Positioning and polishing structure for iron casting

Abstract

The utility model discloses a locating and polishing structure for iron castings, which comprises a workbench and rotating shafts, the top end of the workbench is provided with two groups of rotating shafts, the rotating shafts are movably connected with the workbench, the two ends of each rotating shaft are provided with linkage arms, the linkage arms are fixedly connected with the rotating shafts, one side of the workbench is provided with a hydraulic rod, and the hydraulic rod is connected with the workbench. A hydraulic rod is installed on one side of the workbench and movably connected with one linkage arm, a push arm is installed at the output end of the hydraulic rod and movably connected with the other linkage arm, a connecting rod is arranged on the other side of the workbench, a right movable shaft and a left movable shaft are installed at the two ends of the connecting rod respectively, and the connecting rod is movably connected with the third linkage arm through the right movable shaft. According to the polishing device for the outer wall of the iron casting, the iron casting can be conveniently positioned, clamped and fixed in a center external expansion mode, the polishing position can be moved and adjusted, the outer wall of the iron casting can be conveniently polished in a self-rotation mode, and the convenience and uniformity of polishing of the outer wall of the iron casting are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding structures, in particular to a positioning grinding structure for iron castings. Background Art

[0002] Iron castings are metal products obtained by melting iron (mainly cast iron) through a casting process, pouring it into a mold, and then cooling and solidifying it. Cast iron is a general term for alloys composed of iron, carbon and silicon. The carbon content in these alloys exceeds the amount that can be retained in the austenite solid solution at the eutectic temperature. The surface of iron castings is relatively rough after production. In order to better use iron castings, they need to be polished. Traditional polishing methods are mostly manual polishing, which is inefficient. In order to better polish iron castings, a positioning polishing structure for iron castings is proposed.

[0003] For example, a positioning and grinding structure for gray iron castings disclosed in the authorization announcement number CN221159754U includes a base plate, a slide groove is provided on the top of the base plate, a screw rod is rotatably installed inside the slide groove, a slider is threadedly sleeved on the surface of the screw rod, a mobile motor is fixedly installed on one side of the base plate, the output end of the mobile motor passes through the base plate and is fixedly connected to one side of the screw rod, and a vertical plate is fixedly installed on the top of the slider;

[0004] Although it is realized that during daily use, the operator starts the moving motor, the operation of the moving motor will cause the screw to rotate, and due to the limiting effect of the round rod and the movable block, the slider will slide inside the slide groove, and at the same time, the vertical plate, the vertical plate and the horizontal plate will slide, and the gray iron casting will be polished by using the horizontal plate and the polishing unit at the bottom thereof. This operation method is convenient for discharging the gray iron casting, thereby improving the polishing efficiency;

[0005] However, the problem that the existing grinding structure is not conducive to convenient center-outward expansion positioning, clamping and fixing of iron castings and moving and adjusting the grinding position during use is not solved, and is not conducive to self-rotation grinding of the outer wall of the iron casting, which affects the convenience and uniformity of grinding the outer wall of the iron casting. Utility Model Content

[0006] The purpose of the present utility model is to provide a positioning and grinding structure for iron castings, so as to solve the problem in the above-mentioned background technology that the grinding structure is not convenient for convenient center-outward expansion positioning, clamping and fixing of iron castings and moving and adjusting the grinding position, is not conducive to self-rotational grinding of the outer wall of the iron casting, and affects the convenience and uniformity of grinding the outer wall of the iron casting.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning and grinding structure for iron castings, comprising a workbench and a rotating shaft, wherein two groups of rotating shafts are installed at the top of the workbench, and the rotating shafts are movably connected to the workbench, and linkage arms are installed at both ends of the rotating shaft, and the linkage arms are fixedly connected to the rotating shaft. A hydraulic rod is provided on one side of the workbench, and the hydraulic rod is movably connected to one group of linkage arms, and a push arm is installed at the output end of the hydraulic rod, and the push arm is movably connected to another group of linkage arms. A connecting rod is provided on the other side of the workbench, and a right movable shaft and a left movable shaft are respectively installed at both ends of the connecting rod, and the connecting rod is movably connected to the third group of linkage arms through the right movable shaft, and the connecting rod is movably connected to the fourth group of linkage arms through the left movable shaft. Grinding blocks are installed on the side walls of the rotating shaft, and two groups of lifting cylinders are installed inside the workbench, and cylinder push rods are installed at the output ends of the lifting cylinders. A lifting plate is provided above the workbench, and the lifting plate is connected to the cylinder push rods, and a rotating seat is installed on the top of the lifting plate.

