CN209773438U - Low-pressure casting machine adopting electro-hydraulic hybrid mold opening and closing mechanism - Google Patents
Low-pressure casting machine adopting electro-hydraulic hybrid mold opening and closing mechanism Download PDFInfo
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- CN209773438U CN209773438U CN201920355420.XU CN201920355420U CN209773438U CN 209773438 U CN209773438 U CN 209773438U CN 201920355420 U CN201920355420 U CN 201920355420U CN 209773438 U CN209773438 U CN 209773438U
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Abstract
The utility model relates to a low-pressure casting machine adopting an electro-hydraulic hybrid mould opening and closing mechanism, which comprises a closed surface, wherein vertical guide pillars are arranged at four corners of the closed surface provided with a lower mould, an upper fixed beam is arranged above the vertical guide pillars, and the closed surface, the vertical guide pillars and the upper fixed beam form a low-pressure casting machine installation frame; a spiral lifting cylinder is arranged on the inner side of each vertical guide post, and a guide device is sleeved on the spiral lifting cylinder. The utility model adopts the servo motor to drive the T-shaped screw rod, the screw rod rotates to drive the nut to move up and down, and the high-speed movement of the opening and closing die is realized; the balance cylinder is utilized to solve the balance of the dead weight of the die and reduce the friction force between the T-shaped screw and the nut; the problem of small stroke and large force during die opening and closing is solved by utilizing four short-distance oil cylinders. The application realizes the purposes of improving the production efficiency and saving the energy consumption through the structure.
Description
Technical Field
the utility model relates to an adopt electricity liquid to thoughtlessly move low pressure casting machine that opens and shuts die mechanism belongs to casting machine technical field.
Background
The low-pressure casting machine is general equipment for low-pressure casting of aluminum alloy, and can be widely applied to the production of aluminum alloy castings in automobiles, motorcycles, instruments, textile machinery and aerospace industries. The existing low-pressure casting machine adopts a hydraulic oil cylinder mode for opening and closing the die. However, the existing device has the following problems: the prior art mainly adopts a large-diameter long-stroke hydraulic oil cylinder to realize die opening and closing; because the piston of the hydraulic oil cylinder has large diameter and long stroke and has large requirement on the working flow of the hydraulic station, the oil tank of the hydraulic station has large volume and high motor power; therefore, the two functions of low-load high-speed movement and large-load low-speed movement cannot be switched at any time by using a single oil cylinder and a common hydraulic station.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve large-scale low pressure casting equipment and adopt hydraulic drive inefficiency, the precision is poor, unable digital control's problem provides an adopt the mixed low pressure casting machine who moves the mold opening and closing mechanism of electricity liquid.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a low-pressure casting machine adopting an electro-hydraulic hybrid mold opening and closing mechanism is characterized by comprising a closing surface, wherein vertical guide pillars are arranged at four corners of the closing surface provided with a lower mold, an upper fixed beam is arranged above the vertical guide pillars, and the closing surface, the vertical guide pillars and the upper fixed beam form a low-pressure casting machine installation frame; a spiral lifting cylinder is arranged on the inner side of each vertical guide post, and a guide device is sleeved on each spiral lifting cylinder; the upper cross beam and the synchronous bridge form an upper die frame, two ends of the upper cross beam are installed on the guide device, an upper die installation panel is installed below the upper die frame, the upper die is installed below the upper die installation panel, and an ejector rod mechanism is installed above the upper die frame and between the upper cross beams; the top installation electric drive mechanism of installation frame, electric drive mechanism including the motor that has the brake, three T shape gear box, four right angle gear boxes and transfer line, three T shape gear box divide into a main T shape gear box and two vice T shape gear boxes, the motor passes through the motor cabinet and installs the middle part at last tie-beam, main T shape gear box is connected to the output of motor, main T shape gear box passes through the vice T shape gear box that the connecting rod connects both sides, vice T shape gear box passes through the connecting rod and connects both sides right angle gear box, the right angle gear box is located the four corners department at installation frame top, a spiral elevator is connected to every right angle gear box. And a fixed beam for connecting the fixed beams on the upper parts of the two sides is arranged between the fixed beams on the upper parts.
