A semi-gear driven servo tilting gravity machine

Abstract

The present invention relates to a servo tilting gravity machine with a semi-gear transmission, comprising a base and a main oil cylinder, with a left large ring and a right large ring provided on either side of the base, and a fixed mold plate fixed on the base, a guide column provided on the fixed mold plate, a top plate installed on the upper end of the guide column, and a movable mold plate movably connected to the guide column. The servo hydraulic station device also includes a side mold device, a drag chain device, a drive device, and a cooling device. The servo hydraulic station device is connected to the main oil cylinder, the side mold device is installed on both sides of the fixed mold plate, the drag chain device includes a drag chain device 1 and a drag chain device 2, and the drive device and the cooling device are respectively installed on both sides of the base. The design of the gears of the present invention only requires rotation of the actual required angle, and the installation method of the drag chain makes the gravity machine structure streamlined and easy to operate. The improvement of the cooling device makes the cooling temperature more accurate, ultimately improving the quality of the product.

Description

Technical Field

[0001] The present invention relates to a servo tilting gravity machine, in particular to a servo tilting gravity machine with a half-gear transmission, and belongs to the technical field of gravity casting equipment. Background Art

[0002] The existing tilting type gravity casting machine generally uses an oil cylinder to drive the casting frame, allowing the gravity machine to rotate and position within 0 to 90 degrees, thereby realizing casting at different angles. However, its positioning angle has poor accuracy and takes a long time to debug, which is not conducive to precise control during casting. Therefore, those skilled in the art have proposed a technology of driving a rotating seat through a servo motor, which can accurately position the rotating ear seat of the gravity casting machine from 0 to 180 degrees, and can also adjust the stroke of the upper mold oil cylinder to improve work efficiency. However, in actual operation, there is no need for 0-180 degree rotation, and the idle rotation part causes energy waste. Moreover, the drag chain used to place pipelines in the prior art makes the gravity machine bulky and inconvenient to operate. The defects of the technology such as the inability of its cooling device to achieve precise control of the cooling temperature and the inability of the solid gear mechanism to install the left and right core pulling mechanisms ultimately directly affect the product quality.

[0003] Therefore, the present invention is proposed. Summary of the Invention

[0004] In response to the above-mentioned technical problems of the prior art, the purpose of the present invention is to provide a servo tilting gravity machine with a semi-gear transmission, the gear design of which only needs to rotate the actual required angle, and the installation method of the drag chain makes the gravity machine structure streamlined and easy to operate. The improvement of the cooling device makes the cooling temperature more precise. The setting of the side mold device can manually adjust the side mold center height according to the height of the mold core block and connect it to the mold to achieve quick fixation. The servo hydraulic station device enables the motor to operate at a low speed. The improvement of the structure ultimately improves the quality of the product.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions:

[0006] A servo tilting gravity machine with a semi-gear transmission comprises a base and a main oil cylinder, a left large ring and a right large ring are respectively provided on both sides of the base, and a fixed template is fixed on the base, a guide column is provided on the fixed template, a top plate is installed on the upper end of the guide column, the left and right ends of the top plate are respectively fixed on the left large ring and the right large ring, and a movable template is movably connected to the guide column, and the movable template is located between the top plate and the fixed template, and also comprises a servo hydraulic station device, a side mold device, a drag chain device, a driving device and a cooling device, the servo hydraulic station device is connected to the main oil cylinder, the side mold device is installed on both sides of the fixed template, the drag chain device comprises a drag chain device 1 and a drag chain device 2, the drag chain device One end of one is installed on the top plate and the other end is installed on the dynamic template. The drag chain device 2 is connected to the right large ring. The driving device and the cooling device are respectively installed on both sides of the base; the driving device includes a servo motor installed on the base, and the servo motor is provided with a reducer. The reducer is connected to a transmission shaft through a coupling, and a driving gear is installed on the transmission shaft. A driven gear is installed on the left large ring, and the driven gear is a half gear, and the half gear is engaged with the driving gear; the cooling device includes an air-cooled block and a water-cooled block, and the air-cooled block and the water-cooled block are connected to a pressurized water pump, and the pressurized water pump is connected to a water tank, and a water inlet solenoid valve is provided on the water tank.

[0007] A bearing is provided between the transmission shaft and the coupling, and a pulley is provided on one side of the driving gear.

