WO2016000524A1

WO2016000524A1 - Multidirectional-die composite extrusion hydraulic press

Info

Publication number: WO2016000524A1
Application number: PCT/CN2015/081591
Authority: WO
Inventors: 张利; 郭玉玺; 潘克迈克尔; 赫曼乌利奇
Original assignee: 南京迪威尔高端制造股份有限公司; 威普克潘克有限公司
Priority date: 2014-06-30
Filing date: 2015-06-16
Publication date: 2016-01-07
Also published as: CN104129093A; CN104129093B

Abstract

A multidirectional-die composite extrusion hydraulic press adopts a combined-type bidirectional pre-stress bearing rack and a combined-type double-X-type composite guide frame. The combined-type bearing rack comprises an upper horizontal beam (6), a lower horizontal beam (1) and two vertical upright beams (2; 4). A vertical working cylinder is provided in the upper horizontal beam (6) and the lower horizontal beam (1). Each equal-strength vertical upright beam (2; 4) comprises two equal-strength beams which are transversely connected through a sleeve, used for mounting a horizontal working cylinder and allowed to bear the working load in the horizontal direction. The combined-type guide frame comprises two guide bodies (51, 52). Guide sides of the guide bodies have protruding portions. First guide faces are symmetrically arranged on two sides of the upper portions of the protruding portions, second guide faces are symmetrically arranged on two sides of the lower portions of the protruding portions, and extending lines of the first guide faces and the second guide faces all pass through the center of the combined-type bearing rack. The multidirectional-die composite extrusion hydraulic press has safe and reliable bearing capacity and running accuracy, the number of control shafts of the working cylinders reaches seven, and production process has various applications.

Description

Multi-directional composite extrusion hydraulic press

Technical field

The invention relates to a multi-directional composite extrusion hydraulic press, in particular to a multi-directional composite extrusion hydraulic press with a bidirectional prestressed load-bearing frame.

Background technique

The load-bearing frame is the most important part of the hydraulic machine body, so the load-bearing frame must have sufficient strength and rigidity to meet the performance requirements and economy of different manufacturing processes. However, in the field of hydraulic machine technology, the structural design of the existing hydraulic machine's load-bearing frame still has no major breakthrough, the shape is the same, the function is single, the performance is low, and the application range of the process is limited. For example, the vertical load-bearing frame of the traditional “three-beam four-column” hydraulic press can only withstand the vertical working load, and is used for vertical forming processes such as forging, extrusion, stamping and pressing of materials depending on different applications; The horizontal load-bearing frame of the traditional "three-beam four-column" hydraulic press can only withstand the horizontal working load, mainly used for the horizontal extrusion process of materials; the traditional multi-directional forging hydraulic press's load-bearing frame is also simple The ground frame is assembled with a horizontal frame for multi-directional die forging process, but since the two frames are independent, the vertical and horizontal working load forces are mutually external, and the force system cannot be combined. Balanced in the rack, it is easy to cause horizontal imbalance and frequent damage of components; traditional integral stack and integral frame load-bearing frame, although its vertical and horizontal working load force becomes internal force, but two machines are assembled together Like the frame, it is limited by the structure and can withstand a small horizontal working load. Therefore, the load-bearing frame of the above-mentioned hydraulic machine cannot meet the requirements of one-time precision extrusion forming of complex products of multi-directional, special-shaped and hollow type, and requires many process steps, low material utilization rate, large cutting amount, and metal flow line. It is cut off, resulting in stress concentration, low production efficiency and high energy consumption.

The operation of the movable beam of the traditional hydraulic machine is guided by the guide sliding surface provided by the column. The so-called "X" guiding surface is in the same plane with the same angle, and the guiding length of the movable beam is similar to its stroke. Under the working load, due to the lateral bending deformation of the column, it is easy to deflect the movable beam whose original guiding length is short, and the guiding precision is not guaranteed.

The existing multi-directional forging hydraulic press has a cylinder shaft number of 3-5 axes, and the horizontal working cylinders are all single-axis, and the capacity is low, and the formed product has a small weight, and only a single horizontal split molding can be performed, and the limitation is limited. The application range of multi-directional die forging.

Therefore, there is a need for a new multi-directional composite extrusion hydraulic press to solve the above problems.

Summary of the invention

OBJECT OF THE INVENTION: The present invention is directed to the defects of the multi-directional forging hydraulic press working cylinder in the prior art, and provides a work. The cylinder has a 7-axis multi-directional composite extrusion hydraulic press.

