CN219667552U

CN219667552U - Low-height compact standardized heavy-load lifting driving module and bending machine

Info

Publication number: CN219667552U
Application number: CN202320720137.9U
Authority: CN
Inventors: 徐丰羽; 胡金龙; 丁大伟; 蒋国平
Original assignee: Nanjing University of Posts and Telecommunications
Current assignee: Nanjing University of Posts and Telecommunications
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-09-12
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a low-height compact standardized heavy-load lifting driving module and a bending machine, comprising a power component, a connecting seat and a spiral transmission mechanism; the spiral transmission mechanism comprises a rotating component and a lifting component; the lifting component is vertically arranged, the bottom is connected with an external lifting load, and the top is matched with the screw thread pair of the rotating component; the rotating component is hinged and matched with the mounting seat; the mounting seat is provided with a mounting plane which is mounted with external equipment; the power component comprises a driving motor and a rotary reversing transmission mechanism arranged in the mounting seat; the driving motor is horizontally arranged; the rotary reversing transmission mechanism comprises a transverse rotating piece and a vertical rotating piece; the transverse rotating piece is transversely arranged, and the input end of the transverse rotating piece is connected with the driving motor; the vertical rotating piece is vertically arranged, and the output end is connected with the top end of the rotating part. The utility model reduces the total height of the module by 200-300 mm while bearing, thereby having compact structure, small size, small occupied space and convenient transportation.

Description

Low-height compact standardized heavy-load lifting driving module and bending machine

Technical Field

The utility model relates to a power driving device, in particular to a low-height compact standardized heavy-load lifting driving module and a bending machine.

Background

At present, the hydraulic drive is mainly used in domestic and foreign markets aiming at a slider lifting driving device of numerical control bending equipment with more than 80 tons. The mechanical all-electric servo is still blank at present due to the influence of factors such as manufacturing cost, transmission technology, numerical control system, complete machine structure and the like. The hydraulic drive has the advantages of being applicable to large tonnage of more than 80 tons and easy to realize bending processing of large-breadth thick plates. However, there are also the following disadvantages:

1. large noise, high energy consumption, hydraulic oil leakage and environmental pollution.

2. The cost is high because the cost of high-precision parts such as a hydraulic cylinder, a valve bank, a hydraulic pump and the like is high, wherein the high-end market of the valve bank and the hydraulic pump part almost completely depends on import, and the cost is high.

3. The accuracy is not high, the position accuracy control of the hydraulic system has the inherent disadvantage of poor position controllability.

4. The service life is low, components and parts are worn, a hydraulic oil way is polluted, and the stability of a hydraulic system is easy to be adversely affected.

5. The action impact of the sliding block is large and not gentle.

6. Is greatly influenced by the factors such as the temperature, the humidity, the dust and the like of the environment.

7. Motion control is complex.

8. The control system relies on importation.

9. The processing efficiency is low.

However, the current market share of 80 tons and above reaches over 80% of the market share. However, mechanical all-electric servoing is becoming a bottleneck replacing traditional hydraulic drives for the following reasons.

1. The prior art mainly drives a screw rod after a servo motor is decelerated by a synchronous belt, and has the defects of poor rigidity, high noise and poor transmission precision.

2. The connecting rod mechanism has nonlinear characteristics, and can realize the characteristics of high speed and low load of idle stroke, low speed and high load of bending stroke, but has the advantages of more parts, complex control and short effective working stroke.

3. The servo motor is connected with the screw rod through the speed reducing mechanism, and the external dimension is too large, so that the packaging and the transportation are inconvenient.

4. The transmission part cannot realize modularized design and processing, has high manufacturing cost and no interchangeability, and is difficult to realize batch copying.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art, and provides a low-height compact standardized heavy-load lifting driving module and a bending machine, which are used for reducing the total height of the module by 200-300 mm while bearing, so that the low-height compact standardized heavy-load lifting driving module and the bending machine are compact in structure, small in size, small in occupied space and convenient to transport.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a low-height compact standardized heavy-load lifting driving module comprises a power component, a connecting seat and a screw transmission mechanism.

