CN200988320Y

CN200988320Y - Hydraulic lifting and fastening mechanism for working table

Info

Publication number: CN200988320Y
Application number: CN 200620165488
Authority: CN
Inventors: 袁隆秀
Original assignee: Hefei Metalforming Machine Tool Co Ltd
Current assignee: Hefei Metalforming Machine Tool Co Ltd
Priority date: 2006-12-12
Filing date: 2006-12-12
Publication date: 2007-12-12
Anticipated expiration: 2016-12-12

Abstract

The utility model relates to a hydraulic lifting and clamping worktable apparatus, which is characterized in that the lifting and clamping apparatus is arranged on the bottom beam but under the roller of the worktable. The driver of the lifting and clamping apparatus is a longitudinally-arranged dual-way piston cylinder utilizing a piston rod for transmission, and the piston rod is arranged at the center plumb line of the roller; a clamping block with the longitudinal profile shaped into a salver is arranged at the end of the rod. The clamping block is equipped with a horizontally impacted and overturned edge at the top border, and supported below a roller by taking the central chase profile as a roller bearing surface. A support board, which is solidly connected with the worktable, is arranged at the bottom of each impacted and overturned edge. The utility model takes advantage of the driving force generated by the piston cylinder for lifting and clamping block up and down, thereby enabling quick and easy in-and-out movement of the worktable, effectively improving the action coordination between the worktable and the main controller.

Description

Workbench hydraulic pressure lift clamp mechanism

Technical field

The utility model relates to lifting clamping cylinder device, more specifically says so and uses the hydraulic press lifting clamping cylinder device that the band workbench in the hydraulic press moves in and out.

Background technology

In the hydraulic press that present known band workbench moves in and out, shift out and fall clamping for the rise of travelling table, be to realize respectively by four lift cylinder and four clamping cylinders of being installed in sill, loosely organized layout complexity, simultaneously, the setting of multi-cylinder causes pipeline and joint amount big, has therefore increased the seepage link of oil circuit.This phenomenon can cause action unreliable, and influences the service life of hydraulic press.

Summary of the invention

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of workbench hydraulic pressure lift clamp mechanism is provided, by adopting combined type to promote the clamping cylinder structure, shift out and fall the seepage link of clamping with the rise that reduces travelling table, save the installation site.

The technical scheme that the utility model technical solution problem is adopted is:

Design feature of the present utility model is below the idler wheel mechanism of workbench, be positioned at the lifting clamp mechanism is set on the sill, promoting clamp mechanism and be with the bidirectional piston cylinder that is vertical setting is driving mechanism, with the piston rod is drive link, piston rod is on the position that overlaps with the center plumb line of roller, rod end at piston rod fixedly installs clamp, the vertical section of clamp is the pallet shape, its upper edge hole tool level is turned up compresses the limit, its central groove surface is the roller wheel bearing face, clamp with its central groove surface support below roller; Be symmetrical arranged bearing plate below two side compression limits, bearing plate and workbench connect firmly.

The utility model, is fixed on workbench on the sill in the mode that compresses under the effect that promotes clamp mechanism by clamp when the workbench operate as normal; When workbench need shift out sill and carries out die change, clamp rose under the effect that promotes clamp mechanism, and drove roller and leave the travelling table clamped position, make travelling table under the drive of reductor light and fast shift out sill.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

The utility model adopts combined type to promote the clamping cylinder device, the function that replaces two cylinders in the original structure by the function of a piston cylinder, dwindle installing space, reduced the seepage link, the rise of travelling table is moved easily and fast with falling clamping, greatly improve the coordination of hydraulic press complete machine.

Description of drawings

Accompanying drawing is the utility model structural representation.