[0008] The air-cooling block is connected to an on-off electromagnetic valve, and the water-cooling block is connected to a digital flow meter.

[0009] A liquid level gauge is installed on the water tank.

[0010] The four corners of the base are each provided with a supporting shaft, and the left large circular ring and the right large circular ring are pressed on the supporting shaft.

[0011] The side mold device includes a side mold base installed on the fixed mold plate, the side mold base is provided with a side mold connecting plate, the side mold connecting plate is connected to the side mold cylinder and the side mold guide rod, the end of the side mold guide rod is provided with a travel switch retaining ring, and the travel switch retaining ring is connected to the travel switch.

[0012] There are two side mold guide rods, which are respectively located on both sides of the side mold oil cylinder, and the travel switch retaining ring is installed at the end of one of the side mold guide rods.

[0013] A second mounting seat for a drag chain device is provided on one side of the base. The second drag chain device is located on the second mounting seat for the drag chain device and one end of the drag chain device is connected to the right large ring.

[0014] The servo tilting gravity machine with half-gear transmission of the present invention has the following beneficial effects:

[0015] 1. The driven gear in this invention is a half gear, so the rotating seat only needs to rotate the required angle, avoiding energy waste and complying with current energy conservation and environmental protection principles. In addition, the angle and speed of the tilting process can be adjusted steplessly to meet the needs of various casting processes.

[0016] 2. In the present invention, the two ends of the drag chain device 1 are respectively installed on the upper mounting plate and the dynamic template, and the drag chain device 2 is installed on the drag chain device 2 mounting seat and one end is connected to the right large ring, so that the frame will not be pulled or broken during the 120-degree S-shaped rotation operation, and the gravity machine has a simple structure and is easy to operate when installing pipelines.

[0017] 3. The cooling device in the present invention is provided with an air-cooling block and a water-cooling block, and the water volume is accurately controlled by devices such as a digital flow meter and a liquid level meter, thereby controlling the cooling temperature and ultimately improving product quality.

[0018] 4. The side mold device in the present invention is used for the casting process of the mold with left and right parting surfaces or left and right core pulling. The center height of the side mold can be manually adjusted according to the height of the mold core pulling block and connected to the mold for quick fixation.

[0019] 5. The servo hydraulic station device in the present invention has low energy consumption and can be shut down at any time when pressure and flow are not needed, and does not need to be in the starting state all the time; pressure and flow can be adjusted on the touch screen, which is simple and convenient; the pressure and flow can be adjusted in a large range, and the motor can operate at a low speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 3 It is a side structural schematic diagram of the present invention;

[0023] Figure 4 Schematic diagram of the installation position relationship of the servo hydraulic station device in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the cooling device in the present invention;

[0025] Figure 6 Schematic diagram of the structure of the servo motor in the present invention;

[0026] Figure 7 Schematic diagram of the structure of the side mold device in the present invention;

[0027] Among them, 1 is the base, 2 is the main oil cylinder, 3 is the left large ring, 4 is the right large ring, 5 is the fixed template, 6 is the guide column, 7 is the top plate, 8 is the dynamic template, 9 is the servo hydraulic device, 10 is the side mold device, 101 is the side mold base, 102 is the side mold connecting plate, 103 is the side mold oil cylinder, 104 is the side mold guide rod, 105 is the travel switch retaining ring, 106 is the travel switch, 11 is the drive device, 111 is the servo motor, 112 is the reducer, and 113 is the coupling , 114 is the transmission shaft, 115 is the driving gear, 116 is the driven gear, 117 is the bearing, 118 is the pulley, 12 is the cooling device, 121 is the air-cooling block, 122 is the water-cooling block, 123 is the pressurized water pump, 124 is the water tank, 125 is the water inlet solenoid valve, 126 is the on-off solenoid valve, 127 is the digital flow meter, 128 is the liquid level meter, 13 is the drag chain device one, 14 is the drag chain device two, 15 is the support shaft, and 16 is the mounting base of the drag chain device two. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to specific embodiments, but the protection scope of the present invention is not limited thereto.

