CN111843762A - Vibration-proof stone processing device - Google Patents

Abstract

The invention belongs to the field of stone polishing, and particularly relates to a vibration-proof stone processing device which comprises a machine head shell, a shaft A, a mounting head, a polishing sheet, an electric drive module, a tensioning wheel and the like, wherein the shaft A and the machine head shell rotate in the circumferential direction and are in axial sliding fit; after the relative position of the machine head and the stone plane is adjusted, the mounting head presses the machine head in the direction of the stone plane and limits the relative swing of the mounting head and the shaft A, the shaft A moves axially, the movement of the shaft A enables the belt to be further tensioned, so that the torque transmitted from the electric drive module on the shaft A is increased, and the polishing sheet with the adjusted direction can polish and polish the stone plane more effectively.

Description

Vibration-proof stone processing device

Technical Field

The invention belongs to the field of stone polishing, and particularly relates to a vibration-proof stone machining device.

Background

Manual grinders are widely used for polishing stone surfaces because of their high grinding efficiency.

When the prior art polisher is in contact with a stone, a polishing sheet rotating at a high speed drives the polisher to vibrate under the action of the rotation resistance of the stone, so that a local transitional polishing phenomenon of a stone plane is caused, and discomfort of an operator is caused. If the piece of polishing of high-speed rotation on the polisher is not parallel to the stone plane when contacting with the stone plane, then the piece of polishing of high-speed rotation can produce vibration by a relatively large margin under the planar resistance of stone, and the pit is ground out to the local piece of polishing that can be because of being contacted by the slope with the piece of polishing in stone plane simultaneously to influence the effect that the polisher was polished to the stone plane, reduce the efficiency of stone polishing.

In order to solve the problems of the manual grinding machine in the prior art, it is necessary to design a vibration-proof stone processing device.

The invention designs a vibration-proof stone processing device to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a vibration-proof stone processing device which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A vibration-proof stone processing device comprises a machine head shell, a shaft A, a connecting column, a cross shaft, a mounting head, a ring A, a disc seat, a polishing piece, a nut, a slider A, a volute spring, a spring A, a bevel gear D, a bevel gear C, a shaft C, a fixing seat A, a belt wheel B, a belt wheel A, a shaft sleeve, a bevel gear B, a shaft B, a bevel gear A, an electric drive module, a machine body shell, a sliding chute, a tensioning wheel, a slider B, a spring B, a slider C, a screw and an internal thread sleeve, wherein the shaft A and the machine head shell rotate in the circumferential direction and are in sliding fit in the axial direction; the middle part of the upper end of the cylindrical mounting head is provided with a connecting column which is connected with the tail end of the shaft A in a cross universal joint mode through a cross shaft; a volute spiral spring which swings and resets the connecting column relative to the shaft A is arranged on the cross shaft; the center of the cross shaft is positioned on the central axis of the shaft A and the mounting head; the ring A arranged at the upper end of the mounting head is matched with the ring groove A at the lower end of the machine head shell; the lower end of the mounting head is provided with a cylindrical boss which has the same central axis with the mounting head, a disc-shaped disc seat is nested and mounted on the cylindrical boss through the threaded matching of a nut and the cylindrical boss, and an annular polishing disc for polishing stone is mounted on the disc seat.

The sliding block A which is rotationally matched with the shaft A slides in the machine head shell along the direction parallel to the shaft A; a spring A for axially resetting the shaft A is arranged in the machine head shell; a bevel gear D arranged on the shaft A is positioned in a transmission cavity on the sliding block A; the bevel gear D is meshed with a bevel gear C installed in the transmission cavity, and a shaft C where the bevel gear C is located is in rotating fit with a fixed seat A installed in the transmission cavity; a shaft B is arranged in the machine body shell connected with the machine head shell, a shaft sleeve is rotatably matched on the shaft B, and a bevel gear B and a belt wheel A are arranged on the shaft sleeve; the belt wheel A is in transmission connection with a belt wheel B arranged on a shaft C through a belt; the output shaft of the electric drive module arranged in the machine body shell is provided with a bevel gear A meshed with the bevel gear B; a sliding block B slides in a sliding groove on the lower side of the machine body shell along the direction parallel to the shaft A, and a tightening wheel for fully tightening the belt is installed on the sliding block B.

The sliding block C sliding in the sliding groove is connected with the sliding block B through a spring B, and a screw rod in rotary fit with the sliding block C is in threaded fit with an internal thread sleeve arranged in the sliding groove; the side wall of the handpiece shell is provided with a structure for locking two extreme positions of the axial movement of the shaft A.

As a further improvement of the technology, a handle which is convenient to hold and apply pressure is arranged on the side wall of the machine head shell; the shaft A rotates in the circumferential direction and slides in a circular groove A on the machine head shell in the axial direction; the shaft A is in rotating fit with a circular groove C on the sliding block, and a ring B arranged on the shaft A rotates in a ring groove B on the inner wall of the circular groove C; the spring A is nested on the shaft A; one end of the spring A is connected with the sliding block A, and the other end of the spring A is connected with the inner wall of the transmission cavity.

Two guide blocks A are symmetrically arranged on the sliding block B and respectively slide in two guide grooves A on the inner wall of the sliding groove; the tensioning wheel is arranged on the sliding block B through two support lugs; the end face of the exposed end of the screw rod is provided with a hexagonal groove matched with the hexagonal wrench. The cooperation of guide block A and guide way A guarantees that slider B can not break away from the spout.

The upper end of the mounting head is provided with an outer convex spherical surface B which is matched with an inner concave spherical surface A at the lower end of the machine head shell; the connecting column is arranged in a circular groove B at the upper end of the mounting head. The center of the cross shaft and the center of the spherical surface A are both positioned on the central axis of the rear A, and the center of the spherical surface B is superposed with the center of the cross shaft, so that the mounting head is prevented from interfering with the head shell when swinging relative to the shaft A. The ring A is arranged on the spherical surface B, and the ring groove A is arranged on the spherical surface A. The spherical surface A and the spherical surface B are matched, on one hand, the interference of the machine head shell to the swinging of the mounting head relative to the shaft A is eliminated, on the other hand, the distance between the disk seat and the machine head shell is effectively shortened, and the structure of the invention is more compact.

