Dustproof pneumatic chuck
By designing a dustproof pneumatic chuck and utilizing a distribution plate and air guide pipe system, the wear problem caused by dust and debris entering the pneumatic chuck was solved, achieving dustproof effect of the chuck and stable clamping and release of the workpiece, thus extending its service life.
Patent Information
- Application Number
- CN202422682245.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-04
AI Technical Summary
During the machining process, dust and debris can enter the pneumatic chuck, causing accelerated friction and wear, shortening its service life, and potentially leading to malfunction.
A dustproof pneumatic chuck was designed. It uses compressed air to blow away debris and dust through a distribution plate and air guide pipe system to prevent them from entering the chuck. The workpiece is clamped and released by the movement of the partition and column.
It effectively prevents dust and debris from entering the chuck, protects the chuck from wear, extends its service life, and ensures stable clamping and release of the workpiece.
Smart Images
Figure CN223684473U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pneumatic chuck especially relates to a dustproof pneumatic chuck. BACKGROUND
[0002] Pneumatic chuck is a kind of device for fixing workpiece, commonly found in machinery processing industry, it is usually installed on lathe, drilling machine or milling machine, to clamp the part needing to be processed, to ensure that the part does not move in the processing process, pneumatic chuck uses compressed air as power source to drive internal mechanism, and then clamps or releases workpiece.
[0003] Pneumatic chuck is generally applied to machine tool, when processing workpiece, dust or debris and other impurities generated will enter pneumatic chuck, impurity particles can generate additional friction between internal moving parts of chuck, to accelerate wear and tear, shorten the service life of chuck, if impurities accumulate in critical position, it can cause dysfunction of chuck, such as clamping force drops, or unable to clamp and release workpiece correctly, dust or debris can cause moving parts to be jammed, so that the chuck cannot operate normally.
[0004] Therefore, it is necessary to design a dustproof pneumatic chuck to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] In order to overcome the shortcoming that when processing workpiece, dust or debris and other impurities generated will enter pneumatic chuck, impurity particles can generate additional friction between internal moving parts of chuck, to accelerate wear and tear, shorten the service life of chuck, the technical problem to be solved is to provide a dustproof pneumatic chuck.
[0006] Technical scheme is: a dustproof pneumatic chuck, including shell, air pipe, baffle, stand, connecting rod, extrusion block, clamp, shunt disc, gas pipe, pressure relief valve, connecting pipe and sleeve, the air pipe is connected and communicated in the shell inner wall, the sleeve is rotatably connected on the shell outer wall, the cavity is formed between the sleeve inner wall and the shell outer wall, the stand is slidably connected in the shell, the baffle is fixedly connected on one side of the stand, the baffle is slidably connected with the shell, the baffle is tightly contacted and matched with the bottom of the air pipe on one side, at least one connecting rod is rotatably connected in annular array on the other side of the stand, the extrusion block is rotatably connected on one end of each connecting rod, the clamp is threadedly connected on the top of the shell, the clamp extends out of the top of the shell on the upper part, the extrusion block is tightly contacted and matched with the clamp on the centripetal end of each extrusion block, four slide grooves are formed in the inner side of the shell, each slide groove is slidably connected with the corresponding extrusion block, the shunt disc is fixedly connected on the top of the shell, the shunt disc inner wall is tightly contacted with the clamp outer wall, at least one gas pipe is connected and communicated on one side of the shunt disc, each gas pipe is located in the shell, each gas pipe is connected and communicated with the pressure relief valve on one end, each pressure relief valve is connected and communicated with the connecting pipe on one side.
[0007] Further, the air guide pipe and the connecting sleeve are further included, the outer wall of the sleeve is symmetrically connected and communicated with the air guide pipe, the two air guide pipes are communicated with the air pipe through the cavity, and the connecting sleeve is connected and communicated with one end of each air guide pipe, and the threaded groove is formed in the inner wall of each connecting sleeve.
[0008] Further, the outer wall of the shell is symmetrically connected and communicated with the air guide pipe, the two air guide pipes are communicated with the air pipe through the cavity, and the connecting sleeve is connected and communicated with one end of each air guide pipe, and the threaded groove is formed in the inner wall of each connecting sleeve.