The spiral transmission mechanism comprises a rotating component and a lifting component; the lifting component is vertically arranged, the bottom of the lifting component is connected with an external lifting load, and the top of the lifting component is matched with the screw thread pair of the rotating component; the rotating component is hinged and matched with the mounting seat; the mounting base has a mounting plane mounted with an external device.

The power component comprises a driving motor and a rotary reversing transmission mechanism arranged in the mounting seat.

The driving motor is horizontally arranged.

The rotary reversing transmission mechanism comprises a transverse rotating piece and a vertical rotating piece which are directly or indirectly meshed.

The transverse rotating member is transversely arranged, and the input end is directly or indirectly connected with the driving motor.

The vertical rotating piece is vertically arranged, and the output end is directly or indirectly connected with the top end of the rotating part of the spiral transmission mechanism.

The rotary reversing transmission mechanism is a worm and gear transmission mechanism; the transverse rotating piece is a worm, and the vertical rotating piece is a worm wheel; the worm wheel is coaxially sleeved on the periphery of the top end of the rotating part of the screw transmission mechanism.

The rotary reversing transmission mechanism is a conical gear reduction mechanism, and the conical gear reduction mechanism comprises a conical pinion and a conical bull gear which are meshed with each other; the conical pinion is a transverse rotating piece and coaxially sleeved on the periphery of an output shaft of the driving motor; the conical large gear is a vertical rotating piece and is coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism.

The rotary reversing transmission mechanism is a gear shaft transmission mechanism.

The gear shaft transmission mechanism comprises a driving gear, a gear shaft and a large gear.

The driving gear is a transverse rotating piece and is coaxially sleeved on the periphery of an output shaft of the driving motor.

The large gear is a vertical rotating piece and is coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism.

The gear shaft is vertically rotatably arranged in the mounting seat, and a bevel gear and a pinion are sequentially and coaxially sleeved on the gear shaft from top to bottom; wherein the pinion is meshed with the bull gear; the bevel gear is directly or indirectly meshed with the driving gear.

The driving gear is a driving bevel gear; the drive bevel gear is directly engaged with the bevel gear.

The driving gear is a driving spur gear; the gear shaft transmission mechanism also comprises a transition wheel shaft; the transition wheel shaft is horizontally arranged in the mounting seat; a transition wheel and a transition bevel gear are coaxially and sequentially sleeved on the transition wheel shaft; the transition wheel is meshed with the driving straight gear, and the transition bevel gear is meshed with the bevel gear, so that the bevel gear is indirectly meshed with the driving gear.

The screw transmission mechanism is of a screw rod nut structure; when the rotating part is a screw rod, the lifting part is a nut; when the rotating part is a nut, the lifting part is a screw rod.

The load installation seat is integrally arranged at the top of the external lifting load, and the installation plane is arranged at the top of the load installation seat; an arc block is arranged right below the lifting part of the spiral transmission mechanism, and the bottom surface of the arc block is matched with the top mounting plane of the load mounting seat; the top surface of the arc-shaped block is matched with the cambered surface or the spherical surface of the bottom surface of the lifting part; the right lower part of the lifting part and the arc-shaped block can be connected with the load mounting seat through a plurality of bolts.

The device also comprises a guide mechanism; the guide mechanism comprises a guide sliding block and a sliding rail; the guide sliding block is integrally designed with or detachably connected with the lifting part of the spiral transmission mechanism; the guide sliding block is matched with the sliding rail through a sliding pair.

A bending machine comprises a frame, a sliding block lifting driving device and a bending die.

The frame comprises two parallel frame side plates.

The sliding block is an external lifting load, is slidably arranged on the front side surfaces of the two frame side plates, and can be lifted up and down in height.

The bending die comprises a bending upper die and a bending lower die; the upper bending die is arranged at the bottom of the sliding block, and the lower bending die is arranged on the frame right below the upper bending die.

