A stand-alone modular pneumatic chuck drive mechanism

Abstract

The utility model relates to an independent module type pneumatic chuck drive mechanism, including setting in the casing cylinder base, the middle part of cylinder base is equipped with main shaft hole, and along the even distribution of multiple cylinder units of main shaft hole's outer periphery, cylinder unit includes cylinder cavity, piston and cylinder axle, piston and cylinder axle are installed in cylinder cavity, the cylinder cavity of cylinder unit all links with the gas circuit of gas distribution swivel joint. The utility model optimizes the structure of pneumatic chuck drive mechanism, and the arrangement of cylinder changes from the single big cylinder of center setting to the multiple small cylinder units around the main shaft, so that the whole drive module can be separated out, and the dismounting maintenance is more convenient, is convenient for carrying on the transportation after dismounting, and the production cost is lower, and multiple cylinders are more stable when output clamping force, and clamping is more stable.

Description

Technical Field

[0001] This utility model relates to the field of clamping equipment technology, and in particular to an independent modular pneumatic chuck drive mechanism. Background Technology

[0002] A chuck is a type of clamping equipment that clamps the workpiece to be processed by controlling the movement of the jaw mechanism. A drive mechanism is set inside the chuck, which drives the jaw mechanism to open and close. In the existing technology, the drive mechanism is generally set along the center, and the jaw assembly, opening and closing module and rotation module are connected in series and cannot be independent. This results in the pneumatic chuck having a very large overall size, making installation and maintenance very inconvenient. This problem is even more obvious during transportation.

[0003] Moreover, in order to ensure sufficient clamping force, a single cylinder needs to output more force, which is also more expensive. Once damaged, the entire chuck becomes unusable, which is a significant limitation. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an independent modular pneumatic chuck drive mechanism, which enables each module in the chuck to operate independently, making installation and maintenance more convenient, transportation costs lower, and overall cost savings.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an independent modular pneumatic chuck drive mechanism, including a cylinder base disposed in a housing, a main shaft hole provided in the middle of the cylinder base, and a plurality of cylinder units evenly arranged along the outer periphery of the main shaft hole, each cylinder unit including a cylinder cavity, a piston and a cylinder shaft, the piston and cylinder shaft being mounted in the cylinder cavity, and the cylinder cavities of each cylinder unit being connected to the air passage of the air distribution rotary device.

[0006] In the above technical solution, the cylinder base is provided with two pairs of cylinder units, and each pair of cylinder units drives a set of opening and closing mechanisms and its claw assembly.

[0007] In the above technical solution, four cylinder units are provided on the cylinder base. The cylinder units are arranged in a ring and are evenly distributed on the cylinder base. Weight reduction grooves are provided between adjacent cylinder units.

[0008] In the above technical solution, a first air groove is provided on the inner wall surface of the housing. The first air groove is located on the outer periphery of the cylinder base. Sealing strips are provided on both sides of the first air groove on the outer periphery of the cylinder base. The first air groove communicates with the cylinder cavity and communicates with a second air groove arranged circumferentially on the valve train.

[0009] In the above technical solution, the first air groove communicates with the second air groove through an air guide hole, which is a vent hole provided on the rotating mechanism and the housing.

[0010] In the above technical solution, the outer wall of the gas distribution rotary device is provided with an air inlet that communicates with the second air groove.

[0011] In the above technical solution, the housing includes a base plate, and the cylinder base is connected to the base plate by fixing bolts.

[0012] In the above technical solution, the weight reduction groove is provided with bolt holes, and the fixing bolts pass through the bolt holes and are fixed to the base plate.

[0013] In summary, the advantages of this utility model over traditional technologies are as follows: This utility model optimizes the structure of the pneumatic chuck drive mechanism. The arrangement of the cylinders is changed from a single large cylinder set in the center to multiple small cylinder units arranged around the main shaft. In this way, the entire drive module can be separated, making disassembly and maintenance more convenient, facilitating transportation after disassembly, and reducing production costs. Moreover, the multiple cylinders output clamping force more smoothly, resulting in more stable clamping. Attached Figure Description

[0014] The foregoing and other objects, features and advantages of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the upper part of the chuck; Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure without the outer shell; Figure 3 This is a three-dimensional structural diagram of the present invention and the chuck opening and closing mechanism; Figure 4 This is a three-dimensional structural diagram of the cylinder base in this utility model; Figure 5 This is a schematic diagram of the usage state of this utility model; Figure 6 for Figure 5 Front view diagram; Figure 7 for Figure 6 A cross-sectional view; Figure 8 This is a three-dimensional schematic diagram of the shell; Figure 9 This is a three-dimensional sectional view of the shell. The following are the labels: 100, housing; 110, base plate; 120, first air groove; 200, cylinder base; 210, main shaft hole; 220, sealing strip; 230, weight reduction groove; 231, bolt hole; 300, main shaft; 400, cylinder unit; 410, cylinder chamber; 420, piston; 430, cylinder shaft; 440, fixing bolt; 500, air distribution rotary device; 510, second air groove; 520, air inlet; 600, opening and closing mechanism; 700, chuck assembly; 800, rotating mechanism; 900, air guide hole. Detailed Implementation

