Gray iron casting lathe bed grinder

Abstract

The utility model discloses a grinder for a gray iron casting lathe bed. The grinder comprises a workbench and a distance adjusting mechanism. A working bin is arranged at the lower end of the working table, sliding openings which are uniformly distributed are formed in the working table, sliding rods are fixedly connected to the interiors of the sliding openings, sliding seats are slidably connected to the middles of the sliding rods, screw rods are fixedly connected to the upper ends of the sliding seats, clamping cylinders are in threaded connection to the upper ends of the screw rods, and an adjustable grinding wheel is arranged at the upper end of the working table; the interval adjusting mechanism is arranged in the working bin, the lower ends of the sliding seats are fixedly connected with the lower end of the interval adjusting mechanism, and a control switch set is arranged at the left end of the upper surface of the workbench. And meanwhile, multi-dimensional position and angle adjustment of the grinding wheel can be achieved, and the grinding precision of the gray iron casting lathe bed of the gray iron casting lathe bed grinder is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gray iron casting bed machining, in particular to a grinding device for gray iron casting beds. Background Technique

[0002] The gray iron casting bed, also known as the machine tool bed or machine tool casting, is a key component in the machine tool structure responsible for supporting workpieces and tools. It bears all the loads and motion loads of the machine tool and has an important impact on the overall performance and service life of the machine tool. The grinding device for gray iron casting beds is a tool or equipment used for grinding the machine tool bed made of gray iron casting, mainly for surface grinding of the machine tool bed made of gray iron casting to remove burrs, unevenness and other defects generated during the casting process, and improve the surface quality and accuracy of the bed.

[0003] Some existing grinding devices for gray iron casting beds use a method of fixing the specifications of the clamping unit to perform the clamping and fixing work on gray iron casting beds of specific specifications. Some grinding devices for gray iron casting beds use a method of fixing the angle of the grinding wheel to perform the grinding of gray iron casting beds.

[0004] There are some problems with traditional such grinding devices for gray iron casting beds. For example, using the method of fixing the specifications of the clamping unit may affect the applicable range of grinding gray iron casting beds by the grinding device for gray iron casting beds. Using the method of the angle of the grinding wheel may affect the grinding accuracy of gray iron casting beds by the grinding device for gray iron casting beds. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a grinding device for gray iron casting beds, which can effectively meet the clamping requirements of gray iron casting beds with different diameters, and at the same time can realize multi-dimensional position and angle adjustment of the grinding wheel, effectively improving the grinding accuracy of gray iron casting beds by the grinding device for gray iron casting beds, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A grinding device for gray iron casting beds, including a workbench and a spacing adjustment mechanism;

[0007] Workbench: A work bin is arranged at its lower end. Uniformly distributed sliding openings are arranged inside the workbench. Slide bars are fixedly connected inside the sliding openings. Sliding seats are slidably connected to the middle of the slide bars. Clamping cylinders are fixedly connected to the upper ends of the sliding seats. Threaded connections are made between the upper ends of the screw rods and the clamping cylinders. An adjustable grinding wheel is arranged at the upper end of the workbench.

[0008] Spacing adjustment mechanism: It is arranged inside the working bin, and the lower ends of the sliding seats are fixedly connected to the lower end of the spacing adjustment mechanism, which can effectively meet the clamping requirements of gray iron casting beds with different diameters. At the same time, it can realize multi-dimensional position and angle adjustment of the grinding wheel, effectively improving the grinding accuracy of the gray iron casting bed by the gray iron casting bed grinder.

[0009] Furthermore, a control switch group is arranged at the left end of the upper surface of the workbench. The input end of the control switch group is electrically connected to an external power supply to control the operation of each electrical appliance.

[0010] Furthermore, the spacing adjustment mechanism includes an adjustment shaft, a connecting rod, an adjustment disc and a driving shaft. The adjustment shafts are respectively fixedly connected to the lower ends of the sliding seats. The driving shaft is rotatably connected inside the working bin. The upper end of the driving shaft is fixedly connected with an adjustment disc. The lower end of the adjustment disc is fixedly connected with evenly distributed connecting shafts. A connecting rod is rotatably connected between the connecting shaft and the adjacent adjustment shaft in the horizontal direction to realize the spacing adjustment of the sliding seat.

