CN114029886A - Guide rail type clamping device with bidirectional screw pair - Google Patents

Guide rail type clamping device with bidirectional screw pair Download PDF

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Publication number
CN114029886A
CN114029886A CN202111332300.6A CN202111332300A CN114029886A CN 114029886 A CN114029886 A CN 114029886A CN 202111332300 A CN202111332300 A CN 202111332300A CN 114029886 A CN114029886 A CN 114029886A
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CN
China
Prior art keywords
clamping
protective cover
horizontal frame
bidirectional screw
gasket
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CN202111332300.6A
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Chinese (zh)
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CN114029886B (en
Inventor
梁强
李福强
韦金钰
文竞雄
李亚生
闵新亚
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Xuzhou XCMG Hydraulics Co Ltd
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Xuzhou XCMG Hydraulics Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02—Assembly jigs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention relates to the technical field of vertical assembly and disassembly of oil cylinders, in particular to a guide rail type clamping device with a bidirectional screw pair. The clamping guide rail is fixed on the inner sides of two transverse edges of the horizontal frame; the two longitudinal V-shaped clamping beams are oppositely arranged, and two ends of each V-shaped clamping beam are connected with the clamping guide rails on two sides in a sliding manner; the inner side of each clamping guide rail is provided with a bidirectional screw, and two ends of the bidirectional screw are correspondingly connected with the longitudinal edges at two sides of the horizontal frame through screw fixing seats; the bidirectional screw penetrates through the V-shaped clamping cross beam, and the bidirectional screw is in floating connection with the V-shaped clamping cross beam through the nut floating seat. The invention has simple and compact structure, reliable use, strong bearing capacity and low manufacturing cost, can meet the requirements of technological characteristics of vertical assembly, disassembly and positioning, clamping and locking, prevention of toppling and the like of oil cylinders of various products and specifications, and has better universality.

Description

Guide rail type clamping device with bidirectional screw pair
Technical Field
The invention relates to the technical field of vertical assembly and disassembly of oil cylinders, in particular to a guide rail type clamping device with a bidirectional screw pair.
Background
The engineering hydraulic oil cylinder has the characteristics of more types of lengths and diameter specification ranges, and a sinking pit is usually adopted for vertical assembling and disassembling operation of the oil cylinder of a special-shaped product at present. The conventional technology is difficult to adapt to the change of the length and diameter specifications of the product oil cylinder, the adjusting process is complicated, the efficiency is low, the technological characteristic requirements of convenient adjustment and positioning, positioning and clamping, clamping and locking, toppling prevention and the like during assembling and disassembling of batch product oil cylinders of various types and specifications cannot be met, and potential safety hazards exist in the operation process.
Chinese patent discloses a clamping device (CN 209698933U) for hydro-cylinder dismouting, comprising a frame body, the central point of support body puts and is equipped with the accommodation hole that is used for holding the circular base of treating the dismouting hydro-cylinder, what just be located the symmetrical left briquetting and the right briquetting that are equipped with in both sides of accommodation hole on the support body, left side briquetting is connected with the tight hydro-cylinder of clamp, and presss from both sides tight hydro-cylinder and promote left briquetting and slide along the direction that is close to the accommodation hole, the end-to-end connection of right briquetting and lead screw, and lead screw promotion right briquetting slides along the direction that is close to the accommodation hole. The utility model discloses a through the control of pressing from both sides tight hydro-cylinder, lead screw, will treat dismouting hydro-cylinder centre gripping between left briquetting and right briquetting to reach fixed purpose.
The disadvantages of the prior art are as follows:
1. the vertical type oil cylinder is not suitable for vertical assembly of a large oil cylinder and is difficult to adapt to the length change of the oil cylinder of a product;
2. when the screw rod is adopted to transmit power, the V-shaped clamping blocks on the two sides are difficult to effectively clamp the cylinder body due to the error between the center of the vertical oil cylinder and the clamping blocks, and the screw rod is easily blocked after the V-shaped clamping blocks are subjected to unbalance loading and cannot stably transmit power.