Technical solutions:

Multi-directional composite extrusion hydraulic press, comprising combined bidirectional prestressed load-bearing frame, combined double "X" type composite guide frame, upper vertical main working cylinder, upper vertical perforated cylinder, left horizontal main working cylinder, right horizontal Main working cylinder, left horizontal perforated cylinder, right horizontal perforated cylinder and lower vertical perforated or ejected cylinder,

The combined bidirectional prestressed load-bearing frame comprises two vertical pillar beams of the same size and bilateral symmetry, horizontal upper beams and horizontal lower beams respectively supported at the top and bottom of the vertical pillar beams, and vertical prestressed rods The apparatus, the vertical pillar beam comprises two equal-strength beams and sleeves, and the two equal-strength beams are laterally coupled by the sleeve, the equal-strength beam has a rectangular cross section, the inner side is a plane, and the outer side has a a protruding portion; a cross-sectional area of the portion of the equal-strength beam above the protruding portion gradually increases from the top to the bottom, and a cross-sectional area of the portion of the equal-intensity beam below the protruding portion gradually increases from the top to the bottom Reducing that the sleeve and its axis are horizontally located between two equal-strength beams, and the horizontal upper beam, the vertical column beam and the horizontal lower beam are pre-tightened by the vertical pre-stressed rod device and are subjected to Vertical working load;

The combined double "X" type composite guide frame comprises two guiding bodies and movable beams having the same size and symmetrical structure, the guiding side of the guiding body has a convex portion, and the upper sides of the protruding portion are symmetric on both sides a first guiding surface is disposed, and a second guiding surface is symmetrically disposed on both sides of the lower portion of the protruding portion, and an extension line of the first guiding surface and the second guiding surface passes through a center of the combined bidirectional prestressing bearing frame The upper ends of the two guiding bodies are fixedly coupled by a prestressed tie rod, and the lower portions of the two guiding bodies are fixedly coupled with the movable beam;

The upper portion of the vertical pillar beam is symmetrically disposed with a guiding surface corresponding to the first guiding surface, and the horizontal upper beam is disposed with a guiding surface corresponding to the second guiding surface and located directly above the vertical pillar beam;

The upper vertical master cylinder is disposed in the horizontal upper beam, the left horizontal master cylinder is disposed in a sleeve of one of the vertical pillar beams, and the right horizontal master cylinder is disposed in another of the vertical In the sleeve of the column beam, the lower vertical perforating or ejection cylinder is disposed in the horizontal lower beam, the upper vertical perforating cylinder is disposed in the upper vertical main working cylinder, and the left horizontal perforating cylinder is disposed in In the left horizontal main working cylinder, the right horizontal perforating cylinder is disposed in the right horizontal main working cylinder.

Further, the horizontal upper beam and the horizontal lower beam are convex equal-strength beams, and the protruding body of the horizontal upper beam is opposite to the protruding body of the horizontal lower beam, and two of the horizontal upper beams are The shoulder planes respectively meet the top ends of the two vertical pillar beams, and the two shoulder planes of the horizontal lower beam respectively meet the bottom ends of the two vertical pillar beams, the horizontal upper beam The two sides of the protruding body are respectively in contact with the top inner side surfaces of the two vertical pillar beams, and the two sides of the protruding body of the horizontal lower beam are respectively in contact with the bottom inner side surfaces of the two vertical pillar beams.

Further, the bottom horizontal prestressed rod device and the top horizontal prestressed rod device, two The bottom of the vertical pillar beam and the protrusion of the horizontal lower beam are pre-tightened by the bottom horizontal prestressed rod device, and the tops of the two vertical pillar beams and the protrusion of the horizontal upper beam pass The top horizontal prestressed drawbar device is pre-tensioned and subjected to horizontal working loads.

Further, a top end of the vertical pillar beam is keyed to a shoulder plane of the horizontal upper beam, and a bottom end of the vertical pillar beam is keyed to a shoulder plane of the horizontal lower beam.

Further, the vertical prestressed rod device comprises a plurality of thin rods having a diameter of 160 to 280 mm. The invention abandons the traditional design method using a single thick tie rod, not only for the needs of a compact structure design, but the performance of a plurality of thin tie rods is much greater than that of using only one thick tie rod, and a small hydraulic preload can be used. Cylinders, each of which is pre-tensioned.

Further, the bottom horizontal prestressed rod device and/or the top horizontal prestressed rod device each include a plurality of thin rods having a diameter of 160 to 280 mm. The invention abandons the traditional design method using a single thick tie rod, not only for the needs of a compact structure design, but the performance of a plurality of thin tie rods is much greater than that of using only one thick tie rod, and a small hydraulic preload can be used. Cylinders, each of which is pre-tensioned.

Further, a guide plate is disposed on the guide surface corresponding to the first guiding surface and the second guiding surface.

Further, an angle between two of the first guiding surfaces in the same guiding body is 60°-100°, and an angle between two of the second guiding surfaces in the same guiding body is 60°-100°, the angle between the two first guiding surfaces in the same guiding body is different from the angle between the two second guiding surfaces.

Further, the lower portions of the two guiding bodies are fixedly coupled to the movable beam by a cross key and a screw.

