Guide structure of extrusion plate of large-tonnage press

Abstract

The utility model relates to the technical field of press machines, in particular to a guide structure of a large-tonnage press machine extrusion plate, compared with the prior art, a V-shaped guide rail is replaced by a T-shaped connecting sliding rail, a guide wheel is installed on the bottom face of the extrusion plate, and the guide wheel is connected with the connecting sliding rail in an embedded and rolling mode. In addition, the two connecting sliding rails are arranged at the positions, close to the center, of the bottom of the extrusion plate instead of the position under the extrusion plate, the weight of the extrusion plate can be borne, the movement direction of the extrusion plate can be restrained, and therefore rolling friction replaces sliding friction to reduce friction resistance; the bearing and guiding requirements are met; the mounting groove is formed in the top of the connecting sliding rail, and the oil conveying nozzle is arranged in the mounting groove, so that lubricating oil can be output and flows out of the surface of the copper plate through the hollow hole, the space between the guide wheel and the connecting sliding rail is filled with the lubricating oil, sliding smoothness between the guide wheel and the connecting sliding rail is improved, and friction loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a guide structure for an extrusion plate of a large-tonnage press. Background Art

[0002] According to tonnage, presses are divided into small presses, medium presses and large presses. The ones with a working pressure of more than 300 tons are classified as large presses. According to the working mode, presses are divided into horizontal presses and vertical presses. Both types of presses are widely used below 500 tons. However, with the increase in pressure tonnage, horizontal presses are less used due to structural and cost restrictions. Vertical presses are mainly used on the market. The size of the extrusion plate at the working position of the horizontal press increases accordingly with the increase in pressure tonnage, and the weight also increases accordingly. The guide devices commonly used in small tonnage presses, such as the V-shaped guide rails used at the bottom and the pin guide devices used on the side, are difficult to meet actual needs. After long-term use, the copper plate on the surface of the guide rail is also easily damaged. This solution just solves the problem of excessive weight of the extrusion plate of large horizontal presses. Utility Model Content

[0003] The purpose of the utility model is to provide a guide structure for an extrusion plate of a large-tonnage press to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a guiding structure for an extrusion plate of a large-tonnage press, comprising a device frame, a hydraulic cylinder and an extrusion plate, a working chamber being provided in the middle of the top of the device frame, a hydraulic cylinder being installed on the inner wall surface of one side of the working chamber, an extrusion plate being connected to the output end of the hydraulic cylinder, mounting chambers being provided on both sides of the bottom of the extrusion plate, guide wheels being installed inside the mounting chamber through a rotating shaft, two parallel connecting rails being provided on both sides of the top surface of the working chamber at corresponding positions of the mounting chamber, a copper plate being provided on the top surface of the connecting rails, connecting frames being installed on both sides of the device frame at corresponding positions of the working chamber, and guide pins being installed inside the connecting frames.

[0005] Preferably, the connecting slide rail is T-shaped, and the surface of the guide wheel matches the shape of the connecting slide rail, and the guide wheel and the connecting slide rail are engaged and rollingly connected.

[0006] Preferably, a mounting groove is provided in the middle of the top of the connecting slide rail, a plurality of oil delivery nozzles are evenly installed inside the mounting groove, the oil delivery nozzles output lubricating oil, and the copper plate covers the top of the mounting groove.

[0007] Preferably, a plurality of hollow holes are evenly opened on the surface of the copper plate.

[0008] Preferably, guide blocks are provided on both sides of the extrusion plate, and connecting sleeves are provided inside the guide blocks. The connecting sleeves are fitted and slidably connected with the guide pin shaft, and the connection between the connecting sleeves and the guide pin shaft is coated with lubricating oil.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the prior art, the present invention replaces the V-shaped guide rail with a "T"-shaped connecting slide rail, and a guide wheel is also installed on the bottom surface of the extrusion plate. The guide wheel and the connecting slide rail are engaged and rolled, that is, the sliding friction force is changed to rolling friction force, and the two connecting slide rails are both arranged near the center of the bottom of the extrusion plate, rather than directly below it, which can not only bear the weight of the extrusion plate itself, but also constrain the direction of movement of the extrusion plate, thereby realizing the free forward and backward movement of the extrusion plate, thereby replacing sliding friction with rolling friction to reduce frictional resistance, which meets both load-bearing and guiding requirements; by arranging a mounting groove at the top of the connecting slide rail, an oil nozzle is arranged inside the mounting groove, that is, lubricating oil can be output, and it flows out from the surface of the copper plate through the hollow hole, so that the space between the guide wheel and the connecting slide rail is filled with lubricating oil, thereby improving the smooth sliding between the guide wheel and the connecting slide rail and reducing friction loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0012] Figure 3 This is a schematic diagram of the installation groove structure of the utility model.

