Intelligent casting device for hydraulic actuator shell

Abstract

An intelligent casting device for a hydraulic actuator shell comprises a die casting machine, a pressing piece and a first multi-section electric push rod are arranged on the die casting machine, the output end of the first multi-section electric push rod is fixedly connected with an upper die piece, and the upper die piece is used for being connected with a cast shell body in a clamped mode; moving frames are connected to the two sides of the die casting machine in a sliding mode, and inner supporting mechanisms are installed on the moving frames. The purpose of tightly attaching, positioning and taking out the inner wall of the shell body is achieved through the inner supporting mechanism, the inner wall of the shell body is effectively protected, and meanwhile damage to the shell body and the die-casting machine due to failure of the inner supporting mechanism is avoided through the anti-falling mechanism; and the purpose that the shell body is brought to the position above a table top is achieved through linkage of a mechanical structure by means of the sending-out mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of casting devices, and in particular to an intelligent casting device for a hydraulic actuator housing. Background Art

[0002] A hydraulic actuator is a mechanism that converts hydraulic energy into mechanical energy or other forms of energy. The hydraulic oil is pressurized by a hydraulic pump and then transported to the hydraulic cylinder. The plunger in the hydraulic cylinder produces linear motion under the pressure of the hydraulic oil, thereby realizing the movement of mechanical equipment. Hydraulic actuators are widely used in machinery, industry, agriculture, aviation and other fields, such as hydraulic shears, hydraulic punches, machine tools, cranes, tractors and other equipment.

[0003] At present, the housing of hydraulic actuators is often cast by die casting. First, select a suitable alloy material, such as aluminum alloy, and melt it; pour the molten alloy liquid into the pressure chamber, and then fill it into the cavity of the steel mold at high speed, solidify the alloy liquid under high pressure, and form a housing casting with a predetermined shape and size; secondly, after the casting is completely cooled and solidified in the mold, open the mold and take out the housing casting.

[0004] When removing the hydraulic actuator housing, the existing casting device cannot directly touch and remove it because the casting is still in a high temperature state. Generally, a pick rod is directly inserted into the inner cavity of the housing to pick it up and remove it. However, the above-mentioned removal method, on the one hand, has poor casting stability. The hydraulic actuator housing casting has multiple through-holes, and it is difficult to control the balance of the housing during operation. After the pick rod shakes, it is easy to slide along the pick rod and hit or scald the operator. It may also fall off the pick rod and fall. The fall and collision will not only cause the housing to deform, but if it hits the mold below, it will cause damage or deformation to the mold, thereby affecting subsequent production and use; on the other hand, the pick rod is in point contact with the inner wall of the housing cavity, with a small force area, and the shaking when the housing is picked up causes the contact point to slip. The characteristic of the die-casting process is that the die-casting parts usually have high dimensional accuracy and surface quality. The contact point slip will reduce the surface accuracy of the inner wall of the casting.

[0005] Therefore, it is urgent to improve the removal method of the existing casting device to improve stability and safety. Based on the above situation, the present invention proposes an intelligent casting device for a hydraulic actuator housing with a stable removal function. Summary of the invention

[0006] According to the problems raised in the background technology, the present invention provides a casting device for producing a hydraulic actuator to solve the problems. The present invention will be further explained below.

[0007] An intelligent casting device for a hydraulic actuator housing comprises a die-casting machine, wherein a pressing part and a first multi-section electric push rod are provided on the die-casting machine, an upper mold part is fixedly connected to the output end of the first multi-section electric push rod, and the upper mold part is used to clamp the housing body after casting; a moving frame is slidably connected to both sides of the die-casting machine, and an internal support mechanism is installed on the moving frame; the internal support mechanism comprises a second multi-section electric push rod arranged on the moving frame, the output end of the second multi-section electric push rod is connected to a follower ring, and a plurality of concentric positioning rods uniformly distributed along the circumferential direction are fixedly connected to the follower ring, and a stopper is radially provided on the follower ring, and the guide rod passes through the stopper. A connecting rod evenly distributed along the circumference is also fixedly connected to one side of the ring, and a rotating rod is rotatably connected to the end of the connecting rod. A guide frame is fixedly connected to the stopper, and a sliding column evenly distributed along the circumference is fixedly connected to the guide frame in its radial direction. The sliding column outer shell is provided with an extrusion piece connected in a sliding manner, and the number of the extrusion pieces is the same as the connecting rod. The extrusion piece is rotatably connected to a rotating cylinder, and a cavity is provided in the rotating cylinder. The end of the rotating rod is embedded in the cavity of the rotating cylinder. A closing spring is connected between the rotating cylinder and the rotating rod, and an inner support spring is also provided in the inner cavity of the rotating cylinder. The inner support spring is sealed in the inner cavity of the rotating cylinder by the rotating rod whose end is embedded in the rotating cylinder.

