Clamping device for supporting shaft production

Abstract

The utility model discloses a clamping device for supporting shaft production, which comprises a front arrangement plate, a rear arrangement plate and a bottom table, a round arrangement hole I is arranged on the front arrangement plate close to the middle end, and a round arrangement hole II is arranged on the rear arrangement plate close to the middle end. Supporting arc-shaped blocks I are arranged at the front end and the rear end of the bottom of the setting hole I and are connected through bolts, supporting arc-shaped blocks II are arranged at the front end and the rear end of the bottom of the setting hole II and are connected through bolts, and a hydraulic driver I is connected to the middle end of the top of the front side of the front setting plate through bolts; a plurality of hydraulic drivers and corresponding clamping rods on a front and back arrangement plate can clamp a supporting shaft in multiple directions, guarantee the machining precision and reduce the rejection rate, a bottom table is provided with a longitudinal guide rail, the front and back arrangement plate can move flexibly, the device can quickly adapt to supporting shafts with different lengths, the adjusting time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of support shaft production equipment, specifically a clamping device for support shaft production. Background Technology

[0002] In the field of mechanical manufacturing, the support shaft is a core component of the transmission system, and its machining accuracy directly affects the operational stability and reliability of the equipment. During the machining process of the support shaft, the clamping device is a key component to ensure machining accuracy.

[0003] Existing support shaft clamping devices have the following shortcomings: the clamping method is singular, mostly single-sided or double-sided clamping, which cannot form a uniform and stable clamping force on the shaft from multiple directions. This makes the support shaft prone to radial runout or axial movement during processing, making it difficult to meet the requirements of high-precision processing, resulting in a high scrap rate. The structural adjustment flexibility is insufficient. The clamping spacing of traditional devices is fixed or cumbersome to adjust, requiring the removal of bolts and replacement of shims to adapt to support shafts of different lengths. This not only wastes time but may also affect the positioning accuracy of the device due to repeated disassembly and assembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a clamping device for supporting shaft production. Multiple hydraulic drivers and corresponding clamping rods on the front and rear mounting plates can clamp the supporting shaft from multiple directions, ensuring processing accuracy and reducing scrap rate. The base is equipped with longitudinal guide rails, and the front and rear mounting plates can move flexibly to quickly adapt to supporting shafts of different lengths, saving adjustment time and improving production efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for supporting shaft production, comprising a front mounting plate, a rear mounting plate, and a base. A circular mounting hole one is provided near the middle of the front mounting plate, and a circular mounting hole two is provided near the middle of the rear mounting plate. Supporting arc-shaped blocks one are provided at both the front and rear ends of the bottom of the first mounting hole, and are connected by bolts. Supporting arc-shaped blocks two are provided at both the front and rear ends of the bottom of the second mounting hole, and are connected by bolts. A hydraulic actuator one is bolted to the middle of the top of the front side of the front mounting plate, a hydraulic actuator two is bolted to the left side of the front mounting plate near the middle, and a hydraulic actuator three is bolted to the right side of the front mounting plate near the middle.

[0008] Preferably, a hydraulic actuator four is bolted to the top center of the front side of the rear mounting plate, a hydraulic actuator five is bolted to the left side of the rear mounting plate near the center, and a hydraulic actuator six is ​​bolted to the right side of the rear mounting plate near the center.

[0009] Preferably, a front clamping rod 1 is provided at the bottom of the hydraulic actuator 1, a front clamping rod 2 is provided at the right end of the hydraulic actuator 2, and a front clamping rod 3 is provided at the left end of the hydraulic actuator 3.

[0010] Preferably, a rear clamping rod 1 is provided at the bottom of the hydraulic actuator 4, a rear clamping rod 2 is provided at the right end of the hydraulic actuator 5, and a rear clamping rod 3 is provided at the left end of the hydraulic actuator 6.

[0011] Preferably, a rectangular longitudinal guide rail one is embedded at the top left end of the base platform, and a rectangular longitudinal guide rail two is embedded at the top right end of the base platform.

