Hydraulic clamp multi-station synchronous clamping structure
Patent Information
- Application Number
- CN202522132129.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-09
AI Technical Summary
1、在零件夹持加工过程中,固定基座上的模具通常只能针对单一零件进行操作
1、本实用新型通过单一液压杆二驱动滑动板及连接杆二、固定板和转环配合,利用转环上的倾斜槽同步推动多个连接杆一和挤压块径向内收,实现多个固定套内的工件同时、快速、精确地被夹紧在中心位置,显著提高了多零件加工效率。
Smart Images

Figure CN224701914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic clamping technology, and more specifically, it relates to a multi-station synchronous clamping structure for hydraulic clamps. Background Technology
[0002] The core value of a fixture lies in providing reliable workpiece clamping and positioning for machining, assembly, or welding. It firmly secures the workpiece in the desired position, effectively preventing displacement or vibration during machining, thereby ensuring the accuracy of the machining results. To match various workpieces, the configuration and specifications of fixtures can be customized.
[0003] Existing related technologies often have the following drawbacks: 1. During the part clamping and processing, the mold on the fixed base can usually only operate on a single part. This not only fails to achieve simultaneous clamping or efficient demolding of multiple parts, but also significantly increases the time and labor costs of processing a single part, ultimately leading to a reduction in the overall product clamping and processing efficiency.
[0004] 2. Currently, most fixtures rely on manual clamping. Due to variations in operator strength and fatigue, the clamping force is difficult to maintain consistently, directly affecting the stability of product processing accuracy and quality. Furthermore, manual operation can only handle one fixture at a time, severely limiting work efficiency.
[0005] 3. Existing fixture designs are often only compatible with specific part models. Once the critical dimensions of the part, such as its length, change, the machine must be stopped to replace the matching fixture, making the operation process cumbersome and time-consuming. In addition, after the parts are machined, there is generally a lack of convenient demolding or ejection mechanisms, making it difficult and inconvenient to remove the finished product from the fixture.
[0006] Therefore, there is an urgent need for a hydraulic clamping structure with multi-station synchronous clamping. Utility Model Content
[0007] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a multi-station synchronous clamping structure for hydraulic clamps to solve the technical problems mentioned in the background art.
[0008] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a multi-station synchronous clamping structure for a hydraulic clamp, comprising a mounting base, wherein two hydraulic rods are fixedly connected to the mounting base, and a support plate is fixedly connected to the telescopic ends of the two hydraulic rods. The support plate is embedded with multiple fixing sleeves, and circumferentially evenly spaced extrusion blocks are slidably connected to the fixing sleeves. A connecting rod is fixedly connected to each extrusion block, and a rotating ring is rotatably connected to the fixing sleeve. The rotating ring is provided with an inclined groove, and the connecting rod slides within an adjacent inclined groove.
[0009] The present invention is further configured such that the rotating ring is fixedly connected to a fixing plate, and the fixing plate is provided with a guide groove.
[0010] The present invention is further configured such that a connecting rod two is slidably connected within the guide groove.
[0011] The present invention is further configured such that the mounting base is fixedly connected to multiple guide posts, the guide posts passing through the support plate and the two being slidably connected.
[0012] The present invention is further configured such that the support plate is slidably connected to a sliding plate, and the sliding plate is fixedly connected to the connecting rod.
[0013] The present invention is further configured such that the support plate is provided with a through groove, and the sliding plate slides within the through groove.
[0014] The present invention is further configured such that a second hydraulic rod is fixedly connected to the lower side of the support plate, and the telescopic end of the second hydraulic rod is fixedly connected to the sliding plate.
[0015] The present invention is further configured such that multiple top posts are fixedly connected to the upper side of the mounting base, the number of top posts being the same as the number of fixing sleeves, and the top posts being located within the adjacent fixing sleeves.
