Stamping device for casting part post-processing

Abstract

The stamping device comprises a pedestal, a bearing frame and an automatic pressing and locking mechanism, a main moving frame is arranged on a guide rod in the bearing frame through driving of a first hydraulic cylinder to horizontally slide in a reciprocating mode, and an auxiliary moving frame is arranged in the middle of the main moving frame through driving of a second hydraulic cylinder to vertically slide in a reciprocating mode; the automatic pressing and locking mechanism drives the top mold fixed on the automatic pressing and locking mechanism to form a rotating structure on the transverse frame body in the auxiliary moving frame, and the automatic pressing and locking mechanism is matched with the top mold to automatically pick and fix a spoke center opening in the hub casting part in a pressing and locking mode and drives the hub casting part to be directly in butt joint with the bottom mold to be positioned and fixed in the discharging process. According to the stamping device for casting post-processing, the hub casting is automatically picked up and fixed in a pressing and locking mode, rim deformation or scratching in the hub casting is avoided, in addition, when the rim is pushed and demolded, spoke lifting and demolding are synchronously conducted, and it is guaranteed that the rim and the spoke are evenly stressed in the demolding process.

Description

Technical Field

[0001] The invention relates to the technical field related to stamping processing of castings, and in particular to a stamping device for post-processing of castings. Background Art

[0002] The casting process is to inject molten liquid metal into a pre-designed mold, wait for the liquid metal to cool and solidify, and then obtain parts of the required shape and size. Castings are metal parts made using this process. After casting, castings need to undergo a series of post-processing steps such as stamping and grinding. There are many types of castings according to different classification methods. As for the ductile iron wheel hub spinning casting upgrade process, in order to improve the toughness and strength of the ductile iron wheel hub casting, the ductile iron wheel hub blank needs to be spin-stamped.

[0003] After searching for the invention patent with the authorization announcement number CN110871229B, a spinning process for automobile aluminum alloy wheel hub is disclosed, which includes the following steps: (i) taking out the aluminum alloy wheel hub blank from the casting mold and directly putting it into a heating furnace for further heating; (ii) using a manipulator to grab the aluminum alloy wheel hub blank coming out of the heating furnace and placing the aluminum alloy wheel hub blank on the spinning mold, and controlling the upper tail ejector tooling above the spinning mold to move downward to clamp the aluminum alloy wheel hub blank together with the spinning mold; (iii) spinning the aluminum alloy wheel hub blank with a spinning tool; (iv) controlling the upper tail ejector tooling to move upward to the original point, and the ejector pushes the spinning blank that has completed the spinning process upward to separate the spinning blank from the spinning mold.

[0004] Based on the above patents and combined with existing solutions and actual production and processing, the current wheel hub casting rotary stamping processing device still has some problems, such as: 1. In the above patent, the aluminum alloy wheel casting is unloaded by a manipulator. It can be seen that after the ejector is ejected from the mold, the unloading operation is also unloaded by a manipulator. This is the same as the existing wheel rotary stamping device. Both use a manipulator to unload or unload. However, the manipulator is highly dependent on the working environment and needs to operate in a stable temperature, humidity and cleanliness working environment. That is, a complex working environment can easily lead to deviations in the operation of the manipulator. The manipulator is only responsible for unloading and taking the wheel, and needs to position and fix the wheel on the mold. The operation steps are not simplified enough, which affects the work efficiency. 2. The robot fixes the wheel hub rim by clamping and grasping, which has strict requirements on the clamping parameters of the robot. Or affected by the complex working environment, the traditional robot is prone to deformation of the rim or scratches on the surface of the rim due to improper clamping force.

[0005] Therefore, we propose a stamping device for post-processing of castings to facilitate solving the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a stamping device for post-processing of castings, so as to solve the problems that the fixed method of clamping the rim in the material taking operation of ductile iron wheel hub castings easily causes rim deformation or scratches, and the operation steps are not simplified enough as proposed in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A stamping device for post-processing of castings, including: A pedestal, a transmission disk is rotatably connected to the central position of the pedestal through a motor fixed on its lower seat wall, and stamping tool assemblies for forming hub castings are arranged on both the left and right sides of the pedestal; It further includes: A bearing frame, the bearing frame is fixedly connected vertically upward above the pedestal, a main moving frame slides horizontally back and forth on the guide rod in the bearing frame under the drive of a first hydraulic cylinder, and a secondary moving frame slides vertically back and forth under the drive of a second hydraulic cylinder in the middle of the main moving frame; An automatic pressing and locking mechanism, the automatic pressing and locking mechanism drives a top mold fixed on it to form a rotating structure on the transverse frame in the secondary moving frame, and a bottom mold fixedly connected to the transmission disk is correspondingly arranged directly below the top mold. The automatic pressing and locking mechanism cooperates with the top mold to automatically pick up and fix the center hole of the spoke in the hub casting, and it drives the hub casting to be directly docked with the bottom mold for positioning and fixing during the feeding process.

