A tilting casting machine

Abstract

A tilting casting machine belongs to the technical field of casting equipment. The sliding mechanism of the present invention includes a servo motor, a screw rod, a nut, a striking plate, a bearing plate, a transmission gear and a transmission mechanism connected to the transmission gear. The servo motor is fixedly mounted on the frame, and the screw rod is connected to the lower half mold mounting seat assembly; the nut is mounted on the frame through a bearing support, the nut and the transmission gear are sleeved on the screw rod, the bearing plate is arranged on the nut, and the striking plate is arranged on the transmission gear. The striking plate and the bearing plate cooperate with the protrusion through a groove. The present invention drives the movable mold and the static mold to open and close by driving the screw rod axially through the nut, and respectively arranges striking devices on the nut and the transmission gear to provide a large torque at the moment of striking, thereby improving the starting force of the movable mold to open and close the mold, greatly improving the efficiency of mold casting, and reducing the strength of manual mold opening and closing.

Description

Technical Field

[0001] The invention belongs to the technical field of casting equipment, and in particular relates to an inclined casting machine. Background Art

[0002] Metal casting (such as aluminum casting) often uses two upper and lower half molds to set half mold cavities respectively. The two half molds are matched to form a complete mold cavity. However, many existing casting production companies still use manually driven mold opening and closing for casting. Manually driven mold opening and closing inevitably has the problems of high labor intensity and poor working environment. Especially at the moment of starting to open and close the mold, it takes a lot of energy to drive the dynamic mold to move. This working mode indirectly leads to poor product quality consistency. Summary of the invention

[0003] In view of the problems that the existing manually driven mold opening and closing inevitably has high labor intensity and poor working environment, the present invention aims to provide a tilting casting machine.

[0004] To this end, the present invention adopts the following technical scheme: an inclined casting machine, comprising a frame, an inclined driving mechanism, a mold opening and closing mechanism, and an upper mold and a lower mold that are matched to form an integral mold, the mold opening and closing mechanism comprising an upper mold mounting seat assembly and a lower mold mounting seat assembly, the upper mold is fixed to the frame through the upper mold mounting seat assembly, the lower mold is fixed to the sliding mechanism through the lower mold mounting seat assembly, and the frame is driven to rotate and tilt for casting through the inclined driving mechanism installed on a base below the frame;

[0005] Its characteristic is that the sliding mechanism includes a servo motor, a screw rod, a nut, a striking plate, a bearing plate, a transmission gear and a transmission mechanism connected to the transmission gear, the servo motor is fixedly mounted on the frame, the screw rod is connected to the lower half mold mounting seat assembly; the nut is mounted on the frame through a bearing support, the nut and the transmission gear are sleeved on the screw rod, the bearing plate is arranged on the nut, and the striking plate is arranged on the transmission gear; the striking plate and the bearing plate cooperate with the groove and the protrusion. When in use, the servo motor drives the transmission gear and the striking plate to rotate, the striking plate hits the bearing plate to drive the nut to rotate, and a high torque is formed when the striking plate hits, so as to realize the starting force of the screw rod to feed the mold.

[0006] As a supplement and improvement to the above technical solution, the present invention also includes the following technical features.

[0007] One end of the striking plate is fixedly installed in the shaft hole of the transmission gear and is fixedly connected by a screw passing through the striking plate and the end surface of the transmission gear, and at least one inwardly convex striking portion is provided on the striking plate; the receiving plate is fixedly installed on the nut, and one end of the nut has a step column, one end of the receiving plate is sleeved on the step column and is fixed by screws, and the outer periphery of the receiving plate is provided with a receiving portion that cooperates with the striking portion.

