Silica sol investment casting molding post-processing device for high-precision automobile casting

Abstract

The invention relates to the technical field of casting polishing, in particular to a silica sol investment casting forming post-processing device for high-precision automobile castings, which comprises a box body, a shot blasting unit and closing doors, the shot blasting unit is arranged on the box body, and the two closing doors which are bilaterally symmetrical are hinged to the front surface of the box body; a conveying mechanism used for conveying a casting into the box body is arranged on the upper surface of the box body, the processing device further comprises a hoisting mechanism used for integrally loading the casting, the hoisting mechanism is arranged on the conveying mechanism, and the conveying mechanism drives a hoisting rod to enable the casting to revolve in the box body. And meanwhile, through cooperation with the supporting mechanism, the castings synchronously rotate in the revolution process, and the castings are intermittently inclined upwards in the revolution process, so that the castings can be polished in all directions without dead corners, the polishing efficiency of the castings is improved, and the polishing effect of the castings is better.

Description

Technical Field

[0001] The invention relates to the technical field of casting polishing, in particular to a post-processing device for silica sol investment casting molding of high-precision automobile castings. Background Art

[0002] High-precision automotive castings are indispensable and important components in automobile manufacturing. High-precision automotive castings are widely used in various systems of automobiles, such as engines, gearboxes, and shock absorbers, and play a vital role in the performance and safety of automobiles. Usually, high-precision automotive castings are cast using the silica sol investment casting method; silica sol investment casting, also known as lost wax casting, mainly includes wax pressing, wax repairing, tree assembly, slurry dipping, wax melting, casting molten metal and post-processing procedures.

[0003] When post-processing the cast automobile castings, the finished automobile castings are usually obtained after a series of processes such as shell shaking, cutting, grinding, polishing and testing. When polishing the automobile castings, shot blasting machines are usually used for polishing operations.

[0004] Since automobile castings have irregular structures (such as Figure 2 As shown in the figure, when polishing the automobile casting, both the inner and outer surfaces of the automobile casting need to be fully polished. When polishing such irregular castings in the existing polishing method, the casting is usually rotated and polished inside the shot blasting equipment. In this way, the inclination angle of some special-shaped positions deviates from the shot blasting direction of the shot blasting equipment, which easily leads to the inner surface of some special-shaped positions not being polished in place. When the automobile casting is placed inside the shot blasting equipment, the automobile casting needs to be clamped, and a dead angle of the clamping position will appear during the polishing process, resulting in the clamping position not being fully polished. Summary of the invention

[0005] Therefore, the present invention provides a post-processing device for silica sol investment casting of high-precision automobile castings, which solves the above technical problems.

[0006] The present invention provides a post-processing device for silica sol investment casting of high-precision automobile castings, comprising a box body, a shot blasting unit and a closed door, wherein the box body is provided with a shot blasting unit, the front surface of the box body is hinged with two left-right symmetrical closed doors, the upper surface of the box body is provided with a conveying mechanism for conveying the castings to the inside of the box body, and the post-processing device also includes a hoisting mechanism for loading the castings as a whole, and the hoisting mechanism is arranged on the conveying mechanism.

[0007] The post-processing device also includes a supporting mechanism for placing a single casting. The supporting mechanisms are multiple and arranged in a circular array on the hanging mechanism. The hanging mechanism is provided with an adjustment mechanism corresponding to the multiple supporting mechanisms one by one.

[0008] The supporting mechanism includes a connecting shaft rotatably connected to the lifting mechanism, a supporting member is arranged on the circumferential surface of the connecting shaft, a plurality of groups of driving members are arranged on the supporting member, the number of driving members in each group of the driving members is two and they are arranged in a centrally symmetrical manner, limiting members are arranged at positions corresponding to the driving members on the circumferential surface of the connecting shaft, and a transmission gear is fixedly connected to the bottom end of the connecting shaft.

