Hydraulic cushion structure of mechanical press

Abstract

The invention discloses a hydraulic cushion structure of a mechanical press. The hydraulic cushion structure comprises a base, a side column, an upper beam, a pull rod, a nut, a guide rail, a sliding block and a crank connecting rod mechanism. Four groups of side columns are arranged between the base and the upper beam, the left group of side columns and the right group of side columns are respectively connected with a group of sliding blocks through two groups of guide rails, the bottom ends of the sliding blocks are connected with an upper working table plate, the inner ends of the sliding blocks are divided into an upper cabin and a lower cabin through a middle plate, and a hydraulic cushion mechanism is arranged in the lower cabin, so that the force transmission path of a traditional press can be optimized; the structure of the sliding block is effectively simplified, the weight of the sliding block and the upper working table plate is reduced, abrasion to a guide rail is reduced, the service life of assemblies is effectively prolonged, the front end of the sliding block is connected with a protection mechanism, and the protection mechanism comprises a first connecting plate, a first transmission arm, a second connecting plate, a second transmission arm, a protection plate and other assemblies. And the protective plate is driven to overturn forwards, so that the processing range is separated and protected, and the safety during production operation can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of forging equipment, in particular to a hydraulic pad structure of a mechanical press. Background Art

[0002] Forging equipment is industrial equipment used to apply pressure to metal or other materials, causing them to plastically deform or separate. It is widely used in the automotive, aerospace, military, and machinery manufacturing industries. This equipment uses impact or static pressure to perform forging, stamping, extrusion, bending, and other processes to improve material strength, precision, or form. Common forging equipment includes punch presses, screw presses, and hydraulic presses.

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

[0004] However, the upper air cushion structure is mostly large in size and has a small output force. The overall structure of the double-action press is relatively complex and the cost is high. The manufacturing and use range is limited. Some molds have their own edge pressing function, but they need to be reconnected during connection and control, which is cumbersome and inconvenient. Summary of the Invention

[0005] The object of the present invention is to provide a hydraulic pad structure for a mechanical press to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a hydraulic pad structure of a mechanical press, including a base, a group of lower worktable plates are connected to the top middle end of the base, a group of side columns are provided at the four ends of the top surface of the base, and the upper beam is connected through the side columns, and the upper and lower ends of the four groups of side columns are connected with pull rods, and the upper and lower end pull rods extend through and extend to the outer ends of the upper beam and the base respectively, and are connected with nuts, and a group of guide rails are provided between the left and right groups of side columns, and a group of sliders are provided between the two groups of guide rails, and a group of crank-connecting rod mechanisms are provided at the left and right ends of the upper beam, and the bottom end of the crank-connecting rod mechanism is connected to the slider through a connecting rod.

[0007] By adopting the above technical solution, the base, four sets of side columns and the upper beam are formed into a prestressed frame-type fuselage through the cooperation of four sets of tie rods and nuts. It has sufficient strength and rigidity and can drive the slider to move up and down between the left and right sets of guide rails through the crank-connecting rod mechanism and the connecting rod.

[0008] Preferably, a group of upper worktable plates are connected to the bottom middle end of the slider, the inner middle end of the slider is divided into an upper cabin and a lower cabin by an intermediate plate, a group of hydraulic pad mechanisms are provided at the left and right ends of the lower cabin, and the front end of the slider is connected to a protective mechanism.

[0009] By adopting the above technical solution, the hydraulic pad mechanism can press the edge of the workpiece, and the protective mechanism can protect the working range when the slider moves downward, thereby improving production safety.

[0010] Preferably, a group of ball head seats are provided on the left and right ends of the top surface of the intermediate plate, and are connected to the bottom end of the connecting rod through the ball head seats. A group of support rods are connected on the left and right ends of the bottom surface of the intermediate plate, and the bottom ends of the support rods pass through the bottom surface of the lower cabin and are connected to the top surface of the upper workbench.

