Aluminum alloy swing arm integrated casting equipment

Abstract

The invention discloses aluminum alloy swing arm integrated casting equipment, and relates to the technical field of casting. Through the automatic die opening, closing and discharging integrated design, the aluminum alloy casting efficiency can be effectively improved, manual intervention is reduced, and the production period is shortened. And meanwhile, high-quality forming of the aluminum alloy swing arm is ensured by accurately controlling a mold gap, automatically cleaning an exhaust hole and accurately controlling the temperature and a heating system, and the defects in the casting process are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of casting, and specifically to an integrated casting device for aluminum alloy swing arms. Background Art

[0002] Currently, in traditional aluminum alloy casting equipment, the opening and closing of the mold and the unloading process mostly rely on manual or complex mechanical operations, lacking an automated integrated design. This design has the following obvious disadvantages: The opening and closing of the mold and the unloading of most existing equipment rely on manual operations or single mechanical controls, usually requiring manual intervention and adjustment, resulting in an extended casting cycle and reduced production efficiency. The exhaust holes are not thoroughly cleaned. Many traditional aluminum alloy casting equipment cannot completely clean the residual aluminum alloy material in the exhaust holes. Especially during multiple casting processes, the remaining aluminum alloy will affect the effect of the next casting, resulting in bubble defects on the surface or inside of the product. Summary of the Invention

[0003] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: An integrated casting device for aluminum alloy swing arms, including a support base, on which a bottom mold is rotatably and embeddedly installed. The top edge of the bottom mold is flush with the upper surface of the support base. A top mold is hermetically buckled on the bottom mold. A plurality of grooves for forming swing arms are arranged in a circular array between the opposite surfaces of the top mold and the bottom mold. A central boss is fixedly installed in the middle of the bottom mold. A casting channel is provided between the central boss and the bottom mold. The casting channel is communicated with the grooves for forming swing arms (a casting channel is also provided between the top mold and the bottom mold). Among them, the top mold is slidably sleeved on the central boss. An exhaust hole communicating with the inside of the grooves for forming swing arms is opened on the top mold. A chamfer is provided at the top end of the exhaust hole, and a drill bit is coaxially arranged above the exhaust hole. The drill bit can be inserted into the exhaust hole to remove the residual aluminum alloy material in the exhaust hole, facilitating the demolding of the swing arm.

[0004] Preferably, an injection pipe is coaxially and fixedly communicated with the central boss. The injection pipe is communicated with the casting channel. A top mold limiting disk is also fixedly installed on the central boss. The top mold limiting disk is fixedly sleeved on the injection pipe. Among them, the drill bit is rotatably installed on the top mold limiting disk. A drill material gear fixedly cooperating with the drill bit is rotatably installed on the upper surface of the top mold limiting disk. All the drill material gears are meshed and driven by a synchronous tooth ring.

[0005] Preferably, a drill material motor is also overhead and fixedly installed on the top mold limiting disk. The output shaft of the drill material motor is fixedly cooperated with the center of one of the drill material gears. A plurality of pressing slide rods are also slidably installed on the top mold limiting disk. All the pressing slide rods are fixed to the top mold.

[0006] Preferably, a downward pressure rack is fixedly installed at the top end of each downward pressure slide bar. A downward pressure gear is meshed and driven on the side of the downward pressure rack. The downward pressure gear is fixedly installed on the output shaft of the gearbox. The gearbox is fixedly installed on the top die limit disc through a gearbox bracket. The downward pressure rack is also slidably matched with the gearbox bracket. A downward pressure swing arm is fixedly installed on the input shaft of the gearbox.

[0007] Preferably, a downward pressure counterweight block is fixedly installed at one end of each downward pressure swing arm away from the gearbox. A downward pressure drive frame is slidably sleeved on the outer surface of the injection pipe. The downward pressure drive frame is movably connected with one end of each downward pressure swing arm close to the downward pressure counterweight block through a downward pressure linkage rod. A return spring is also sleeved around the injection pipe. The two ends of the return spring are fixedly matched with the downward pressure drive frame and the top die limit disc.