The guide device is a rectangular metal plate, one end of the guide device is fixed on the side surface of the up-down moving assembly through a bolt, and the other end of the guide device abuts against the vertical guide post. The square frame formed by the connecting lines of the four vertical guide posts surrounds the outer side of the ore drawing formed by the connecting lines of the four spiral lifting cylinders.
The synchronous rotation of 4 screw rods is ensured by using a commutator and steering by using the control speed of a servo motor;
The balance cylinder is used for balancing the weight of the die and the movable plate, so that the friction force between the screw and the nut is reduced;
The self-locking of the trapezoidal screw is used, so that when a hydraulic system works, no sliding and no rotation are ensured between the nut and the screw; electro-hydraulic hybrid motion is adopted, so that the problems of low-load high-speed movement and large-load low-speed movement are solved; the mold is controlled by a servo motor, so that the mold can be digitally and accurately positioned.
On the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:
Furthermore, the spiral lifting cylinder comprises a screw rod and a lower bearing group arranged at the bottom end of the screw rod, the top end of the screw rod penetrates through the upper bearing group, and the middle part of the screw rod is sleeved with an up-and-down moving assembly; the up-down moving assembly comprises a piston, a nut is arranged in an inner cavity of the piston, a nut mounting step is arranged in the piston, the nut is fixed in the piston through a nut retaining ring and a support sleeve, a cylinder body consisting of an upper cylinder cover, a lower cylinder cover and a cylinder body is arranged on the outer side of the piston, the cylinder covers are connected with the cylinder body through bolts, a step is formed at the joint of the cylinder covers and the cylinder body, a sealing ring is arranged between the cylinder covers and the piston, a pipe joint is arranged on the cylinder covers, and an O-shaped ring and a sealing retaining ring are arranged between the cylinder body and; the upper buckling cover and the lower buckling cover are respectively sleeved on steps at the joints of the upper cylinder cover and the lower cylinder cover and the cylinder body, and the upper buckling cover and the lower buckling cover are installed together through a long bolt.
Furthermore, the upper bearing group comprises an upper screw bearing seat sleeved on the upper part of the screw, an upper bearing is arranged in the inner cavity of the upper screw bearing seat, the upper bearing is fixed in the upper screw bearing seat through an upper bearing cover and a lower bearing cover, a pore channel communicated with the inner cavity of the upper screw bearing seat is arranged on the side wall of the upper screw bearing seat, and an oil cup is arranged at the outer opening end of the pore channel; and a round nut used for fixing the upper screw rod bearing seat is arranged on the screw rod at the upper part of the upper screw rod bearing seat.
Further, the lower bearing group include screw rod bearing housing and bearing housing upper cover, the upper cover suit of bearing housing with the mesopore is on the screw rod, install the inner bearing below the upper cover of bearing housing and laminating on the screw rod of bearing housing upper cover, install lower bearing on the installation step of the bottom of screw rod, set up the support sleeve between lower bearing and installation step, install the round nut of fixed lower bearing on the screw rod of the below of lower bearing, open the oilhole that has the inner chamber intercommunication on the bearing housing, this oilhole becomes the T font and forms three hydraulic fluid port on the bearing housing, an hydraulic fluid port is opened at the inner chamber, an hydraulic fluid port is opened and is installed the steel ball bloated stopper in this hydraulic fluid port at the bearing housing lateral wall, an hydraulic fluid port is opened and is installed the second oil cup in the hydraulic fluid port bottom the bearing housing.
a balance pulley is fixedly arranged at each of two ends of the upper fixed beam, a balance cylinder is arranged in each vertical guide pillar, a piston of the balance cylinder is connected to one end of the rubber-coated steel wire rope, and the other end of the rubber-coated steel wire rope penetrates through the vertical guide pillar and is fixed at the end part of the upper beam after bypassing the balance pulley.