Advantageous Effects: The multi-directional composite extrusion hydraulic press of the present invention adopts a novel combined bidirectional prestressed load-bearing frame and a combined double "X"-type composite guide frame. The combined two-way prestressed load-bearing frame includes a horizontal upper beam, a horizontal lower beam, and two vertical column beams. Vertical working cylinders are arranged in the horizontal upper beam and the horizontal lower beam. Each equal-strength vertical column beam includes two equal-strength beams, and the two equal-strength beams are laterally coupled by a sleeve to install a horizontal working cylinder and allow to withstand horizontal working loads. The combined double "X" type composite guide frame comprises two sets of guiding bodies, the guiding side of the guiding body has a convex part, the upper part of the convex part is symmetrically arranged with the first guiding surface, and the lower part of the lower side is symmetrically arranged with the second guiding The extension lines of the first guiding surface and the second guiding surface pass through the center of the combined bidirectional prestressing bearing frame. The combined two-way prestressed load-bearing frame and the double "X"-type composite guide frame make the multi-directional composite extrusion hydraulic press of the invention have safe and reliable bearing capacity and running precision, and the number of control axes of the working cylinder reaches 7 axes. In order to obtain a wider range of production process uses.

DRAWINGS

Figure 1 is a plan view of the combined carrier frame;

Figure 2 is a cross-sectional view taken along line A-A of the combined carrier frame;

Figure 3 is a side view of the vertical column beam;

Figure 4 is a plan view of the vertical column beam;

Figure 5 is a plan view of the horizontal upper beam;

Figure 6 is a plan view of the horizontal lower beam;

Figure 7 is a side view of the guiding system;

Figure 8 is a plan view of the guide body;

Figure 9 is a schematic view showing the structure of a multi-directional composite extrusion hydraulic press.

detailed description

Referring to FIG. 1 and FIG. 2, the multi-directional composite extrusion hydraulic press of the present invention comprises a combined bidirectional prestressed load-bearing frame, a combined double "X" type composite guiding system, an upper vertical main working cylinder 9, and an upper Vertical perforated cylinder 10, left horizontal main working cylinder 121, right horizontal main working cylinder 122, left horizontal perforated cylinder 131, right horizontal perforated cylinder 132 and lower vertical perforating or ejection cylinder 16.

Combined bidirectional prestressed load-bearing frame, including horizontal lower beam 1, two vertical column beams 2; 4, horizontal upper beam 6, vertical prestressed rod device 71, bottom horizontal prestressed rod device 72, and top horizontal prestressed rod Device 73.

The combined double "X" type composite guiding system comprises a movable beam 3 and two guiding bodies 51 having the same size and structure; 52.

1) The beam of the existing hydraulic machine is generally a contour beam, that is, the height dimension of any vertical section of the beam is equal. The bearing surface of the upper beam, that is, the plane for supporting the column and mounting the working cylinder, is in the same plane, and the bearing surface of the lower beam, that is, the plane for supporting the column and mounting the working table, is also in the same plane. Some non-equal height upper beam non-bearing surfaces are upwardly convex, and non-equal height lower beam non-bearing surfaces are convex downward. These beams have a single function and are equal in size in the height direction, but the stress distribution of the beam is very uneven and the potential of the material is not fully utilized.

Referring to FIG. 5 and FIG. 6, the beam of the hydraulic machine of the present invention is a convex equal-strength beam, which is different from the structure of the beam of any existing hydraulic machine. The "convex" type horizontal upper beam 6 and the "convex" type horizontal lower beam 1 are exactly opposite to the conventional concept. The upper dimensions of the beams in the height direction are not equal, and the bearing planes of the beams are not in the same plane, but the stress distribution of the beams is balanced. The potential of the material is fully utilized; the bearing surface of the horizontal upper beam 6 mounting cylinder is convex downward, so that the bearing surface of the horizontal lower beam 1 mounting table protrudes upward. The distance between the two horizontal planes of the horizontal upper beam 6 and the convex body of the horizontal lower beam 1 constitutes the vertical opening H of the frame window, and the two vertical faces of the convex body determine the horizontal inner clearance of the frame window. W, the material between the two vertical faces plays the role of the upper and lower horizontal columns.

