CN2576417Y

CN2576417Y - Hydraulic flat tongs

Info

Publication number: CN2576417Y
Application number: CN 02280894
Authority: CN
Inventors: 葛政兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-05
Filing date: 2002-11-05
Publication date: 2003-10-01
Anticipated expiration: 2012-11-05

Abstract

The utility model relates to a pair of hydraulic flat tongs, which comprise a base, a fixing clamp base, a slide clamp base, a screw rod, a pressure rod, a cylinder assembly, a piston assembly, and a manual oil pressure operating mechanism. The utility model is characterized in that the manual oil pressure operating mechanism comprises a clamp appliance sleeve cylinder, a handle, a clutch, a cylinder, a push rod and a manual oil pressure switch sleeve pipe. The back part of the cylinder is scarfed and sheathed in the clamp appliance sleeve cylinder. The front part of cylinder is sheathed and fixed on the back part of a cylinder body. The back ends of the clamp appliance sleeve cylinder and the cylinder are respectively provided with back end covers, wherein, the central position of a back end cover of the clamp appliance sleeve cylinder is provided with a jack. The central position of a back end cover of the cylinder is provided with a threaded hole. The front part of the push rod is inserted into a through hole of the back part of the cylinder body. The back part is backwards penetrated through the threaded hole of the back end cover of the cylinder. The penetrating end is locked and connected to the back end cover of the clamp appliance sleeve cylinder. The clutch is arranged on the push rod. The manual oil pressure switch sleeve pipe is sheathed on a cylinder surface with an identical diameter formed by the back part of the cylinder body and the front part of the cylinder together. The utility model shortens clamping time, enhances clamping efficiency and operating safety, and lightens labor intensity with labor saving operation.

Description

The hydraulic pressure flat-nose pliers

(1) technical field

The utility model relates to a kind of clipping instrument, particularly relates to a kind of hydraulic pressure flat-nose pliers.

(2) technical background

Vice is the machining machine and tool that manufacturing industry is generally used, and its occupation mode normally rotates screw rod by the telekinesis handwheel, and the drive holder clamps workpiece or unclamps, and it is slow that the traditional vice of this kind has service speed, clamps efficient and hangs down shortcomings such as reaching poor stability.For this reason; someone creates a kind of hydraulic type vice; this kind oil pressure vice mainly is the unlatching when utilizing the strength of oil pressure to reach the vice holding workpiece; closed action; improve the shortcoming that traditional vice uses to reach; but; because this kind vice unreasonable on structural design; can be efficient during use and safe on puzzlement, its main cause be the holder of existing oil pressure vice when unlatching, the outermost end that must move to vice is located; the holder that also is about to the oil pressure vice is opened into maximum; and the space of holder displacement can't be set at the big small distance that cooperates gripping object, so add man-hour in a large number, usually cause the waste on the time efficiency; moreover; when the workpiece of desire processing hour, regular meeting can't keep certain home and posture because holder opens big, and then crushes accidentally; in addition; because the design of the hydraulic operating mechanism of this kind oil pressure vice is unreasonable, and is when shaking handle, often very painstaking; labour intensity is big, and necessity of improvement is arranged in fact.

(3) summary of the invention

Technical problem to be solved in the utility model provide a kind of easy to operate, clamping speed is fast, and can realize the hydraulic pressure flat-nose pliers that hand and oil pressure secondary clamp.

The technical solution adopted in the utility model is: the hydraulic pressure flat-nose pliers comprises base, fixedly holder, slip holder, screw mandrel, depression bar, push rod, cylinder component, piston group and manual hydraulic operation mechanism.Described base is provided with two relative slide rails, described fixedly holder is fixed on the front portion of base, described slip holder is nested on two slide rails of base, and can be on slide rail move left and right, the front portion of slip holder is a slide block, there is a chamber at its rear portion, the cylinder that described piston component pivot fits over described cylinder component is indoor, the rear portion of piston is provided with the fluid chamber, its front portion is provided with spring housing, the front portion of cylinder body is provided with internal thread, the center of cylinder body rear portion entity portion is provided with a through hole that connects with the cylinder chamber, described screw rod is the cavity screw rod, it is indoor that its rear end is screwed into cylinder, its anterior level is plugged in the chamber at described slip holder rear portion, and be screwed with a guide screw seat that is installed in this chamber, the porch that is positioned at described chamber on the screw rod is nested with a block, block is fixed on the rear end face of slip holder, described depression bar is located in the cavity of described screw rod, and its front end passes screw rod, it is indoor that cylinder is inserted in its rear end, and compress spring by one and replace on piston, its structural feature is described manual hydraulic operation mechanism, comprise chuck sleeve, handle, clutch, cylinder, push rod and manual oil pressure switch sleeve pipe, the rear portion of described sleeve pipe is nested in the described tool sleeve, its front portion is fixed in the rear portion of cylinder body, the rear end of described chuck sleeve and the rear end of described sleeve pipe are respectively equipped with end cap, wherein, the center of chuck sleeve rear end cap is provided with the jack that cooperates with handle, and the center of the rear end cap of cylinder is provided with screw, described push rod is located in the described cylinder, in the through hole at its anterior insertion cylinder body rear portion, there is a thread segment at its rear portion, this thread segment passes the screw of cylinder rear end cap backward, and be screwed with screw, its traversing through end interlocking is on the rear end cap of chuck sleeve, described clutch device is located in the sleeve near on the push rod at rear end cap place, described manual oil pressure conversion sleeve pipe box is put on a face of the common same diameter that forms of the anterior institute of cylinder body rear portion and cylinder, one side of described base is provided with several locating holes, and the slip holder can insert in the locating hole on the described base by a backstay and be located.

