A polishing machine

Abstract

This invention discloses a polishing machine, comprising: a grinding mechanism for grinding workpieces; a C-axis mechanism, the grinding mechanism being mounted on the C-axis mechanism and rotating under its influence; a Z-axis mechanism, the C-axis mechanism being mounted on the Z-axis mechanism and moving vertically under its influence; a product support mechanism disposed below the grinding mechanism; multiple A-axis mechanisms, multiple product mounting seats being respectively mounted on the multiple A-axis mechanisms and rotating under their influence; a B-axis mechanism, the multiple A-axis mechanisms being mounted on the B-axis mechanism and oscillating under its influence; an X-axis mechanism, the B-axis mechanism being mounted on the X-axis mechanism and moving horizontally under its influence; and a Y-axis mechanism, the X-axis mechanism being mounted on the Y-axis mechanism and moving horizontally along its direction. The polishing machine provided by this invention can achieve multi-angle, all-around grinding of irregularly shaped products, improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and in particular to a polishing machine. Background Technology

[0002] Traditional eyeglasses are made of nylon, acetate, and titanium alloy. Polishing processes include tumble grinding and manual polishing. Manual polishing has drawbacks such as poor precision and consistency, difficulty in controlling pressure manually, and low yield and efficiency. Current polishing methods using six-axis robotic arms are costly, requiring only one product at a time, resulting in extremely low efficiency and a polishing time of over 10 minutes. Existing five-axis CNC polishing machines struggle to properly polish areas such as the bridge of the nose, the curved surface of the nose pads, and corners. Summary of the Invention

[0003] The purpose of this invention is to provide a polishing machine that improves production efficiency.

[0004] Based on the above problems, the technical solution provided by the present invention is as follows:

[0005] A polishing machine, comprising:

[0006] A grinding mechanism for grinding workpieces includes a grinding bracket and several horizontal grinding components and several vertical grinding components mounted on the grinding bracket.

[0007] The grinding mechanism is mounted on the C-axis mechanism and rotates under the drive of the C-axis mechanism;

[0008] Z-axis mechanism, wherein the C-axis mechanism is mounted on the Z-axis mechanism and moves vertically under the drive of the Z-axis mechanism;

[0009] The product support mechanism, which is located below the grinding mechanism, is used to support the workpiece to be ground, and includes multiple product fixing seats arranged at intervals.

[0010] Multiple A-axis mechanisms are provided, and multiple product mounting bases are respectively mounted on the multiple A-axis mechanisms and rotate under the action of the A-axis mechanisms. Each A-axis mechanism includes an A-axis assembly that drives the workpiece to rotate, a secondary Z-axis assembly that drives the A-axis assembly to move in the vertical direction, and a secondary Y-axis assembly that drives the A-axis assembly to move in the front-back direction.

[0011] The B-axis mechanism is wherein the plurality of A-axis mechanisms are mounted on the B-axis mechanism and swing under the drive of the B-axis mechanism;

[0012] The X-axis mechanism is mounted on the X-axis mechanism and moves in the left and right directions under the drive of the X-axis mechanism;

[0013] The Y-axis mechanism is mounted on the Y-axis mechanism and moves along the front-back direction on the Y-axis mechanism.

[0014] In some embodiments, the transverse grinding assembly includes a transversely mounted first dual-head motor and two first grinding heads mounted on the first dual-head motor;

[0015] The vertical grinding assembly includes a vertically mounted second grinding motor and two second grinding heads mounted on the second grinding motor.

[0016] In some embodiments, the C-axis mechanism includes a support frame and a C-axis motor mounted on one side of the support frame, and the grinding bracket is rotatably mounted on the support frame and drivenly connected to the C-axis motor.

[0017] In some embodiments, the Z-axis mechanism includes a Z-axis bracket fixed to the frame, a first lead screw rotatably mounted on the Z-axis bracket, a first nut mounted on the first lead screw, and a first motor driving the first lead screw to rotate. The support frame is fixedly connected to the first nut and slidably connected to the Z-axis bracket via a first slide rail assembly.

[0018] In some embodiments, the product mounting base is fixedly connected to the output shaft of the A-axis assembly, and the product mounting base is detachably equipped with a product conforming fixture for fixing the workpiece to be polished.

[0019] In some embodiments, the A-axis assembly includes an A-axis base, a pressure sensor mounted on the A-axis base, an A-axis divider mounted on the pressure sensor, an A-axis motor mounted on the side of the A-axis divider, and a slip ring mounted on the output shaft of the A-axis divider. The pressure sensor can sense lateral and vertical pressure. The pressure sensor, the secondary Z-axis assembly, and the secondary Y-axis assembly are respectively signal-connected to the control unit.

