInfo
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- CN211760808U CN211760808U CN202020220882.3U CN202020220882U CN211760808U CN 211760808 U CN211760808 U CN 211760808U CN 202020220882 U CN202020220882 U CN 202020220882U CN 211760808 U CN211760808 U CN 211760808U
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Abstract
The utility model discloses a three-section profile grinding wheel dressing device of a circular arc connecting line, which relates to the field of grinding wheel dressing of grinding processing by a forming method, and comprises a support, a rotating arm and a dressing pen holder, wherein one end of the rotating arm is rotatably connected with the support, the dressing pen holder is slidably connected with the other end of the rotating arm, a grinding wheel dressing pen is inserted into the dressing pen holder, and a dressing pen point is just opposite to a rotating shaft of the rotating arm relative to the support when the dressing pen holder is at the neutral position; the trimming pen holder further comprises a rotation limiting device and a linear motion limiting device, the rotation limiting device is used for limiting the relative rotation of the rotating arm and the support under a set angle, and the linear motion limiting device is used for limiting the relative sliding of the trimming pen holder and the rotating arm at a set position. The device can realize the rapid dressing of the grinding wheel with the circular arc and straight line profile, and has convenient operation and high efficiency; meanwhile, the grinding wheel after each trimming can be kept consistent, and the stability and consistency of the machining size of the workpiece are further ensured.
Description
Technical Field
The utility model relates to a shaping method abrasive machining's emery wheel field of maintaining specifically is a circular arc is linear syllogic profile wheel trimming device even.
Background
In the field of aviation material testing, when a material tensile endurance test piece, an impact test piece, a fracture toughness KIC test piece, a crack propagation test piece and the like are subjected to performance testing, a V-shaped notch or a U-shaped notch with the angle of 30-60 degrees needs to be processed on a test sample. When the notch is machined, the machining dimension precision is required to be high, and the machining position is required to be precise.
At present, the common treatment method in the industry is to grind a rough notch on a test piece by using a forming grinding wheel, finish the grinding wheel to enable the edge of the grinding wheel to be matched with the shape of the notch to be processed, and then finish the rough notch on the test piece to the shape and the size of the notch required by a drawing by using the finished grinding wheel.
However, in practical applications, the profile shape of the notch for testing is usually in a form of connecting a straight line segment and a circular arc segment, which requires trimming a corresponding straight edge and a corresponding circular arc edge at the edge profile of the grinding wheel during the finishing of the grinding wheel. In the prior art, the method for dressing the grinding wheel generally comprises the steps of firstly using a sine corrector to repair the bevel edge or the straight edge of the grinding wheel, and then using an arc corrector to repair the arc of the grinding wheel at the joint of the two bevel edges or the straight edges of the grinding wheel. Such an operation method has problems of low efficiency and high labor intensity. Meanwhile, accurate positioning is not easy to realize in the dressing process, the dressing difficulty is high, and the consistency of the grinding wheels dressed each time is difficult to ensure; and because the radius of the tip part of a plurality of V-shaped notches is very small, the abrasion of the tip end of the grinding wheel is passivated quickly when the notches are machined, so that when a test piece is finely ground, the profile of the grinding wheel is required to be trimmed after the test piece is ground by the finely-finished grinding wheel, and the problem of poor stability and consistency of a test sample is further caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a three-section type contour grinding wheel dressing device for a circular arc connecting line, which can realize the rapid dressing of the contour grinding wheel of the circular arc connecting line, and has convenient operation and high efficiency; meanwhile, the grinding wheel after each dressing can be kept consistent, and the stability and consistency of the sample are further ensured.
The purpose of the utility model is realized through the following technical scheme:
a three-section type profile grinding wheel dressing device for a circular arc connecting line comprises a support, a rotating arm and a dressing pen holder, wherein one end of the rotating arm is rotatably connected with the support, the dressing pen holder is slidably connected with the other end of the rotating arm, a grinding wheel dressing pen is inserted into the dressing pen holder, and the pen point of the grinding wheel dressing pen is over against a rotating shaft of the rotating arm relative to the support;
the trimming pen holder is characterized by further comprising a rotation limiting device and a linear motion limiting device, wherein the rotation limiting device is used for limiting the relative rotation of the rotating arm and the support under a set angle, and the linear motion limiting device is used for limiting the relative sliding of the trimming pen holder and the rotating arm under a set position.
