Air pressure clamping device for cylinder barrel of honing machine

Abstract

The utility model relates to a honing machine cylinder barrel air pressure clamping device which comprises a base, an air pressure clamping mechanism fixed to the upper end of the base, a top plate fixed to the upper end of the air pressure clamping mechanism and an air inlet nozzle fixed to the side face of the air pressure clamping mechanism. The clamping stability is improved, and the pressure on the cylinder wall is reduced; according to the novel honing machine cylinder barrel air pressure clamping device, the air inlet nozzle is matched with the air pressure clamping mechanism, air leakage of the air pressure clamping mechanism can be prevented when pressure intensity is increased, stability of the internal pressure intensity of the air pressure clamping mechanism is guaranteed, clamping stability is guaranteed, uniform and stable clamping of the cylinder barrel can be achieved through the novel honing machine cylinder barrel air pressure clamping device, and the honing machine cylinder barrel clamping efficiency is improved. And the clamping stability in the production process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal part processing field especially relates to a honing machine cylinder pressure clamping device. BACKGROUND

[0002] In the field of mechanical processing, the honing machine has very high requirements for the processing precision of the cylinder, and the stability and precision of the cylinder clamping directly affect the quality of honing processing. The traditional cylinder clamping method mostly adopts mechanical clamps, such as three-jaw chucks, four-jaw chucks, etc. However, these mechanical clamps have many drawbacks: on the one hand, when clamping the cylinder, the mechanical clamps have limited contact points, the clamping force is unevenly distributed, which easily causes the cylinder to be subjected to excessive local force, resulting in deformation of the cylinder wall, which in turn affects the cylindricity and other form and position tolerances of the cylinder, and reduces product quality; on the other hand, with vibration during the processing process and long-term use, the clamping precision of the mechanical clamps is prone to decline, and frequent debugging and calibration are required, increasing downtime and labor costs. Stable clamping is crucial for subsequent production steps, but existing clamping devices still have some shortcomings in clamping the cylinder, such as the patent with publication number CN219465509U discloses a circular ring clamp based on gas adsorption and clamping. The device still has the following shortcomings in the field of cylinder clamping: the gas pressure device needs to be continuously started, cannot achieve good sealing, and the clamping force is not uniform. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a honing machine cylinder pressure clamping device, which solves the problems in the prior art. Through the carefully designed gas pressure clamping mechanism, the cylinder can be clamped uniformly by gas pressure, effectively avoiding the situation of excessive local force, ensuring the cylindricity of the cylinder and improving product quality. Through the cooperation of the gas pressure clamping mechanism and the air inlet nozzle, not only the clamping stability is improved, but also air leakage is prevented, the internal pressure is stabilized, the continuity and stability of honing processing are ensured, and rapid inflation and deflation are achieved, simplifying the operation process and improving production efficiency.

[0005] (II) Technical solutions

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a honing machine cylinder pressure clamping device, comprising a base, a gas pressure clamping mechanism fixed on the upper end of the base, a top plate fixed on the upper end of the gas pressure clamping mechanism, and an air inlet nozzle fixed on the side of the gas pressure clamping mechanism.

[0007] The air inlet nozzle comprises a pressing piston installed in the air pressure clamping mechanism, a pull spring fixed in the pressing piston, a first sealing ring fixed on the side of the pressing piston, a second sealing ring fixed on the side of the first sealing ring, a quick release base fixed on the side of the second sealing ring and a quick release air nozzle threadedly connected on the side of the quick release base.

[0008] Preferably, the air pressure clamping mechanism comprises an outer cylinder fixed on the upper end of the base and an inner cylinder fixed in the outer cylinder.

[0009] Preferably, the inner cylinder is internally provided with an air pressure chamber, and the side of the inner cylinder is provided with a first air inlet hole.

[0010] Preferably, the side of the outer cylinder is provided with a second air inlet hole.

[0011] Preferably, the upper end of the base is provided with a sealing groove, and the sealing groove is fixed with a sealing rubber.

