A hydraulic high-precision bidirectional locking and expanding sleeve clamping tool

Abstract

The utility model discloses a kind of hydraulic high-precision bidirectional locking expansion sleeve clamping tool, it includes: two hydraulic rams, the bottom of the hydraulic ram is provided with support plate, the surface of the support plate is fixedly installed with two big gears, the inside of the support plate is provided with through opening, the both ends of the support plate are movably connected with support frame by shaft pin, the output end of two the hydraulic rams is fixedly installed with conical block and abutting plate respectively.The utility model is controlled by hydraulic drive and gear transmission double precision, can realize the stable positioning of expansion sleeve and bidirectional locking, while the support plate can be rotated, improve the operating range of processing, and conical block adapts different sizes of expansion sleeve, improve use efficiency, meet high-precision processing requirement, reduce product processing error.

Description

Technical Field

[0001] This utility model relates to the field of expansion sleeve technology, and in particular to a clamping tool for hydraulic high-precision bidirectional locking expansion sleeve. Background Technology

[0002] A shrink sleeve (also known as a shrinking sleeve or tensioning coupling sleeve) is a transmission component that uses the mechanical shrinking principle to achieve a keyless connection between a shaft and parts on the shaft (such as gears, pulleys, couplings, etc.). With its simple structure and reliable performance, it is widely used in many fields such as machinery manufacturing, mining equipment, textile machinery, and wind power equipment. Its core working principle is to generate radial pressure between the inner ring and the shaft and the outer ring and the hub by tightening high-strength bolts. The huge frictional force generated by the pressure is used to transmit torque, axial force or combined load, avoiding the stress concentration problem caused by traditional keyed connections at the shaft and hub mating points, and effectively protecting the service life of shaft parts. The machining of expansion sleeves requires a clamping device. Existing clamping devices are usually fixed clamps, and the position of the expansion sleeve cannot be adjusted after clamping, which leads to the need for re-clamping in subsequent machining. The clamping efficiency is low, and the existing clamps only clamp the surface, resulting in poor stability. Therefore, a hydraulic high-precision bidirectional locking clamping fixture for expansion sleeves is proposed. Utility Model Content

[0003] Therefore, it is necessary to provide a hydraulic high-precision bidirectional locking and tightening clamping fixture to address the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model solves the problems of poor appearance quality and low efficiency of concrete surface forming caused by human carelessness and the need to lift slurry during the rolling process, which creates footprints and wave pits of different depths.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hydraulic high-precision bidirectional locking and tightening clamping fixture includes: two hydraulic rods, a support plate at the bottom of each hydraulic rod, two large gears fixedly mounted on the surface of the support plate, an opening inside the support plate, and support frames movably connected to both ends of the support plate via pins. A conical block and a pressing plate are respectively fixedly mounted at the output ends of the two hydraulic rods. A moving groove is opened inside the conical block, and a sliding plate is fixedly connected to the outer side of the pressing plate. A driving mechanism is provided at the bottom of the support plate.

[0006] As a preferred embodiment of the hydraulic high-precision bidirectional locking and tightening clamping fixture provided by this utility model, the driving mechanism includes a motor, which is fixedly installed on the top of the support frame. The output end of the motor is fixedly connected to a worm gear, and a worm wheel meshes with the surface of the worm gear.

[0007] In a preferred embodiment of the hydraulic high-precision bidirectional locking and tightening clamping fixture provided by this utility model, the end of the worm gear away from the motor is movably connected to a reinforcing plate through a bearing seat, and the bottom of the reinforcing plate is fixedly connected to the top of the support frame.

[0008] In a preferred embodiment of the hydraulic high-precision bidirectional locking and tightening clamping fixture provided by this utility model, a crossbar is fixedly connected inside the worm gear, and both ends of the crossbar are movably connected to the positioning plate through bearing seats. The bottom of the positioning plate is fixedly connected to the top of the support frame.

[0009] As a preferred embodiment of the hydraulic high-precision bidirectional locking and tightening clamping fixture provided by this utility model, two small gears are fixedly installed on the surface of the crossbar, and the two small gears mesh with the large gear.

