A slider drive mechanism for a press and a press

Abstract

The utility model discloses a sliding block drive mechanism and pressure machine for pressure machine, which is used for driving worm gear adjusting mechanism, including drive motor and transmission system, drive motor fixed mounting is in the inside of sliding block, and transmission system includes setting one driving wheel, two driven wheels and the flexible member around them in the outside of sliding block, and the output of drive motor is drivingly connected with the driving wheel, and the rotation center of two driven wheels is coaxial with the axis of two worms of worm gear adjusting mechanism respectively, and the driving wheel drives two driven wheels synchronous rotation through the flexible member, the advantage is that it will drive motor and transmission system scatter built -in and external, and effectively solved the whole sliding block drive mechanism difficultly arranges in the compact sliding block's problem.

Description

Technical Field

[0001] This utility model relates to a slide control technology for a press and a mechanical press technology, and in particular to a slide transmission mechanism for a press and a press. Background Technology

[0002] The slide of a mechanical press needs to have a height adjustment function to adapt to different molds. The height adjustment of the slide is directly driven by the slide transmission device. Specifically, a brake motor is installed in the slide. By applying torque to the small sprocket or small synchronous belt pulley, it makes it rotate at high speed. Then, the large sprocket or large synchronous belt pulley is driven to rotate through the chain or synchronous belt. After the large sprocket or large synchronous belt pulley decelerates, the torque is transmitted to the worm gear and saw teeth behind it through the transmission shaft, thereby realizing the up and down mold adjustment transmission of the slide.

[0003] Chinese utility model patent CN201300553Y discloses a slide transmission device for a press, which uses synchronous belt pulleys instead of gears and sprockets to solve problems such as low transmission accuracy and the need for a lubrication system. The device includes a bracket fixed to the slide and a reducer. A power shaft and a transmission shaft are fixed to the bracket, and synchronous pulleys are fixed to the power shaft and transmission shaft respectively. A synchronous belt connects the two pulleys. The power shaft is connected to the reducer via a coupling, and transmission bevel gearboxes are symmetrically fixed to both ends of the transmission shaft. This device integrates the brake motor and the entire transmission system inside the slide, which places high demands on the internal space of the slide.

[0004] As customers demand higher rigidity in presses, compact, high-tonnage, and highly rigid slides are increasingly emerging. The internal space of these compact slides is extremely limited, rendering existing press slide drive systems (such as the integrated drive system disclosed in CN201300553Y) unsuitable. Furthermore, while horizontal brake motors are preferred for press slide drive systems due to their high power and torque, their larger size leaves insufficient space for sprockets when installed within these compact slides.

[0005] Therefore, there is an urgent need for a new distributed transmission layout scheme that can rationally arrange the horizontal brake motor and transmission system (such as sprocket) inside and outside the slider without sacrificing transmission performance and torque, thus making it suitable for compact sliders. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a slide transmission mechanism for a press and a press, which separates the drive motor and transmission system into the internal and external locations, effectively solving the problem that the entire slide transmission mechanism is difficult to arrange in a compact slide.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a slider transmission mechanism for a press, which is used to drive a worm gear adjustment mechanism, comprising a drive motor and a transmission system, characterized in that: the drive motor is fixedly installed inside the slider, the transmission system includes a driving wheel, two driven wheels and a flexible member surrounding them, the driving wheel is connected to the output end of the drive motor, the rotation centers of the two driven wheels are respectively coaxial with the axes of the two worms of the worm gear adjustment mechanism, and the driving wheel drives the two driven wheels to rotate synchronously through the flexible member.

[0008] Two driven wheels are distributed on either side of the driving wheel, with the axes of the two driven wheels located in a first horizontal plane and the axis of the driving wheel located in a second horizontal plane. The first horizontal plane is higher than the second horizontal plane. Here, the two driven wheels and one driving wheel are arranged in an inverted triangle, further optimizing the spatial structure of the external transmission component. This makes its arrangement outside the slider more compact and rational. This layout not only saves space but also naturally forms a wrap-around angle that is beneficial for transmission. While ensuring transmission function, it minimizes the occupation of external space and avoids interference with other components of the press.

[0009] The transmission system also includes at least one tensioning wheel, which is located outside the slider and presses against the flexible component to adjust its tension. The addition of the tensioning wheel ensures that the external flexible transmission (chain) remains taut throughout operation, which is crucial for the reliable and stable operation of the external transmission system.

[0010] The number of tensioning rollers is two, distributed on both sides of the drive roller, and the axes of the two tensioning rollers are located within a third horizontal plane, which is situated between the first and second horizontal planes. By employing two symmetrically arranged tensioning rollers and confining them between specific horizontal planes, the most effective and balanced tensioning of the flexible component is achieved. This arrangement ensures the long-term stability and high reliability of the transmission system under external operating conditions.

[0011] The output end of the drive motor is connected to the axle of the drive wheel via a detachable coupling mechanism. This detachable coupling mechanism enables modular and rapid assembly and disassembly between the built-in drive motor and the external transmission system. This greatly facilitates maintenance and replacement of the drive or transmission components within a compact space, solving the new problem of inconvenient maintenance caused by the compact layout. The detachable coupling mechanism can be a chain coupling, which can withstand large torques, allows for certain installation errors, provides reliable transmission, and is easy to maintain.

