CN212859037U

CN212859037U - Double-side grinding machine

Info

Publication number: CN212859037U
Application number: CN202021385710.8U
Authority: CN
Inventors: 李夏法
Original assignee: Wenling Meipu Machinery Co ltd
Current assignee: Wenling Meipu Machinery Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-04-02
Anticipated expiration: 2030-07-14

Abstract

The utility model provides a double-sided grinder, which comprises a frame, a bottom grinding device and a top grinding device; the bottom grinding device comprises a lower grinding disc, a planetary gear, a sun gear and a bottom driving mechanism, the bottom driving mechanism is connected with the lower grinding disc, and the bottom driving mechanism comprises a bottom driving motor; the top grinding device comprises a lifting mechanism, an upper grinding disc and a top driving mechanism, and the top driving mechanism comprises a top driving motor. During the use, the upper surface and the lower surface homoenergetic of work piece are ground the polishing, have promoted this double side grinder's machining efficiency in the very big degree. Can control planetary gear and last abrasive disc respectively through bottom actuating mechanism and top actuating mechanism and rotate with different rotational speeds, promote this double side grinder's suitability to a certain extent. The rotating speeds of the bottom driving motor and the top driving motor are changed to respectively change the rotating speeds of the lower grinding disc and the upper grinding disc, so that different grinding effects can be obtained.

Description

Double-side grinding machine

Technical Field

The utility model relates to a grinding device, in particular to a double-sided grinding machine.

Background

The grinding machine is a grinding machine that grinds the surface of a workpiece with a grinder coated with or embedded with an abrasive. The grinding machine is mainly used for grinding high-precision planes, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces and other molded surfaces in workpieces.

At present, chinese patent with publication number CN205438123U discloses a grinder, including the frame and the grinding mechanism of setting in the frame, the grinding mechanism includes initiative abrasive disc and the passive abrasive disc of setting on initiative abrasive disc, initiative abrasive disc passes through drive mechanism and is connected with the motor, the center department of initiative abrasive disc is provided with a sun gear, be provided with the ring gear on the outer peripheral face of passive abrasive disc, ring gear and sun gear meshing, still be connected with a jack catch on the passive abrasive disc, the jack catch is used for spacing passive abrasive disc.

Putting a plurality of workpieces to be ground into the passive grinding disc, so that the workpieces are mutually abutted and the inner cavity of the passive grinding disc is filled; and then, the motor is started, the motor drives the driving grinding disc to rotate through the transmission mechanism, and the driving grinding disc grinds and polishes the bottom surface of the workpiece in the driven grinding disc.

However, this polishing machine can polish only one side of a workpiece when it is used, and if it is necessary to polish both sides of the workpiece, it is necessary to stop the polishing machine and turn over the workpiece to perform another polishing when one side of the workpiece is completely polished. This process takes a long time, and reduces the processing efficiency of the grinder.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a double-side grinder, which has the advantages of high processing efficiency and capability of grinding and polishing both sides of a workpiece simultaneously.

In order to solve the technical problem, the technical scheme of the utility model is that: a double-sided grinder comprises a frame, a bottom grinding device and a top grinding device;

a placing groove is formed in the rack, and an inner gear ring is arranged at the inner groove wall of the placing groove;

the bottom grinding device comprises a lower grinding disc arranged in the placing groove, a planetary gear arranged on the lower grinding disc, a sun gear arranged at the center of the placing groove and meshed with the planetary gear, and a bottom driving mechanism used for driving the sun gear to rotate circumferentially, wherein the planetary gear is meshed with the inner gear ring, a placing hole is formed in the planetary gear in a penetrating manner, and the bottom driving mechanism comprises a bottom driving motor used for providing power;

the top grinding device comprises a lifting mechanism arranged on the rack, an upper grinding disc arranged on the output end of the lifting mechanism, and a top driving mechanism used for driving the upper grinding disc to rotate circumferentially, wherein the lifting mechanism is used for driving the upper grinding disc to be close to or far away from the placing groove, and the top driving mechanism comprises a top driving motor used for providing power.

