Shockproof clamping tool for processing elongated shaft parts

Abstract

The application discloses a shockproof clamping tool for machining an elongated shaft part, and relates to the technical field of machining equipment. The tool comprises a rack, a plurality of groups of supporting bottom blocks are transversely arranged on the rack, a quick locking elbow clamp is arranged on one side of each supporting bottom block, limiting blocks matched with the supporting bottom blocks are also arranged on the rack at intervals, an end supporting block is arranged on one side of the supporting bottom block at the edge, and a quick locking elbow clamp is also arranged on one side of the end supporting block. V-shaped first limiting grooves are formed in the supporting bottom blocks and the end supporting block, and a limiting column is arranged in the first limiting groove of the end supporting block. The limiting block is rotationally connected with the fixing block, and an arc-shaped second limiting groove is formed in the lower surface of the limiting block. The quick locking elbow clamp comprises a handle assembly, a connecting rod transmission mechanism, a clamping execution component and a mounting base. Universal wheels are arranged at the bottom of the rack, lifting rings are arranged at the top of the rack, and a supporting group with supporting wheels is arranged on one side of the upper surface of the rack. The tool has the beneficial effects of effectively preventing shock, stable clamping, convenient operation, strong adaptability and the like.

Description

Technical Field

[0001] This application relates to the field of machining equipment technology, and in particular to a shockproof clamping fixture for machining slender shaft parts. Background Technology

[0002] In the field of machining, the machining of slender shaft parts has always been a challenging task. Slender shafts typically refer to shaft parts with a length-to-diameter ratio greater than 20. Due to their inherent structural characteristics, they are prone to vibration and deformation during machining, which affects the machining accuracy and surface quality of the parts. Currently, there are many shortcomings in clamping fixtures for slender shaft parts. Traditional clamping methods often employ fixed ends or single-point support, which cannot effectively distribute the forces experienced by the slender shaft during machining, leading to problems such as bending and vibration. Furthermore, existing fixtures are cumbersome to operate, inconvenient to adjust, and difficult to adapt to the machining requirements of slender shafts of different specifications. Simultaneously, due to the lack of effective vibration damping measures, vibrations generated during machining are transmitted to the shaft, affecting machining accuracy, potentially shortening tool life, and increasing production costs. Furthermore, most existing clamping fixtures are inconvenient to move, and it is time-consuming and labor-intensive to adjust the position or move the fixtures. In addition, the positioning of the ends of slender shafts is not precise enough, which can easily lead to axial displacement during machining, further affecting the machining quality. Utility Model Content

[0003] This utility model addresses the problems of existing clamping fixtures for machining slender shaft parts, such as poor shock absorption, unstable clamping, cumbersome operation, poor adaptability, inconvenient movement, and inaccurate end positioning. It provides a shock-resistant clamping fixture for machining slender shaft parts.

[0004] The objective of this utility model is mainly achieved through the following solution: A shockproof clamping fixture for machining slender shaft parts includes a frame on which multiple sets of support blocks are horizontally mounted. A quick-locking elbow clamp is installed on one side of each support block. Limiting blocks that cooperate with the support blocks are spaced apart on one side of each support block. An end support block is installed on one side of each support block at its edge, and a quick-locking elbow clamp is also installed on one side of each end support block.

[0005] Preferably, the upper surfaces of both the support base block and the end support block are provided with a first limiting groove with a V-shaped cross-section.

[0006] Preferably, the first limiting groove of the end support block is provided with a vertically arranged limiting post, and the end of the shaft part can abut against the side wall of the limiting post.

[0007] Preferably, a fixing block is rotatably connected to one side of the limiting block, the fixing block is fixedly connected to the upper surface of the frame, and the upper surface of the fixing block is provided with a positioning groove for the limiting block to rotate, and an operating rod is installed on the top of the limiting block.

[0008] Preferably, the lower surface of the limiting block is provided with a second limiting groove with a circular arc cross-section.