[0008] Preferably, an injection cylinder is rotatably and sealingly fitted at the top end of the injection pipe. Heating coils are embedded in both the injection cylinder and the injection pipe for keeping the molten casting raw materials warm. Heating wires are embedded in the bottom die and the top die for keeping the molten casting materials warm and increasing fluidity.

[0009] Preferably, the support seat is fixedly installed above the chassis in a suspended manner. A discharge turntable is also rotatably installed on the chassis. A plurality of dial rods are fixedly installed at the edge of the upper surface of the discharge turntable for easily dialing the discharge turntable to rotate on the chassis. A protective cover is also fixedly installed on the chassis. A material taking opening is formed at the bottom of the protective cover. The injection cylinder is fixedly installed at the top of the protective cover. Rubber pads are arranged on the inner walls of the discharge turntable and the protective cover.

[0010] Preferably, an outer ring gear disc is rotatably installed at the center position of the lower surface of the support seat. The outer ring gear disc is fixedly fitted with the bottom die through a rotating shaft. An outer ring is rotatably sleeved outside the outer ring gear disc, and the outer ring is fixedly fitted with the support seat. A planetary gear disc is also rotatably installed on the inner wall of the outer ring. A central gear is rotatably installed at the center of the planetary gear disc. The central gear and the outer ring gear disc are meshed and driven through planetary gears. The planetary gears are rotatably installed on the planetary gear disc. A drive motor bracket is also fixedly installed on the outer ring. A drive motor is fixedly installed on the drive motor bracket. The output shaft of the drive motor penetrates through the planetary gear disc and is fixedly fitted with the central gear. The output shaft of the drive motor is rotatably fitted with the planetary gear disc.

[0011] Preferably, an electromagnet chute is radially formed on the outer ring. An electromagnet is slidably arranged in the electromagnet chute. The electromagnet is frictionally and magnetically fitted with the circumferential surface of the planetary gear disc for restricting the rotation of the planetary gear disc in the outer ring.

[0012] The present invention has the following beneficial effects compared with the prior art: (1) By integrating the functions of automatic opening and discharging, the present invention eliminates the disadvantage of the separation of the mold and the discharging process in traditional equipment. The equipment uses a pressing device and a rotating device to cooperate to control the automatic opening and closing of the mold, and automatically completes the discharging of the aluminum alloy swing arm through a discharging turntable and a lever device. This integrated design greatly improves the production efficiency, reduces manual intervention, and shortens the casting cycle; (2) The drilling motor and drill bit device equipped in the present invention can automatically clean the aluminum alloy residues in the exhaust holes, avoiding the surface and internal defects of the castings caused by incomplete or missed manual cleaning. This automated design effectively ensures the cleanliness of each casting and improves the quality of the aluminum alloy swing arm. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure at the injection cylinder of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure at the reset spring of the present invention.

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at position A.

[0017] Figure 5 It is a schematic diagram of the structure at the electromagnet of the present invention.

[0018] Figure 6 It is a schematic diagram of the structure at the outer ring gear disc of the present invention.

[0019] Figure 7 It is a schematic diagram of the structure at the pressing slide rod of the present invention.

[0020] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at position B.

[0021] Figure 9 It is a schematic diagram of the structure at the central boss of the present invention.

[0022] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at position C.

[0023] In the figure: 101 - chassis; 102 - discharging turntable; 103 - support seat; 104 - injection cylinder; 105 - injection pipe; 106 - protective cover; 107 - material taking port; 108 - lever; 109 - planetary gear disc limiting ring frame; 110 - driving motor; 111 - driving motor support; 112 - planetary gear disc; 113 - central gear; 114 - planetary gear; 115 - outer ring tooth disc; 116 - bottom mold; 117 - top mold; 118 - top mold limit disc; 119 - downward pressing drive frame; 120 - downward pressing linkage rod; 121 - downward pressing counterweight; 122 - downward pressing swing arm; 123 - gearbox; 124 - downward pressing gear; 125 - gearbox support; 126 - downward pressing rack; 127 - return spring; 128 - downward pressing slide bar; 129 - synchronous gear ring; 130 - drilling material motor; 131 - drilling material gear; 132 - central boss; 133 - drill bit; 134 - exhaust hole; 135 - casting channel; 136 - electromagnet; 137 - electromagnet chute. Detailed implementation manners

[0024] The following combines with the attached Figure 1-10 drawings, and further illustrates the technical solution of the present invention through specific implementation manners.

