A grinding and polishing device for metal die castings

Abstract

The invention provides a grinding and polishing device for metal die-castings, belonging to the technical field of casting polishing equipment. The grinding and polishing device for metal die-castings comprises: a workbench, a turntable is rotatably connected to the workbench, and also comprises a fixing component, a grinding part, a polishing part and a synchronization structure; the fixing components are no less than three, and no less than three fixing components are arranged in a circular array on the turntable, and the fixing components are used to clamp and fix the die-castings and can drive the die-castings to move; the extension and retraction of the polishing part are promoted by the outer contour of the die-castings, and the grinding part and the polishing part are synchronously extended and retracted in coordination with the action of the synchronization structure, so that when the device is grinding the die-castings, the die-castings can be polished according to the contour of the die-castings during polishing, and the device avoids the situation that it is difficult to control the manual grinding force.

Description

Technical Field

[0001] The invention belongs to the technical field of casting polishing equipment, and in particular relates to a grinding and polishing device for metal die castings. Background Art

[0002] Polishing is an important step in the die casting manufacturing process, which is used to improve the surface quality and finish of the die casting. Traditional polishing equipment can only polish one side or one part of the die casting, and cannot fully meet the needs of multi-side or overall polishing.

[0003] A Chinese patent with authorization announcement number CN117381639B discloses a linkage internal and external polishing equipment for die-casting molding, including a base platform, a base driving rod is fixed to the bottom center of the base platform, the base platform is connected to a reduction motor through the driving rod, an external polishing mounting frame is arranged above the base platform, an internal polishing mounting frame is arranged above the base platform, and also includes: an external surface polishing part installed on the external polishing mounting frame, the external surface polishing part includes an external polishing assembly and an external transverse driving assembly that can drive the external polishing assembly to move.

[0004] In the refined process of die casting production, the initial deburring process is an indispensable key link before polishing. This step is to carefully remove excess material residues and sharp edges on the surface of the die casting to ensure that subsequent processing can be carried out on a smoother and unobstructed base surface. However, it is worth noting that the above technical solutions, whose core focus is on achieving a high degree of surface smoothness and gloss through physical and mechanical means, do not directly cover the critical deburring step before polishing.

[0005] Since the presence of burrs not only affects the appearance quality of the product, but may also interfere with the subsequent processing process and even cause safety hazards during use, it is particularly necessary to configure efficient burr removal equipment in the process of pursuing high-quality die castings. However, this measure increases the cost of equipment investment. Summary of the invention

[0006] The purpose of the present invention is to provide a grinding and polishing device for metal die castings, aiming to solve the problem that a linkage internal and external polishing equipment for die casting molding in the prior art can only polish the die castings, but cannot achieve integrated grinding and polishing.

[0007] To achieve the above object, the present invention provides the following technical solution: A grinding and polishing device for metal die castings, comprising: a workbench, a turntable rotatably connected to the workbench, a fixing assembly, a grinding component, a polishing component and a synchronization structure;

[0008] There are no less than three fixing components, and no less than three fixing components are arranged in a circular array on the turntable. The fixing components are used to clamp and fix the die casting and can drive the die casting to move;

[0009] The grinding component and the polishing component are used for grinding and polishing the die casting, the working ends of the grinding component and the polishing component are respectively directed to a fixed component, and the grinding component and the polishing component are arranged on the workbench through a round table;

[0010] The synchronization structure is arranged on the round table and is used for synchronous extension and retraction of the grinding part and the polishing part;

[0011] The synchronization structure includes a first gear and racks arranged on the grinding part and the polishing part, both racks are meshed with the first gear, a rotating column is arranged on the circular platform, the first gear is arranged on the rotating column, and a first elastic member is arranged on the rotating column, and the first elastic member can drive the rotating column to rotate.

[0012] The beneficial effects of the present invention are as follows: the grinding component and the polishing component are simultaneously against the outer surface of the die-casting, and the outer contour of the die-casting pushes the extension and contraction of the polishing component, and the grinding component and the polishing component are extended and contracted synchronously in cooperation with the action of the synchronization structure, so that when the device is grinding the die-casting, it can grind the die-casting according to the contour of the die-casting during polishing, avoiding the situation where it is difficult to control the manual grinding force.