[0008] Preferably, the automatic pressing and locking mechanism includes a pipe shell frame rotatably connected to the middle of the transverse frame in the secondary moving frame and claw members arranged in an annular array with the center of the pipe shell frame as the center at the lower section of the pipe shell frame. The pipe shell frame penetrates through the center position of the top mold and is fixedly connected together by bolts. A linkage column is slidably connected in the lower shell cavity of the pipe shell frame, and a first spring is installed at the sliding connection between the two; Among them, the claw member forms a flipping structure on the pipe shell frame through an auxiliary shaft column, and its flipping and unfolding cooperate with the top mold to press and lock the spoke in the hub casting. An integrally formed gear portion is arranged at one end of the claw member close to the linkage column, and the gear portion is meshed and connected with a rack portion integrally formed on the linkage column.

[0009] Preferably, a pushing member is slidably connected in the upper shell cavity of the pipe shell frame under the drive of an electric telescopic rod, and a second spring for transmission is arranged between the pushing member and the linkage column. The spring constant of the second spring is greater than that of the first spring.

[0010] Preferably, the linkage column and the rod body part of the pressing rod are connected in a sliding manner, and the upper end of the rod body part of the pressing rod is fixedly connected to the narrow part of the pushing part by bolts. An extrusion part with an integrated structure is vertically arranged upward on the upper side wall of the middle disc part of the pressing rod, and the extrusion part is connected to the auxiliary groove opened in the middle of the first inclined tongue lock in an interpenetrating and pressing manner; Wherein, the first inclined tongue lock forms a telescopic sliding structure at the lower end of the pipe shell frame. A third spring is installed at the sliding connection between the two, and the inclined tongue end of the first inclined tongue lock is snap-connected to the lower end of the linkage column.

[0011] Preferably, the upper end of the extrusion part is provided with an inclined side wall, and the inclined side wall in the extrusion part and the inclined side wall in the auxiliary groove are arranged in a corresponding and matching state.

[0012] Preferably, a pipe groove part is opened at the central position of the bottom mold. The upper section of the pipe groove part is in a trumpet-shaped structure. A removal part for pushing and demolding the hub casting is slidably connected to the lower end of the bottom mold, and a fourth spring is installed at the sliding connection between the two.

[0013] Preferably, the column part in the removal part is movably inserted into the pipe groove part, and the ring part in the removal part is movably sleeved outside the bottom mold. Semi-ring sleeves are rotatably connected to the left and right sides of the upper end of the column part in the removal part, and a torsion spring is installed at the rotatable connection between the two.

[0014] Preferably, the semi-ring sleeve is pressed and fitted against the lower section pipe groove wall of the pipe groove part. A second inclined tongue lock is telescopically slidably connected to the middle of the semi-ring sleeve. A fifth spring is installed at the sliding connection between the two, and the inclined tongue end of the second inclined tongue lock is connected to the middle disc part of the pressing rod in a snap-fit manner.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The stamping device for post-treatment of castings automatically picks up and fixes the hub casting in a pressing and locking manner, avoiding deformation or scratching of the rim in the hub casting. In addition, when pushing and demolding the rim, the spoke is simultaneously lifted and demolded, ensuring uniform stress on the rim and spoke during the demolding of the hub casting; 1. After the automatic pressing and locking mechanism penetrates into the central opening of the spoke in the hub casting, after the linkage column is driven to slide, by using the meshing action between the rack part and the gear part, the pressing claw part is flipped and unfolded on the pipe shell frame, and the flipped and unfolded pressing claw part is matched with the top mold to press and lock the spoke in the hub casting. The hub casting is automatically picked up and fixed in a pressing and locking manner, realizing damage-free pressing and locking, which is different from the clamping and fixing of traditional manipulators and avoiding deformation or scratching of the rim in the hub casting; Further, driven by the first hydraulic cylinder, the main moving support is horizontally slid on the bearing frame. Driven by the second hydraulic cylinder, the auxiliary moving support is vertically slid on the main moving support. The cooperation of the two realizes the horizontal and vertical movement of the automatic locking mechanism. When the hub casting is docked onto the bottom mold, the positioning and fixing of the hub casting on the bottom mold are synchronously realized, optimizing the operation steps and ensuring the working efficiency; 2. The locking between the middle disc part of the pressing rod and the semi-ring sleeve is assisted by the second inclined tongue lock. Driven by the electric telescopic rod, the operating removal part moves upward. Driven by the second hydraulic cylinder, the auxiliary moving support drives the automatic locking mechanism to move upward synchronously. When the removal part pushes and demolds the rim of the hub casting, the automatic locking mechanism simultaneously lifts and demolds the spoke of the hub casting, ensuring uniform stress on the rim and spoke during the demolding of the hub casting. Different from the demolding method of simply pushing the spoke, it avoids the phenomenon of mold jamming and the problem of spoke damage caused by uneven stress, realizing convenient and non-damaging demolding treatment; Further, the middle disc part of the pressing rod drives the semi-ring sleeve to move to the trumpet section of the pipe groove part. After the semi-ring sleeve loses its limit, it is reset by the elastic deformation of the torsion spring, causing the semi-ring sleeve to flip and unfold on the removal part, and making the second inclined tongue lock disengage from the middle disc part of the pressing rod. Through the setting of the linkage structure, the automatic separation of the automatic locking mechanism and the removal part is realized, ensuring the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 It is a schematic perspective structural diagram of the connection side view and cross-section of the transmission disc and the bottom mold of the present invention; Figure 3 It is a schematic perspective structural diagram of the connection side view and cross-section of the bearing frame and the main moving support of the present invention; Figure 4 It is a schematic perspective structural diagram of the front view and cross-section of the connection between the auxiliary moving support and the automatic locking mechanism of the present invention; Figure 5 It is a schematic perspective structural diagram of the front view of the separation of the main moving support and the auxiliary moving support of the present invention; Figure 6 It is a schematic perspective structural diagram of the front view and cross-section of the connection between the pipe shell frame and the pushing part of the present invention; Figure 7 It is a schematic perspective structural diagram of the front view and cross-section of the connection between the pipe shell frame and the pressing claw part of the present invention; Figure 8 It is a schematic perspective structural diagram of the front view of the separation of the pressing claw part and the linkage column of the present invention; Figure 9 It is a schematic perspective structural diagram of the front view and cross-section of the connection between the linkage column and the pressing rod of the present invention; Figure 10Schematic diagram of the top view cross-section three-dimensional structure of the shell frame and the first inclined tongue lock of the present invention; Figure 11 Schematic diagram of the bottom view cross-section three-dimensional structure of the top mold and the shell frame of the present invention; Figure 12 Schematic diagram of the structure of the second embodiment of the present invention; Figure 13 Schematic diagram of the front view cross-section three-dimensional structure of the bottom mold and the removal part of the present invention; Figure 14 Schematic diagram of the front view cross-section three-dimensional structure of the removal part and the half-ring sleeve of the present invention.

