CN105729386A - Multifunctional clamping and dismounting device - Google Patents

Multifunctional clamping and dismounting device Download PDF

Info

Publication number
CN105729386A
CN105729386A CN201610255088.0A CN201610255088A CN105729386A CN 105729386 A CN105729386 A CN 105729386A CN 201610255088 A CN201610255088 A CN 201610255088A CN 105729386 A CN105729386 A CN 105729386A
Authority
CN
China
Prior art keywords
described
cantilever
horizontal
right
bidirectional helical
Prior art date
Application number
CN201610255088.0A
Other languages
Chinese (zh)
Inventor
刘强
Original Assignee
刘强
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 刘强 filed Critical 刘强
Priority to CN201610255088.0A priority Critical patent/CN105729386A/en
Publication of CN105729386A publication Critical patent/CN105729386A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/062Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws

Abstract

The invention discloses a multifunctional clamping and dismounting device which comprises a transverse beam, a bidirectional threaded rod, a threaded top rod and a cantilever, wherein a horizontal through hole is formed inside the transverse beam; a horizontal notch which passes through two end surfaces of the transverse beam is formed in the lower side of the transverse beam; the horizontal notch is positioned right below the horizontal through hole; threads opposite to each other are formed in the left and right sides of the bidirectional threaded rod respectively; the bidirectional threaded rod is positioned inside the horizontal through hole of the transverse beam; the threaded top rod vertically penetrates through the transverse beam and the bidirectional threaded rod and is in threaded connection with the transverse beam; the cantilever comprises a left cantilever and a right cantilever which are positioned on two sides of the threaded top rod and slide along the horizontal notch; the top ends of the left cantilever and the right cantilever are respectively in threaded connection with the bidirectional threaded rod and hook-shaped cantilever hooks are arranged at the bottom ends of the left cantilever and the right cantilever. The multifunctional clamping and dismounting device is excellent in clamping and fixing property and can be used for assembling and disassembling bearings, sealing and clamping sealed containers, and the like, and effective assurance can be provided for improvement of production efficiency and product quality.

Description

A kind of multi-functional clamping provision for disengagement

Technical field

The invention belongs to technical field of tooling clamps, particularly relate to a kind of clamping disassembling fixture being applicable to multiple parts.

Background technology

In commercial production manufactures, frock clamp is requisite manufacture aid, is widely used in the field such as machining, Product Assembly.Current many revolution type components are required for mounting or dismounting bearing, and bearing when mounting or dismounting owing in most cases its inner ring and axle are all interference fit, therefore it is difficult to ensure that assembly precision when assembling, and the bearing installation method that factory is conventional, often by bearing holder (housing, cover) on axle after, withstand the inner ring of bearing with a sleeve and down beat and assemble.As it is shown in figure 1, on vice clamp shaft c, first bearing b is enclosed within the top of axle c, then withstands on the opening of sleeve a on the inner ring of bearing b, beat the top of sleeve a with mallet, make bearing b move down, thus being assembled the shaft shoulder place being fixed on axle c;And when dismantling bearing b, the same inner ring using a longer relevant sleeve reversely to knock bearing b, to reach the purpose of dismounting.For the bearing that conventional bearing outer ring is installed with dead eye interference fit, production also adopts above-mentioned similar mounting and dismounting method mostly, withstands bearing outer ring with sleeve or axle and carry out mounting or dismounting.Although above-mentioned mounting or dismounting mode is simple, but mounting or dismounting quality is very bad, when beaing sleeve, dynamics of beaing is uneven, and bearing b fully relies on the rigid shock beaing generation and moves down, easily run out bearing the inner ring of b, cause bearing b deformation and the mating surface of abrasion axle c, the axiality coordinated between impact assembling rear bearing b and axle c, thus causing that axle c produces beat vibrations when revolution, affect the service behaviour of whole equipment, even produce contingency.Another year aspect, generally require when the Maintenance and Repair of equipment and be carried out bearing b or axle c safeguarding or changing, the now dismounting of bearing is a very big difficult problem, adopts the mode beaten to carry out dismantling the badly damaged bearing of meeting and axle equally, cuts down the service life of parts;And existing split bearing disassembling fixture even directly utilizes external force and forces separation to be dismantled the Internal and external cycle of bearing, the method for dismounting that this cruelty is rough destroys the serviceability of bearing more undoubtedly, particularly with the dismounting of high-precision bearing, this frock is very inadvisable.

In the industrial production except the mounting or dismounting of above-mentioned bearing, being fixedly clamped of some parts is also frequently problem.Such as shown in Fig. 2: a pressure-bearing hermetic container d, make need afterwards detection chamber wall whether defective, or detection container d and container cover e between in conjunction with whether defective between sealing surface, to prevent seepage.Adopt the bolt-connection of flange-interface form between usual container cover e and container d, such as the installation of the tank body upper top covers such as liquefied ammonia, liquid nitrogen or fuel oil, all adopt bolt-connection;And in the industrial production, these equipment is produced in enormous quantities often, if employing bolt fastens seal and pressure bearing detection before dispatching from the factory in turn, then waste time and energy, and when there is multiple attachment bolt especially container originally as middle and low-pressure vessel, for ensureing production efficiency and date of delivery, tending not to verify that whether the degree of tightening of each bolt is consistent, then there is seepage in detection, thus causing that pressure-bearing test produces flase drop, product mistake is reprocessed, and cost and date of delivery are caused the impact that cannot estimate.

