Energy-saving device for hydraulic press

Abstract

The utility model discloses an energy-saving device for a hydraulic press, comprising a workbench, an upper surface of the workbench is provided with a slide groove, a upper surface of the workbench is provided with a support platform, the support platform is in an inverted U shape, through grooves are provided on both left and right end surfaces of the support platform, a hydraulic cylinder is provided on the upper surface of the support platform, a pressure plate is provided on the bottom end of the hydraulic cylinder, extension rods are provided on both left and right ends of the pressure plate, the extension rods are slidably connected to the through grooves, a placing platform is provided on the upper surface of the workbench, and a clamping assembly is provided above the workbench. The energy-saving device for a hydraulic press disclosed by the utility model is not only convenient for taking out workpieces, but also can automatically fix the workpieces to save energy.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses and discloses an energy-saving device for a hydraulic press. Background Art

[0002] A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. A hydraulic press is generally composed of three parts: the machine (host), the power system and the hydraulic control system. Hydraulic presses are classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses. They are often used in pressing processes and pressing forming processes, such as forging, stamping, cold extrusion, straightening, bending, flanging, thin plate drawing, powder metallurgy and pressing, etc.

[0003] However, the patents in the prior art have the following disadvantages:

[0004] (1) After processing the workpiece, it may stick to the device and be difficult to remove.

[0005] (2) Hydraulic presses require additional equipment for positioning when processing raw materials, which increases production costs and increases energy loss. Utility Model Content

[0006] The utility model aims to provide an energy-saving device for a hydraulic press, which solves the problem of inconvenience in removing workpieces and requiring additional equipment for positioning in the prior art by arranging a movable top plate and a clamping assembly.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A hydraulic press energy-saving device, comprising:

[0009] A workbench, wherein a slide groove is provided on the upper surface of the workbench;

[0010] A support platform, the support platform is in an inverted U shape, the bottom end of the support platform is fixedly connected to the workbench, and the surfaces of the left and right ends of the support platform are both provided with through grooves;

[0011] A hydraulic cylinder, wherein the hydraulic cylinder is fixedly connected to the support platform;

[0012] A pressing plate, the upper end of which is fixedly connected to the hydraulic cylinder, and both left and right ends of the pressing plate are provided with extension rods, which are slidably connected to the through slot;

[0013] A placing table, the bottom end of which is fixedly connected to a workbench;

[0014] A clamping assembly is located above the workbench.

[0015] Furthermore, the surface of the placement table is provided with a plurality of grooves distributed at equal intervals, a sliding column is provided inside the groove, the sliding column is slidably connected to the placement table, and a top plate is provided at the upper end of the sliding column.

[0016] Furthermore, a return spring is provided at the bottom end of the slide column, and the bottom end of the return spring is fixedly connected to the placement table. The cross-sections of the groove and the top plate are both circular, and the radius of the top plate is slightly smaller than the groove.

[0017] Furthermore, the clamping assembly comprises:

[0018] A double-headed screw, the double-headed screw is located inside the slide slot, both left and right ends of the double-headed screw are rotatably connected to the workbench, and both left and right ends of the double-headed screw are provided with gears;

[0019] Racks, there are two racks, and the upper ends of the racks are fixedly connected to the extension rod;

[0020] There are two moving rods, the moving rods are slidably connected to the slide grooves, and the two moving rods are each provided with a horizontal plate at one end close to each other, and the two horizontal plates are each provided with a clamping plate at one side close to each other.

[0021] Furthermore, a plurality of telescopic columns distributed at equal intervals are provided between the transverse plate and the clamping plate, and a second spring is sleeved on the surface of the telescopic column.

[0022] Furthermore, the gear meshes with the rack, and the bottom end of the moving rod is threadedly connected to the double-headed screw.

[0023] The utility model provides a hydraulic press energy-saving device, which has the following beneficial effects:

[0024] (1) The utility model solves the problem that the existing hydraulic press cannot automatically lift the workpiece by providing a movable top plate. When the hydraulic cylinder squeezes the workpiece, the top plate will drop to allow it to enter the groove. After the workpiece is processed, the return spring will use its elastic force to push the top plate up, thereby lifting the workpiece and facilitating the removal of the workpiece.

