A tiltable gravity casting device

Abstract

The present invention belongs to the technical field of gravity casting, specifically a tiltable gravity casting device, comprising a base, a transmission shaft, a tilt adjustment part and a bottom plate fixed to the base, and a casting platform rotatably connected to the top of the transmission shaft via a universal ball; the tilt adjustment part is arranged between the casting platform and the bottom plate, and is used to control the regular tilting of the casting platform; the tilt adjustment part comprises a slope block arranged at the bottom of the casting platform, and a pressure block corresponding to the slope block; the tilting of the casting platform can be completed by sliding cooperation between the slope block and the pressure block fixed in relative position, and the position of the pressure block can be adjusted in real time during the rotation of the casting platform, which can correspond to changing the tilt angle of the casting platform, changing the position of the pressure block in real time, and correspondingly changing the height difference between the pressure block and the slope block, thereby achieving the effect of changing the tilt angle of the casting platform during the rotation of the casting platform without causing the problem of stability imbalance.

Description

Technical Field

[0001] The invention belongs to the technical field of gravity casting, in particular to a tiltable gravity casting device. Background Art

[0002] Common specialty casting methods include lost foam casting, metal mold casting, pressure casting, low-pressure casting, differential pressure casting, vacuum suction casting, squeeze casting, and centrifugal casting. Ion casting is primarily used for casting tubular or annular parts. Lost foam casting and metal mold casting are collectively referred to as gravity casting. During gravity casting, complex parts often require the mold to be tilted and flipped.

[0003] A Chinese patent with publication number CN117718456B discloses a multifunctional special casting platform and its working method, which includes a base, a casting table, three adjustment components, a drive mechanism and a controller; the adjustment component is rotatably mounted on the base, the drive end at the top of the adjustment component is hinged to the casting table, and the hinge positions of the three adjustment components are equidistantly distributed along the circumferential direction of the casting table; the drive mechanism is connected to the transmission end of the adjustment component; the controller is suitable for controlling the drive mechanism to synchronously drive each adjustment component to drive the casting table to perform centrifugal casting or gravity casting according to instructions. The beneficial effects of this application: the controller controls the movement mode of the adjustment component, so that the casting table can continuously rotate horizontally in a circular motion to realize the centrifugal casting process, and the multi-directional tilting of the casting table can realize the flipping process of gravity casting. This application can integrate the functions of centrifugal casting and gravity casting, thereby reducing costs while adapting to a wider range of actual processing needs.

[0004] In the current existing technology, since the gravity casting device in the existing technology needs to use a controller to control the adjustment component to perform corresponding deformation when performing multi-directional tilting to achieve multi-directional tilting of the casting device, in this case, firstly, the adjustment component in the above-mentioned existing technology is directly connected to the casting platform and the bottom drive module, which has stability problems. Secondly, the adjustment component in the above-mentioned existing technology can only deflect in one direction after being driven. If the adjustment component is controlled by the controller to deform during the rotation of the casting platform, it will not only be slow but also sudden eccentricity, which may cause instability.

[0005] To this end, the present invention provides a tiltable gravity casting device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a tiltable gravity casting device according to the present invention comprises:

[0008] A base, and a bottom plate fixed to the base;

[0009] A transmission shaft and a casting platform rotatably connected to the top of the transmission shaft via a universal ball joint;

[0010] The tilt adjustment part is arranged between the casting platform and the bottom plate, and is used to control the regular tilting of the casting platform;

[0011] The tilt adjustment unit includes:

[0012] A slope block is arranged at the bottom of the casting platform, and a pressure block corresponds to the slope block; the casting platform is driven to rotate by a transmission shaft, the slope block and the pressure block are in regular contact, and the pressure block applies pressure to the slope block, causing the slope block and the casting platform to tilt.

[0013] Preferably, a support plate is provided on the top of the base plate, and the support plate and the base plate are fixedly connected via an axis, the support plate and the transmission shaft are arranged coaxially, a balancing module is provided on the support plate, and the balancing module is used to provide buffering for the tilting casting platform.

[0014] Preferably, the tilt adjustment unit further includes:

[0015] A driving gear fixedly connected to the upper part of the transmission shaft;

[0016] A toothed disc overlapped on the support plate;

[0017] The pinion located between the driving gear and the toothed disc;

[0018] The toothed disc passes through a clearance hole provided in the center of the supporting plate, and the pinion is engaged with the driving gear and the toothed disc; a bracket is fixedly connected to the toothed disc, and the pressing block is fixedly connected to the bracket.