Furthermore, the rotation limiting device comprises a shaft sleeve and an index plate, a positioning plate is hinged to the outer side wall of the shaft sleeve through a hinged support, the index plate is in an annular column shape, and a plurality of angle positioning notches are formed in the annular periphery of the index plate along the radial direction of the index plate;
one end of the rotating arm is provided with a rotating shaft, the rotating shaft is rotatably arranged in the support, one end of the rotating shaft sequentially penetrates through the support, the dividing plate and the shaft sleeve, the rotating shaft is fixedly connected with the shaft sleeve, the dividing plate is fixedly connected with the support, and the positioning plates can be respectively inserted into the angle positioning notches.
Furthermore, a plurality of angle location breach includes centering breach, left angle location breach and right angle location breach symmetry set up in the both sides of centering breach.
Furthermore, an annular slide rail is processed on the end face of the index plate close to one end of the shaft sleeve, two arc-shaped check blocks are detachably mounted in the annular slide rail, one arc-shaped check block is used for limiting the hinged support when the rotating arm rotates relative to the support so that the positioning plate is opposite to the left angle positioning notch, and the other arc-shaped check block is used for limiting the hinged support when the rotating arm rotates relative to the support so that the positioning plate is opposite to the right angle positioning notch.
Furthermore, the tail end of the rotating arm is upwards provided with a sliding rail, the top of one end of the trimming pen holder is a plane, the bottom of the trimming pen holder is provided with a ram, the ram is slidably arranged in the sliding rail, the tail end of the rotating arm is detachably connected with a pressing plate, and the pressing plate is used for keeping the sliding fit of the ram and the sliding rail.
Furthermore, a middle groove is formed in the tail end of the rotating arm, a middle plate is hinged to the finishing pen holder, and the middle plate can be inserted into the middle groove.
Furthermore, the direct-acting limiting device comprises a left baffle and a right baffle, one end of the left baffle and one end of the right baffle are respectively hinged to two sides of the rotating arm, and the other end of the left baffle and the other end of the right baffle can simultaneously clamp and position the trimming pen holder after rotation.
Furthermore, the direct-acting limiting device further comprises a screw rod and a nut, and the screw rod sequentially penetrates through the right baffle, the rotating arm and the left baffle and then is in threaded connection with the nut.
The utility model has the advantages that:
the three-section type profile grinding wheel dressing device for the circular arc connecting straight line comprises a support, a rotating arm and a dressing pen holder. The rotating arm can rotate relative to the support, and the trimming pen holder can slide relative to the rotating arm; and a rotary limiting device and a linear limiting device are further arranged to accurately limit the relative rotation and relative sliding processes respectively. The dressing device can be used for directly dressing the grinding wheel with the circular arc-connected straight line profile, the operation is simpler, the labor intensity can be effectively reduced, and the dressing efficiency of the grinding wheel is improved; meanwhile, the grinding wheel is dressed by the device, the dressing process can be completed only by once positioning, the defect of difficult positioning is overcome, and the dressing quality of the grinding wheel is easier to ensure. Through the optimization design of the structure, the accuracy and stability of the limiting and positioning of each moving part are ensured, and the consistency of the grinding wheels dressed at each time is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of a three-section type contour grinding wheel dressing device with circular arc connecting lines according to the present invention;
FIG. 2 is an exploded view of the three-section type outline grinding wheel dressing device of the present invention;
FIG. 3 is an exploded view of a rotation limiting device of a three-section type contour grinding wheel dresser for circular and straight lines according to the present invention;
FIG. 4 is a schematic view of a connection structure of a rotating arm and a dressing pen stand in a three-section type contour grinding wheel dressing device with a circular arc connecting line according to the present invention;
fig. 5 is a schematic structural view of a direct-acting limiting device in a three-section type contour grinding wheel dressing device of a circular arc connecting straight line of the present invention.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1 and 2, the three-segment type profile grinding wheel dressing device for circular arcs and straight lines comprises a support 100, a rotating arm 200 and a dressing pen holder 300. One end of the rotating arm 200 is rotatably connected with the support 100, the dressing pen holder 300 is slidably connected with the other end of the rotating arm 200, the grinding wheel dressing pen 310 is inserted into the dressing pen holder 300, and the pen point of the grinding wheel dressing pen 310 faces a rotating shaft of the rotating arm 200 relative to the support 100 when the dressing pen holder 300 is at the middle position. The grinding wheel dressing device further comprises a rotation limiting device 400 and a linear motion limiting device 500, wherein the rotation limiting device 400 is used for limiting the relative rotation of the rotating arm 200 and the support 100 under a set angle, and the linear motion limiting device 500 is used for limiting the relative sliding of the dressing pen holder 300 and the rotating arm 200 under a set position.
