WO2019041391A1

WO2019041391A1 - Lapping and polishing machine and auxiliary mechanism thereof

Info

Publication number: WO2019041391A1
Application number: PCT/CN2017/102090
Authority: WO
Inventors: 李辉; 莫金树; 郑连东
Original assignee: 广州市永合祥自动化设备科技有限公司
Priority date: 2017-08-31
Filing date: 2017-09-18
Publication date: 2019-03-07
Also published as: CN107457690A; CN107457690B

Abstract

A lapping and polishing machine and an auxiliary mechanism thereof. The auxiliary mechanism comprises an indexing plate (10), a bushing (20), and an eccentric assembly (30). One end of the bushing (20) is provided with a rotating shaft (210), and the other end is provided with a first shaft hole (220). The center of the first shaft hole (220) is not coaxial with the center of the rotating shaft (210). The rotating shaft (210) is rotatably connected to the indexing plate (10). One end of the eccentric assembly (30) is provided with a position-limiting column (310), and the other end is connected to a polishing wheel. An arc-shaped hole (230) is provided on an end surface of the bushing (20) near the indexing plate (10). The indexing plate (10) is provided with an adjustment hole (110). The eccentric assembly (30) is provided in the first shaft hole (220), and the position-limiting column (310) sequentially passes through the arc-shaped hole (230) and the adjustment hole (110). Multiple positioning holes (120) are provided on the indexing plate (10). The bushing (20) engages with one of the positioning holes (120) by means of a position-limiting mechanism (40), so as to be retained on the indexing plate (10). An eccentric distance between the eccentric assembly (30) and the rotating shaft (210) can be changed to adjust the radius of curvature of the rotation of the polishing wheel, thereby changing a motion trajectory of the polishing wheel to achieve different polishing effects.

Description

Grinding and polishing machine and its auxiliary mechanism

Technical field

This invention relates to polishing apparatus, and more particularly to an abrasive polishing machine and its auxiliary mechanism.

Background technique

With the development of economy and society, improving work efficiency and product quality has become an inevitable trend of development. Various tools are also increasingly oriented towards energy conservation, ease of use, safety and efficiency, and multi-functionality. Grinding and polishing machines are no exception for beauty.

The usual grinding and polishing machine is directly connected with the polishing wheel. The polishing line is relatively thick, and the aperture is easily generated on the polished surface, making the polished surface look uneven, smooth and unattractive.

Summary of the invention

Based on this, the present invention overcomes the defects of the prior art, and provides an abrasive polishing machine and an auxiliary mechanism thereof, which are difficult to leave polishing marks and effectively improve the polishing effect.

An auxiliary mechanism for an abrasive polishing machine, comprising an indexing plate, a sleeve and an eccentric assembly, the sleeve has one end with a rotating shaft, and the other end is provided with a first shaft hole, the center of the first shaft hole is The center of the rotating shaft has different shafts, and the rotating shaft is rotatably connected with the indexing plate. One end of the eccentric component is provided with a limiting post, and the other end is connected with the polishing wheel, and the sleeve is disposed near the end surface of the indexing plate. An arcuate hole is disposed, the indexing plate is provided with an adjusting hole, the eccentric component is disposed in the first shaft hole, and the limiting post is sequentially disposed in the arc hole and the adjusting hole, The indexing plate is provided with a plurality of positioning holes, and the sleeve is locked on the indexing plate by a limiting mechanism and one of the positioning holes.

Its further technical solutions are as follows:

The eccentric assembly includes an eccentric adjusting piece, an eccentric sleeve, a spring, a clutch adjusting block and a connecting shaft, the eccentric adjusting piece is provided with a through hole, and the limiting post is disposed on the eccentric sleeve, and the clutch adjusting block and the clutch The first end of the connecting shaft is fixedly connected, and the eccentric sleeve is disposed on the clutch adjusting block, and the limiting post is sequentially disposed in the through hole, the arc hole and the adjusting hole, and the spring end is at a position On the sleeve, The other end is abutted on the eccentric adjustment piece, and the eccentric adjustment piece is pressed against the clutch adjustment block. When the resistance of the clutch adjustment block is greater than the rated resistance, the clutch adjustment block rotates relative to the eccentric adjustment piece.

The eccentric assembly further includes a bearing, the bearing sleeve is sleeved on the connecting shaft, the connecting shaft is provided with a first circlip, and the first circlip is located between the bearing and the clutch adjusting block, the eccentric sleeve Set the bearing and clutch adjustment block.

a first tapered groove is disposed on an end surface of the eccentric adjusting piece toward the clutch adjusting block, and a first tapered protruding portion is disposed in the first tapered groove, and the clutch adjusting block faces the end surface of the eccentric adjusting piece The first tapered groove is matched in a tapered shape, and the clutch adjusting block faces the end surface of the eccentric adjusting piece and is provided with a second tapered groove matching the first tapered boss.