[0025] (2) The utility model solves the problem that the existing hydraulic press needs to use other equipment to fix the workpiece by setting a clamping assembly. When the hydraulic cylinder pushes the pressure plate down, the pressure plate drives the rack to move downward through the extension rod, which in turn drives the gear to rotate. The gear drives the double-headed screw to rotate, thereby making the two moving rods approach each other. When the clamping plate fits the workpiece, the workpiece can be fixed without the help of other equipment, which greatly saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a hydraulic press energy-saving device of the utility model;

[0028] Figure 2 This is a three-dimensional structural schematic diagram of a hydraulic press energy-saving device according to the utility model from another angle;

[0029] Figure 3 This is a schematic diagram of the internal structure of a placement table of a hydraulic press energy-saving device of the utility model;

[0030] Figure 4 The utility model is a hydraulic press energy saving device Figure 1 Enlarged view of point A in the middle;

[0031] Figure 5 The utility model is a hydraulic press energy saving device Figure 2 Enlarged view of point B in the middle;

[0032] Figure 6 The utility model is a hydraulic press energy saving device Figure 2 Enlarged view of point C in the middle;

[0033] Among them: 1. workbench; 101. slide; 2. support table; 201. through groove; 3. hydraulic cylinder; 4. pressure plate; 401. extension rod; 5. placement table; 501. groove; 502. slide column; 503. top plate; 504. reset spring; 6. clamping assembly; 601. double-headed screw; 602. gear; 603. rack; 604. moving rod; 605. cross plate; 606. splint; 607. telescopic column; 608. second spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-6A hydraulic press energy-saving device comprises a workbench 1, a slide groove 101 is provided on the upper surface of the workbench 1, a support platform 2 is provided on the upper end of the workbench 1, the support platform 2 is inverted U-shaped, and through grooves 201 are provided on the left and right end surfaces of the support platform 2, a hydraulic cylinder 3 is provided on the upper end of the support platform 2, and a pressure plate 4 is provided at the bottom end of the hydraulic cylinder 3. The hydraulic cylinder 3 can push the pressure plate 4 to move in the vertical direction to squeeze the workpiece, and the left and right ends of the pressure plate 4 have extension rods 401, and the extension rods 401 are slidably connected to the through grooves 201. A placing table 5 is provided on the upper end of the workbench 1 for placing the workpiece, and a clamping assembly 6 is provided above the workbench 1 for automatically clamping the workpiece.

[0036] Specifically, the surface of the placement table 5 has a number of grooves 501 distributed at equal intervals, and a sliding column 502 is arranged inside the groove 501. The sliding column 502 is slidably connected to the placement table 5, and the sliding column 502 can slide up and down inside the placement table 5. A top plate 503 is arranged at the upper end of the sliding column 502, and a return spring 504 is arranged at the bottom end of the sliding column 502. The bottom end of the return spring 504 is fixedly connected to the placement table 5, and the return spring 504 can use elastic force to push the sliding column 502. The cross-sections of the groove 501 and the top plate 503 are both circular, and the radius of the top plate 503 is slightly smaller than that of the groove 501, so that the top plate 503 can enter the interior of the groove 501.

[0037] Through the above technical solution, when the hydraulic cylinder 3 squeezes the workpiece, the top plate 503 will be lowered to make it enter the groove 501. After the workpiece is processed, the return spring 504 will use the elastic force to push the top plate 503 up, thereby lifting the workpiece to facilitate the removal of the workpiece.

[0038] Specifically, the clamping assembly 6 includes a double-headed screw 601, the threads of the two ends of the double-headed screw 601 are in opposite directions, the double-headed screw 601 is located inside the slide groove 101, the left and right ends of the double-headed screw 601 are rotatably connected to the workbench 1, the left and right ends of the double-headed screw 601 are provided with gears 602, the rear side of the gear 602 is provided with a rack 603, the gear 602 is meshed with the rack 603, and the rack 603 can drive the gear 602 to rotate when it moves, the upper end of the rack 603 is fixedly connected to the extension rod 401, and the left and right ends of the double-headed screw 601 are sleeved with a moving rod The movable rod 604 is slidably connected to the slide groove 101. The movable rod 604 will move in the slide groove 101 as the double-headed screw 601 rotates. The two movable rods 604 have a cross plate 605 on one end close to each other. The two cross plates 605 have a clamping plate 606 on one side close to each other. There are several telescopic columns 607 distributed at equal intervals between the cross plate 605 and the clamping plate 606. The surface of the telescopic column 607 is sleeved with a second spring 608. The second spring 608 can provide a buffer for the clamping plate 606 to fix workpieces of different sizes.