[0025] The present invention provides an integrated casting device for aluminum alloy swing arms, including a support base 103, on which a bottom mold 116 is rotatably and embeddedly installed. The top edge of the bottom mold 116 is flush with the upper surface of the support base 103. A top mold 117 is hermetically buckled on the bottom mold 116. A plurality of grooves for forming swing arms are arranged in a circular array between the opposite surfaces of the top mold 117 and the bottom mold 116. A central boss 132 is fixedly installed in the middle of the bottom mold 116. A casting channel 135 is arranged between the central boss 132 and the bottom mold 116. The casting channel 135 is communicated with the grooves for forming swing arms (a casting channel 135 is also arranged between the top mold 117 and the bottom mold 116). The top mold 117 is slidably sleeved on the central boss 132. An exhaust hole 134 communicated with the inside of the grooves for forming swing arms is opened on the top mold 117. The top end of the exhaust hole 134 is provided with a chamfer, and a drill bit 133 is coaxially arranged above the exhaust hole 134. The drill bit 133 can be inserted into the exhaust hole 134 to remove the residual aluminum alloy material in the exhaust hole 134, facilitating the demolding of the swing arm. An injection pipe 105 is coaxially and fixedly communicated with the central boss 132. The injection pipe 105 is communicated with the casting channel 135. A top mold limiting disk 118 is also fixedly installed on the central boss 132. The top mold limiting disk 118 is fixedly sleeved on the injection pipe 105. The drill bit 133 is rotatably installed on the top mold limiting disk 118. A drill material gear 131 fixedly matched with the drill bit 133 is rotatably installed on the upper surface of the top mold limiting disk 118. All the drill material gears 131 are meshed and driven by a synchronous tooth ring 129. A drill material motor 130 is also overhead and fixedly installed on the top mold limiting disk 118. The output shaft of the drill material motor 130 is fixedly matched with the center of one of the drill material gears 131. A plurality of downward pressure sliding rods 128 are also slidably installed on the top mold limiting disk 118. All the downward pressure sliding rods 128 are fixed to the top mold 117. A downward pressure rack 126 is fixedly installed at the top end of each downward pressure sliding rod 128. A downward pressure gear 124 is meshed and driven on the side of the downward pressure rack 126. The downward pressure gear 124 is fixedly installed on the output shaft of a gearbox 123. The gearbox 123 is fixedly installed on the top mold limiting disk 118 through a gearbox support 125. The downward pressure rack 126 is also slidably matched with the gearbox support 125. A downward pressure swing arm 122 is fixedly installed on the input shaft of the gearbox 123. A downward pressure counterweight 121 is fixedly installed at one end of each downward pressure swing arm 122 away from the gearbox 123. A downward pressure driving frame 119 is slidably sleeved on the outer surface of the injection pipe 105. The downward pressure driving frame 119 is movably connected with one end of each downward pressure swing arm 122 close to the downward pressure counterweight 121 through a downward pressure linkage rod 120. A return spring 127 is also sleeved around the injection pipe 105. The two ends of the return spring 127 are fixedly matched with the downward pressure driving frame 119 and the top mold limiting disk 118.The top end of the injection pipe 105 is rotationally and sealingly fitted with an injection cylinder 104. Heating coils are embedded inside both the injection cylinder 104 and the injection pipe 105 to keep the molten casting raw materials warm. Heating wires are embedded inside the bottom mold 116 and the top mold 117 to keep the molten casting materials warm and increase their fluidity.

