Hinge type cubic press

Abstract

The utility model belongs to the field of superhard material synthesis equipment, and particularly relates to a hinge type cubic press, which comprises an upper footstock, a lower footstock, a front side beam, a rear side beam, a left side beam and a right side beam, and the upper ends and the lower ends of the four side beams are respectively connected with four lug parts on the peripheries of the upper footstock and the lower footstock through super bolts. Each of the upper top seat and the lower base comprises a cross beam and a hydraulic machine connecting frame, the cross beam is composed of two horizontal beams which are vertically stacked and perpendicular to each other, a first through groove is formed in the bottom surface of the middle of the upper horizontal beam, a second through groove is formed in the top surface of the middle of the lower horizontal beam, the sum of the depths of the first through groove and the second through groove is equal to the thickness of the horizontal beams, and the first through groove and the second through groove are meshed with each other; the two ends of each horizontal beam are lug portions of the upper base and the lower base, the hydraulic machine connecting frame is installed on the intersection portion of the two horizontal beams, and the hydraulic mechanism is installed on the hydraulic machine connecting frame. The lower base and the upper top base are of a split structure and have the advantages of being small in machining difficulty, short in machining period, few in waste and capable of effectively reducing cost.

Description

Technical Field

[0001] The utility model belongs to the field of superhard material synthesis equipment, in particular to a hinged six-sided top press. Background Art

[0002] The large-cavity multi-anvil type ultra-high pressure device is a new type of equipment for synthesizing superhard materials such as diamond and cubic boron nitride. Its frame structure is a gantry structure, consisting of a lateral support device, an upper top seat and a lower base. The three are fixedly connected by a pin shaft, which solves the bottleneck problem of the small working window of the large-cylinder hinged six-sided top press, and at the same time realizes the forging and pressing manufacturing of the mechanical structure, effectively improving the strength of the mechanical structure. Figure 7 The existing upper top seat and lower base are both integral structures, with thick plates and large volumes. The production of the top seat and base often requires large-tonnage forging equipment, and is prone to defects such as incomplete forging, which poses a risk of breakage and high production costs. Secondly, the hydraulic pressure device of the equipment is embedded in the upper top seat and the lower base, and inner holes need to be processed on the upper top seat and the lower base, which to a certain extent destroys the strength of the parts and increases the difficulty of processing. Utility Model Content

[0003] The utility model aims to provide a hinged six-sided top press which has a reasonable structure and is easy to manufacture.

[0004] The technical solution to achieve the above-mentioned purpose includes the following contents.

[0005] A hinged six-sided top press comprises an upper top seat, a lower base and four side beams at the front, rear, left and right sides. The upper and lower ends of the four side beams are respectively connected to four ears around the upper top seat and the lower base through super bolts. Hydraulic mechanisms are respectively installed on the inner sides of the four side beams, the bottom of the upper top seat and the top of the lower base. The upper top seat and the lower base both comprise a cross beam and a hydraulic press connection frame. The cross beam is composed of two horizontal beams stacked up and down and perpendicular to each other. The two horizontal beams have the same thickness. A first through groove is provided on the bottom surface of the middle part of the upper horizontal beam, and the width of the first through groove is adapted to the width of the lower horizontal beam. A second through groove is provided on the top surface of the middle part of the lower horizontal beam, and the width of the second through groove is adapted to the width of the upper horizontal beam. The sum of the depths of the first and second through grooves is equal to the thickness of the horizontal beam. The first and second through grooves are engaged with each other. The two end heads of the horizontal beam are ears of the upper and lower bases. The hydraulic press connection frame is installed at the intersection of the two horizontal beams, and the hydraulic mechanism is installed on the hydraulic press connection frame.

[0006] Furthermore, the depth of the first through-slot of the upper seat is greater than the depth of the second through-slot, and the depth of the first through-slot of the lower seat is less than the depth of the second through-slot.

[0007] Furthermore, the cross beam is formed by overlapping four long strips of plate in the horizontal direction.

[0008] Furthermore, the side beam is formed by overlapping three long strips of plate in the horizontal direction.

[0009] Furthermore, the long strip plate is Krupp high-strength steel plate.

[0010] The lower base and upper top body of the utility model are composed of two horizontal beams intersecting in a cross, and the two horizontal beams are fixed by the through slots opened in the overlapping part. This split structure is easy to process. Compared with the existing technology, it does not need to use large-scale forging equipment, and only needs to fine-process the through slots, ear holes and ear pieces on the processing center equipment. Compared with the integral lower base and upper top seat, the processing difficulty is less, the processing cycle is shorter, the waste is less, and the cost is effectively reduced. Further optimization is that the horizontal beam is formed by overlapping plates, and the plates only need to be cut by water cutting to reach the rough size, which can further simplify the manufacturing method of the horizontal beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of a hinged six-sided top press machine of an embodiment;

[0012] Figure 2 A schematic diagram of the structure of the lower base cross beam of the embodiment;

[0013] Figure 3 A schematic diagram of the shape of the Krupp high-strength steel plate constituting the upper horizontal beam of the lower base in the embodiment;

[0014] Figure 4 A schematic diagram of the shape of the Krupp high-strength steel plate constituting the lower horizontal beam of the lower base in the embodiment;

[0015] Figure 5 The equivalent stress cloud diagram of the lower base cross beam of the embodiment;

[0016] Figure 6 The equivalent stress cloud diagram of the cross beam of the upper top seat of the embodiment;

[0017] Figure 7 It is a schematic diagram of the structure of a hinged six-sided top press in the prior art.

