CN108906968B - Slider direction and precision adjustment structure suitable for hot punching and cutting press - Google Patents

Slider direction and precision adjustment structure suitable for hot punching and cutting press Download PDF

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Publication number
CN108906968B
CN108906968B CN201810833711.5A CN201810833711A CN108906968B CN 108906968 B CN108906968 B CN 108906968B CN 201810833711 A CN201810833711 A CN 201810833711A CN 108906968 B CN108906968 B CN 108906968B
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China
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guide
guide plate
adjusting
bolt
plate
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CN108906968A (en
Inventor
姚镇波
崔曰轩
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Jinchen Machinery Co ltd
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Jinchen Machinery Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04Frames; Guides

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

The utility model provides a slider direction and precision adjustment structure suitable for hot punching cuts press, is including left stand and the right stand that is located both ends about the slider respectively to and be located preceding deflector and the back deflector of both sides around the slider respectively, preceding deflector and back deflector link to each other with left stand and right stand through deflector adjusting bolt respectively, the inside wall left end symmetry of preceding deflector and back deflector is vertical to be equipped with two lugs, is equipped with the recess corresponding with the lug on the slider, sliding connection between slider and the left stand, between the left surface and the bottom surface of recess and lug, the interval sets up before slider and the right stand. The device adopts the structure, has reasonable design, limits the respective degree of freedom of the sliding block in the non-motion direction, and ensures the running precision of the sliding block; can effectively avoid the slider to be blocked in the guide rail clearance after being heated and expanded, prolong the service life of the die and meet market requirements.

