Polishing and grinding machine for spherical shell workpiece

Abstract

The invention belongs to the technical field of polishing and grinding, and discloses a spherical shell workpiece polishing and grinding machine which comprises a supporting plate and further comprises a driving motor, and the driving motor is arranged at the top of the supporting plate through a support. A planet carrier in the planetary gear set is fixedly connected with the top of the supporting plate through a support, and a sun gear in the planet carrier is fixed to an output shaft of the driving motor. Through cooperation of a planetary gear set, under driving of the output shaft of the driving motor, the supporting mechanism and the first polishing mechanism are opposite in rotating direction and different in rotating speed, and therefore a spherical shell workpiece located between the second polishing mechanism and the first polishing mechanism generates friction due to the different rotating speeds of the spherical shell workpiece; and the arranged transmission mechanism can drive the first polishing mechanism to do reciprocating motion in the axial direction of the first polishing mechanism in the movement process, so that the workpiece polishing area is changed, no dead angle is generated, and the good polishing effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing and grinding, in particular to a ball shell workpiece polishing and grinding machine. Background Art

[0002] In ball processing, grinding and polishing is a common and important process. Currently, there are two main ways to polish a ball: manual polishing and machine polishing. Manual polishing is mainly for balls with low precision requirements. Machine polishing mainly uses a fixture to clamp the ball for rotation and polishes the side circumference with a polishing disc. However, this will create a blind spot, that is, the clamping area, which needs to be polished separately later. However, this will make the texture and gloss of the separately polished area different from that of the rest of the area, affecting consistency. Therefore, improvements are made to the above problems. Summary of the invention

[0003] In order to solve the problem that the machine polishing proposed in the above background technology is mainly to rotate the sphere by clamping the sphere with a clamp and polishing the side circumference with a polishing sheet, but this will cause a blind spot, i.e. the clamping area, which needs to be polished separately later, but this will make the texture and gloss of the separately polished area different from those of the remaining areas, affecting the consistency, the present invention provides a spherical shell workpiece polishing and grinding machine.

[0004] To achieve the above object, the present invention provides the following technical solution: a ball shell workpiece polishing and grinding machine, comprising a support plate, and also comprising:

[0005] A driving motor, wherein the driving motor is arranged on the top of the supporting plate through a bracket;

[0006] A planetary gear set, wherein the planet carrier in the planetary gear set is fixedly connected to the top of the support plate through a bracket, and the sun gear inside the planet carrier is fixed to the output shaft of the drive motor;

[0007] A first polishing mechanism, which is disposed above the support plate and connected to the outer gear ring in the planetary gear set;

[0008] A supporting mechanism, wherein the supporting mechanism is arranged inside the first polishing mechanism;

[0009] A second polishing mechanism, which is annularly arranged outside the supporting mechanism and is used to cooperate with the first polishing mechanism to place the ball shell workpiece;

[0010] A positioning mechanism, the positioning mechanism is annularly arranged outside the supporting mechanism and is used to limit the position of the second polishing mechanism;

[0011] A limiting mechanism, which is arranged on one side of the supporting mechanism and is used to limit the workpiece;

[0012] A fan, which is arranged on the top of the support plate and is rotatably connected to the limiting mechanism to input gas into the support mechanism;

[0013] The transmission mechanism is arranged on the top of the support plate and is used to drive the first polishing mechanism to reciprocate along the axial direction.

[0014] Preferably, the first polishing mechanism includes an outer polishing chamber, a guide ring and a guide rod, the guide ring is rotatably connected to the surface of the outer polishing chamber, the guide rod is annularly installed on one side of the outer polishing chamber and the guide rod is slidably connected to the outer gear ring in the planetary gear set.

[0015] Preferably, the supporting mechanism comprises a connecting ring and a positioning ring, wherein the positioning ring is fixedly mounted on one end of the connecting ring, the positioning ring is slidably connected to the inner wall of the outer polishing chamber, and the positioning ring is fixedly connected to the output shaft of the driving motor.

