Polishing device for mechanical sealing element manufacturing and machining

Abstract

The invention relates to the technical field of polishing equipment, and discloses a polishing device for mechanical sealing element manufacturing and machining, the polishing device comprises a rotating disc, the rotating disc comprises a main disc body, a clamping sleeve and a locking ring, the clamping sleeve comprises a mounting sleeve and a banding belt, the main disc body comprises a rotating disc, a mounting hole corresponding to the mounting sleeve is formed in the rotating disc, and the locking ring is arranged in the clamping sleeve. One end of the banding belt is fixed to the mounting sleeve through a mounting pin, and the other end of the banding belt is wound around the inner wall of the mounting sleeve by a circle and then penetrates through the mounting sleeve to be connected with a pull rope. According to the polishing device for manufacturing and machining the mechanical sealing element, the workpieces are hooped through the hooping belt, so that the rotating disc and the workpieces form a complete entity, the workpieces can be integrally taken down when taken down, meanwhile, the operation of placing and fixing the workpieces is more convenient, relative displacement between the rotating disc and the workpieces is avoided, and the polishing efficiency is improved. And workpiece side wall damage is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of polishing equipment, and particularly relates to a polishing device for manufacturing and processing mechanical seals. Background Art

[0002] Polishing is a key process in seal manufacturing, which is directly related to the reliability, efficiency, and service life of the sealing system.

[0003] Rotary polishing devices are commonly used polishing equipment, which generally have a rotatable grinding disc and a turntable for placing mechanical seals. During operation, the grinding disc rotates, and the relative rotational movement between the grinding disc and the mechanical seal realizes the polishing of the seal surface. At the same time, the turntable rotates to change the distance between each mechanical seal and each position of the mechanical seal relative to the center of the grinding disc, so as to make the grinding uniform.

[0004] When polishing small-sized mechanical seals, to ensure the polishing efficiency, multiple seals are usually fixed on the fixture. After polishing, it is rather cumbersome to remove these small-sized mechanical seals one by one. Sometimes, due to the reduction of the surface roughness of the mechanical seal, suction force is generated between the mechanical seal and the grinding disc, making it even more difficult to remove these small-sized mechanical seals.

[0005] Secondly, since the turntable usually fixes the mechanical seal simply through a round hole, there is relative movement between the round hole and the mechanical seal during polishing, which may damage the side wall of the mechanical seal. Summary of the Invention

[0006] The present application provides a polishing device for manufacturing and processing mechanical seals. By using a tightening band to tighten the workpiece, the rotating disc and each workpiece form a complete entity, which can not only avoid damaging the side wall of the workpiece but also facilitate the removal of the workpiece.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a polishing device for manufacturing and processing mechanical seals, comprising a polishing table, a polishing disk is provided on the polishing table, a driving wheel is provided at the center of the polishing table, a rotating disk is placed on the polishing disk, the driving wheel and the rotating disk are meshed, and the side wall of the polishing table is meshed with the rotating disk, the rotating disk comprises a main disk body, a jacket and a locking ring, the jacket comprises a mounting sleeve and a tightening band, the main disk body comprises a rotating disk, a mounting hole corresponding to the mounting sleeve is provided on the rotating disk, one end of the tightening band is fixed to the mounting sleeve by a mounting pin, the other end of the tightening band is passed through the mounting sleeve after being wrapped around the inner wall of the mounting sleeve and is connected to a pull rope, the end of the pull rope is connected to a driving block, the locking ring comprises a rotating ring, the rotating ring is detachably connected to the rotating disk, the rotating ring is provided with a driving hole corresponding to the driving block, when the rotating ring rotates, each driving block is pulled, so that the tightening band clamps the workpiece, and the rotating ring is provided with a locking member, the locking member is configured to lock the rotating disk and the rotating ring so that the two cannot rotate relative to each other.

[0008] Furthermore, in order to ensure that the tightening belt can be smoothly reset after being loosened and keep the circular hole in the largest state to facilitate the placement of the workpiece, the tightening belt is composed of a spring and a rubber pad, and the spring is located on the outer ring.

[0009] Furthermore, in order to ensure that each tightening belt is tightened to the same degree, the rotating disk is provided with a movable groove for accommodating the tightening belt and for the end of the tightening belt to move, and the rotating disk is provided with a driving groove. The movable groove and the through groove both point to the center of the rotating disk. The movable groove is connected to the driving groove, and the driving block slides in the driving groove.

[0010] Furthermore, the driving groove is provided with a positioning protrusion at a position corresponding to each driving block, and the pull rope is provided with a section of elastic rope, and both ends of the elastic rope are fixedly connected to the pull rope.