Description

Slider direction and precision adjustment structure suitable for hot punching and cutting press
Technical Field
The invention relates to a slide block guiding and precision adjusting structure suitable for a hot punching and cutting press.
Background
Forging equipment, whether it is a crankshaft type mechanical press, screw press or hydraulic press, the slide is the most important component part thereof. Because the slide block needs to carry a precise and precious die to forge and mold the workpiece, not only qualified parts are machined, but also the service lives of the die and equipment are prolonged as much as possible, so the requirement on the movement precision is very high. The motion precision of the sliding block is the most important precision acceptance index of the press, and the precision acceptance indexes have clear regulations in relevant national, industrial or enterprise standards, such as GB/T10924-2009 closed single-point and double-point press precision, JB/T5198-2007 die forging screw press precision, GB 9166-88 four-column hydraulic press precision and the like. The motion precision of the sliding block mainly has 3 requirements: firstly, the parallelism of the bottom surface of the sliding block and the upper plane of the workbench, secondly, the perpendicularity of the travel of the sliding block and the upper plane of the workbench, and thirdly, the clearance of the guide rail, and whether the 3 requirements meet relevant standards is a necessary condition for whether the equipment is qualified or not.
The guiding of the sliding block movement generally adopts a guide rail arranged at four corners to limit the respective freedom degree of the sliding block in the non-movement direction so as to ensure the correct guiding and the precision maintenance of the sliding speed, and the structures of the four corners are identical, namely the four corners have identical constraint conditions. At present, the guiding structure of the sliding block mainly comprises four-corner eight-plane right-angle guiding rails suitable for a wide-table-board closed double-point or four-point press, four-corner four-plane 45-degree guiding rails suitable for a small-table-board single-point press and four-corner four-cylindrical-surface guiding rails suitable for a four-column hydraulic press, the guiding structures can be well suitable for cold processing processes such as blanking, stretching, punching and the like of automobile panel, but are not very suitable for hot processing processes, particularly when a workpiece is long and is required to be subjected to hot trimming, punching and correction after final forging by a double-point press, the temperature of the workpiece is high and the heat conduction effect is high, the temperature of the sliding block is changed in the process of switching from shutdown to use of equipment, the length of the sliding block and the gap of the guiding rail are also changed, so that the guiding precision of the sliding block is unstable, if the guiding gap and the guiding precision are adjusted according to standards at normal temperature, the sliding block is heated and expanded, the guiding gap is reduced, and even a lubricating oil film is possibly pressed and broken, the guiding rail is accelerated and the guiding gap is quickly lost along with the rising temperature of the sliding block; if the guide gap is too small after the slider is heated, the guide gap is larger at normal temperature, so that the guide accuracy of the slider is poor at normal temperature or at low temperature, and left and right shaking can occur in the guide rail. Therefore, at present, a guide structure which is used for restraining four corners of the sliding block equally, in particular to a guide structure for carrying out hot working on an elongated part, has low guide precision and instability of the sliding block, influences the processing precision of a workpiece, is easy to cause die damage and increases cost.
The national invention patent with publication number CN107756862A discloses a technical scheme of a guide rail structure of a press capable of avoiding thermal expansion, solves the problem that a slide block is blocked in a guide rail gap after being heated and expanded, but the structure is free to expand after being heated, the gap between a bump and a groove is increased, the problem that the slide block moves in a non-advancing direction exists, the precision is not easy to control, and the requirement of the market on the running precision of the slide block cannot be met.
Disclosure of Invention
The invention provides a slide block guiding and precision adjusting structure suitable for a hot punching and cutting press, which is reasonable in design, can prevent the slide block from being blocked in a guide rail gap after being heated and expanded, can ensure the running precision of the slide block at normal temperature, and solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
The utility model provides a slider direction and precision adjustment structure suitable for hot punching cuts press, is including left stand and the right stand that is located both ends about the slider respectively to and be located preceding deflector and the back deflector of both sides around the slider respectively, preceding deflector and back deflector link to each other with left stand and right stand through deflector adjusting bolt respectively, the inside wall left end symmetry of preceding deflector and back deflector is vertical to be equipped with two lugs, is equipped with the recess corresponding with the lug on the slider, sliding connection between slider and the left stand, between the left surface and the bottom surface of recess and lug, the interval sets up before slider and the right stand.
Preferably, two sides of the right end of the sliding block are respectively connected with the front guide plate and the rear guide plate in a sliding way.
Preferably, the slider includes two left guide posts and two right guide posts, the recess all sets up on left guide post, all links to each other through the connecting plate between two pairs of adjacent left guide posts and right guide posts, between two left guide posts and between two right guide posts, left side face and the bottom surface sliding connection of lug on left side guide post and left stand, preceding deflector and the back deflector, right guide post and preceding deflector and back deflector sliding connection.
Preferably, an adjusting oblique iron is arranged between the left guide post and the left upright post, an inclined plane corresponding to the adjusting oblique iron is arranged on the left guide post, and the adjusting oblique iron is connected with the front guide plate and the rear guide plate through oblique iron adjusting bolts.