At present, in most cases, when a grinding wheel with a circular arc and a straight line profile is dressed, a sine corrector is generally used for repairing the bevel edge or the straight edge of the grinding wheel, and then a circular arc corrector is used for repairing the circular arc of the grinding wheel at the joint of the two bevel edges or the straight edges of the grinding wheel. In the process of dressing the grinding wheel, tools for dressing need to be replaced, the dressing process is complicated, and the dressing efficiency is low; meanwhile, the situation of inaccurate positioning often occurs in the dressing process, the dressing difficulty of the grinding wheel is high, the dressing quality is difficult to ensure, and the consistency of the grinding wheel dressed every time cannot be ensured.
When the straight line profile part of the grinding wheel is repaired, the rotation limiting device 400 is utilized to lock the support 100 and one end of the rotating arm 200, so that the support and the rotating arm are relatively fixed, at the moment, the direct-acting limiting device 500 is loosened, and the pen point of the grinding wheel dressing pen 310 can be driven to do straight line movement by sliding the dressing pen holder 300 at the other end of the rotating arm 200, so that the dressing of the straight line profile of the grinding wheel is completed. When the circular arc contour part of the grinding wheel is trimmed, the trimming pen holder 300 is fixed relative to the rotating arm 200 at the middle position by the direct-acting limiting device 500, and then the rotation limiting device 400 is opened to release the restriction on the support 100 and the rotating arm 200. Since the pen point of the grinding wheel dressing pen 310 is directly opposite to the rotating shaft of the rotating arm 200 relative to the support 100, the pen point of the dressing pen 310 can be driven to move in an arc track by rotating the rotating arm 200, and the dressing of the arc profile of the grinding wheel is completed.
From the above trimming process, the grinding wheel trimming device can respectively complete the trimming process of the grinding wheel straight line profile and the trimming process of the grinding wheel circular arc profile, and simultaneously can complete the switching of the trimming of the two grinding wheel profiles only by opening or locking the rotation limiting device 400 and the linear motion limiting device 500. That is to say, the device can directly trim the grinding wheel with the profile of the circular arc connecting straight line, compared with the existing grinding wheel trimming mode, the device does not need to switch trimming tools, is simpler to operate, can effectively reduce the labor intensity and improve the grinding wheel trimming efficiency; meanwhile, the grinding wheel is dressed by the device, the dressing process can be completed only by once positioning, the defect of difficult positioning is overcome, the dressing quality of the grinding wheel is easier to ensure, and the consistency of the grinding wheel dressed every time is ensured.
In practice, as shown in fig. 2 and 3, the rotation limiting device 400 includes a sleeve 410 and an index plate 420. The outer side wall of the shaft sleeve 410 is hinged with a positioning plate 430 through a hinged support. The index plate 420 is in a ring column shape, and a plurality of angle positioning notches are formed in the circumference of the index plate 420 along the radial direction of the index plate. One end of the rotating arm 200 is provided with a rotating shaft 210, the rotating shaft 210 is rotatably arranged in the support 100, one end of the rotating shaft 210 sequentially penetrates through the support 100, the index plate 420 and the shaft sleeve 410, the rotating shaft 210 is fixedly connected with the shaft sleeve 410, the index plate 420 is fixedly connected with the support 100, and the positioning plate 430 can be respectively inserted into a plurality of angle positioning notches. During operation, the positioning plate 430 is rotated to be inserted into a certain angle positioning notch, so that the relative rotation between the shaft sleeve 410 and the index plate 420 can be limited under a set angle corresponding to the angle positioning notch, and the locking process of the rotation limiting device 400 on the support 100 and the rotating arm 200 is completed; the positioning plate 430 is pulled out of the angular positioning notch, so that the shaft sleeve 410 and the index plate 420 can be separated, and the support 100 and the rotating arm 200 can rotate relatively.
