An energy storage floating self-adaptive large-scale construction machinery profiled die

Abstract

The present invention discloses an energy-storage floating adaptive large-scale engineering machinery profiling die, comprising an upper die and a lower die. The upper die comprises an upper die body and an upper die block, while the lower die comprises a lower die body and a lower die block. The lower die body is provided with a stripper plate, an energy-storage adaptive mechanism, a position limiting mechanism, and an upper stripper mechanism. Both the upper and lower die bodies are provided with components that cooperate with a hydraulic press. The large-scale die of the present invention allows a single person to insert a large workpiece into a designated position in the die and easily withdraw the workpiece after profiling. After profiling is complete, the workpiece can be conveniently separated from the upper and lower die blocks. The present invention can reduce production costs, improve work efficiency, and reduce the risks of operating under a hydraulic press.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical moulds, and in particular to an energy-storage floating self-adaptive large-scale engineering machinery pressing mould. Background Art

[0002] At present, there are the following problems in large-scale forming molds for engineering machinery: First, the mold body is usually made of castings, which is not only costly but also unsuitable for making molds with complex structures; second, after a large workpiece is fed into the forming mold with a roller, it is particularly difficult to move and position the workpiece in the mold due to its large size and weight, requiring multiple people to operate, and it is very dangerous for operators to operate under the hydraulic press; third, due to the large size of the workpiece, the upper material removal mechanism of the large forming mold needs to be separately made with a complex structure, and the material removal effect is not good. Summary of the Invention

[0003] The purpose of the present invention is to provide an energy-storage floating adaptive large-scale engineering machinery pressing mold, which can easily send the workpiece into and out of the mold by one person, thereby reducing labor costs and avoiding the risk of multiple people operating under the hydraulic press.

[0004] To achieve the above purpose, the present invention provides an energy storage floating adaptive large-scale engineering machinery pressing die, comprising an upper die and a lower die, wherein:

[0005] The upper mold includes an upper mold body and an upper module. The upper mold body is a square frame. There are two upper modules, which are respectively installed on the bottom of the left and right sides of the upper mold body and are arranged in parallel.

[0006] The lower mold includes a lower mold body, a lower die block, an energy storage adaptive mechanism, a stripper plate and a limiting mechanism. The lower mold body is a square frame, and the stripper plate is placed on the lower mold body; there are two lower die blocks, which are respectively installed on the lower mold body and on the left and right sides of the stripper plate; there are multiple energy storage adaptive mechanisms, which are installed at the bottom of the stripper plate;

[0007] The energy storage adaptive mechanism includes a main structure, a cylinder, a cylinder with a platform, a compression spring, a sealing plate, a limit screw and a universal bearing; the main structure includes a base, a vertical plate installed on the base and a surrounding plate installed on the vertical plate; the cylinder is open at the upper and lower ends and is placed inside the main structure; the lower end of the cylinder with a platform is open, and a circular boss is installed at the upper end, and the circular boss includes an upper circular table and a lower pedestal; the cylinder with a platform is sleeved in the cylinder, and the circular boss is at the upper part; the compression spring is located in the cavity formed by the cylinder and the cylinder with a platform, and the compression spring The bottom is in contact with the base, and the upper part is in contact with the bottom surface of the circular boss of the cylinder with a platform; the lower surface of the closing plate is fixedly connected to the upper end of the vertical plate, and the upper surface is connected to the bottom surface of the stripper plate by bolts; vertical long strip limiting holes are provided on both symmetrical sides of the cylinder, and the limiting screws pass through the limiting holes and are connected to the cylinder with a platform; a circular opening is provided in the middle of the closing plate, the closing plate is in contact with the base of the circular boss, the circular platform is located in the circular opening, and the bottom of the universal bearing is fixedly connected to the circular platform; a circular hole is provided on the stripper plate, and the universal bearing is located in the circular hole and can float up and down;

[0008] There are multiple limiting mechanisms for limiting the stripping plate to float up and down within a limited range on the lower mold body; the limiting mechanism includes a limiting plate and a limiting pin, the limiting plate is fixed on the inner side of the side of the lower mold body, and the plate surface is parallel to the bottom surface of the stripping plate, the limiting pin passes through the limiting plate, and its end is threadedly connected to the bottom of the stripping plate.