[0026] The support base 103 is fixedly installed on the chassis 101 in a suspended manner. A discharge turntable 102 is also rotatably installed on the chassis 101. A plurality of lever rods 108 are fixedly installed on the edge of the upper surface of the discharge turntable 102 to facilitate turning the discharge turntable 102 to rotate on the chassis 101. A protective cover 106 is also fixedly installed on the chassis 101. A material taking port 107 is opened at the bottom of the protective cover 106. The injection cylinder 104 is fixedly installed on the top of the protective cover 106. Rubber pads are arranged on the inner walls of the discharge turntable 102 and the protective cover 106. A ring gear 115 is rotatably installed at the central position of the lower surface of the support base 103. The ring gear 115 is fixedly fitted with the bottom mold 116 through a rotating shaft. An outer ring planetary gear disc limiting ring frame 109 fixedly fitted with the support base 103 is rotatably sleeved outside the ring gear 115. A planetary gear disc 112 is also rotatably installed on the inner wall of the outer ring planetary gear disc limiting ring frame 109. A central gear 113 is rotatably installed at the center position of the planetary gear disc 112. The central gear 113 and the ring gear 115 are meshed and driven through a planetary gear 114. The planetary gear 114 is rotatably installed on the planetary gear disc 112. A driving motor bracket 111 is also fixedly installed on the outer ring planetary gear disc limiting ring frame 109. A driving motor 110 is fixedly installed on the driving motor bracket 111. The output shaft of the driving motor 110 penetrates through the planetary gear disc 112 and is fixedly fitted with the central gear 113. The output shaft of the driving motor 110 is rotatably fitted with the planetary gear disc 112. An electromagnet chute 137 is radially opened on the outer ring planetary gear disc limiting ring frame 109. An electromagnet 136 is slidably arranged in the electromagnet chute 137. The electromagnet 136 is in frictional and magnetic cooperation with the circumferential surface of the planetary gear disc 112 to limit the rotation of the planetary gear disc 112 in the outer ring planetary gear disc limiting ring frame 109.

[0027] The working principle of an integrated casting equipment for aluminum alloy swing arms disclosed in the present invention is as follows: First, start the drive motor 110 and the electromagnet 136. The electromagnet 136 generates magnetic force and then approaches the planetary gear disc 112. A friction-fixed fit is formed between the electromagnet 136 and the planetary gear disc 112 to restrict the rotation of the planetary gear disc 112. The output shaft of the drive motor 110 drives the planetary gear 114 to rotate self-driven through the central gear 113. The planetary gear 114 drives the outer ring gear disc 115 to rotate, and the outer ring gear disc 115 drives the bottom mold 116, the central boss 132, the injection pipe 105, the top mold limiting disc 118, the downward pressure slide rod 128, and the return spring 127 to rotate, thereby driving the casting channel 135 and the groove for forming the swing arm to rotate. Pour the melted aluminum alloy raw material (in a fixed quantity) into the injection cylinder 104. The melted aluminum alloy raw material will enter the groove for forming the swing arm along the casting channel 135 under the action of centrifugal force. The gas in this process will be discharged through the exhaust holes 134. When the groove for forming the swing arm is filled with the melted aluminum alloy raw material, first turn off the heating wire and the heating coil (turn off the heat preservation), so that the whole cools slowly. Since the whole is in a rotating state, the heat dissipation speed of the whole is relatively fast (it is necessary to set the protective cover 106 to be open, such as a cage type; if it is a closed type, it can ensure temperature isolation, reduce the temperature of the external environment, and the environmental comfort is relatively high). After cooling, turn off the drive motor 110 and the electromagnet 136. When the electromagnet 136 is de-energized, it will lose the magnetic attraction to the planetary gear disc 112. At this time, the planetary gear disc 112 can rotate freely within the planetary gear disc limiting ring frame 109. Therefore, the planetary gear 114 can revolve. At this time, the bottom mold 116 (including the components above the bottom mold 116) will continue to rotate under the action of inertia. Since there is no longer the hindrance of the rotation of the drive motor 110, the rotation resistance will be reduced. The rotation speed of the bottom mold 116 gradually decreases. At this time, the centrifugal force received by the downward pressure counterweight 121 will decrease. The downward pressure counterweight 121 and the downward pressure swing arm 122 move closer inward under the pull of the downward pressure linkage rod 120. This is because under the action of the return spring 127, the downward pressure drive frame 119 is pushed upward, and then drives all the downward pressure linkage rods 120 to pull the downward pressure swing arm 122. The movement of the downward pressure swing arm 122 will drive the input shaft of the gearbox 123 to rotate. The output shaft of the gearbox 123 drives the downward pressure gear 124 to rotate. The downward pressure gear 124 drives the downward pressure rack 126 to move linearly, and then drives the downward pressure slide rod 128 to move synchronously. At this time, the downward pressure slide rod 128 will move upward, thereby pulling the top mold 117 away from the bottom mold 116 (open the mold).There will be a small amount of overflowing molten aluminum alloy raw material stored in the exhaust hole 134. At this time, before the exhaust hole 134 moves to the position of the drill bit 133, the drill feed motor 130 needs to be started. The output shaft of the drill feed motor 130 drives the drill feed gear 131 to rotate. The drill feed gear 131 drives all the drill feed gears 131 to rotate together through the synchronous tooth ring 129. The drill feed gear 131 drives the drill bit 133 to rotate and then drills into the exhaust hole 134 to remove the solidified molten aluminum alloy raw material in the exhaust hole 134. At this time, under the action of centrifugal force, the formed aluminum alloy swing arm will be thrown out (at a low speed) and then slide onto the unloading turntable 102 for collection. The user can take out the formed aluminum alloy swing arm from the material taking port 107. When casting again, first start the drive motor 110 and the electromagnet 136, and then rotate the downward pressing counterweight 121. The downward pressing counterweight 121 is subjected to an outward centrifugal force, which will drive the downward pressing swing arm 122 to swing outward, and then drive all the downward pressing slide rods 128 to move downward, so that the top mold 117 is buckled on the bottom mold 116. Then repeat the above steps.

