Universal on-line system for low-pressure casting mold

Abstract

The utility model discloses a low pressure casting mould general on-line system, including transfer trolley and guide rail subassembly, the guide rail subassembly includes first guide rail and second guide rail that splice, the first guide rail is detachably laid on the machine table, the second guide rail is located outside the machine table, transfer trolley includes wheel, landing leg, support bedplate, slewing bearing and rotary bedplate, the rotary table plate is supported by a rotary bearing and rotatably arranged on the supporting table plate, a plurality of positioning grooves which are annularly distributed along the rotary center of the rotary table plate are formed in the rotary table plate, positioning keys are detachably arranged in the middles of the positioning grooves, the width of the positioning keys is matched with that of the positioning grooves, and the upper ends of the positioning keys are higher than the rotary table plate for positioning the on-line mold; the on-line system guides the transfer trolley to carry out on-line molds through the spliced guide rail assembly, and the molds can be simply and conveniently transferred to the center of a machine table; the transfer trolley is simple in structure, high in practicability, easy to carry out centering and angle alignment operation, simple in overall system structure, low in improvement cost and capable of being matched with various machines, operation difficulty is reduced, and die changing efficiency and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting moulds, in particular to a universal online system for low-pressure casting moulds. Background Art

[0002] The same casting equipment needs to produce wheel products of various specifications. After the production reaches the shift, the aluminum alloy wheel mold needs to be replaced. During the mold changing process, the online wheel mold needs to be disassembled and taken offline, and the wheel mold and corresponding spare parts of the shift need to be prepared for hoisting. The entire mold changing process takes a certain amount of time. Since the upper mold to be replaced is located on the bottom end surface of the top plate of the casting equipment, and the casting machine has a certain height, the installation process requires the machine column installation position of the mold and the die-casting machine installation top plate to be aligned. The hoisting installation is more difficult and requires the cooperation of multiple people to complete. The installation process is time-consuming and labor-intensive. At the same time, there are two types of casting die-casting machines on the site, 90° and 45°. During the mold changing process, the relative angle between the mold and the upper template needs to be adjusted, which is difficult to operate and prone to improper installation. The online trolley in the existing technology only has a simple transportation function and cannot meet the online mold changing needs of the 90° casting die-casting machine. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a universal online system for low-pressure casting molds to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A universal online system for low-pressure casting molds includes a transfer car and a guide rail assembly. The guide rail assembly includes a first guide rail and a second guide rail that are seamlessly spliced ​​to form a continuous track. The first guide rail is detachably laid on the machine table of the die-casting machine and extends to just below the mounting top plate of the die-casting machine. The second guide rail is fixedly arranged outside the machine table. The transfer car slides onto the first guide rail from the second guide rail for online operation. The transfer car includes wheels, legs, a support table, a slewing bearing and a rotating table. The support table is horizontally mounted on the legs. The wheels at the bottom of the legs are guided and slid by the first guide rail and the second guide rail. The rotating table is supported by the slewing bearing and can be rotatably arranged on the support table. The online mold is arranged on the rotating table. A plurality of positioning grooves arranged circumferentially along the rotation center are provided on the rotating table. A positioning key is detachably arranged in the middle of the positioning groove. The width of the positioning key matches the positioning groove, and the positioning key is higher than the plane of the rotating table and connected to the online mold for locating the center of the online mold.

[0006] Furthermore, two guide rail limit blocks are arranged on the machine platform for positioning, one side of the guide rail limit block is a positioning surface, and the other side is a limit surface. The two positioning surfaces are respectively attached to the two sides of the first guide rail for limiting, and the limit surfaces cooperate with the side cylinders on the machine platform to position the guide rail limit block.

[0007] Furthermore, a rear wheel block plate is provided at the rear end of the second guide rail, and a front wheel block plate is provided on the first guide rail, both of which are used to block the wheels. When the wheels are blocked and stopped by the front wheel block plate, the rotation center of the rotating table is located directly below the installation center of the installation top plate.

[0008] Furthermore, the guide rail assembly also includes a guide rail base located directly below the second guide rail, and the guide rail base is at the same height as the bottom plate of the machine platform, so that the first guide rail and the second guide rail are located on the same horizontal plane.

[0009] Furthermore, a guide rail mounting plate is provided at the upper end of the guide rail base, and a T-shaped lifting hole is provided on the guide rail mounting plate.

[0010] Compared with the prior art, the universal online system for low-pressure casting molds of the utility model has the following beneficial effects:

[0011] The mold can be easily and conveniently transferred to the center of the machine by guiding the transfer vehicle with a spliced ​​guide rail assembly. The first guide rail laid on the machine can be quickly disassembled to improve the efficiency of mold change.