According to the technical scheme, when the grinding device is used, a workpiece to be ground is placed in the placing hole, so that the bottom surface of the workpiece is in contact with the lower grinding disc, and the top surface of the workpiece protrudes out of the placing hole; the upper grinding disc is controlled to move towards one side of the placing groove by the lifting mechanism until the upper grinding disc is contacted with the top surface of the workpiece; the bottom driving mechanism controls the sun gear to rotate in the circumferential direction, the sun gear drives the planetary gear meshed with the sun gear to rotate in the rotating process, and the planetary gear revolves around the sun gear through the internal gear meshed with the planetary gear in the rotating process. Planetary gear rotates the in-process, is located the work piece of placing the hole inside and rotates for abrasive disc and last abrasive disc down for the upper surface and the lower surface homoenergetic lapping of work piece are polished, have promoted this double side grinder's machining efficiency in the very big degree. Simultaneously, when using, can control planetary gear and go up the grinding miller through bottom actuating mechanism and top actuating mechanism respectively and rotate with different rotational speeds, promoted this double side grinder's suitability to a certain extent. The rotating speeds of the bottom driving motor and the top driving motor are changed to respectively change the rotating speeds of the sun gear and the upper grinding disc so as to obtain different grinding effects.

Preferably, the bottom driving mechanism comprises a rotating shaft, a sleeve and a bottom driving gear, wherein the rotating shaft is rotatably connected to the rack, the sleeve is arranged on the rotating shaft, the bottom driving gear is meshed with the bottom driving gear, the top of the rotating shaft penetrates through the rack and extends into the placing groove, the sun gear is coaxially arranged on the top of the rotating shaft, and the bottom driving gear is connected with an output shaft of the bottom driving motor.

Through above-mentioned technical scheme, during the use, open bottom driving motor, bottom driving motor drive bottom driving gear carries out circumferential direction, and the bottom driving gear drives the rotation of bottom drive gear with it meshing, and bottom drive gear carries out circumferential direction through pivot drive sun gear.

Preferably, the number of the bottom transmission gears is a plurality, the bottom transmission gears are distributed along the axial direction of the rotating shaft, and the reference circle diameters of the bottom transmission gears are different.

Through the technical scheme, when the novel gear box is used, the bottom driving gear can be controlled to be meshed with the bottom transmission gear with different reference circle diameters according to the requirement of the rotating speed, so that the transmission ratio is changed to obtain different rotating speeds.

Preferably, the cover is equipped with an auxiliary cylinder in the pivot, the top of auxiliary cylinder is connected under on the abrasive disc, the cover is equipped with auxiliary drive gear on the auxiliary cylinder, the last meshing of auxiliary drive gear has auxiliary drive gear, auxiliary drive gear with bottom driving motor's output is connected.

Through above-mentioned technical scheme, drive auxiliary drive gear carries out circumferential direction when bottom driving motor opens, and auxiliary drive gear drive carries out circumferential direction with it meshing auxiliary drive gear, and auxiliary drive gear rotates through lapping disc under the drive of auxiliary barrel, and the lapping disc and the planetary gear cooperation under the pivoted can be so that the bottom surface of work piece obtains more efficient grinding. When the grinding device is used, the rotating speeds of the bottom driving motor and the top driving motor can be changed to respectively change the rotating speeds of the upper grinding disc and the upper grinding disc so as to obtain different grinding effects.

Preferably, the top driving mechanism comprises a mandrel, a top transmission gear, a top driving gear and a limiting piece; the dabber runs through the pivot, the dabber with the pivot is rotated and is connected, the bottom protrusion of dabber in the pivot, top drive gear cover is established the bottom of dabber, the top driving gear mesh in top drive gear, the top driving gear with top driving motor's output shaft, the locating part is used for restricting go up the abrasive disc with relative rotation between the dabber.