Disclosure of Invention
In order to solve the technical problem, the invention provides a guide rail type clamping device of a bidirectional screw pair.
The invention is realized by the following technical scheme: a guide rail type clamping device with a bidirectional screw pair comprises a horizontal frame, wherein clamping guide rails are fixed on the inner sides of two transverse edges of the horizontal frame; the two longitudinal V-shaped clamping beams are oppositely arranged, and two ends of each V-shaped clamping beam are connected with the clamping guide rails on two sides in a sliding manner; the inner side of each clamping guide rail is provided with a bidirectional screw, and two ends of the bidirectional screw are correspondingly connected with the longitudinal edges at two sides of the horizontal frame through screw fixing seats; the bidirectional screw penetrates through the V-shaped clamping cross beam, and the bidirectional screw is in floating connection with the V-shaped clamping cross beam through the nut floating seat.
It further comprises the following steps: the nut floating seat comprises a flange nut with a flange plate on the end surface; the flange nut is connected with the bidirectional screw through threads; counter bores are formed in the periphery of the flange plate, bolts are installed in the counter bores of the flange plate, and the bolts are connected with the V-shaped clamping cross beam through threads; a spherical gasket, a conical gasket and a belleville spring III are sequentially sleeved on the bolt; the spherical gasket abuts against one side of a nut of the bolt, and one side of the spherical gasket, which is close to the conical surface gasket, is a spherical surface; one side of the conical gasket, which is close to the spherical gasket, is a conical surface, and the conical surface of the conical gasket is in matched contact with the spherical surface of the spherical gasket; and the butterfly spring III abuts between the conical surface gasket and the bottom of the counter bore of the flange plate.
The upper side surfaces of two transverse edges of the horizontal frame are fixedly provided with clamping protective cover guide rails; a clamping follow-up protective cover is arranged above each V-shaped clamping cross beam, two ends of each clamping follow-up protective cover are connected with the clamping protective cover guide rails on the corresponding sides in a sliding mode, and the clamping follow-up protective covers are connected with the V-shaped clamping cross beams through bolts; clamping protective covers staggered with the clamping follow-up protective covers are fixed at two ends of the horizontal frame; the clamping follow-up protective cover is lower than the clamping follow-up protective cover, and when the clamping follow-up protective cover moves to the middle position of the horizontal frame, the outer side edge of the clamping follow-up protective cover does not exceed the inner side edge of the clamping follow-up protective cover.
The inner side edge of the clamping protective cover is opposite to the inner side edge of the V-shaped clamping beam up and down, and a V-shaped opening in the inner side edge of the clamping protective cover is larger than a V-shaped opening in the inner side edge of the V-shaped clamping beam.
The end part of one bidirectional screw is connected with a hydraulic motor through a coupling, and the end parts of the two bidirectional screws are connected through a chain and chain wheel set; and a chain sprocket wheel protective cover fixed with the horizontal frame is arranged outside the chain sprocket wheel group.
And stroke limiters II are arranged in the middle and at two ends of the bidirectional screw rod.
And clamping guide rail fixing seats are fixed on the inner sides of two transverse edges of the horizontal frame, and the clamping guide rails are fixed on the clamping guide rail fixing seats.
And a lifting device is arranged below the horizontal frame.