[0029] like Figure 1-7 As shown, the semi-geared servo tilting gravity machine of the present invention comprises a base 1 and a main cylinder 2. The base 1 reduces the height of the machine and reduces manufacturing costs. A left large ring 3 and a right large ring 4 are provided on either side of the base 1. Support shafts 15 are provided at each of the four corners of the base 1, and the left and right large rings 3 and 4 are pressed against the support shafts 15. A fixed template 5 is fixed on the base 1, and a guide column 6 is provided on the fixed template 5. A top plate 7 is installed on the upper end of the guide column 6. The left and right ends of the top plate 7 are respectively fixed on the left large ring 3 and the right large ring 4, and a movable template 8 is movably connected to the guide column 6. The movable template 8 is located between the top plate 7 and the fixed template 5. The movable template 8 is moved up and down by the action of the main oil cylinder 2. It also includes a servo hydraulic station device 9, which is connected to the main oil cylinder 2 and is controlled by a hydraulic servo motor. The touch screen sets the hydraulic pressure and flow. After the PLC reads the set pressure and flow from the touch screen, it converts them into pressure analog signals and flow analog signals and outputs them to the hydraulic servo driver. The hydraulic servo driver controls the servo motor speed in a closed-loop manner according to the actual pressure feedback from the pressure sensor and the set analog pressure value, and controls the servo motor speed in a closed-loop manner according to the set analog flow value to achieve the set pressure and set flow requirements. The servo hydraulic station device 9 in the present invention has low energy consumption and can be shut down at any time when pressure and flow are not needed, and does not need to be in the started state all the time; the pressure and flow can be adjusted on the touch screen, which is simple and convenient; the pressure and flow can be adjusted in a large range, and the motor can operate at a low speed.

[0030] The present invention further includes a side mold assembly 10, which is mounted on both sides of the fixed mold plate 5 and includes a side mold base 101 mounted on the fixed mold plate 5. The side mold base 101 is provided with a side mold connecting plate 102, and the side mold connecting plate 102 is connected to a side mold cylinder 103 and a side mold guide rod 104. There are two side mold guide rods 104, one on each side of the side mold cylinder 103, and a travel switch retaining ring 105 is mounted on the end of one of the side mold guide rods 104. The travel switch retaining ring 105 is connected to a travel switch 106. The side mold assembly 10 is used in mold casting processes with left and right parting surfaces or left and right core pulling. The side mold center height can be manually adjusted according to the height of the mold core pulling block, and it can be quickly fixed when connected to the mold.

[0031] Furthermore, the drag chain device in the present invention includes a drag chain device 13 and a drag chain device 2 14, wherein the drag chain device 13 is internally installed with hydraulic hoses, cooling hoses and cables, etc., one end of which is installed on the top plate 7 and the other end is installed on the dynamic template 8, for protecting the internal hoses and cables. The drag chain device 2 14 is a rack rotating pipeline drag chain, which is located on the drag chain device 2 mounting seat 16 and one end is connected to the right large ring 4. The drag chain device 2 mounting seat 16 is located on one side of the base 1. The drag chain device 2 14 is used for routing protection of hydraulic pipes, cooling pipes and cables of various mechanisms on the rack, and the rack will not be pulled or broken during 120-degree S-shaped rotation operation. The installation method of the drag chain device in the present invention makes the gravity machine structure simple and convenient to operate when installing pipelines.

[0032] Preferably, the drive device 11 and the cooling device 12 of the present invention are respectively installed on both sides of the base 1. The drive device 11 includes a servo motor 111 installed on the base 1, and the servo motor 111 is provided with a reducer 112. The reducer 112 is connected to a transmission shaft 114 through a coupling 113. A bearing 117 is provided between the transmission shaft 114 and the coupling 113. A driving gear 115 is installed on the transmission shaft 114, and a pulley 118 is provided on one side of the driving gear 115. A driven gear 116 is installed on the left large ring 3. The driven gear 116 is a half gear, and the half gear is meshed with the driving gear 115. The gravity machine tilting system of the present invention is controlled by a servo motor 111. A touch screen sets the target tilting angle, tilting speed, and tilting acceleration and deceleration. The PLC reads the target angle, tilting speed, and tilting acceleration from the touch screen. Based on the requirements of each stage, the target angle, tilting speed, and tilting acceleration are converted into pulses of varying frequencies and sent to the servo driver via the Profinet communication protocol. After receiving the pulses, the servo driver controls the servo motor 111 to rotate at the set speed to the target angle, start at a specified acceleration, and stop at the target angle at a specified deceleration. Furthermore, the tilting angle can be freely set with high positioning accuracy. The tilting speed can also be freely set, and multi-speed stepless transmission is possible. Upon startup, the tilting machine can accelerate from 0 to the target speed at a specified acceleration, and decelerate at a set deceleration before reaching the target stop position. This allows for stepless adjustment of the tilting angle and speed, meeting the requirements of various casting processes. Furthermore, the driven gear 116 is a half gear, requiring only the required rotation angle, thus avoiding energy waste and complying with current energy conservation and environmental protection principles.