On the tube face of above-mentioned cylinder leading section the groove that shows the clamping force degree is arranged.

One sidetracking of above-mentioned base is provided with a plurality of locating holes, and the slip holder can insert in the described locating hole by a positioning rod and be located.

The utility model compared with prior art, because the side at base offers several locating holes, thereby the slip holder can be moved to the position of matching with holding workpiece in advance, and then clamped by manual oil pressure clamp mechanism, thereby shortened clamping time, improved clamping efficient, particularly hour in the holding workpiece of desire processing, can can't not keep certain home, and then improve the security of operation because the slip holder opens big.In addition because thereby manual hydraulic operation of the present utility model mechanism has manual clamping and oil takes by force and clamp two kinds of functions and realized that the workpiece secondary clamps, the utility model further advantages are when the rotary handle supercharging, only need very little power just can workpiece be clamped by oil pressure, rapid operation has alleviated labour intensity.

(4) description of drawings

Fig. 1 is a schematic appearance of the present utility model.Fig. 2 is the stereogram of the utility model slip holder.Fig. 3 is the stereogram of the manual hydraulic operation of the utility model mechanism.Fig. 4 is the structural representation of the manual hydraulic operation of the utility model mechanism.

(5) specific embodiment

As depicted in figs. 1 and 2, the hydraulic pressure flat-nose pliers, comprise base 1, fixedly holder 2, slip holder 3, screw rod 4, depression bar 5, oil cylinder 7, piston 8 and manual hydraulic operation mechanism, wherein manual hydraulic operation mechanism, mainly by chuck sleeve 9, handle 10, clutch 11, cylinder 12 and push rod 13 are formed, the rear end of chuck sleeve 9 and cylinder 12 is fixed with

rear end cap

14 and 15 respectively, wherein rear end cap 14 centers of chuck sleeve 9 are provided with inner hexagonal hole 16, insert for handle 10, fix an axle sleeve 17 near end caps in the chuck sleeve 9, the center of cylinder 12 rear end caps is provided with a screw 18, the front portion of cylinder 12 is provided with internal thread 19, the rear portion of cylinder 12 is nested in the chuck sleeve 9, and push rod 13 passes the screw 18 of cylinder 12 rear end caps 15, and screws togather with screw 18, axle sleeve 17 is inserted in the rear end of push rod 13, and fixed by bolt, clutch 11 is installed in the cylinder 12 near on the push rods 13 of rear end cap 15, and the front threads of cylinder 12 is connected the rear portion of cylinder body and is fixed by screw.

Be installed with two relative slide rails 19 on the base 1, fixedly holder 2 is fixed on the left end of base 1, the bottom of slip holder 3 is nested on two relative slide rails 19, and can about on the slide rail 19, move, the front portion of slip holder 3 is a slide block 20, its rear portion has a chamber 21, piston 8 pivots fit in the oil cylinder 7, there is a fluid chamber 23 at its rear portion, there is spring housing its front portion, oil cylinder 7 cylinder body front portions are provided with internal thread, rearward end for screw rod 4 is screwed into, there is a through hole 25 that connects with cylinder chamber 24 center of oil cylinder 7 cylinder bodies, insert for push rod 13, the front portion of oil cylinder cylinder chambers 7 is provided with internal thread, be screwed in the cylinder 12 behind the rearward end undergauge of oil cylinder 7 cylinder bodies, cylinder body undergauge size is the wall thickness of cylinder 12 just, so that make cylinder body rear portion and cylinder 12 form identical tube face, be nested with a manual oil pressure on this identical tube face and switch sleeve pipe 26, the front portion of oil cylinder cylinder chambers 7 is provided with internal thread, and match by fin and groove, making manual oil pressure switch sleeve pipe 26 can only horizontally slip, and can not rotate, and the left end of cylinder 12 has several recesses 30, and manually oil pressure switching sleeve pipe 26 right-hand members have and corresponding several projections 31 of several recesses, several projections 31 can insert in several recesses 30, it is indoor that the rearward end of screw rod 4 is screwed into the cylinder of oil cylinder 7, and fixed by screw, screw rod 4 is the cavity screw rod, depression bar 5 penetrates in the cavity of screw rod 4, there is a spring eye its rear end, the spring eye of this spring eye and piston 8 front ends is combined to form a spring housing 27, compression spring 28 is housed in the spring housing 27, depression bar 5 is resisted against the front end of piston 8 by compression spring 28, the front end of depression bar 5 passes in the cavity of screw rod 4, the front portion of screw rod 4 is screwed in the screw of a guide screw seat 29, guide screw seat 29 is fixed in the chamber 21 of slip holder 3, on the piston of screw rod 4 rear ends dish type reed 22 is installed.

