Tenon and mortise plate frame type hydraulic press

Abstract

The present application discloses a mortise and tenon board frame type hydraulic machine, relates to the technical field of plate frame hydraulic machine, and comprises a rack, an oil cylinder and an oil cylinder mounting plate, the top of the rack is provided with a containing cavity for containing the oil cylinder, and the oil cylinder is fixed in the containing cavity through the oil cylinder mounting plate; a plurality of connecting plates are vertically and uniformly arranged in the containing cavity along the circumference of the oil cylinder, the bottom end of the connecting plate abuts against the oil cylinder mounting plate, the side of the connecting plate is provided with a first tenon at both ends, the circumferential side wall of the containing cavity is provided with a mortise or a mortise hole, and the first tenon is inserted and matched with the mortise or the mortise hole; in the present application, a plurality of connecting plates are arranged in the containing cavity at the top of the oil cylinder mounting plate in the circumferential direction, and the connecting plates are connected with the inner side wall of the containing cavity through mortise and tenon connection. When the rack has an upward deformation trend, the connecting plates can limit the deformation of the rack by using the rigidity of the connecting plates and the connecting strength of the mortise and tenon, greatly improve the structural strength at the position of the containing cavity, ensure the structural stability, and further prolong the service life of the plate frame type hydraulic machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate and frame hydraulic press, in particular to a mortise and tenon plate and frame hydraulic press. BACKGROUND

[0002] Hydraulic press is the key equipment for producing forgings in forging industry. With the increasingly fierce competition in international equipment manufacturing industry, the manufacturing capacity of large forgings is particularly important, and the manufacturing of large forgings cannot be separated from large hydraulic press. The frame bears huge working load when the hydraulic press is working, and the rigidity and strength of the frame play an important role in the safety of the whole machine and the quality of the product, so the large hydraulic press frame is usually very heavy and the manufacturing process is also relatively complex.

[0003] Plate and frame frame is one of the structural forms of large hydraulic press body. Compared with the traditional large hydraulic press such as frame type hydraulic press, the plate and frame hydraulic press has a unique plate and frame structure, and the weight of the frame of the plate and frame hydraulic press is lower, and the manufacturing process is also simpler. However, under the premise of reducing the weight of the frame of large hydraulic press, it is always an important development direction for the plate and frame hydraulic press body structure to improve the strength and rigidity of the frame.

[0004] In the invention patent with application number "201110444817.4" and name "plate and frame hydraulic press for pressing large molded block and molded plate", the frame of the plate and frame hydraulic press comprises front and rear main plates, cylinder fixing plate, main connecting screw rod and spacer sleeve, the cylinder fixing plate is fixedly connected with the front and rear main plates, the working main cylinder is fixed on the cylinder fixing plate, the front and rear main plates are connected by the main connecting screw rod, and the spacer sleeve is arranged outside the main connecting screw rod. During the pressing process of the working main cylinder, the cylinder port of the front and rear main plates will be subjected to a large stress. Under the action of the large stress, the cylinder port of the front and rear main plates is prone to deformation, thereby causing the frame to be damaged and seriously affecting the service life of the plate and frame hydraulic press. SUMMARY

[0005] The purpose of the present application is to provide a mortise and tenon plate and frame hydraulic press to solve the problems existing in the prior art. A plurality of connecting plates are arranged in the accommodating cavity at the top of the cylinder mounting plate in the circumferential direction, and the connecting plates are connected with the inner side wall of the accommodating cavity by mortise and tenon connection, which can greatly improve the structural strength at the position of the accommodating cavity and ensure the structural stability.

