Hydraulic cushion structure of a mechanical press

Abstract

The hydraulic cushion structure of the mechanical press machine comprises a base, side columns, an upper beam, a pull rod, a nut, guide rails, a sliding block and a crank connecting rod mechanism; four groups of side columns are arranged between the base and the upper beam, and the left and right two groups of side columns are connected with a group of sliding blocks through two groups of guide rails, the bottom end of the sliding block is connected with an upper workbench plate, the inner end is separated into an upper cabin and a lower cabin through a middle plate, the hydraulic cushion mechanism is arranged in the lower cabin, the transmission path of the force of the traditional press machine can be optimized, the structure of the sliding block is effectively simplified, the weight of the sliding block and the upper workbench plate is reduced, the wear of the guide rail is reduced, the service life of the assembly is effectively improved, the front end of the sliding block is connected with a protection mechanism, the protection mechanism comprises a connecting plate one, a transmission arm one, a connecting plate two, a transmission arm two and a protection plate and other assemblies, the protection plate can be driven to flip forward when the sliding block moves downward, the machining range is separated and protected, and the safety during production operation can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forging equipment, in particular to a hydraulic pad structure of a mechanical press. BACKGROUND

[0002] Forging equipment is an industrial equipment used for applying pressure to metal or other materials to cause plastic deformation or separation, and is widely used in the fields of automobile, aerospace, military industry, machinery manufacturing, etc. This kind of equipment realizes forging, stamping, extruding, bending, etc. through impact or static pressure to improve the strength, precision or forming of materials. Common forging equipment includes punch, screw press and hydraulic press, etc.

[0003] Some existing hydraulic presses adopt an upper air cushion structure or a double-action press scheme, and some dies have corresponding functions.

[0004] However, the outer size of the upper air cushion structure is mostly large, and the output force is small. The overall structure of the double-action press is relatively complex, and the cost is high. The manufacturing and use range is limited. Some dies have a blank holder function, but they need to be reconnected and controlled, which is relatively cumbersome and inconvenient. SUMMARY

[0005] The purpose of the present application is to provide a hydraulic pad structure of a mechanical press to solve the problems raised in the background.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: a hydraulic pad structure of a mechanical press, comprising a base, a group of lower workbench plates connected to the top middle end of the base, a group of edge columns provided at the top surface of the base at four ends, an upper beam connected through the edge columns, and a pull rod connected to the upper and lower ends of the four groups of edge columns, the upper and lower ends of the pull rod extending through the outer ends of the upper beam and the base respectively and connected with a nut, a group of guide rails provided between the left and right groups of edge columns, a group of sliding blocks provided between the two groups of guide rails, a group of crank link mechanisms provided at the left and right ends of the upper beam, and the bottom end of the crank link mechanism connected with the sliding block through a connecting rod.

[0007] By adopting the above technical scheme, the base, the four groups of edge columns and the upper beam form a prestressed frame type body through the cooperation of the four groups of pull rods and nuts, which has sufficient strength and rigidity, and the sliding block can be driven to move up and down between the left and right groups of guide rails through the crank link mechanism and the connecting rod.

[0008] Preferably, the bottom middle end of the sliding block is connected with a group of upper workbench plates, the middle end of the sliding block is divided into an upper cabin and a lower cabin through a middle plate, a group of hydraulic pad mechanisms are provided at the left and right ends of the lower cabin, and a protection mechanism is connected to the front end of the sliding block.

[0009] By adopting the technical scheme, the hydraulic cushion mechanism can press the edges of the workpiece, and the protection mechanism can protect the working range when the slider moves downward, thereby improving the production safety.

[0010] Preferably, the top surface of the intermediate plate is provided with a group of ball head seats at the left and right ends, and the bottom end of the connecting rod is connected to the ball head seat; the bottom surface of the intermediate plate is connected to a group of support rods at the left and right ends; and the bottom end of the support rod is connected to the top surface of the upper workbench plate through the inner bottom surface of the lower cabin.

[0011] By adopting the technical scheme, the connecting rod applies pressure to the intermediate plate through the ball head seat, and the intermediate plate applies pressure to the upper workbench plate through the support rod, thereby optimizing the force transmission path, simplifying the structure of the slider, reducing the weight of the slider and the upper workbench plate, reducing the wear of the guide rail, effectively improving the working effect, and prolonging the service life of the assembly.

