CN217833249U

CN217833249U - Automatic clamping mechanism of automatic drill grinding machine

Info

Publication number: CN217833249U
Application number: CN202222085036.7U
Authority: CN
Inventors: 袁惠波
Original assignee: Dongguan Welsh Machinery Equipment Co ltd
Current assignee: Dongguan Welsh Machinery Equipment Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-18
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses an automatic grind automatic fixture of drill point machine, the on-line screen storage device comprises a base, first linear motion structure, displacement platform, second linear motion structure, horizontal rotating-structure, vertical rotating-structure and clamping structure, first linear motion structure fixed mounting is on the base, displacement platform includes sliding connection's first platform and second platform, first platform is located first linear motion structure, and along first linear motion structure horizontal slip, second linear motion structure and first platform looks fixed connection, and it slides around first platform to drive the second platform, horizontal rotating-structure installs on the second platform, vertical rotating-structure installs on horizontal rotating-structure, clamping structure is connected with vertical rotating-structure looks complete rotation. The utility model discloses structural configuration is reasonable, and the mechanism is simple and convenient, with low costs, and operating stability is good, and operation is simple smooth, and automation is efficient, has improved automated production's productivity and efficiency.

Description

Automatic clamping mechanism of automatic drill grinding machine

Technical Field

The utility model relates to the technical field of machining, especially, relate to automatic fixture of automatic grinding drill bit machine.

Background

At present, when a specific drill bit is ground and processed in the existing processing operation, the drill bit needs to be clamped by a clamping mechanism and is driven to move to a specified position to carry out operations such as cutting edge correction, concentricity detection compensation and processing treatment, the operation is complex, the efficiency is low, the productivity and the efficiency of automatic production are influenced, and the mechanism is complex, the cost is high, and the operation stability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic fixture of automatic grinding drill point machine.

According to the utility model discloses an aspect provides automatic fixture of automatic grinding drill point machine, the on-line screen storage device comprises a base, first linear motion structure, displacement platform, second linear motion structure, horizontal rotation structure, vertical rotation structure and clamping structure, first linear motion structure fixed mounting is on the base, displacement platform includes sliding connection's first platform and second platform, first platform is located first linear motion structure, and along first linear motion structure horizontal slip, second linear motion structure and first platform looks fixed connection, and drive the second platform and slide around first platform, horizontal rotation structure installs on the second platform, vertical rotation structure installs on horizontal rotation structure, clamping structure is connected with vertical rotation structure looks complete rotation.

In some embodiments, the first linear motion structure includes a first linear motion module, two first slide rails and two first slide blocks, the first linear motion module is fixedly mounted on the base, the two first slide rails are mounted on two sides of the first linear motion module, the two first slide blocks are respectively in sliding connection with the two first slide rails, the first linear motion module is provided with a first ball screw sleeve, and the first platform is fixedly connected with the first ball screw sleeve and the two first slide blocks.

In some embodiments, the displacement platform further includes a second slide rail and a second slider, the second slide rail is mounted on the first platform, the second linear motion structure is provided with a second motor, a second screw rod and a second ball screw sleeve, the second motor is fixedly connected with the first platform, the second ball screw sleeve moves back and forth along the second screw rod, the second platform is fixedly connected with the second ball screw sleeve, the second platform is located above the first platform, and the second slider is mounted at the bottom of the second platform and is slidably connected with the second slide rail.

In some embodiments, the transverse rotation structure includes a support frame, a third motor, a first coupler, a first flange assembly, and an installation disc, the support frame is fixedly installed on the second platform, the first flange assembly is embedded on the support frame, the third motor and the first coupler are located below the support frame, the first coupler is fixedly connected with the support frame, the third motor is axially connected with one end of the first flange assembly through the first coupler, the installation disc is located above the support frame and axially connected with the other end of the first flange assembly, and the third motor drives the installation disc to rotate transversely and circumferentially through the first coupler and the first flange assembly.

In some embodiments, the longitudinal rotating structure includes a first fixing seat, a second rotary power assembly and a second flange assembly, the first fixing seat is fixedly connected with the mounting disc, the second rotary power assembly includes a fourth motor and a second coupler, the second coupler is fixedly connected with the first fixing seat, the second flange assembly is axially connected with the fourth motor through a second coupler and is clamped in the first fixing seat, and the first fixing seat is provided with an air inlet joint and an air outlet joint.