Preferably, the adjusting chute is a trapezoid adjusting chute, and the long bottom edge of the adjusting chute is positioned on the outer side.
Preferably, the oblique iron adjusting bolt comprises a jacking oblique iron bolt and a pulling oblique iron bolt, the front guide plate and the rear guide plate are respectively provided with a through hole and a threaded hole at intervals, the jacking oblique iron bolt is in butt joint with the adjusting oblique iron after being threaded into the threaded holes, the pulling oblique iron bolt penetrates through the through holes to be in threaded connection with the adjusting oblique iron, and the pulling oblique iron bolt outside the through holes is provided with a pulling nut.
Preferably, locking nuts are arranged on the jacking oblique iron bolt and the pulling oblique iron bolt.
Preferably, a first guide rail plate which is arranged on the lug through a bolt is arranged between the groove and the left side surface of the lug, a second guide rail plate which is arranged on the lug through a bolt is arranged between the groove and the bottom surface of the lug, and a third guide rail plate is arranged on the front guide plate between the right guide post and the front guide plate and on the rear guide plate between the right guide post and the rear guide plate through bolts.
Preferably, the first guide rail plate, the second guide rail plate and the third guide rail plate are wear-resistant guide plates.
Preferably, the front guide plate and the rear guide plate are respectively provided with a first positioning hole, the front side and the rear side of the right upright post are respectively provided with a second positioning hole corresponding to the first positioning hole, and the positioning pins respectively arranged on the front guide plate and the rear guide plate penetrate through the first positioning holes and the second positioning holes.
The invention adopts the structure, has reasonable design, and the design of the lug and the adjusting chute on the guide plate limits the respective degree of freedom of the sliding block in the non-motion direction and ensures the running precision of the sliding block; meanwhile, one end of the sliding block is limited by the protruding block, and the other end of the sliding block is provided with enough telescopic space, so that the sliding block can be effectively prevented from being blocked in a guide rail gap after being heated and expanded, the service life of the die is prolonged, and the market requirement is met.
Drawings
FIG.1 is a schematic diagram of the structure of the present invention;
Fig. 2 is a cross-sectional view taken along A-A of fig. 1.
In the figure, 1, left upright, 2, right upright, 3, front guide plate, 4, rear guide plate, 5, guide plate adjusting bolt, 6, convex block, 7, groove, 8, left guide column, 9, right guide column, 10, connecting plate, 11, adjusting inclined iron, 12, inclined plane, 13, jacking inclined iron bolt, 14, pulling inclined iron bolt, 15, through hole, 16, threaded hole, 17, pulling nut, 18, locking nut, 19, first guide rail plate, 20, second guide rail plate, 21, third guide rail plate, 22, locating pin, 23 and connecting rod.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1-2, a slide block guiding and precision adjusting structure suitable for a hot punching press comprises a left upright 1 and a right upright 2 which are respectively positioned at the left end and the right end of the slide block, and a front guide plate 3 and a rear guide plate 4 which are respectively positioned at the front side and the rear side of the slide block, wherein the front guide plate 3 and the rear guide plate 4 are respectively connected with the left upright 1 and the right upright 2 through guide plate adjusting bolts 5, two convex blocks 6 are symmetrically and vertically arranged at the left end of the inner side wall of the front guide plate 3 and the left end of the rear guide plate 4, grooves 7 corresponding to the convex blocks 6 are formed in the slide block, the slide block is connected with the left upright 1 in a sliding manner, and the grooves 7 are connected with the left side face and the bottom face of the convex blocks 6 in a sliding manner, and the front of the right upright 2 are arranged at intervals.
The two sides of the right end of the sliding block are respectively connected with the front guide plate 3 and the rear guide plate 4 in a sliding way.
The slider includes two left guide posts 8 and two right guide posts 9, recess 7 all sets up on left guide post 8, all links to each other through connecting plate 10 between two pairs of adjacent left guide posts 8 and right guide posts 9, between two left guide posts 8 and between two right guide posts 9, left side face and the bottom surface sliding connection of lug 6 on left stand 1, preceding deflector 3 and the back deflector 4 of left guide post 8, right guide post 9 and preceding deflector 3 and back deflector 4 sliding connection. In the original slide block guiding device, the slide block is mainly guided by the left upright post 2, the right upright post 2 and the front and rear guide plates 4, and the slide block is mainly supported and guided by the four guide posts, namely, the four guide posts are in sliding connection with the left upright post 2, the right upright post 2 and the front and rear guide plates 4, namely, gaps exist among the four guide posts, the left upright post 2, the right upright post 2, the front and rear guide plates 4, but are small, the problem is that when the slide block is expanded by heating, the gap is easy to block, if the gap is increased at normal temperature, although the slide block is prevented from being blocked in the guide rail by heating expansion, the slide block at normal temperature can shake in the left and right directions, and the operation precision of the slide block is affected. According to the application, the left guide post 8 is mainly used for guiding, the gap between the groove 7 and the left side surface of the lug 6 is adjusted by adjusting the oblique iron 11, so that the sliding block is prevented from swinging in the left-right direction, and only moves up and down along the lug 6, and the running precision of the sliding block is ensured; meanwhile, when the sliding block is heated, the position of the left end is basically fixed and the right end can freely stretch and retract under the limitation of the left guide post 8, and because the sliding block is not guided by the right end, the right end can leave enough space, so that a room is reserved for the heated deformation of the sliding block, and the blocking condition is avoided. The left guide post 8 part between the inclined iron 11 and the left side surface of the protruding block 6 is adjusted to be as small as possible on the premise of meeting the requirements of strength and rigidity, so that the influence of thermal deformation on the left guide rail clearance and the guide rail precision can be reduced to the greatest extent, and in actual use, the absolute value of the thermal deformation of the left guide post 8 part between the inclined iron 11 and the left side surface of the protruding block 6 is adjusted to be much smaller than that of the standard guide rail clearance (generally the value of 0.15-0.2 mm), so that the guide rail clearance and the guide precision are basically not influenced.
