CN211915082U

CN211915082U - Steel plate ring bending tool

Info

Publication number: CN211915082U
Application number: CN201922316433.9U
Authority: CN
Inventors: 王小芳
Original assignee: Henan Hengtuo Electronic Technology Co ltd
Current assignee: Henan Hengtuo Electronic Technology Co ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2020-11-13
Anticipated expiration: 2029-12-21

Abstract

The utility model discloses a steel sheet ring instrument of bending, both ends symmetry is provided with the fretwork district on the workstation, installs tubular rotary part through the bearing respectively at the fretwork district edge of every end, still is fixed with fixed commentaries on classics cover on the workstation simultaneously, tubular rotary part suit is in this fixed commentaries on classics cover, and tubular rotary part at both ends is fixed through linking the board and can be rotated in step together, and the region between the tubular rotary part at both ends is the district of bending. The utility model discloses an instrument can realize one step of shaping of bending, no longer needs the secondary to bend the processing after the shaping, can directly form the ring bodies and be located the straight board that is used for connecting that central point put through welding or thread tightening, is particularly useful for installing axle type work piece or uses as lifting device. And the installation of the plate and the folded unloading are very simple and convenient, thereby simplifying the processing procedure, obviously improving the processing efficiency and saving the labor cost.

Description

Steel plate ring bending tool

Technical Field

The utility model belongs to the technical field of machining instrument of bending, concretely relates to be applied to and carry out the instrument that the ring form was bent to the steel sheet.

Background

In the bending process, metal or other materials are firstly subjected to elastic deformation under the pressure of an upper die or a lower die of a bending tool and then enter plastic deformation, the plate is freely bent at the beginning stage of the plastic bending, the materials are gradually close to the inner surface of a limiting type groove along with the pressure applied to the plate by the upper die or the lower die, the curvature radius and the bending force arm are gradually reduced, and the materials are continuously pressurized until the stroke is ended to form a bent workpiece with a regular shape. The existing bending tools are mostly suitable for bending wires, such as bending steel bars and bending steel pipes, and are rarely suitable for effectively bending plates. For example, a simple bending tool disclosed in CN 108971290a includes a base including a bottom plate and a sleeve; the guide device comprises a U-shaped guide plate, an L-shaped limiting plate, a butterfly bolt, a spring and a guide rod, wherein the U-shaped guide plate comprises a first side plate and a second side plate, a rectangular guide hole, a guide through hole and a threaded hole are formed in the first side plate, one end of the L-shaped limiting plate penetrates through the rectangular guide hole, a groove for placing a workpiece is formed between the other end of the L-shaped limiting plate and the second side plate, the spring is installed between the end part of the guide rod and the first side plate, the guide rod penetrates through the guide through hole and then is fixed on the L-shaped limiting plate, the butterfly bolt penetrates through the threaded hole and then abuts against the; the bearing inner ring is fixed with the sleeve; and one end of the swinging arm is fixed on the bearing outer ring, a pin is arranged on the end of the swinging arm, and the other end of the swinging arm is an operating end. The bending tool and the bending tool similar to the technical scheme in the prior art are both dependent on a cylindrical fixed die (or a bearing capable of rotating is used as a die) at the center and a wheel or a column movable die rotating around the fixed die, and generally depend on the movable die to rotate around the fixed die to press the bending shape formed by bending the wire rod. However, when the bending device is applied to bending of the plate, the plate close to the root position is stressed firstly, and the plate far away from the root position is stressed later, so that in the bending process, the finished product is deformed due to uneven stress, and the irregular bending of the formed cylindrical bus is often shown.

On the basis of the above-mentioned technology, even if the scheme is improved, the suspension shaft structure is additionally designed to be a symmetrical structure, namely, a supporting part and a swing arm need to be symmetrically fixed at the other end of the suspension shaft, and although the improvement can provide the compression force with symmetrical two ends, a new problem can occur: the ring formed after the bending is finished forms a closed ring structure and cannot be taken down, and the ring needs to be removed from the supporting part at one end, so that the ring is quite troublesome and is not practically applied basically.