[0008] Preferably, the concentric positioning rod comprises a limiting part fixedly connected to the follower ring and a guide rod connected to the limiting part and parallel to the axis of the follower ring, the guide rod passes through the retaining member, the end of the guide rod is connected to a limiting cap, a telescopic spring sleeved outside the guide rod is provided between the limiting cap and the retaining member, and the telescopic spring is always in a compressed state. The function of the concentric positioning rod is, on the one hand, to support the retaining member to maintain its colinearity with the axis of the follower ring when the follower ring is misaligned with the retaining member after actuation; on the other hand, to be used for sleeved telescopic springs to determine the relative position relationship between the retaining member and the follower ring.

[0009] As a preferred embodiment, an anti-falling mechanism is provided on the upper mold part, the anti-falling mechanism includes a fixing frame, the fixing frame is fixed to the upper mold part, both sides of the fixing frame are rotatably connected with a flip plate, and an anti-falling rod adapted to the interface of the shell body is slidably connected to the flip plate. When the shell body is pulled up, the flip plate rotates in a controlled manner, and the anti-falling rod on it is just stuck in the interface of the shell body, and when the shell body is dislocated, it is immediately received by the anti-falling rod.

[0010] Preferably, a sliding frame is slidably connected to the upper mold part, and racks are fixedly connected to both sides of the sliding frame. A torsion spring is connected to the pivot point between the flip plate and the fixed frame, and a gear is fixedly connected to one side of the flip plate, and the rack is meshed with the gear; a fixing pin is slidably connected to the lower side of the sliding frame, and a locking piece is fixedly connected to the upper mold part, a slope is provided at the lower end of the fixing pin, and a U-shaped slot is provided on the top wall of the locking piece, a force storage spring is connected between the fixing pin and the sliding frame, and a latch is slidably connected to the upper side of the sliding frame, and a pressure spring is connected between the latch and the sliding frame, and the pressure spring is wound around the latch; a fixed plate is fixedly connected to the telescopic end of the second multi-section electric push rod, and an extrusion frame is also fixedly connected to the die-casting machine, a slope is provided on the lower side of the latch, and a slope is also provided on the lower side of the extrusion frame, the extrusion frame is extruded and matched with the latch, the locking piece is extruded and matched with the fixing pin, and the fixing plate is also extruded and matched with the fixing pin. When the inner support mechanism moves toward the shell body, the linkage flip plate flips downward, and the anti-fall rods on the flip plate extend to the interfaces on both sides of the shell body without collision, thereby realizing redundant positioning of the shell body. If the shell body is dislocated, the shell body is still supported by the anti-fall mechanism.

[0011] As a preferred embodiment, a delivery mechanism is also included, the delivery mechanism includes a push frame, the push frame is fixedly connected to the upper mold part, the lower part of the push frame is rotatably connected to a rotating wheel, the mobile frame is fixedly connected to a guide frame, the guide frame is provided with an oblique slide groove, and the rotating wheel slides in the slide groove of the guide frame. The delivery mechanism brings the shell body to the top of the table by relying on the output of the first multi-section electric push rod, which is achieved through the linkage of the mechanical structure without adding a power source, and the implementation method is stable and reliable.

[0012] Preferably, a positioning assembly is provided between the moving frames, and the positioning assembly includes a trigger rod, which is rotatably connected between the moving frames, a fixed block is fixed to the moving frame, a trigger button is installed on the fixed block, the trigger button is electrically connected to the first multi-section electric push rod and the two second multi-section electric push rods, and a stop convex is connected to the moving frame, and the trigger rod rests on the stop convex under its own weight. Through the cooperation of the push frame, the guide frame, the trigger rod, the trigger button, etc., precise positioning and release can be achieved when the shell is moved above the desktop.