[0011] By adopting the above technical solution, the connecting rod applies pressure to the middle plate through the ball head seat, and the middle plate applies pressure to the upper worktable 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 worktable, and reducing the wear on the guide rail, which can effectively improve the working effect and extend the service life of the components.

[0012] Preferably, the components of the hydraulic pad mechanism are all the same, and the hydraulic pad mechanism includes a hydraulic pad cylinder, a hydraulic pad plate, a push rod pad, a push rod and a hydraulic pad guide column. A group of hydraulic pad cylinders are provided at the left and right ends of the top surface of the intermediate plate near the middle end. The bottom ends of the output ends of the two groups of hydraulic pad cylinders extend through to the top end of the lower cabin and are connected to the left and right ends of the top surface of a group of hydraulic pad plates. No less than two groups of push rod pads are provided at equal intervals on the bottom surface of the hydraulic pad plate, and a push rod is connected through the push rod pad. A group of hydraulic pad guide columns are provided at the left and right ends of the bottom surface of the intermediate plate corresponding to the left and right ends of the hydraulic pad plate. The bottom ends of the hydraulic pad guide columns can extend into the upper workbench.

[0013] By adopting the above technical solution, the output end of the hydraulic pad cylinder can drive the hydraulic pad to move downward, and then drive the push rod to extend out of the bottom surface of the upper worktable, so as to facilitate the edge pressing of the workpiece.

[0014] Preferably, the protective mechanism includes a connecting plate 1, a transmission arm 1, a connecting plate 2, a transmission arm 2 and a protective plate. A group of connecting plate 1 is provided at the left and right ends of the slider. The front ends of the two groups of connecting plate 1s that are away from each other are connected to a group of transmission arm 1. The front ends of the two groups of side columns are provided with a group of connecting plate 2. The front ends of the opposite sides of the two groups of connecting plate 2s are connected to a group of transmission arm 2. The middle ends of the transmission arm 2s are connected to the bottom end of the transmission arm 1. A group of protective plates are provided between the opposite surfaces of the two groups of transmission arms 2.

[0015] By adopting the above technical solution, when the slider moves downward, it can drive the connecting plate to move downward and rotate the transmission arm 1. When the transmission arm 1 rotates, the transmission arm 2 can be linked to rotate, and the protection effect can be achieved through the protective plate between the two sets of transmission arms 2.

[0016] Preferably, the bottom ends of the two groups of transmission arms 2 are connected through a group of bottom plates, and the bottom surfaces of the bottom plates are connected to a group of cleaning brushes.

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

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

[0019] By adopting the above technical solution, the cleaning brush cleans 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 above technical solution, it is convenient to observe the processing status of the workpiece at any time.

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

[0023] By adopting the above technical solution, the connection stability between the push rod pad and the push rod can be improved.

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

[0025] By adopting the above technical solution, the hydraulic pad can move up and down along the hydraulic pad guide column to maintain movement stability.

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

[0027] 1. This application integrates the hydraulic pad mechanism into the slider. When the hydraulic pad mechanism is not needed for edge pressing, it is equivalent to an ordinary press, which can avoid unnecessary component installation and disassembly and improve flexibility of use.

[0028] 2. This application uses a hydraulic pad mechanism set in the slider. The hydraulic pad mechanism includes components such as a hydraulic pad cylinder, a hydraulic pad plate, a push rod pad, a push rod and a hydraulic pad guide column. When the slider returns, the hydraulic pad plate drives the push rod to be pushed downward. When the slider is pressed downward, the hydraulic pad plate drives the push rod to return, thereby avoiding affecting and reducing work efficiency.