In order to make slip holder 3 do the position adjustment according to the size of desiring clamping work pieces, be provided with 3 locating holes 32 at a sidetracking of base 1, slip holder 3 can insert in the described locating hole 32 by backstay 33 and be located.

In order to make the operator can know clamping degree to clamping work pieces, mint-mark has the groove 6 that shows the clamping dynamics on the tube face of cylinder.

During manual operation, manual oil pressure is switched sleeve pipe 26 to be moved on the cylinder 12 backward, and several projections that manual oil pressure switches sleeve pipe 26 right-hand members are inserted in several recesses 30 of cylinder left ends, again in the inner hexagonal hole 16 that handle 10 is inserted on chuck sleeve 9 rear end caps 14, turning handle 10, make push rod 13 rotations, this moment, clutch 11 was in the state of closing, and drive cylinder 12 rotates synchronously with push rod 13, and then drive oil cylinder 7 cylinder bodies and screw rod 4 moves forward along guide screw seat 29, the workpiece of desire processing is clamped.

During hydraulic operation, manual oil pressure is switched sleeve pipe 26 to moving forward on the cylinder body, again handle is inserted in the inner hexagonal hole 16 on chuck sleeve 9 rear end caps 14, and knock handle 10 gently towards clamping direction, and unloading clutch 11, rotary handle 10 then, make push rod 13 rotations, at this moment, cylinder 12 does not rotate, and has only chuck sleeve 9 to rotate, and push ahead, make the oil in the oil cylinder 7 produce pressure, move forward, will desire processing work and clamp thereby promote depression bar 5.

Claims

1, the hydraulic pressure flat-nose pliers, comprise base (1), fixing holder (2), slip holder (3), screw rod (4), depression bar (5), cylinder component, piston component and manual hydraulic operation mechanism, described base (1) is provided with two relative slide rails (19), described fixedly holder (2) is fixed on the front portion of base (1), described slip holder (3) is nested on two slide rails (19) of base (1), and can go up move left and right at slide rail (19), the front portion of slip holder (3) is slide block (20), there is a chamber (21) at its rear portion, described piston component pivot fits in the cylinder chamber (24) of described cylinder component, the rear portion of piston (8) is provided with fluid chamber (23), its front portion is provided with spring housing (27), the front portion of cylinder body is provided with internal thread, the center of cylinder body rear portion entity portion is provided with a through hole (25) that connects with cylinder chamber (24), described screw rod (4) is the cavity screw rod, its rear end is screwed in the cylinder chamber (24), its anterior level is plugged in the chamber (21) at described slip holder (3) rear portion, and be screwed with a guide screw seat (29) that is installed in this chamber (21), described depression bar (5) is located in the cavity of described screw rod (4), and its front end passes screw rod (4), insert in the cylinder chamber (24) its rear end, and compress spring (28) by one and replace on piston (8), it is characterized in that: described manual hydraulic operation mechanism, comprise chuck sleeve (9), handle (10), clutch (11), cylinder (12), push rod (13) and manual oil pressure switch sleeve pipe (26), the rear portion of described cylinder (12) is nested in the described chuck sleeve (9), its front portion is fixed in the rear portion of cylinder body, the rear end of the rear end of described chuck sleeve (9) and described cylinder (12) is respectively equipped with rear end cap (14) and (15), wherein, the center of chuck sleeve (9) rear end cap (14) is provided with the jack (16) that cooperates with handle (10), and the center of the rear end cap (15) of cylinder (12) is provided with screw (18), described push rod (13) is located in the described cylinder (12), in the through hole (25) at its anterior insertion cylinder body rear portion, there is a thread segment at its rear portion, this thread segment passes the screw (18) of rear end cap (15) backward, and be screwed with screw (18), its traversing through end interlocking is on the rear end cap (14) of chuck sleeve (9), described clutch device is located on the push rod of locating near rear end cap (15) in the cylinder (12) (13), and described manual oil pressure switches sleeve pipe (26) and is nested with at the cylinder body rear portion on the face with the same diameter of the anterior institute of cylinder (12) common formation.

2, hydraulic pressure flat-nose pliers according to claim 1 is characterized in that the tube of described cylinder leading section has the groove (6) that shows the clamping force degree on the face.

3, hydraulic pressure flat-nose pliers according to claim 1 and 2 is characterized in that a sidetracking of described base (11) is provided with a plurality of locating holes (32), and slip holder (3) can insert in the described locating hole (32) by backstay (33) and be located.

4, hydraulic pressure flat-nose pliers according to claim 1 and 2 is characterized in that the inner hexagonal hole of described jack (16) for matching with handle.