CN102582101B - Four-column forging hydraulic machine - Google Patents

Four-column forging hydraulic machine Download PDF

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Publication number
CN102582101B
CN102582101B CN201210038872.8A CN201210038872A CN102582101B CN 102582101 B CN102582101 B CN 102582101B CN 201210038872 A CN201210038872 A CN 201210038872A CN 102582101 B CN102582101 B CN 102582101B
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CN
China
Prior art keywords
column
guide plate
guide
flange
post
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201210038872.8A
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Chinese (zh)
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CN102582101A (en
Inventor
罗丽丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Tianduan Press Co Ltd
Original Assignee
Tianjin Tianduan Press Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Tianduan Press Co Ltd filed Critical Tianjin Tianduan Press Co Ltd
Priority to CN201210038872.8A priority Critical patent/CN102582101B/en
Publication of CN102582101A publication Critical patent/CN102582101A/en
Application granted granted Critical
Publication of CN102582101B publication Critical patent/CN102582101B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04Frames; Guides
    • B30B15/041Guides

Abstract

The invention relates to a four-column forging hydraulic machine which is composed of columns, an upper beam, a middle beam, a lower beam, a working oil cylinder and a return cylinder. A column guiding structure is arranged between the middle beam and the columns. The four-column forging hydraulic machine is characterized in that the column guiding structure comprises four groups of guiding assemblies composed of guiding plates and wedge plates, the wedge plates are pressed and fixed in the middle beam through pressing plates, supporting plates are arranged close to the upper ends of the guiding plates, adjusting pads are arranged between the supporting plates and the pressing plates, the lower end of a piston rod of the working oil cylinder is provided with a cylindrical cavity, the cylindrical cavity is internally provided with a first spherical pad and a spherical column, a supporting sleeve is sleeved outside the spherical column, a support structure is arranged at the upper part of a raised part at the lower end of the supporting sleeve, an elastic pad is arranged between the supporting structure and the raised part, and the lower end of the supporting sleeve is internally provided with a second spherical pad. According to the structure, the columns and the guiding structure are in surface contact, so that the local stress is reduced, and the traction injury of the columns is avoided. In addition, the second spherical pad, the spherical column and the first spherical pad are rotated in a matching way, therefore, the deflection of the piston rod along the axis is avoided, and the traction injury and the damage of the working oil cylinder and the piston rod are reduced.