Compared with the prior art, the invention has the beneficial effects that:
1. by adopting the novel nut floating seat, a proper floating space and a proper rotation angle exist in the lateral direction of a fit clearance between the nut floating seat and the V-shaped clamping cross beam, under the action of the belleville spring III, the nut floating seat is kept in a floating positioning state, bears the load of the V-shaped clamping cross beam and can eliminate the offset load in the clamping process, and the clamping stagnation phenomenon in the transmission process of the bidirectional screw pair is prevented;
2. the oil cylinder clamping device has the advantages of simple and compact structure, reliability in use, strong bearing capacity and low manufacturing cost, can meet the requirements of technological characteristics of vertical assembly, disassembly and positioning, clamping and locking, prevention of toppling and the like of oil cylinders of various products with different specifications, and has better universality;
3. the operation adopts hydraulic and remote control modes, the adjustment is convenient and fast, and the efficiency is high;
4. the clamping beam and the protective cover adopt a double-guide-rail and bidirectional screw pair combined guide mode, the clamping and protective devices synchronously move, and the device is stable in operation and reliable in safety protection.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of FIG. 1 with the shields removed;
FIG. 3 is a schematic view of a connection structure of the nut floating seat, the V-shaped clamping cross beam and the two-way screw;
FIG. 4 is an enlarged view at D of FIG. 3;
in the figure: 21 chain sprocket guard; 22 clamping the protective cover; 23 clamping the follow-up protective cover; 24 a hydraulic motor; 25 coupling; 26 a chain sprocket set; 27 a screw fixing seat; 28 a horizontal frame; 29 clamping the guide rail; 30 clamping the shield guide rail; 31 nut floating seats; 31-1 flange; 31-2 flange nuts; 31-3 bolts; 31-4 spherical spacers; 31-5 conical surface gasket; 31-6 of a belleville spring III; a 32V-shaped clamping beam; 33 a bidirectional screw; 34 a stroke limiter II; 35 clamping the guide rail fixing seat.
FIG. 5 is a perspective view of the lifting device;
FIG. 6 is a schematic view of a screw connection structure;
FIG. 7 is an enlarged view at A in FIG. 6;
FIG. 8 is an enlarged view at B in FIG. 6;
FIG. 9 is a schematic view of a guide post connection structure;
FIG. 10 is an enlarged view at C of FIG. 9;
in the figure: 1, a vertical frame; 2, a screw rod; 3 an electric screw lifter; 4 connecting base; 5, a working platform; 6, a stroke limiter I; 7, floating the seat; 7-1 ear plate; 7-2 fixed pins; 7-3 of a spherical sleeve; 8, a guide pillar; 9, guiding the sliding sleeve; 11, a lower floating seat; 11-1 positioning the supporting seat I; 11-2, annular sleeve I; 11-3, a butterfly spring I; 12 a third floating mount; 12-1 positioning a support seat II; 12-2 annular sleeve II; 12-3 belleville springs II.
Detailed Description
The following are specific embodiments of the present invention, and the present invention will be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 and fig. 2, the two-way screw pair rail-type clamping device includes a rectangular horizontal frame 28, clamping guide rail holders 35 are fixed on inner sides of two transverse sides of the horizontal frame 28, and two clamping guide rails 29 are correspondingly fixed on the clamping guide rail holders 35. Two longitudinal V-shaped clamping beams 32 are oppositely arranged, and two ends of the V-shaped clamping beams 32 are slidably connected with the clamping guide rails 29 on two sides. A bidirectional screw 33 is arranged on the inner side of each clamping guide rail 29, and two ends of the bidirectional screw 33 are correspondingly connected with the longitudinal edges on two sides of the horizontal frame 28 through screw fixing seats 27. The bidirectional screw 33 passes through the V-shaped clamping beam 32, and the bidirectional screw 33 is connected with the V-shaped clamping beam 32 in a floating mode through the nut floating seat 31.
The upper sides of two transverse edges of the horizontal frame 28 are fixed with clamping shield guide rails 3. A clamping follow-up shield 23 is arranged above each V-shaped clamping cross beam 32, and two ends of each clamping follow-up shield 23 are slidably connected with the clamping shield guide rails 3 on the corresponding sides. The clamping follow-up protective cover 23 is connected with the V-shaped clamping beam 32 through bolts, the inner side edge of the clamping follow-up protective cover 23 is vertically opposite to the inner side edge of the V-shaped clamping beam 32, and a V-shaped opening of the inner side edge of the clamping follow-up protective cover 23 is slightly larger than that of the inner side edge of the V-shaped clamping beam 32. The clamping protective cover 22 which is staggered with the clamping follow-up protective cover 23 is fixed at two ends of the horizontal frame 28, and the clamping protective cover 22 is lower than the clamping follow-up protective cover 23. When the clamping follow-up shield 23 moves to the middle position of the horizontal frame 28, the outer side edge of the clamping follow-up shield 23 does not exceed the inner side edge of the clamping follow-up shield 22, so that the upper part of the horizontal frame 28 is fully covered, and the safety performance is improved.