[0013] A further technical solution of the present invention is that a swing structure is provided on the workbench, and the swing structure can drive the corresponding fixed components of the grinding part and the polishing part to swing on the turntable.

[0014] A further technical solution of the present invention is that the swing structure includes a track, a swing block, a toggle member and a driving member, the fixed component rotates on a turntable, the fixed component is provided with a sliding column that can slide in the track, the track is set on a workbench, the swing block can be connected with the track and can form a complete circular slide groove, the workbench is provided with a slide rail at the swing block, and the toggle member can drive the swing block to slide on the slide rail.

[0015] The effect is that the fixed component swings a certain angle during the process, making it easier to grind and polish the side wall of the die casting.

[0016] A further technical solution of the present invention is that the driving member includes a hydraulic cylinder and two connecting rods, the hydraulic cylinder is arranged on a workbench, one end of the two connecting rods is hinged to the telescopic end of the hydraulic cylinder, and the end of the connecting rod away from the hydraulic cylinder can be hinged to the toggle member.

[0017] The effect is that by driving two toggle members to move simultaneously through a hydraulic cylinder, the reversal angle of the die casting can be kept consistent, and the reversal action can also be kept consistent.

[0018] A further technical solution of the present invention is that an adjustment component is provided on the circular table, and the adjustment component can adjust the grinding force of the grinding part and the polishing part on the die-casting. The adjustment component includes a rotating drum and a driving structure. One end of the first elastic part away from the rotating column is fixedly connected to the rotating drum, and the driving structure can drive the rotating drum to rotate.

[0019] The effect is that by adjusting the grinding force, incomplete grinding can be avoided, while also avoiding the loss of precision caused by excessive grinding force.

[0020] A further technical solution of the present invention is that the driving structure includes a toothed disk, a second gear, a second elastic member and a limit disk, the toothed disk is arranged on the rotating cylinder, the second gear is meshed with the toothed disk, a rotating rod is arranged on the second gear, the limit disk slides on the outer surface of the rotating rod and can rotate with the rotating rod, the second elastic member can push the limit disk close to the table, the limit disk is provided with a first slot, and the table is provided with a first block adapted to the first slot.

[0021] A further technical solution of the present invention is that a limit plate is provided on the grinding component, a baffle is provided on the circular platform, and the limit plate can abut against the baffle.

[0022] The effect is that the limiting plate and the baffle plate can prevent the grinding part and the polishing part from being separated from the round table, and the depth of cutting into the contour of the die casting can be adjusted.

[0023] A further technical solution of the present invention is that the slide rail is in an arc shape, and the slide rail is coaxial with the rotation axis of the fixed component.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The grinding part and the polishing part are simultaneously pressed against the outer surface of the die-casting, and the outer contour of the die-casting pushes the extension and contraction of the polishing part. The grinding part and the polishing part are extended and contracted synchronously with the action of the synchronous structure. When the device is grinding the die-casting, it can grind the die-casting according to the contour of the die-casting during polishing. The device avoids the situation that it is difficult to control the manual grinding force.

[0026] 2. By controlling the angle of the fixed component, the angle of the die casting during grinding and polishing can be controlled, making it easier to grind and polish the side wall of the die casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0029] Figure 2 It is an axonometric cross-sectional view of a specific embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of a fixing component in a specific embodiment of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the installation of the bottom plate and the sliding frame in a specific embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a sliding frame and a mounting component in a specific embodiment of the present invention;

[0033] Figure 6 It is a structural schematic diagram of a driving structure in a specific embodiment of the present invention;

[0034] Figure 7 It is a structural diagram of a synchronization structure in a specific embodiment of the present invention;

[0035] Figure 8 It is a schematic diagram of the internal structure of the truncated cone in a specific embodiment of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of a swing structure in a specific embodiment of the present invention;

[0037] Fig.10 It is a structural schematic diagram of a driving member in a specific embodiment of the present invention;

[0038] Fig.11 for Fig. 9 A schematic diagram of the structure enlargement at the center A;

[0039] Fig.12 It is a schematic diagram of the structure of the swing block in a specific embodiment of the present invention.