In actual production is lived, the production process of many similar above-mentioned situations is directed to be fixedly clamped, in such as common machining, almost the processing of each parts is directed to clamping, dismounting, the processing of the parts of especially multiple part combination, its part itself may not for meeting clamping and additional process hole, groove etc., so clamping is also a difficult problem.As can be seen here, carrying out to fast and reliable the indispensable premise that clamping is to ensure that and improves product quality, therefore, design is a kind of applied widely, and clamping device easy and simple to handle is very necessary.

Summary of the invention

It is an object of the invention to solve above-mentioned technical problem, a kind of multi-functional clamping provision for disengagement is provided, the such as equipment such as bearing, pressure resistant vessel and parts can be installed, dismantle or clamp to fast and reliable by this clamping provision for disengagement, improve production efficiency, it is ensured that product quality.

Technical scheme is as follows:

A kind of multi-functional clamping provision for disengagement, including crossbeam, bidirectional helical bar, threaded mandrel and cantilever;It is provided with horizontal through hole inside described crossbeam, on the downside of it, is provided with through the horizontal slots of described crossbeam both ends of the surface, and described horizontal slots is positioned at the underface of described horizontal through hole;The right and left on described bidirectional helical bar is equipped with screw thread reversely with each other, and described bidirectional helical bar is positioned at the horizontal through hole of described crossbeam;Described threaded mandrel passes vertically through described crossbeam and bidirectional helical bar, and with described crossbeam thread connection;Described cantilever includes being positioned at the left cantilever that can slide along described horizontal slots of described threaded mandrel both sides and right cantilever, and the top of described left cantilever and right cantilever is equipped with hook-shaped cantilever hooks with described bidirectional helical bar thread connection and bottom respectively.

Further, described horizontal slots cross section is rectangle;The outline that the shape of cross section of described horizontal through hole is a major arc and a rectangle is formed by connecting, described horizontal through hole is divided into major arc hole section and rectangular opening section two parts, wherein, the two-end-point of described major arc is connected with the two-end-point of described rectangle the same side respectively, and described rectangular opening section vertically communicates with described horizontal slots.

Further, described left cantilever all includes the T-shaped cantilever lever being connected with described cantilever hooks with right cantilever, the upper horizontal transverse slat of described T-shaped cantilever lever is positioned at the rectangular opening section of described horizontal through hole, and is additionally provided with the screw thread matched with the described left and right both sides of bidirectional helical bar on described upper horizontal transverse slat.

Further, described threaded mandrel includes upper ejector pin and screw thread lower push rod;The top of described upper ejector pin is provided with handwheel, is provided with compression spring between described handwheel and described crossbeam;The bottom face of described upper ejector pin is provided with blind round hole, and described blind round hole inwall is fixed with an arc stick, and the external arc wall of described arc stick and described blind round hole inwall are fixedly linked;Described screw thread lower push rod is provided with screw thread, and its top end face is fixed with an arc boss, the external arc wall of described arc boss and described blind round hole inwall movable contact.

Further, described arc stick is all identical with the radius of the inside and outside circular arc wall of arc boss, and the radian sum of the two is less than or equal to π.

Further, the two ends, left and right of described bidirectional helical bar are arranged with the rotation preventive mechanism being made up of catch, spring, movable external gear and fixing internal tooth, and its right-hand member is additionally provided with handwheel;Described spring housing is on described bidirectional helical bar, its two ends are equipped with the catch being enclosed within described bidirectional helical bar, described catch and described bidirectional helical bar matched in clearance, wherein, one piece of the two pieces of catch being arranged in the right-hand member of described bidirectional helical bar is fixed on described bidirectional helical bar, another block is fixed on the bearing of right-hand member, and both ends of the surface relative between two pieces of catch of described right-hand member are fixing with the two ends of spring respectively to be connected;Described movable external gear is fixed on described bidirectional helical bar, and described fixing internal tooth is fixed on the major arc hole section inwall of the horizontal through hole of described crossbeam and is meshed with described movable external gear.

Further, the tooth on described movable external gear and fixing internal tooth is fine module gear tooth, and namely its modulus is less than or equal to 1mm, and described fixing internal tooth only has 13 teeth.

Further, the transverse tooth thickness of the tooth on described movable external gear and fixing internal tooth is equal to the pitch of the screw thread on described bidirectional helical bar.

Further, described cantilever hooks includes Π type block and ratchet, it is arranged with a pair ratchet between two vertical side panels of described Π type block, described ratchet is fixed in a rotating shaft, described rotating shaft, through two vertical side panels of described Π type block, described rotating shaft is also fixed with rectangle stick normal thereto.

Further, described left cantilever is all connected with an outer cantilever lever with the threaded top of right cantilever, described outer cantilever lever includes a rectangular block, and the vertical plane of described rectangular block is arranged with two row's rectangular teeths, and the vertical upper surface of described rectangular teeth offers through horizontal groove;Being additionally provided with interior cantilever lever in described outer cantilever lever, described interior cantilever lever is T-shaped shape, and the two ends of its upper horizontal transverse slat are embedded in described horizontal groove, and its vertical plate is embedded in the space between described two row's rectangular teeths, and described interior cantilever lever bottom is connected with described cantilever hooks.

Beneficial effects of the present invention: parts are carried out clamping or dismounting by the grip of two cantilevers and the top power the two opposition of a threaded mandrel by the present invention, the violence dismounting of the parts such as most bearing can be prevented effectively from, effectively ensure the quality of equipment and parts.Further, the cantilever spacing distance of the present invention is adjustable, and threaded mandrel is movable up and down, the equipment such as the bigger bearing of size range, hermetic container can be carried out clamping, it is applicable to the clamping of the pieces of equipment with complex surface by the angle of ratchet adjustable cantilever hooks simultaneously, applied widely.The present invention has many beneficial effects, is all described explanation, has good economic worth and social benefit in description specific embodiment.

