A device for polishing and grinding complex cavities of a casting casing

Abstract

The present invention provides a device for polishing and grinding complex cavities of a casting casing, belonging to the technical field of grinding devices. It includes a machine tool body. A bottom plate is arranged on one side of the machine tool body. A robotic arm is arranged on the top of the bottom plate. A casing body is fixedly installed on one side of the robotic arm. A grinding mechanism is arranged on one side of the casing body. A limiting mechanism is arranged on one side of the grinding mechanism. A propulsion mechanism is arranged on one side of the limiting mechanism. By setting a piston plate in the present invention, the liquid itself is utilized to push the piston rod out of the inside of the round tube due to its fluidity. When one of the piston rods pushes the grinding mechanism on one side of the rack to one side of the casing body, the liquid in the first cavity will continue to push out the other piston rods in sequence until the first grinder and the second grinder are completely fitted. At this time, when the grinding mechanism is started to grind the casing body, the abrasive belt fits the casing body most closely.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding devices, and particularly relates to a device for polishing and grinding complex cavities of a casting casing. Background Art

[0002] The method of pouring liquid metal into a casting cavity adapted to the shape of a part and waiting for it to cool and solidify to obtain a part or a blank is called casting. A casting obtained by the casting method is called a casting part. Among them, relatively complex casings can be produced by the casting method, but the surface of the casing needs to be polished multiple times to continuously improve the flatness of the surface.

[0003] Existing devices usually use a grinding wheel to polish the outer surface of the casing once. However, due to the limitation of the slide rail, they are usually only applicable to casings with regular shapes. For casings with irregular curved surfaces on the outer surface, manual grinding by workers is required, and the efficiency of grinding and polishing is relatively low. Or, after programming, a robotic arm is used to grind casings with specific shapes, the operation is relatively complex, and the cost is relatively high.

[0004] Therefore, the present application provides a device for polishing and grinding complex cavities of a casting casing to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a device for polishing and grinding complex cavities of a casting casing to solve the problem that the existing grinding devices are only applicable to the grinding of casings with regular shapes and are difficult to grind casings with irregular shapes.

[0006] To solve the above technical problem, the present invention provides the following technical solutions:

[0007] A device for polishing and grinding complex cavities of a casting casing, comprising a machine tool body. A bottom plate is provided on one side of the machine tool body. A robotic arm is provided on the top of the bottom plate. A casing body is fixedly installed on one side of the robotic arm. A grinding mechanism is provided on one side of the casing body. A limiting mechanism is provided on one side of the grinding mechanism. A propulsion mechanism is provided on one side of the limiting mechanism.

[0008] A grinding mechanism, the grinding mechanism includes a first grinder and a second grinder, the first grinder and the second grinder are arranged on one side of the casing body, the first grinder and the second grinder each include an outer shell, a first twisting block, a second twisting block, a side plate, a worm, a second servo motor and a worm wheel, the outer shell is arranged on one side of the limiting mechanism, one side of the outer shell is fixedly connected to the first twisting block, the other side of the outer shell is fixedly connected to the second twisting block, the top of the outer shell is fixedly connected to the side plate, one side of the side plate is movably mounted with a worm, the worm is fixedly mounted on the output end of the second servo motor, the second servo motor is fixedly mounted on the top of the outer shell, one side of the worm is meshingly driven with a worm wheel, the second servo motor is electrically connected to the time relay, and the output end of the second servo motor has the same rotation speed each time it is started.

[0009] As a preferred scheme, the first grinder and the second grinder also include a rotating shaft, a triangular plate, a third servo motor, a first gear, a second gear, a sanding belt, a roller shaft, a transmission shaft and a first positioning rod, the rotating shaft is fixedly connected to the bottom of the worm gear, the top and bottom of the rotating shaft are fixedly installed with triangular plates, the bottom of the triangular plate is provided with a third servo motor, the output end of the third servo motor is fixedly installed with the first gear, one side of the first gear is meshed and transmitted with the second gear, one side of the second gear is fixedly connected with a roller shaft, one side of the roller shaft is belt-driven with a sanding belt, one side of the sanding belt is belt-driven with a transmission shaft, the first positioning rod is movably sleeved on one side of the first twisting block, the sanding belts are divided into 3 groups, and the mesh number of each group of sanding belts is different, the third servo motor is fixedly installed at the bottom of the outer shell, and the third servo motors inside the first grinder and the second grinder are both linked and controlled through a parallel circuit.