[0011] Furthermore, a buffer pad is provided at a position of the mounting sleeve corresponding to the mounting pin. The buffer pad is elastic and directly reduces the friction between the mounting sleeve and the workpiece. At the same time, the buffering capacity of the buffer pad can make each tightening belt be tightened to the same degree.

[0012] Furthermore, it also includes a pre-placement disk, which includes a placement disk, and the placement disk is provided with two groups of limiting teeth. The bottom of the placement disk is provided with a placement groove, and the placement groove corresponds to the jacket one by one. A driving ring is installed at the bottom of the placement disk, and the driving ring can rotate. The driving ring is provided with a driving column, and the locking ring is provided with a driven hole corresponding to the driving column, and the driving column can be inserted into the driven hole.

[0013] Further, the locking member is a limit block, which is installed on the rotating ring. Dense card slots and card teeth are respectively provided on the opposite faces of the locking member and the rotating disk. A permanent magnet is provided inside the locking member, and the card teeth on the end face of the locking member are stuck on the card slots of the rotating disk by the permanent magnet. A pre-locking member is provided at the position of the placing disk corresponding to the locking member. The pre-locking member consists of a placing groove corresponding to the locking member and a locking magnet under the placing groove. The locking magnet can adjust the magnetic force on the locking member to suck or release the locking member.

[0014] Further, the bottom of the placing groove is lower than the bottom of the driving ring.

[0015] The beneficial effects of the present invention are as follows:

[0016] A polishing device for manufacturing and processing mechanical seals provided by the present application uses a tightening belt to tighten the workpiece, so that the rotating disk and each workpiece form a complete entity, and the workpiece can be taken off as a whole when the workpiece is removed. At the same time, since the rotating disk is relatively large in volume and a part of it is located outside the polishing disk, it is easier to apply force when the workpiece sucks the polishing disk.

[0017] By rotating the locking ring to pull the driving block, and then tightening the tightening belt to hoop the workpiece. On the one hand, the operation of fixing the workpiece is more convenient. On the other hand, there is no relative displacement between the rotating disk and the workpiece, and there is no friction between them, which can protect the side wall of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts:

[0019] Figure 1 It is a partial half-sectional view of the rotating disk in the present invention;

[0020] Figure 2 It is a top view of the present invention;

[0021] Figure 3 It is a schematic diagram of the rotating disk in the present invention;

[0022] Figure 4 It is a schematic diagram of the jacket in the present invention;

[0023] Figure 5 In the present invention Figure 1 An enlarged view of A;

[0024] Figure 6 It is a partial schematic diagram of the pull rope in the present invention;

[0025] Figure 7 Schematic diagram of the pre-placement disk in the present invention.

[0026] In the figure: 1, polishing table; 2, driving wheel; 3, rotating disk; 31, main disk body; 311, rotating disk; 312, mounting hole; 313, movable groove; 314, driving groove; 315, driving block; 316, positioning protrusion; 32, jacket; 321, mounting sleeve; 322, tightening band; 323, mounting pin; 324, through groove; 325, pulling rope; 326, buffer pad; 327, elastic cord; 33, locking ring; 331, rotating ring; 332, driving hole; 333, locking member; 334, driven hole; 4, polishing disk; 5, workpiece; 6, pre-placement disk; 61, placement disk; 62, driving ring; 63, driving column; 64, pre-locking member. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1, as Figure 2 , a polishing device for manufacturing and processing mechanical seals, including a polishing table 1, a polishing disk 4 is arranged on the polishing table 1, a driving wheel 2 is arranged at the center of the polishing table 1, a driving device is connected between the driving wheel 2 and the polishing disk 4, the driving device makes the driving wheel 2 and the polishing disk 4 rotate, a rotating disk 3 is placed on the polishing disk 4, the driving wheel 2 meshes with the rotating disk 3, the side wall of the polishing table 1 meshes with the rotating disk 3, when the driving wheel 2 rotates, the rotating disk 3 is driven to rotate, the rotating disk 3 rotates both self-rotation and revolution around the driving wheel 2, the rotating disk 3 fixes the workpiece 5 and moves the workpiece 5.