The sliding block lifting driving device is provided with two groups, is symmetrically arranged at two sides of the sliding and is used for driving the sliding to lift up and down at a high speed.

The structure of each group of sliding block lifting driving device is a low-height compact standardized heavy-load lifting driving module.

The utility model has the following beneficial effects:

1. the utility model can reduce the total height of each group of low-height compact standardized heavy-load lifting driving modules (namely the total height of the bending machine) by 200-300 mm, thereby having compact structure, small size, small occupied space and convenient transportation.

2. The bearing capacity is strong, the full electric servo transmission of more than 80 tons can be realized, the cost is effectively controlled, and the batch production can be realized.

3. The low-height compact standardized heavy-load lifting driving module is used as an independent standard module for research, development and manufacturing, is beneficial to cost control and quality control, and is suitable for mass production. Meanwhile, the device is convenient to maintain and exchange, and the processing and manufacturing efficiency is greatly improved.

4. The low-height compact standardized heavy-load lifting driving module can be movably connected with the sliding block, the sliding block can incline, unbalanced load and asynchronous left and right, and the screw rod cannot be damaged.

Drawings

FIG. 1 shows a block diagram of a low-profile, compact standardized heavy-duty lift drive module of the present utility model without a coupling.

Fig. 2 shows a block diagram of a low-height compact standardized heavy-duty lifting drive module of the present utility model including a coupling.

FIG. 3 shows a block diagram of the rotary direction-changing transmission mechanism of the present utility model as a worm gear transmission mechanism; wherein (a) comprises a coupling; (b) does not include a coupling; (c) does not include a coupling and has a transition gear.

Fig. 4 shows a structural view of the rotary direction changing transmission mechanism of the present utility model as a bevel gear reduction mechanism.

Fig. 5 is a diagram showing a first embodiment of the rotary direction changing transmission mechanism of the present utility model as a gear shaft transmission mechanism.

Fig. 6 is a diagram showing a second embodiment of the rotary direction changing transmission mechanism of the present utility model which is a gear shaft transmission mechanism.

Fig. 7 shows a first embodiment of the screw drive according to the utility model.

Fig. 8 shows a second embodiment of the screw drive according to the utility model.

Fig. 9 shows a schematic structural view of the guide mechanism in the present utility model.

Fig. 10 shows a second schematic structural view of the guide mechanism in the present utility model.

FIG. 11 is a schematic diagram showing the movable connection of the low-height compact standardized heavy-duty lifting driving module and the sliding block.

Fig. 12 shows a cross-sectional view of fig. 11.

FIG. 13 shows a schematic view of the cooperation of the lifting member with the arcuate block; (a) is cambered surface matching; (b) spherical fitting.

Fig. 14 shows a schematic structural diagram of the bending machine according to the present utility model.

The method comprises the following steps:

1. a sliding lifting driving device;

1-1, a power component;

1-1-1. Driving a motor;

1-1-2a worm gear; 1-1-2b, worm; 1-1-2c, transition gear;

1-1-3a. A bevel pinion; 1-1-3b. Conical gearwheel;

1-1-4a. A drive gear; 1-1-4b, gear shaft; 1-1-4c bevel gears; 1-1-4d. Pinion gear; 1-1-4e. Transition wheel; 1-1-4f. Transition bevel gears; 1-1-4g of a large gear;

1-2, connecting seats;

1-3-1. Rotating part; 1-3-2, lifting components;

1-4-1. A guide slide block; 1-4-2. Sliding rail;

2-1, a rack side plate; 2-2, sliding blocks; 2-3, upper bending die; 2-4, lower bending die;

3. an arc-shaped block; 3-1, cambered surfaces; 3-2, spherical surface;

4. a bolt; 4-1, springs; 4-2, locking the nut.

Detailed Description

The utility model will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

In the description of the present utility model, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present utility model. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present utility model.

As shown in fig. 14, a bending machine includes a frame, a slider 2-2, a slider lifting drive device, and a bending die.