[0029] 3. This application uses a protective mechanism set at the front end of the slider. The protective mechanism includes a connecting plate 1, a transmission arm 1, a connecting plate 2, a transmission arm 2 and a protective plate. When the slider moves downward and presses, the transmission arm 1 can be linked to the transmission arm 2 to drive the protective plate to rotate forward, thereby isolating and protecting the processing range and improving production safety. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 2 This is a schematic diagram of the slider connection structure of the present invention;

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

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

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

[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 worktable 11, connecting rod 81, upper worktable 71, middle plate 72, upper cabin 73, lower cabin 74, hydraulic pad mechanism 75, protective mechanism 76, ball head seat 721, strut 722, hydraulic pad cylinder 751, hydraulic pad 752, push rod pad 753, push rod 754, hydraulic pad guide column 755, connecting plate 1 761, transmission arm 1 762, connecting plate 2 763, transmission arm 2 764, protective plate 765, bottom plate 7641, cleaning brush 7642. DETAILED DESCRIPTION

[0036] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0037] See also Figure 1 The present invention provides a hydraulic pad structure of a mechanical press, comprising a base 1, a group of lower worktables 11 being fixedly connected to the top middle end of the base 1, a group of side columns 2 being fixedly connected to the four ends of the top surface of the base 1, and an upper beam 3 being fixedly connected through the side columns 2, and the upper and lower ends of the four groups of side columns 2 are fixedly connected to pull rods 4, the upper and lower end pull rods 4 respectively extend through the upper beam 3 and the outer ends of the base 1, and are connected and installed with nuts 5, and a group of guide rails 6 are installed between the left and right groups of side columns 2, a group of sliders 7 are installed between the two groups of guide rails 6, and the sliders 7 can move up and down between the two groups of guide rails 6, and a group of crank-connecting rod mechanisms 8 are installed 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.

[0038] The crank-connecting rod mechanism 8 is a conventional technology and can drive the connecting rod 81 to move up and down, which will not be described in detail here.

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

[0040] See also Figure 2 A set of upper working tables 71 are fixedly connected to the bottom middle end of the slider 7. The middle end of the slider 7 is divided into an upper cabin 73 and a lower cabin 74 by an intermediate plate 72. A set of hydraulic pad mechanisms 75 are provided at the left and right ends of the lower cabin 74. The front end of the slider 7 is connected to a protective mechanism 76.

[0041] Specifically, the hydraulic pad mechanism 75 can press the edge of the workpiece, and the protection mechanism 76 can protect the working range when the slider 7 moves downward, thereby improving production safety.

[0042] See also Figure 2-Figure 3 The left and right ends of the top surface of the middle plate 72 are fixedly connected with a set of ball head seats 721, and are connected to the bottom end of the connecting rod 81 through the ball head seats 721. The left and right ends of the bottom surface of the middle plate 72 are fixedly connected with a set of support rods 722. The bottom ends of the support rods 722 pass through the bottom surface of the lower cabin 74 and are fixedly connected to the top surface of the upper workbench 71.

[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 work table 71 through the support rod 722, thereby optimizing the force transmission path, simplifying the structure of the slider 7, reducing the weight of the slider 7 and the upper work table 71, and reducing the wear on the guide rail 6, which can effectively improve the working effect and extend the service life of the component.

[0044] See also Figure 3, the components of the hydraulic pad mechanism 75 are all the same, the hydraulic pad mechanism 75 includes a hydraulic pad cylinder 751, a hydraulic pad plate 752, a push rod pad 753, a push rod 754 and a hydraulic pad guide column 755, and a group of hydraulic pad cylinders 751 are installed at the left and right ends of the top surface of the middle plate 72 near the middle end. The bottom ends of the output ends of the two groups of hydraulic pad cylinders 751 extend through the top of the lower cabin 74 and are fixedly connected to the left and right ends of the top surface of a group of hydraulic pad plates 752. The bottom surface of the hydraulic pad plate 752 is evenly spaced with no less than two groups of push rod pads 753, and through the push rod pad 75 3 is connected to a push rod 754, wherein the push rod pad 753 and the push rod 754 are connected by a threaded connection to improve the connection stability, and a group of hydraulic pad guide columns 755 are fixedly connected to the left and right ends of the bottom surface of the middle plate 72 corresponding to the left and right ends of the hydraulic pad 752. The bottom ends of the hydraulic pad guide columns 755 can extend into the upper workbench 71. Furthermore, the top surface of the hydraulic pad 752 is provided with through holes corresponding to the support rod 722 and the hydraulic pad guide columns 755. The hydraulic pad 752 can move up and down along the hydraulic pad guide columns 755 to maintain stability during movement.

