Structure for preventing middle deformation of moving table of hydraulic drawing press

Abstract

The utility model provides a structure for preventing middle deformation of a moving table of a hydraulic drawing press, which comprises a moving worktable assembled on the worktable, a rectangular square hole is formed in the middle of the worktable of the hydraulic drawing press, and a plurality of grooves are formed in the middle of the rectangular square hole formed in the worktable. And four high-strength stress supporting rods capable of bearing the pressure of the full tonnage are additionally arranged. According to the structure for preventing the middle of the moving table from deforming of the hydraulic drawing press, the multiple high-strength stress supporting rods capable of bearing the pressure of the full tonnage are additionally arranged, when the suspended part in the middle of the moving table is stressed, force can be transmitted to the stress supporting rods through the stress rib plates and then transmitted to the workbench through the stress supporting rods, and therefore the working efficiency is greatly improved. Concentrated force borne by the suspended part of the movable table is changed into distributed force which is evenly distributed and dispersed in stress through the stress supporting rods, the stress characteristic of the distributed force is that the whole stress area is increased, the pressure borne by the unit stress area is reduced, the movable table cannot deform, and the overall strength of the movable table is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of a stretching hydraulic press, in particular to a middle part deformation structure of an anti-movement platform of a stretching hydraulic press. Background Art

[0002] With the rapid development of the international and domestic economic situation, all walks of life in China are following closely, and the development is changing with each passing day. This has also driven the development of the domestic hydraulic press industry, from the initial small-tonnage hydraulic press to the current tens of thousands of tons of hydraulic presses, from the 32 series of universal hydraulic presses to the current 27 series of hydraulic presses, 79 series of hydraulic presses, 71 series of composite material forming hydraulic presses, 46 series of marine hydraulic presses, 30 series of single-column hydraulic presses, etc. Among them, the 27 series of hydraulic presses are most widely used in the field of automotive parts products. This 27 series of hydraulic presses are divided into two types: with a mobile platform and without a mobile platform. During the use of the 27 series hydraulic press with a mobile platform, the center position of the mobile platform is often deformed because only a flat plate on the mobile platform is stressed. After the mobile platform is deformed, the hole on the mobile platform panel will tilt, and the stretching rod passing through the middle hole of the mobile platform will rub against one side of the hole, causing the hole on the mobile platform to become a waist-shaped hole, and the stretching rod will also cause bending, deformation or breakage. Since the bending deformation degree of each stretching rod is different, the length of the stretching rod is no longer the same. When the stretching rod contacts the mold, the force magnitude of the force point where the mold and the stretching rod contact is different, resulting in unqualified stretched products. In more serious cases, the stretching rod will be directly stuck on the mobile table panel, damaging the customer's mold and the press itself, causing serious losses to the customer. Based on this problem, hydraulic press manufacturers have come up with many ways. Some of them increase the thickness of the mobile table panel. After the thickness of the mobile table panel increases, coupled with the stroke of the lower cylinder, the height of the entire mobile table becomes higher, the weight increases too much, the press cost increases beyond the customer's budget, and sales are not ideal. Some add ribs in the middle of the mobile table to prevent the middle of the mobile table from deforming. This method increases the strength of the mobile table. If the number of user stretching holes is not large, it can still be used. However, when the number of user stretching holes is large and the frequency of use is high, the problem of deformation in the middle of the mobile table still exists. For this reason, a structure for preventing the middle part of the mobile table from deforming of a stretching hydraulic press is proposed. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide a structure for preventing the middle part of a mobile platform from being deformed, comprising a mobile workbench, wherein the mobile workbench is assembled on the workbench, and a rectangular square hole is opened in the middle of the workbench of the stretching hydraulic press, and four high-strength force-bearing support rods that can withstand full tonnage pressure are added in the middle of the rectangular square hole opened in the workbench, the force-bearing support rods comprising a first force-bearing support rod, a second force-bearing support rod, a third force-bearing support rod, and a fourth force-bearing support rod, one end of the first force-bearing support rod, the second force-bearing support rod, the third force-bearing support rod, and the fourth force-bearing support rod are welded in the rectangular square hole in the middle of the workbench at one end, and supported on the force-bearing rib plate of the mobile workbench at the other end, a hydraulic pad is arranged on the mobile workbench, and a lower ejection cylinder and a lower edge pressing cylinder are respectively installed at the bottom of the lower end of the structure for preventing the middle part of a mobile platform from being deformed.

[0004] Preferably, the lower ejection cylinder is located on the left side of the lower edge pressing cylinder.

[0005] Preferably, when the suspended part of the mobile workbench is subjected to force, the force is transmitted to the first force support rod, the second force support rod, the third force support rod and the fourth force support rod through the force rib plate of the mobile platform, and then transmitted to the workbench through the first force support rod, the second force support rod, the third force support rod and the fourth force support rod.