[0019] Preferably, four pinions are provided between the toothed disc and the driving gear, and the four pinions are arranged in a circular array. A connecting plate is provided at the bottom of the four pinions, the pinions are rotatably connected to the connecting plate, and the transmission shaft passes through the center of the connecting plate.

[0020] Preferably, the balancing module includes a slider, a vertical rod, and a lateral fixed plate; the slider is slidably engaged with the bottom surface of the casting platform, the vertical rod is fixed to the bottom of the slider, and the lateral fixed plate is fixed to the support plate. Cross bars are fixed on both sides of the vertical rod, and the cross bars are slidably engaged with the waist-round grooves provided on the lateral fixed plates; a fixed axis parallel to the slider is fixed to the bottom of the lateral fixed plate, and the cross bar is slidably engaged with the fixed axis, a spring is sleeved on the fixed axis, and the two ends of the spring are respectively fixed to the bottom of the cross bar and the lateral fixed plate.

[0021] Preferably, an annular groove corresponding to the slider is provided on the bottom surface of the casting platform, and a conductive ring is provided in the annular groove, and a conductive sheet is provided correspondingly on the top of the slider; when the casting platform is driven to stop by the transmission shaft, the conductive sheet on the top of the slider contacts the conductive ring inside the annular groove under the action of the spring, and the detection circuit is unobstructed; when the spring fails, the conductive sheet does not contact the circular conductive ring, the detection circuit is disconnected, and an alarm is generated.

[0022] Preferably, a through groove is opened on the support plate corresponding to the vertical pole, and the vertical pole is slidably matched with the through groove, the bottom surface of the support plate is fixedly connected to the limit rod, and the limit rod is slidably connected to the adjustment unit, and the adjustment unit is used to adjust the relative position of the pressure block and the slope block.

[0023] Preferably, the adjustment unit includes an extrusion block, a bevel is provided at the end of the extrusion block, and the bevel is slidably matched with the bottom surface of the gear disk; a rack is fixed laterally to the tail of the extrusion block, and the rack is meshed with a transmission gear, and the extrusion blocks and racks are provided in four groups at the bottom of the support plate and arranged in a circular array.

[0024] Preferably, a fixing frame is fixed on the bottom plate, a disc is sleeved on the transmission shaft, and the bottom of the disc is overlapped on the top of the fixing frame through a sleeve, and the transmission gear is fixed on the top of the disc.

[0025] Preferably, a limiting ring is fixed to the bottom of the transmission shaft, and the limiting ring is engaged with the fixing frame; a sphere is fixed to the top of the transmission shaft, and the casting platform is rotatably connected to the top of the transmission shaft through the sphere.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The tiltable gravity casting device described in the present invention can complete the tilting of the casting platform through the sliding cooperation between the slope block and the pressure block fixed in a relative position, and the position of the pressure block can be adjusted in real time during the rotation of the casting platform, which can correspond to the change of the tilting angle of the casting platform and the position of the pressure block in real time. The height difference between the pressure block and the slope block can be changed accordingly, thereby achieving the effect of changing the tilting angle of the casting platform during the rotation of the casting platform without causing the problem of stability imbalance.

[0028] 2. The tiltable gravity casting device described in the present invention uses a transmission shaft and a planetary gear structure to enable the pressure block to revolve around the transmission shaft driven by the gear disk, and the casting platform rotates under the drive shaft and the elastic connecting rod. The slope block at the bottom of the casting platform also revolves around the transmission shaft, but the revolution direction of the slope block is opposite to the revolution direction of the pressure block, so that the contact position between the slope block and the pressure block changes at any time, which means that the tilting direction of the casting platform also changes at any time, thereby realizing multi-directional tilting of the casting platform without affecting the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 It is a perspective view of the present invention;

[0031] Figure 2 It is a schematic diagram of the casting platform after tilting in the present invention;

[0032] Figure 3 This is a diagram showing the coordination of the support plate and the tilt adjustment portion of the present invention;

[0033] Figure 4 This is a diagram showing the coordination of the tray, the toothed disc, and the adjustment unit in the present invention;

[0034] Figure 5 This is a diagram showing the coordination of the slope block and the pressing block in the present invention;