[0012] Preferably, the components of the hydraulic cushion mechanism are the same, and the hydraulic cushion mechanism includes a hydraulic cushion cylinder, a hydraulic cushion plate, a top rod pad, a top rod, and a hydraulic cushion guide column; the top surface of the intermediate plate is provided with a group of hydraulic cushion cylinders near the middle end at the left and right ends; the output end bottom of the two groups of hydraulic cushion cylinders extends to the top end of the lower cabin and is connected to the top surface of a group of hydraulic cushion plates at the left and right ends; the bottom surface of the hydraulic cushion plate is provided with not less than two groups of top rod pads at equal intervals, and a top rod is connected to the top rod pad; and the bottom end of the hydraulic cushion guide column can extend into the upper workbench plate.

[0013] By adopting the technical scheme, the output end of the hydraulic cushion cylinder can drive the hydraulic cushion plate to move downward, and then drive the top rod to extend out of the bottom surface of the upper workbench plate, thereby facilitating the pressing of the edges of the workpiece.

[0014] Preferably, the protection mechanism includes a connecting plate one, a transmission arm one, a connecting plate two, a transmission arm two, and a protection plate; the slider is provided with a group of connecting plate ones at the front left and right ends; the side of the two groups of connecting plate ones away from each other is connected to a group of transmission arm ones at the front end; the front end of the two groups of side columns is provided with a group of connecting plate twos; the side of the two groups of connecting plate twos opposite to each other is connected to a group of transmission arm twos at the front end; the middle end of the transmission arm two is connected to the bottom end of the transmission arm one; and the opposite surfaces of the two groups of transmission arm twos are provided with a group of protection plates.

[0015] By adopting the technical scheme, when the slider moves downward, it can drive the connecting plate to move downward and rotate the transmission arm one; when the transmission arm one rotates, it can drive the transmission arm two to rotate, and the protection effect can be achieved through the protection plate between the two groups of transmission arm twos.

[0016] Preferably, the bottom end of the two groups of transmission arm twos is connected through a group of bottom plates, and the bottom surface of the bottom plate is connected to a group of cleaning brushes.

[0017] By adopting the technical scheme, when the two sets of transmission arms rotate, the lower workbench plate top surface can be cleaned by the cleaning brush to remove residual impurities.

[0018] Preferably, the top surface of the cleaning brush is attached to the bottom surface of the bottom plate, and when the cleaning brush rotates, the bottom end can contact the top surface of the lower workbench plate.

[0019] By adopting the technical scheme, the cleaning brush can clean the top surface of the lower workbench plate to remove residual impurities.

[0020] Preferably, the protective plate is made of transparent material.

[0021] By adopting the technical scheme, the machining condition of the workpiece can be observed at any time.

[0022] Preferably, the top rod pad and the top rod are connected by threads.

[0023] By adopting the technical scheme, the connection stability of the top rod pad and the top rod can be improved.

[0024] Preferably, the top surface of the hydraulic pad plate is provided with through holes corresponding to the support rods and the hydraulic pad guide columns, and the hydraulic pad plate can move up and down along the hydraulic pad guide columns.

[0025] By adopting the technical scheme, the hydraulic pad plate can move up and down along the hydraulic pad guide columns, maintaining the stability of movement.

[0026] Compared with the prior art, the application has the following beneficial effects:

[0027] 1. The hydraulic pad mechanism is integrated in the sliding block, so that when the edge pressing is not needed, it is equivalent to a common press, unnecessary component installation and disassembly are avoided, and the use flexibility is improved.

[0028] 2. The hydraulic pad mechanism is arranged in the sliding block, and the hydraulic pad mechanism includes components such as a hydraulic pad cylinder, a hydraulic pad plate, a top rod pad, a top rod, and a hydraulic pad guide column, which cooperate with each other, so that when the sliding block returns, the hydraulic pad plate drives the top rod to be pushed out downward, and when the sliding block is pressed downward, the hydraulic pad plate drives the top rod to return, thereby avoiding affecting the work efficiency.

[0029] 3. The protective mechanism is arranged at the front end of the sliding block, and the protective mechanism includes a connecting plate one, a transmission arm one, a connecting plate two, a transmission arm two, and a protective plate, so that when the sliding block slides downward for pressing, the transmission arm one drives the transmission arm two, and drives the protective plate to rotate forward, thereby isolating and protecting the machining range, and improving the production safety. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1It is a schematic diagram of the front view structure of the present application;

[0031] Figure 2 It is a schematic diagram of the slider connecting structure of the present application;

[0032] Figure 3 It is a schematic diagram of the partial structure inside the slider of the present application;

[0033] Figure 4 It is a schematic diagram of the protection mechanism structure of the present application;

[0034] Figure 5 It is a schematic diagram of the second bottom end structure of the transmission arm of the present application.