[0012] Preferably, the side of the pressing piston is provided with a movable plate.

[0013] Preferably, the side of the quick release base is provided with an inclined surface corresponding to the movable plate.

[0014] (Three) beneficial effects

[0015] The utility model discloses a honing machine cylinder air pressure clamping device, and the air pressure clamping mechanism is carefully designed to clamp the cylinder with uniform air pressure, effectively avoids the cylinder wall deformation problem caused by uneven clamping force of the traditional mechanical clamp, and practically guarantees the cylindricity and other form and position tolerances of the cylinder, so that the cylinder size precision after honing is higher, and the surface quality is better, which lays a solid foundation for the high-performance operation of subsequent products. The air pressure clamping mechanism and the air inlet nozzle are perfectly matched, air leakage is strictly prevented during the inflation process, the pressure in the air pressure clamping mechanism is stable and uniform, the cylinder can be stably clamped throughout the honing process, the machining error caused by unstable clamping is greatly reduced, and the utility model is an innovative technology with wide application prospect. DRAWINGS

[0016] Figure 1 It is the overall schematic view of the utility model.

[0017] Figure 2 It is the schematic view of the air inlet nozzle in the utility model.

[0018] Figure 3 It is the schematic view of the air pressure clamping mechanism in the utility model.

[0019] Figure 4 It is the schematic view of the inner cylinder in the utility model.

[0020] Figure 5 It is the schematic view of the outer cylinder in the utility model.

[0021] Figure 6 It is the schematic view of base in the utility model.

[0022] Figure 7 It is the schematic view of extrusion piston in the utility model.

[0023] Figure 8 It is the schematic view of quick release base in the utility model.

[0024] In the drawing: 1-base, 101-sealing groove, 102-sealing rubber, 2-air pressure clamping mechanism, 201-outer cylinder, 2011-second air inlet hole, 202-inner cylinder, 2021-air pressure chamber, 2022-first air inlet hole, 3-top plate, 4-air inlet nozzle, 401-extrusion piston, 4011-moving plate, 402-tension spring, 403-first sealing ring, 404-second sealing ring, 405-quick release base, 4051-inclined surface table, 406-quick release air nozzle. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model. Figure 1 -Appendix Figure 8 The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0026] As Figure 1As shown, the utility model provides a technical scheme: a honing machine cylinder pneumatic clamping device, including base 1, fixed on the upper end of base 1's pneumatic clamping mechanism 2, fixed on the upper end of pneumatic clamping mechanism 2's top plate 3 and fixed on the side of pneumatic clamping mechanism 2's air inlet nozzle 4;Base 1 is the basic support part of the whole device, carries pneumatic clamping mechanism 2 and other components. Its upper end is provided with sealing groove 101 for installing sealing rubber 102, which helps to enhance the sealing of the bottom of the device when clamping the cylinder, prevent gas leakage, ensure the stable pressure of the interior of pneumatic clamping mechanism 2. Provide stable support platform for the device, and improve the overall sealing of the device by the setting of sealing groove 101 and sealing rubber 102, guarantee the stability of the clamping process. Pneumatic clamping mechanism 2 uniformly clamps the cylinder by using air pressure, avoids the problem of uneven clamping force distribution caused by the limited contact points of traditional mechanical clamps, effectively prevents the deformation of the cylinder caused by excessive local stress. Can uniformly apply clamping force to the cylinder, guarantee the cylindricity of the cylinder, improve product quality, and through the cooperation with air inlet nozzle 4, ensure the stable internal pressure, improve the stability of clamping, ensure the continuity of honing processing. Top plate 3 is responsible for pressing pneumatic clamping mechanism 2 to prevent air leakage at the bottom, air inlet nozzle 4 is closely matched with pneumatic clamping mechanism 2, prevents pneumatic clamping mechanism 2 from leaking, ensures the stable internal pressure, ensures the stability of the cylinder during the clamping process, and facilitates the installation and maintenance of the device, effectively controls the air inlet process, improves the practicability of the whole device.