[0006] In order to achieve the above object, the present application provides the following scheme: the present application provides a mortise and tenon board frame type hydraulic machine, including rack, oil cylinder and oil cylinder mounting plate, the rack includes upper beam, lower beam and connecting the upper beam, the lower beam, the lower beam of the rack is installed with workbench, the upper beam of the rack is provided with containing cavity for containing the oil cylinder, the oil cylinder is fixed in the containing cavity through the oil cylinder mounting plate, the telescopic end of the oil cylinder is fixed with sliding block, the sliding block is located above the workbench, the containing cavity is vertically provided with several connecting plates along the circumference of the oil cylinder, the bottom end of the connecting plate is in abutment with the oil cylinder mounting plate, the side of the connecting plate is provided with first tenon at both ends, the circumferential side wall of the containing cavity is provided with mortise or mortise hole, the first tenon is inserted with the mortise or mortise hole.

[0007] Preferably, the cross section of the containing cavity is rectangular, the connecting plate is provided with four pieces, and the connecting plate is connected with the mortise and tenon of the two adjacent side walls in the containing cavity.

[0008] Preferably, the rack includes parallel arranged front main plate and rear main plate, the upper surface of the oil cylinder mounting plate is further provided with side plate, the side plate is in perpendicular abutment with the front main plate, the front main plate, the rear main plate and the side plate enclose the containing cavity, and the front main plate, the rear main plate and the side plate are provided with the mortise or mortise hole.

[0009] Preferably, the front main plate and the rear main plate are provided with intermediate plate, the intermediate plate is in U-shaped structure, the upper inner side of the intermediate plate is provided with second tenon, and the intermediate plate is connected with the side plate through the second tenon.

[0010] Preferably, the side plate is provided with strip-shaped mortise hole, the first tenon and the second tenon are inserted in the strip-shaped mortise hole, and the first tenon and the second tenon are overlapped with each other.

[0011] Preferably, the front main plate and the rear main plate are uniformly and spacedly provided with two intermediate plates.

[0012] Preferably, the lower surface of the workbench is in abutment and fixed with the front main plate, the rear main plate and the intermediate plate, the horizontal reinforcing plate and the vertical reinforcing plate are connected and arranged between the front main plate and the intermediate plate, between the rear main plate and the intermediate plate, the horizontal reinforcing plate is located in the vertical section of the U-shaped structure, the vertical reinforcing plate is located below the workbench, and the top of the vertical reinforcing plate is in abutment with the workbench.

[0013] Preferably, the rack further includes top cover plate, the lower surface of the top cover plate is in abutment with the top of the front main plate, the rear main plate, the side plate, the intermediate plate and the connecting plate.

[0014] Preferably, the rack further comprises a bottom plate, the bottom plate is fixedly connected with the bottom end of the front main plate, the bottom end of the rear main plate and the bottom end of the middle plate, and a reinforcing rib plate is fixedly connected between the front surface of the front main plate and the bottom plate and between the rear surface of the rear main plate and the side plate.

[0015] Preferably, guide columns are arranged on the front main plate and the rear main plate along the moving direction of the sliding block, and guide sleeves are fixedly connected to the four corners of the sliding block and are in sliding fit with the guide columns.

[0016] The present application has the following technical effects relative to the prior art:

[0017] 1. In the present application, a plurality of connecting plates are arranged in the circumferential direction in the accommodating cavity at the top of the oil cylinder mounting plate, and the connecting plates are connected with the inner side wall of the accommodating cavity in a mortise and tenon joint manner. When the rack has an upward deformation trend, the connecting plates can limit the deformation of the rack by using their own rigidity and the connecting strength of the mortise and tenon joint, greatly improve the structural strength at the position of the accommodating cavity, ensure the structural stability, and thus prolong the service life of the plate-and-frame hydraulic machine.

[0018] 2. In the present application, the middle plate and the side plate are connected in a mortise and tenon joint manner, which replaces the connection manner of welding in the traditional technology and does not rely on the welding seam to bear the load, so as to improve the connecting strength between the middle plate and the side plate, avoid the problem of fracture deformation at the connecting position of the middle plate and the side plate, and ensure the stability of the connection. At the same time, the middle plate can also restrict the deformation of the side plate and the connecting plate, and thus ensure the stability of the shape of the accommodating cavity.