The horizontal lower beam 1 of the present invention is an upwardly convex "convex" type equal-strength beam structure, the upper plane of the convex body is used for mounting the workbench, and the two shoulder planes are used for supporting two vertical column beams 2; The two planes are not in the same plane. The vertical faces on both sides of the protrusion are two vertical column beams 2; the inner side of the bottom of the 4 provides horizontal "X" axis positioning Benchmark, and the protrusion is used as the lower horizontal column, and the horizontal horizontal prestressing rod device 72 is used to pre-tighten the bottom of the two vertical column beams 2; 4 and the convex body of the horizontal lower beam 1 into a horizontal prestress. Function; two shoulder planes are designed with two sets of rectangular keyways and inlaid with positioning keys, which can provide the front and rear horizontal "Y" axis positioning reference for the bottom of the two vertical column beams 2; 4; the two shoulder planes are The bottoms of the two vertical column beams 2; 4 provide a vertical "Z" axis positioning reference and are subjected to a vertical prestressed tie rod device 71 to pretension the two vertical column beams 2; 4 with the horizontal upper beam 6 and the horizontal lower beam 1 The vertical pre-stress action is integrated; the lower working cylinder can be installed in the horizontal lower beam 1 according to the ejection force, the lower punching force and the hydraulic cushion force required for different process objects.

The horizontal upper beam 6 is an inverted "convex" beam structure protruding downward, the lower plane of the inverted convex body is used for installing the main working cylinder, and the two inverted shoulder planes are for supporting two vertical column beams 2; These two planes are not in the same plane. The two vertical faces of the inverted convex body are two vertical column beams 2; the inner side of the top of the 4 provides the left and right horizontal "X" axis positioning reference, and the inverted convex body is used as the upper horizontal column to withstand the horizontal horizontal prestressing The tie rod device 73 pre-tightens the top of the two vertical pillar beams 2; 4 and the inverted convex body of the horizontal upper beam 6 into a horizontal pre-stress; two sets of rectangular keyways and inlays are designed on the two inverted shoulder planes There are positioning keys to provide the front and rear horizontal "Y" axis positioning reference for the top of the two vertical column beams 2; 4; the two inverted shoulder planes are two vertical column beams 2; the top of the 4 provides the vertical direction" Z" axis positioning reference, and subjected to the vertical prestressed rod device 71 to pre-stress the two vertical column beams 2; 4 with the horizontal upper beam 6 and the horizontal lower beam 1 in a vertical direction; The main working cylinder is installed on the lower plane. According to different vertical nominal force and process objects, the number of cylinders is 1 to 6, and the arrangement of the cylinders can be 1 row, 2 or 3 rows, or double row 2 1, 4, 6, or 3, 3, and 5.

2) The columns of the existing hydraulic press are mostly independent of four solid or hollow circular or rectangular structures, or a multi-layered plate structure, or a frame-shaped box structure. Their common feature is that they are only used as a column function to support compressive stress (for prestressed structures) or tensile stress between upper and lower beams (for vertical hydraulic machines) or front and rear beams (for horizontal hydraulic machines) (for non-pre- Stress structure), can not withstand horizontal or lateral working loads. Some integral multi-layer plate type or integral plate-frame hydraulic machine, although it is allowed to install a flange-supported working cylinder in the horizontal direction of the column portion, due to the constraint of the type structure, the horizontal working load can be withheld only 1/5 of the vertical direction.

Referring to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the special vertical column beam 2; 4 of the present invention is different from the structure of the column of any of the existing hydraulic machines. Two vertical column beams 2; 4, which are asymmetric arch structures from the front, are asymmetric "H" structures from the side. Specifically, the vertical pillar beam 2; 4 comprises two equal-strength beams and sleeves, and the two equal-strength beams are laterally coupled by a sleeve. The equal-strength beam has a rectangular cross section, a plane on the inner side and a protrusion on the outer side. The cross-sectional area of the portion of the equal-strength beam above the protrusion gradually increases from the top to the bottom, and the cross-sectional area of the portion of the equal-strength beam below the protrusion gradually decreases from the top to the bottom, and the sleeve and its axis are horizontal. The orientation is between two equal strength beams. As a vertical column function, it is a hollow rectangular cross section at the full height; the four bottom ends and four top ends of the two vertical column beams 2; 4 are supported on the two shoulder planes and levels of the horizontal lower beam 1 Between the two shoulder planes of the beam 6, it is pre-tensioned with the horizontal upper beam 6 and the horizontal lower beam 1 by the vertical prestressed rod device 71, subjected to the vertical prestressing action, and the angle under the working load. The horizontal force of the movable beam reaction force under bending moment and eccentric load; the bottom end and the top horizontal surface of the two vertical column beams 2; 4 are designed with two sets of rectangular keyways and inlaid with positioning keys, which will be horizontally horizontally beamed 6 And the horizontal lower beam 1 and the vertical column beam 2; 4 are firmly embedded together, and serve as a "Y" axis positioning reference for the upper and lower horizontal beams 6 and 1 in the front and rear horizontal directions.