In some embodiments, the clamping structure includes a clamping mounting plate, a cover plate, a clamping jaw assembly, an air cylinder assembly, a second fixing seat, an air disc assembly, a leveling assembly and a third flange, the third flange is clamped with the first fixing seat and is axially connected with the second flange assembly, a fourth motor drives the third flange to longitudinally and circumferentially rotate through a second coupling and the second flange assembly, the air disc assembly is wound on the third flange and is arranged in the first fixing seat, the air disc assembly includes an air inlet disc and an air outlet disc, the second fixing seat is connected with the third flange, the leveling assembly includes a plurality of leveling devices which are symmetrically arranged, the leveling devices are all mounted on the second fixing seat and the third flange, the clamping mounting plate is vertically connected with the second fixing seat, the air cylinder assembly and the clamping jaw assembly are both fixedly mounted on the clamping mounting plate, and the cover plate is clamped above the air cylinder assembly and the clamping jaw assembly and is fixedly connected with the clamping mounting plate.

In some embodiments, the cylinder assembly includes a cylinder, a first spring, a second spring, a push-pull member and a push-pull member fixing block, the cylinder is mounted on the clamping mounting plate, the push-pull member fixing block is placed on the clamping mounting plate, the push-pull member is fixedly mounted on the push-pull member fixing block, the push-pull member fixing block is fixedly connected to an output end of the cylinder, one end of the first spring and one end of the second spring are respectively mounted on the second fixing base, the other end of the first spring and the other end of the second spring are respectively fixedly connected to the push-pull member, the first spring and the second spring are respectively located on the left side and the right side of the cylinder, one end of the air inlet plate is communicated with the air inlet joint, the other end of the air inlet plate is communicated with the cylinder, one end of the air outlet plate is communicated with the air outlet joint, and the other end of the air outlet plate is communicated with the cylinder.

In some embodiments, the clamping jaw assembly includes a first clamping jaw, a second clamping jaw, a third slide rail, a fourth slide rail, a third slider, a fourth slider, a fifth slider and a sixth slider, where the third slide rail and the fourth slide rail are parallel to each other and are both fixedly mounted on the clamping mounting plate, the third slider and the fourth slider are respectively and fixedly connected to the first clamping jaw and the second clamping jaw, the third slider and the fourth slider are respectively and slidably connected to the third slide rail, the fifth slider and the sixth slider are respectively and fixedly connected to the first clamping jaw and the second clamping jaw, the fifth slider and the sixth slider are respectively and slidably connected to the fourth slide rail, and the push-pull member is connected to the first clamping jaw and the second clamping jaw in a clamping manner.

In some embodiments, the push-pull piece is provided with a left clamping arm, a middle push block and a right clamping arm from left to right in sequence, the middle push block is positioned between the first clamping jaw and the second clamping jaw and is matched with the shapes of the first clamping jaw and the second clamping jaw, the first clamping jaw is positioned between the left clamping arm and the middle push block, and the second clamping jaw is positioned between the right clamping arm and the middle push block.

In some embodiments, the first clamping jaw and the second clamping jaw are bilaterally symmetrical, the first clamping jaw is provided with a detachable first chuck, the second clamping jaw is provided with a detachable second chuck, and the second chuck is provided with a rotatable clamping tongue piece.

The utility model has the advantages that: the utility model discloses a set up first linear motion structure and drive the first platform and remove about, second linear motion structure drives the second platform back-and-forth movement, make clamping structure remove the assigned position, it gets to bore to chew in proper order to press from both sides, the blade correction is chewed to the brill, concentricity detects, operations such as abrasive machining processing, transverse rotation structure drives vertical rotating structure and clamping structure lateral rotation, the clamping structure clamp of being convenient for gets and removes the brill and chew, vertical rotating structure drives clamping structure and carries out vertical rotation, the concentricity of being convenient for clamping structure adjustment brill, clamping structure is used for pressing from both sides to get the brill and chews the grinding, brill mouth processing. The utility model discloses structural configuration is reasonable, and the mechanism is simple and convenient, with low costs, and operating stability is good, and operation is simple smooth, and automation is efficient, has improved automated production's productivity and efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an automatic clamping mechanism of an automatic drill grinding machine according to an embodiment of the present invention.

Fig. 2 is an exploded view of an automatic clamping mechanism of an automatic drill grinding machine according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a base and a first linear motion structure of an automatic clamping mechanism of an automatic drill grinding machine according to an embodiment of the present invention.