In specific implementation, the plurality of angular positioning notches include a centering notch 441, a left angular positioning notch 442, and a right angular positioning notch 443. The centering notch 441 is disposed at the top end of the indexing plate 420, and the left angle positioning notch 442 and the right angle positioning notch 443 are symmetrically disposed at both sides of the centering notch 441. In aviation material test field, often need process V type breach, the profile of this type breach includes the circular arc section of two hypotenuses and bottom, processes this kind of breach and need to repair the toper emery wheel that the tip took R. In practice, the left angle positioning notch 442 and the right angle positioning notch 443 can make the rotation limiting device 400 have two limiting points, and the included angle of the left angle positioning notch 442 and the right angle positioning notch 443 distributed on the indexing plate 420 is specifically set according to the actual opening angle of the two oblique sides of the V-shaped notch. When the conical grinding wheel with the tip provided with the R is trimmed, the trimming pen holder 300 is relatively fixed with the rotating arm 200 at the middle position, and the height of the pen point of the trimming pen 310 is adjusted in a universal mode according to the trimming R value; then, feeding the grinding wheel by the pen point of the grinding wheel dressing pen 310 to the center of the outline of the grinding wheel to be dressed, and enabling the dressing pen point to lightly contact the grinding wheel; then, the positioning plate 430 is pulled out from the centering notch 441, and the rotating arm 200 is rotated left and right to trim the grinding wheel tip R. The positioning plate 430 is inserted into the left angle positioning notch 442 to complete the locking; then, the right-side oblique edge of the grinding wheel can be finished by sliding the dressing pen holder 300. The positioning plate 430 is pulled out from the left angle positioning notch 442, and after the rotating arm 200 is rotated in the right direction, the positioning plate 430 is inserted into the right angle positioning notch 443 to complete locking; and then finishing the left oblique edge of the grinding wheel by sliding the finishing pen holder 300. It should be noted that after each bevel edge of the grinding wheel is dressed, the sanding pen holder 300 must return to its neutral position, i.e., the dressing pen point is aligned with the center of the contour of the grinding wheel R to be dressed, in order to perform the above-described rotating motion of the rotating arm 200.
Further, an annular slide rail 450 is formed on an end surface of the index plate 420 near one end of the shaft sleeve 410, two arc-shaped stoppers 451 are detachably mounted in the annular slide rail 450, one of the arc-shaped stoppers 451 is used for limiting the hinge support when the rotating arm 200 rotates relative to the support 100 so that the positioning plate 430 faces the left angle positioning notch 442, and the other arc-shaped stopper 451 is used for limiting the hinge support when the rotating arm 200 rotates relative to the support 100 so that the positioning plate 430 faces the right angle positioning notch 443. Through the arrangement of the two arc-shaped blocks 451, two rotating end points of the rotating arm 200 relative to the support 100 are limited, the phenomenon that the rotating process exceeds the trimming range of the circular arc section of the grinding wheel to cut the grinding wheel is avoided, and the accurate and stable trimming transition of the straight section and the circular arc section of the grinding wheel in the trimming process is ensured.
It should be noted that, in practical implementation, the left angle positioning notches 442 and the right angle positioning notches 443 are arranged in pairs in a plurality of groups, and each group of the left angle positioning notches 442 and the right angle positioning notches 443 corresponds to the dressing of a conical grinding wheel with a tip belt R having a different opening angle, so that the dressing apparatus can be applied to a plurality of grinding wheel dressing situations. The indexing disk 420 is also replaceable in actual use.
In addition, in this embodiment, the index plate 420 is directly installed on the support 100 through a bolt, and the shaft sleeve 410 is sleeved on the rotating shaft 210 and fixed through a locking screw after the zero position is determined, so that the assembly, the replacement and the installation are convenient. Of course, the positioning plate 430 is directly fixed to the support 100 by fixedly mounting the index plate 420 on the rotating shaft 210, and the entire function of the rotation limiting device 400 can still be achieved.