An adjusting oblique iron 11 is arranged between the left guide post 8 and the left upright post 1, an inclined surface 12 corresponding to the adjusting oblique iron 11 is arranged on the left guide post 8, and the adjusting oblique iron 11 is connected with the front guide plate 3 and the rear guide plate 4 through oblique iron adjusting bolts.
The adjusting chute 11 is a trapezoid adjusting chute 11, and the long bottom edge of the adjusting chute 11 is positioned on the outer side. The setting of trapezoidal adjustment angle iron 11 can adjust the distance between left stand 1 and the slider as required, and there is some error in the production of spare part always, and adjustment angle iron 11 can effectively guarantee that the clearance between the left surface of recess 7 and lug 6 is the prescribed value, takes place to rock about avoiding the slider up-and-down motion, can't guarantee the running accuracy of slider.
The oblique iron adjusting bolt comprises a jacking oblique iron bolt 13 and a pulling oblique iron bolt 14, through holes 15 and threaded holes 16 are formed in the front guide plate 3 and the rear guide plate 4 at intervals, the jacking oblique iron bolt 13 is in butt joint with the adjusting oblique iron 11 after being installed into the threaded holes 16 in a threaded mode, the pulling oblique iron bolt 14 penetrates through the through holes 15 to be in threaded connection with the adjusting oblique iron 11, and pulling nuts 17 are arranged on the pulling oblique iron bolt 14 outside the through holes 15. The jacking chute bolt 13 is used for pushing the adjusting chute 11 inwards, when the jacking chute bolt 13 is screwed inwards, the adjusting chute 11 which is abutted against the jacking chute bolt 13 is pushed inwards by the jacking chute bolt 13, so that the relative position of the adjusting chute 11 and the inclined plane 12 is changed, and the gap between the groove 7 and the left side face of the lug 6 is reduced; the pull-out inclined iron bolt 14 is used for pulling the adjusting inclined iron 11 outwards, the end part of the pull-out inclined iron bolt 14 is in threaded connection with the adjusting inclined iron 11, when the end part of the pull-out inclined iron bolt 14 is completely screwed into the adjusting inclined iron 11, the pull-out inclined iron bolt 14 can be approximately regarded as being fixedly connected with the adjusting inclined iron 11, the pull-out nut 17 is screwed inwards, the pull-out inclined iron bolt 14 is screwed outwards under the torque of the pull-out nut 17, the adjusting inclined iron 11 is driven to extend outwards, and the gap between the groove 7 and the left side face of the lug 6 is enlarged.
Locking nuts 18 are arranged on the jacking oblique iron bolts 13 and the pulling oblique iron bolts 14. Effectively locking the jacking chute bolts 13 and pulling out chute bolts 14.
A first guide rail plate 19 which is arranged on the convex block 6 through bolts is arranged between the groove 7 and the left side surface of the convex block 6, a second guide rail plate 20 which is arranged on the convex block 6 through bolts is arranged between the groove 7 and the bottom surface of the convex block 6, and a third guide rail plate 21 is arranged on the front guide plate 3 between the right guide post 9 and the front guide plate 3 and on the rear guide plate 4 between the right guide post 9 and the rear guide plate 4 through bolts. The three guide plates are mainly contacted with the front guide plate 3 and the rear guide plate 4 and slide relatively, wherein the first guide plate and the second guide plate play a role in restraining the slide in two orthogonal directions, and the third guide plate plays a role in restraining the slide in the front-back direction, so that the left-right direction is not limited. The second guide plate and the third guide plate may substantially play a role in adjusting the distance of the slider from the front-rear guide plate 4 in the front-rear direction.
The first guide rail plate 19, the second guide rail plate 20 and the third guide rail plate 21 are wear-resistant guide plates. Prolonging the service life of the equipment.
The front guide plate 3 and the rear guide plate 4 are respectively provided with a first positioning hole, the front side and the rear side of the right upright post 2 are respectively provided with a second positioning hole corresponding to the first positioning hole, and the positioning pins 22 respectively arranged on the front guide plate 3 and the rear guide plate 4 penetrate through the first positioning hole and the second positioning hole. The front guide plate 3 and the rear guide plate 4 are respectively arranged between the left upright 1 and the right upright 2, the front guide plate 3 and the rear guide plate 4 are temporarily fixed through the positioning pins 22, the threaded holes 16 on the front guide plate 3 and the rear guide plate 4 are respectively aligned with the threaded holes 16 on the left upright 1 and the right upright 2, the assembly is convenient, and the working efficiency is improved.
Before the slide block and the adjusting wedge 11 are put between the left upright 1 and the right upright 2 and the guide plate adjusting bolt 5 is installed, the front guide plate 3 and the rear guide plate 4 are positioned on the left upright 1 and the right upright 2 through the positioning pin 22, the threaded holes 16 on the front guide plate 3 and the rear guide plate 4 are aligned with the threaded holes 16 on the left upright 1 and the right upright 2, the assembly time is shortened, the assembly precision is improved, the jacking wedge bolt 13 and the pulling-out wedge bolt 14 are adjusted, the left guide post 8 is guaranteed to be in close contact with the left side face of the bump 6 and the adjusting wedge 11 and can slide relatively, and the assembly is completed; when in use, the two connecting rods 23 drive the sliding blocks to move up and down along the convex blocks 6, and the workpiece is processed.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.

