A limiting device for a hydraulic press

Abstract

This utility model relates to the technical field of limiting devices, and discloses a limiting device for a hydraulic press, including a device body. A lifting groove is formed on the inner bottom surface of the device body. A slide rail is longitudinally fixed near the center of the inner bottom surface of the lifting groove. A slider is slidably connected to the top of the slide rail. A lead screw is rotatably connected near the center between the inner surface walls of the front and rear sides of the lifting groove, and the lead screw is threadedly connected to the slider. A motor is fixedly installed on the outer front surface of the device body near the bottom edge, and the output shaft of the motor is fixedly welded to the front end of the lead screw. This utility model solves the problem that traditional limiting devices generally limit the extension inside the hydraulic cylinder to prevent the hydraulic rod from sliding beyond the predetermined stroke, but once a malfunction occurs, it can easily damage the core components, making repair difficult and costly, thus reducing the practicality of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of limiting device technology, specifically a limiting device for a hydraulic press. Background Technology

[0002] With the development of the manufacturing industry, the market demands higher and higher product quality. In the hydraulic press processing, without an effective limiting device to accurately control the position of the slide, it is easy to cause problems such as deviation in processing dimensions and non-compliance with product shape requirements, thus affecting the stability of product quality. The limiting device can ensure that each processing is carried out in the same accurate position, which greatly improves the consistency and pass rate of products. Different processing tasks may require the hydraulic press to operate at different stroke positions. The limiting device can easily adjust and set the end point of the slide stroke, enabling the hydraulic press to flexibly adapt to various complex processing requirements and expand the application range of the hydraulic press.

[0003] When using limit devices for hydraulic presses, traditional limit devices generally limit the extension inside the hydraulic cylinder to prevent the hydraulic rod from sliding beyond the predetermined stroke. However, once a malfunction occurs, it can easily damage the core components, making repairs difficult and costly, thus reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a limiting device for hydraulic presses, in order to solve the problem that traditional limiting devices mentioned in the background art generally limit the extension inside the hydraulic cylinder to prevent the hydraulic rod from sliding beyond the predetermined stroke. However, once a malfunction occurs, it is easy to damage the core components, which not only makes maintenance difficult but also results in a high maintenance budget, thereby reducing the practicality of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a limiting device for a hydraulic press, comprising a device body, a lifting groove being provided on the inner bottom surface of the device body, a slide rail being longitudinally fixedly arranged near the center of the inner bottom surface of the lifting groove, a slider being slidably connected to the top of the slide rail, a lead screw being rotatably connected between the inner surface walls of the front and rear sides of the lifting groove near the center, and the lead screw being threadedly connected to the slider, and a motor being fixedly installed on the edge near the bottom of the front outer surface of the device body, and the output shaft of the motor being fixedly welded to the front end of the lead screw.

[0006] In a preferred embodiment, a fixed short rod is fixedly connected to both outer surfaces of the slider near the center, and a roller is rotatably connected to the outer surface of the two fixed short rods near the edge of their opposite ends.

[0007] In a preferred embodiment, telescopic rods are fixedly connected to the bottom surface of the lifting trough near the four corners, and a pressure-bearing platform is fixedly connected between the tops of the four telescopic rods.

[0008] In a preferred embodiment, the pressure platform is slidably engaged with the lifting groove, and transmission side plates are fixedly connected to the bottom edge of the pressure platform near the outer surfaces on both sides.

[0009] In a preferred embodiment, inclined grooves are provided on both outer surfaces of the two transmission side plates, and the inclined grooves slide and engage with the rollers.