[0010] In a preferred embodiment of the hydraulic high-precision bidirectional locking and tightening sleeve clamping fixture provided by this utility model, the surface of the conical block is covered with a rubber layer, and the rubber layer is used in conjunction with the tightening sleeve.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a hydraulic high-precision bidirectional locking clamping fixture for a shrink sleeve. Through the dual precise control of hydraulic drive and gear transmission, it can achieve stable positioning and bidirectional locking of the shrink sleeve. At the same time, the rotatable support plate increases the operating range of the processing, and the conical block is adapted to shrink sleeves of different sizes, which improves the efficiency of use, meets the requirements of high-precision processing, and reduces product processing errors.

[0012] 2. The present invention provides a hydraulic high-precision bidirectional locking expansion sleeve clamping fixture. Through the rubber layer covering the surface of the conical block, it can increase the friction between the conical block and the expansion sleeve during clamping, improve the clamping firmness, and prevent the expansion sleeve from sliding during processing. On the other hand, it can avoid direct rigid contact between the conical block and the expansion sleeve, reduce scratch damage to the surface of the expansion sleeve, and is especially suitable for the processing requirements of high-precision expansion sleeves, ensuring that the appearance and precision of the product are not affected, and improving the stability of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the support plate structure provided by this utility model; Figure 2 A schematic diagram of the large gear structure provided for this utility model; Figure 3 A schematic diagram of the crossbar structure provided by this utility model; Figure 4 Provided by this utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 A schematic diagram of the movable slot structure provided by this utility model.

[0015] The markings in the diagram are explained as follows: 1. Hydraulic rod; 2. Support plate; 3. Large gear; 4. Through port; 5. Support frame; 6. Conical block; 7. Clamping plate; 8. Moving groove; 9. Sliding plate; 10. Drive mechanism; 11. Motor; 12. Worm gear; 13. Worm wheel; 14. Reinforcing plate; 15. Crossbar; 16. Small gear. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention. Example

[0017] Please refer to Figure 1-5A high-precision hydraulic bidirectional locking and tightening clamping fixture includes: two hydraulic rods 1, a support plate 2 at the bottom of the hydraulic rods 1, two large gears 3 fixedly mounted on the surface of the support plate 2, an opening 4 inside the support plate 2, and support frames 5 movably connected to both ends of the support plate 2 via pins. A conical block 6 and a pressing plate 7 are respectively fixedly mounted at the output ends of the two hydraulic rods 1. A moving groove 8 is opened inside the conical block 6, and a sliding plate 9 is fixedly connected to the outer side of the pressing plate 7. A drive mechanism 10 is provided at the bottom of the support plate 2, the drive mechanism 10 including a motor 11, and the motor 11 is fixedly mounted on the support frame 5. At the top, a worm gear 12 is fixedly connected to the output end of the motor 11. A worm wheel 13 meshes with the surface of the worm gear 12. A reinforcing plate 14 is movably connected to the end of the worm gear 12 away from the motor 11 through a bearing seat. The bottom of the reinforcing plate 14 is fixedly connected to the top of the support frame 5. A crossbar 15 is fixedly connected inside the worm wheel 13. Both ends of the crossbar 15 are movably connected to the positioning plate through bearing seats. The bottom of the positioning plate is fixedly connected to the top of the support frame 5. Two small gears 16 are fixedly installed on the surface of the crossbar 15. The two small gears 16 mesh with the large gear 3. The surface of the conical block 6 is covered with a rubber layer, which is used in conjunction with the expansion sleeve.

[0018] Preferably, by setting two hydraulic rods 1 to drive the conical block 6 and the clamping plate 7 respectively, and with the support plate 2 with the through 4 and the movable support frame 5, the conical structure of the conical block 6 can achieve precise positioning of the expansion sleeve, and the clamping plate 7 can form a bidirectional clamping force, which solves the problem of easy deviation of the traditional tooling with unidirectional clamping. The through 4 design facilitates the position adjustment of the expansion sleeve during installation, the movable support frame 5 can rotate the expansion sleeve, and the rotatable support plate 2 can be processed efficiently, which improves the processing efficiency. The overall structure takes into account both clamping stability and usage flexibility.