Accompanying drawing explanation

Fig. 1 is a kind of conventional bearing scheme of installation.

Fig. 2 is the clamping pressure bearing and seal detection schematic diagram of a kind of container.

Fig. 3 is present configuration schematic diagram.

Fig. 4 is the A A sectional view in Fig. 3.

Fig. 5 is threaded mandrel is upper ejector pin and the present configuration schematic diagram of screw thread lower push rod two-segment type.

Fig. 6 is the sectional schematic diagram of upper ejector pin and lower push rod junction.

Fig. 7 is the end view of the binding end of upper ejector pin.

Fig. 8 is the end view of the binding end of lower push rod.

Fig. 9 is the present configuration schematic diagram being provided with rotation preventive mechanism and ratchet.

Figure 10 is the partial enlarged view at the I place in Fig. 9.

Figure 11 is the partial enlarged view at II place in Fig. 9.

Figure 12 is the cantilever lever partial structurtes schematic diagram being made up of outer cantilever lever and interior cantilever lever.

Figure 13 is the A0 A0 sectional view of Figure 12.

Figure 14 is right angle cantilever hooks mounting structure schematic diagram in opposite directions.

Figure 15 is the opposing mounting structure schematic diagram of right angle cantilever hooks.

Figure 16 is the mounting structure schematic diagram in opposite directions of the cantilever hooks with ratchet.

Figure 17 is the opposing mounting structure schematic diagram of the cantilever hooks with ratchet.

Element numbers illustrates: crossbeam 1, bidirectional helical bar 2, threaded mandrel 3, bearing 4, bearing (ball) cover 5, cantilever 6, compression spring 7, first fixing internal tooth 8, first movable external gear 9, first spring 10, first catch 11, second catch 12, second spring 13, second movable external gear 14, second fixing internal tooth 15, horizontal through hole 101, horizontal slots 102, upper ejector pin 301, screw thread lower push rod 302, cantilever hooks 601, ratchet 602, outer cantilever lever 603, interior cantilever lever 604, rectangular teeth 605, horizontal groove 606, major arc hole section 10101, rectangular opening section 10102, arc stick 30101, arc boss 30201, rectangle stick 60101, ratchet 60102, Π type block 60103.

Detailed description of the invention

By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily.

Below in conjunction with drawings and Examples, the invention will be further described:

As it is shown on figure 3, a kind of multi-functional clamping provision for disengagement, including crossbeam 1, bidirectional helical bar 2, threaded mandrel 3 and cantilever 6.Described crossbeam 1 is a cylinder girder steel, is provided with a horizontal through hole 101 in inside;On the downside of the cylinder of crossbeam 1, it is additionally provided with two horizontal slots 102 symmetrical about the vertical center line of crossbeam 1 extending through described crossbeam 1 both ends of the surface, and described horizontal slots 102 is positioned at the underface of described horizontal through hole 101.The right and left on described bidirectional helical bar 2 is arranged with screw thread reversely with each other, its left side is provided with left hand thread, the right is provided with right-handed thread, described left hand thread is identical with right-handed thread other parameters except rotation direction, for ease of turning bidirectional helical bar 2, also it is additionally provided with a handwheel at the right-hand member of bidirectional helical bar 2;Described bidirectional helical bar 2 is positioned at the horizontal through hole 101 of described crossbeam 1 and freely rotatable, for making rotation more flexible, also in horizontal through hole 101, it is respectively arranged at two ends with bearing 4, one piece of bearing (ball) cover 5 it is equipped with outside each bearing 4, outer ring for axial restraint bearing 4, the two ends, left and right of bidirectional helical bar 2 are equipped with the shaft shoulder, and bearing 4 is just located at the light shaft part on the bidirectional helical bar 2 between bearing (ball) cover 5 and the above-mentioned shaft shoulder.Described threaded mandrel 3 passes vertically through the centre position of described crossbeam 1 and bidirectional helical bar 2, and is provided with, on the lower half sector hole of the vertically perforation between crossbeam 1, the female thread matched with threaded mandrel 3, makes threaded mandrel 3 and described crossbeam 1 thread connection.For ease of turning threaded mandrel 3, it is additionally provided with a handwheel on the upper top of threaded mandrel 3, and it is symmetrically arranged on two with two vertical guide rods up and down in the middle of the crossbeam 1, crossbeam 1 is made to become decussate texture, vertical through hole it is provided with in top guide bar, screwed hole it is provided with in lower guide rod, and the vertical through hole of top guide bar and bidirectional helical bar 2 in the middle of perforation all with threaded mandrel 3 matched in clearance, so that threaded mandrel 3 rear flank on insertion crossbeam can be inserted smoothly through bidirectional helical bar 2 in the screwed hole of downside, carry out the spinning in and out operation on vertical direction.nullDescribed cantilever 6 includes being symmetrical in the left cantilever and right cantilever that described threaded mandrel 3 (being namely symmetrical in the vertical center line of crossbeam 1) arranges can slide along the horizontal slots 102 of described crossbeam 1,It implements can various ways,As arranged a horizontal slots 102 with dovetail groove in the downside of crossbeam 1,This dovetail groove breach runs through the downside surface of crossbeam 1 and crossbeam 1 both ends of the surface and communicates with the horizontal through hole 101 in crossbeam 1,Correspondingly the top of cantilever 6 is made the trapezoidal shape matched with dovetail groove,To constitute rail plate,Or take the rail plate that other form of grooves make,Can also is that the form of direct for the first half of cantilever 6 rectangular steel bar,Correspondingly,The breach of horizontal slots 102 also direct rectangular cross section shape,One is welded at cantilever 6 place of the lower outer of horizontal slots 102] type block,] the horizontal block of level and the cantilever 6 of lower section of type block be welded and fixed,In one horizontal rectangular groove of level horizontal block stemple 1 surface configuration of top,Also can realize cantilever 6 to move along the horizontal slots 102 on the downside of described crossbeam 1.Additionally, further respectively have the screw thread matched with the described left and right both sides of bidirectional helical bar 2 on the top of above-mentioned left cantilever and right cantilever and bottom is provided with the hook-shaped cantilever hooks in right angle 601, this cantilever hooks 601 is used for hooking parts with clamping;Left cantilever can be the flat thread screwed mutually with bidirectional helical bar 2 the right and left with the top screw thread of right cantilever, it is alternatively cambered surface screw thread, if cambered surface screw thread, its cambered surface should be parallel with the periphery of bidirectional helical bar 2, and the screw thread ensured on surface each other can screw well.