[0008] Preferably, a rotating motor is installed on the inner wall of the rotating seat, and a transmission bevel gear is installed on the output end of the rotating motor.

[0009] Preferably, a rotating shaft is movably installed inside the rotating seat on one side of the transmission bevel gear, a driven bevel gear is sleeved on the surface of the rotating shaft, and the transmission bevel gear and the driven bevel gear are meshed with each other.

[0010] Preferably, a clamping frame is installed at the top end of the rotating shaft, and three groups of clamping motors with equal spacing are installed at the bottom end of the clamping frame.

[0011] Preferably, the output ends of the clamping motors are all equipped with threaded rods, and the threaded rods are movably connected to the clamping frame. The surfaces of the threaded rods are all covered with threaded sleeves, and the threaded sleeves are threadedly connected to the threaded rods, and the threaded sleeves are slidably connected to the clamping frame.

[0012] Preferably, a short connecting arm is installed on the side wall of the threaded sleeve, a left hinge shaft is installed on one end of the short connecting arm close to the threaded sleeve, and the short connecting arm is movably connected to the threaded sleeve through the left hinge shaft.

[0013] Preferably, three groups of long connecting arms with equal spacing are installed on the top of the clamping frame, and the ends of the long connecting arms close to the clamping frame are all installed with pins, and the long connecting arms are movably connected to the clamping frame through the pins.

[0014] Preferably, the short connecting arm is installed with a right hinge shaft at one end close to the long connecting arm, and the short connecting arm is movably connected to the long connecting arm through the right hinge shaft, and the long connecting arm is installed with a clamping block at one end away from the pin shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the grinding structure not only realizes convenient center-outward expansion positioning, clamping and fixing of iron castings and movable adjustment of grinding positions, facilitates the self-rotation grinding of the outer wall of the iron casting, but also improves the convenience and uniformity of the grinding of the outer wall of the iron casting;

[0016] (1) The threaded rod is driven to rotate by the clamping motor, and the threaded rod drives the threaded sleeve to move. The threaded sleeve drives the short connecting arm to rotate through the left hinge shaft. The short connecting arm drives the long connecting arm to rotate with the pin shaft as the axis through the right hinge shaft. The long connecting arm drives the clamping block to rotate, so that multiple groups of clamping blocks can clamp and fix the circular iron casting from the inside. The hydraulic rod drives the push arm to move. The hydraulic rod and the push arm drive the two groups of linkage arms to rotate. The linkage arms drive the rotating shafts to rotate respectively. The two groups of rotating shafts drive the other two groups of linkage arms to rotate respectively. One group of linkage arms drives the connecting rod to rotate through the right movable shaft. The connecting rod drives the other two groups of linkage arms to rotate through the left movable shaft. A set of linkage arms rotates, and the connecting rod limits the two sets of rotating shafts. At the same time, the rotating shaft drives the two sets of grinding blocks to rotate in opposite directions, so that the two sets of grinding blocks contact the outer wall of the annular iron casting. The rotating motor drives the transmission bevel gear to rotate, and the transmission bevel gear drives the driven bevel gear to rotate. The driven bevel gear drives the rotating shaft to rotate, and the rotating shaft drives the clamping frame and the annular iron casting to rotate. The grinding blocks grind the outer wall of the annular iron casting, realizing convenient center-outward expansion positioning and clamping of the iron casting, facilitating self-rotation grinding of the outer wall of the iron casting, and improving the convenience of outer wall grinding.

[0017] (2) The lifting cylinder drives the cylinder push rod to move, and the cylinder push rod drives the lifting plate to move, and the lifting plate drives the rotating seat, the rotating shaft, the clamping frame and the annular iron casting to move up and down, so as to adjust the grinding position up and down, so as to facilitate grinding at different positions on the outer wall of the annular iron casting, so that the outer wall of the annular iron casting can be ground more evenly, realizes the movement and adjustment of the grinding position, and improves the uniformity of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting rod of the present invention;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of the workbench of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping frame of the present invention;

[0022] Figure 5 It is a schematic diagram of the front cross-sectional structure of the rotating seat of the present invention.