[0012] Preferably, a slider mover 1 is bolted to the bottom left end of the front setting plate, and a slider mover 2 is bolted to the bottom right end of the front setting plate. The bottom of slider mover 1 is inserted into and connected to longitudinal guide rail 1, and the bottom of slider mover 2 is inserted into and connected to longitudinal guide rail 2.

[0013] Preferably, a slider mover three is bolted to the bottom left end of the rear mounting plate, and a slider mover four is bolted to the bottom right end of the rear mounting plate. The bottom of slider mover three is inserted into and connected to longitudinal guide rail one, and the bottom of slider mover four is inserted into and connected to longitudinal guide rail two.

[0014] (III) Beneficial Effects

[0015] This utility model provides a clamping device for supporting shaft production. It has the following advantages:

[0016] (1) This type of clamping device for producing support shafts has multiple hydraulic actuators on the front and rear mounting plates, respectively. The front mounting plate has hydraulic actuators one, two, and three, while the rear mounting plate has hydraulic actuators four, five, and six. Each hydraulic actuator is connected to a corresponding clamping rod, such as front clamping rod one, front clamping rod two, and front clamping rod three, as well as rear clamping rod one, rear clamping rod two, and rear clamping rod three. The multiple clamping rods can clamp the support shaft from multiple directions. When the support shaft being processed passes longitudinally through the mounting holes one and six, the clamping device can clamp the support shaft from multiple directions. When the second hole is placed on the surface, the hydraulic actuator controls the extension and retraction of each clamping rod three to tightly fit the surface of the support shaft, achieving multi-directional clamping and fixation. This effectively prevents the support shaft from shaking or shifting during processing, thus ensuring processing accuracy. When performing cutting, grinding, or other processing operations on the support shaft, stable clamping ensures the accuracy of processing dimensions, reduces the scrap rate caused by loose clamping, and improves product quality. The support arc block one at the bottom of the first hole and the support arc block two at the bottom of the second hole are connected by bolts, providing excellent support for the support shaft from below when it is first placed.

[0017] (2) The clamping device for producing support shafts has a base platform with longitudinal guide rail 1 and longitudinal guide rail 2 on top. The bottom of the front setting plate is connected to the longitudinal guide rails via slider mover 1 and slider mover 2, and the bottom of the rear setting plate is connected to the longitudinal guide rails via slider mover 3 and slider mover 4. This design allows the front and rear setting plates to move flexibly along the longitudinal guide rails. In actual production, the operator can easily adjust the distance between the front and rear setting plates according to the length of the support shaft and the processing requirements. When processing support shafts of different lengths, there is no need to disassemble and reinstall the clamping device. By simply moving the front and rear setting plates, the device can quickly adapt to support shafts of different sizes, greatly saving the time of adjusting the equipment and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This is a diagram showing the front mounting plate of this utility model moving backward along the guide rail.

[0020] Figure 3 This is a schematic diagram of the front and rear plates simulating the clamping support shaft of this utility model;

[0021] Figure 4 This is an independent display diagram of the front setting plate area of ​​this utility model.

[0022] In the diagram: 1. Front setting plate; 2. Setting hole one; 3. Rear setting plate; 4. Setting hole two; 5. Supporting arc block one; 6. Supporting arc block two; 7. Hydraulic actuator one; 8. Hydraulic actuator two; 9. Hydraulic actuator three; 10. Hydraulic actuator four; 11. Hydraulic actuator five; 12. Hydraulic actuator six; 13. Front clamping rod one; 14. Front clamping rod two; 15. Front clamping rod three; 16. Rear clamping rod one; 17. Rear clamping rod two; 18. Rear clamping rod three; 19. Base platform; 20. Longitudinal guide rail one; 21. Longitudinal guide rail two; 22. Slider mover one; 23. Slider mover two; 24. Slider mover three; 25. Slider mover four. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a clamping device for supporting shaft production, including a front mounting plate 1, a rear mounting plate 3, and a base 19. A circular mounting hole 2 is provided near the middle of the front mounting plate 1, and a circular mounting hole 4 is provided near the middle of the rear mounting plate 3. Supporting arc-shaped blocks 5 are provided at both the front and rear ends of the bottom of the first mounting hole 2 and are connected by bolts. Supporting arc-shaped blocks 6 are provided at both the front and rear ends of the bottom of the second mounting hole 4 and are connected by bolts. The supporting arc-shaped blocks 5 and the second mounting hole 4 at the bottom of the first mounting hole 2... The bottom support arc-shaped block 6 is connected by bolts. When the support shaft is placed, it can provide good support for the support shaft from below. The front top center of the front setting plate 1 is connected to the hydraulic actuator 7 by bolts. The left side of the front setting plate 1 near the center is connected to the hydraulic actuator 8 by bolts. The right side of the front setting plate 1 near the center is connected to the hydraulic actuator 9 by bolts. The multiple hydraulic actuators on the front setting plate 1 can drive the corresponding clamping rods to achieve multi-directional clamping of the support shaft, effectively avoiding shaking or displacement during processing and ensuring processing accuracy.

