Clamping tool for machining air floating main shaft

Abstract

The utility model provides a clamping tool for air bearing spindle machining, which comprises a mounting plate and a fixing plate, the surface of the mounting plate is fixedly connected with a positioning cylinder, a positioning groove is arranged in the positioning cylinder, a buffer groove is arranged on the side surface of the positioning groove, a hydraulic cylinder is fixedly connected in the buffer groove, and a telescopic rod of the hydraulic cylinder is fixedly connected with a moving plate. The side edge of the movable plate is fixedly connected with one end of a fixing rope, the other end of the fixing rope penetrates through the through hole to be fixedly connected with a fixing plate, the surface of the fixing plate is symmetrically connected with guide rods, the guide rods are slidably connected into guide grooves formed in the positioning cylinders, and the ends, close to the positioning grooves, of the guide rods are fixedly connected with clamping plates. Through the cooperation of the hydraulic cylinder, the moving plate, the fixing rope, the limiting ring, the fixing plate, the guide rod and the clamping plate, the clamping tool can correspondingly clamp and fix air floating spindles of different sizes, meanwhile, the air floating spindles can correspondingly rotate in the clamping state, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing fixtures, in particular to a clamping tool for processing an air-floating spindle. Background Art

[0002] Air-floating spindle, also known as air spindle, refers to a sliding bearing that uses gas (usually air, but it may be other gases) as a lubricant. Air has lower viscosity than oil, is resistant to high temperatures, and is pollution-free, so it can be used in high-speed machines, instruments, and radioactive devices, but its load capacity is lower than that of oil. Air-floating spindle is a commonly used mechanical equipment in high-precision processing. Its abnormal vibration may cause poor processing or even equipment damage. At present, in the existing spindle processing clamping tooling, if the spindle needs to be finely polished or assembled, the worker needs to position the spindle one by one in advance, and the worker Workers usually clamp and position the spindle on a workbench with a pre-prepared base, clamp blocks and bolts. First, the bolt is passed through the round hole of the clamp block, and then three or four clamp blocks are arranged at equal intervals around the folded edge of the outer circle of the spindle. Finally, the bolt is screwed into the threaded hole of the base to clamp and position the spindle. However, the existing clamping tooling needs to tighten the bolts on each clamp block one by one, which is very inconvenient and time-consuming in actual use, reducing the work efficiency of the staff. At the same time, the spindle cannot rotate after being fixed, which will also affect the subsequent processing efficiency and work progress. Utility Model Content

[0003] In order to overcome the defects of the prior art, a clamping tool for air-floating spindle processing is provided to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, a clamping tool for air-floating spindle processing is provided, including: a mounting plate and a fixed plate, the surface of the mounting plate is fixedly connected to the positioning cylinder, a positioning groove is provided in the positioning cylinder, a buffer groove is provided on the side of the positioning groove, and the hydraulic cylinder is fixedly connected in the buffer groove, and the telescopic rod of the hydraulic cylinder is fixedly connected to the movable plate, the side of the movable plate is fixedly connected to one end of the fixing rope, and the other end of the fixing rope is fixedly connected to the fixed plate through a through hole, and at the same time, the side of the positioning groove is fixedly connected to the partition plate, and the surface of the partition plate is movably connected to the rotating plate through a bearing, the surface of the fixed plate is symmetrically connected to the guide rod, the guide rod is slidably connected in the guide groove provided in the positioning cylinder, and the end of the guide rod close to the positioning groove is fixedly connected to the clamping plate, and the clamping plate is movably connected to the roller shaft through a bearing, and at the same time, a spring is sleeved on the surface of the guide rod.

[0005] Preferably, the partition plate has a circular structure, and a plurality of sets of movable grooves are provided at equal intervals along the circumferential direction on the edge of the partition plate surface, and the balls are movably connected in the movable grooves, and a main slide groove is provided on the surface of the rotating plate corresponding to the position of the balls, and the main slide groove has a circular ring structure. At the same time, the cross-section of the main slide groove has an arc-shaped structure, and the sizes of the rotating plate and the positioning groove are matched.

