Metal casting surface sand cleaning device

Abstract

The utility model discloses a metal casting surface sand cleaning device which comprises a base, a sand cleaning device body is arranged on one side of the base and comprises a connecting rod, a mounting bin, a connecting rope, a rotating frame, a polishing block and an adaptive spring, the two ends of the connecting rod are rotationally connected with the mounting bin and the rotating frame, one end of the adaptive spring is connected with the connecting rod through the connecting rope, and the other end of the adaptive spring is connected with the polishing block. A quick clamping device is arranged on the mounting bin and comprises a quick clamping sleeve, a quick clamping rod, a quick clamping groove, a control sleeve, a quick clamping block, a rotating shaft, a receding groove and a control groove, the quick clamping groove is formed in the outer side of the quick clamping rod, the quick clamping block is mounted in the control groove through the rotating shaft, the receding groove is formed in the side wall of the quick clamping sleeve, and the control groove is formed in the inner side of the control sleeve; a locking mechanism is installed on the outer side of the quick clamping sleeve, the locking mechanism comprises a locking sleeve, a moving block, a limiting block, a connecting spring and a movable wheel, the limiting block is installed on the outer side of the quick clamping sleeve, the movable wheel is installed on one side of the moving block, and the polishing device has the advantages of being convenient to operate, capable of conveniently replacing the polishing block and stable in fixation.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal casting surface sand cleaning technical field more specifically, it relates to a kind of metal casting surface sand cleaning device. BACKGROUND

[0002] In the field of metal casting surface sand cleaning, the convenience of sand cleaning and the stability of polishing block directly affect the processing efficiency and operation safety, however, the sand cleaning device on the current market still has many technical defects in practical application, these problems not only affect the sand cleaning effect, but also may cause operation failure and safety hazard.

[0003] The primary problem is poor operation convenience, the sand cleaning device in the prior art has significant defects: first, the sand cleaning of the cylindrical inner wall usually needs manual assistance, and manual operation is inefficient;Second, uniformity cannot be guaranteed during the sand cleaning process;In addition, the deficiencies of this design not only reduce the operation efficiency, but also may cause unstable sand cleaning quality due to improper manual operation, affecting the processing effect, increasing the labor intensity and operation time.

[0004] More prominent is the inconvenience of polishing block replacement, the sand cleaning device in the prior art has obvious problems: first, the polishing block is prone to wear after long-term use;Second, different processes require polishing blocks of different precision;Third, the installation and removal of polishing block require professional tools;In addition, the replacement process is tedious and time-consuming;Finally, the deficiencies of this design not only affect the efficiency of the equipment, but also may cause the quality of sand cleaning to decline due to untimely replacement, which not only reduces the adaptability of the equipment, but also increases the maintenance cost due to the inconvenience of operation, affecting the production progress.

[0005] The most critical is poor fixing stability, although some equipment achieves convenient replacement of polishing block through quick replacement mechanism, but there are serious problems: first, the fixing structure is simple in design, and the reliability is insufficient, there is continuous stress during polishing, and the vibration generated during sand cleaning operation easily causes the structure to loosen, which not only affects the operation safety, but also may cause the polishing block to fall off due to fixing failure, which not only reduces the service life of the equipment, but also may cause the equipment to stop running due to poor stability, affecting the processing quality and processing efficiency. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the problems existing in the prior art, the utility model provides a kind of metal casting surface sand cleaning device to solve the technical problems mentioned in the background art.

[0008] (II) Technical scheme

[0009] To achieve the above object, the utility model provides the following technical scheme: A metal casting surface sand cleaning device, including the base, one side of base is provided with sand cleaning device, sand cleaning device includes connecting rod, installation bin, connecting rope, rotating frame, polishing block and adaptation spring, both ends of connecting rod are rotated and are connected with installation bin and rotating frame, polishing block can be detachably installed in installation bin, one end of adaptation spring is connected with connecting rod through connecting rope, the other end of adaptation spring is connected with rotating frame through connecting rope, quick -release device is provided on installation bin, quick -release device includes quick -release sleeve, quick -release rod, quick -release slot, control sleeve, quick -release block, pivot, give -up slot and control groove, quick -release sleeve is detachably covered in quick -release rod outside, quick -release slot is opened in quick -release rod outside, control sleeve is rotatably installed in quick -release sleeve outside, quick -release block is rotatably installed in control groove through pivot, give -up slot is opened in quick -release sleeve side wall, control groove is opened in control sleeve inside, locking mechanism is installed on quick -release sleeve outside, locking mechanism includes locking sleeve, moving block, limit block, connecting spring and movable wheel, locking sleeve is movably installed on quick -release sleeve outside through screw thread, moving block is arranged in control sleeve side, limit block is fixedly installed on quick -release sleeve outside, the both ends of connecting spring are connected with adjacent two moving blocks respectively, movable wheel is rotatably installed in moving block side.