[0023] In the figure: 1. Workbench; 2. Linkage arm; 3. Hydraulic rod; 4. Push arm; 5. Grinding block; 6. Rotating shaft; 7. Rotating seat; 8. Right movable shaft; 9. Left movable shaft; 10. Connecting rod; 11. Lifting cylinder; 12. Cylinder push rod; 13. Lifting plate; 14. Rotating shaft; 15. Clamping frame; 16. Clamping motor; 17. Threaded rod; 18. Left articulated shaft; 19. Threaded sleeve; 20. Pin; 21. Long connecting arm; 22. Right articulated shaft; 23. Clamping block; 24. Short connecting arm; 25. Rotating motor; 26. Driving bevel gear; 27. Driven bevel gear. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The utility model provides an embodiment: a positioning and grinding structure for iron castings, including a workbench 1 and a rotating shaft 6. Two groups of rotating shafts 6 are installed on the top of the workbench 1, and the rotating shafts 6 are movably connected to the workbench 1. Both ends of the rotating shafts 6 are installed with linkage arms 2, and the linkage arms 2 are fixedly connected to the rotating shafts 6. A hydraulic rod 3 is provided on one side of the workbench 1. The hydraulic rod 3 plays a role of power drive, and the hydraulic rod 3 is movably connected to one group of linkage arms 2. A push arm 4 is installed on the output end of the hydraulic rod 3, and the push arm 4 is movably connected to another group of linkage arms 2. A connecting rod 10 is provided on the other side of the workbench 1. A right movable shaft 8 and a left movable shaft 9 are respectively installed at both ends of the connecting rod 10, and the connecting rod 10 is movably connected to the third group of linkage arms 2 through the right movable shaft 8, and the connecting rod 10 is movably connected to the fourth group of linkage arms 2 through the left movable shaft 9. Grinding blocks 5 are installed on the side walls of the rotating shaft 6. Two groups of lifting cylinders 11 are installed inside the workbench 1. The lifting cylinders 11 play a role of power drive. Cylinder push rods 12 are installed at the output ends of the lifting cylinders 11. A lifting plate 13 is provided above the workbench 1, and the lifting plate 13 is connected to the cylinder push rod 12. A rotating seat 7 is installed on the top of the lifting plate 13;

[0026] First, the device is connected to an external controller and an external circuit, and the annular iron casting to be polished is placed outside the multiple groups of clamping blocks 23. The clamping motor 16 is turned on, and the clamping motor 16 drives the threaded rod 17 to rotate. Under the threaded connection between the threaded rod 17 and the threaded sleeve 19, and the sliding cooperation between the threaded sleeve 19 and the clamping frame 15, the threaded rod 17 drives the threaded sleeve 19 to move, and the threaded sleeve 19 drives the short connecting arm 24 to rotate through the left hinge shaft 18, and the short connecting arm 24 is rotated by the short connecting arm 2 The right hinge shaft 22 drives the long connecting arm 21 to rotate around the pin shaft 20, and the long connecting arm 21 drives the clamping block 23 to rotate, so that the multiple groups of clamping blocks 23 clamp and fix the annular iron casting from the inside. Then, the hydraulic rod 3 is opened, and the hydraulic rod 3 drives the push arm 4 to move. Under the cooperation of the hydraulic rod 3, the push arm 4 and the linkage arm 2, the hydraulic rod 3 and the push arm 4 drive the two groups of linkage arms 2 to rotate, and the linkage arm 2 drives the rotating shaft 6 to rotate respectively, and the two groups of rotating shafts 6 are divided into two groups. The other two linkage arms 2 are driven to rotate by one linkage arm 2 through the right movable shaft 8, and the connecting rod 10 is driven to rotate by the connecting rod 10 through the left movable shaft 9. The connecting rod 10 limits the two sets of rotating shafts 6. At the same time, the rotating shaft 6 drives the two sets of grinding blocks 5 to rotate in opposite directions, so that the two sets of grinding blocks 5 contact the outer wall of the annular iron casting. Then, the rotating motor 25 is turned on, and the rotating motor 25 drives the transmission bevel gear 26 to rotate. Under the mutual meshing of the gear 26 and the driven bevel gear 27, the driving bevel gear 26 drives the driven bevel gear 27 to rotate, the driven bevel gear 27 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives the clamping frame 15 and the annular iron casting to rotate, and the grinding block 5 grinds the outer wall of the annular iron casting, realizing convenient center-outward expansion positioning and clamping of the iron casting, facilitating the self-rotation grinding of the outer wall of the iron casting, and improving the convenience of outer wall grinding;

