CN201685082U

CN201685082U - Large-stroke adjustable four-column press-mounting mechanism

Info

Publication number: CN201685082U
Application number: CN2010202223196U
Authority: CN
Inventors: 付代勤; 王明选; 许文; 张友山; 张玮; 王树金; 孔德瑜
Original assignee: HEFEI PRESSURE MACHINERY CO Ltd
Current assignee: HEFEI PRESSURE MACHINERY CO Ltd
Priority date: 2010-06-03
Filing date: 2010-06-03
Publication date: 2010-12-29
Anticipated expiration: 2020-06-03

Abstract

The utility model discloses a large-stroke adjustable four-column press-mounting mechanism, a motor arranged on a movable workbench is used for driving a worm to rotate, the worm is used for driving a turbine to go forward side by side and further driving nuts to move vertically along upright columns provided with external threads, and the nuts are further used for driving the movable workbench to move vertically along the upright column. The large-stroke adjustable four-column press-mounting mechanism changes the rotary motion of the worm to the vertical motion of the nuts along the upright columns, thereby leading the vertical movement stroke of the movable workbench to be unrestricted and realizing the press-mounting processing of a long workpiece. The large-stroke adjustable four-column press-mounting mechanism has single driving source, high synchronization accuracy, large driving torque, large stroke of the movable workbench and a wider application range.

Description

Big stroke adjustment formula four post press-loading devices

Technical field:

The utility model relates to a kind of big stroke adjustment formula four post press-loading devices, specifically can be applicable to press-fiting of the big parts assembling of automobile, plant equipment assembling, large-size machine lamination etc., can satisfy the requirement that press-fits of different length workpiece.

Background technology:

Present most four-column hydraulic press, its structure as shown in Figure 1, the stationary work-table 1 that comprises the below, the top fixed station or be referred to as to put the beams in place 2, stationary work-table 1 has four root posts 5 to be connected between 2 with putting the beams in place, upper beam is furnished with hydraulic jack, its expansion link 3 is fixedly connected with a movable table 4, movable table is at stationary work-table 1 and to put the beams in place between 2 with four root posts be that lead moves up and down, workpiece is press-fited between stationary work-table 1 and movable table 4, its defective is: put the beams in place to fixed, therefore the stroke of movable table is confined in the stroke range of oil cylinder expansion link, therefore can not satisfy the technological requirement that some farm labourer's part press-fits, as motor, press-fiting of the long stator silicon steel sheet of immersible pump.

Summary of the invention:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of big stroke adjustment formula four post press-loading devices, can satisfy the requirement that press-fits of different length workpiece.

The utility model technical solution problem adopts following technical scheme:

Big stroke adjustment formula four post press-loading devices comprise the stationary work-table of bottom and the movable table on top, are connected with four root posts between described stationary work-table and the movable table, and described four root posts are provided with external screw thread, mate on each column to be socketed with nut; Be installed with motor at described active operation countertop middle part, the both sides of described motor are respectively equipped with worm screw, each described worm screw is parallel to the output shaft of motor and is driven by described output shaft, the two ends of each described worm screw are provided with the turbine by worm drive, and the corresponding coaxial fixed cover of each described turbine is loaded on described each nut periphery; The bracing frame of described each worm screw is fixedly arranged on the described movable table, and is installed with the limited block that extends to each described nut upper and lower end face on the movable table.

Design feature of the present utility model also is:

Fixed cover is equipped with gear on described each worm screw, described gear and the transition gear that is arranged on the movable table mesh, fixed cover is equipped with output shaft gear on the motor output shaft, output shaft gear and the engagement of described transition gear, the rotating shaft two ends of transition gear are to be fixedly arranged on the bearings on the described movable table.

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

1, movable table of the present utility model is by driven by motor worm screw worm gear drive mechanism, turbine rotates synchronously with the nut that is sleeved on the column, change rotatablely moving of worm screw into nut moving up and down along column, can make movable table to move up and down stroke unrestricted, realized the processing that press-fits to farm labourer's part.2, the utility model drive source is single, synchronization accuracy is high, driving moment is big, the stroke of movable table is big, and range of application is wider.3, features simple structure, cost are low.