[0010] The utility model further sets up, movable frame is equipped on the base, motor is detachably equipped on the movable frame, motor output end is connected with rotating frame one end.

[0011] The utility model further sets up, hydraulic cylinder is detachably equipped on the base, hydraulic cylinder output end is connected with hydraulic rod, the other end of hydraulic rod is detachably connected with movable frame.

[0012] The utility model further sets up, support frame is detachably equipped on the base, limit frame is detachably equipped on the other side of base.

[0013] The utility model further sets up, a plurality of guide blocks are fixedly equipped on control sleeve side, guide slot is opened in moving block side, guide slot is adapted with guide block, ensure the stable movement of moving block.

[0014] The utility model further sets up, control spring is connected on quick -release block side, the other end of control spring is connected with control groove inner wall for contact type, and the setting of control spring ensures the stable use of quick -release block.

[0015] The utility model further sets up, the limit block is the cylindrical structure design.

[0016] The utility model further sets up, quick -release slot is opened in quick -release rod outside in annular structure, so that when installing, need not accurate alignment.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the metal casting surface sand cleaning device has the following beneficial effects:

[0019] 1. The sand cleaning device, through the precise cooperation of the connecting rod, the mounting bin, the connecting rope, the polishing block and the adaptive spring and the like, builds a flexible sand cleaning system, the rotation design of the connecting rod provides a basic adjustment, the elastic cooperation of the adaptive spring realizes automatic expansion, and the setting of the connecting rope ensures synchronous movement, this structure not only realizes automatic adaptation through the elastic mechanism, but also provides uniform stress through the linkage design, and ensures comprehensive sand cleaning through the rotation mechanism, effectively solves the problem of inconvenient manual operation of the traditional sand cleaning device, improves the sand cleaning efficiency, and realizes uniform processing.

[0020] 2. The quick clamping device, through the cooperative work of the quick clamping sleeve, the quick clamping rod, the quick clamping groove, the control sleeve, the quick clamping block, the rotating shaft, the accommodation groove and the control groove, forms a convenient replacement system, the detachable design of the quick clamping sleeve and the quick clamping rod provides a replacement basis, the cooperation of the control sleeve and the quick clamping block and the like realizes precise control, and the setting of the accommodation groove ensures smooth operation, this structure not only realizes quick replacement through the quick clamping mechanism, but also provides precise clamping through the control mechanism, and ensures convenient operation through the accommodation design, effectively solves the problem of complicated replacement of the polishing block of the traditional sand cleaning device, improves the maintenance efficiency, and realizes quick replacement.

[0021] 3. The locking mechanism, through the precise cooperation of the locking sleeve, the moving block, the limiting block, the connecting spring and the movable wheel, builds a reliable locking system, the threaded design of the locking sleeve provides a locking basis, the cooperation of the moving block, the limiting block and the movable wheel realizes position locking, and the setting of the connecting spring ensures automatic resetting, this structure not only realizes stable positioning through locking, but also provides smooth movement through the guide mechanism, and ensures reliable resetting through the elastic design, effectively solves the problem of unstable fixation of the traditional sand cleaning device, adapts to the vibration environment, and ensures operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the metal casting surface sand cleaning device in the utility model;

[0023] Figure 2 It is a structure schematic view of the rotating frame and the connecting rod part in the utility model;

[0024] Figure 3 It is a dispersed structure schematic view of the mounting bin and the polishing block part in the utility model;

[0025] Figure 4The utility model discloses a dispersed structure schematic diagram of locking sleeve, moving block and quick clamping sleeve part in the utility model.

[0026] Figure 5 The utility model discloses a cross section structure schematic diagram of quick clamping sleeve and control sleeve part.