The frame comprises two parallel frame side plates 2-1.

The bending die comprises a bending upper die 2-3 and a bending lower die 2-4; the upper bending die is arranged at the bottom of the sliding block, and the lower bending die is arranged on the frame right below the upper bending die.

Further, the vertical axes of the two groups of sliding block lifting driving devices, namely the vertical axes of the two groups of low-height compact standardized heavy-load lifting driving modules, are respectively arranged on the intersecting lines of the plane where the sliding block is positioned and the plane where the corresponding side frame side plate is positioned.

As shown in fig. 1 and 2, a low-height compact standardized heavy-duty lifting driving module, that is, a sliding lifting driving device 1, comprises a power component 1-1, a connecting seat 1-2 and a screw transmission mechanism.

As shown in fig. 7 and 8, the screw transmission mechanism includes a rotating member 1-3-1 and a lifting member 1-3-2; the lifting component is vertically arranged, the bottom of the lifting component is connected with an external lifting load (namely a sliding block), and the lifting component is matched with the screw thread pair of the rotating component; the rotating component is hinged and matched with the mounting seat; the mounting base has a mounting plane mounted with an external device.

The screw driver is preferably a trapezoidal screw or a ball screw or a planetary roller screw and the like; in the present utility model, the screw transmission mechanism is preferably a lead screw nut structure, and has the following two embodiments.

First embodiment

As shown in fig. 7, the rotating member is a screw, and the lifting member is a nut.

Second embodiment

As shown in fig. 8, the rotating member is a nut, and the lifting member is a screw. The nut is hinged with the connecting seat, and the screw rod is connected with the sliding block. The nut rotates, and the advantage that the lead screw goes up and down is that the structure is compacter, avoids the resonance problem of lead screw.

Preferably, but not limited to, the shaft of the servo motor may be made hollow in order to allow the screw to pass through the corresponding hollow structure during the lifting process. But it is also possible if the shaft of the servomotor is not hollow.

As shown in fig. 3 to 6, the power unit includes a drive motor 1-1-1 and a rotation reversing transmission mechanism provided in the mount.

The driving motor is horizontally arranged.

The transverse direction is not absolutely horizontal, the vertical direction is not absolutely vertical, and when the inclination is 10-20 degrees, the inclination is also within the protection scope of the utility model.

In the present utility model, the rotary reversing gear preferably has the following four embodiments.

Example 1

As shown in (b) of fig. 3, the rotation reversing transmission mechanism is a worm gear transmission mechanism; the transverse rotating piece is a worm 1-1-2b, and the vertical rotating piece is a worm wheel 1-1-2a; the worm wheel is coaxially sleeved on the periphery of the top end of the rotating part of the screw transmission mechanism.

Further, as shown in fig. 3 (a), the input end of the worm is preferably connected to the output shaft of the drive motor through a coupling 1-1-5.

Further, as shown in (c) of fig. 3, a driving gear 1-1-4a is coaxially sleeved on an output shaft of the driving motor, a worm is preferably horizontally installed in the connecting seat, a transition gear 1-1-2c is preferably coaxially sleeved at an input end of the worm, the transition gear is meshed with the driving gear, and a middle thread of the worm is meshed with the worm wheel.

Example 2

As shown in fig. 4, the rotary reversing transmission mechanism is a conical gear reduction mechanism which comprises conical pinion gears 1-1-3a and conical bull gears 1-1-3b which are meshed with each other; the conical pinion is a transverse rotating piece and coaxially sleeved on the periphery of an output shaft of the driving motor; the conical large gear is a vertical rotating piece and is coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism.

Example 3

As shown in fig. 5, the gear shaft transmission mechanism includes drive gears 1-1-4a, gear shafts 1-1-4b, and large gears 1-1-4g.

The gear shaft is vertically rotatably arranged in the mounting seat, and a bevel gear 1-1-4c and a pinion 1-1-4d are sequentially and coaxially arranged on the gear shaft from top to bottom; wherein the pinion is meshed with the bull gear; the driving gear is a driving bevel gear, and the bevel gear is directly meshed with the driving gear.