Even if the above-mentioned improved bending tool, or some other similar technical tool, is used, the technical problem still remains: the bent shape has two states as shown in fig. 4 and 5, which cannot be directly applied, and needs to be processed again, for example, by processes of knocking and extruding or reversely bending, so that the bent shape is processed into a product component suitable for use, and the repeated processing increases extra work, needs to be equipped with more auxiliary devices, and is inefficient. For a workpiece with high precision requirement in repeated processing, different stresses formed in secondary processing and primary processing can occur, so that nonstandard changes of internal stress of the workpiece can be caused, and the service performance of the workpiece can be influenced.

SUMMERY OF THE UTILITY MODEL

To the function defect that current instrument of bending generally is not applicable to and bend the steel sheet to be applied to it and bend the back to the steel sheet, even do not have the back deformation problem of bending, also can have the problem that must secondary operation handle after bending, the utility model provides a steel sheet ring bending instrument aims at providing one shot forming's instrument of bending, does not need the secondary to bend the processing, and the ring body after bending contains the straight board that is located central point and puts, is particularly useful for installation axle class work piece or uses as lifting device.

The utility model provides a scheme that its technical problem adopted is: a steel plate circular ring bending tool is characterized in that hollow areas are symmetrically arranged at two ends of a workbench, tubular rotating parts are arranged at the edges of the hollow areas at each end respectively through bearings, a fixed rotating sleeve is fixed on the workbench, the tubular rotating parts are sleeved in the fixed rotating sleeve, the tubular rotating parts at the two ends are fixed together through a connecting plate and can synchronously rotate, a bending area is arranged in an area between the tubular rotating parts at the two ends, a push-pull rod is matched and sleeved in the tubular rotating part at one end, the push-pull rod is connected with a shaft pushing mechanism, and the push-pull rod can be driven by the shaft pushing mechanism to enter the bending area and be inserted into an inner cavity of the tubular rotating part at the other end; and meanwhile, servo motors are fixedly arranged at two ends of the workbench, and each servo motor is in transmission connection with the tubular rotating part through a transmission mechanism and is used for synchronously driving the tubular rotating parts at the two ends to rotate.

The side wall of the push-pull rod is provided with a rack, the workbench is provided with a shaft push motor, a rotating shaft of the shaft push motor is provided with a straight gear, and the straight gear is meshed with the rack and drives the push-pull rod to move forwards and backwards in the axial direction in a rotating mode.

The shaft pushing mechanism is characterized in that an electric push rod is fixedly arranged on the workbench, the tail end of the electric push rod is connected with the push-pull rod, and the push-pull rod is driven by the electric push rod to axially advance and retreat.

A driving gear is mounted on a rotating shaft of the servo motor, a driven gear is fixed on the outer side of the tubular rotating part in a sleeved mode, and the driving gear is meshed with the driven gear.

The tubular rotating part comprises a rotating sleeve with a larger diameter and a rotating pipe with a smaller diameter, the rotating sleeve is fixed in the rotating sleeve, and the rotating pipe penetrates through the fixed rotating sleeve.

The end of the push-pull rod is sleeved with a die sleeve, the diameters of at least two end parts of the die sleeve are respectively matched with the inner diameters of the rotating pipes on two sides, the diameters of the middle parts of different die sleeves are different, and the inner diameter of the circular ring of the machined tool is changed by replacing different die sleeves.

The utility model has the advantages that: the utility model discloses a scheme can realize one step of shaping of bending, no longer needs the secondary to bend the processing after the shaping, can directly form the ring bodies and be located the straight board that is used for connecting that central point put through welding or thread tightening, is particularly useful for installing axle type work piece or uses as lifting device. And the installation of the plate and the folded unloading are very simple and convenient, thereby simplifying the processing procedure, obviously improving the processing efficiency and saving the labor cost.

The utility model discloses the internal stress of the tourus after folding is even, can be applied to the processing and the processing of bending to accurate part, corresponds the processing procedure that need not carry out the elimination stress again after the processing of bending of accurate part, is fit for popularization and application more.