[0020] In some embodiments, the secondary Z-axis assembly includes a secondary Z-axis bracket, a second lead screw rotatably mounted on the secondary Z-axis bracket, a second motor driving the second lead screw to rotate, and a second nut mounted on the second lead screw. The A-axis base is fixedly connected to the second nut and slidably connected to the secondary Z-axis bracket via a second slide rail assembly.

[0021] The secondary Y-axis assembly includes a third lead screw rotatably mounted on the B-axis mechanism, a third motor driving the third lead screw to rotate, and a third nut mounted on the third lead screw. The secondary Z-axis bracket is fixedly connected to the third nut and slidably connected to the B-axis mechanism via a third slide rail assembly.

[0022] In some embodiments, the B-axis mechanism includes a swing support, a mounting box rotatably mounted on the swing support, and a swing motor that drives the mounting box to swing. The support shaft of the mounting box is connected to the swing motor via a worm gear and roller mechanism. The plurality of A-axis mechanisms are mounted in the mounting box.

[0023] In some embodiments, the X-axis mechanism includes an X-axis bracket, a fourth lead screw rotatably mounted on the X-axis bracket, a fourth motor driving the fourth lead screw to rotate, and a fourth nut mounted on the fourth lead screw. The B-axis mechanism is fixedly connected to the fourth nut and slidably connected to the X-axis bracket via a fourth slide rail assembly.

[0024] In some embodiments, the Y-axis mechanism includes a fifth lead screw rotatably mounted on the frame, a fifth motor driving the fifth lead screw to rotate, and a fifth nut mounted on the fifth lead screw. The X-bracket is fixedly connected to the fifth nut and slidably connected to the frame via a fifth slide rail assembly.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] 1. By coordinating the C-axis, Z-axis, A-axis, B-axis, X-axis, and Y-axis mechanisms, multi-angle and all-round polishing and grinding of irregularly shaped products such as eyeglasses can be achieved, improving production efficiency and product quality.

[0027] 2. By cooperating with the pressure sensors under the secondary Z-axis assembly, secondary X-axis assembly, and A-axis assembly, the force exerted by the grinding head on the workpiece is compensated in real time, ensuring that the grinding pressure is within the set range, thereby further improving grinding accuracy and efficiency. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is one of the structural schematic diagrams of an embodiment of a polishing machine according to the present invention;

[0030] Figure 2 This is a second structural schematic diagram of an embodiment of the present invention;

[0031] Figure 3 This is a partial structural schematic diagram of an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the C-axis mechanism and the grinding mechanism in an embodiment of the present invention;

[0033] Figure 5 This is a cross-sectional structural diagram of the grinding mechanism in an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the installation structure of the A-axis mechanism in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the A-axis mechanism in an embodiment of the present invention;

[0036] Figure 8 for Figure 7 Schematic diagram of the AA section;

[0037] Figure 9 This is a cross-sectional view of the A-axis mechanism in another direction in an embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the B-axis mechanism in an embodiment of the present invention;

[0039] in:

[0040] 100. Rack;

[0041] 200. Z-axis mechanism; 201. Z-axis support; 202. First lead screw; 203. First motor; 204. First nut; 205. First slide rail assembly;

[0042] 300. C-axis mechanism; 301. Support frame; 302. C-axis motor;

[0043] 400. Grinding mechanism; 401. Grinding bracket; 402. First dual-head motor; 403. First grinding head; 404. Second dual-head motor; 405. Second grinding head;

[0044] 500. Product support mechanism; 501. Product mounting base;

[0045] 600. B-axis mechanism; 601. Swing support; 602. Mounting housing; 603. Swing motor; 604. Worm gear; 605. First transmission gear; 606. Second transmission gear; 607. Roller;

[0046] 700, A-axis mechanism; 701, A-axis assembly; 701a, A-axis base; 701b, pressure sensor; 701c, A-axis divider; 701d, A-axis motor; 701e, air slip ring; 702, secondary Z-axis assembly; 702a, secondary Z-axis bracket; 702b, second lead screw; 702c, second motor; 702d, second nut; 702e, second slide rail assembly; 703, secondary Y-axis assembly; 703a, third lead screw; 703b, third motor; 703c, third nut; 703d, third slide rail assembly; 704, first connecting plate; 705, second connecting plate;

[0047] 800. X-axis mechanism; 801. X-axis support; 802. Fourth lead screw; 803. Fourth motor; 804. Third connecting plate; 805. Fourth slide rail assembly;