[0008] The lower mold mounting seat assembly is connected to the screw rod through a sleeve, the sleeve is sleeved on the tail of the screw rod, the outer peripheral surface of the sleeve is provided with at least one annularly distributed long slot through hole, a tooth block is provided in the long slot through hole, and the tail of the screw rod is provided with a plurality of annular gear rings that cooperate with the tooth block; by providing the tooth block, the tooth pattern of the sleeve and the screw rod is matched to achieve axial limitation of the lower mold mounting seat assembly; the tail of the sleeve and the tail of the screw rod are also provided with keyways, the tail of the sleeve and the tail of the screw rod are fixed by key fitting, and the radial limitation of the lower mold mounting seat assembly can be achieved by providing the key. By providing the tooth block and the key, the problem of easy breakage of the pin caused by the existing only setting of the pin and the simultaneous axial limitation and radial limitation is solved, and the assembly is easy.

[0009] A counterweight mechanism is provided on the frame near the upper mold mounting assembly, and the counterweight mechanism includes a counterweight box and a counterweight block. The counterweight block is arranged in the counterweight box according to weight requirements, so as to achieve counterweight balance on both sides of the frame and reduce the torque driven by the tilt drive mechanism.

[0010] The lower mold mounting seat assembly includes a lower mold mounting seat, a large ejector rod, a small ejector rod, a first ejector plate and a second ejector plate. The lower mold mounting seat is connected to the screw rod through the shaft sleeve. One end of the large ejector rod is fixed to the frame, and the other end is connected to the first ejector plate. The first ejector plate is arranged in a first groove formed by the inner side surface of the lower mold mounting seat. The second ejector plate is arranged in a second groove formed by the inner side surface of the lower mold mounting seat and is located at the outer side of the first ejector plate. One end of the small ejector rod is fixedly connected to the second ejector plate, and the other end of the ejector rod extends to the mold cavity of the lower mold to place the product. The first ejector plate is located in the first groove and the second ejector plate is located in the second groove, with a relative displacement gap. The lower mold mounting seat pushes against the first ejector plate and then pushes the second ejector plate, thereby improving the precision and quality of mold casting.

[0011] There are four large top rods, which are evenly arranged at the four corners of the first top plate.

[0012] The frame is supported and installed on the base through support shafts fixedly installed on both sides thereof, one of the support shafts is driven by the tilting drive mechanism, and the tilting drive mechanism drives a reduction motor, the front end of the motor shaft of the reduction motor has an axial hole for accommodating the support shaft, the outer periphery of the motor shaft is provided with a first radial hole penetrating the axial hole, the support shaft is provided with a second radial hole connected with the first radial hole, the first radial hole and the second radial hole are connected to form a mounting hole for mounting a pin shaft, and the diameter of the second radial hole is greater than The diameter of the first radial hole, the pin is installed in the mounting hole and supported by the hole wall of the first radial hole, one end of the pin has a flange whose outer diameter is larger than the outer diameter of the pin and is matched with the outer peripheral wall of the motor shaft to abut, the other end of the pin is provided with a blind hole perpendicular to the axis of the pin, a spring is arranged in the blind hole, a steel ball is arranged on the top of the spring, the steel ball is matched in the blind hole, the orifice diameter of the blind hole is smaller than the outer diameter of the steel ball, the two ends of the pin are axially limited by the flange and part of the external steel ball, and the orifice of the blind hole is formed by inserting the steel ball and then using the piercing machine to pierce.

[0013] The present invention can achieve the following beneficial effects: 1. The present invention drives the dynamic mold and the static mold to open and close by driving the screw rod to advance axially through the nut, and respectively arranges striking devices on the nut and the transmission tooth to provide a large torque at the moment of striking, thereby improving the starting force of the dynamic mold to open and close the mold, greatly improving the efficiency of mold casting, and reducing the strength of manual mold opening and closing. 2. During the pouring process, the mold drives the frame to rotate through the tilting drive mechanism, so that the casting port of the casting machine slowly tilts from a horizontal state until the pouring cavity is filled. The entire pouring process is smooth and the labor of workers is reduced. 3. The present invention solves the problem of easy breakage of the pin due to the axial limit and radial limit of the existing pins by arranging tooth blocks and keys, and the assembly is simpler and easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0017] Figure 4 for Figure 3 A partial enlarged schematic diagram of point a in the middle.