The utility model discloses still realize bending through the electric drive, labour saving and time saving and high-efficient, the whole atress of process of bending panel is even, and it is simple to unload after bending, through programming the operation back to corresponding motor, can also realize handling the automatic function of accomplishing folding overall process, is convenient for use with automation line combination.

Drawings

Fig. 1 is a schematic top view of the bending tool of the present invention.

Fig. 2 is one of the ring structure schematic diagrams formed by bending the steel plate by the tool of the present invention.

Fig. 3 is a second schematic view of the circular ring structure formed by bending the steel plate according to the tool of the present invention.

Fig. 4 is one of the steel plate bending effect diagrams of the conventional bending tool.

Fig. 5 is a second drawing showing the effect of bending a steel plate by a conventional bending tool.

Reference numbers in the figures: the device comprises a workbench, a servo motor, a driving gear, a driven gear, a rotating sleeve, a rotating pipe, a push-pull rod, a shaft pushing motor, a fixed rotating sleeve, a connecting plate, a fixed sliding sleeve, a reinforcing rib, a shifting hole, a hollow area, a steel plate ring body 15, a long central straight plate 16, a short central straight plate 17 and a bending area 18, wherein the workbench is 1, the servo motor is 2, the driving gear is 3, the driven gear is 4, the rotating sleeve is 5, the rotating pipe is 6, the push-pull rod is 7, the shaft pushing motor is 8, the fixed rotating sleeve is 9.

Detailed Description

The steel plate circular ring bending tool shown in fig. 1 is mainly used for bending and folding a steel plate to form a tool shape containing a steel plate annular body and a central straight plate as shown in fig. 2 or 3. Fig. 2 shows that the tool after bending processing includes a plate annular body, a central long straight plate and a central short straight plate, wherein the central long straight plate and the central short straight plate are located at radial positions of the plate annular body, and can be used only by welding or bolting the central long straight plate and the central short straight plate. As can be seen in fig. 3, the bending process forms the component by simply machining a fixing seat on the straight plate portion, and the fixing seat is located at the center of the steel plate ring body.

The tool for realizing the bending processing of the tool has the specific structure as shown in fig. 1, hollow areas are symmetrically arranged at two ends of a workbench, tubular rotating parts are respectively installed on the edges of the hollow areas at each end through bearings, and meanwhile, a fixed rotating sleeve is further fixed on the workbench. In the drawing, it is obvious that a plurality of hollow areas are arranged on the workbench and are respectively used for abdicating the gear assembly, the rotating sleeve and the connecting plate. Thereby the power part and the rotating part are matched with the workbench.

As shown in the figure, the tubular rotating part comprises a rotating sleeve with a larger diameter and a rotating pipe with a smaller diameter, the rotating sleeve is fixed in the rotating sleeve, and the rotating pipe simultaneously penetrates through the fixed rotating sleeve. The rotating pipes of the tubular rotating parts at the two ends are fixed together through the connecting plate and can synchronously rotate, and the area between the rotating pipes at the two ends is a bending area.

And servo motors are fixedly arranged at the two ends of the workbench, and are in transmission connection with the rotating sleeves of the tubular rotating parts through transmission mechanisms and used for synchronously driving the rotating sleeves of the tubular rotating parts at the two ends to rotate. Specifically, a driving gear is mounted on a rotating shaft of the servo motor, a driven gear is fixed on the outer side of the tubular rotating component in a sleeved mode, and the driving gear is meshed with the driven gear.

As shown in fig. 1, a push-pull rod is fittingly sleeved in the tubular rotating member at one end, the push-pull rod is connected with a shaft pushing mechanism, and the push-pull rod can be driven by the shaft pushing mechanism to enter the bending area and be inserted into the inner cavity of the tubular rotating member at the other end.

In the embodiment, the axial pushing mechanism is that a rack is arranged on the side wall of the push-pull rod, an axial pushing motor is arranged on the workbench, a straight gear is arranged on a rotating shaft of the axial pushing motor and is meshed with the rack, and the straight gear rotates to drive the push-pull rod to move forwards and backwards axially. The rest of the shaft pushing mechanisms can also adopt a pushing and pulling mechanism such as an electric push rod or a worm gear transmission mechanism driven by a motor. Taking the case that the shaft pushing mechanism adopts an electric push rod as an example, the electric push rod is fixedly installed on the workbench, the tail end of the electric push rod is connected with the push-pull rod, and the push-pull rod is driven by the electric push rod to axially move forward and backward.