The end part of one two-way screw 33 is connected with a hydraulic motor 24 through a coupling 25, and the end parts of the two-way screws 33 are connected through a chain sprocket set 26; the chain sprocket set 26 is covered with a chain sprocket protecting cover 21 fixed with the horizontal frame 28. And stroke limiters II 34 are arranged in the middle and at the two ends of the bidirectional screw 33.
Referring to fig. 3 and 4, the nut floating seat 31 includes a flange nut 31-2 with a flange 31-1 on the end surface, and the flange nut 31-2 is connected with a bidirectional screw 33 through threads. The periphery of the flange plate 31-1 is provided with a counter bore, and the counter bore of the flange plate 31-1 is provided with a bolt 31-3. The bolt 31-3 is in clearance fit with a counter bore of the flange plate 31-1, and the bolt 31-3 is connected with the V-shaped clamping beam 32 through threads. The bolt 31-3 is sequentially sleeved with a spherical gasket 31-4, a conical surface gasket 31-5 and a belleville spring III 31-6, and the spherical gasket 31-4, the conical surface gasket 31-5 and the belleville spring III 31-6 are all positioned in a counter bore of the flange plate 31-1. The spherical gasket 31-4 is abutted against one side of the nut of the bolt 31-3, and one side of the spherical gasket 31-4 close to the conical surface gasket 31-5 is a spherical surface. One side of the conical surface gasket 31-5 close to the spherical surface gasket 31-4 is a conical surface, and the conical surface of the conical surface gasket 31-5 is in fit contact with the spherical surface of the spherical surface gasket 31-4. The belleville spring III 31-6 is propped between the conical surface gasket 31-5 and the bottom of the counter bore of the flange plate 31-1.
Principle of operation
When the product oil cylinder is vertically assembled and disassembled, the hydraulic motor 24 is operated to start forward transmission or reverse rotation, the bidirectional screw 33 is driven to rotate through the chain and chain wheel set 26, the left V-shaped clamping cross beam 32 and the right V-shaped clamping cross beam 32 move in a centering manner to clamp or release in a centering manner along the clamping guide rail 29, the left V-shaped clamping cross beam 32 and the right V-shaped clamping cross beam 32 are adjusted to proper centering positions in a centering manner, the hydraulic motor 24 is operated to stop, the left V-shaped clamping cross beam 32 and the right V-shaped clamping cross beam 32 are in a centering clamping and locking state, and when the left V-shaped clamping cross beam 32 and the right V-shaped clamping cross beam 32 are in a centering clamping state, the hydraulic motor 34 can set a hydraulic pressure maintaining state to maintain stable clamping force;
in the process of clamping and loosening the left and right V-shaped clamping cross beams 32, the nut floating seat 31 is in a floating state; the bolt 31-3 compresses the flange nut 31-2 through the belleville spring III 31-6, the conical surface gasket 31-5 and the spherical surface gasket 31-4, a proper floating space and a proper rotation angle exist in the side direction of a fit clearance between the flange nut 31-2 and the V-shaped clamping cross beam 32, under the action of the belleville spring III 31-6, the flange nut 31-2 is kept in a floating positioning state, the load of the V-shaped clamping cross beam 32 is borne, the offset load in the clamping process can be eliminated, and the clamping stagnation phenomenon in the transmission process of the bidirectional screw 33 is avoided;
travel limiters 34 are respectively arranged at the middle position and the outer side two ends of the horizontal frame 28, and when the left and right V-shaped clamping cross beams 33 move to the middle limit position and the outer side two ends are limited, the hydraulic motor 24 automatically stops, the offside movement is prevented, and the effective protection in the clamping and loosening process is kept;
in the process of clamping and loosening the left and right V-shaped clamping beams 32, the clamping follow-up protective cover 23 and the left and right V-shaped clamping beams 32 move synchronously, under the matching of the clamping follow-up protective cover 23 and the clamping protective cover 22, the assembling and disassembling area of the oil cylinder is kept to form a cover plate for covering a pit, the operation position and the space can be adjusted to be suitable positions, and the operation safety is guaranteed.
