A multi-size automobile wheel hub casting device

Abstract

The present invention discloses a multi-size automobile wheel hub casting device, which belongs to the technical field of wheel hub casting, and includes an operating device, which is used for casting the wheel hub. The operating device is provided with a side mold device, a knocking device and an ejection device. The side mold device is used for assisting the wheel hub casting, the knocking device is used for knocking the side mold to discharge the bubbles in the mold during casting, and the ejection device is used to eject the automobile wheel hub after casting. The knocking device provided in the present invention can realize knocking at a continuously changing position after and during casting, can effectively discharge the bubbles in the mold, improve the processing quality of the wheel hub, and facilitate subsequent demolding; the ejection device can eject the wheel hub after the casting process is completed, and at the same time cooperate with the rise of the upper mold and the outward movement of the side mold, so that demolding is easier; the operating device realizes the organic combination of multiple actions through a power source, and has a high degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub casting, in particular to a multi-size automobile wheel hub casting device. Background Art

[0002] The automobile wheel hub is an important component that connects the wheel and the automobile bearing. It directly supports the wheel and transmits the weight and power of the vehicle. The wheel hub not only plays an important role in ensuring the safe driving of the vehicle, but also has an important impact on the appearance and performance of the car. Wheel hub casting is a common process for manufacturing automobile wheel hubs. It manufactures the wheel hub by injecting molten metal into the wheel hub mold and cooling and solidifying it. The casting of the wheel hub is usually to pour the molten metal into the wheel hub mold to fill the entire mold cavity. The wheel hub casting mold in the prior art is usually divided into only two upper and lower molds, which makes demolding difficult. At the same time, demolding after casting usually requires manual work. In addition, if bubbles appear during the casting process of the automobile wheel hub, it may affect the quality of the wheel hub after casting. The bubbles can be discharged by continuously knocking the mold during the casting process. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a multi-size automobile wheel hub casting device, including an operating device, the operating device includes a surface plate, a bottom box is fixedly installed on the surface plate, the operating device is used to cast the wheel hub, the operating device is provided with a side mold device, a knocking device and an ejection device, the side mold device includes a side electric cylinder, the side electric cylinder is fixedly installed on the surface plate, the side mold device is used to assist the wheel hub casting, the knocking device includes a rotating column, a bottom transmission wheel is fixedly installed on the rotating column, the rotating column is rotatably installed on the bottom box, the knocking device is used to knock the side mold to discharge the bubbles in the mold during casting, the ejection device includes an ejection column slidably installed on the surface plate, and the ejection device is used to eject the automobile wheel hub after casting.

[0004] Furthermore, the operating device includes an internal motor fixedly mounted on the base box, a motor bevel gear is fixedly mounted on the motor shaft of the internal motor, a lifting screw is rotatably mounted on the base box, a bottom bevel gear is fixedly mounted on the lifting screw, the bottom bevel gear is meshed with the motor bevel gear, an outer guide cylinder is fixedly mounted on the surface plate, a lower mold is fixedly mounted on the surface plate, an upper mold mechanism is arranged on the outer guide cylinder, and a transmission mechanism is arranged on the base box.

[0005] Furthermore, the upper mold mechanism includes a rising column slidably mounted on the outer guide cylinder, an adjusting knob is installed on the rising column through threaded rotation, the rising column and the surface plate are slidably mounted, the upper mold is fixedly mounted on the rising column, a downward pressure spring is arranged between the upper mold and the surface plate, a sealing ring is arranged on the upper mold, and an upward lifting mechanism is arranged on the rising column.

[0006] Furthermore, the lifting mechanism includes a lifting frame slidably installed on the rising column, an internal threaded sleeve is fixedly installed on the lifting frame, the internal threaded sleeve and the lifting screw rod form a threaded transmission, a connecting block is fixedly installed on the lifting frame, an upper rotating block is rotatably installed on the connecting block, an inner retracting block is slidably installed in the upper rotating block, and a strong spring is arranged between the inner retracting block and the upper rotating block.

[0007] Furthermore, the transmission mechanism includes a vertical frame fixedly mounted on the base box, a vertical shaft rotatably mounted on the vertical frame, a transmission wheel and an upper bevel gear fixedly mounted on the vertical shaft, a transmission belt wrapped around the transmission wheel and the bottom transmission wheel, a bevel gear rotatably mounted on the vertical frame, a docking gear fixedly mounted on the bevel gear, the bevel gear meshes with the upper bevel gear, and a descending rack fixedly mounted on the lifting frame, the descending rack meshes with the docking gear.