[0009] The support member includes a fixing seat fixedly connected to the circumferential surface of the connecting shaft and evenly distributed in the up and down directions, multiple groups of the driving members correspond one to one with the multiple fixing seats, and two placement rings symmetrically arranged with the connecting shaft as a reference are hinged on the fixing seat through a torsion spring, an adjustment ring is rotatably connected to the outer circumferential surface of the placement ring, and a plurality of support plates distributed in a circular array are fixedly connected to the lower surface of the adjustment ring, and a linkage vertical plate is hinged together on the outer circumferential surfaces of the plurality of placement rings located on the same vertical line.

[0010] According to an embodiment of the present invention, the adjustment ring and the placement ring are frictionally fitted, and remain relatively still when not subject to external force. Evenly distributed grooves are provided on the outer circumferential surface of the adjustment ring, and a limit plate is provided on the fixed seat and below the placement ring to keep the placement ring horizontal.

[0011] According to an embodiment of the present invention, the conveying mechanism includes a fixed frame fixedly connected to the upper surface of the box body, two left-right symmetrical sliding rails are fixedly connected to the inner side of the top of the fixed frame, two electric sliders distributed front and back are slidably connected to the sliding rails, the two electric sliders distributed left and right are fixedly connected by a connecting cross brace, a driving motor is fixedly installed on the upper surfaces of the two connecting cross braces, and a hook is fixedly connected to the output shaft of the driving motor.

[0012] According to an embodiment of the present invention, the lifting mechanism includes a lifting ring hung on the conveying mechanism and a lifting rod fixedly connected to the bottom end of the lifting ring, two upper and lower symmetrical cross-shaped connecting plates are fixedly connected to the circumferential surface of the lifting rod, the bottom end of the lifting rod is rotatably connected to a rectangular bottom plate, the upper surface of the rectangular bottom plate is provided with a plurality of evenly distributed through holes for facilitating the shot blasting to fall downward and be recovered, the upper surface of the rectangular bottom plate is fixedly connected to an inner gear ring, and a plurality of adjustment arc plates distributed in a circular array are fixedly connected to the outer circumferential surface of the inner gear ring.

[0013] According to an embodiment of the present invention, the inner gear ring is coaxial with the suspension rod, and the inner gear ring is meshed with the transmission gear. The left and right sides of the rear end of the rectangular bottom plate are provided with grooves that allow the rectangular bottom plate to smoothly enter the inside of the box body. The upper surface of the adjusting arc plate is gradually inclined upward along the rotation direction, and the inclined surface of the adjusting arc plate is slidably matched with the lower surface of the adjusting ring at the bottom end. A plane is provided at a distance after the highest inclination point of the upper surface of the adjusting arc plate.

[0014] According to an embodiment of the present invention, the adjustment mechanism includes a supporting vertical plate fixedly connected to the upper surface of a rectangular base plate, and a plurality of mounting seats evenly distributed in the up and down directions are fixedly connected to one side of the supporting vertical plate close to the center of the suspension rod, and an adjustment block is elastically hinged on the mounting seat, and one end of the adjustment block close to the center of the suspension rod is set at a chamfered right angle and cooperates with the groove on the adjustment ring, and the elastic force between the adjustment block and the mounting seat is greater than the static friction between the casting and the support plate.

[0015] According to an embodiment of the present invention, the driving member includes a transmission box fixedly connected to the connecting shaft, the upper surface of the transmission box is rotatably connected to the transmission shaft, the surface of the transmission box close to the placement ring is rotatably connected to a linkage shaft, and the top end of the transmission shaft is fixedly connected to a linkage gear.

[0016] According to an embodiment of the present invention, the bottom end of the transmission shaft penetrates into the transmission box, and the end of the linkage shaft away from the placement ring penetrates into the transmission box and is connected to the bottom end of the transmission shaft through a bevel gear transmission.

[0017] According to an embodiment of the present invention, the limiting member includes two driven gears rotatably connected to the circumferential surface of the connecting shaft and distributed up and down at the positions corresponding to the linkage gears, the driven gears are meshed with their corresponding linkage gears, and the upper surface of each of the driven gears is fixedly connected to a bearing seat, and a limiting pressure plate is elastically hinged on the bearing seat.