[0019] 3. The traditional plate-and-frame structure is composed of a main frame formed by a front main plate, a rear main plate, a workbench and an oil cylinder mounting plate. In the present application, a middle plate is added between the front main plate and the rear main plate, and the middle plate, the connecting plate and the side plate are connected through a mortise and tenon joint, so as to improve the structural strength of the rack and the anti-deformation ability of the oil cylinder mounting plate and the workbench.

[0020] 4. In the present application, the middle plate has a U-shaped structure, and is connected with the connecting plate and the side plate through a mortise and tenon joint to form a rectangular structure, so as to organically combine the workbench and the oil cylinder accommodating cavity. Thus, the upper beam, the column and the workbench of the plate-and-frame hydraulic machine form a closed stress passage, and the deformation amount of the oil cylinder accommodating cavity, the middle plate, the middle part of the front and rear main plates and the workbench after being subjected to stress is restricted, so as to improve the overall stability of the rack. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the mortise and tenon plate frame hydraulic machine in the present application.

[0023] Figure 2 It is a schematic diagram of the structure of the inner member of the accommodating cavity.

[0024] Figure 3 It is a schematic diagram of the rack structure with the top cover plate removed.

[0025] Figure 4 It is a top view of Figure 3 .

[0026] Figure 5 It is a schematic diagram of the cooperation structure of the middle plate and the rear main plate.

[0027] Figure 6 It is a schematic diagram of the structure of the connecting plate, the side plate and the oil cylinder mounting plate.

[0028] Among them, 1 is an opening; 2 is a workbench; 3 is an oil cylinder; 4 is an oil cylinder mounting plate; 5 is a sliding block; 6 is a connecting plate; 7 is a first tenon; 8 is a mortise; 9 is a front main plate; 10 is a rear main plate; 11 is a side plate; 12 is a guide column; 13 is a guide sleeve; 14 is a middle plate; 15 is a second tenon; 16 is a horizontal reinforcing plate; 17 is a vertical reinforcing plate; 18 is a top cover plate; 19 is a front baffle; 20 is a rear baffle; 21 is a bottom plate; 22 is a reinforcing rib plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the present application also belong to the scope of protection of the present application.

[0030] The purpose of the present application is to provide a mortise and tenon plate frame hydraulic machine to solve the problems existing in the prior art. A plurality of connecting plates are arranged in the circumferential direction in the accommodating cavity at the top of the oil cylinder mounting plate, and the connecting plates are connected with the inner side wall of the accommodating cavity by mortise and tenon connection, which can greatly improve the structural strength at the position of the accommodating cavity and ensure the structural stability.

[0031] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] As shown in Figures 1-6 The present embodiment provides a mortise and tenon board frame type hydraulic machine, which comprises a rack, an oil cylinder 3 and an oil cylinder mounting plate 4. The rack comprises an upper beam, a lower beam and a column. The rack is in the shape of a frame with an opening 1 in the middle. The lower beam (i.e. the bottom of the opening 1) is provided with a workbench 2 for placing workpieces to be processed. The upper beam (i.e. the top of the opening 1) is provided with an oil cylinder mounting plate 4. The upper part of the oil cylinder mounting plate 4 is a receiving cavity for accommodating the oil cylinder 3. The oil cylinder 3 is fixed in the receiving cavity through the oil cylinder mounting plate 4. The oil cylinder 3 and the oil cylinder mounting plate 4 are usually connected by bolts. The mounting end of the oil cylinder 3 is located below the oil cylinder mounting plate 4. The front and rear edges of the oil cylinder mounting plate 4 are exposed from the front and rear surfaces of the rack, respectively, so that the oil cylinder mounting plate 4 abuts against the rack, thereby improving the bonding strength between the oil cylinder mounting plate 4 and the rack. The telescopic end of the oil cylinder 3 is fixed with a sliding block 5, which is located above the workbench 2. A plurality of connecting plates 6 are vertically arranged along the circumference of the oil cylinder 3 in the receiving cavity. The bottom end of the connecting plate 6 abuts against the oil cylinder mounting plate 4 perpendicularly. The side portions of the connecting plate 6 are provided with first tenon heads 7 at both ends. The circumferential side wall of the receiving cavity is provided with mortise slots or mortise holes 8. The first tenon heads 7 are inserted into the mortise slots or mortise holes 8.