[0039] Through the above technical solution, when the hydraulic cylinder 3 pushes the pressure plate 4 to descend, the pressure plate 4 drives the rack 603 to move downward through the extension rod 401, thereby driving the gear 602 to rotate, and the gear 602 drives the double-headed screw 601 to rotate, thereby making the two moving rods 604 approach each other. When the clamp 606 is in contact with the workpiece, the workpiece can be fixed without the aid of other equipment, which greatly saves energy.

[0040] When in use, place the workpiece on the placement table 5 and start the hydraulic cylinder 3. The hydraulic cylinder 3 pushes the pressure plate 4 down. The pressure plate 4 drives the rack 603 to move downward through the extension rod 401, thereby driving the gear 602 to rotate. The gear 602 drives the double-headed screw 601 to rotate, thereby making the two moving rods 604 approach each other. When the clamping plate 606 fits the workpiece, the workpiece can be fixed. At the same time, the pressure plate 4 makes the top plate 503 descend to make it enter the groove 501. After the workpiece is processed, the pressure plate 4 rises, and the two clamping plates 606 will move away from each other to release the workpiece. The reset spring 504 will use the elastic force to push the top plate 503 up, thereby lifting the workpiece to facilitate the removal of the workpiece.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydraulic press energy saving device, characterized in that: include: A workbench (1), wherein the upper surface of the workbench (1) is provided with a slide groove (101); A support platform (2), the support platform (2) is in an inverted U shape, the bottom end of the support platform (2) is fixedly connected to the workbench (1), and the surfaces of the left and right ends of the support platform (2) are both provided with through grooves (201); A hydraulic cylinder (3), wherein the hydraulic cylinder (3) is fixedly connected to the support platform (2); A pressing plate (4), the upper end of which is fixedly connected to the hydraulic cylinder (3), and both left and right ends of the pressing plate (4) are provided with extension rods (401), and the extension rods (401) are slidably connected to the through slot (201); A placing table (5), the bottom end of which is fixedly connected to the workbench (1); A clamping assembly (6), wherein the clamping assembly (6) is located above the workbench (1).

2. The energy-saving device for a hydraulic press according to claim 1, characterized in that: The surface of the placement platform (5) is provided with a plurality of grooves (501) distributed at equal intervals, a sliding column (502) is provided inside the groove (501), the sliding column (502) is slidably connected to the placement platform (5), and a top plate (503) is provided at the upper end of the sliding column (502).

3. The energy-saving device for a hydraulic press according to claim 2, characterized in that: A return spring (504) is provided at the bottom end of the slide column (502), and the bottom end of the return spring (504) is fixedly connected to the placement table (5). The cross-sections of the groove (501) and the top plate (503) are both circular, and the radius of the top plate (503) is slightly smaller than that of the groove (501).

4. The energy-saving device for a hydraulic press according to claim 1, characterized in that: The clamping assembly (6) comprises: A double-headed screw (601), the double-headed screw (601) is located inside the slide groove (101), the left and right ends of the double-headed screw (601) are rotatably connected to the workbench (1), and the left and right ends of the double-headed screw (601) are provided with gears (602); Racks (603), there are two racks (603), and the upper ends of the racks (603) are fixedly connected to the extension rod (401); There are two moving rods (604), the moving rods (604) are slidably connected to the slide groove (101), and the two moving rods (604) are each provided with a horizontal plate (605) at one end close to each other, and the two horizontal plates (605) are each provided with a clamping plate (606) at one side close to each other.

5. The energy-saving device for a hydraulic press according to claim 4, characterized in that: A plurality of telescopic columns (607) distributed at equal intervals are arranged between the transverse plate (605) and the clamping plate (606), and a second spring (608) is sleeved on the surface of the telescopic column (607).

6. The energy-saving device for a hydraulic press according to claim 4, characterized in that: The gear (602) meshes with the rack (603), and the bottom end of the moving rod (604) is threadedly connected to the double-headed screw (601).

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