[0018] According to an embodiment of the present invention, the bearing seat sleeve is arranged on the circumferential surface of the connecting shaft and is rotatably connected to the connecting shaft. Under normal conditions, the limiting pressure plate and the placement ring are arranged parallel to each other and deviate from the top of their corresponding placement rings.

[0019] The technical solution of the present invention is as follows: 1. The conveying mechanism drives the suspension rod to make the casting revolve inside the box, and at the same time cooperates with the supporting mechanism to make the casting rotate synchronously during the revolution, and the casting is intermittently tilted upward during the revolution, so that the casting can be polished in all directions without dead angles, the polishing efficiency of the casting is improved, and the polishing effect of the casting is better.

[0020] 2. Through the setting of the adjustment mechanism, the supporting position of the bottom of the casting can be switched intermittently in cooperation with the supporting parts to avoid polishing dead corners. The supporting position of the casting can be switched during the polishing process of the casting to avoid the situation where the supporting position on the casting is not polished in place, thereby further improving the polishing efficiency of the casting.

[0021] 3. By setting the driving parts and the limiting parts, the casting can be limited for the second time when the casting is tilted for polishing, so as to avoid the impact force during the polishing of the casting in a tilted state causing the placement position of the casting to be offset, thereby ensuring the normal polishing of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a post-processing device for silica sol investment casting of high-precision automobile castings provided by the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the automobile casting provided by the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the conveying mechanism provided by the present invention.

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the lifting mechanism provided by the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the rectangular bottom plate and the box body provided by the present invention.

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the support mechanism provided by the present invention.

[0029] Figure 7 The present invention provides Figure 6 Enlarged view of part A.

[0030] Figure 8 The present invention provides Figure 6 Magnified view of part B.

[0031] Fig. 9 It is a cross-sectional schematic diagram of the transmission box provided by the present invention.

[0032] Fig.10 It is a three-dimensional structural schematic diagram of the adjustment mechanism provided by the present invention.

[0033] Fig.11 The present invention provides Fig.10 Magnified view of part C.

[0034] 1. Box body; 2. Shot blasting unit; 3. Closed door; 4. Conveying mechanism; 5. Hoisting mechanism; 6. Adjusting mechanism; 7. Supporting mechanism; 41. Fixed frame; 42. Sliding track; 43. Electric slider; 44. Driving motor; 45. Hook; 51. Suspension rod; 52. Cross-shaped connecting plate; 53. Rectangular bottom plate; 54. Inner gear ring; 55. Adjusting arc plate; 61. Mounting seat; 62. Adjusting block; 63. Supporting vertical plate; 71. Driving member; 72. Connecting shaft; 73. Support member; 74. Limiting member; 75. Transmission gear; 711. Linkage gear; 712. Transmission shaft; 713. Transmission box; 714. Linkage shaft; 731. Fixed seat; 732. Placement ring; 733. Support plate; 734. Adjusting ring; 735. Linkage vertical plate; 741. Driven gear; 742. Bearing seat; 743. Limiting pressure plate. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] like Figure 1 and Figure 2 As shown, a post-processing device for silica sol investment casting of high-precision automobile castings includes a box body 1, a shot blasting unit 2 and a closed door 3. The box body 1 is provided with a shot blasting unit 2. The front surface of the box body 1 is hinged with two closed doors 3 that are symmetrical on the left and right. The upper surface of the box body 1 is provided with a conveying mechanism 4 for conveying the casting to the inside of the box body 1. The post-processing device also includes a hoisting mechanism 5 for loading the casting as a whole. The hoisting mechanism 5 is arranged on the conveying mechanism 4. The post-processing device also includes a supporting mechanism 7 for placing a single casting. The number of the supporting mechanisms 7 is multiple and they are arranged in a circular array on the hoisting mechanism 5. The hoisting mechanism 5 is provided with an adjusting mechanism 6 corresponding to the multiple supporting mechanisms 7. It should be noted that the box body 1, the shot blasting unit 2 、 The closed door 3, the conveying mechanism 4 and the hoisting mechanism 5 are prior art.