When installing bearing b as shown in Figure 1, only need to turn the handwheel of bidirectional helical bar 2 right-hand member, the left and right cantilever of cantilever 6 is transferred to by the drive of screw thread pair the both sides of bearing b corresponding end-faces, the right angle cantilever hooks 601 making cantilever 6 bottom hooks the both sides of bearing b inner ring end face, then from crossbeam 1, insert threaded mandrel 3, the handwheel on turn threaded mandrel 3 top makes threaded mandrel 3 withstand the end face center of axle c, then starts slowly to rotate down threaded mandrel 3, is taken out gradually by bearing b.Can realizing the installation of bearing b by same method again to fix, simply now threaded mandrel 3 to withstand the other end of axle c, and left and right cantilever also to hook the other end of bearing b inner ring.Clamping for Fig. 2 is fixed, the then same bottom face both sides that the cantilever hooks 601 of left and right cantilever is hooked container d upper flange interface, withstand the upper surface of container cover e with threaded mandrel 3 simultaneously, container cover e is tightly fixed on container d, the clamping of this kind of situation is fixed and be may be extended for being fixedly clamped of all block parts, the faying face being particularly suited for two parts is plane, and faying face right opposite is also the situation of plane.Axisymmetric parts are disassembled into for clamping, such as the clamping between the plectane of the mounting or dismounting or container cover e etc of above-mentioned bearing b, while withstanding parts symmetrical centre for guarantee threaded mandrel 3, left and right cantilever hooks is respectively symmetrically and hooks parts both sides, realizing uniform and stable power transmission, above-mentioned left and right cantilever should be symmetrical in threaded mandrel 3 and arrange;nullAnd for some eccentric parts,When it does not become axially symmetric structure,Left、Right cantilever should be asymmetric with the both sides distribution of threaded mandrel 3,Now,Left、Right two cantilevers should make corresponding adjustment as the case may be to the distance of threaded mandrel 3,When starting to assemble this multi-functional clamping provision for disengagement,First again another cantilever is arranged on the opposite side of bidirectional helical bar 2 after a wherein cantilever precession or back-out one segment distance,Make a left side、Under right cantilever original state mal-distribution,Owing to left and right cantilever is all synchronized to drive by bidirectional helical bar 2,So after cantilever is screwed into place wherein (by the cantilever hooks end face of left cantilever be screwed to the shaft shoulder with axle c contact time),Bidirectional helical bar 2 just can not be turned again,Correspondingly the position of another cantilever is just fixed,Level interval between the cantilever of left and right is a definite value forever,So should be noted that the horizontal clamping spacing of the parts determining that clamping dismantles in use.

Further, install for simplifying to manufacture, as shown in Figure 4, on the basis of above-mentioned specific embodiment, by rectangular for horizontal slots 102 cross section on the downside of described crossbeam 1;The outline that described horizontal through hole 101 shape of cross section is a major arc and a rectangle is formed by connecting, wherein, the two-end-point of described major arc is connected with the two-end-point of described rectangle the same side respectively, horizontal through hole 101 just can be divided into major arc hole section 10101 and rectangular opening section 10102, bidirectional helical bar 2 is positioned at major arc hole section 10101, rectangular opening section 10102 then communicates with horizontal slots 102, and the step that this rectangular opening section 10102 and this horizontal slots 102 are crossed to form is available for the threaded top of cantilever 6 and supports slip herein above.

Further, for above-mentioned horizontal through hole 101 structure being made up of major arc hole section 10101 and rectangular opening section 10102, install for simplifying manufacture further, correspondingly, described left cantilever all includes the T-shaped cantilever lever being connected with described cantilever hooks 601 with right cantilever, the horizontal cross plate on the top of described T-shaped cantilever lever is positioned at the rectangular opening section 10102 of described horizontal through hole 101, the upper horizontal transverse slat of T-shaped cantilever lever is additionally provided with the screw thread that the screw thread with the described left and right both sides of bidirectional helical bar 2 matches, so as to bidirectional helical bar 2 thread connection.