[0008] By turning the adjusting knob, the height of the adjusting knob relative to the rising column can be adjusted to adapt to the processing of wheels of different heights, and the lower mold, the upper mold and the side mold can be replaced at the same time.

[0009] In the initial state, the downward pressure spring presses the upper mold against the side mold, and the side mold is in a retracted state. The sealing ring cooperates with the sealing groove to ensure sealing. Casting is carried out into the upper mold through the casting hole on the upper mold. The rotation of the internal motor drives the motor bevel gear to rotate, thereby driving the bottom bevel gear and the lifting screw to rotate, thereby driving the internal threaded sleeve and the lifting frame to descend. The descent of the lifting frame drives the descending rack to descend. When the descending rack contacts the docking gear, the descending rack drives the docking gear to rotate, thereby driving the bevel gear to rotate, thereby driving the upper bevel gear and the vertical shaft to rotate, thereby driving the transmission wheel to rotate, thereby driving the bottom transmission wheel to rotate through the transmission belt, and knocking on the surface of the side mold to discharge the bubbles in the mold during casting, and then demolding with the subsequent demolding.

[0010] After the casting is completed and cooled for a period of time, the internal motor rotates to drive the motor bevel gear to rotate, thereby driving the bottom bevel gear and the lifting screw to rotate, thereby driving the internal threaded sleeve and the lifting frame to rise, thereby driving the rising column to rise through the adjustment torque, thereby driving the upper mold to rise, and the downward pressure spring is stretched. After the upper mold rises a certain distance, the connecting block begins to contact the ejector rod.

[0011] The side mold device includes a slide rail fixedly installed on the surface plate, a side mold is slidably installed on the slide rail, the side mold is fixedly installed on the top of the side electric cylinder, a sealing groove is provided on the side mold, a rack plate is fixedly installed on the side mold, a docking rack is fixedly installed on the rack plate, a transfer gear is rotatably installed on the surface plate, and the transfer gear is meshed with the docking rack.

[0012] When casting is completed, the side electric cylinder contracts and drives the side mold to slide outward along the slide rail, so that the side mold is separated from the cast wheel hub. The side mold slides outward and drives the docking rack to slide, thereby driving the transfer gear to rotate, thereby driving the other side mold to slide outward synchronously. Before the next casting operation, the side electric cylinder extends and drives the two side molds to fit back to the initial position.

[0013] Furthermore, the knocking device includes a screw shaft fixedly installed on the rotating column, a lifting rod is slidably installed on the surface plate, an inner lifting frame is fixedly installed on the lifting rod, the inner lifting frame and the screw shaft form a threaded transmission, an outer groove rotating shaft is rotatably installed on the inner lifting frame, an outer transmission wheel is slidably installed on the outer groove rotating shaft, the outer transmission wheel is rotatably installed with the surface plate, an inner transmission wheel is fixedly installed on the screw shaft, the inner transmission wheel is rotatably installed with the surface plate, a triangular transmission belt is wrapped around the outer transmission wheel and the inner transmission wheel, a limiting frame is fixedly installed on the rotating column, a lifting sleeve is fixedly installed on the lifting rod, the lifting sleeve slides in the limiting frame, and a reciprocating mechanism is arranged on the surface plate.

[0014] Furthermore, the reciprocating mechanism includes a connecting frame fixedly mounted on the surface plate, the outer groove rotating shaft can slide and rotate in the connecting frame, a rotating connecting rod is fixedly mounted on the outer groove rotating shaft, a rotating rod is rotatably mounted on the rotating connecting rod, a knocking rod is rotatably mounted on the rotating rod, and the knocking rod slides in the lifting sleeve.

[0015] The rotation of the bottom transmission wheel drives the rotating column and the screw shaft to rotate, thereby driving the inner transmission wheel to rotate, thereby driving the outer transmission wheel to rotate through the triangular transmission belt, thereby driving the outer groove rotating shaft to rotate, thereby driving the rotating connecting rod to rotate, thereby driving the rotating rod to rotate, and driving the knocking rod to continuously slide back and forth in the lifting sleeve, and repeatedly knocking on the surface of the opposite side of the mold through the knocking rod. At the same time, the rotation of the screw shaft will drive the inner lifting frame to rise and fall, and the lifting of the inner lifting frame will drive the outer groove rotating shaft and the lifting rod to rise and fall, and the outer groove rotating shaft slides with the outer transmission wheel, and the lifting rod drives the lifting sleeve to slide in the limit frame, thereby realizing the continuous lifting and knocking of the opposite side of the mold by the knocking rod.