[0027] In the drawing: 1, base, 2, connecting rod, 3, installation bin, 4, connecting rope, 5, polishing block, 6, adaptation spring, 7, quick clamping sleeve, 8, quick clamping rod, 9, quick clamping groove, 10, control sleeve, 11, quick clamping block, 12, pivot, 13, let position slot, 14, control groove, 15, locking sleeve, 16, moving block, 17, limit block, 18, connecting spring, 19, movable wheel, 20, moving frame, 21, motor, 22, hydraulic cylinder, 23, hydraulic rod, 24, support frame, 25, limit frame, 26, guide block, 27, guide groove, 28, control spring, 50, rotating frame. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as that generally understood by ordinary skilled in the art to which the present application belongs.

[0030] In the utility model, the orientation such as "up, down" is generally for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction, unless otherwise specified. Similarly, for the convenience of understanding and description, "left, right" is generally for the left and right shown in the drawing, and "inner, outer" refers to the inner and outer relative to the contour of each component, but the above orientation words are not used to limit the utility model.

[0031] Please refer to Figures 1-5The utility model relates to a metal casting surface sand cleaning device, including base 1, one side of base 1 is provided with sand cleaning device, sand cleaning device includes connecting rod 2, installation bin 3, connecting rope 4, rotating frame 50, polishing block 5 and adaptive spring 6, and the both ends of connecting rod 2 are rotatably connected with installation bin 3 and rotating frame 50 respectively, polishing block 5 is detachably installed in installation bin 3, one end of adaptive spring 6 is connected with connecting rod 2 through connecting rope 4, and the other end of adaptive spring 6 is connected with rotating frame 50 through connecting rope 4, and quick clamping device is provided on installation bin 3, and quick clamping device includes quick clamping sleeve 7, quick clamping rod 8, quick clamping slot 9, control sleeve 10, quick clamping block 11, pivot 12, let go of slot 13 and control slot 14, quick clamping sleeve 7 is detachably set on the outside of quick clamping rod 8, quick clamping slot 9 is set on the outside of quick clamping rod 8, control sleeve 10 is rotatably installed on the outside of quick clamping sleeve 7, quick clamping block 11 is rotatably installed in control slot 14 through pivot 12, let go of slot 13 is set on the side wall of quick clamping sleeve 7, control slot 14 is set on the inside of control sleeve 10, locking mechanism is installed on the outside of quick clamping sleeve 7, and locking mechanism includes locking sleeve 15, moving block 16, limiting block 17, connecting spring 18 and movable wheel 19, locking sleeve 15 is movably installed on the outside of quick clamping sleeve 7 through screw thread, moving block 16 is arranged on the side of control sleeve 10, limiting block 17 is fixedly installed on the outside of quick clamping sleeve 7, the both ends of connecting spring 18 are connected with adjacent two moving blocks 16 respectively, and movable wheel 19 is rotatably installed on the side of moving block 16.

[0032] Movable frame 20 is movably arranged on base 1, and motor 21 is detachably arranged on movable frame 20, and one end of rotating frame 50 is connected with the output end of motor 21.

[0033] Hydraulic cylinder 22 is detachably arranged on base 1, hydraulic rod 23 is connected to the output end of hydraulic cylinder 22, and the other end of hydraulic rod 23 is detachably connected with movable frame 20.

[0034] Support frame 24 is detachably arranged on base 1, and limiting frame 25 is detachably arranged on the other side of base 1.

