A feeding clamping structure

Abstract

The utility model discloses a kind of feeding clamping structures, including connecting plate, still including oil cylinder, guide plate, clamping plate, bearing, bearing pressing plate, mounting shaft and gyro wheel, the connecting plate is detachably connected with oil cylinder by bolt, the output end of the oil cylinder is fixedly connected with guide plate and coaxial center is arranged;The rear side of the guide plate is equipped with the slot of the groove of guide rail adaptation, the position of the connecting plate corresponding guide plate movement track is rotatably connected with mounting shaft;A kind of feeding clamping structure, each component is realized detachably connected by bolt, installation step is clear and definite, without professional tool or complex debugging can complete assembly, greatly reduce installation difficulty and artificial cost, installation mode improves the flexibility of equipment, it is convenient for production line quick deployment or reformation, and modular design makes spare part have good interchangeability, easily damaged part can be individually detached and replaced, without overall disassembly equipment, significantly shorten maintenance time, reduce the maintenance cost of user and equipment downtime loss.

Description

Technical Field

[0001] This utility model relates to the field of automatic feeding technology for machine tools, specifically a feeding and clamping structure. Background Technology

[0002] With the advancement of technology and the continuous development of industry, the manufacturing cost, performance, stability, and maintenance costs of equipment have become a focus of attention. Meanwhile, profiles, as a flexible and versatile material, are being used more and more widely. Profiles have relatively low operating costs, are easy and reliable to process and weld, and can save significant material and processing costs. Therefore, the clamping problem of equipment during profile processing has attracted much attention.

[0003] Currently, most automatic feeding equipment uses traditional structures driven by pneumatic or hydraulic cylinders for clamping channel steel and angle steel. However, the transmission links of existing mechanisms are generally quite complex. When clamping large profiles, the required clamping force needs to be transmitted to the power source through multiple sets of connecting parts. This multi-node transmission method causes key components such as connecting shafts to be subjected to forces far exceeding the design threshold, making them prone to deformation or breakage. Especially in high-frequency, high-intensity continuous operation scenarios, the fatigue damage of components accelerates, the equipment failure rate remains high, and production continuity is severely restricted.

[0004] From a maintenance and adaptability perspective, traditional clamping structures have a high proportion of customized parts, and most adopt integrated welding or nested designs, lacking modular disassembly capabilities. Once a part is damaged, it cannot be replaced individually; the entire clamping unit must be replaced. This not only increases the procurement and inventory costs of spare parts but also prolongs equipment downtime due to disassembly, replacement, and reassembly processes, further amplifying production losses. Furthermore, clamping force adjustment relies on complex mechanical fine-tuning structures. For profiles of different specifications and materials, the equipment must be disassembled multiple times to adjust the transmission ratio or force points, making operation cumbersome and difficult to guarantee adjustment accuracy, resulting in extremely poor flexibility in adapting to different working conditions.

[0005] Therefore, this utility model provides a feeding clamping structure to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a feeding clamping structure that solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a feeding clamping structure, including a connecting plate, a hydraulic cylinder, a guide plate, a clamping plate, a bearing, a bearing pressure plate, a mounting shaft, and rollers. The hydraulic cylinder is detachably connected to the connecting plate via bolts. The output end of the hydraulic cylinder is fixedly connected to the guide plate and coaxially arranged. A slot adapted to a guide rail is provided on the rear side of the guide plate. A mounting shaft is rotatably connected to the connecting plate at a position corresponding to the guide plate's movement trajectory. The mounting shaft is rotatably connected to the middle of the clamping plate, allowing the clamping plate to rotate around the mounting shaft in a lever-like manner. A bearing is embedded at one end of the clamping plate near the guide plate, and the outer ring of the bearing rolls in contact with the side wall of the guide plate, reducing frictional resistance during relative movement between the clamping plate and the guide plate. A roller is rotatably connected to one end of the clamping plate near the hydraulic cylinder. A bearing pressure plate is rotatably connected to the guide plate via a spring mounting shaft. The bearing pressure plate provides elastic pressure to the bearing, ensuring that the bearing always fits against the side wall of the guide plate.

[0008] Furthermore, a connecting block is detachably connected to the connecting plate by bolts. The connecting block has a groove extending along the movement direction of the guide plate. The inner wall of the groove is provided with a wear-resistant coating to extend the service life of the connecting block.

[0009] Furthermore, a guide rail is slidably connected to the slide groove, and the guide rail is bolted to the groove on the rear side of the guide plate. The oil cylinder is equipped with a power source.

[0010] Beneficial effects

[0011] This utility model provides a feeding clamping structure. Compared with the prior art, it has the following advantages:

[0012] (1) A feeding clamping structure in which each component is detachably connected by bolts. The installation steps are clear and straightforward. Assembly can be completed without professional tools or complex debugging, which greatly reduces the installation difficulty and labor costs. The installation method improves the flexibility of the equipment, making it easy to deploy or modify the production line quickly. The modular design makes the parts have good interchangeability. The vulnerable parts can be disassembled and replaced separately without disassembling the entire equipment, which significantly shortens the maintenance time and reduces the user's maintenance costs and equipment downtime losses.