[0006] Preferably, the concentrated force exerted on the suspended part of the mobile workbench is converted into a distributed force with uniformly dispersed force through the first force-bearing support rod, the second force-bearing support rod, the third force-bearing support rod, and the fourth force-bearing support rod. The force characteristic of the distributed force is that the entire force-bearing area increases, the pressure per unit force-bearing area becomes less, the mobile workbench does not deform, and the overall strength of the mobile workbench is ensured.

[0007] Preferably, the first force-bearing support rod, the second force-bearing support rod, the third force-bearing support rod, and the fourth force-bearing support rod have the same specifications and sizes.

[0008] Beneficial effect: The anti-deformation structure of the middle part of the mobile platform of the stretching hydraulic press adds several high-strength force-bearing support rods that can withstand full tonnage pressure. When the suspended part in the middle of the mobile platform is subjected to force, it will be transmitted to these force-bearing support rods through the force-bearing ribs, and then transmitted to the workbench through the force-bearing support rods. The concentrated force on the suspended part of the mobile platform is converted into a distributed force with uniformly distributed and dispersed force through the force-bearing support rods. The force characteristic of the distributed force is that the entire force-bearing area increases, the pressure per unit force-bearing area becomes less, the mobile platform will not be deformed, and the overall strength of the mobile platform is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0010] Figure 1 This is a front view of the middle deformation structure of the anti-movement platform of a stretching hydraulic press of the utility model;

[0011] Figure 2 This is a top view of the middle deformation structure of the anti-movement platform of a stretching hydraulic press of the utility model;

[0012] In the figure: 1. First force-bearing support rod; 2. Second force-bearing support rod; 3. Third force-bearing support rod; 4. Fourth force-bearing support rod; 5. Force-bearing rib plate of movable platform; 6. Moving workbench; 7. Hydraulic pad; 8. Workbench; 9. Lower ejection cylinder; 10. Lower edge pressing cylinder. DETAILED DESCRIPTION

[0013] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0014] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0015] See also Figure 1-2 , a structure for preventing the middle part of a mobile platform from being deformed of a stretching hydraulic press, comprising a movable workbench 6, wherein the movable workbench 6 is assembled on a workbench 8, and a rectangular square hole is opened in the middle of the workbench 8 of the stretching hydraulic press, and four high-strength force-bearing support rods that can withstand full tonnage pressure are added in the middle of the rectangular square hole opened in the workbench 8, and the force-bearing support rods comprise a first force-bearing support rod 1, a second force-bearing support rod 2, a third force-bearing support rod 3, and a fourth force-bearing support rod 4, one end of the first force-bearing support rod 1, the second force-bearing support rod 2, the third force-bearing support rod 3, and the fourth force-bearing support rod 4 are welded in the rectangular square hole in the middle of the workbench 8 at one end, and supported on a movable platform force-bearing rib plate 5 of the movable workbench 6 at the other end, and a hydraulic pad 7 is arranged on the movable workbench 6, and a lower ejection cylinder 9 and a lower edge pressing cylinder 10 are respectively installed at the bottom of the lower end of the structure for preventing the middle part of a mobile platform from being deformed of the stretching hydraulic press.

[0016] Among them, the lower ejection cylinder 9 is located on the left side of the lower edge pressing cylinder 10.

[0017] Among them, when the suspended part of the mobile workbench 6 is subjected to force, the force is transmitted to the first force support rod 1, the second force support rod 2, the third force support rod 3, and the fourth force support rod 4 through the mobile platform force rib plate 5, and then transmitted to the workbench 8 through the first force support rod 1, the second force support rod 2, the third force support rod 3, and the fourth force support rod 4.

[0018] Among them, the concentrated force exerted on the suspended part of the mobile workbench 6 is transformed into a distributed force with uniformly distributed and dispersed force through the first force-bearing support rod 1, the second force-bearing support rod 2, the third force-bearing support rod 3, and the fourth force-bearing support rod 4. The force characteristic of the distributed force is that the entire force-bearing area increases, and the pressure per unit force-bearing area becomes less, the mobile workbench 6 does not deform, and the overall strength of the mobile workbench 6 is ensured.

[0019] Among them, the first force-bearing support rod 1, the second force-bearing support rod 2, the third force-bearing support rod 3, and the fourth force-bearing support rod 4 have the same specifications and sizes.