[0010] As a preferred solution, the machine tool body includes a support block, a top plate, a first slide groove, a first slider, a base, a screw rod and a first servo motor, the support block is arranged on one side of the bottom plate, the top of the support block is fixedly mounted with a top plate, the top of the top plate is provided with a first slide groove, the first slider is movably mounted inside the first slide groove, the top of the first slider is fixedly mounted with a base, a screw rod is threadedly sleeved on one side of the first slider, the screw rod is fixedly mounted on the output end of the first servo motor, the first servo motor is fixedly mounted on one side of the top plate, and the base is fixedly mounted on the bottom of the limiting mechanism.

[0011] As a preferred solution, the first twist block on the first grinder is movably connected to the second twist block on the second grinder via a first positioning rod, and the maximum rotation angle of the adjacent outer shells on the first grinder and the second grinder is 20°.

[0012] As a preferred solution, the limiting mechanism includes a rack, a first tooth groove, a first slide rail, a second slide rail, a first limiting groove, a second limiting groove, a first horizontal plate, a positioning plate, and a first hydraulic cylinder. The rack is fixedly connected to one side of the housing. The top of the rack is provided with a first tooth groove. One side of the rack is movably connected to a first slide rail, and the other side of the rack is movably connected to a second slide rail. The top of the second slide rail is provided with a first limiting groove, and one side of the second slide rail is provided with a second limiting groove, and the second limiting groove penetrates through the second slide rail. The top of the second slide rail is fixedly installed with a positioning plate, and the top of the positioning plate is fixedly installed with a first hydraulic cylinder. The output end of the first hydraulic cylinder is fixedly installed with a first horizontal plate.

[0013] As a preferred solution, the limiting mechanism further includes a second positioning rod, a buffer pad, a third slide rail, a first limiting hole, a second chute, a second slider, a clamping block, and a second tooth groove. The second positioning rod is fixedly installed at the bottom of the first horizontal plate. The bottom of the second positioning rod is fixedly connected to a buffer pad. The buffer pad is movably sleeved on one side of the third slide rail. The top of the third slide rail is provided with a first limiting hole, and the bottom of the third slide rail is provided with a second chute. The inside of the second chute is movably connected to a second slider. The bottom of the second slider is fixedly connected to a clamping block, and the bottom of the clamping block is provided with a second tooth groove.

[0014] As a preferred solution, the second tooth groove is meshed and connected to the top of the rack. The buffer pad is movably connected to the top of the clamping block. The height of the second positioning rod is greater than the height of the third slide rail. The first limiting hole penetrates through the third slide rail. The clamping blocks are all arranged at the bottom of the first horizontal plate, and each group of clamping blocks is respectively meshed with the rack.

[0015] As a preferred solution, the first horizontal plate is movably installed inside the first limiting groove, and a plurality of limiting columns are arranged on the first horizontal plate. A sliding sleeve is movably installed at the connection between the first horizontal plate and the limiting columns.

[0016] As a preferred solution, the propulsion mechanism includes a first cavity, a second cavity, a circular tube, a piston rod, a sealing plate, a second hydraulic cylinder, a piston plate, a second limiting hole, a positioning column, and a stopper. The first cavity is fixedly installed at the top of the base. One side of the first cavity communicates with a second cavity. One side of the second cavity communicates with a circular tube. The piston rod is movably sleeved inside the circular tube. One side of the first cavity is fixedly connected to a sealing plate. One side of the sealing plate is fixedly installed with a second hydraulic cylinder. The output end of the second hydraulic cylinder is fixedly installed with a piston plate. Second limiting holes are respectively opened on the left and right sides of the piston plate, and the second limiting holes penetrate through the piston plate. A positioning column is movably sleeved on one side of the second limiting hole. One side of the first cavity is fixedly sleeved with a stopper.