Fig. 4 is a top view of the displacement platform and the second linear motion structure of the automatic clamping mechanism of the automatic drill grinding machine according to an embodiment of the present invention.

Fig. 5 is a left side view of the displacement platform and the second linear motion structure of the automatic clamping mechanism of the automatic drill point grinding machine according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a transverse rotation structure of an automatic clamping mechanism of an automatic drill point grinding machine according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of the vertical rotation structure and the clamping structure of the automatic clamping mechanism of the automatic drill grinding machine according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of the clamping structure of the automatic clamping mechanism of the automatic drill point grinding machine according to an embodiment of the present invention.

Fig. 9 is an exploded view of the clamping structure of the automatic clamping mechanism of the automatic drill grinding machine according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples.

Referring to fig. 1 to 9, the utility model provides an automatic clamping mechanism of automatic drill grinding machine, including base 1, first linear motion structure 2, displacement platform 3, second linear motion structure 4, horizontal rotating-structure 5, vertical rotating-structure 6 and clamping structure 7.

The first linear motion structure 2 includes a first linear motion module 21, a first slide rail 22, and a first slider 23. The first linear motion module 21 is fixedly installed on the base 1, the number of the first slide rails 22 is two, the two first slide rails 22 are installed on two sides of the first linear motion module 21, the number of the first slide blocks 23 is two, and the two first slide blocks 23 are respectively connected with the two first slide rails 21 in a corresponding sliding manner. The first linear motion module 21 is provided with a first ball screw housing 211.

The displacement platform 3 comprises a second slide rail 33, a second slide block 34, a first platform 31 and a second platform 32 which are connected in a sliding manner. The first platform 31 is located on the first linear motion module 21, and is fixedly connected to the first ball screw sleeve 211 and the two sets of first sliders 23, and slides left and right along the first linear motion module 21. The second slide rail 33 is mounted on the first platform 31.

The second linear motion structure 4 is provided with a second motor 41, a second screw 42, and a second ball screw housing 43. The second motor 41 is fixedly connected with the first platform 31, and the second ball screw sleeve 43 moves back and forth along the second screw rod 42. The second platform 32 is located above the first platform 31 and is fixedly connected with the second ball screw sleeve 43. The second slide block 34 is mounted at the bottom of the second platform 32 and is connected with the second slide rail 33 in a sliding manner. The second linear motion structure 4 drives the second platform 32 to slide back and forth along the first platform 31.

The transverse rotating structure 5 comprises a support frame 51, a third motor 52, a first coupling 53, a first flange assembly 54 and a mounting disc 55. The supporting frame 51 is fixedly arranged on the second platform 32, the first flange assembly 54 is embedded on the supporting frame 51, and the third motor 52 and the first coupler 53 are positioned below the supporting frame 51. The first coupling 53 is fixedly connected with the support frame 51, and the third motor 52 is axially connected with one end of the first flange assembly 54 through the first coupling 53. A mounting disk 55 is positioned above the support bracket 51 and is axially connected to the other end of the first flange assembly 54. The third motor 52 drives the mounting disc 55 to rotate transversely and circumferentially through the first coupling 53 and the first flange assembly 54.

The longitudinal turning structure 6 comprises a first fixed seat 61, a second rotary power assembly 62 and a second flange assembly 63. The first fixed seat 61 is fixedly connected with the mounting disc 55, and the second rotary power assembly 62 includes a fourth motor 621 and a second coupling 622. The second coupling 622 is fixedly connected with the second flange assembly 63, and the second flange assembly 63 is axially connected with the fourth motor 63 through the second coupling 622 and is clamped in the first fixing seat 61. The first fixing seat 61 is provided with an air inlet connector 611 and an air outlet connector 612.

The clamping structure 7 comprises a clamping mounting plate 71, a clamping jaw assembly 72, a cylinder assembly 73, a second fixed seat 74, an air disc assembly 75, a third flange 76, a cover plate 77 and a leveling assembly 78. The third flange 76 is clamped with the first fixed seat 61 and is axially connected with the second flange assembly 63. The fourth motor 63 drives the third flange 76 to rotate longitudinally and circumferentially through the second coupling 622 and the second flange assembly 63.