Through above-mentioned technical scheme, carry out circumferential direction through top driving motor drive top driving gear, top driving gear drive with it meshing carries out circumferential direction, and top driving gear drive dabber carries out circumferential direction, because locating part has restricted the relative rotation between lapping disc and the dabber, so the dabber can drive the runner stone and carry out circumferential direction for carry out the abrasive polishing to the top surface of work piece.

Preferably, a through hole is arranged in the center of the upper grinding disc in a penetrating manner; the locating part includes spacing seat, spacing support and stopper, the spacing groove has been seted up on the periphery wall of spacing seat, the spacing groove is followed spacing seat axial extension, spacing support sets up the top surface department of going up the abrasive disc, just spacing support with the spacing groove is relative, the stopper articulate in spacing support works as the stopper changes over to extremely during the spacing inslot portion, the stopper contradict in the inner wall of spacing groove.

Through above-mentioned technical scheme, when last abrasive disc moved to the top surface contact with the work piece under elevating system's drive, spacing seat passed from the through-hole, and control stopper rotated around spacing support this moment for the tip of stopper changes over to spacing inslot portion, and stopper and spacing inslot cooperation restrict last abrasive disc and the relative rotation between the dabber.

Preferably, the end part of the limiting block, which is close to the limiting seat, is provided with a round angle.

Through the technical scheme, the process that the round angle arranged on the end part of the limiting block can be turned over to the limiting groove by the limiting block becomes more smooth, so that the end part of the limiting block is not easy to wear.

Preferably, a sleeve opposite to the mandrel is arranged on the frame, and the bottom of the mandrel extends into the sleeve.

Through above-mentioned technical scheme, set up the sleeve in the frame and can support the bottom of dabber for the dabber is difficult for taking place to deflect.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a partial sectional view of the embodiment.

Reference numerals: 1. a frame; 2. a bottom grinding device; 21. a lower grinding disc; 22. a planetary gear; 23. a sun gear; 24. a bottom drive mechanism; 241. a rotating shaft; 242. a bottom drive gear; 243. a bottom drive gear; 244. a bottom drive motor; 3. a top grinding device; 31. a lifting mechanism; 32. an upper grinding disc; 33. a top drive mechanism; 331. a mandrel; 332. a top drive gear; 333. a top drive gear; 334. a top drive motor; 335. a limiting member; 3351. a limiting seat; 3352. a limiting bracket; 3353. a limiting block; 4. a placement groove; 5. an inner gear ring; 6. placing holes; 7. an auxiliary cylinder; 8. an auxiliary transmission gear; 9. an auxiliary drive gear; 10. a through hole; 11. a limiting groove; 12. a sleeve.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

A double-side grinder, as shown in FIG. 1, includes a frame 1, a bottom grinder 2 provided on the frame 1, and a top grinder 3 provided on the frame 1.

A placing groove 4 with a circular notch is formed in the frame 1, and an inner gear ring 5 is fixed at the inner groove wall of the placing groove 4.

As shown in fig. 1 and 3, the bottom grinding apparatus 2 includes a lower grinding disk 21, a planetary gear 22, a sun gear 23, and a bottom drive mechanism 24. Lower grinding disk 21 sets up inside standing groove 4, and the central axis of lower grinding disk 21 and the coincidence of the central axis of standing groove 4, and leave the clearance between lower grinding disk 21 and the standing groove 4 inner tank wall. The number of the planetary gears 22 is several and is circumferentially and uniformly distributed with the axis of the lower grinding disk 21 as a center, and in the present embodiment, the number of the planetary gears 22 is three. The sun gear 23 is disposed inside the placing groove 4, and the central axis of the sun gear 23 coincides with the central axis of the lower grinding disk 21, and in the present embodiment, the sun gear 23 simultaneously meshes with the three planetary gears 22. The bottom drive mechanism 24 is used to drive the planetary gears 22 in forward rotation.