Example 4

As shown in fig. 6, the rotary reversing transmission mechanism is a gear shaft transmission mechanism, and basically has the same structure as embodiment 3, except that: the driving gear is a driving spur gear; the gear shaft transmission mechanism also comprises a transition wheel shaft; the transition wheel shaft is horizontally arranged in the mounting seat; the transition wheel shaft is coaxially and sequentially sleeved with transition wheels 1-1-4e and transition bevel gears 1-1-4f; the transition wheel is meshed with the driving straight gear, and the transition bevel gear is meshed with the bevel gear, so that the bevel gear is indirectly meshed with the driving gear.

Alternatively, the rotation reversing transmission mechanism may be a planetary gear reduction mechanism or the like, and is also within the scope of the present utility model.

As shown in fig. 9, a low-height compact standardized heavy-duty lifting driving module further comprises a guide mechanism capable of increasing transmission stability; the guide mechanism comprises a guide sliding block 1-4-1 and a sliding rail 1-4-2; the guide sliding block is integrally designed with or detachably connected with the lifting part of the spiral transmission mechanism; the guide sliding block is matched with the sliding rail through a sliding pair.

In fig. 9, the slide rail is a linear slide rail, alternatively, the slide rail may be a cylindrical sleeve in fig. 10, which is preferably bolted to the connection seat as a whole; the guide sliding block can be integrally designed by a screw transmission part and also can be connected by bolts. Cylindrical surface guiding is formed between the guiding sliding block and the guide rail. Further, the guiding mechanism is not limited to the specific shape provided in the present case, and other known prior arts such as linear guide rails, cylindrical guide rails, dovetail guide rails, etc. are all within the scope of protection of the claims, and are regarded as equivalent substitutions.

As shown in fig. 11 and 12, a load mounting seat is integrally arranged at the top of the external lifting load (i.e. the sliding block), and a mounting plane is arranged at the top of the load mounting seat; an arc block 3 is arranged right below the lifting part of the spiral transmission mechanism, and the bottom surface of the arc block is matched with the top mounting plane of the load mounting seat; the top surface of the arc-shaped block is matched with the bottom surface of the lifting part through an arc surface 3-1 or a spherical surface 3-2 shown in figure 13.

The lifting component and the arc-shaped block are preferably connected with the load mounting seat through a plurality of bolts 56 and are locked at the bottom through locking nuts 4-2; each bolt between the arc-shaped block and the locking nut is preferably sleeved with a spring 4-1 with a buffering function.

The following advantages are provided: the sliding block lifting driving device is movably connected with the sliding block, and the sliding block can incline, unbalanced load and asynchronous left and right, so that the damage of a screw rod is avoided: the lower part of the lifting part (preferably a nut here) is provided with a circular arc-shaped molded surface which is matched with the circular arc-shaped surface at the upper part of the circular arc-shaped block, and the lower part of the circular arc-shaped block is matched with the mounting planes of the two shoulders of the sliding block. The bolts sequentially penetrate through the round holes of the shoulders of the sliding blocks, and the round holes of the arc-shaped blocks are fixedly connected with the lifting parts. The lower part of the bolt is sequentially connected with the spring through the lock nut from bottom to top to 'hoist' the sliding block and balance the gravity of the sliding block.

The preferred embodiments of the present utility model have been described in detail above, but the present utility model is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the equivalent changes belong to the protection scope of the present utility model.