As a vertical beam function, two vertical column beams 2; 4 are hollow variable section arch beam structures, with four top and four bottom inner sides of two vertical column beams and horizontal upper and lower beams 6 and 1 as horizontal columns, respectively. The two vertical faces of the projection are fitted together, and the ends and bottoms of the vertical column beams are pre-tightened with the bosses of the horizontal upper and lower beams 6 and 1 by the bottom horizontal prestressed

tie rod devices

72 and 73, respectively; The middle part between the vertical pillar beams is laterally connected by a circular or rectangular cylinder 21 for mounting a horizontal working cylinder supported by the bottom of the cylinder and is allowed to withstand a large horizontal working load; according to different horizontal nominal forces and For the process object, the number of cylinders can be a single-acting hydraulic cylinder, or a double-acting double-acting hydraulic cylinder, or two or more hydraulic cylinders.

3) Hydraulic press in the form of traditional tension column, integral multi-layer plate or integral plate-frame hydraulic machine, their common feature is that the frame is non-prestressed structure, which is subjected to one-way large-value alternating stress during operation and low fatigue resistance. . Some hydraulic presses use a prestressed structure, but most of them are vertical vertical hydraulic machines, or horizontally oriented horizontal hydraulic machines with one-way prestressed structures; some have a vertical prestressed frame with one lying The prestressed frames are combined to form a multi-directional forging hydraulic press, but the frame and the mold are frequently damaged due to the fact that the force system cannot be closed. Moreover, subject to this type of structure, the horizontal working load that can be withstood is only 1/3 of the vertical direction.

Referring to Figures 1 and 2, the vertical and horizontal bidirectional full prestressing system of the present invention is different from the prestressing mode of any of the existing hydraulic machines. The vertical and horizontal bidirectional full prestressing system, the vertical prestressed rod device 71, the bottom horizontal prestressed rod device 72 and the top horizontal prestressed rod device 73 have a diameter of 160 to 280 mm, according to the design preload and The pre-tightening method generates pre-tensioning tension on the entire length of the tie rod by pre-tightening the nut, and applies pre-tightening pressure to the horizontal upper beam 6, the horizontal lower beam 1 and the two vertical column beams 2; 4, thereby horizontally the upper beam 6 and The horizontal lower beam 1 and the two vertical column beams 2; 4 are tightly consolidated in a vertical direction and a horizontal direction, respectively, to form a vertical and horizontal bidirectional full prestressed load-bearing frame.

According to the bearing capacity requirements of the vertical and horizontal directions of the hydraulic machine, the number and distribution of the tie rods in the vertical prestressed rod device 71, the bottom horizontal prestressed rod device 72 and the top horizontal prestressed rod device 73 are determined, and the tie rod nut is determined according to the stress level of each beam. Under the thickness of the pad.

Prestressed design Design, adjust and set the prestress of the tie rod according to the maximum working load force and the maximum allowable eccentricity. The pre-tightening coefficient is 1.5, that is, the pre-tightening force is 1.5 times of the working load; the cross-sectional dimensions of the horizontal upper beam 6 and the horizontal lower beam 1 and the two vertical column beams 2; 4 are the same, and the height direction of the beam is compressed. The deformation is not negligible, and the calculated size of the compressed member should include the corresponding height dimension of the horizontal upper beam 6, the horizontal lower beam 1 and the two vertical column beams 2;

The force of the entire frame, whether it is vertical or horizontal, is an internal force balance system, and the load force is not transmitted to the foundation, ensuring the safety and reliability of the two-way bearing of the rack.

The invention abandons the traditional design method using a single thick tie rod, not only for the needs of compact structural design, but the superiority of multiple thin draw rods is much greater than that of using only one thick draw rod: a smaller hydraulic preload can be used Tightening cylinders, respectively pre-tightening each tie rod; according to the cross-sectional shape of the hollow column, the multiple tie rods are symmetrically and evenly arranged, and the force is balanced; the machining error of the root of the pull rod thread is small, and the bending stress is less affected; due to the small cross-sectional area, the material structure The heat treatment performance is uniform, and the mechanical properties of the material can be fully utilized; the manufacturing and installation are convenient.

4) The operation of the movable beam of the traditional hydraulic machine is guided by the guide sliding surface provided by the column. The so-called "X" guiding surface is in the same plane of the same angle, and the guiding length of the movable beam is similar to its stroke. Under the working load, due to the lateral bending deformation of the column, it is easy to deflect the movable beam whose original guiding length is short, and the guiding precision is not guaranteed.

Referring to Figures 7 and 8, the combined double "X" type composite guiding system of the present invention is different from the guiding mode of any of the existing hydraulic machines, and includes two guiding bodies 51 of the same size and symmetrical structure. ;52.

The specific structure of the guiding body is: the guiding body 51; 52 has a convex portion on the guiding side, two first guiding surfaces are symmetrically disposed on both sides of the upper portion of the protruding portion, and two sides are symmetrically disposed on the lower sides of the protruding portion The two guiding surfaces, the first guiding surface and the second guiding surface extending the line through the center of the combined bidirectional prestressed bearing frame, the two guiding bodies 51; 52 upper end is fixedly coupled by a prestressed tie rod, two guiding bodies 51; The lower part of 52 is fixedly connected to the movable beam 3 by a cross key and a screw;

The two sets of upper horizontal tie rod devices 81 comprise high-strength tie rods, which are integrally pre-stressed by two pre-stresses of the two upper guide beams 51; 52; the lower portions of the two guide bodies 51; 52 are passed through the horizontal screw 82 and the cross key The vertical guide body is laterally consolidated with the movable cross member 3.