[0018] In the figure, 1. upper top seat; 1-1. hydraulic press connection frame; 2. lower base; 3. side beam; 4. upper horizontal beam; 5. lower horizontal beam; 6. Krupp high-strength steel plate; 7. super bolt. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the embodiments.

[0020] See also Figures 1 to 6A hinged six-sided top press comprises an upper top seat 1, a lower base 2 and four side beams 3 at the front, rear, left and right sides. The upper and lower ends of the four side beams 3 are respectively connected to the four ears around the upper top seat 1 and the lower base 2 through super bolts 7. Hydraulic mechanisms are respectively installed on the inner sides of the four side beams 3, the bottom of the upper top seat 1 and the top of the lower base 2. The upper top seat 1 and the lower base 2 both comprise a cross beam and a hydraulic press connection frame 1-1. The cross beam is composed of two horizontal beams stacked up and down and perpendicular to each other. The horizontal beam is formed by stacking four Krupp high-strength steel plates 6 in the horizontal direction. The thickness of the horizontal beams is 225 mm and the width is 384 mm. A first through groove is provided on the bottom surface of the middle part of the upper horizontal beam 4, and a second through groove is provided on the top surface of the middle part of the lower horizontal beam 5. The widths of the first and second through grooves are both 384 mm to match the width of the horizontal beam. The sum of the depths of the first and second through grooves is 225 mm m, the first and second through grooves are engaged with each other to fix the upper and lower horizontal beams. Through finite element analysis, it is known that the stress of the lower horizontal beam 5 of the upper top seat 1 is greater than the stress of the upper horizontal beam 4, and the stress of the upper horizontal beam of the lower base 2 is greater than the stress of the lower horizontal beam, that is, whether it is the upper top seat 1 or the lower base 2, the stress of the inner horizontal beam is greater than the stress of the outer horizontal beam. Accordingly, in this embodiment, the through groove depth of the inner horizontal beam of the upper top seat 1 and the lower base 2 is 95mm, and the through groove depth of the outer horizontal beam is 130mm. The two end heads of the four horizontal beams are the ears of the upper top seat 1 and the lower base 2. The hydraulic press connecting frame 1-1 is installed at the intersection of the two horizontal beams, and the hydraulic mechanism is installed on the hydraulic press connecting frame 1-1. The hydraulic press connecting frame 1-1 also has a reinforcement effect on the cross beam. In this embodiment, the four side beams 3 are all composed of three Krupp high-strength steel plates 6 stacked in the horizontal direction.

[0021] The hinged six-sided top press of this embodiment has been analyzed by finite element analysis. Figure 5 and Figure 6 , the maximum concentrated stress of the equipment is 844.55 MPa under the operating pressure of 60 MPa. The yield limit of the 95 mm thick Krupp high-strength steel plate 6 used in this embodiment is 1300 MPa, which is 1.54 times the maximum stress and fully meets the use requirements.

[0022] The hinged six-sided top press of this embodiment adopts a split upper top seat 1 and lower base 2 structure. Both the upper top seat 1 and the lower base 2 can be formed by Krupp high-strength steel plate 6 by water cutting to reach the rough size. Only the through groove, ear hole and ear piece size need to be fine-machined on the processing center equipment. Compared with the integral lower base 2 and upper top seat 1, the processing difficulty is less, the processing cycle is shorter, the waste is less, and the cost is effectively reduced. Combined with finite element analysis, the six-sided top press of this structure can fully meet the use requirements.

Claims

1. A hinged six-sided top press, comprising an upper top seat, a lower base and four side beams at the front, rear, left and right sides, wherein the upper and lower ends of the four side beams are connected to four ears at the periphery of the upper top seat and the lower base by super bolts, and hydraulic mechanisms are installed on the inner sides of the four side beams, the bottom of the upper top seat and the top of the lower base, respectively, characterized in that: The upper top seat and the lower base seat both include a cross beam and a hydraulic press connection frame. The cross beam is composed of two horizontal beams stacked up and down and perpendicular to each other. The two horizontal beams have the same thickness. A first through groove is provided on the bottom surface in the middle of the upper horizontal beam. The width of the first through groove is adapted to the width of the lower horizontal beam. A second through groove is provided on the top surface in the middle of the lower horizontal beam. The width of the second through groove is adapted to the width of the upper horizontal beam. The sum of the depths of the first and second through grooves is equal to the thickness of the horizontal beam. The first and second through grooves are engaged with each other. The two end heads of the horizontal beam are ears of the upper and lower bases. The hydraulic press connection frame is installed at the intersection of the two horizontal beams, and the hydraulic mechanism is installed on the hydraulic press connection frame.

2. The hinged six-sided top press according to claim 1, characterized in that: The depth of the first through groove of the upper top seat is greater than the depth of the second through groove, and the depth of the first through groove of the lower base seat is less than the depth of the second through groove.

3. The hinged six-sided top press according to claim 1, characterized in that: The cross beam is formed by overlapping four long strips of plate in the horizontal direction.

4. The hinged six-sided top press according to claim 1, characterized in that: The side beam is formed by stacking three long strips of plate materials in a horizontal direction.

5. The hinged six-sided top press according to claim 3 or 4, characterized in that: The long strip plate is Krupp high-strength steel plate.

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