[0006] Preferably, the positioning groove formed in the positioning cylinder is of a cylindrical structure, while the axial section of the buffer groove is of a convex-shaped structure, and the diameter of the opening of the buffer groove is smaller than the inner diameter of the positioning groove. At the same time, a plurality of through holes are arranged at equal intervals along the circumferential direction around the arc surface of the opening of the buffer groove.

[0007] Preferably, the moving plate is of a circular structure. Fixing holes are correspondingly formed at positions on the side of the moving plate opposite to the through holes. One end of the fixing rope is fixedly connected in the fixing hole. The through hole and the fixing rope are adapted in size. At the same time, the openings at both ends of the through hole are of a frustum-shaped structure. A limiting ring is correspondingly arranged at a position on the outer side surface of the positioning cylinder opposite to the fixing plate. The limiting ring is of a 冂-shaped structure.

[0008] Preferably, the fixing plate is of a rectangular structure. The two guide rods fixedly connected to the surface of the fixing plate are both of a cylindrical structure. The fixing plate and the guide rods together form a 冂-shaped structure. At the same time, two fixing ropes are symmetrically connected to both sides of the middle part of the lower surface of the fixing plate.

[0009] Preferably, a plurality of guide grooves are arranged at equal intervals along the circumferential direction on the outer side surface of the positioning cylinder. The axial section of the guide groove is of a convex-shaped structure. The size of the opening of the guide groove near one end of the positioning groove is smaller than that of the other end. At the same time, the opening with a smaller size of the guide groove is adapted to the size of the guide rod.

[0010] Preferably, the clamping plate as a whole is of a rectangular structure. The movable groove formed on the lower surface of the clamping plate is of a rectangular structure. The clamping plate and the movable groove together form a [shaped structure. At the same time, two roller shafts are symmetrically connected to both ends of the movable groove through bearings. Anti-slip layers are sleeved on the surfaces of the two roller shafts.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation of the hydraulic cylinder, the moving plate, the fixing rope, the fixing plate, the guide rod and the clamping plate, the positioning cylinder can clamp and fix air-bearing spindles of different sizes accordingly, and can effectively improve the efficiency of clamping and fixing the air-bearing spindle, shorten the time required for the clamping operation, improve the working efficiency of workers. At the same time, through the cooperation of the clamping plate, the roller shaft, the partition plate and the rotating plate, the air-bearing spindle can rotate accordingly in the clamped state, so as to be able to assist in improving the subsequent processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 It is a side view schematic diagram of an embodiment of the present utility model.

[0014] Figure 3 It is a partial cross-sectional structure schematic diagram of the fixing plate and the clamping plate of an embodiment of the present utility model.

[0015] Figure 4 For the utility model embodiment Figure 1 An enlarged schematic diagram of point A.

[0016] In the figure: 1. Mounting plate; 2. Positioning cylinder; 3. Hydraulic cylinder; 4. Buffer groove; 5. Moving plate; 6. Fixed plate; 7. Guide rod; 8. Positioning groove; 9. Rotating plate; 10. Partition plate; 11. Ball; 12. Roller; 13. Clamping plate; 14. Guide groove; 15. Limiting ring; 16. Fixing rope. DETAILED DESCRIPTION