[0027] As Figure 2 As shown, air inlet nozzle 4 includes extrusion piston 401 installed in pneumatic clamping mechanism 2, pull spring 402 fixed in the interior of extrusion piston 401, first sealing ring 403 fixed on the side of extrusion piston 401, second sealing ring 404 fixed on the side of first sealing ring 403, quick-release base 405 fixed on the side of second sealing ring 404 and quick-release air nozzle 406 screw-connected on the side of quick-release base 405;Extrusion piston 401 is installed and extruded with inner cylinder 202, so that first sealing ring 403 is expanded to make air inlet nozzle 4 firmly installed on outer cylinder 201, first sealing ring 403 is extruded at the same time extruding second sealing ring 404, second sealing ring 404 seals the gap between outer cylinder 201 and inner cylinder 202, prevents gas overflow. Pull spring 402 is used to reset the sealing ring when replacing air inlet nozzle 4, facilitates the replacement of air nozzle 4, quick-release base 405 realizes fine control of air inlet, improves air inlet efficiency and stability;Quick-release design facilitates the maintenance and replacement of air inlet nozzle 4 components, reduces equipment operation and maintenance cost, improves production continuity. Quick-release air nozzle 406 is screw-connected on the side of quick-release base 405, as an external gas access port, smoothly introduces high-pressure gas into the interior of air inlet nozzle 4, opens the inflation process of pneumatic clamping mechanism 2. Provide a convenient gas access channel, ensure stable gas supply, cooperate with other components of air inlet nozzle 4 to realize rapid inflation and deflation, simplify the operation process, improve production efficiency.

[0028] As Figure 3 shown, the air pressure clamping mechanism 2 includes an outer cylinder 201 fixed on the upper end of the base 1 and an inner cylinder 202 fixed in the outer cylinder 201; the outer cylinder 201 is fixed on the upper end of the base 1, cooperates with the inner cylinder 202 to build the space structure of the clamping cylinder, cooperates with the inner cylinder 202, and uses air pressure to apply uniform force from the outside of the cylinder, which can avoid local stress concentration compared with traditional mechanical clamps, prevent cylinder deformation, ensure cylinder roundness, improve clamping stability, and meet the high-precision processing requirements of honing. The inner cylinder 202 precisely controls the air pressure through the air pressure chamber 2021, cooperates with the first air inlet hole 2022 to ensure that the clamping force is evenly distributed on the inner wall of the cylinder, effectively avoids the uneven clamping force of traditional clamps, improves product quality, and ensures honing precision.

[0029] As Figure 4 shown, the inner cylinder 202 is internally provided with an air pressure chamber 2021, and the side of the inner cylinder 202 is provided with a first air inlet hole 2022; the air pressure chamber 2021 is used to store and distribute gas, and the first air inlet hole 2022 on the side is responsible for introducing gas into the air pressure chamber 2021.

[0030] As Figure 5 shown, the outer cylinder 201 is provided with a second air inlet hole 2011 on the side; for introducing gas into the inner cylinder 202.

[0031] As Figure 6 shown, the upper end of the base 1 is provided with a sealing groove 101, and the sealing rubber 102 is fixed in the sealing groove 101; the sealing groove 101 cooperates with the sealing rubber 102 to effectively fill the gap between the base 1 and the bottom of the cylinder, prevent gas from leaking from the bottom, ensure the stability of the air pressure inside the air pressure clamping mechanism, and facilitate stable clamping.

[0032] As Figure 7 shown, the side of the extrusion piston 401 is provided with a movable plate 4011; the movable plate 4011 cooperates with the inclined surface table 4051 to expand the second sealing ring 404.

[0033] As Figure 8 shown, the side of the quick-release base 405 corresponds to the movable plate 4011 and is provided with an inclined surface table 4051; when the movable plate 4011 impacts the inclined surface table 4051, the second sealing ring 404 will expand outward to fill the gap between the inner cylinder 202 and the outer cylinder 201, preventing gas leakage.