[0033] The cooling device 12 of the present invention includes an air-cooled block 121 and a water-cooled block 122. The air-cooled block 121 is connected to an on-off solenoid valve 126, and the water-cooled block 122 is connected to a digital flowmeter 127. The air-cooled block 121 and the water-cooled block 122 are connected to a pressurized water pump 123, which is connected to a water tank 124. The water tank 124 is provided with a water inlet solenoid valve 125, and a liquid level gauge 128 is installed on the water tank 124. The cooling device 12 is used to cool mold castings. Water is added to the water tank 124 through the water inlet solenoid valve 125. The liquid level gauge 128 is used to control the water inlet solenoid valve 125, and the pressurized water pump 123 pumps water into the mold. The digital flowmeter 127, liquid level gauge 128, and other devices precisely control the water volume, thereby controlling the cooling temperature and ultimately improving product quality.

[0034] The above embodiments are only used to illustrate the inventive concept of the present invention, and are not intended to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept should fall within the scope of protection of the present invention.

Claims

1. A servo tilting gravity machine with a semi-gear drive, comprising a base and a main oil cylinder, wherein a left large ring and a right large ring are respectively provided on either side of the base, and a fixed platen is fixed to the base, wherein a guide post is provided on the fixed platen, and a top plate is mounted on the upper end of the guide post, wherein the left and right ends of the top platen are respectively fixed to the left and right large rings, and a movable platen is movably connected to the guide post, and the movable platen is located between the top plate and the fixed platen, characterized in that: It also includes a servo hydraulic station device, a side mold device, a drag chain device, a drive device and a cooling device. The servo hydraulic station device is connected to the main oil cylinder. The side mold device is installed on both sides of the fixed mold plate. The drag chain device includes a drag chain device 1 and a drag chain device 2. One end of the drag chain device 1 is installed on the top plate and the other end is installed on the dynamic mold plate. The drag chain device 2 is connected to the right large ring. The drive device and the cooling device are respectively installed on both sides of the base; the drive device includes a servo motor installed on the base, and the servo motor is provided with a reducer. The reducer is connected to the transmission shaft through a coupling. A driving gear is installed on the transmission shaft, and a driven gear is installed on the left large ring. The driven gear is a half gear, and the half gear is engaged with the driving gear; the cooling device includes an air-cooled block and a water-cooled block, and the air-cooled block and the water-cooled block are connected to a pressurized water pump, and the pressurized water pump is connected to a water tank, and the water tank is provided with a water inlet solenoid valve; the side mold device includes a side mold base installed on the fixed mold plate, and the side mold base is provided with a side mold connecting plate, and the side mold connecting plate is connected to a side mold cylinder and a side mold guide rod, and a travel switch retaining ring is provided at the end of the side mold guide rod, and the travel switch retaining ring is connected to a travel switch.

2. The half-gear driven servo tilting gravity machine according to claim 1, characterized in that: A bearing is provided between the transmission shaft and the coupling, and a pulley is provided on one side of the driving gear.

3. The half-gear driven servo tilting gravity machine according to claim 1, characterized in that: The air-cooling block is connected to an on-off electromagnetic valve, and the water-cooling block is connected to a digital flow meter.

4. The half-gear driven servo tilting gravity machine according to claim 1, characterized in that: A liquid level gauge is installed on the water tank.

5. The half-gear driven servo tilting gravity machine according to claim 1, characterized in that: The four corners of the base are each provided with a supporting shaft, and the left large circular ring and the right large circular ring are pressed on the supporting shaft.

6. The half-gear driven servo tilting gravity machine according to claim 1, characterized in that: There are two side mold guide rods, which are respectively located on both sides of the side mold oil cylinder, and the travel switch retaining ring is installed at the end of one of the side mold guide rods.

7. The half-gear driven servo tilting gravity machine according to claim 1, characterized in that: A second mounting seat for a drag chain device is provided on one side of the base. The second drag chain device is located on the second mounting seat for the drag chain device and one end of the drag chain device is connected to the right large ring.

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