The utility model has the advantages that: the utility model adopts the servo motor to drive the T-shaped screw rod, the screw rod rotates to drive the nut to move up and down, and the high-speed movement of the opening and closing die is realized; the balance cylinder is utilized to solve the balance of the dead weight of the die and reduce the friction force between the T-shaped screw and the nut; the problem of small stroke and large force during die opening and closing is solved by utilizing four short-distance oil cylinders. This application through foretell structure, realized improving production efficiency, energy saving consumed's purpose: energy saving due to electric drivesolves the problem of high-speed movement of the die, the flow required by the hydraulic station is very small, and the motor power only needs the original powerThe production efficiency is improved, and the continuous production of one stream is realized. Because the position of the opening and closing die is determined by the servo motor, the control precision is higher, and the adjustment is rapid when the die is suitable for different die thicknesses. In this application, two kinds of drive modes of motor and hydraulic cylinder that adopt simultaneously.
Drawings
FIG. 1 is a schematic perspective view of a low-pressure casting machine using an electro-hydraulic hybrid mold opening and closing mechanism according to the present application;
FIG. 2 is a schematic front view of FIG. 1;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3
FIG. 4 is a schematic structural view of a spiral lifting cylinder;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is an enlarged view of FIG. 4 at B;
Fig. 7 is an enlarged view of fig. 4 at C.
The reference numbers are recorded as follows: 1-closed surface, 2-lower die, 3-upper die mounting panel, 4-upper fixed beam, 5-upper die, 6-spiral lifting cylinder, 6.1-screw, 6.2-lower bearing group, 6.2.1-screw bearing sleeve, 6.2.2-upper bearing cover, 6.2.3-inner bearing, 6.2.4-lower bearing, 6.2.5-supporting sleeve, 6.2.6-steel ball expansion plug, 6.2.7-second oil cup, 6.3-upper bearing group, 6.3.1-upper screw bearing seat, 6.3.2-upper bearing, 6.3.3-bearing cover, 6.3.4-oil cup, 6.4-up-down moving component, 6.4.1-nut, 6.4.2-piston, 6.4.3-nut retainer ring, 6.4.4-supporting sleeve, 6.4.5-cylinder cover, 6.4.6-cylinder body, 6.4.7-4656-buckle, 3929-4625-long bolt cover, 6.4.10-long bolt cover, 7-upright guide post, 8-synchronous bridge, 9-upper beam, 10-motor base, 11-ejector rod mechanism, 12-motor, 13-guiding device, 14-balance pulley.
Detailed Description
the principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
A low-pressure casting machine (see figures 1 and 2) adopting an electro-hydraulic hybrid mould opening and closing mechanism comprises a combining surface 1, vertical guide pillars 7 are arranged at four corners of the combining surface 1 provided with a lower mould 2, an upper fixed beam 4 is arranged above the vertical guide pillars 7, and the combining surface 1, the vertical guide pillars 7 and the upper fixed beam form a low-pressure casting machine mounting frame; a spiral lifting cylinder 6 is arranged on the inner side of each vertical guide post 7, and a guide device 13 is sleeved on the spiral lifting cylinder 6; the upper crossbeam 9 and the synchronous bridge 8 form an upper die framework, two ends of the upper crossbeam 9 are installed on a guide device 13, an upper die installation panel 3 is installed below the upper die framework, an upper die 5 is installed below the upper die installation panel 3, and an ejector rod mechanism 11 is installed above the upper die framework and between the upper crossbeam 9; the top installation electric drive mechanism of installation frame, electric drive mechanism including the motor 12 that has the brake, three T shape gear box, four right angle gear boxes and transfer line, three T shape gear box divide into a main T shape gear box and two vice T shape gear boxes, motor 12 passes through motor cabinet 10 and installs the middle part at last tie-beam, main T shape gear box is connected to motor 12's output, main T shape gear box passes through the vice T shape gear box of connecting rod connection both sides, vice T shape gear box passes through the connecting rod and connects both sides right angle gear box, the right angle gear box is located the four corners department at installation frame top, a spiral lift section of thick bamboo is connected to every right angle gear box.