[0017] In the figure: 1, pedestal; 2, transmission disc; 3, motor; 4, stamping tool assembly; 5, bearing frame; 6, main moving frame; 7, first hydraulic cylinder; 8, auxiliary moving frame; 9, second hydraulic cylinder; 10, automatic press-lock mechanism; 11, top mold; 12, bottom mold; 1201, pipe groove part; 13, shell frame; 14, pressing claw part; 1401, gear part; 15, linkage column; 1501, rack part; 16, first spring; 17, pushing part; 18, second spring; 19, electric telescopic rod; 20, pressing rod; 2001, extrusion part; 21, first inclined tongue lock; 2101, auxiliary groove; 22, third spring; 23, removal part; 24, fourth spring; 25, half-ring sleeve; 26, torsion spring; 27, second inclined tongue lock; 28, fifth spring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1:

[0020] The present invention provides a technical solution: a stamping device for post-treatment of castings. In response to the problem that traditional manipulators only undertake the feeding and discharging of hub castings, and additional positioning and fixing of hub castings on the mold are required, the operation steps are not simplified enough, and traditional manipulators are prone to cause rim deformation due to improper clamping force or scratch the rim surface. Through the mutual cooperation between the automatic press-lock mechanism 10 and the top mold 11, the hub center opening in the hub casting is automatically picked up and fixed in a press-lock manner, avoiding direct docking with the rim. In addition, through the mutual cooperation between the horizontal reciprocating sliding of the main moving frame 6 and the vertical reciprocating sliding of the auxiliary moving frame 8, the hub casting is directly docked with the bottom mold 12 during feeding for positioning and fixing.

[0021] This technical solution: Please refer to Figures 1 - 11 , a stamping device for post-treatment of castings, including a pedestal 1, which is horizontally placed on the factory floor. A transmission disk 2 is driven to rotate through a motor 3 fixed to its lower seat wall at the central position of the pedestal 1. Stamping tool assemblies 4 for forming hub castings are arranged on both the left and right sides of the pedestal 1; It also includes a bearing frame 5 and an automatic pressing and locking mechanism 10. The bearing frame 5 is vertically and upwardly fixedly connected above the pedestal 1. A main moving frame 6 slides horizontally back and forth on the guide rod in the bearing frame 5 under the drive of a first hydraulic cylinder 7. A secondary moving frame 8 slides vertically back and forth in the middle of the main moving frame 6 under the drive of a second hydraulic cylinder 9. The automatic pressing and locking mechanism 10 drives the top mold 11 fixed thereto to form a rotating structure on the horizontal frame in the secondary moving frame 8. And a bottom mold 12 fixedly connected to the transmission disk 2 is correspondingly arranged directly below the top mold 11. The automatic pressing and locking mechanism 10 is arranged vertically downward. The automatic pressing and locking mechanism 10, the top mold 11, and the bottom mold 12 are on the same vertical central axis. The automatic pressing and locking mechanism 10 cooperates with the top mold 11 to automatically pick up and fix the spoke center hole in the hub casting in a pressing and locking manner, and it drives the hub casting to directly dock with the bottom mold 12 for positioning and fixing during the feeding process.