[0035] Figure 6 It is a three-dimensional diagram of the adjustment unit and the toothed disc in the present invention;

[0036] Figure 7 is a three-dimensional diagram of the adjustment unit of the present invention;

[0037] Figure 8 is a three-dimensional diagram of the balancing module of the present invention;

[0038] In the figure: 10, casting platform; 101, slope block; 102, annular groove; 11, gravity casting module; 21, support plate; 211, through groove; 212, limit rod; 22, balancing module; 221, slider; 222, vertical pole; 223, lateral fixing plate; 224, fixed axis; 225, cross bar; 226, spring; 23, gear plate; 231, bracket; 24, pressure block; 25, pinion; 26, extrusion block; 261, rack; 27, connecting plate; 28, disc; 281, transmission gear; 31, bottom plate; 32, fixing frame; 40, base; 51, transmission shaft; 52, sphere; 53, driving gear; 54, limit ring. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] like Figures 1 to 8As shown, a tiltable gravity casting device described in an embodiment of the present invention includes a base 40, a transmission shaft 51, a tilt adjustment part and a bottom plate 31 fixed to the base 40, and a casting platform 10 rotatably connected to the top of the transmission shaft 51 via a universal ball; the tilt adjustment part is arranged between the casting platform 10 and the bottom plate 31, and is used to control the regular tilting of the casting platform 10; the tilt adjustment part includes a slope block 101 arranged at the bottom of the casting platform 10, and a pressure block 24 corresponding to the slope block 101; the casting platform 10 is driven to rotate by the transmission shaft 51, the slope block 101 is in regular contact with the pressure block 24, and the pressure block 24 applies pressure to the slope block 101, so that the slope block 101 and the casting platform 10 are tilted.

[0041] Since the gravity casting device in the prior art needs to use a controller to control the adjustment component to perform corresponding deformation when performing multi-directional tilting to achieve the multi-directional tilting of the casting device, in this case, firstly, the adjustment component in the above-mentioned prior art is directly connected to the casting platform and the bottom drive module, which has stability problems. Secondly, the adjustment component in the above-mentioned prior art can only deflect in one direction after being driven. If the adjustment component is controlled by the controller to deform during the rotation of the casting platform, the eccentricity will not only be slow but also sudden, which may cause instability.

[0042] In one embodiment of the present invention, the casting platform 10 and the gravity casting module 11 provided on the upper surface of the casting platform 10 are installed on the top of the transmission shaft 51. It should be noted that the casting platform 10 and the transmission shaft 51 are rotatably connected via a universal ball, and a deformable elastic connecting rod (not shown in the figure) is further provided between the transmission shaft 51 and the casting platform 10 for transmitting the power of the transmission shaft 51 to the casting platform 10, so that when the transmission shaft 51 rotates, the casting platform 10 is driven to rotate by the elastic connecting rod. At the same time, in order to allow the gravity casting module 11 and the casting platform 10 to be able to tilt when driven by the transmission shaft 51, a slope block 101 is provided at the bottom of the casting platform 10, and a pressure block 24 is provided under the slope block 101. The position of the pressure block 24 remains relatively fixed. Then, when the slope block 101 rotates with the casting platform 10, the slope block 101 will regularly contact the pressure block 24. When the position of the pressure block 24 is relatively fixed, the slope block 101 will be lifted due to the extrusion effect, and the casting platform 10 will be lifted, but due to the casting platform The center of the casting platform 10 is connected to the transmission shaft 51 by a ball connection. Therefore, when any slope block 101 is lifted, only the corresponding side of the casting platform 10 will tilt upward, while the opposite side of the casting platform 10 will tilt downward. In one embodiment, the tilting of the casting platform 10 can be completed by only relying on the sliding cooperation between the slope block 101 and the relatively fixed pressure block 24, and the position of the pressure block 24 can be adjusted in real time during the rotation of the casting platform 10. It can be understood that the tilting of the slope block 101 and the casting platform 10 is completely dependent on the relative rotation of the slope block 101. The pressing block 24 and the slope block 101 are squeezed, and the height difference between the pressing block 24 and the slope block 101 is a necessary condition for determining the tilting of the casting platform 10. Therefore, changing the height difference between the pressing block 24 and the slope block 101 can correspondingly change the tilting angle of the casting platform 10. In this embodiment, the position of the pressing block 24 is changed in real time, which can correspondingly change the height difference between the pressing block 24 and the slope block 101. Therefore, the effect of changing the tilting angle of the casting platform 10 can be achieved during the rotation of the casting platform 10 without causing the problem of stability imbalance.

