Double-sliding-block pressure equipment

Abstract

The utility model discloses double-sliding-block pressure equipment which comprises a machine frame, an eccentric shaft which is arranged on the machine frame and driven by a servo power component to rotate, a lower rocker arm which can rotate relative to the eccentric shaft is connected to the eccentric shaft, the lower end of the lower rocker arm is hinged to the top of an inner sliding block, and an outer sliding block is arranged on the periphery of the inner sliding block. The outer sliding block can move up and down relative to the machine frame, the outer sliding block and the inner sliding block can move up and down relative to each other, the top of the outer sliding block is connected with the eccentric shaft through a linkage mechanism, the linkage mechanism comprises two connecting rod mechanisms, and hinge points of the two connecting rod mechanisms are symmetrically distributed on the two sides of the eccentric shaft. Equipment cost and operation cost are greatly reduced, meanwhile, the transmission mechanism is provided with the two connecting rod mechanisms symmetrically distributed on the two sides of the eccentric shaft, the length of the eccentric shaft can be effectively shortened, the structural stability of the eccentric shaft is guaranteed, and further, the service life of the eccentric shaft is prolonged. And the connecting rod mechanism can effectively reduce the requirement on a servo power part under the condition of ensuring the pressure of the outer sliding block.

Description

Technical Field

[0001] The utility model relates to the field of presses, especially double-slider pressing equipment. Background Art

[0002] Presses can be widely used in processes such as cutting, punching, blanking, bending, riveting, and forming. By applying a strong pressure to a metal blank, the metal undergoes plastic deformation and fracture to be processed into parts.

[0003] In some application scenarios, it involves using a double-slider structure with inner and outer nesting for processing. The utility model with the authorization announcement number CN218020395U discloses a double-slider press.

[0004] In this structure, the inner slider and the outer slider are respectively driven to move up and down by independent main shafts, which leads to the need for multiple power sources for driving, increasing the equipment cost and the usage cost. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and provide a double-slider pressing equipment.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] The double-slider pressing equipment includes a frame. An eccentric shaft that rotates self-driven by a servo power component is arranged on the frame. A lower rocker arm is rotatably connected to the eccentric shaft. The lower end of the lower rocker arm is hinged to the top of the inner slider. An outer slider is arranged around the outer periphery of the inner slider. The outer slider can move up and down relative to the frame and can move up and down relative to the inner slider. The top of the outer slider is connected to the eccentric shaft through a linkage mechanism. The linkage mechanism includes two link mechanisms, and the hinge points of the two link mechanisms are symmetrically distributed on both sides of the eccentric shaft.

[0008] Preferably, in the double-slider pressing equipment, the linkage mechanism includes upper rocker arms that are rotatably arranged on the eccentric shaft and located on both sides of the lower rocker arm. A connecting shaft that is parallel to the eccentric shaft and located above the eccentric shaft is connected between the two upper rocker arms. The connecting shaft is connected to the link mechanism. The link mechanism includes a connecting arm that is hinged to the connecting shaft. The connecting arm is also respectively hinged to one end of a support arm and a lifting arm. The other end of the support arm is hinged to the frame. The hinge point of the lifting arm and the connecting arm is located between the hinge point of the connecting arm and the support arm and the connecting shaft. The other end of the lifting arm is hinged to the top of an outer slider sleeved on the outer periphery of the inner slider.

[0009] Preferably, in the double-slider pressing device, the part of one connecting arm pivotally connected to the connecting shaft is a U-shaped fork arm, and the part of the other connecting arm pivotally connected to the connecting shaft is embedded in the U-shaped fork arm.

[0010] Preferably, in the double-slider pressing device, when the outer slider and the inner slider are at the lowest position, the bottoms of the outer slider and the inner slider are at the same height.

[0011] Preferably, in the double-slider pressing device, the height of the first mold connected to the bottom of the inner slider is greater than the height of the second mold connected to the bottom of the outer slider.

[0012] Preferably, in the double-slider pressing device, the bottoms of the outer slider and the inner slider are provided with connecting through grooves.

[0013] Preferably, in the double-slider pressing device, the outer slider is connected to the base frame in a vertically movable manner through first slide rails at its four top corners.

