Automatic polishing production line

Abstract

The present invention discloses an automatic polishing production line, which includes a hole polishing device, a transfer device, and a peripheral polishing device. The hole polishing device includes a first frame, a loading platform, a first transfer platform, a first transfer device, a second transfer device, a rough hole polishing device, and a fine hole polishing device. The first transfer device transports workpieces in sequence between the loading platform, the rough hole polishing device, the fine hole polishing device, and the first transfer platform. The second transfer device places the workpieces on the first transfer platform onto the transfer device. The transfer device includes a second frame, a second transfer platform, a positioning device, and a third transfer device. The second transfer platform receives the workpieces from the second transfer device, and the third transfer device grabs the workpieces on the second transfer platform onto the positioning device. The peripheral polishing device includes a third frame, a fourth transfer device, and a peripheral polishing device. The fourth transfer device grabs the workpieces on the positioning device onto the peripheral polishing device. The present invention is beneficial to improving the polishing efficiency and avoiding damage to the workpieces.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing, and particularly relates to an automatic polishing production line. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical actions to reduce the surface roughness of a workpiece to obtain a bright and flat surface.

[0003] When polishing different sides or parts of existing workpieces, they need to be carried out separately on different devices. For example, Figure 1 as shown, when polishing the rear cover of a mobile phone, it is necessary to first polish the through hole for installing the camera on the rear cover of the mobile phone, and then manually transfer the rear cover of the mobile phone that has completed the through hole polishing to the peripheral polishing device to polish the side of the rear cover of the mobile phone, resulting in low efficiency of the existing method for polishing the rear cover of the mobile phone, and it is also easy to damage the rear cover of the mobile phone during the manual transfer process. The above solution is only for facilitating the understanding of the solution in the present application and is not a limitation of the prior art. Summary of the Invention

[0004] The main purpose of the present invention is to provide an automatic polishing production line to solve the technical problems raised in the background art.

[0005] To achieve the above object, the automatic polishing production line proposed by the present invention includes a hole polishing device, a transfer device, and a peripheral polishing device. The hole polishing device includes a first frame, and a loading platform, a first transfer platform, a first transfer device, a second transfer device, at least one rough hole polishing device, and at least one fine hole polishing device provided on the first frame. The loading platform is used for placing workpieces. The first transfer device is used for sequentially transporting workpieces between the loading platform, the rough hole polishing device, the fine hole polishing device, and the first transfer platform. The second transfer device is used for placing the workpieces on the first transfer platform onto the transfer device. The transfer device includes a second frame arranged adjacent to the first frame, and a second transfer platform, a positioning device, and a third transfer device provided on the second frame. The second transfer platform is used for receiving the workpieces on the second transfer device. The third transfer device is used for gripping the workpieces on the second transfer platform onto the positioning device. The peripheral polishing device includes a third frame arranged adjacent to the second frame, and a fourth transfer device and at least one peripheral polishing device provided on the third frame. The fourth transfer device is used for gripping the workpieces on the positioning device onto the peripheral polishing device. A cleaning device is further provided on the first frame. The second transfer device is used for sequentially transporting workpieces between the first transfer platform, the cleaning device, and the second transfer platform. The automatic polishing production line further includes a jig for stacking and placing workpieces, and a return line body provided on the first frame. A first placement position for placing the jig is provided on the loading platform. The first transfer device is used for sequentially transporting the jig between the loading platform, the rough hole polishing device, the fine hole polishing device, and the first transfer platform. The second transfer device is used for placing the jig on the first transfer platform onto the second transfer platform and placing the empty jig on the second transfer platform onto the return line body.

[0006] Preferably, the jig includes a base, a cover plate covering the top of the base, and a clamping member provided on the base. A receiving cavity recessed downward is provided on the top of the base. A second rotating shaft is provided on one side edge of the cover plate. The cover plate is hinged to the base through the second rotating shaft, and a first torsion spring connected to the base is sleeved on the second rotating shaft. The clamping member includes a mounting block, a clamping head, and a second torsion spring. The mounting block is provided on one side surface of the base. The clamping head is hinged to the mounting block through a first rotating shaft and can be pressed against the top of the cover plate. The second torsion spring is sleeved on the first rotating shaft and connected to the mounting block. A second placement position for placing the jig and a pushing mechanism are provided on the second transfer platform. The pushing mechanism is used for pushing the clamping head to rotate, so that the cover plate flips and opens the receiving cavity under the drive of the first torsion spring.

[0007] Preferably, there are four rough hole polishing devices and four fine hole polishing devices. The four rough hole polishing devices and the four fine hole polishing devices are arranged at intervals along a straight line on the first frame. The first transfer device includes a first manipulator and a second manipulator arranged on the first frame. The first manipulator is used to transport workpieces between the loading platform, the four rough hole polishing devices, and one fine hole polishing device arranged close to the rough hole polishing devices. The second manipulator is used to transport workpieces between the four fine hole polishing devices and the first transfer platform.

