CN210733395U

CN210733395U - Passive lifting type high-speed moving workbench of hydraulic machine

Info

Publication number: CN210733395U
Application number: CN201921261202.6U
Authority: CN
Inventors: 熊义; 康佳琪; 刘宁
Original assignee: NANTONG METALFORMING EQUIPMENT CO Ltd
Current assignee: NANTONG METALFORMING EQUIPMENT CO Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-12
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a passive formula high-speed moving table that rises and falls of hydraulic machine mainly includes mobile station, drive arrangement, line rail device etc.. The mobile platform comprises a main bedplate, an end cover, a guide sleeve, a cylindrical guide pin, a dragging side plate, a rack, a spring lifting device, a linear rail slide block and the like; the driving device comprises a servo motor, a speed reducer, a flange, a bearing seat, a transmission shaft, a gear and the like; the line rail device comprises a line rail, a bracket, a shifting-out collision block, a shifting-in collision block and the like. The utility model does not need a driving mechanism and power input specially used for lifting and lowering the movable worktable, simplifies the hydraulic press system, reduces fault points and has energy-saving effect; the utility model discloses frictional resistance is little during the removal, can realize high-speed immigration, shift out and accurate repeated location, saves the latency who plays to rise, falls etc. auxiliary action, has promoted the work efficiency of removal reloading formula hydraulic press greatly.

Description

Passive lifting type high-speed moving workbench of hydraulic machine

Technical Field

The utility model relates to a moving worktable of hydraulic press especially relates to a high-speed moving worktable of hydraulic press, especially a passive formula high-speed moving worktable that rises and falls of hydraulic press.

Background

The moving table of the hydraulic press is used for mounting the lower die and generally only needs to be moved into and out of the frame of the hydraulic press when the die is replaced. The movable workbench descends during pressing so as to be attached to the lower cross beam of the hydraulic machine and is positioned by a positioning pin on the lower cross beam of the hydraulic machine; the mobile workbench is in a lifting state when moving and is supported on the guide rail by the wheels. However, in certain processes the moving table is also used for upper and lower blanks, i.e. the moving table needs to be moved in and out of the hydraulic press frame one round trip for each completed die-forming operation, which requires two difficulties to be solved: 1. the method has the advantages that the running speed of the movable workbench is improved, and the waiting time of auxiliary actions such as descending, lifting and the like is saved as much as possible, so that the working efficiency of the whole hydraulic press is improved; 2. how to realize the accurate repeated positioning of the movable workbench during high-speed and frequent access operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a passive formula high-speed traveling workbench that rises and falls of hydraulic machine need not be used for specially that the traveling workbench rises to rise, the actuating mechanism and the power input who falls, simplifies the hydraulic machine system, reduces the fault point, has energy-conserving effect, can realize high-speed motion and accurate repeated positioning to saved the latency of the supplementary action such as rise to rise, fall, promoted the work efficiency of removal reloading formula hydraulic machine greatly.

The technical scheme of the utility model as follows:

a passive lifting type high-speed moving working table of a hydraulic machine comprises a moving table, a driving device, a linear rail device and the like. The mobile platform comprises a main bedplate, an end cover, a guide sleeve, a cylindrical guide pin, a dragging side plate, a rack, a spring lifting device, a linear rail slide block and the like; the driving device comprises a servo motor, a speed reducer, a flange, a bearing seat, a transmission shaft, a gear and the like; the line rail device comprises a line rail, a bracket, a shifting-out collision block, a shifting-in collision block and the like. The mobile station is supported by a linear rail and is positioned above the lower cross beam of the hydraulic machine; a gear of the driving device is meshed with a rack of the mobile platform, and the mobile platform moves in and out of the hydraulic press frame under the power action of the driving device; the linear rail device is divided into an inner part and an outer part of a hydraulic machine frame, plays roles of supporting and guiding the mobile station, limits the movement of the mobile station within the length range of the linear rail and plays a role of safety protection. An output shaft of a servo motor of the driving device is coaxially connected with an input shaft of the speed reducer and is driven by a key; the output shaft of the reducer is coaxially connected with the transmission shaft and is driven by a key; the servo motor shell is connected with the reducer shell through a flange; the shell of the speed reducer is connected with a bearing seat on the left side through a flange; the two bearing blocks are respectively fixed on the lower cross beam of the hydraulic machine through bolts, and the transmission shaft penetrates through the bearing blocks; the two gears respectively coaxially penetrate through the two sides of the transmission shaft and are in transmission through keys; the whole driving device is fixed on the lower beam of the hydraulic machine through a bearing seat. The bracket of the linear rail device is placed on the front side of the hydraulic machine and is fixedly connected with the lower cross beam of the hydraulic machine; mounting grooves of the linear rails are machined on the upper surfaces of the bracket and the lower cross beam of the hydraulic machine, and the mounting surfaces of the mounting grooves of the same linear rail are aligned; the shifting-out collision block is fixedly arranged at the tail end of the line rail on the bracket; the moving-in collision block is arranged at the tail end of the rear side track of the lower cross beam of the hydraulic machine. The movement and positioning of the mobile station is achieved by controlling the servo motor.