Description

Four post hydraulic forging presses
Technical field
The present invention relates to hydraulic press, particularly a kind of four post hydraulic forging presses being suitable for unbalance loading processing operating mode.
Background technology
Four-column hydraulic press of the prior art is made up of four root posts, entablature, sill, the backhaul oil cylinder that is slidably mounted on middle cross beam between lower and upper cross-member, connects the operating cylinder of entablature and middle cross beam and is connected middle cross beam and sill.Guide sleeve structure is provided with between middle cross beam and column.This kind of guide frame is under unbalance loading processing operating mode, and be linear contact lay between the inwall of fairlead and column, contact surface is less, and therefore local pressure is comparatively large, easily causes column to pull.This guide frame can not adjust after installing on the other hand, therefore cannot make up the fairlead distortion that forging hot pressing causes, and causes guiding accuracy and stability to reduce, and easily causes column to pull.In addition, the cylinder body of operating cylinder is arranged on the entablature of hydraulic press, and the lower end of plunger rod and middle cross beam are rigid connection structure.Adopt this kind of connected mode, when hydraulic press being used for unbalance loading processing operating mode, plunger rod can deflect vertically, makes plunger rod and inboard wall of cylinder block form localized contact, easily causes cylinder body and plunger rod to pull destruction.
Summary of the invention
The present invention for solve in known technology the technical problem that exists and a kind of anti-bias load be provided, avoid column to pull, the position all around of adjustable middle cross beam, thus improve guiding accuracy and stability; Reduce cylinder body and plunger rod simultaneously and pull destruction, thus reduce the four post hydraulic forging presses in maintenance of equipment cost, extension device service life.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
Four post hydraulic forging presses, are made up of the operating cylinder of four root posts, entablature, middle cross beam, sill, connection entablature and middle cross beam and the backhaul oil cylinder that is connected middle cross beam and sill; Guide pillar structure is provided with between middle cross beam and column; Described oil cylinder adopts unidirectional ram cylinder, it comprise be arranged on entablature cylinder body, be placed in the plunger rod in cylinder body and the guide frame be located between plunger rod and inboard wall of cylinder block and seal, it is characterized in that:
Described guide pillar structure comprises be uniformly distributed along the circumference the four groups of guidance sets be located between middle cross beam and each column, often organize guidance set to be made up of guide plate and wedge, described guide plate with between wedge for wedge surface contacts, be plane contact between the medial surface of described guide plate and column; The upper end of described middle cross beam is provided with the pressing plate be pressed abd fixed on by described wedge in middle cross beam; Described guide plate is provided with the gripper shoe of outside horizontal-extending near the position of upper end, is provided with adjusting pad between described gripper shoe and pressing plate, and described gripper shoe is packed in above pressing plate by screw; Also dustproof construction is provided with between described guide plate and column;
The lower end of described plunger rod is shaped with cylindrical cavity, the first ball ring and sphere post that form mating spherical surfaces is provided with from top to bottom in described cylindrical cavity, described first ball ring is packed in the bottom of cylindrical cavity, described sphere post stretches out plunger rod lower end, its outer cover is equipped with the support set being packed in plunger rod lower end, the outside, lower end of described support set is shaped with lug boss, and described lug boss is added is equipped with the supporting structure be connected with middle cross beam, is provided with flexible pad between described supporting structure and lug boss; The inside, lower end of described support set is provided with the second ball ring be connected with middle cross beam, and the lower end of described second ball ring and sphere post is mating spherical surfaces.
The present invention can also adopt following technical scheme:
Described pressing plate is flange plate structure.
Described guide plate and gripper shoe are monolithic construction.
Described guide plate and gripper shoe are split-type structural, and described gripper shoe is connected with guide plate plug-in mounting.
Described dustproof construction comprises the dust-proof cushion that is arranged between guide plate and column and is packed in the cover plate that guide plate upper end is used for compressing dust-proof cushion.
Described supporting structure by the first flange welded with intermediate transverse girder upper end, be located at the second flange that the first flange upper end is connected with it and form with the flange sleeve that the second flange is connected, the described inner ring of the second flange compresses mutually with the periphery of flexible pad, and the lower end of described flange sleeve is pressed on the upper surface of flexible boot.
Described seal is combination sealing.
Described guide frame is be fastened on the first bronze medal guide pin bushing on inboard wall of cylinder block and the second bronze medal guide pin bushing up and down respectively, and described combination sealing is pressed between two bronze medal guide pin bushings.
The advantage that the present invention has and good effect are:
Guide pillar structure in hydraulic press adopts said structure, column is contacted with guide frame forming surface, increases contact area, substantially reduce the local pressure under unbalance loading operating mode, avoid column and pull; In addition, the guidance set be made up of guide plate and wedge is adjustable structure, and the gap between column and guide plate changes by the relative position of adjustment guide plate and wedge, therefore avoids and forges pulling of hot pressing and unbalance loading operating mode column.Operating cylinder in hydraulic press adopts said structure, under the operating mode of unbalance loading processing, to be rotated by the mating surface of the second ball ring globally post and sphere post rotates along the mating surface of the first ball ring, avoid plunger rod to deflect along axis, ensure to block bar vertically rectilinear motion, thus reduce cylinder body and plunger rod pulls destruction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of Fig. 1 central post guide frame;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the structural representation of unidirectional ram cylinder in Fig. 1;
Fig. 5 is the partial enlarged drawing of Fig. 4.