[0008] Preferably, the rough hole polishing device includes a first carrier and a rough polishing module arranged on the first frame. A third placement position for placing a workpiece is provided on the first carrier, and the rough polishing module is located directly above the third placement position. The fine hole polishing device includes a second carrier and a fine polishing module arranged on the first frame. A fourth placement position for placing a workpiece is provided on the second carrier, and the fine polishing module is located directly above the fourth placement position.

[0009] Preferably, the first carrier includes a first mounting seat arranged on the first frame, a first turntable rotatably arranged on the top of the first mounting seat, and a first driving mechanism for driving the first turntable to move. The third placement position is located on the top of the first turntable. The second carrier includes a second mounting seat arranged on the first frame, a second turntable rotatably arranged on the top of the second mounting seat, and a second driving mechanism for driving the second turntable to move. The fourth placement position is located on the top of the second turntable.

[0010] Preferably, the positioning device includes a first bottom plate, a first baffle, a third driving mechanism for driving at least one of the first baffles to move, and a fourth driving mechanism for driving the first bottom plate to move. A plurality of the first baffles surround the periphery of the first bottom plate to form a positioning cavity for receiving workpieces. The third driving mechanism drives at least one of the first baffles to move towards or away from the positioning cavity. The fourth driving mechanism drives the first bottom plate to reciprocate between the unloading point of the third transfer device and the loading point of the fourth transfer device.

[0011] Preferably, the transfer equipment further includes a third transfer platform arranged on the second frame and used for placing workpieces. The third transfer platform includes a second bottom plate, a second baffle, and a fifth driving mechanism. The second baffle surrounds the periphery of the second bottom plate to form a storage cavity. The fifth driving mechanism drives the second bottom plate to move in the vertical direction. The third transfer device is used to grab the workpieces on the third transfer platform into the storage cavity and to grab the workpieces in the storage cavity onto the positioning device.

[0012] Preferably, there are three weekly polishing devices, which are arranged in sequence along a straight line. The weekly polishing equipment further includes a blanking platform arranged on the third rack, and the fourth transfer device is further used to place the workpieces processed on the weekly polishing devices on the blanking platform.

[0013] In the automatic polishing production line provided by the embodiment of the present invention, the workpieces on the loading platform are sequentially grabbed by the first transfer device and placed on the rough polishing hole device and the fine polishing hole device for hole polishing, and the polished workpieces are placed on the first transfer platform. Then, the second transfer device is used to place the workpieces on the first transfer platform on the second transfer platform, and the third transfer device is used to place the workpieces on the second transfer platform on the positioning device for positioning. Finally, the fourth transfer device is used to place a plurality of workpieces stored on the positioning device on the weekly polishing device at one time for peripheral side polishing, thereby realizing the automatic completion of the polishing process of the workpieces, which is beneficial to improving the polishing efficiency and avoiding the situation of damaging the workpieces when manually transferring the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of an existing mobile phone back cover;

[0015] Figure 2 is a structural schematic diagram of an embodiment of the automatic polishing production line in the present invention;

[0016] Figure 3 is Figure 2 a structural schematic diagram of the hole polishing equipment shown in;

[0017] Figure 4 is Figure 2 a structural schematic diagram of the transfer equipment shown in;

[0018] Figure 5 is Figure 2 a structural schematic diagram of the weekly polishing equipment shown in;

[0019] Figure 6 is Figure 3 a structural schematic diagram of the loading platform shown in;

[0020] Figure 7 is Figure 3 a structural schematic diagram of the cleaning device shown in;

[0021] Figure 8 is a structural schematic diagram of an embodiment of the fixture in the present invention;

[0022] Figure 9 is Figure 3 a structural schematic diagram of the second transfer device shown in;

[0023] Figure 10 is Figure 4Schematic diagram of the structure of the second transfer platform shown in

[0024] Figure 11 is Figure 3 Schematic diagram of the structure of the first manipulator shown in

[0025] Figure 12 is Figure 3 Schematic diagram of the structure of the rough polishing hole device shown in

[0026] Figure 13 is Figure 12 Schematic diagram of the structure of the first carrier shown in

[0027] Figure 14 is Figure 4 Schematic diagram of the structure of the positioning device shown in

[0028] Figure 15 is Figure 4 Schematic diagram of the structure of the third transfer platform shown in

[0029] Figure 16 is Figure 4 Schematic diagram of the structure of the third transfer device shown in

[0030] Figure 17 is Figure 5 Schematic diagram of the structure of the peripheral polishing device shown in

[0031] Figure 18 is Figure 5 Schematic diagram of the structure of the blanking device shown in

[0032] Figure 19 is Figure 5 Schematic diagram of the structure of the fourth transfer device shown in 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present at the same time.