The slidable connection between the trimming pen holder 300 and the rotating arm 200 can be achieved by various sliding manners, such as sliding block and sliding rail fit, sliding block and guiding rod fit, and the like. In this embodiment, as shown in fig. 4, the tail end of the rotating arm 200 is upwardly provided with a slide rail 220, the top of one end of the finishing pen holder 300 is a plane, the bottom of the finishing pen holder is provided with a ram 320, the ram 320 is slidably disposed in the slide rail 220, the tail end of the rotating arm 200 is detachably connected with a pressing plate 240, and the bottom surface of the pressing plate 240 is in sliding fit with the top plane of one end of the finishing pen holder 300. The sliding mechanism has a simple and compact structure and higher movement rigidity by arranging the hook-shaped sliding rail to be matched with the ram, so that the stability of sliding action is ensured; the pressing plate 240 is arranged to make the bottom surface of the pressing plate slide-fit with the top plane at one end of the finishing pen holder 300, so that the sliding process is further limited and guided, and the finishing pen holder 300 and the rotating arm 200 are more simple and convenient to disassemble and assemble while the sliding track is ensured to be accurate and stable.
A middle groove 230 is formed in the center of the tail end of the rotating arm 200, a middle plate 530 is hinged to the finishing pen holder 300, and the middle plate 530 can be inserted into the middle groove 230. When the middle plate 530 is inserted into the middle groove 230, the direct-acting limiting can be realized, and the relative sliding between the trimming pen holder 300 and the rotating arm 200 is limited; when the middle plate 530 is disengaged from the middle groove 230, the direct-acting limiting is cancelled, and the finishing pen holder 300 and the rotating arm 200 can slide relatively. In the process of grinding wheel dressing, the dressing pen holder 300 also needs to be positioned with great importance, and the cooperation between the middle plate 530 and the middle groove 230 plays a role in precisely positioning the middle position of the grinding wheel dressing pen 310, and preferably, the clearance after precise positioning should be within 0.01 mm. In practice, when the neutral plate 530 is inserted into the neutral groove 230, it is necessary to ensure that the pen tip of the grinding wheel dresser 310 is in the neutral position.
The neutral plate 530 and the neutral groove 230 can realize the functions of neutral positioning and direct-acting limiting. In the design, as shown in fig. 5, the direct-acting limiting device 500 further includes a left baffle 511 and a right baffle 512, one end of the left baffle 511 and one end of the right baffle 512 are respectively hinged to two sides of the rotating arm 200, when the pen point of the emery wheel dressing pen 310 is located at the neutral position thereof, the left baffle 511 and the right baffle 512 are rotated, the dressing pen holder 300 can be clamped and limited between the left and right baffles at the same time, and it is ensured that the emery dressing pen holder 300 can be quickly returned to the neutral position after finishing the single edge, so that the neutral plate 530 can be quickly inserted into the neutral groove 230, the precise positioning is completed, and the accurate and quick positioning is ensured. Only after inserting the neutral plate 530 into the neutral slot 230 can the alignment plate 430 be rotated out of the angular alignment notch and R is trimmed by rotating the rotatable arm 200. When the bevel edge profile of the grinding wheel needs to be trimmed, the middle plate 530 needs to be pulled out from the middle groove 230, the left baffle 511 or the right baffle 512 in the corresponding direction needs to be rotated, and the limiting function of the right baffle 512 or the left baffle 511 in the other direction is kept, so that misoperation is avoided, and the accuracy and the stability of the grinding wheel trimming process are ensured.
Further, the linear motion limiting device 500 further comprises a screw 520 and a nut 540, and the screw 520 sequentially passes through the right baffle 512, the rotating arm 200 and the left baffle 511 and then is connected with the nut 540 through threads. In order to ensure accurate positioning of the dresser pen holder 300, it is theoretically necessary that the distance between the left baffle 511 and the right baffle 512 is exactly equal to the width of the dresser pen holder 300 near the end of the rotating arm 200. In practical application, for convenience of operation, the distance between the left baffle 511 and the right baffle 512 needs to be slightly larger than the end of the finishing pen holder 300 close to the rotating arm 200, and the best condition is that the left baffle 511 and the right baffle 512 can be conveniently rotated to clamp the finishing pen holder 300 between the two baffles, and meanwhile, sufficient friction force exists between the two baffles and the finishing pen holder 300 to prevent the two baffles from automatically separating from the finishing pen holder 300 under the action of self weight. In contrast, in the present embodiment, the distance between the left and right stoppers 511 and 512 can be adjusted by screwing the nut 540, and the optimal usage state is achieved by the elastic extension of the long screw 520.