[0016] (III) Beneficial Effects Compared with the prior art, this utility model provides a multi-station synchronous clamping structure for hydraulic clamps, which has the following beneficial effects: 1. This utility model uses a single hydraulic rod to drive a sliding plate and connecting rod 2, a fixed plate and a rotating ring to cooperate. The inclined groove on the rotating ring synchronously pushes multiple connecting rods 1 and extrusion blocks radially inward, so that the workpieces in multiple fixed sleeves are simultaneously, quickly and accurately clamped in the center position, which significantly improves the processing efficiency of multiple parts.
[0017] 2. This utility model eliminates manual operation and adopts hydraulic drive to control the clamping and releasing process, ensuring that the clamping force applied to each workpiece is uniform and consistent, effectively eliminating instability and clamping degree differences caused by human factors, ensuring the stability of processing accuracy and product quality, and improving the yield rate.
[0018] 3. This utility model provides a support benchmark for the workpiece through the top column design. With the help of the liftable support plate, the fixture moves down after processing to achieve automatic demolding, which is convenient for picking up the parts. By adjusting the extension length of the hydraulic rod, the relative position of the top column in the fixed sleeve can be changed, which can easily adapt to the clamping requirements of workpieces of different lengths. It has strong versatility and significantly reduces changeover time. Attached Figure Description
[0019] Figure 1 This is a front view of a multi-station synchronous clamping structure for a hydraulic clamp according to the present invention. Figure 2 This is a schematic diagram of the structure of the fixing sleeve and the rotating ring in this utility model; Figure 3 This is a cross-sectional view of the fixing sleeve and the rotating ring in this utility model; Figure 4 This is a cross-sectional view of the support plate in this utility model; Figure 5 This is a schematic diagram of the structure of the guide post and the top post in this utility model.
[0020] In the diagram: 1. Mounting base; 2. Hydraulic rod one; 3. Support plate; 4. Fixing sleeve; 5. Extrusion block; 6. Connecting rod one; 7. Rotary ring; 8. Inclined groove; 9. Fixing plate; 10. Guide groove; 11. Connecting rod two; 12. Guide post; 13. Sliding plate; 14. Through groove; 15. Hydraulic rod two; 16. Top column. Detailed Implementation
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0023] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0024] Please see Figures 1-5A multi-station synchronous clamping structure for a hydraulic clamp includes a mounting base 1. Two hydraulic rods 2 are fixedly connected to the mounting base 1. The telescopic ends of the two hydraulic rods 2 are jointly fixed to a support plate 3. Multiple fixing sleeves 4 are embedded in the support plate 3. The fixing sleeves 4 are slidably connected to circumferentially spaced pressing blocks 5. Each pressing block 5 is fixedly connected to a connecting rod 6. A rotating ring 7 is rotatably connected to the fixing sleeves 4. The rotating ring 7 is provided with inclined grooves 8, and the connecting rod 6 slides within adjacent inclined grooves 8. A fixing plate 9 is fixedly connected to the rotating ring 7. The fixing plate 9 is provided with guide grooves 10. Sliding connections are made within the guide grooves 10. There is a connecting rod 11; the mounting base 1 is fixedly connected to multiple guide posts 12, the guide posts 12 penetrate the support plate 3 and are slidably connected to it; the support plate 3 is slidably connected to a sliding plate 13, the sliding plate 13 is fixedly connected to the connecting rod 11; the support plate 3 is provided with a through groove 14, the sliding plate 13 slides in the through groove 14; the lower side of the support plate 3 is fixedly connected to a hydraulic rod 15, the telescopic end of the hydraulic rod 15 is fixedly connected to the sliding plate 13; the upper side of the mounting base 1 is fixedly connected to multiple top posts 16, the number of top posts 16 is the same as the number of fixed sleeves 4, and the top posts 16 are located in adjacent fixed sleeves 4.