The connecting shaft includes a first shaft segment, a second shaft segment and a third shaft segment which are sequentially connected, the diameter of the first shaft segment is smaller than the diameter of the second shaft segment, and the diameter of the second shaft segment is smaller than the third shaft segment The first tapered boss is provided with a first mounting hole matched with the first shaft segment, and the second tapered groove is provided with a second mounting hole matched with the second shaft segment. a first annular groove is disposed in a middle portion of the second shaft segment, the first circlip is disposed in the annular groove, and the bearing is sleeved on the second shaft segment and located in the third shaft segment and the first circlip The clutch adjustment block is sleeved on the second shaft segment and located between the first shaft segment and the first retaining spring, and the clutch adjusting block is fixed on the second shaft segment by the split pin, A shaft section extends into the first mounting hole.

a accommodating groove is disposed on an end surface of the eccentric adjusting piece away from the clutch adjusting block, a fixing hole is disposed in the receiving groove, the spring is a conical spring, and a large end of the conical spring is adjacent to the eccentric adjusting piece, and The end of the large end of the conical spring is engaged in the fixing hole.

One end of the eccentric sleeve away from the eccentric adjusting piece is provided with a shaft seal, the third shaft section extends through the shaft seal and protrudes from the eccentric sleeve, and the connecting shaft is provided with a thread on an end surface away from the eccentric adjusting piece. hole.

The auxiliary mechanism of the grinding and polishing machine further includes a second circlip, a second annular groove is disposed at an end of the first shaft hole away from the rotating shaft, and the second circlip is disposed in the second annular groove. And the second circlip stop limits the eccentric sleeve within the first shaft hole outside the eccentric sleeve.

The eccentric sleeve is provided with a circlip pliers avoiding groove near the end surface of the second circlip.

The limiting mechanism includes a positioning bead, a fixing seat, an elastic member and an adjusting pin, and the fixing seat is fixed at An outer wall of the sleeve is adjacent to the indexing plate, and an end surface of the fixing seat adjacent to the sleeve is a bottom end, and a bottom of the fixing seat is provided with a mounting groove, and the bottom wall of the mounting groove is Providing a first through hole penetrating to a top end of the fixing seat, the mounting groove is provided with a second through hole near the side wall of the indexing plate, the adjusting pin is disposed in the mounting groove, and the top end of the adjusting pin is extended The first through hole is disposed, the elastic member is located between the outer wall of the sleeve and the bottom end of the adjusting pin, and when the adjusting pin is pressed, the positioning bead enters the mounting slot from the second through hole When the adjusting pin is loosened, the positioning bead portion is caught in the positioning hole of the indexing plate.

The adjustment pin includes a first pin segment, a second pin segment and a third pin segment which are sequentially connected, the first pin segment protrudes from the first through hole, and the third pin segment is pressed against the elastic member Upper, the diameter of the second pin segment is gradually increased from the first pin segment to the third pin segment.

The indexing disc is further provided with a first weight and a second weight for maintaining the rotation balance of the auxiliary mechanism of the polishing and polishing machine.

The auxiliary mechanism of the grinding and polishing machine further includes a transition joint and a third retaining spring, wherein the indexing disc is provided with a connecting hole, and the rotating shaft is connected to one end of the transition joint through the connecting hole, and the transition The other end of the connector is connected to the main body of the polishing machine, and the outer wall of the rotating shaft near the end of the transition joint is provided with a third annular groove, the third spring is disposed in the third annular groove, and the third card The spring block is outside the indexing plate.

a groove is formed on the end surface of the indexing plate adjacent to the third circlip, and the connecting hole is disposed in the groove, and the inner wall of the groove is provided with two limit positions along the circumferential direction thereof The two ends of the third circlip are located between the two limiting stages.

The adjustment hole includes an inner hole and an outer hole, the inner hole is closer to the rotating shaft than the outer hole, and the inner and outer holes have a larger diameter than the limit pin, and the inner hole and the outer hole pass the circular arc Transitional connectivity.

An abrasive polishing machine comprising a polishing machine body, a polishing wheel and an auxiliary mechanism of the polishing and polishing machine, the polishing machine body being coupled to the rotating shaft, the polishing wheel being coupled to the eccentric assembly.

The advantages or principles of the foregoing technical solutions are described below:

The above-mentioned grinding and polishing machine and its auxiliary mechanism use the main body of the polishing machine to rotate the rotating shaft and the sleeve. Since the eccentric component is located in the first shaft hole, the first shaft hole is not concentric with the rotating shaft, and the eccentric component passes through the limiting column. The limit is in the adjustment hole of the indexing plate, and the indexing plate is connected with the sleeve through the limiting mechanism, so the indexing plate and the eccentric component rotate accordingly, so as to drive the polishing wheel connected with the eccentric component to perform eccentric rotation motion, when When it is necessary to adjust the radius of curvature of the polishing wheel, the limiting mechanism is released to rotate the sleeve relative to the indexing plate, and the eccentric component can only move in the adjusting hole of the indexing plate with the limiting column, so that the eccentric component and the rotating shaft are The eccentricity is changed to achieve the purpose of adjusting the radius of curvature of the polishing wheel, thereby changing the running track of the polishing wheel, thereby achieving different polishing effects. Compared with the traditional grinding and polishing machine, it is directly connected with the polishing wheel. Due to the rigid connection, the polishing wheel can only make a single rotation motion according to the regular trajectory. The polishing line is relatively thick, and the polishing surface is easy to produce the aperture, making the polished surface look uneven. Smooth, very unattractive, and the work efficiency is not high; the grinding and polishing machine and its auxiliary mechanism can be freely changed within twice the distance between the rotating shaft and the polishing wheel, greatly improving the grinding force, improving work efficiency and reducing labor Intensity, when the polishing wheel rotates excessively, the swing amplitude can be reduced, the aperture can be eliminated, polishing marks are not easily left, and the polishing effect is effectively improved.

DRAWINGS

1 is an exploded perspective view 1 of the auxiliary mechanism of the polishing and polishing machine according to the embodiment;

2 is a schematic view of the assembly of the auxiliary mechanism of the polishing and polishing machine according to the embodiment;

3 is an exploded perspective view 2 of the auxiliary mechanism of the polishing and polishing machine according to the embodiment;

4 is an exploded perspective view 3 of the auxiliary mechanism of the polishing and polishing machine according to the embodiment;

Figure 5 is a schematic view of the eccentric assembly of the embodiment;

Figure 6 is a second schematic view of the assembly of the auxiliary mechanism of the polishing and polishing machine according to the embodiment;

Figure 7 is a schematic cross-sectional view showing the auxiliary mechanism of the polishing and polishing machine of the embodiment;

8 is a schematic plan view of the auxiliary mechanism of the polishing and polishing machine according to the embodiment;

Figure 9 is a perspective view of the sleeve in the first position according to the embodiment;

Figure 10 is a perspective view of the sleeve of the present embodiment in a second position.

Description of the reference signs:

10, indexing plate, 110, adjusting hole, 112, inner hole, 114, outer hole, 120, positioning hole, 130, groove, 132, limit table, 140, connecting hole, 20, bushing, 210, shaft , 212, the third annular groove, 220, first shaft hole, 222, second annular groove, 230, curved hole, 30, eccentric assembly, 310, limit column, 320, eccentric adjustment piece, 321, perforation, 322, first tapered groove, 323 , first tapered boss, 324, first mounting hole, 325, receiving groove, 326, fixing hole, 330, eccentric sleeve, 332, shaft seal, 334, circlip pliers avoiding groove, 340, spring, 350, clutch Adjustment block, 351, second tapered groove, 352, second mounting hole, 360, connecting shaft, 361, first shaft section, 362, second shaft section, 3622, first annular groove, 363, third axial section 370, bearing, 380, first circlip, 390, cotter pin, 40, limit mechanism, 410, positioning bead, 420, fixing seat, 422, mounting groove, 424, first through hole, 426, second pass Hole, 430, elastic member, 440, adjusting pin, 441, positioning groove, 442, first pin segment, 444, second pin segment, 446, third pin segment, 50, second circlip, 60, first match Heavy block, 70, second weight, 80, transition joint, 90, third circlip.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are given in the drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be more fully understood.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or the element can be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right", and the like, as used herein, are for the purpose of illustration and are not intended to be the only embodiment.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

As shown in FIGS. 1-3 and 6, an auxiliary mechanism of the polishing and polishing machine includes an indexing plate 10, a sleeve 20 and an eccentric assembly 30. One end of the sleeve 20 is provided with a rotating shaft 210, and the other end is provided with a first end. a shaft hole 220, The center of the first shaft hole 220 is different from the center of the rotating shaft 210. The rotating shaft 210 is rotatably connected to the indexing plate 10. One end of the eccentric assembly 30 is provided with a limiting post 310, and the other end is used for the other end. The arcing hole 230 is disposed on the end surface of the sleeve 20 near the indexing plate 10. The indexing plate 10 is provided with an adjusting hole 110, and the eccentric component 30 is disposed on the first axis. In the hole 220, the limiting post 310 is sequentially disposed in the arc hole 230 and the adjusting hole 110. The indexing plate 10 is provided with a plurality of positioning holes 120, and the sleeve 20 passes the limit. The mechanism 40 cooperates with one of the positioning holes 120 to be positioned on the indexing plate 10.

