CN118720242A - Large casting cutting processing device and processing method thereof - Google Patents

Abstract

The present invention discloses a large casting cutting and processing device and a processing method thereof, which relates to the technical field of casting cutting and processing, and includes a frame and two U-shaped clamping plates; a handling mechanism, wherein the handling and unloading mechanism includes two mounting grooves symmetrically arranged on the inner wall of the frame, two mounting plates are slidably connected to the inner walls of the two mounting grooves, and two first triangular plates are fixedly connected to the upper ends of the two mounting plates, one of the first triangular plates is rotatably connected to a first spline sleeve on the side wall, and the other of the first triangular plates is rotatably connected to a first rotating shaft on the side wall, and the other end of the first rotating shaft is fixedly connected to the first spline sleeve, and the side wall of the first rotating shaft is symmetrically fixedly connected to two cross plates, and the side walls of the two cross plates are both rotatably connected to a second rotating shaft. In the present invention, by driving a servo motor, the U-shaped clamping plate can be driven to rotate, and the fixed casting can be handled without the need to set up additional lifting equipment or manipulators, thereby greatly reducing production costs.

Description

Large casting cutting processing device and processing method thereof

Technical Field

The invention relates to the technical field of casting cutting and processing, and in particular to a large casting cutting and processing device and a processing method thereof.

Background Art

Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance.

When cutting existing large castings, they need to be moved to the cutting position in the frame first. However, large castings are heavy and cannot be moved manually. Usually, lifting equipment or manipulators are set up to move them. However, lifting equipment and manipulators are usually expensive, which will greatly increase the cost of production. Some small and medium-sized enterprises cannot use them at all.

Based on this, we propose a large casting cutting processing device and a processing method thereof.

Summary of the invention

The purpose of the present invention is to solve the shortcomings of the prior art and to propose a large casting cutting processing device and a processing method thereof.

In order to achieve the above object, the present invention adopts the following technical solutions:

A large casting cutting and processing device comprises a frame and two U-shaped clamping plates;

The cam is connected with two cams, and the two cams have two ends respectively connected to the first end of the cam and the second end of the cam, and the two cams have two ends respectively connected to the first end of the cam and the second end of the cam.

Preferably, a driving mechanism is installed on the mounting plate, and the driving mechanism includes a servo motor fixedly connected to the upper end of the mounting plate, the output end of the servo motor is fixedly connected to an electric push rod, the upper end of the mounting plate is fixedly connected to a second triangular plate, the side wall of the second triangular plate is rotatably connected to a second spline sleeve, the movable end of the electric push rod is fixedly connected to a first spline shaft, the first spline shaft is slidably connected to the first spline sleeve and the inner wall of the second spline sleeve, the side wall of the second spline sleeve is fixedly connected to a first driving wheel, one end of one of the second rotating shafts passes through the side wall of the cross plate and is fixedly connected to the first driven wheel, and the first driving wheel is connected to the first driven wheel through a synchronous belt.

Preferably, the first triangular plate side wall is fixedly connected with a first conductive block, the first rotating shaft side wall is fixedly connected with a second conductive block, and the servo motor, electric push rod, first conductive block, second conductive block, diode and power supply are electrically connected through wires.

Preferably, a lifting mechanism is installed on the frame, and the lifting mechanism includes a square plate fixedly connected to the inner wall of the frame, and the upper end of the square plate is rotatably connected to a third spline sleeve, one of the inner walls of the mounting groove is rotatably connected to the first screw, the side wall of the first screw is threadedly connected to the mounting plate, and the other inner wall of the mounting groove is fixedly connected to a guide rod, and the side wall of the guide rod is slidably connected to the mounting plate, the side wall of the first screw is fixedly connected to the second driving wheel, the side wall of the third spline sleeve is fixedly connected to the second driven wheel, the second driving wheel and the second driven wheel are connected by a synchronous belt, the lower end of the mounting plate is rotatably connected to the second spline shaft, the second spline shaft is slidably connected to the inner wall of the third spline sleeve, the side wall of the first rotating shaft is fixedly connected to the first bevel gear, the upper end of the second spline shaft passes through the upper end of the mounting plate and is fixedly connected to the second bevel gear, and the first bevel gear is meshed with the second bevel gear.

Preferably, an air pumping mechanism is installed on the frame, and the air pumping mechanism includes a pump air box fixedly connected to the inner wall of the frame, the inner wall of the pump air box is sealingly and slidably connected with a sliding plug, the side wall of the pump air box is slidably connected with a T-bar, one end of the T-bar is fixedly connected to the side wall of the sliding plug, the side wall of the T-bar is sleeved with a third spring, the two ends of the third spring are respectively fixedly connected to the side wall of the sliding plug and the inner wall of the pump air box, the lower end of the third spline sleeve passes through the lower end of the square plate and is fixedly connected with a cam, the side wall of the cam slides against the side wall of the T-bar, two one-way air inlet pipes are fixedly connected to the inner wall of the pump air box, and the pump air box is connected to the slide groove through a one-way air supply pipe.