As a further improvement of the technology, a stepped round block is rotatably matched in a stepped round groove on the end surface of the tail end of the shaft A, and a water through groove E on the stepped round block, which penetrates through two ends of the stepped round block, is in butt joint communication with a water through groove A which penetrates through two ends of the shaft A; the step round block is connected with an external water source through a hose provided with a switch valve; the water passing grooves B penetrating through the two ends of the connecting column are in butt joint communication with the water passing grooves D penetrating through the mounting head; a hose penetrating through the water passing groove C at the center of the cross shaft is used for communicating the water passing groove A with the water passing groove B. The matching of the step round groove and the step round block ensures that a hose for communicating the step round block with a water source cannot be twisted in the moving process of the water supply device, and the smooth water path is ensured constantly.

As a further improvement of the technology, a fixed seat B arranged on the side wall of the handpiece shell is hinged with the corner of the V-shaped swing rod through a swing shaft vertical to the shaft A; one end of the V-shaped swing rod is connected with the side wall of the sliding block A through a telescopic rod; one end of the telescopic rod is hinged with the tail end of the V-shaped oscillating bar, and the other end of the telescopic rod is hinged with the side wall of the sliding block A; a spring C and a spring D for stretching and resetting the telescopic rod are arranged in the telescopic rod; the telescopic rod is movably arranged in a swinging groove on the side wall of the machine head shell.

As a further improvement of the technology, the telescopic rod consists of an outer sleeve and an inner rod which are sleeved with each other; one end of the inner rod is provided with a slide block D, and the slide block D slides in a guide groove B on the inner wall of the outer sleeve; the spring C and the spring D are distributed on two sides of the sliding block D; one end of the inner rod is hinged with the side wall of the sliding block A, and the tail end of the outer sleeve is hinged with one end of the V-shaped swing rod; one end of the spring C is connected with the inner wall of the outer sleeve, and the other end of the spring C is connected with the sliding block B; one end of a spring D nested on the inner rod is connected with the sliding block B, and the other end of the spring D is connected with the inner wall of the outer sleeve; and the swinging groove is provided with a structure for locking two limit positions of the V-shaped swinging rod swinging around the swinging shaft. The slide block D is matched with the guide groove B to play a role in positioning and guiding the extension of the inner rod in the outer sleeve.

As a further improvement of the technology, two U-shaped seats matched with the V-shaped swing rod are symmetrically installed at two ends of the swing groove, two circular grooves D are symmetrically formed in the inner wall of each U-shaped seat, a limiting pin slides in each circular groove D along a direction parallel to the swing shaft, and the exposed end of each limiting pin is provided with a round head matched with the V-shaped swing rod; a spring E for resetting the corresponding limiting pin is arranged in each circular groove D; one end of the spring E is connected with the inner wall of the circular groove D, and the other end of the spring E is connected with the end face of the corresponding limiting pin; two guide blocks B are symmetrically installed on the limit pin and respectively slide in two guide grooves C on the inner wall of the corresponding circular groove D. The guide block B is matched with the guide groove C to play a positioning and guiding role in axial sliding of the limiting pin in the corresponding circular groove D, and meanwhile, the limiting pin is prevented from being separated from the circular groove D.

Compared with the traditional manual stone polisher, when the polishing sheet arranged on the disk seat is driven to contact with the stone plane at a certain angle by the mounting head hinged with the shaft A in a cross universal joint mode, the mounting head can drive the polishing sheet rotating at a high speed to self-adaptively swing relative to the shaft A under the pressing of an operator and the action of the stone plane, so that the polishing sheet is quickly parallel to the stone plane, and pits are prevented from being polished on the stone plane by the edge of the polishing sheet rotating at a high speed due to the contact with the inclined polishing sheet. Meanwhile, the vibration generated when the polishing sheet is initially contacted with the stone is eliminated by the swinging of the mounting head relative to the shaft A, and the local transition polishing of the plane of the stone caused by the vibration of the invention is prevented. When polishing piece and the initial contact of stone material plane, axle A receives less from the moment of torsion that the electric drive module transmitted to guarantee that polishing piece and stone material no matter with what kind of relative angle interact can not carry out excessive local polishing to the stone material plane in initial stage, for adjusting polishing piece and the planar relative position of stone material provide effectual buffering time, guarantee that polishing piece is little to the planar effect of polishing of stone material in this section buffering time, improve the planar follow-up quality and the efficiency of polishing of stone material.

After the relative position of the machine head and the stone plane is adjusted, the mounting head presses the machine head in the direction of the stone plane and limits the relative swing of the mounting head and the shaft A, the shaft A moves axially, the movement of the shaft A enables the belt to be further tensioned, so that the torque transmitted from the electric drive module on the shaft A is increased, and the polishing sheet with the adjusted direction can polish and polish the stone plane more effectively.

The invention is suitable for grinding the curved surface of the stone by locking the axial position of the shaft A relative to the machine head shell and adjusting the tightening wheel to further tighten the belt under the condition that the swing of the mounting head relative to the shaft A is not limited so as to increase the torque transmitted from the electric drive module to the shaft A. In the process of polishing the curved surface of the stone, along with the movement of the invention, the mounting head drives the polishing disc to perform self-adaptive swing under the action of the curved surface of the stone, thereby effectively polishing the curved surface of the stone and improving the polishing efficiency of the curved surface of the stone. The invention has simple structure and better use effect.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is an overall sectional view of the present invention.

FIG. 3 is a cross-sectional view of the shaft A, the cross-shaft, the hose, the connecting post, the mounting head, and the nose casing.

Fig. 4 is a schematic cross-sectional view of the telescopic rod and the sliding block a.

FIG. 5 is a schematic cross-sectional view of the fixing seat B, the limiting pin and the V-shaped swing link.