[0013] (2) A feeding clamping structure, which combines hydraulic cylinder drive with lever principle, transmits force through rolling contact between guide plate and bearing to ensure that clamping plate retracts synchronously and achieves uniform clamping of workpiece; the elastic pressing design of bearing pressure plate avoids movement jamming, ensures smooth clamping process without impact, and improves position accuracy during feeding process.

[0014] (3) A feeding clamping structure in which the clamping plate and the guide plate achieve rolling friction through bearings, which greatly reduces wear compared with the traditional sliding friction structure; the wear-resistant coating on the inner wall of the connecting block groove further reduces the loss when the guide rail slides, and the detachable connection design facilitates the individual replacement of components, reducing maintenance costs.

[0015] (4) A feeding clamping structure that can be flexibly adapted to different clamping force requirements by adjusting parameters such as the mounting shaft diameter and the cylinder diameter, and is suitable for feeding scenarios of workpieces of various materials and sizes; at the same time, the structural design takes into account the usage requirements of different production environments, has good environmental adaptability, and can be widely used in various industrial scenarios such as automated production lines and assembly equipment. Attached Figure Description

[0016] Figure 1 This is a side view of the overall device structure of this utility model;

[0017] Figure 2 This is a structural diagram of the overall device of this utility model;

[0018] Figure 3 This is a front view of the overall device structure of this utility model;

[0019] Figure 4 This is a top view of the overall device structure of this utility model;

[0020] Figure 5 This is a side view of the bearing pressure plate structure of this utility model;

[0021] Figure 6 This is a side view of the guide plate structure of this utility model;

[0022] Figure 7 This is a side view of the clamping plate structure of this utility model;

[0023] Figure 8 This is the utility model Figure 2 Enlarged view of part A;

[0024] Figure 9 This is the utility model Figure 3 Enlarged view of section B;

[0025] Figure 10 This is the utility model Figure 4 Enlarged view of section C.

[0026] In the diagram: 1. Hydraulic cylinder; 2. Guide plate; 3. Clamping plate; 4. Bearing; 5. Bearing pressure plate; 6. Mounting shaft; 7. Guide rail; 8. Connecting block; 9. Roller; 10. Connecting plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Please see Figure 1-10 A feeding clamping structure includes a connecting plate 10, a hydraulic cylinder 1, a guide plate 2, a clamping plate 3, a bearing 4, a bearing pressure plate 5, a mounting shaft 6, and rollers 9. The hydraulic cylinder 1 is detachably connected to the connecting plate 10 by bolts. The output end of the hydraulic cylinder 1 is fixedly connected to the guide plate 2 and coaxially arranged. The rear side of the guide plate 2 has a slot adapted to the guide rail 7. The mounting shaft 6 is rotatably connected to the connecting plate 10 at a position corresponding to the movement trajectory of the guide plate 2. The mounting shaft 6 is rotatably connected to the middle of the clamping plate 3. The clamping plate 3 can rotate around the mounting shaft 6 in a lever-like manner; a bearing 4 is embedded in the end of the clamping plate 3 near the guide plate 2, and the outer ring of the bearing 4 rolls in contact with the side wall of the guide plate 2 to reduce the frictional resistance when the clamping plate 3 and the guide plate 2 move relative to each other; a roller 9 is rotatably connected to the end of the clamping plate 3 near the oil cylinder 1; a bearing pressure plate 5 is rotatably connected to the guide plate 2 through a spring mounting shaft, and the bearing pressure plate 5 can elastically press the bearing 4 to ensure that the bearing 4 is always in contact with the side wall of the guide plate 2.

[0030] A connecting block 8 is detachably connected to the connecting plate 10 by bolts. The connecting block 8 has a groove extending along the movement direction of the guide plate 2. The inner wall of the groove is provided with a wear-resistant coating to extend the service life of the connecting block 8.

[0031] A guide rail 7 is slidably connected to the groove, and the guide rail 7 is bolted to the groove on the rear side of the guide plate 2.

[0032] Work process:

[0033] Clamping action process:

[0034] When the hydraulic cylinder 1 outputs power to push the guide plate 2 to move horizontally to the right along the guide rail 7, the side wall of the guide plate 2 comes into contact with the bearing 4 at the end of the clamping plate 3 and generates a thrust. Since the clamping plate 3 forms a lever-type rotating structure with the connecting plate 10 through the mounting shaft 6 in the middle, under the action of the thrust, the clamping plate 3 rotates around the mounting shaft 6, and its front end retracts inward.