[0036] In addition, in the present invention, the descriptions involving "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The present invention provides an automatic polishing production line, which is particularly suitable for polishing workpieces with through holes, such as the rear cover 4200 of a mobile phone, as Figures 2 to 6 shown. The automatic polishing production line includes a hole polishing device 1000, a transfer device 2000, and a peripheral polishing device 3000. The hole polishing device 1000 includes a first frame 1100, a loading platform 1200, a first transfer platform 1300, a first transfer device 1400, a second transfer device 1500, at least one rough hole polishing device 1600, and at least one fine hole polishing device 1700 disposed on the first frame 1100. The loading platform 1200 is used for placing workpieces. The first transfer device 1400 is used for sequentially transporting workpieces between the loading platform 1200, the rough hole polishing device 1600, the fine hole polishing device 1700, and the first transfer platform 1300. The second transfer device 1500 is used for placing the workpieces on the first transfer platform 1300 onto the transfer device 2000. The transfer device 2000 includes a second frame 2100 arranged adjacent to the first frame 1100, a second transfer platform 2200, a positioning device 2300, and a third transfer device 2400 disposed on the second frame 2100. The second transfer platform 2200 is used for receiving the workpieces from the second transfer device 1500. The third transfer device 2400 is used for grasping the workpieces on the second transfer platform 2200 onto the positioning device 2300. The peripheral polishing device 3000 includes a third frame 3100 arranged adjacent to the second frame 2100, a fourth transfer device 3200, and at least one peripheral polishing device 3300 disposed on the third frame 3100. The fourth transfer device 3200 is used for grasping the workpieces on the positioning device 2300 onto the peripheral polishing device 3300.

[0038] Among them, the first rack 1100, the second rack 2100, and the third rack 3100 are all preferably of a frame structure. As for the placement methods of the first rack 1100, the second rack 2100, and the third rack 3100, they can be arranged in a straight line in a one-word shape or in a U-shaped arrangement. The loading platform 1200 can be a frame fixedly arranged on the first rack 1100 for placing workpieces, such as Figure 6As shown, the loading platform 1200 may also include a first carrier plate 1210 for placing workpieces and a sixth driving mechanism 1220 for driving the first carrier plate 1210 to move, so as to facilitate using the sixth driving mechanism 1220 to drive the first carrier plate 1210 to reciprocate between the workpiece loading point (where workpieces can be loaded manually or automatically by a manipulator) and the loading point of the first transfer device 1400. The first transfer device 1400 and the second transfer device 1500 may transport workpieces in the form of a manipulator. The rough hole polishing device 1600 and the fine hole polishing device 1700 can be set according to the existing form, that is, after inserting the polishing head into the through hole on the workpiece, the polishing is carried out by the rotation of the polishing head. The specific structure will not be specifically described here. The first transfer platform 1300 can be set with reference to the loading platform 1200 to facilitate temporarily placing workpieces. The second transfer platform 2200 can also be set with reference to the loading platform 1200 to facilitate temporarily storing workpieces. The positioning device 2300 is used to position the workpieces so that the fourth transfer device 3200 can accurately place the workpieces on the peripheral polishing device 3300. The specific structure can be arranged with reference to the existing form. The third transfer device 2400 may transport workpieces in the form of a manipulator. The fourth transfer device 3200 may transport workpieces in the form of a manipulator. The specific principle of the peripheral polishing device 3300 is to drive the stacked mobile phone back covers 4200 to rotate, and use the polishing parts arranged on its peripheral side to polish the side surfaces of the mobile phone back covers 4200. At this time, the polishing parts also need to rotate and move horizontally. The specific structure is set with reference to the existing peripheral polishing equipment 3000. The specific working principle of this solution is as follows: First, place the workpieces on the loading platform 1200 (at this time, multiple workpieces can be stacked and stored on the loading platform 1200), then use the first transfer device 1400 to place the workpieces on the loading platform 1200 on the rough hole polishing device 1600 for rough hole polishing (at this time, the first transfer device 1400 can only grab one workpiece at a time), then use the first transfer device 1400 to place the workpieces that have completed rough hole polishing on the fine hole polishing device 1700 for fine hole polishing, then use the first transfer device 1400 to place the workpieces that have completed fine hole polishing on the first transfer platform 1300, then use the second transfer device 1500 to place the workpieces on the first transfer platform 1300 on the second transfer platform 2200, then use the third transfer device 2400 to place the workpieces on the second transfer platform 2200 on the positioning device 2300, and finally use the fourth transfer device 3200 to grab several workpieces stored on the positioning device 2300 at one time and place them on the peripheral polishing device 3300 for peripheral side polishing.In this embodiment, the workpiece on the loading platform 1200 is successively grasped by the first transfer device 1400 and placed on the rough hole polishing device 1600 and the fine hole polishing device 1700 for hole polishing, and the polished workpiece is placed on the first transfer platform 1300. Then, the second transfer device 1500 is used to place the workpiece on the first transfer platform 1300 on the second transfer platform 2200. Next, the third transfer device 2400 is used to place the workpiece on the second transfer platform 2200 on the positioning device 2300 for positioning. Finally, the fourth transfer device 3200 is used to place several workpieces stored on the positioning device 2300 on the peripheral polishing device 3300 at one time for peripheral side polishing. In this way, all the polishing processes of the workpiece are automatically completed, which is beneficial to improving the polishing efficiency and avoiding damage to the workpiece when manually transferring the workpiece.

