A polishing and grinding machine for spherical shell workpieces

Abstract

The present invention belongs to the technical field of polishing and grinding, and discloses a polishing and grinding machine for spherical shell workpieces, including a support plate, and further including a driving motor, the driving motor is arranged on the top of the support plate through a bracket; a planetary gear set, 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 it is fixed on the output shaft of the driving motor. Through the cooperation of the planetary gear set, the present invention can, under the drive of the output shaft of the driving motor, make the rotating directions of the support mechanism and the first polishing mechanism opposite and the rotation speeds different, 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 the grinding effect. And the provided transmission mechanism can drive the first polishing mechanism to perform reciprocating motion along its axial direction during movement, so as to change the grinding area of the workpiece and avoid dead corners, achieving a better grinding effect.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing and grinding, and specifically relates to a polishing and grinding machine for spherical shell workpieces. Background Art

[0002] In the processing of spheres, grinding and polishing is a common and important process. At present, there are mainly two ways of polishing spheres: manual polishing and machine polishing. Manual polishing is mainly for spheres with low precision requirements. Machine polishing mainly rotates the sphere clamped by a fixture and grinds it on the side circumference through a polishing disc. However, this will cause blind spots, that is, the clamping area, which needs to be polished separately later. But in this way, the texture and luster of the separately polished area will be different from those of the other areas, affecting the consistency. Therefore, improvements are made to solve the above problems. Summary of the Invention

[0003] To solve the problem in the above background art that machine polishing mainly rotates the sphere clamped by a fixture and grinds it on the side circumference through a polishing disc, but this will cause blind spots, that is, the clamping area, which needs to be polished separately later. But in this way, the texture and luster of the separately polished area will be different from those of the other areas, affecting the consistency, the invention provides a polishing and grinding machine for spherical shell workpieces.

[0004] To achieve the above object, the invention provides the following technical solution: A polishing and grinding machine for spherical shell workpieces, including a support plate, and also including,

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

[0006] A planetary gear set, 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 it is fixed on the output shaft of the driving motor;

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

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

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

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

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

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

[0013] A transmission mechanism, which is arranged on the top of the support plate and is used to drive the first polishing mechanism to reciprocate axially.

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

[0015] Preferably, the support mechanism includes a connecting ring and a positioning ring. The positioning ring is fixedly installed at one end of the connecting ring. The positioning ring is slidably connected to the inner wall of the outer polishing chamber and 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 installed on the surface of the connecting ring. The movable column is piston-connected to the inside of the connecting column. The inner polishing plate is fixedly installed at one end of the movable column protruding from the connecting column. The spring is sleeved on the surface of the movable column and is 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 rotationally connected to one end of the adjusting knob and is 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 ball-joint connected to the inner polishing plate.

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

[0019] Preferably, the limiting mechanism includes a limiting ring and a movable stop bar. The limiting ring is fixedly connected to the connecting ring. The movable stop bar is piston-connected to the outside of the limiting ring. The limiting ring is connected to the output pipe of the fan through a sealed bearing.

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

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. Through the cooperation of the planetary gear set, the present invention can, under the drive of the output shaft of the driving motor, make the rotation directions of the support mechanism and the first polishing mechanism opposite and the rotation speeds different, 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 the grinding effect. Moreover, the provided transmission mechanism can drive the first polishing mechanism to perform reciprocating motion along its axis during movement, thereby changing the grinding area of the workpiece and avoiding dead corners, achieving a better grinding effect.

[0023] 2. The partition plate provided in the present invention can separate different groups of workpieces. The inner polishing plate is connected by the telescopic block. When the position of the inner polishing plate changes, the movable plate is driven to change its position through the telescopic block. Thus, by rotating the adjustment knob to drive the stopper to change its position, when the movable plate contacts the stopper after grinding to a certain extent, 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. Moreover, the provided multiple positioning mechanisms can simultaneously grind workpieces with different requirements.