FIG. 6 is a schematic cross-sectional view of shaft A, bevel gear D, bevel gear C, shaft C, pulley B, belt, pulley A, bushing, bevel gear B, bevel gear A, and electric drive module in combination.

FIG. 7 is a cross-sectional view of the belt wheel A, belt wheel B, tightening wheel, slide block B, spring B, slide block C, and the inner thread sleeve.

Fig. 8 is a schematic sectional view of the head housing and its components.

Fig. 9 is a sectional view of the fixing base B.

FIG. 10 is a schematic cross-sectional view of a stepped circular block.

Fig. 11 is a schematic cross-sectional view of a slider a.

Fig. 12 is a sectional view of a mounting head and its.

FIG. 13 is a schematic cross-sectional view of the axis A in cooperation with a connecting post.

FIG. 14 is a cross-sectional view of the shaft A, cross and connecting post.

Fig. 15 is a schematic cross-sectional view of the tightening wheel, the lug and the sliding block B.

FIG. 16 is a cross-shaft schematic.

Fig. 17 is a schematic view of a fuselage shell and a partial cross-section thereof.

Number designation in the figures: 1. a handpiece shell; 2. a circular groove A; 3. a swinging groove; 4. a spherical surface A; 5. a ring groove A; 6. an axis A; 7. a water passing tank A; 8. a stepped circular groove; 9. connecting columns; 10. a water passing tank B; 11. a cross shaft; 12. a water trough C; 13. a hose; 14. a mounting head; 15. a spherical surface B; 16. a circular groove B; 17. a water passing tank D; 18. a cylindrical boss; 19. ring A; 20. a tray seat; 21. grinding the sheets; 22. a nut; 23. a stepped round block; 24. a water passing tank E; 25. a slide block A; 26. a transmission cavity; 27. a circular groove C; 28. a ring groove B; 29. a volute spiral spring; 30. ring B; 31. a spring A; 32. a bevel gear D; 33. a bevel gear C; 34. an axis C; 35. a fixed seat A; 36. a belt pulley B; 37. a belt; 38. a pulley A; 39. a shaft sleeve; 40. a bevel gear B; 41. a shaft B; 42. a bevel gear A; 43. an electric drive module; 44. a body shell; 45. a chute; 46. a guide groove A; 47. a tensioning wheel; 48. supporting a lug; 49. a slide block B; 50. a guide block A; 51. a spring B; 52. a slider C; 53. a screw; 54. a hexagonal groove; 55. an internal thread sleeve; 56. a V-shaped swing rod; 57. a pendulum shaft; 58. a fixed seat B; 59. a telescopic rod; 60. a jacket; 61. a guide groove B; 62. an inner rod; 63. a slider D; 64. a spring C; 65. a spring D; 66. a U-shaped seat; 67. a circular groove D; 68. a guide groove C; 69. a spacing pin; 70. a guide block B; 71. a spring E; 72. a handle.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, 2 and 6, it comprises a head housing 1, a shaft a6, a connecting column 9, a cross shaft 11, a mounting head 14, a ring a19, a disk seat 20, a grinding piece 21, a nut 22, a slide block a25, a spiral spring 29, a spring a31, a bevel gear D32, a bevel gear C33, a shaft C34, a fixed seat a35, a pulley B36, a belt 37, a pulley a38, a shaft sleeve 39, a bevel gear B40, a shaft B41, a bevel gear a42, an electric drive module 43, a body housing 44, a sliding groove 45, a tightening wheel 47, a slide block B49, a spring B51, a slide block C52, a screw 53 and an internal thread sleeve 55, wherein as shown in fig. 2, the shaft a6 is circumferentially and axially matched with the head housing 1 in a sliding manner; as shown in fig. 2 and 13, a connecting column 9 is installed in the middle of the upper end of the cylindrical mounting head 14, and the connecting column 9 is connected with the tail end of the shaft a6 through a cross shaft 11 in a cross universal joint manner; as shown in fig. 14, scroll spring 29 for returning coupling post 9 to pivot with respect to shaft a6 is mounted on cross shaft 11; as shown in fig. 2, 3, and 8, the center of the cross 11 is located on the central axis of the shaft a6 and the mounting head 14; the ring A19 arranged at the upper end of the mounting head 14 is matched with the ring groove A5 at the lower end of the machine head shell 1; the lower end of the mounting head 14 is provided with a cylindrical boss 18 which is concentric with the mounting head 14, a disc-shaped disc seat 20 is nested and mounted on the cylindrical boss 18 through the threaded matching of a nut 22 and the cylindrical boss 18, and an annular polishing disc 21 for polishing stone is mounted on the disc seat 20.

As shown in fig. 2, the slider a25, which is rotationally engaged with the shaft a6, slides in the head housing 1 in a direction parallel to the shaft a 6; a spring A31 which axially resets a counter shaft A6 is arranged in the handpiece shell 1; as shown in fig. 4, 6 and 11, the bevel gear D32 mounted on the shaft a6 is located in the transmission cavity 26 on the slide block a 25; the bevel gear D32 is meshed with a bevel gear C33 arranged in the transmission cavity 26, and a shaft C34 on which the bevel gear C33 is arranged is in rotating fit with a fixed seat A35 arranged in the transmission cavity 26; as shown in fig. 6 and 7, a shaft B41 is installed in the body shell 44 connected with the head shell 1, a shaft sleeve 39 is rotatably matched on the shaft B41, and a bevel gear B40 and a belt wheel a38 are installed on the shaft sleeve 39; the belt wheel A38 is in transmission connection with a belt wheel B36 arranged on a shaft C34 through a belt 37; the output shaft of the electric drive module 43 mounted in the body shell 44 is provided with a bevel gear A42 meshed with the bevel gear B40; as shown in fig. 7, 15 and 17, a slide block B49 slides in the slide groove 45 on the lower side of the body case 44 in a direction parallel to the axis a6, and a tightening pulley 47 for fully tightening the belt 37 is attached to the slide block B49.