[0043] like Figures 1 to 2 As shown, a support plate 21 is provided on the top of the base plate 31, and the support plate 21 and the base plate 31 are fixedly connected via an axis. The support plate 21 is coaxially arranged with the transmission shaft 51. A balancing module 22 is provided on the support plate 21, and the balancing module 22 is used to provide buffering for the tilted casting platform 10.

[0044] In one embodiment, when the transmission shaft 51 stops, the casting platform 10 will theoretically also stop. After the casting platform 10 stops, it should theoretically be parallel to the bottom plate 31, that is, maintain a horizontal state, so that the gravity casting module 11 arranged on the upper part thereof can be horizontal, which is convenient for taking and releasing. At the same time, after the casting platform 10 rotates with the transmission shaft 51 and returns to a horizontal state, considering that the casting platform 10 and the gravity casting module 11 have a large self-weight, when the state is changed from a tilted state to a horizontal state, the impact or influence on the transmission shaft 51 is large, which reduces the service life of the transmission shaft 51. Therefore, the casting platform 10 needs to be buffered. In this embodiment, a balancing module 22 is provided on the surface of the support plate 21. When the casting platform 10 is changed from a tilted state to a horizontal state, it can be caught by the balancing module 22 and relies on the balancing module 22 to buffer it, thereby reducing the impact on the transmission shaft 51. In addition, it should be noted that in this embodiment, a plurality of balancing modules 22 are provided, and they are arranged in a circular array.

[0045] like Figures 1 to 5 As shown, the tilt adjustment unit also includes:

[0046] A driving gear 53 fixedly connected to the upper portion of the transmission shaft 51;

[0047] A toothed disc 23 overlapped on the support plate 21;

[0048] A pinion 25 located between the driving gear 53 and the toothed disc 23;

[0049] The toothed disc 23 passes through the clearance hole opened in the center of the support plate 21 , and the pinion 25 is engaged with the driving gear 53 and the toothed disc 23 ; a bracket 231 is fixed to the toothed disc 23 , and the pressing block 24 is fixed to the bracket 231 .

[0050] Continuing from the above description, the position of the pressing block 24 is relatively fixed. Therefore, during the rotation of the casting platform 10, the slope block 101 can regularly contact the pressing block 24 with a relatively fixed position, thereby tilting the casting platform 10. However, it is worth noting that since the position of the pressing block 24 is relatively fixed, the position of the sliding cooperation between the pressing block 24 and the slope block 101 is also relatively fixed. That is to say, the tilting direction of the casting platform 10 is fixed. Then, compared with the prior art, the pressing block 24 with a fixed position cannot achieve multi-directional tilting. On this basis, in this embodiment, the driving gear 53 at the top of the transmission shaft 51 is used to drive the pinion 25 and the gear plate 23 to rotate. When the gear plate 23 rotates, it can drive the bracket 231 and the pressing block 24 set on the bracket 231 to rotate. That is to say, in this embodiment, the rotation of the transmission shaft 51 will cause the pressing block 24 to rotate relative to the casting platform 10 in the opposite direction through the planetary gear structure, thereby enabling the casting platform 10 to be tilted in multiple directions.

[0051] It can be understood that, through the transmission shaft 51 and the planetary gear structure, the pressing block 24 can be driven by the toothed disc 23 to revolve around the transmission shaft 51, and the casting platform 10 is driven by the transmission shaft 51 and the elastic connecting rod to rotate. It can be considered that the slope block 101 at the bottom of the casting platform 10 is also revolving around the transmission shaft 51, but the direction of revolution of the slope block 101 is opposite to that of the pressing block 24. For example, the slope block 101 rotates clockwise with the casting platform 10, while the pressing block 24 rotates counterclockwise (e.g., Figure 5 As shown), on this basis, the contact position of the slope block 101 and the pressure block 24 changes at any time, which means that the tilting direction of the casting platform 10 also changes at any time, thereby realizing the multi-directional tilting of the casting platform 10 without affecting the overall stability.

[0052] like Figures 1 to 3 As shown, four pinions 25 are provided between the toothed disc 23 and the driving gear 53, and the four pinions 25 are arranged in a circular array. A connecting plate 27 is provided at the bottom of the four pinions 25. The pinions 25 are rotatably connected to the connecting plate 27, and the transmission shaft 51 passes through the center of the connecting plate 27.