[0013] Beneficial effect: The present invention achieves the purpose of tightly positioning and removing the inner wall of the shell body through the internal support mechanism, effectively protects the inner wall of the shell body, and can adapt to shell bodies of different sizes to achieve effective fixation of shells of different sizes; at the same time, the anti-fall mechanism is used to avoid damage to the shell body and the die-casting machine due to failure of the internal support mechanism, and the purpose of bringing the shell body above the desktop is achieved through the linkage of the mechanical structure through the delivery mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the inner support mechanism of the present invention.

[0016] Figure 3 It is a schematic diagram of the matching structure of the rotating rod and the rotating cylinder of the inner support mechanism of the present invention.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the anti-falling mechanism of the present invention.

[0018] Figure 5 It is another three-dimensional structural schematic diagram of the anti-falling mechanism of the present invention.

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the flap plate component of the anti-fall mechanism of the present invention.

[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the delivery mechanism of the present invention.

[0021] Figure 8 for Figure 7 A magnified schematic diagram of the structure in the middle.

[0022] Fig. 9 for Figure 7 A magnified schematic diagram of the structure at B in the figure.

[0023] The meanings of the reference numerals in the figure are as follows: die-casting machine 1, pressing part 2, first multi-section electric push rod 3, upper mold part 4, shell body 5, moving frame 6, second multi-section electric push rod 7, follower ring 8, concentric positioning rod 9, limiting part 901, guide rod 902, telescopic spring 903, limiting cap 904, blocking part 10, connecting rod 11, rotating rod 12, guide frame 13, extrusion part 14, rotating cylinder 15, closing spring 16, inner support spring 17, fixed frame 18, flip plate 19, anti-fall rod 20, sliding frame 21, rack 22, torsion spring 23, gear 24, fixing pin 25, locking part 26, storage spring 27, latch 28, pressure spring 29, fixing plate 30, extrusion frame 31, pushing frame 32, rotating wheel 33, guide frame 34, trigger rod 35, fixing block 36, trigger button 37, stop convex 38. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-9 The present invention is further described with reference to the accompanying drawings and examples.

[0025] An intelligent casting device for hydraulic actuator housing, see attached Figure 1, including a die-casting machine 1, on which a symmetrically distributed pressing part 2 is slidably connected, a first multi-section electric push rod 3 is installed on the die-casting machine 1, an upper mold part 4 is fixedly connected to the output end of the upper side of the first multi-section electric push rod 3, the upper mold part 4 is slidably connected to the die-casting machine 1, and the upper mold part 4 is lifted and lowered under the output control of the first multi-section electric push rod 3. An electric ejector is provided on the upper mold part 4, and the upper mold part 4 is used to clamp the shell body 5 after casting. The shell body 5 can be separated from the upper mold part 4 by controlling the electric ejector on the upper mold part 4. This technology is a prior art and will not be elaborated in detail in this embodiment.

[0026] Reference Figure 2-3 The die-casting machine 1 is slidably connected with a moving frame 6 on both sides, and an inner support mechanism is installed on the upper side of the moving frame 6, which acts on the inner wall of the inner cavity of the shell body 5 to position it at the height of taking out the parts.

[0027] Specifically, the inner support mechanism includes a second multi-section electric push rod 7 arranged on the moving frame 6, and the output end of the second multi-section electric push rod 7 is connected to a follower ring 8, and the follower ring 8 moves with the output end of the second multi-section electric push rod 7. Three concentric positioning rods 9 evenly distributed along the circumferential direction are fixedly connected to the follower ring 8, and the concentric positioning rods 9 include a limiting portion 901 fixedly connected to the follower ring 8 and a guide rod 902 connected to the limiting portion 901 and parallel to the axis of the follower ring 8. The follower ring 8 is provided with a stopper 10 radially outwardly, and the guide rod 902 penetrates the stopper 10, and the end is connected to a limiting cap 904, and a telescopic spring 903 sleeved outside the guide rod 902 is provided between the limiting cap 904 and the stopper 10, and the telescopic spring 903 is always in a compressed state.