Further, the above-mentioned dressing pen holder 300 is provided with an installation hole site, the grinding wheel dressing pen 310 is inserted and set up in this installation hole site, there is locking screw 301 on the dressing pen holder 300 through threaded connection still, one end of locking screw 301 is connected with handle 302, the other end of locking screw 301 is inserted in the dressing pen holder 300, its tip supports the lateral wall of grinding wheel dressing pen 310 and accomplishes the fixed of grinding wheel dressing pen 310, when using, the accessible is adjusted in order to obtain different dressing radiuses to the distance that stretches out of grinding wheel dressing pen 5.
The above is the preferred embodiment of the present invention, the device is not limited to trimming the V-shaped profile grinding wheel of the tip belt R, and as long as the circular arc of the straight line segment-circular arc segment-straight line segment is connected with the straight line profile grinding wheel, the device can perform trimming, and the overall trimming process is as follows:
firstly, selecting a suitable index plate 420 with a left angle positioning notch 442 and a right angle positioning notch 443 according to the contour shape of the grinding wheel to be trimmed, installing, fixing and correcting a zero position, and then fixing the corresponding positions of the left arc-shaped block 451 and the right arc-shaped block 451;
secondly, inserting the middle plate 530 into the middle groove 230, rotating the left baffle 511 and the right baffle 512 to clamp the dressing pen holder 300 between the two, inserting the positioning plate 430 into the centering notch 441, and adjusting and locking the position of the grinding wheel dressing pen 5 according to the trimming radius of the circular arc segment;
thirdly, fixing the relative position of the grinding wheel to be dressed and the device, enabling the pen point of the grinding wheel dressing pen 5 to be over against the central position of the circular arc section profile of the grinding wheel, starting a grinding machine to rotate the grinding wheel, and enabling the dressing pen point to be in light contact with the grinding wheel;
fourthly, rotating the positioning plate 430 to separate from the centering notch 441, rotating the rotating arm 200 to the left until the positioning plate is limited by the arc-shaped stopper 451, and rotating the positioning plate 430 to insert into the left angle positioning notch 442, thereby finishing the trimming of the right half R profile of the grinding wheel;
fifthly, rotating the right baffle 512 to separate the right baffle from the dressing pen holder 300, simultaneously rotating the middle plate 530 to separate the middle groove 230, and then sliding the dressing pen holder 300 towards the right baffle 512 to finish dressing the right linear profile of the grinding wheel;
sixthly, after finishing the trimming of the right side contour of the grinding wheel, returning the trimming pen holder 300 to the middle position, rotating the middle position plate 530 to insert the middle position plate into the middle position groove 230, simultaneously rotating the right baffle 512 to clamp the trimming pen holder 300, then rotating the positioning plate 430 to separate from the left angle positioning notch 442, then rotating the rotating arm 200 rightwards until being limited by the arc-shaped stopper 451, rotating the positioning plate 430 to insert the right angle positioning notch 443, and finishing the trimming of the left half R contour of the grinding wheel;
seventhly, rotating the left baffle 511 to separate the left baffle 511 from the dressing pen holder 300, simultaneously rotating the middle plate 530 to separate the middle groove 230, and then sliding the dressing pen holder 300 towards the left baffle 511 to finish dressing the left linear profile of the grinding wheel;
eighth, after finishing the two straight line profiles of the grinding wheel, the finishing pen holder 300 returns to the middle position, the middle position plate 530 is rotated to be inserted into the middle position groove 230, the left baffle 511 is rotated to clamp the finishing pen holder 300, the positioning plate 430 is rotated to be separated from the right angle positioning notch 443, and then the rotating arm 200 is rotated back and forth to finish the fine finishing of the circular arc section profile of the grinding wheel.
It is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments, and that it is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. A three-section type profile grinding wheel dressing device with circular arc connecting straight lines is characterized by comprising a support (100), a rotating arm (200) and a dressing pen holder (300), wherein one end of the rotating arm (200) is rotatably connected with the support (100), the dressing pen holder (300) is slidably connected with the other end of the rotating arm (200), a grinding wheel dressing pen (310) is inserted into the dressing pen holder (300), and the pen point of the grinding wheel dressing pen (310) is over against a rotating shaft of the rotating arm (200) relative to the support (100);
the trimming pen holder is characterized by further comprising a rotation limiting device (400) and a linear motion limiting device (500), wherein the rotation limiting device (400) is used for limiting the relative rotation of the rotating arm (200) and the support (100) under a set angle, and the linear motion limiting device (500) is used for limiting the relative sliding of the trimming pen holder (300) and the rotating arm (200) under a set position.