Preferably, two air inlet cavities are symmetrically provided in the U-shaped clamping plate, a plurality of jet holes are provided on the inner wall of the air inlet cavity, the slide groove is connected with the air inlet cavity through a connecting pipe, and a pressure relief valve is installed on the inner wall of the connecting pipe.

Preferably, two first square grooves are symmetrically provided at the upper end of the frame, and the inner walls of the two first square grooves are slidably connected to a mounting frame together, a second square groove is provided in the top of the mounting frame, and a slider is slidably connected to the inner wall of the second square groove, and a milling device is installed at the lower end of the slider, and the milling device is used for cutting the casting, and one of the inner walls of the first square groove is rotatably connected to a second screw, and the side wall of the second screw is threadedly connected to the mounting frame, and the inner wall of the other first square groove is fixedly connected to a sliding rod, and the side wall of the sliding rod is slidably connected to the mounting frame, and the side wall of the frame is fixedly connected to the first motor, and the output end of the first motor passes through the side wall of the frame and is fixedly connected to the second screw, and the inner wall of the second square groove is rotatably connected to a third screw, and the side wall of the third screw is threadedly connected to the slider, and the side wall of the mounting frame is fixedly connected to the second motor, and the output end of the second motor passes through the side wall of the mounting frame and is fixedly connected to the third screw.

A large casting cutting method comprises the following steps:

S1. First, place the casting next to the rack, then start the hydraulic cylinder so that the U-shaped clamping plate clamps the casting, then pass a positive current to the servo motor to drive the casting to rotate and move the casting into the rack for cutting.

S2, then start the milling device to cut the casting, drive the first motor and the second motor to drive the milling device to move, and mill various positions on the surface of the casting;

S3, by supplying a positive current to the servo motor, the clamped casting can be driven to rotate, and then the casting can be turned over and different surfaces of the casting can be cut;

S4. After the cutting is completed, a reverse current is supplied to the servo motor to drive the casting to rotate after the cutting is completed, so that it is moved to the ground again, thereby completing the unloading.

The present invention has the following beneficial effects:

1. By setting up a handling mechanism and driving the servo motor, the U-shaped clamping plate can be driven to rotate and the fixed castings can be handled without setting up additional lifting equipment or manipulators, which greatly reduces production costs;

2. Through the linkage of the same series of parts, the casting can be turned over by the servo motor, so that different sides can be processed, which not only simplifies the product structure but also makes it easier and more convenient to use;

3. By setting up a lifting mechanism, since there is a certain height difference between the rack and the ground, the large casting is lifted synchronously for a distance during the transportation into the rack to avoid the bottom of the casting hitting the bottom of the rack, which makes it impossible to flip it into place. It can also make a distance between the casting and the bottom of the rack, thereby avoiding the interference of the bottom of the rack with the flipping of the casting when the casting is turned over later;

4. By setting up a pump air mechanism, during the flipping and transporting process, the rotation of the third spline sleeve will synchronously drive the cam to rotate, and the cam cooperates with the third spring to drive the T-bar to slide back and forth, thereby driving the sliding plug to slide back and forth in a sealed manner, so that the external air is sucked into the pump air box through the one-way air intake pipe, and then the air in the pump air box is squeezed into the slide groove through the one-way air supply pipe, so that the pressure in the slide groove is increased, giving pressure to the rectangular clamping plate, thereby increasing the pressure of the rectangular clamping plate on the casting, and improving the clamping force, so as to prevent the casting from falling due to insufficient clamping force during the flipping and transporting process. Since the space on both sides of the sliding plug is provided with a one-way air intake pipe and a one-way air supply pipe, and the air extraction and suction processes are opposite, air can be continuously supplied to the slide groove during the transporting process, so that the rectangular clamping plate maintains a large clamping force;

5. By setting the air intake cavity, the jet holes and the connecting pipe, when the pressure in the chute exceeds the threshold of the pressure relief valve, the pressure relief valve will open, and then the air in the chute will enter the air intake cavity through the connecting pipe, and then the air will be ejected through multiple jet holes to form an air jet between the U-shaped clamping plate and the casting, accelerating the air flow rate between them. According to Bernoulli's theorem, the faster the gas flow rate, the smaller the pressure generated, and thus the pressure on the inside of the U-shaped clamping plate is smaller than that on the outside, thereby giving the U-shaped clamping plate a thrust, so that the U-shaped clamping plate gives the casting a greater clamping force, further improving the clamping and fixing effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a large casting cutting processing device proposed by the present invention;

FIG2 is a schematic cross-sectional view of the structure in FIG1 ;

FIG3 is an enlarged schematic diagram of the structure at point A in FIG2 ;

FIG4 is an enlarged schematic diagram of the structure at B in FIG2 ;

FIG5 is an enlarged schematic diagram of the structure at point C in FIG2;

FIG6 is an enlarged schematic diagram of the structure at D in FIG2;

FIG7 is an enlarged schematic diagram of the structure at E in FIG2 ;

FIG8 is a schematic diagram of the circuit connection between the servo motor, the electric push rod, the first conductive block and the second conductive block.