[0037] like Figure 1 and Figure 3As shown, the conveying mechanism 4 includes a fixing frame 41 fixedly connected to the upper surface of the box body 1, two left-right symmetrical sliding rails 42 are fixedly connected to the inner side of the top of the fixing frame 41, and two electric sliders 43 distributed front and back are slidably connected to the sliding rails 42 along the front-to-back direction. The two electric sliders 43 distributed left and right are fixedly connected by a connecting cross brace, and a driving motor 44 is fixedly installed on the upper surface of the two connecting cross braces distributed front and back, and a hook 45 is fixedly connected to the bottom end of the output shaft of the driving motor 44.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the lifting mechanism 5 includes a lifting ring hung on the bottom end of the lifting hook 45 and a lifting rod 51 fixedly connected to the bottom end of the lifting ring, two cross-shaped connecting plates 52 symmetrically connected to the bottom of the lifting ring are fixedly connected to the circumferential surface of the lifting rod 51, and a rectangular bottom plate 53 is rotatably connected to the bottom end of the lifting rod 51. The upper surface of the rectangular bottom plate 53 is provided with a plurality of evenly distributed through holes for facilitating the shot blasting to fall downward and be recovered, and an inner gear ring 54 is fixedly connected to the upper surface of the rectangular bottom plate 53. The inner gear ring 54 is coaxial with the lifting rod 51, and a plurality of adjusting arc plates 55 distributed in a circular array are fixedly connected to the outer circumferential surface of the inner gear ring 54, and the upper surface of the adjusting arc plate 55 is gradually inclined upward along the rotation direction, and the left and right sides of the rear end of the rectangular bottom plate 53 are provided with grooves that allow the rectangular bottom plate 53 to smoothly enter the interior of the box body 1, and the upper surface of the adjusting arc plate 55 is a plane provided with a distance after the highest point of the inclination of the upper surface of the adjusting arc plate 55.

[0039] like Figure 1 , Figure 4 and Figure 6 As shown, the support mechanism 7 includes a connecting shaft 72 rotatably connected to four end positions between the opposite surfaces of the two cross-shaped connecting plates 52, a support member 73 is arranged on the circumferential surface of the connecting shaft 72, and a plurality of groups of driving members 71 are arranged on the support member 73. The number of driving members 71 in each group of driving members 71 is two and they are arranged in a centrally symmetrical manner. Limiting members 74 are arranged at positions on the circumferential surface of the connecting shaft 72 corresponding to the driving members 71. The bottom end of the connecting shaft 72 passes through the lower surface of the cross-shaped connecting plate 52 below and is fixedly connected to a transmission gear 75, which meshes with the inner gear ring 54.

[0040] like Figure 6 , Figure 7 and Figure 8As shown, the support member 73 includes a fixed seat 731 fixedly connected to the circumferential surface of the connecting shaft 72 and evenly distributed in the up and down directions. The multiple sets of driving members 71 correspond to the multiple fixed seats 731 one by one. The fixed seat 731 is hinged with two placement rings 732 symmetrically arranged with the connecting shaft 72 as a reference through a torsion spring. The outer circumferential surface of the placement ring 732 is rotatably connected with an adjustment ring 734. The inclined surface of the adjustment arc plate 55 is slidably matched with the lower surface of the adjustment ring 734 at the bottom. The lower surface of the adjustment ring 734 is fixedly connected There are multiple support plates 733 distributed in a circular array, and a linkage vertical plate 735 is hinged on the outer circumferential surfaces of multiple placement circles 732 located on the same vertical line. The adjustment ring 734 and the placement circle 732 are friction-fitted. When not subject to external force, the adjustment ring 734 and the placement circle 732 remain relatively still. Evenly distributed grooves are arranged on the outer circumferential surface of the adjustment ring 734, and a limit plate (not shown in the figure) is arranged on the fixed seat 731 and below the placement circle 732 to keep the placement circle 732 horizontal.

