Novel hydraulic structure of press machine

Abstract

The utility model discloses a novel hydraulic structure of a press machine, which relates to the technical field of hydraulic structures and comprises a press machine support, a hydraulic cylinder mounted at the top of the press machine support and a piston rod fixed at the telescopic end of the hydraulic cylinder, and the tail end of the piston rod penetrates through the press machine support and is fixedly provided with a press head. The device further comprises a magnetic attraction mechanism used for processing metal impurities on the piston rod body, the magnetic attraction mechanism comprises a supporting cylinder which is arranged on the piston rod body in a sleeving mode and perpendicularly and fixedly connected with the bottom face of the press support, a magnetic ring is fixed to the bottom of the inner wall of the supporting cylinder, and an elastic impurity removing part is further arranged above the magnetic ring. Through the arrangement of the magnetic ring, when the pressing head completes stamping and the hydraulic cylinder is started to contract the piston rod, the piston rod can synchronously penetrate and contract the inner side of the supporting barrel, then the magnetic ring continuously adsorbs metal impurities on a rod body of the piston rod in the process, the metal impurity removal effect is achieved, and the metal impurities are prevented from being stubborn attached to the piston rod; and a built-in element of the hydraulic cylinder is worn along with the contraction movement of the piston rod.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic structure technology, specifically to a novel hydraulic structure for a press. Background Technology

[0002] The installation of hydraulic cylinders for conventional presses typically involves mounting an independent hydraulic cylinder as a whole in a hole in the middle of the upper beam of the press, and connecting it using flanges or bolts or other methods.

[0003] In order to ensure the flexibility of the piston rod of the hydraulic cylinder during extension and retraction, the conventional piston rod is usually coated with lubricating oil to reduce frictional resistance during extension and retraction.

[0004] However, the application of lubricating oil can easily cause metal shavings to adhere to the piston rod surface during stamping, resulting in scoring and wear between the piston and cylinder, the piston rod and cylinder head bore, and sealing elements, thus affecting the service life of the hydraulic cylinder. Utility Model Content

[0005] To solve the above-mentioned technical problems, a new type of hydraulic structure for presses is provided, which solves the problem in the prior art that the lubricating oil on the piston rod of the hydraulic cylinder easily causes metal shavings to adhere to the piston rod surface during the stamping process, resulting in scoring and wear between the piston and cylinder body, piston rod and cylinder head hole and sealing elements, thus affecting the service life of the hydraulic cylinder.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel hydraulic structure for a press, including a press support, a hydraulic cylinder installed on the top of the press support, and a piston rod fixed to the telescopic end of the hydraulic cylinder. The end of the piston rod passes through the press support and is fixed with a pressure head. It also includes a magnetic attraction mechanism for handling metal impurities on the piston rod.

[0007] The magnetic attraction mechanism includes a support cylinder sleeved on the piston rod body and fixedly perpendicular to the bottom surface of the press bracket. A magnetic ring is fixed at the bottom of the inner wall of the support cylinder, and an elastic impurity removal part is provided above the magnetic ring.

[0008] The elastic impurity removal section includes a movable ring that is slidably disposed in a circular shape above the inner side of the support cylinder, a cylindrical scraper fixed to the bottom surface of the movable ring, and a driving force assembly for causing the cylindrical scraper to descend. The end of the cylindrical scraper is in contact with the inner wall of the magnetic ring.

[0009] Preferably, the driving component includes a transmission rack that runs vertically through the inner wall of the press bracket and is fixedly connected to the movable ring. A movable column is also arranged laterally on the inner side of the support cylinder. One end of the movable column is rotatably connected to a support plate that is fixedly connected to the bottom surface of the press bracket. The rod of the movable column is tightly sleeved with a transmission gear that meshes with the transmission rack.

[0010] Preferably, the driving assembly further includes an inclined assist rod that is securely sleeved to the other end of the movable column, and the outer wall of the pressure head is fixed with an actuating block corresponding to the assist rod.