[0011] Furthermore, the spacing adjustment mechanism further includes a motor 1 and a driven helical gear. The motor 1 is arranged at the rear end of the bottom wall of the working bin. The front end of the output shaft of the motor 1 is fixedly connected with a driving helical gear. The driven helical gear is fixedly connected to the lower end of the driving shaft. The driving helical gear is meshed with the driven helical gear. The input end of the motor 1 is electrically connected to the output end of the control switch group to provide driving force for the spacing adjustment of the sliding seat.

[0012] Furthermore, a chute is arranged at the rear end of the workbench. A longitudinal adjustment rail is slidably connected inside the chute. A vertical adjustment rail is slidably connected inside the longitudinal adjustment rail. A sliding block is slidably connected inside the vertical adjustment rail. A rotating shaft is rotatably connected to the front end of the sliding block. A rotating seat is fixedly connected to the middle of the rotating shaft. An activity frame is fixedly connected to the front end of the rotating seat. A rotating shaft is rotatably connected to the front end of the activity frame. A grinding wheel is fixedly connected to the front end of the rotating shaft to realize multi-dimensional position and angle adjustment of the grinding wheel.

[0013] Furthermore, a screw rod 2 is rotatably connected inside the longitudinal adjustment rail. The middle of the screw rod 2 is threadedly connected to the lower end of the vertical adjustment rail. A lead screw is rotatably connected inside the longitudinal adjustment rail. The middle of the lead screw is threadedly connected to the rear end of the sliding block. A screw rod 1 is rotatably connected inside the chute. The middle of the screw rod 1 is threadedly connected to the lower end of the longitudinal adjustment rail to provide driving force for multi-dimensional position and angle adjustment of the grinding wheel.

[0014] Further, a sixth motor is provided at the rear end of the right surface of the workbench. The left end of the output shaft of the sixth motor is fixedly connected to the right end of the first screw rod. A second motor is provided at the rear end of the longitudinal adjustment rail. The front end of the output shaft of the second motor is fixedly connected to the rear end of the second screw rod. A fourth motor is provided at the upper end of the vertical adjustment rail. The lower end of the output shaft of the fourth motor is fixedly connected to the upper end of the lead screw. A third motor is provided at the front end of the right surface of the sliding block. The left end of the output shaft of the third motor is fixedly connected to the right end of the rotating shaft. A fifth motor is provided inside the movable frame. The front end of the output shaft of the fifth motor is fixedly connected to the rear end of the rotating shaft. The input ends of the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor are all electrically connected to the output end of the control switch group, providing driving force for the rotation of the first screw rod, the second screw rod, the lead screw, the rotating shaft and the rotating shaft.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This gray iron casting bed body grinding device has the following advantages:

[0016] 1. First, according to the height of the gray iron casting bed body, the clamping cylinders are rotated in sequence. The clamping cylinders are all lifted under the action of the vertically adjacent screw rods. When the clamping cylinders reach the required positions, stop rotating the clamping cylinders. Then, the first motor is operated through the control switch group. The output shaft of the first motor rotates to drive the driving bevel gear to rotate. The driving bevel gear rotates to drive the driven bevel gear to rotate. The driven bevel gear rotates to drive the driving shaft to rotate. The driving shaft rotates to drive the adjusting disc to rotate. The adjusting disc rotates to drive the ends of the connecting rods close to the driving shaft to rotate around the central axis of the driving shaft through the connecting shafts. Furthermore, the ends of the connecting rods far from the driving shaft pull the sliding seats through the corresponding adjusting shafts, so that the sliding seats all move in the corresponding sliding openings in the direction close to the center of the workbench under the guiding action of the sliding rods. The sliding seats move towards each other and drive the clamping cylinders to move through the vertically adjacent screw rods, thereby realizing the stable clamping of gray iron casting bed bodies with different diameters, effectively meeting the clamping requirements of gray iron casting bed bodies with different diameters, and effectively improving the grinding accuracy of the gray iron casting bed body of the gray iron casting bed body grinding device.