[0017] Reference Figures 1 to 4 As shown, the utility model provides a clamping tool for air-floating spindle processing, including: a mounting plate 1 and a fixed plate 6, the surface of the mounting plate 1 is fixedly connected to a positioning tube 2, a positioning groove 8 is provided in the positioning tube 2, a buffer groove 4 is provided on the side of the positioning groove 8, and a hydraulic cylinder 3 is fixedly connected in the buffer groove 4, and a telescopic rod of the hydraulic cylinder 3 is fixedly connected to a moving plate 5, a side of the moving plate 5 is fixedly connected to one end of a fixing rope 16, and the other end of the fixing rope 16 passes through a through hole and is fixedly connected to the fixed plate 6, and at the same time, a side of the positioning groove 8 is fixedly connected to a partition plate 10, and a surface of the partition plate 10 is movably connected to a rotating plate 9 through a bearing, and a surface of the fixed plate 6 is symmetrically connected to a guide rod 7, and the guide rod 7 is slidably connected in a guide groove 14 provided in the positioning tube 2, and one end of the guide rod 7 close to the positioning groove 8 is fixedly connected to a clamping plate 13, and the clamping plate 13 is movably connected to a roller shaft 12 through a bearing, and at the same time, a spring is sleeved on the surface of the guide rod 7.

[0018] In this embodiment, the clamping tool is installed in a suitable position through the mounting plate 1, and the air-floating spindle is inserted into the positioning groove 8. When the switch of the hydraulic cylinder 3 is started, the hydraulic cylinder 3 drives the movable plate 5 to move through the telescopic rod, and the movable plate 5 can drive the fixed plate 6 to move synchronously through the fixed rope 16, and the limit ring 15 arranged on the outer side of the positioning cylinder 2 makes the pulling direction of the fixed rope 16 perpendicular to the surface of the fixed plate 6, ensuring that the fixed plate 6 can push the clamping plate 13 to move synchronously through the guide rod 7, and during the movement of the fixed plate 6, the spring sleeved on the surface of the guide rod 7 will also be gradually compressed, and the clamping plate 13 will abut the surface of the air-floating spindle through the roller shaft 12, so that the air-floating spindle can be clamped and fixed in the positioning groove 8, and the air-floating spindle can also be rotated accordingly in the positioning groove 8 through the roller shaft 12, thereby improving the efficiency of subsequent air-floating spindle processing.

[0019] As a preferred embodiment, the partition plate 10 has a circular structure. A plurality of movable grooves are equidistantly arranged in a circumferential direction around the edge of the surface of the partition plate 10. Ball bearings 11 are movably connected in the movable grooves. A main chute is correspondingly formed on the surface of the rotating plate 9 at a position opposite to the ball bearings 11. The main chute has a circular ring structure, and the cross-section of the main chute is an arc-shaped structure. The sizes of the rotating plate 9 and the positioning groove 8 are adapted to each other.

[0020] In this embodiment, as Figure 1 , Figure 2 and Figure 4 , the arrangement of the partition plate 10 can separate the buffer groove 4 and the positioning groove 8, thereby avoiding interference of sundries with the movement of the moving plate 5. At the same time, the arrangement of the ball bearings 11 and the main chute can assist in reducing the frictional resistance when the rotating plate 9 rotates, enabling the rotating plate 9 to assist the air-floating spindle to rotate.

[0021] As a preferred embodiment, the positioning groove 8 formed in the positioning cylinder 2 has a cylindrical structure, the axial cross-section of the buffer groove 4 is a convex-shaped structure, the diameter of the opening of the buffer groove 4 is smaller than the inner diameter of the positioning groove 8, and a plurality of through holes are equidistantly arranged in a circumferential direction around the arc surface of the opening of the buffer groove 4.

[0022] In this embodiment, as Figure 1 and Figure 2 , the formation of the buffer groove 4 enables the moving plate 5 to pull the fixing rope 16 in a relatively enclosed environment, reducing the probability of failure. Moreover, the size of the opening of the buffer groove 4 is relatively large, which is beneficial to the synchronous movement of the moving plate 5 and the fixing rope 16.