As shown in fig. 7, the slider C52 sliding in the slide groove 45 is connected to the slider B49 by a spring B51, and the screw 53 rotatably engaged with the slider C52 is screw-engaged with the internally threaded sleeve 55 installed in the slide groove 45; the side wall of the handpiece case 1 is mounted with a structure for locking the two extreme positions of the movement of the shaft a6 in the axial direction.

As shown in fig. 1, a handle 72 for easy holding and pressing is installed on the side wall of the handpiece shell 1; as shown in fig. 2 and 8, the shaft a6 rotates circumferentially and slides axially in a circular groove a2 on the nose casing 1; as shown in fig. 2 and 11, the shaft a6 is rotationally matched with a circular groove C27 on the sliding block, and a ring B30 mounted on the shaft a6 rotates in a ring groove B28 on the inner wall of the circular groove C27; the spring A31 is nested on the shaft A6; one end of the spring A31 is connected with the slide block A25, and the other end is connected with the inner wall of the transmission cavity 26.

As shown in fig. 7 and 17, two guide blocks a50 are symmetrically installed on the sliding block B49, and the two guide blocks a50 respectively slide in two guide grooves a46 on the inner wall of the sliding groove 45; as shown in fig. 7 and 15, the tightening wheel 47 is mounted on the sliding block B49 through two support lugs 48; the end surface of the exposed end of the threaded rod 53 is provided with a hexagonal recess 54 for engagement with a hexagonal wrench. The cooperation of guide block a50 with guide slot a46 ensures that slide block B49 does not disengage from slide slot 45.

As shown in fig. 8 and 12, the upper end of the mounting head 14 has a convex spherical surface B15, and the spherical surface B15 is matched with a concave spherical surface a4 at the lower end of the handpiece shell 1; as shown in fig. 2, 3 and 12, connecting post 9 is mounted in a circular groove B16 in the upper end of mounting head 14. The center of the cross 11 and the center of the spherical surface a4 are both located on the central axis of the rear a, and the center of the spherical surface B15 coincides with the center of the cross 11, so that the mounting head 14 is prevented from interfering with the head housing 1 when swinging relative to the axis a 6. Ring A19 is mounted on spherical surface B15, and ring groove A5 is opened on spherical surface A4. The spherical surface a4 and the spherical surface B15 are matched to eliminate the interference of the head housing 1 on the swinging of the mounting head 14 relative to the shaft a6 on one hand, and effectively shorten the distance between the disk seat 20 and the head housing 1 on the other hand, so that the structure of the invention is more compact.

As shown in fig. 2 and 13, a stepped circular block 23 is rotatably fitted in the stepped circular groove 8 formed in the end surface of the shaft a 6; as shown in fig. 2, 3 and 10, the water passage grooves E24 penetrating through both ends of the stepped round block 23 are in butt joint communication with the water passage grooves a7 penetrating through both ends of the shaft a 6; the step round block 23 is connected with an external water source through a hose 13 provided with a switch valve; as shown in fig. 3 and 16, the water passage grooves B10 penetrating through both ends of the connecting column 9 are in butt communication with the water passage groove D17 penetrating through the mounting head 14; a hose 13 passing through the water passage C12 at the center of the cross 11 connects the water passage A7 with the water passage B10. The cooperation of the step round groove 8 and the step round block 23 ensures that the hose 13 for communicating the step round block 23 with a water source cannot be twisted in the moving process of the invention, and the smooth water path is ensured constantly.

As shown in fig. 4, a fixed seat B58 installed on the side wall of the handpiece shell 1 is hinged with the corner of the V-shaped swing link 56 through a swing shaft 57 perpendicular to the shaft a 6; one end of the V-shaped swing rod 56 is connected with the side wall of the slide block A25 through an expansion rod 59; one end of the telescopic rod 59 is hinged with the tail end of the V-shaped oscillating bar 56, and the other end of the telescopic rod 59 is hinged with the side wall of the slide block A25; a spring C64 and a spring D65 for stretching and retracting the telescopic rod 59 are arranged in the telescopic rod 59; as shown in fig. 4 and 8, the telescopic rod 59 is movably arranged in the swing groove 3 on the side wall of the machine head shell 1.

As shown in fig. 4, the telescopic rod 59 is composed of an outer sleeve 60 and an inner rod 62 which are sleeved with each other; one end of the inner rod 62 is provided with a slide block D63, and the slide block D63 slides in a guide groove B61 on the inner wall of the outer sleeve 60; the spring C64 and the spring D65 are distributed on two sides of the sliding block D63; one end of the inner rod 62 is hinged with the side wall of the slide block A25, and the tail end of the outer sleeve 60 is hinged with one end of the V-shaped swing rod 56; one end of the spring C64 is connected with the inner wall of the outer sleeve 60, and the other end is connected with the sliding block B49; one end of a spring D65 nested on the inner rod 62 is connected with the sliding block B49, and the other end is connected with the inner wall of the outer sleeve 60; as shown in fig. 2 and 5, a structure for locking two extreme positions of the V-shaped swing link 56 swinging around the swing shaft 57 is installed at the swing groove 3. The engagement of the slider D63 with the guide groove B61 plays a positioning and guiding role in extending and retracting the inner lever 62 in the outer sheath 60.

As shown in fig. 2, 5 and 9, two U-shaped seats 66 engaged with the V-shaped swing link 56 are symmetrically installed at two ends of the swing slot 3, two circular slots D67 are symmetrically formed on an inner wall of each U-shaped seat 66, a limit pin 69 slides in each circular slot D67 along a direction parallel to the swing shaft 57, and an exposed end of each limit pin 69 has a round head engaged with the V-shaped swing link 56; each circular groove D67 is internally provided with a spring E71 for returning the corresponding limit pin 69; one end of the spring E71 is connected with the inner wall of the circular groove D67, and the other end is connected with the end face of the corresponding limit pin 69; two guide blocks B70 are symmetrically arranged on the limit pin 69, and the two guide blocks B70 respectively slide in two guide grooves C68 on the inner wall of the corresponding circular groove D67. The engagement of the guide block B70 with the guide groove C68 provides a positioning guide for the axial sliding movement of the stopper pin 69 within the corresponding circular groove D67, while preventing the stopper pin 69 from disengaging from the circular groove D67.

