Multifunctional independent module type pneumatic chuck

Abstract

A clamping jaw assembly and an opening and closing module are arranged along the periphery of a main shaft, a driving module and a rotating module are both installed on the main shaft, a plurality of air cylinder units are evenly arranged on an air cylinder base of the driving module in the circumferential direction, and the air cylinder units are all connected with an air distribution gyrator. The opening and closing module comprises an opening and closing sliding block and a lifting base, the lifting base is installed on the main shaft and can be driven by the air cylinder unit to ascend and descend along the main shaft, a sliding block groove is formed in the lifting base, the sliding block groove is obliquely formed, and the opening and closing sliding block can move along the sliding block groove when the lifting base ascends and descends and drives a clamping jaw assembly on the opening and closing sliding block to move. The opening and closing module, the driving module, the rotating module and the clamping jaw assembly of the chuck are mutually independent, the arrangement of the air cylinders is changed from a single large air cylinder arranged in the center to a plurality of small air cylinder units arranged around the main shaft, so that the whole driving module can be independent, disassembly, assembly and maintenance are more convenient, and the multiple air cylinders are more stable when outputting clamping force; and clamping is more stable.

Description

Technical Field

[0001] This invention relates to the field of clamping equipment technology, and in particular to a multifunctional independent modular pneumatic chuck. 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. However, the overall size of the pneumatic chuck is very large, which makes installation and maintenance very inconvenient, and this problem is even more obvious during transportation.

[0003] Moreover, the opening and closing are controlled by a single cylinder, resulting in a more concentrated output force and poor operational stability. In addition, the production cost of a single large cylinder is very high. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this invention is to provide a multifunctional independent modular pneumatic chuck. It employs a modular design, with each module operating independently, making installation and maintenance more convenient, reducing transportation costs, and improving clamping stability.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A multifunctional independent modular pneumatic chuck has a housing, an end face, and a rotating module. Multiple jaw assemblies are provided on the end face. A main shaft, an opening / closing module, and a drive module are provided inside the housing. The opening / closing module can drive the jaw assemblies to open and close under the drive of the drive module. The rotating module can drive the chuck to rotate. The jaw assemblies and the opening / closing module are arranged along the outer periphery of the main shaft. The drive module and the rotating module are both mounted on the main shaft. The drive module includes a cylinder base, on which multiple cylinder units are evenly arranged circumferentially. Each cylinder unit is connected to a rotary valve. The opening / closing module includes an opening / closing slider and a lifting seat. The lifting seat is mounted on the main shaft and can move up and down along the main shaft under the drive of the cylinder units. The lifting seat has a slider groove, which is inclined. The opening / closing slider has a wedge-shaped sliding part. The opening / closing slider can move along the slider groove when the lifting seat moves up and down, driving the jaw assemblies on it to move.

[0006] In the above technical solution, the rotating module includes a rotating motor, a rotating gear is driven to the rotating motor, and the main shaft and cylinder base are mounted on the rotating gear through a connecting seat and can rotate with the rotating gear.

[0007] In the above technical solution, the claw assembly includes a claw and a claw seat. The claw seat is mounted on the opening and closing slider. The opening and closing slider is provided with multiple adjustment holes, and the claw seat is fixed on the adjustment holes.

[0008] In the above technical solution, the upper part of the spindle is provided with a flange sealing edge, the end face is provided with a jaw seat groove, the jaw seat is installed in the jaw seat groove, a sealing plate is provided between the jaw seat and the flange sealing edge, one end of the sealing plate is embedded in the jaw seat groove and fixed by bolts, and the other end is fastened to the flange sealing edge.

[0009] In the above technical solution, the lifting seat is ring-shaped and mounted on the main shaft, and can move axially under the push of the cylinder shaft in the cylinder unit.

[0010] In the above technical solution, the main shaft is provided with two lifting seats, each lifting seat is connected to a pair of cylinder units, and two paired chuck assemblies are installed in two slider slots provided on one lifting seat. The inner lifting seat is installed on the main shaft, and the outer lifting seat is installed on the outer wall of the inner lifting seat. A cylinder shaft is connected to the outer circumferential surface of the outer lifting seat, and a cylinder shaft is connected to the connecting ear of the inner lifting seat.

