A vibrating casting apparatus

Abstract

The application relates to the technical field of vibration casting, in particular to a vibration casting equipment, which comprises a base, the base is bolted to a bottom surface, the top surface of the base is provided with a plurality of supporting columns and is installed with rubber springs; the top end of the rubber spring is installed with a platform, the bottom of the platform is provided with a transverse exciter, a longitudinal exciter and a vertical exciter, the vibration casting equipment is provided with driving motors, pull rods and lock hooks, the driving motors are separated from the vibration platform, the influence of the vibration casting equipment on the driving motors is reduced, the platform is provided with a sliding groove through the lock hooks, the lock hooks can rotate along the hinge points of the pull rods, the positions of the lock hooks relative to the platform surface can be changed under different rotating angles, the lock hooks are stretched out of the platform surface to clamp the mold box when the lock hooks are in contact with the mold box, the lock hooks are recovered to the platform when the lock hooks are not clamping, the mold box is convenient to mount and dismount on the vibration casting equipment, and the lock hooks and the mold box are protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vibration casting, in particular to a vibration casting equipment. BACKGROUND

[0002] Adding a certain vibration field in the filling and solidification stage of the casting process can significantly improve the mechanical properties of the casting, and applying one-dimensional vibration, especially vertical vibration in the gravity direction, can effectively improve the casting stress, grain refinement, solidification shrinkage, slag and gas removal, etc., can eliminate the internal residual stress of the casting, improve the tensile properties of the casting, and the influence of vibration on the elongation of the casting is greater than that on the tensile strength, so as to achieve the purpose of improving the comprehensive mechanical properties of the casting.

[0003] Vibration casting is to add a certain vibration field in the filling and solidification stage of the casting process, so as to significantly improve the mechanical properties of the casting. The vibration technology in the casting process of metal materials is introduced in detail in the article published by Tan Min in China Science and Technology Periodical Database Industry A, No. 6, 2022, pages 215-217. At present, there are many vibration methods that can be applied to the casting process. Generally, these vibration methods can be divided into three types, namely mechanical vibration, electromagnetic vibration and ultrasonic vibration. However, the electromagnetic vibration and ultrasonic vibration equipment are relatively expensive, and the application technology of these two vibration technologies in casting production is not mature. The mechanical vibration casting has been applied in casting production for a long time, and the technology is relatively mature. The equipment mainly uses a vibration platform, which is simple and has a lower manufacturing cost than the other two, so the mechanical vibration casting technology is more easily used in casting production.

[0004] In the vibration casting process, in order to prevent the relative displacement of the mold box relative to the platform from causing the mold box to deviate and affecting the vibration effect of the vibration platform or causing the mold box to separate from the platform and cause production accidents, a cylinder driving connecting rod mechanism is currently used to apply a pressure on the upper surface of the mold box to fix and clamp the mold box and the platform. Since the cylinder is fixedly connected with the platform and the connecting rod mechanism is arranged above the platform, the connecting rod mechanism and the mold box are easily damaged due to collision with the connecting rod mechanism caused by improper operation when the mold box is loaded and unloaded. In addition, since the cylinder needs to be pressurized to clamp the mold box during vibration, and the platform is in a vibrating state, the cylinder is vibrated. The cylinder is easily damaged by the vibration force and the reaction force of the mold box, which greatly affects the service life of the cylinder.

[0005] Therefore, a vibration casting equipment is provided, which separates the cylinder from the platform and enables the clamping device to retreat to the bottom of the platform in the unclamped state, thereby avoiding collision between the mold box and the clamping device during loading and unloading of the mold box and damage to the cylinder during vibration of the vibration casting equipment. SUMMARY