The electric drive module 43 of the present invention is implemented by the prior art and mainly consists of a motor, a reducer and a control unit.

The working process of the invention is as follows: in the initial state, the V-shaped oscillating bar 56 is not at the two oscillation limit positions, the V-shaped oscillating bar 56 and the telescopic rod 59 do not lock the slider a25, and the spring C64 and the spring D65 in the telescopic rod 59 are both in a natural state. The V-shaped swing link 56 is not inserted into any one of the U-shaped seats 66. Spring a31 is in a compressed state. The slider a25 is located at the bottom limit position in the head shell 1. The tightening wheel 47 is in a tightening state for the belt 37, and the spring B51 is in a tension energy storage state. The mounting head 14 and the shaft a6 are in a concentric state with each other by four wrap springs 29 in their natural state. The spherical surface B15 on the mounting head 14 has clearance with the spherical surface A4 on the head shell 1, and the ring A19 is not inserted into the ring groove A5. The ring groove A5 on the spherical surface A4 is opposite to the ring A19.

When the invention is used for grinding stone planes, the electric drive module 43 is started first, and the output shaft of the electric drive module 43 drives the shaft A6 to rotate rapidly relative to the sliding block A25 through a bevel gear A42, a bevel gear B40, a shaft sleeve 39, a belt wheel A38, a belt 37, a belt wheel B36, a shaft C34, a bevel gear C33 and a bevel gear D32. The shaft a6 drives the mounting head 14 to rotate synchronously through the cross shaft 11 and the connecting column 9, and the mounting head 14 drives the polishing plate 21 to rotate rapidly and synchronously through the disc seat 20. At the same time, the belt 37 rotates the tightening wheel 47.

The body shell 44 is held in one hand and the sanding sheet 21 is moved toward the stone at an angle parallel to the plane of the stone by the handle 72. When the polishing sheet 21 is initially contacted with the plane of the stone, the polishing sheet 21 drives the whole machine body of the invention to shake under the action of the surface of the stone because the surface of the stone is rough. During dithering of the machine body, mounting head 14 adaptively oscillates relative to axis A6 as the stone material interacts with the high speed rotating abrasive discs 21, deforming scroll spring 29. The swinging of the nose shell 1 relative to the mounting head 14 makes the vibrating body not drive the polishing sheet 21 on the disk seat 20 to vibrate relative to the stone surface, but still keeps the polishing sheet 21 in full parallel contact with the stone surface, so as to avoid that the polishing sheet 21 polishes the stone surface to form obvious pits due to the interaction between the local edge of the polishing sheet 21 and the stone surface because the polishing sheet 21 shakes synchronously with the body along with the mounting head 14 where the polishing sheet is located and the stone surface generates a certain deflection angle.

When the surface of the stone is polished by the polishing blades 21, the vibration of the stone surface to the mounting head 14 and the head housing 1 by the polishing blades 21 disappears, and the head housing 1 is smoothly swung back and returned with respect to the mounting head 14 by the returning action of the wrap spring 29. At this time, the body shell 44 and the nose shell 1 are pressed toward the stone surface, so that the nose shell 1 moves axially relative to the mounting head 14, and the ring a19 on the mounting head 14 moves toward the ring groove a5 on the spherical surface a 4. The shaft A6 slides axially relative to the machine head shell 1, the shaft A6 drives the spur gear D and the sliding block A25 which is matched with the shaft A6 in a rotating mode to synchronously move vertically and upwards in the machine head shell 1, and the spring A31 is further compressed to store energy. The slide block A25 drives the bevel gear C33 and the belt wheel B36 to synchronously move vertically upwards through the fixing seat A35 and the shaft C34, and the belt wheel B36 quickly tightens the belt 37, so that the torque which is transmitted from the electric drive module 43 by the belt 37 and is borne on the shaft A6 is quickly increased. The shaft A6 with the increased rotation torque drives the polishing plate 21 to polish the stone plane more efficiently through the mounting head 14 and the disc seat 20, and the efficiency of stone polishing is further improved.

When the ring A19 enters the ring groove A5, the relative swing between the mounting head 14 and the telescopic shaft or the machine head shell 1 which can not generate vibration is limited, the shaft A6 further tightens the belt 37 through a series of transmission to the limit, and the torque transmitted by the belt 37 from the electric drive module 43 on the shaft A6 is the largest, which is beneficial to the more efficient grinding of the stone surface by the invention.

In the process that the sliding block A25 slides in the handpiece shell 1 along the central axis direction of the shaft A6, the sliding block A25 drives the V-shaped oscillating bar 56 to swing around the oscillating shaft 57 in a self-adaptive manner by stretching or compressing the telescopic rod 59.

When the use of the invention for the grinding of stone slabs is finished, it is sufficient to stop the operation of the electric drive module 43. With the cancellation of the acting force on the head shell 1 and the body shell 44, the slide block a25 drives the shaft a6 to be quickly reset relative to the head shell 1 under the reset action of the spring a31, the slide block a25 drives the mounting head 14 to be reset relative to the head shell 1 through a series of transmission, and the tightening degree of the belt 37 is quickly restored to the initial state.