[0009] Furthermore, it also includes a fixed plate and a bottom plate, wherein the fixed plate is installed on the left and right side surfaces of the upper mold body for connecting to the upper slider of the hydraulic press; the bottom plate is installed on the left and right side surfaces of the lower mold body for connecting to the workbench of the hydraulic press.

[0010] Furthermore, it also includes a plurality of ejector rods, which are placed in the ejector holes of the hydraulic press workbench before the mold is installed.

[0011] Furthermore, the upper mold body is provided with a M-shaped reinforcement rib; the lower mold body is provided with a T-shaped reinforcement rib.

[0012] Furthermore, it also includes multiple upper material return mechanisms, which are installed on both sides of the lower mold body and arranged along the edge line of the lower mold body; the upper material return mechanism includes a mounting plate, a hook plate and a long tube, the mounting plate is fixedly connected to the outer side of the lower mold body, and the hook plate is connected to the mounting plate through a pin; a connecting hole is opened on the hook plate, and the long tube passes through the connecting hole to connect multiple hook plates.

[0013] Furthermore, it also includes a mold guiding mechanism, which includes a mold guiding plate and a guide groove fixing plate. The mold guiding plate is installed on the outer side of the upper mold body, and the guide groove fixing plate is installed on the outer side of the lower mold body. The mold guiding plate cooperates with the guide groove fixing plate to limit the upper mold and the lower mold after they are combined; a guide groove wear-resistant lining is fixed on the guide groove fixing plate.

[0014] Furthermore, it also includes a positioning plate, which is installed on the lower mold body and is used to position the workpiece.

[0015] The beneficial effects of the present invention are:

[0016] (1) By setting multiple energy storage adaptive mechanisms on the lower mold body, which cooperate with the stripping mechanism, when the workpiece is fed between the upper and lower molds, the universal bearing on the energy storage adaptive mechanism is higher than the stripping plate surface under the support of the compression spring, and the workpiece can be easily moved on multiple universal bearings to reach the designated limit position; after the workpiece is pressed, the pressure under the upper mold disappears, and the universal bearing will be higher than the stripping plate surface again. The workpiece is still supported by the universal bearing. Therefore, it can be easily pulled out from the lower mold by one person. On the one hand, it can save the number of operators and reduce costs. On the other hand, it also reduces the risks faced by people operating under the hydraulic press.

[0017] (2) A limiting mechanism is provided so that the stripper plate can float up and down a certain distance relative to the lower die body. After the workpiece is pressed, the stripper plate can eject the workpiece from the two lower die blocks, allowing it to separate from the lower die blocks and float freely on multiple universal bearings.

[0018] (3) An upper material return mechanism is provided to prevent the workpiece from being stuck between the two upper modules when the workpiece is withdrawn from the upper module. The workpiece can be easily separated from the upper module through the hook plate of the upper material return mechanism.

[0019] (4) The mold guide mechanism is set up to ensure that the upper mold and the lower mold do not move forward, backward, left or right when they are aligned, thereby ensuring the pressing quality of the workpiece.

[0020] (5) The upper mold body and the lower mold body are welded together by structural parts and reinforcing ribs, which avoids the casting production method in the existing technology. On the one hand, it can reduce the production cost, and on the other hand, it can easily design complex structural forms. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the energy storage floating self-adaptive large-scale engineering machinery pressing die of the present invention;

[0022] Figure 2 is a side view of the lower mold;

[0023] Figure 3 It is a top view of the lower die;

[0024] Figure 4 It is a sectional view of the energy storage adaptive mechanism;

[0025] Figure 5 It is another sectional view of the energy storage adaptive mechanism;

[0026] Figure 6 It is a structural schematic diagram of the limit mechanism;

[0027] Figure 7 It is a structural schematic diagram of the upper blanking mechanism.