[0010] In a preferred embodiment, a hydraulic telescopic cylinder is fixedly connected to the inner top surface of the main body of the device near the center, and a hydraulic block is fixedly connected to the bottom end of the hydraulic telescopic cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention first activates a hydraulic telescopic cylinder. The extension of the cylinder causes a hydraulic block to slide downwards, pressing objects placed on a pressure platform. When the objects to be pressed are of varying heights, the motor is activated. The rotation of the motor's output shaft drives a lead screw, which in turn causes a slider to slide back and forth on a slide rail. This sliding motion of the slider synchronously drives a fixed short rod to slide back and forth, allowing the roller to slide back and forth within a chute. The rotatable connection between the roller and the fixed short rod reduces friction between them, making the sliding adjustment process more convenient. When the roller slides forward, the chute causes the transmission side plate and the pressure platform to slide downwards. Conversely, when the slider causes the fixed short rod and roller to slide backwards, the chute causes the transmission side plate and the pressure platform to slide upwards. This design avoids limiting the extension of the hydraulic telescopic cylinder, preventing damage to the core components of the equipment during prolonged use and improving its practicality. Attached Figure Description

[0013] Figure 1 This utility model provides a front-view three-dimensional structural diagram of a limiting device for a hydraulic press;

[0014] Figure 2 This utility model provides a top view cross-sectional three-dimensional structural diagram of a limiting device for a hydraulic press;

[0015] Figure 3 This utility model provides a side view sectional three-dimensional structural diagram of a limiting device for a hydraulic press;

[0016] Figure 4 This utility model proposes a limiting device for a hydraulic press. Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Main body of the device; 2. Lifting groove; 3. Slide rail; 4. Slider; 5. Lead screw; 6. Motor; 7. Fixed short rod; 8. Roller; 9. Telescopic rod; 10. Pressure plate; 11. Transmission side plate; 12. Inclined groove; 13. Hydraulic telescopic cylinder; 14. Hydraulic block. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a limiting device for a hydraulic press, including a device body 1. The bottom surface of the device body 1 is provided with a lifting groove 2, which provides an adjustable operating space for the pressure platform 10. A slide rail 3 is longitudinally fixed near the center of the bottom surface of the lifting groove 2. The slide rail 3 increases the stability of the slider 4 through the limiting grooves on both sides. The top of the slide rail 3 is slidably connected to the slider 4. The sliding of the slider 4 can synchronously drive the fixed short rod 7 to slide back and forth. A lead screw 5 is rotatably connected between the inner walls of the front and rear sides of the lifting groove 2 near the center, and the lead screw 5 is threaded through the slider 4. The rotation of the lead screw 5 can drive the slider 4 to slide back and forth on the slide rail 3. A motor 6 is fixedly installed on the edge of the front outer surface of the device body 1 near the bottom, and the output shaft of the motor 6 is fixedly welded to the front end of the lead screw 5. When the motor 6 is started, the rotation of the output shaft of the motor 6 can drive the lead screw 5 to rotate synchronously.

[0021] Fixed short rods 7 are fixedly connected to the outer surfaces of both sides of the slider 4 near the center. Rollers 8 are rotatably connected to the outer surfaces of the two fixed short rods 7 near the opposite edge. The sliding of the fixed short rods 7 can drive the rollers 8 to slide inside the inclined groove 12. The rotatable connection between the rollers 8 and the fixed short rods 7 reduces friction during the sliding adjustment of the rollers 8 and the inclined groove 12, making it more convenient. Telescopic rods 9 are fixedly connected to the bottom surface of the lifting groove 2 near the four corners. The telescopic rods 9 ensure the stability of the pressure platform 10 during lifting. The pressure platform 10 is fixedly connected between the tops of the four telescopic rods 9. The up and down lifting of the pressure platform 10 can avoid problems when encountering items of different heights that need to be pressed. The hydraulic block 14 is provided with a suitable pressing distance to avoid damage caused by excessive stretching of the hydraulic telescopic cylinder 13. The pressure plate 10 and the lifting groove 2 are slidably engaged. The bottom of the pressure plate 10 is fixedly connected to the edges of the outer surfaces on both sides. The outer surfaces on both sides of the two transmission side plates 11 are provided with inclined grooves 12, and the inclined grooves 12 are slidably engaged with the rollers 8. With the setting of the transmission side plates 11 and the inclined grooves 12, when the slider 4 drives the fixed short rod 7 and the rollers 8 to slide forward, the inclined grooves 12 can drive the transmission side plates 11 and the pressure plate 10 to slide downward for adjustment. Conversely, when the slider 4 drives the fixed short rod 7 and the rollers 8 to slide backward, the inclined grooves 12 can allow the transmission side plates 11 and the pressure plate 10 to slide upward for adjustment.