Number in the figure: 1 workbench, 2 rollers, 3 clamps, 4 sills, 5 guiding cushion blocks, 6 positioning sleeves, 7 collision blocks, 8 clamp nuts, 9 piston cylinders, 10 fairleads, 11 piston rods, 12 pistons, 13 nuts, 14 piston oil ducts, 15 piston rod oil ducts, 16 bearing plates, 17 roller shafts, 18 bearings, 19 rise stroke near switch.

Below pass through the specific embodiment, and in conjunction with the accompanying drawings the utility model is further described.

The specific embodiment

Referring to accompanying drawing, below the idler wheel mechanism of workbench 1, be positioned at the lifting clamp mechanism is set on the sill 4, the bidirectional piston cylinder 9 that promotes clamp mechanism and be to be vertical setting is a driving mechanism, with piston rod 11 is drive link, piston rod 11 is on the position that overlaps with the center plumb line of roller 2, rod end at piston rod 11 fixedly installs clamp 3, the vertical section of clamp 3 is the pallet shape, its upper edge hole tool level is turned up compresses the limit, its central groove surface is the roller wheel bearing face, clamp 3 with its central groove surface support below roller 2; Be symmetrical arranged bearing plate 16 below two side compression limits, bearing plate 16 connects firmly with workbench 1.

In concrete the enforcement, move in order to make workbench 1 held stationary, at workbench 1 four groups of idler wheel mechanisms should be set, roller 2 is installed on the roller shaft 17 by pair of bearings 18; The piston cylinder that correspondence is arranged on the sill 4 also is four, clamp 3 provides guiding by the guiding cushion block 5 that is positioned at its periphery, guiding cushion block 5 is fixedly installed on the sill 4, positioning sleeve 6 is connected the bottom of guiding cushion block 5, piston cylinder 9 is two-way cylinder, its end face is provided with clamp nut 8, and fairlead 10 is set in the cylinder; In piston cylinder 9, piston 12 is to be fixed as integral body by nut 13 with piston rod 11, and piston cylinder 9 its rod end chambers are communicated with piston rod oil duct 15, and plunger shaft is communicated with piston oil duct 14.

As shown in the figure, when workbench 1 operate as normal, control system makes hydraulic oil enter rod end chamber from piston rod oil duct 15, and pulling piston rod 11 moves down, piston rod 11 drives clamp 3 and moves down, be pressed on the bearing plate 16 with its two side compressions limit until clamp 3, and this pressure be passed to workbench 1, workbench 1 is positioned on the sill 4 under clamp 3 pressure securely by bearing plate 16.

When workbench 1 need shift out sill 4 and carries out die change, control system makes hydraulic oil enter plunger shaft from piston oil duct 14, and promoting upwards passing of piston rod 11, piston rod 11 thereby drive clamp 3 upwards promote, the pressure that bearing plate 16 breaks away from from clamp 3; Simultaneously, clamp 3 forms supporting with its central groove surface pair roller 2, and makes workbench 1 break away from clamped position by elevator wheel, can shift out sill 4 subsequently with making the workbench light and fast under the drive of workbench reductor.

In addition,, collision block 7 is set, on the relevant position of sill 4, is provided with and rises stroke near switch 19 at the middle part of piston rod 11 in order to realize control to the piston rod raised position.

Claims

1, workbench hydraulic pressure lift clamp mechanism, it is characterized in that idler wheel mechanism below at workbench (1), be positioned on the sill (4) the lifting clamp mechanism is set, described lifting clamp mechanism is to be driving mechanism with the bidirectional piston cylinder (9) that is vertical setting, with piston rod (11) is drive link, described piston rod (11) is on the position that overlaps with the center plumb line of roller (2), rod end at piston rod (11) fixedly installs clamp (3), the vertical section of described clamp (3) is the pallet shape, its upper edge hole tool level is turned up compresses the limit, its central groove surface is the roller wheel bearing face, and clamp (3) is with the below of its central groove surface support in roller (2); Be symmetrical arranged bearing plate (16) below two side compression limits, described bearing plate (16) connects firmly with workbench (1).