The upper beam guide plate of the guide body 51; 52 is guided by the wear-resistant guide plate at the non-deformation zone I mounted on the horizontal upper beam 6, and the middle and lower vertical guide plates are supported by the micro-deformation zone mounted on the left and right vertical column beams 4 and 2. The wear-resistant guide slide is guided at II; the extension lines of the upper and lower guide faces pass through the center of the support frame, and the angle α between the two first guide faces of the same guide body 51; 52 is 60°-100°, At the same time, the angle β between the two second guiding surfaces of the same guiding body 51; 52 is 60°-100°, the angle between the two first guiding surfaces of the same guiding body 51; 52 and the two second The angle between the guide faces is different. It forms a double "X" type composite guiding system; the length of the guiding body is three times its stroke, which provides a strong, rigid and low contact stress plane guide for the movable beam.

The above-mentioned combined bidirectional prestressed load-bearing frame adopts the computer three-dimensional finite element analysis software contact problem analysis method to optimize the overall structure of the frame, so that the deformation and stress of the frame are accurately solved, and the working process is predicted. The stress state of the structure and its deformation trend optimize the structure of the force frame, determine its geometrical dimensions under the optimal strength and stiffness, and make the material properly distributed to give full play to the potential of the materials used.

Theoretical analysis shows that the frame structure has high overall rigidity, fatigue resistance, load carrying capacity and safety reliability. After the frame is pre-tightened, there is no seam, no need to repeatedly tighten the outer nut, and the tie rod will never wear. During operation, the column is subjected to compressive and bending stresses, and the tie rod is subjected to tensile stress. The maximum and minimum tensile stress changes are only 15% of the maximum load stress. There is no column breakage accident during the life cycle of the whole machine, and the service life of each component is prolonged, which greatly reduces equipment maintenance cost and life cycle cost.

5) The existing multi-directional forging hydraulic press has a cylinder shaft of 3-5 axes, and the horizontal working cylinders are all single-axis, and the capacity is low. The formed product has a small weight and can only be subjected to a single horizontal split molding. , limits the range of process applications for multi-directional die forging.

Referring to FIG. 9, the multi-directional composite extrusion hydraulic press of the present invention is different from any of the conventional multi-directional forging hydraulic presses. The multi-directional mold composite extrusion cylinder has a number of shafts of 7 axes, a combined two-way prestressed load-bearing frame and a combined double "X"-type composite guide frame as carriers for installing hydraulic cylinders, work tables, molds, and the like, and Subject to full working load, it forms the body part of a multi-directional composite precision extrusion hydraulic press.

The upper vertical working cylinder 9 and the mold 11, the upper vertical perforating cylinder 10, the left horizontal main working cylinder 121, the left horizontal perforating cylinder 131, the right horizontal main working cylinder 122 and the mold 14, the right horizontal perforating cylinder 132, the lower vertical perforating cylinder or The ejector cylinders 16 are respectively driven as independent CNC hydraulic cylinders, which are respectively driven by hydraulic numerical control devices, and constitute a hydraulic numerical control closed-loop servo control and synchronous control system; wherein the upper vertical main working cylinder 9 is disposed in the horizontal upper cross beam 6, left horizontal The main working cylinder 121 is disposed in a sleeve of a vertical column beam 2; 4, the right horizontal main working cylinder 122 is disposed in the sleeve of the other vertical column beam 2; 4, and the lower vertical perforating or ejection cylinder 16 is disposed at the level In the lower cross member 1, the upper vertical perforated cylinder 10 is disposed in the upper vertical main working cylinder 9, the left horizontal perforated cylinder 131 is disposed in the left horizontal main working cylinder 121, and the right horizontal perforated cylinder 132 is disposed in the right horizontal main working cylinder 122. Based on the computer hydraulic CNC multi-axis linkage program loading, the logic action is controlled by the PLC system. The speed, displacement and pressure of each cylinder axis are programmed by HNC. The vertical loading of the spindle, the loading of the left horizontal axis and the loading of the right horizontal axis are performed. In the order, more than five types of loading modes can be combined, and two types of split mode, vertical splitting and horizontal splitting, can be completed according to the conditions of the process parting surface.

Combined with other logic-controlled cylinders, it has multi-directional loading, upper center punching, lower center punching, ejection, stretching hydraulic pad and other stepping and continuous feeding functions; difficult to shape products with complex cavity structure 15 Multi-directional die extrusion, die forging, isothermal die forging, equal pressure forging, equal forging forging, precision forging, superplastic forming, and other metal plastic flexible composite near net forming processes.