The clamping device in the embodiment has the advantages that the whole structure of the device is compact, the functions of quickly adjusting and positioning, clamping and locking, preventing toppling and the like in the working stroke of the clamping device are realized, the requirements of vertical assembling and disassembling process characteristics of oil cylinders of products of various types and specifications are met, and the device has higher device practicability and comprehensive efficiency.
Example two
The clamping device in the first embodiment is used for clamping adjustment of the oil cylinder. In the embodiment, a lifting device is arranged below the horizontal frame 28 and used for lifting adjustment of the oil cylinder.
Referring to fig. 5, two opposite lateral edges of the vertical frame 1 are provided with opposite guide pillars 8, and the upper end and the lower end of each guide pillar 8 are connected with the lateral edge of the vertical frame 1 in a floating manner through a third floating seat 12. Two opposite longitudinal edges of the vertical frame 1 are provided with opposite screw rods 2, and the upper end and the lower end of each screw rod 2 are respectively connected with the longitudinal edges of the vertical frame 1 in a floating manner through an upper floating seat 7 and a lower floating seat 11. The working platform 5 is arranged in the vertical frame 1, two opposite transverse edges of the working platform 5 are fixed with guide sliding sleeves 9, and the guide sliding sleeves 9 are slidably sleeved on the corresponding guide pillars 8. Two opposite longitudinal edges of the working platform 5 are fixed with a connecting seat 4, and an electric screw rod lifter 3 matched with the screw rod 2 is fixed on the connecting seat 4 through a bolt. The upper end and the lower end of the vertical frame 1 are respectively fixed with a stroke limiter I6 matched with the working platform 5.
Referring to fig. 6 to 8, the upper floating seat 7 includes a pair of ear plates 7-1 fixed under the longitudinal edges of the vertical frame 1, the two ear plates 7-1 are provided with fixing pins 7-2, and the fixing pins 7-2 are in clearance fit with the ear plates 7-1. The fixing pin 7-2 is sleeved with a spherical sleeve 7-3, and the circumferential surface of the spherical sleeve 7-3 is a spherical surface. The upper end of the screw rod 2 is provided with a through hole, the through hole at the upper end of the screw rod 2 is sleeved on the spherical sleeve 7-3, and the through hole at the upper end of the screw rod 2 is in clearance fit with the spherical sleeve 7-3.
The lower floating seat 11 comprises a positioning supporting seat I11-1 fixed on the longitudinal edge of the vertical frame 1, and an annular sleeve I11-2 is fixed on the positioning supporting seat I11-1. The lower end of the screw rod 2 is spherical, the lower end of the screw rod 2 is positioned in the annular sleeve I11-2, and the lower end of the screw rod 2 is in clearance fit with the annular sleeve I11-2. A belleville spring I11-3 is arranged between the bottom of the annular sleeve I11-2 and the lower end of the screw rod 2.
Referring to fig. 9 and 10, the third floating seat 12 includes a positioning support base ii 12-1 fixed on the lateral side of the vertical frame 1, and an annular sleeve ii 12-2 is fixed on the positioning support base ii 12-1. The end part of the guide post 8 is spherical, the end part of the guide post 8 is positioned in the annular sleeve II 12-2, and the end part of the guide post 8 is in clearance fit with the annular sleeve II 12-2. And a belleville spring II 12-3 is arranged between the bottom of the annular sleeve II 12-2 and the end surface of the guide post 8.