[0022] Specifically, in this technical solution, when performing the feeding or taking operation of the hub casting, according to Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, a conveyor belt for hub castings is arranged behind the pedestal 1 (the conveyor belt is a prior art and is not described in the attached drawings of the specification). Since guide rods are inserted and fixedly connected by bolts on both the upper and lower sides of one side wall of the bearing frame 5, and the two guide rods on the upper and lower sides are arranged in parallel and form a group. The guide rods in the bearing frame 5 are symmetrically arranged about the vertical central axis of the bearing frame 5, and there are two groups of guide rods on the left and right. Also, since two sets of sleeve parts are respectively arranged on the left and right sides of the main moving frame 6, and each set of sleeve parts is further divided into upper and lower sleeve parts. After the main moving frame 6 is arranged, each sleeve part corresponds to each guide rod one by one, and the sleeve part is movably penetrated and sleeved on the guide rod in the bearing frame 5, so that the main moving frame 6 is in a horizontal state and is movably positioned on the bearing frame 5; Since the first hydraulic cylinder 7 is symmetrically arranged left and right with respect to the vertical central axis of the bearing frame 5, and the first hydraulic cylinder 7 is arranged in a horizontal and backward state after installation, it is fixedly installed on the front side wall of the bearing frame 5 by bolts, and its output end is inserted and fixedly connected between the upper and lower sleeve parts of the main support frame 6 by bolts. When the first hydraulic cylinder 7 starts to extend and operate, the sleeve parts in the main support frame 6 slide on the guide rods in the bearing frame 5, and the main support frame 6 moves along the guide rods in the bearing frame 5 towards the conveyor belt and moves to directly above the hub casting on the conveyor belt; Since the upper side wall of the main support frame 6 is vertically provided with an integrated "L"-shaped frame, and the "L"-shaped frame is symmetrically arranged left and right with respect to its vertical central axis, and since the auxiliary support frame 8 is in a "U"-shaped structure, which is divided into a longitudinal frame body and a transverse frame body, and the longitudinal frame body is arranged in a square frame structure. After the auxiliary support frame 8 is installed, the longitudinal frame body thereof is movably inserted and clamped in the middle of the main support frame 6, and the two "L"-shaped frames in the main support frame 6 are respectively movably clamped in the frame cavities of the two longitudinal frame bodies in the auxiliary support frame 8, so that the auxiliary support frame 8 is in a vertical state and is movably positioned on the main support frame 6; Since the second hydraulic cylinder 9 is symmetrically arranged left and right with respect to the vertical central axis of the main support frame 6, and the second hydraulic cylinder 9 is arranged in a vertically upward state after installation, it is fixedly installed on the "L"-shaped frame in the main support frame 6 by bolts, and its output end is inserted and fixedly connected to the frame cavity wall of the longitudinal frame body in the auxiliary support frame 8 by bolts. When the second hydraulic cylinder 9 starts to contract and operate, the auxiliary support frame 8 slides downward in the middle of the main support frame 6, and the automatic locking mechanism 10 is docked with the hub casting on the conveyor belt. After the automatic locking mechanism 10 is inserted into the spoke center opening of the hub casting, the hub casting is automatically picked up and fixed in a locking manner through the mutual cooperation with the top mold 11; According to the above, after the automatic locking mechanism 10 locks the hub casting, first start the second hydraulic cylinder 9 to extend and operate, so that the auxiliary support frame 8 drives the hub casting to slide upward on the main support frame 6, and then start the first hydraulic cylinder 7 to contract and operate, so that the main support frame 6 drives the hub casting to move towards the bottom mold 12 on the bearing frame 5 and moves to directly above the bottom mold 12. Finally, start the second hydraulic cylinder 9 to contract and operate, so that the auxiliary support frame 8 drives the hub casting to slide downward, and the hub casting is docked and sleeved on the bottom mold 12 to complete the discharging operation of the hub casting. Similarly, conversely, the picking operation of the hub casting is completed.

