Variable-speed bending machine
By adjusting the bending pressure of the bending machine using a planetary gearbox, the problem of increased cost and power consumption when bending materials with large tonnage in existing bending machines is solved, achieving a simultaneous reduction in overall machine cost and power consumption.
Patent Information
- Application Number
- CN202520504876.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing bending machines require increased servo motor capacity to achieve bending of large-tonnage materials and high-speed idle stroke, which increases the overall cost and power consumption. Furthermore, if the torque of a single motor is insufficient, an additional motor is required, further increasing the cost and power consumption.
The bending pressure is adjusted by using a planetary gearbox, and the output gear is switched by high speed and low torque or low speed and high torque to ensure the working conditions of bending machines of different tonnages, reduce motor capacity, and achieve a simultaneous reduction in overall machine cost and power consumption.
Without adding drive components, the system meets the operating requirements of bending machines of different tonnages, reduces the overall cost and power consumption, and achieves efficient bending of materials of different tonnages.
Smart Images
Figure CN223864303U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending equipment technology, and in particular to a variable speed bending machine. Background Technology
[0002] Bending is a common manufacturing process in the mechanical manufacturing industry, used to bend various materials (such as PET, etc.) into target products with bends at specific angles. The aforementioned process is usually achieved using a bending machine.
[0003] A bending machine is a machine that bends materials. It works by pressing down a pressure plate, forcing the material into the V-groove of a die, thus bending it. Traditional bending machines, to simultaneously bend heavy materials and perform high-speed idle strokes, require increased servo motor capacity, leading to increased overall machine cost and power consumption. Furthermore, if the torque of a single motor is insufficient on a heavy-duty bending machine, additional motors are needed, further increasing cost and power consumption. Utility Model Content
[0004] The purpose of this invention is to solve the technical problem that existing bending machines cannot reduce the overall cost while bending materials of different tonnages.
[0005] To solve the above-mentioned technical problems, this utility model provides a variable speed bending machine, which adopts the following technical solution:
[0006] The variable speed bending machine includes a frame, a worktable located at a lower position on the frame, two pressurizing mechanisms located at a higher position on the frame, and a bending mechanism connected to the output end of the pressurizing mechanisms. The pressurizing mechanism includes a drive assembly, a pressing assembly, and a planetary gearbox, all fixed on the frame. The output end of the drive assembly is connected to the input end of the planetary gearbox, and the output end of the planetary gearbox is connected to the input end of the pressing assembly. The bending mechanism is fixed to the output end of the pressing assembly so that when the drive assembly drives the pressing assembly to push the bending mechanism towards the worktable, the bending pressure of the variable speed bending machine is adjusted by the planetary gearbox.
[0007] Optionally, the planetary gearbox includes a gearbox housing and a planetary gear set, a gearbox shaft, a planetary gear carrier, and two clutches, all disposed within the gearbox housing. The gearbox shaft and the planetary gear carrier are respectively connected to both ends of the planetary gear set, and the two clutches are respectively connected to both ends of the planetary gear set. The input end of the gearbox shaft is connected to the output end of the drive assembly.
[0008] Optionally, the planetary gear set includes a sun gear, a gear ring sleeved on the sun gear, and a plurality of planet gears disposed between the sun gear and the gear ring and meshing with both. The gearbox shaft is connected to the sun gear, and the planet gear carrier is connected to the planet gears.
[0009] Optionally, the number of planetary gears ranges from three to six.
[0010] Optionally, the planetary gearbox further includes a planet carrier shaft for rotatably connecting the planetary gears to the planetary gear carrier.
[0011] Optionally, the two clutches are respectively configured as a first clutch and a second clutch, with one end of the first clutch connected to the gear ring and the other end connected to the planetary carrier, and one end of the second clutch connected to the gear ring and the other end connected to the gearbox housing.
[0012] Optionally, the variable speed bending machine is provided with a high-speed low-torque mode, wherein the high-speed low-torque configuration is as follows: the first clutch is disengaged and the second clutch is engaged.
[0013] Optionally, the variable speed bending machine is provided with a low speed and high torque mode, wherein the low speed and high torque configuration is as follows: the first clutch is engaged and the second clutch is disengaged.
[0014] Optionally, the pressing component is a ball screw, the input end of which is connected to the planetary gear support, and the output end of which is fixed to the bending mechanism.
[0015] Optionally, the drive component is a servo motor, and the output shaft of the servo motor is connected to the gearbox shaft.