[0017] 2. The operator turns off Motor 1 through the control switch group and makes Motor 2 operate. The rotation of the output shaft of Motor 2 drives the rotation of Screw 2, thereby causing the vertical adjustment rail to slide forward inside the longitudinal adjustment rail. The forward movement of the vertical adjustment rail drives the rotation seat to move forward through the sliding block, and then drives the movable frame to move forward, and finally realizes the forward movement of the grinding wheel. When the grinding wheel moves to the required longitudinal position, the operator turns off Motor 2 through the control switch group and makes Motor 3 operate. The rotation of the output shaft of Motor 3 drives the rotation of the rotating shaft, and then drives the rotation of the rotation seat. The rotation of the rotation seat drives the grinding wheel to rotate through the movable frame. When the grinding wheel rotates to the required angle, the operator turns off Motor 3 through the control switch group and makes Motor 5 operate. The rotation of the output shaft of Motor 5 drives the rotation of the rotating shaft, and then drives the grinding wheel to rotate, thereby realizing the grinding work of the gray iron casting bed. At the same time, the operator makes Motor 4 operate through the control switch group. The rotation of the output shaft of Motor 4 drives the rotation of the lead screw, thereby causing the sliding block to move vertically. The vertical movement of the sliding block drives the rotation seat to move vertically, and then drives the movable frame to move vertically, and finally realizes the vertical movement of the grinding wheel, realizing the continuous vertical grinding of the gray iron casting bed. The operator makes Motor 6 operate through the control switch group. The rotation of the output shaft of Motor 6 drives the rotation of Screw 1, thereby causing the longitudinal adjustment rail to move horizontally inside the chute. The horizontal movement of the longitudinal adjustment rail drives the vertical adjustment rail to move horizontally, and then drives the movable frame to move horizontally, and finally realizes the horizontal movement of the grinding wheel, realizing the continuous horizontal grinding of the gray iron casting bed. It can realize the multi-dimensional position and angle adjustment of the grinding wheel, effectively improving the grinding accuracy of the gray iron casting bed by the grinding device for the gray iron casting bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic cross-sectional structural diagram inside the present utility model;

[0020] Figure 3 is an enlarged structural diagram at A of the present utility model;

[0021] Figure 4 is an enlarged structural diagram at B of the present utility model.

[0022] In the figure: 1 workbench, 2 work bin, 3 spacing adjustment mechanism, 31 adjustment shaft, 32 connecting rod, 33 adjustment disk, 34 drive shaft, 35 Motor 1, 36 driven helical gear, 4 control switch group, 5 sliding seat, 6 screw, 7 clamping cylinder, 8 sliding rod, 9 Screw 1, 10 longitudinal adjustment rail, 11 vertical adjustment rail, 12 Motor 2, 13 sliding block, 14 Motor 3, 15 Motor 4, 16 rotation seat, 17 movable frame, 18 Motor 5, 19 grinding wheel, 20 Motor 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , this embodiment provides a technical solution: a gray iron casting bed grinding device, including a workbench 1 and a spacing adjustment mechanism 3;

[0025] Workbench 1: A work bin 2 is provided at its lower end. Uniformly distributed sliding openings are provided inside the workbench 1. Slide rods 8 are fixedly connected inside the sliding openings. Sliding seats 5 are slidably connected to the middle of the slide rods 8. Clamping cylinders 7 are fixedly connected to the upper ends of the sliding seats 5. Threaded connections are made between the upper ends of the screw rods 6 and the clamping cylinders 7. An adjustable grinding wheel 19 is provided at the upper end of the workbench 1. A control switch group 4 is provided at the left end of the upper surface of the workbench 1. The input end of the control switch group 4 is electrically connected to an external power source;