[0016] Furthermore, the ejection device comprises an ejection ring fixedly mounted on the ejection column, an ejection rod is fixedly mounted on the ejection column, and an ejection spring is arranged between the ejection rod and the surface plate.

[0017] When the lifting frame rises along the rising column, after the upper mold moves upward for a short distance, the retracted block begins to contact the ejector rod. As the lifting frame continues to rise, the ejector rod is driven up by the retracted block. The elastic force of the strong spring is greater than the elastic force of the ejector spring, thereby driving the ejector column and the ejector ring to rise. The cast wheel hub is pushed upward by the ejector ring, and the ejector spring is compressed. When the ejector ring contacts the surface plate, the ejector ring just pushes the wheel hub out of the lower mold, and the wheel hub is taken out. At this time, if the lifting frame has not risen to the highest point, the retracted block continues to rise and cannot drive the ejector rod to rise. At this time, the retracted block slides toward the upper rotating block through the slope, and the strong spring will be compressed. When the retracted block passes through the ejector column and reaches above the ejector column, the ejector spring will rebound, driving the ejector ring and the ejector rod to reset. Then the internal motor reverses, driving the upper mold back to the initial position, and the side mold returns to its position to prepare for the next casting operation. When the retracted block moves downward and contacts the ejector rod, the ejector rod drives the strong spring to rotate relative to the connecting block. The strong spring and the connecting block will pass through the ejector rod to the bottom of the ejector rod and return to the initial position, ready to continue the casting operation downward and knock the side mold.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) The knocking device provided in the present invention can continuously knock on the mold after and during casting, and can knock at a continuously changing position, which can effectively discharge bubbles in the mold, improve the processing quality of the wheel hub, and facilitate subsequent demolding; (2) The ejection device provided in the present invention can eject the wheel hub after the casting process is completed, and at the same time, cooperate with the rising of the upper mold and the outward movement of the side mold to make demolding easier; (3) The operating device provided in the present invention drives the upper mold mechanism, the ejection device and the knocking device to move, and realizes the organic combination of multiple actions through one power source, with a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0021] Figure 3 The structure of the working device of the present invention is shown in FIG. Figure 1 .

[0022] Figure 4 The structure of the working device of the present invention is shown in FIG. Figure 2 .

[0023] Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of point A in the middle.

[0024] Figure 6The structure of the working device of the present invention is shown in FIG. Figure 3 .

[0025] Figure 7 The structure of the working device of the present invention is shown in FIG. Figure 4 .

[0026] Figure 8 The side mold device structure of the present invention is schematically shown in FIG. Figure 1 .

[0027] Fig. 9 The side mold device structure of the present invention is shown in FIG. Figure 2 .

[0028] Fig.10 The structure of the striking device of the present invention is shown in FIG. Figure 1 .

[0029] Fig.11 The structure of the striking device of the present invention is shown in FIG. Figure 2 .

[0030] Fig.12 It is a schematic diagram of the structure of the ejection device of the present invention.