[0027] A rotating motor 25 is mounted on the inner wall of the rotating seat 7. The rotating motor 25 plays a role of power driving. A transmission bevel gear 26 is mounted on the output end of the rotating motor 25.

[0028] A rotating shaft 14 is movably mounted inside the rotating seat 7 on one side of the transmission bevel gear 26. A driven bevel gear 27 is mounted on the surface of the rotating shaft 14. The transmission bevel gear 26 and the driven bevel gear 27 are meshed with each other.

[0029] A clamping frame 15 is mounted on the top of the rotating shaft 14, and three sets of clamping motors 16 are mounted at equal intervals on the bottom of the clamping frame 15. The clamping motors 16 serve as a power drive. Threaded rods 17 are mounted on the output ends of the clamping motors 16, and the threaded rods 17 are movably connected to the clamping frame 15. Threaded sleeves 19 are mounted on the surfaces of the threaded rods 17, and the threaded sleeves 19 are threadedly connected to the threaded rods 17, and the threaded sleeves 19 are slidably connected to the clamping frame 15.

[0030] A short connecting arm 24 is installed on the side wall of the threaded sleeve 19. A left hinge shaft 18 is installed on one end of the short connecting arm 24 close to the threaded sleeve 19, and the short connecting arm 24 is movably connected to the threaded sleeve 19 through the left hinge shaft 18.

[0031] The top of the clamping frame 15 is equipped with three groups of long connecting arms 21 at equal intervals. The long connecting arms 21 are each equipped with a pin 20 at one end close to the clamping frame 15, and the long connecting arms 21 are movably connected to the clamping frame 15 through the pin 20. The short connecting arms 24 are each equipped with a right hinge shaft 22 at one end close to the long connecting arm 21, and the short connecting arms 24 are movably connected to the long connecting arm 21 through the right hinge shaft 22. The long connecting arms 21 are each equipped with a clamping block 23 at one end away from the pin shaft 20.

[0032] When a part of the outer wall is polished, the lifting cylinder 11 is turned on, and the lifting cylinder 11 drives the cylinder push rod 12 to move, and the cylinder push rod 12 drives the lifting plate 13 to move, and the lifting plate 13 drives the rotating seat 7, the rotating shaft 14, the clamping frame 15 and the annular iron casting to move up and down to adjust the polishing position, so as to facilitate the polishing of different positions on the outer wall of the annular iron casting, so that the outer wall of the annular iron casting is polished more evenly, realizing the movement and adjustment of the polishing position and improving the uniformity of the polishing.

[0033] Working principle: First, the annular iron casting to be polished is placed on the outside of multiple groups of clamping blocks 23, and the clamping motor 16 drives the threaded rod 17 to rotate, and the threaded rod 17 drives the threaded sleeve 19 to move, and the threaded sleeve 19 drives the short connecting arm 24 to rotate through the left hinge shaft 18, and the short connecting arm 24 drives the long connecting arm 21 to rotate with the pin shaft 20 as the axis through the right hinge shaft 22, and the long connecting arm 21 drives the clamping block 23 to rotate, so that the multiple groups of clamping blocks 23 clamp and fix it from the inside of the annular iron casting, and the hydraulic rod 3 drives the push arm 4 to move, and the hydraulic rod 3 and the push arm 4 drive the two groups of linkage arms 2 to rotate, and the linkage arm 2 drives the rotating shaft 6 to rotate respectively, and the two groups of rotating shafts 6 respectively drive the other two groups of linkage arms 2 to rotate, and one group of linkage arms 2 drives the connecting rod 10 to rotate through the right movable shaft 8, and the connecting rod 10 drives the other group of linkage arms 2 to rotate through the left movable shaft 9, and the connecting rod 10 is used to adjust the two groups of rotating shafts 6 The outer wall of the annular iron casting is polished by the polishing block 5. When the polishing is completed, the cylinder push rod 12 is driven by the lifting cylinder 11 to move, and the lifting plate 13 is driven by the cylinder push rod 12 to move, and the lifting plate 13 drives the rotating seat 7, the rotating shaft 14, the clamping frame 15 and the annular iron casting to move up and down to adjust the polishing position, so as to facilitate polishing different positions on the outer wall of the annular iron casting, thereby completing the use of the positioning polishing structure for iron castings.