[0009] Further, the outer wall of the shell is symmetrically connected and communicated with the air guide pipe, the two air guide pipes are communicated with the air pipe through the cavity, and the connecting sleeve is connected and communicated with one end of each air guide pipe, and the threaded groove is formed in the inner wall of each connecting sleeve.
[0010] Further, the outer wall of the shell is symmetrically connected and communicated with the air guide pipe, the two air guide pipes are communicated with the air pipe through the cavity, and the connecting sleeve is connected and communicated with one end of each air guide pipe, and the threaded groove is formed in the inner wall of each connecting sleeve.
[0011] Further, the outer wall of the shell is symmetrically connected and communicated with the air guide pipe, the two air guide pipes are communicated with the air pipe through the cavity, and the connecting sleeve is connected and communicated with one end of each air guide pipe, and the threaded groove is formed in the inner wall of each connecting sleeve.
[0012] Beneficial effects: 1, the utility model discloses a pressure relief valve is opened, and the compressed air in the shell is circulated, and then the compressed air is transported to the gas conveying pipe through the connecting pipe, and then enters the shunt disc, and is evenly transported to the outside through the air blowing hole of the shunt disc, and the gas blows away the debris and dust on the top of the shell, so that the dust or debris does not enter the shell, the gap of the clamp, etc., and the effect of protecting the dustproof pneumatic chuck is achieved.
[0013] 2, the utility model discloses that the compressed air in the cavity is transported into the shell through the air pipe, so that the compressed air impacts the partition plate and the column moves, the column drives the connecting rod to rotate, so that the connecting rod drives the extrusion block on the same side to be close to the clamp side, and the clamping jaw of the clamp is folded, so that the effect of clamping the workpiece is achieved. ACCURATE DRAWINGS
[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.
[0015] Figure 2 It is the three-dimensional structure schematic diagram of the utility model shell, clamp and air pipe and the like parts.
[0016] Figure 3 It is the three-dimensional structure schematic diagram of the utility model shunt disc, gas conveying pipe and connecting pipe and the like parts.
[0017] Figure 4 It is the three-dimensional structure schematic diagram of the utility model gas conveying pipe, pressure relief valve and connecting pipe and the like parts.
[0018] Figure 5 It is the three-dimensional structure schematic diagram of the utility model sleeve, air guide pipe and connecting sleeve and the like parts.
[0019] Component names and serial numbers in the diagram: 1_Outer shell, 2_Ventilation pipe, 4_Baffle plate, 5_Column, 6_Connecting rod, 7_Extrusion block, 8_Slide groove, 9_Clamp, 10_Diverter plate, 11_Gas supply pipe, 12_Pressure relief valve, 13_Connecting pipe, 14_Sleeve, 15_Gas guide pipe, 16_Connecting sleeve, 17_Threaded groove, 18_Mounting hole. Detailed Implementation
[0020] The present invention will now be described in detail with reference to the accompanying drawings.
[0021] Example: A dustproof pneumatic chuck, such as Figures 1-4 As shown, the device includes an outer shell 1, a vent pipe 2, a partition 4, a column 5, a connecting rod 6, a pressing block 7, a clamp 9, a distribution plate 10, a gas supply pipe 11, a pressure relief valve 12, a connecting pipe 13, and a sleeve 14. The vent pipe 2 is connected to and communicates with the inner wall of the front side of the outer shell 1. The sleeve 14 is rotatably connected to the outer wall of the outer shell 1. A cavity is formed between the inner wall of the sleeve 14 and the outer wall of the outer shell 1. The column 5 is slidably connected inside the outer shell 1. The partition 4 is welded to the bottom of the column 5 and is slidably connected to the outer shell 1. The outer wall of the partition 4 is close to the inner wall of the outer shell 1. The top of the partition 4 is in close contact with the bottom of the vent pipe 2. Four connecting rods 6 are rotatably connected in a ring array at the top of the column 5. Each of the four connecting rods 6 is rotatably connected to the top of a pressing block 7. A clamp 9 is threadedly connected to the top, with the upper part of the clamp 9 extending out of the top of the outer shell 1. The four extrusion blocks 7 are in close contact with the clamp 9 at their concentric ends. Four sliding grooves 8 are provided on the inner side of the top of the outer shell 1, and the four sliding grooves 8 are slidably connected to the corresponding extrusion blocks 7. A diverter plate 10 is connected to the top of the outer shell 1 by screws. The diverter plate 10 and the clamp 9 are concentric circles, and the inner wall of the diverter plate 10 is in close contact with the outer wall of the clamp 9. Twenty air blowing holes are arranged in a ring array on the outer wall of the diverter plate 10. Four air supply pipes 11 are connected and communicated to the bottom of the diverter plate 10. The four air supply pipes 11 are all located inside the outer shell 1. A pressure relief valve 12 is installed at the bottom of each of the four air supply pipes 11 by screws. A connecting pipe 13 is connected and communicated to the bottom of each of the four pressure relief valves 12.