The bottom drive mechanism 24 includes a shaft 241, a bottom drive gear 242, a bottom drive gear 243, and a bottom drive motor 244. The rotating shaft 241 is penetratingly disposed in the frame 1, and a top of the rotating shaft 241 extends into the placing groove 4 and is coaxially fixed with the sun gear 23. The bottom transmission gears 242 are coaxially fixed at the bottom of the rotating shaft 241, the number of the bottom transmission gears 242 is several, the bottom transmission gears 242 are uniformly distributed along the axial direction of the rotating shaft 241, and the reference circle diameters of the bottom transmission gears 242 are different. One bottom drive gear 243 is provided, and the bottom drive gear 243 is engaged with a bottom drive gear 242 thereof. The bottom driving motor 244 is disposed on the frame 1, and the output end of the bottom driving motor 244 is connected to a speed reducer, and the output end of the speed reducer is connected to the bottom driving gear 243.

An auxiliary cylinder 7 is sleeved on the rotating shaft 241, the top of the auxiliary cylinder 7 penetrates through the rack 1 and is coaxially connected with the lower grinding disc 21, an auxiliary transmission gear 8 is coaxially fixed at the bottom of the auxiliary cylinder 7, an auxiliary driving gear 9 is meshed at the edge of the auxiliary transmission gear 8, and the auxiliary driving gear 9 is connected with a speed reducer connected to the bottom driving motor 244.

The top grinding device 3 includes a lifting mechanism 31, an upper grinding disk 32, and a top drive mechanism 33. The lifting mechanism 31 is a cylinder in this embodiment, the cylinder is vertically disposed, and a piston rod of the cylinder extends to one side of the placing groove 4. The upper grinding disc 32 is rotatably connected to the output end of the lifting mechanism 31, and a through hole 10 is formed in the center of the upper grinding disc 32. The top drive mechanism 33 is used for driving the upper grinding disk 32 to rotate circumferentially.

The top drive mechanism 33 includes a spindle 331, a top drive gear 332, a top drive gear 333, a top drive motor 334, and a stop 335. The spindle 331 is coaxially disposed inside the rotating shaft 241 in a penetrating manner, the spindle 331 can rotate circumferentially inside the rotating shaft 241, and the bottom of the spindle 331 protrudes from the rotating shaft 241. The top drive gear 332 is coaxially fixed to the bottom of the spindle 331. The top drive gear 333 is connected to a drive gear 332. The output end of the top drive motor 334 is connected to a speed reducer, the output end of which is coaxially connected to the top drive gear 333. The limiting member 335 is used for limiting the relative rotation between the upper grinding plate 32 and the spindle 331.

As shown in fig. 1, 2 and 3, the limiting member 335 includes a limiting seat 3351, a limiting support 3352 and a limiting block 3353. Spacing seat 3351 is fixed at the top of dabber 331, offers the spacing groove 11 along spacing seat 3351 axial extension on spacing seat 3351's the lateral wall, and the figure of spacing groove 11 is a plurality of, and a plurality of spacing grooves 11 use spacing seat 3351's axis as central circumference evenly distributed. The limiting supports 3352 are fixed on the top surface of the upper grinding disc 32, the number of the limiting supports 3352 is the same as that of the limiting grooves 11, and the limiting supports 3352 correspond to the limiting grooves 11 one to one. The number of the limiting blocks 3353 is the same as that of the limiting supports 3352, the limiting blocks 3353 are hinged to the limiting seats 3351 in a one-to-one correspondence mode, and rounded corners are arranged at the end portions, close to the center of the upper grinding disc 32, of the limiting blocks 3353. When control stopper 3353 rotated around the articulated shaft, the tip that stopper 3353 has the fillet can rotate to spacing groove 11 in, and stopper 3353's lateral wall can support tightly with the interior cell wall of spacing groove 11 for go up abrasive disc 32 and the difficult relative rotation that takes place of spacing seat 3351.