[0053] As mentioned above, the four pinions 25 arranged between the toothed disc 23 and the driving gear 53 are mainly used for transmission, and considering the installation problem, they need to be rotatably connected to the connecting plate 27, and the connecting plate 27 can be fixed to ensure that the position of the pinion 25 is relatively fixed.

[0054] like Figure 1 、 Figure 8 As shown, the balancing module 22 includes a slider 221, a vertical rod 222, and a lateral fixed plate 223; the slider 221 slides in cooperation with the bottom surface of the casting platform 10, the vertical rod 222 is fixed to the bottom of the slider 221, and the lateral fixed plate 223 is fixed to the support plate 21. The two sides of the vertical rod 222 are fixed with cross bars 225, and the cross bars 225 slide in cooperation with the waist-round grooves provided on the lateral fixed plate 223; the bottom of the lateral fixed plate 223 is fixed with a fixed shaft 224 parallel to the slider, and the cross bar 225 slides in cooperation with the fixed shaft 224, and a spring 226 is sleeved on the fixed shaft 224, and the two ends of the spring 226 are respectively fixed to the bottom of the cross bar 225 and the lateral fixed plate 223.

[0055] The purpose of the balancing module 22 described in the above embodiment is to ensure that after the casting platform 10 stops rotating, the impact on the drive shaft 51 is reduced, thereby extending the service life. In this embodiment, the principle of the balancing module 22 is described in detail. In fact, when the casting platform 10 is not rotating, the slider 221 is always tightly attached to the bottom of the casting platform 10 under the action of the spring 226, and multiple balancing modules 22 arranged in a circular array enable the casting platform 10 to remain horizontal. When the casting platform 10 tilts, one side of the casting platform 10 will separate from the balancing module 22, and the opposite side will squeeze the slider 221 downward, causing the spring 226 to accumulate force. During this process, the accumulated force of the spring 226 can help the casting platform 10 to reset.

[0056] like Figures 1 to 5 As shown, the bottom surface of the casting platform 10 is provided with an annular groove 102 corresponding to the slider 221, and a conductive ring is provided in the annular groove 102, and a conductive sheet is provided correspondingly on the top of the slider 221; when the casting platform 10 is driven to stop by the transmission shaft 51, the conductive sheet on the top of the slider 221 contacts the conductive ring inside the annular groove 102 under the action of the spring 226, and the detection circuit is unobstructed. When the spring 226 fails, the conductive sheet is not in contact with the circular conductive ring, the detection circuit is disconnected, and an alarm is generated.

[0057] As mentioned above, the balancing module 22 is provided to help reduce the impact on the transmission shaft 51 when the casting platform 10 returns to the horizontal state from the tilted state. However, the above function is based on the fact that the balancing module 22 is effective. If the balancing module 22 fails, it cannot be ensured that the casting platform 10 can reduce the impact on the transmission shaft 51 when it returns to the horizontal state from the tilted state. It can be understood that when the spring 226 fails, the slider 221 should move downward under the action of its own gravity, so that the top of the slider 221 no longer contacts the annular groove 102 at the bottom of the casting platform 10, and the slider 221 is not in contact with the annular groove 102 at the bottom of the casting platform 10. In the next step, the conductive ring and the conductive sheet are no longer in contact, the circuit is disconnected, and an alarm signal is generated, which means that any balancing module 22 has failed. On the contrary, if all springs 226 are working normally and the slider 221 is always in contact with the casting platform 10, no alarm signal is generated. It is worth noting that the above-mentioned use of the conductive ring and the conductive sheet in contact to make the circuit unobstructed is based on the casting platform 10 returning to the horizontal state from the tilted state. Because when the casting platform 10 is tilted, the conductive ring in the annular groove 102 is bound to separate from the conductive sheet. In this case, the generated alarm signal is a false alarm.

[0058] like Figures 1 to 4 、 Figure 8As shown, a through groove 211 is opened on the support plate 21 corresponding to the vertical rod 222, and the vertical rod 222 slides with the through groove 211. The bottom surface of the support plate 21 is fixedly connected to the limiting rod 212, and the limiting rod 212 is slidably connected to an adjustment unit, which is used to adjust the relative position of the pressure block 24 and the slope block 101.