[0023] As a preferred embodiment, the moving plate 5 has a circular structure. Fixing holes are correspondingly formed on the side of the moving plate 5 at positions opposite to the through holes. One end of the fixing rope 16 is fixedly connected in the fixing holes. The sizes of the through holes and the fixing rope 16 are adapted to each other. Both ends of the opening of the through hole are in a frustum shape. A limiting ring 15 is correspondingly arranged on the outer side surface of the positioning cylinder 2 at a position opposite to the fixing plate 6. The limiting ring 15 has a 冂-shaped structure.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 4 , the structures of the openings at both ends of the through hole can effectively reduce the frictional loss when the fixing rope 16 moves, thereby assisting in extending the service life of the fixing rope 16. At the same time, the fixing rope 16 is made of stainless steel material, which can enhance the wear resistance effect of the fixing rope 16. And the arrangement of the limiting ring 15 can effectively change the moving direction of the fixing rope 16, ensuring that the fixing rope 16 can drive the fixing plate 6 to move stably.

[0025] As a preferred embodiment, the fixed plate 6 has a rectangular structure, and the two groups of guide rods 7 fixedly connected to the surface of the fixed plate 6 are both cylindrical structures. The fixed plate 6 and the guide rods 7 are combined together to form a U-shaped structure. At the same time, two groups of fixing ropes 16 are symmetrically connected on both sides of the middle of the lower surface of the fixed plate 6.

[0026] In this embodiment, if Figure 1 , Figure 2 and Figure 3 The fixing ropes 16 symmetrically arranged on the lower surface of the fixing plate 6 can enhance the uniformity of the force applied to the fixing plate 6, thereby reducing the probability of deviation of the force direction of the fixing plate 6, and further helping to reduce the difficulty of the fixing plate 6 pushing the guide rod 7.

[0027] As a preferred embodiment, a plurality of guide grooves 14 are provided on the outer side surface of the positioning tube 2 at equal intervals along the circumferential direction, the axial cross-section of the guide groove 14 is a convex structure, and the size of the opening at one end of the guide groove 14 close to the positioning groove 8 is smaller than the size of the opening at the other end, and at the same time, the smaller opening of the guide groove 14 is adapted to the size of the guide rod 7.

[0028] In this embodiment, if Figure 1 and Figure 2 The smaller opening of the guide groove 14 is adapted to the size of the guide rod 7, which can help enhance the stability of the guide rod 7 when it moves, while the larger opening end of the guide groove 14 can assist in accommodating the spring accordingly. At the same time, when the fixing rope 16 no longer applies force to the fixing plate 6, the squeezed spring can push the fixing plate 6 to reset, thereby releasing the clamping plate 13 from the air-floating spindle.

[0029] As a preferred embodiment, the clamping plate 13 is a rectangular structure as a whole, the movable groove opened on the lower surface of the clamping plate 13 is a rectangular structure, and the clamping plate 13 and the movable groove are combined together to form a [-shaped structure, and at the same time, the two ends of the movable groove are symmetrically connected to the two groups of rollers 12 through bearings, and the surfaces of the two groups of rollers 12 are both covered with anti-slip layers.

[0030] In this embodiment, if Figure 1 , Figure 2 and Figure 3 The anti-slip layer is made of soft rubber material, which can help enhance the clamping and fixing effect of the roller 12 on the surface of the air-floating spindle, and can also help reduce the probability of damage to the surface of the air-floating spindle due to clamping and fixing.

[0031] The clamping tool for processing the air-floating spindle of the utility model cooperates with the hydraulic cylinder 3, the movable plate 5, the fixed rope 16, the limit ring 15, the fixed plate 6, the guide rod 7 and the clamping plate 13, so that the clamping tool can clamp and fix the air-floating spindles of different sizes accordingly, and the air-floating spindle can also rotate accordingly in the clamping state, thereby improving the processing efficiency. Moreover, through the cooperation of the hydraulic cylinder 3, the movable plate 5 and the fixed rope 16, the clamping and fixing efficiency of the air-floating spindle by the clamping tool can be effectively improved.