[0028] In the figure, 1 - upper die, 10 - upper die main body, 11 - upper die block, 12 - fixing plate, 13 - die guiding plate, 2 - lower die, 20 - lower die main body, 21 - lower die block, 22 - energy storage adaptive mechanism, 220 - main body structure, 2201 - base, 2202 - vertical plate, 2203 - enclosing plate, 221 - cylinder, 222 - cylinder with platform, 2221 - frustum of a cone, 2222 - pedestal, 223 - compression spring, 224 - sealing plate, 225 - limit screw, 226 - universal bearing, 23 - blanking plate, 24 - limit mechanism, 241 - limit plate, 242 - limit pin, 25 - blanking rod, 26 - upper blanking mechanism, 261 - mounting plate, 262 - hook plate, 263 - long tube, 27 - guiding groove fixing plate, 271 - wear-resistant lining for guiding groove, 28 - bottom plate, 29 - positioning plate, 3 - workpiece. Specific embodiments

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] As Figure 1 shown, a large - scale construction machinery pressing die with energy storage floating adaptability includes an upper die 1 and a lower die 2. Among them, the upper die 1 includes an upper die main body 10 and two upper die blocks 11. The upper die main body 10 is a square frame. The upper die blocks 11 are respectively installed at the bottoms of the left and right sides of the upper die main body 10 and are arranged in parallel. The two upper die blocks 1 are used for pressing the workpiece 3. The upper die main body 10 is welded by various plates. In order to ensure the rigidity of the upper die main body 10, the upper die main body 10 adopts a reinforcing rib structure in a cross shape.

[0031] The lower die 2 includes a lower die main body 20, two lower die blocks 21, an energy storage adaptive mechanism 22, a blanking plate 23 and a limit mechanism 24. The lower die main body 20 is also a square frame, welded by various plates, and its size is similar to that of the upper die main body 10. The lower die main body 20 adopts a structure in a grid shape, that is, it is welded by multiple transverse plates and multiple longitudinal plates, and multiple square holes are formed inside.

[0032] The upper mold 1 and the lower mold 2 are made by a frame-type combined with reinforcing ribs, which is different from the casting type of the prior art. On the one hand, it reduces the production cost, and on the other hand, its design style is more convenient and free.

[0033] The stripper plate 23 is placed on the lower die body 20 and can move relative to the lower die body 20. The lower die blocks 21 are respectively installed on the lower die body 20 and on the left and right sides of the stripper plate 23 for performing a profiling process on the workpiece 3.

[0034] like Figure 1 As shown, the fixing plate 12 is mounted on the left and right sides of the upper mold body 10, and the fixing plate 12 is used to connect to the hydraulic press. The bottom plate 28 is mounted on the left and right sides of the lower mold body 20, and the bottom plate 28 is used to connect to the hydraulic press.

[0035] like Figure 3 As shown, a plurality of stripping rods 25 are installed at the bottom of the stripping plate 23. Before the mold is installed, the stripping rods 25 are placed in the stripping holes of the press workbench as required.

[0036] like Figure 1 As shown, this mold also includes two sets of mold guide mechanisms, located at the ends of a common diagonal line between the upper mold body 10 and the lower mold body 20. The mold guide mechanism includes a mold guide plate 13 and a guide groove fixing plate 27. The mold guide plate 13 is mounted on the outer side of the upper mold body 10, and the guide groove fixing plate 27 is mounted on the outer side of the lower mold body 20. The mold guide plate 13 and the guide groove fixing plate 27 cooperate to limit the position of the upper mold 1 and the lower mold 2 after they are combined. A guide groove wear-resistant lining plate 271 is fixed to the guide groove fixing plate 27 to increase the service life of the mold guide mechanism.