[0045] Specifically, the output ends of the two groups of hydraulic pad cylinders 751 can drive the hydraulic pad 752 to move downward along the hydraulic pad guide column 755, and then drive the push rod 754 to extend downward from the bottom surface of the upper work table 71 to press the workpiece.

[0046] See also Figure 4 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 left and right ends of the slider 7 are fixedly connected to a group of connecting plates 1 761. The front ends of the two groups of connecting plates 1 761 on the side away from each other are hingedly connected to a group of transmission arms 1 762. The front ends of the two groups of side columns 2 at the front end are fixedly connected to a group of connecting plates 2 763. The front ends of the opposite sides of the two groups of connecting plates 2 763 are hingedly connected to a group of transmission arms 2 764. Among them, the middle ends of the transmission arms 2 764 are hinged to the bottom ends of the transmission arms 1 762. When the transmission arm 1 762 rotates, the transmission arm 2 764 can be linked to rotate around the front end. A group of protective plates 765 is installed between the opposite surfaces of the two groups of transmission arms 2 764. The protective plates 765 are detachable for easy replacement and maintenance. Among them, the protective plates 765 are made of transparent material, such as transparent acrylic plates, which are convenient for observing the processing status of the workpiece at any time.

[0047] Specifically, when the slider 7 moves downward, it can drive the two sets of connecting plates 761 to move downward, and the two sets of transmission arms 1 762 can be rotated forward through the two sets of connecting plates 1 761. When the two sets of transmission arms 1 762 rotate, the transmission arm 2 764 can be linked to move and rotate around the front end. The protective plate 765 between the two sets of transmission arms 2 764 is rotated forward and moved to the front end of the slider 7, so that the front end of the slider 7 can be isolated and protected during processing.

[0048] See also Figure 5 The bottom ends of the two sets of transmission arms 764 are connected through a set of base plates 7641. A set of cleaning brushes 7642 are adhered to the bottom surface of the base plate 7641. The transmission arm 764 can drive the cleaning brushes 7642 to rotate, and when the cleaning brushes 7642 rotate, their bottom ends can contact the top surface of the lower workbench 11.

[0049] Specifically, when the two sets of transmission arms 764 rotate, the top surface of the lower work table 11 can be cleaned by the cleaning brush 7642 to remove residual impurities, thereby facilitating subsequent processing of the workpiece.

[0050] The present invention provides a hydraulic pad structure of a mechanical press. By integrating the hydraulic pad mechanism 75 into the slider 7, when the hydraulic pad mechanism 75 is not needed for edge pressing, it is equivalent to an ordinary press, which can avoid unnecessary component installation and disassembly, and improve the flexibility of use. The hydraulic pad mechanism 75 is arranged in the slider 7. The hydraulic pad mechanism 75 includes components such as a hydraulic pad cylinder 751, a hydraulic pad plate 752, a push rod pad 753, a push rod 754 and a hydraulic pad guide column 755. Under the cooperation of each other, the hydraulic pad can be used when the slider 7 returns. Plate 752 drives the push rod 754 to push downward. When the slider 7 is pressed downward, the hydraulic pad 752 drives the push rod 754 to return to avoid affecting the work efficiency. Through the protection mechanism 76 set at the front end of the slider 7, the protection 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 protection plate 765. When the slider 7 is pressed downward, the transmission arm 1 762 can be linked to the transmission arm 2 764 to drive the protection plate 765 to rotate forward, thereby isolating and protecting the processing range and improving production safety.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hydraulic cushion structure for a mechanical press, characterized in that: The utility model comprises a base (1), wherein the top middle end of the base (1) is connected to a group of lower working tables (11), the four ends of the top surface of the base (1) are all provided with a group of side columns (2), and the upper beam (3) is connected through the side columns (2), and the upper and lower ends of the four groups of side columns (2) are all connected with pull rods (4), and the upper and lower end pull rods (4) respectively extend through the upper beam (3) and the outer ends of the base (1) and are connected with nuts (5), and a group of guide rails (6) are provided between the left and right groups of side columns (2), and a group of sliders (7) are provided between the two groups of guide rails (6), and a group of crank connecting rod mechanisms (8) are 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).