[0035] In the figure: base-1, side column-2, upper beam-3, pull rod-4, nut-5, guide rail-6, slider-7, crank connecting rod mechanism-8, lower workbench plate-11, connecting rod-81, upper workbench plate-71, middle plate-72, upper cabin-73, lower cabin-74, hydraulic cushion mechanism-75, protection mechanism-76, ball head seat-721, brace rod-722, hydraulic cushion cylinder-751, hydraulic cushion plate-752, jacking rod cushion-753, jacking rod-754, hydraulic cushion guide column-755, connecting plate one-761, transmission arm one-762, connecting plate two-763, transmission arm two-764, protection plate-765, bottom plate-7641, cleaning brush-7642. DETAILED DESCRIPTION

[0036] In order to further explain the technical solutions of the present application, the following specific embodiments are described in detail.

[0037] Please refer to Figure 1 The present application provides a hydraulic cushion structure of a mechanical press, which comprises a base 1, a group of lower workbench plates 11 fixedly connected to the top middle end of the base 1, a group of side columns 2 fixedly connected to the top surface of the base 1 at four ends, an upper beam 3 fixedly connected through the side columns 2, pull rods 4 fixedly connected to the upper and lower ends of the four groups of side columns 2, nuts 5 connected and installed on the upper and lower ends of the pull rods 4, a group of guide rails 6 installed between the left and right groups of side columns 2, a group of sliders 7 installed between the two groups of guide rails 6, the sliders 7 being movable up and down between the two groups of guide rails 6, a group of crank connecting rod mechanisms 8 installed in the left and right ends of the upper beam 3, and connecting rods 81 connecting the bottom ends of the crank connecting rod mechanisms 8 and the sliders 7.

[0038] Among them, the crank connecting rod mechanism 8 is a general technology, which can drive the connecting rod 81 to move up and down, and will not be described here.

[0039] Specifically, the base 1, four groups of side columns 2 and the upper beam 3 form a prestressed frame type body through the cooperation of four groups of pull rods 4 and nuts 5, which has sufficient strength and rigidity to ensure the overall stability of the press machine, and can drive the slider 7 to move up and down between the two groups of guide rails 6 through the crank connecting rod mechanism 8 and the connecting rod 81, so as to perform extrusion processing on the workpiece.

[0040] Please refer to Figure 2 The bottom middle end of the slider 7 is fixedly connected with a group of upper workbench plates 71, and the inner middle end of the slider 7 is divided into an upper cabin 73 and a lower cabin 74 by a middle plate 72. The left and right ends of the lower cabin 74 are each provided with a group of hydraulic cushion mechanisms 75, and the front end of the slider 7 is connected with a protection mechanism 76.

[0041] Specifically, the hydraulic cushion mechanism 75 can perform edge pressing on the workpiece, and the protection mechanism 76 can protect the working range when the slider 7 moves downward to work, thereby improving the production safety.

[0042] Please refer to Figures 2-3 The top surface of the middle plate 72 is fixedly connected with a group of ball head seats 721 at the left and right ends, and the bottom end of the connecting rod 81 is connected through the ball head seat 721. The bottom surface of the middle plate 72 is fixedly connected with a group of support rods 722 at the left and right ends, and the bottom end of the support rod 722 is fixedly connected with the top surface of the upper workbench plate 71 through the inner bottom surface of the lower cabin 74.

[0043] Specifically, the connecting rod 81 can apply pressure to the middle plate 72 through the ball head seat 721, and the middle plate 72 can apply pressure to the upper workbench plate 71 through the support rod 722, so as to optimize the force transmission path, simplify the structure of the slider 7, reduce the weight of the slider 7 and the upper workbench plate 71, and reduce the wear of the guide rail 6, thereby effectively improving the working effect and prolonging the service life of the assembly.