[0048] 900, Y-axis mechanism. Detailed Implementation

[0049] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0050] like Figure 1 and Figure 2 The diagram shown is a structural schematic of an embodiment of the present invention. A polishing machine is provided, including a frame, a Y-axis mechanism mounted on the frame, an X-axis mechanism mounted on the Y-axis mechanism, a B-axis mechanism mounted on the X-axis mechanism, multiple A-axis mechanisms mounted on the B-axis mechanism, a product support mechanism mounted on the multiple A-axis mechanisms, a Z-axis mechanism mounted on the frame, a C-axis mechanism mounted on the Z-axis mechanism, a grinding mechanism mounted on the C-axis mechanism, and a control unit. The Y-axis mechanism, X-axis mechanism, B-axis mechanism, A-axis mechanism, Z-axis mechanism, C-axis mechanism, and grinding mechanism are respectively signal-connected to the control unit to realize automatic grinding of the workpiece.

[0051] like Figure 4 and Figure 5 As shown, the grinding mechanism 400 is used to grind workpieces. It includes a grinding bracket 401, and several horizontal grinding components and several vertical grinding components mounted on the grinding bracket 401. In this example, there are two horizontal grinding components and four vertical grinding components. The grinding bracket 401 has a cubic frame structure. The two horizontal grinding components are installed at intervals on the front side of the grinding bracket 401, and the four vertical grinding components are installed at intervals in the grinding bracket 401.

[0052] Specifically, the horizontal grinding assembly includes a horizontally mounted first dual-head motor 402 and two first grinding heads 403 mounted on the first dual-head motor 402; the vertical grinding assembly includes a vertically mounted second grinding motor 404 and two second grinding heads 405 mounted on the second grinding motor 404, wherein the two first grinding heads 403 are of the same model, and the two second grinding heads 405 are of different models, which can be one large and one small. The first dual-head motor 402 and the second dual-head motor 404 adopt dual-head motors commonly used in the prior art, such as the DCBS-8006T model dual-head motor, and the first grinding heads 403 and the second grinding heads 405 have a disc-shaped structure.

[0053] The C-axis mechanism 300 is used to drive the grinding mechanism 400 to rotate, such as Figure 4 As shown, it includes a support frame 301 and a C-axis motor 302 installed on one side of the support frame 301. A grinding bracket 401 is rotatably installed on the support frame 301 and is connected to the C-axis motor 302 for transmission. Support shafts are provided at both ends of the grinding bracket 401. The support shafts are supported on the support frame 301 by bearings. One of the support shafts is connected to the C-axis motor 302 for transmission. The C-axis motor 302 drives the grinding bracket 401 to rotate, thereby driving the horizontal grinding component and the vertical grinding component to rotate.

[0054] like Figure 3 As shown, the Z-axis mechanism 200 includes a Z-axis bracket 201 fixed on the frame 100, a first lead screw 202 rotatably mounted on the Z-axis bracket 201, a first nut 204 mounted on the first lead screw 202, and a first motor 203 that drives the first lead screw 202 to rotate. The support frame 301 is fixedly connected to the first nut 204 and slidably connected to the Z-axis bracket 201 via a first slide rail assembly 205. The first slide rail assembly 205 includes a pair of slide rails vertically mounted on the Z-axis bracket 201 and a slider fixed on the support frame 301. The slider slides in cooperation with the slide rails. The first motor 203 drives the first lead screw 202 to rotate, thereby driving the first nut 204 to move axially along the first lead screw 202, which in turn drives the C-axis mechanism 300 to move vertically.

[0055] The product support mechanism 500, located below the grinding mechanism 400, is used to support the workpiece to be ground. It includes multiple product fixing seats 501 arranged at intervals. A product conforming fixture (e.g., for eyeglasses) is detachably mounted on the product fixing seat 501, and the workpiece is fixed on the product conforming fixture.

[0056] like Figure 6 As shown, multiple A-axis mechanisms 700 are mounted on the B-axis mechanism, such as... Figures 7 to 9As shown, each A-axis mechanism includes an A-axis assembly 701 that drives the workpiece to rotate, a secondary Z-axis assembly 702 that drives the A-axis assembly 701 to move vertically, and a secondary Y-axis assembly 703 that drives the A-axis assembly 701 to move forward and backward. The A-axis assembly 701 includes an A-axis base 701a, a pressure sensor 701b mounted on the A-axis base 701a, an A-axis divider 701c mounted on the pressure sensor 701a, an A-axis motor mounted on the side of the A-axis divider 701c, and an air slip ring 701e mounted on the output shaft of the A-axis divider. The pressure sensor 701a can sense the lateral vertical pressure and is connected to the control unit signal. The air slip ring 701e is used to pass gas into the output shaft to blow away debris during the grinding process. The product mounting base 501 is fixedly connected to the output shaft of the A-axis assembly 701. The pressure sensor 701b adopts the LFC15E model miniature planar pressure sensor, and the A-axis divider 701c adopts the HZ45DF-12-360-CNX model product.