As shown in fig. 1 and 3, the frame 1 is further provided with a sleeve 12, the top of the sleeve 12 is sleeved on the mandrel 331, and the sleeve 12 is used for supporting and limiting the mandrel 331, so that the mandrel 331 is not easy to tilt in the using process.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A double-sided lapping machine is characterized in that: comprises a frame (1), a bottom grinding device (2) and a top grinding device (3);

a placing groove (4) is formed in the rack (1), and an inner gear ring (5) is arranged at the inner groove wall of the placing groove (4);

the bottom grinding device (2) comprises a lower grinding disc (21) arranged in the placing groove (4), a planetary gear (22) arranged on the lower grinding disc (21), a sun gear (23) arranged at the center of the placing groove (4) and meshed with the planetary gear (22), and a bottom driving mechanism (24) used for driving the sun gear (23) to rotate circumferentially, wherein the planetary gear (22) is meshed with the inner gear ring (5), a placing hole (6) is formed in the planetary gear (22) in a penetrating mode, and the bottom driving mechanism (24) comprises a bottom driving motor (244) used for providing power;

the top grinding device (3) comprises a lifting mechanism (31) arranged on the rack (1), an upper grinding disc (32) arranged on the output end of the lifting mechanism (31), and a top driving mechanism (33) used for driving the upper grinding disc (32) to rotate in the circumferential direction, wherein the lifting mechanism (31) is used for driving the upper grinding disc (32) to be close to or far away from the placing groove (4), and the top driving mechanism (33) comprises a top driving motor (334) used for providing power;

the bottom driving mechanism (24) comprises a rotating shaft (241) rotatably connected to the rack (1), a bottom transmission gear (242) sleeved on the rotating shaft (241), and a bottom driving gear (243) meshed with the bottom transmission gear (242), the top of the rotating shaft (241) penetrates through the rack (1) and extends into the placing groove (4), the sun gear (23) is coaxially arranged on the top of the rotating shaft (241), and the bottom driving gear (243) is connected with an output shaft of the bottom driving motor (244);

the number of the bottom transmission gears (242) is a plurality, the bottom transmission gears are distributed along the axial direction of the rotating shaft (241), and the reference circle diameters of the bottom transmission gears (242) are different.

2. The double side grinder as set forth in claim 1, wherein: the cover is equipped with an auxiliary cylinder (7) on pivot (241), the top of auxiliary cylinder (7) is connected on lapping disc (21) down, the cover is equipped with auxiliary drive gear (8) on auxiliary cylinder (7), the meshing has auxiliary driving gear (9) on auxiliary drive gear (8), auxiliary driving gear (9) with the output of bottom driving motor (244) is connected.

3. The double side grinder as set forth in claim 1, wherein: the top driving mechanism (33) comprises a mandrel (331), a top transmission gear (332), a top driving gear (333) and a limiting piece (335); the grinding machine is characterized in that the core shaft (331) penetrates through the rotating shaft (241), the core shaft (331) is rotatably connected with the rotating shaft (241), the bottom of the core shaft (331) protrudes out of the rotating shaft (241), the top transmission gear (332) is sleeved at the bottom of the core shaft (331), the top driving gear (333) is meshed with the top transmission gear (332), the top driving gear (333) is connected with an output shaft of the top driving motor (334), and the limiting piece (335) is used for limiting the relative rotation between the upper grinding disc (32) and the core shaft (331).

4. A double side grinder as claimed in claim 3, wherein: a through hole (10) is arranged at the center of the upper grinding disc (32) in a penetrating way; locating part (335) is including spacing seat (3351), spacing support (3352) and stopper (3353), spacing groove (11) have been seted up on the periphery wall of spacing seat (3351), spacing groove (11) are followed spacing seat (3351) axial extension, spacing support (3352) set up go up the top surface department of abrasive disc (32), just spacing support (3352) with spacing groove (11) are relative, stopper (3353) articulate in spacing support (3352), work as stopper (3353) turn over to extremely when spacing groove (11) are inside, stopper (3353) contradict in the inner wall of spacing groove (11).

5. The double side grinder of claim 4, wherein: the end part of the limiting block (3353) close to the limiting seat (3351) is provided with a round angle.

6. A double side grinder as claimed in claim 3, wherein: the machine frame (1) is provided with a sleeve (12) opposite to the core shaft (331), and the bottom of the core shaft (331) extends into the sleeve (12).