[0039] In a preferred embodiment, as Figure 3 and Figure 7 shown, it is preferably further provided with a cleaning device 1800 on the first frame 1100, and the second transfer device 1500 is used to successively transport the workpiece between the first transfer platform 1300, the cleaning device 1800 and the second transfer platform 2200. Among them, it is preferably that the cleaning device 1800 includes a first collection box 1810, a seventh driving mechanism 1820 arranged in the first collection box 1810, a second carrier plate 1830 connected to the output end of the seventh driving mechanism 1820, and a spraying and air drying system 1840. One end of the top of the first collection box 1810 has a loading and unloading notch for taking and placing materials. The seventh driving mechanism 1820 is preferably a motor + lead screw mechanism. The second carrier plate 1830 has a fifth placement position for placing the workpiece. The liquid outlet nozzle of the spraying and air drying system 1840 and the air outlet nozzle of the air drying system are located in the first collection box 1810. In this embodiment, the seventh driving mechanism 1820 drives the second carrier plate 1830 to move to directly below the loading and unloading notch, so as to facilitate the second transfer device 1500 to place the workpiece on the fifth placement position. Then, the seventh driving mechanism 1820 drives the second carrier plate 1830 to move away from the loading and unloading notch, and makes the workpiece located directly below the liquid outlet nozzle and the air outlet nozzle for cleaning and air drying. After the cleaning and air drying are completed, the seventh driving mechanism 1820 drives the second carrier plate 1830 to move towards the loading and unloading notch, so as to facilitate the second transfer device 1500 to grasp the cleaned workpiece and place it on the second transfer platform 2200.

[0040] In a preferred embodiment, as Figure 3 and Figure 8As shown in the figure, preferably, the automatic polishing production line further includes a jig 4000 for stacking workpieces and a return line body 1110 provided on the first frame 1100. A first placement position 1211 for placing the jig 4000 is provided on the loading platform 1200. The first transfer device 1400 is used to sequentially transport the jig 4000 between the loading platform 1200, the rough hole polishing device 1600, the fine hole polishing device 1700, and the first transfer platform 1300. The second transfer device 1500 is used to place the jig 4000 on the second transfer platform 2200 and place the empty jig 4000 on the second transfer platform 2200 on the return line body 1110. Among them, preferably, the jig 4000 has a cavity for stacking multiple workpieces, so that it is convenient for the first transfer device 1400 to grab the jig 4000 and transport multiple workpieces at one time, and the rough hole polishing device 1600 and the fine hole polishing device 1700 can also polish the holes of multiple workpieces at one time, improving the polishing efficiency. Of course, it is also possible to place the workpieces without using the jig 4000, or the first transfer device 1400 directly grabs multiple workpieces, and the rough hole polishing device 1600 and the fine hole polishing device 1700 are provided with fixing structures to fix multiple workpieces, which can also improve the polishing efficiency. At this time, preferably, the form of placing workpieces in the jig 4000 is that partitions and workpieces are alternately placed, which is beneficial to avoid damage caused by friction between adjacent workpieces, and the first placement position 1211 is located on the first carrier plate 1210. When working specifically, after the second transfer device 1500 grabs the jig 4000 from the cleaning device 1800 and places it on the second transfer platform 2200, the third transfer device 2400 is used to grab the workpieces in the jig 4000 and place them on the positioning device 2300, and the second transfer device 1500 is used to place the partitions and the empty jig 4000 on the return line body 1110. Preferably, the output end of the return line body 1110 is located on one side of the loading platform 1200, so as to facilitate the recycling of the jig 4000 and the partitions. As Figure 9 As shown in the figure, at this time, preferably, the second transfer device 1500 has two second grippers 1510, one of the second grippers 1510 is used to grab the jig 4000, and the other second gripper 1510 is used to grab the partition.

[0041] In a preferred embodiment, as Figure 8 and Figure 10As shown in the figure, preferably, the fixture 4000 includes a base 4100, a cover plate 4200 covering the top of the base 4100, and a clamping member 4300 disposed on the base 4100. A receiving cavity 4110 recessed downward is provided on the top of the base 4100. A second rotating shaft is provided on one side edge of the rear cover plate 4200 of the mobile phone. The rear cover plate 4200 of the mobile phone is hinged to the base 4100 through the second rotating shaft, and a first torsion spring connected to the base 4100 is sleeved on the second rotating shaft. The clamping member 4300 includes a mounting block 4310, a clamping head 4320, and a second torsion spring. The mounting block 4310 is disposed on one side surface of the base 4100. The clamping head 4320 is hinged to the mounting block 4310 through a first rotating shaft and can be pressed against the top of the rear cover plate 4200 of the mobile phone. The second torsion spring is sleeved on the first rotating shaft and connected to the mounting block 4310. A second placement position 2221 for placing the fixture 4000 and a pushing mechanism 2210 are provided on the second transfer platform 2200. The pushing mechanism 2210 is used to push the clamping head 4320 to rotate, so that the rear cover plate 4200 of the mobile phone flips and opens the receiving cavity 4110 under the drive of the first torsion spring.