[0059] like Figures 1 to 4 、 Figures 6 and 7 As shown, the adjustment unit includes an extrusion block 26, an inclined surface is provided at the end of the extrusion block 26, and the inclined surface is slidably matched with the bottom surface of the gear disk 23; a rack 261 is fixedly connected to the rear end of the extrusion block 26, and the rack 261 is meshed with a transmission gear 281. The extrusion blocks 26 and racks 261 are provided in four groups at the bottom of the support plate 21 and are arranged in a circular array.

[0060] like Figures 1 to 2 As shown, a fixing frame 32 is fixed to the bottom plate 31 , a disc 28 is sleeved on the transmission shaft 51 , and the bottom of the disc 28 is overlapped on the top of the fixing frame 32 through a sleeve, and the transmission gear 281 is fixed to the top of the disc 28 .

[0061] As described above, one embodiment describes that the position of the pressing block 24 can be changed so that the height difference between the pressing block 24 and the slope block 101 changes, thereby adjusting the tilting angle of the casting platform 10. In this embodiment, when it is necessary to change the relative position of the pressing block 24 so that the height difference between the pressing block 24 and the slope block 101 changes, the disk 28 is rotated and the transmission gear 281 at the center of the disk 28 is used to make multiple racks 261 slide accordingly. When the racks 261 slide, they can drive the squeeze block 26 to move toward the toothed disk 23, and the inclined surface set at the end of the squeeze block 26 can be aligned with the bottom of the toothed disk 23. The gear disc 23 is slidably engaged and the gear disc 23 is lifted. When the gear disc 23 is lifted, the position of the bracket 231 fixed to its upper part changes accordingly. Similarly, the position of the pressure block 24 arranged on the bracket 231 also changes accordingly, which can be used to change the height difference between the pressure block 24 and the slope block 101. It is worth noting that in this embodiment, multiple extrusion blocks 26 are arranged in an array around the central circumference of the gear disc 23. Therefore, after the rack 261 is driven by the transmission gear 281, the multiple extrusion blocks 26 also move inward synchronously, so that the gear disc 23 can be displaced axially, thereby changing the height difference between the pressure block 24 and the slope block 101.

[0062] like Figures 1 to 2 As shown, the bottom of the transmission shaft 51 is fixed with a limiting ring 54, and the limiting ring 54 is engaged with the fixing frame 32; the top of the transmission shaft 51 is fixed with a sphere 52, and the casting platform 10 is rotatably connected to the top of the transmission shaft 51 through the sphere 52.

[0063] Working principle: The casting platform 10 and the gravity casting module 11 provided on the upper surface of the casting platform 10 are installed on the top of the transmission shaft 51. It should be noted that the casting platform 10 and the transmission shaft 51 are connected in rotation via a universal ball. A deformable elastic connecting rod (not shown in the figure) is also provided between the transmission shaft 51 and the casting platform 10 to transmit the power of the transmission shaft 51 to the casting platform 10, so that when the transmission shaft 51 rotates, the casting platform 10 is driven to rotate by the elastic connecting rod. At the same time, in order to make the gravity casting module 1 1 and the casting platform 10 can be tilted when driven by the transmission shaft 51. A slope block 101 is set at the bottom of the casting platform 10, and a pressure block 24 is set below the slope block 101. The position of the pressure block 24 remains relatively fixed. Then, when the slope block 101 rotates with the casting platform 10, the slope block 101 will regularly contact the pressure block 24. When the position of the pressure block 24 is relatively fixed, the slope block 101 will be lifted due to the extrusion effect, and the casting platform 10 will be lifted. However, due to the center of the casting platform 10, The center of the casting platform 10 is connected to the transmission shaft 51 by a ball connection. Therefore, when any slope block 101 is lifted, only the corresponding side of the casting platform 10 will tilt upward, and the opposite side of the casting platform 10 will tilt downward. In one embodiment, the tilting of the casting platform 10 can be completed by sliding with the slope block 101 and the pressure block 24 fixed in a relatively fixed position, and the position of the pressure block 24 can be adjusted in real time during the rotation of the casting platform 10. It can be understood that the tilting of the slope block 101 and the casting platform 10 is completely dependent on the pressure block 24. The squeezing of the pressing block 24 and the slope block 101, and the height difference between the pressing block 24 and the slope block 101 are necessary conditions for determining the tilting of the casting platform 10. Therefore, changing the height difference between the pressing block 24 and the slope block 101 can correspondingly change the tilting angle of the casting platform 10. In this embodiment, the position of the pressing block 24 is changed in real time, which can correspond to changing the height difference between the pressing block 24 and the slope block 101. Therefore, the effect of changing the tilting angle of the casting platform 10 can be achieved during the rotation of the casting platform 10 without causing the problem of stability imbalance.