In the figure: 1, frame; 2, mounting groove; 3, mounting plate; 4, first triangular plate; 5, first spline sleeve; 6, first rotating shaft; 7, cross plate; 8, second rotating shaft; 9, hydraulic cylinder; 10, U-shaped clamping plate; 11, groove; 12, first spring; 13, slide groove; 14, rectangular clamping plate; 15, second spring; 16, servo motor; 17, electric push rod; 18, second triangular plate; 19, second spline sleeve; 20, first spline shaft; 21, first driving wheel; 22, first driven wheel; 23, first conductive block; 24, second conductive block; 25, first lead screw; 26, square plate; 27, first Three spline sleeves; 28, second spline shaft; 29, first bevel gear; 30, second bevel gear; 31, second driving wheel; 32, second driven wheel; 33, pump air box; 34, sliding plug; 35, T-bar; 36, third spring; 37, cam; 38, one-way air inlet pipe; 39, one-way air supply pipe; 40, air inlet chamber; 41, jet hole; 42, connecting pipe; 43, guide rod; 44, first square groove; 45, mounting frame; 47, second square groove; 48, slider; 49, milling device; 50, second lead screw; 51, slider; 52, first motor; 53, third lead screw; 54, second motor.

DETAILED DESCRIPTION

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

1 to 8 , a large casting cutting and processing device includes a frame 1 and two U-shaped clamping plates 10;

The handling mechanism includes two mounting grooves 2 symmetrically opened on the inner wall of the frame 1, two mounting plates 3 are slidably connected to the inner walls of the two mounting grooves 2, two first triangular plates 4 are fixedly connected to the upper ends of the two mounting plates 3, one of the first triangular plates 4 is rotatably connected to the side wall with a first spline sleeve 5, and the other first triangular plate 4 is rotatably connected to the side wall with a first rotating shaft 6, and the other end of the first rotating shaft 6 is fixedly connected to the first spline sleeve 5, and the side wall of the first rotating shaft 6 is symmetrically fixedly connected to two transverse plates 7, and the side walls of the two transverse plates 7 are both rotatably connected to the second rotating shaft 8. The ends of the second rotating shafts 8 that are close to each other are fixedly connected with a hydraulic cylinder 9, a groove 11 is provided on the side wall of the U-shaped clamping plate 10, a movable end of the hydraulic cylinder 9 is slidably connected to the inner wall of the groove 11, a first spring 12 is fixedly connected to the inner wall of the groove 11, the other end of the first spring 12 is fixedly connected to the movable end of the hydraulic cylinder 9, a sliding groove 13 is provided on the side wall of the U-shaped clamping plate 10, a rectangular clamping plate 14 is sealingly and slidably connected to the inner wall of the sliding groove 13, and a plurality of second springs 15 are fixedly connected between the rectangular clamping plate 14 and the inner wall of the sliding groove 13.

It should be noted that the stiffness coefficient of the first spring 12 is smaller than that of the second spring 15 , so the second spring 15 will start to compress only when the first spring 12 is compressed to the limit.

A driving mechanism is installed on the mounting plate 3, and the driving mechanism includes a servo motor 16 fixedly connected to the upper end of the mounting plate 3, an electric push rod 17 fixedly connected to the output end of the servo motor 16, a second triangular plate 18 fixedly connected to the upper end of the mounting plate 3, a second spline sleeve 19 rotatably connected to the side wall of the second triangular plate 18, a first spline shaft 20 fixedly connected to the movable end of the electric push rod 17, the first spline shaft 20 is slidably connected to the first spline sleeve 5 and the inner wall of the second spline sleeve 19, a first driving wheel 21 is fixedly connected to the side wall of the second spline sleeve 19, one end of one of the second rotating shafts 8 passes through the side wall of the cross plate 7 and is fixedly connected to the first driven wheel 22, and the first driving wheel 21 is connected to the first driven wheel 22 through a synchronous belt.

Furthermore, when a positive current is supplied to the servo motor 16, the servo motor 16 will drive the electric push rod 17 to rotate. At this time, the electric push rod 17 is not supplied with current and is in an extended state, and then the first spline shaft 20 is located in the first spline sleeve 5. The rotation of the electric push rod 17 will drive the first spline shaft 20 to rotate, and then drive the first spline sleeve 5 to rotate, drive the first rotating shaft 6 to rotate, thereby driving the cross plate 7 to rotate, drive the U-shaped clamping plate 10 to rotate, and then drive the clamped large casting to rotate with the axis of the first rotating shaft 6 as the center of the circle, and slowly move the large casting into the frame 1, and then there is no need to set up additional lifting equipment or manipulators, which greatly reduces production costs.