6) An embodiment of the present invention is to develop a seven-axis CNC multi-directional mode compounding compound with a total deformation capacity of 350 MN. The hydraulic performance of the dense extrusion forming hydraulic machine is shown in Table 1.

Table 1

轴axis	工作缸Working cylinder	力(MN)Force (MN)	液体压力(MPa)Liquid pressure (MPa)	速度(mm/s)Speed (mm/s)	行程(mm)Stroke (mm)
轴axis	工作缸Working cylinder	力(MN)Force (MN)	液体压力(MPa)Liquid pressure (MPa)	速度(mm/s)Speed (mm/s)	行程(mm)Stroke (mm)	11	4-上主工作缸4-up main working cylinder	130130	4242	0.5-600.5-60	20002000
22	1-上穿孔缸1-upper perforated cylinder	9090	4242	0.5-600.5-60	30003000	11	4-上主工作缸4-up main working cylinder	130130	4242	0.5-600.5-60	20002000
22	1-上穿孔缸1-upper perforated cylinder	9090	4242	0.5-600.5-60	30003000	33	1-左水平主工作缸1-left horizontal main working cylinder	130130	4242	0.5-400.5-40	10001000
44	1-左水平穿孔缸1-left horizontal perforated cylinder	5050	4242	0.5-600.5-60	700700	33	1-左水平主工作缸1-left horizontal main working cylinder	130130	4242	0.5-400.5-40	10001000
44	1-左水平穿孔缸1-left horizontal perforated cylinder	5050	4242	0.5-600.5-60	700700	55	1-右水平主工作缸1-right horizontal main working cylinder	130130	4242	0.5-400.5-40	10001000
66	1-右水平穿孔缸1-right horizontal perforated cylinder	5050	4242	0.5-600.5-60	700700	55	1-右水平主工作缸1-right horizontal main working cylinder	130130	4242	0.5-400.5-40	10001000
66	1-右水平穿孔缸1-right horizontal perforated cylinder	5050	4242	0.5-600.5-60	700700	77	1-下顶出/穿孔缸1-lower top/perforation cylinder	2020	4242	0.5-600.5-60	15001500

The strength, rigidity and guiding accuracy of the load-bearing frame enable the hydraulic press to achieve the following properties:

See Table 2 for comparison of the embodiments of the present invention with the prior art landmark indicators.

Table 2

名称name	实施例Example	美国United States	德国Germany	英国United Kingdom
名称name	实施例Example	美国United States	德国Germany	英国United Kingdom	总变形力(MN)Total deformation force (MN)	350350	155155	310310	360360
水平力(MN)Horizontal force (MN)	21302130	235/45235/45	210210	260260	总变形力(MN)Total deformation force (MN)	350350	155155	310310	360360
水平力(MN)Horizontal force (MN)	21302130	235/45235/45	210210	260260	传动方式transfer method	油泵直驱Oil pump direct drive	水泵蓄能器Pump accumulator	水泵蓄能器Pump accumulator	水泵蓄能器Pump accumulator
轴数及控制方式Number of axes and control methods	7轴伺服控制7-axis servo control	5轴开关量控制5-axis switching control	3轴开关量控制3-axis switching control	5轴开关量控制5-axis switching control	传动方式transfer method	油泵直驱Oil pump direct drive	水泵蓄能器Pump accumulator	水泵蓄能器Pump accumulator	水泵蓄能器Pump accumulator
轴数及控制方式Number of axes and control methods	7轴伺服控制7-axis servo control	5轴开关量控制5-axis switching control	3轴开关量控制3-axis switching control	5轴开关量控制5-axis switching control	生产最大锻件重量(kg)Production of the largest forging weight (kg)	40004000	20002000	30003000	30003000

Claims

A multi-directional composite extrusion hydraulic press characterized by comprising a combined bidirectional prestressed load-bearing frame, a combined double "X" type composite guide frame, an upper vertical main working cylinder (9), and an upper vertical perforated cylinder (10) ), a left horizontal main working cylinder (121), a right horizontal main working cylinder (122), a left horizontal perforating cylinder (131), a right horizontal perforating cylinder (132), and a lower vertical perforating or ejection cylinder (16),

The combined bidirectional prestressed load-bearing frame comprises two vertical pillar beams (2; 4) of the same size and symmetrical, and horizontal upper beams respectively supported at the top and bottom of the vertical pillar beams (2; 4) (6) and a horizontal lower beam (1), and a vertical prestressed rod device (71), the vertical column beam (2; 4) comprising two equal-strength beams and sleeves, two of the equal-strength beams passing through The sleeve is laterally coupled, and the equal-strength beam has a rectangular cross section, a plane on the inner side, and a protrusion on the outer side; the cross-sectional area of the portion of the equal-strength beam above the protrusion gradually increases from the top to the bottom. Large, the cross-sectional area of the portion of the equal-strength beam below the protrusion gradually decreases from top to bottom, and the sleeve and its axis are horizontally located between two equal-strength beams, at the level The beam (6), the vertical column beam (2; 4) and the horizontal lower beam (1) are pre-tightened by the vertical prestressed rod device (71);