When the operator is experienced and familiar with the use of the present invention, the operator does not wear the stone plane with the edge of the grinding sheet 21 dented when the stone plane is initially contacted with the stone plane due to the non-parallelism of the grinding sheet 21 and the stone surface, which occurs when the grinding sheet 21 rotating at a high speed initially contacts the stone plane, but maintains the parallelism of the grinding sheet 21 and the stone plane before and after grinding the stone plane. Meanwhile, an operator familiar with the use of the invention can effectively overcome the vibration caused by the initial contact of the polishing sheet 21 rotating at a high speed with the plane of the stone by grasping the holding force of the invention, thereby avoiding the local polishing phenomenon of the plane of the stone caused by the vibration. In order to solve the problem, before the stone is ground, when the machine is not started, the mounting head 14 and the machine head shell 1 generate relative axial movement, so that the ring a19 enters the ring groove a5 on the spherical surface a4, the sliding block a25 moves to an upper limit position in the machine head shell 1 along the central axis direction of the shaft a6, the spring a31 is further compressed to store energy, the sliding block a25 drives the bevel gear C33 and the belt wheel B36 to synchronously move vertically upwards through the fixing seat a35 and the shaft C34, and the belt wheel B36 quickly and further tightens the belt 37, so that the torque transmitted by the belt 37 from the electric drive module 43 on the shaft a6 is maximized. And simultaneously swings the V-shaped swing link 56 downward about the swing shaft 57.

When the V-shaped oscillating bar 56 just crosses two limiting pins 69 in the lower U-shaped seat 66 to enter the lower U shape and is limited to swing back by the two limiting pins 69, one part of the V-shaped oscillating bar 56 hinged to the telescopic rod 59 is just overlapped with the telescopic rod 59, the central axis of the telescopic rod 59 is parallel to the central axis of one part of the V-shaped oscillating bar 56, the spring C64 in the telescopic rod 59 is stretched to store energy, the spring D65 is compressed to the limit, and the deformed spring C64 and the deformed spring D65 enable the V-shaped oscillating bar 56 with the swinging back tendency to be tightly attached to the round head ends of the two limiting pins 69 through the inner rod 62 and the outer sleeve 60 of the telescopic rod 59 and keep the overlapping state of one part of the V-shaped oscillating bar 56. At this time, because the acting force of the slide block A25 on the V-shaped oscillating bar 56 through the telescopic rod 59 just passes through the central axis of the oscillating shaft 57, the moment generated by the slide block A25 on the V-shaped oscillating bar 56 through the acting force of the telescopic rod 59 on the V-shaped oscillating bar 56 is zero, so that the V-shaped oscillating bar 56 indirectly locks the movement of the slide block A25 along the central axis direction of the shaft A6, the shaft A6 drives the ring A19 through the mounting head 14 to keep the state of being embedded in the ring groove A5, and the mounting head 14 and the machine head shell 1 are guaranteed not to relatively oscillate any more, so that the initial adaptation time of an operator to plane stone grinding is shortened, and the efficiency of the invention to stone grinding is improved.

When the locked invention finishes grinding the stone plane, the electric drive module 43 is stopped. The manual V-shaped swing link 56 is swung out of the U-shaped seat 66 manually, so that the V-shaped swing link 56 overcomes the limitation of the corresponding two limit pins 69 and restores to the original state. With the cancellation of the acting force on the head shell 1 and the body shell 44, the slide block a25 drives the shaft a6 to be quickly reset relative to the head shell 1 under the reset action of the spring a31, the slide block a25 drives the mounting head 14 to be reset relative to the head shell 1 through a series of transmission, and the tightening degree of the belt 37 is quickly restored to the initial state.

When the grinding machine is used for grinding the curved surface of the stone, the structural characteristics of the curved surface of the stone determine that the grinding machine can generate self-adaptive swing along with the curved surface of the stone due to the change of a grinding angle relative to the machine head shell 1 or the axis A6 when the curved surface of the stone is ground, so that the grinding sheet 21 rotating at a high speed is prevented from excessively grinding the ground curved surface of the stone when the grinding sheet is used for grinding the curved surface of the stone in an expanded range, and the grinding quality and efficiency of the grinding machine for the curved surface of the stone are improved. Therefore, when grinding a curved stone surface, the mounting head 14 cannot move axially relative to the head housing 1 or the axis a6, and the ring a19 is prevented from entering the annular groove a5 to limit the swing of the mounting head 14 relative to the head housing 1.

However, in order to ensure the efficient grinding of the curved surface of the stone material by the present invention, the torque transmitted from the electric drive module 43 to the shaft a6 by the belt 37 in the initial state is the minimum, and the torque applied to the shaft a6 from the electric drive module 43 must be increased and adjusted by further tightening and adjusting the belt 37, and the adjustment process is as follows:

screw 53 is screwed through the cooperation of a hexagonal wrench and a hexagonal groove 54 on screw 53, screw 53 drives slider C52 which is in rotary fit with screw 53 to move outwards of body shell 44 along sliding groove 45 under the action of internal thread sleeve 55 screwed with screw 53, slider C52 drives slider B49 to move outwards of body shell 44 through spring B51, slider B49 drives tightening wheel 47 through two lugs 48 to further tension and tighten belt 37, and spring B51 is further stretched and stored energy under the stopping of belt 37 and the pulling of slider C52. The torque transmitted to the shaft a6 by the further tightened belt 37 is significantly increased through a series of transmissions, by which the tightening adjustment of the belt 37 is completed. Since the threaded engagement of the threaded rod 53 and the internally threaded sleeve 55 has a self-locking function, the further tightening state of the tightening wheel 47 on the belt 37 remains unchanged without being actively adjusted.

Then, the V-shaped swing link 56 swings upwards in the U-shaped seat 66, when the V-shaped swing link 56 just crosses two limit pins 69 in the upper U-shaped seat 66, enters the upper U-shape, and is limited by the two limit pins 69 to swing back, one of the V-shaped swing link 56 hinged to the telescopic rod 59 is just parallel to the telescopic rod 59, the spring D65 in the telescopic rod 59 is stretched to store energy, the spring C64 is compressed to the limit, and the deformed spring C64 and the deformed spring D65 enable the V-shaped swing link 56 with the tendency of swinging back to be tightly attached to the round end of the two limit pins 69 through the inner rod 62 and the outer sleeve 60 of the telescopic rod 59 and keep the parallel state of one of the V-shaped swing link 56 and the telescopic rod 59. At this time, because the acting force of the slide block A25 on the V-shaped oscillating bar 56 through the telescopic rod 59 also just passes through the central axis of the oscillating shaft 57, the moment generated by the slide block A25 on the V-shaped oscillating bar 56 through the acting force of the telescopic rod 59 on the V-shaped oscillating bar 56 is zero, so that the V-shaped oscillating bar 56 indirectly locks the movement of the slide block A25 along the central axis direction of the shaft A6, the slide block A25 is kept at the bottom in the head shell 1, the relative swing between the mounting head 14 and the head shell 1 is ensured not to be limited, the grinding of the curved surface of the stone material is adapted, and the grinding efficiency of the curved surface of the stone material is improved.