[0029] Please refer to Figures 1-4, the rotating disk 3 includes a main disk body 31, a jacket 32 and a locking ring 33. The jacket 32 includes an installation sleeve 321 and a hoop strap 322. The main disk body 31 includes a rotating disk 311 and an installation hole 312. The installation sleeve 321 is installed in the installation hole 312. The installation sleeve 321 can be clamped on the rotating disk 311 through a buckle or glued on the rotating disk 311. One end of the hoop strap 322 is fixed on the installation sleeve 321 through an installation pin 323. The other end of the hoop strap 322 passes around the inner wall of the installation sleeve 321 and then passes through the installation sleeve 321 and is connected with a pull rope 325. The installation sleeve 321 is provided with a through groove 324 for the hoop strap 322 to pass through. In order to prevent the hoop strap 322 from retracting into the installation sleeve 321 from the through groove 324, a limiting rod is provided at the end of the hoop strap 322. When the hoop strap 322 sleeves the workpiece, the pull rope 325 is tightened to hoop the workpiece. On the one hand, during polishing, it can limit the movement of the workpiece relative to the installation sleeve 321 and avoid friction between the two. On the other hand, when taking out the workpiece, by rotating the rotating disk 311, a force can be applied to all the workpieces, and it is more convenient to remove the workpiece. The end of the pull rope 325 is connected with a driving block 315. The locking ring 33 includes a rotating ring 331. The rotating ring 331 is provided with a driving hole 332 corresponding to the driving block 315. A part of the driving block 315 is inserted into the driving hole 332. When the rotating ring 331 rotates, each driving block 315 is pulled, so that the hoop strap 322 hoops the workpiece. The rotating ring 331 is provided with a locking member 333. The locking member 333 is configured to be able to lock the rotating disk 311 and the rotating ring 331 so that they cannot rotate relative to each other. The rotating ring 331 can be embedded in the rotating disk 311 or be relatively independent. In this embodiment, the rotating ring 331 is relatively independent. Magnets are inlaid at some positions of the rotating ring 331, and the corresponding positions of the rotating disk 311 can be attracted by the magnets. The rotating ring 331 is attracted to the rotating disk 311 by the magnets. The rotating disk 311 is provided with an activity groove 313 for accommodating the hoop strap 322 and for the end of the hoop strap 322 to move.

[0030] To ensure that the hoop strap 322 can be reset smoothly after being loosened and keep the round hole in the maximum state for facilitating the placement of the workpiece, the hoop strap 322 is composed of a spring and a rubber pad. The spring is located on the outer ring, and the rubber pad is adhered to the inner ring of the spring. When the pull rope 325 is loosened, the hoop strap 322 expands under the elastic force and automatically adheres tightly to the inner wall of the installation sleeve 321. In other embodiments, a positioning structure, such as a magnet, can be provided between the hoop strap 322 and the installation sleeve 321 to make the hoop strap 322 reset automatically.

[0031] Although when the rotating ring 331 rotates, each tightening belt 322 will drive each driving block 315 to move, so that the tightening belt 322 is tightened. However, due to rotating the same angle, the farther away from the center of the circle, the greater the displacement, resulting in different tightening degrees of each tightening belt 322. There may be a part that is too tight and a part that is too loose. For this reason, a driving groove 314 is provided on the rotating disk 311. The driving groove 314 is located on the outermost side, the movable groove 313 points to the center of the rotating disk 311, and the through groove 324 also points to the center of the circle. The movable groove 313 communicates with the driving groove 314. The driving block 315 slides in the driving groove 314. The transition between the movable groove 313 and the driving groove 314 is an arc. The draw ropes 325 in adjacent movable grooves 313 can be connected to the same driving block 315. When the rotating ring 331 rotates, the displacement amounts of each driving block 315 are the same, and the tightening degrees of each tightening belt 322 are the same. The movable groove 313 pointing to the center of the circle can reduce the interference with other movable grooves 313 or the mounting sleeve 321.

[0032] Please refer to Figure 4 , a buffer pad 326 is provided at the position of the mounting sleeve 321 corresponding to the mounting pin 323. The buffer pad 326 has elasticity. When the tightening belt 322 hoops the workpiece, the force application point between the workpiece and the mounting sleeve 321 is concentrated at the position where the mounting pin 323 is located. The buffer pad 326 directly reduces the friction between the mounting sleeve 321 and the workpiece. At the same time, the buffering ability of the buffer pad 326 can make the tightening degrees of each tightening belt 322 the same. When the tightening belt 322 is tightened, the tightening force is sufficient to overcome the friction between the workpiece and the polishing disk 4, so that the workpiece will not move relative to the mounting sleeve 32.

[0033] Please refer to Figure 5 and Figure 6 , positioning protrusions 316 are provided at the positions of the driving groove 314 corresponding to each driving block 315. An elastic cord 327 is provided on the draw rope 325. The two ends of the elastic cord 327 are fixedly connected to the draw rope 325. The elasticity of the elastic cord 327 makes the driving block 315 stick to the positioning protrusion 316, so that the positions of each positioning protrusion 316 are the same, which is convenient for the rotating ring 331 and the rotating disk 311 to be combined together. At the same time, when connecting the end of the draw rope 325 to the driving block 315, the draw rope 325 can be used as a reference when it is straightened, which is more intuitive. The draw rope 325 can be tied to the driving block 315 or clamped on the driving block 315.