Claims (5)

1. The sliding block guiding and precision adjusting structure suitable for the hot punching press comprises a left upright post and a right upright post which are respectively positioned at the left end and the right end of the sliding block, and a front guide plate and a rear guide plate which are respectively positioned at the front side and the rear side of the sliding block, wherein the front guide plate and the rear guide plate are respectively connected with the left upright post and the right upright post through guide plate adjusting bolts;
the two sides of the right end of the sliding block are respectively connected with the front guide plate and the rear guide plate in a sliding way;
The sliding block comprises two left guide posts and two right guide posts, the grooves are formed in the left guide posts, two pairs of adjacent left guide posts and right guide posts are connected through connecting plates, the left guide posts are in sliding connection with left side surfaces and bottom surfaces of the convex blocks on the left upright posts, the front guide plates and the rear guide plates, and the right guide posts are in sliding connection with the front guide plates and the rear guide plates;
an adjusting oblique iron is arranged between the left guide post and the left upright post, an inclined plane corresponding to the adjusting oblique iron is arranged on the left guide post, and the adjusting oblique iron is connected with the front guide plate and the rear guide plate through oblique iron adjusting bolts;
the adjusting inclined iron is a trapezoid adjusting inclined iron, and the long bottom edge of the adjusting inclined iron is positioned on the outer side;
The oblique iron adjusting bolt comprises a jacking oblique iron bolt and a pulling oblique iron bolt, through holes and threaded holes are formed in the front guide plate and the rear guide plate at intervals, the jacking oblique iron bolt is in butt joint with the adjusting oblique iron after being installed into the threaded holes in a threaded mode, the pulling oblique iron bolt penetrates through the through holes to be in threaded connection with the adjusting oblique iron, and pulling nuts are arranged on the pulling oblique iron bolts outside the through holes.
2. The slide block guiding and precision adjusting structure for the hot stamping press machine of claim 1, wherein locking nuts are arranged on the jacking oblique iron bolt and the pulling oblique iron bolt.
3. The slide guide and precision adjustment structure for a hot stamping press as set forth in claim 1, wherein a first guide rail plate mounted on the bump by a bolt is disposed between the groove and the left side of the bump, a second guide rail plate mounted on the bump by a bolt is disposed between the groove and the bottom of the bump, and a third guide rail plate is mounted by a bolt on both the front guide plate between the right guide post and the front guide plate and the rear guide plate between the right guide post and the rear guide plate.
4. The slide guiding and precision adjusting structure for a hot stamping press as claimed in claim 3, wherein the first guide rail plate, the second guide rail plate and the third guide rail plate are wear-resistant guide plates.
5. The structure of claim 1, wherein the front guide plate and the rear guide plate are respectively provided with a first positioning hole, the front and rear sides of the right upright post are respectively provided with a second positioning hole corresponding to the first positioning hole, and the positioning pins respectively arranged on the front guide plate and the rear guide plate penetrate through the first positioning hole and the second positioning hole.
CN201810833711.5A 2018-07-26 2018-07-26 Slider direction and precision adjustment structure suitable for hot punching and cutting press Active CN108906968B (en)

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CN108906968A (en) 2018-11-30

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