on the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:
Further, the spiral lifting cylinder 6 (see fig. 3) comprises a screw 6.1, a lower bearing set 6.2 installed at the bottom end of the screw 6.1, the top end of the screw 6.1 penetrates through the upper bearing set 6.3, and an up-and-down moving assembly 6.4 is sleeved in the middle of the screw 6.1; the up-down moving assembly 6.4 (see fig. 6) comprises a piston 6.4.2, the inner cavity of which is provided with a nut 6.4.1, a nut 6.4.1 mounting step is arranged in the piston 6.4.2, the nut 6.4.1 is fixed in the piston 6.4.2 through a nut retainer ring 6.4.3 and a support sleeve 6.4.4, the outer side of the piston 6.4.2 is provided with a cylinder body consisting of an upper cylinder cover 6.4.5, a lower cylinder cover 6.4.5 and a cylinder body 6.4.6, the cylinder cover 6.4.5 is connected with the cylinder body 6.4.6 through bolts, a step is formed at the joint of the cylinder cover 6.4.5 and the cylinder body 6.4.6, a seal ring 6.4.7 is arranged between the cylinder cover 6.4.5 and the piston 6.4.2, a pipe joint 6.4.8 is arranged on the cylinder cover 6.4.5, and an O-shaped ring and a seal retainer ring are arranged between the cylinder body 6.4.6 and; the upper buckle cover 6.4.9 and the lower buckle cover 6.4.9 are respectively sleeved on the steps at the connection part of the upper cylinder cover 6.4.5 and the lower cylinder cover 6.4.6, and the upper buckle cover 6.4.9 and the lower buckle cover 6.4.9 are installed together through a long bolt 6.4.10.
further, the upper bearing set 6.3 (see fig. 7) includes an upper screw bearing seat 6.3.1 sleeved on the upper portion of the screw 6.1, an inner cavity of the upper screw bearing seat 6.3.1 is provided with an upper bearing 6.3.2, the upper bearing 6.3.2 is fixed in the upper screw bearing seat 6.3.1 by an upper bearing cover 6.3.3 and a lower bearing cover 6.3.3, a side wall of the upper screw bearing seat 6.3.1 is provided with a pore channel communicated with the inner cavity of the upper screw bearing seat 6.3.1, and an oil cup 6.3.4 is arranged at an outer opening end of the pore channel; and a round nut for fixing the upper screw bearing seat 6.3.1 is arranged on the screw 6.1 at the upper part of the upper screw bearing seat 6.3.1.
Further, the lower bearing set 6.2 (see fig. 5) includes a screw bearing sleeve 6.2.1 and a bearing sleeve upper cover 6.2.2, the bearing sleeve upper cover 6.2.2 with a middle hole is sleeved on the screw 6.1, an inner bearing 6.2.3 is installed below the bearing sleeve upper cover 6.2.2 and attached to the screw 6.1 of the bearing sleeve upper cover 6.2.2, a lower bearing 6.2.4 is installed on an installation step at the bottom of the screw 6.1, a support sleeve 6.2.5 is arranged between the lower bearing 6.2.4 and the installation step, a round nut for fixing the lower bearing 6.2.4 is installed on the screw 6.1 below the lower bearing 6.2.4, an oil hole with an inner cavity communicated is opened on the bearing sleeve 6.2.1, the oil hole is in a T shape and three oil ports are formed on the bearing sleeve 6.2.1, one oil port is opened in the inner cavity, one oil port is opened on the side wall of the bearing sleeve 6.2.1 and an oil expansion port is installed in the bearing sleeve 6.2.2.1, and an oil plug is installed on the bottom of the second bearing sleeve 6.2.2.