[0028] In the initial state, the elastic force generated by the compression state of the telescopic spring 903 presses the stopper 10 against the limit portion 901 of the concentric positioning rod 9, that is, before entering the inner cavity of the shell body 5, the stopper 10 is concentrically sleeved outside the follower ring 8, and the position is determined. The function of the concentric positioning rod 9 is, on the one hand, to support the stopper 10 to maintain its axis line with the follower ring 8 after the follower ring 8 is dislocated with the stopper 10 after operation; on the other hand, it is used to sleeve the telescopic spring 903 to determine the relative position relationship between the stopper 10 and the follower ring 8.

[0029] A connecting rod 11 evenly distributed along the circumferential direction is fixedly connected to one side of the follower ring 8, and a rotating rod 12 is rotatably connected to the end of the connecting rod 11. A guide frame 13 is fixedly connected to the stopper 10, and a sliding column (not shown) evenly distributed along the circumferential direction is fixedly connected to the guide frame 13 in its radial direction. An extrusion piece 14 connected in a sliding manner is arranged outside the sliding column, and a rotating cylinder 15 is rotatably connected to the extrusion piece 14. A cavity is arranged inside the rotating cylinder 15, and the end of the rotating rod 12 is built into the cavity of the rotating cylinder 15, that is, the rotating cylinder 15 is slidably connected to the rotating rod 12.

[0030] A closing spring 16 is connected between the rotating cylinder 15 and the rotating rod 12. Its function is that before the internal support mechanism enters the inner cavity of the shell body 5, the contraction elastic force generated by its stretched state makes the extrusion member 14 be in a state closest to the guide frame 13. At this time, the total length of the rotating cylinder 15 and the rotating rod 12 is the shortest, that is, the internal support mechanism is in a closed state, so it can be pushed into the inner cavity of the shell body 5 without colliding with it.

[0031] The inner cavity of the rotating cylinder 15 is also provided with an inner support spring 17, and the inner support spring 17 is sealed in the inner cavity of the rotating cylinder 15 by the rotating rod 12 whose end is built into the rotating cylinder 15. When the rotating cylinder 15 and the rotating rod 12 slide relative to each other, the length of the inner support spring 17 changes with the total length of the rotating cylinder 15 and the rotating rod 12. The function of the inner support spring 17 is that when it is compressed, the elastic force generated presses the extrusion member 14 tightly against the inner wall of the inner cavity of the shell body 5. The inner cavity of the rotating cylinder 15 passes through the air port, or there is a gap between the sliding mating surface of the rotating cylinder 15 and the rotating rod 12, in order to make the inner cavity of the rotating cylinder 15 communicate with the outside, and ensure the smoothness of the relative sliding of the rotating cylinder 15 and the rotating rod 12. This is a conventional technical means and will not be repeated.

[0032] The principle of positioning the housing body 5 at the height for picking up items by the inner support mechanism acting on the inner wall of the inner cavity of the housing body 5 is as follows: when the housing body 5 is lifted to the height for picking up items by the first multi-section electric push rod 3, the interface surfaces on the left and right sides thereof are aligned with the guide frame 13, the first multi-section electric push rod 3 stops running, and the housing body 5 does not move up any more. At this time, the second multi-section electric push rod 7 is controlled to drive the inner support mechanism to move inward, and the inner support mechanism is in a closed state under the action of the closing spring 16, and at this time, the inner support mechanism can enter the housing body 5 along the interface. When the moving stopper 10 contacts the outer wall of the shell body 5, the side wall of the shell body 5 will resist the stopper 10 to stop it, thereby making the guide frame 13 connected thereto remain stationary in the inner cavity of the shell body 5. Thereafter, the follower ring 8 moves along with the second multi-section electric push rod 7, so that the guide rod 902 of the concentric positioning rod 9 slides relative to the stopper 10, compressing the telescopic spring 903 thereon, and the follower ring 8 enters the inner cavity of the shell body 5 and is misaligned with the stopper 10; at the same time, the follower ring 8 drives the connecting rod 11 to continue to move inward, the distance between the connecting rod 11 and the guide frame 13 is shortened, and the rotating rod 12 rotates relative to the connecting rod 11. The tensile deformation of the closing spring 16 that was previously in a stretched state becomes smaller, and the rotating rod 12 drives the rotating cylinder 15 connected thereto to rotate, and the closing inner support mechanism begins to expand, thereby driving the extrusion member 14 to slide outward in the radial direction of the guide frame 13 until the extrusion member 14 contacts the inner wall of the shell body 5. After the extrusion piece 14 contacts the inner wall of the shell body 5, as the connecting rod 11 continues to move inward, the total length of the rotating cylinder 15 and the rotating rod 12 becomes shorter, and the rotating rod 12 will further slide into the inner cavity of the rotating cylinder 15, thereby compressing the inner support spring 17 in the inner cavity of the rotating cylinder 15, and the closing spring 16 will further contract. At this time, the elastic force of the inner support spring 17 causes the extrusion piece 14 to be pressed tightly against the inner wall of the shell body 5, that is, the shell body 5 is fixed from the inside by the extrusion piece 14.