[0016] Preferably, the second polishing mechanism includes an inner polishing plate, a connecting column, a movable column and a spring, the connecting column is fixedly mounted on the surface of the connecting ring, the movable column piston is connected to the inside of the connecting column, the inner polishing plate is fixedly mounted on one end of the movable column protruding from the connecting column, and the spring is sleeved on the surface of the movable column and located inside the connecting column.

[0017] Preferably, the positioning mechanism includes a partition plate, a movable plate, an adjusting knob, a stop block, a positioning block and a telescopic block, the partition plate is fixedly connected to the connecting ring, the movable plate is movably connected to the inside of the partition plate, the positioning block is fixedly installed on one side of the partition plate, the adjusting knob is threadedly connected to the positioning block, the stop block is rotatably connected to one end of the adjusting knob and movably connected to the inside of the partition plate, the fixed end of the telescopic block is fixedly connected to the movable plate and the movable end is connected to the ball shaft of the inner polishing plate.

[0018] Preferably, an exhaust pipe is also installed on the surface of the partition plate, and the partition plate is connected to the inside of the connecting ring.

[0019] Preferably, the limiting mechanism comprises a limiting ring and a movable stop bar, the limiting ring is fixedly connected to the connecting ring, the movable stop bar piston is connected to the outer side of the limiting ring, and the limiting ring is connected to the output pipeline of the fan via a sealing bearing.

[0020] Preferably, the transmission mechanism includes a chain, a first bevel gear, a second bevel gear, a first movable rod, a second movable rod and a guide block, the first bevel gear is connected to the output shaft of the driving motor through the chain, the first bevel gear is rotatably connected to the bracket of the driving motor, the second bevel gear is rotatably connected to the surface of the support plate and meshes with the first bevel gear, the first movable rod is eccentrically rotatably connected to the surface of the second bevel gear, the second movable rod is hinged to the first movable rod, the guide block is fixedly installed on the top of the support plate and is slidably connected to the second movable rod, and the second movable rod is fixedly connected to the guide ring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can cooperate with the planetary gear set and, under the drive of the output shaft of the driving motor, make the support mechanism and the first polishing mechanism rotate in opposite directions and at different speeds, so that the spherical shell workpiece located between the second polishing mechanism and the first polishing mechanism generates friction due to the different rotation speeds of the two, thereby achieving a polishing effect, and the transmission mechanism can drive the first polishing mechanism to reciprocate along its axial direction during movement, thereby changing the polishing area of ​​the workpiece, avoiding dead angles, and achieving a better polishing effect.

[0023] 2. The present invention can separate different groups of workpieces through the partition plate, and connect the inner polishing plate through the telescopic block. When the inner polishing plate changes position, the movable plate is driven to change position through the telescopic block, thereby driving the stop block to change position by turning the adjusting knob, so that after grinding to a certain extent, the movable plate contacts the stop block. At this time, the inner polishing plate will no longer apply pressure to the workpiece, that is, the grinding of the workpiece stops, achieving the effect of controlling the grinding thickness, and the multiple groups of positioning mechanisms set up can realize the simultaneous grinding of workpieces with different requirements.

[0024] 3. The exhaust pipe of the present invention is set up. When the fan injects gas into the connecting ring, the gas can be blown to the inner wall of the outer polishing chamber through the exhaust pipe, so as to blow off the debris adhered to the inner part of the outer polishing chamber generated by grinding, thereby ensuring the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 is a schematic structural diagram of a planetary gear set of the present invention;

[0027] Figure 3 It is a structural breakdown diagram of the first polishing mechanism of the present invention;

[0028] Figure 4 It is a structural breakdown diagram of the support mechanism of the present invention;

[0029] Figure 5 It is a structural subdivision diagram of the positioning mechanism of the present invention;

[0030] Figure 6 It is a structural subdivision diagram of the second polishing mechanism of the present invention;

[0031] Figure 7 It is a structural breakdown diagram of the transmission mechanism of the present invention.