Principle of operation
The screw rod 2 and the vertical frame 1 are in floating connection;
the floating connection structure at the upper end of the screw rod 2 comprises an ear plate 7-1, a fixed pin 7-2, a spherical sleeve 7-3, the screw rod 2 and the like, wherein the ear plate is in clearance fit with the fixed pin, and the spherical sleeve is in clearance fit with the screw rod;
the lower end floating connection structure of the screw rod 2 comprises a positioning support seat I11-1, an annular sleeve I11-2, a belleville spring I11-3, the screw rod 2 and the like, a spherical gap is formed by matching the positioning support seat I and the screw rod, a proper floating space and a proper rotation angle in the connection side direction of the upper end and the lower end of the screw rod can be kept, under the action of the belleville spring I, the screw rod is kept in a floating positioning state under the condition of bearing load, and the electric screw rod lifter 3 is prevented from being blocked.
The guide post 8 and the vertical frame 1 are connected in a floating positioning way;
the guide post 8 floating connection structure comprises a positioning support seat II 12-1, an annular sleeve II 12-2, a belleville spring II 12-3, a guide post 8 and the like, a spherical gap is formed by the positioning support seat II and the guide post in a matched mode, a proper floating space and a proper rotation angle can be kept in the connection side direction of the upper end and the lower end of the guide post, and the guide post is kept in a floating positioning state under the action of the belleville spring II.
When the product oil cylinder is vertically assembled and disassembled, the electric screw rod lifter 3 is operated to drive the working platform 5 to ascend or descend along the screw rod 2 and the guide post 8, the working platform 5 is adjusted to a proper height, the screw rod lifter 3 is stopped, and the working platform 5 is in a locked state;
in the process of lifting the working platform 5, the screw rod 2 is in a floating state, bears the load of the working platform 5, can eliminate the offset load in the lifting process and prevents the clamping stagnation phenomenon in the transmission process of the screw rod 2 and the electric screw rod lifter 3;
the upper end and the lower end of the vertical frame 1 are respectively provided with a stroke limiter 6, when the working platform 5 ascends to the upper end and the lower end for limiting, the electric screw rod lifter 3 automatically stops, the offside lifting is prevented, and the safety state of the operation process is kept.

Claims (8)

1. A guide rail type clamping device with two-way screw pairs comprises a horizontal frame (28),
the method is characterized in that:
clamping guide rails (29) are fixed on the inner sides of two transverse edges of the horizontal frame (28); the two longitudinal V-shaped clamping beams (32) are oppositely arranged, and two ends of each V-shaped clamping beam (32) are connected with the clamping guide rails (29) on two sides in a sliding manner;
a bidirectional screw (33) is arranged on the inner side of each clamping guide rail (29), and two ends of the bidirectional screw (33) are correspondingly connected with the longitudinal edges on two sides of the horizontal frame (28) through screw fixing seats (27); the bidirectional screw (33) penetrates through the V-shaped clamping cross beam (32), and the bidirectional screw (33) is in floating connection with the V-shaped clamping cross beam (32) through the nut floating seat (31).
2. The two-way screw pair rail-type clamping device according to claim 1, wherein: the nut floating seat (31) comprises a flange nut (31-2) with a flange plate (31-1) on the end surface; the flange nut (31-2) is connected with the bidirectional screw (33) through threads; counterbores are formed in the periphery of the flange plate (31-1), bolts (31-3) are installed in the counterbores of the flange plate (31-1), and the bolts (31-3) are connected with the V-shaped clamping cross beam (32) through threads; a spherical gasket (31-4), a conical gasket (31-5) and a belleville spring III (31-6) are sequentially sleeved on the bolt (31-3); the spherical gasket (31-4) abuts against one side of a nut of the bolt (31-3), and one side, close to the conical gasket (31-5), of the spherical gasket (31-4) is a spherical surface; one side of the conical surface gasket (31-5) close to the spherical surface gasket (31-4) is a conical surface, and the conical surface of the conical surface gasket (31-5) is in fit contact with the spherical surface of the spherical surface gasket (31-4); the belleville spring III (31-6) is abutted between the conical surface gasket (31-5) and the bottom of the counter bore of the flange plate (31-1).