[0064] When the transmission shaft 51 stops, the casting platform 10 will theoretically also stop. After the casting platform 10 stops, it should theoretically be parallel to the bottom plate 31, that is, maintain a horizontal state, so that the gravity casting module 11 arranged on the upper part thereof can be level, which is convenient for taking and releasing. At the same time, after the casting platform 10 rotates with the transmission shaft 51 and returns to a horizontal state, considering that the casting platform 10 and the gravity casting module 11 have a large deadweight, when the tilted state is changed to a horizontal state, the impact or influence on the transmission shaft 51 is large, which reduces the service life of the transmission shaft 51. Therefore, the casting platform 10 needs to be buffered. In this embodiment, a balancing module 22 is provided on the surface of the support plate 21. When the casting platform 10 is changed from a tilted state to a horizontal state, it can be caught by the balancing module 22 and relies on the balancing module 22 to buffer it, thereby reducing the impact on the transmission shaft 51. In addition, it should be noted that in this embodiment, a plurality of balancing modules 22 are provided, and they are arranged in a circular array. The position of the pressing block 24 is relatively fixed, so during the rotation of the casting platform 10, the slope block 101 can regularly contact the pressing block 24 with a relatively fixed position, thereby tilting the casting platform 10. However, it is worth noting that since the position of the pressing block 24 is relatively fixed, the position of the sliding cooperation between the pressing block 24 and the slope block 101 is also relatively fixed, that is, the tilting direction of the casting platform 10 is fixed. Then, compared with the prior art, the pressing block 24 with a fixed position cannot achieve multi-directional tilting. On this basis, in this embodiment, the driving gear 53 at the top of the transmission shaft 51 is used to drive the pinion 25 and the gear plate 23 to rotate, and when the gear plate 23 rotates, it can drive the bracket 231 and the pressing block 24 set on the bracket 231 to rotate. That is to say, in this embodiment, the rotation of the transmission shaft 51 will cause the pressing block 24 to rotate relative to the casting platform 10 in the opposite direction through the planetary gear structure, thereby enabling the casting platform 10 to be tilted in multiple directions.

[0065] It can be understood that, through the transmission shaft 51 and the planetary gear structure, the pressure block 24 can revolve around the transmission shaft 51 driven by the toothed disc 23, and the casting platform 10 rotates on its own driven by the transmission shaft 51 and the elastic connecting rod. It can be considered that the slope block 101 at the bottom of the casting platform 10 is also revolving around the transmission shaft 51, but the revolution direction of the slope block 101 is opposite to the revolution direction of the pressure block 24. For example, the slope block 101 rotates clockwise with the casting platform 10, while the pressure block 24 rotates counterclockwise. On this basis, the contact position of the slope block 101 and the pressure block 24 changes at any time, which means that the tilting direction of the casting platform 10 also changes at any time, thereby realizing multi-directional tilting of the casting platform 10 without affecting the overall stability.

[0066] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tiltable gravity casting device, characterized in that: include: A base (40), and a bottom plate (31) fixedly connected to the base (40); A transmission shaft (51), and a casting platform (10) rotatably connected to the top of the transmission shaft (51) via a universal ball; A tilt adjustment portion is provided between the casting platform (10) and the bottom plate (31) and is used to control the regular tilting of the casting platform (10); The tilt adjustment unit includes: A slope block (101) is provided at the bottom of the casting platform (10), and a pressure block (24) corresponding to the slope block (101); the casting platform (10) is driven to rotate by a transmission shaft (51), the slope block (101) and the pressure block (24) are in regular contact, and the pressure block (24) applies pressure to the slope block (101), so that the slope block (101) and the casting platform (10) are tilted; The casting platform (10) and the transmission shaft (51) are rotatably connected via a universal ball joint. An elastic connecting rod is further provided between the transmission shaft (51) and the casting platform (10) for transmitting power from the transmission shaft (51) to the casting platform (10). The tilt adjustment unit further includes: A driving gear (53) fixedly connected to the upper portion of the transmission shaft (51); A toothed disc (23) overlapped on the support plate (21); A pinion (25) located between the driving gear (53) and the toothed disc (23); The toothed disc (23) passes through a clearance hole provided in the center of the support plate (21), and the pinion (25) is engaged with the driving gear (53) and the toothed disc (23); a bracket (231) is fixedly connected to the toothed disc (23), and the pressing block (24) is fixedly connected to the bracket (231).