The air disk assembly 75 is wound on the third flange 76 and is embedded in the first fixing seat 61. The second fixed mount 74 is connected to a third flange 76. The leveling assembly 78 comprises four sets of leveling devices 781 which are symmetrically arranged, each set of leveling devices 781 comprises a leveling sheet 782 and two leveling screws 783, the leveling sheets 781 cover the third flange 76 and the second fixing seat 74 and are fixedly connected with the second fixing seat 74, and the leveling sheets 782 are mounted on the third flange 76 by the two leveling screws 783. The second fixing base 74 is manually leveled and corrected by adjusting four sets of leveling screws 783 which are symmetrical to each other.

The clamping mounting plate 71 is vertically connected with the second fixing seat 74, and the air cylinder assembly 73 and the clamping jaw assembly 72 are both fixedly mounted on the clamping mounting plate 71. The air disc assembly 75 includes an air inlet disc and an air outlet disc, one end of the air inlet disc is communicated with the air inlet connector 611, and the other end is communicated with the air cylinder 731, and is used for delivering air to the air cylinder 731. One end of the air outlet disc is communicated with the air outlet joint 612, and the other end of the air outlet disc is communicated with the air cylinder 731. The air disk assembly 75 is used to ensure that the air path to the air cylinder 731 is smooth when the longitudinal rotating structure rotates in a full circle.

The cylinder assembly 73 includes a cylinder 731, a push-pull member 732, a push-pull member fixing block 733, a first spring 734, and a second spring 735. The cylinder 731 is mounted on the clamp mounting plate 71, and the first spring 734 and the second spring 735 are respectively located on the left and right sides of the cylinder 731. One end of the first spring 734 and one end of the second spring 735 are respectively mounted on the second fixing seat 74, and the other ends of the first spring 734 and the second spring 735 are respectively fixedly connected to the push-pull member 732. In the edge correction process, the cylinder 731 is in a free state in which air is released, no force is applied to the push-pull member 732, and the first spring 734 and the second spring 735 apply oblique flexible forces to the push-pull member 732, thereby clamping the drill bit and completing the edge correction.

The push-pull member fixing block 733 is placed on the holding and mounting plate 71, the push-pull member 732 is fixedly mounted on the push-pull member fixing block 733, and the push-pull member fixing block 733 is fixedly connected to an output end of the air cylinder 731. After the cylinder 731 is started, the output end of the cylinder 731 extends out or retracts to push the pushing and pulling piece fixing block 733 to move on the clamping and mounting plate 71, and drive the pushing and pulling piece 732 to move.

The jaw assembly 72 includes a first jaw 721, a second jaw 722, a third slide 723, a fourth slide 724, a third slide 725, a fourth slide 726, a fifth slide 727 and a sixth slide 728. The third slide rail 723 and the fourth slide rail 724 are parallel to each other and are both fixedly mounted on the clamping mounting plate 71. The third slider 725 and the fourth slider 726 are fixedly connected to the first clamping jaw 721 and the second clamping jaw 722, respectively. The third slider 725 and the fourth slider 726 are slidably connected to the third slide rail 723. The fifth slider 727 and the sixth slider 728 are fixedly connected to the first clamping jaw 721 and the second clamping jaw 722, respectively. The fifth slider 727 and the sixth slider 728 are slidably connected to the fourth rail 724. The cover plate 77 is clamped above the cylinder assembly 73, the first clamping jaw 721 and the second clamping jaw 722, and is fixedly connected with the clamping mounting plate 71.

The push-pull member 732 is provided with a left clamping arm 7321, a middle push block 7322 and a right clamping arm 7323 in sequence from left to right. Push-pull member 732 is snap-fit connected to first jaw 721 and second jaw 722. The cylinder 731 controls the clamping or opening of the first jaw 721 and the second jaw 722 through the push-pull member 732. The acting force of the push-pull member 732 on the first clamping jaw 721 and the second clamping jaw 722 is an oblique push-pull force, which can amplify the push-pull force output by the cylinder 731 and save energy consumption. The middle pushing block 7322 is located between the first clamping jaw 721 and the second clamping jaw 722, and matches the shapes of the first clamping jaw 721 and the second clamping jaw 722. The first jaw 721 is located between the left clamp arm 7321 and the middle push block 7322, and the second jaw 722 is located between the right clamp arm 7233 and the middle push block 7322.