Furthermore, a step through hole is processed on a main table plate of the mobile station, a guide sleeve and an end cover are sequentially arranged in the step through hole from bottom to top, and the end cover is fixed on the main table plate through bolts to prevent sundries from falling into the step through hole; a blind hole is processed on the upper side of the dragging side plate, and a cylindrical guide pin is installed in the blind hole and fixed by a bolt; the guide sleeve is matched with the cylindrical guide pin in a shaft hole, and the guide sleeve is assembled after the cylindrical guide pin is assembled in the installation process, and the guide sleeve and the cylindrical guide pin can move up and down relatively; 2 grooves are processed on the lower side of the dragging side plate, the groove on the edge is used for mounting a rack, the groove close to the inner side is used for mounting a linear rail sliding block, and the rack and the linear rail sliding block are both fixed on the dragging side plate by bolts; the upper side of the dragging side plate is processed with 1 groove, and the spring lifting device is installed in the groove and fixed by bolts. The linear rail sliding block is sleeved in the linear rail, and only one motion freedom degree relative to horizontal translation exists between the linear rail sliding block and the linear rail, so that the side plate is dragged to move only horizontally but not move up and down; the main bedplate is arranged on the upper side of the dragging side plate and supported by a spring lifting device, and the pretightening force of the spring lifting device is slightly larger than the sum of the gravity of the main bedplate, the die, the workpiece and the like and is far smaller than the pressing force of a hydraulic press, so a certain upper and lower gap is formed between the main bedplate and the dragging side plate in a natural state; a supporting step is arranged on the lower side of the main bedplate, a gap is also formed between the lower surface of the supporting step of the main bedplate and the upper surface of the lower cross beam of the hydraulic machine in a natural state, and the gap is smaller than the gap between the main bedplate and the dragging side plate in the natural state; when the hydraulic press presses a workpiece, the spring lifting device is compressed and contracted, the main bedplate moves downwards relative to the dragging side plate, the lower surface of the supporting step of the main bedplate is firstly contacted with the upper surface of the lower cross beam of the hydraulic press, and the gap between the main bedplate and the dragging side plate is reduced but is not contacted, so that the pressing force is finally borne by the lower cross beam of the hydraulic press, and the acting force between the linear rail slide block and the linear rail is about the sum of the gravity of the main bedplate, the die, the workpiece and the like to the maximum extent; the driving device drives the dragging side plate through a gear and a rack, and the dragging side plate transmits dragging force to the main bedplate through the guide sleeve and the cylindrical guide pin; the guide effect between the guide sleeve and the cylindrical guide pin also ensures that only the freedom degree of the up-and-down relative movement between the main bedplate and the dragging side plate can not generate relative dislocation in other directions, thereby ensuring the structural stability of the main bedplate during rapid movement and the alignment precision of the upper die and the lower die.

The utility model has the advantages as follows:

1. the utility model discloses a guide pin bushing and the cylinder pilot pin of joining in marriage the dress are as the structure location and the transmission drags power, have good manufacturing accuracy and structural stability.