[0025] The rear mounting plate 3 is bolted to the top center of the front side with a hydraulic actuator 4 10. The rear mounting plate 3 is bolted to the left side near the center with a hydraulic actuator 5 11. The rear mounting plate 3 is bolted to the right side near the center with a hydraulic actuator 6 12. The hydraulic actuators on the rear mounting plate 3 are symmetrically arranged with the front mounting plate 1. With the corresponding clamping rods, the support shaft can be clamped from multiple directions to form a closed-loop force system, eliminating the risk of warping and slippage of the shaft during processing. It is especially suitable for processing slender shafts with a large length-to-diameter ratio.

[0026] A front clamping rod 13 is located at the bottom of the hydraulic actuator 7, a front clamping rod 14 is located at the right end of the hydraulic actuator 8, and a front clamping rod 15 is located at the left end of the hydraulic actuator 9. The hydraulic actuators 7, 8, and 9 drive multiple front clamping rods respectively, which can clamp the front end of the support shaft from the top, left, and right sides. The resultant force is evenly distributed around the circumference of the shaft, avoiding local stress concentration and achieving stable clamping.

[0027] A rear clamping rod 16 is located at the bottom of the hydraulic actuator 4 10, a rear clamping rod 2 17 is located at the right end of the hydraulic actuator 5 11, and a rear clamping rod 3 18 is located at the left end of the hydraulic actuator 6 12. The hydraulic actuators 4 10, 5 11, and 6 12 drive multiple rear clamping rods to move symmetrically with the front clamping rods, clamping the rear end of the support shaft in three directions. The multi-directional clamping structure can closely fit the surface of the support shaft, reducing the scrap rate caused by insecure clamping and improving product quality.

[0028] A rectangular longitudinal guide rail 20 is embedded at the top left end of the base platform 19, and a rectangular longitudinal guide rail 21 is embedded at the top right end of the base platform 19. The longitudinal guide rails 20 and 21 at the top of the base platform 19 provide guide tracks for the movement of the front setting plate 1 and the rear setting plate 3. The embedded design ensures structural strength and motion accuracy, and provides a basis for the adjustable distance design of the device.

[0029] The bottom left end of the front setting plate 1 is bolted to a slider mover 22, and the bottom right end of the front setting plate 1 is bolted to a slider mover 23. The bottom of the slider mover 22 is inserted into and connected to the longitudinal guide rail 20, and the bottom of the slider mover 23 is inserted into and connected to the longitudinal guide rail 21. The front setting plate 1 is connected to the longitudinal guide rail through the slider mover, and can move flexibly along the guide rail. The operator can adjust its position according to the length of the support shaft and processing requirements without disassembling and reinstalling the device, saving adjustment time and improving production efficiency.

[0030] The bottom left end of the rear setting plate 3 is bolted to a slider mover 3 24, and the bottom right end of the rear setting plate 3 is bolted to a slider mover 4 25. The bottom of the slider mover 3 24 is inserted into and connected to the longitudinal guide rail 1 20, and the bottom of the slider mover 4 25 is inserted into and connected to the longitudinal guide rail 21. The rear setting plate 3 is also connected to the longitudinal guide rail via slider movers, and can move in coordination with the front setting plate 1 to adjust the spacing to adapt to support shafts of different lengths, further improving the adaptability and production efficiency of the device.