Claims

1. A positioning and grinding structure for iron castings, comprising a workbench (1) and a rotating shaft (6), characterized in that: Two groups of rotating shafts (6) are installed on the top of the workbench (1), and the rotating shafts (6) are movably connected to the workbench (1). Both ends of the rotating shafts (6) are installed with linkage arms (2), and the linkage arms (2) are fixedly connected to the rotating shafts (6). A hydraulic rod (3) is provided on one side of the workbench (1), and the hydraulic rod (3) is movably connected to one group of linkage arms (2). A push arm (4) is installed on the output end of the hydraulic rod (3), and the push arm (4) is movably connected to the other group of linkage arms (2). A connecting rod (10) is provided on the other side of the workbench (1), and both ends of the connecting rod (10) are respectively installed with a right movable shaft (8). and a left movable shaft (9), and the connecting rod (10) is movably connected to the third group of linkage arms (2) through the right movable shaft (8), and the connecting rod (10) is movably connected to the fourth group of linkage arms (2) through the left movable shaft (9), and the side walls of the rotating shaft (6) are all installed with grinding blocks (5), two groups of lifting cylinders (11) are installed inside the workbench (1), and the output ends of the lifting cylinders (11) are all installed with cylinder push rods (12), a lifting plate (13) is provided above the workbench (1), and the lifting plate (13) is connected to the cylinder push rod (12), and a rotating seat (7) is installed on the top of the lifting plate (13).

2. The positioning and grinding structure for iron castings according to claim 1, characterized in that: A rotating motor (25) is installed on the inner wall of the rotating seat (7), and a transmission bevel gear (26) is installed on the output end of the rotating motor (25).

3. The positioning and grinding structure for iron castings according to claim 2, characterized in that: A rotating shaft (14) is movably mounted inside the rotating seat (7) on one side of the transmission bevel gear (26), a driven bevel gear (27) is sleeved on the surface of the rotating shaft (14), and the transmission bevel gear (26) and the driven bevel gear (27) are meshed with each other.

4. The positioning and grinding structure for iron castings according to claim 3, characterized in that: A clamping frame (15) is installed at the top end of the rotating shaft (14), and three groups of clamping motors (16) with equal spacing are installed at the bottom end of the clamping frame (15).

5. The positioning and grinding structure for iron castings according to claim 4, characterized in that: The output ends of the clamping motors (16) are all equipped with threaded rods (17), and the threaded rods (17) are movably connected to the clamping frame (15). The surfaces of the threaded rods (17) are all covered with threaded sleeves (19), and the threaded sleeves (19) are threadedly connected to the threaded rods (17), and the threaded sleeves (19) are slidably connected to the clamping frame (15).

6. The positioning and grinding structure for iron castings according to claim 5, characterized in that: A short connecting arm (24) is installed on the side wall of the threaded sleeve (19), and a left hinge shaft (18) is installed on one end of the short connecting arm (24) close to the threaded sleeve (19), and the short connecting arm (24) is movably connected to the threaded sleeve (19) through the left hinge shaft (18).

7. The positioning and grinding structure for iron castings according to claim 4, characterized in that: The top of the clamping frame (15) is equipped with three groups of long connecting arms (21) at equal intervals. The ends of the long connecting arms (21) close to the clamping frame (15) are all equipped with pins (20), and the long connecting arms (21) are movably connected to the clamping frame (15) through the pins (20).

8. The positioning and grinding structure for iron castings according to claim 6, characterized in that: The short connecting arm (24) is installed with a right hinge shaft (22) at one end close to the long connecting arm (21), and the short connecting arm (24) is movably connected to the long connecting arm (21) through the right hinge shaft (22), and the long connecting arm (21) is installed with a clamping block (23) at one end away from the pin shaft (20).

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