[0016] Compared with the prior art, the variable speed bending machine provided by this utility model has the following advantages:
[0017] When this variable speed bending machine is performing bending operations, the input speed of its drive component is adjusted by a planetary gearbox to form the required output speed, which is then output to the pressing component. The planetary gearbox mainly switches the output gears in the form of high speed and low torque or low speed and high torque to ensure that each pressing mechanism meets the working requirements of bending machines of different tonnages without increasing the drive component. At the same time, it reduces the motor capacity, thereby reducing the overall machine cost and power consumption simultaneously. In other words, the bending machine can reduce the overall machine cost while bending materials of different tonnages. Attached Figure Description
[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0019] Figure 1 This is a front view of a variable speed bending machine according to one embodiment of the present invention;
[0020] Figure 2 yes Figure 1 Right view of a medium-speed bending machine;
[0021] Figure 3 yes Figure 1 Exploded three-dimensional structural diagram of the pressurization mechanism of a medium-speed bending machine;
[0022] Figure 4 yes Figure 3 An exploded view of the three-dimensional structure of the planetary gearbox of the intermediate pressurization mechanism.
[0023] The labels in the attached diagram are as follows:
[0024] 100. Variable speed bending machine;
[0025] 10. Frame; 20. Worktable; 30. Bending mechanism;
[0026] 40. Pressurizing mechanism; 41. Drive assembly; 42. Pressurizing assembly; 43. Planetary gearbox; 431. Gearbox housing; 432. Planetary gear set; 4321. Gear ring; 4322. Planetary gear; 433. Gearbox shaft; 434. Planetary gear carrier; 435a. First clutch; 435b. Second clutch; 436. Planetary carrier shaft. Detailed Implementation
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.
[0028] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.
[0029] In the description, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.
[0030] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0031] This utility model embodiment provides a variable speed bending machine 100, such as Figures 1 to 3 As shown, the variable speed bending machine 100 includes a frame 10, a worktable 20, a bending mechanism 30, and two pressing mechanisms 40. The worktable 20 can be located at a lower position on the frame 10 for mounting the bending material. The two pressing mechanisms 40 can be located at a higher position on the frame 10. The bending mechanism 30 can be connected to the output end of the pressing mechanism 40. Understandably, the two pressing mechanisms 40 can be spaced apart and positioned close to both sides of the frame 10 to ensure that the bending material on the worktable 20 is evenly stressed when the two pressing mechanisms 40 drive the bending mechanism 30 downwards.
[0032] The pressurizing mechanism 40 includes a drive assembly 41, a pressing assembly 42, and a planetary gearbox 43, all fixed to the frame 10. The output end of the drive assembly 41 can be connected to the input end of the planetary gearbox 43, and the output end of the planetary gearbox 43 can be connected to the input end of the pressing assembly 42. The bending mechanism 30 can be fixed to the output end of the pressing assembly 42. When the drive assembly 41 drives the pressing assembly 42, the bending pressure required by the variable speed bending machine 100 can be adjusted through the planetary gearbox 43 according to the tonnage of the material being bent. This causes the pressing assembly 42 to work and push the bending mechanism 30 to move towards the worktable 20, thus bending the material of the corresponding tonnage.
[0033] In summary, compared with existing technologies, this variable speed bending machine 100 has at least the following beneficial effects:
[0034] When the variable speed bending machine 100 is performing bending work, the input speed of its drive component 41 is adjusted by the planetary gearbox 43 to form the required output speed, which is then output to the pressing component 42. The planetary gearbox 43 mainly switches the output gear in the form of high speed and low torque or low speed and high torque to ensure that each pressing mechanism 40 meets the working conditions of bending machines of different tonnages without increasing the drive component 41. At the same time, the motor capacity is reduced, and the overall machine cost and power consumption are reduced simultaneously. That is, the bending machine can reduce the overall machine cost while bending materials of different tonnages.
[0035] To enable those skilled in the art to better understand the present invention, the following will be described in conjunction with the appendix. Figures 1 to 4 The technical solutions in the embodiments of this utility model will be clearly and completely described.
[0036] In some embodiments, such as Figure 3 and Figure 4 As shown, the planetary gearbox 43 includes a gearbox housing 431 and a planetary gear set 432, a gearbox shaft 433, a planetary gear carrier 434, and two clutches, all disposed within the gearbox housing 431. The gearbox shaft 433 and the planetary gear carrier 434 can be connected to the two ends of the planetary gear set 432, and the two clutches can be connected to the two ends of the planetary gear set 432, respectively. The input end of the gearbox shaft 433 can be connected to the output end of the drive assembly 41.
[0037] In some embodiments, such as Figure 4 As shown, the planetary gear set 432 includes a sun gear (not shown), a gear ring 4321, and several planet gears 4322. The gear ring 4321 can be fitted onto the sun gear. The several planet gears 4322 can be disposed between the sun gear and the gear ring 4321 and all mesh with both. The several planet gears 4322 can be evenly spaced around the sun gear. The gearbox shaft 433 can be connected to the sun gear, and the planet gear support 434 can be connected to the planet gears 4322.
[0038] In some embodiments, the number of planetary gears 4322 can range from three to six.