[0031] Figure numerals: 101-table plate; 102-bottom box; 103-internal motor; 104-motor bevel gear; 105-bottom bevel gear; 106-lifting screw; 107-downward pressure spring; 108-upper mold; 109-rising column; 110-adjusting knob; 111-lifting frame; 112-internal thread sleeve; 113-connecting block; 114-upper rotating block; 115-strong spring; 116-retracting block; 117-descending rack; 118-vertical frame; 119-docking gear; 120-bevel gear; 121-upper bevel gear; 122-vertical shaft; 123-transmission wheel; 124-transmission belt; 125-sealing ring; 126-outer guide cylinder; 127-lower Mould; 201-side electric cylinder; 202-side mould; 203-rack plate; 204-slide rail; 205-sealing groove; 206-jointing rack; 207-transfer gear; 301-rotating column; 302-bottom transmission wheel; 303-inner lifting frame; 304-outer groove rotating shaft; 305-outer transmission wheel; 306-triangular transmission belt; 307-screw shaft; 308-inner transmission wheel; 309-limiting frame; 310-lifting rod; 311-lifting sliding sleeve; 312-knocking rod; 313-rotating rod; 314-rotating connecting rod; 315-connecting frame; 401-ejection ring; 402-ejection column; 403-ejection spring; 404-ejection rod; 405-top ring. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Example: Reference Figure 1-Figure 12A multi-size automobile wheel hub casting device includes an operating device, the operating device includes a surface plate 101, a bottom box 102 is fixedly installed on the surface plate 101, the operating device is used to cast the wheel hub, and a side mold device, a knocking device and an ejection device are provided on the operating device. The side mold device includes a side electric cylinder 201, the side electric cylinder 201 is fixedly installed on the surface plate 101, the side mold device is used to assist the wheel hub casting, the knocking device includes a rotating column 301, a bottom transmission wheel 302 is fixedly installed on the rotating column 301, the rotating column 301 is rotatably installed on the bottom box 102, the knocking device is used to knock the side mold to discharge bubbles in the mold during casting, the ejection device includes an ejection column 402 slidably installed on the surface plate 101, and the ejection device is used to eject the automobile wheel hub after casting.

[0034] like Figure 1-Figure 7 As shown, the operating device includes an internal motor 103 fixedly mounted on a base box 102, a motor bevel gear 104 fixedly mounted on the motor shaft of the internal motor 103, a lifting screw 106 rotatably mounted on the base box 102, a bottom bevel gear 105 fixedly mounted on the lifting screw 106, the bottom bevel gear 105 meshes with the motor bevel gear 104, an outer guide cylinder 126 fixedly mounted on the surface plate 101, a lower mold 127 fixedly mounted on the surface plate 101, an upper mold mechanism is arranged on the outer guide cylinder 126, and a transmission mechanism is arranged on the base box 102.

[0035] like Figure 3-Figure 7 As shown, the upper mold mechanism includes a rising column 109 slidably mounted on an outer guide cylinder 126, an adjusting knob 110 is rotatably mounted on the rising column 109, the rising column 109 is slidably mounted with a surface plate 101, an upper mold 108 is fixedly mounted on the rising column 109, a downward pressure spring 107 is arranged between the upper mold 108 and the surface plate 101, a sealing ring 125 is arranged on the upper mold 108, and an upward lifting mechanism is arranged on the rising column 109.

[0036] like Figure 3-Figure 7 As shown, the lifting mechanism includes a lifting frame 111 slidably mounted on the rising column 109, an internal threaded sleeve 112 is fixedly mounted on the lifting frame 111, the internal threaded sleeve 112 and the lifting screw rod 106 form a threaded transmission, a connecting block 113 is fixedly mounted on the lifting frame 111, an upper rotating block 114 is rotatably mounted on the connecting block 113, an inner retracting block 116 is slidably mounted in the upper rotating block 114, and a strong spring 115 is arranged between the inner retracting block 116 and the upper rotating block 114.

[0037] like Figure 3-Figure 7As shown, the transmission mechanism includes a stand 118 fixedly mounted on the bottom box 102, a vertical shaft 122 is rotatably mounted on the stand 118, a transmission wheel 123 and an upper bevel gear 121 are fixedly mounted on the vertical shaft 122, a transmission belt 124 is wrapped around the transmission wheel 123 and the bottom transmission wheel 302, a bevel gear 120 is rotatably mounted on the stand 118, a docking gear 119 is fixedly mounted on the bevel gear 120, the bevel gear 120 is meshed with the upper bevel gear 121, and a descending rack 117 is fixedly mounted on the lifting frame 111, the descending rack 117 is meshed with the docking gear 119.

[0038] By turning the adjusting knob 110, the height of the adjusting knob 110 relative to the rising column 109 can be adjusted to adapt to the processing of wheels of different heights, and the lower mold 127, the upper mold 108 and the side mold 202 can be replaced at the same time.