[0035] In this embodiment, when the device needs to be used, first place the cylindrical metal casting on the support frame 24, and install the corresponding limiting device on one side of the limiting frame 25 to limit the cylindrical metal casting, so that the cylindrical metal casting can only rotate with the rotating shaft 12 provided on the limiting frame 25, then open the hydraulic cylinder 22, the hydraulic cylinder 22 pushes the moving frame 20 to slide forward along the base 1 through the output end connected hydraulic rod 23, then when the polishing block 5 moves to one end of the cylindrical metal casting, the connecting rod 2 is gathered inward by manpower or other external auxiliary equipment, so that the connecting rod 2 drives the polishing block 5 to move inward through the installation bin 3, and the connecting rod 2 drives the adaptive spring 6 to stretch through the connecting rope 4, when the installation bin 3 and the polishing block 5 enter the inside of the cylindrical metal casting, the limiting of the connecting rod 2 is released, then the adaptive spring 6 pulls the connecting rod 2 to diffuse outward through the connecting rope 4, then the outer side of the polishing block 5 contacts with the inner wall of the cylindrical metal casting, then the hydraulic cylinder 22 is closed for a short time and the motor 21 is opened, so that the motor 21 drives the rotating frame 50 to rotate, then the rotating frame 50 drives the connecting rod 2 and the installation bin 3 to rotate forward, then the installation bin 3 drives the polishing block 5 to rotate forward, at the same time, the rotating shaft 12 on the limiting frame 25 can be limited by external equipment, so that the rotating shaft 12 drives the cylindrical metal casting not to rotate, or the rotating shaft 12 and the cylindrical metal casting are driven to rotate in reverse by another drive motor of external equipment, so that the polishing block 5 sands the inner wall of the cylindrical metal casting, then the hydraulic cylinder 22 can be opened again to drive the hydraulic rod 23 to push the moving frame 20 to move, realizing the all-round sanding of the inner wall of the cylindrical metal casting.

[0036] Please refer to Figures 3-5 As a further embodiment of the whole device: a plurality of guide blocks 26 are fixed on one side of the control sleeve 10, and a guide groove 27 is formed on one side of the moving block 16, which is matched with the guide block 26.

[0037] The quick clamping block 11 is connected on one side with a control spring 28, and the other end of the control spring 28 is in contact with the inner wall of the control groove 14.

[0038] The limiting block 17 is designed in a cylindrical structure.

[0039] The quick clamping groove 9 is annularly formed on the outer side of the quick clamping rod 8.

[0040] More specifically, when the grinding block 5 needs to be replaced, first rotate the locking sleeve 15 forward, so that the locking sleeve 15 moves along the threads on the outer wall of the quick clamping sleeve 7, then the locking sleeve 15 no longer limits the outer side of the movable wheel 19, then rotate the control sleeve 10 forward, the control sleeve 10 drives the moving block 16 to rotate forward through the guide block 26 and the guide groove 27, then the moving block 16 drives the movable wheel 19 to move out from between the two limiting blocks 17, then the movable wheel 19 drives the moving block 16 to slide outward along the guide block 26 and the guide groove 27, and the moving block 16 drives the connecting spring 18 to stretch outward, at the same time the control sleeve 10 drives the control groove 14 inside to rotate forward, and the control groove 14 drives the quick clamping block 11 to move through the rotating shaft 12, then the position slot 13 on the inner wall extrudes one side of the quick clamping block 11, so that the quick clamping block 11 rotates along the rotating shaft 12 and gradually enters the control groove 14, at the same time the quick clamping block 11 extrudes the control spring 28 connected on one side, when the quick clamping block 11 completely separates from the quick clamping groove 9, pull the quick clamping rod 8 and the quick clamping sleeve 7 to both sides respectively, so as to realize the disassembly of the quick clamping sleeve 7 and the quick clamping rod 8, then refer to the above steps to disassemble another set of quick clamping sleeve 7 and quick clamping rod 8, then take out the grinding block 5 from the installation bin 3 for replacement, then install the new grinding block 5 into the installation bin 3, then pass the quick clamping rod 8 through the reserved hole on the installation bin 3 and the grinding block 5 from one side, then sleeve the quick clamping sleeve 7 to the outside of the quick clamping rod 8 from the other side, then rotate the control sleeve 10 in reverse, the control sleeve 10 drives the control groove 14 inside to rotate in reverse, and the control sleeve 10 drives the quick clamping block 11 to move in reverse through the rotating shaft 12, then one side of the position slot 13 gradually no longer limits one side of the quick clamping block 11, then the control spring 28 drives the quick clamping block 11 to rotate along the rotating shaft 12 to reset, then the quick clamping block 11 reenters the quick clamping groove 9, at the same time the control sleeve 10 drives the moving block 16 to rotate in reverse through the guide block 26 and the guide groove 27, and the moving block 16 drives the movable wheel 19 installed on one side to rotate in reverse, when the quick clamping block 11 reenters the quick clamping groove 9, the moving block 16 drives the movable wheel 19 to rotate to between the original two limiting blocks 17, then the connecting spring 18 resets to pull the moving block 16 to slide inward along the guide block 26 and the guide groove 27, then the moving block 16 drives the movable wheel 19 to enter between the original two limiting blocks 17, then rotate the locking sleeve 15 in reverse, so that the locking sleeve 15 resets along the threads, then the inner wall of the locking sleeve 15 limits the outer side of the movable wheel 19, so that the movable wheel 19 and the moving block 16 cannot slide outward, thereby realizing the locking of the control sleeve 10, preventing the control sleeve 10 from rotating, and thereby ensuring the stable installation of the grinding block 5.