In figure: 1, column; 2, entablature; 3, middle cross beam; 4, sill; 5, operating cylinder; 5-1, cylinder body; 5-2, plunger rod; 5-3, the first ball ring; 5-4, sphere post; 5-5, support set; 5-5-1, lug boss; 5-6, supporting structure; 5-6-1, the first flange; 5-6-2, the second flange; 5-6-3, flange sleeve; 5-7, flexible pad; 5-8, the second ball ring; 5-9, combination sealing; 5-10, the first bronze medal guide pin bushing; 5-11, the second bronze medal guide pin bushing; 5-12, supported flange; 6, backhaul oil cylinder; 7, guide pillar structure; 7-1, guide plate; 7-2, wedge; 7-3, pressing plate; 7-4, gripper shoe; 7-5, adjusting pad; 7-6, dust-proof cushion; 7-7, cover plate.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-5, four post hydraulic forging press, be made up of four root posts 1, entablature 2, middle cross beam 3, sill 4, the operating cylinder 5 connecting entablature and middle cross beam and the backhaul oil cylinder 6 that is connected middle cross beam and sill.Guide pillar structure 7 is provided with between middle cross beam and column.Described operating cylinder adopts unidirectional ram cylinder, and the size of the quantity basis service load of operating cylinder is determined, can adopt single or multiple.
Above-mentioned guide pillar structure comprises be uniformly distributed along the circumference the four groups of guidance sets be made up of guide plate 7-1 and wedge 7-2 be located between middle cross beam and each column.Described guide plate with between wedge for wedge surface contacts, be plane contact between the medial surface of described guide plate and column.The upper end of described middle cross beam is provided with the pressing plate 7-3 be pressed abd fixed on by described wedge in middle cross beam.Concrete, in middle cross beam, be shaped with the circular bead surface supporting wedge, can arrange breach in wedge upper end near the position contacted with middle cross beam, above-mentioned pressing plate is pressed on the breach of wedge, and it is fixed by screws in the upper end of middle cross beam.Described guide plate is provided with the gripper shoe 7-4 of outside horizontal-extending near the position of upper end, is provided with adjusting pad 7-5 between described gripper shoe and pressing plate, and described gripper shoe is packed in above pressing plate by screw.Guide plate is fixed between column and wedge by above-mentioned gripper shoe, by changing the thickness of adjusting pad and adjust the gap between guide plate and column and realize front and back and the left and right adjustment of middle cross beam.Also dustproof construction is provided with between described guide plate and column.
The pressing plate of above-mentioned compression voussoir can make split-type structural, and the position namely often organizing guidance set arranges a block pressur plate respectively.From being convenient to process and the angle of assembling is considered, this pressing plate can be preferably monolithic construction, and namely pressing plate adopts flange plate structure, and namely one piece of flange plate structure pressing plate can be fixed four pieces of wedges along every root post simultaneously.
Above-mentioned guide plate and gripper shoe can adopt monolithic construction, namely guide plate and gripper shoe overall processing shaping; Guide plate and gripper shoe also can adopt split-type structural, and both are connected by plug-in mounting mode.Concrete, processing guide plate and gripper shoe respectively, guide plate is shaped with the position milling slot of side near upper end of wedge surface, being inserted in the slot of guide plate when assembling by one end of gripper shoe, the plug-in mounting that can realize both connects.
Above-mentioned dustproof construction avoids dust and other impurities and drops between guide plate and the mobile mating surface of column, avoids leg surface and scratches, guarantee that guide frame moves up and down smoothly along column.In the present embodiment, described dustproof construction is by the dust-proof cushion 7-6 be arranged between guide plate and column and be packed in guide plate upper end and be used for compressing the cover plate 7-7 of dust-proof cushion and form.
Above-mentioned unidirectional post rod type oil cylinder comprise be arranged on top beam of hydraulic machine cylinder body 5-1, be placed in plunger rod 5-2 in cylinder body and the guide frame be located between plunger rod and inboard wall of cylinder block and seal.The lower end of described plunger rod is shaped with cylindrical cavity, and be provided with the first ball ring 5-3 and sphere post 5-4 that form mating spherical surfaces in described cylindrical cavity from top to bottom, described first ball ring is packed in the bottom of cylindrical cavity by screw.Described sphere post stretches out plunger rod lower end, its outer cover is equipped with the support set 5-5 being packed in plunger rod lower end by screw, the outside, lower end of described support set is shaped with lug boss 5-5-1, described lug boss is added is equipped with the supporting structure 5-6 be connected with middle cross beam, be provided with flexible pad 5-7 between described supporting structure and lug boss, flexible pad can be made by polyurethane rubber, and flexible pad can adopt common plain cushion structure, also U-shaped mat structure can be adopted, specifically as shown in the figure.The inside, lower end of described support set is provided with the second ball ring 5-8 be connected by screw and middle cross beam, and the lower end of described second ball ring and sphere post is mating spherical surfaces.All need reserved certain gap value between above-mentioned cylindrical cavity and sphere post, between the endoporus of support set and sphere post and between the joint face of the first ball ring and middle cross beam and the lower surface of support set, the size of gap value is processed operating mode by concrete unbalance loading and is determined.
Middle cross beam is supported on support set by above-mentioned supporting structure, forms a kind of free-standing connected mode between the two.When process unbalance loading workpiece time, second ball ring drive middle cross beam globally post mating surface rotate, middle cross beam drive supporting structure rotate, supporting structure extruding flexible pad, flexible pad generation elastic deformation, absorbs most active force.After middle cross beam and unbalance loading workpiece depart from, under the resilient force of flexible pad, whole supporting structure, middle cross beam and the second ball ring rotate and reset.Above-mentioned supporting structure can further by the first flange 5-6-1 welded with intermediate transverse girder upper end, be located at the first flange upper end and its second flange 5-6-2 be connected by screw and form with the flange sleeve 5-6-3 that the second flange is connected by screw.The described inner ring of the second flange compresses mutually with the periphery of flexible pad, and the lower end of described flange sleeve is pressed on the upper surface of flexible boot.
Above-mentioned hydraulic press is generally used for hot-working operating mode, for avoiding the seal heat damage between plunger rod and inboard wall of cylinder block, thus causes hydraulic press leakage of oil to stop production.In the utility model, seal is combination sealing 5-9 more preferably, and also claim rubber to add cloth sealing, the heat resistanceheat resistant type of this kind of sealing and intensity are all higher than common sealing ring, such as y-type seal ring.Guide frame structure between above-mentioned plunger rod and inboard wall of cylinder block can adopt the fairlead of cast iron quality or the guidance tape of outsourcing, in the utility model, guide frame is preferably fastened on the first bronze medal guide pin bushing 5-10 on inboard wall of cylinder block and the second bronze medal guide pin bushing 5-11 up and down, described combination sealing is pressed between two bronze medal guide pin bushings, the lower end of the second fairlead arranges supported flange 5-12, and supported flange is packed in the lower end of cylinder body by screw.