In use, the main body of the polishing machine drives the rotating shaft 210 and the sleeve 20 to rotate. Since the eccentric assembly is located in the first shaft hole 220, the first shaft hole 220 is not concentric with the rotating shaft 210, and the eccentric assembly is limited to the indexing plate by the limiting column 310. The adjusting hole 110 of the 10 is disposed, and the indexing plate 10 is connected to the sleeve 20 through the limiting mechanism 40, so that the indexing plate 10 and the eccentric component rotate together, so that the polishing wheel connected to the eccentric component can be driven to perform eccentric rotating motion. When it is necessary to adjust the radius of curvature of the polishing wheel, the limiting mechanism 40 is released to rotate the sleeve 20 relative to the indexing plate 10. As shown in FIG. 8-10, the eccentric assembly 30 can only be on the indexing plate 10 with the limiting post 310. The adjustment hole 110 moves to change the eccentricity between the eccentric assembly 30 and the rotating shaft 210, thereby achieving the purpose of adjusting the rotational radius of curvature of the polishing wheel, thereby changing the running track of the polishing wheel, thereby achieving different polishing effects. Compared with the traditional grinding and polishing machine, it is directly connected with the polishing wheel. Due to the rigid connection, the polishing wheel can only make a single rotation motion according to the regular trajectory. The polishing line is relatively thick, and the polishing surface is easy to produce the aperture, making the polished surface look uneven. Smooth, very unattractive, and the work efficiency is not high; the grinding and polishing machine and its auxiliary mechanism can be freely changed within two times of the center distance between the rotating shaft 210 and the polishing wheel, greatly improving the grinding force, improving work efficiency, and reducing the worker. Labor intensity, when the polishing wheel rotates excessively, the swing amplitude can be reduced, the aperture can be eliminated, polishing marks are not easily left, and the polishing effect is effectively improved.

Further, as shown in FIG. 3, FIG. 4 and FIG. 5, the eccentric component 30 includes an eccentric adjustment piece 320, an eccentric sleeve 330, a spring 340, a clutch adjustment block 350, and a connecting shaft 360. The eccentricity adjusting piece 320 is provided with a through hole 321 The eccentric sleeve 310 is disposed on the eccentric sleeve 330. The clutch adjustment block 350 is fixedly connected to the first end of the connecting shaft 360, and the eccentric sleeve 330 is sleeved on the clutch adjustment block 350. The limiting post 310 is sequentially disposed in the through hole 321 , the curved hole 230 and the adjusting hole 110 . One end of the spring 340 abuts against the sleeve 20 and the other end abuts against the eccentric adjustment piece 320, so that the eccentric adjustment piece 320 is pressed against the clutch adjustment block 350 when the clutch adjustment block 350 is received. When the resistance is greater than the rated resistance, the clutch adjustment block 350 rotates relative to the eccentric adjustment piece 320. The eccentric adjusting piece 320 is pressed against the clutch adjusting block 350 by the spring 340 to form a clutch structure, and the spring 340 is over-adjusted to adapt to more complicated curved surface work. When the polishing wheel encounters large resistance during polishing and grinding, the clutch is engaged. The adjustment block 350 is slid, and the clutch adjustment block 350 is rotated relative to the eccentric adjustment piece 320320 to prevent the force on the polishing wheel from being too large to cause a deep polishing flaw on the polishing surface. Of course, in order to save cost, the eccentric component 30 may not be provided with a clutch structure according to actual needs, and the eccentric adjusting piece 320 is directly connected to the connecting shaft 360, and the axial line connecting the shaft 360 and the center line of the eccentric adjusting piece 320 are different axes.

Optionally, in order to apply a grinding force to the polishing wheel, the side of the tray and the polishing wheel can be prevented from sliding, and the connection of the eccentric moment can be conveyed, and the clutch structure can be increased, which can double (direction) rotation and The base of the polishing wheel can be rotated strongly, and the grinding force close to the unidirectional rotation can be realized more irregularly and complicatedly. With the addition of this mechanism, it is only necessary to replace the special polishing wheel from grinding to polishing.

Further, as shown in FIG. 3, FIG. 5, the eccentric assembly 30 further includes a bearing 370, the bearing 370 is sleeved on the connecting shaft 360, and the connecting shaft 360 is provided with a first circlip 380. The first circlip 380 is located between the bearing 370 and the clutch adjustment block 350. The eccentric sleeve 330 is disposed on the bearing 370 and the clutch adjustment block 350. By providing the bearing 370, the clutch adjustment block 350 and the connecting shaft 360 are rotated more smoothly with respect to the eccentric adjustment piece 320 and the eccentric sleeve 330, and the first circlip spring 380 is disposed between the bearing 370 and the clutch adjustment block 350 to restrict the clutch. The axial degrees of freedom of the block 350 and the bearing 370 are adjusted so that the two processes do not interfere with each other.

As shown in FIG. 4 and FIG. 5, the eccentricity adjusting piece 320 of the embodiment is provided with a first tapered groove 322 facing the end surface of the clutch adjusting block 350, and the first tapered groove 322 is provided with a first tapered convex portion. The 323, the clutch adjustment block 350 has a tapered shape matching the first tapered groove 322 toward the end surface of the eccentric adjustment piece 320, and the clutch adjustment block 350 is disposed on the end surface of the eccentric adjustment piece 320. A tapered boss 323 matches the second tapered groove 351. In this way, the eccentric adjusting piece 320 and the clutch adjusting block 350 can be linked under the pressing force of the spring 340 under normal conditions, and the connection is more reliable, which can meet the requirements of polishing and grinding. Seeking, can effectively avoid excessive polishing and grinding.