[0031] Working Principle: This clamping device for supporting shaft production consists of a front setting plate 1, a rear setting plate 3, a base 19, a hydraulically driven clamping assembly, and sliding guide rails. The front and rear setting plates 3 are connected to the longitudinal guide rails on the base 19 via slider movers at the bottom, allowing them to move flexibly in the front-back direction to accommodate supporting shafts of different lengths. Multiple hydraulic actuators on the setting plates drive corresponding clamping rods to achieve multi-directional clamping of the supporting shaft. The bottom support arc-shaped block provides initial support for the supporting shaft, ensuring its stable placement. The core objective of the device is to achieve efficient and stable clamping of the supporting shaft through the synergistic effect of the adjustable distance double-plate structure and multi-directional hydraulic clamping. First, the base 19 is fixed to the machine tool or worktable. To ensure horizontal stability, the longitudinal guide rails 20 and 21 on the top of the base platform 19 are parallel, providing guide tracks for the movement of the front setting plate 1 and the rear setting plate 3. The guide rails adopt an embedded design and are integrally machined with the base platform 19 to ensure structural strength and motion accuracy. The bottom of the front setting plate 1 is connected to the longitudinal guide rails through slider mover 22 and slider mover 23, and the rear setting plate 3 is connected through slider mover 24 and slider mover 25. During installation, the initial distance between the front and rear setting plates 3 is slightly greater than the length of the support shaft to be processed, leaving space for placement. The slider mover has a built-in locking device, which uses a slider hydraulic lock to fix the setting plate after positioning to prevent shaking during processing. Multiple hydraulic actuators are connected to an external hydraulic pump station via oil circuits. Using accessories, the support shaft to be processed is passed horizontally through the mounting holes 1-2 of the front mounting plate 1 and 2-4 of the rear mounting plate 3. The mounting holes are circular, with a diameter larger than the maximum outer diameter of common support shafts to avoid contact interference. Both ends of the shaft are positioned directly above the mounting holes, relying on gravity to rest on the surfaces of the bottom supporting arc blocks 1-5 and 2-6. The inner arc surface of the arc blocks fits against the outer circle of the support shaft, providing a stable support base. Simultaneously, different arc blocks with varying curvatures can be replaced via bolt connections to accommodate shafts of different diameters. The front mounting plate 1 clamps the shaft, and the hydraulic actuator 7 drives the front clamping rod 13 downwards until the rod end touches... The head contacts the upper surface of the support shaft. The contact surface is equipped with commercially available anti-slip rubber to maintain friction while avoiding wear on the support shaft surface. The left side is clamped, and the pressure driver 2 drives the front clamping rod 2 14 to move to the right, pressing against the side of the shaft from the left. The right side is clamped, and the hydraulic driver 3 9 drives the front clamping rod 3 15 to move to the left, pressing against the side of the shaft from the right. The rear setting plate 3 clamps. The hydraulic action logic of the rear setting plate 3 is completely symmetrical with that of the front plate. The hydraulic driver 4 10 drives the rear clamping rod 1 16 to clamp the upper surface of the rear end of the shaft downward. The hydraulic driver 5 11 drives the rear clamping rod 2 17 to clamp the left side of the rear end of the shaft to the right. The hydraulic driver 6 12 drives the rear clamping rod 3 18 to clamp the right side of the rear end of the shaft to the left.

[0032] The synergistic effect forms a three-way clamping of the front end of the support shaft, with the resultant force points evenly distributed around the circumference of the shaft, avoiding local stress concentration. It adapts to the adjustment process of support shafts of different specifications. For length adjustment, when machining long shafts, the front and rear setting plates 3 are moved to both sides by the slider mover to increase the distance. When machining short shafts, they are moved inward. The support arc block can be replaced and quickly disassembled by bolts. The inner arc surface matching the shaft diameter can be selected, such as R10, R15, R20, etc. Unlike traditional single-sided or double-sided clamping, this device forms a closed-loop force system through the three-way clamping rods at the front and rear. The reaction forces at each clamping point are balanced with each other, eliminating the risk of warping and slippage of the shaft during machining. It is especially suitable for machining slender shafts with a large length-to-diameter ratio.