[0033] During operation, the workpiece to be processed is placed on the workbench 2. The telescopic rod of the oil cylinder 3 is elongated so that the sliding block 5 acts on the workpiece to be processed. While the sliding block 5 exerts a downward pressure on the workpiece to be processed, the sliding block 5 will also be subjected to an upward counterforce. Since the mounting end of the oil cylinder 3 is located below the oil cylinder mounting plate 4, the upward counterforce will be transmitted to the oil cylinder mounting plate 4 through the oil cylinder 3 and ultimately act on the receiving cavity position of the rack. In the present embodiment, a plurality of connecting plates 6 are arranged along the circumference of the receiving cavity at the top of the oil cylinder mounting plate 4, and the connecting plates 6 are connected with the inner side walls of the receiving cavity by mortise and tenon connection. When the rack has a tendency to deform upward, the connecting plates 6 can restrict the deformation of the rack by utilizing their own rigidity and the connection strength of the mortise and tenon, greatly improving the structural strength at the receiving cavity position, ensuring the structural stability, and thereby prolonging the service life of the board frame type hydraulic machine.

[0034] Further, the cross section of the receiving cavity in the present embodiment is in the shape of a rectangle. Four connecting plates 6 are provided, and each connecting plate 6 is connected with two adjacent side walls of the receiving cavity by mortise and tenon connection. The connecting plates 6 and the side walls of the receiving cavity form a regular octahedral structure coaxial with the oil cylinder 3. It should be understood by those skilled in the art that the receiving cavity can have other shapes, and the number and structure of the connecting plates 6 can be changed according to the shape of the receiving cavity.

[0035] Further, the rack in the embodiment includes the front main plate 9 and the rear main plate 10 arranged in parallel, and the front main plate 9 and the rear main plate 10 are both frame structures. The upper surface of the oil cylinder mounting plate 4 is further provided with a side plate 11 arranged oppositely, the side plate 11 is perpendicular to the front main plate 9 and the rear main plate 10, and the front main plate 9, the rear main plate 10 and the side plate 11 form an accommodating cavity; the front main plate 9, the rear main plate 10 and the side plate 11 are all provided with mortise or mortise hole 8, and the two ends of the connecting plate 6 are respectively connected with the side plate 11 and the front main plate 9 or the side plate 11 and the rear main plate 10 by mortise and tenon connection. In the embodiment, the thickness of the connecting plate 6 is greater than that of the front panel, the rear panel and the side plate 11, so that the connecting plate 6 has a certain rigidity.

[0036] In the embodiment, the front main plate 9 and the rear main plate 10 are both vertically provided with a guide column 12, and the four corners of the sliding block 5 are fixedly connected with a guide sleeve 13, the guide sleeve 13 is in sliding fit with the guide column 12, and is used for ensuring the vertical sliding of the sliding block 5.

[0037] Further, in the embodiment, the front main plate 9 and the rear main plate 10 are provided with an intermediate plate 14 therebetween, and the thickness of the intermediate plate 14 is greater than that of the front main plate 9 and the rear main plate 10. The intermediate plate 14 is in U-shaped structure, the upper inner side of the intermediate plate 14 is provided with a second tenon 15, and the intermediate plate 14 is connected with the side plate 11 by mortise and tenon connection through the second tenon 15. The mortise and tenon connection mode of the intermediate plate 14 and the side plate 11 replaces the connection mode of welding in the traditional technology, can improve the connection strength between the intermediate plate 14 and the side plate 11, avoid the problem of fracture and deformation of the connection position between the intermediate plate 14 and the side plate 11, and ensure the stability of the connection. At the same time, the intermediate plate 14 can also restrict the deformation of the side plate 11 and the connecting plate 6, and further ensure the stability of the shape of the accommodating cavity.