[0023] Specifically, in this technical solution, when the automatic locking mechanism 10 performs the locking type automatic picking and fixing operation on the hub casting, according to Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 11As shown, since the center positions of the shell frame 13 and the top mold 11 are intersected and fixedly connected together by bolts, after the automatic pressing and locking mechanism 10 is docked with the hub casting, the shell frame 13 movably penetrates through the spoke center opening in the hub casting, so that the top mold 11 is clamped and pressed against the spokes in the hub casting; Since the longitudinal section of the pusher 17 is in a "convex" shape structure, which is divided into two parts, a wide part and a narrow part, and after being placed, it movably plugs into the upper shell cavity of the shell frame 13. Also, since the electric telescopic rod 19 is externally connected to the circuit through a rotary joint (where the rotary joint is a prior art and is not described in the specification drawings), the electric telescopic rod 19 is placed vertically downward in the upper shell cavity of the shell frame 13, and it is fixedly connected to the shell cavity wall of the shell frame 13 by bolts, and its output end is inserted and fixedly connected to the wide part of the pusher 17 by bolts. When the electric telescopic rod 19 is started to extend and operate, the pusher 17 slides downward in the upper shell cavity of the shell frame 13; Since a second spring 18 for transmission is provided between the pusher 17 and the linkage column 15, both the upper and lower ends of the second spring 18 are provided with integrated circular ring parts. After being placed, the second spring 18 is movably sleeved outside the pressure rod 20. The circular ring part at its lower end is clamped and fixedly connected to the upper end of the linkage column 15 by bolts, and the circular ring part at its upper end is movably sleeved on the narrow part of the pusher 17. After the pusher 17 is driven to slide downward, the second spring 18 pushes and squeezes the linkage column 15 to move synchronously; Since blocking blocks are clamped and fixedly connected to the left and right sides of the lower shell of the shell frame 13 by bolts, a spring chamber is opened in the lower column body of the linkage column 15. Through holes are opened on the left and right sides of the lower column body of the linkage column 15, and the through holes are communicated with the spring chamber. The cross-section of the linkage column 15 is in a square structure. After being placed, it movably engages in the lower shell cavity of the shell frame 13, and the blocking blocks in the shell frame 13 movably penetrate through the through holes and insert into the spring chamber, and are in a movable positioning state. Also, since a first spring 16 is installed at the sliding connection between the linkage column 15 and the shell frame 13, after being placed, the first spring 16 movably inserts into the spring chamber in the linkage column 15, one end of it presses against the wall of the spring chamber, and the other end presses against the blocking block in the shell frame 13. After the linkage column 15 is driven to slide downward in the lower shell cavity of the shell frame 13, the spring constant of the second spring 18 is greater than that of the first spring 16. After the second spring 18 pushes and squeezes the linkage column 15 to move downward and slide, the first spring 16 is squeezed and elastically deformed; Since rack portions 1501 with an integrated structure are provided on the front, rear, left, and right sides of the linkage column 15, and since four claw members 14 are arranged in an annular array at the lower section of the shell frame 13 with the center of the shell frame 13 as the center of the circle, and an integrated structure gear portion 1401 is provided at one end of the claw member 14 close to the linkage column 15, each gear portion 1401 is respectively arranged in one-to-one correspondence with each rack portion 1501, and the gear portion 1401 and the rack portion 1501 are meshed and connected together. After the linkage column 15 slides downward, through the meshing action between the gear portion 1401 and the rack portion 1501, the claw member 14 is driven to move; Since a rubber pad is clamped and fixedly connected by bolts at one end of the claw member 14 away from the linkage column 15, and a shaft column is rotatably connected at one end of the claw member 14 close to the linkage column 15, and after being installed, it is movably clamped in the storage bin in the shell frame 13, and both ends of the shaft column are respectively inserted and fixedly connected by bolts on the two side walls of the storage bin. Also, since the center of the gear portion 1401 coincides with the flipping center of the claw member 14, after being driven, the claw member 14 is flipped and unfolded on the shell frame 13 with the assistance of the shaft column, and after being flipped and unfolded, it cooperates with the top mold 11 to press and lock the spoke in the hub casting. Through the rubber pad thereon, non-damaging pressing and locking are carried out to complete the press-lock type automatic picking and fixing of the hub casting; Since the first inclined tongue lock 21 is arranged in an annular array with the center of the shell frame 13 as the center of the circle, the cross-section of the first inclined tongue lock 21 is in a "convex" shape structure, and the inclined side wall of the inclined tongue end is arranged in an upward state, and after being installed, it is movably clamped in the lower groove cavity of the shell frame 13. Also, since a third spring 22 is installed at the sliding connection between the first inclined tongue lock 21 and the shell frame 13, the third spring 22 is symmetrically arranged about the horizontal central axis of the first inclined tongue lock 21, and after being installed, the third spring 22 is movably inserted into the spring bin in the first inclined tongue lock 21, one end of it presses against the wall of the spring bin, and the other end presses against the wall of the lower groove cavity of the shell frame 13. When the linkage column 15 slides downward and contacts the first inclined tongue lock 21, through the inclined side wall of the inclined tongue end in the first inclined tongue lock 21, the first inclined tongue lock 21 is pushed and squeezed to slide and contract at the lower end of the shell frame 13, and the third spring 22 is elastically deformed under extrusion. When the linkage column 15 completely slides downward and loses the pushing force on the first inclined tongue lock 21, through the elastic deformation reset of the third spring 22, the first inclined tongue lock 21 slides out at the lower end of the shell frame 13, and the inclined tongue end of the first inclined tongue lock 21 is clamped and connected to the lower end of the linkage column 15 to lock the downward-slided linkage column 15 and keep the claw member 14 in a flipped and unfolded state, that is, keep the pressing and locking of the hub casting.

[0024] Specifically, in this technical solution, when unlocking the hub casting through the automatic press-lock mechanism 10, according to the above, based on Figure 6 、 Figure 7 、 Figure 10 andFigure 11 As shown, since the pressure rod 20 is divided into a rod body part and a disc body part on the same vertical central axis as the rod body part, after the pressure rod 20 is installed, the rod body part movably penetrates through the middle of the linkage column 15, and the disc body part is placed outside the lower end of the pipe shell frame 13. And the upper end of the rod body part is inserted and fixedly connected to the narrow part of the pusher 17 through bolts. When the electric telescopic rod 19 starts to contract and operate, the pusher 17 slides upward in the upper shell cavity of the pipe shell frame 13, driving the pressure rod 20 to slide upward synchronously, and making the rod body part of the pressure rod 20 slide on the linkage column 15. At this time, the ring part at the upper end of the second spring 18 slides on the narrow part of the pusher 17; Since an integrated extrusion part 2001 is vertically upward arranged on the upper side wall of the disc body part of the pressure rod 20, the extrusion parts 2001 are arranged in an annular array with the center of the pressure rod 20 as the center of the circle, and each extrusion part 2001 is arranged in a one-to-one correspondence with each first inclined tongue lock 21. Also, since an auxiliary groove 2101 is opened in the middle of the first inclined tongue lock 21, one side wall of the groove cavity of the auxiliary groove 2101 is inclined, and the upper end of the extrusion part 2001 is provided with an inclined side wall. The inclined side wall in the extrusion part 2001 is adapted to the inclined side wall in the auxiliary groove 2101 and is in a corresponding state. After the pressure rod 20 is driven to slide upward, the extrusion part 2001 penetrates into the auxiliary groove 2101. Through the mutual cooperation of the inclined side wall in the extrusion part 2001 and the inclined side wall in the auxiliary groove 2101, the extrusion part 2001 presses against the auxiliary groove 2101, and the first inclined tongue lock 21 slides and contracts at the lower end of the pipe shell frame 13. The first inclined tongue lock 21 releases the locking of the linkage column 15, and by using the spring deformation and reset of the first spring 16, the linkage column 15 slides upward and resets in the lower shell cavity of the pipe shell frame 13; Since storage bins are opened on the front, back, left, and right sides of the lower shell of the pipe shell frame 13, four claw parts 14 are arranged in an annular array, and each claw part 14 is arranged in a one-to-one correspondence with each storage bin in the pipe shell frame 13. After the linkage column 15 slides upward and resets, by using the meshing action between the rack part 1501 and the gear part 1401, the claw parts 14 can be turned and folded and stored in the storage bins in the pipe shell frame 13, without hindering the docking and penetration of the pipe shell frame 13 with the spoke center opening in the hub casting, nor hindering the extraction of the pipe shell frame 13 from the spoke center opening in the hub casting, thus completing the unlocking operation of the hub casting.