2. The utility model discloses a servo motor drive has realized high-speed motion and accurate positioning control, and work efficiency is high.

3. The utility model discloses need not be used for the actuating mechanism that the travelling platform rises to rise, falls and power input specially, simplify the hydraulic press system, reduce the fault point, have energy-conserving effect.

4. The utility model discloses a spring plays to rise the device, has saved the latency who plays to rise, falls etc. auxiliary action, has further promoted work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the mobile station of the present invention.

Fig. 3 is a schematic structural diagram of the driving device of the present invention.

Fig. 4 is a schematic structural diagram of the wire track device of the present invention.

Fig. 5 is a schematic structural view of the main bedplate of the present invention.

Fig. 6 is a schematic structural view of the dragging side plate of the present invention.

In fig. 1: 1-moving table, 2-driving device, 3-linear rail device and 801-hydraulic press lower beam.

In fig. 2: 101-main bedplate, 102-end cover, 103-guide sleeve, 104-cylindrical guide pin, 105-dragging side plate, 106-rack, 107-spring lifting device and 108-linear rail slide block.

In fig. 3: 201-servo motor, 202-reducer, 203-flange, 204-bearing seat, 205-transmission shaft, 206-gear.

In fig. 4: 301-line rail, 302-bracket, 303-moving out collision block, 304-moving in collision block, 801-hydraulic press lower beam.

In fig. 5: 501-T-shaped groove, 502-step through hole and 503-supporting step.

In fig. 6: 601-groove, 602-groove, 603-blind hole, 604-groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, the passive lifting high-speed moving table of the hydraulic machine of the present invention mainly comprises a moving table 1, a driving device 2, a linear rail device 3, etc.

Referring to fig. 2, the moving table 1 includes a main platen 101, an end cap 102, a guide sleeve 103, a cylindrical guide pin 104, a dragging side plate 105, a rack 106, a spring lifter 107, a wire-rail slider 108, and the like.

Referring to fig. 1 and 3, the driving device 2 includes a servo motor 201, a reducer 202, a flange 203, a bearing seat 204, a transmission shaft 205, a gear 206, and the like. An output shaft of a servo motor 201 of the driving device 2 is coaxially connected with an input shaft of a speed reducer 202 and is in transmission through a key; an output shaft of the speed reducer 202 is coaxially coupled with the transmission shaft 205 and is driven by a key; the shell of the servo motor 201 is connected with the shell of the speed reducer 202 through a flange; the shell of the speed reducer 202 is coupled with a bearing seat 204 on the left side through a flange 203; the two bearing blocks 204 are respectively fixed on a lower cross beam 801 of the hydraulic machine through bolts, and the transmission shaft 205 penetrates through the bearing blocks 204; the two gears 206 are respectively coaxially penetrated on two sides of the transmission shaft 205 and are driven by keys; the whole drive device 2 is fixed on a lower cross beam 801 of the hydraulic machine through a bearing seat 204.

Referring to fig. 4, the wire rail device 3 includes a wire rail 301, a bracket 302, a moving-out bump 303, a moving-in bump 304, and the like. The bracket 302 of the linear rail device 3 is placed on the front side of the hydraulic machine and is fixedly connected with a lower cross beam 801 of the hydraulic machine; mounting grooves of the linear rails 301 are machined on the upper surfaces of the bracket 302 and the lower cross beam 801 of the hydraulic machine, and the mounting surfaces of the mounting grooves of the same linear rail 301 are aligned; the shifting-out collision block 303 is fixedly arranged at the tail end of the wire rail 301 on the bracket 302; the moving-in collision block 304 is arranged at the tail end of the rear side track 301 of the lower cross beam 801 of the hydraulic machine.

Referring to fig. 1 to 4, the mobile station 1 is supported by a line rail 301 and is positioned above a lower cross beam 801 of the hydraulic machine; the gear 206 of the driving device 2 is meshed with the rack 106 of the mobile station 1, and the mobile station 1 moves in and out of the hydraulic machine frame under the power action of the driving device 2; the wire-rail device 3 is divided into an inner part and an outer part of a hydraulic press frame, plays roles of supporting and guiding the mobile station 1, limits the movement of the mobile station 1 within the length range of the wire rail 301, and plays a role of safety protection. The movement and positioning of the mobile station 1 is achieved by controlling the servo motor 201.