[0042] Among them, preferably, the receiving cavity 4110 is a cavity adapted to the shape of the workpiece. The rear cover plate 4200 of the mobile phone only covers a partial area of the opening end of the receiving cavity 4110, so that the through-hole part on the workpiece is exposed, facilitating the hole polishing process. The pushing mechanism 2210 can be components such as a linear cylinder, so as to drive the clamping head 4320 in the fixture 4000 to rotate, thereby releasing the rear cover plate 4200 of the mobile phone so that the rear cover plate 4200 can flip under the drive of the first torsion spring, facilitating the second transfer device 1500 to grab the partition plate and the empty fixture 4000 in the receiving cavity 4110 and facilitating the third transfer device 2400 to grab the workpiece in the receiving cavity 4110. In this embodiment, after placing a preset number of workpieces in the receiving cavity 4110, by flipping the partition plate and making the bottom surface of the rear cover plate 4200 of the mobile phone contact the topmost partition plate, and finally using the clamping head 4320 to abut against the top of the rear cover plate 4200 to complete the workpiece placement process, which is beneficial to avoiding the situation that the workpiece moves in the receiving cavity 4110 during processing or transportation.

[0043] In a preferred embodiment, as Figure 3 and Figure 11As shown, preferably, there are four rough polishing hole devices 1600 and four fine polishing hole devices 1700. The four rough polishing hole devices 1600 and the four fine polishing hole devices 1700 are arranged at intervals along a straight line on the first rack 1100 in sequence; the first transfer device 1400 includes a first manipulator 1410 and a second manipulator 1420 arranged on the first rack 1100. The first manipulator 1410 is used to transport workpieces between the loading platform 1200, the four rough polishing hole devices 1600, and a fine polishing hole device 1700 arranged close to the rough polishing hole device 1600, and the second manipulator 1420 is used to transport workpieces between the four fine polishing hole devices 1700 and the first transfer platform 1300.

[0044] Among them, the number of the rough polishing hole devices 1600 and the fine polishing hole devices 1700 is the same as the number of through holes on the workpiece. Since the workpiece for description is the mobile phone back cover 4200, and there are four through holes on the mobile phone back cover 4200, that is, there are four rough polishing hole devices 1600 and four fine polishing hole devices 1700. That is, each rough polishing hole device 1600 and fine polishing hole device 1700 only polishes the same through hole on the workpiece. Preferably, the loading platform 1200, the four rough polishing hole devices 1600, the four fine polishing hole devices 1700, and the first transfer platform 1300 are arranged in a straight line, and the distance between adjacent two components is equal. Preferably, the first manipulator 1410 and the second manipulator 1420 have the same structure. Now, taking the first manipulator 1410 as a specific example, there are five first gripping heads 1411 on the first manipulator 1410. In the case of only gripping one workpiece, the vacuum adsorption method can be adopted. In the case of gripping the above-mentioned jig 4000, the clamping method is not selected. The first manipulator 1410 has the function of driving the first gripping head 1411 to move along a straight line and move in the vertical direction, so as to facilitate the first manipulator 1410 to drive the first gripping head 1411 to transport workpieces. Of course, it can also be in the form that one rough polishing hole device 1600 and one fine polishing hole device 1700 polish all the through holes on the workpiece.

[0045] In a preferred embodiment, as Figure 12 and Figure 13As shown in the figure, preferably, the rough polishing hole device 1600 includes a first carrier 1610 and a rough polishing module 1620 disposed on the first frame 1100. A third placement position 1614 for placing a workpiece is provided on the first carrier 1610, and the rough polishing module 1620 is located directly above the third placement position 1614. The fine polishing hole device 1700 includes a second carrier and a fine polishing module disposed on the first frame 1100. A fourth placement position for placing a workpiece is provided on the second carrier, and the fine polishing module is located directly above the fourth placement position. Among them, the structures of the rough polishing hole device 1600 and the fine polishing hole device 1700 are the same. Now, the rough polishing device will be specifically described. The first carrier 1610 includes a first mounting seat 1611 disposed on the first frame 1100, a first turntable 1612 rotatably disposed on the top of the first mounting seat 1611, and a first driving mechanism 1613 for driving the first turntable 1612 to move. The third placement position 1614 is located on the top of the first turntable 1612. At this time, the form of the third placement position 1614 can be two positioning posts disposed on the first turntable 1612, and corresponding positioning holes are provided at the bottom of the above-mentioned jig 4000. The jig 4000 is fixed by inserting the positioning posts into the positioning holes. Preferably, the rough polishing module 1620 includes an eighth driving mechanism 1621 and a rough polishing head 1622. The eighth driving mechanism 1621 preferably adopts the form of a linear module to facilitate driving the rough polishing head 1622 to move in the vertical direction, so as to insert the rough polishing head 1622 into the through hole to be polished on the workpiece, and then utilize the self-rotation of the rough polishing head 1622 to polish the through hole. The rough polishing head 1622 adopts a brush rod, and the fine polishing module adopts a grinding leather rod. In this embodiment, the first driving mechanism 1613 is used to drive the jig 4000 to rotate around the axial direction of the through hole to be polished on the workpiece, so as to facilitate the rough polishing module 1620 to improve the polishing efficiency by the self-rotation of the workpiece when polishing the through hole.

[0046] At this time, the first transfer platform 1300 can also be set with reference to the first carrier 1610 to facilitate driving the jig 4000 to change its direction (such as changing 90°) and then enabling the second transfer device to grab the jig 4000.