[0040] In the figure: 1, workbench; 2, fixing assembly; 21, bottom plate; 22, sliding frame; 23, mounting component; 24, clamping component; 241, clamping plate; 242, third driving component; 25, first driving component; 26, second driving component; 3, grinding component; 31, limit plate; 4, polishing component; 5, synchronous structure; 51, first gear; 52, rack; 53, round table; 531, baffle; 6, first elastic member; 7, adjustment component; 71, rotating Column; 72, rotating drum; 73, driving structure; 731, toothed disc; 732, second gear; 733, second elastic member; 734, limiting disc; 735, rotating rod; 736, first clamping groove; 8, rotating disc; 9, swinging structure; 91, track; 92, swinging block; 921, second clamping groove; 93, toggle member; 931, clamping column; 94, driving member; 941, hydraulic cylinder; 942, connecting rod; 95, sliding column; 96, sliding rail; 961, second clamping block. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 10 The present invention provides the following technical solutions: a grinding and polishing device for metal die castings, comprising a workbench 1, a fixed component 2, a grinding component 3 and a polishing component 4, wherein the fixed component 2, the grinding component 3 and the polishing component 4 are all installed on the workbench 1, wherein there are no less than three fixed components 2, and the specific number needs to be selected according to the specific usage situation, wherein one fixed component 2 can be used for loading and unloading, the fixed component 2 is used to clamp the die casting, and can drive the die casting to move in the up, down, left and right directions, a plurality of fixed components 2 are arranged in a vertical annular array on the workbench 1, and can revolve around the workbench 1, the grinding component 3 and the polishing component 4 are located in the middle of the plurality of fixed components 2, and the grinding component 3 and the polishing component 4 are mutually The grinding component 3 and the polishing component 4 are arranged crosswise so that the working ends of the grinding component 3 and the polishing component 4 point to a fixed component 2 respectively (it should be noted that the grinding component 3 and the polishing component 4 do not point to the same fixed component 2), and the working ends of the grinding component 3 and the polishing component 4 point to the same position of the die-casting, and the grinding component 3 and the polishing component 4 can slide on the workbench 1 so that the grinding component 3 and the polishing component 4 can be close to the fixed component 2, and a synchronization structure 5 is arranged at the intersection of the grinding component 3 and the polishing component 4, and the synchronization structure 5 can drive the grinding component 3 and the polishing component 4 to slide synchronously on the workbench 1 for the same distance, so that the grinding component 3 and the polishing component 4 can contact the die-casting at the same time.

[0043] When the present invention is in use, the die-casting parts need to be installed on the fixed component 2 in sequence first, and then the die-casting parts are driven to rotate by the fixed component 2. The fixed component 2 will first drive the die-casting parts to move to the position pointed to by the grinding component 3, and then stop rotating, and clamp the die-casting sample on the fixed component 2 pointed to by the polishing component 4, and then the two fixed components 2 pointed to by the grinding component 3 and the polishing component 4 will drive the die-casting parts and the die-casting samples to synchronously follow a serpentine route or a circular route, and the outer surface of the die-casting sample will be against the polishing component 4, so that the polishing component 4 can be extended and retracted according to the outer contour of the die-casting sample, and the grinding component 3 can be synchronously extended and retracted with the polishing component 4 through the synchronization structure 5, so that the polishing component 3 can be adjusted according to the contour of the die-casting sample. The die-casting is ground and deburred. When the die-casting is ground, multiple fixed components 2 rotate to move the ground die-casting to the position pointed to by the polishing component 4, and the new die-casting blank is moved back to the position pointed to by the polishing component 3, and then stops rotating (it should be noted that the rotation angle of the fixed component 2 is related to the number of fixed components 2. When there are three fixed components 2, the fixed component 2 rotates 120 degrees and stops), and the two fixed components 2 pointed to by the polishing component 3 and the polishing component 4 drive the die-casting to move synchronously along a serpentine route or a circular route again, so that the polishing component 4 can polish the die-casting while the polishing component 3 can also perform better polishing on the die-casting blank, so that the device avoids the situation where the manual grinding force is difficult to control.