[0026] Spacing adjustment mechanism 3: It is arranged inside the working bin 2, and the lower ends of the sliding seats 5 are fixedly connected to the lower end of the spacing adjustment mechanism 3. The spacing adjustment mechanism 3 includes an adjustment shaft 31, a connecting rod 32, an adjustment disk 33 and a driving shaft 34. The adjustment shaft 31 is fixedly connected to the lower end of the sliding seat 5 respectively. The driving shaft 34 is rotatably connected inside the working bin 2. The upper end of the driving shaft 34 is fixedly connected with an adjustment disk 33. The lower end of the adjustment disk 33 is fixedly connected with evenly distributed connecting shafts. A connecting rod 32 is rotatably connected between the connecting shaft and the laterally adjacent adjustment shaft 31. The spacing adjustment mechanism 3 further includes a motor 35 and a driven bevel gear 36. The motor 35 is arranged at the rear end of the bottom wall of the working bin 2. The front end of the output shaft of the motor 35 is fixedly connected with a driving bevel gear. The driven bevel gear 36 is fixedly connected to the lower end of the driving shaft 34. The driving bevel gear is meshed and connected with the driven bevel gear 36. The input end of the motor 35 is electrically connected to the output end of the control switch group 4. First, according to the height of the gray iron casting bed body, the clamping cylinders 7 are rotated in sequence. The clamping cylinders 7 are all lifted under the action of the vertically adjacent screw rods 6. When the clamping cylinders 7 reach the required positions, stop rotating the clamping cylinders 7. Then, the motor 35 is operated through the control switch group 4. The output shaft of the motor 35 rotates to drive the driving bevel gear to rotate. The driving bevel gear rotates to drive the driven bevel gear 36 to rotate. The driven bevel gear 36 rotates to drive the driving shaft 34 to rotate. The driving shaft 34 rotates to drive the adjustment disk 33 to rotate. The adjustment disk 33 rotates to drive the connecting rods 32 near the driving shaft 34 to rotate around the central axis of the driving shaft 34 through the connecting shafts. Furthermore, the ends of the connecting rods 32 far from the driving shaft 34 pull the sliding seats 5 through the corresponding adjustment shafts 31 respectively, so that the sliding seats 5 all move in the corresponding sliding openings in the direction close to the center of the workbench 1 under the guiding action of the sliding rods 8. The sliding seats 5 move towards each other and drive the clamping cylinders 7 to move through the vertically adjacent screw rods 5 respectively, so as to realize the stable clamping of gray iron casting bed bodies with different diameters;