[0011] Preferably, a spring telescopic rod is also installed on the top of the press bracket, and the telescopic end of the spring telescopic rod passes through the press bracket and is fixedly connected to the movable ring.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] (1) By setting the magnetic ring, when the pressure head is completed and the hydraulic cylinder is opened to retract the piston rod, the piston rod can simultaneously retract through the inner side of the support cylinder. In this process, the magnetic ring continuously adsorbs metal impurities on the piston rod body, thereby achieving the effect of removing metal impurities, so as to prevent metal impurities from stubbornly adhering to the piston rod and wearing the internal components of the hydraulic cylinder along with the retraction of the piston rod.

[0014] (2) By setting up the elastic impurity removal part, when the piston rod retracts inside the support cylinder, the driving component can move the cylindrical scraper down quickly and vertically to scrape the inner wall of the magnetic ring, removing metal impurities from the magnetic ring, thereby replacing manual cleaning of metal impurities on the inner wall of the magnetic ring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the support cylinder of this utility model;

[0017] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0018] The numbers on the map are:

[0019] 1. Press bracket; 2. Hydraulic cylinder; 3. Piston rod; 4. Support cylinder; 5. Magnetic ring; 6. Movable ring; 7. Cylindrical scraper; 8. Movable column; 9. Transmission gear; 10. Transmission rack; 11. Assist rod; 12. Spring telescopic rod; 13. Press head; 14. Actuating block. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] Reference Figure 1-3 As shown, a novel hydraulic structure for a press includes a press support 1, a hydraulic cylinder 2 mounted on the top of the press support 1, and a piston rod 3 fixed to the telescopic end of the hydraulic cylinder 2. The end of the piston rod 3 passes through the press support 1 and is fixed with a pressure head 13.

[0022] When hydraulic cylinder 2 is activated, the extension and retraction end of hydraulic cylinder 2, namely the piston rod 3 and the pressure head 13, moves downward as a whole, thereby causing the pressure head 13 to contact the workpiece and perform a stamping effect on the workpiece.

[0023] Furthermore, referring to Figure 1-3 As shown, it is worth noting that a magnetic attraction mechanism for handling metal impurities on the piston rod 3 body is also included.

[0024] The magnetic attraction mechanism includes a support cylinder 4 sleeved on the piston rod 3 and fixedly perpendicular to the bottom surface of the press bracket 1, and a magnetic ring 5 is fixed at the bottom of the inner wall of the support cylinder 4.

[0025] With the setting of the magnetic ring 5, when the press head 13 completes the stamping and the hydraulic cylinder 2 is opened to retract the piston rod 3, the piston rod 3 can simultaneously retract through the inner side of the support cylinder 4. In this process, the magnetic ring 5 continuously adsorbs the metal impurities on the piston rod 3, thereby achieving the effect of removing metal impurities and preventing metal impurities from stubbornly adhering to the piston rod 3 and from wearing down the internal components of the hydraulic cylinder 2 with the retraction and movement of the piston rod 3.

[0026] Furthermore, referring to Figure 2 and Figure 3 As shown, it is worth noting that an elastic impurity removal part is also provided above the magnetic ring 5;

[0027] The elastic impurity removal part includes a movable ring 6 that is slidably disposed in a ring shape on the upper inner side of the support cylinder 4, a cylindrical scraper 7 fixed to the bottom surface of the movable ring 6, and a driving force assembly for the downward movement of the cylindrical scraper 7. The end of the cylindrical scraper 7 is in contact with the inner wall of the magnetic ring 5.

[0028] With the setting of the elastic impurity removal part, when the piston rod 3 retracts inside the support cylinder 4, the driving component can act on the cylindrical scraper 7 to quickly move down and vertically scrape the inner wall of the magnetic ring 5, removing metal impurities from the magnetic ring 5, thereby replacing manual cleaning of metal impurities on the inner wall of the magnetic ring 5.