[0006] The present application aims to provide a vibrating casting equipment, by replacing the driving motor with a cylinder driving clamping device and separating the driving motor from the platform, the clamping device can be withdrawn to the bottom of the platform in the unclamped state, to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] A vibrating casting equipment, comprising: a base placed on the ground and fixedly installed on the ground through foundation bolts, the top surface of the base is provided with a plurality of support columns, commonly four support columns, the number of support columns can be increased according to the size of the platform and the casting requirements, including 6 or 8, etc., but the number of support columns is even and symmetrically distributed, the upper end of the support column is provided with a counterbore and a cylindrical boss is arranged at the center of the counterbore and cooperates with a rubber spring, the rubber spring is also provided with a counterbore or a through hole, which is inserted into the counterbore of the support column during installation, the rubber spring is more suitable for low-frequency vibration environment than the rigid spring, and the noise during the damping process of the rubber spring is smaller than that of the rigid spring, compared with the air damping spring, although the air damping spring can also be suitable for low-frequency vibration and has better noise reduction capacity than the rigid spring, but the spring stiffness is small, and when the platform is unbalanced under stress during lifting and vibration, it is easy to produce deflection, and the air damping spring cannot be in contact with sharp objects, which will be damaged when the temperature is too high, and it also needs to prevent functional failure caused by rubber aging, therefore, the rubber spring is adopted as the damping device of the platform in the present application; the platform upper surface can be used to place a mold box used for casting, the platform bottom is arranged with a reinforcing rib plate and a mounting plate for mounting a transverse exciter, a longitudinal exciter and a vertical exciter, the transverse exciter and the longitudinal exciter are respectively mounted on the horizontal bisector of the platform and symmetrically distributed, the axis is perpendicular to the platform, the vertical exciter is symmetrically arranged and mounted below the platform, and the axis is parallel to the platform, the transverse exciter, the longitudinal exciter and the vertical exciter can be operated independently or simultaneously, the transverse exciter, the longitudinal exciter and the vertical exciter can drive the platform to vibrate in the transverse, longitudinal and vertical directions respectively, and the mold box can vibrate under the vibration of the platform.

[0009] The platform bottom is further provided with a driving motor, a transmission unit, a lock hook, a reset unit and a turnover unit, the driving unit can drive the transmission unit, the transmission unit drives the lock hook to clamp and fix the mold box, the clamping unit comprises a speed reducer, a winding wheel, a connecting block, a connecting rod, a pull rod one, a pull rod two and a lock hook, the lock hook is below the platform table in the unclamped state, compared with the pneumatic element and the hydraulic element, the driving motor is easy to be damaged or fail in the high-temperature and high-dust environment of casting, therefore, the motor is preferably used as the driving part, but the pneumatic motor or the hydraulic motor can also be used, the base is provided with a mounting hole for mounting the driving motor, the driving motor is bolted on the base, the driving motor and the speed reducer are connected by bolts, the winding wheel is installed on the side surface of the speed reducer, the steel wire rope is arranged on the winding wheel, the driving motor can control the winding wheel to wind and send the steel wire rope, the speed reduction ratio of the speed reducer is selected according to the actual production requirement to match the corresponding clamping force, the pull rod one and the pull rod two are symmetrically distributed on the horizontal equal division line of the platform, the pull rod one and the pull rod two can be equal in length or not, the selection is made according to the platform and the mold box to be clamped, when the mold box is rectangular and the platform is also rectangular, the pull rod one and the pull rod two are preferably not equal in length, when the mold box is square and the platform is square, the pull rod one and the pull rod two are preferably equal in length, when the mold box is rectangular and the platform is square, the pull rod one and the pull rod two are preferably not equal in length, when the mold box is square and the platform is rectangular, the pull rod one and the pull rod two are preferably equal in length, one end of the pull rod one or the pull rod two connected with the lock hook is provided with a mounting hole, one end of the lock hook is also provided with a mounting hole, the pull rod one or the pull rod two is hinged with the lock hook, the lock hook can rotate around the hinge pin axis to rotate to the platform table to act when the mold box is clamped, one end of the pull rod one and the pull rod two away from the lock hook is hinged with the connecting rod, one end of the connecting rod away from the pull rod one or the pull rod two is hinged with the connecting block, the connecting block is provided with a connecting hole at the bottom, one end of the steel wire rope away from the winding wheel is fixedly connected with the connecting block through the connecting hole, the steel wire rope is folded back to the bottom steel wire rope after passing through the connecting hole below the connecting plate and is connected by crimping, the driving unit and the clamping unit are connected through the steel wire rope to separate the driving unit from the vibration platform, the weight of the platform is reduced, and the steel wire keeps vertical and tight state without vibration with the platform in the vibration process of the platform, so that the driving unit is not damaged or failed due to the vibration of the platform.

[0010] Preferably, the decelerator is a worm gear decelerator, the driving motor and the decelerator are positioned and matched through flanges and connected through bolts, the driving motor output shaft is fixedly connected with the worm in the worm gear decelerator, and the decelerator output shaft is fixedly installed with the winding wheel through key matching. The worm gear decelerator has self-locking capability. When the clamping unit clamps the mold box, the driving motor can be stopped, the clamping unit remains in the clamping state by using the self-locking capability of the decelerator, and the clamping motor does not need to be in a load state for a long time, which is beneficial to protecting the motor.