[0027] Among them: A chute is arranged at the rear end of the workbench 1. A longitudinal adjustment rail 10 is slidably connected inside the chute. A vertical adjustment rail 11 is slidably connected inside the longitudinal adjustment rail 10. A sliding block 13 is slidably connected inside the vertical adjustment rail 11. A rotating shaft is rotatably connected to the front end of the sliding block 13. A rotating seat 16 is fixedly connected to the middle of the rotating shaft. An active frame 17 is fixedly connected to the front end of the rotating seat 16. A rotating shaft is rotatably connected to the front end of the active frame 17. A grinding wheel 19 is fixedly connected to the front end of the rotating shaft. A second screw is rotatably connected inside the longitudinal adjustment rail 10. The middle of the second screw is threadedly connected to the lower end of the vertical adjustment rail 11. A lead screw is rotatably connected inside the longitudinal adjustment rail 10. The middle of the lead screw is threadedly connected to the rear end of the sliding block 13. A first screw 9 is rotatably connected inside the chute. The middle of the first screw 9 is threadedly connected to the lower end of the longitudinal adjustment rail 10. A sixth motor 20 is arranged at the rear end of the right surface of the workbench 1. The left end of the output shaft of the sixth motor 20 is fixedly connected to the right end of the first screw 9. A second motor 12 is arranged at the rear end of the longitudinal adjustment rail 10. The front end of the output shaft of the second motor 12 is fixedly connected to the rear end of the second screw. A fourth motor 15 is arranged at the upper end of the vertical adjustment rail 11. The lower end of the output shaft of the fourth motor 15 is fixedly connected to the upper end of the lead screw. A third motor 14 is arranged at the front end of the right surface of the sliding block 13. The left end of the output shaft of the third motor 14 is fixedly connected to the right end of the rotating shaft. A fifth motor 18 is arranged inside the active frame 17. The front end of the output shaft of the fifth motor 18 is fixedly connected to the rear end of the rotating shaft. The input ends of the second motor 12, the third motor 14, the fourth motor 15, the fifth motor 18 and the sixth motor 20 are all electrically connected to the output end of the control switch group 4. By closing the first motor 35 through the control switch group 4 and making the second motor 12 operate, the output shaft of the second motor 12 rotates to drive the second screw to rotate, thereby enabling the vertical adjustment rail 11 to slide forward inside the longitudinal adjustment rail 10. The forward movement of the vertical adjustment rail 11 drives the rotating seat 6 to move forward through the sliding block 13, and then drives the active frame 17 to move forward, finally realizing the forward movement of the grinding wheel 19. When the grinding wheel 19 moves to the required longitudinal position, the second motor 12 is closed through the control switch group 4 and the third motor 14 is made to operate. The output shaft of the third motor 14 rotates to drive the rotating shaft to rotate, and then drives the rotating seat 16 to rotate. The rotation of the rotating seat 16 drives the grinding wheel 19 to rotate through the active frame 17. When the grinding wheel 19 rotates to the required angle, the third motor 14 is closed through the control switch group 4 and the fifth motor 18 is made to operate. The output shaft of the fifth motor 18 rotates to drive the rotating shaft to rotate, and then drives the grinding wheel 19 to rotate, thereby realizing the grinding work of the gray iron casting bed body. At the same time, the fourth motor 15 is made to operate through the control switch group 4. The output shaft of the fourth motor 15 rotates to drive the lead screw to rotate, thereby enabling the sliding block 13 to move vertically. The vertical movement of the sliding block 13 drives the rotating seat 16 to move vertically, and then drives the active frame 17 to move vertically, finally realizing the vertical movement of the grinding wheel 19 and realizing the continuous vertical grinding of the gray iron casting bed body. The sixth motor 20 is made to operate through the control switch group 4. The output shaft of the sixth motor 20 rotates to drive the first screw 9 to rotate,Furthermore, the longitudinal adjustment rail 10 moves horizontally inside the chute. The horizontal movement of the longitudinal adjustment rail 10 drives the vertical adjustment rail 11 to move horizontally, thereby driving the movable frame 17 to move horizontally, and finally realizing the horizontal movement of the grinding wheel 19, so as to continuously grind the gray iron casting bed body horizontally.