Claims (10)

1. four post hydraulic forging presses, are made up of the operating cylinder of four root posts, entablature, middle cross beam, sill, connection entablature and middle cross beam and the backhaul oil cylinder that is connected middle cross beam and sill; Guide pillar structure is provided with between middle cross beam and column; Described oil cylinder adopts unidirectional ram cylinder, it comprise be arranged on entablature cylinder body, be placed in the plunger rod in cylinder body and the guide frame be located between plunger rod and inboard wall of cylinder block and seal, it is characterized in that:
Described guide pillar structure comprises be uniformly distributed along the circumference the four groups of guidance sets be located between middle cross beam and each column, often organize guidance set to be made up of guide plate and wedge, described guide plate with between wedge for wedge surface contacts, be plane contact between the medial surface of described guide plate and column; The upper end of described middle cross beam is provided with the pressing plate be pressed abd fixed on by described wedge in middle cross beam; Described guide plate is provided with the gripper shoe of outside horizontal-extending near the position of upper end, is provided with adjusting pad between described gripper shoe and pressing plate, and described gripper shoe is packed in above pressing plate by screw; Also dustproof construction is provided with between described guide plate and column;
The lower end of described plunger rod is shaped with cylindrical cavity, the first ball ring and sphere post that form mating spherical surfaces is provided with from top to bottom in described cylindrical cavity, described first ball ring is packed in the bottom of cylindrical cavity, described sphere post stretches out plunger rod lower end, its outer cover is equipped with the support set being packed in plunger rod lower end, the outside, lower end of described support set is shaped with lug boss, and described lug boss is added is equipped with the supporting structure be connected with middle cross beam, is provided with flexible pad between described supporting structure and lug boss; The inside, lower end of described support set is provided with the second ball ring be connected with middle cross beam, and the lower end of described second ball ring and sphere post is mating spherical surfaces.
2. four post hydraulic forging presses according to claim 1, is characterized in that: described pressing plate is flange plate structure.
3. four post hydraulic forging presses according to claim 1 or 2, is characterized in that: described guide plate and gripper shoe are monolithic construction.
4. four post hydraulic forging presses according to claim 1 or 2, is characterized in that: described guide plate and gripper shoe are split-type structural, and described gripper shoe is connected with guide plate plug-in mounting.
5. four post hydraulic forging presses according to claim 3, is characterized in that: described dustproof construction comprises the dust-proof cushion that is arranged between guide plate and column and is packed in the cover plate that guide plate upper end is used for compressing dust-proof cushion.
6. four post hydraulic forging presses according to claim 4, is characterized in that: described dustproof construction comprises the dust-proof cushion that is arranged between guide plate and column and is packed in the cover plate that guide plate upper end is used for compressing dust-proof cushion.
7. according to the arbitrary described four post hydraulic forging presses of claim 1,5,6, it is characterized in that: described supporting structure by the first flange welded with intermediate transverse girder upper end, be located at the second flange that the first flange upper end is connected with it and form with the flange sleeve that the second flange is connected, the described inner ring of the second flange compresses mutually with the periphery of flexible pad, and the lower end of described flange sleeve is pressed on the upper surface of flexible boot.
8. four post hydraulic forging presses according to claim 1, is characterized in that: described seal is combination sealing.
9. four post hydraulic forging presses according to claim 7, is characterized in that: described seal is combination sealing.
10. four post hydraulic forging presses according to claim 8 or claim 9, is characterized in that: described guide frame is be fastened on the first bronze medal guide pin bushing on inboard wall of cylinder block and the second bronze medal guide pin bushing up and down respectively, and described combination sealing is pressed between two bronze medal guide pin bushings.
CN201210038872.8A 2012-02-17 2012-02-17 Four-column forging hydraulic machine Expired - Fee Related CN102582101B (en)