[0032] In the figure: 1. support plate; 2. drive motor; 3. planetary gear set; 4. first polishing mechanism; 401. outer polishing chamber; 402. guide ring; 403. guide rod; 5. support mechanism; 501. connecting ring; 502. positioning ring; 6. second polishing mechanism; 601. inner polishing plate; 602. connecting column; 603. movable column; 604. spring; 7. positioning mechanism; 701. partition plate; 702. movable plate; 703. adjusting knob; 704. stopper; 705. positioning block; 706. telescopic block; 71. exhaust pipe; 8. limiting mechanism; 801. limiting ring; 802. movable stopper; 9. fan; 10. transmission mechanism; 1001. chain; 1002. first bevel gear; 1003. second bevel gear; 1004. first movable rod; 1005. second movable rod; 1006. guide block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 7 As shown, the present invention provides a ball shell workpiece polishing and grinding machine, including a support plate 1, and also including:

[0035] A driving motor 2, which is arranged on the top of the supporting plate 1 through a bracket;

[0036] A planetary gear set 3, wherein the planet carrier in the planetary gear set 3 is fixedly connected to the top of the support plate 1 through a bracket, and the sun gear inside the planet carrier is fixed to the output shaft of the drive motor 2;

[0037] A first polishing mechanism 4, which is disposed above the support plate 1 and connected to the outer gear ring in the planetary gear set 3;

[0038] A supporting mechanism 5, which is arranged inside the first polishing mechanism 4;

[0039] A second polishing mechanism 6, which is annularly arranged outside the supporting mechanism 5 and is used to cooperate with the first polishing mechanism 4 to place the ball shell workpiece;

[0040] A positioning mechanism 7, which is annularly arranged outside the supporting mechanism 5 and is used to limit the position of the second polishing mechanism 6;

[0041] A limiting mechanism 8, which is arranged on one side of the supporting mechanism 5 and is used to limit the workpiece;

[0042] The fan 9 is arranged on the top of the support plate 1 and is rotatably connected with the limiting mechanism 8 to input gas into the support mechanism 5;

[0043] The transmission mechanism 10 is disposed on the top of the support plate 1 and is used to drive the first polishing mechanism 4 to reciprocate along the axial direction.

[0044] By adopting the above scheme: through the cooperation of the planetary gear set 3, under the drive of the output shaft of the driving motor 2, the support mechanism 5 and the first polishing mechanism 4 can rotate in opposite directions and at different speeds, so that the spherical shell workpiece located between the second polishing mechanism 6 and the first polishing mechanism 4 produces friction due to the different rotation speeds of the two, thereby achieving the grinding effect, and the transmission mechanism 10 set can drive the first polishing mechanism 4 to reciprocate along its axial direction during movement, thereby changing the grinding area of ​​the workpiece, without generating dead angles, and achieving a better grinding effect.

[0045] like Figure 3 As shown, the first polishing mechanism 4 includes an outer polishing chamber 401, a guide ring 402 and a guide rod 403. The guide ring 402 is rotatably connected to the surface of the outer polishing chamber 401, and the guide rod 403 is annularly installed on one side of the outer polishing chamber 401 and the guide rod 403 is slidably connected to the outer gear ring in the planetary gear set 3.

[0046] The above scheme is adopted: the planetary carrier in the planetary gear set 3 limits the outer ring gear, and the guide rod 403 is set to pass through the outer ring gear, which can ensure that the outer polishing chamber 401 is still driven by the outer ring gear to rotate when it is driven by the guide ring 402 to move along its axial direction, thereby ensuring the grinding effect of the workpiece.

[0047] like Figure 4 As shown, the support mechanism 5 includes a connecting ring 501 and a positioning ring 502 . The positioning ring 502 is fixedly installed at one end of the connecting ring 501 . The positioning ring 502 is slidably connected to the inner wall of the outer polishing chamber 401 . The positioning ring 502 is fixedly connected to the output shaft of the driving motor 2 .