Description of drawings:

Fig. 1 is the structural representation of existing four-column hydraulic press; Fig. 2 is plan structure figure of the present utility model; Fig. 3 is main TV structure figure of the present utility model.

Number in the figure: 1 stationary work-table, 2 put the beams in place 3 expansion links, 4 movable tables, 5 columns, 6 motor output shafts, 7 output shaft gears, 8 transition gears, 9 worm screws, 10 gears, 11 turbines, 12 nuts, 13 limited blocks, motor 14.

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

The specific embodiment;

Embodiment: in conjunction with Fig. 3, present embodiment four post press-loading devices, movable table 4 upper and lower displacement strokes are big, can be applicable to press-fiting of the big parts assembling of automobile, plant equipment assembling, large-size machine lamination etc.In conjunction with Fig. 2, end face middle part at movable table 4 is installed with motor 14, fixed cover is equipped with output shaft gear 7 on the motor output shaft 6, mesh with transition gear 8 respectively its both sides, transition gear 8 meshes with the gear 10 that the both sides fixed cover is loaded on the worm screw 9 respectively, thereby driving two worm screws 9 rotates, referring to Fig. 3, the two ends of each scroll bar 9 are respectively arranged with the turbine 11 that is mated, four turbine 11 corresponding coaxial fixed covers are loaded on and drive nut on the periphery of nut 12 and rotate synchronously, four nut correspondences are socketed on four root posts 5 between movable table 4 and the stationary work-table 1, column of the present utility model is different from existing column, and each column is provided with the external screw thread with nut 12 couplings.Shown in Figure 3, be installed with limited block 13 on the movable table, each limited block extends to the place, upper and lower end face of nut 12 respectively.

In specifically being provided with, referring to Fig. 2, the bracing frame 14 of worm screw 9 is fixedly mounted on movable table 4 end faces, and the bearing of adoptable routine cooperates between worm screw and the bracing frame.The rotating shaft two ends of transition gear 8 are all with bearings, and bearing block is fixedly set on the movable table 4.

In the work, workpiece is placed between stationary work-table 1 and the movable table 4, starter motor 14 drives transition gear 8 and rotates also and then drive worm screw 9 rotations, worm screw 9 drives turbine 11 and rotates, because of each turbine is fixedly set on each nut periphery, so four nuts 12 rotate synchronously and move up and down along column 5, nut drives movable table 4 by limited block 13 and moves up and down along column, realizes the processing that press-fits to workpiece.The utility model changes the rotation of worm screw into movable table move up and down, the synchronization accuracy height, and displacement stroke is long, has realized the processing that press-fits to farm labourer's part, and range of application is wider.

Claims

1. big stroke adjustment formula four post press-loading devices, comprise the stationary work-table of bottom and the movable table on top, be connected with four root posts between described stationary work-table and the movable table, it is characterized in that described four root posts are provided with external screw thread, coupling is socketed with nut on each column;

Be installed with motor at described active operation countertop middle part, the both sides of described motor are respectively equipped with worm screw, each described worm screw is parallel to the output shaft of motor and is driven by described output shaft, the two ends of each described worm screw are provided with the turbine by worm drive, and the corresponding coaxial fixed cover of each described turbine is loaded on described each nut periphery;

The bracing frame of described each worm screw is fixedly arranged on the described movable table, and is installed with the limited block that extends to each described nut upper and lower end face on the movable table.

2. big stroke adjustment formula four post press-loading devices according to claim 1, it is characterized in that, fixed cover is equipped with gear on described each worm screw, described gear and the transition gear that is arranged on the movable table mesh, fixed cover is equipped with output shaft gear on the motor output shaft, output shaft gear and the engagement of described transition gear, the rotating shaft two ends of transition gear are to be fixedly arranged on the bearings on the described movable table.