[0017] As a preferred solution, the stopper is movably connected to one side of the piston plate, the positioning post is fixedly installed on one side of the stopper, the circular tube, the piston rod, the second cavity, the first cavity and the sealing plate form a sealed cavity, and the inside of the sealed cavity is filled with hydraulic oil.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. In the above solution, by setting the first grinding device, by uniformly controlling the second servo motors inside the first grinding device and the second grinding device to start, driving the worm and the worm gear to engage and drive, thereby driving the triangular plate to rotate, further driving the three sets of sand belts with different mesh numbers on the triangular plate to contact the casing body, achieving the purpose of quickly switching the sand belts for grinding and polishing without replacement;

[0020] 2. In the above solution, by setting the first cross plate, by starting the first hydraulic cylinder to drive the first cross plate to move up and down inside the first limiting groove, multiple racks can be braked simultaneously. Using the first tooth groove at the top of the rack to engage with the second tooth groove at the bottom of the block, the rack can be locked to prevent the rack from shaking. At the same time, the second slider at the top of the block can automatically slide when the second tooth groove contacts the first tooth groove, reducing the wear between the rack and the block and achieving complete engagement;

[0021] 3. In the above solution, by setting the piston plate, using the fluidity of the liquid itself to push the piston rod out of the circular tube. When one of the piston rods pushes the grinding mechanism on one side of the rack to one side of the casing body, the liquid in the first cavity will continue to push out the other piston rods in turn until the first grinding device and the second grinding device are completely attached. At this time, when starting the grinding mechanism to grind the casing body, the sand belt fits the casing body most closely. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a device for polishing and grinding complex cavities of a casting casing;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of a machine tool of a device for polishing and grinding complex cavities of a casting casing;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of a grinding mechanism of a device for polishing and grinding complex cavities of a casting casing;

[0026] Figure 4Schematic diagram of the partial structure of the grinding mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0027] Figure 5 Exploded structure schematic diagram of the grinding mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0028] Figure 6 Stereoscopic structure schematic diagram of the limiting mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0029] Figure 7 Schematic diagram of the partial structure of the limiting mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0030] Figure 8 Exploded structure schematic diagram of the limiting mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0031] Figure 9 Schematic diagram of the main structure of the propulsion mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0032] Figure 10 Schematic diagram of the partial structure of the propulsion mechanism of a device for polishing and grinding the complex cavity of a casting casing

[0033] 1. Machine tool body; 101. Support block; 102. Top plate; 103. First chute; 104. First slider; 105. Base; 106. Lead screw; 107. First servo motor; 2. Bottom plate; 3. Robot arm; 4. Casing body; 5. Grinding mechanism; 51. First grinder; 52. Second grinder; 501. Outer shell; 502. First hinge block; 503. Second hinge block; 504. Side plate; 505. Worm; 506. Second servo motor; 507. Worm gear; 508. Rotating shaft; 509. Triangular plate; 510. Third servo motor; 511. First gear; 512. Second gear; 513. Sand belt; 514. Roller shaft; 515. Transmission shaft; 516. First positioning rod; 6. Limiting mechanism; 601. Rack; 602. First tooth groove; 603. First slide rail; 604. Second slide rail; 605. First limiting groove; 606. Second limiting groove; 607. First cross plate; 608. Positioning plate; 609. First hydraulic cylinder; 610. Second positioning rod; 611. Buffer pad; 612. Third slide rail; 613. First limiting hole; 614. Second chute; 615. Second slider; 616. Clamping block; 617. Second tooth groove; 7. Propulsion mechanism; 701. First cavity; 702. Second cavity; 703. Round tube; 704. Piston rod; 705. Sealing plate; 706. Second hydraulic cylinder; 707. Piston plate; 708. Second limiting hole; 709. Positioning column; 710. Stop block.

[0034] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included within the scope of the appended claims. Detailed implementation manners

[0035] The following will describe in detail a device for polishing and grinding complex cavities of a casting casing provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0036] It should be noted that in the specification, references to "one embodiment", "an embodiment", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, the implementation of such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0037] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood to not necessarily convey a set of exclusive factors, but rather, at least in part depending on the context, to allow for the existence of other factors that may not be explicitly described.

[0038] It can be understood that the meanings of "on...", "above...", and "over..." in the present disclosure should be construed in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0039] In addition, spatial relative terms such as "under", "below", "lower part", "above", "upper part", etc. may be used in this text for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations during the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptive terms used in this text may be correspondingly interpreted similarly.