[0034] Please refer to Figure 2 and Figure 7, A polishing device for manufacturing and processing mechanical seals further includes a pre-placement disk 6. The pre-placement disk 6 can be placed on other workbenches or support platforms independent of the polishing table 1. The pre-placement disk 6 includes a placement disk 61. There are two groups of limiting teeth on the placement disk 61. The gear can mesh with the outer side wall of the main disk body 31. When the rotating disk 3 is placed in the placement disk 61, the gear can clamp the main disk body 31 and restrict the rotation of the main disk body 31. At the same time, the space on both sides is large enough to facilitate the removal of the rotating disk 3. There is a placement groove 65 at the bottom of the placement disk 61, and the placement groove 65 corresponds to the clamping sleeve 32. After the workpiece is placed on the placement groove 65 and then the rotating disk 3 is placed, the workpiece can automatically enter the circular hole formed by the tightening belt 322 to achieve rapid placement of the workpiece. A driving ring 62 is installed at the bottom of the placement disk 61, and the driving ring 62 can rotate. In this embodiment, the driving ring 62 rotates under the drive of a driving motor. In other embodiments, the driving ring 62 can also be rotated manually. There are driving columns 63 on the driving ring 62, and there are corresponding driven holes 334 on the locking ring 33. The driving columns 63 can be inserted into the driven holes 334. When the driving ring 62 rotates, the rotating ring 331 is driven to rotate, causing the rotating ring 331 to rotate relative to the rotating disk 311, tightening the tightening belt 322, and clamping the workpiece. Then, the rotating disk 3 with the fixed workpiece is taken out from the pre-placement disk 6 and placed as a whole on the polishing disk 4.

[0035] Please refer to Figure 1The locking member 333 is a limit block. The limit block is installed on the rotating ring 331. The locking member 333 can float up and down relative to the rotating ring 331. That is, there are preset mounting holes on the rotating ring 331, and the locking member 333 is embedded in the mounting holes. At the same time, the locking member 333 is also provided with a limit structure to prevent the locking member 333 from disengaging from the mounting holes. The surfaces of the locking member 333 facing the rotating disk 311 are respectively provided with dense card slots and teeth. There is a permanent magnet inside the locking member 333. The permanent magnet makes the teeth on the end face of the locking member 333 engage with the card slots on the rotating disk 311. Since the rotating disk 3 moves as a whole against the polishing disk 4 during polishing, there is no relative movement in the vertical direction between the locking member 333 and the rotating disk 311, and the card slots will not disengage from the teeth. The rotating disk 311 is restricted by the circumferential line of the locking member 333 and will not rotate relative to the rotating ring 331. When it is necessary to release the workpiece, just separate the rotating ring 331 and the rotating disk 311. The tightening belt 322 and the driving block 315 are no longer restricted, and the tightening belt 322 automatically loosens to release the workpiece. A pre-locking member 64 is provided at the position of the placing disk 61 corresponding to the locking member 333. The pre-locking member 64 is composed of a placing groove corresponding to the locking member 333 and a locking magnet under the placing groove. The locking magnet generates a suction force on the locking member 333 through the driving ring 62. The locking magnet is an arc-shaped electromagnet. After the driving ring 62 rotates in place and the tightening belt 322 tightens the workpiece, the electromagnet is powered off, and the locking member 333 sucks the rotating disk 311 by its own suction force to make the card slots and teeth engage. In other embodiments, for example, when the rotating ring 331 is embedded in the rotating disk 311 and is movably connected to the rotating disk 311, the locking member 333 can be a pin. Locking holes are reserved on both the rotating ring 331 and the rotating disk 311. When the rotating ring 331 and the rotating disk 311 rotate relative to each other and the tightening belt 322 tightens the workpiece, the two locking holes are aligned, and the locking member 333 is inserted into the locking holes for locking.

[0036] After the main disk body 31 and the locking ring 33 are placed in the placing disk 61, the rotating ring 331 contacts the driving ring 62. The rotating ring 331 is suspended by two groups of limit teeth or the bottom of the placing groove 65 is lower than the bottom of the driving ring 62. In this embodiment, after the main disk body 31 and the locking ring 33 are placed in the placing disk 61, the bottom of the placing groove 65 is lower than the bottom of the driving ring 62. When the workpiece is fixed by the clamping sleeve 32, the bottom of the workpiece is lower than the bottom of the rotating disk 3. During polishing, the rotating disk 3 is in a state of being lifted by the workpiece as a whole, so that the rotating disk 3 does not contact the polishing disk 4, enabling the polishing liquid to better contact the workpiece and facilitating heat dissipation and dust leaving the workpiece.