[0035] During this process, the clamping plates 3 on both the upper and lower sides move synchronously under the push of the guide plate 2, and the bearing 4 rolls along the side wall of the guide plate 2. Rolling friction replaces sliding friction, significantly reducing the movement resistance. At the same time, the bearing pressure plate 5 on the guide plate 2 always maintains contact with the bearing 4 under the elastic force of the spring mounting shaft, forming elastic pressure to ensure that the bearing 4 is tightly fitted with the side wall of the guide plate 2, avoiding relative sliding or jamming, and ensuring the smoothness of the clamping action. When the guide plate 2 moves to the preset stroke position, the roller 9 at the front end of the clamping plate 3 contacts the surface of the workpiece to be clamped and forms a stable clamp, completing the clamping action.

[0036] Release process:

[0037] When the hydraulic cylinder 1 drives the guide plate 2 to move horizontally to the left along the guide rail 7, the thrust of the guide plate 2 on the bearing 4 is gradually released. At this time, the clamping plate 3 below rotates naturally around the mounting shaft 6 under its own weight, and the bearing 4 at its end rolls backward synchronously with the movement of the guide plate 2, causing the front end of the clamping plate 3 to slowly lift upward.

[0038] The upper clamping plate 3, under the elastic pressure of the bearing pressure plate 5, maintains the contact between the bearing 4 and the side wall of the guide plate 2, and gradually rotates in the opposite direction around the mounting shaft 6 as the guide plate 2 moves. Throughout the release process, the movements of the upper and lower clamping plates 3 remain symmetrical and coordinated to avoid unnecessary friction or impact on the workpiece. When the guide plate 2 returns to its initial position, the front end of the clamping plate 3 fully opens, releasing the clamp on the workpiece and completing the release action.

[0039] Clamping force adjustment instructions:

[0040] This structure controls clamping force through the output force of cylinder 1 combined with the lever principle. In scenarios requiring high clamping force, the rigidity of the structure can be increased by increasing the diameter of the mounting shaft 6, or a larger diameter cylinder 1 can be selected to increase the output thrust. By adjusting these parameters, this structure can meet the feeding and clamping needs of most industrial production scenarios while maintaining the stability and reliability of the operation.

[0041] The hydraulic cylinder 1 pushes the guide plate 2 to move horizontally to the right. As the clamping plate 3 rotates around the mounting shaft 6, the bearing 4 is pushed up and down by the guide plate 2, the front end of the clamping plate 3 is clamped, and the bearing pressure plate 5 is slightly moved by the bearing 4 around the mounting position.

[0042] The hydraulic cylinder 1 pushes the guide plate 2 to move horizontally to the left. At this time, due to its own weight, the lower clamping plate 3, which is equipped with a bearing, moves backward along with the guide plate 2 and slowly lifts upward. The bearing pressure plate 5 always presses against the bearing installed on the upper clamping plate 3, so that the bearing is always close to the guide plate 2. The front end of the clamping plate 3 is released.

[0043] When a large clamping force is required, the shaft diameter of the rotating shaft and the cylinder diameter of the hydraulic cylinder 1 can be appropriately increased. This structure can meet the clamping requirements in most cases.

[0044] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding clamping structure, comprising a connecting plate (10), characterized in that, It also includes a hydraulic cylinder (1), a guide plate (2), a clamping plate (3), a bearing (4), a bearing pressure plate (5), a mounting shaft (6), and rollers (9). The hydraulic cylinder (1) is detachably connected to the connecting plate (10) by bolts. The output end of the hydraulic cylinder (1) is fixedly connected to the guide plate (2) and coaxially arranged. The rear side of the guide plate (2) has a slot adapted to the guide rail (7). The mounting shaft (6) is rotatably connected to the connecting plate (10) at the position corresponding to the movement trajectory of the guide plate (2). The mounting shaft (6) is rotatably connected to the middle of the clamping plate (3), so that the clamping plate (3) The clamping plate (3) can be rotated around the mounting shaft (6) in a lever-like manner; a bearing (4) is embedded in one end of the clamping plate (3) near the guide plate (2), and the outer ring of the bearing (4) rolls in contact with the side wall of the guide plate (2) to reduce the frictional resistance when the clamping plate (3) and the guide plate (2) move relative to each other; a roller (9) is rotatably connected to one end of the clamping plate (3) near the oil cylinder (1); a bearing pressure plate (5) is rotatably connected to the guide plate (2) through a spring mounting shaft, and the bearing pressure plate (5) can elastically press the bearing (4) to ensure that the bearing (4) is always in contact with the side wall of the guide plate (2).

2. The feeding clamping structure according to claim 1, characterized in that: The connecting plate (10) is detachably connected to a connecting block (8) by bolts. The connecting block (8) has a groove extending along the movement direction of the guide plate (2). The inner wall of the groove is provided with a wear-resistant coating.

3. The feeding clamping structure according to claim 2, characterized in that: A guide rail (7) is slidably connected to the groove, and the guide rail (7) is bolted to the groove on the back side of the guide plate (2).

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