Two ends of each upper fixed beam 4 are fixedly provided with a balance pulley 14, each upright guide post 7 is internally provided with a balance cylinder, a piston of the balance cylinder is connected with one end of the rubber-coated steel wire rope, and the other end of the rubber-coated steel wire rope penetrates through the upright guide post 7 and is fixed at the end part of the upper beam after bypassing the balance pulley 14.
the balance cylinder is arranged inside the four square stand columns:
the inside of each square upright post is provided with a soft cable cylinder.
The diameter of a piston of the cylinder is 160mm, the soft rope adopts an encapsulated steel wire rope, the diameter of the encapsulated steel wire rope is 18mm, and the effective area of the piston is as follows: 198.42cm2。
When the pressure in the cylinder is 2-6kg/cm2In time, the cylinder in each column can produce: 396.8-1190.50 kg balance force.
The resultant force generated by the four cylinders is: 1587.2-4761.00 kg.
Wherein the weight of the movable mould plate is about 1500kg, and the weight of the upper mould of the mould is about 500 kg-2000 kg.
According to the mould gravity on different moulds, the pressure regulating release valve on the upper part of the upright post cylinder is adjusted, so that the effect of balancing the weight of the movable mould plate and the mould can be achieved.
The mounting and fixing means, which are not specifically described in the present application, are conventional bolt mounting and fixing means or mounting and fixing means such as welding.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The low-pressure casting machine adopting the electro-hydraulic hybrid mold opening and closing mechanism is characterized by comprising a combining surface (1), vertical guide pillars (7) are arranged at four corners of the combining surface (1) provided with a lower mold (2), an upper fixed beam (4) is arranged above the vertical guide pillars (7), and the combining surface (1), the vertical guide pillars (7) and the upper fixed beam (4) form a low-pressure casting machine mounting frame; a spiral lifting cylinder (6) is arranged on the inner side of each vertical guide post (7) in parallel with the vertical guide post (7), and a guide device (13) is sleeved on the spiral lifting cylinder (6); an upper cross beam (9) and a synchronous bridge (8) form an upper die framework, two ends of the upper cross beam (9) are installed on a guide device (13), an upper die installation panel (3) is installed below the upper die framework, an upper die (5) is installed below the upper die installation panel (3), and an ejector rod mechanism (11) is installed above the upper die framework and between the upper cross beams (9); the top installation electric drive mechanism of installation frame, electric drive mechanism including motor (12) that have the brake, three T shape gear box, four right angle gear boxes and transfer line, three T shape gear box divide into a main T shape gear box and two vice T shape gear boxes, motor (12) are installed at the middle part of last tie-beam through motor cabinet (10), the end of cominging in and going out of main T shape gear box is connected to the output of motor (12), the output of main T shape gear box both sides passes through the input of the vice T shape gear box of connecting rod connection both sides, the output of vice T shape gear box both sides passes through the input of connecting rod connection its both sides right angle gear box, the right angle gear box is located the four corners department at installation frame top, spiral lift section of thick bamboo (6) is connected to every right angle.
2. the low-pressure casting machine adopting the electro-hydraulic hybrid mold opening and closing mechanism as claimed in claim 1, wherein the spiral lifting cylinder (6) comprises a screw (6.1), a lower bearing set (6.2) installed at the bottom end of the screw (6.1), the top end of the screw (6.1) penetrates through an upper bearing set (6.3), and an up-and-down moving assembly (6.4) is sleeved in the middle of the screw (6.1); the up-down moving assembly (6.4) comprises a piston (6.4.2) with an inner cavity provided with a nut (6.4.1), a nut (6.4.1) mounting step is arranged in the piston (6.4.2), the nut (6.4.1) is fixed in the piston (6.4.2) through a nut retainer ring (6.4.3) and a support sleeve (6.4.4), the outer side of the piston (6.4.2) is provided with a cylinder body consisting of an upper cylinder cover (6.4.5), a lower cylinder cover (6.4.5) and a cylinder body (6.4.6), the cylinder cover (6.4.5) and the cylinder body (6.4.6) are connected through bolts, a step is formed at the joint of the cylinder cover (6.4.5) and the cylinder body (6.4.6), a seal ring (6.4.7) is arranged between the cylinder cover (6.4.5) and the piston (6.4.2), a pipe joint (6.4.8) is arranged on the cylinder cover (6.4.5), and a seal ring is arranged between the cylinder body (6.4.6) and the piston (6.4.2) and the retainer ring; the upper buckle cover and the lower buckle cover (6.4.9) are respectively sleeved on steps at the joint of the upper cylinder cover and the lower cylinder cover (6.4.5) and the cylinder body (6.4.6), and the upper buckle cover and the lower buckle cover (6.4.9) are installed together through a long bolt (6.4.10).