[0014] Preferably, in the double-slider pressing device, the inner slider is connected to the outer slider in a vertically movable manner through second slide rails at its four top corners.

[0015] The advantages of the technical solution of the present utility model are mainly reflected in:

[0016] The press of the present utility model connects the inner and outer sliders to an eccentric shaft, so that it can be driven by a single power source, greatly reducing the equipment cost and operation cost, and effectively meeting the requirements of enterprises for energy conservation and consumption reduction. At the same time, the linkage mechanism has two link mechanisms symmetrically distributed on both sides of the eccentric shaft, which can effectively shorten the length of the eccentric shaft, is beneficial to ensuring the structural stability of the eccentric shaft, and further, the link mechanism can effectively reduce the requirements for servo power components while ensuring the pressure of the outer slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front cross-sectional view of the double-slider pressing device of the present utility model;

[0018] Figure 2 is a partial perspective view of the present utility model;

[0019] Figure 3 is a side cross-sectional view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The purpose, advantages and features of the present utility model will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solution of the present utility model, and any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

[0021] In the description of the solution, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] The following will describe the double-slider pressure device disclosed by the present utility model in conjunction with the drawings. As shown in the attached Figure 1 - attached Figure 3 figures, it includes a frame 100. A eccentric shaft 300 driven to rotate by a servo power component 200 is provided on the frame 100. A lower rocker arm 400 is rotatably connected to the eccentric shaft 300. The lower end of the lower rocker arm 400 is hinged to the top of an inner slider 500. The eccentric shaft 300 is also connected to the frame 100 and an outer slider 700 through a linkage mechanism 600. The linkage mechanism 600 includes two link mechanisms 610. The hinge points of the two link mechanisms 610 are symmetrically distributed. The outer slider 700 is connected to the frame 100 so as to be movable up and down. The outer slider is sleeved on the outer periphery of the inner slider 500 and the two can move relatively up and down.

[0023] During operation, the servo power component 200 drives the eccentric shaft 300 to rotate. The rotation of the eccentric shaft 300 drives the lower rocker arm 400 to swing, thereby driving the inner slider 500 to move up and down relative to the outer slider 700. At the same time, the rotation of the eccentric shaft 300 drives the linkage mechanism 600 to drive the outer slider 700 to move up and down relative to the frame 100.

[0024] Specifically, the frame 100 can be a rectangular frame. The two ends of the eccentric shaft 300 are rotatably provided on the frame 100 and one end is connected to a servo power component 200 that drives its rotation. The eccentric shaft 300 includes an intermediate shaft 310 and end shafts 320 provided at both ends of the intermediate shaft 310. The end shafts 320 at both ends are concentric and eccentrically provided at both ends of the intermediate shaft 310. The end shafts 320 at both ends can be provided on the frame 100 through bearings or bushings 800, etc. The servo power component 200 can be a known reduction motor, which is fixed on the frame 100.

[0025] The linkage mechanism 600 includes upper rocker arms 620 rotatably disposed on the intermediate shaft 310 of the eccentric shaft 300 and located on both sides of the lower rocker arm 400. The two upper rocker arms 620 are defined on the eccentric shaft 300 by a bushing 800 or a bearing where the eccentric shaft 300 is located. A connecting shaft 630 parallel to the eccentric shaft 300 and located above the eccentric shaft 300 is connected between the two upper rocker arms 620. The connecting shaft 630 is connected to the link mechanism 610.

[0026] Each link mechanism 610 includes a connecting arm 611 hinged to the connecting shaft 630. The connecting arm 611 is also hinged to one end of a support arm 612 and a lifting arm 613 respectively. The other end of the support arm 612 is hinged to the frame 100. The hinge point of the lifting arm 613 and the connecting arm 611 is located between the hinge point of the connecting arm 611 and the support arm 612 and the connecting shaft 630. Preferably, the connecting arm 611 is a triangular arm. The connecting shaft 630, the lifting arm 613 and the support arm 612 are hinged at three vertex positions of the connecting arm 611. The other end of the lifting arm 613 is hinged to the top of the outer slider 700.

[0027] The two connecting arms 611 can be misaligned in the axial direction of the connecting shaft 630. More preferably, in order to shorten the length of the connecting shaft 630 and make the force application of the two link mechanisms 610 as balanced as possible, the part of one connecting arm 611 pivoted to the connecting shaft 630 is a U-shaped fork arm, and the part of the other connecting arm 611 pivoted to the connecting shaft 630 is embedded in the U-shaped fork arm.