A first conductive block 23 is fixedly connected to the side wall of the first triangular plate 4, a second conductive block 24 is fixedly connected to the side wall of the first rotating shaft 6, and the servo motor 16, the electric push rod 17, the first conductive block 23, the second conductive block 24, the diode and the power supply are electrically connected through wires.

It should be noted that the diode has unidirectional conductivity. It can conduct electricity normally when a forward current is passed through it, but it will block the current when a reverse current is passed through it. This is existing technology and will not be elaborated here.

It should be noted that one end of the first spline sleeve 5 close to the first spline shaft 20 is chamfered to facilitate insertion of the first spline shaft 20 .

Furthermore, when the first rotating shaft 6 rotates 180 degrees, the second conductive block 24 will rotate until it contacts the first conductive block 23. At this time, the circuit is connected. By supplying a positive current to the servo motor 16, the electric push rod 17 will be energized and shortened, driving the first spline shaft 20 to move out of the first spline sleeve 5 and enter the second spline sleeve 19. At this time, the rotation of the servo motor 16 will drive the first spline shaft 20 to rotate, and then drive the second spline sleeve 19 to rotate, drive the first driving wheel 21 to rotate, drive the first driven wheel 22 to rotate, thereby driving the second rotating shaft 8 to rotate, and drive the clamped casting to rotate, so that the casting can be turned over, so that its different surfaces can be processed.

A lifting mechanism is installed on the frame 1, and the lifting mechanism includes a square plate 26 fixedly connected to the inner wall of the frame 1, and the upper end of the square plate 26 is rotatably connected to the third spline sleeve 27, the inner wall of one of the mounting grooves 2 is rotatably connected to the first lead screw 25, the side wall of the first lead screw 25 is threadedly connected to the mounting plate 3, the inner wall of the other mounting groove 2 is fixedly connected to the guide rod 43, the side wall of the guide rod 43 is slidably connected to the mounting plate 3, the side wall of the first lead screw 25 is fixedly connected to the second driving wheel 31, the side wall of the third spline sleeve 27 is fixedly connected to the second driven wheel 32, the second driving wheel 31 and the second driven wheel 32 are connected by a synchronous belt, the lower end of the mounting plate 3 is rotatably connected to the second spline shaft 28, the second spline shaft 28 is slidably connected to the inner wall of the third spline sleeve 27, the side wall of the first rotating shaft 6 is fixedly connected to the first bevel gear 29, the upper end of the second spline shaft 28 passes through the upper end of the mounting plate 3 and is fixedly connected to the second bevel gear 30, and the first bevel gear 29 is meshed with the second bevel gear 30.

Furthermore, during the transportation process, the rotation of the first rotating shaft 6 will synchronously drive the first bevel gear 29 to rotate, drive the second bevel gear 30 to rotate, and then drive the second spline shaft 28 to rotate, drive the third spline sleeve 27 to rotate, and then drive the second driven wheel 32 to rotate, drive the second driving wheel 31 to rotate, and drive the first lead screw 25 to rotate, so that the mounting plate 3 slides upward on the inner wall of the mounting groove 2, so that the clamped large casting is synchronously lifted upward during the transportation process. Since there is a certain height difference between the frame 1 and the ground, the large casting is synchronously lifted a distance during the transportation into the frame 1 to avoid the bottom end of the casting from abutting against the bottom inner of the frame 1, causing it to be unable to flip into place. It can also make a distance between the casting and the bottom inner of the frame 1, so as to avoid the bottom inner of the frame 1 interfering with the flipping of the casting when the casting is turned over later.

The frame 1 is provided with a pumping mechanism, which includes a pumping box 33 fixedly connected to the inner wall of the frame 1, a sliding plug 34 is sealingly and slidably connected to the inner wall of the pumping box 33, a T-shaped rod 35 is slidably connected to the side wall of the pumping box 33, one end of the T-shaped rod 35 is fixedly connected to the side wall of the sliding plug 34, a third spring 36 is sleeved on the side wall of the T-shaped rod 35, two ends of the third spring 36 are respectively fixedly connected to the side wall of the sliding plug 34 and the inner wall of the pumping box 33, and the lower end of the third spline sleeve 27 penetrates the square plate A cam 37 is fixedly connected to the lower end of 26, and the side wall of the cam 37 slides against the side wall of the T-bar 35. Two one-way air inlet pipes 38 are fixedly connected to the inner wall of the pump air box 33. The one-way air inlet pipe 38 only allows external air to enter the pump air box 33. The pump air box 33 is connected to the slide groove 13 through a one-way air supply pipe 39. The one-way air supply pipe 39 only allows the air in the pump air box 33 to enter the slide groove 13, and the one-way air inlet pipe 38 and the one-way air supply pipe 39 are both made of hoses.