[0040] Example: As Figure 1 and Figure 2 shown, an embodiment of the present invention provides a device for polishing and grinding a complex cavity of a casting casing, including a machine tool body 1. A bottom plate 2 is provided on one side of the machine tool body 1. A robotic arm 3 is provided on the top of the bottom plate 2. A casing body 4 is fixedly installed on one side of the robotic arm 3. A grinding mechanism 5 is provided on one side of the casing body 4. A limiting mechanism 6 is provided on one side of the grinding mechanism 5. A propulsion mechanism 7 is provided on one side of the limiting mechanism 6;

[0041] The machine tool body 1 includes a support block 101, a top plate 102, a first sliding groove 103, a first sliding block 104, a base 105, a lead screw 106, and a first servo motor 107. The support block 101 is provided on one side of the bottom plate 2. The top plate 102 is fixedly installed on the top of the support block 101. The first sliding groove 103 is opened on the top of the top plate 102. The first sliding block 104 is movably installed inside the first sliding groove 103. The base 105 is fixedly installed on the top of the first sliding block 104. The lead screw 106 is threadedly sleeved on one side of the first sliding block 104. The lead screw 106 is fixedly installed at the output end of the first servo motor 107. The first servo motor 107 is fixedly installed on one side of the top plate 102. The base 105 is fixedly installed at the bottom of the limiting mechanism 6.

[0042] It should be further explained that: when it is necessary to start the device to grind the casing body 4, first use the robotic arm 3 to fixedly clamp the casing body 4, and then start the first servo motor 107 to drive the lead screw 106 to rotate, thereby driving the first sliding block 104 to slide inside the first sliding groove 103, and further driving the base 105 to move back and forth along the direction of the first sliding groove 103 through the first sliding block 104. When the base 105 moves, the grinding mechanism 5, the limiting mechanism 6, and the propulsion mechanism 7 on the top of the base 105 move synchronously.

[0043] As Figure 2 、 Figure 3 Figure 4 and Figure 5As shown, the grinding mechanism 5 includes a first grinder 51 and a second grinder 52, the first grinder 51 and the second grinder 52 are arranged on one side of the casing body 4, the first grinder 51 and the second grinder 52 both include a shell 501, a first twisting block 502, a second twisting block 503, a side plate 504, a worm 505, a second servo motor 506 and a worm wheel 507, the shell 501 is arranged on one side of the limiting mechanism 6, one side of the shell 501 is fixedly connected to the first twisting block 502, and the shell 501 A second twisting block 503 is fixedly connected to the other side of the housing 501, a side plate 504 is fixedly connected to the top of the housing 501, a worm 505 is movably mounted on one side of the side plate 504, the worm 505 is fixedly mounted on the output end of the second servo motor 506, the second servo motor 506 is fixedly mounted on the top of the housing 501, a worm wheel 507 is meshed and transmitted on one side of the worm 505, the second servo motor 506 is electrically connected to the time relay, and the output end of the second servo motor 506 has the same rotation speed each time it is started.

[0044] The first grinder 51 and the second grinder 52 also include a rotating shaft 508, a triangular plate 509, a third servo motor 510, a first gear 511, a second gear 512, an abrasive belt 513, a roller 514, a transmission shaft 515 and a first positioning rod 516. The rotating shaft 508 is fixedly connected to the bottom of the worm gear 507. The triangular plate 509 is fixedly installed on the top and bottom of the rotating shaft 508. The third servo motor 510 is arranged at the bottom of the triangular plate 509. The output end of the third servo motor 510 is fixedly installed with the first gear 511. The output end of the first gear 511 is fixedly installed. A second gear 512 is meshed and driven on one side, a roller 514 is fixedly connected to one side of the second gear 512, a sanding belt 513 is driven on one side of the roller 514, a transmission shaft 515 is driven on one side of the sanding belt 513, a first positioning rod 516 is movably sleeved on one side of the first twisting block 502, the sanding belts 513 are divided into three groups, and the mesh count of each group of sanding belts 513 is different, a third servo motor 510 is fixedly installed on the bottom of the housing 501, and the third servo motors 510 inside the first grinder 51 and the second grinder 52 are both controlled in linkage through a parallel circuit.

[0045] The first twist block 502 on the first grinder 51 is movably connected to the second twist block 503 on the second grinder 52 via the first positioning rod 516 , and the maximum rotation angle of the adjacent housings 501 on the first grinder 51 and the second grinder 52 is 20°.