[0011] Preferably, the pull rod one and the pull rod two are symmetrically distributed in pairs at a horizontal equal division line of the platform lower part, the pull rod one and the pull rod two are horizontally installed to the platform bottom, and the axes of the pressure rod one and the pressure rod two respectively coincide with a platform transverse equal division surface or a longitudinal equal division surface. Such a layout is beneficial to controlling the platform gravity center on the equal division surface, thereby reducing the vibration influence caused by structural distribution. Meanwhile, the clamping forces borne by the mold box are balanced with each other during clamping. The axes of the pull rod one and the pressure rod two are parallel to the platform surface. Through holes and mounting holes are formed in the platform bottom mounting plate for mounting linear bearings. The linear bearings are fixedly connected with the platform through bolts. The axes of the linear bearings are parallel to the platform surface. The pressure rod one and the pressure rod two pass through the linear bearings and are connected with the pull rod one end away from the platform center. The pull rod one and the pull rod two can move linearly along the axes thereof. The pull rod one and the pull rod two can be supported by the linear bearings to move linearly along the axes thereof.

[0012] Preferably, one end of each of the pull rod one and the pull rod two close to the lock hook is sleeved with a pressure spring for resetting. One end of the pressure spring is connected with the platform, and the other end is connected with the pull rod one or the pull rod two close to the lock hook end. The two contact surfaces serve as spring two end limit positions. When the winding machine winds the steel wire rope, the pull rod one and the pull rod two approach the platform center. The pressure spring is pressed and deformed by the pressure of the pull rod one or the pull rod two close to the lock hook end. At this time, the spring generates elastic force. When the winding wheel unwinds the steel wire rope, the pull rod one and the pull rod two move away from the platform center along the axes under the thrust of the pressure spring. Through cooperation of the pressure spring and the driving unit, the pull rod one and the pull rod two can complete linear back-and-forth movement.

[0013] Preferably, the platform table is provided with a sliding groove, and the unperforated end of the locking hook can pass through the through hole to reach the platform table. When the locking hook clamps the mold box, the end of the locking hook in contact with the mold box is above the platform table. Compared with the locking hook extending from the side of the platform to reach the platform table, the locking hook structure does not need to be large and the stroke is short when the locking hook extends upward from below the platform table. When a small box is clamped on a large platform, the locking hook needs to have a long stroke when clamped from the side, so a locking hook with a long cantilever length needs to be selected. During clamping and vibration, the locking hook is easy to swing, which affects the clamping effect. The locking hook extends upward from below the platform table, and the locking hook structure does not need to be changed when the size of the mold box and the platform differs greatly. The clamping effect is more stable than that of the locking hook clamped from the side of the platform. During clamping, due to the variety of mold boxes, some mold boxes are provided with flange tables at the bottom, and some mold boxes are not provided with flange tables. The locking hook not only needs to constrain the mold box in the clamping direction, but also needs to constrain the mold box in the vertical direction during clamping. Therefore, the end of the locking hook in contact with the mold box is provided with a rubber anti-skid block. After the locking hook is in close contact with the mold box, the mold box is constrained in the vertical direction due to the action of the rubber anti-skid block.