[0019] Preferably, in the drive mechanism 10, the motor 11 drives the worm wheel 13 to rotate through the worm gear 12, and then transmits power through the crossbar 15 to make the pinion 16 mesh with the large gear 3, thereby realizing the angle or position adjustment of the support plate 2. Compared with manual adjustment, this not only reduces the intensity of manual operation, but also ensures the adjustment accuracy through the precise control of the motor 11. The setting of the reinforcing plate 14 and the positioning plate enhances the structural stability of the drive mechanism 10, avoids the displacement of parts due to vibration during long-term use, and extends the service life of the tooling.

[0020] Preferably, the rubber layer covering the surface of the conical block 6 can, on the one hand, increase the friction with the expansion sleeve during clamping, improve the clamping firmness, and prevent the expansion sleeve from sliding during processing; on the other hand, it can avoid direct rigid contact between the conical block 6 and the expansion sleeve, reduce scratch damage to the surface of the expansion sleeve, and is especially suitable for the processing requirements of high-precision expansion sleeves, ensuring that the appearance and precision of the product are not affected, and improving the stability of use.

[0021] The usage process of the hydraulic high-precision bidirectional locking clamping device provided by this utility model is as follows: After the motor 11 is started, it drives the worm wheel 13 to rotate through the worm gear 12. The worm wheel 13 drives the crossbar 15 and the small gear 16 on the surface to rotate. The small gear 16 meshes with the large gear 3 on the support plate 2 to realize the adjustment of the angle or position of the support plate 2. Then, the two hydraulic rods 1 move respectively. The tapered block 6 at one end extends into the inside of the clamping sleeve through the cooperation of the moving groove 8 and the sliding plate 9 to achieve positioning. The abutment plate 7 at the other end forms abutment against the clamping sleeve from the outside. Combined with the anti-slip protection of the rubber layer, the bidirectional high-precision locking of the clamping sleeve is finally completed.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A hydraulic high-precision bidirectional locking and tightening clamping fixture, characterized in that, It includes: Two hydraulic rods (1) are provided with a support plate (2) at the bottom of the hydraulic rods (1). Two large gears (3) are fixedly installed on the surface of the support plate (2). An opening (4) is provided inside the support plate (2). Both ends of the support plate (2) are movably connected to a support frame (5) by a shaft pin. A conical block (6) and a pressing plate (7) are fixedly installed at the output ends of the two hydraulic rods (1). A moving groove (8) is provided inside the conical block (6). A sliding plate (9) is fixedly connected to the outside of the pressing plate (7). A driving mechanism (10) is provided at the bottom of the support plate (2).

2. The hydraulic high-precision bidirectional locking and tightening clamping fixture according to claim 1, characterized in that, The drive mechanism (10) includes a motor (11), which is fixedly mounted on the top of the support frame (5). The output end of the motor (11) is fixedly connected to a worm (12), and a worm wheel (13) meshes with the surface of the worm (12).

3. The hydraulic high-precision bidirectional locking and tightening clamping fixture according to claim 2, characterized in that, The end of the worm gear (12) away from the motor (11) is movably connected to a reinforcing plate (14) via a bearing seat, and the bottom of the reinforcing plate (14) is fixedly connected to the top of the support frame (5).

4. The hydraulic high-precision bidirectional locking and tightening clamping fixture according to claim 2, characterized in that, The worm gear (13) is internally fixedly connected to a crossbar (15), both ends of which are movably connected to the positioning plate through bearing seats. The bottom of the positioning plate is fixedly connected to the top of the support frame (5).

5. The hydraulic high-precision bidirectional locking and tightening clamping fixture according to claim 4, characterized in that, Two small gears (16) are fixedly installed on the surface of the crossbar (15), and the two small gears (16) mesh with the large gear (3).

6. The hydraulic high-precision bidirectional locking and tightening clamping fixture according to claim 1, characterized in that, The surface of the conical block (6) is covered with a rubber layer, which is used in conjunction with the expansion sleeve.

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