Further, take out owing to above-mentioned threaded mandrel 3 is required in the perforation in the middle of bidirectional helical bar 2 in use every time, in order to avoid interference the horizontally rotating of bidirectional helical bar 2 when regulating cantilever 6 position;Therefore, on the basis of above-mentioned specific embodiment, as shown in Figure 5, described threaded mandrel 3 is made separable two joint forms by spy, the upper ejector pin 301 identical including outside diameter and screw thread lower push rod 302, wherein, the top of described upper ejector pin 301 is provided with a handwheel, a compression spring 7 it is provided with between handwheel lower surface and the upper outer surface of crossbeam 1, this compression spring 7 is in its natural state by upper ejector pin 301 jack-up, the lower end of upper ejector pin 301 is ejected in the perforation in the middle of bidirectional helical bar 2, it is to avoid horizontally rotating of interference bidirectional helical bar 2.In addition, for ease of the connection power transmission between upper ejector pin 301 and screw thread lower push rod 302, as shown in Fig. 68, the special bottom face at upper ejector pin 301 is provided with blind round hole, described blind round hole inwall is fixed with an arc stick 30101, and the external arc wall of described arc stick 30101 and described blind round hole inwall are fixedly linked;Described screw thread lower push rod 302 is provided with screw thread, its top end face is fixed with an arc boss 30201, the external arc wall of described arc boss 30201 and described blind round hole inwall movable contact, when the bottom face of upper ejector pin 301 and the top end face of screw thread lower push rod 302 combine, arc boss 30201 is located just in the blind round hole of upper ejector pin 301 bottom, and when rotating upper ejector pin 301, the side of arc stick 30101 and the side of arc boss 30201 contact, contact drives power transmission each other.

Further, described arc stick 30101 is identical with the radius of the inside and outside circular arc wall of arc boss 30201, wherein, the radian of arc stick 30101 is π/6, the radian of arc boss 30201 is pi/2, or the radian of arc stick 30101 is pi/2, and the radian of arc boss 30201 is π/6;The radian of arc stick 30101 and arc boss 30201 can also be π/4;Such less radian, be conducive to the connection occlusion between upper and lower two joint push rods, avoid two joint push rods arc stick 30101 and arc boss 30201 when connecting to occur head-on crash to interfere as far as possible, make there are enough misplacement spaces in a circumferential direction between two arc blocks.Therefore, when actual production manufactures, the radian sum of both arc stick 30101 and arc boss 30201 is preferably less than equal to half circular arc, namely radian sum is less than or equal to π, so when upper ejector pin 301 being pressed down on docking occlusion screw thread lower push rod 302, it is easier to pack into the arc boss 30201 on screw thread lower push rod 302 in the blind round hole of screw thread lower push rod 302 bottom, will pass through rotation upper ejector pin 301, make a lateral edges of arc stick 30101 contact with a lateral edges perfection of arc boss 30201, be used for reversing power transmission.

Further, owing to rotating after described bidirectional helical bar 2 regulates the horizontal level of left and right cantilever, bidirectional helical bar 2 just can not be rotated further by, otherwise will the impact adjusted good horizontal level of left and right cantilever, it is therefore necessary to the rotation of restriction bidirectional helical bar 2.For this, as shown in Fig. 9 11, on the basis of above-mentioned specific embodiment, spy is arranged with the rotation preventive mechanism that catch, spring, movable external gear and the fixing internal tooth be made up of circular steel plate form at the two ends, left and right of described bidirectional helical bar 2, its right-hand member is additionally provided with handwheel, the two ends of bidirectional helical bar 2 and bearing inner race matched in clearance, can axial float, described rounded tabs is all enclosed within the two end axles of bidirectional helical bar 2, and with bidirectional helical bar 2 matched in clearance, making catch relatively to slide axially by bidirectional helical bar 2, the external diameter of catch is less than fixed gear tip diameter.Wherein, the first spring 10 being positioned at left side is enclosed within the left end of described bidirectional helical bar 3, the two ends of the first spring 10 are equipped with the first catch 11 being enclosed within actively on bidirectional helical bar 3, one of catch is close to the end face of the bearing of bidirectional helical bar 3 left end, and another block catch is close to the end face of the first movable external gear 9;First movable external gear 9 may be provided at the shaft shoulder position of bidirectional helical bar 2 left end, or directly going out the gear teeth at the cylindrical place rolling cut of the shaft shoulder, the first fixing internal tooth 8 is then fixed on the upside of horizontal through hole 101 inwall of described crossbeam 1 and is meshed with the first movable external gear 9.The right-hand member of bidirectional helical bar 2 is again provided with fixing internal tooth 8 with above-mentioned first respectively, first movable external gear 9, first spring 10, the second of first catch 11 symmetry fixes internal tooth 15, second movable external gear 14, second spring 13, second catch 12, the difference is that the one of catch in two piece of second catch 12 being located at right-hand member must be fixed on described bidirectional helical bar 2, it is welded and fixed such as direct and the second movable external gear 14 end face or directly weld all around is fixed on bidirectional helical bar 2, another block catch then must be fixedly welded on the end face of bearing of right-hand member, and the two ends being positioned at the second spring 13 of right-hand member polish after be welded and fixed with two piece of second relative catch 12 respectively.Certainly, also above-mentioned catch can be not provided with, directly spring is arranged between the bearing of respective end and movable external gear, the two ends of second spring 13 on right side are separately fixed at bearing and the end face of the second movable external gear 14, but owing to bearing dual-side all has certain chamfering radian, spring end face can not have with it good front extruding contact, small spring is easier to cause that spring steel wire is stuck in the gap between bearing face rounding and axle, and when running into the bearing that can not be heated, spring can adopt the mechanical connection manners such as pin to be fixedly connected by catch with bearing.Above-mentioned first spring 10 and the second spring 13 are free state after installing.Regulating a left side, during the horizontal level of right cantilever, first hold the handwheel of bidirectional helical bar 2 right-hand member to turn left gently and push away, now the first spring 10 is compressed, second spring 13 is stretched, after shifting the end onto, movable external gear and fixing internal tooth just no longer engage, and it is offset from each other separation, now can start slowly to rotate bidirectional helical bar 2 to regulate the horizontal level of left and right cantilever, after adjustment puts in place, unclamp hands wheel, under the effect of two ends spring, movable external gear and the engagement of fixing internal tooth reset, bidirectional helical bar 2 is by spline, correspondingly left, right cantilever level position is fixed, make clamping more solid and reliable.