[0041] When used in practice, first place the casting to be polished (such as Figure 2 The castings are placed one by one inside the placement circle 732, and the support plate 733 is used to support the castings inside the placement circle 732. When all the castings are placed, the external forklift equipment forks the bottom of the rectangular bottom plate 53 to hang the suspension rod 51 on the hook 45. At this time, the electric slider 43 moves backward on the sliding track 42 to send the suspension rod 51 into the interior of the box body 1. At the same time, the rectangular bottom plate 53 is clamped at the bottom end of the interior of the box body 1. With the groove setting at the rear end of the rectangular bottom plate 53, the rectangular bottom plate 53 can be more smoothly entered into the interior of the box body 1, and then the closed door 3 is closed.

[0042] At this time, the shot blasting unit 2 starts to work to polish the casting on the placement circle 732, and the driving motor 44 starts to rotate. Since the rectangular bottom plate 53 is clamped in the interior of the box body 1, the driving motor 44 rotates through the hook 45 to drive the suspension rod 51 to rotate on the rectangular bottom plate 53, and at the same time drives multiple connecting shafts 72 to rotate synchronously through the cross connecting plate 52. The connecting shaft 72 drives the placement circle 732 to rotate through the fixed seat 731 thereon, so that the casting on the placement circle 732 revolves around the suspension rod 51. At the same time, when the suspension rod 51 drives the connecting shaft 72 to rotate, the transmission gear 75 at the bottom end of the connecting shaft 72 always engages with the inner gear ring 54, so that the connecting shaft 72 rotates synchronously during the revolution of the suspension rod 51, so as to realize the synchronous rotation of the casting during the revolution, so that each position of the protruding curved surface of the casting can be polished multiple times, thereby improving the polishing efficiency of the casting.

[0043] When the placement ring 732 revolves with the suspension rod 51, the adjustment ring 734 rotates synchronously with the placement ring 732. When passing through the adjustment arc plate 55, it first passes through the lowest end of the inclined surface of the adjustment arc plate 55. As the suspension rod 51 gradually rotates, the lower surface of the adjustment ring 734 slides from low to high along the inclined surface of the adjustment arc plate 55, and at the same time pushes the placement ring 732 to deflect on the fixed seat 731. At this time, the casting inside the placement ring 732 is changed from a horizontal state to an inclined state. When the adjustment ring 734 slides to the highest point of the inclined surface of the adjustment arc plate 55, the lower surface of the adjustment ring 734 slides along the plane position of the upper surface of the adjustment arc plate 55 so that the casting maintains the inclined state and slides for a distance, so that the inner surface of the casting can be fully polished.

[0044] When the adjusting ring 734 is away from the adjusting arc plate 55, the casting is restored to a horizontal state by the combined effect of the gravity of the casting itself and the elastic force of the torsion spring between the placement ring 732 and the fixing seat 731, in cooperation with the limit plate on the fixing seat 731. With the continuous rotation of the suspension rod 51, in cooperation with a plurality of adjusting arc plates 55, the placement ring 732 can be intermittently tilted, so that the inner surface of the casting can be fully polished. By setting the linkage vertical plate 735, the placement rings 732 on the same vertical line can be tilted synchronously.

[0045] It should be noted that, during the upward flipping process of the bottom placement circle 732 , the shot blasting may be blocked by the adjustment arc plate 55 , so no casting may be placed in the bottom placement circle 732 .

[0046] like Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the driving member 71 includes a transmission box 713 fixedly connected to the circumferential surface of the connecting shaft 72, the upper surface of the transmission box 713 is rotatably connected to the transmission shaft 712, the surface of the transmission box 713 close to the placement circle 732 is rotatably connected to the linkage shaft 714, the top of the transmission shaft 712 is fixedly connected to the linkage gear 711, the bottom end of the transmission shaft 712 passes through the interior of the transmission box 713, the end of the linkage shaft 714 away from the placement circle 732 passes through the interior of the transmission box 713 and is connected to the bottom end of the transmission shaft 712 through a bevel gear transmission. It should be noted that the two transmission shafts 712 in a group of driving members 71 have different heights, so the linkage gears 711 are also distributed up and down.