Claims

1. An integrated casting equipment for aluminum alloy swing arms, characterized in that: It includes a support base (103), on which a bottom mold (116) is rotatably and embeddedly installed. The top edge of the bottom mold (116) is flush with the upper surface of the support base (103). A top mold (117) is hermetically buckled on the bottom mold (116). A plurality of grooves for forming the swing arm are arranged in a circular array between the opposite surfaces of the top mold (117) and the bottom mold (116). A central boss (132) is fixedly installed in the middle of the bottom mold (116). A casting channel (135) is arranged between the central boss (132) and the bottom mold (116). The casting channel (135) is communicated with the grooves for forming the swing arm. The top mold (117) is slidably sleeved on the central boss (132). An exhaust hole (134) communicated with the inside of the grooves for forming the swing arm is opened on the top mold (117). A chamfer is arranged at the top end of the exhaust hole (134). And a drill bit (133) is coaxially arranged above the exhaust hole (134). The drill bit (133) can be inserted into the exhaust hole (134) to remove the residual aluminum alloy material in the exhaust hole (134), facilitating the demolding of the swing arm.

2. An integrated casting equipment for aluminum alloy swing arms according to claim 1, characterized in that: An injection pipe (105) is coaxially and fixedly communicated on the central boss (132). The injection pipe (105) is communicated with the casting channel (135). A top mold limiting disk (118) is also fixedly installed on the central boss (132). The top mold limiting disk (118) is fixedly sleeved on the injection pipe (105). The drill bit (133) is rotatably installed on the top mold limiting disk (118). A drill material gear (131) fixedly matched with the drill bit (133) is rotatably installed on the upper surface of the top mold limiting disk (118). All the drill material gears (131) are meshed and driven through a synchronous gear ring (129).

3. An integrated casting device for an aluminum alloy swing arm according to claim 2, characterized in that: A drill material motor (130) is also overhead and fixedly installed on the top mold limiting disk (118). The output shaft of the drill material motor (130) is fixedly matched with the center of one of the drill material gears (131). A plurality of downward pressure sliding rods (128) are also slidably installed on the top mold limiting disk (118). All the downward pressure sliding rods (128) are fixed to the top mold (117).