[0020] It should be noted that the movable workbench 6 is assembled on the workbench 8, and a rectangular square hole is opened in the middle of the workbench 8 of the stretching hydraulic press, and the part of the movable table above the square hole is suspended and subjected to concentrated force. This force characteristic is easy to cause the middle part of the movable table to deform and sag;

[0021] In the middle of the rectangular square hole opened on the workbench 8, four high-strength force-bearing support rods that can withstand the full tonnage pressure are added. The force-bearing support rods include a first force-bearing support rod 1, a second force-bearing support rod 2, a third force-bearing support rod 3, and a fourth force-bearing support rod 4. One end of the first force-bearing support rod 1, the second force-bearing support rod 2, the third force-bearing support rod 3, and the fourth force-bearing support rod 4 is welded in the rectangular square hole in the middle of the workbench 8, and the other end is supported on the mobile table force-bearing rib plate 5 of the mobile workbench 6. We add several high-strength force-bearing support rods that can withstand the full tonnage pressure in the middle of the square hole of the workbench. This One end of these support rods is welded in the square hole in the middle of the workbench 8, and the other end is supported on the mobile platform force rib plate 5 of the mobile workbench 6. In this way, when the suspended part in the middle of the mobile workbench 6 is stressed, it will be transmitted to these force support rods through the mobile platform force rib plate 5, and then transmitted to the workbench 8 through the force support rods. The concentrated force on the suspended part of the mobile workbench 6 is converted into a distributed force with uniform and dispersed force through the force support rods. The force characteristic of the distributed force is that the entire force-bearing area increases, and the pressure per unit force-bearing area will decrease, the mobile workbench 6 will not be deformed, and the overall strength of the mobile platform is guaranteed;

[0022] A hydraulic pad 7 is provided on the movable workbench 6, and a lower ejection cylinder 9 and a lower edge pressing cylinder 10 are respectively installed at the bottom of the lower end of the anti-deformation structure of the middle part of the movable table of the stretching hydraulic press;

[0023] After practical testing, since the change to this structure, the problem of deformation of the movable workbench 6 has never occurred, reducing the maintenance rate. Moreover, after this change, the press only increases the weight of the support rod, and the cost is only increased by a small part, which is both economical and affordable. The 27 series hydraulic presses all adopt this structure, and this structure has also fully withstood the test during use.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A structure for preventing the middle part of a mobile platform from being deformed of a stretching hydraulic press, comprising a mobile working platform (6), characterized in that: The movable workbench (6) is assembled on the workbench (8), and a rectangular square hole is opened in the middle of the workbench (8) of the stretching hydraulic press. Four high-strength force-bearing support rods capable of withstanding full tonnage pressure are added in the middle of the rectangular square hole opened in the workbench (8). The force-bearing support rods include a first force-bearing support rod (1), a second force-bearing support rod (2), a third force-bearing support rod (3), and a fourth force-bearing support rod (4). One end of the first force-bearing support rod (1), the second force-bearing support rod (2), the third force-bearing support rod (3), and the fourth force-bearing support rod (4) is welded in the rectangular square hole in the middle of the workbench (8), and the other end is supported on the movable table force-bearing rib plate (5) of the movable workbench (6). A hydraulic pad (7) is arranged on the movable workbench (6), and a lower ejection cylinder (9) and a lower edge pressing cylinder (10) are respectively installed at the bottom of the lower end of the anti-moving table middle deformation structure of the stretching hydraulic press.

2. The anti-movement platform middle deformation structure of a stretching hydraulic press according to claim 1, characterized in that: The lower ejection cylinder (9) is located on the left side of the lower edge pressing cylinder (10).

3. The anti-movement platform middle deformation structure of a stretching hydraulic press according to claim 1, characterized in that: When the suspended part of the movable workbench (6) is stressed, the stress is transmitted to the first stress-bearing support rod (1), the second stress-bearing support rod (2), the third stress-bearing support rod (3), and the fourth stress-bearing support rod (4) through the movable workbench stress-bearing rib plate (5), and then transmitted to the workbench (8) through the first stress-bearing support rod (1), the second stress-bearing support rod (2), the third stress-bearing support rod (3), and the fourth stress-bearing support rod (4).

4. The anti-movement platform middle deformation structure of a stretching hydraulic press according to claim 1, characterized in that: The concentrated force on the suspended part of the mobile workbench (6) is converted into a distributed force that is evenly distributed and dispersed through the first force-bearing support rod (1), the second force-bearing support rod (2), the third force-bearing support rod (3), and the fourth force-bearing support rod (4). The force-bearing characteristic of the distributed force is that as the entire force-bearing area increases, the pressure borne by the unit force-bearing area decreases, the mobile workbench (6) does not deform, and the overall strength of the mobile workbench (6) is ensured.

5. The anti-movement platform middle deformation structure of a stretching hydraulic press according to claim 1, characterized in that: The first force-bearing support rod (1), the second force-bearing support rod (2), the third force-bearing support rod (3), and the fourth force-bearing support rod (4) are of the same size.

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