[0037] like Figure 3 As shown, four positioning plates 29 are further provided on the lower mold body 20. The positioning plates 29 are installed on two adjacent sides of the lower mold body 20 for positioning the workpiece 3. Two of them are set as forward positioning plates 29, and two are set as side positioning plates 29.

[0038] A plurality of energy storage adaptive mechanisms 22 are arranged at the bottom of the stripper plate 23. The structure of the energy storage adaptive mechanism 22 is as follows: Figure 4 and Figure 5As shown, it includes a main structure 220, a cylinder 221, a cylinder with a platform 222, a compression spring 223, a sealing plate 224, a stop screw 225, and a universal bearing 226. The main structure 220 comprises a base 2201, two vertical plates 2202 mounted on the base 2201, and two enclosure plates 2203 mounted on the vertical plates 2202. The main structure 220 supports the energy storage adaptive mechanism 22 and effectively protects the components within. The cylinder 221 is open at the top and bottom and is placed inside the main structure 220, with its bottom contacting the base 2201. The cylinder with a platform 222 is open at the bottom and has a circular boss mounted at the top. The circular boss consists of an upper circular platform 2221 and a lower pedestal 2222, with the circular platform 2221 located at the upper center of the pedestal 2222. The cylinder with a platform 222 is nested within the cylinder 221, with the circular boss at the top and the opening facing downward. The compression spring 223 is placed in the cavity formed by the cylinder 221 and the platform cylinder 222. The bottom of the compression spring 223 contacts the base 2201, and the top contacts the bottom surface of the circular boss of the platform cylinder 222. The closing plate 224 is fixedly connected to the upper end of the vertical plate 2202 downwardly, and is connected to the bottom surface of the stripper plate 23 upwardly by bolts. At this time, the compression spring 223 has a certain pre-tightening force under the downward pressure of the closing plate 224, that is, the compression spring 223 is in a compressed state. Vertical long strip limiting holes are provided on both symmetrical sides of the cylinder 221, and the limiting screws 225 pass through the limiting holes and are connected to the platform cylinder 222. The limiting screws 225 are used to limit the compression and extension of the compression spring 223. A circular opening is opened in the middle of the closing plate 224. The closing plate 224 contacts the base 2222 of the circular boss. The circular boss 2221 is located in the circular opening, and the bottom of the universal bearing 226 is fixedly connected to the circular boss 2221. A circular hole is formed on the stripping plate 23 , and the universal bearing 226 is located in the circular hole and can float up and down.

[0039] like Figure 6 Figure 2 shows a schematic diagram of the limiting mechanism 24. In this embodiment, multiple limiting mechanisms 24 are provided to limit the upward and downward movement of the stripper plate 23 on the lower mold body 20. The limiting mechanism 24 comprises a limiting plate 241 and a limiting pin 242. The limiting plate 241 is fixed to the inner side of the lower mold body 20, with its surface parallel to the stripper plate 23. The limiting pin 242 passes through the limiting plate 241, and its pin end is threadedly connected to the bottom of the stripper plate 23.

[0040] like Figure 7 Figure 2 shows the structure of the upper material return mechanism 26. Multiple upper material return mechanisms 26 are installed on both sides of the lower mold body 20 and arranged along the edge of the lower mold body 20. The upper material return mechanism 26 comprises a mounting plate 261, a hook plate 262, and a long tube 263. The mounting plate 261 is fixedly connected to the outer side of the lower mold body 20, and the hook plate 262 is connected to the mounting plate 261 via a pin. The hook plate 262 has a connecting hole, through which the long tube 263 passes, connecting the multiple hook plates 262.

[0041] The working process of this energy storage floating adaptive large-scale engineering machinery pressing die is as follows:

[0042] Before installing the mold assembly on the hydraulic press, place the ejector rod 25 in the ejection hole of the hydraulic press with the ejection device according to the position requirements, so that the upper part of the ejector rod 25 is lower than the upper part of the lower workbench of the hydraulic press, and place the mold assembly on the lower workbench of the hydraulic press. The upper mold body 10 is fixed to the upper slide of the hydraulic press through the U-shaped groove of the fixed plate 12, and the lower mold body 20 is fixed to the lower workbench of the hydraulic press through the U-shaped groove of the bottom plate 28.