[0047] In a preferred embodiment, such as Figure 4 and Figure 14As shown, the preferred positioning device 2300 includes a first base plate 2310, a first baffle 2320, a third driving mechanism 2330 for driving at least one first baffle 2320 to move, and a fourth driving mechanism 2340 for driving the first base plate 2310 to move. A plurality of first baffles 2320 surround the periphery of the first base plate 2310 to form a positioning cavity for receiving workpieces. The third driving mechanism 2330 drives at least one first baffle 2320 to move towards or away from the positioning cavity, and the fourth driving mechanism 2340 drives the first base plate 2310 to reciprocate between the unloading point of the third transfer device 2400 and the loading point of the fourth transfer device 3200.

[0048] Among them, preferably, the first base plate 2310 is rectangular, and the number of first baffles 2320 is at least four and are respectively located on the four sides of the first base plate 2310, so as to facilitate enclosing and forming a positioning cavity adapted to the workpiece. At this time, preferably, the number of the third driving mechanisms 2330 is two, both of which are linear cylinders, to drive two adjacent first baffles 2320 to move. Preferably, one of the third driving mechanisms 2330 is arranged on the first base plate 2310, and the other third driving mechanism 2330 is arranged on the second frame 2100 and at the unloading position of the third transfer device 2400, so that when the fourth driving mechanism 2340 drives the workpiece in the positioning cavity to move to the loading point of the fourth transfer device 3200, it is beneficial for the fourth transfer device 3200 to extend into the interior from one side of the positioning cavity and grab all the workpieces in the positioning cavity. The fourth driving mechanism 2340 preferably adopts the form of a linear module, so as to facilitate driving the workpiece in the positioning cavity to move to the loading point of the fourth transfer device 3200. In this embodiment, the workpiece is placed in the positioning cavity by the third transfer device 2400, and then the two third driving mechanisms 2330 are used to drive the two adjacent enclosing plates to move towards the positioning cavity respectively, so as to facilitate adjusting the position of the workpiece in the positioning cavity, thereby realizing the positioning of the workpiece.

[0049] In a preferred embodiment, as Figure 4 and Figure 15As shown in the figure, preferably, the transfer device 2000 further includes a third transfer platform 2500 disposed on the second rack 2100 and used for placing workpieces. The third transfer platform 2500 includes a second bottom plate 2510, a second baffle 2520, and a fifth driving mechanism 2530. The second baffle 2520 surrounds the periphery of the second bottom plate 2510 to form a storage cavity. The fifth driving mechanism 2530 drives the bottom plate to move in the vertical direction. The third transfer device 2400 is used to grab the workpieces on the second transfer platform into the storage cavity and to grab the workpieces in the storage cavity onto the positioning device 2300. Among them, preferably, the second bottom plate 2510 is a rectangular plate, the second baffle 2520 is four L-shaped strips, and the four L-shaped strips are respectively arranged at the four corners of the second bottom plate 2510, so as to enclose a storage cavity adapted to the workpiece (i.e., the mobile phone back cover 4200). The fifth driving mechanism 2530 is used to drive the second bottom plate 2510 to move in the vertical direction, so as to facilitate the third transfer device 2400 to place the workpiece in the storage cavity or to place the workpiece in the storage cavity in the above-mentioned positioning cavity. At this time, as Figure 16 shown in the figure, preferably, the third transfer device 2400 has two independently operating third grippers 2410, so as to facilitate using one of the third grippers 2410 to place the partition in the fixture 4000 on the second transfer platform 2200 at the following seventh placement position 3411 and using the other third gripper 2410 to place the workpiece in the fixture 4000 on the second transfer platform 2200 in the storage cavity or to place the workpiece in the storage cavity in the positioning cavity. Preferably, both of the two third grippers 2410 use the vacuum adsorption method to grab the partition and the workpiece. Of course, the third gripper 2410 that grabs the workpiece can also directly grab the workpiece from the fixture 4000 into the positioning cavity.

[0050] At the same time, as Figure 10 shown in the figure, preferably, the second transfer platform 2200 includes a third carrier plate 2220 and a ninth driving mechanism 2230 for driving the third carrier plate 2220 to move. Among them, the above-mentioned second placement position 2221 is located on the third carrier plate 2220, and a sixth placement position 2222 is also provided on the third carrier plate 2220. The sixth placement position 2222 is used for placing partitions, so as to facilitate grabbing the partitions on the sixth placement position 2222 onto the return line 1110 by one of the second grippers 1510 in the second transfer device 1500 after a certain number of partitions are stored. As for the ninth driving mechanism 2230, preferably, a linear module is used to facilitate driving the third carrier plate 2220 to reciprocate between the blanking point of the second transfer device 1500 and the feeding point of the third transfer device 2400. Specifically, preferably, after the second transfer device 1500 places the fixture 4000 at the second placement position, the ninth driving mechanism 2230 drives the third carrier plate 2220 to move to the feeding point of the third transfer device 2400, so as to facilitate the two third grippers 2410 to alternately grab the partition and the workpiece.