[0028] The bottom of the inner slider 500 is connected to the first mold, and the bottom of the outer slider 700 is connected to the second mold. To facilitate the connection between the inner slider 500, the outer slider 700 and the first mold and the second mold, when the outer slider 700 and the inner slider 500 are at the lowest position, the bottoms of the outer slider 700 and the inner slider 500 are at the same height. When the axis of the intermediate shaft 310 is located directly below the axis of the end shaft 320 due to the rotation of the end shaft 320, the outer slider 700 and the inner slider 500 are at the lowest position. The bottoms of the outer slider 700 and the inner slider 500 have connecting through grooves. The connecting through grooves can be T-shaped grooves, and multiple connecting through grooves can be provided at the bottoms of the outer slider 700 and the inner slider 500. When connecting the first mold and the second mold, first slide the head of the bolt into the connecting through groove, align the bolt with the connecting holes on the first mold and the second mold, and then lock it with a lock nut.

[0029] Further, to facilitate edge pressing processing, the height of the first mold connected to the bottom of the inner slider 500 is greater than the height of the second mold connected to the bottom of the outer slider 700.

[0030] To ensure the smooth and stable sliding of the outer slider 700 and the inner slider 500, the outer slider 700 is movably connected to the base frame through the first slide rails 900 at its four top corners in the up-and-down direction. The inner slider 500 is movably connected to the outer slider 700 through the second slide rails 001 at its four top corners in the up-and-down direction.

[0031] There are still various implementation manners for the present utility model. All technical solutions formed by using equivalent transformations or equivalent substitutions fall within the protection scope of the present utility model.

Claims

1. Double-slider pressure device, comprising a frame, characterized in that: An eccentric shaft driven to rotate by a servo power component is provided on the frame, and a lower rocker arm is rotatably connected to the eccentric shaft relative thereto. The lower end of the lower rocker arm is hinged to the top of the inner slider. An outer slider is provided around the outer periphery of the inner slider. The outer slider can move up and down relative to the frame and can move up and down relative to the inner slider. The top of the outer slider is connected to the eccentric shaft through a linkage mechanism. The linkage mechanism includes two link mechanisms, and the hinge points of the two link mechanisms are symmetrically distributed on both sides of the eccentric shaft.

2. The double-slider pressure device according to claim 1, wherein: The linkage mechanism includes upper rocker arms rotatably provided on the eccentric shaft relative to the eccentric shaft and located on both sides of the lower rocker arm. A connecting shaft parallel to the eccentric shaft and located above the eccentric shaft is connected between the two upper rocker arms. The connecting shaft is connected to the link mechanism. The link mechanism includes a connecting arm hinged to the connecting shaft. The connecting arm is also respectively hinged to one end of a support arm and a lifting arm. The other end of the support arm is hinged to the frame. The hinge point of the lifting arm and the connecting arm is located between the hinge point of the connecting arm and the support arm and the connecting shaft. The other end of the lifting arm is hinged to the top of an outer slider sleeved on the outer periphery of the inner slider.

3. The double-slider pressure device according to claim 2, wherein: The part of one connecting arm pivotally connected to the connecting shaft is a U-shaped fork arm, and the part of the other connecting arm pivotally connected to the connecting shaft is embedded in the U-shaped fork arm.

4. The double-slider pressure device according to claim 1, wherein: When the outer slider and the inner slider are at the lowest position, the bottoms of the outer slider and the inner slider are at the same height.

5. The double-slider pressure device according to claim 4, characterized in that: The height of the first mold connected to the bottom of the inner slider is greater than the height of the second mold connected to the bottom of the outer slider.

6. The double-slider pressure device according to claim 4, characterized in that: The bottoms of the outer slider and the inner slider have connecting through grooves.

7. The double-slider pressure device according to any one of claims 1-6, characterized in that: The outer slider is connected to the frame through first slide rails at its four top corners so as to be movable up and down.

8. The double-slider pressure device according to any one of claims 1-6, characterized in that: The inner slider is connected to the outer slider through second slide rails at its four top corners so as to be movable up and down.

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