The combined double "X" type composite guide frame comprises two guiding bodies (51; 52) and a movable beam (3) having the same size and symmetrical structure, and the guiding side of the guiding body (51; 52) has a convex side. a second guiding surface is symmetrically disposed on both sides of the upper portion of the protruding portion, and a second guiding surface is symmetrically disposed on both sides of the lower portion of the protruding portion, and the extension lines of the first guiding surface and the second guiding surface are respectively The upper ends of the two guiding bodies (51; 52) are fixedly coupled by a prestressed tie rod through the center of the combined bidirectional prestressing bearing frame, and the lower portions of the two guiding bodies (51; 52) are The movable beam (3) is fixedly connected;

The upper portion of the vertical pillar beam (2; 4) is symmetrically disposed with a guiding surface corresponding to the first guiding surface, and the horizontal upper beam (6) is provided with a guiding surface corresponding to the second guiding surface and located The vertical pillar beam (2; 4) is directly above;

The upper vertical main working cylinder (9) is disposed in the horizontal upper cross beam (6), and the left horizontal main working cylinder (121) is disposed in a sleeve of one of the vertical pillar beams (2; 4), The right horizontal main working cylinder (122) is disposed in a sleeve of the other of the vertical pillar beams (2; 4), and the lower vertical perforating or ejecting cylinder (16) is disposed at the horizontal lower beam (1) The upper vertical perforating cylinder (10) is disposed in the upper vertical main working cylinder (9), and the left horizontal perforating cylinder (131) is disposed in the left horizontal main working cylinder (121). The right horizontal perforating cylinder (132) is disposed in the right horizontal main working cylinder (122).
The multi-directional composite extrusion hydraulic press according to claim 1, wherein said horizontal upper beam (6) and said horizontal lower beam (1) are convex equal-strength beams, said horizontal upper beam (6) The convex body is disposed opposite to the convex body of the horizontal lower beam (1), and the two shoulder planes of the horizontal upper beam (6) are respectively opposite to the top ends of the two vertical pillar beams (2; 4) In connection, the two shoulder planes of the horizontal lower beam (1) are respectively separated from the two The bottom ends of the upright column beams (2; 4) are connected, and the two sides of the protrusions of the horizontal upper beam (6) are respectively in contact with the top inner sides of the two vertical column beams (2; 4), The two sides of the protruding body of the horizontal lower beam (1) are respectively in contact with the bottom inner sides of the two vertical pillar beams (2; 4).
The multi-directional composite extrusion hydraulic press according to claim 2, further comprising a bottom horizontal prestressed rod device (72) and a top horizontal prestressed rod device (73), and said two vertical column beams (2) The bottom of the 4) and the protrusion of the horizontal lower beam (1) are pre-tightened by the bottom horizontal prestressed rod device (72), the top of the two vertical column beams (2; 4) and The projections of the horizontal upper cross member (6) are pre-tightened by the top horizontal prestressed drawbar device (73).
The multi-directional composite extrusion hydraulic press according to claim 2, wherein a top end of the vertical pillar beam (2; 4) is keyed to a shoulder plane of the horizontal upper beam (6), The bottom end of the vertical pillar beam (2; 4) is keyed to the shoulder plane of the horizontal lower beam (1).
The multi-directional composite extrusion hydraulic press according to claim 1, wherein said vertical pre-stressed rod device (71) comprises a plurality of thin rods having a diameter of 160 to 280 mm.
The multi-directional composite extrusion hydraulic press according to claim 3, wherein said bottom horizontal prestressed drawbar device (72) and/or top horizontal prestressed drawbar device (73) each comprise a plurality of thin drawbars. The diameter of the thin rod is 160 to 280 mm.
The multi-directional composite extrusion hydraulic press according to claim 1, wherein a guide slide is provided on the guide surfaces corresponding to the first guide surface and the second guide surface.
The multi-directional composite extrusion hydraulic press according to claim 1, wherein an angle between two of the first guiding surfaces in the same guiding body (51; 52) is 60°-100°, An angle between two of the second guiding surfaces in the same guiding body (51; 52) is 60°-100°, and two of the first guiding surfaces in the same guiding body (51; 52) The angle between the two is different from the angle between the two second guiding faces.
The multi-directional composite extrusion hydraulic press according to claim 1, characterized in that the lower portions of the two guide bodies (51; 52) are fixedly coupled to the movable beam (3) by means of a cross key and a screw.