When the V-shaped swing link 56 swings into the U-shaped seat 66 upward or downward, the round end of two limit pins 69 symmetrically installed in the U-shaped seat 66 does not obstruct the swing of the V-shaped swing link 56 into the U-shaped seat 66. When the V-shaped swing link 56 interacts with the two limit pins 69 in the U-shaped seat 66, the two limit pins 69 respectively contract into the corresponding circular grooves D67 under the action of the V-shaped swing link 56, and the spring E71 in the circular groove D67 is further compressed to store energy. When the V-shaped oscillating bar 56 passes over the two limit pins 69, the two limit pins 69 are respectively reset instantly under the reset action of the corresponding springs E71 and limit the swinging back of the V-shaped oscillating bar 56 swinging into the U-shaped seat 66 around the oscillating shaft 57 to a certain extent, so as to prevent the swinging back of the V-shaped oscillating bar 56 caused by the working vibration of the invention when the V-shaped oscillating bar 56 indirectly locking the slide block a25 through the telescopic rod 59 is not subjected to an external force, and avoid the actual effect of locking the position state of the slide block a25 caused by the swinging back of the V-shaped oscillating bar 56.

When the slider a25 does not need to be locked in the extreme position state in the handpiece shell 1, the round ends of the two limit pins 69 in the U-shaped seat 66 are always matched with the V-shaped oscillating bar 56, so that the V-shaped oscillating bar 56 is swung out of the corresponding U-shaped seat 66 by swinging the V-shaped oscillating bar 56 by hand to overcome the limitation of the two limit pins 69 in the corresponding U-shaped seat 66.

In the process of polishing the stone by the polishing sheet 21, a switch valve on the hose 13 connecting the stepped circular block 23 and a water source is opened, so that water in the water source is injected to the polished part on the surface of the stone sequentially through the water channel E24, the water channel A7, the hose 13 communicating the water channel A7 with the water channel B10, the water channel B10 and the water channel D17, and the abrasion of the polishing sheet 21 is reduced.

In conclusion, the beneficial effects of the invention are as follows: when the present invention drives the polishing sheet 21 mounted on the base 20 to contact the stone plane at a certain angle by the mounting head 14 hinged to the shaft a6 in a cross universal joint manner, under the pressing of an operator and the action of the stone plane, the mounting head 14 will drive the polishing sheet 21 rotating at a high speed to perform self-adaptive swing relative to the shaft a6, so that the polishing sheet 21 is quickly parallel to the stone plane, and the stone plane is prevented from being polished out of a pit by the edge of the polishing sheet 21 rotating at a high speed due to the contact with the inclined polishing sheet 21. At the same time, the oscillation of the mounting head 14 about the axis a6 eliminates the vibrations that occur when the sanding sheet 21 makes initial contact with the stone material, preventing localized over-sanding of the stone plane due to the vibrations of the present invention. When polishing piece 21 and the initial contact of stone material plane, axle A6 receives the moment of torsion that comes from the transmission of electric drive module 43 less to guarantee that polishing piece 21 and stone material no matter can not carry out excessive local polishing to the stone material plane with what kind of relative angle interact in initial stage, for adjusting polishing piece 21 and the planar relative position of stone material provides effectual buffering time, guarantee that polishing piece 21 is little to the planar effect of polishing of stone material in this section buffering time, improve the planar follow-up quality and the efficiency of polishing of stone material.

After the relative position between the present invention and the stone plane is adjusted, along with the press to the machine head in the stone plane direction and the limitation to the relative swing of the mounting head 14 and the shaft a6, the mounting head 14 drives the shaft a6 to move axially, the movement of the shaft a6 further tensions the belt 37, so that the torque transmitted from the electric driving module 43 on the shaft a6 is increased, and the polishing plate 21 with the adjusted orientation performs more effective polishing to the stone plane.

The present invention is suitable for grinding stone curves by locking the axial position of the shaft a6 relative to the head housing 1 and adjusting the tightening wheel 47 to further tension the belt 37 to increase the torque transmitted from the electric drive module 43 to the shaft a6 without the restriction of the swing of the mounting head 14 relative to the shaft a 6. In the process of polishing the curved surface of the stone, along with the movement of the invention, the mounting head 14 drives the polishing sheet 21 to perform self-adaptive swing under the action of the curved surface of the stone, thereby effectively polishing the curved surface of the stone and improving the polishing efficiency of the curved surface of the stone.

Claims (6)