[0039] In the initial state, the downward pressure spring 107 presses the upper mold 108 against the side mold 202. At the same time, the side mold 202 is in a retracted state. The sealing ring 125 cooperates with the sealing groove 205 to ensure sealing. Casting is carried out into the upper mold 108 through the casting hole on the upper mold 108. The internal motor 103 rotates to drive the motor bevel gear 104 to rotate, thereby driving the bottom bevel gear 105 and the lifting screw 106 to rotate, thereby driving the internal threaded sleeve 112 and the lifting frame 111 to descend. The descent of the lifting frame 111 drives the descending rack 117 to descend. When the descending rack 117 contacts the docking gear 119, the descending rack 117 drives the docking gear 119 to rotate, thereby driving the bevel gear 120 to rotate, thereby driving the upper bevel gear 121 and the vertical shaft 122 to rotate, thereby driving the transmission wheel 123 to rotate, thereby driving the bottom transmission wheel 302 to rotate through the transmission belt 124, and knocking on the surface of the side mold 202 to discharge the bubbles in the mold during casting, and with the subsequent demolding.

[0040] After the casting is completed and cooled for a period of time, the internal motor 103 rotates to drive the motor bevel gear 104 to rotate, thereby driving the bottom bevel gear 105 and the lifting screw 106 to rotate, thereby driving the internal threaded sleeve 112 and the lifting frame 111 to rise, thereby driving the rising column 109 to rise through the adjustment knob 110, thereby driving the upper mold 108 to rise, and the downward pressure spring 107 is stretched. After the upper mold 108 rises a certain distance, the connecting block 113 begins to contact the ejector rod 404.

[0041] like Figure 8 , Fig. 9As shown, the side mold device includes a slide rail 204 fixedly mounted on the surface plate 101, a side mold 202 is slidably mounted on the slide rail 204, the side mold 202 is fixedly mounted on the top of the side electric cylinder 201, a sealing groove 205 is provided on the side mold 202, a rack plate 203 is fixedly mounted on the side mold 202, a docking rack 206 is fixedly mounted on the rack plate 203, a transfer gear 207 is rotatably mounted on the surface plate 101, and the transfer gear 207 is meshed with the docking rack 206.

[0042] When the casting is completed, the side electric cylinder 201 contracts and drives the side mold 202 to slide outward along the slide rail 204, so that the side mold 202 is separated from the cast wheel hub. The side mold 202 slides outward and drives the docking rack 206 to slide, thereby driving the transfer gear 207 to rotate, thereby driving the other side mold 202 to slide outward synchronously. Before the next casting operation, the side electric cylinder 201 extends and drives the two side molds 202 to fit back to the initial position.

[0043] like Fig.10 , Fig.11 As shown, the knocking device includes a screw shaft 307 fixedly mounted on the rotating column 301, a lifting rod 310 is slidably mounted on the surface plate 101, an inner lifting frame 303 is fixedly mounted on the lifting rod 310, the inner lifting frame 303 and the screw shaft 307 form a threaded transmission, an outer groove rotating shaft 304 is rotatably mounted on the inner lifting frame 303, an outer transmission wheel 305 is slidably mounted on the outer groove rotating shaft 304, the outer transmission wheel 305 is rotatably mounted with the surface plate 101, an inner transmission wheel 308 is fixedly mounted on the screw shaft 307, the inner transmission wheel 308 is rotatably mounted with the surface plate 101, a triangular transmission belt 306 is wound around the outer transmission wheel 305 and the inner transmission wheel 308, a limiting frame 309 is fixedly mounted on the rotating column 301, a lifting sleeve 311 is fixedly mounted on the lifting rod 310, the lifting sleeve 311 slides in the limiting frame 309, and a reciprocating mechanism is arranged on the surface plate 101.

[0044] like Fig.10 , Fig.11 As shown, the reciprocating mechanism includes a connecting frame 315 fixedly mounted on the surface plate 101, the outer groove rotating shaft 304 can slide and rotate in the connecting frame 315, a rotating connecting rod 314 is fixedly mounted on the outer groove rotating shaft 304, a rotating rod 313 is rotatably mounted on the rotating connecting rod 314, a knocking rod 312 is rotatably mounted on the rotating rod 313, and the knocking rod 312 slides in the lifting sleeve 311.

[0045] The rotation of the bottom transmission wheel 302 drives the rotating column 301 and the screw shaft 307 to rotate, thereby driving the inner transmission wheel 308 to rotate, thereby driving the outer transmission wheel 305 to rotate through the triangular transmission belt 306, thereby driving the outer groove rotating shaft 304 to rotate, thereby driving the rotating connecting rod 314 to rotate, thereby driving the rotating rod 313 to rotate, and driving the knocking rod 312 to continuously slide back and forth in the lifting sleeve 311, and repeatedly knocking the surface of the opposite side mold 202 through the knocking rod 312. At the same time, the rotation of the screw shaft 307 will drive the inner lifting frame 303 to rise and fall, and the lifting of the inner lifting frame 303 drives the outer groove rotating shaft 304 and the lifting rod 310 to rise and fall, and the outer groove rotating shaft 304 slides with the outer transmission wheel 305, and the lifting rod 310 drives the lifting sleeve 311 to slide in the limit frame 309, thereby realizing the continuous lifting and knocking of the opposite side mold 202 by the knocking rod 312.