[0044] Please refer to Figure 3, the components of the hydraulic cushion mechanism 75 are the same, the hydraulic cushion mechanism 75 includes hydraulic cushion cylinders 751, hydraulic cushion plates 752, top rod cushions 753, top rods 754 and hydraulic cushion guide columns 755, the top surface of the middle plate 72 is provided with a group of hydraulic cushion cylinders 751 near the middle end of the left and right ends, the output ends of the two groups of hydraulic cushion cylinders 751 extend through to the top end in the lower cabin 74, and are fixedly connected to the top surface of a group of hydraulic cushion plates 752, the bottom surface of the hydraulic cushion plate 752 is provided with not less than two groups of top rod cushions 753 at equal intervals, and is connected with the top rod 754 through the top rod cushion 753, wherein the top rod cushion 753 and the top rod 754 are threadedly connected, which can improve the connection stability, and a group of hydraulic cushion guide columns 755 are fixedly connected to the left and right ends of the middle plate 72 corresponding to the left and right ends of the hydraulic cushion plate 752, the bottom end of the hydraulic cushion guide column 755 can extend into the upper workbench plate 71, further, the top surface of the hydraulic cushion plate 752 is provided with a through hole corresponding to the support rod 722 and the hydraulic cushion guide column 755, and the hydraulic cushion plate 752 can move up and down along the hydraulic cushion guide column 755, thereby maintaining the stability during movement.

[0045] Specifically, the output ends of the two groups of hydraulic cushion cylinders 751 can drive the hydraulic cushion plate 752 to move downward along the hydraulic cushion guide column 755, and then drive the top rod 754 to extend out of the bottom surface of the upper workbench plate 71, thereby pressing the edge of the workpiece.

[0046] Please refer to Figure 4 The protection mechanism 76 includes a connecting plate one 761, a transmission arm one 762, a connecting plate two 763, a transmission arm two 764 and a protection plate 765, a group of connecting plate ones 761 are fixedly connected to the front left and right ends of the sliding block 7, a group of transmission arm ones 762 are hingedly connected to the front ends of the sides of the two groups of connecting plate ones 761 away from each other, a group of connecting plate twos 763 are fixedly connected to the front ends of the front end of the two groups of side columns 2, and a group of transmission arm twos 764 are hingedly connected to the front ends of the opposite sides of the two groups of connecting plate twos 763, wherein the middle ends of the transmission arm twos 764 are hingedly connected to the bottom ends of the transmission arm ones 762, and the transmission arm ones 762 rotate to drive the transmission arm twos 764 to rotate around the front end, and a group of protection plates 765 are installed between the opposite surfaces of the two groups of transmission arm twos 764, which can be easily replaced and maintained, wherein the protection plate 765 is made of transparent material, such as transparent acrylic plate, which can be used to observe the processing of the workpiece at any time.

[0047] Specifically, when the sliding block 7 moves downward, it can drive the two groups of connecting plate ones 761 to move downward, and rotate the two groups of transmission arm ones 762 forward through the two groups of connecting plate ones 761, and when the two groups of transmission arm ones 762 rotate, they can drive the transmission arm twos 764 to move, so that the protection plate 765 between the two groups of transmission arm twos 764 rotates forward and moves to the front end of the sliding block 7, which can isolate and protect the front end of the sliding block 7 during processing.

[0048] Please refer toFigure 5 The bottom ends of the two sets of transmission arms two 764 are connected through a set of bottom plates 7641, the bottom surface of the bottom plates 7641 is bonded with a set of cleaning brushes 7642, the transmission arms two 764 can drive the cleaning brushes 7642 to rotate, and the bottom end of the cleaning brushes 7642 can contact the top surface of the lower workbench plate 11 when rotating.

[0049] Specifically, the two sets of transmission arms two 764 can clean the top surface of the lower workbench plate 11 through the cleaning brushes 7642 when rotating, remove residual impurities, and facilitate subsequent processing of workpieces.

[0050] The hydraulic pad structure of the mechanical press machine is integrated in the sliding block 7, so that when the edge pressing is not needed, it is equivalent to a common press machine, unnecessary component installation and disassembly are avoided, use flexibility is improved, the hydraulic pad mechanism 75 is arranged in the sliding block 7, the hydraulic pad mechanism 75 includes a hydraulic pad cylinder 751, a hydraulic pad plate 752, a top rod pad 753, a top rod 754 and a hydraulic pad guide column 755 and other components, which cooperate with each other, so that when the sliding block 7 returns, the hydraulic pad plate 752 drives the top rod 754 to be pushed out downward, when the sliding block 7 is pressed downward, the hydraulic pad plate 752 drives the top rod 754 to return, so as to avoid affecting the working efficiency, the protection mechanism 76 is arranged at the front end of the sliding block 7, the protection mechanism 76 includes a connecting plate one 761, a transmission arm one 762, a connecting plate two 763, a transmission arm two 764 and a protection plate 765, when the sliding block 7 slides downward, the transmission arm one 762 drives the transmission arm two 764 to rotate forward, drives the protection plate 765 to rotate forward, isolates and protects the processing range, and improves the production safety.