1. The utility model provides a stone material processingequipment of antivibration which characterized in that: the novel belt wheel type electric driving machine comprises a machine head shell, a shaft A, a connecting column, a cross shaft, an installing head, a ring A, a disc seat, a polishing disc, a nut, a sliding block A, a volute spring, a spring A, a bevel gear D, a bevel gear C, a shaft C, a fixing seat A, a belt wheel B, a belt wheel A, a shaft sleeve, a bevel gear B, a shaft B, a bevel gear A, an electric driving module, a machine body shell, a sliding groove, a tensioning wheel, a sliding block B, a spring B, a sliding block C, a screw rod and an internal thread sleeve, wherein the shaft A and the machine head shell rotate; the middle part of the upper end of the cylindrical mounting head is provided with a connecting column which is connected with the tail end of the shaft A in a cross universal joint mode through a cross shaft; a volute spiral spring which swings and resets the connecting column relative to the shaft A is arranged on the cross shaft; the center of the cross shaft is positioned on the central axis of the shaft A and the mounting head; the ring A arranged at the upper end of the mounting head is matched with the ring groove A at the lower end of the machine head shell; the lower end of the mounting head is provided with a cylindrical boss which has the same central axis with the mounting head, a disc-shaped disc seat is nested and mounted on the cylindrical boss through the threaded matching of a nut and the cylindrical boss, and an annular polishing disc for polishing stone is mounted on the disc seat;

the sliding block A which is rotationally matched with the shaft A slides in the machine head shell along the direction parallel to the shaft A; a spring A for axially resetting the shaft A is arranged in the machine head shell; a bevel gear D arranged on the shaft A is positioned in a transmission cavity on the sliding block A; the bevel gear D is meshed with a bevel gear C installed in the transmission cavity, and a shaft C where the bevel gear C is located is in rotating fit with a fixed seat A installed in the transmission cavity; a shaft B is arranged in the machine body shell connected with the machine head shell, a shaft sleeve is rotatably matched on the shaft B, and a bevel gear B and a belt wheel A are arranged on the shaft sleeve; the belt wheel A is in transmission connection with a belt wheel B arranged on a shaft C through a belt; the output shaft of the electric drive module arranged in the machine body shell is provided with a bevel gear A meshed with the bevel gear B; a sliding block B slides in a sliding chute on the lower side of the machine body shell along the direction parallel to the shaft A, and a tightening wheel for fully tightening the belt is arranged on the sliding block B;

the sliding block C sliding in the sliding groove is connected with the sliding block B through a spring B, and a screw rod in rotary fit with the sliding block C is in threaded fit with an internal thread sleeve arranged in the sliding groove; the side wall of the handpiece shell is provided with a structure for locking two extreme positions of the axial movement of the shaft A.

2. The vibration-proof stone processing device as claimed in claim 1, wherein: a handle which is convenient to hold and apply pressure is arranged on the side wall of the machine head shell; the shaft A rotates in the circumferential direction and slides in a circular groove A on the machine head shell in the axial direction; the shaft A is in rotating fit with a circular groove C on the sliding block, and a ring B arranged on the shaft A rotates in a ring groove B on the inner wall of the circular groove C; the spring A is nested on the shaft A; one end of the spring A is connected with the sliding block A, and the other end of the spring A is connected with the inner wall of the transmission cavity;

two guide blocks A are symmetrically arranged on the sliding block B and respectively slide in two guide grooves A on the inner wall of the sliding groove; the tensioning wheel is arranged on the sliding block B through two support lugs; the end surface of the exposed end of the screw rod is provided with a hexagonal groove matched with a hexagonal wrench;

the upper end of the mounting head is provided with an outer convex spherical surface B which is matched with an inner concave spherical surface A at the lower end of the machine head shell; the connecting column is arranged in a circular groove B at the upper end of the mounting head; the center of the cross shaft and the center of the spherical surface A are both positioned on the central axis of the rear A, and the center of the spherical surface B is superposed with the center of the cross shaft; the ring A is arranged on the spherical surface B, and the ring groove A is arranged on the spherical surface A.

3. The vibration-proof stone processing device as claimed in claim 1, wherein: a step round block is rotatably matched in the step round groove on the end face of the tail end of the shaft A, and a water through groove E which runs through the two ends of the step round block is in butt joint communication with a water through groove A which runs through the two ends of the shaft A; the step round block is connected with an external water source through a hose provided with a switch valve; the water passing grooves B penetrating through the two ends of the connecting column are in butt joint communication with the water passing grooves D penetrating through the mounting head; a hose penetrating through the water passing groove C at the center of the cross shaft is used for communicating the water passing groove A with the water passing groove B.

4. The vibration-proof stone processing device as claimed in claim 1, wherein: a fixed seat B arranged on the side wall of the machine head shell is hinged with the corner of the V-shaped swing rod through a swing shaft vertical to the shaft A; one end of the V-shaped swing rod is connected with the side wall of the sliding block A through a telescopic rod; one end of the telescopic rod is hinged with the tail end of the V-shaped oscillating bar, and the other end of the telescopic rod is hinged with the side wall of the sliding block A; a spring C and a spring D for stretching and resetting the telescopic rod are arranged in the telescopic rod; the telescopic rod is movably arranged in a swinging groove on the side wall of the machine head shell.

5. The vibration-proof stone processing device as claimed in claim 4, wherein: the telescopic rod consists of an outer sleeve and an inner rod which are sleeved with each other; one end of the inner rod is provided with a slide block D, and the slide block D slides in a guide groove B on the inner wall of the outer sleeve; the spring C and the spring D are distributed on two sides of the sliding block D; one end of the inner rod is hinged with the side wall of the sliding block A, and the tail end of the outer sleeve is hinged with one end of the V-shaped swing rod; one end of the spring C is connected with the inner wall of the outer sleeve, and the other end of the spring C is connected with the sliding block B; one end of a spring D nested on the inner rod is connected with the sliding block B, and the other end of the spring D is connected with the inner wall of the outer sleeve; and the swinging groove is provided with a structure for locking two limit positions of the V-shaped swinging rod swinging around the swinging shaft.

6. The vibration-proof stone processing device as claimed in claim 5, wherein: two U-shaped seats matched with the V-shaped swing rod are symmetrically arranged at two ends of the swing groove, two circular grooves D are symmetrically formed in the inner wall of each U-shaped seat, a limiting pin slides in each circular groove D along the direction parallel to the swing shaft, and the exposed end of each limiting pin is provided with a round head matched with the V-shaped swing rod; a spring E for resetting the corresponding limiting pin is arranged in each circular groove D; one end of the spring E is connected with the inner wall of the circular groove D, and the other end of the spring E is connected with the end face of the corresponding limiting pin; two guide blocks B are symmetrically installed on the limit pin and respectively slide in two guide grooves C on the inner wall of the corresponding circular groove D.

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