[0041] In summary, the overall device is in use or operation: when the device needs to be used, first place the cylindrical metal casting on the support frame 24, and install the corresponding limiting device on one side of the limiting frame 25 to limit the cylindrical metal casting, so that the cylindrical metal casting can only rotate with the rotating shaft 12 provided on the limiting frame 25, then open the hydraulic cylinder 22, the hydraulic cylinder 22 pushes the moving frame 20 to slide forward along the base 1 through the output end connected hydraulic rod 23, then when the polishing block 5 moves to one end of the cylindrical metal casting, the connecting rod 2 is gathered inward by manpower or other external auxiliary equipment, so that the connecting rod 2 drives the polishing block 5 to move inward through the installation bin 3, and the connecting rod 2 drives the adaptive spring 6 to stretch through the connecting rope 4, when the installation bin 3 and the polishing block 5 enter the inside of the cylindrical metal casting, the connecting rod 2 is released, then the adaptive spring 6 pulls the connecting rod 2 outward through the connecting rope 4, then the outer side of the polishing block 5 contacts with the inner wall of the cylindrical metal casting, then the hydraulic cylinder 22 is closed for a short time and the motor 21 is opened, so that the motor 21 drives the rotating frame 50 to rotate, then the rotating frame 50 drives the connecting rod 2 and the installation bin 3 to rotate forward, then the installation bin 3 drives the polishing block 5 to rotate forward, at the same time, the rotating shaft 12 on the limiting frame 25 can be limited by external equipment, so that the rotating shaft 12 drives the cylindrical metal casting not to rotate, or the rotating shaft 12 and the cylindrical metal casting are driven to rotate in reverse by another drive motor of external equipment, so that the polishing block 5 sands the inner wall of the cylindrical metal casting, then the hydraulic cylinder 22 can be opened again to drive the hydraulic rod 23 to push the moving frame 20 to move, realizing the all-round sanding of the inner wall of the cylindrical metal casting.

[0042] When it is necessary to replace the polishing block 5, first rotate the locking sleeve 15 forward, so that the locking sleeve 15 moves along the threads on the outer wall of the quick clamping sleeve 7, then the locking sleeve 15 no longer limits the outer side of the movable wheel 19, then rotate the control sleeve 10 forward, the control sleeve 10 drives the moving block 16 to rotate forward through the guide block 26 and the guide groove 27, then the moving block 16 drives the movable wheel 19 to move out from between the two limiting blocks 17, then the movable wheel 19 drives the moving block 16 to slide outward along the guide block 26 and the guide groove 27, and the moving block 16 drives the connecting spring 18 to stretch outward, at the same time the control sleeve 10 drives the control groove 14 inside to rotate forward, and the control groove 14 drives the quick clamping block 11 to move through the rotating shaft 12, then the clearance slot 13 on the inner wall extrudes one side of the quick clamping block 11, so that the quick clamping block 11 rotates along the rotating shaft 12 and gradually enters the control groove 14, at the same time the quick clamping block 11 extrudes the control spring 28 connected on one side, when the quick clamping block 11 completely separates from the quick clamping groove 9, pull the quick clamping rod 8 and the quick clamping sleeve 7 to both sides respectively, so that the quick clamping sleeve 7 and the quick clamping rod 8 can be removed, then remove another set of quick clamping sleeve 7 and quick clamping rod 8 according to the above steps, then take out the polishing block 5 from the installation bin 3 for replacement, then install the new polishing block 5 into the installation bin 3, then pass the quick clamping rod 8 through the reserved hole on the installation bin 3 and the polishing block 5 from one side, then sleeve the quick clamping sleeve 7 to the outside of the quick clamping rod 8 from the other side, then rotate the control sleeve 10 reversely, the control sleeve 10 drives the control groove 14 inside to rotate reversely, and the control sleeve 10 drives the quick clamping block 11 to move reversely through the rotating shaft 12, then the clearance slot 13 on one side no longer limits one side of the quick clamping block 11, then the control spring 28 drives the quick clamping block 11 to rotate along the rotating shaft 12 to reset, then the quick clamping block 11 reenters the quick clamping groove 9, at the same time the control sleeve 10 drives the moving block 16 to rotate reversely through the guide block 26 and the guide groove 27, and the moving block 16 drives the movable wheel 19 installed on one side to rotate reversely, when the quick clamping block 11 reenters the quick clamping groove 9, the moving block 16 drives the movable wheel 19 to rotate to between the two limiting blocks 17 originally, then the connecting spring 18 resets to pull the moving block 16 to slide inward along the guide block 26 and the guide groove 27, then the moving block 16 drives the movable wheel 19 to enter between the two limiting blocks 17 originally, then rotate the locking sleeve 15 reversely, so that the locking sleeve 15 resets along the threads, then the inner wall of the locking sleeve 15 limits the outer side of the movable wheel 19, so that the movable wheel 19 and the moving block 16 cannot slide outward, thereby achieving the locking of the control sleeve 10, preventing the control sleeve 10 from rotating, and further ensuring the stable installation of the polishing block 5.