[0057] The secondary Z-axis assembly 702 includes a secondary Z-axis bracket 702a, a second lead screw 702b rotatably mounted on the secondary Z-axis bracket 702a, a second motor 702c that drives the second lead screw 702b to rotate, and a second nut 702d mounted on the second lead screw 702b. The A-axis base 701a is fixedly connected to the second nut 702d via a first connecting plate 704 and slidably connected to the secondary Z-axis bracket 702a via a second slide rail assembly 702e.

[0058] The secondary Y-axis assembly 703 includes a third lead screw 703a rotatably mounted on the B-axis mechanism 600, a third motor 703b driving the third lead screw 703a to rotate, and a third nut 703c mounted on the third lead screw 703a. The secondary Z-axis bracket 702a is fixedly connected to the third nut 703c via a second connecting plate 705 and slidably connected to the B-axis mechanism 600 via a third slide rail assembly 703d. The structures of the second slide rail assembly 702e and the third slide rail assembly 703d are the same as those of the first slide rail assembly 205, both including a slide rail and a slider. The length of the slide rail is set according to the need for the A-axis assembly to compensate for the grinding force.

[0059] like Figure 10As shown, the B-axis mechanism 600 includes a swing support 601, a mounting housing 602 rotatably mounted on the swing support 601, and a swing motor 603 that drives the mounting housing 602 to swing. Multiple A-axis mechanisms 700 are installed inside the mounting housing 602. The rotating shaft of the mounting housing 602 is connected to the swing motor 603 via a worm gear and roller mechanism. Specifically, a worm gear 604 is rotatably mounted on the swing support 601. The power output end of the swing motor 603 is provided with a first transmission gear 605. A second transmission gear 606 meshing with the first transmission gear 605 is provided at one end of the worm gear 604. A roller 607 is installed at the end of the rotating shaft. Multiple rollers are arranged on the outer circumference of the roller 607, and the roller is connected to the worm gear 604 via the multiple rollers. Thus, the swing motor 603 drives the worm gear 604 to rotate, which in turn drives the roller 607 to rotate, thereby causing the mounting housing 602 to swing.

[0060] The X-axis mechanism 800 includes an X-axis bracket 801, a fourth lead screw 802 rotatably mounted on the X-axis bracket 801, a fourth motor 803 driving the fourth lead screw 802 to rotate, a fourth nut mounted on the fourth lead screw 802, and a third connecting plate 804 fixedly connected to the fourth nut. The B-axis mechanism 600 is fixedly connected to the third connecting plate 804 and slidably connected to the X-axis bracket 801 via a fourth slide rail assembly 805.

[0061] The Y-axis mechanism 900 includes a fifth lead screw rotatably mounted on the frame 100, a fifth motor driving the fifth lead screw to rotate, and a fifth nut mounted on the fifth lead screw. The X-axis bracket is fixedly connected to the fifth nut and slidably connected to the frame via a fifth slide rail assembly. The structures of the aforementioned fourth and fifth slide rail assemblies are the same as those of the first slide rail assembly, the difference being the installation direction.

[0062] The working principle of this invention is as follows:

[0063] The X-axis mechanism 800 and Y-axis mechanism 900 drive the B-axis mechanism 600 to a suitable position below the grinding mechanism 400. The Z-axis mechanism 200 drives the grinding mechanism 400 to move above the product fixing seat 501 and make the grinding head act on the workpiece to be ground. The A-axis assembly 701 drives the workpiece to be ground to rotate intermittently to the direction to be ground. The pressure sensor 701b monitors the lateral and vertical pressure of the workpiece. The position of the A-axis assembly 701 is adjusted by the secondary Y-axis assembly 703 and secondary Z-axis assembly 702 so that the force of the grinding head on the workpiece meets the grinding requirements and improves the grinding accuracy.

[0064] In summary, this polishing machine can improve the precision and efficiency of polishing irregularly shaped products.