[0012] The flexible component is a chain, and the driving wheel, driven wheel, and tension wheel are sprockets that cooperate with the flexible component. Here, it is clarified that the external transmission system adopts the "chain + sprocket" flexible transmission method, which is most suitable for external placement.

[0013] A press includes a slide block and a worm gear adjustment mechanism for adjusting the height of the slide block, characterized in that the worm gear adjustment mechanism is driven by the aforementioned slide block transmission mechanism. Because this press employs the aforementioned sliding transmission mechanism, the internal space of the slide block is utilized to the fullest extent, integrating the worm gear adjustment mechanism and the drive motor.

[0014] The driven wheel in the slider transmission mechanism is coaxially arranged with the worm in the worm gear adjustment mechanism.

[0015] Compared with the prior art, the advantages of this utility model are: By adopting a spatial layout of "drive motor built-in, transmission system external" and introducing two driven wheels, most of the transmission components (such as drive wheel, driven wheel, and flexible parts) required for the drive worm gear adjustment mechanism are successfully moved out of the interior of the slider. This fundamentally solves the technical dilemma that traditional designs cannot accommodate the entire slider transmission system inside a compact slider, making the slider transmission mechanism suitable for compact sliders with extremely limited internal space.

[0016] It perfectly solves the installation problem of high-power horizontal brake motor in a compact slider, meeting the design requirements of modern presses for large tonnage, high rigidity, and small size. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the slider transmission mechanism of this utility model after it is installed on the slider; Figure 2 for Figure 1 Top view; Figure 3 for Figure 1 The main view; Figure 4 for Figure 3 A partial schematic diagram of the sectional view; Figure 5 This is a three-dimensional structural diagram of the slider transmission mechanism of this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] Implementation Case 1: This embodiment presents a slide transmission mechanism for a press, as shown in the figure. It is suitable for compact slides and is used to drive a worm gear adjustment mechanism (not shown in the figure). It includes a high-power drive motor 1 and a transmission system 2. The high-power drive motor 1 is fixedly mounted on the inner bottom surface of the slide 9. The transmission system 2 includes a driving wheel 21, two driven wheels 22, and a flexible member 23 surrounding them, all located outside the slide 9. The driving wheel 21 is connected to the output end of the high-power drive motor 1. The rotation centers of the two driven wheels 22 are coaxially arranged with the axes of the two worms of the worm gear adjustment mechanism. The high-power drive motor 1 drives the driving wheel 21 to drive the two driven wheels 22 to rotate synchronously through the flexible member 23.

[0020] As a preferred embodiment, two driven wheels 22 are distributed on both sides of the driving wheel 21, with the axes of the two driven wheels 22 located in a first horizontal plane and the axis of the driving wheel 21 located in a second horizontal plane. The first horizontal plane is higher than the second horizontal plane. Here, the two driven wheels 22 and one driving wheel 21 are arranged in an inverted triangle, which further optimizes the spatial structure of the external transmission component, making its arrangement outside the slider 9 more compact and reasonable. This layout not only saves space but also naturally forms a wrap-around angle that is conducive to transmission. While ensuring the transmission function, it minimizes the occupation of external space and avoids interference with other components of the press.

[0021] As a preferred embodiment, the transmission system 2 also includes two tensioning wheels 24, which are located outside the slider 9 and press against the flexible member 23 to adjust their tension. The addition of the tensioning wheels 24 ensures that the external flexible transmission (chain) remains taut throughout operation, which is crucial for ensuring the reliable and stable operation of the external transmission system.

[0022] As a preferred embodiment, two tensioning pulleys 24 are distributed on both sides of the drive pulley 21, and the axes of the two tensioning pulleys 24 are located within a third horizontal plane, which is situated between the first and second horizontal planes. Here, by employing two symmetrically arranged tensioning pulleys 24 and confining them to a specific horizontal plane, the most effective and balanced tensioning of the flexible component 23 is achieved. This arrangement ensures the long-term stability and high reliability of the transmission system 2 under external operating conditions.

[0023] Further specifying, the output end of the high-power drive motor 1 is connected to the inner end of the axle 211 of the drive wheel 21 via a detachable coupling mechanism 25. Here, the detachable coupling mechanism 25 enables modular and rapid assembly and disassembly between the built-in drive motor 1 and the external transmission system 2. This greatly facilitates the maintenance and replacement of the drive or transmission components within a compact space, solving the new problem of inconvenient maintenance caused by the compact layout. The detachable coupling mechanism 25 can be a chain coupling, specifically a double-row chain coupling, which can withstand large torque, allows for certain installation errors, provides reliable transmission, and is easy to maintain.

[0024] Further specifying, the flexible component 23 is a chain, and the driving wheel 21, driven wheel 22, and tension wheel 24 are sprockets that cooperate with the flexible component 23. Here, it is clarified that the external transmission system 2 adopts the flexible transmission method of "chain + sprocket", which is most suitable for external placement.