[0044] See also Figure 8 In order to enable the polishing component 4 to expand and contract according to the outer contour of the die-casting, a first elastic component 6 is provided on the synchronization structure 5. When the polishing component 4 encounters a convex contour of the die-casting, the first elastic component 6 is compressed and stores force. When the polishing component 4 encounters a concave contour, the first elastic component 6 can push the end of the polishing component 4 into the concave contour for polishing.

[0045] See also Figure 3-Figure 5The fixing assembly 2 includes a bottom plate 21, a sliding frame 22, a mounting component 23 and a clamping component 24, wherein the bottom plate 21 is rectangular, mounted on the workbench 1, and can revolve on the workbench 1, the sliding frame 22 is arranged on the bottom plate 21, and can slide on the bottom plate 21. In order to better enable the sliding frame 22 to slide on the bottom plate 21, the sliding frame 22 and the bottom plate 21 can limit the direction by means of a slide groove slider, etc., so that the sliding frame 22 slides on the bottom plate 21 more stably. A first driving assembly 25 is arranged on the bottom plate 21 for driving the sliding frame 22 to slide on the bottom plate 21. The first driving assembly 25 is composed of a motor and a lead screw. The two ends of the middle lead screw can rotate on the bottom plate 21, and the lead screw is threadedly connected to the sliding frame 22. The motor is installed on the bottom plate 21, and the output end is connected to the lead screw. When the motor is started, it can drive the lead screw to rotate. The lead screw is threadedly connected to the sliding frame 22. Therefore, when the lead screw rotates, it can drive the sliding frame 22 to slide on the bottom plate 21. In order to enable the sliding frame 22 to slide back and forth on the bottom plate 21, the lead screw can be a reciprocating lead screw, or the forward and reverse directions of the motor can be controlled separately to change the rotation direction of the lead screw, so that the sliding frame 22 can be controlled to slide back and forth on the bottom plate 21.

[0046] The mounting component 23 is similar to the above-mentioned one, and can slide on the sliding frame 22 through structures such as a slide groove and a slider, so that the mounting component 23 can slide up and down on the sliding frame 22. A second driving component 26 is arranged on the sliding frame 22. The second driving component 26 has the same structure and principle as the first driving component 25, and is driven by the cooperation between the motor and the lead screw, which will not be described in detail here.

[0047] The clamping component 24 is installed on the mounting component 23, and can clamp the die-casting and fix it. The clamping component 24 includes two clamping plates 241, which can slide up and down on the mounting component 23. The two clamping plates 241 can move relative to each other, so that the two clamping plates 241 can clamp and fix the die-casting when they are close to each other. In order to achieve the effect of relative movement of the two clamping plates 241, a third driving assembly 242 is arranged on the mounting component 23. The third driving assembly 242 is composed of a bidirectional lead screw and a motor. The two clamping plates 241 are respectively installed at both ends of the bidirectional lead screw, so that when the motor drives the bidirectional lead screw to rotate, the two clamping plates 241 can simultaneously approach or move away from each other, thereby clamping and fixing the die-casting, and then driving the die-casting to move in multiple directions, so that the die-casting can be polished more comprehensively.

[0048] See also Figure 7 and Figure 8The synchronization structure 5 includes a first gear 51 and a rack 52 arranged on the grinding component 3 and the polishing component 4. The first gear 51 and the two racks 52 are meshed with each other. A round table 53 is arranged on the workbench 1, which can make the grinding component 3 and the polishing component 4 have a certain distance from the table surface of the workbench 1, so that the die casting has enough space to move downward during polishing. The first gear 51 and the rack 52 are both arranged on the round table 53, and a slide groove is arranged on the upper surface of the round table 53, so that the rack 52 can slide inside the slide groove. , so that the sliding of the rack 52 is more stable, and at the same time, the rack 52 is prevented from being out of mesh with the first gear 51. In order to avoid interference, the two racks 52 are arranged crosswise and stacked, and the racks 52 are arranged parallel to the rotation axes of the grinding component 3 and the polishing component 4. The first gear 51 can rotate on the round table 53. Therefore, when the first gear 51 rotates, it can drive the two racks 52 to slide on the round table 53 at the same time, so that the two racks 52 can drive the grinding component 3 and the polishing component 4 to extend and retract synchronously on the round table 53 at the same time;