Referring to fig. 1 to 6, a step through hole 502 is formed in the main platen 101 of the mobile station 1, the guide sleeve 103 and the end cap 102 are sequentially installed in the step through hole 502 from bottom to top, and the end cap 102 is fixed to the main platen 101 by bolts to prevent impurities from falling into the step through hole 502; a blind hole 603 is formed in the upper side of the dragging side plate 105, and the cylindrical guide pin 104 is installed in the blind hole 603 and fixed by a bolt; the guide sleeve 103 is matched with the cylindrical guide pin 104 through a shaft hole, the cylindrical guide pin 104 is firstly installed and then the guide sleeve 103 is installed during installation, and the guide sleeve 103 and the cylindrical guide pin 104 can move up and down relatively; 2

grooves

601 and 602 are processed on the lower side of the dragging side plate 105, the groove 601 at the edge is used for installing the rack 106, the groove 602 close to the inner side is used for installing the linear rail sliding block 108, and the rack 106 and the linear rail sliding block 108 are both fixed on the dragging side plate 105 by bolts; the upper side of the dragging side plate 105 is processed with 1 slot 604, and the spring lifting device 107 is installed in the slot 604 and fixed by bolts. The linear rail slide block 108 is sleeved in the linear rail 301, and only one motion freedom degree relative to horizontal translation exists between the linear rail slide block and the linear rail 301, so that the dragging side plate 105 can only move horizontally but can not move up and down; the main bedplate 101 is arranged on the upper side of the dragging side plate 105 and supported by a spring lifting device 107, and the pretightening force of the spring lifting device 107 is slightly larger than the sum of the gravity of the main bedplate 101, a mould, a workpiece and the like and is far smaller than the pressing force of a hydraulic press, so a certain upper and lower gap is formed between the main bedplate 101 and the dragging side plate 105 in a natural state; a supporting step 503 is arranged at the lower side of the main bedplate 101, a gap is also formed between the lower surface of the supporting step 503 of the main bedplate 101 and the upper surface of the lower cross beam 801 of the hydraulic machine in a natural state, and the gap is smaller than the gap between the main bedplate 101 and the dragging side plate 105 in the natural state; when the hydraulic press presses a workpiece, the spring lifting device 107 is compressed and contracted, the main bedplate 101 moves downwards relative to the dragging side plate 105, the lower surface of a supporting step 503 of the main bedplate 101 is firstly contacted with the upper surface of a lower cross beam 801 of the hydraulic press, and the gap between the main bedplate 101 and the dragging side plate 105 is reduced but is not contacted, so that the pressing force is finally borne by the lower cross beam 801 of the hydraulic press, and the acting force between the linear rail slide block 108 and the linear rail 301 is the maximum sum of the gravity of the main bedplate 101, a die, the workpiece and the like; the driving device 2 drives the dragging side plate 105 through the gear 206 and the rack 106, and the dragging side plate 105 transmits dragging force to the main table board 101 through the guide sleeve 103 and the cylindrical guide pin 104; the guiding function between the guide sleeve 103 and the cylindrical guide pin 104 also enables the main platen 101 and the dragging side plate 105 to have only the freedom degree of relative motion up and down without relative dislocation in other directions, thereby ensuring the structural stability and the alignment precision of the upper and lower dies when the main platen 101 moves rapidly.