[0025] Specifically, in this technical solution, when performing rotary stamping operation on the hub casting, according to Figure 1 、 Figure 2 、 Figure 4 and Figure 11As shown, the automatic locking mechanism 10 cooperates with the top mold 11 to press and lock the hub casting, and the hub casting is sleeved in butt joint with the bottom mold 12. Since the transmission disc 2 is arranged in a square structure, an integrated shaft column part is vertically arranged at the center position of its lower side wall, and bearings are fixedly clamped at both the upper and lower ends of the shaft column part. After the transmission disc 2 is placed, the shaft column part together with the bearings passes through the central position of the pedestal 1 in an active state and is arranged in an active positioning state on the pedestal 1. Also, since the motor 3 is arranged in a vertically upward state after being placed, it is fixedly connected to the lower seat wall of the pedestal 1 through bolts, and its output end is inserted and fixedly connected to the shaft column part of the transmission disc 2 through bolts. When the motor 3 is started to operate, the transmission disc 2 rotates at the central position of the pedestal 1; Since a positioning ring part of an integrated structure protrudes from the middle section of the shell of the pipe shell frame 13, bearings are fixedly clamped on both the upper and lower sides of the positioning ring part. After the pipe shell frame 13 is placed, its lower section passes through the middle part of the transverse frame of the auxiliary moving frame 8 in an active state and extends downward, and the positioning ring part together with the bearings is actively clamped in the middle part of the transverse frame of the auxiliary moving frame 8, so that the pipe shell frame 13 is arranged in an active positioning state on the auxiliary moving frame 8, and the pipe shell frame 13 forms a rotating structure in the middle part of the transverse frame of the auxiliary moving frame 8; Since the bottom mold 12 is clamped and fixedly connected to the transmission disc 2 through bolts after being placed, and the two are on the same vertical central axis. After the transmission disc 2 is driven, it drives the bottom mold 12 to form a rotating structure on the pedestal 1, that is, the bottom mold 12, the top mold 11 and the automatic locking mechanism 10 form a synchronous rotating structure; Since the stamping tool assembly 4 is arranged in a vertically upward state on the upper seat wall of the pedestal 1 after being placed, and the left and right two stamping tool assemblies 4 are on the same horizontal central axis as the bottom mold 12. The tool heads in the stamping tool assembly 4 can be driven to perform longitudinal sliding adjustment and transverse sliding adjustment, and cooperate with the shape of the hub to perform rotary stamping operation (this is the prior art and is not described in the specification drawings), and complete the rotary stamping treatment of the hub casting; In addition, both the top mold 11 and the bottom mold 12 can be replaced to cooperate with different hub castings.

[0026] Embodiment 2:

[0027] Based on Embodiment 1 of the present invention, please refer to Figures 12 - 14 the technical solution shown to address the problem that when the hub casting is demolded, the force is uneven, it is not convenient to demold, resulting in damage to the hub casting. The automatic locking mechanism 10 is used to lift and demold the spoke in the hub casting, and the removal part 23 is used to push and demold the rim in the hub casting, and the two cooperate to perform uniform force and convenient demolding.