[0038] In addition, the intermediate plate 14 is in U-shaped structure, and in combination with the frame structure of the front main plate 9 and the rear main plate 10, there is no connection fit in the middle and lower parts of the rack on the plane of the frame shape, which can improve the longitudinal anti-deformation ability of the middle and bottom of the rack, and in combination with the mortise and tenon structure of the side plate 11 and the intermediate plate 14, the connecting plate 6 and the front main plate 9 and the rear main plate 10, and the connecting plate 6 and the side plate 11 in the upper part of the rack, the stability of the whole rack can be improved.

[0039] Since the intermediate plate 14 and the connecting plate 6 are both connected with the side plate 11 by mortise and tenon connection, the mortise hole 8 in strip shape is formed in the side plate 11 in the embodiment, the first tenon 7 and the second tenon 15 are both inserted into the mortise hole 8, and the first tenon 7 and the second tenon 15 are both provided with a plurality of tenons and are overlapped with each other, so that the vertical force received by the connecting plate 6 or the intermediate plate 14 is not directly applied to the intermediate plate 14 or the connecting plate 6 through the side plate 11, the connecting plate 6 and the intermediate plate 14 restrict each other, and a high-strength overall structure is formed. The side plate 11 can be made of a metal plate with relatively small thickness.

[0040] Further, two intermediate plates 14 are evenly arranged between the front main plate 9 and the rear main plate 10 in the embodiment. In order to improve the connection strength between the front main plate 9, the rear main plate 10 and the intermediate plate 14, the lower surface of the workbench 2 is fixedly connected with the front main plate 9, the rear main plate 10 and the intermediate plate 14 in the embodiment. Horizontal reinforcing plates 16 and vertical reinforcing plates 17 are arranged between the front main plate 9 and the intermediate plate 14 and between the rear main plate 10 and the intermediate plate 14. The horizontal reinforcing plates 16 are located at the vertical sections of the U-shaped structure, and the vertical reinforcing plates 17 are located below the workbench 2, and the top of the vertical reinforcing plate 17 abuts against the workbench 2.

[0041] It should be noted that the positions where the connecting plate 6 is connected with the front main plate 9, the rear main plate 10 and the side plate 11 by the mortise and tenon joint are all flat surfaces. Taking the connecting position of the connecting plate 6 and the front main plate 9 as an example, the connecting plate 6 includes a plate body and first tenon heads 7 at both ends of the plate body. In the embodiment, the connecting plate 6 and the front main plate 9 are inclined to each other after the mortise and tenon joint, and the plate body and the front main plate 9 are in surface-to-surface contact, rather than line-to-surface contact. That is, the plate body of the connecting plate 6 is not necessarily rectangular in shape, but should be an adaptive shape that matches the mortise and tenon structure of the front main plate 9, the rear main plate 10, the side plate 11 and the intermediate plate 14, so as to ensure that the contact surfaces between them are all in surface-to-surface contact.

[0042] Further, the rack also includes a top cover plate 18 in the embodiment. The lower surface of the top cover plate 18 abuts against the top of the front main plate 9, the rear main plate 10, the side plate 11, the intermediate plate 14 and the connecting plate 6. When the top cover plate 18 is provided, the mortise hole 8 on the side plate 11 can be a through hole extending to the top end and the bottom end of the side plate 11, that is, the mortise hole 8 divides the side plate 11 into multiple parts distributed in front and back; when the top cover plate 18 is not provided, the mortise hole 8 on the side plate 11 is at least closed at the top. The preferred structure is still to provide the top cover plate 18, which can further improve the structural strength.

[0043] The rack also includes a front baffle 19 and a rear baffle 20. The front baffle 19 is located at the upper part of the front main plate 9, and the rear baffle 20 is located at the upper part of the rear main plate 10, for shielding the mortise and tenon joint positions of the connecting plate 6 and the front main plate 9 and the connecting plate 6 and the rear main plate 10.