The first jaw 721 and the second jaw 722 are symmetrical to each other. The first jaws 721 are provided with a removable first cartridge 7211 and the second jaws 722 are provided with a removable second cartridge 7221 to facilitate cartridge replacement. The second chuck 7221 is provided with a rotatable clamping tongue piece 7222, the clamping tongue piece 7222 can rotate, in the process of clamping the drill bit, the clamping area of the clamping tongue piece and the drill bit is increased, the stress of the drill bit is balanced, and the effects of avoiding the head tilting of the drill bit and avoiding eccentricity are achieved.

The utility model discloses when using, through adjusting the adjusting screw 783 of four adjusting device 781 of group, carry out the leveling to clamping structure 7, guarantee that the three-dimensional coordinate of chuck position is accurate. The first linear motion structure 2 drives the clamping structure 7 to move to a material loading position, the transverse rotation structure 5 rotates to return to the original point, the second linear motion structure 4 drives the clamping structure 7 to move backwards to the original point, and the air cylinder 731 resets to drive the push-pull piece 732 to move, so that the first chuck 7211 and the second chuck 7221 are driven to be opened. The second linear motion structure 4 drives the clamping structure 7 to move forward to a designated loading position and stop, and the air cylinder 731 pushes the push-pull piece 732 to move, so that the first chuck 7211 and the second chuck 7221 are clamped, and clamping of the drill bit is completed. The second linear motion structure 4 drives the second platform 32 to move backwards for a set distance, and the first linear motion structure 2 drives the first platform 31 to move leftwards to an appointed position for edge correction, so that edge correction operation is performed. The second linear motion structure 4 drives the second platform 32 to move forward to insert the drill bit into the cutting edge correcting structure, at this time, the air cylinder 731 is in a free state when being deflated, no acting force is applied to the push-pull member 732, the first spring 734 and the second spring 735 apply oblique flexible acting force to the push-pull member 732, and the drill bit is clamped to finish cutting edge correction. The cylinder 731 is positioned to push the push-pull member 732 to move, thereby clamping the first collet 7211 and the second collet 7221, and thereby clamping the drill bit.

The second linear motion structure 4 drives the second platform 32 to move backwards for a set distance, the first linear motion structure 2 drives the first platform to move 71 to an appointed position for concentricity detection, the longitudinal rotation structure 6 drives the clamping structure 7 to longitudinally rotate for concentricity detection, automatic compensation is carried out according to a detection structure, after concentricity correction is completed, the second linear motion structure 4 drives the second platform 32 to move backwards, the transverse rotation structure 5 transversely rotates for a set angle, the longitudinal rotation structure 6 longitudinally rotates for a set angle, the first linear motion structure 2 drives the first platform 31 to move, the clamping structure 7 drives the drill to move to a grinding wheel machining position, and machining processing such as grinding and drilling of the drill and the like is started.

The above description is only some embodiments of the present invention, and for those skilled in the art, without departing from the inventive concept, a plurality of modifications and improvements can be made, and all of them belong to the protection scope of the present invention.

Claims

1. The automatic clamping mechanism of the automatic drill grinding nozzle machine is characterized by comprising a base, a first linear motion structure, a displacement platform, a second linear motion structure, a transverse rotation structure, a longitudinal rotation structure and a clamping structure, wherein the first linear motion structure is fixedly installed on the base, the displacement platform comprises a first platform and a second platform which are connected in a sliding mode, the first platform is located on the first linear motion structure and slides leftwards and rightwards along the first linear motion structure, the second linear motion structure is fixedly connected with the first platform and drives the second platform to slide forwards and backwards along the first platform, the transverse rotation structure is installed on the second platform, the longitudinal rotation structure is installed on the transverse rotation structure, and the clamping structure is connected with the longitudinal rotation structure in a full-circle rotating mode.

2. The automatic clamping mechanism of the automatic grinding and drilling nozzle machine as claimed in claim 1, wherein the first linear motion structure comprises a first linear motion module, two first slide rails and two first slide rails, the first linear motion module is fixedly mounted on the base, the two first slide rails are mounted on two sides of the first linear motion module, the two first slide rails are two sets of first slide blocks, the two sets of first slide blocks are respectively connected with the two first slide rails in a sliding manner, the first linear motion module is provided with a first ball screw sleeve, and the first platform is fixedly connected with the first ball screw sleeve and the two sets of first slide blocks.