[0037] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A polishing device for manufacturing and processing mechanical seals, comprising a polishing table (1), a polishing disc (4) is provided on the polishing table (1), a driving wheel (2) is provided at the center of the polishing table (1), a rotating disc (3) is placed on the polishing disc (4), the driving wheel (2) and the rotating disc (3) are meshed, and the side wall of the polishing table (1) is meshed with the rotating disc (3), and it is characterized in that: The rotating disc (3) includes a main disc body (31), a jacket (32) and a locking ring (33), the jacket (32) includes a mounting sleeve (321) and a tightening belt (322), the main disc body (31) includes a rotating disc (311), and mounting holes (312) corresponding to the mounting sleeve (321) are provided on the rotating disc (311). One end of the tightening belt (322) is fixed to the mounting sleeve (321) through a mounting pin (323). The other end of the tightening belt (322) passes through a through groove (324) on the mounting sleeve (321) after winding around the inner wall of the mounting sleeve (321) and is connected to a pull rope (325). The end of the pull rope (325) is connected to a driving block (315). The locking ring (33) includes a rotating ring (331), and the rotating ring (331) is detachably connected to the rotating disc (311). A driving hole (332) corresponding to the driving block (315) is provided on the rotating ring (331). When the rotating ring (331) rotates, each driving block (315) is pulled, so that the tightening belt (322) clamps the workpiece. A locking member (333) is provided on the rotating ring (331), and the locking member (333) is configured to be able to lock the rotating disc (311) and the rotating ring (331) so that they cannot rotate relative to each other.

2. A polishing device for manufacturing and processing mechanical seals according to claim 1, characterized in that, The tightening belt (322) is composed of a spring and a rubber pad, and the spring is located on the outer ring.

3. A polishing device for manufacturing and processing mechanical seals according to claim 1, characterized in that, An activity groove (313) for accommodating the tightening belt (322) and allowing the end of the tightening belt (322) to move is provided on the rotating disc (311), a driving groove (314) is provided on the rotating disc (311), both the activity groove (313) and the through groove (324) point to the center of the rotating disc (311), the activity groove (313) is communicated with the driving groove (314), and the driving block (315) slides in the driving groove (314).

4. A polishing device for manufacturing and processing mechanical seals according to claim 3, characterized in that, Positioning protrusions (316) are provided at positions corresponding to each driving block (315) in the driving groove (314), and a section of elastic cord (327) is provided on the pull rope (325), and both ends of the elastic cord (327) are fixedly connected to the pull rope (325).

5. A polishing device for manufacturing and processing mechanical seals according to claim 1, characterized in that, A buffer pad (326) with elasticity is provided at the position of the mounting sleeve (321) corresponding to the mounting pin (323).

6. A polishing device for manufacturing and processing mechanical seals according to claim 1, characterized in that, It further includes a pre-placement disk (6), the pre-placement disk (6) includes a placement disk (61), two groups of limiting teeth are provided on the placement disk (61), a placement groove (65) is provided at the bottom of the placement disk (61), and the placement grooves (65) correspond to the jacket (32) one by one. A driving ring (62) is installed at the bottom of the placement disk (61), the driving ring (62) can rotate, a driving column (63) is provided on the driving ring (62), and a driven hole (334) corresponding to the driving column (63) is provided on the locking ring (33), and the driving column (63) can be inserted into the driven hole (334).

7. A polishing device for manufacturing and processing mechanical seals according to claim 6, characterized in that, The locking member (333) is a limiting block, the limiting block is installed on the rotating ring (331), and the surfaces of the locking member (333) and the rotating disk (311) facing each other are respectively provided with dense card slots and card teeth. A permanent magnet is provided inside the locking member (333), and the permanent magnet makes the card teeth on the end face of the locking member (333) engage with the card slots on the end face of the rotating disk (311). A pre-locking member (64) is provided at the position of the placement disk (61) corresponding to the locking member (333), and the pre-locking member (64) is composed of a placement groove (65) corresponding to the locking member (333) and a locking magnet under the placement groove (65). The locking magnet can adjust the magnetic force on the locking member (333) to suck or release the locking member (333).

8. A polishing device for manufacturing and processing mechanical seals according to claim 7, characterized in that, The bottom of the placement groove (65) is lower than the bottom of the driving ring (62).

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