[0044] Further, the rack also includes a bottom plate 21 in the embodiment. The bottom plate 21 is fixedly connected with the bottom end of the front main plate 9, the bottom end of the rear main plate 10 and the bottom end of the intermediate plate 14. The front surface of the front main plate 9 and the bottom plate 21, and the rear surface of the rear main plate 10 and the side plate 11 are both fixedly connected with a reinforcing rib plate 22.

[0045] Any adaptive changes according to actual needs are within the protection scope of the present application.

[0046] It is to be understood that the application is not limited to the details of the above-exemplified embodiment and can be practiced with alteration and in various other specific forms without departing from the spirit or essential characteristics of the application. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application is considered critical unless it is expressly stated in the claims.

Claims

1. A mortise and tenon frame hydraulic press, characterized in that, The device includes a frame, a hydraulic cylinder, and a hydraulic cylinder mounting plate. The frame includes an upper beam, a lower beam, and a column connecting the upper beam and the lower beam. A workbench is mounted on the lower beam of the frame. A receiving cavity for accommodating the hydraulic cylinder is provided in the upper beam of the frame. The hydraulic cylinder is fixed in the receiving cavity by the hydraulic cylinder mounting plate. A slider is fixed to the telescopic end of the hydraulic cylinder, and the slider is located above the workbench. Several connecting plates are evenly and vertically arranged along the circumference of the hydraulic cylinder in the receiving cavity. The bottom end of the connecting plate abuts against the hydraulic cylinder mounting plate. A first tenon is provided at both ends of the side of the connecting plate. A mortise or mortise hole is provided on the circumferential side wall of the receiving cavity. The first tenon is inserted into the mortise or mortise hole. The frame includes a front main board and a rear main board arranged in parallel. The upper surface of the cylinder mounting plate is also provided with a side plate, which is perpendicular to the front main board. The front main board, the rear main board, and the side plate form the receiving cavity. The front main board, the rear main board, and the side plate are all provided with the mortise or mortise. An intermediate plate is provided between the front main board and the rear main board. The intermediate plate has a U-shaped structure and a second tenon is provided on the upper inner side of the intermediate plate. The intermediate plate is connected to the side plate by the second tenon through a mortise and tenon joint. The side plate has a strip-shaped mortise, and both the first tenon and the second tenon are inserted into the strip-shaped mortise, with the first tenon and the second tenon overlapping each other.

2. The tenon-and-mortise frame hydraulic press according to claim 1, characterized in that, The cavity has a rectangular cross-section, and four connecting plates are provided. Each connecting plate is mortise and tenon connected to the adjacent side walls of the cavity.

3. The tenon-and-mortise frame hydraulic press according to claim 1, characterized in that, Two intermediate boards are evenly spaced between the front motherboard and the rear motherboard.

4. The tenon-and-mortise frame hydraulic press according to claim 1, characterized in that, The lower surface of the workbench is fixed to the front main board, the rear main board and the middle plate. A horizontal reinforcing plate and a vertical reinforcing plate are connected between the front main board and the middle plate and between the rear main board and the middle plate. The horizontal reinforcing plate is located in the vertical section of the U-shaped structure, and the vertical reinforcing plate is located below the workbench, with the top of the vertical reinforcing plate abutting against the workbench.

5. The tenon-and-mortise frame hydraulic press according to claim 4, characterized in that, The frame also includes a top cover plate, the lower surface of which abuts against the top of the front main board, the rear main board, the side plate, the middle plate and the connecting plate.

6. The tenon-and-mortise frame hydraulic press according to claim 5, characterized in that, The frame also includes a base plate, which is fixedly connected to the bottom end of the front main board, the bottom end of the rear main board, and the bottom end of the middle plate. Reinforcing ribs are fixedly connected between the front surface of the front main board and the base plate, and between the rear surface of the rear main board and the side plate.

7. The tenon-and-mortise frame hydraulic press according to claim 1, characterized in that, Guide posts are provided on both the front and rear main boards along the moving direction of the slider. Guide sleeves are fixedly connected to the four corners of the slider, and the guide sleeves slide in cooperation with the guide posts.

Images