[0025] The working principle of this utility model is as follows: The mounting base 1 is installed to the worktable with bolts. Then, the parts to be processed are placed into the fixed sleeve 4 in sequence. At this time, the lower part of the part is in contact with the upper end of the top column 16. The top column 16 provides support for the upper part. Then, the hydraulic rod 15 is activated. The telescopic end of the hydraulic rod 15 drives the sliding plate 13 to move to the right. The sliding plate 13 drives the connecting rod 11 to move to the right. The connecting rod 11 drives the fixed plate 9 to move to the right. At this time, the connecting rod 11 slides along the adjacent guide groove 10. The fixed plate 9 drives the rotating ring 7 to rotate along the adjacent fixed sleeve 4. The inclined groove 8 squeezes the connecting rod 6 inside, causing the connecting rod 6 to move closer to each other. The connecting rod 6 drives the extrusion block 5 to move synchronously. The six extrusion blocks 5 clamp and fix the parts in the fixed sleeve 4, and make the parts located in the center of the fixed sleeve 4. This realizes that multiple stations can clamp multiple workpieces at the same time, which improves the processing efficiency of the parts.
[0026] After the parts are processed, the telescopic end of the hydraulic rod 15 is reset, releasing the clamping block 5 from fixing the parts. The telescopic end of the hydraulic rod 2 is then controlled to move the support plate 3 downwards, which in turn moves the fixed sleeve 4 downwards, causing relative movement between the parts and the fixed sleeve 4. This allows the parts to be removed from the fixed sleeve 4, making it easier to pick them up. Then, the telescopic end of the hydraulic rod 2 is controlled to reset the support plate 3. The extension length of the telescopic end of the hydraulic rod 2 is adjusted according to the length of the parts, and the distance at which the top column 16 is inserted into the fixed sleeve 4 is adjusted, so that parts of different lengths can be inserted into the fixed sleeve 4.
[0027] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-station synchronous clamping structure for a hydraulic clamp, comprising a mounting base (1), characterized in that: The mounting base (1) is fixedly connected to two hydraulic rods (2), and the telescopic ends of the two hydraulic rods (2) are fixedly connected to a support plate (3). The support plate (3) is embedded with multiple fixing sleeves (4). The fixing sleeves (4) are slidably connected to circumferentially distributed extrusion blocks (5). The extrusion blocks (5) are fixedly connected to a connecting rod (6). The fixing sleeves (4) are rotatably connected to a rotating ring (7). The rotating ring (7) is provided with an inclined groove (8). The connecting rod (6) slides within an adjacent inclined groove (8).
2. The multi-station synchronous clamping structure for hydraulic clamps according to claim 1, characterized in that: The rotating ring (7) is fixedly connected to a fixing plate (9), and the fixing plate (9) is provided with a guide groove (10).
3. The multi-station synchronous clamping structure for a hydraulic clamp according to claim 2, characterized in that: A connecting rod two (11) is slidably connected inside the guide groove (10).
4. The multi-station synchronous clamping structure of a hydraulic clamp according to claim 3, characterized in that: The mounting base (1) is fixedly connected to multiple guide posts (12), which penetrate the support plate (3) and are slidably connected.
5. The multi-station synchronous clamping structure for a hydraulic clamp according to claim 4, characterized in that: The support plate (3) is slidably connected to a sliding plate (13), and the sliding plate (13) is fixedly connected to the connecting rod (11).
6. The multi-station synchronous clamping structure for a hydraulic clamp according to claim 5, characterized in that: The support plate (3) is provided with a through groove (14), and the sliding plate (13) slides within the through groove (14).
7. A multi-station synchronous clamping structure for a hydraulic clamp according to claim 6, characterized in that: A hydraulic rod 2 (15) is fixedly connected to the lower side of the support plate (3), and the telescopic end of the hydraulic rod 2 (15) is fixedly connected to the sliding plate (13).
8. A multi-station synchronous clamping structure for a hydraulic clamp according to claim 7, characterized in that: The upper side of the mounting base (1) is fixed with multiple top posts (16), the number of top posts (16) is the same as the number of fixing sleeves (4), and the top posts (16) are located inside the adjacent fixing sleeves (4).