[0046] like Fig.12 As shown, the ejection device includes an ejection ring 401 fixedly mounted on an ejection column 402 , an ejection rod 404 is fixedly mounted on the ejection column 402 , and an ejection spring 403 is provided between the ejection rod 404 and the surface plate 101 .

[0047] When the lifting frame 111 rises along the rising column 109, after the upper mold 108 moves upward a short distance, the retracted block 116 begins to contact the ejector rod 404. As the lifting frame 111 continues to rise, the ejector rod 404 is driven to rise by the retracted block 116. The elastic force of the strong spring 115 is greater than the elastic force of the ejector spring 403, thereby driving the ejector column 402 and the ejector ring 401 to rise, and the cast wheel hub is pushed upward by the ejector ring 401. The ejector spring 403 is compressed. When the ejector ring 405 contacts the surface plate 101, the ejector ring 401 just pushes the wheel hub out of the lower mold 127, and the wheel hub is taken out. At this time, if the lifting frame 111 has not risen to the highest point, the retracted block 116 continues to rise and cannot drive the ejector rod 404 to rise. At this time, the retracted block 116 slides toward the upper rotating block 114 through the slope, and the strong spring 115 will be compressed. When the retracted block 116 passes through the ejector column 402 and reaches above the ejector column 402, the ejector spring 403 rebounds, driving the ejector ring 401 and the ejector rod 404 to reset, and then the internal motor 103 reverses, driving the upper mold 108 back to the initial position, and at the same time the side mold 202 returns to prepare for the next casting operation. When the retracted block 116 moves downward and contacts the ejector rod 404, the ejector rod 404 drives the strong spring 115 to rotate relative to the connecting block 113, and the strong spring 115 and the connecting block 113 will pass through the ejector rod 404 to reach below the ejector rod 404, return to the initial position, and prepare to continue the casting operation downward and knock the side mold 202.