[0018] Figure 5 It is a schematic diagram of the matching installation structure of the motor shaft and the support shaft.

[0019] Figure 6 It is a schematic diagram of the assembly structure of the transmission gear and the striking plate.

[0020] Figure 7 It is a schematic diagram of the assembly structure of the nut and the bearing plate.

[0021] Figure 8 It is a schematic diagram of the matching assembly structure of the striking plate and the receiving plate.

[0022] Fig. 9 Schematic diagram of the lower mold mounting assembly.

[0023] Fig.10 It is a schematic diagram of the structure of the shaft sleeve.

[0024] Fig.11 It is a structural diagram of the screw rod. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-Figure 11 As shown, the present invention comprises a frame 1, a tilting drive mechanism 2, a mold opening and closing mechanism, and an upper mold and a lower mold 14 that are matched to form an integral mold. The mold opening and closing mechanism comprises an upper mold mounting seat assembly 4 and a lower mold mounting seat assembly 5. The upper mold is fixed to the frame 1 through the upper mold mounting seat assembly, and the lower mold 14 is fixed to the sliding mechanism through the lower mold mounting seat assembly 5. The frame 1 is driven to rotate and tilt for casting through the tilting drive mechanism 2 installed on the base 3 located below the frame 1; the sliding mechanism comprises a servo motor, a screw rod 6, and a nut 1 6. The striking plate 15, the bearing plate 17, the transmission gear 7 and the transmission mechanism connected to the transmission gear 7, the servo motor is fixedly mounted on the frame 1, the screw rod 6 is mounted on the frame 1 through the bearing support and connected to the lower half mold mounting seat assembly 5; the nut 16 is mounted on the frame 1 through the bearing support, the nut 16 and the transmission gear 7 are sleeved on the screw rod, the nut and the screw rod are threadedly connected, the bearing plate 17 is arranged on the nut 16, and the striking plate 15 is arranged on the transmission gear 7; the striking plate and the bearing plate are matched with the groove and the protrusion. When in use, the servo motor drives the transmission gear and the striking plate to rotate, and the striking plate hits the bearing plate to drive the nut to rotate, and a high torque is formed when the striking plate hits, so as to realize the opening and closing mold starting force of the screw rod feeding.

[0027] One end of the striking plate 15 is fixedly installed in the shaft hole of the transmission gear 7 and is fixedly connected by screws passing through the striking plate 15 and the end surface of the transmission gear. At least one inwardly convex striking portion 151 is provided on the striking plate 15; the bearing plate 17 is fixedly installed on the nut 16, and one end of the nut has a step column. One end of the bearing plate 17 is sleeved on the step column and is fixed by screws. The outer periphery of the bearing plate 17 is provided with a bearing portion 171 that cooperates with the striking portion 151.

[0028] The lower mold mounting seat assembly 5 is connected to the screw rod 6 through a sleeve 11. The sleeve 11 is sleeved on the tail of the screw rod 6. The outer peripheral surface of the sleeve 11 is provided with at least one annularly distributed long slot through hole 111. A tooth block 12 is provided in the long slot through hole 111. The tail of the screw rod 6 is provided with a plurality of annular gear rings 61 that cooperate with the tooth block 12. By providing the tooth block 12, the tooth pattern of the sleeve and the screw rod is matched to achieve axial limitation of the lower mold mounting seat assembly. The tail of the sleeve 11 and the tail of the screw rod 6 are also provided with a keyway 112. The tail of the sleeve 11 and the tail of the screw rod are fixed by key fitting. By providing the key, the radial limitation of the lower mold mounting seat assembly can be achieved. By providing the tooth block and the key, the problem of the easy breakage of the pin caused by the existing axial limitation and radial limitation of the pin only being provided is solved, and the assembly is easy.

[0029] The frame 1 near the upper mold mounting assembly 4 is provided with a counterweight mechanism 9, which includes a counterweight box 91 and a counterweight block 92. The counterweight block is arranged in the counterweight box according to weight requirements, so as to achieve counterweight balance on both sides of the frame and reduce the torque driven by the tilting drive mechanism.