[0028] The working principle of a gray iron casting bed grinding device provided by the present utility model is as follows: During operation, the operator first stably places the workbench 1, the work bin 2, and other mechanisms in a horizontal working area. After placing them stably, the operator places the gray iron casting bed on the upper end of the workbench 1. Then, according to the height of the gray iron casting bed, the operator rotates the clamping cylinders 7 in sequence. The clamping cylinders 7 all move upward under the action of the vertically adjacent screws 6. When the clamping cylinders 7 reach the required positions, the rotation of the clamping cylinders 7 is stopped. Then, the operation of the first motor 35 is realized through the control switch group 4. The output shaft of the first motor 35 rotates to drive the driving bevel gear to rotate. The driving bevel gear rotates to drive the driven bevel gear 36 to rotate. The driven bevel gear 36 rotates to drive the driving shaft 34 to rotate. The driving shaft 34 rotates to drive the adjusting disk 33 to rotate. The rotation of the adjusting disk 33 drives the ends of the connecting rods 32 close to the driving shaft 34 to rotate around the central axis of the driving shaft 34 through the connecting shaft. As a result, the ends of the connecting rods 32 far from the driving shaft 34 all pull the sliding seats 5 through the corresponding adjusting shafts 31, so that the sliding seats 5 all move in the corresponding sliding openings in the direction close to the center of the workbench 1 under the guiding action of the slide rods 8. The opposite movement of the sliding seats 5 all drives the clamping cylinders 7 to move through the vertically adjacent screws 5, thereby realizing the stable clamping of gray iron casting beds with different diameters. After the clamping is stable, the operator turns off the first motor 35 through the control switch group 4 and realizes the operation of the second motor 12. The output shaft of the second motor 12 rotates to drive the second screw to rotate, so that the vertical adjusting rail 11 slides forward inside the longitudinal adjusting rail 10. The forward movement of the vertical adjusting rail 11 drives the rotating seat 6 to move forward through the sliding block 13, and then drives the movable frame 17 to move forward, and finally realizes the forward movement of the grinding wheel 19. When the grinding wheel 19 moves to the required longitudinal position, the operator turns off the second motor 12 through the control switch group 4 and realizes the operation of the third motor 14. The output shaft of the third motor 14 rotates to drive the rotating shaft to rotate, and then drives the rotating seat 16 to rotate. The rotation of the rotating seat 16 drives the grinding wheel 19 to rotate through the movable frame 17. When the grinding wheel 19 rotates to the required angle, the operator turns off the third motor 14 through the control switch group 4 and realizes the operation of the fifth motor 18. The output shaft of the fifth motor 18 rotates to drive the rotating shaft to rotate, and then drives the grinding wheel 19 to rotate, thereby realizing the grinding work of the gray iron casting bed. At the same time, the operator realizes the operation of the fourth motor 15 through the control switch group 4. The output shaft of the fourth motor 15 rotates to drive the screw rod to rotate, so that the sliding block 13 moves vertically. The vertical movement of the sliding block 13 drives the rotating seat 16 to move vertically, and then drives the movable frame 17 to move vertically, and finally realizes the vertical movement of the grinding wheel 19, realizing the continuous vertical grinding of the gray iron casting bed. The operator realizes the operation of the sixth motor 20 through the control switch group 4. The output shaft of the sixth motor 20 rotates to drive the first screw 9 to rotate, so that the longitudinal adjusting rail 10 moves horizontally inside the chute. The horizontal movement of the longitudinal adjusting rail 10 drives the vertical adjusting rail 11 to move horizontally, and then drives the movable frame 17 to move horizontally, and finally realizes the horizontal movement of the grinding wheel 19, realizing the continuous horizontal grinding of the gray iron casting bed.It effectively meets the different grinding requirements of the gray iron casting bed, and greatly improves the grinding accuracy of the gray iron casting bed.

[0029] It should be noted that, in the above embodiments, the motor 1 - 35 can be selected as a 5I K120A - AF motor, the motor 2 - 12, the motor 4 - 15 and the motor 6 - 20 can all be selected as 5I K90A - AF motors, the motor 3 - 14 can be selected as a 42BYG40 short - shaft stepping motor, the motor 5 - 18 can be selected as a LI KO MOTOR57 two - phase stepping motor, and the control switch group 4 is provided with control buttons corresponding to and controlling the switches of the motor 1 - 35, the motor 2 - 12, the motor 3 - 14, the motor 4 - 15, the motor 5 - 18 and the motor 6 - 20 one by one.

[0030] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A gray iron casting bed grinder, characterized in that: It comprises a workbench (1) and a spacing adjustment mechanism (3); The workbench (1) has a working chamber (2) at its lower end, and evenly distributed sliding openings are arranged inside the workbench (1). The sliding openings are fixedly connected to sliding rods (8), and the middle of the sliding rods (8) are slidably connected to sliding seats (5). The upper ends of the sliding seats (5) are fixedly connected to screw rods (6), and the upper ends of the screw rods (6) are threadedly connected to clamping cylinders (7). The upper end of the workbench (1) is provided with an adjustable grinding wheel (19); The spacing adjustment mechanism (3) is arranged inside the working chamber (2), and the lower end of the sliding seat (5) is fixedly connected to the lower end of the spacing adjustment mechanism (3).