[0048] The working principle of a multi-size automobile wheel hub casting device disclosed in the present invention is as follows: in the initial state, the downward pressure spring 107 presses the upper mold 108 onto the side mold 202, and at the same time the side mold 202 is in a retracted state, the sealing ring 125 cooperates with the sealing groove 205 to ensure sealing, and casting is performed in the upper mold 108 through the casting hole on the upper mold 108, the internal motor 103 rotates to drive the motor bevel gear 104 to rotate, thereby driving the bottom bevel gear 105 and the lifting screw 106 to rotate, thereby driving the internal threaded sleeve 112 and the lifting frame 111 to descend, and the lifting frame 111 descends to drive the descending rack 117 to descend, and when the descending rack 117 contacts the docking gear 119, the descending rack 117 drives the docking gear 119 to rotate, thereby driving the bevel gear 120 to rotate, thereby driving the upper bevel gear 121 and the vertical shaft 122 to rotate, thereby driving the transmission wheel 123 to rotate, thereby driving through the transmission belt 124 The bottom transmission wheel 302 rotates, and the rotation of the bottom transmission wheel 302 drives the rotating column 301 and the screw shaft 307 to rotate, thereby driving the inner transmission wheel 308 to rotate, thereby driving the outer transmission wheel 305 to rotate through the triangular transmission belt 306, thereby driving the outer groove rotating shaft 304 to rotate, thereby driving the rotating connecting rod 314 to rotate, thereby driving the rotating rod 313 to rotate, and driving the knocking rod 312 to continuously slide back and forth in the lifting sleeve 311, and repeatedly knocking the surface of the opposite side mold 202 through the knocking rod 312. At the same time, the rotation of the screw shaft 307 will drive the inner lifting frame 303 to rise and fall, and the lifting of the inner lifting frame 303 drives the outer groove rotating shaft 304 and the lifting rod 310 to rise and fall, and the outer groove rotating shaft 304 slides with the outer transmission wheel 305, and the lifting rod 310 drives the lifting sleeve 311 to slide in the limiting frame 309, thereby realizing the continuous lifting and knocking of the knocking rod 312 on the opposite side mold 202, expelling the bubbles in the mold during casting, and demolding with the subsequent demolding. When the casting is completed and cooled for a period of time, the side electric cylinder 201 contracts and drives the side mold 202 to slide outward along the slide rail 204, so that the side mold 202 is separated from the cast wheel hub. The side mold 202 slides outward and drives the docking rack 206 to slide, thereby driving the transfer gear 207 to rotate, thereby driving the other side mold 202 to slide outward synchronously. Before the next casting operation, the side electric cylinder 201 extends and drives the two side molds 202 to fit back to the initial position. At the same time, the internal motor 103 rotates and drives the motor bevel gear 104 to rotate, thereby driving the bottom bevel gear 105 and the lifting screw 106 to rotate, thereby driving the internal threaded sleeve 112 and the lifting frame 111 to rise, thereby driving the lifting column 109 to rise through the adjustment knob 110, thereby driving the upper mold 108 to rise, and the downward pressure spring 107 is stretched. After the upper mold 108 rises a certain distance, the connecting block 113 begins to contact the ejector rod 404.When the lifting frame 111 rises along the rising column 109, after the upper mold 108 moves upward a short distance, the retracted block 116 begins to contact the ejector rod 404. As the lifting frame 111 continues to rise, the ejector rod 404 is driven to rise by the retracted block 116. The elastic force of the strong spring 115 is greater than the elastic force of the ejector spring 403, thereby driving the ejector column 402 and the ejector ring 401 to rise, and the cast wheel hub is pushed upward by the ejector ring 401. The ejector spring 403 is compressed. When the ejector ring 405 contacts the surface plate 101, the ejector ring 401 just pushes the wheel hub out of the lower mold 127, and the wheel hub is taken out. At this time, if the lifting frame 111 has not risen to the highest point, the retracted block 116 continues to rise and cannot drive the ejector rod 404 to rise. At this time, the retracted block 116 slides toward the upper rotating block 114 through the slope, and the strong spring 115 will be compressed. When the retracted block 116 passes through the ejector column 402 and reaches above the ejector column 402, the ejector spring 403 rebounds, driving the ejector ring 401 and the ejector rod 404 to reset, and then the internal motor 103 reverses, driving the upper mold 108 back to the initial position, and at the same time the side mold 202 returns to prepare for the next casting operation. When the retracted block 116 moves downward and contacts the ejector rod 404, the ejector rod 404 drives the strong spring 115 to rotate relative to the connecting block 113, and the strong spring 115 and the connecting block 113 will pass through the ejector rod 404 to reach below the ejector rod 404, return to the initial position, and prepare to continue the casting operation downward and knock the side mold 202.