[0048] The above scheme is adopted: the positioning ring 502 is set to block one side of the inner polishing plate 601 to prevent the workpiece from falling, and the outer periphery of the positioning ring 502 is provided with balls to reduce the friction during rotation. The interior of the connecting ring 501 is set to be hollow, and the gas output by the fan 9 can enter the interior of the connecting ring 501 to achieve pressurization, thereby ensuring that the inner polishing plate 601 squeezes the workpiece under pressure to ensure the polishing effect.

[0049] like Figure 6 As shown, the second polishing mechanism 6 includes an inner polishing plate 601, a connecting column 602, a movable column 603 and a spring 604. The connecting column 602 is fixedly mounted on the surface of the connecting ring 501, the movable column 603 is piston-connected to the inside of the connecting column 602, the inner polishing plate 601 is fixedly mounted on one end of the movable column 603 protruding from the connecting column 602, and the spring 604 is sleeved on the surface of the movable column 603 and located inside the connecting column 602.

[0050] The above scheme is adopted: the inner polishing plate 601 is set to be trapezoidal as a whole, but the side close to the outer polishing chamber 401 is concave for placing the workpiece, the connecting column 602 is connected to the inside of the connecting ring 501, and when the fan 9 injects air, the pressure can move the movable column 603 to the outside of the connecting column 602, and when there is no force, the spring 604 uses the elastic force to make the movable column 603 return to the inside of the connecting column 602, and the pressure can be balanced by air injection.

[0051] like Figure 5 As shown, the positioning mechanism 7 includes a partition plate 701, a movable plate 702, an adjusting knob 703, a stopper 704, a positioning block 705 and a telescopic block 706. The partition plate 701 is fixedly connected to the connecting ring 501, the movable plate 702 is movably connected to the inside of the partition plate 701, the positioning block 705 is fixedly installed on one side of the partition plate 701, the adjusting knob 703 is threadedly connected to the positioning block 705, the stopper 704 is rotatably connected to one end of the adjusting knob 703 and movably connected to the inside of the partition plate 701, the fixed end of the telescopic block 706 is fixedly connected to the movable plate 702 and the movable end is connected to the ball shaft of the inner polishing plate 601.

[0052] The above scheme is adopted: the partition plate 701 is set to separate different groups of workpieces, and is connected to the inner polishing plate 601 through the telescopic block 706. When the inner polishing plate 601 changes its position, the telescopic block 706 drives the movable plate 702 to change its position, thereby driving the stop block 704 to change its position by turning the adjusting knob 703, so that after grinding to a certain extent, the movable plate 702 contacts the stop block 704. At this time, the inner polishing plate 601 will no longer apply pressure to the workpiece, that is, the grinding of the workpiece stops, achieving the effect of controlling the grinding thickness, and the multiple groups of positioning mechanisms 7 set can realize the simultaneous grinding of workpieces with different requirements.

[0053] like Figure 5 As shown, an exhaust pipe 71 is also installed on the surface of the partition plate 701 , and the partition plate 701 is connected to the inside of the connecting ring 501 .

[0054] The above scheme is adopted: through the exhaust pipe 71, when the fan 9 injects gas into the connecting ring 501, the gas can be blown toward the inner wall of the outer polishing chamber 401 through the exhaust pipe 71, thereby blowing off the debris produced by grinding and adhering to the inside of the outer polishing chamber 401, thereby ensuring the efficiency of grinding.

[0055] like Figure 4 As shown, the limiting mechanism 8 includes a limiting ring 801 and a movable stop bar 802. The limiting ring 801 is fixedly connected to the connecting ring 501. The movable stop bar 802 is piston-connected to the outer side of the limiting ring 801. The limiting ring 801 is connected to the output pipeline of the fan 9 through a sealed bearing.

[0056] With the above solution, when the fan 9 injects gas, under the action of gas pressure, the movable baffle 802 moves outward from the inside of the limit ring 801 to intercept the other end of the inner polishing plate 601 to prevent the workpiece from falling when grinding.