[0034] Working principle:

[0035] In the working process, when the cylinder needs to be clamped for honing, the cylinder is first placed on the base 1, the sealing groove 101 at the upper end of the base 1 and the sealing rubber 102 therein can effectively fill the gap between the bottom of the cylinder and the base, and can preliminarily prevent gas from leaking from the bottom, thereby laying a foundation for subsequent stable air pressure clamping.

[0036] Then, the external air source is connected to the air inlet nozzle 4 through the quick-release air nozzle 406 on the side of the quick-release base 405. The extrusion piston 401 installed in the air pressure clamping mechanism 2 is pushed to move. During the movement of the extrusion piston 401, on the one hand, the movable plate 4011 on the side of the extrusion piston 401 will impact the inclined surface table 4051 on the side of the quick-release base 405, so that the movable plate 4011 is stretched outward, thereby expanding the second sealing ring 404, so that the second sealing ring 404 tightly fills the gap between the inner cylinder 202 and the outer cylinder 201, preventing gas from leaking from this part; on the other hand, the extrusion piston 401 is extruded with the inner cylinder 202, so that the first sealing ring 403 is expanded, so that the air inlet nozzle 4 is firmly installed on the outer cylinder 201, and at the same time, the first sealing ring 403 is extruded and also extrudes the second sealing ring 404, further strengthening the sealing effect, and ensuring that the gas will not leak from the air inlet nozzle and the clamping mechanism connection part during the air inlet process. After the gas enters, the air pressure will further compress the sealing ring, at this time the inner cylinder 202 applies uniform force from the outside of the cylinder, avoiding the problem of uneven distribution of clamping force caused by the limited contact points of the traditional mechanical clamp, effectively preventing the cylinder from being deformed due to excessive local stress, and effectively ensuring the cylindricity of the cylinder. After the workpiece is machined, only the air pressure needs to be unloaded to take out the cylinder.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A honing machine cylinder air pressure chucking device characterized by, The utility model relates to a kind of air pressure clamping mechanism, including base (1), fixed air pressure clamping mechanism (2) on the upper end of base (1), top plate (3) fixed on the upper end of air pressure clamping mechanism (2) and air inlet nozzle (4) fixed on the side of air pressure clamping mechanism (2); The air inlet nozzle (4) includes a squeeze piston (401) installed in the air pressure clamping mechanism (2), a pull spring (402) fixed inside the squeeze piston (401), a first sealing ring (403) fixed on the side of the squeeze piston (401), a second sealing ring (404) fixed on the side of the first sealing ring (403), a quick-release base (405) fixed on the side of the second sealing ring (404), and a quick-release air nozzle (406) threadedly connected on the side of the quick-release base (405).

2. The honing machine cylinder air clamping device according to claim 1, characterized in that, The air pressure clamping mechanism (2) includes an outer cylinder (201) fixed on the upper end of the base (1) and an inner cylinder (202) fixed in the outer cylinder (201).

3. The honing machine cylinder air clamp device according to claim 2, characterized in that, The inner cylinder (202) is provided with an air pressure chamber (2021) inside, and the side of the inner cylinder (202) is provided with a first air inlet hole (2022).

4. The honing machine cylinder air clamp device of claim 2, wherein, The side of the outer cylinder (201) is provided with a second air inlet hole (2011).

5. The honing machine cylinder air clamp device of claim 1, wherein, The upper end of the base (1) is provided with a sealing groove (101), and the sealing groove (101) is fixed with a sealing rubber (102).

6. The honing machine cylinder air clamp device of claim 1, wherein, The side of the squeeze piston (401) is provided with a movable plate (4011).

7. The honing machine cylinder air clamp device of claim 1, wherein, The side of the quick-release base (405) is provided with an inclined surface table (4051) corresponding to the movable plate (4011).

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