[0051] In a preferred embodiment, as Figure 5 shown, it is preferred that there are three weekly polishing devices 3300, and the three weekly polishing devices 3300 are arranged in sequence along a straight line. The weekly polishing equipment 3000 further includes a blanking platform 3400 provided on the third rack 3100. The fourth transfer device 3200 is further configured to place the workpieces completed on the weekly polishing device 3300 on the blanking platform 3400. Among them, as Figure 17 shown, the weekly polishing device 3300 includes:

[0052] A turntable 3310, which is rotatably arranged on the third rack 3100;

[0053] A tenth driving mechanism 3320, which is provided on the third rack 3100 and connected to the turntable 3310;

[0054] A pressing head 3330, which is located directly above the turntable 3310 and can move towards or away from the turntable 3310;

[0055] An eleventh driving mechanism, which is provided on the third rack 3100 and rotatably connected to the pressing head 3330;

[0056] Two polishing cylinders 3340, which are oppositely arranged in the circumferential direction of the turntable 3310;

[0057] A twelfth driving mechanism 3350, the output end of which is connected to the two polishing cylinders 3340.

[0058] Among them, the turntable 3310 is used to place the workpiece. At this time, it is preferred that the turntable 3310 is provided with an avoidance notch, so as to facilitate the fourth transfer device 3200 to place the mobile phone back cover 4200 on the turntable 3310. The tenth driving mechanism 3320 preferably adopts the form of a motor + reducer to drive the turntable 3310 to rotate. The eleventh driving mechanism preferably adopts a linear cylinder to drive the pressing head 3330 to move towards the turntable 3310, so as to cooperate with the turntable 3310 to clamp the mobile phone back cover 4200 on the turntable 3310. And the pressing head 3330 is rotatably connected to the output end of the linear cylinder, so as to facilitate the pressing head 3330 to rotate following the turntable 3310. The two polishing cylinders 3340 are respectively a carpet cylinder and a hog hair cylinder, so as to facilitate polishing the side surface of the mobile phone back cover 4200 by the self-rotation of the polishing cylinders 3340. At this time, the twelfth driving mechanism 3350 includes two first driving components, two second driving components and a third driving component. The two first driving components preferably adopt the form of a motor + reducer to respectively drive the two polishing cylinders 3340 to rotate. The two second driving components preferably adopt the form of a motor + lead screw to facilitate the relative or opposite movement of the two polishing cylinders 3340 respectively. The third driving component preferably adopts the form of a motor + cam structure to facilitate driving the two polishing cylinders 3340 to move up and down reciprocally as a whole, which is beneficial to improving the polishing efficiency.

[0059] Meanwhile, as Figure 18 shown, the blanking platform 3400 preferably includes a fourth carrier plate 3410 for placing the workpiece and a thirteenth driving mechanism 3420 for driving the fourth carrier plate 3410 to move, so as to facilitate driving the fourth carrier plate 3410 to reciprocate between the workpiece blanking point (manual blanking or automatic blanking by a manipulator) and the blanking point of the fourth transfer device 3200 by the thirteenth driving mechanism 3420, so as to facilitate the fourth transfer device 3200 to grab the workpiece that has completed the peripheral polishing process on the peripheral polishing device 3300 onto the blanking platform 3400 for manual or mechanical blanking. At this time, it is preferred that the fourth carrier plate 3410 is provided with a seventh placement position 3411 for placing the workpiece. Specifically, the seventh placement position 3411 can be in the form of a cavity, so as to facilitate avoiding the situation that the workpiece moves out during the movement of the fourth carrier plate 3410.

[0060] Furthermore, as Figure 19As shown, it is preferred that there is at least one fourth gripping head 3210 on the fourth transfer device 3200. The fourth gripping head 3210 preferably grips the workpiece in a vertically clamping manner, so as to facilitate the one-time gripping of several stacked workpieces on the positioning device 2300 onto the peripheral polishing device 3300 and the one-time gripping of the workpieces that have completed peripheral polishing on the peripheral polishing device 3300 onto the above-mentioned blanking platform 3400. Specifically, if there are two fourth gripping heads 3210, one of the fourth gripping heads 3210 is used to grip the workpiece on the positioning device 2300 onto the peripheral polishing device 3300 for the peripheral polishing process, and the other fourth gripping head 3210 is used to grip the workpiece that has completed peripheral polishing on the peripheral polishing device 3300 onto the blanking platform 3400.

[0061] In a preferred embodiment, it is preferred that a second collection box is provided on the first frame 1100 and a third collection box is provided on the third frame 3100. The above-mentioned first carrier 1610 and the second carrier are both located in the second collection box, and the turntable 3310 is located in the third collection box, so as to facilitate the collection of polishing liquid. Of course, in order to prevent the splashing of polishing liquid, a first sealing cover can also be provided on the first frame 1100, a second sealing cover can be provided on the second frame 2100, and a third sealing cover can be provided on the third frame 3100.

[0062] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or any direct / indirect application in other related technical fields is included in the scope of protection of the present invention.