[0028] Specifically, in this technical solution, when performing the demolding operation of the hub casting, according to Figure 12 、 Figure 13and Figure 14 As shown in Figure 14 , after the clamping jaw member 14 completes the pressing and locking process on the hub casting, the electric telescopic rod 19 continues to extend and operate. The pressing rod 20 is driven to slide out, causing the second spring 18 to be elastically deformed by extrusion. Since semi-ring sleeves 25 are provided on both the left and right sides of the upper end of the columnar portion of the removal member 23, the size of the annular cavity formed by the combination of the two semi-ring sleeves 25 is adapted to the diameter of the disc portion in the pressing rod 20. After the pressing rod 20 slides out, its disc portion is inserted into the annular cavity formed by the combination of the two semi-ring sleeves 25; Since a pipe groove portion 1201 is provided at the central position of the bottom mold 12, in the initial state, the semi-ring sleeve 25 is placed in the lower pipe groove cavity of the pipe groove portion 1201 and is in pressure contact and fit connection with the lower pipe groove wall of the pipe groove portion 1201, so that the two semi-ring sleeves 25 are set in a closed state and combined to form an annular cavity; Since the longitudinal section of the second inclined tongue lock 27 is in an "L" shape structure, after it is installed, it is movably clamped in the middle groove cavity of the semi-ring sleeve 25, and its inclined tongue end extends into the annular cavity formed by the combination of the two semi-ring sleeves 25. The inclined side wall of the inclined tongue end in the second inclined tongue lock 27 is set in an upward state. Also, since a fifth spring 28 is installed at the sliding connection between the semi-ring sleeve 25 and the second inclined tongue lock 27, after the fifth spring 28 is installed, it is movably inserted into the spring chamber of the second inclined tongue lock 27. One end of it abuts against the spring chamber wall, and the other end abuts against the groove cavity wall of the semi-ring sleeve 25. When the disc portion of the pressing rod 20 contacts the second inclined tongue lock 27, through the inclined side wall of the inclined tongue end in the second inclined tongue lock 27, the second inclined tongue lock 27 is pushed and squeezed to contract and slide in the middle of the semi-ring sleeve 25, and the fifth spring 28 is elastically deformed by extrusion. When the disc portion of the pressing rod 20 loses the pushing force on the second inclined tongue lock 27, the second inclined tongue lock 27 slides out in the middle of the semi-ring sleeve 25 by using the elastic deformation reset of the fifth spring 28, and the inclined tongue end of the second inclined tongue lock 27 is connected to the disc portion of the pressing rod 20 in a clamping manner, locking the disc portion of the pressing rod 20 and the semi-ring sleeve 25 together; Since the removal member 23 is composed of two parts, namely a columnar portion and an annular portion concentric with the columnar portion, connecting plates for connecting the two are arranged at equal angles between the columnar portion and the annular portion of the removal member 23. After the removal member 23 is installed, its columnar portion is movably inserted into the pipe groove portion 1201, and its annular portion is movably sleeved on the outside of the bottom mold 12, so that the removal member 23 is set in a movable positioning state on the bottom mold 12; Since a fourth spring 24 is installed at the sliding connection between the removal member 23 and the bottom mold 12, the fourth spring 24 is movably inserted into the spring bin of the bottom mold 12 after being placed. One end of it abuts against the wall of the spring bin, and the other end abuts against the middle column part of the removal member 23. When the electric telescopic rod 19 starts to contract and operate, the second spring 18 restores its elastic deformation, causing the pressing rod member 20 to reset and contract and slide. Through the locking between the pressing rod member 20 and the semi-ring sleeve 25, when the pressing rod member 20 resets and contracts and slides, it pulls the removal member 23 to move synchronously, so that the middle column part of the removal member 23 slides in the pipe groove part 1201, and the middle ring part of the removal member 23 slides outside the bottom mold 12, and the fourth spring 24 is compressed to generate elastic deformation, pushing and demolding the hub casting; When the electric telescopic rod 19 contracts and operates, the second hydraulic cylinder 9 is synchronously started to extend and operate, so that the auxiliary moving frame 8 drives the automatic pressure locking mechanism 10 to move upward. That is, when the removal member 23 pushes and demolds the rim in the hub casting, the automatic pressure locking mechanism 10 synchronously lifts and demolds the spoke in the hub casting; Since the upper section of the pipe groove part 1201 is in a flared structure and its flared section is in an open state, and since an integrally structured connecting block is provided in the middle of the lower side of the semi-ring sleeve 25, and a shaft column is rotatably connected to the connecting block. After the semi-ring sleeve 25 is placed, the connecting block is movably clamped in the groove cavity at the upper end of the middle column part of the removal member 23, and both ends of the shaft column are respectively inserted and fixedly connected to the two side groove cavity walls at the upper end of the middle column part of the removal member 23 through bolts. Also, since a torsion spring 26 is installed at the flipping connection between the middle column part of the removal member 23 and the semi-ring sleeve 25, the torsion spring 26 is movably sleeved on the shaft column of the semi-ring sleeve 25 after being placed. One end of it is clamped on the semi-ring sleeve 25, and the other end is clamped on the upper end of the middle column part of the removal member 23. After the removal member 23 is pulled and slides, when the semi-ring sleeve 25 moves to the flared section of the pipe groove part 1201, it loses its limit, and uses the elastic deformation of the torsion spring 26 to reset, so that the two semi-ring sleeves 25 flip and unfold in opposite directions on the middle column part of the removal member 23, and the second inclined tongue lock 27 loses the engaging connection with the middle disc part of the pressing rod member 20, releasing the locking between the middle disc part of the pressing rod member 20 and the semi-ring sleeve 25. After the pressing rod member 20 is disengaged, the hub casting is taken out through the automatic pressure locking mechanism 10; Since the stiffness coefficient of the fourth spring 24 is greater than that of the torsion spring 26, after the locking between the middle disc part of the pressing rod member 20 and the semi-ring sleeve 25 is released, the elastic deformation of the fourth spring 24 is used to reset, so that the removal member 23 slides back to its original position on the bottom mold 12, and the semi-ring sleeve 25 flips back to its initial state on the middle column part of the removal member 23.