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-size automobile wheel casting device, comprising an operating device, characterized in that: The operating device comprises a surface plate (101), a bottom box (102) is fixedly mounted on the surface plate (101), the operating device is used for casting the wheel hub, and a side mold device, a knocking device and an ejection device are arranged on the operating device. The side mold device comprises a side electric cylinder (201), the side electric cylinder (201) is fixedly mounted on the surface plate (101), the side mold device is used for assisting the casting of the wheel hub, the knocking device comprises a rotating column (301), a bottom transmission wheel (302) is fixedly mounted on the rotating column (301), the rotating column (301) is rotatably mounted on the bottom box (102), the knocking device is used for knocking the side mold to discharge bubbles in the mold during casting, and the ejection device comprises an ejection column (402) slidably mounted on the surface plate (101), and the ejection device is used for ejecting the automobile wheel hub after casting; The operating device comprises an internal motor (103) fixedly mounted on a bottom box (102), a motor bevel gear (104) fixedly mounted on the motor shaft of the internal motor (103), a lifting screw (106) rotatably mounted on the bottom box (102), a bottom bevel gear (105) fixedly mounted on the lifting screw (106), the bottom bevel gear (105) meshing with the motor bevel gear (104), an outer guide cylinder (126) fixedly mounted on the surface plate (101), a lower mold (127) fixedly mounted on the surface plate (101), an upper mold mechanism arranged on the outer guide cylinder (126), and a transmission mechanism arranged on the bottom box (102); The upper mold mechanism comprises a rising column (109) slidably mounted on an outer guide cylinder (126); an adjusting knob (110) is rotatably mounted on the rising column (109) by means of a thread; the rising column (109) is slidably mounted on a surface plate (101); an upper mold (108) is fixedly mounted on the rising column (109); a downward pressure spring (107) is arranged between the upper mold (108) and the surface plate (101); a sealing ring (125) is arranged on the upper mold (108); and an upward lifting mechanism is arranged on the rising column (109); The lifting mechanism comprises a lifting frame (111) slidably mounted on the lifting column (109), an internal thread sleeve (112) fixedly mounted on the lifting frame (111), the internal thread sleeve (112) and the lifting screw rod (106) forming a threaded transmission, a connecting block (113) fixedly mounted on the lifting frame (111), an upper rotating block (114) rotatably mounted on the connecting block (113), an inner retracting block (116) slidably mounted in the upper rotating block (114), and a strong spring (115) is arranged between the inner retracting block (116) and the upper rotating block (114); The transmission mechanism comprises a stand (118) fixedly mounted on the bottom box (102), a stand (118) rotatably mounted with a stand shaft (122), a transmission wheel (123) and an upper bevel gear (121) fixedly mounted on the stand shaft (122), a transmission belt (124) wound around the transmission wheel (123) and the bottom transmission wheel (302), a bevel gear (120) rotatably mounted on the stand (118), a docking gear (119) fixedly mounted on the bevel gear (120), the bevel gear (120) meshing with the upper bevel gear (121), and a descending rack (117) fixedly mounted on the lifting frame (111), the descending rack (117) meshing with the docking gear (119); The knocking device comprises a screw shaft (307) fixedly mounted on a rotating column (301), a lifting rod (310) slidably mounted on the surface plate (101), an inner lifting frame (303) fixedly mounted on the lifting rod (310), the inner lifting frame (303) and the screw shaft (307) forming a threaded transmission, an outer groove rotating shaft (304) rotatably mounted on the inner lifting frame (303), an outer transmission wheel (305) slidably mounted on the outer groove rotating shaft (304), and the outer transmission wheel (305) and the surface plate (101) are fixedly mounted on the lifting rod (310), the inner lifting frame (303) and the screw shaft (307) forming a threaded transmission, an outer groove rotating shaft (304) rotatably mounted on the inner lifting frame (303), an outer groove rotating shaft (304) slidably mounted on the outer transmission wheel (305), and the outer transmission wheel (305) and the surface plate (101) are fixedly mounted on the lifting rod (310), the inner lifting frame (303) and the screw shaft (307) forming a threaded transmission The plate (101) is rotatably mounted, an inner transmission wheel (308) is fixedly mounted on the screw shaft (307), the inner transmission wheel (308) and the surface plate (101) are rotatably mounted, a triangular transmission belt (306) is wound around the outer transmission wheel (305) and the inner transmission wheel (308), a limit frame (309) is also provided, a lifting sleeve (311) is fixedly mounted on the lifting rod (310), the lifting sleeve (311) slides in the limit frame (309), and a reciprocating mechanism is provided on the surface plate (101); The reciprocating mechanism comprises a connecting frame (315) fixedly mounted on the surface plate (101), an outer groove rotating shaft (304) being capable of sliding and rotating in the connecting frame (315), a rotating connecting rod (314) being fixedly mounted on the outer groove rotating shaft (304), a rotating rod (313) being rotatably mounted on the rotating connecting rod (314), a knocking rod (312) being rotatably mounted on the rotating rod (313), and the knocking rod (312) sliding in the lifting sleeve (311).

2. A multi-size automobile wheel hub casting device according to claim 1, characterized in that: The side mold device comprises a slide rail (204) fixedly mounted on the surface plate (101), a side mold (202) being slidably mounted on the slide rail (204), the side mold (202) being fixedly mounted on the top of the side electric cylinder (201), a sealing groove (205) being provided on the side mold (202), a rack plate (203) being fixedly mounted on the side mold (202), a docking rack (206) being fixedly mounted on the rack plate (203), a transfer gear (207) being rotatably mounted on the surface plate (101), and the transfer gear (207) being meshed with the docking rack (206).

3. The multi-size automobile wheel hub casting device according to claim 1, characterized in that: The ejection device comprises an ejection ring (401) fixedly mounted on an ejection column (402), an ejection rod (404) fixedly mounted on the ejection column (402), and an ejection spring (403) is provided between the ejection rod (404) and the surface plate (101).

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