[0014] Preferably, the one end of the hook is provided with a through hole, the one end of the pull rod 1 and the pull rod 2 away from the connecting rod is provided with a through hole with the same size as the through hole of the hook, the hook is hinged with the pressure rod 1 or the pressure rod 2 through the through hole and the hook can rotate along the axis of the through hole, the hook adopts a symmetrical structure and the symmetry plane coincides with the axis of the pull rod 1 or the pull rod 2, when the hook is installed on the pull rod 1 or the pull rod 2, the hook contact end with the mold box is distributed on both sides of the pull rod, that is, the hook adopts a female hinge structure and the one end of the pull rod 1 and the pull rod 2 away from the center of the platform adopts a male hinge structure, if the pull rod 1 and the pull rod 2 adopt a female hinge structure and the hook adopts a male hinge structure, when the hook contact end with the mold box rotates towards the center of the platform, it will be limited by the structure at the hinge and collide with the pull rod 1 or the pull rod 2, which will limit the rotation angle and make the hook unable to rotate below the platform, the hook contact end with the mold box is distributed on both sides of the pull rod 1 or the pull rod 2, which is more balanced in force than being distributed on one side of the pull rod 1 or the pull rod 2, and the contact area between the hook and the mold box is increased, which is beneficial to the clamping effect; the hook contact end with the mold box is provided with a notch, when the hook rotates, the hook contact end with the mold box can avoid the pull rod 1 or the pull rod 2, so that the hook can be recycled to below the platform by rotating in the unclamped state; the one side of the pull rod 1 and the pull rod 2 connected with the hook is provided with a limiting structure, when the pull rod 1 and the pull rod 2 move towards the center of the platform during clamping, the side of the hook away from the mold box contacts the limiting structure, after the contact end of the hook with the mold box is stressed, the rotation of the hook is limited due to the action of the limiting structure on the side of the hook away from the mold box, and the clamping force is transmitted to the pull rod to achieve the clamping effect, the pull rod 1 and the pull rod 2 and the hook are both provided with a tension spring limiting the rotation angle of the hook along the axis of the through hole, and the tension spring can be used to realize the rotating action of the hook, one end of the tension spring is pulled and connected to the pull rod 1 or the pull rod 2 and the other end is pulled and connected to the hook, and the axis of the tension spring is parallel to the rotation plane of the hook, since the hook is below the platform when it is not clamped, the hook contact end with the mold box needs to stretch out of the platform and contact the mold box when it is clamped, therefore, the tension spring mounting hole is arranged on the side of the symmetry plane of the hook away from the hook contact end with the mold box, and the tension spring mounting hole is also arranged on the upper side of the one end of the pull rod 1 and the pull rod 2 away from the center of the platform, the tension spring is pulled and connected between the hook and the pull rod 1 or the pull rod 2 through the hook mounting hole and the pull rod 1 or the pull rod 2 mounting hole, when the pull rod 1 or the pull rod 2 moves away from the center of the platform, the side of the hook away from the contact end of the mold box is limited by the platform and rotates around the hinge point, at this time, the tension spring is pulled to generate tension, when the pull rod 1 or the pull rod 2 moves towards the center of the platform, the side of the hook away from the contact end of the mold box is released from the limitation of the platform, the hook rotates around the hinge point under the action of the tension of the tension spring, at this time, the contact end of the hook with the mold box stretches out of the platform from below the platform, and the side of the hook away from the mold box contacts the limiting structure after the hook contacts the mold box; under the action of the limiting structure of the pull rod 1 or the pull rod 2 and the tension spring, the rotation angle range of the hook along the axis of the through hole is limited to 90°.

[0015] Preferably, the connecting block is a symmetrical structure, the connecting block is uniformly distributed with hinge structures around, the hinge structure axes are in the same plane, four guide rods are uniformly arranged below the platform, the connecting block is provided with through holes matched with the guide rods, the connecting block is slidingly connected on the guide rods and is constrained by the guide rods to move in the vertical direction of the platform and cannot rotate; the hinge structures around the connecting block are all hinged with the far ends of the connecting rods from the first pull rod or the second pull rod, the connecting block pulls the connecting rod when moving downward along the vertical direction of the platform, the connecting rod drives the first pull rod and the second pull rod to move linearly along the axes of the first pull rod and the second pull rod after being stressed, and at the same time, the connecting block is constrained from rotating and tilting relative to the center of the platform under the action of the guide rods, so that the hinge joints of the connecting block, the connecting rod, the first pull rod and the second pull rod are not affected by the lateral force, and the structure of the hinge joints is protected.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、The present application sets driving motor, first pull rod, second pull rod and lock hook, driving motor is separated from vibration platform installation, driving motor and clamping device are flexibly connected through steel wire rope, the influence of vibration of vibrating casting equipment on driving motor is reduced, the platform is provided with sliding groove through which lock hook can pass, lock hook can rotate along the hinge joint of first pull rod or second pull rod, so that the position of lock hook relative to platform surface can change at different rotation angles, lock hook is stretched out of platform surface to clamp mold box when clamping, lock hook is recovered to the lower part of platform when not clamping, which is convenient for loading and unloading of mold box on vibrating casting equipment and is conducive to protecting lock hook and mold box.