[0029] This is the entire working process of the stamping device for post-processing of the casting. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A stamping device for post-treatment of castings, comprising: A pedestal (1), a transmission disk (2) is rotatably connected at the central position of the pedestal (1) driven by a motor (3) fixed to its lower seat wall, and stamping tool assemblies (4) for forming hub castings are arranged on both the left and right sides of the pedestal (1); It is characterized in that it further comprises: A bearing frame (5), the bearing frame (5) is fixedly connected vertically upward directly above the pedestal (1), a main moving frame (6) slides horizontally back and forth on the guide rod in the bearing frame (5) driven by a first hydraulic cylinder (7), and a secondary moving frame (8) slides vertically back and forth in the middle of the main moving frame (6) driven by a second hydraulic cylinder (9); An automatic pressing and locking mechanism (10), the automatic pressing and locking mechanism (10) drives a top mold (11) fixed thereto to form a rotating structure on the transverse frame in the secondary moving frame (8), and a bottom mold (12) fixedly connected to the transmission disk (2) is correspondingly arranged directly below the top mold (11). The automatic pressing and locking mechanism (10) cooperates with the top mold (11) to automatically pick up and fix the center opening of the spoke in the hub casting, and it drives the hub casting to be directly docked with the bottom mold (12) for positioning and fixing during feeding; Among them, the automatic pressing and locking mechanism (10) includes a tube shell frame (13) rotatably connected to the middle of the transverse frame in the secondary moving frame (8) and pressing claw members (14) arranged in an annular array with the center of the tube shell frame (13) as the center at the lower section of the tube shell frame (13). The pressing claw members (14) are formed into a flipping structure on the tube shell frame (13) with the assistance of shaft columns, and their flipping and unfolding cooperate with the top mold (11) to press and lock the spoke in the hub casting.

2. The stamping device for post-treatment of castings according to claim 1, characterized in that: The center positions of the tube shell frame (13) and the top mold (11) are inserted and fixedly connected together by bolts. A linkage column (15) is slidably connected in the lower shell cavity of the tube shell frame (13), and a first spring (16) is installed at their sliding connection; Among them, one end of the pressing claw member (14) close to the linkage column (15) is provided with an integrally formed gear portion (1401), and the gear portion (1401) is meshed and connected with a rack portion (1501) integrally formed on the linkage column (15).

3. The stamping device for post-treatment of castings according to claim 2, characterized in that: A pushing member (17) is slidably connected in the upper shell cavity of the tube shell frame (13) driven by an electric telescopic rod (19), and a second spring (18) for transmission is arranged between the pushing member (17) and the linkage column (15). The spring constant of the second spring (18) is greater than that of the first spring (16).

4. The stamping device for post-treatment of castings according to claim 3, wherein: The linkage column (15) is connected to the rod body portion of the pressing rod member (20) in a sliding manner, and the upper end of the rod body portion of the pressing rod member (20) is fixedly connected to the narrow portion of the pushing member (17) by bolts. An extrusion portion (2001) integrally formed is vertically upward arranged on the upper side wall of the disk body portion of the pressing rod member (20), and the extrusion portion (2001) is connected to an auxiliary groove (2101) opened in the middle of the first inclined tongue lock (21) in an inserted and pressed manner; The first oblique tongue lock (21) forms a telescopic sliding structure at the lower end of the tube shell frame (13), a third spring (22) is installed at the sliding connection between the two, and the oblique tongue end of the first oblique tongue lock (21) is engaged and connected with the lower end of the linkage column (15).

5. A stamping device for post-treatment of castings according to claim 4, characterized in that: The upper end of the extrusion portion (2001) is provided with an inclined side wall, and the inclined side wall in the extrusion portion (2001) and the inclined side wall in the auxiliary groove (2101) are adapted to be arranged in a corresponding state.

6. The stamping device for post-treatment of castings according to claim 4, wherein: A tube groove portion (1201) is provided at the central position of the bottom mold (12), wherein the upper section of the tube groove portion (1201) is in a trumpet-shaped structure, and a removal piece (23) for pushing and demoulding the wheel hub casting is slidably connected to the lower end of the bottom mold (12), and a fourth spring (24) is installed at the sliding connection between the two.

7. A stamping device for post-treatment of castings according to claim 6, characterized in that: The column body of the removal piece (23) is movably inserted into the tube groove (1201), and the ring body of the removal piece (23) is movably sleeved on the outside of the bottom mold (12). The left and right sides of the upper end of the column body of the removal piece (23) are both flipped and connected with semi-ring sleeves (25), and a torsion spring (26) is installed at the flip connection between the two.

8. A stamping device for post-treatment of castings according to claim 7, characterized in that: The semi-annular sleeve (25) is pressed and connected with the lower tube groove wall of the tube groove portion (1201), and the middle part of the semi-annular sleeve (25) is telescopically and slidably connected with the second oblique tongue lock (27), and a fifth spring (28) is installed at the sliding connection between the two, and the oblique tongue end of the second oblique tongue lock (27) is connected with the middle plate body of the pressure rod member (20) in a snap-fit ​​manner.

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