[0049] An adjustment component 7 is provided inside the truncated table 53, and the adjustment component 7 can adjust the grinding force of the grinding component 3 and the polishing component 4 on the die-casting. The adjustment component 7 includes a rotating column 71, a rotating drum 72 and a driving structure 73. The rotating column 71 is provided at the bottom of the first gear 51 and is fixedly connected to the first gear 51. The rotating column 71 extends to the inside of the truncated table 53. One end of the first elastic member 6 is fixedly connected to the rotating column 71. The first elastic member 6 is a spring or a torsion spring. The other end of the first elastic member 6 is connected to the rotating drum 72. The rotating drum 72 can rotate inside the truncated table 53. The driving structure 73 is installed on the truncated table 53, and can drive the rotating drum 72 to rotate, and can lock the rotation angle of the rotating drum 72 at the same time.

[0050] When in use, the rotation of the driving structure 73 can drive the rotating drum 72 to rotate. When the rotating drum 72 rotates, the first elastic member 6 can store energy or release energy. When the first elastic member 6 stores energy, the torque applied by the first elastic member 6 to the rotating column 71 will increase. When the torque of the rotating column 71 increases, the force acting on the driving grinding component 3 and the polishing component 4 will also increase, thereby achieving the effect of increasing the grinding force of the grinding component 3 and the polishing component 4 on the die-casting. When it is necessary to reduce the grinding force on the die-casting, the driving structure 73 can be rotated in the opposite direction according to the above working principle. The device avoids the problem of insufficient burr removal due to insufficient grinding force, and also avoids the situation of loss of precision of the die-casting due to excessive grinding force.

[0051] See also Figure 6-Figure 8The driving structure 73 includes a toothed disc 731, a second gear 732, a second elastic member 733 and a limit disc 734, wherein the toothed disc 731 is mounted on the outer surface of the rotating drum 72 and is coaxially arranged with the rotating drum 72, the second gear 732 and the toothed disc 731 are meshed with each other, so that the second gear 732 can drive the toothed disc 731 to rotate when rotating, and a rotating rod 735 extending to the outside of the round table 53 is arranged on the second gear 732, and the rotating rod 735 is coaxially arranged with the second gear 732. The cross section of the part outside the truncated table 53 is rectangular, and the middle part of the limiting plate 734 slides on the rectangular cross section of the rotating rod 735, so that the limiting plate 734 can drive the rotating rod 735 to rotate when it rotates. When in use, the rotating rod 735 can be driven to rotate by rotating the limiting plate 734, and the rotating rod 735 can drive the second gear 732 to rotate, so that the second gear 732 can drive the rotating drum 72 to rotate through the toothed plate 731, and then the storage force of the first elastic member 6 can be adjusted;

[0052] The first stopper 736 is provided with a first clamping block 733 which is adapted to fit the first clamping block 736. The second stopper 733 is provided on the rotating rod 735, which can push the limiting plate 734 towards the first clamping block so that the first clamping block can be clamped into the first clamping block 736. The first clamping block 733 can prevent the limiting plate 734 from rotating by the action of the first clamping block 736 and the first clamping block, thereby limiting the rotation of the rotating drum 72. The second elastic member 733 is a compression spring, one end of which is against the limiting plate 734, and the other end is against the protrusion provided on the rotating rod 735. In order to facilitate the rotation of the limiting plate 734, a handle is installed on the limiting plate 734, and the limiting plate 734 can be driven to rotate by turning the handle.

[0053] When the grinding force needs to be adjusted, the handle is pulled to move the first slot 736 in the limit plate 734 away from the first block, and then the limit plate 734 is rotated by turning the handle. When the limit plate 734 rotates, it can drive the rotating rod 735 and the second gear 732 to rotate, thereby driving the rotating drum 72 to rotate. When the rotating drum 72 rotates, the grinding force can be adjusted. Then, the handle is loosened to allow the second elastic member 733 to push the limit plate 734 to clamp the first slot 736 into the first block, thereby limiting the rotation of the limit plate 734.