[0046] It should be further explained that when the casing body 4 needs to be polished, first set the parameters of the time relay electrically connected to the second servo motor 506, and energize the second servo motor 506 intermittently according to the polishing duration. When the second servo motor 506 starts, it drives the worm 505 to engage and drive with the worm gear 507, thereby driving the synchronous rotation of the rotating shaft 508 at the bottom of the worm gear 507. When the rotating shaft 508 rotates, the triangular plate 509 rotates synchronously and drives the abrasive belt 513, the roller shaft 514, and the transmission shaft 515 to rotate around the rotating shaft 508, and the rotation angle is 120°. When initially polishing the casing body 4, the abrasive belt 513 with the lowest mesh number is used for rough machining, and then the abrasive belt 513 with higher mesh numbers is used for polishing in sequence. Moreover, the outer casing 501 on the first grinder 51 and the second grinder 52 is movably connected through the first positioning rod 516 and can rotate within the range of 0° to 20°. With the cooperation of the limiting mechanism 6 and the propulsion mechanism 7, it can fit the casing body 4 for polishing.

[0047] As Figure 6 , Figure 7 and Figure 8 shown, the limiting mechanism 6 includes a rack 601, a first tooth groove 602, a first slide rail 603, a second slide rail 604, a first limiting groove 605, a second limiting groove 606, a first cross plate 607, a positioning plate 608, and a first hydraulic cylinder 609. The rack 601 is fixedly connected to one side of the outer casing 501. The top of the rack 601 is provided with a first tooth groove 602. One side of the rack 601 is movably connected to a first slide rail 603. The other side of the rack 601 is movably connected to a second slide rail 604. The top of the second slide rail 604 is provided with a first limiting groove 605. One side of the second slide rail 604 is provided with a second limiting groove 606, and the second limiting groove 606 penetrates through the second slide rail 604. The top of the second slide rail 604 is fixedly installed with a positioning plate 608. The top of the positioning plate 608 is fixedly installed with a first hydraulic cylinder 609. The output end of the first hydraulic cylinder 609 is fixedly installed with a first cross plate 607.

[0048] The limiting mechanism 6 further includes a second positioning rod 610, a buffer pad 611, a third slide rail 612, a first limiting hole 613, a second chute 614, a second slider 615, a clamping block 616, and a second tooth groove 617. The second positioning rod 610 is fixedly installed at the bottom of the first cross plate 607. The bottom of the second positioning rod 610 is fixedly connected to a buffer pad 611. The buffer pad 611 is movably sleeved on one side of the third slide rail 612. The top of the third slide rail 612 is provided with a first limiting hole 613. The bottom of the third slide rail 612 is provided with a second chute 614. The inside of the second chute 614 is movably connected to a second slider 615. The bottom of the second slider 615 is fixedly connected to a clamping block 616. The bottom of the clamping block 616 is provided with a second tooth groove 617.

[0049] The second tooth groove 617 is meshed and connected to the top of the rack 601. The buffer pad 611 is movably connected to the top of the clamping block 616. The height of the second positioning rod 610 is greater than the height of the third slide rail 612. The first limiting hole 613 penetrates through the third slide rail 612. The clamping blocks 616 are all arranged at the bottom of the first cross plate 607, and each group of clamping blocks 616 is respectively meshed with the rack 601.

[0050] The first cross plate 607 is movably installed inside the first limiting groove 605, and a plurality of limiting columns are arranged on the first cross plate 607. A sliding sleeve is movably installed at the connection of the first cross plate 607 and the limiting columns.

[0051] It should be further explained that when the angle between the first grinding device 51 and the second grinding device 52 needs to be adjusted, the first hydraulic cylinder 609 is started to drive the first cross plate 607 to move upward, thereby driving the second positioning rod 610 at the bottom of the first cross plate 607 to move, further driving the buffer pad 611 to disengage from the clamping block 616. At this time, the clamping block 616 is disengaged from the rack 601, and the rack 601 can freely move on one side of the first slide rail 603 and the second slide rail 604. When the rack 601 moves to the designated position, the first hydraulic cylinder 609 is started to drive the first cross plate 607 to press down, thereby driving the buffer pad 611 to fit with the clamping block 616, further driving the second tooth groove 617 at the bottom of the clamping block 616 to be meshed with the first tooth groove 602 at the top of the rack 601. During the meshing process, the second sliding block 615 at the top of the clamping block 616 will automatically move inside the second chute 614, reducing the friction between the clamping block 616 and the rack 601. At this time, the rack 601 is fixed, and the angle between the first grinding device 51 and the second grinding device 52 is adjusted.