[0024] 3. Through the provided exhaust pipe, when the fan injects gas into the connecting ring, the gas can be blown onto the inner wall of the outer polishing chamber through the exhaust pipe, thereby blowing off the debris adhering to the inside of the outer polishing chamber generated by grinding, and further ensuring the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0029] Figure 5 This is the structural breakdown diagram of the positioning mechanism of the present invention;

[0030] Figure 6 This is the structural breakdown diagram of the second polishing mechanism of the present invention;

[0031] Figure 7 This is the 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, stop block; 705, positioning block; 706, telescopic block; 71, exhaust pipe; 8, limiting mechanism; 801, limiting ring; 802, movable stop bar; 9, fan; 10, transmission mechanism; 1001, chain; 1002, first helical gear; 1003, second helical gear; 1004, first movable rod; 1005, second movable rod; 1006, guide block. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figures 1 to 7 shown, the present invention provides a polishing and grinding machine for spherical shell workpieces, including a support plate 1, and further including,

[0035] A drive motor 2, and the drive motor 2 is arranged on the top of the support plate 1 through a bracket;

[0036] A planetary gear set 3, 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 it is fixed on the output shaft of the drive motor 2;

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

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

[0039] The second polishing mechanism 6 is annularly arranged outside the support mechanism 5 and is used to cooperate with the first polishing mechanism 4 to place the spherical shell workpiece;

[0040] The positioning mechanism 7 is annularly arranged outside the support mechanism 5 and is used to limit the second polishing mechanism 6;

[0041] The limiting mechanism 8 is arranged on one side of the support mechanism 5 and is used to limit the workpiece;

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

[0043] The 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 axially.

[0044] With the above scheme: through the cooperation of the planetary gear set 3, under the drive of the output shaft of the drive motor 2, the rotation directions of the support mechanism 5 and the first polishing mechanism 4 are opposite and the rotation speeds are different, so that the spherical shell workpiece located between the second polishing mechanism 6 and the first polishing mechanism 4 generates friction due to their different rotation speeds, thereby achieving the grinding effect. And the arranged transmission mechanism 10 can drive the first polishing mechanism 4 to reciprocate axially during the movement, so as to change the grinding area of the workpiece and avoid dead corners, achieving a better grinding effect.

[0045] As Figure 3 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 rotationally connected to the surface of the outer polishing chamber 401. 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] With the above scheme: the planet carrier in the planetary gear set 3 limits the outer gear ring. The arranged guide rod 403 passes through the outer gear ring, which can ensure that the outer polishing chamber 401 still rotates under the drive of the outer gear ring while being driven by the guide ring 402 to move axially along it, so as to ensure the grinding effect on the workpiece.

[0047] As Figure 4 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 drive motor 2.

[0048] Adopting the above solution: The positioning ring 502 provided can 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 inside of the connecting ring 501 provided is hollow, and the gas output by the blower 9 can enter the inside of the connecting ring 501 to achieve pressurization, ensuring that the inner polishing plate 601 presses the workpiece under pressure to ensure the polishing effect.

[0049] As Figure 6 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 installed 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 installed at one end of the movable column 603 protruding from the connecting column 602. The spring 604 is sleeved on the surface of the movable column 603 and is located inside the connecting column 602.

[0050] Adopting the above solution: The overall shape of the inner polishing plate 601 provided is trapezoidal, 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. When the blower 9 injects gas, the movable column 603 can be moved outward from the connecting column 602 under pressure. When not under force, the spring 604 makes the movable column 603 return to the inside of the connecting column 602 through its elastic force, and the pressure can be balanced by injecting gas.

[0051] As Figure 5 shown, the positioning mechanism 7 includes a partition plate 701, a movable plate 702, an adjustment 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 adjustment knob 703 is threadedly connected to the positioning block 705. The stopper 704 is rotatably connected to one end of the adjustment knob 703 and is 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 ball-jointed to the inner polishing plate 601.