Claims

1. A clamping tool for air-floating spindle processing, comprising: An installation plate (1) and a fixing plate (6), characterized in that: a positioning cylinder (2) is fixedly connected to the surface of the installation plate (1), a positioning groove (8) is formed in the positioning cylinder (2), a buffer groove (4) is formed in the side surface of the positioning groove (8), a hydraulic cylinder (3) is fixedly connected in the buffer groove (4), the telescopic rod of the hydraulic cylinder (3) is fixedly connected to a moving plate (5), one end of a fixing rope (16) is fixedly connected to the side of the moving plate (5), the other end of the fixing rope (16) passes through a through hole and is fixedly connected to the fixing plate (6), at the same time, a partition plate (10) is fixedly connected to the side surface of the positioning groove (8), and a rotating plate (9) is movably connected to the surface of the partition plate (10) through a bearing. Symmetrically connected guide rods (7) are arranged on the surface of the fixing plate (6), the guide rods (7) are slidably connected in a guide groove (14) formed in the positioning cylinder (2), a clamping plate (13) is fixedly connected to one end of the guide rod (7) close to the positioning groove (8), a roller shaft (12) is movably connected to the clamping plate (13) through a bearing, and a spring is sleeved on the surface of the guide rod (7).

2. The clamping tool for air-floating spindle processing according to claim 1, characterized in that: The partition plate (10) has a circular structure, a plurality of groups of movable grooves are arranged at equal intervals along the circumferential direction at the edge of the surface of the partition plate (10), balls (11) are movably connected in the movable grooves, main chutes are correspondingly formed at positions of the surface of the rotating plate (9) opposite to the balls (11), the main chutes have a circular ring structure, the cross section of the main chutes is in an arc surface structure, and the sizes of the rotating plate (9) and the positioning groove (8) are matched.

3. The clamping tool for air-floating spindle processing according to claim 1, characterized in that: The positioning groove (8) formed in the positioning cylinder (2) has a cylindrical structure, the axial cross section of the buffer groove (4) has a convex structure, the diameter of the opening of the buffer groove (4) is smaller than the inner diameter of the positioning groove (8), and a plurality of groups of through holes are arranged at equal intervals along the circumferential direction of the arc surface at the opening of the buffer groove (4).

4. The clamping tool for processing an air-floating spindle according to claim 1, characterized in that: The moving plate (5) has a circular structure, fixing holes are correspondingly formed at positions of the side of the moving plate (5) opposite to the through holes, one end of the fixing rope (16) is fixedly connected in the fixing holes, the sizes of the through holes and the fixing rope (16) are matched, the openings at both ends of the through holes are in a frustum shape, and a limiting ring (15) is correspondingly arranged at a position of the outer side surface of the positioning cylinder (2) opposite to the fixing plate (6), and the limiting ring (15) has a U-shaped structure.

5. The clamping tool for air-floating spindle processing according to claim 1, characterized in that: The fixing plate (6) has a rectangular structure, the two groups of guide rods (7) fixedly connected to the surface of the fixing plate (6) are both in a cylindrical structure, the fixing plate (6) and the guide rods (7) together form a U-shaped structure, and two groups of fixing ropes (16) are symmetrically connected to both sides of the middle part of the lower surface of the fixing plate (6).

6. The clamping tool for air-floating spindle processing according to claim 1, characterized in that: A plurality of groups of guide grooves (14) are arranged at equal intervals along the circumferential direction on the outer side surface of the positioning cylinder (2), the axial cross section of the guide grooves (14) has a convex structure, the size of the opening at one end of the guide groove (14) close to the positioning groove (8) is smaller than the size of the opening at the other end, and the size of the smaller opening of the guide groove (14) is matched with the size of the guide rod (7).

7. The clamping tool for processing an air-floating spindle according to claim 1, characterized in that: The clamping plate (13) is in the form of a rectangular structure as a whole, and the movable groove provided on the lower surface of the clamping plate (13) is in the form of a rectangular structure, and the clamping plate (13) and the movable groove are combined together to form a [-shaped structure, and at the same time, two groups of roller shafts (12) are symmetrically connected at both ends of the movable groove through bearings, and the surfaces of the two groups of roller shafts (12) are both sleeved with anti-slip layers.

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