[0052] As Figure 9 and Figure 10 shown, the propulsion mechanism 7 includes a first cavity 701, a second cavity 702, a circular tube 703, a piston rod 704, a sealing plate 705, a second hydraulic cylinder 706, a piston plate 707, a second limiting hole 708, a positioning column 709 and a stop block 710. The first cavity 701 is fixedly installed on the top of the base 105. One side of the first cavity 701 communicates with the second cavity 702. One side of the second cavity 702 communicates with the circular tube 703. The piston rod 704 is movably sleeved inside the circular tube 703. One side of the first cavity 701 is fixedly connected with the sealing plate 705. A second hydraulic cylinder 706 is fixedly installed on one side of the sealing plate 705. The output end of the second hydraulic cylinder 706 is fixedly installed with the piston plate 707. Second limiting holes 708 are opened on both the left and right sides of the piston plate 707, and the second limiting holes 708 penetrate through the piston plate 707. The positioning column 709 is movably sleeved on one side of the second limiting hole 708. The stop block 710 is fixedly sleeved on one side of the first cavity 701.

[0053] The stopper 710 is movably connected to one side of the piston plate 707. The positioning post 709 is fixedly installed on one side of the stopper 710. The circular tube 703, the piston rod 704, the second cavity 702, the first cavity 701 and the sealing plate 705 form a sealed cavity, and the inside of the sealed cavity is filled with hydraulic oil.

[0054] It should be further explained that: by starting the second hydraulic cylinder 706 to push the piston plate 707 to move inside the first cavity 701. Since the inside of the first cavity 701, the second cavity 702 and the circular tube 703 are all filled with hydraulic oil, when the piston plate 707 moves, the hydraulic oil will uniformly apply a thrust to each piston rod 704 until the piston rod 704 is restricted and cannot move forward.

[0055] For the technical solution provided by the present invention, when it is necessary to start the device to polish the casing body 4, first use the robotic arm 3 to fixedly clamp the casing body 4, and then start the first servo motor 107 to drive the lead screw 106 to rotate, thereby driving the first slider 104 to slide inside the first chute 103, and further driving the base 105 to move back and forth along the direction of the first chute 103 through the first slider 104. When the base 105 moves, the polishing mechanism 5, the limiting mechanism 6 and the propulsion mechanism 7 on the top of the base 105 move synchronously.

[0056] Next, when it is necessary to adjust the angle between the first polisher 51 and the second polisher 52, start the first hydraulic cylinder 609 to drive the first cross plate 607 to move upward, thereby driving the second positioning rod 610 at the bottom of the first cross plate 607 to move, and further driving the buffer pad 611 to disengage from the block 616. At this time, the block 616 disengages from the rack 601, and the rack 601 can freely move on one side of the first slide rail 603 and the second slide rail 604;

[0057] Then, start the second hydraulic cylinder 706 to push the piston plate 707 to move inside the first cavity 701. Since the inside of the first cavity 701, the second cavity 702 and the circular tube 703 are all filled with hydraulic oil, when the piston plate 707 moves, the hydraulic oil will uniformly apply a thrust to each piston rod 704 until the piston rod 704 is restricted and cannot move forward.

[0058] Subsequently, when the rack 601 moves to the designated position, start the first hydraulic cylinder 609 to drive the first cross plate 607 to press down, thereby driving the buffer pad 611 to fit with the block 616, and further driving the second tooth groove 617 at the bottom of the block 616 to engage with the first tooth groove 602 at the top of the rack 601. During the meshing process, the second slider 615 at the top of the block 616 will automatically move inside the second chute 614 to reduce the friction between the block 616 and the rack 601. At this time, the rack 601 is fixed, and the angle between the first polisher 51 and the second polisher 52 is adjusted.

[0059] Finally, when the casing body 4 needs to be polished, control the second servo motor 506 to start, drive the worm 505 to mesh with the worm wheel 507 for transmission, so as to drive the synchronous rotation of the rotating shaft 508 at the bottom of the worm wheel 507. When the rotating shaft 508 rotates, the triangular plate 509 rotates synchronously and drives the abrasive belt 513, the roller shaft 514 and the transmission shaft 515 to rotate around the rotating shaft 508, and the rotation angle is 120°. When initially polishing the casing body 4, the abrasive belt 513 with the lowest mesh number is used for rough machining, and then the abrasive belt 513 with higher mesh numbers is used for polishing in sequence. Moreover, the outer casings 501 on the first polisher 51 and the second polisher 52 are movably connected by the first positioning rod 516 and can rotate within the range of 0° to 20°, and can fit the casing body 4 for polishing under the cooperation of the limiting mechanism 6 and the pushing mechanism 7.