When the servo motor chamber connecting plate is applied, the servo motor chamber connecting plate is firstly controlled to rotate to be close to and attached to the bottom surface of the workbench, namely the connecting plate is approximately parallel to or attached to the workbench, and meanwhile, the push-pull rod needs to be controlled to withdraw from the sleeve. Inserting the corresponding plate into the bending area to a proper depth, then controlling the push-pull rod to enter the sleeve at the other end from the sleeve at one end, and utilizing the sleeves at the two ends to form a supporting relation at the two ends for the cylindrical push-pull rod. Then the servo motor is started to synchronously drive the rotating sleeves at the two ends, and further the electric connecting plate realizes the turnover motion. And the connecting plate can push the lower end of the plate to rotate along the push-pull rod in the overturning process, and when the connecting plate continues to rotate to the upper side of the workbench until the connecting plate is approximately parallel to the upper surface of the workbench, the processing is finished. During the later stage of the process, the connecting plate simultaneously pushes the lower end and the upper end of the plate to be bent together, and finally, the position which can enable the straight plate to be positioned at the center (radial direction) of the steel plate annular body is formed as shown in figure 2 or figure 3.

Example 2: it can be seen from the above embodiment 1 that the push-pull rod is substantially a mold core, the bent steel plate rotates around the mold core, the diameter of the push-pull rod determines the inner diameter of the circular ring of the bent workpiece, in the processing process aiming at changing the diameter of the mold core, an additional mold sleeve can be designed to be sleeved at the tail end of the push-pull rod, the diameters of at least two end parts of the mold sleeve are respectively matched with the inner diameters of the rotating pipes at two sides, the diameters of the middle parts of different mold sleeves are different, and the inner diameter of the circular ring of the processed tool can be changed by changing different mold sleeves.

Claims

1. The utility model provides a steel sheet ring instrument of bending, its characterized in that, both ends symmetry is provided with the fretwork district on the workstation, installs tubular rotary part at the fretwork district edge of every end respectively through the bearing, still is fixed with fixed commentaries on classics cover simultaneously on the workstation, tubular rotary part suit is in this fixed commentaries on classics cover, and tubular rotary part at both ends passes through the link plate to be fixed together and can rotate in step, and the region between the tubular rotary part at both ends is for bending the district, and the matching cover is equipped with the push-and-pull rod in the tubular rotary part of one end wherein, and the push-and-pull rod is connected with the axle push mechanism, and the push-and-pull rod can be driven by the axle push mechanism.

2. The steel plate ring bending tool according to claim 1, wherein servo motors are fixedly mounted at two ends of the workbench, and each servo motor is in transmission connection with the tubular rotating component through a transmission mechanism and is used for synchronously driving the tubular rotating components at the two ends to rotate.

3. The steel plate ring bending tool according to claim 1, wherein the axial pushing mechanism is formed by arranging a rack on a side wall of the push-pull rod, an axial pushing motor is arranged on the workbench, a rotating shaft of the axial pushing motor is provided with a spur gear, the spur gear is meshed with the rack, and the spur gear rotates to drive the push-pull rod to move forwards and backwards axially.

4. The steel plate ring bending tool according to claim 1, wherein the shaft pushing mechanism is formed by fixedly mounting an electric push rod on the workbench, the tail end of the electric push rod is connected with the push-pull rod, and the push-pull rod is driven to axially advance and retreat by the electric push rod.

5. The steel plate ring bending tool according to claim 2, wherein a driving gear is mounted on a rotating shaft of the servo motor, a driven gear is fixedly sleeved on an outer side of the tubular rotating member, and the driving gear is meshed with the driven gear.

6. The steel plate ring bending tool according to claim 1, wherein the tubular rotating member includes a rotating sleeve having a larger diameter and a rotating tube having a smaller diameter, the rotating sleeve is fixed in the rotating sleeve, and the rotating tube penetrates through the fixed rotating sleeve.