2. The hydraulic pad structure of a mechanical press according to claim 1, characterized in that: The bottom middle end of the slider (7) is connected to a set of upper working tables (71), the inner middle end of the slider (7) is divided into an upper cabin (73) and a lower cabin (74) by an intermediate plate (72), and the left and right ends of the lower cabin (74) are both provided with a set of hydraulic cushion mechanisms (75), and the front end of the slider (7) is connected to a protective mechanism (76).

3. The hydraulic pad structure of a mechanical press according to claim 2, characterized in that: A set of ball seats (721) are provided on both the left and right ends of the top surface of the intermediate plate (72), and are connected to the bottom end of the connecting rod (81) through the ball seats (721). A set of support rods (722) are connected to both the left and right ends of the bottom surface of the intermediate plate (72), and the bottom ends of the support rods (722) pass through the bottom surface of the lower cabin (74) and are connected to the top surface of the upper workbench (71).

4. The hydraulic pad structure of a mechanical press according to claim 3, characterized in that: 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) are provided at the left and right ends of the top surface of the middle plate (72) near the middle end. The bottom ends of the output ends of the two sets of hydraulic cushion cylinders (751) extend through the top end of the lower cabin (74) and are connected to the hydraulic cushion cylinders (751). At the left and right ends of the top surface of a group of hydraulic pads (752), at least two groups of push rod pads (753) are provided at equal intervals on the bottom surface of the hydraulic pads (752), and push rods (754) are connected through the push rod pads (753). In addition, a group of hydraulic pad guide columns (755) are 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 pads (752), and the bottom ends of the hydraulic pad guide columns (755) can extend into the upper workbench (71).

5. The hydraulic pad structure of a mechanical press according to claim 2, characterized in that: The protective mechanism (76) includes a connecting plate (761), a transmission arm (762), a connecting plate (763), a transmission arm (764) and a protective plate (765). The left and right ends of the slider (7) are both provided with a group of connecting plates (761). The front ends of the two groups of connecting plates (761) that are away from each other are both connected with a group of transmission arms (762). The front ends of the two groups of side columns (2) are both provided with a group of connecting plates (763). The front ends of the opposite sides of the two groups of connecting plates (763) are both connected with a group of transmission arms (764). The middle ends of the transmission arms (764) are both connected to the bottom ends of the transmission arms (762). A group of protective plates (765) is provided between the opposite surfaces of the two groups of transmission arms (764).

6. The hydraulic pad structure of a mechanical press according to claim 5, characterized in that: The bottom ends of the two groups of transmission arms (764) are connected through a group of bottom plates (7641), and the bottom surface of the bottom plates (7641) is connected to a group of cleaning brushes (7642).

7. The hydraulic pad structure of a mechanical press according to claim 5, characterized in that: The top surface of the cleaning brush (7642) is adhered to the bottom surface of the base plate (7641), and when the cleaning brush (7642) rotates, the bottom end can contact the top surface of the lower workbench (11).

8. The hydraulic pad structure of a mechanical press according to claim 5, characterized in that: The protective plate (765) is made of transparent material.

9. The hydraulic pad structure of a mechanical press according to claim 4, characterized in that: The push rod pad (753) and the push rod (754) are connected by threads.

10. The hydraulic pad structure of a mechanical press according to claim 4, characterized in that: The top surface of the hydraulic pad (752) is provided with through holes corresponding to the support rod (722) and the hydraulic pad guide column (755), and the hydraulic pad (752) can move up and down along the hydraulic pad guide column (755).

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