[0054] See also Fig.11A limit plate 31 is provided on the grinding component 3, and a baffle 531 is provided on the truncated table 53 by means of screws. The limit plate 31 can be abutted against the baffle 531, so as to limit the position of the grinding component 3 in a natural state. By rotating the screw, the position of the baffle 531 can be adjusted, so that the position of the grinding component 3 in a natural state can be adjusted, so as to prevent the grinding component 3 and the polishing component 4 from being separated from the truncated table 53, and at the same time, the depth of cutting into the contour of the die-casting can be adjusted.

[0055] See also Figure 9-12 A turntable 8 is provided on the workbench 1, and the turntable 8 can rotate on the workbench 1. A motor is provided on the workbench 1, and a third gear is provided at the output end of the motor. A gear ring meshing with the third gear is provided on the turntable 8. When the motor is started, the third gear can be driven to rotate. When the third gear rotates, the gear ring can be driven to rotate, thereby driving the turntable 8 to rotate. The bottom of the fixed component 2 can rotate on the turntable 8. A swing structure 9 is provided on the workbench 1. The swing structure 9 can only drive the fixed components 2 corresponding to the grinding component 3 and the polishing component 4 to swing on the turntable 8;

[0056] The swing structure 9 includes a track 91, a swing block 92, a toggle member 93 and a driving member 94. A slide post 95 is fixedly connected to the bottom of the fixed component 2. One end of the slide post 95 passes through the turntable 8 and slides inside the track 91. There are two swing blocks 92, which correspond to the grinding component 3 and the polishing component 4 respectively. A slide groove is also arranged on the swing block 92. The slide groove can be connected with the track 91, so that the track 91 and the slide grooves on the two swing blocks 92 form a complete annular slide groove, so that the slide post 95 can slide into the slide groove of the swing block 92 through the slide groove in the track 91. When the slide post 95 is located on the track 91, the fixed component 2 is in a vertical state, and a slide rail 96 is arranged on the workbench 1. The slide rail 96 is semicircular and concentric with the rotation axis of the fixed component 2. The swing block 92 can slide along the slide rail 96. In order to prevent the swing block 92 from detaching from the slide rail 96, a second clamping groove 921 is also provided on the swing block 92, and a second clamping block 961 is provided on the slide rail 96. The second clamping groove 921 and the second clamping block 961 cooperate with each other to limit the swing block 92, so that the swing block 92 can only slide along the slide rail 96 and cannot detach from the slide rail 96.

[0057] The toggle member 93 includes two clamping columns 931, and the swing block 92 is located between the two clamping columns 931, and the toggle member 93 can slide on the workbench 1. When the toggle member 93 slides, the clamping column 931 can push the swing block 92 to slide on the slide rail 96. In order to enable the two slide rails 96 to achieve the effect of synchronous sliding, the driving member 94 includes a hydraulic cylinder 941, which is installed on the workbench 1. Two connecting rods 942 are hinged at the telescopic end of the hydraulic cylinder 941. The connecting rods 942 are symmetrically arranged with respect to the hydraulic cylinder 941. The end of the connecting rod 942 away from the hydraulic cylinder 941 can be hinged to one end of the toggle member 93. Therefore, when the hydraulic cylinder 941 is extended and retracted, the two toggle members 93 can be pushed to slide on the workbench 1 at the same time through the connecting rod 942, and then the swing block 92 can be driven to slide inside the slide rail 96 at the same time.