3. The two-way screw pair rail-type clamping device according to claim 1, wherein: the upper side surfaces of two transverse edges of the horizontal frame (28) are fixed with clamping protective cover guide rails (3); a clamping follow-up protective cover (23) is arranged above each V-shaped clamping cross beam (32), two ends of each clamping follow-up protective cover (23) are connected with the clamping protective cover guide rails (3) on the corresponding sides in a sliding mode, and the clamping follow-up protective covers (23) are connected with the V-shaped clamping cross beams (32) through bolts; clamping protective covers (22) which are staggered with the clamping follow-up protective covers (23) are fixed at two ends of the horizontal frame (28); the clamping follow-up protective cover (23) is lower than the clamping follow-up protective cover (22), and when the clamping follow-up protective cover (23) moves to the middle position of the horizontal frame (28), the outer side edge of the clamping follow-up protective cover (23) does not exceed the inner side edge of the clamping follow-up protective cover (22).
4. The two-way screw pair rail-type clamping device according to claim 3, wherein: the inner side edge of the clamping protective cover (23) is opposite to the inner side edge of the V-shaped clamping beam (32) up and down, and a V-shaped opening in the inner side edge of the clamping protective cover (23) is larger than a V-shaped opening in the inner side edge of the V-shaped clamping beam (32).
5. The two-way screw pair rail-type clamping device according to claim 1, wherein: the end part of one bidirectional screw (33) is connected with a hydraulic motor (24) through a coupling (25), and the end parts of the two bidirectional screws (33) are connected through a chain sprocket set (26); and a chain and sprocket wheel protective cover (21) fixed with the horizontal frame (28) is arranged outside the chain and sprocket wheel group (26).
6. The two-way screw pair rail-type clamping device according to claim 1, wherein: and stroke limiters II (34) are arranged in the middle and at the two ends of the bidirectional screw (33).
7. The two-way screw pair rail-type clamping device according to claim 1, wherein: clamping guide rail fixing seats (35) are fixed on the inner sides of two transverse edges of the horizontal frame (28), and the clamping guide rails (29) are fixed on the clamping guide rail fixing seats (35).
8. The two-way screw pair rail-type clamping device according to claim 1, wherein: and a lifting device is arranged below the horizontal frame (28).
CN202111332300.6A 2021-11-11 2021-11-11 Bidirectional screw pair guide rail type clamping device Active CN114029886B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111332300.6A CN114029886B (en) 2021-11-11 2021-11-11 Bidirectional screw pair guide rail type clamping device

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Application Number Priority Date Filing Date Title
CN202111332300.6A CN114029886B (en) 2021-11-11 2021-11-11 Bidirectional screw pair guide rail type clamping device

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CN114029886B CN114029886B (en) 2023-08-15

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CN211681747U (en) * 2020-03-04 2020-10-16 张鹏 Pipeline anticorrosive coating repairing device for electromechanical equipment maintenance
CN212242167U (en) * 2020-04-03 2020-12-29 深圳市创想三维科技有限公司 Floating guide device for Z shaft of 3D printer
CN212407487U (en) * 2020-07-01 2021-01-26 芜湖伯特利汽车安全系统股份有限公司 Lead screw transmission mechanism
CN213197209U (en) * 2020-09-08 2021-05-14 湖南优德电子科技有限公司 Anti-loosening fastening clamp
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CN213451110U (en) * 2020-10-23 2021-06-15 徐州徐工液压件有限公司 Buffer unit mechanical type centering structure
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