[0051] The above only describes the preferred examples of the present application and is not used to limit the present application, although the present application is described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples, or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hydraulic cushion structure for a mechanical press, characterized in that: Includes a base (1), the top center of which is connected to a set of lower worktable plates (11), the top surface of the base (1) is provided with a set of side columns (2) at all four ends, and the upper beam (3) is connected through the side columns (2), and the upper and lower ends of the four sets of side columns (2) are connected with pull rods (4), the upper and lower ends of the pull rods (4) extend through to the outer ends of the upper beam (3) and the base (1) respectively, and are connected with nuts (5), and a set of guide rails (6) is provided between the left and right sets of side columns (2), and a set of sliders (7) is provided between the two sets of guide rails (6), and a set of crank connecting rod mechanisms (8) is provided at the left and right ends of the upper beam (3), and the bottom end of the crank connecting rod mechanism (8) is connected to the slider (7) through a connecting rod (81); The bottom middle of the slider (7) is connected to a set of upper worktable plates (71). The middle of the slider (7) is divided into an upper compartment (73) and a lower compartment (74) by a middle plate (72). A set of hydraulic cushion mechanisms (75) is provided on both the left and right ends of the lower compartment (74). A protective mechanism (76) is connected to the front end of the slider (7). The top surface of the intermediate plate (72) is provided with a set of ball joints (721) at both the left and right ends, and is connected to the bottom end of the connecting rod (81) through the ball joints (721). The bottom surface of the intermediate plate (72) is connected with a set of support rods (722) at both the left and right ends. The bottom end of the support rods (722) passes through the bottom surface of the lower compartment (74) and is connected to the top surface of the upper worktable (71). The components of the hydraulic cushion mechanism (75) are all the same. The hydraulic cushion mechanism (75) includes a hydraulic cushion cylinder (751), a hydraulic cushion plate (752), a push rod pad (753), a push rod (754), and a hydraulic cushion guide column (755). A set of hydraulic cushion cylinders (751) is provided at the left and right ends of the top surface of the intermediate plate (72) near the middle. The bottom ends of the output ends of the two sets of hydraulic cushion cylinders (751) extend through to the top of the lower compartment (74) and are connected to the left and right ends of the top surface of a set of hydraulic cushion plates (752). The bottom surface of the hydraulic cushion plate (752) is provided with no less than two sets of push rod pads (753) at equal intervals, and the push rod (754) is connected through the push rod pads (753). A set of hydraulic cushion guide columns (755) is provided at the left and right ends of the bottom surface of the intermediate plate (72) corresponding to the left and right ends of the hydraulic cushion plate (752). The bottom end of the hydraulic cushion guide column (755) can extend into the upper worktable plate (71). The protective mechanism (76) includes a connecting plate 1 (761), a transmission arm 1 (762), a connecting plate 2 (763), a transmission arm 2 (764), and a protective plate (765). The slider (7) is provided with a set of connecting plates 1 (761) at the front left and right ends. The front ends of the two sets of connecting plates 1 (761) that are far apart from each other are connected to a set of transmission arms 1 (762). The front ends of the two sets of side posts (2) are provided with a set of connecting plates 2 (763). The front ends of the two sets of connecting plates 2 (763) that are opposite to each other are connected to a set of transmission arms 2 (764). The middle ends of the transmission arms 2 (764) are connected to the bottom ends of the transmission arms 1 (762). A protective plate (765) is provided between the opposite faces of the two sets of transmission arms 2 (764).

2. The hydraulic cushion structure of a mechanical press according to claim 1, characterized in that: The bottom ends of the two sets of transmission arms (764) are connected by a set of base plates (7641), and a set of cleaning brushes (7642) are connected to the bottom surface of the base plates (7641).

3. The hydraulic cushion structure of a mechanical press according to claim 2, characterized in that: The top surface of the cleaning brush (7642) is attached to the bottom surface of the base plate (7641). When the cleaning brush (7642) rotates, its bottom end can contact the top surface of the lower worktable plate (11).

4. The hydraulic cushion structure of a mechanical press according to claim 1, characterized in that: The protective plate (765) is made of transparent material.

5. The hydraulic cushion structure of a mechanical press according to claim 1, characterized in that: The top rod pad (753) and the top rod (754) are connected by threads.

6. The hydraulic cushion structure of a mechanical press according to claim 1, characterized in that: The top surface of the hydraulic pad (752) is provided with corresponding through holes for the support rod (722) and the hydraulic pad guide post (755), and the hydraulic pad (752) can move up and down along the hydraulic pad guide post (755).

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