It should be noted that a one-way air inlet pipe 38 and a one-way air supply pipe 39 (as shown in FIG. 6 ) are provided in the space on both sides of the sliding plug 34 , so that when the sliding plug 34 slides back and forth in a sealed manner, air can be continuously supplied to the sliding groove 13 .

Furthermore, during the flipping and transporting process, the rotation of the third spline sleeve 27 will synchronously drive the cam 37 to rotate, and the cam 37 cooperates with the third spring 36 to drive the T-bar 35 to slide back and forth, thereby driving the sliding plug 34 to slide back and forth in a sealed manner, so that the external air is sucked into the pump air box 33 through the one-way air intake pipe 38, and then the air in the pump air box 33 is squeezed into the slide groove 13 through the one-way air supply pipe 39, so that the pressure in the slide groove 13 increases, giving pressure to the rectangular clamping plate 14, thereby increasing the pressure of the rectangular clamping plate 14 on the casting, increasing the clamping force, and preventing the casting from falling due to insufficient clamping force during the flipping and transporting process. Since the space on both sides of the sliding plug 34 is provided with a one-way air intake pipe 38 and a one-way air supply pipe 39, and the air extraction and suction processes are opposite, air can be continuously supplied to the slide groove 13 during the transport process, so that the rectangular clamping plate 14 maintains a large clamping force.

Two air inlet cavities 40 are symmetrically provided in the U-shaped clamping plate 10 . A plurality of air injection holes 41 are provided on the inner wall of the air inlet cavities 40 . The slide groove 13 is connected to the air inlet cavities 40 through a connecting pipe 42 . A pressure relief valve is installed on the inner wall of the connecting pipe 42 .

Furthermore, when the pressure in the chute 13 exceeds the threshold of the pressure relief valve, the pressure relief valve will open, and the air in the chute 13 will enter the air inlet chamber 40 through the connecting pipe 42, and then the air will be ejected through multiple jet holes 41, forming an air jet between the U-shaped clamping plate 10 and the casting, accelerating the air flow rate therebetween. According to Bernoulli's theorem, the faster the gas flow rate, the smaller the pressure generated, and the pressure on the inside of the U-shaped clamping plate 10 is smaller than that on the outside, thereby giving the U-shaped clamping plate 10 a thrust, so that the U-shaped clamping plate 10 gives the casting a greater clamping force, further improving the clamping and fixing effect.

The upper end of the frame 1 is symmetrically provided with two first square grooves 44, the inner walls of the two first square grooves 44 are slidably connected to a mounting frame 45, a second square groove 47 is provided at the top of the mounting frame 45, a slider 48 is slidably connected to the inner wall of the second square groove 47, a milling device 49 is installed at the lower end of the slider 48, and the milling device 49 is used for cutting the casting, one of the first square grooves 44 is rotatably connected to the inner wall of the second screw 50, and the side wall of the second screw 50 is threadedly connected to the mounting frame 45, and the other first square groove A slide bar 51 is fixedly connected to the inner wall of 44, and the side wall of the slide bar 51 is slidably connected to the mounting frame 45. A first motor 52 is fixedly connected to the side wall of the frame 1, and the output end of the first motor 52 passes through the side wall of the frame 1 and is fixedly connected to the second lead screw 50. A third lead screw 53 is rotatably connected to the inner wall of the second square groove 47, and the side wall of the third lead screw 53 is threadedly connected to the slider 48. A second motor 54 is fixedly connected to the side wall of the mounting frame 45, and the output end of the second motor 54 passes through the side wall of the mounting frame 45 and is fixedly connected to the third lead screw 53.

Furthermore, the milling device 49 is started to perform cutting processing on the surface of the casting. During the cutting processing, the first motor 52 can be driven to rotate, which drives the second lead screw 50 to rotate, drives the mounting frame 45 to move, and then drives the milling device 49 to move forward and backward. By driving the second motor 54 to rotate, the third lead screw 53 is driven to rotate, and then the slider 48 is driven to move, and the milling device 49 is driven to translate left and right, so that the position of the milling device 49 can be adjusted, and cutting processing can be performed on different positions of the casting.

A large casting cutting method comprises the following steps:

S1. First, place the casting beside the frame 1, then start the hydraulic cylinder 9, so that the U-shaped clamping plate 10 clamps and fixes the casting, and then pass a positive current to the servo motor 16 to drive the casting to rotate, and move the casting into the frame 1 for cutting processing;

S2, then start the milling device 49 to cut the casting, drive the first motor 52 and the second motor 54 to drive the milling device 49 to move and mill various positions on the surface of the casting;

S3, by supplying a positive current to the servo motor 16, the clamped and fixed casting can be driven to rotate, and then the casting is turned over and different surfaces of the casting are cut;

S4, after the cutting is completed, a reverse current is supplied to the servo motor 16 to drive the casting to rotate after the cutting is completed, so that it is moved to the ground again, thereby completing the unloading.