2. The tiltable gravity casting device according to claim 1, characterized in that: A supporting plate (21) is provided on the top of the base plate (31), and the supporting plate (21) and the base plate (31) are fixedly connected via an axis. The supporting plate (21) and the transmission shaft (51) are arranged coaxially. A balancing module (22) is provided on the supporting plate (21), and the balancing module (22) is used to provide a buffer for the tilting casting platform (10).

3. The tiltable gravity casting device according to claim 2, characterized in that: Four pinions (25) are provided between the toothed disc (23) and the driving gear (53), and the four pinions (25) are arranged in a circumferential array. A connecting plate (27) is provided at the bottom of the four pinions (25). The pinions (25) are rotatably connected to the connecting plate (27), and the transmission shaft (51) passes through the center of the connecting plate (27).

4. The tiltable gravity casting device according to claim 3, characterized in that: The balancing module (22) includes a slider (221), a vertical rod (222), and a lateral fixed plate (223); the slider (221) is slidably engaged with the bottom surface of the casting platform (10), the vertical rod (222) is fixed to the bottom of the slider (221), the lateral fixed plate (223) is fixed to the support plate (21), and cross bars (225) are fixed on both sides of the vertical rod (222), and the cross bars (225) are slidably engaged with the waist-round grooves provided on the lateral fixed plate (223); a fixed shaft (224) parallel to the slider is fixed to the bottom of the lateral fixed plate (223), and the cross bars (225) are slidably engaged with the fixed shaft (224), a spring (226) is sleeved on the fixed shaft (224), and the two ends of the spring (226) are respectively fixed to the bottom of the cross bar (225) and the lateral fixed plate (223).

5. The tiltable gravity casting device according to claim 4, characterized in that: The bottom surface of the casting platform (10) is provided with an annular groove (102) corresponding to the slider (221), and a conductive ring is provided in the annular groove (102), and a conductive sheet is correspondingly provided on the top of the slider (221); when the casting platform (10) is driven to stop by the transmission shaft (51), the conductive sheet on the top of the slider (221) contacts the conductive ring inside the annular groove (102) under the action of the spring (226), and the detection circuit is unobstructed; when the spring (226) fails, the conductive sheet does not contact the circular conductive ring, the detection circuit is disconnected, and an alarm is generated.

6. The tiltable gravity casting device according to claim 5, characterized in that: A through slot (211) is provided on the support plate (21) corresponding to the vertical rod (222), and the vertical rod (222) is slidably engaged with the through slot (211). A limiting rod (212) is fixedly connected to the bottom surface of the support plate (21), and an adjustment unit is slidably connected to the limiting rod (212). The adjustment unit is used to adjust the relative position of the pressing block (24) and the slope block (101).

7. The tiltable gravity casting device according to claim 6, characterized in that: The adjustment unit comprises an extrusion block (26), an inclined surface is provided at the end of the extrusion block (26), and the inclined surface is slidably matched with the bottom surface of the toothed disc (23); a rack (261) is fixedly connected to the rear end of the extrusion block (26), and the rack (261) is meshedly connected to a transmission gear (281); the extrusion blocks (26) and the rack (261) are provided in four groups at the bottom of the support plate (21), and are arranged in a circular array.

8. The tiltable gravity casting device according to claim 7, characterized in that: A fixing frame (32) is fixedly connected to the bottom plate (31), a disc (28) is sleeved on the transmission shaft (51), and the bottom of the disc (28) is overlapped on the top of the fixing frame (32) through a sleeve, and the transmission gear (281) is fixedly connected to the top of the disc (28).

9. The tiltable gravity casting device according to claim 8, characterized in that: The bottom of the transmission shaft (51) is fixedly connected to a limiting ring (54), and the limiting ring (54) is engaged with the fixing frame (32); the top of the transmission shaft (51) is fixedly connected to a sphere (52), and the casting platform (10) is rotatably connected to the top of the transmission shaft (51) via the sphere (52).

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