[0043] Raise the upper mold 1, then raise the ejector device of the hydraulic press, and raise the stripper plate 23 until the limit stripper pin 242 touches the limit plate 241. After the workpiece 3 is partially fed into the mold through the roller, the workpiece 3 can be easily moved on the universal bearing 226 of the adaptive mechanism 22 by one person. At this time, the top surface of the universal bearing 226 is higher than the stripper plate 23. Due to the preload force of the compression spring 223, the workpiece 3 floats relative to the stripper plate 23.

[0044] Move the workpiece 3 so that its front is close to the two forward positioning plates 29 and its side is close to the side positioning plates 29, and the upper slider of the hydraulic press moves down to start pressing. When the upper mold body 10 is in contact with the workpiece 3, the universal bearing 226 also starts to fall relative to the stripping plate 23. When the workpiece 3 is pressed to the bottom, the universal bearing 226 is flush with the stripping plate 23, and the workpiece 3 is firmly attached to the stripping plate 23 and no longer floats.

[0045] After the forming process of the workpiece 3 is completed, the upper mold 1 is raised, the ejecting system of the hydraulic press is started, and the stripping plate 23 ejects the workpiece 3 from the lower module 21. At the same time, during the raising of the upper mold 1, the upper stripping mechanism 26 hooks the workpiece 3 from the upper module 11 through the hook plate 262. At this time, the workpiece 3 falls on the universal bearing 226 of the lower mold body 20. During the upward movement of the stripping plate 23, the universal bearing 226 gradually rises above the stripping plate 23. At this time, the workpiece 3 floats relative to the stripping plate 23. The workpiece 3 can be easily removed from the mold on the universal bearing 226 by one person.

[0046] To sum up, when the workpiece 3 is transported into the mold, one staff member can easily deliver the workpiece 3 to the specified position of the mold without the need for multiple operations, which also reduces the operating risks under the hydraulic press; after the workpiece 3 is pressed, the workpiece 3 can also be removed and withdrawn from the mold through the cooperation of the energy storage adaptive mechanism 22, the upper material return mechanism 26, and the limiting mechanism 24.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes that can be made within the scope of knowledge possessed by technicians in the relevant technical field without departing from the spirit of the present invention are all within the scope of protection of the claims of the present invention.