[0033] This embodiment can control the deformation degree of the inner support spring 17 by controlling the second multi-section electric push rod 7, thereby ensuring that the pressure of the extrusion piece 14 pressed against the inner wall of the shell body 5 is appropriate. This fixing method is not only stable and reliable, but also can adapt to shell bodies 5 of different sizes, because by adjusting the length of the rotating rod 12 and the rotating cylinder 15 and the elastic modulus of the closing spring 16 and the inner support spring 17, effective fixation of shells of different sizes can be achieved.

[0034] Before the inner support mechanism positions the shell body 5 at the height of the pick-up, the shell body 5 needs to be lifted to the height of the pick-up by the first multi-section electric push rod 3. The prior art is to realize the engagement and disengagement with the shell body 5 by controlling the electric ejector on the upper mold part 4. However, in the actual process, the engagement strength of the electric ejector and the shell body 5 is sufficient when the material is taken up. In this embodiment, based on the premise that the shell body 5 needs to be positioned by the inner support mechanism, it is required that when the inner support mechanism enters the shell body 5, the interface surfaces on the left and right sides of the shell body 5 and the guide frame 13 must be strictly aligned, and the inner support mechanism is in a closed state. At this time, the control is not reliable, especially when the die-casting machine 1 is in a high temperature state when working. In this embodiment, each spring will creep and there is a risk of failure. Once the inner support mechanism is in a non-closed state and enters the shell body 5, it will directly hit the shell body 5, causing the shell body 5 to dislocate and fall. In this embodiment, the redundant positioning of the shell body 5 is realized by setting an anti-falling mechanism. If the shell body 5 is dislocated, the shell body 5 is still undertaken by the anti-falling mechanism.

[0035] Reference Figure 4-6 The anti-fall mechanism is arranged on the upper mold part 4, and includes a fixing frame 18, which is fixed to the upper mold part 4, and both sides of the fixing frame 18 are rotatably connected with a flip plate 19, and the flip plate 19 is also slidably connected with an anti-fall rod 20 adapted to the interface of the shell body 5. When the shell body 5 is pulled up, the flip plate 19 rotates in a controlled manner, and the anti-fall rod 20 thereon just fits into the interface of the shell body 5, and when the shell body 5 is dislocated, it is immediately received by the anti-fall rod 20.

[0036] The flap plate 19 realizes linkage opening and closing operation through the mechanical structure provided on the upper mold part 4. The upper mold part 4 is slidably connected with a sliding frame 21, and racks 22 are fixedly connected on both sides of the sliding frame 21. A torsion spring 23 is connected at the pivotal joint between the flap plate 19 and the fixed frame 18. A gear 24 is fixedly connected to one side of the flap plate 19, and the rack 22 is meshed with the gear 24. A fixing pin 25 is slidably connected to the lower side of the sliding frame 21, a retaining piece 26 is fixedly connected to the upper mold member 4, a bevel is provided at the lower end of the fixing pin 25, a U-shaped bayonet is provided on the top wall of the retaining piece 26, a force storage spring 27 is connected between the fixing pin 25 and the sliding frame 21, a latch 28 is slidably connected to the upper side of the sliding frame 21, a pressure spring 29 is connected between the latch 28 and the sliding frame 21, the pressure spring 29 is wound around the latch 28, a fixing plate 30 is fixedly connected to the telescopic end of the second multi-section electric push rod 7, an extrusion frame 31 is also fixedly connected to the die-casting machine 1, a bevel is provided at the lower side of the latch 28, a bevel is also provided at the lower side of the extrusion frame 31, the extrusion frame 31 is extruded and matched with the latch 28, the retaining piece 26 is extruded and matched with the fixing pin 25, and the fixing plate 30 is also extruded and matched with the fixing pin 25.