[0011] In the above technical solution, the cylinder unit includes multiple cylinder chambers disposed on the cylinder base, the cylinder chambers are connected to the valve train via air passages, and weight reduction grooves are provided between adjacent cylinder chambers of the cylinder base.

[0012] In the above technical solution, the groove opening of the slider groove is provided with a limiting stop, and the opening and closing slider is provided with a limiting step corresponding to the limiting stop.

[0013] 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. A second air groove is provided on the outer periphery of the air distribution rotary device. The first air groove and the second air groove are connected by an air guide hole. The air guide hole passes through the rotating module and its two ends are respectively connected to the first air groove and the second air groove.

[0014] In summary, the advantages of the technical solution of the present invention compared with traditional technical means are as follows: the present invention optimizes the structure of the pneumatic chuck, making the opening and closing module, driving module, rotation module and jaw assembly of the chuck independent of each other.

[0015] The arrangement of the cylinders has been changed from a single large cylinder in the center to multiple small cylinder units arranged around the main shaft. This makes the entire drive module independent, making disassembly and maintenance more convenient and transportation easier after disassembly. In addition, multiple cylinders output clamping force more smoothly, resulting in more stable clamping.

[0016] The inclined design of the slider groove and the opening / closing slider greatly reduces the radial size of the chuck and makes the clamping force more stable.

[0017] The cylinder of the drive module can have a built-in air passage, which provides better sealing and a longer service life. Attached Figure Description

[0018] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective; Figure 3 This is a three-dimensional structural diagram of the present invention with part of the shell removed; Figure 4 for Figure 3 A schematic diagram with the rotating module removed; Figure 5 This is a schematic diagram of the driving module and the opening / closing module in this invention; Figure 6 This is a schematic diagram of the claw assembly and opening / closing module in this invention; Figure 7 for Figure 6 A cross-sectional view; Figure 8 This is a schematic cross-sectional view of the entire invention; Figure 9 This is a three-dimensional structural diagram of the chuck seat in this invention; Figure 10 for Figure 9 A diagram showing the view from below; Figure 11 This is a three-dimensional structural diagram of the sealing sheet in this invention; Figure 12 for Figure 11 A side view diagram; Figure 13 This is a three-dimensional schematic diagram of the shell; Figure 14 This is a three-dimensional sectional view of the shell. The following are the labeling elements: 100, housing; 110, base; 120, first air groove; 200, end face; 210, claw seat groove; 300, rotating module; 310, rotating gear; 320, connecting seat; 400, claw assembly; 410, claw; 420, claw seat; 421, sealing plate; 422, slot; 423, mounting protrusion; 500, opening and closing module; 510, opening and closing slider; 511, adjusting hole; 512, limit. 513. Adjustment bayonet; 520. Lifting seat; 521. Connecting ear; 530. Slider groove; 531. Limit stop; 600. Main shaft; 610. Flange sealing edge; 700. Drive module; 710. Cylinder base; 711. Sealing strip; 720. Cylinder unit; 721. Cylinder shaft; 730. Air distribution rotary head; 731. Second air groove; 740. Cylinder chamber; 750. Weight reduction groove; 760. Air guide hole. Detailed Implementation