When the mobile station 1 is assembled, firstly, two dragging side plates 105 are respectively arranged on two side line track slide blocks 108, the number of the line track slide blocks 108 is determined according to the total weight force to be born, the spring lifting device 107 is fixedly arranged in a groove 604 of the dragging side plate 105, then, a cylindrical guide pin 104 is placed in a blind hole 603 on the upper side of the dragging side plate 105 and is fixed, at least two cylindrical guide pins 104 are placed on each dragging side plate 105, the size and the number of the cylindrical guide pins 104 are determined according to the dragging force, the space structure and the like, then, a guide sleeve 103 is sleeved into the cylindrical guide pin 104, a step through hole 502 of a main bedplate 101 is aligned to the arranged guide sleeve 103 and is hoisted on the two dragging side plates 105, melted low-melting-point alloy is poured into a gap between the outer surface of the guide sleeve 103 and the inner surface of the step through hole 502 from the upper side of the step through hole 502, finally, the end cap 102 is installed to enclose the stepped through bore 502.

A T-shaped groove 501 machined in the upper surface of the main platen 101 is used to mount the mold. When the hydraulic press works, the moving platform 1 moves out of a hydraulic press frame, after the feeding is finished, the moving platform 1 first accelerates to move into the highest speed, then moves for a certain distance at the highest speed, then starts to decelerate, and finally stops at the aligned positions of the upper die and the lower die, and the servo motor 1 is locked in a brake locking position, the whole moving process of the moving platform 1 is finished under the closed-loop control of the servo motor 1, so that the high-speed moving control is realized, and the accurate positioning is ensured. After the moving platform 1 moves into the hydraulic press frame to be in place, the hydraulic press sliding block starts to press downwards, the spring lifting device 107 starts to contract after the workpiece is pressed, the main bedplate 101 moves downwards for a short distance, the supporting step 503 of the main bedplate 101 is contacted with the lower cross beam 801 of the hydraulic press, and the pressing force of the hydraulic press is completely supported by the lower cross beam 801 of the hydraulic press; after pressing is finished, a sliding block of the hydraulic press returns, the spring lifting device 107 lifts the main platen 101 to the front height, the lifting distance of the spring lifting device 107 is small, and therefore the moving platform 1 can be moved out after die opening, and the moving-out process is accelerated to the highest speed and then decelerated to stop positioning. Obviously, in the linkage working process, the situation that the mobile workbench is required to be descended to the place before pressing and lifted to the place after return stroke is avoided like the traditional hydraulic machine, the waiting time of auxiliary actions is saved, and the working efficiency of the hydraulic machine is effectively improved. The lifting and the falling of the mobile station 1 do not need additional power input, the energy-saving effect is achieved, and the simplification of the lifting device is beneficial to the improvement of the operation stability of the hydraulic machine.

Claims

1. A passive lifting type high-speed moving workbench of a hydraulic machine is characterized in that: the linear guide device mainly comprises a mobile platform (1), a driving device (2) and a linear guide device (3), wherein the mobile platform (1) comprises a main bedplate (101), an end cover (102), a guide sleeve (103), a cylindrical guide pin (104), a dragging side plate (105), a rack (106), a spring lifting device (107) and a linear guide slider (108); the driving device (2) comprises a servo motor (201), a speed reducer (202), a flange (203), a bearing seat (204), a transmission shaft (205) and a gear (206); the wire rail device (3) comprises a wire rail (301), a bracket (302), a shifting-out collision block (303) and a shifting-in collision block (304); the mobile station (1) is supported by a linear rail (301) and is positioned above a lower cross beam of the hydraulic machine; a gear (206) of the driving device (2) is meshed with a rack (106) of the mobile platform (1), and the mobile platform (1) moves in and out of the hydraulic press frame under the power action of the driving device (2); the linear rail device (3) is divided into an inner part and an outer part of a hydraulic press frame, plays a role in supporting and guiding the mobile station (1), and limits the movement of the mobile station (1) within the length range of the linear rail (301); an output shaft of a servo motor (201) of the driving device (2) is coaxially connected with an input shaft of a speed reducer (202) and is in key transmission; the output shaft of the speed reducer (202) is coaxially connected with the transmission shaft (205) and is driven by a key; the shell of the servo motor (201) is connected with the shell of the speed reducer (202) through a flange; the shell of the speed reducer (202) is connected with a left bearing seat (204) through a flange (203); the two bearing blocks (204) are respectively fixed on a lower cross beam of the hydraulic machine through bolts, and the transmission shaft (205) penetrates through the bearing blocks (204); the two gears (206) respectively coaxially penetrate through the two sides of the transmission shaft (205) and are driven by keys; the whole driving device (2) is fixed on a lower cross beam of the hydraulic machine through a bearing seat (204); a bracket (302) of the linear rail device (3) is placed on the front side of the hydraulic machine and is fixedly connected with a lower cross beam of the hydraulic machine; mounting grooves of the linear rails (301) are machined on the upper surfaces of the bracket (302) and the lower cross beam of the hydraulic machine, and the mounting surfaces of the mounting grooves of the same linear rail (301) are aligned; the shifting-out collision block (303) is fixedly arranged at the tail end of the wire track (301) on the bracket (302); the moving-in collision block (304) is arranged at the tail end of the rear side track (301) of the lower beam of the hydraulic machine; the movement and positioning of the mobile station (1) are realized by controlling the servo motor (201).