[0039] In some embodiments, such as Figure 4 As shown, the planetary gearbox 43 also includes a planet carrier shaft 436, which is used to rotatably connect the planet gears 4322 to the planet gear carrier 434. Understandably, while the planet gears 4322 rotate with the planet gear carrier 434, the planet gears 4322 can remain stationary relative to the planet gear carrier 434, or they can rotate relative to the planet gear carrier 434.
[0040] In some embodiments, such as Figure 4As shown, the two clutches can be respectively configured as a first clutch 435a and a second clutch 435b. One end of the first clutch 435a can be connected to the gear ring 4321 and the other end can be connected to the planetary carrier; one end of the second clutch 435b can be connected to the gear ring 4321 and the other end can be connected to the gearbox housing 431.
[0041] In some embodiments, the variable speed bending machine 100 may be configured with a high speed and low torque mode, wherein the high speed and low torque configuration is as follows: the first clutch 435a is disengaged and the second clutch 435b is engaged.
[0042] Understandably, when the variable speed bending machine 100 is in high speed low torque mode (working stroke), the first clutch 435a is closed and the second clutch 435b is closed, so that the gear ring 4321 is fixedly connected to the gearbox housing 431. At this time, the planetary gearbox 43 outputs at the speed ratio of the planetary gear set 432, amplifying the torque of the drive component 41.
[0043] In some embodiments, the variable speed bending machine 100 may be configured with a low speed and high torque mode, wherein the low speed and high torque configuration is as follows: the first clutch 435a is engaged and the second clutch 435b is disengaged.
[0044] Understandably, when the variable speed bending machine 100 is in low speed and high torque mode (idle stroke), the first clutch 435a is closed and the second clutch 435b is disengaged, so that the gear ring 4321 is fixedly connected to the planetary carrier. At this time, the planetary gearbox 43 outputs at a 1:1 ratio, increasing the idle stroke running speed.
[0045] In some embodiments, the pressing component 42 can be a ball screw, the input end of which can be connected to the planetary gear support 434, and the output end of which can be fixed to the bending mechanism 30.
[0046] In some embodiments, the drive component 41 can be a servo motor, and the output shaft of the servo motor can be connected to the gearbox shaft 433.
[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A variable speed bending machine, characterized in that, The machine includes a frame, a worktable located at a lower position on the frame, two pressurizing mechanisms located at a higher position on the frame, and a bending mechanism connected to the output end of the pressurizing mechanisms. The pressurizing mechanism includes a drive assembly, a pressing assembly, and a planetary gearbox, all fixed on the frame. The output end of the drive assembly is connected to the input end of the planetary gearbox, and the output end of the planetary gearbox is connected to the input end of the pressing assembly. The bending mechanism is fixed to the output end of the pressing assembly so that when the drive assembly drives the pressing assembly to push the bending mechanism towards the worktable, the bending pressure of the variable speed bending machine is adjusted by the planetary gearbox.
2. The variable speed bending machine according to claim 1, characterized in that, The planetary gearbox includes a gearbox housing and a planetary gear set, a gearbox shaft, a planetary gear carrier, and two clutches, all disposed within the gearbox housing. The gearbox shaft and the planetary gear carrier are respectively connected to both ends of the planetary gear set, and the two clutches are respectively connected to both ends of the planetary gear set. The input end of the gearbox shaft is connected to the output end of the drive assembly.
3. The variable speed bending machine according to claim 2, characterized in that, The planetary gear set includes a sun gear, a gear ring sleeved on the sun gear, and a plurality of planet gears disposed between the sun gear and the gear ring and meshing with both. The gearbox shaft is connected to the sun gear, and the planet gear carrier is connected to the planet gears.
4. The variable speed bending machine according to claim 3, characterized in that, The number of planetary gears ranges from three to six.
5. The variable speed bending machine according to claim 3, characterized in that, The planetary gearbox also includes a planet carrier shaft for rotatably connecting the planetary gears to the planetary gear carrier.
6. The variable speed bending machine according to claim 5, characterized in that, The two clutches are respectively designated as a first clutch and a second clutch. One end of the first clutch is connected to the gear ring and the other end is connected to the planetary carrier. One end of the second clutch is connected to the gear ring and the other end is connected to the gearbox housing.
7. The variable speed bending machine according to claim 6, characterized in that, The variable speed bending machine is equipped with a high-speed low-torque mode, which is configured such that the first clutch is disengaged and the second clutch is engaged.
8. The variable speed bending machine according to claim 6, characterized in that, The variable speed bending machine is equipped with a low speed and high torque mode, wherein the low speed and high torque configuration is as follows: the first clutch is engaged and the second clutch is disengaged.
9. The variable speed bending machine according to claim 2, characterized in that, The pressing component is a ball screw, the input end of which is connected to the planetary gear support, and the output end of which is fixed to the bending mechanism.
10. The variable speed bending machine according to claim 2, characterized in that, The drive component is a servo motor, and the output shaft of the servo motor is connected to the gearbox shaft.