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Application Number Priority Date Filing Date Title
CN201210038872.8A CN102582101B (en) 2012-02-17 2012-02-17 Four-column forging hydraulic machine

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Application Number Priority Date Filing Date Title
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CN102582101B true CN102582101B (en) 2014-12-17

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AT286070B (en) * 1969-04-22 1970-11-25 Haemmerle Ag Maschf Sheet metal working machine
DE2240267A1 (en) * 1971-08-16 1973-02-22 Przedsieebiorstwo Doswiadczaln DOUBLE-SIDED HYDRAULIC PRESS
US4509910A (en) * 1983-11-18 1985-04-09 Mts Systems Corporation Column clamping assembly
CN1493413A (en) * 2002-10-31 2004-05-05 天津市天锻压力机有限公司 Isothermal forging hydrulic press used for processing titanium alloy product
CN2846104Y (en) * 2005-11-21 2006-12-13 天津市天锻压力机有限公司 Slide block bottom placed four pillar hydraulic press guided by rail
CN101733351A (en) * 2008-10-12 2010-06-16 通裕重工股份有限公司 120MN free forging oil press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT286070B (en) * 1969-04-22 1970-11-25 Haemmerle Ag Maschf Sheet metal working machine
DE2240267A1 (en) * 1971-08-16 1973-02-22 Przedsieebiorstwo Doswiadczaln DOUBLE-SIDED HYDRAULIC PRESS
US4509910A (en) * 1983-11-18 1985-04-09 Mts Systems Corporation Column clamping assembly
CN1493413A (en) * 2002-10-31 2004-05-05 天津市天锻压力机有限公司 Isothermal forging hydrulic press used for processing titanium alloy product
CN2846104Y (en) * 2005-11-21 2006-12-13 天津市天锻压力机有限公司 Slide block bottom placed four pillar hydraulic press guided by rail
CN101733351A (en) * 2008-10-12 2010-06-16 通裕重工股份有限公司 120MN free forging oil press

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Application publication date: 20120718

Assignee: Tianjin Tian Bang Ruifeng press manufacturing Co., Ltd.

Assignor: Tianduan Press Co., Ltd., Tianjin City

Contract record no.: 2016120000024

Denomination of invention: Four-column forging hydraulic machine

Granted publication date: 20141217

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Record date: 20160921

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Granted publication date: 20141217

Termination date: 20180217