Further, for make as far as possible bidirectional helical bar 2 forward to any position all can spline, namely can realize the engagement of movable external gear and fixing internal tooth in the rotational angle that any one is less, then the number of teeth on movable external gear should be many as much as possible;For the gear of certain diameter, such as standard cylinder gear, its modulus is more little, and the number of teeth is more many;Therefore, the tooth on above-mentioned movable external gear and the tooth on fixing internal tooth are made fine module gear tooth by spy, and namely its modulus m is less than or equal to 1mm, and described fixing internal tooth only has 13 teeth, in order to more rapid and better engage spline.

Further, in order to convenient, limit the rotation of bidirectional helical bar 2 rapidly, to realize a left side better, the position adjustments of right cantilever is fixed, the special transverse tooth thickness by the tooth on described movable external gear and fixing internal tooth makes the form equal to the thread pitch on described bidirectional helical bar 2, the fine thread that screw thread is M20 that such as bidirectional helical bar 2 adopts, its pitch is P=1.5mm, then correspondingly, for standard cylinder gear transverse tooth thickness S=π * m/2=1.5, m=0.955, therefore the modulus standard recommended according to country, m can take 1 or 9, for needing to drive the thicker bidirectional helical bar 2 of relatively great cantilever, its screw thread can adopt odd-pitch screw, bidirectional helical bar 2 processes the P=1.5 not corresponding with diameter or less 1.0, the fine pitch of 0.8 etc.

Further, for expanding the scope of application of the present invention further, cantilever hooks 601 is made to have grapple application widely, on the basis of above-mentioned specific embodiment, as shown in Figure 9, described cantilever hooks 601 is made three parts by spy, mainly include Π type block 60103 ratchet identical with two 60102 and a rectangle stick 60101, it is arranged with a pair ratchet 60102 between two vertical side panels of described Π type block 60103, described ratchet 60102 is each attached in a rotating shaft, and this is identical to turning to of ratchet 60102, two vertical side panels of the described rotating shaft described Π type block 60103 of traverse, described rectangle stick 60101 is just fixed in this rotating shaft, and do one-directional rotation by rotating shaft with ratchet 60102.It should be noted that turning to of two pairs of ratchets set in the cantilever hooks 601 being positioned on left and right cantilever is contrary.In use, if the bottom face of nipped two two pieces is an inclined plane, the angle (namely regulating rectangle stick 60101 in the vertical direction angle) of cantilever hooks 601 then can be regulated by rotating ratchet, compared to the nonadjustable right-angle integrated cantilever hooks structure of rigidity, use more flexibility and reliability, substantially increase the range of application of cantilever hooks 601 so that it is can adapt to the parts of more complex surface and capture.

Further, due in use, it sometimes appear that the situation that cantilever 6 is long or too short, cantilever 6 is long may make threaded mandrel 3 down back-out a very long segment distance, wastes time and energy;Too short, then it is possible that the cantilever hooks 601 of cantilever 6 cannot catch the situation on the surface of parts, causing cannot clamping.For solving the problems referred to above, on the basis of above-mentioned specific embodiment, as shown in Figure 12 13, when making cantilever 6, described left cantilever is all connected with an outer cantilever lever 603 by spy with the threaded top of right cantilever, described outer cantilever lever 603 includes a strip rectangular block, being arranged with the rectangular teeth 605 that two rows are vertically arranged on the vertical plane of described rectangular block, the vertical upper surface of described rectangular teeth 605 offers through horizontal groove 606;Interior cantilever lever 604 it is additionally provided with in described outer cantilever lever 603, described interior cantilever lever 604 is T-shaped shape, the two ends of its T-shaped upper horizontal transverse slat are embedded in described horizontal groove 606, its vertical plate is embedded in the space between described two row's rectangular teeths 605, thus being limited to by interior cantilever lever 604 in horizontal groove and vertical space, described interior cantilever lever 604 bottom is fixedly linked with described cantilever hooks 601 again.In use, interior cantilever lever 604 can be taken out as required, move in the horizontal groove 606 of proper height, reach fast and flexible and regulate the purpose of jib-length.On the other hand, so the benefit of design also resides in and cantilever hooks 601 reversely can be installed and used after being taken out together with cantilever hooks 601 by interior cantilever lever 604, as shown in Figure 14 15, directly by two bills of the right angle cantilever hooks in specific embodiment when mounted by becoming opposing in opposite directions, two right angle cantilever bills are respectively outside bearing, bearing inner race may pass through the axle being fixed on the vice fulcrum as threaded mandrel 3, the installation to bore bearings can be realized (in some assembling, need first to be arranged in bearing saddle bore by bearing, rotating shaft is installed again), for bore bearings dismounting principle too, the mounting or dismounting of the bearing being particularly suited in short tubular shell.And for the cantilever hooks of above-mentioned ratchet 60102 structure, unidirectional torsion load characteristic due to ratchet 60102 itself, as the integrated right-angle cantilever hooks in specific embodiment, self bill reversely can not be installed, but remain on simple when bore bearings is installed, only swap left and right after the interior cantilever lever 604 on both sides need to be taken out together with cantilever hooks 601 and install, as shown in Figure 16 17, the interior cantilever lever on the left side is installed together with the cantilever hooks exchange with ratchet together with the interior cantilever lever of the cantilever hooks with ratchet with the right.