[0030] The lower mold mounting seat assembly 5 includes a lower mold mounting seat 51, a large ejector rod 8, a small ejector rod 53, a first ejector plate 54 and a second ejector plate 52. The lower mold mounting seat 51 is connected to the screw rod 6 through a sleeve 11. One end of the large ejector rod 8 is fixed to the frame 1, and the other end is connected to the first ejector plate 54. The first ejector plate 54 is arranged in a first groove 55 formed on the inner side of the lower mold mounting seat 51. The second ejector plate 52 is arranged in a second groove 56 formed on the inner side of the lower mold mounting seat 51 and is located on the outer side of the first ejector plate 54. One end of the small ejector rod 53 is fixedly connected to the second ejector plate 52, and the other end of the ejector rod 53 extends to the mold cavity of the lower mold 14 to place the product on top. The first ejector plate 54 is located in the first groove 55 and the second ejector plate 52 is located in the second groove 56, with a relative displacement gap. The lower mold mounting seat presses against the first ejector plate and then pushes the second ejector plate, thereby improving the precision and quality of mold casting.

[0031] The frame 1 is supported and mounted on the base 3 by support shafts 10 fixedly mounted on both sides thereof, one of which is driven by the tilting driving mechanism 2 .

[0032] Preferably, the tilt drive mechanism 2 drives a reduction motor, the front end of the motor shaft 21 of the reduction motor has a shaft hole for accommodating the support shaft 10, the outer periphery of the motor shaft 21 is provided with a first radial hole 211 that penetrates the shaft hole, the support shaft 10 is provided with a second radial hole 101 that communicates with the first radial hole 211, the first radial hole 211 and the second radial hole 101 are connected to form a mounting hole for mounting a pin shaft, the diameter of the second radial hole 101 is larger than the diameter of the first radial hole 211, the pin shaft 13 is inserted into the mounting hole and matches the hole wall of the first radial hole 211 The pin 13 is supported together, one end of the pin shaft 13 has a flange whose outer diameter is larger than the outer diameter of the pin shaft and cooperates with the outer peripheral wall of the motor shaft 21 to abut against, the other end of the pin shaft 13 is provided with a blind hole 131 perpendicular to the axis of the pin shaft, a spring 132 is arranged in the blind hole, a steel ball 133 is arranged on the top of the spring 132, the steel ball 133 is cooperated in the blind hole, the orifice diameter of the blind hole 131 is smaller than the outer diameter of the steel ball 133, the two ends of the pin shaft 13 are axially limited by the flange and part of the external steel balls, and the orifice of the blind hole 131 is formed by inserting the steel ball 133 and then using a piercing machine to pierce.

Claims

1. A tilting casting machine, comprising a frame (1), a tilting drive mechanism (2), a mold opening and closing mechanism, and an upper mold and a lower mold (14) which are matched to form an integral mold, the mold opening and closing mechanism comprising an upper mold mounting seat assembly (4) and a lower mold mounting seat assembly (5), the upper mold being fixed to the frame (1) by the upper mold mounting seat assembly, the lower mold (14) being fixed to the sliding mechanism by the lower mold mounting seat assembly (5), the frame (1) being driven to rotate and tilt for casting by the tilting drive mechanism (2) mounted on a base (3) located below the frame (1); Features: The sliding mechanism comprises a servo motor, a screw rod (6), a nut (16), a striking plate (15), a bearing plate (17), a transmission gear (7) and a transmission mechanism connected to the transmission gear (7); the servo motor is fixedly mounted on the frame (1); the screw rod (6) is connected to the lower half mold mounting seat assembly (5); the nut (16) is mounted on the frame (1) through a bearing support; the nut (16) and the transmission gear (7) are sleeved on the screw rod; the bearing plate (17) is arranged on the nut (16); and the striking plate (15) is arranged on the transmission gear (7); the striking plate and the bearing plate cooperate with each other through a groove and a protrusion; One end of the striking plate (15) is fixedly installed in the shaft hole of the transmission gear (7) and is fixedly connected by a screw passing through the striking plate (15) and the end surface of the transmission gear, and at least one inwardly convex striking portion (151) is provided on the striking plate (15); the receiving plate (17) is fixedly installed on the nut (16), and one end of the nut has a step column, and one end of the receiving plate (17) is sleeved on the step column and fixed by screws, and the outer periphery of the receiving plate (17) is provided with a receiving portion (171) that cooperates with the striking portion (151); The lower half mold mounting seat assembly (5) is connected to the screw rod (6) through a shaft sleeve (11); the shaft sleeve (11) is sleeved on the tail of the screw rod (6); the outer peripheral surface of the shaft sleeve (11) is provided with at least one annularly distributed long slot through hole (111); a tooth block (12) is provided in the long slot through hole (111); the tail of the screw rod (6) is provided with a plurality of annular gear rings (61) that cooperate with the tooth block (12); the tail of the shaft sleeve (11) and the tail of the screw rod (6) are also provided with a keyway (112); the tail of the shaft sleeve (11) and the tail of the screw rod (6) are fixed by key fit.