[0037] After the actuator housing is cooled in the mold, the pressing part 2 is controlled to drive the mold to separate outward, and then the first multi-section electric push rod 3 is controlled to drive the upper mold part 4 to move upward, thereby driving the housing body 5 to move upward, and then driving the flip plate 19, the sliding frame 21, the fixing pin 25, the latch 28, etc. to move upward together. When the upward moving latch 28 contacts the lower inclined surface of the extrusion frame 31, the inclined surface of the extrusion frame 31 will resist the latch 28 to drive the sliding frame 21 to slide laterally, thereby driving the rack 22 and the fixing pin 25 to move laterally. Since the rack 22 is meshed with the gear 24, the gear 24 drives the flip plate 19 and the anti-fall rod 20 to flip downward, and the torsion spring 23 is twisted, and the anti-fall rod 20 on the flip plate 19 extends to the interfaces on both sides of the housing body 5 without collision. When the laterally moving fixing pin 25 contacts the rear wall of the locking member 26, the wall of the locking member 26 will press against the inclined surface of the fixing pin 25. As the fixing pin 25 continues to move forward, the fixing pin 25 will slide upward, and the force storage spring 27 will be deformed. When the fixing pin 25 passes over the rear wall of the locking member 26, under the elastic force of the force storage spring 27, the fixing pin 25 will be inserted into the U-shaped slot of the locking member 26, so that the flip plate 19 keeps clamping the shell body 5. At this time, the fixing pin 25 is opposite to the fixing plate 30, that is, they are on the same straight line in the travel direction of the inner support mechanism.

[0038] When the inner support mechanism moves toward the shell body 5, the moving fixed plate 30 first contacts the fixed pin 25, which indicates that the inner support mechanism can enter the shell body 5 without damage. The fixed plate 30 will support the fixed pin 25 to make it slide upward, forcing the fixed pin 25 to withdraw from the U-shaped bayonet, and the force storage spring 27 will stretch and deform again. At the same time, under the action of the torsion spring 23, the flip plate 19 will drive the anti-fall rod 20 to flip upward and reset, and no longer provide anti-fall protection for the shell body 5. When the flip plate 19 flips and resets, it drives the sliding frame 21 and the fixed pin 25 to move and reset through the rack 22. When the reset fixed pin 25 separates from the fixed plate 30, under the elastic force of the force storage spring 27, the fixed pin 25 moves downward and resets.

[0039] When the inner support mechanism completes the positioning of the shell body 5, the electric ejector on the upper mold part 4 can be controlled to extend and retract first, and the electric ejector can cause the shell body 5 to separate from the upper mold part 4. Secondly, the first multi-section electric push rod 3 is controlled to drive the upper mold part 4 to move upward away from the shell body 5, and then the movable frame 6 is pulled sideways, thereby driving the shell body 5 to move through the inner support mechanism. The staff can place a table for receiving the die-cast shell body 5 on the side of the die-casting machine 1. Under the action of the shell body 5's own gravity, the staff can operate and control the shell body 5 to make it fall smoothly onto the table.

[0040] Reference Figure 7-9, and also includes a sending mechanism, which includes a pushing frame 32, the pushing frame 32 is fixedly connected to the upper mold part 4, the lower part of the pushing frame 32 is rotatably connected to a rotating wheel 33, the movable frame 6 is fixedly connected to a guide frame 34, the guide frame 34 is provided with an oblique sliding groove, and the rotating wheel 33 slides in the sliding groove of the guide frame 34.