In the present invention, by driving the hydraulic cylinder 9 to extend, the U-shaped clamping plate 10 is driven to approach each other, and then the two rectangular clamping plates 14 are driven to approach each other, so that the large casting is clamped and fixed. During the clamping process, the hydraulic cylinder 9 will first compress the first spring 12 to the limit, and then when the rectangular clamping plate 14 clamps the casting, the rectangular clamping plate 14 will first squeeze the second spring 15 until the second spring 15 is compressed to the limit, so that the large casting can be clamped and fixed, and the deformation of the first spring 12 and the second spring 15 can provide a buffer to prevent the surface of the large casting from being suddenly stressed and causing damage to the surface of the large casting.

After the large casting is clamped, a forward current is supplied to the servo motor 16, and the servo motor 16 drives the electric push rod 17 to rotate. At this time, the electric push rod 17 is not supplied with current and is in an extended state, and then the first spline shaft 20 is located in the first spline sleeve 5. The rotation of the electric push rod 17 drives the first spline shaft 20 to rotate, and then drives the first spline sleeve 5 to rotate, drives the first rotating shaft 6 to rotate, thereby drives the cross plate 7 to rotate, drives the U-shaped clamping plate 10 to rotate, and then drives the clamped large casting to rotate with the axis of the first rotating shaft 6 as the center of the circle, and slowly transports the large casting to the frame 1.

During the transportation process, the rotation of the first rotating shaft 6 will synchronously drive the first bevel gear 29 to rotate, drive the second bevel gear 30 to rotate, and then drive the second spline shaft 28 to rotate, drive the third spline sleeve 27 to rotate, and then drive the second driven wheel 32 to rotate, drive the second driving wheel 31 to rotate, and drive the first lead screw 25 to rotate, so that the mounting plate 3 slides upward on the inner wall of the mounting groove 2, so that the clamped large casting is synchronously lifted upward during the transportation process. Since there is a certain height difference between the frame 1 and the ground, the large casting is synchronously lifted for a distance during the transportation into the frame 1 to avoid the bottom end of the casting from abutting against the bottom of the frame 1, causing it to be unable to flip into place. It can also make a distance between the casting and the bottom of the frame 1, so as to avoid the bottom of the frame 1 interfering with the flipping of the casting when the casting is turned over later.

In addition, during the flipping and transporting process, the rotation of the third spline sleeve 27 will synchronously drive the cam 37 to rotate, and the cam 37 cooperates with the third spring 36 to drive the T-bar 35 to slide back and forth, thereby driving the sliding plug 34 to slide back and forth in a sealed manner, so that the external air is sucked into the pump air box 33 through the one-way air intake pipe 38, and then the air in the pump air box 33 is squeezed into the slide groove 13 through the one-way air supply pipe 39, so that the pressure in the slide groove 13 increases, giving pressure to the rectangular clamping plate 14, thereby increasing the pressure of the rectangular clamping plate 14 on the casting, and enhancing the clamping force, to prevent the casting from falling due to insufficient clamping force during the flipping and transporting process. Since the space on both sides of the sliding plug 34 is provided with a one-way air intake pipe 38 and a one-way air supply pipe 39, and the air extraction and suction processes are opposite, air can be continuously supplied to the slide groove 13 during the transport process, so that the rectangular clamping plate 14 maintains a large clamping force.

When the pressure in the chute 13 exceeds the threshold of the pressure relief valve, the pressure relief valve will open, and the air in the chute 13 will enter the air inlet chamber 40 through the connecting pipe 42, and then the air will be ejected through multiple jet holes 41 to form an air jet between the U-shaped clamping plate 10 and the casting, accelerating the air flow rate therebetween. According to Bernoulli's theorem, the faster the gas flow rate, the smaller the pressure generated, and the pressure on the inside of the U-shaped clamping plate 10 is smaller than that on the outside, thereby giving the U-shaped clamping plate 10 a thrust, so that the U-shaped clamping plate 10 gives the casting a greater clamping force, further improving the clamping and fixing effect.

When the first rotating shaft 6 rotates 180 degrees, the casting will be moved into place. At this time, the milling device 49 can be started to cut the surface of the casting. During the cutting process, the first motor 52 can be driven to rotate, which drives the second lead screw 50 to rotate, drives the mounting frame 45 to move, and then drives the milling device 49 to move forward and backward. By driving the second motor 54 to rotate, the third lead screw 53 is driven to rotate, and then the slider 48 is driven to move, and the milling device 49 is driven to translate left and right, so that the position of the milling device 49 can be adjusted, and cutting can be performed on different positions of the casting.