2. The tilting casting machine according to claim 1, characterized in that: A counterweight mechanism (9) is provided on the frame (1) near the upper half mold mounting seat assembly (4), and the counterweight mechanism (9) includes a counterweight box (91) and a counterweight block (92).

3. The inclined casting machine according to claim 2, characterized in that: The lower mold mounting seat assembly (5) comprises a lower mold mounting seat (51), a large push rod (8), a small push rod (53), a first top plate (54) and a second top plate (52); the lower mold mounting seat (51) is connected to the screw rod (6) via the shaft sleeve (11); one end of the large push rod (8) is fixed to the frame (1), and the other end is connected to the first top plate (54); the first top plate (54) cooperates with the first groove cavity (54) formed on the inner side surface of the lower mold mounting seat (51) 55), the second top plate (52) is cooperatively arranged in the second groove cavity (56) formed on the inner side surface of the lower half mold mounting seat (51) and is located on the outer side of the first top plate (54), one end of the small top rod (53) is fixedly connected to the second top plate (52), and the end of the other end extends to the mold cavity of the lower half mold (14) to top the product; the first top plate (54) is located in the first groove cavity (55) and the second top plate (52) is located in the second groove cavity (56) with a relative displacement gap.

4. The inclined casting machine according to claim 1 or 3, characterized in that: The frame (1) is supported and mounted on the base (3) via support shafts (10) fixedly mounted on both sides thereof, and one of the support shafts is driven by the tilting drive mechanism (2).

5. The inclined casting machine according to claim 4, characterized in that: The tilt drive mechanism (2) comprises a reduction motor, the front end of the motor shaft (21) of the reduction motor has an axial hole for accommodating the support shaft (10), the outer periphery of the motor shaft (21) is provided with a first radial hole (211) penetrating the axial hole, the support shaft (10) is provided with a second radial hole (101) communicating with the first radial hole (211), the first radial hole (211) and the second radial hole (101) are communicated to form a mounting hole for mounting a pin shaft, the diameter of the second radial hole (101) is larger than the diameter of the first radial hole (211), the pin shaft (13) is inserted into the mounting hole and connected to the first radial hole (211). The pin (13) is supported by the hole wall, one end of the pin shaft (13) has a flange whose outer diameter is larger than the outer diameter of the pin shaft and is matched with the outer peripheral wall of the motor shaft (21) to abut against the pin shaft axis, the other end of the pin shaft (13) is provided with a blind hole (131) perpendicular to the pin shaft axis, a spring (132) is arranged in the blind hole, a steel ball (133) is arranged on the top of the spring (132), the steel ball (133) is matched and arranged in the blind hole, the aperture diameter of the blind hole (131) is smaller than the outer diameter of the steel ball (133), the two ends of the pin shaft (13) are axially limited by the flange and part of the external steel ball, and the aperture of the blind hole (131) is formed by inserting the steel ball (133) and then using a piercing machine to pierce.

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