As shown in FIGS. 4 and 5, the connecting shaft 360 includes a first shaft segment 361, a second shaft segment 362 and a third shaft segment 363 which are sequentially connected. The diameter of the first shaft segment 361 is smaller than the second shaft segment 362. The diameter of the second shaft section 362 is smaller than the diameter of the third shaft section 363, and the first tapered boss 323 is provided with a first mounting hole 324 matching the first shaft section 361, the first The second tapered slot 351 is provided with a second mounting hole 352 matched with the second shaft section 362. The second axial section 362 is provided with a first annular groove 3622 in the middle, and the first retaining spring 380 is disposed in the ring. In the slot, the bearing 370 is sleeved on the second shaft section 362 and located between the third shaft section 363 and the first circlip spring 380. The clutch adjustment block 350 is sleeved on the second shaft section 362 and located at the Between a shaft section 361 and the first circlip 380, and the clutch adjustment block 350 is fixed to the second shaft section 362 by a split pin 390, the first shaft section 361 extending into the first mounting hole 324 . The connecting shaft 360 is set as three shaft segments having different diameters, and the positioning and positioning are performed by the joints of the different shaft segments, the bearing 370 is limited by the third shaft segment 363, and the first shaft segment 361 extends into the first mounting hole. The depth of 324 is limited by the end face of the second shaft section 362, so that assembly of each part can be realized quickly and accurately, and assembly efficiency and accuracy are improved. In this embodiment, the clutch adjustment block 350 is fixed on the second shaft section 362 by the split pin 390, so that the relative rotation between the clutch adjustment block 350 and the connecting shaft 360 cannot be performed. By adjusting the opening degree of the split pin 390, both can be used. The degree of tightness of the connection is adaptively adjusted, and the use is more convenient; of course, according to actual needs, the clutch adjustment block 350 and the connecting shaft 360 can be fixedly connected by other means, such as using a key or a positioning pin.

As shown in FIG. 4 and FIG. 5, the eccentricity adjusting piece 320 is provided with a receiving groove 325 on the end surface of the clutch adjusting block 350. The receiving groove 325 is provided with a fixing hole 326. The spring 340 is a conical spring. The large end of the conical spring is adjacent to the eccentric tab 320, and the end of the large end of the conical spring is engaged in the fixing hole 326. By arranging the receiving groove 325 and the fixing hole 326, the spring 340 can be restrained, and a conical spring is disposed at the same time, so that the thickness of the spring 340 in the compressed state is as thin as possible, and the inner space height of the first shaft hole 220 is effectively saved. The entire organization is more compact and the performance is more stable.

As shown in FIG. 3 and FIG. 7 , one end of the eccentric sleeve 330 away from the eccentric adjustment piece 320 is provided with a shaft seal 332 , and the third shaft section 363 extends through the shaft seal 332 to extend out the eccentric sleeve 330 , and A threaded hole is formed in an end surface of the connecting shaft 360 away from the eccentric adjusting piece 320. By setting the shaft seal 332 to the inside of the eccentric sleeve 330 The inner part is protected from dust and the like, and the threaded hole in the embodiment is an internally threaded hole for connecting the polishing wheel.

As shown in FIG. 3 and FIG. 7 , the auxiliary mechanism of the polishing and polishing machine further includes a second circlip 50, and a second annular groove 222 is disposed at an end of the first shaft hole 220 away from the rotating shaft 210, and the second The circlip 50 is disposed in the second annular groove 222, and the second circlip 50 is blocked from the eccentric sleeve 330 to limit the eccentric sleeve 330 in the first shaft hole 220. The eccentric assembly 30 is restrained in the sleeve 20 by the second circlip spring 50, so that the eccentric assembly 30 and the sleeve 20 can be rotated relative to each other without axial movement. Of course, the connection manner is not limited to The second circlip 50 is limited in position, and the eccentric component 30 can be restrained in the sleeve 20 by using an end cover such as a hole. As shown in FIG. 1 and FIG. 3, the eccentric sleeve 330 is further provided with a circlip forceps escaping groove 334 near the end surface of the second circlip spring 50. When the eccentric sleeve 330 is assembled, the eccentric sleeve 330 is prevented from being scratched, which affects the appearance of the product.