[0012] The transfer vehicle has a simple structure and strong practicality. The online mold is set on the rotating table and can be quickly positioned to the rotation center of the rotating table, which is convenient for online adjustment of different angles to install the online mold. Therefore, during the installation of the online mold, it is easy to manually perform centering and angle alignment operations, and a single operator can complete the online and installation of the mold;

[0013] The design structure of the online system is simple, the cost of additional modification is low, and it can be matched with a variety of different machines, reducing the difficulty of mold changing operations and improving the mold changing efficiency and installation reliability of low-pressure casting molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the online system of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the erection structure of the middle guide rail assembly;

[0016] Figure 3 for Figure 1 Top view of the rotating table.

[0017] In the figure: 1. transfer vehicle; 11. rotating table; 111. positioning groove; 12. supporting table; 13. slewing bearing; 14. outrigger; 15. wheel; 2. guide rail assembly; 21. first guide rail; 22. second guide rail; 23. guide rail base; 231. guide rail mounting plate; 232. lifting hole; 24. rear wheel plate; 25. front wheel plate; 3. side cylinder; 4. guide rail limit block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only the best embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] This embodiment provides a universal online system for low-pressure casting molds, which is based on the on-site die-casting casting machine for additional modification, does not change any die-casting casting machine structure, and is generally applicable to the mold change operation of various die-casting casting machines; Figure 1-Figure 3 As shown, the universal on-line system includes a transfer vehicle 1 and a guide rail assembly 2. In order not to affect and reduce the impact of mold change on production, the guide rail assembly 2 is composed of a first guide rail 21 and a second guide rail 22 that are seamlessly spliced ​​to form a continuous track. The second guide rail 22 is fixedly arranged outside the machine. The first guide rail 21 and the second guide rail 22 are both double-track guide rails. The adjacent end surfaces of the two are processed to form an L-shaped structure that is matched and spliced. After splicing, the connection between the two is strengthened by bolts. The first guide rail 21 is directly placed on the machine table of the die-casting machine and is quickly limited by the first guide rail 21. The other end extends to the bottom of the mounting top plate of the die-casting machine. Before production, the transfer vehicle 1 is unloaded to the second guide rail 22, and the first guide rail 21 is quickly disassembled, and the lower mold template is fixed to the machine table, and the side mold is fixed to the side cylinder, and the machine returns to normal production.

[0020] The transfer vehicle 1 slides from the second guide rail 22 outside the machine into the first guide rail 21 to put the mold on the line, or vice versa, to go off the line, such as Figure 1 As shown, the transfer vehicle 1 includes wheels 15, legs 14, a support plate 12, a slewing bearing 13 and a rotating plate 11. The support plate 12 is horizontally mounted on four legs 14. The wheels 15 at the bottom of the legs 14 cooperate with the first guide rail 21 and the second guide rail 22 of the double-track system and are guided to roll thereon. The inner and outer rings of the slewing bearing 13 can rotate relative to each other. The rotating plate 11 is fixedly connected to the upper end of the inner ring of the slewing bearing 13 and supported by the slewing bearing 13. The support plate 12 is fixedly connected to the lower end of the outer ring of the slewing bearing 13. Therefore, the rotating plate 11 remains horizontal and can rotate.

[0021] The on-line mold is hung on the rotating table 11 for on-line operation. In order to quickly locate the center of the on-line mold, the center of the on-line mold is made to coincide with the rotation center of the rotating table 11. Figure 3As shown, the rotating table 11 is provided with a plurality of circumferentially evenly arranged positioning grooves 111 along its rotation center, which can be positioned by utilizing the embedding groove at the bottom end of the upper line mold, or by positioning the outer peripheral surface of the upper line mold; for the upper line mold provided with the embedding groove, the positioning groove 111 can be fixed with a positioning key by means of screws, and in order to improve the positioning accuracy, the width of the positioning key is adapted to the width of the positioning groove 111, and the length of the positioning key is designed and selected according to the positioning needs, and the upper end of the positioning key extends out of the upper plane of the rotating table 11, and is inserted into the embedding groove on the upper line mold to achieve centering. For positioning, there are at least three positioning keys, and the inner end faces of the upper ends are in contact with the inner end faces of the grooves of the lower template of the upper mold, so as to jointly locate the center of the upper mold. When the outer peripheral surface of the upper mold is used for positioning the center, there should be at least three positioning grooves 111. Similarly, a positioning key is detachably provided in the middle of the positioning groove 111. The width of the positioning key is matched with the positioning groove 111. The length of the positioning key is selected according to the structural size of the upper mold. The upper end of the positioning key is higher than the plane of the rotating table 11, and the inner side face of the upper end is in contact with the outer peripheral surface of the upper mold, so as to jointly locate the center of the upper mold.