[0022] A hydraulic telescopic cylinder 13 is fixedly connected to the top surface of the main body 1 near the center. A hydraulic block 14 is fixedly connected to the bottom end of the hydraulic telescopic cylinder 13. The extension and retraction of the hydraulic telescopic cylinder 13 can drive the hydraulic block 14 to adjust up and down synchronously. When it is necessary to press the items placed on the pressure platform 10, the extension of the hydraulic telescopic cylinder 13 can drive the hydraulic block 14 to slide down and press the items.

[0023] Working principle: When the hydraulic press is used with the limit device, the hydraulic telescopic cylinder 13 is first activated. The extension of the cylinder 13 causes the hydraulic block 14 to slide downwards, pressing the items placed on the pressure table 10. When the items to be pressed are of different heights, the motor 6 is activated. The rotation of the output shaft of the motor 6 drives the lead screw 5 to rotate. The rotation of the lead screw 5 causes the slider 4 to slide back and forth on the slide rail 3. This adjustment of the slider 4 synchronously drives the fixed short rod 7 to slide back and forth, thus causing the roller 8 to slide back and forth inside the inclined groove 12. The roller 8 and... The rotating connection of the fixed short rod 7 reduces friction between the roller 8 and the inclined groove 12, making sliding adjustment more convenient. When the roller 8 slides forward, the inclined groove 12 drives the transmission side plate 11 and the pressure plate 10 to slide downward. Conversely, when the slider 4 drives the fixed short rod 7 and the roller 8 to slide backward, the inclined groove 12 allows the transmission side plate 11 and the pressure plate 10 to slide upward. This avoids limiting the extension of the hydraulic telescopic cylinder 13, thus preventing damage to the core components of the equipment during prolonged use and improving the practicality of the equipment.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A limiting device for a hydraulic press, comprising a device body (1), characterized in that: The device body (1) has a lifting groove (2) on its inner bottom surface. A slide rail (3) is fixedly installed longitudinally near the center of the inner bottom surface of the lifting groove (2). A slider (4) is slidably connected to the top of the slide rail (3). A lead screw (5) is rotatably connected between the inner walls of the front and rear sides of the lifting groove (2) near the center. The lead screw (5) and the slider (4) are threaded through each other. A motor (6) is fixedly installed on the outer surface of the front side of the device body (1) near the bottom edge. The output shaft of the motor (6) is fixedly welded to the front end of the lead screw (5).

2. The limiting device for a hydraulic press according to claim 1, characterized in that: Both sides of the slider (4) are fixedly connected to a short rod (7) near the center, and the outer surfaces of the two short rods (7) are rotatably connected to a roller (8) near the edge of the opposite end.

3. A limiting device for a hydraulic press according to claim 1, characterized in that: Telescopic rods (9) are fixedly connected to the bottom surface of the lifting trough (2) near the four corners, and a pressure plate (10) is fixedly connected between the tops of the four telescopic rods (9).

4. A limiting device for a hydraulic press according to claim 3, characterized in that: The pressure plate (10) slides into the lifting groove (2), and transmission side plates (11) are fixedly connected to the bottom edge of the pressure plate (10) near the outer surfaces on both sides.

5. A limiting device for a hydraulic press according to claim 4, characterized in that: Both outer surfaces of the two transmission side plates (11) are provided with inclined grooves (12), and the inclined grooves (12) slide and engage with the rollers (8).

6. A limiting device for a hydraulic press according to claim 1, characterized in that: A hydraulic telescopic cylinder (13) is fixedly connected to the inner top surface of the main body (1) near the center, and a hydraulic block (14) is fixedly connected to the bottom end of the hydraulic telescopic cylinder (13).

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