As shown in FIGS. 3, 4, and 7, the limiting mechanism 40 includes a positioning bead 410, a fixing base 420, an elastic member 430, and an adjusting pin 440. The fixing base 420 is fixed on the outer wall of the sleeve 20 and adjacent to In the indexing plate 10, the end surface of the fixing base 420 near the sleeve 20 is a bottom end, and the bottom end of the fixing base 420 is provided with a mounting groove 422, and the bottom wall of the mounting groove 422 is provided with a through hole. a first through hole 424 to the top of the fixing base 420. The mounting groove 422 is disposed on the side wall of the indexing plate 10 and is provided with a second through hole 426. The adjusting pin 440 is disposed in the mounting groove 422 and is adjusted. The top end of the pin 440 protrudes from the first through hole 424, and the elastic member 430 is located between the outer wall of the sleeve 20 and the bottom end of the adjusting pin 440. When the adjusting pin 440 is pressed, the positioning bead 410 The positioning hole 426 is partially inserted into the positioning hole 120 of the indexing plate 10 when the adjusting pin 440 is released. The fixing seat 420 is provided with a bump on both sides of the fixing base 420. The screw passes through the protrusion to lock the fixing base 420 outside the sleeve 20, and the outer wall of the sleeve 20 contacting the fixing seat 420 is a plane, and the plane is A threaded hole matching the screw is provided, and a groove matching the bottom end of the adjusting pin 440 is further disposed on the plane, and the bottom wall of the groove is provided with a blind hole matched with the elastic member 430 for adjusting the pin The 440 and the elastic member 430 are positioned.

When it is necessary to adjust the radius of curvature of the polishing wheel, the top end of the adjusting pin 440 is pressed. Since the elastic member 430 is disposed between the adjusting pin 440 and the outer wall of the sleeve 20, the elastic member 430 is compressed during pressing. The integral pin 440 moves along its axial direction to change its contact position with the positioning post, thereby allowing the positioning space to enter the mounting post 422, releasing the connection restriction between the sleeve 20 and the indexing plate 10, and making the shaft The sleeve 20 can be rotated relative to the indexing disc 10. When the sleeve 20 is rotated into position, the adjusting pin 440 is released, and the adjusting pin 440 is automatically returned by the elastic member 430, and the positioning bead 410 is synchronously pushed during the returning process, so that the positioning bead 410 is synchronously pushed. A portion of the positioning bead 410 enters the positioning hole 120 of the current position, so that the sleeve 20 is caught by the positioning post on the indexing plate 10, so that the sleeve 20 cannot rotate relative to the indexing plate 10. The locking structure is locked and released, which is convenient and quick to operate, and has high efficiency. According to actual needs, the limiting mechanism 40 of other structures can also be used to switch both the sleeve 20 and the indexing disc 10 in a state of relative rotation and non-relative rotation, such as a projection on the sleeve 20. A protruding hole corresponding to the positioning hole 120 is disposed on the protruding portion. When the relative rotation is not required, the locking pin is caught in the locking hole and the positioning hole 120. When relative rotation is required, the locking pin can be pulled out.

As shown in FIG. 3 and FIG. 7 , in the embodiment, the elastic member 430 is a telescopic spring, and other components capable of realizing the rebound function can be selected according to actual needs. The bottom end of the adjusting pin 440 is provided with a positioning slot 441. The elastic member 430 extends into the positioning slot 441 and abuts against the bottom wall of the positioning slot 441. The elastic member 430 is guided while being positioned in the groove.

As shown in FIG. 7, the adjustment pin 440 of the embodiment includes a first pin segment 442, a second pin segment 444 and a third pin segment 446 which are sequentially connected, and the first pin segment 442 extends the first pass. The hole 424 is pressed against the elastic member 430, and the diameter of the second pin segment 444 is gradually increased from the first pin segment 442 to the third pin segment 446. The second pin segment 444 has a small tapered shape with a large end and a bottom end. When the first pin segment 442 is not pressed, the large end of the second pin segment 444 abuts the positioning bead 410 to be pushed into the positioning hole 120, and presses the first pin. The segment 442, the second pin segment 444 is moved downward, and the receiving space is gradually released, and the positioning bead 410 is disengaged from the positioning hole 120 into the receiving groove 325. According to requirements, the adjustment pin 440 can also adopt a convex hull structure in which a circular arc transition is arranged in the middle, and the positioning bead 410 is pressed by the convex hull.

Further, as shown in FIGS. 3 and 4, the indexing disk 10 is further provided with a first weight 60 and a second weight 70 for maintaining the rotational balance of the auxiliary mechanism of the polishing and polishing machine. In order to avoid the instability of the overall mechanism rotation, the center of gravity of the mechanism is adjusted by adding the first weight 60 and the second weight 70 to balance the rotation process of the mechanism. The positions at which the first weight 60 and the second weight 70 are disposed are related to the center of gravity of the eccentric assembly 30.