In addition, after the first rotating shaft 6 rotates 180 degrees, the second conductive block 24 will rotate until it contacts the first conductive block 23. At this time, the circuit is connected, and by supplying a positive current to the servo motor 16, the electric push rod 17 is energized and shortened, driving the first spline shaft 20 to move out of the first spline sleeve 5 and enter the second spline sleeve 19. At this time, the rotation of the servo motor 16 will drive the first spline shaft 20 to rotate, and then drive the second spline sleeve 19 to rotate, drive the first driving wheel 21 to rotate, drive the first driven wheel 22 to rotate, thereby driving the second rotating shaft 8 to rotate, and drive the clamped casting to rotate, so that the casting can be turned over, so that its different surfaces can be processed.

When all the cutting and processing of the casting is completed, a reverse current is passed through the servo motor 16. Since a diode is provided in the circuit and the diode has the performance of unidirectional conductivity, the electric push rod 17 will be powered off and extended at this time, driving the first spline shaft 20 to move out of the second spline sleeve 19 and re-enter the first spline sleeve 5. The reverse rotation of the servo motor 16 will drive the first spline shaft 20 to rotate in the opposite direction, drive the first spline sleeve 5 to rotate in the opposite direction, and then drive the first rotating shaft 6 to rotate 180 degrees in the opposite direction, so that the casting after cutting and processing is rotated 180 degrees in the opposite direction and transported to the ground again. In the process of transportation, the first lead screw 25 will rotate in the opposite direction, and then synchronously move the mounting plate 3 downward, so that the casting moves downward synchronously, so that it can safely reach the ground position and complete the unloading.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (8)