[0018] 2、The present application sets worm gear reducer, worm gear reducer can be self-locked, driving motor can be stopped when clamping, which avoids high temperature of driving motor caused by long time operation and reduces energy consumption required by vibrating casting equipment when clamping mold box;

[0019] 3、The present application sets transmission unit and lock hook, lock hooks are symmetrically distributed on horizontal bisector of platform, which can clamp and constrain mold box on platform in horizontal and vertical directions, rubber anti-skid blocks are arranged on the contact end of lock hook and mold box, which can limit displacement of mold box in vertical direction when clamping, so that the clamping of vibrating platform on mold box is more stable and safe, and the symmetric distribution of lock hooks on platform can also assist operator to center mold box and platform, which reduces the influence of platform vibration caused by offset of mold box on platform, so that the vibration state of vibrating casting equipment during operation is more stable, which is conducive to vibrating casting effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure diagram when the vibrating casting equipment of the present application clamps mold box;

[0021] Figure 2The schematic diagram of the unclamping structure of the mold box of the vibrating casting equipment of the present application is shown in the figure;

[0022] Figure 3 The schematic diagram of the platform bottom structure after the platform table is cut of the present application is shown in the figure;

[0023] Figure 4 The local enlarged view of B in the present application Figure 3 ;

[0024] Figure 5 The schematic diagram of the cooperation state structure of the lock hook, the pull rod one and the tension spring when the lock hook is unfolded and retracted of the present application is shown in the figure;

[0025] Figure 6 The schematic diagram of the assembly structure of the driving motor, the speed reducer, the winding wheel and the steel wire rope of the present application is shown in the figure;

[0026] Figure 7 The schematic diagram of the connecting block structure of the present application is shown in the figure;

[0027] Figure 8 The schematic diagram of the lock hook structure of the present application is shown in the figure;

[0028] Figure 9 The schematic diagram of the pull rod one and the pull rod two structure of the present application is shown in the figure.

[0029] In the figure: 1, base; 2, rubber spring; 3, platform; 4, transverse exciter; 5, longitudinal exciter; 6, vertical exciter; 7, guide rod; 8, mold box; 9, driving motor; 10, speed reducer; 11, winding wheel; 12, steel wire rope; 13, connecting block; 14, connecting rod; 15, pull rod one; 16, pull rod two; 17, lock hook; 18, pressure spring; 19, tension spring. DETAILED DESCRIPTION

[0030] Please refer to Figures 1 to 9 , the present application provides a vibrating casting equipment, the technical scheme is as follows:

[0031] The present application takes the ZG42CrM04 cast low-carbon alloy steel cast train coupler as an example, the transverse exciter eccentric block m1=13kg, the longitudinal exciter eccentric block m2=13kg, the vertical exciter eccentric block m3=15kg, the maximum eccentricity is all taken e max =12.4mm, the transverse exciter vibration and the longitudinal exciter vibration parameters are all set to 50Hz, and the vibration amplitude is 0.71mm; the vertical exciter vibration parameter is set to 30Hz, and the vibration amplitude is 0.53mm.

[0032] Example one, referring to Figures 1 to 9 , when the vibrating casting equipment clamps the mold box 8.

[0033] The embodiment box 8 is rectangular structure, the box 8 and the sand mould total weight 150kg.