[0065] The above examples are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A polishing machine, characterized in that, include: A grinding mechanism for grinding workpieces includes a grinding bracket and several horizontal grinding components and several vertical grinding components mounted on the grinding bracket. The grinding mechanism is mounted on the C-axis mechanism and rotates under the drive of the C-axis mechanism; Z-axis mechanism, wherein the C-axis mechanism is mounted on the Z-axis mechanism and moves vertically under the drive of the Z-axis mechanism; The product support mechanism, which is located below the grinding mechanism, is used to support the workpiece to be ground, and includes multiple product fixing seats arranged at intervals. Multiple A-axis mechanisms are provided, and multiple product mounting bases are respectively mounted on the multiple A-axis mechanisms and rotate under the action of the A-axis mechanisms. Each A-axis mechanism includes an A-axis assembly that drives the workpiece to rotate, a secondary Z-axis assembly that drives the A-axis assembly to move in the vertical direction, and a secondary Y-axis assembly that drives the A-axis assembly to move in the front-back direction. The B-axis mechanism is wherein the plurality of A-axis mechanisms are mounted on the B-axis mechanism and swing under the drive of the B-axis mechanism; The X-axis mechanism is mounted on the X-axis mechanism and moves in the left and right directions under the drive of the X-axis mechanism; The Y-axis mechanism is mounted on the Y-axis mechanism and moves along the front-back direction on the Y-axis mechanism.

2. The polishing machine according to claim 1, characterized in that: The transverse grinding assembly includes a first dual-head motor mounted transversely and two first grinding heads mounted on the first dual-head motor. The vertical grinding assembly includes a vertically mounted second grinding motor and two second grinding heads mounted on the second grinding motor.

3. The polishing machine according to claim 1, characterized in that: The C-axis mechanism includes a support frame and a C-axis motor mounted on one side of the support frame. The grinding bracket is rotatably mounted on the support frame and is connected to the C-axis motor for transmission.

4. The polishing machine according to claim 1, characterized in that: The Z-axis mechanism includes a Z-axis bracket fixed on the frame, a first lead screw rotatably mounted on the Z-axis bracket, a first nut mounted on the first lead screw, and a first motor driving the first lead screw to rotate. The support frame is fixedly connected to the first nut and slidably connected to the Z-axis bracket via a first slide rail assembly.

5. The polishing machine according to claim 1, characterized in that: The product mounting base is fixedly connected to the output shaft of the A-axis assembly, and a product conforming fixture is detachably provided on the product mounting base for fixing the workpiece to be polished.

6. The polishing machine according to claim 1, characterized in that: The A-axis assembly includes an A-axis base, a pressure sensor mounted on the A-axis base, an A-axis divider mounted on the pressure sensor, an A-axis motor mounted on the side of the A-axis divider, and a slip ring mounted on the output shaft of the A-axis divider. The pressure sensor can sense lateral and vertical pressure. The pressure sensor, the secondary Z-axis assembly, and the secondary Y-axis assembly are respectively connected to the control unit via signals.

7. The polishing machine according to claim 6, characterized in that: The secondary Z-axis assembly includes a secondary Z-axis bracket, a second lead screw rotatably mounted on the secondary Z-axis bracket, a second motor driving the second lead screw to rotate, and a second nut mounted on the second lead screw. The A-axis base is fixedly connected to the second nut and slidably connected to the secondary Z-axis bracket via a second slide rail assembly. The secondary Y-axis assembly includes a third lead screw rotatably mounted on the B-axis mechanism, a third motor driving the third lead screw to rotate, and a third nut mounted on the third lead screw. The secondary Z-axis bracket is fixedly connected to the third nut and slidably connected to the B-axis mechanism via a third slide rail assembly.

8. The polishing machine according to claim 1, characterized in that: The B-axis mechanism includes a swing support, a mounting box rotatably mounted on the swing support, and a swing motor that drives the mounting box to swing. The support shaft of the mounting box is connected to the swing motor via a worm gear and roller mechanism. The multiple A-axis mechanisms are installed in the mounting box.

9. The polishing machine according to claim 1, characterized in that: The X-axis mechanism includes an X-axis bracket, a fourth lead screw rotatably mounted on the X-axis bracket, a fourth motor driving the fourth lead screw to rotate, and a fourth nut mounted on the fourth lead screw. The B-axis mechanism is fixedly connected to the fourth nut and slidably connected to the X-axis bracket via a fourth slide rail assembly.

10. The polishing machine according to claim 9, characterized in that: The Y-axis mechanism includes a fifth lead screw rotatably mounted on the frame, a fifth motor driving the fifth lead screw to rotate, and a fifth nut mounted on the fifth lead screw. The X-axis bracket is fixedly connected to the fifth nut and slidably connected to the frame via a fifth slide rail assembly.

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