1. A large casting cutting and processing device, characterized in that it comprises: A frame (1) and two U-shaped clamping plates (10); The handling mechanism comprises two mounting grooves (2) symmetrically arranged on the inner wall of the frame (1), the inner walls of the two mounting grooves (2) being slidably connected to two mounting plates (3), the upper ends of the two mounting plates (3) being fixedly connected to two first triangular plates (4), one of the side walls of the first triangular plates (4) being rotatably connected to a first spline sleeve (5), the other side wall of the first triangular plate (4) being rotatably connected to a first rotating shaft (6), the other end of the first rotating shaft (6) being fixedly connected to the first spline sleeve (5), the side wall of the first rotating shaft (6) being symmetrically fixedly connected to two transverse plates (7), and the side walls of the two transverse plates (7) being rotatably connected to a second rotating shaft (8) The ends of the second rotating shafts (8) that are close to each other are fixedly connected to a hydraulic cylinder (9), a groove (11) is provided on the side wall of the U-shaped clamping plate (10), a movable end of the hydraulic cylinder (9) is slidably connected to the inner wall of the groove (11), a first spring (12) is fixedly connected to the inner wall of the groove (11), the other end of the first spring (12) is fixedly connected to the movable end of the hydraulic cylinder (9), a sliding groove (13) is provided on the side wall of the U-shaped clamping plate (10), a rectangular clamping plate (14) is sealingly slidably connected to the inner wall of the sliding groove (13), and a plurality of second springs (15) are fixedly connected between the rectangular clamping plate (14) and the inner wall of the sliding groove (13). 2. A large casting cutting and processing device according to claim 1, characterized in that: A driving mechanism is mounted on the mounting plate (3), the driving mechanism comprising a servo motor (16) fixedly connected to the upper end of the mounting plate (3), an output end of the servo motor (16) fixedly connected to an electric push rod (17), a second triangular plate (18) fixedly connected to the upper end of the mounting plate (3), a side wall of the second triangular plate (18) rotatably connected to a second spline sleeve (19), a movable end of the electric push rod (17) fixedly connected to a first spline shaft (20), the first spline shaft (20) being slidably connected to the first spline sleeve (5) and the inner wall of the second spline sleeve (19), a first driving wheel (21) fixedly connected to the side wall of the second spline sleeve (19), one end of one of the second rotating shafts (8) passing through the side wall of the transverse plate (7) and fixedly connected to a first driven wheel (22), the first driving wheel (21) being connected to the first driven wheel (22) via a synchronous belt. 3. A large casting cutting and processing device according to claim 2, characterized in that: A first conductive block (23) is fixedly connected to a side wall of the first triangular plate (4), a second conductive block (24) is fixedly connected to a side wall of the first rotating shaft (6), and the servo motor (16), the electric push rod (17), the first conductive block (23), the second conductive block (24), the diode and the power supply are electrically connected via wires. 4. A large casting cutting and processing device according to claim 3, characterized in that: The frame (1) is provided with a lifting mechanism, the lifting mechanism comprising a square plate (26) fixedly connected to the inner wall of the frame (1), the upper end of the square plate (26) being rotatably connected to a third spline sleeve (27), the inner wall of one of the mounting grooves (2) being rotatably connected to a first lead screw (25), the side wall of the first lead screw (25) being threadedly connected to the mounting plate (3), the inner wall of the other mounting groove (2) being fixedly connected to a guide rod (43), the side wall of the guide rod (43) being slidably connected to the mounting plate (3), the side wall of the first lead screw (25) being fixedly connected to a second driving wheel (31), the The side wall of the third spline sleeve (27) is fixedly connected to a second driven wheel (32); the second driving wheel (31) and the second driven wheel (32) are connected via a synchronous belt; the lower end of the mounting plate (3) is rotatably connected to a second spline shaft (28); the second spline shaft (28) is slidably connected to the inner wall of the third spline sleeve (27); the side wall of the first rotating shaft (6) is fixedly connected to a first bevel gear (29); the upper end of the second spline shaft (28) passes through the upper end of the mounting plate (3) and is fixedly connected to a second bevel gear (30); the first bevel gear (29) is meshingly connected to the second bevel gear (30). 5. A large casting cutting and processing device according to claim 4, characterized in that: The frame (1) is provided with an air pump mechanism, the air pump mechanism comprising an air pump box (33) fixedly connected to the inner wall of the frame (1), the inner wall of the air pump box (33) being sealingly and slidably connected to a sliding plug (34), the side wall of the air pump box (33) being slidably connected to a T-shaped rod (35), one end of the T-shaped rod (35) being fixedly connected to the side wall of the sliding plug (34), the side wall of the T-shaped rod (35) being sleeved with a third spring (36), the third spring (36) 6) The two ends are respectively fixedly connected to the side wall of the sliding plug (34) and the inner wall of the pump air box (33); the lower end of the third spline sleeve (27) passes through the lower end of the square plate (26) and is fixedly connected to a cam (37); the side wall of the cam (37) and the side wall of the T-bar (35) slide against each other; the inner wall of the pump air box (33) is fixedly connected to two one-way air inlet pipes (38); the pump air box (33) is connected to the slide groove (13) through a one-way air supply pipe (39). 6. A large casting cutting and processing device according to claim 5, characterized in that: Two air inlet cavities (40) are symmetrically provided in the U-shaped clamping plate (10), and a plurality of air injection holes (41) are provided on the inner wall of the air inlet cavity (40). The slide groove (13) is connected to the air inlet cavity (40) via a connecting pipe (42), and a pressure relief valve is installed on the inner wall of the connecting pipe (42). 7. A large casting cutting and processing device according to claim 6, characterized in that: The upper end of the frame (1) is symmetrically provided with two first square grooves (44), the inner walls of the two first square grooves (44) are slidably connected to a mounting frame (45), the top of the mounting frame (45) is provided with a second square groove (47), the inner wall of the second square groove (47) is slidably connected to a slider (48), a milling device (49) is installed at the lower end of the slider (48), and the milling device (49) is used for cutting the casting, one of the inner walls of the first square grooves (44) is rotatably connected to a second lead screw (50), the side wall of the second lead screw (50) is threadedly connected to the mounting frame (45), and the other first square groove ( A slide bar (51) is fixedly connected to the inner wall of the frame (44), and the side wall of the slide bar (51) is slidably connected to the mounting frame (45). A first motor (52) is fixedly connected to the side wall of the frame (1), and the output end of the first motor (52) passes through the side wall of the frame (1) and is fixedly connected to the second lead screw (50). A third lead screw (53) is rotatably connected to the inner wall of the second square groove (47), and the side wall of the third lead screw (53) is threadedly connected to the slider (48). A second motor (54) is fixedly connected to the side wall of the mounting frame (45), and the output end of the second motor (54) passes through the side wall of the mounting frame (45) and is fixedly connected to the third lead screw (53). 8. A large casting cutting method, comprising a large casting cutting device as claimed in claim 7, characterized in that it comprises the following steps: S1. First, the casting is placed next to the frame (1), and then the hydraulic cylinder (9) is started so that the U-shaped clamping plate (10) clamps and fixes the casting. Then, a positive current is supplied to the servo motor (16) to drive the casting to rotate and move the casting into the frame (1) for cutting. S2, then starting the milling device (49) to perform cutting processing on the casting, driving the first motor (52) and the second motor (54) to drive the milling device (49) to move and perform milling on various positions on the surface of the casting; S3, by supplying a positive current to the servo motor (16), the clamped and fixed casting can be driven to rotate, thereby turning the casting over and cutting different surfaces of the casting; S4. After the cutting is completed, a reverse current is supplied to the servo motor (16) to drive the casting to rotate after the cutting is completed, so that it is moved to the ground again, thereby completing the unloading.