[0060] The present invention covers any substitutions, modifications, equivalent methods and solutions made on the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without these descriptions. In addition, in order to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0061] Those of ordinary skill in the art can understand that all or part of the steps in implementing the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as: ROM / RAM, magnetic disk, optical disc, etc.

[0062] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A device for polishing and grinding complex cavities of a casting casing, characterized in that, The machine tool comprises a machine tool body (1), a bottom plate (2) is arranged on one side of the machine tool body (1), a mechanical arm (3) is arranged on the top of the bottom plate (2), a casing body (4) is fixedly mounted on one side of the mechanical arm (3), a grinding mechanism (5) is arranged on one side of the casing body (4), a limiting mechanism (6) is arranged on one side of the grinding mechanism (5), and a propulsion mechanism (7) is arranged on one side of the limiting mechanism (6); A grinding mechanism (5), the grinding mechanism (5) comprising a first grinder (51) and a second grinder (52), the first grinder (51) and the second grinder (52) being arranged on one side of a casing body (4), the first grinder (51) and the second grinder (52) both comprising a housing (501), a first twisting block (502), a second twisting block (503), a side plate (504), a worm (505), a second servo motor (506) and a worm wheel (507), the housing (501) being arranged on one side of a limiting mechanism (6), the first twisting block (502) being fixedly connected to one side of the housing (501), A second twisting block (503) is fixedly connected to the other side of the housing (501), a side plate (504) is fixedly connected to the top of the housing (501), a worm (505) is movably mounted on one side of the side plate (504), the worm (505) is fixedly mounted on the output end of a second servo motor (506), the second servo motor (506) is fixedly mounted on the top of the housing (501), a worm wheel (507) is meshed and driven on one side of the worm (505), the second servo motor (506) is electrically connected to a time relay, and the output end of the second servo motor (506) has the same rotation speed each time it is started; The first sander (51) and the second sander (52) further comprise a rotating shaft (508), a triangular plate (509), a third servo motor (510), a first gear (511), a second gear (512), an abrasive belt (513), a roller shaft (514), a transmission shaft (515) and a first positioning rod (516); the rotating shaft (508) is fixedly connected to the bottom of the worm gear (507); the triangular plate (509) is fixedly mounted on the top and bottom of the rotating shaft (508); the third servo motor (510) is arranged at the bottom of the triangular plate (509); the first gear (511) is fixedly mounted on the output end of the third servo motor (510); one side of the first gear (511) is meshed and transmitted with the second gear (512); one side of the second gear (512) is fixedly connected to the roller shaft (514); the roller shaft (515) A sanding belt (513) is driven on one side of the first grinder (514), a transmission shaft (515) is driven on one side of the sanding belt (513), the first positioning rod (516) is movably sleeved on one side of the first twisting block (502), the sanding belt (513) is divided into three groups, and the mesh number of each group of sanding belts (513) is different, the third servo motor (510) is fixedly mounted on the bottom of the housing (501), the third servo motors (510) inside the first grinder (51) and the second grinder (52) are both controlled in linkage through a parallel circuit, the first twisting block (502) on the first grinder (51) is movably connected to the second twisting block (503) on the second grinder (52) through the first positioning rod (516), and the maximum rotation angle of the adjacent housings (501) on the first grinder (51) and the second grinder (52) is 20°.

2. The device for polishing and grinding the complex cavity of a casting casing according to claim 1, wherein, The machine tool body (1) comprises a support block (101), a top plate (102), a first slide groove (103), a first slider (104), a base (105), a screw rod (106) and a first servo motor (107); the support block (101) is arranged on one side of the bottom plate (2); the top plate (102) is fixedly mounted on the top of the support block (101); the top of the top plate (102) is provided with a first slide groove (103); the first slider (104) is movably mounted inside the first slide groove (103); the top of the first slider (104) is fixedly mounted with a base (105); a screw rod (106) is threadedly sleeved on one side of the first slider (104); the screw rod (106) is fixedly mounted on the output end of the first servo motor (107); the first servo motor (107) is fixedly mounted on one side of the top plate (102); and the base (105) is fixedly mounted on the bottom of a limiting mechanism (6).