[0041] When the inner support mechanism completes the clamping of the shell body 5, the electric ejector on the upper mold part 4 is separated from the shell body 5, and then the first multi-section electric push rod 3 continues to drive the upper mold part 4 to move upward, and the moving upper mold part 4 will drive the push frame 32 and the rotating wheel 33 to move upward together. Since the guide frame 34 has an oblique sliding groove, as the rotating wheel 33 moves upward, the rotating wheel 33 pushes the moving frame 6 to move through the action of the oblique groove of the guide frame 34 until the inner support mechanism brings the shell body 5 above the table. The delivery mechanism brings the shell body 5 above the table by relying on the output of the first multi-section electric push rod 3, which is realized through the linkage of the mechanical structure, without adding a power source, and the implementation method is stable and reliable.

[0042] Reference Figure 7 and 9 , a positioning assembly is provided between the moving frames 6 to enable the removed housing body 5 to accurately stop just above the desktop. The positioning assembly includes a trigger rod 35, which is rotatably connected between the moving frames 6, a fixed block 36 is fixedly connected to the moving frame 6, a trigger button 37 is installed on the fixed block 36, and the trigger button 37 is electrically connected to the first multi-section electric push rod 3 and the two second multi-section electric push rods 7. A stop convex 38 is connected to the moving frame 6, and the trigger rod 35 rests on the stop convex 38 under its own weight.

[0043] During the process of the inner support mechanism bringing the shell body 5 to the top of the table, the positioning assembly moves with the moving frame 6. When the trigger rod 35 contacts a certain part of the placed table, the table will resist the trigger rod 35. As the moving frame 6 continues to move forward, the trigger rod 35 will flip to contact the trigger button 37. At this time, the trigger button 37 will control the first multi-section electric push rod 3 to stop running. At this time, the shell body 5 is located above the table, and the bottom is close to the table. After that, the second multi-section electric push rod 7 drives the inner support mechanism to close and move outward, so that the shell body 5 falls lightly on the table. The second multi-section electric push rod 7 drives the extrusion member 14 to withdraw from the shell body 5. When the inner support mechanism withdraws from the shell body 5, due to the load of the table, the relative position of the inner support mechanism and the shell body 5 remains unchanged, and there will be no collision with the shell body 5, completing the release of the shell. When the moving frame 6 resets and drives the trigger rod 35 to move away from the table, the trigger rod 35 flips under its own gravity and separates from the trigger button 37, and resumes to rest on the stop convex 38. The moving frame 6 also returns to its original position, ready for the processing of the next shell. Through the cooperation among the push frame 32, the guide frame 34, the trigger rod 35, the trigger button 37, etc., the shell can be accurately positioned and released when it is moved above the table, and preparations can be made for the processing of the next shell, thereby improving production efficiency, reducing manual intervention, and lowering labor intensity.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent casting device for a hydraulic actuator housing, comprising a die-casting machine (1), the die-casting machine (1) being provided with a pressing part (2) and a first multi-section electric push rod (3), the output end of the first multi-section electric push rod (3) being fixedly connected to an upper mold part (4), the upper mold part (4) being used for clamping a housing body (5) after casting; characterized in that: The die-casting machine (1) is slidably connected to a movable frame (6) on both sides, and an internal support mechanism is installed on the movable frame (6); The inner support mechanism comprises a second multi-section electric push rod (7) arranged on the moving frame (6); the output end of the second multi-section electric push rod (7) is connected to a follower ring (8); a plurality of concentric positioning rods (9) uniformly distributed in the circumferential direction are fixedly connected to the follower ring (8); a stopper (10) is provided radially outwardly of the follower ring (8); a connecting rod (11) uniformly distributed in the circumferential direction is also fixedly connected to one side of the follower ring (8); an end of the connecting rod (11) is rotatably connected to a rotating rod (12); a guide frame (13) is fixedly connected to the stopper (10); and a plurality of concentric positioning rods (9) uniformly distributed in the circumferential direction are fixedly connected to the guide frame (13) in its radial direction. A sliding column, wherein an outer sleeve of the sliding column is provided with an extrusion piece (14) connected in a sliding manner, the number of the extrusion pieces (14) is the same as that of the connecting rod (11), the extrusion piece (14) is rotatably connected to a rotating cylinder (15), the rotating cylinder (15) is provided with a cavity, the end of the rotating rod (12) is built into the cavity of the rotating cylinder (15), a closing spring (16) is connected between the rotating cylinder (15) and the rotating rod (12), and the inner cavity of the rotating cylinder (15) is also provided with an inner support spring (17), and the inner support spring (17) is sealed in the inner cavity of the rotating cylinder (15) by the rotating rod (12) whose end is built into the rotating cylinder (15).