Further, as shown in FIGS. 3, 4, 6, and 7, the auxiliary mechanism of the polishing and polishing machine further includes a transition joint 80 and a third retaining spring 90, and the indexing disc 10 is provided with a connecting hole 140. The rotating shaft 210 is connected to one end of the transition joint 80 through the connecting hole 140. The other end of the transition joint 80 is connected to the main body of the polishing machine. The rotating shaft 210 is adjacent to the outer wall of one end of the transition joint 80. The third ring groove 212 is disposed in the third annular groove 212, and the third card spring 90 is blocked outside the indexing plate 10. The transition joint 80 is a structure with a threaded intermediate hexagonal disc at the middle ends, one end is used for screwing with the rotating shaft 210, the other end is for connecting with the polishing machine main body, and the indexing disc 10 is restricted by the third retaining spring 90. The axial movement makes the indexing plate 10 and the sleeve 20 close to each other and can only rotate relative to each other. As shown in FIGS. 6 and 8, a groove 130 is formed in the end surface of the indexing disk 10 adjacent to the third circlip 90, and the connecting hole 140 is disposed in the groove 130. Two limiting stations 132 are disposed on the inner wall along the circumferential direction thereof, and the two ends of the third card spring 90 are located between the two limiting stations 132. The rotation range of the third circlip spring 90 is restricted by the limit table 132, and the friction with the indexing disk 10 is reduced.

As shown in FIG. 8-10, the adjustment hole 110 includes an inner hole 112 and an outer hole 114. The inner hole 112 is closer to the rotating shaft 210 than the outer hole 114, and the inner hole 112 and the outer hole 114 have larger diameters. The diameter of the limiting pin, the inner hole 112 and the outer hole 114 are in transient communication. The adjusting hole 110 has to satisfy the limitation of the limiting pin, and the adjusting hole 110 cannot interfere with the limiting pin when the sleeve 20 rotates to change the eccentricity with respect to the indexing plate 10.

An abrasive polishing machine comprising a polishing machine body, a polishing wheel and an auxiliary mechanism of the polishing and polishing machine, the polishing machine body being coupled to the rotating shaft 210, and the polishing wheel being coupled to the eccentric assembly 30. The polishing wheel of the conventional polishing machine has a circular rotation, which is easy to form a circular polishing mark. The grinding and polishing machine adopts the auxiliary mechanism, the running track is irregular, and the polishing is brighter, and it is not easy to leave polishing. trace. The clutch adjustment block 350 can rotate relative to the eccentric adjustment piece 320. When the polishing wheel encounters a large resistance, the clutch slips, so that the clutch adjustment block 350 can be relatively eccentrically adjusted to the sheet 320, thereby avoiding excessive force on the polishing wheel and causing the polishing surface to appear. Deep polishing scars. The control limiting mechanism 40 can change the eccentric distance by changing the position of the sleeve 20, thereby changing the running trajectory of the polishing wheel, thereby achieving different polishing effects.

The technical features of the above-mentioned embodiments may be combined in any combination, so that the description is concise, not All possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope of the present specification.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