[0057] like Figure 7 As shown, the transmission mechanism 10 includes a chain 1001, a first bevel gear 1002, a second bevel gear 1003, a first movable rod 1004, a second movable rod 1005 and a guide block 1006. The first bevel gear 1002 is connected to the output shaft of the driving motor 2 through the chain 1001, the first bevel gear 1002 is rotatably connected to the bracket of the driving motor 2, the second bevel gear 1003 is rotatably connected to the surface of the support plate 1 and meshes with the first bevel gear 1002, the first movable rod 1004 is eccentrically rotatably connected to the surface of the second bevel gear 1003, the second movable rod 1005 is hinged to the first movable rod 1004, the guide block 1006 is fixedly installed on the top of the support plate 1 and is slidably connected to the second movable rod 1005, and the second movable rod 1005 is fixedly connected to the guide ring 402.

[0058] The above scheme is adopted: the chain 1001, the first bevel gear 1002, the second bevel gear 1003, the first movable rod 1004, the second movable rod 1005 and the guide block 1006 are combined into a crank structure, which can change the direction of the force and achieve the purpose of driving the guide ring 402 to move back and forth. The reciprocating movement of the guide ring 402 drives the outer polishing chamber 401 to move back and forth, thereby ensuring the polishing effect.

[0059] The working principle and use process of the present invention:

[0060] When in use, first put the workpiece to be polished into the area between the inner polishing plate 601 and the outer polishing chamber 401, then turn the adjusting knob 703 to adjust the position of the stopper 704, and after adjustment, start the fan 9 to inject gas into the limiting ring 801 and the connecting ring 501. Under the action of air pressure, the movable stopper 802 moves toward the outside of the limiting ring 801 to intercept the side of the inner polishing plate 601 to prevent the workpiece from falling. At the same time, the air pressure can also drive the movable column 603 to move toward the outside of the connecting column 602, so that the inner polishing plate 601 squeezes the workpiece to contact the inner wall of the outer polishing chamber 401;

[0061] The driving motor 2 is started, and the sun gear of the planetary gear set 3 is driven to rotate through its output shaft. The sun gear drives the outer gear ring to rotate through the planetary gear, thereby achieving the purpose of axial rotation of the outer polishing chamber 401. The output shaft can also drive the supporting mechanism 5 to rotate as a whole. At this time, driven by the connecting ring 501, the inner polishing plate 601 and the outer polishing chamber 401 rotate in opposite directions and there is a differential speed, thereby achieving grinding of the workpiece;

[0062] During the gas injection process of the blower 9, the gas is blown toward the inner wall of the outer polishing chamber 401 through the partition plate 701, blowing off the adhered debris;

[0063] When the movable plate 702 contacts the stopper 704, the grinding is completed, the driving motor 2 and the fan 9 can be stopped, and the movable stopper 802 can be manually pushed to take out the grinded workpiece.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball shell workpiece polishing and grinding machine, comprising a support plate (1), characterized in that: Also includes, A drive motor (2), wherein the drive motor (2) is arranged on the top of the support plate (1) via a bracket; A planetary gear set (3), wherein a planet carrier in the planetary gear set (3) is fixedly connected to the top of the support plate (1) via a bracket, and a sun gear inside the planet carrier is fixed to an output shaft of a drive motor (2); A first polishing mechanism (4), the first polishing mechanism (4) being arranged above the support plate (1) and connected to the outer gear ring in the planetary gear set (3); A supporting mechanism (5), wherein the supporting mechanism (5) is arranged inside the first polishing mechanism (4); a second polishing mechanism (6), the second polishing mechanism (6) being arranged in an annular shape outside the supporting mechanism (5) and being used for cooperating with the first polishing mechanism (4) to place the ball shell workpiece; A positioning mechanism (7), the positioning mechanism (7) being arranged in an annular shape outside the supporting mechanism (5) and being used to limit the position of the second polishing mechanism (6); A limiting mechanism (8), wherein the limiting mechanism (8) is arranged on one side of the supporting mechanism (5) and is used to limit the workpiece; A fan (9), the fan (9) being arranged on the top of the support plate (1) and being rotatably connected to the limiting mechanism (8) to input gas into the interior of the support mechanism (5); A transmission mechanism (10) is arranged on the top of the support plate (1) and is used to drive the first polishing mechanism (4) to reciprocate along the axial direction.