2. The intelligent casting device for a hydraulic actuator housing according to claim 1, characterized in that: The concentric positioning rod (9) comprises a limiting portion (901) fixedly connected to the follower ring (8) and a guide rod (902) connected to the limiting portion (901) and parallel to the axis of the follower ring (8); the guide rod (902) passes through the stopper (10); the end of the guide rod (902) is connected to a limiting cap (904); a telescopic spring (903) sleeved on the outside of the guide rod (902) is provided between the limiting cap (904) and the stopper (10); the telescopic spring (903) is always in a compressed state.

3. The intelligent casting device for a hydraulic actuator housing according to claim 2, characterized in that: It also includes an anti-falling mechanism disposed on the upper mold member (4), the anti-falling mechanism including a fixing frame (18), the fixing frame (18) being fixedly connected to the upper mold member (4), both sides of the fixing frame (18) being rotatably connected to a flip plate (19), and an anti-falling rod (20) adapted to the interface of the shell body (5) being slidably connected to the flip plate (19).

4. The intelligent casting device for a hydraulic actuator housing according to claim 3, characterized in that: The upper mold part (4) is slidably connected to a sliding frame (21), racks (22) are fixedly connected to both sides of the sliding frame (21), a torsion spring (23) is connected to the pivotal connection between the flip plate (19) and the fixed frame (18), a gear (24) is fixedly connected to one side of the flip plate (19), and the rack (22) meshes with the gear (24); a fixing pin (25) is slidably connected to the lower side of the sliding frame (21), a locking member (26) is fixedly connected to the upper mold part (4), a lower end of the fixing pin (25) is provided with an inclined surface, a top wall of the locking member (26) is provided with a U-shaped bayonet, and a force storage spring is connected between the fixing pin (25) and the sliding frame (21). (27), a latch (28) is slidably connected to the upper side of the sliding frame (21), a pressure spring (29) is connected between the latch (28) and the sliding frame (21), and the pressure spring (29) is wound around the latch (28); a fixing plate (30) is fixedly connected to the telescopic end of the second multi-section electric push rod (7), and an extrusion frame (31) is also fixedly connected to the die-casting machine (1), an inclined surface is provided on the lower side of the latch (28), and an inclined surface is also provided on the lower side of the extrusion frame (31), the extrusion frame (31) and the latch (28) are extruded and matched, the locking member (26) and the fixing pin (25) are extruded and matched, and the fixing plate (30) and the fixing pin (25) are also extruded and matched.

5. The intelligent casting device for a hydraulic actuator housing according to claim 4, characterized in that: The invention also comprises a delivery mechanism, wherein the delivery mechanism comprises a pushing frame (32), the pushing frame (32) is fixedly connected to the upper mold member (4), a rotating wheel (33) is rotatably connected to the lower part of the pushing frame (32), a guide frame (34) is fixedly connected to the movable frame (6), an oblique sliding groove is provided on the guide frame (34), and the rotating wheel (33) slides in the sliding groove of the guide frame (34).

6. The intelligent casting device for a hydraulic actuator housing according to claim 5, characterized in that: A positioning assembly is provided between the moving frames (6), the positioning assembly comprising a trigger rod (35), the trigger rod (35) being rotatably connected between the moving frames (6), a fixed block (36) being fixedly connected to the moving frame (6), a trigger button (37) being mounted on the fixed block (36), the trigger button (37) being electrically connected to the first multi-section electric push rod (3) and the two second multi-section electric push rods (7), the moving frame (6) being connected to a stop convex (38), the trigger rod (35) being parked on the stop convex (38) under its own weight.

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