[0009] Preferably, the quick-locking elbow clamp includes a handle assembly, a linkage transmission mechanism, a clamping actuator, and a mounting base; the mounting base is fixedly mounted on the upper surface of the frame; the linkage transmission mechanism includes a main connecting rod and a secondary connecting rod; the rear end of the main connecting rod is rotatably connected to the rear top of the mounting base via a first rotating shaft; the bottom of the secondary connecting rod is rotatably connected to the middle front side of the mounting base via a second rotating shaft; and the top of the secondary connecting rod is rotatably connected to the middle of the main connecting rod via a third rotating shaft; the handle assembly includes an operating handle; the bottom of the operating handle is rotatably connected to the second rotating shaft, and the middle of the operating handle is rotatably connected to the third rotating shaft.

[0010] Preferably, the clamping actuator includes a pressure head rod and a pressure pad, wherein the pressure head rod is threadedly connected to the front end of the main connecting rod, and the pressure pad is located at the bottom of the pressure head rod.

[0011] Preferably, the pressure pad is made of an elastic material.

[0012] Preferably, casters are installed at the four bottom corners of the frame, and lifting rings are installed at the four top corners of the frame.

[0013] Preferably, the upper surface of the frame is provided with multiple support groups on one side, each support group including a support plate, and the upper surface of the support plate is rotatably connected to support wheels on both the front and rear sides via a transverse fourth pivot.

[0014] In summary, compared with the prior art, the present invention has the following beneficial technical effects: (1) By setting multiple sets of support base blocks and corresponding quick-locking elbows, this utility model can provide multi-point support and clamping for slender shafts, effectively dispersing the force on the shaft, reducing vibration and deformation during processing, and improving processing accuracy and surface quality. (2) The V-shaped first limiting groove on the support bottom block and the end support block of this utility model can adapt to slender shafts of different diameters, which enhances the adaptability of the tooling. At the same time, the design of the V-shaped groove can better position the shaft and prevent the shaft from radially displacing during the processing. (3) The limiting post in the end support block of this utility model can accurately position the end of the slender shaft, avoid axial displacement during the processing, and further ensure the processing accuracy. (4) In this utility model, the limiting block is rotatably connected to the frame through the fixing block. With the operation lever, the limiting block can be easily rotated so that the arc-shaped second limiting groove on its lower surface matches the first limiting groove of the support base block, thereby assisting in limiting the slender shaft and facilitating the quick locking action of the elbow clamp. (5) The quick-locking elbow clamp of this utility model adopts a linkage transmission mechanism. The operation of the handle is convenient and labor-saving, and can quickly clamp and release the slender shaft, which improves the work efficiency. The pressure head rod is threadedly connected to the main connecting rod. The position of the pressure head rod can be adjusted according to the diameter of the slender shaft to ensure the clamping effect. The pressure pad of elastic material can avoid damage to the surface of the slender shaft, and can also play a certain role in buffering and shock absorption. (6) The universal wheels at the bottom of the frame in this utility model facilitate the movement of the tooling and make it easy to adjust the position of the tooling according to the processing requirements; the lifting ring at the top facilitates the hoisting and handling of the tooling, improving the flexibility and practicality of the tooling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a shockproof clamping fixture for machining slender shaft parts according to this utility model; Figure 2 This is a side view of the anti-vibration clamping fixture for machining slender shaft parts according to this utility model; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 yes Figure 1 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the quick-locking elbow clamp in the shockproof clamping fixture for processing slender shaft parts according to this utility model.

[0016] Reference numerals in the attached drawings: 1-Frame, 2-Support base block, 3-Quick-locking elbow clamp, 4-Limit block, 5-End support block, 6-First limit groove, 7-Limit post, 8-Fixing block, 9-Positioning groove, 10-Operating lever, 11-Second limit groove, 12-Mounting base, 13-Main connecting rod, 14-Second connecting rod, 15-First rotating shaft, 16-Second rotating shaft, 17-Third rotating shaft, 18-Operating handle, 19-Pressure head rod, 20-Pressure pad, 21-Universal wheel, 22-Lifting ring, 23-Support plate, 24-Fourth rotating shaft, 25-Support wheel. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0018] like Figure 1-5 As shown, this utility model discloses a technical solution for a shockproof clamping fixture for processing slender shaft parts, including a frame 1. The frame 1 is welded from steel and has high strength and stability. Five sets of support blocks 2 are horizontally installed on the frame 1. The support blocks 2 are fixed to the frame 1 by bolts. The distance between adjacent support blocks 2 is 300mm, which can be adjusted according to the length of the slender shaft. A quick-locking elbow clamp 3 is installed on one side of each support block 2 on the frame 1, and a limiting block 4 that cooperates with the support block 2 is provided at intervals on one side of each support block 2 on the frame 1. An end support block 5 is installed on one side of the support block 2 at the edge, and a quick-locking elbow clamp 3 is also installed on one side of the end support block 5.