Claims

1. A low-height compact standardized heavy-load lifting drive module is characterized in that: comprises a power component, a connecting seat and a spiral transmission mechanism;

the spiral transmission mechanism comprises a rotating component and a lifting component; the lifting component is vertically arranged, the bottom of the lifting component is connected with an external lifting load, and the lifting component is matched with the screw thread pair of the rotating component; the rotating component is hinged and matched with the mounting seat; the mounting seat is provided with a mounting plane which is mounted with external equipment;

the power component comprises a driving motor and a rotary reversing transmission mechanism;

the driving motor is horizontally arranged;

the rotary reversing transmission mechanism comprises a transverse rotating piece and a vertical rotating piece which are directly or indirectly meshed;

the transverse rotating piece is transversely arranged, and the input end of the transverse rotating piece is directly or indirectly connected with the driving motor;

2. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the rotary reversing transmission mechanism is a worm and gear transmission mechanism; the transverse rotating piece is a worm, and the vertical rotating piece is a worm wheel; the worm wheel is coaxially sleeved on the periphery of the top end of the rotating part of the screw transmission mechanism.

3. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the rotary reversing transmission mechanism is a conical gear reduction mechanism, and the conical gear reduction mechanism comprises a conical pinion and a conical bull gear which are meshed with each other; the conical pinion is a transverse rotating piece and coaxially sleeved on the periphery of an output shaft of the driving motor; the conical large gear is a vertical rotating piece and is coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism.

4. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the rotary reversing transmission mechanism is a gear shaft transmission mechanism;

the gear shaft transmission mechanism comprises a driving gear, a gear shaft and a large gear;

the driving gear is a transverse rotating piece and coaxially sleeved on the periphery of an output shaft of the driving motor;

the large gear is a vertical rotating piece and coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism;

the gear shaft is vertically rotatably arranged in the mounting seat, and a bevel gear and a pinion are sequentially and coaxially sleeved on the gear shaft; wherein the pinion is meshed with the bull gear; the bevel gear is directly or indirectly meshed with the driving gear.

5. The low-height compact standardized heavy-duty hoist drive module of claim 4, characterized in that: the driving gear is a driving bevel gear; the drive bevel gear is directly engaged with the bevel gear.

6. The low-height compact standardized heavy-duty hoist drive module of claim 4, characterized in that: the driving gear is a driving spur gear; the gear shaft transmission mechanism also comprises a transition wheel shaft; the transition wheel shaft is horizontally arranged in the mounting seat; a transition wheel and a transition bevel gear are coaxially and sequentially sleeved on the transition wheel shaft; the transition wheel is meshed with the driving straight gear, and the transition bevel gear is meshed with the bevel gear, so that the bevel gear is indirectly meshed with the driving gear.

7. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the screw transmission mechanism is of a screw rod nut structure; when the rotating part is a screw rod, the lifting part is a nut; when the rotating part is a nut, the lifting part is a screw rod.

8. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the load installation seat is integrally arranged at the top of the external lifting load, and the installation plane is arranged at the top of the load installation seat; an arc block is arranged right below the lifting part of the spiral transmission mechanism, and the bottom surface of the arc block is matched with the top mounting plane of the load mounting seat; the top surface of the arc-shaped block is matched with the cambered surface or the spherical surface of the bottom surface of the lifting part; the right lower part of the lifting part and the arc-shaped block can be connected with the load mounting seat through a plurality of bolts.

9. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the device also comprises a guide mechanism; the guide mechanism comprises a guide sliding block and a sliding rail; the guide sliding block is integrally designed with or detachably connected with the lifting part of the spiral transmission mechanism; the guide sliding block is matched with the sliding rail through a sliding pair.

10. A bending machine, characterized in that: comprises a frame, a sliding block lifting driving device and a bending die;

the rack comprises two rack side plates which are arranged in parallel;

the sliding blocks are external lifting loads, are slidably arranged on the front side surfaces of the two frame side plates, and can be lifted up and down in height;

the bending die comprises a bending upper die and a bending lower die; the bending upper die is arranged at the bottom of the sliding block, and the bending lower die is arranged on the frame right below the bending upper die;

the sliding block lifting driving device is provided with two groups which are symmetrically arranged at two sides of the sliding and used for driving the sliding to lift at a height;

the structure of each group of sliding block lifting driving device is a low-height compact standardized heavy-load lifting driving module as claimed in any one of claims 1-9.