[0047] like Figure 6 and Figure 7As shown, the limit member 74 includes two driven gears 741 distributed up and down and rotatably connected to the circumferential surface of the connecting shaft 72 and corresponding to the position of the linkage gear 711. The driven gears 741 are meshed with their corresponding linkage gears 711. The upper surface of each driven gear 741 is fixedly connected to a bearing seat 742, and a limit pressure plate 743 is elastically hinged on the bearing seat 742. The bearing seat 742 is sleeved on the circumferential surface of the connecting shaft 72 and is rotatably connected to the connecting shaft 72. In a normal state, the limit pressure plate 743 and the placement ring 732 are arranged parallel to each other and deviate from the top of the corresponding placement ring 732.

[0048] When in use, when the adjusting ring 734 passes through the adjusting arc plate 55, the adjusting ring 734 drives the placing ring 732 to change from a horizontal state to an inclined state. At the same time, the placing ring 732 synchronously drives the transmission shaft 712 to rotate through the linkage shaft 714. The transmission shaft 712 drives the driven gear 741 to rotate synchronously on the connecting shaft 72 through the linkage gear 711. At this time, the driven gear 741 drives the bearing seat 742 to rotate to move the limiting pressure plate 743 to the top of the placing ring 732. When the placing ring 732 changes to an inclined state, the limiting pressure plate 743 is used to press the inner surface of the placing ring 732. The casting generates downward pressure, and cooperates with the elastic force between the limiting pressure plate 743 and the supporting seat 742, so that when the casting becomes in an inclined state, it can remain stable inside the placement circle 732 when it is impacted by the shot blasting unit 2. When the placement circle 732 returns to a horizontal state, the placement circle 732 drives the transmission shaft 712 to reverse through the linkage shaft 714, and the linkage gear 711 drives the driven gear 741 to reverse, so that the supporting seat 742 returns to its original position, and the limiting pressure plate 743 is removed from above the placement circle 732 to prevent the limiting pressure plate 743 from affecting the polishing of the casting.

[0049] like Figure 1 , Fig.10 and Fig.11 As shown, the adjustment mechanism 6 includes a support vertical plate 63 fixedly connected to the upper surface of the rectangular base plate 53, and a plurality of mounting seats 61 evenly distributed along the up and down directions are fixedly connected to one side of the support vertical plate 63 close to the center of the suspension rod 51, and an adjustment block 62 is elastically hinged on the mounting seat 61, and one end of the adjustment block 62 close to the center of the suspension rod 51 is set at a chamfered right angle and cooperates with the groove on the adjustment ring 734, and the elastic force between the adjustment block 62 and the mounting seat 61 is greater than the static friction between the casting and the support plate 733.

[0050] In specific use, when the placement ring 732 revolves with the suspension rod 51, the adjustment ring 734 rotates synchronously with the placement ring 732. When the adjustment ring 734 passes through the adjustment block 62, the end of the adjustment ring 734 farthest from the axis of the suspension rod 51 contacts the adjustment block 62 and cooperates with the groove on the adjustment ring 734. At this time, the adjustment block 62 generates resistance to the adjustment ring 734, and the adjustment ring 734 is subjected to resistance. Since the elastic force between the adjustment block 62 and the mounting seat 61 is greater than the static friction between the casting and the support plate 733, the adjustment ring 734 rotates on the placement ring 732 at this time, and drives the support plate 733 rotates synchronously to switch the contact position between the support plate 733 and the bottom of the casting to avoid polishing dead angles. As the adjusting ring 734 continues to rotate, the adjusting ring 734 separates from the adjusting block 62. The adjusting ring 734 remains stationary on the placement ring 732 after being free from resistance. At this time, the position of the support plate 733 supporting the casting is replaced once. In conjunction with the setting of multiple adjustment mechanisms 6, the adjusting ring 734 can be intermittently turned during the revolution of the placement ring 732 to drive the support plate 733 to replace the support position, thereby ensuring that there will be no polishing dead angles, which will lead to inadequate polishing of the casting.

[0051] After a certain period of continuous polishing, the polishing work of the casting is completed, the closed door 3 is opened, and the electric slider 43 slides forward on the sliding track 42 to pull the casting out of the inside of the box 1, and then the hanging rod 51 is removed from the hook 45 by an external forklift equipment, and the above steps are repeated to carry out the polishing work of the next batch of castings.