[0019] Specifically, the quick-locking elbow clamp 3 includes a handle assembly, a linkage transmission mechanism, a clamping actuator, and a mounting base 12. The mounting base 12 is fixedly mounted to the upper surface of the frame 1 by bolts. The linkage transmission mechanism includes a main connecting rod 13 and a secondary connecting rod 14. The rear end of the main connecting rod 13 is rotatably connected to the rear top of the mounting base 12 via a first rotating shaft 15. The bottom of the secondary connecting rod 14 is rotatably connected to the middle front of the mounting base 12 via a second rotating shaft 16, and the top of the secondary connecting rod 14 is rotatably connected to the middle of the main connecting rod 13 via a third rotating shaft 17. The handle assembly includes an operating handle 18. The bottom of the operating handle 18 is rotatably connected to the second rotating shaft 16, and the middle of the operating handle 18 is rotatably connected to the third rotating shaft 17. In the linkage transmission mechanism of the quick-locking elbow clamp 3, both the main connecting rod 13 and the secondary connecting rod 14 are made of high-strength alloy material, ensuring the stability and reliability of the transmission. The operating handle 18 is 200mm long, facilitating labor-saving operation by the operator.

[0020] Specifically, the clamping actuator includes a pressure rod 19 and a pressure pad 20. The pressure rod 19 is threadedly connected to the front end of the main connecting rod 13. The pressure pad 20 is located at the bottom of the pressure rod 19. The pressure rod 19 is made of threaded steel and is 100mm long. Its extension length can be adjusted by rotating the pressure rod 19 to accommodate slender shafts of different diameters. The pressure pad 20 is made of rubber and is 10mm thick. It has good elasticity and wear resistance and can effectively protect the surface of the slender shaft.

[0021] Specifically, the upper surfaces of the support base block 2 and the end support block 5 are provided with a first limiting groove 6 with a V-shaped cross-section, and the first limiting groove 6 of the end support block 5 is provided with a vertically arranged limiting post 7, and the end of the shaft part can abut against the side wall of the limiting post 7.

[0022] Specifically, a fixed block 8 is rotatably connected to one side of the limiting block 4 via a pin. The fixed block 8 is fixedly connected to the upper surface of the frame 1 by bolts. The upper surface of the fixed block 8 is provided with a positioning groove 9 for the limiting block 4 to rotate. An operating rod 10 is fixedly installed on the top of the limiting block 4 by bolts. The lower surface of the limiting block 4 is provided with a second limiting groove 11 with a circular arc cross-section.

[0023] Specifically, casters 21 are installed at the four bottom corners of the frame 1. The casters 21 are equipped with brakes to facilitate the movement and fixation of the tooling. Lifting rings 22 are installed at the four top corners of the frame 1. The lifting rings 22 are made of high-strength alloy steel and can withstand the total weight of the tooling and slender shafts.

[0024] Specifically, two support groups are provided on one side of the upper surface of the frame 1, with a distance of 500mm between the support groups. Each support group includes a support plate 23, which is bolted to the frame 1. Support wheels 25 are rotatably connected to both the front and rear sides of the upper surface of the support plate 23 via a transverse fourth rotating shaft 24. The support wheels 25 are made of nylon material, with a diameter of 80mm and a width of 30mm, providing good auxiliary support for slender shafts.