An auxiliary mechanism for an abrasive polishing machine, comprising: an indexing plate, a sleeve and an eccentric component, wherein the sleeve has one end of a rotating shaft and the other end is provided with a first shaft hole, and the first shaft hole The center is different from the center of the rotating shaft, and the rotating shaft is rotatably connected to the indexing plate. The eccentric component is provided with a limiting post at one end and a polishing wheel connected to the other end. An arcuate hole is disposed on the end surface, the indexing plate is provided with an adjusting hole, the eccentric component is disposed in the first shaft hole, and the limiting post is sequentially disposed in the arc hole and In the adjusting hole, the indexing plate is provided with a plurality of positioning holes, and the sleeve is engaged with the positioning hole on the indexing plate by a limiting mechanism.
The auxiliary mechanism of the polishing and polishing machine according to claim 1, wherein the eccentric assembly comprises an eccentric adjusting piece, an eccentric sleeve, a spring, a clutch adjusting block and a connecting shaft, and the eccentric adjusting piece is provided with a through hole, a limiting post is disposed on the eccentric sleeve, the clutch adjusting block is fixedly connected to the first end of the connecting shaft, the eccentric sleeve is disposed on the clutch adjusting block, and the limiting post is sequentially disposed in the In the perforation, the arcuate hole and the adjustment hole, one end of the spring abuts against the sleeve, and the other end abuts against the eccentric adjustment piece, so that the eccentric adjustment piece is pressed against the clutch adjustment block, when When the resistance of the clutch adjustment block is greater than the rated resistance, the clutch adjustment block rotates relative to the eccentric adjustment piece.
The auxiliary mechanism of the polishing and polishing machine according to claim 2, wherein the eccentric assembly further comprises a bearing, the bearing is sleeved on the connecting shaft, and the connecting shaft is provided with a first circlip, And the first circlip is located between the bearing and the clutch adjustment block, and the eccentric sleeve is disposed on the bearing and the clutch adjustment block.
The auxiliary mechanism of the polishing and polishing machine according to claim 3, wherein the eccentric adjusting piece is provided with a first tapered groove on an end surface of the clutch adjusting block, and the first tapered groove is provided with a first a tapered boss, the clutch adjustment block has a tapered shape matching the first tapered groove toward the end surface of the eccentric adjusting piece, and the clutch adjusting block is disposed on the end surface of the eccentric adjusting piece and the first tapered portion The second tapered groove matched by the boss.
The auxiliary mechanism of the polishing and polishing machine according to claim 4, wherein the connecting shaft comprises a first shaft section, a second shaft section and a third shaft section which are sequentially connected, and the diameter of the first shaft section is smaller than a diameter of the second shaft segment, the diameter of the second shaft segment being smaller than the diameter of the third shaft segment, the first tapered boss a first mounting hole matched with the first shaft segment, a second mounting hole matched with the second shaft segment, and a first ring in the middle of the second shaft segment a groove, the first circlip is disposed in the annular groove, the bearing is sleeved on the second shaft segment and is located between the third shaft segment and the first circlip, and the clutch adjustment block is sleeved a second shaft section is located between the first shaft section and the first circlip, and the clutch adjustment block is fixed on the second shaft section by a split pin, the first shaft section extends into the first mounting hole .
The auxiliary mechanism of the polishing and polishing machine according to claim 4, wherein the eccentricity adjusting piece is provided with a receiving groove on an end surface of the clutch adjusting block, and the fixing groove is provided with a fixing hole, and the spring is a cone And a large end of the conical spring is adjacent to the eccentric adjusting piece, and an end of the large end of the conical spring is engaged in the fixing hole.
The auxiliary mechanism of the polishing and polishing machine according to claim 5, wherein one end of the eccentric sleeve away from the eccentric tab is provided with a shaft seal, and the third shaft segment protrudes through the shaft seal The eccentric sleeve is provided with a threaded hole on the end surface of the connecting shaft away from the eccentric adjusting piece.
The auxiliary mechanism of the polishing and polishing machine according to claim 2, further comprising a second retaining spring, wherein a second annular groove is disposed at an end of the first shaft hole away from the rotating shaft, and the second retaining spring The second circlip groove is disposed in the second annular groove, and the second circlip is blocked outside the eccentric sleeve to limit the eccentric sleeve in the first shaft hole.
The auxiliary mechanism of the polishing and polishing machine according to claim 8, wherein the eccentric sleeve is provided with a circlip forceps avoiding groove near the end surface of the second circlip.
The auxiliary mechanism of the polishing and polishing machine according to claim 1, wherein the limiting mechanism comprises a positioning bead, a fixing seat, an elastic member and an adjusting pin, wherein the fixing seat is fixed on an outer wall of the sleeve and Adjacent to the indexing plate, an end surface of the fixing seat adjacent to the sleeve is a bottom end, a bottom of the fixing seat is dug with a mounting groove, and a bottom wall of the mounting groove is provided with a bottom end extending to the top of the fixing seat. a first through hole, a second through hole is disposed on the side wall of the mounting groove near the indexing plate, the adjusting pin is disposed in the mounting groove, and a top end of the adjusting pin protrudes from the first through hole, The elastic member is located between the outer wall of the sleeve and the bottom end of the adjusting pin. When the adjusting pin is pressed, the positioning bead enters the mounting slot from the second through hole when the adjusting pin is released. The positioning bead portion is caught in the positioning hole of the indexing plate.
An auxiliary mechanism for an abrasive polishing machine according to claim 10, wherein said adjustment The integral pin includes a first pin segment, a second pin segment and a third pin segment that are sequentially connected, the first pin segment protruding from the first through hole, and the third pin segment pressing on the elastic member The diameter of the second pin segment is gradually increased from the first pin segment to the third pin segment.
The auxiliary mechanism of the polishing and polishing machine according to any one of claims 1 to 11, wherein the indexing plate is further provided with a first weight for maintaining a rotational balance of the auxiliary mechanism of the polishing machine and The second weight.
The auxiliary mechanism of the polishing and polishing machine according to any one of claims 1 to 11, further comprising a transition joint and a third retaining spring, wherein the indexing disc is provided with a connecting hole, and the rotating shaft is worn The connecting hole is connected to one end of the transition connector, and the other end of the transition connector is connected to the main body of the polishing machine, and the outer wall of the rotating shaft near the end of the transition connector is provided with a third annular groove, the third card A spring is disposed in the third annular groove, and the third retaining spring is blocked outside the indexing plate.
The auxiliary mechanism of the polishing and polishing machine according to claim 13, wherein the indexing plate is provided with a groove near the end surface of the third circlip, and the connecting hole is disposed in the groove. Two inner limiting blocks are arranged on the inner wall of the groove along the circumferential direction thereof, and the two ends of the third circlip are located between the two limiting stages.
The auxiliary mechanism of the polishing and polishing machine according to any one of claims 1 to 11, wherein the adjustment hole comprises an inner hole and an outer hole, the inner hole is closer to the rotating shaft than the outer hole, and the inner hole And the outer diameter of the outer hole is larger than the diameter of the limit pin, and the inner hole and the outer hole are connected to each other through a circular arc.
An abrasive polishing machine comprising: a polishing machine body, a polishing wheel, and an auxiliary mechanism of the polishing and polishing machine according to any one of claims 1 to 15, the polishing machine body being coupled to the rotating shaft, the polishing A wheel is coupled to the eccentric assembly.