2. The three-section type profile grinding wheel dressing device of the circular-arc connecting-line type according to claim 1, characterized in that the rotation limiting device (400) comprises a shaft sleeve (410) and an index plate (420), a positioning plate (430) is hinged on the outer side wall of the shaft sleeve (410) through a hinged support, the index plate (420) is in an annular cylinder shape, and a plurality of angle positioning notches are formed in the periphery of the index plate (420) along the radial direction of the index plate;
one end of the rotating arm (200) is provided with a rotating shaft (210), the rotating shaft (210) is rotatably arranged in the support (100), one end of the rotating shaft (210) sequentially penetrates through the support (100), the index plate (420) and the shaft sleeve (410), the rotating shaft (210) is fixedly connected with the shaft sleeve (410), the index plate (420) is fixedly connected with the support (100), and the positioning plates (430) can be respectively inserted into the angle positioning notches.
3. The device for dressing a profile grinding wheel with three sections of circular and straight lines according to claim 2, wherein the plurality of angular positioning notches comprise a centering notch (441), a left angular positioning notch (442) and a right angular positioning notch (443), and the left angular positioning notch (442) and the right angular positioning notch (443) are symmetrically arranged at two sides of the centering notch (441).
4. The device for trimming the profile grinding wheel of the three-segment type with the circular arc connecting line according to claim 3, characterized in that the end surface of the index plate (420) close to one end of the shaft sleeve (410) is provided with an annular slide rail (450), two arc-shaped stoppers (451) are detachably mounted in the annular slide rail (450), one of the arc-shaped stoppers (451) is used for limiting the hinged support when the rotating arm (200) rotates relative to the support (100) so that the positioning plate (430) is opposite to the left angle positioning notch (442), and the other arc-shaped stopper (451) is used for limiting the hinged support when the rotating arm (200) rotates relative to the support (100) so that the positioning plate (430) is opposite to the right angle positioning notch (443).
5. The device for trimming the circular-arc-connected-straight-line three-section type profile grinding wheel according to claim 1, wherein a slide rail (220) is arranged upwards at the tail end of the rotating arm (200), the top of one end of the trimming pen holder (300) is flat, a ram (320) is arranged at the bottom of the trimming pen holder, the ram (320) is slidably arranged in the slide rail (220), a pressing plate (240) is detachably connected to the tail end of the rotating arm (200), and the pressing plate (240) is used for keeping the sliding fit of the ram (320) and the slide rail (220).
6. The device for trimming the three-section type contour grinding wheel with the circular arc connecting line according to claim 1, characterized in that a middle groove (230) is formed at the tail end of the rotating arm (200), a middle plate (530) is hinged on the trimming pen holder (300), and the middle plate (530) can be inserted into the middle groove (230).
7. The device for trimming the profile grinding wheel with three sections of circular arcs and straight lines according to claim 6, wherein the linear motion limiting device (500) comprises a left baffle (511) and a right baffle (512), one end of the left baffle (511) and one end of the right baffle (512) are respectively hinged to two sides of the rotating arm (200), and the other end of the left baffle (511) and the other end of the right baffle (512) can simultaneously clamp and position the trimming pen holder (300) after rotation.
8. The device for trimming the profile grinding wheel with three sections of circular arcs and straight lines according to claim 7, wherein the linear motion limiting device (500) further comprises a screw (520) and a nut (540), and the screw (520) passes through the right baffle (512), the rotating arm (200) and the left baffle (511) in sequence and then is connected with the nut (540) through threads.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220882.3U CN211760808U (en) | 2020-02-27 | 2020-02-27 | Three-section type profile grinding wheel dressing device for circular arc connecting straight line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020220882.3U CN211760808U (en) | 2020-02-27 | 2020-02-27 | Three-section type profile grinding wheel dressing device for circular arc connecting straight line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894548A (en) * | 2021-03-17 | 2021-06-04 | 中国航发动力股份有限公司 | Marking pen grinding and clamping device and using method thereof |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894548A (en) * | 2021-03-17 | 2021-06-04 | 中国航发动力股份有限公司 | Marking pen grinding and clamping device and using method thereof |
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