[0033] The core working principle of this device lies in the collaborative design of mechanical support, hydraulic multi-directional clamping, and an adjustable distance structure, which achieves precise positioning and stable clamping of the support shaft during the machining process. From the initial support when the shaft is placed, to the uniform application of multi-directional clamping force, and then to the rapid adjustment to adapt to different specifications, each link is developed around this principle. This solves the pain points of traditional clamping devices in the machining of slender shafts, such as easy shaking and poor adaptability, and provides a reliable technical solution for the automated and high-precision production of support shafts.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping device for producing support shafts, characterized in that: The device includes a front mounting plate (1), a rear mounting plate (3), and a base (19). A circular mounting hole 1 (2) is provided near the middle of the front mounting plate (1), and a circular mounting hole 2 (4) is provided near the middle of the rear mounting plate (3). Both ends of the bottom of the mounting hole 1 (2) are provided with supporting arc-shaped blocks 1 (5) and are connected by bolts. Both ends of the bottom of the mounting hole 2 (4) are provided with supporting arc-shaped blocks 2 (6) and are connected by bolts. The top middle of the front side of the front mounting plate (1) is connected by bolts to a hydraulic actuator 1 (7). The left side of the front mounting plate (1) is connected by bolts to a hydraulic actuator 2 (8) near the middle of the front mounting plate (1). The right side of the front mounting plate (1) is connected by bolts to a hydraulic actuator 3 (9) near the middle of the front mounting plate (1).

2. The clamping device for producing a support shaft according to claim 1, characterized in that: The rear mounting plate (3) is bolted to the top center of the front side with a hydraulic actuator four (10), the rear mounting plate (3) is bolted to the left side near the center with a hydraulic actuator five (11), and the rear mounting plate (3) is bolted to the right side near the center with a hydraulic actuator six (12).

3. The clamping device for producing a support shaft according to claim 1, characterized in that: A front clamping rod 1 (13) is provided at the bottom of the hydraulic actuator 1 (7), a front clamping rod 2 (14) is provided at the right end of the hydraulic actuator 2 (8), and a front clamping rod 3 (15) is provided at the left end of the hydraulic actuator 3 (9).

4. The clamping device for producing a support shaft according to claim 2, characterized in that: A rear clamping rod 1 (16) is provided at the bottom of the hydraulic actuator 4 (10), a rear clamping rod 2 (17) is provided at the right end of the hydraulic actuator 5 (11), and a rear clamping rod 3 (18) is provided at the left end of the hydraulic actuator 6 (12).

5. A clamping device for producing support shafts according to claim 1, characterized in that: A rectangular longitudinal guide rail 1 (20) is embedded at the top left end of the base platform (19), and a rectangular longitudinal guide rail 2 (21) is embedded at the top right end of the base platform (19).

6. The clamping device for producing a support shaft according to claim 1, characterized in that: The bottom left end of the front setting plate (1) is connected to a slider mover one (22) by bolts, and the bottom right end of the front setting plate (1) is connected to a slider mover two by bolts. The bottom of the slider mover one (22) is inserted into and connected to the longitudinal guide rail one (20), and the bottom of the slider mover two is inserted into and connected to the longitudinal guide rail two (21).

7. A clamping device for producing a support shaft according to claim 1, characterized in that: The bottom left end of the rear setting plate (3) is connected to a slider mover three (24) by bolts, and the bottom right end of the rear setting plate (3) is connected to a slider mover four (25) by bolts. The bottom of the slider mover three (24) is inserted into and connected to the longitudinal guide rail one (20), and the bottom of the slider mover four (25) is inserted into and connected to the longitudinal guide rail two (21).

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