[0052] Working principle: When in use, first put the castings to be polished one by one on the support 73, and then the external forklift equipment forks the bottom of the rectangular bottom plate 53 to hang the suspension rod 51 on the hook 45. At this time, the electric slider 43 moves backward on the sliding track 42 to send the suspension rod 51 into the interior of the box 1. At the same time, the rectangular bottom plate 53 is clamped in the interior of the box 1, and then the closed door 3 is closed. The casting on the support 73 is polished by the shot blasting unit 2, and the driving motor 44 starts to rotate to drive the suspension rod 51 to rotate synchronously. At this time, the suspension rod 51 drives the connecting shaft 72 to rotate through the cross-shaped connecting plate 52, so that the casting revolves inside the box 1. At the same time, the transmission gear 75 cooperates with the inner gear ring 54 to drive the connecting shaft 72 to rotate on the cross connecting plate 52 during the revolution of the casting, so that the casting rotates on its own. When the suspension rod 51 drives the connecting shaft 72 to rotate so that the support member 73 passes through the adjustment arc plate 55, the casting can be tilted upward and the inner surface of the casting can be polished. After continuous polishing for a certain period of time, the polishing work of the casting is completed, the closed door 3 is opened, and the electric slider 43 slides forward on the sliding track 42 to pull the casting out of the inside of the box 1, and then the suspension rod 51 is removed from the hook 45 by an external forklift equipment, and the above steps are repeated to polish the next batch of castings.

[0053] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A post-processing device for high-precision automobile castings after silica sol investment casting, comprising a box (1), a shot blasting unit (2) and a closed door (3), wherein the box (1) is provided with a shot blasting unit (2), the front surface of the box (1) is hinged with two closed doors (3) that are symmetrical on both sides, and the upper surface of the box (1) is provided with a conveying mechanism (4) for conveying the castings into the box (1); characterized in that: It also includes a hoisting mechanism (5) for integrally loading the casting, wherein the hoisting mechanism (5) is arranged on the conveying mechanism (4); A supporting mechanism (7) for placing a single casting, wherein the supporting mechanisms (7) are multiple and arranged in a circular array on the hanging mechanism (5), and the hanging mechanism (5) is provided with an adjusting mechanism (6) corresponding to the multiple supporting mechanisms (7) one by one; The support mechanism (7) comprises a connecting shaft (72) rotatably connected to the lifting mechanism (5); a supporting member (73) is arranged on the circumferential surface of the connecting shaft (72); a plurality of groups of driving members (71) are arranged on the supporting member (73); the number of driving members (71) in each group of driving members (71) is two and they are arranged in a centrally symmetrical manner; a limiting member (74) is arranged at a position corresponding to the driving member (71) on the circumferential surface of the connecting shaft (72); and a transmission gear (75) is fixedly connected to the bottom end of the connecting shaft (72); The support member (73) comprises a fixed seat (731) fixedly connected to the circumferential surface of the connecting shaft (72) and uniformly distributed in the up-down direction. The plurality of groups of the driving members (71) correspond to the plurality of fixed seats (731) one by one. The fixed seat (731) is hinged with two placement rings (732) symmetrically arranged with the connecting shaft (72) as a reference via a torsion spring. An adjustment ring (734) is rotatably connected to the outer circumferential surface of the placement ring (732). The lower surface of the adjustment ring (734) is fixedly connected to a plurality of support plates (733) distributed in a circumferential array. A linkage vertical plate (735) is hingedly connected to the outer circumferential surfaces of the plurality of placement rings (732) located on the same vertical line.

2. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 1 is characterized in that: The adjusting ring (734) and the placing ring (732) are frictionally matched, and when no external force is applied, the adjusting ring (734) and the placing ring (732) remain relatively still. The outer circumferential surface of the adjusting ring (734) is provided with evenly distributed grooves, and a limiting plate is provided on the fixing seat (731) and below the placing ring (732) to keep the placing ring (732) horizontal.

3. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 1 is characterized in that: The conveying mechanism (4) comprises a fixing frame (41) fixedly connected to the upper surface of the box body (1), two left-right symmetrical sliding rails (42) are fixedly connected to the inner side of the top of the fixing frame (41), two electric sliders (43) distributed front and back are slidably connected to the sliding rails (42), the two electric sliders (43) distributed left and right are fixedly connected by a connecting cross brace, a driving motor (44) is fixedly installed on the upper surface of the two connecting cross braces, and a hook (45) is fixedly connected to the output shaft of the driving motor (44).

4. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 1 is characterized in that: The hoisting mechanism (5) comprises a hoisting ring mounted on the conveying mechanism (4) and a hoisting rod (51) fixedly connected to the bottom end of the hoisting ring, two cross-shaped connecting plates (52) symmetrical in upper and lower directions are fixedly connected to the circumferential surface of the hoisting rod (51), a rectangular bottom plate (53) is rotatably connected to the bottom end of the hoisting rod (51), a plurality of evenly distributed through holes are provided on the upper surface of the rectangular bottom plate (53) for facilitating the shot blasting to fall downwards and be recovered, an inner gear ring (54) is fixedly connected to the upper surface of the rectangular bottom plate (53), and a plurality of adjustment arc plates (55) distributed in a circumferential array are fixedly connected to the outer circumferential surface of the inner gear ring (54).

5. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 4 is characterized in that: The inner gear ring (54) is coaxial with the suspension rod (51), and the inner gear ring (54) is meshed with the transmission gear (75). The left and right sides of the rear end of the rectangular bottom plate (53) are provided with grooves to enable the rectangular bottom plate (53) to smoothly enter the interior of the box body (1). The upper surface of the adjusting arc plate (55) is gradually inclined upward along the rotation direction. The inclined surface of the adjusting arc plate (55) is slidably matched with the lower surface of the adjusting ring (734) at the bottom. A plane is provided at a distance after the highest inclination point of the upper surface of the adjusting arc plate (55).

6. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 4 is characterized in that: The adjustment mechanism (6) comprises a support vertical plate (63) fixedly connected to the upper surface of the rectangular bottom plate (53); a plurality of mounting seats (61) evenly distributed in the up-down direction are fixedly connected to one side of the support vertical plate (63) close to the center of the suspension rod (51); an adjustment block (62) is elastically hinged on the mounting seat (61); one end of the adjustment block (62) close to the center of the suspension rod (51) is arranged at a right angle and matches with a groove on the adjustment ring (734); the elastic force between the adjustment block (62) and the mounting seat (61) is greater than the static friction between the casting and the support plate (733).

7. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 1 is characterized in that: The driving member (71) comprises a transmission box (713) fixedly connected to the connecting shaft (72); the upper surface of the transmission box (713) is rotatably connected to the transmission shaft (712); a linkage shaft (714) is rotatably connected to a surface of the transmission box (713) close to the placement ring (732); and the top end of the transmission shaft (712) is fixedly connected to a linkage gear (711).

8. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 7, characterized in that: The bottom end of the transmission shaft (712) penetrates into the interior of the transmission box (713), and one end of the linkage shaft (714) away from the placement ring (732) penetrates into the interior of the transmission box (713) and is connected to the bottom end of the transmission shaft (712) through a bevel gear transmission.

9. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 7, characterized in that: The limiting member (74) comprises two driven gears (741) rotatably connected to the circumferential surface of the connecting shaft (72) and distributed up and down at positions corresponding to the linkage gears (711); the driven gears (741) are meshed with their corresponding linkage gears (711); the upper surface of each driven gear (741) is fixedly connected to a bearing seat (742); and a limiting pressure plate (743) is elastically hinged on the bearing seat (742).

10. The post-processing device for silica sol investment casting of high-precision automobile castings according to claim 9, characterized in that: The bearing seat (742) is sleeved on the circumferential surface of the connecting shaft (72) and is rotatably connected to the connecting shaft (72). In a normal state, the limiting pressure plate (743) and the placement ring (732) are arranged parallel to each other and deviate from the top of the corresponding placement ring (732).

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