The present invention, applied widely, mounting or dismounting or pinch seal for the parts such as large size bearing or container cover, this multi-functional clamping provision for disengagement manufactured size is likely to corresponding bigger, manual operation has inconvenience more, now then can adopt motor or Driven by Hydraulic Cylinder, can be specifically change the handwheel on bidirectional helical bar 2 and threaded mandrel 3 into gear or belt wheel, this gear or belt wheel are connected with motor or hydraulic cylinder by reduction box, gear or belt wheel transmission is relied on to carry out the position adjustments of cantilever 6 and the compression of threaded mandrel 3 or loosen, to reach the purpose of clamping or dismounting.

Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention.Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art.Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.

Claims (10)

1. a multi-functional clamping provision for disengagement, it is characterised in that: include crossbeam, bidirectional helical bar, threaded mandrel and cantilever;It is provided with horizontal through hole inside described crossbeam, on the downside of it, is provided with through the horizontal slots of described crossbeam both ends of the surface, and described horizontal slots is positioned at the underface of described horizontal through hole;The right and left on described bidirectional helical bar is equipped with screw thread reversely with each other, and described bidirectional helical bar is positioned at the horizontal through hole of described crossbeam;Described threaded mandrel passes vertically through described crossbeam and bidirectional helical bar, and with described crossbeam thread connection;Described cantilever includes being positioned at the left cantilever that can slide along described horizontal slots of described threaded mandrel both sides and right cantilever, and the top of described left cantilever and right cantilever is equipped with hook-shaped cantilever hooks with described bidirectional helical bar thread connection and bottom respectively.
2. multi-functional clamping provision for disengagement according to claim 1, it is characterised in that: described horizontal slots cross section is rectangle;The outline that the shape of cross section of described horizontal through hole is a major arc and a rectangle is formed by connecting, described horizontal through hole is divided into major arc hole section and rectangular opening section two parts, wherein, the two-end-point of described major arc is connected with the two-end-point of described rectangle the same side respectively, and described rectangular opening section vertically communicates with described horizontal slots.
3. multi-functional clamping provision for disengagement according to claim 2, it is characterized in that: described left cantilever all includes the T-shaped cantilever lever being connected with described cantilever hooks with right cantilever, the upper horizontal transverse slat of described T-shaped cantilever lever is positioned at the rectangular opening section of described horizontal through hole, and is additionally provided with the screw thread matched with the described left and right both sides of bidirectional helical bar on described upper horizontal transverse slat.
4. multi-functional clamping provision for disengagement according to claim 1, it is characterised in that: described threaded mandrel includes upper ejector pin and screw thread lower push rod;The top of described upper ejector pin is provided with handwheel, is provided with compression spring between described handwheel and described crossbeam;The bottom face of described upper ejector pin is provided with blind round hole, and described blind round hole inwall is fixed with an arc stick, and the external arc wall of described arc stick and described blind round hole inwall are fixedly linked;Described screw thread lower push rod is provided with screw thread, and its top end face is fixed with an arc boss, the external arc wall of described arc boss and described blind round hole inwall movable contact.
5. multi-functional clamping provision for disengagement according to claim 4, it is characterised in that: described arc stick is all identical with the radius of the inside and outside circular arc wall of arc boss, and the radian sum of the two is less than or equal to π.
6. multi-functional clamping provision for disengagement according to claim 1, it is characterised in that: the two ends, left and right of described bidirectional helical bar are arranged with the rotation preventive mechanism being made up of catch, spring, movable external gear and fixing internal tooth, and its right-hand member is additionally provided with handwheel;Described spring housing is on described bidirectional helical bar, its two ends are equipped with the catch being enclosed within described bidirectional helical bar, described catch and described bidirectional helical bar matched in clearance, wherein, one piece of the two pieces of catch being arranged in the right-hand member of described bidirectional helical bar is fixed on described bidirectional helical bar, another block is fixed on the bearing of right-hand member, and both ends of the surface relative between two pieces of catch of described right-hand member are fixing with the two ends of spring respectively to be connected;Described movable external gear is fixed on described bidirectional helical bar, and described fixing internal tooth is fixed on the major arc hole section inwall of the horizontal through hole of described crossbeam and is meshed with described movable external gear.
7. multi-functional clamping provision for disengagement according to claim 6, it is characterised in that: the tooth on described movable external gear and fixing internal tooth is fine module gear tooth, and namely its modulus is less than or equal to 1mm, and described fixing internal tooth only has 13 teeth.
8. multi-functional clamping provision for disengagement according to claim 7, it is characterised in that: the transverse tooth thickness of the tooth on described movable external gear and fixing internal tooth is equal to the pitch of the screw thread on described bidirectional helical bar.
9. multi-functional clamping provision for disengagement according to claim 1, it is characterized in that: described cantilever hooks includes Π type block and ratchet, it is arranged with a pair ratchet between two vertical side panels of described Π type block, described ratchet is fixed in a rotating shaft, described rotating shaft, through two vertical side panels of described Π type block, described rotating shaft is also fixed with rectangle stick normal thereto.
10. multi-functional clamping provision for disengagement according to claim 1 or 9, it is characterized in that: described left cantilever is all connected with an outer cantilever lever with the threaded top of right cantilever, described outer cantilever lever includes a rectangular block, being arranged with two row's rectangular teeths on the vertical plane of described rectangular block, the vertical upper surface of described rectangular teeth offers through horizontal groove;Being additionally provided with interior cantilever lever in described outer cantilever lever, described interior cantilever lever is T-shaped shape, and the two ends of its upper horizontal transverse slat are embedded in described horizontal groove, and its vertical plate is embedded in the space between described two row's rectangular teeths, and described interior cantilever lever bottom is connected with described cantilever hooks.
CN201610255088.0A 2016-04-20 2016-04-20 Multifunctional clamping and dismounting device CN105729386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610255088.0A CN105729386A (en) 2016-04-20 2016-04-20 Multifunctional clamping and dismounting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610255088.0A CN105729386A (en) 2016-04-20 2016-04-20 Multifunctional clamping and dismounting device