[0029] Furthermore, referring to Figure 3As shown, it is worth noting that the driving force component includes a transmission rack 10 that runs vertically through the inner wall of the press bracket 1 and is fixedly connected to the movable ring 6. The inner side of the support cylinder 4 is also provided with a movable column 8. One end of the movable column 8 is rotatably connected to a support plate that is fixedly connected to the bottom surface of the press bracket 1 (not shown). The rod body of the movable column 8 is tightly sleeved with a transmission gear 9 that meshes with the transmission rack 10.

[0030] The driving assembly also includes an inclined booster rod 11 that is fastened to the other end of the movable column 8, and an actuating block 14 corresponding to the booster rod 11 is fixed on the outer wall of the pressure head 13.

[0031] During the retraction of the piston rod 3, the actuating block 14, along with the pressure head 13, enters the inner side of the support cylinder 4 and pre-contacts the end of the assist rod 11. Thus, the assist rod 11 is squeezed, causing the movable column 8 to rotate, which in turn causes the transmission gear 9 to mesh with the transmission rack 10. The transmission rack 10 is then forced to move downward and push down the cylindrical scraper 7, causing the cylindrical scraper 7 to scrape against the inner wall of the magnetic ring 5.

[0032] Furthermore, referring to Figure 1 As shown, it is worth noting that a spring telescopic rod 12 is also installed on the top of the press bracket 1. The telescopic end of the spring telescopic rod 12 passes through the press bracket 1 and is fixedly connected to the movable ring 6.

[0033] When the actuating block 14 presses the assist rod 11, causing the transmission gear 9 to mesh with the transmission rack 10, the movable ring 6 carries the cylindrical scraper 7 downward. During this process, the movable ring 6 can simultaneously stretch the spring telescopic rod 12. In this way, by utilizing the elastic force of the spring telescopic rod 12, when the piston rod 3 extends downward, the pressure on the actuating block 14 decreases as it moves downward. The movable ring 6 can then quickly slide upward in the opposite direction under the elastic force of the spring telescopic rod 12, driving the cylindrical scraper 7 to reset, making it convenient for secondary use.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel hydraulic structure of a press machine, comprising a press frame (1), a hydraulic cylinder (2) installed on the top of the press frame (1), and a piston rod (3) fixed to the telescopic end of the hydraulic cylinder (2), the end of the piston rod (3) penetrating through the press frame (1) and fixed with a pressure head (13), characterized in that, It also includes a magnetic attraction mechanism for processing the piston rod (3) rod body metal impurities; The magnetic attraction mechanism includes a support cylinder (4) sleeved on the piston rod (3) rod body and fixedly connected with the bottom surface of the press support (1), a magnetic ring (5) is fixedly connected to the bottom of the inner wall of the support cylinder (4), and an elastic impurity removal part is further arranged above the magnetic ring (5); The elastic impurity removal part includes a movable ring (6) arranged in a circular sliding manner on the inner side of the support cylinder (4), a cylinder-shaped scraper (7) fixedly connected to the bottom surface of the movable ring (6), and a driving assembly for driving the cylinder-shaped scraper (7) to move downward, and the end of the cylinder-shaped scraper (7) is in contact with the inner wall of the magnetic ring (5).

2. A hydraulic structure of a press according to claim 1, wherein The driving assembly includes a transmission rack (10) vertically penetrating the inner wall of the press support (1) and fixedly connected with the movable ring (6), and the inner side of the support cylinder (4) is further provided with a movable column (8), one end of the movable column (8) is rotatably connected with a support piece fixedly connected with the bottom surface of the press support (1), and the rod body of the movable column (8) is tightly sleeved with a transmission gear (9) engaged with the transmission rack (10).

3. A hydraulic structure of a press according to claim 2, wherein The driving assembly further includes a booster rod (11) arranged in an inclined manner and tightly sleeved on the other end of the movable column (8), and the outer wall of the pressure head (13) is fixedly connected with a touch block (14) corresponding to the booster rod (11).

4. The hydraulic structure of a new type of press according to claim 3, characterized in that, The top of the press support (1) is further provided with a spring telescopic rod (12), and the telescopic end of the spring telescopic rod (12) penetrates the press support (1) and is fixedly connected with the movable ring (6).

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