4. An integrated casting device for an aluminum alloy swing arm according to claim 3, characterized in that: A downward pressure rack (126) is fixedly installed at the top end of each downward pressure sliding rod (128). A downward pressure gear (124) is meshed and driven on the side of the downward pressure rack (126). The downward pressure gear (124) is fixedly installed on the output shaft of a gearbox (123). The gearbox (123) is fixedly installed on the top mold limiting disk (118) through a gearbox support (125). The downward pressure rack (126) is also slidably matched with the gearbox support (125). A downward pressure swing arm (122) is fixedly installed on the input shaft of the gearbox (123).

5. An integrated casting device for an aluminum alloy swing arm according to claim 4, characterized in that: A pressing weight block (121) is fixedly installed at one end of each downward pressing swing arm (122) away from the transmission (123); a downward pressing driving frame (119) is slidably sleeved on the outer surface of the injection pipe (105), and the downward pressing driving frame (119) is movably connected to one end of each downward pressing swing arm (122) close to the pressing weight block (121) through a downward pressing linkage rod (120). A return spring (127) is also sleeved around the injection pipe (105), and both ends of the return spring (127) are fixedly fitted with the downward pressing driving frame (119) and the top die limiting disc (118).

6. The integrated casting equipment for an aluminum alloy swing arm according to claim 5, characterized in that: The top end of the injection pipe (105) is rotationally and sealingly fitted with an injection cylinder (104). Heating coils are embedded inside both the injection cylinder (104) and the injection pipe (105) for keeping the molten casting raw materials warm; heating wires are embedded inside the bottom die (116) and the top die (117) for keeping the molten casting materials warm and increasing fluidity.

7. An integrated casting equipment for aluminum alloy swing arms according to claim 6, characterized in that: The support base (103) is fixedly installed above the chassis (101). A discharge turntable (102) is also rotatably installed on the chassis (101). A plurality of toggle rods (108) are fixedly installed at the edge of the upper surface of the discharge turntable (102) to facilitate toggling the discharge turntable (102) to rotate on the chassis (101). A protective cover (106) is also fixedly installed on the chassis (101). A material taking port (107) is opened at the bottom of the protective cover (106), and the injection cylinder (104) is fixedly installed at the top of the protective cover (106); rubber pads are arranged on the inner walls of the discharge turntable (102) and the protective cover (106).

8. An integrated casting equipment for aluminum alloy swing arms according to claim 7, characterized in that: An outer ring gear disc (115) is rotatably installed at the central position of the lower surface of the support base (103). The outer ring gear disc (115) is fixedly fitted with the bottom die (116) through a rotating shaft. An outer ring planetary gear disc limiting ring frame (109) fixedly fitted with the support base (103) is rotatably sleeved outside the outer ring gear disc (115). A planetary gear disc (112) is also rotatably installed on the inner wall of the outer ring planetary gear disc limiting ring frame (109). A central gear (113) is rotatably installed at the center position of the planetary gear disc (112). The central gear (113) and the outer ring gear disc (115) are meshed and driven through a planetary gear (114). The planetary gear (114) is rotatably installed on the planetary gear disc (112). A driving motor bracket (111) is also fixedly installed on the outer ring planetary gear disc limiting ring frame (109). A driving motor (110) is fixedly installed on the driving motor bracket (111). The output shaft of the driving motor (110) penetrates through the planetary gear disc (112) and is fixedly fitted with the central gear (113). The output shaft of the driving motor (110) is rotatably fitted with the planetary gear disc (112).

9. An integrated casting device for aluminum alloy swing arms according to claim 8, characterized in that: An electromagnet chute (137) is radially formed on the outer ring planetary gear disc limiting ring frame (109). An electromagnet (136) is slidably arranged in the electromagnet chute (137). The electromagnet (136) is frictionally and magnetically fitted with the circumferential surface of the planetary gear disc (112) for restricting the rotation of the planetary gear disc (112) in the outer ring planetary gear disc limiting ring frame (109).

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