2. A passive lifting high-speed moving table of a hydraulic machine according to claim 1, characterized in that: a step through hole is processed on a main bedplate (101) of the mobile station (1), a guide sleeve (103) and an end cover (102) are sequentially arranged in the step through hole from bottom to top, and the end cover (102) is fixed on the main bedplate (101) through bolts; a blind hole is processed on the upper side of the dragging side plate (105), and a cylindrical guide pin (104) is installed in the blind hole and fixed by a bolt; the guide sleeve (103) is matched with the cylindrical guide pin (104) through a shaft hole, the cylindrical guide pin (104) is firstly installed and then the guide sleeve (103) is installed during installation, and the guide sleeve (103) and the cylindrical guide pin (104) can move up and down relatively; 2 grooves are processed on the lower side of the dragging side plate (105), the grooves on the edge are used for mounting a rack (106), the grooves close to the inner side are used for mounting a linear rail sliding block (108), and the rack (106) and the linear rail sliding block (108) are fixed on the dragging side plate (105) through bolts; 1 groove is processed on the upper side of the dragging side plate (105), and a spring lifting device (107) is installed in the groove and fixed by bolts; the linear rail sliding block (108) is sleeved in the linear rail (301), and only one motion freedom degree relative to horizontal translation exists between the linear rail sliding block and the linear rail sliding block, so that the dragging side plate (105) can only move horizontally but not move up and down; the main bedplate (101) is arranged on the upper side of the dragging side plate (105) and is supported by a spring lifting device (107), and the pretightening force of the spring lifting device (107) is greater than the sum of the gravity of the main bedplate (101), a mould and a workpiece and is less than the pressing force of a hydraulic press, so a certain upper and lower gap is formed between the main bedplate (101) and the dragging side plate (105) in a natural state; a supporting step is arranged on the lower side of the main bedplate (101), a gap is also formed between the lower surface of the supporting step of the main bedplate (101) and the upper surface of the lower cross beam of the hydraulic machine in a natural state, and the gap is smaller than the gap between the main bedplate (101) and the dragging side plate (105) in the natural state; when the hydraulic press presses a workpiece, the spring lifting device (107) is compressed and contracted, the main bedplate (101) moves downwards relative to the dragging side plate (105), the lower surface of a supporting step of the main bedplate (101) is firstly contacted with the upper surface of a lower cross beam of the hydraulic press, and the gap between the main bedplate (101) and the dragging side plate (105) is reduced but not contacted, so that the pressing force is finally borne by the lower cross beam of the hydraulic press, and the acting force between the linear rail slide block (108) and the linear rail (301) is the maximum sum of the gravity of the main bedplate (101), the mold and the workpiece; the driving device (2) drives the dragging side plate (105) through a gear (206) and a rack (106), and the dragging side plate (105) transmits dragging force to the main bedplate (101) through the guide sleeve (103) and the cylindrical guide pin (104); the guide function between the guide sleeve (103) and the cylindrical guide pin (104) also ensures that only the freedom degree of the up-and-down relative movement between the main bedplate (101) and the dragging side plate (105) can not generate relative dislocation in other directions, thereby ensuring the structural stability and the alignment precision of the upper die and the lower die when the main bedplate (101) moves rapidly.