[0058] When in use, first slide the slide post 95 on the fixed component 2 into the slide groove of the swing block 92, and then the hydraulic cylinder 941 can simultaneously push the two swing blocks 92 to slide inside the slide rail 96, so that the swing block 92 drives the fixed component 2 to rotate a certain angle through the slide post 95, and then stops, so that the angle of the fixed component 2 remains unchanged. Then, when it is necessary to grind the side wall of the die-casting, the angle of the fixed component 2 changes, so that the side wall of the die-casting becomes inclined, so the side wall of the die-casting can form a certain angle with the extension and contraction direction of the grinding component 3. At this time, when the die-casting moves, the grinding component 3 can be pushed to extend and retract through the inclined side wall, so that the grinding component 3 can move relative to the inclined surface of the die-casting, so that the inclined surface of the die-casting can be polished. After the side wall is polished, the fixed component 2 is reset to make the fixed component 2 vertical, and then the next fixed component 2 is moved to the inside of the swing block 92, so that the angle of the die-casting during grinding and polishing can be controlled, which makes it easier to grind and polish the side wall of the die-casting.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A grinding and polishing device for metal die castings, comprising: A workbench (1), wherein a turntable (8) is rotatably connected to the workbench (1), and the workbench (1) further comprises a fixing component (2), a grinding component (3), a polishing component (4) and a synchronization structure (5); the fixing components (2) are not less than three, and not less than three fixing components (2) are arranged in a circular array on the turntable (8); the fixing components (2) are used to clamp and fix the die-casting and can drive the die-casting to move; the grinding component (3) and the polishing component (4) are used to grind and polish the die-casting, and the working ends of the grinding component (3) and the polishing component (4) respectively point to one of the fixing components (2), and the grinding component (3) and the polishing component (4) are arranged on the workbench (1) via a round table (53). The synchronous structure (5) is arranged on the truncated table (53) and is used for synchronously extending and retracting the grinding component (3) and the polishing component (4); the synchronous structure (5) comprises a first gear (51) and racks (52) arranged on the grinding component (3) and the polishing component (4); the two racks (52) are meshed with the first gear (51); a rotating column (71) is arranged on the truncated table (53); the first gear (51) is arranged on the rotating column (71); the rotating column (71) is provided with a first elastic member (6); the first elastic member (6) can drive the rotating column (71) to rotate; the workbench (1) is provided with a swinging structure (9); the swinging structure (9) can drive the grinding component (3) and the polishing component (4) to rotate relative to each other. The fixed component (2) is swung on the turntable (8); the swing structure (9) comprises a track (91), a swing block (92), a toggle member (93) and a driving member (94); the fixed component (2) is rotatably arranged on the turntable (8); the fixed component (2) is provided with a slide column (95) capable of sliding in the track (91); the track (91) is arranged on the workbench (1); the swing block (92) can be connected with the track (91) and can form a complete annular slide groove; the workbench (1) is provided with a slide rail (96) at the swing block (92); the toggle member (93) can drive the swing block (92) to slide on the slide rail (96); the driving member (94) comprises a hydraulic cylinder ( 941) and two connecting rods (942), the hydraulic cylinder (941) being arranged on the workbench (1), one end of the two connecting rods (942) being hinged to the telescopic end of the hydraulic cylinder (941), and one end of the connecting rod (942) away from the hydraulic cylinder (941) being hinged to the toggle member (93); an adjustment component (7) being arranged on the truncated table (53), the adjustment component (7) being capable of adjusting the grinding force of the grinding component (3) and the polishing component (4) on the die-casting, the adjustment component (7) comprising a rotating drum (72) and a driving structure (73), the end of the first elastic member (6) away from the rotating column (71) being fixedly connected to the rotating drum (72), and the driving structure (73) being capable of driving the rotating drum (72) to rotate;The driving structure (73) comprises a toothed disc (731), a second gear (732), a second elastic member (733) and a limiting disc (734); the toothed disc (731) is arranged on the rotating cylinder (72); the second gear (732) is meshed with the toothed disc (731); a rotating rod (735) is arranged on the second gear (732); the limiting disc (734) is slidably arranged on the outer surface of the rotating rod (735) and can rotate with the rotating rod (735); the second elastic member (733) can push the limiting disc (734) to approach the round table (53); a first clamping groove (736) is arranged on the limiting disc (734); and a first clamping block adapted to the first clamping groove (736) is arranged on the round table (53). ; A limit plate (31) is provided on the grinding component (3), a baffle (531) is provided on the truncated table (53), and the limit plate (31) can abut against the baffle (531); the slide rail (96) is in an arc shape, and the slide rail (96) is coaxial with the rotation axis of the fixed component (2); the fixed component (2) comprises a bottom plate (21), a sliding frame (22), a mounting component (23) and a clamping component (24); the clamping component (24) is arranged on the mounting component (23) and is used for clamping the workpiece; the mounting component (23) is mounted on the sliding frame (22) and is used for adjusting the vertical height of the workpiece; the sliding frame (22) is arranged on the bottom plate (21) and is used for adjusting the horizontal direction of the workpiece. ;

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