3. The low-pressure casting machine adopting the electro-hydraulic hybrid mold opening and closing mechanism as claimed in claim 2, wherein the upper bearing set (6.3) comprises an upper screw bearing seat (6.3.1) sleeved on the upper part of the screw (6.1), an upper bearing (6.3.2) is installed in the inner cavity of the upper screw bearing seat (6.3.1), the upper bearing (6.3.2) is fixed in the upper screw bearing seat (6.3.1) through an upper bearing cover and a lower bearing cover (6.3.3), a pore channel communicated with the inner cavity of the upper screw bearing seat (6.3.1) is arranged on the side wall of the upper screw bearing seat (6.3.1), and an oil cup (6.3.4) is installed at the outer opening end of the pore channel; a round nut used for fixing the upper screw bearing seat (6.3.1) is arranged on the screw (6.1) at the upper part of the upper screw bearing seat (6.3.1).
4. The low-pressure casting machine adopting the electro-hydraulic mixed-action mold opening and closing mechanism as claimed in claim 2, wherein the lower bearing set (6.2) comprises a screw bearing sleeve (6.2.1) and a bearing upper cover (6.2.2), the bearing upper cover (6.2.2) with a middle hole is sleeved on the screw (6.1), an inner bearing (6.2.3) is installed on the screw (6.1) which is under the bearing upper cover (6.2.2) and is attached to the bearing upper cover (6.2.2), a lower bearing (6.2.4) is installed on an installation step at the bottom of the screw (6.1), a support sleeve (6.2.5) is arranged between the lower bearing (6.2.4) and the installation step, a round nut for fixing the lower bearing (6.2.4) is installed on the screw (6.1) under the lower bearing (6.2.4), an oil hole with communicated with an inner cavity is formed on the bearing sleeve (6.2.1), an oil hole is sleeved on the T-shaped, and a steel ball is installed on the side wall of the bearing sleeve (6.2.1), and oil hole is formed on the inner cavity of the three oil hole (6.2.2.1) and the oil hole of the bearing sleeve (6.2.2) and the oil hole is plugged, an oil port is opened at the bottom of the bearing sleeve (6.2.1) and a second oil cup (6.2.7) is arranged in the oil port.
5. The low-pressure casting machine adopting the electro-hydraulic hybrid mold opening and closing mechanism as claimed in claim 1, wherein a balance pulley (14) is fixedly installed at each of the two ends of each upper fixed beam (4), a balance cylinder is installed in each vertical guide pillar (7), a piston of the balance cylinder is connected to one end of the rubber-coated steel wire rope, and the other end of the rubber-coated steel wire rope penetrates through the vertical guide pillar (7) and bypasses the balance pulley (14) to be fixed at the end of the upper beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355420.XU CN209773438U (en) | 2019-03-20 | 2019-03-20 | Low-pressure casting machine adopting electro-hydraulic hybrid mold opening and closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355420.XU CN209773438U (en) | 2019-03-20 | 2019-03-20 | Low-pressure casting machine adopting electro-hydraulic hybrid mold opening and closing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209773438U true CN209773438U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920355420.XU Active CN209773438U (en) | 2019-03-20 | 2019-03-20 | Low-pressure casting machine adopting electro-hydraulic hybrid mold opening and closing mechanism |
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| Country | Link |
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| CN (1) | CN209773438U (en) |
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2019
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