[0025] In the specific design, a first bearing assembly 26 and a second bearing assembly (not shown in the figure) are installed on the rear plate 91 of the slider 9. The axle 211 of the driving wheel 21 is rotatably supported on the rear plate 91 of the slider 9 via the first bearing assembly 26, and the axle of the driven wheel 22 is rotatably supported on the rear plate 91 of the slider 9 via the second bearing assembly. The inner end of the axle of the driven wheel 22 can be connected to the end of the worm of the worm gear adjusting mechanism via a rigid coupling (not shown in the figure). One end of the axle of the tension wheel 24 is fixedly connected to the rear plate 91 of the slider 9, and the other end is connected to the tension wheel 24 via a third bearing assembly (not shown in the figure). The tension wheel 24 is mounted on a tension wheel shaft 241 via the third bearing assembly. The tension wheel shaft 241 is fixedly mounted on a movable adjusting plate 27. The adjusting plate 27 is mounted via an adjusting mechanism (not shown in the figure) located on the rear plate 91 of the slider 9. By driving the adjusting mechanism, the tension wheel 24 can be moved to tension the flexible member 23. The first bearing assembly 26 and the second bearing assembly have the same structure, both including a bearing housing 261 fixed to the rear plate 91 of the slider 9, a bearing 262 installed in the bearing housing 261, an inner retaining ring 263 and an outer retaining ring 264 for axial positioning of the bearing 262, and the axle of the driving wheel 21 or the driven wheel 22 supported in the bearing 262. The entire assembly adopts an outside-in assembly type, saving space. The third bearing assembly can also adopt a similar structure.

[0026] In this embodiment, the high-power drive motor 1 is a horizontal brake motor, which can be tightly locked to the inner bottom surface of the slider 9 by an external hexagonal screw on a fixed base during installation; the diameter of the driving wheel 21 is smaller than the diameter of the driven wheel 22.

[0027] When the height of slider 9 needs to be adjusted, the horizontal brake motor transmits torque to the drive wheel 21 through the chain coupling. The drive wheel 21 drives the driven wheel 22 to drive the worm gear through the flexible part 23, thereby realizing the up and down mold adjustment transmission of slider 9.

[0028] This design integrates the large horizontal brake motor internally, while placing most of the transmission components of the transmission system 2, such as the drive wheel 21, driven wheel 22, and flexible component 23, externally, perfectly resolving the layout conflict in a compact space.

[0029] Implementation Case 2: This embodiment presents a press comprising a slide block 9 and a worm gear adjustment mechanism for adjusting the height of the slide block 9. The worm gear adjustment mechanism is driven by the aforementioned slide block transmission mechanism, and the driven wheel 22 in the slide block transmission mechanism is coaxially arranged with the worm in the worm gear adjustment mechanism. Because this press utilizes the aforementioned sliding transmission mechanism, the internal space of the slide block 9 is maximized, integrating the worm gear adjustment mechanism and a high-power drive motor 1.

Claims

1. A slide transmission mechanism for a press, used to drive a worm gear adjusting mechanism, comprising a drive motor and a transmission system, characterized in that: The drive motor is fixedly installed inside the slider. The transmission system includes a driving wheel, two driven wheels, and a flexible member surrounding them, all located outside the slider. The driving wheel is connected to the output end of the drive motor. The rotation centers of the two driven wheels are coaxial with the axes of the two worms of the worm gear adjustment mechanism. The driving wheel drives the two driven wheels to rotate synchronously through the flexible member.

2. The slide block transmission mechanism for a press according to claim 1, characterized in that: The two driven wheels are distributed on both sides of the driving wheel, and the axes of the two driven wheels are located in a first horizontal plane, while the axis of the driving wheel is located in a second horizontal plane. The first horizontal plane is higher than the second horizontal plane.

3. A slide block transmission mechanism for a press according to claim 2, characterized in that: The transmission system also includes at least one tensioning wheel, which is disposed outside the slider and presses against the flexible member to adjust its tension.

4. A slide block transmission mechanism for a press according to claim 3, characterized in that: The number of tensioning wheels is two, and the two tensioning wheels are distributed on both sides of the driving wheel. The axes of the two tensioning wheels are located in a third horizontal plane, which is located between the first horizontal plane and the second horizontal plane.

5. A slide block transmission mechanism for a press according to claim 1, characterized in that: The output end of the drive motor is connected to the axle of the drive wheel via a detachable coupling mechanism.

6. A slide block transmission mechanism for a press according to claim 4, characterized in that: The flexible component is a chain, and the driving wheel, the driven wheel, and the tensioning wheel are sprockets that cooperate with the flexible component.

7. A press, comprising a slide block and a worm gear adjusting mechanism for adjusting the height of the slide block, characterized in that: The worm gear adjustment mechanism is driven by the slider transmission mechanism according to any one of claims 1 to 5.

8. A press according to claim 7, characterized in that: The driven wheel in the slider transmission mechanism is coaxially arranged with the worm in the worm gear adjustment mechanism.

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