[0016] Based on the preferred embodiments of this utility model, and through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0017] The present invention will be further described with reference to the following figures: like Figures 1-4 As shown, an independent modular pneumatic chuck drive mechanism includes a cylinder base 200 disposed in a housing 100. The cylinder base 200 has a spindle hole 210 in the middle, through which a spindle 300 is fitted. Multiple cylinder units 400 are evenly arranged along the outer periphery of the spindle hole 210. Each cylinder unit 400 includes a cylinder chamber 410, a piston 420, and a cylinder shaft 430. The piston 420 and the cylinder shaft 430 are installed in the cylinder chamber 410. The cylinder chambers 410 of each cylinder unit 400 are all connected to the air passage of the air distribution rotary device 500.

[0018] The cylinder base 200 is provided with two pairs of cylinder units 400, each pair of cylinder units 400 driving a set of opening and closing mechanisms 600 and its claw assembly 700.

[0019] like Figure 4 As shown, the cylinder base 200 is provided with four cylinder units 400. The cylinder units 400 are evenly arranged in a ring on the cylinder base 200, and a weight reduction groove 230 is provided between adjacent cylinder units 400.

[0020] like Figure 7 As shown, a first air groove 120 is provided on the inner wall surface of the housing 100. The first air groove 120 is located on the outer periphery of the cylinder base 200. Sealing strips 220 are provided on both sides of the first air groove 120 on the outer periphery of the cylinder base 200. The first air groove 120 communicates with the cylinder cavity 410 and communicates with a second air groove 510 circumferentially arranged on the valve train 500. The air supply to the cylinder unit 400 is entirely achieved through internal channels.

[0021] like Figure 7 As shown, the first air groove 120 is connected to the second air groove 510 through the air guide hole 900, which is a vent hole provided on the rotating mechanism 800 and the housing 100.

[0022] like Figure 6 As shown, the outer wall of the gas distribution rotary device 500 is provided with an air inlet 520 that communicates with the second air groove 510. Air is introduced through the gas distribution rotary device 500, eliminating the need for additional air pipes and facilitating disassembly and assembly.

[0023] like Figure 1 , 7 As shown, the housing 100 includes a base plate 110, and the cylinder base 200 is connected to the base plate 110 by fixing bolts 440. The base plate 110 facilitates the modular transportation and installation of the chuck.

[0024] like Figure 4 As shown, the weight reduction groove 230 is provided with bolt holes 231, and the fixing bolt 440 passes through the bolt holes 231 and is fixed on the base plate 110.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An independent modular pneumatic chuck drive mechanism, characterized in that: The device includes a cylinder base disposed in a housing. The cylinder base has a main shaft hole in the middle and multiple cylinder units are evenly arranged along the outer periphery of the main shaft hole. Each cylinder unit includes a cylinder cavity, a piston, and a cylinder shaft. The piston and cylinder shaft are mounted in the cylinder cavity. The cylinder cavities of each cylinder unit are all connected to the air passage of the valve train.

2. The independent modular pneumatic chuck drive mechanism according to claim 1, characterized in that: The cylinder base is provided with two pairs of cylinder units, each pair of cylinder units drives a set of opening and closing mechanisms and its claw assembly.

3. The independent modular pneumatic chuck drive mechanism according to claim 1, characterized in that: The cylinder base is provided with four cylinder units, which are arranged in a ring and uniformly on the cylinder base. Weight reduction grooves are provided between adjacent cylinder units.

4. The independent modular pneumatic chuck drive mechanism according to claim 3, characterized in that: The inner wall of the housing is provided with a first air groove, which is located on the outer periphery of the cylinder base. Sealing strips are provided on both sides of the first air groove on the outer periphery of the cylinder base. The first air groove communicates with the cylinder cavity and communicates with a second air groove arranged circumferentially on the valve train.

5. The independent modular pneumatic chuck drive mechanism according to claim 4, characterized in that: The first air groove communicates with the second air groove through an air guide hole, which is a vent hole provided on the rotating mechanism and the housing.

6. The independent modular pneumatic chuck drive mechanism according to claim 4, characterized in that: The outer wall of the gas distribution rotary device is provided with an air inlet that communicates with the second air slot.

7. The independent modular pneumatic chuck drive mechanism according to claim 3, characterized in that: The housing includes a base plate, and the cylinder base is connected to the base plate by fixing bolts.

8. The independent modular pneumatic chuck drive mechanism according to claim 7, characterized in that: The weight reduction groove is provided with bolt holes, and the fixing bolts pass through the bolt holes and are fixed to the base plate.

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