[0043] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning sand from the surface of metal castings, comprising a base (1), characterized in that: A sand-cleaning device is provided on one side of the base (1). The sand-cleaning device includes a connecting rod (2), an installation chamber (3), a connecting rope (4), a rotating frame (50), a grinding block (5), and an adapter spring (6). The two ends of the connecting rod (2) are rotatably connected to the installation chamber (3) and the rotating frame (50). One end of the adapter spring (6) is connected to the connecting rod (2) through the connecting rope (4), and the other end is connected to the rotating frame (50) through the connecting rope (4). A quick-clamping device is provided on the installation chamber (3). The quick-clamping device includes a quick-clamping sleeve (7), a quick-clamping rod (8), a quick-clamping groove (9), a control sleeve (10), a quick-clamping block (11), a rotating shaft (12), a clearance groove (13), and a control groove (14). (9) is opened on the outside of the quick-clamping rod (8). The quick-clamping block (11) is installed in the control groove (14) through the rotating shaft (12). The clearance groove (13) is opened on the side wall of the quick-clamping sleeve (7). The control groove (14) is opened on the inside of the control sleeve (10). A locking mechanism is installed on the outside of the quick-clamping sleeve (7). The locking mechanism includes a locking sleeve (15), a moving block (16), a limiting block (17), a connecting spring (18), and a movable wheel (19). The locking sleeve (15) is installed on the outside of the quick-clamping sleeve (7) through threads. The limiting block (17) is installed on the outside of the quick-clamping sleeve (7). The connecting spring (18) is connected to two adjacent moving blocks (16). The movable wheel (19) is installed on one side of the moving block (16).

2. The surface sand-removing device for metal castings according to claim 1, characterized in that: A movable frame (20) is movably mounted on the base (1), and a motor (21) is detachably mounted on the movable frame (20). The output end of the motor (21) is connected to one end of the rotating frame (50).

3. The surface sand-removing device for metal castings according to claim 2, characterized in that: A hydraulic cylinder (22) is detachably mounted on the base (1). A hydraulic rod (23) is connected to the output end of the hydraulic cylinder (22). The other end of the hydraulic rod (23) is detachably connected to the movable frame (20).

4. The surface sand-removing device for metal castings according to claim 3, characterized in that: The base (1) is detachably provided with a support frame (24), and the other side of the base (1) is detachably provided with a limiting frame (25).

5. A surface sand-removing device for metal castings according to any one of claims 1-4, characterized in that: The control sleeve (10) has a plurality of guide blocks (26) fixedly provided on one side, and the moving block (16) has a guide groove (27) on one side, which is adapted to the guide block (26).

6. The surface sand-removing device for metal castings according to claim 1, characterized in that: The quick-release block (11) is connected to a control spring (28) on one side, and the other end of the control spring (28) is in contact with the inner wall of the control groove (14).

7. The surface sand-removing device for metal castings according to claim 5, characterized in that: The limiting block (17) is designed as a column.

8. The surface sand-removing device for metal castings according to claim 6, characterized in that: The quick-release slot (9) is a ring structure located on the outside of the quick-release rod (8).

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