2. The ball shell workpiece polishing and grinding machine according to claim 1, characterized in that: The first polishing mechanism (4) comprises an outer polishing chamber (401), a guide ring (402) and a guide rod (403); the guide ring (402) is rotatably connected to the surface of the outer polishing chamber (401); the guide rod (403) is annularly mounted on one side of the outer polishing chamber (401) and the guide rod (403) is slidably connected to the outer gear ring in the planetary gear set (3).

3. The ball shell workpiece polishing and grinding machine according to claim 2, characterized in that: The support mechanism (5) comprises a connecting ring (501) and a positioning ring (502), wherein the positioning ring (502) is fixedly mounted on one end of the connecting ring (501), the positioning ring (502) is slidably connected to the inner wall of the outer polishing chamber (401), and the positioning ring (502) is fixedly connected to the output shaft of the driving motor (2).

4. The ball shell workpiece polishing and grinding machine according to claim 3, characterized in that: The second polishing mechanism (6) comprises an inner polishing plate (601), a connecting column (602), a movable column (603) and a spring (604); the connecting column (602) is fixedly mounted on the surface of the connecting ring (501); the piston of the movable column (603) is connected to the inside of the connecting column (602); the inner polishing plate (601) is fixedly mounted on one end of the movable column (603) protruding from the connecting column (602); and the spring (604) is sleeved on the surface of the movable column (603) and is located inside the connecting column (602).

5. The ball shell workpiece polishing and grinding machine according to claim 4, characterized in that: The positioning mechanism (7) comprises a partition plate (701), a movable plate (702), an adjusting knob (703), a stopper (704), a positioning block (705) and a telescopic block (706); the partition plate (701) is fixedly connected to the connecting ring (501); the movable plate (702) is movably connected to the interior of the partition plate (701); the positioning block (705) is fixedly mounted on one side of the partition plate (701); the adjusting knob (703) is threadedly connected to the positioning block (705); the stopper (704) is rotatably connected to one end of the adjusting knob (703) and movably connected to the interior of the partition plate (701); the fixed end of the telescopic block (706) is fixedly connected to the movable plate (702) and the movable end is connected to the ball shaft of the inner polishing plate (601).

6. The ball shell workpiece polishing and grinding machine according to claim 5, characterized in that: An exhaust pipe (71) is also installed on the surface of the partition plate (701), and the partition plate (701) is connected to the inside of the connecting ring (501).

7. The ball shell workpiece polishing and grinding machine according to claim 3, characterized in that: The limiting mechanism (8) comprises a limiting ring (801) and a movable stop bar (802); the limiting ring (801) is fixedly connected to the connecting ring (501); the movable stop bar (802) has a piston connected to the outside of the limiting ring (801); and the limiting ring (801) is connected to an output pipe of the fan (9) via a sealing bearing.

8. The ball shell workpiece polishing and grinding machine according to claim 2, characterized in that: The transmission mechanism (10) comprises a chain (1001), a first bevel gear (1002), a second bevel gear (1003), a first movable rod (1004), a second movable rod (1005) and a guide block (1006); the first bevel gear (1002) is connected to the output shaft of the driving motor (2) through the chain (1001); the first bevel gear (1002) is rotationally connected to the bracket of the driving motor (2); the second bevel gear (1003) is rotationally connected to the surface of the support plate (1) and meshes with the first bevel gear (1002); the first movable rod (1004) is eccentrically rotationally connected to the surface of the second bevel gear (1003); the second movable rod (1005) is hinged to the first movable rod (1004); the guide block (1006) is fixedly installed on the top of the supporting plate (1) and is slidably connected to the second movable rod (1005); the second movable rod (1005) is fixedly connected to the guide ring (402).

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