Publications (1)

Publication Number Publication Date
CN105729386A true CN105729386A (en) 2016-07-06

Family

ID=56254882

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610255088.0A CN105729386A (en) 2016-04-20 2016-04-20 Multifunctional clamping and dismounting device

Country Status (1)

Country Link
CN (1) CN105729386A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107378820A (en) * 2017-07-25 2017-11-24 陈壮壮 A kind of die fixture
CN108789268A (en) * 2016-09-21 2018-11-13 中航光电科技股份有限公司 A kind of pulling tool
CN108896829A (en) * 2018-07-09 2018-11-27 武汉瑞莱保能源技术有限公司 A kind of Portable type full-automatic measurement of electromagnetic environment equipment
WO2020103768A1 (en) * 2018-11-23 2020-05-28 宁波舜宇光电信息有限公司 Automatic unloading machine, unloading method, and corresponding jig

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2413863Y (en) * 1999-12-18 2001-01-10 康柏森 Assembling/disassembling device for bearing, belt pulley and the like
CN101927472A (en) * 2010-09-01 2010-12-29 青岛港(集团)有限公司 Multifunctional disassembling tool for equipment maintenance
US8347474B2 (en) * 2010-01-27 2013-01-08 A & E Incorporated Brake drum/brake rotor removal tool
CN103878738A (en) * 2014-03-31 2014-06-25 上海理工大学 Dual-purpose three-claw puller
CN204196741U (en) * 2014-09-29 2015-03-11 恒洋汽车座椅(天津)有限公司 A kind of car seat headrest of adjustable angle
CN204292602U (en) * 2014-11-28 2015-04-29 李明海 A kind of angle demodulator, lazyboot's sofa bracket and lazyboot's sofa
CN204397821U (en) * 2014-12-30 2015-06-17 边财浪 One is adjustable draws a yard device
CN204618500U (en) * 2015-04-09 2015-09-09 梁晨 Orthopedic chair

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2413863Y (en) * 1999-12-18 2001-01-10 康柏森 Assembling/disassembling device for bearing, belt pulley and the like
US8347474B2 (en) * 2010-01-27 2013-01-08 A & E Incorporated Brake drum/brake rotor removal tool
CN101927472A (en) * 2010-09-01 2010-12-29 青岛港(集团)有限公司 Multifunctional disassembling tool for equipment maintenance
CN103878738A (en) * 2014-03-31 2014-06-25 上海理工大学 Dual-purpose three-claw puller
CN204196741U (en) * 2014-09-29 2015-03-11 恒洋汽车座椅(天津)有限公司 A kind of car seat headrest of adjustable angle
CN204292602U (en) * 2014-11-28 2015-04-29 李明海 A kind of angle demodulator, lazyboot's sofa bracket and lazyboot's sofa
CN204397821U (en) * 2014-12-30 2015-06-17 边财浪 One is adjustable draws a yard device
CN204618500U (en) * 2015-04-09 2015-09-09 梁晨 Orthopedic chair

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108789268A (en) * 2016-09-21 2018-11-13 中航光电科技股份有限公司 A kind of pulling tool
CN107378820A (en) * 2017-07-25 2017-11-24 陈壮壮 A kind of die fixture
CN107378820B (en) * 2017-07-25 2019-04-02 水越精密模具(昆山)有限公司 A kind of die fixture
CN108896829A (en) * 2018-07-09 2018-11-27 武汉瑞莱保能源技术有限公司 A kind of Portable type full-automatic measurement of electromagnetic environment equipment
WO2020103768A1 (en) * 2018-11-23 2020-05-28 宁波舜宇光电信息有限公司 Automatic unloading machine, unloading method, and corresponding jig

Similar Documents

Publication Publication Date Title
CN102782245B (en) Taper splined connection for drilling rod, sleeve pipe and pipeline
US7416374B2 (en) Fast make-up fatigue resistant rotary shouldered connection
EP0488912B1 (en) Frustoconical screwthread for tubes
US8291795B2 (en) Fastener system with stable engagement and stick fit
CN100423957C (en) Attachment system for the spokes of a bicycle wheel
US7473182B2 (en) Spiral drive fastener with friction engageable surface
CN102438843B (en) Precision axle spindle and wheel end assembly for heavy-duty vehicles
JP3750524B2 (en) Threaded joint for oil well pipe, threading method and threading device thereof
KR20170040393A (en) Tool arrangement
US7731466B2 (en) Thread profile modification for controlled stiffness
EP2122220B1 (en) Threaded tubular connection which is leak-proof under internal and external successive pressure loads
US7635243B2 (en) Load indicating fastener and method of manufacture
CN100497107C (en) Cap
EP0707133B1 (en) Threaded joint for pipes
JP2013511672A (en) Threaded connection
US8197170B2 (en) Anti-cross threading screw
CN103502660B (en) Blind operated anchor bolt
CN101694255A (en) Fitting for taper screw cap
US8382415B1 (en) Rapid-engaging and positive-locking threaded configuration
JP5670592B2 (en) Pipe repair clamp
JP2013524116A (en) Improved seal between pipes
CN200942446Y (en) Inner support for processing special steel pipe button
DE60128687T2 (en) Threaded connection with reinforced stop
CN103644187A (en) Rivet nut or rivet bolt and combination of a rivet nut or a rivet bolt with a sheet metal part
WO2000022339A1 (en) Integral threaded assembly of two metal tubes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160706