Claims

1. An automatic polishing production line, characterized in that, it includes a hole polishing device, a transfer device, and a peripheral polishing device. The hole polishing device includes a first frame and a loading platform, a first transfer platform, a first transfer device, a second transfer device, at least one rough hole polishing device, and at least one fine hole polishing device provided on the first frame. The loading platform is used for placing workpieces. The first transfer device is used for sequentially transporting workpieces between the loading platform, the rough hole polishing device, the fine hole polishing device, and the first transfer platform. The second transfer device is used for placing the workpieces on the first transfer platform onto the transfer device. The transfer device includes a second frame arranged adjacent to the first frame and a second transfer platform, a positioning device, and a third transfer device provided on the second frame. The second transfer platform is used for receiving the workpieces on the second transfer device. The third transfer device is used for grasping the workpieces on the second transfer platform onto the positioning device. The peripheral polishing device includes a third frame arranged adjacent to the second frame and a fourth transfer device and at least one peripheral polishing device provided on the third frame. The fourth transfer device is used for grasping the workpieces on the positioning device onto the peripheral polishing device. A cleaning device is further provided on the first frame. The second transfer device is used for sequentially transporting workpieces between the first transfer platform, the cleaning device, and the second transfer platform. The automatic polishing production line further includes a jig for stacking and placing workpieces and a return line body provided on the first frame. A first placement position for placing the jig is provided on the loading platform. The first transfer device is used for sequentially transporting the jig between the loading platform, the rough hole polishing device, the fine hole polishing device, and the first transfer platform. The second transfer device is used for placing the jig on the first transfer platform onto the second transfer platform and placing the empty jig on the second transfer platform onto the return line body.

2. The automatic polishing production line according to claim 1, characterized in that, the jig includes a base, a cover plate covering the top of the base, and a clamping member provided on the base. A downwardly concave storage cavity is provided at the top of the base. One side edge of the cover plate is provided with a second rotating shaft. The cover plate is hinged to the base through the second rotating shaft, and a first torsion spring connected to the base is sleeved on the second rotating shaft. The clamping member includes a mounting block, a clamping head, and a second torsion spring. The mounting block is provided on one side surface of the base. The clamping head is hinged to the mounting block through a first rotating shaft and can be pressed against the top of the cover plate. The second torsion spring is sleeved on the first rotating shaft and connected to the mounting block. A second placement position for placing the jig and a pushing mechanism are provided on the second transfer platform. The pushing mechanism is used for pushing the clamping head to rotate, so that the cover plate flips and opens the storage cavity under the drive of the first torsion spring.

3. The automatic polishing production line according to claim 1, characterized in that, Both the rough polishing hole device and the fine polishing hole device are four in number. The four rough polishing hole devices and the four fine polishing hole devices are arranged at intervals along a straight line on the first rack. The first transfer device includes a first manipulator and a second manipulator arranged on the first rack. The first manipulator is used to transport workpieces between the loading platform, the four rough polishing hole devices, and one fine polishing hole device arranged close to the rough polishing hole device. The second manipulator is used to transport workpieces between the four fine polishing hole devices and the first transfer platform.

4. The automatic polishing production line according to any one of claims 1 to 3, characterized in that the rough polishing hole device includes a first carrier and a rough polishing module arranged on the first rack. A third placement position for placing a workpiece is provided on the first carrier, and the rough polishing module is located directly above the third placement position. The fine polishing hole device includes a second carrier and a fine polishing module arranged on the first rack. A fourth placement position for placing a workpiece is provided on the second carrier, and the fine polishing module is located directly above the fourth placement position.

5. The automatic polishing production line according to claim 4, characterized in that the first carrier includes a first mounting seat arranged on the first rack, a first turntable rotatably arranged on the top of the first mounting seat, and a first driving mechanism for driving the first turntable to move. The third placement position is located on the top of the first turntable. The second carrier includes a second mounting seat arranged on the first rack, a second turntable rotatably arranged on the top of the second mounting seat, and a second driving mechanism for driving the second turntable to move. The fourth placement position is located on the top of the second turntable.

6. The automatic polishing production line according to claim 1, characterized in that the positioning device includes a first bottom plate, a first baffle, a third driving mechanism for driving at least one of the first baffles to move, and a fourth driving mechanism for driving the first bottom plate to move. A plurality of the first baffles surround the periphery of the first bottom plate to form a positioning cavity for receiving workpieces. The third driving mechanism drives at least one of the first baffles to move towards or away from the positioning cavity, and the fourth driving mechanism drives the first bottom plate to reciprocate between the unloading point of the third transfer device and the loading point of the fourth transfer device.

7. The automatic polishing production line according to claim 1, characterized in that the transfer equipment further includes a third transfer platform arranged on the second rack and used for placing workpieces. The third transfer platform includes a second bottom plate, a second baffle, and a fifth driving mechanism. The second baffle surrounds the periphery of the second bottom plate to form a storage cavity. The fifth driving mechanism drives the second bottom plate to move in the vertical direction. The third transfer device is used to grab the workpieces on the second transfer platform into the storage cavity and to grab the workpieces in the storage cavity onto the positioning device.

8. The automatic polishing production line according to claim 1, characterized in that There are three weekly polishing devices, and the three weekly polishing devices are arranged in sequence along a straight line. The weekly polishing equipment further includes a blanking platform arranged on the third rack, and the fourth transfer device is further used to place the workpieces that have been processed on the weekly polishing devices on the blanking platform.

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