[0034] When the vibration casting equipment needs to be vibrated, the driving motor 9 is started to drive the reducer 10 in the forward direction, the output end of the reducer 10 drives the winding wheel 11 to send the wire in the forward direction, and when the steel wire rope 12 changes from the stressed state to the relaxed state, the driving motor 9 is stopped, the operator hoists or pushes and slides the box 8 to the platform 3 table and roughly centers, and then the box 8 is roughly centered with the platform 3, the driving motor 9 is started in the reverse direction, the driving motor 9 drives the reducer 10 in the reverse direction, the output end of the reducer 10 drives the winding wheel 11 to collect the wire in the reverse direction, the steel wire rope 12 changes from the relaxed state to the stressed state, the connecting block 13 moves downward along the guide rod 7 under the tension of the steel wire rope 12, the end of the connecting rod 14 hinged with the connecting block 13 moves downward along with the connecting block 13, the end of the connecting rod 14 hinged with the pull rod one 15 or the pull rod two 16 moves to the center of the platform 3, the pull rod one 15 and the pull rod two 16 move along their own axes to the center of the platform 3 under the pulling of the connecting rod 14, the compression spring 18 is compressed to generate compression elastic force under the pressure of the end of the pull rod one 15 or the pull rod two 16 away from the center of the platform 3, the locking hook 17 moves to the center of the platform 3 under the driving of the pull rod one 15 or the pull rod two 16, the locking hook 17 slides on the bottom surface of the platform 3 to the through hole of the platform 3 away from the side in contact with the box 8, the locking hook 17 releases the tension of the tension spring connected with the pull rod one 15 or the pull rod two 16, and the locking hook 17 rotates along the hinge point of the pull rod one 15 or the pull rod two 16 to contact the limiting structure of the end of the pull rod one 15 or the pull rod two 16 away from the center, the end of the locking hook 17 in contact with the box 8 extends above the table surface of the platform 3, and the pull rod one 15 and the pull rod two 16 continue to move to the center of the platform 3 to the end of the locking hook 17 in contact with the box 8 to contact the box 8, at this time, the rubber anti-skid block of the end of the locking hook 17 in contact with the box 8 is deformed under pressure, the box 8 is centered with the center of the platform 3 under the action of the locking hook 17, and the box 8 reaches the center of the platform 3, so that the locking hook 17 cannot move to the center of the platform 3 and is constrained by the box 8, the load of the driving motor 9 increases, the current value increases, the driving motor 9 stops after the load current increases to the set value, and the clamping action is completed.

[0035] When the vibration casting equipment starts to work, the driving motor 9 stops at this time, the speed reducer 10 is self-locked, the steel wire rope 12 is in a state of being pulled tight, the connecting block 13 is subjected to a vertical pulling force and stops moving, the pull rod one 15 and the pull rod two 16 stop moving, the pressure spring 18 is in a state of being compressed, the tension spring 19 is in a state of being relaxed, the locking hook 17 is constrained by the limiting structure of the pull rod one 15 or the pull rod two 16, the contact end rubber anti-skid block of the locking hook 17 is compressed, and the mold box 8 is constrained by the clamping force of the four locking hooks 17 and cannot move in the horizontal direction, the vertical direction and the longitudinal direction; the vertical exciter 6 is started, the platform 3 starts to vibrate vertically under the vibration of the vertical exciter 6, the vibration amplitude and the vibration frequency gradually tend to the vibration parameters of the vertical exciter 6, and when the platform 3 vibrates downward, the mold box 8 will not be separated from the platform 3 due to the small amplitude and the gravity of the mold box 8 and the constraint of the locking hook 17 in the vertical direction, and at this time the steel wire rope 12 still maintains a tight state; the horizontal exciter 4 is started, the platform 3 starts to vibrate horizontally under the vibration of the horizontal exciter 4, the vibration amplitude and the vibration frequency gradually tend to the vibration parameters of the horizontal exciter 4, and when the mold box 8 vibrates horizontally, the mold box 8 cannot move relative to the platform 3 in the horizontal direction due to the constraint of the locking hook 17 arranged in the horizontal direction; the longitudinal exciter 5 is started, the platform 3 starts to vibrate longitudinally under the vibration of the longitudinal exciter 5, the vibration amplitude and the vibration frequency gradually tend to the vibration parameters of the longitudinal exciter 5, and when the mold box 8 vibrates longitudinally, the mold box 8 cannot move relative to the platform 3 in the longitudinal direction due to the constraint of the locking hook 17 arranged in the longitudinal direction.