Claims

1. An energy storage floating adaptive large-scale engineering machinery pressing die, characterized in that: It comprises an upper mold (1) and a lower mold (2), wherein: The upper mold (1) comprises an upper mold body (10) and an upper module (11), wherein the upper mold body (10) is a square frame, and the upper modules (11) are two and are respectively mounted on the bottom of the left and right sides of the upper mold body (10) and are arranged in parallel; The lower mold (2) comprises a lower mold body (20), a lower die block (21), an energy storage adaptive mechanism (22), a stripping plate (23) and a limiting mechanism (24); the lower mold body (20) is a square frame, and the stripping plate (23) is placed on the lower mold body (20); there are two lower die blocks (21), which are respectively installed on the lower mold body (20) and on the left and right sides of the stripping plate (23); there are multiple energy storage adaptive mechanisms (22), which are installed at the bottom of the stripping plate (23); The energy storage adaptive mechanism (22) comprises a main structure (220), a cylinder (221), a cylinder with a platform (222), a compression spring (223), a sealing plate (224), a limit screw (225) and a universal bearing (226); the main structure (220) comprises a base (2201), a vertical plate (2202) mounted on the base (2201) and a surrounding plate (2203) mounted on the vertical plate (2202); The cylinder (221) is open at the upper and lower ends and is placed inside the main structure (220); the lower end of the cylinder with a platform (222) is open, and the upper end is provided with a circular boss, and the circular boss includes an upper circular platform (2221) and a lower pedestal (2222); the cylinder with a platform (222) is sleeved inside the cylinder (221), and the circular boss is at the upper end; the compression spring (223) is located between the cylinder (221) and the circular boss with a platform. In the cavity formed by the cylinder (222), the bottom of the compression spring (223) contacts the base (2201), and the upper part contacts the bottom surface of the circular boss of the cylinder with a platform (222); the lower surface of the sealing plate (224) is fixedly connected to the upper end of the vertical plate (2202), and the upper surface is connected to the bottom surface of the stripping plate (23) by bolts; vertical long strip limiting holes are provided on both symmetrical sides of the cylinder (221), and the limiting screws (225) are inserted through the holes. The said limiting hole is connected to the said belt cylinder (222); a circular opening is provided in the middle of the said sealing plate (224); the said sealing plate (224) contacts the pedestal (2222) of the said circular boss; the said circular boss (2221) is located in the said circular opening; the bottom of the said universal bearing (226) is fixedly connected to the said circular boss (2221); a circular hole is provided on the said stripping plate (23); the said universal bearing (226) is located in the said circular hole and can float up and down; There are multiple limiting mechanisms (24) for limiting the upper and lower floating of the stripping plate (23) on the lower die body (20); the limiting mechanism (24) includes a limiting plate (241) and a limiting pin (242); the limiting plate (241) is fixed to the inner side of the side of the lower die body (20), and the plate surface is parallel to the bottom surface of the stripping plate (23); the limiting pin (242) passes through the limiting plate (241), and the end thereof is threadedly connected to the bottom of the stripping plate (23); The energy storage floating adaptive large-scale engineering machinery pressing mold also includes: A plurality of ejector rods (25), wherein the ejector rods (25) are placed in ejector holes of the hydraulic press workbench before the mold is installed; A plurality of upper material-returning mechanisms (26) are provided, wherein the upper material-returning mechanisms (26) are installed on both sides of the lower mold body (20) and arranged along the edge line of the lower mold body (20); the upper material-returning mechanisms (26) include a mounting plate (261), a hook plate (262) and a long tube (263); the mounting plate (261) is fixedly connected to the outer side of the lower mold body (20); the hook plate (262) is connected to the mounting plate (261) via a pin; a connecting hole is provided on the hook plate (262); the long tube (263) passes through the connecting hole to connect the plurality of hook plates (262).

2. The energy storage floating adaptive large-scale engineering machinery pressing die according to claim 1 is characterized in that: It also includes a fixed plate (12) and a bottom plate (28), wherein the fixed plate (12) is mounted on the left and right side surfaces of the upper mold body (10) and is used to connect with the upper slider of the hydraulic press; and the bottom plate (28) is mounted on the left and right side surfaces of the lower mold body (20) and is used to connect with the workbench of the hydraulic press.

3. The energy storage floating adaptive large-scale engineering machinery pressing die according to claim 1 is characterized in that: The upper die body (10) is provided with a rice-shaped reinforcement rib; the lower die body (20) is provided with a field-shaped reinforcement rib.

4. The energy storage floating adaptive large-scale engineering machinery pressing die according to claim 1 is characterized in that: The mold guide mechanism also includes a mold guide plate (13) and a guide groove fixing plate (27). The mold guide plate (13) is installed on the outer side of the upper mold body (10), and the guide groove fixing plate (27) is installed on the outer side of the lower mold body (20). The mold guide plate (13) cooperates with the guide groove fixing plate (27) to limit the upper mold (1) and the lower mold (2) after they are combined; a guide groove wear-resistant lining plate (271) is fixed on the guide groove fixing plate (27).

5. The energy storage floating adaptive large-scale engineering machinery pressing die according to claim 1 is characterized in that: It also includes a positioning plate (29), which is installed on the lower mold body (20) and is used to position the workpiece (3).

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