2. A gray iron casting bed grinder according to claim 1, characterized in that: A control switch group (4) is provided at the left end of the upper surface of the workbench (1), and an input end of the control switch group (4) is electrically connected to an external power supply.

3. A gray iron casting bed grinder according to claim 2, characterized in that: The spacing adjustment mechanism (3) comprises an adjustment shaft (31), a connecting rod (32), an adjustment disk (33) and a driving shaft (34); the adjustment shaft (31) is fixedly connected to the lower end of the sliding seat (5), the driving shaft (34) is rotatably connected to the inside of the working chamber (2), the upper end of the driving shaft (34) is fixedly connected to the adjustment disk (33), the lower end of the adjustment disk (33) is fixedly connected to evenly distributed connecting shafts, and the connecting shafts and the laterally adjacent adjustment shafts (31) are rotatably connected to the connecting rods (32).

4. A gray iron casting bed grinder according to claim 3, characterized in that: The spacing adjustment mechanism (3) further comprises a motor 1 (35) and a driven bevel gear (36); the motor 1 (35) is arranged at the rear end of the bottom wall of the working chamber (2); the front end of the output shaft of the motor 1 (35) is fixedly connected to the driving bevel gear; the driven bevel gear (36) is fixedly connected to the lower end of the driving shaft (34); the driving bevel gear is meshed with the driven bevel gear (36); and the input end of the motor 1 (35) is electrically connected to the output end of the control switch group (4).

5. A gray iron casting bed grinder according to claim 2, characterized in that: The rear end of the workbench (1) is provided with a slide groove, the interior of the slide groove is slidably connected to a longitudinal adjustment rail (10), the interior of the longitudinal adjustment rail (10) is slidably connected to a vertical adjustment rail (11), the interior of the vertical adjustment rail (11) is slidably connected to a sliding block (13), the front end of the sliding block (13) is rotatably connected to a rotating shaft, the middle of the rotating shaft is fixedly connected to a rotating seat (16), the front end of the rotating seat (16) is fixedly connected to a movable frame (17), the front end of the movable frame (17) is rotatably connected to a rotating shaft, and the front end of the rotating shaft is fixedly connected to a grinding wheel (19).

6. A gray iron casting bed grinder according to claim 5, characterized in that: The longitudinal adjustment rail (10) is internally rotatably connected with a screw rod 2, the middle portion of which is threadedly connected to the lower end of the vertical adjustment rail (11), the longitudinal adjustment rail (10) is internally rotatably connected with a screw rod, the middle portion of which is threadedly connected to the rear end of the sliding block (13), the slide groove is internally rotatably connected with a screw rod 1 (9), the middle portion of which is threadedly connected to the lower end of the longitudinal adjustment rail (10).

7. A gray iron casting bed grinder according to claim 6, characterized in that: A motor 6 (20) is arranged at the rear end of the right side surface of the workbench (1), the left end of the output shaft of the motor 6 (20) is fixedly connected to the right end of the screw rod 1 (9), a motor 2 (12) is arranged at the rear end of the longitudinal adjustment rail (10), the front end of the output shaft of the motor 2 (12) is fixedly connected to the rear end of the screw rod 2, a motor 4 (15) is arranged at the upper end of the vertical adjustment rail (11), the lower end of the output shaft of the motor 4 (15) is fixedly connected to the upper end of the screw rod, a motor 3 (14) is arranged at the front end of the right side surface of the sliding block (13), the left end of the output shaft of the motor 3 (14) is fixedly connected to the right end of the rotating shaft, a motor 5 (18) is arranged inside the movable frame (17), the front end of the output shaft of the motor 5 (18) is fixedly connected to the rear end of the rotating shaft, and the input ends of the motor 2 (12), the motor 3 (14), the motor 4 (15), the motor 5 (18) and the motor 6 (20) are all electrically connected to the output end of the control switch group (4).

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