[0022] As a further technical solution, in order to further limit the first guide rail 21 along the width direction to prevent it from lateral movement, two guide rail limit blocks 4 are arranged and positioned on the machine table for quick removal. The guide rail limit blocks 4 flexibly use the side cylinders 3 on both sides of the machine table for positioning and limiting. Figure 2 As shown, one side surface of the guide rail limit block 4 is a positioning surface, which is in contact with the side surface of the first guide rail 21, and the other side surface of the guide rail limit block 4 is a limiting surface, which is processed into a V-shaped structure adapted to the corners of the side cylinder 3. The V-shaped structure on the limiting surface is clamped on the corners of the side cylinder 3, and the first guide rail 21 is stably positioned on the machine platform under the force of the guide rail limit block 4.

[0023] As a further technical solution, in order to prevent the transfer trolley from derailing, a rear end of the second guide rail 22 is provided with a rear wheel plate 24 for blocking the wheel 15 when going offline. The rear wheel plate 24 is fixed to the rear end of the second guide rail 22, or is integrally formed with the rear end of the second guide rail 22. A front wheel plate 25 for positioning the wheel 15 when going online is provided on the first guide rail 21. The rear wheel plate 24 and the front wheel plate 25 both protrude vertically from the track plane. When the wheel 15 is blocked and positioned by the front wheel plate 25, the rotation center of the rotating table 11 is located on the installation center line of the die-casting machine on which the machine column is installed. The die-casting machine descends vertically along the rotation center, which is convenient for quickly positioning the online mold.

[0024] As a further technical solution, in order to make the first guide rail 21 and the second guide rail 22 located on the same horizontal plane, they can be smoothly put on line by human push. The second guide rail 22 is installed on the guide rail base 23. The guide rail base 23 is at the same height as the bottom plate of the machine. After adjusting the position, the guide rail base 23 can be detachably connected to the ground. The upper end of the guide rail base 23 is a guide rail mounting plate 231 for mounting the second guide rail 22. When building or disassembling, the position of the guide rail base 23 needs to be hoisted and repeatedly adjusted. A T-shaped hoisting hole 232 is provided on the guide rail mounting plate 231, which cooperates with the straight-line hook to pass through the through hole and the bearing hole in the middle of the rotating table 11 and the support table 12, so as to synchronously hoist the transfer trolley and the guide rail base 23.

[0025] The directional words such as "upper", "lower", "end", "side", "front", and "back" mentioned in this article are based on Figure 1-Figure 3 The coordinates or orientations shown in the figure, or the upper line direction of the transfer vehicle described, are used for the purpose of further explanation. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation;

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the terms "on" and "inside" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal online system for low-pressure casting molds, characterized in that: The invention comprises a transfer vehicle and a guide rail assembly, wherein the guide rail assembly comprises a first guide rail and a second guide rail which are seamlessly spliced ​​to form a continuous track, the first guide rail can be detachably laid on the machine platform of the die-casting machine and extends to directly below the mounting top plate of the die-casting machine, the second guide rail is fixedly arranged outside the machine platform, the transfer vehicle slides onto the first guide rail by the second guide rail for online operation, the transfer vehicle comprises wheels, legs, a support table, a slewing bearing and a rotating table, the support table is horizontally mounted on the legs, the wheels at the bottom of the legs can be guided and slid by the first guide rail and the second guide rail, the rotating table is supported by the slewing bearing and can be rotatably arranged on the support table, the online operation mold is arranged on the rotating table, the rotating table is provided with a plurality of circumferentially arranged positioning grooves along its rotation center, a positioning key is detachably arranged in the middle of the positioning groove, the width of the positioning key is adapted to the positioning groove, and the upper end of the positioning key is higher than the plane on the rotating table and connected to the online operation mold, so as to locate the center of the online operation mold.

2. The universal low-pressure casting mold online system according to claim 1, characterized in that: There are two guide rail limit blocks arranged and positioned on the machine platform, one side of the guide rail limit block is a positioning surface, and the other side is a limit surface, the two positioning surfaces are respectively attached to the two sides of the first guide rail, and the limit surfaces cooperate with the side cylinders on the machine platform to position the guide rail limit block.

3. The universal low-pressure casting mold online system according to claim 2, characterized in that: A rear wheel block plate is provided at the rear end of the second guide rail, and a front wheel block plate is provided on the first guide rail, both of which are used to block the wheels. When the wheels are blocked and stopped by the front wheel block plate, the rotation center of the rotating table is located directly below the installation center of the mounting top plate.

4. The universal low-pressure casting mold online system according to claim 1, characterized in that: The guide rail assembly also includes a guide rail base located directly below the second guide rail, and the guide rail base is at the same height as the bottom plate of the machine platform, so that the first guide rail and the second guide rail are located on the same horizontal plane.

5. The universal low-pressure casting mold online system according to claim 4, characterized in that: A guide rail mounting plate is arranged on the upper end of the guide rail base, and a T-shaped lifting hole is arranged on the guide rail mounting plate.

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