[0020] Based on the preferred embodiments of the present invention, and through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0021] The invention will be further described with reference to the following figures: like Figures 1-11 As shown, a multifunctional independent modular pneumatic chuck includes a housing 100, an end face 200, and a rotating module 300. The end face 200 is provided with multiple jaw assemblies 400. The housing 100 contains an opening / closing module 500, a main shaft 600, and a drive module 700. The opening / closing module 500, driven by the drive module 700, can drive the jaw assemblies 400 to open and close. The rotating module 300 can drive the chuck to rotate. The chuck assembly 400 and the opening / closing module 500 are arranged along the outer periphery of the main shaft 600, and the drive module 700 and the rotation module 300 are both mounted on the main shaft 600. The drive module 700 includes a cylinder base 710, on which a plurality of cylinder units 720 are evenly arranged circumferentially. Each cylinder unit 720 is connected to a valve train 730. The opening and closing module 500 includes an opening and closing slider 510 and a lifting seat 520. The lifting seat 520 is mounted on the main shaft 600 and can move up and down along the main shaft 600 under the drive of the cylinder unit 720. The lifting seat 520 is provided with a slider groove 530, which is inclined. The opening and closing slider 510 is provided with a wedge-shaped sliding part. The opening and closing slider 510 can move along the slider groove 530 when the lifting seat 520 moves up and down, and drive the claw assembly 400 on it to move. Since the slider groove 530 is inclined, the opening and closing slider 510 will also move horizontally while moving up and down along the slider groove 530.

[0022] The rotating module 300 includes a rotating motor, on which a rotating gear 310 is driven. The main shaft 600 and the cylinder base 710 are mounted on the rotating gear 310 via a connecting seat 320 and can rotate with the rotating gear 310 under the drive of the rotating motor.

[0023] like Figure 13 , 14 As shown, a base 110 is provided on the housing 100, and the cylinder base 710 is fixed to the base 110 by bolts. The base 110 facilitates the modular disassembly and transportation of the entire chuck.

[0024] The claw assembly 400 includes a claw 410 and a claw seat 420. The claw seat 420 is mounted on the opening and closing slider 510. The opening and closing slider 510 is provided with a plurality of adjustment holes 511. The claw seat 420 is fixed in the adjustment holes 511.

[0025] like Figure 4 , 11 As shown in Figure 12, the upper part of the main shaft 600 is provided with a flange sealing edge 610, and the end face 200 is provided with a claw seat groove 210. The claw seat 420 is installed in the claw seat groove 210. A sealing plate 421 is provided between the claw seat 420 and the flange sealing edge 610. One end of the sealing plate 421 is embedded in the groove 422 on the claw seat 420 and fixed by bolts, and the other end is fastened to the flange sealing edge 610. The sealing plate 421 can achieve the sealing of the end face 200 and meet the modular design requirements.

[0026] like Figure 10 As shown, the bottom of the claw seat 420 is provided with a cross-shaped mounting protrusion 423, and the upper part of the opening and closing slider 510 is provided with an adjustment slot 513. The mounting protrusion 423 can be inserted into one of the adjustment slots 513 to facilitate the adjustment of the stroke of the claw assembly 400.

[0027] like Figure 3 , 4As shown in Figures 5 and 6, the lifting seat 520 is annularly mounted on the main shaft 600 and can move axially under the push of the cylinder shaft 721 in the cylinder unit 720. The main shaft 600 is provided with two lifting seats 520, and each lifting seat 520 is connected to a pair of cylinder units 720. Two paired claw assemblies 400 are installed in two slider grooves 530 provided on one lifting seat 520.

[0028] The inner lifting seat 520 is mounted on the main shaft 600, and the outer lifting seat 520 is mounted on the outer wall of the inner lifting seat 520. Two connecting ears 521 are symmetrically arranged on the outer periphery of the inner lifting seat 520. Two cylinder shafts 721 are symmetrically connected to the outer periphery of the outer lifting seat 520. The cylinder shafts 721 are connected to the connecting ears 521 of the inner lifting seat 520.

[0029] like Figure 4 , 5 As shown, the cylinder unit 720 includes a plurality of cylinder chambers 740 disposed on the cylinder base 710. The cylinder chambers 740 are connected to the valve train 730 through an air passage. A weight reduction groove 750 is provided between adjacent cylinder chambers 740 of the cylinder base 710. The weight reduction groove can reduce the weight of the cylinder base 710, save energy consumption during operation, and also facilitate transportation.

[0030] like Figure 5 As shown, the groove of the slider groove 530 is provided with a limiting stop 531, and the sliding part of the opening and closing slider 510 is provided with a limiting step 512 corresponding to the limiting stop 531.