[0013] In the figure: 1. Device frame; 2. Hydraulic cylinder; 3. Extrusion plate; 4. Connecting frame; 5. Guide pin; 6. Guide block; 7. Connecting sleeve; 8. Connecting rail; 9. Mounting groove; 10. Oil nozzle; 11. Mounting cavity; 12. Guide wheel; 13. Copper plate; 14. Hollow hole; 15. Working cavity. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0016] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0017] See also Figure 1-3 The utility model provides a technical solution: a guiding structure for an extrusion plate of a large-tonnage press, comprising a device frame 1, a hydraulic cylinder 2 and an extrusion plate 3. A working chamber 15 is provided in the middle of the top of the device frame 1, a hydraulic cylinder 2 is installed on the inner wall surface of one side of the working chamber 15, and the output end of the hydraulic cylinder 2 is connected to the extrusion plate 3. Installation chambers 11 are provided on both sides of the bottom of the extrusion plate 3, and a guide wheel 12 is installed inside the installation chamber 11 through a rotating shaft. Two parallel connecting slide rails 8 are provided on both sides of the top surface of the working chamber 15 at positions corresponding to the installation chamber 11, and a copper plate 13 is provided on the top surface of the connecting slide rail 8. Connecting frames 4 are installed on both sides of the device frame 1 at positions corresponding to the working chamber 15, and guide pins 5 are installed inside the connecting frame 4.

[0018] Furthermore, the connecting slide rail 8 is in a "T" shape, and the surface of the guide wheel 12 matches the shape of the connecting slide rail 8, and the guide wheel 12 and the connecting slide rail 8 are engaged and rollingly connected.

[0019] Furthermore, a mounting groove 9 is provided in the middle of the top of the connecting slide rail 8. Several oil delivery nozzles 10 are evenly installed inside the mounting groove 9. The oil delivery nozzles 10 output lubricating oil, and the copper plate 13 covers the top of the mounting groove 9. According to actual use requirements, the oil delivery nozzles 10 are connected to the lubricating oil storage tank through a corresponding delivery pump.

[0020] Furthermore, a plurality of hollow holes 14 are evenly formed on the surface of the copper plate 13 .

[0021] Furthermore, guide blocks 6 are provided on both sides of the extrusion plate 3, and a connecting sleeve 7 is provided inside the guide block 6. The connecting sleeve 7 is fitted and slidably connected with the guide pin shaft 5, and the connection between the connecting sleeve 7 and the guide pin shaft 5 is coated with lubricating oil.

[0022] Compared with the prior art, the present invention replaces the V-shaped guide rail with a "T"-shaped connecting slide rail 8, and also installs a guide wheel 12 on the bottom surface of the extrusion plate 3. The guide wheel 12 is engaged with the connecting slide rail 8 and is rollingly connected, that is, the sliding friction force is changed to rolling friction force, and the two connecting slide rails 8 are both arranged near the center of the bottom of the extrusion plate 3, rather than directly below it, which can not only bear the weight of the extrusion plate 3 itself, but also constrain the direction of movement of the extrusion plate 3, so that the extrusion plate 3 can move forward and backward freely, thereby replacing sliding friction with rolling friction to reduce frictional resistance, which meets both load-bearing and guiding requirements; by arranging a mounting groove 9 at the top of the connecting slide rail 8, an oil nozzle 10 is arranged inside the mounting groove 9, that is, lubricating oil can be output, and it flows out from the surface of the copper plate 13 through the hollow hole 14, so that the space between the guide wheel 12 and the connecting slide rail 8 is filled with lubricating oil, thereby improving the smooth sliding between the guide wheel 12 and the connecting slide rail 8 and reducing friction loss.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide structure for an extrusion plate of a large-tonnage press, comprising a device frame (1), a hydraulic cylinder (2) and an extrusion plate (3), characterized in that: A working chamber (15) is provided in the middle of the top of the device frame (1), a hydraulic cylinder (2) is installed on the inner wall surface of one side of the working chamber (15), an output end of the hydraulic cylinder (2) is connected to an extrusion plate (3), installation chambers (11) are provided on both sides of the bottom of the extrusion plate (3), a guide wheel (12) is installed inside the installation chamber (11) through a rotating shaft, two parallel connecting slide rails (8) are provided on both sides of the top surface of the working chamber (15) at positions corresponding to the installation chamber (11), a copper plate (13) is provided on the top surface of the connecting slide rail (8), connecting frames (4) are installed on both sides of the device frame (1) at positions corresponding to the working chamber (15), and a guide pin shaft (5) is installed inside the connecting frame (4).

2. The guide structure for the extrusion plate of a large-tonnage press according to claim 1, characterized in that: The connecting slide rail (8) is T-shaped, and the surface of the guide wheel (12) matches the shape of the connecting slide rail (8). The guide wheel (12) and the connecting slide rail (8) are engaged and rollingly connected.

3. The guide structure for the extrusion plate of a large-tonnage press according to claim 1, characterized in that: A mounting groove (9) is provided in the middle of the top of the connecting slide rail (8), and a plurality of oil delivery nozzles (10) are evenly installed inside the mounting groove (9). The oil delivery nozzles (10) deliver lubricating oil, and the copper plate (13) covers the top of the mounting groove (9).

4. The guide structure for an extrusion plate of a large-tonnage press according to claim 1, characterized in that: A plurality of hollow holes (14) are evenly formed on the surface of the copper plate (13).

5. The guide structure for the extrusion plate of a large-tonnage press according to claim 1, characterized in that: Guide blocks (6) are provided on both sides of the extrusion plate (3), and a connecting sleeve (7) is provided inside the guide block (6). The connecting sleeve (7) and the guide pin shaft (5) are fitted and slidably connected, and the connection between the connecting sleeve (7) and the guide pin shaft (5) is smeared with lubricating oil.

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