[0025] The anti-vibration clamping fixture for machining slender shaft parts provided by this utility model first adjusts the position and number of support base blocks 2 according to the length and diameter of the slender shaft, and adjusts the height of the pressure pad 20 by rotating the pressure head rod 19; then the slender shaft is placed in the first limiting groove 6 of the support base block 2, so that the end of the slender shaft abuts against the side wall of the limiting post 7 to achieve axial positioning. Then, the operator rotates the limiting block 4 using the operating lever 10, causing the second limiting groove 11 of the limiting block 4 to contact the slender shaft, thus providing auxiliary limiting for the slender shaft and preventing the part from moving when passing through the quick-locking elbow clamp 3. At this time, the operator rotates the operating handle 18, which drives the pressure head rod 19 downward through the linkage transmission mechanism, causing the pressure pad 20 to press the slender shaft. Finally, the slender shaft can be processed. The pressing action of the limiting block 4 and the quick-locking elbow clamp 3 gradually moves from the side closer to the end support block 5 to the side farther away from the end support block 5. After processing, the operating handle 18 is rotated in the opposite direction to release the pressure head rod 19, and the processed slender shaft can be removed.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shockproof clamping fixture for machining slender shaft parts, comprising a frame (1), characterized in that: Multiple sets of support blocks (2) are horizontally installed on the frame (1). A quick-locking elbow clamp (3) is installed on one side of each support block (2) on the frame (1). Limiting blocks (4) that cooperate with the support blocks (2) are spaced apart on one side of each support block (2) on the frame (1). An end support block (5) is installed on one side of the support block (2) at the edge. A quick-locking elbow clamp (3) is also installed on one side of the end support block (5). The upper surfaces of the support base block (2) and the end support block (5) are provided with a first limiting groove (6) with a V-shaped cross-section. The first limiting groove (6) of the end support block (5) is provided with a vertically arranged limiting post (7), and the end of the shaft part can abut against the side wall of the limiting post (7); A fixed block (8) is rotatably connected to one side of the limiting block (4). The fixed block (8) is fixedly connected to the upper surface of the frame (1). The upper surface of the fixed block (8) is provided with a positioning groove (9) for the limiting block (4) to rotate. An operating rod (10) is installed on the top of the limiting block (4). The lower surface of the limiting block (4) is provided with a second limiting groove (11) with a circular arc cross-section. The upper surface of the frame (1) is provided with multiple support groups on one side. The support group includes a support plate (23). The upper surface of the support plate (23) is rotatably connected to the front and rear sides by a fourth horizontal pivot (24) with support wheels (25).

2. The anti-vibration clamping fixture for machining slender shaft parts according to claim 1, characterized in that: The quick-locking elbow clamp (3) includes a handle assembly, a linkage transmission mechanism, a clamping execution component, and a mounting base (12). The mounting base (12) is fixedly installed on the upper surface of the frame (1). The linkage transmission mechanism includes a main connecting rod (13) and a secondary connecting rod (14). The rear end of the main connecting rod (13) is rotatably connected to the rear top of the mounting base (12) via a first rotating shaft (15). The bottom of the secondary connecting rod (14) is rotatably connected to the middle front side of the mounting base (12) via a second rotating shaft (16). The top of the secondary connecting rod (14) is rotatably connected to the middle of the main connecting rod (13) via a third rotating shaft (17). The handle assembly includes an operating handle (18). The bottom of the operating handle (18) is rotatably connected to the second rotating shaft (16), and the middle of the operating handle (18) is rotatably connected to the third rotating shaft (17).

3. The anti-vibration clamping fixture for machining slender shaft parts according to claim 2, characterized in that: The clamping actuator includes a pressure head rod (19) and a pressure pad (20). The pressure head rod (19) is threadedly connected to the front end of the main connecting rod (13), and the pressure pad (20) is located at the bottom of the pressure head rod (19).

4. The anti-vibration clamping fixture for machining slender shaft parts according to claim 3, characterized in that: The pressure pad (20) is made of elastic material.

5. The anti-vibration clamping fixture for machining slender shaft parts according to claim 1, characterized in that: The frame (1) is equipped with casters (21) at the bottom four corners and lifting rings (22) at the top four corners.

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