[0036] When the vibration casting equipment needs to release the clamping of the mold box 8 after the vibration casting is completed, the driving motor 9 is started to drive the reducer 10 to rotate forward, the output end of the reducer 10 drives the take-up wheel 11 to rotate forward to send the wire, and the pressure spring 18 starts to release the spring force acting on the one end of the pull rod one 15 or the pull rod two 16 away from the center of the platform 3. The pull rod one 15 and the pull rod two 16 move along their own axes away from the center of the platform 3 under the action of the spring force of the pressure spring 18. The locking hook 17 is driven by the pull rod one 15 or the pull rod two 16 to move away from the platform 3. At this time, the locking hook 17 is still in contact with the limiting structure of the pull rod one 15 or the pull rod two 16 under the action of the tension spring 19. The contact end of the locking hook 17 with the mold box 8 is still above the table surface of the platform 3. However, the pressure of the rubber anti-skid block of the contact end of the locking hook 17 with the mold box 8 is released at this time, and there is no clamping force around the mold box 8. The pressure spring 18 continues to release the spring pressure until the contact side of the locking hook 17 with the pull rod one 15 or the pull rod two 16 contacts the table surface of the platform 3. The locking hook 17 is constrained by the table surface and starts to rotate along the hinge point of the locking hook 17 with the pull rod one 15 or the pull rod two 16. The contact end of the locking hook 17 with the mold box 8 moves closer to the pull rod one 15 or the pull rod two 16. As the locking hook 17 rotates, the tension spring 19 is deformed under tension to generate tension. The pull rod one 15 and the pull rod two 16 drive the hinge end of the connecting rod 14 and the pull rod one 15 or the pull rod two 16 to move away from the center of the platform 3. The connecting rod 14 drives the connecting block 13 to move upward. The connecting block 13 slides upward along the guide rod 7. The connecting block 13 pulls the steel wire rope 12 upward. When the locking hook 17 is retracted below the platform 3, the driving motor 9 stops, and the steel wire rope 12 changes from a stressed and tight state to a relaxed state. The vibration casting of the casting equipment is completed, and the clamping of the mold box 8 is released. At this time, the driving motor 9 stops, the steel wire rope 12 is in a relaxed state, the connecting block 13 is pulled by the connecting rod 14 but stops moving, the pull rod one 15 and the pull rod two 16 stop moving, the pressure spring 18 is in a relaxed state, the tension spring 19 is in a tension state, and the locking hook 17 is pulled by the tension spring 19 and is below the table surface of the platform 3.

[0037] In the second embodiment, the vibration casting equipment clamps the mold box 8. Figures 1 to 9

[0038] The mold box 8 in this embodiment has a rectangular structure, and the total weight of the mold box 8 and the sand mold is 300 kg.

[0039] ​When the vibration casting equipment needs to be vibrated, the driving motor 9 is started to drive the reducer 10 in the forward direction, the output end of the reducer 10 drives the winding wheel 11 to send the wire in the forward direction, and the driving motor 9 is stopped when the steel wire rope 12 changes from the stressed state to the relaxed state. Since the total weight of the mold box 8 and the sand mold in the embodiment is relatively heavy, a positioning line is arranged on the horizontal equal division line of the platform 3, and a positioning line is also arranged on the horizontal equal division line of the mold box 8. When the mold box 8 is hoisted to the table top of the platform 3, the positioning line of the mold box 8 is aligned with the positioning line of the platform 3, and then the mold box 8 is clamped. Since the positioning line on the platform 3 is scratched and disappears when the platform 3 is slid during loading and unloading, the positioning line on the platform 3 can also be in the form of a slot, which is filled with paint for identification. The slot depth only needs to protect the positioning line from being scratched by the mold box 8. The clamping process and the unclamping process have been described in Embodiment 1, and will not be repeated here.

[0040] Working principle:

[0041] A driving unit and a clamping unit are arranged on the vibration casting platform 3 to clamp the mold box 8 placed on the vibration platform 3. The driving unit includes a driving motor 9, a steel wire rope 12 and a reducer 10, and the clamping unit includes a locking hook 17, a pressure spring 18 and a tension spring 19. The driving unit is driven by the motor and is installed on the base 1 to be isolated from the vibration platform 3. The driving unit is connected to the clamping unit installed on the vibration platform 3 through the steel wire rope 12 to drive the clamping unit to clamp the mold box 8. The platform 3 table top is provided with a through hole through which the locking hook 17 can be withdrawn under the platform 3 table top under the action of the pressure spring 18 and the tension spring 19 when not clamping. When clamping, the locking hook 17 can be extended out of the platform 3 table top and contact one end of the mold box 8 under the action of the driving motor 9 and the tension spring 19, and the clamping device remains clamping through self-locking of the driving unit.

[0042] Other embodiments of the present application also include the technical solutions capable of being implemented formed by the mutual combination of the technical features in the above-mentioned embodiments.

[0043] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of the present disclosure is not limited by the specific embodiments, but is limited by the claims and their equivalents, and all changes within the scope of the claims and their equivalents should be interpreted as included in the present disclosure.