3. The device for polishing and grinding complex cavities of a casting casing according to claim 1, characterized in that, The limiting mechanism (6) includes a rack (601), a first tooth groove (602), a first slide rail (603), a second slide rail (604), a first limiting groove (605), a second limiting groove (606), a first cross plate (607), a positioning plate (608) and a first hydraulic cylinder (609). The rack (601) is fixedly connected to one side of the housing (501). A first tooth groove (602) is formed at the top of the rack (601). A first slide rail (603) is movably connected to one side of the rack (601). A second slide rail (604) is movably connected to the other side of the rack (601). A first limiting groove (605) is formed at the top of the second slide rail (604). A second limiting groove (606) is formed on one side of the second slide rail (604), and the second limiting groove (606) penetrates the second slide rail (604). A positioning plate (608) is fixedly installed at the top of the second slide rail (604). A first hydraulic cylinder (609) is fixedly installed at the top of the positioning plate (608). The output end of the first hydraulic cylinder (609) is fixedly installed with a first cross plate (607).

4. A device for polishing and grinding a complex cavity of a casting casing according to claim 1, characterized in that The limiting mechanism (6) further includes a second positioning rod (610), a buffer pad (611), a third slide rail (612), a first limiting hole (613), a second chute (614), a second slider (615), a clamping block (616) and a second tooth groove (617). The second positioning rod (610) is fixedly installed at the bottom of the first cross plate (607). A buffer pad (611) is fixedly connected to the bottom of the second positioning rod (610). The buffer pad (611) is movably sleeved on one side of the third slide rail (612). A first limiting hole (613) is formed at the top of the third slide rail (612). A second chute (614) is formed at the bottom of the third slide rail (612). A second slider (615) is movably connected inside the second chute (614). The bottom of the second slider (615) is fixedly connected with a clamping block (616). A second tooth groove (617) is formed at the bottom of the clamping block (616).

5. The device for polishing and grinding complex cavities of a casting casing according to claim 4, wherein, The second tooth groove (617) is meshed and connected to the top of the rack (601). The buffer pad (611) is movably connected to the top of the clamping block (616). The height of the second positioning rod (610) is greater than the height of the third slide rail (612). The first limiting hole (613) penetrates the third slide rail (612). The clamping blocks (616) are all arranged at the bottom of the first cross plate (607), and each group of clamping blocks (616) is meshed with the rack (601) respectively.

6. The device for polishing and grinding the complex cavity of a casting casing according to claim 3, characterized in that, The first cross plate (607) is movably installed inside the first limiting groove (605), and a plurality of limiting columns are arranged on the first cross plate (607). A sliding sleeve is movably installed at the connection between the first cross plate (607) and the limiting columns.

7. The device for polishing and grinding the complex cavity of a casting casing according to claim 1, wherein The propulsion mechanism (7) includes a first cavity (701), a second cavity (702), a circular tube (703), a piston rod (704), a sealing plate (705), a second hydraulic cylinder (706), a piston plate (707), a second limiting hole (708), a positioning column (709), and a stopper (710). The first cavity (701) is fixedly installed at the top of the base (105). One side of the first cavity (701) communicates with the second cavity (702). One side of the second cavity (702) communicates with the circular tube (703). The piston rod (704) is movably sleeved inside the circular tube (703). One side of the first cavity (701) is fixedly connected to the sealing plate (705). A second hydraulic cylinder (706) is fixedly installed on one side of the sealing plate (705). The output end of the second hydraulic cylinder (706) is fixedly installed with the piston plate (707). Second limiting holes (708) are formed on both the left and right sides of the piston plate (707), and the second limiting holes (708) penetrate through the piston plate (707). A positioning column (709) is movably sleeved on one side of the second limiting hole (708). A stopper (710) is fixedly sleeved on one side of the first cavity (701).

8. A device for polishing and grinding complex cavities of a casting casing according to claim 7, characterized in that, The stopper (710) is movably connected to one side of the piston plate (707). The positioning column (709) is fixedly installed on one side of the stopper (710). The circular tube (703), the piston rod (704), the second cavity (702), the first cavity (701), and the sealing plate (705) form a sealed cavity, and the inside of the sealed cavity is filled with hydraulic oil.

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