[0031] like Figure 8 As shown, the inner wall of the housing 100 is provided with a first air groove 120, which is located on the outer periphery of the cylinder base 710. Sealing strips 711 are provided on both sides of the cylinder base 710 on the outer periphery of the first air groove 120. The outer periphery of the air distribution rotary device 730 is provided with a second air groove 731. The first air groove 120 and the second air groove 731 are connected by an air guide hole 760. The air guide hole 760 passes through the rotating gear 310 and the connecting seat 320 in the rotating module 300, and its two ends are respectively connected to the first air groove 120 and the second air groove 731. The present invention uses air grooves and air holes for air intake. Only an external air passage needs to be connected to the air distribution rotary device 730. The structure is simple and the installation and maintenance are more convenient.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multifunctional independent modular pneumatic chuck, comprising a housing, an end face, and a rotating module, wherein multiple jaw assemblies are provided on the end face, and a main shaft, an opening / closing module, and a drive module are provided inside the housing; the opening / closing module can drive the jaw assemblies to open and close under the drive module, and the rotating module can drive the chuck to rotate. Its features are: The chuck assembly and opening / closing module are arranged along the outer periphery of the main shaft, and the drive module and rotation module are both mounted on the main shaft. The drive module includes a cylinder base, on which multiple cylinder units are evenly arranged circumferentially. Each cylinder unit is connected to a rotary valve. The opening and closing module includes an opening and closing slider and a lifting seat. The lifting seat is mounted on the main shaft and can move up and down along the main shaft under the drive of the cylinder unit. The lifting seat is provided with a slider groove, which is inclined. The opening and closing slider is provided with a wedge-shaped sliding part. The opening and closing slider can move along the slider groove when the lifting seat moves up and down, and drive the claw assembly on it to move.

2. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The rotating module includes a rotating motor, on which a rotating gear is driven. The main shaft and the cylinder base are mounted on the rotating gear via a connecting seat and can rotate with the rotating gear.

3. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The claw assembly includes a claw and a claw seat. The claw seat is mounted on the opening and closing slider. The opening and closing slider is provided with multiple adjustment holes, and the claw seat is fixed on the adjustment holes.

4. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The bottom of the claw seat is provided with a cross-shaped mounting protrusion, and the upper part of the opening and closing slider is provided with an adjustment slot. The mounting protrusion can be inserted into one of the adjustment slots to facilitate the adjustment of the stroke of the claw assembly.

5. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The upper part of the main shaft is provided with a flange sealing edge, and the end face is provided with a jaw seat groove. The jaw seat is installed in the jaw seat groove, and a sealing plate is provided between the jaw seat and the flange sealing edge. One end of the sealing plate is embedded in the jaw seat groove and fixed by bolts, and the other end is fastened to the flange sealing edge.

6. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The lifting seat is ring-shaped and mounted on the main shaft, and can move axially under the push of the cylinder shaft in the cylinder unit.

7. The multifunctional independent modular pneumatic chuck according to claim 6, characterized in that: The main shaft is provided with two lifting seats, each lifting seat is connected to a pair of cylinder units, and two paired chuck assemblies are installed in two slider slots provided on one lifting seat. The inner lifting seat is installed on the main shaft, and the outer lifting seat is installed on the outer wall of the inner lifting seat. The outer peripheral surface of the outer lifting seat is connected to a cylinder shaft, and the connecting ear of the inner lifting seat is connected to a cylinder shaft.

8. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The cylinder unit includes multiple cylinder chambers disposed on a cylinder base. The cylinder chambers are connected to a rotary valve via an air passage. Weight reduction grooves are provided between adjacent cylinder chambers of the cylinder base.

9. The multifunctional independent modular pneumatic chuck according to claim 1, characterized in that: The groove of the slider is provided with a limiting stop, and the opening and closing slider is provided with a limiting step corresponding to the limiting stop.

10. The multifunctional independent modular pneumatic chuck according to claim 1, 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 outer periphery of the cylinder base on the first air groove. The outer periphery of the air distribution rotary device is provided with a second air groove. The first air groove and the second air groove are connected by an air guide hole. The air guide hole passes through the rotating module and its two ends are respectively connected to the first air groove and the second air groove.

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