[0022] like Figure 1 and Figure 5 As shown, it also includes an air guide tube 15 and a connecting sleeve 16. The outer wall of the sleeve 14 is symmetrically connected and connected to the air guide tube 15. The air guide tube 15 is made of polyurethane. Both air guide tubes 15 are connected to the air pipe 2 through a cavity. The front ends of both air guide tubes 15 are connected and connected to the connecting sleeve 16. The inner wall of both connecting sleeves 16 is provided with threaded grooves 17. The lower part of the outer shell 1 has eight mounting holes 18 arranged in a ring array.
[0023] When the dustproof pneumatic chuck needs to be used, the worker first fixes the dustproof pneumatic chuck in the designated work area through the mounting hole 18, and connects the connecting sleeve 16 with the compressed air pipeline to ensure that the dustproof pneumatic chuck has sufficient compressed air to be stably transmitted into the shell 1 during work. At this time, under the fixing action of the threaded groove 17, the worker can arbitrarily install or dismount the connecting sleeve 16 and the compressed air pipeline according to the use requirement. In the initial state, the clamping jaw of the clamp 9 is in the open state so as to clamp the workpiece. After the preparation work is completed, the worker first places the workpiece at the center position of the clamp 9, and then opens the compressed air pipeline to make the compressed air first pass through the upper air guide pipe 15 and then be transported into the cavity between the sleeve 14 and the shell 1. When the cavity between the sleeve 14 and the shell 1 is filled with compressed air and reaches a certain air pressure, the compressed air enters the shell 1 through the air pipe 2. At this time, the strong air pressure of the compressed air impacts the baffle 4 downward. When the source of the compressed air is continuously transported inward, the compressed air impacts the baffle 4 downward to the limit position, i.e. the baffle 4 moves downward to the bottom and contacts the inner bottom of the shell 1. At this time, the baffle 4 drives the vertical column 5 to move downward, the vertical column 5 drives the connecting rod 6 to rotate, i.e. each connecting rod 6 moves close to one side of the clamp 9, each connecting rod 6 drives the extrusion block 7 on the same side to move close to one side of the clamp 9, so that the extrusion block 7 contacts the clamp 9 at the heart end and makes the clamping jaw of the clamp 9 close. At this time, the workpiece is clamped by the clamp 9, which is convenient for the worker to process the workpiece. After the workpiece is processed, the worker extracts the compressed air in the shell 1 through the compressed air pipeline. At this time, the compressed air is first extracted through the air pipe 2, then enters the cavity between the sleeve 14 and the shell 1, and finally is completely extracted back to the compressed air pipeline through the lower air guide pipe 15. At this time, a strong suction force is generated in the shell 1, i.e. at this time, as the compressed air in the shell 1 decreases and the suction force increases, the baffle 4 is driven to move upward until it returns to the initial state. At the same time, the baffle 4 drives the vertical column 5 to move upward, the vertical column 5 drives the connecting rod 6 to rotate, i.e. each connecting rod 6 moves away from one side of the clamp 9, each connecting rod 6 drives the extrusion block 7 on the same side to move away from one side of the clamp 9, so that the extrusion block 7 is separated from the clamp 9 at the heart end. At this time, the clamp 9 is not clamped, the clamping jaw of the clamp 9 is opened outward, so that the workpiece is not clamped. Subsequently, the worker can take out the processed workpiece, and at this time, the fixing, processing and taking out of the workpiece are completed. If the workpiece needs to be fixed and processed again, the above steps can be repeated.