[0052] Adopting the above solution: The partition plate 701 provided can separate different groups of workpieces, and the inner polishing plate 601 is connected through the telescopic block 706. When the position of the inner polishing plate 601 changes, the movable plate 702 is driven to change its position through the telescopic block 706. Thus, by rotating the adjustment knob 703 to drive the stopper 704 to change its position, when the polishing reaches a certain degree, the movable plate 702 contacts the stopper 704. At this time, the inner polishing plate 601 will no longer apply pressure to the workpiece, that is, the polishing of the workpiece stops, achieving the effect of controlling the polishing thickness. And the multiple groups of positioning mechanisms 7 provided can simultaneously polish workpieces with different requirements.

[0053] AsFigure 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] During use, first place the workpiece to be polished in the area between the inner polishing plate 601 and the outer polishing chamber 401. Then rotate the adjustment knob 703 to adjust the position of the stop block 704. After adjustment, start the blower 9 to inject gas into the inner parts of the limit ring 801 and the connecting ring 501. Under the action of the air pressure, the movable bar 802 moves outward to the outside of the limit ring 801 to intercept the side of the inner polishing plate 601 and prevent the workpiece from falling. Synchronously, the air pressure can also drive the movable column 603 to move outward to the outside of the connecting column 602, so that the inner polishing plate 601 presses the workpiece to contact the inner wall of the outer polishing chamber 401;

[0061] Start the drive motor 2, and drive the sun gear of the planetary gear set 3 to rotate through its output shaft. The sun gear drives the outer gear ring to rotate through the planetary gears, so as to achieve the purpose of the axial rotation of the outer polishing chamber 401. The output shaft can also drive the entire support mechanism 5 to rotate. At this time, driven by the connecting ring 501, the inner polishing plate 601 and the outer polishing chamber 401 rotate in opposite directions with a differential speed, so as to achieve the polishing of the workpiece;

[0062] During the process of the blower 9 injecting gas, the gas blows against the inner wall of the outer polishing chamber 401 through the partition plate 701, and blows off the adhered debris;

[0063] When the movable plate 702 contacts the stop block 704, the polishing is completed. The drive motor 2 and the blower 9 can be stopped, and the polished workpiece can be taken out by manually pushing the movable bar 802.

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

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing and grinding machine for spherical shell workpieces, comprising a support plate (1), characterized in that: It further includes a driving motor (2), which is arranged on the top of the support plate (1) through a bracket; a planetary gear set (3), 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 it is fixed on the output shaft of the driving motor (2); a first polishing mechanism (4), which is arranged above the support plate (1) and connected to the ring gear in the planetary gear set (3); a support mechanism (5), which is arranged inside the first polishing mechanism (4); a second polishing mechanism (6), which is annularly arranged outside the support mechanism (5) and is used to cooperate with the first polishing mechanism (4) to place the spherical shell workpiece; a positioning mechanism (7), which is annularly arranged outside the support mechanism (5) and is used to limit the second polishing mechanism (6); a limiting mechanism (8), which is arranged on one side of the support mechanism (5) to limit the workpiece; a blower (9), which is arranged on the top of the support plate (1) and is rotationally connected to the limiting mechanism (8) to input gas into the support mechanism (5); a transmission mechanism (10), which is arranged on the top of the support plate (1) and is used to drive the first polishing mechanism (4) to reciprocate axially; 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 installed on the surface of the connecting ring (501). The movable column (603) is piston-connected inside the connecting column (602). The inner polishing plate (601) is fixedly installed at one end of the movable column (603) protruding from the connecting column (602). The spring (604) is sleeved on the surface of the movable column (603) and is located inside the connecting column (602); The positioning mechanism (7) includes a partition plate (701), a movable plate (702), an adjusting knob (703), a stop block (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 inside 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 stop block (704) is rotationally connected to one end of the adjusting knob (703) and is movably connected inside 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 ball-joint connected to the inner polishing plate (601).

2. The ball housing 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 an 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: An exhaust pipe (71) is also installed on the surface of the partition plate (701), and the partition plate (701) is connected to the interior of the connecting ring (501).

5. 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.

6. The spherical shell workpiece polishing and grinding machine according to claim 2, wherein: 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 rotatably connected to a 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 mounted on the top of the supporting plate (1) and 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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