Claims

1. A vibration casting device, comprising: A base (1) is bolted to the ground. The top surface of the base (1) is provided with multiple support columns. Rubber springs (2) for shock absorption are provided on the support columns. A platform (3) is installed on the top of the rubber springs (2). A mold box (8) for casting is placed on the upper surface of the platform (3). A transverse vibrator (4), a longitudinal vibrator (5), and a vertical vibrator (6) are provided at the bottom of the platform (3). The transverse vibrator (4), the longitudinal vibrator (5), and the vertical vibrator (6) can all operate individually or simultaneously. The transverse vibrator (4), the longitudinal vibrator (5), and the vertical vibrator (6) can drive the platform (3) and the mold box (8) placed on the platform (3) to vibrate in the transverse, longitudinal, and vertical directions, respectively. The platform (3) is characterized by having a drive motor (9), a transmission unit, a wire rope (12), a locking hook (17), a reset unit, and a flipping unit at its bottom. The drive motor (9) is fixedly installed on the base (1) and detached from the platform (3). The drive motor (9) is connected to the transmission unit via the wire rope (12). The transmission unit is connected to four locking hooks (17), and the four locking hooks (17) are used to fix the mold box (8) from the four sides. The platform (3) has a sliding groove corresponding to the four locking hooks (17). Each of the four locking hooks (17) is connected to a reset unit that pulls the locking hooks (17) away from the center of the platform (3). Each locking hook (17) is connected to a flipping unit. When the locking hooks (17) are close to each other, the flipping unit drives the locking hooks (17) to extend to the upper side of the platform (3). When the locking hooks (17) are far apart from each other, the flipping unit drives the locking hooks (17) to retract to the lower side of the platform (3). The transmission unit includes a reducer (10), a winding wheel (11), a connecting block (13), a connecting rod (14), a first pull rod (15), and a second pull rod (16). The output end of the drive motor (9) is bolted to the reducer (10). The winding wheel (11) is connected to the side of the reducer (10), and the wire rope (12) is evenly wound on the winding wheel (11). The drive motor (9) can drive the winding wheel (11) to wind and feed the wire rope (12) through the reducer (10). A first pull rod is provided at the bottom of the platform (3). (15) and pull rod two (16), the ends of pull rod one (15) and pull rod two (16) away from the center of platform (3) are both hinged with locking hooks (17), the ends of pull rod one (15) and pull rod two (16) away from locking hooks (17) are both hinged with connecting rods (14), the end of connecting rod (14) away from pull rod one (15) or pull rod two (16) is hinged with connecting block (13), the bottom of connecting block (13) is provided with connecting hole, the end of wire rope (12) away from winding wheel (11) is fixedly connected to connecting block (13) through connecting hole; The reset unit includes a pressure spring (18) sleeved on the first pull rod (15) or the second pull rod (16), and the two ends of the pressure spring (18) are respectively connected to the platform (3) and the end of the first pull rod (15) or the second pull rod (16) away from the center of the platform [3]. The locking hook (17) has a through hole at one end that does not contact the mold box (8). The ends of the first pull rod (15) and the second pull rod (16) away from the connecting rod (14) are hinged to the locking hook (17) and the locking hook (17) can rotate along the axis of the through hole. The first pull rod (15) and the second pull rod (16) are provided with a limit structure on the side connected to the locking hook (17). The flipping unit includes a tension spring (19) that is pulled between the locking hook (17) and the first pull rod (15) or the second pull rod (16). The axis of the tension spring (19) is parallel to the rotation plane of the locking hook (17). The locking hook (17) rotates within a range of 90° along the axis of the through hole.

2. The vibration casting equipment according to claim 1, characterized in that: Both the first tie rod (15) and the second tie rod (16) can move linearly along their own axes, and both the first tie rod (15) and the second tie rod (16) are symmetrically distributed about the center of the platform (3).

3. The vibration casting equipment according to claim 1, characterized in that: The locking hook (17) adopts a female hinge structure and the contact end of the locking hook (17) with the mold box (8) is provided with a notch. When the locking hook (17) is retracted, the contact end with the mold box (8) avoids the pull rod one (15) or the pull rod two (16).

4. The vibration casting equipment according to claim 1, characterized in that: The platform (3) is provided with a guide rod (7) at the bottom. The guide rod (7) is fixedly connected to the platform (3), and the connecting block (13) is slidably connected to the guide rod (7).

5. The vibration casting equipment according to claim 1, characterized in that: The reducer (10) is a worm gear reducer (10). The output end of the drive motor (9) is connected to the input end of the reducer (10) by a flange and bolts. The output end of the reducer (10) is fixedly connected to the winding wheel (11) by a key.

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