[0024] The workpiece will produce a large amount of dust or debris and other impurities in the machining process, these dust or debris and other impurities accumulated to a certain extent on the chuck without cleaning, these dust or debris and other impurities may enter the shell 1 inside, and cause the chuck function failure or shortened service life, but the dustproof pneumatic chuck in the work, the compressed air pipeline will send compressed air into the shell 1 inside, at this time the pressure relief valve 12 is in the open state, and part of the compressed air is pumped into the gas pipe 11 through the connecting pipe 13, at this time the gas pipe 11 will send compressed air into the shunt disc 10, the shunt disc 10 will send the compressed air evenly to the outside, that is, the compressed air in the shunt disc 10 is sent out through the blowing hole, at this time, a certain air pressure is generated at the outlet of each blowing hole, the air pressure blows away the debris and other impurities and dust generated when the workpiece is machined, that is, to avoid dust or debris and other impurities into the shell 1 inside, the gap of the clamp 9 and so on, effectively protect the pneumatic chuck, help to prolong the service life of the dustproof pneumatic chuck.
[0025] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A dust-proof pneumatic chuck, characterized by comprising: The utility model relates to a kind of air supply devices, including shell (1), air pipe (2), baffle (4), column (5), connecting rod (6), extrusion block (7), clamp (9), shunt disc (10), gas pipe (11), pressure relief valve (12), connecting pipe (13) and sleeve (14), air pipe (2) is connected and communicated in the inner wall of shell (1), sleeve (14) is rotatably connected on the outer wall of shell (1), cavity is arranged between the inner wall of sleeve (14) and the outer wall of shell (1), column (5) is slidably connected in shell (1), baffle (4) is fixedly connected on one side of column (5), baffle (4) is slidably connected with shell (1), baffle (4) one side is in close contact with the bottom of air pipe (2), at least two connecting rods (6) are rotatably connected in annular array on the other side of column (5), extrusion block (7) is rotatably connected on one end of each connecting rod (6), clamp (9) is threadedly connected on the top of shell (1), clamp (9) is projected on the top of shell (1) on upper portion, each extrusion block (7) is in close contact with clamp (9) on centripetal end, four slide grooves (8) are arranged in the inner side of shell (1), each slide groove (8) is slidably connected with corresponding extrusion block (7), shunt disc (10) is fixedly connected on the top of shell (1), shunt disc (10) inner wall is in close contact with the outer wall of clamp (9), at least one gas pipe (11) is connected and communicated on one side of shunt disc (10), each gas pipe (11) is located in shell (1), pressure relief valve (12) is connected and communicated on one end of each gas pipe (11), connecting pipe (13) is connected and communicated on one side of each pressure relief valve (12).
2. The dust-proof pneumatic chuck according to claim 1, wherein It further includes gas guide pipe (15) and connecting sleeve (16), symmetrically connected and communicated with gas guide pipe (15) on the outer wall of sleeve (14), two gas guide pipes (15) are communicated with air pipe (2) through cavity, connecting sleeve (16) is connected and communicated on one end of each gas guide pipe (15), thread groove (17) is arranged in the inner wall of each connecting sleeve (16).
3. The dust-proof pneumatic chuck according to claim 2, wherein At least two mounting holes (18) are arranged in annular array on one side of shell (1).
4. The dust-proof pneumatic chuck according to claim 3, wherein Baffle (4) is tightly attached to the inner wall of shell (1).
5. A dust-proof pneumatic chuck according to claim 4, wherein At least two air blowing holes are arranged in annular array on the outer wall of shunt disc (10).
6. A dust-proof pneumatic chuck according to claim 5, wherein The material of gas guide pipe (15) is polyurethane.