3. The automatic clamping mechanism of the automatic grinding and drilling nozzle machine as claimed in claim 1, wherein the displacement platform further comprises a second slide rail and a second slide block, the second slide rail is mounted on the first platform, the second linear motion structure is provided with a second motor, a second screw rod and a second ball screw sleeve, the second motor is fixedly connected with the first platform, the second ball screw sleeve moves back and forth along the second screw rod, the second platform is fixedly connected with the second ball screw sleeve, the second platform is located above the first platform, and the second slide block is mounted at the bottom of the second platform and is slidably connected with the second slide rail.

4. The automatic clamping mechanism of the automatic drill grinding machine according to claim 1, wherein the transverse rotating structure comprises a support frame, a third motor, a first coupler, a first flange component and an installation disc, the support frame is fixedly installed on the second platform, the first flange component is embedded on the support frame, the third motor and the first coupler are located below the support frame, the first coupler is fixedly connected with the support frame, the third motor is axially connected with one end of the first flange component through the first coupler, the installation disc is located above the support frame and axially connected with the other end of the first flange component, and the third motor drives the installation disc to rotate transversely and circumferentially through the first coupler and the first flange component.

5. The automatic clamping mechanism of the automatic grinding and drilling nozzle machine as claimed in claim 4, wherein the longitudinal rotating structure comprises a first fixing seat, a second rotating power assembly and a second flange assembly, the first fixing seat is fixedly connected with the mounting disc, the second rotating power assembly comprises a fourth motor and a second coupler, the second coupler is fixedly connected with the first fixing seat, the second flange assembly is axially connected with the fourth motor through the second coupler and clamped in the first fixing seat, and an air inlet joint and an air outlet joint are arranged on the first fixing seat.

6. The automatic clamping mechanism of the automatic grinding and drilling nozzle machine of claim 5, wherein the clamping structure comprises a clamping mounting plate, a cover plate, a clamping jaw assembly, a cylinder assembly, a second fixing seat, an air disc assembly, a leveling assembly and a third flange, the third flange is clamped with the first fixing seat and is axially connected with the second flange assembly, the fourth motor drives the third flange to rotate longitudinally and circumferentially through the second coupler and the second flange assembly, the air disc assembly is wound on the third flange and is arranged in the first fixing seat, the air disc assembly comprises an air inlet disc and an air outlet disc, the second fixing seat is connected with the third flange, the leveling assembly comprises a plurality of groups of leveling devices which are symmetrically arranged, the leveling devices are all mounted on the second fixing seat and the third flange, the clamping mounting plate is vertically connected with the second fixing seat, the cylinder assembly and the clamping jaw assembly are all fixedly mounted on the clamping mounting plate, and the cylinder assembly, the cover plate assembly are clamped above the clamping jaw assembly and are connected with the clamping mounting plate.

7. The automatic clamping mechanism of the automatic grinding and drilling nozzle machine as claimed in claim 6, wherein the cylinder assembly comprises a cylinder, a first spring, a second spring, a push-pull member and a push-pull member fixing block, the cylinder is mounted on the clamping mounting plate, the push-pull member fixing block is placed on the clamping mounting plate, the push-pull member is fixedly mounted on the push-pull member fixing block, the push-pull member fixing block is fixedly connected with the output end of the cylinder, one end of the first spring and one end of the second spring are respectively mounted on the second fixing base, the other end of the first spring and the other end of the second spring are respectively fixedly connected with the push-pull member, the first spring and the second spring are respectively located at the left side and the right side of the cylinder, one end of the air inlet plate is communicated with the air inlet joint, the other end of the air outlet plate is communicated with the air outlet joint, and the other end of the air outlet plate is communicated with the cylinder.

8. The automatic clamping mechanism of the automatic grinding and drilling nozzle machine of claim 7, wherein the clamping jaw assembly comprises a first clamping jaw, a second clamping jaw, a third sliding rail, a fourth sliding rail, a third sliding block, a fourth sliding block, a fifth sliding block and a sixth sliding block, the third sliding rail and the fourth sliding rail are parallel to each other and are fixedly mounted on the clamping mounting plate, the third sliding block and the fourth sliding block are fixedly connected with the first clamping jaw and the second clamping jaw respectively, the third sliding block and the fourth sliding block are slidably connected with the third sliding rail, the fifth sliding block and the sixth sliding block are fixedly connected with the first clamping jaw and the second clamping jaw respectively, the fifth sliding block and the sixth sliding block are slidably connected with the fourth sliding rail, and the pushing and pulling piece is connected with the first clamping jaw and the second clamping jaw in a clamping manner.

9. The automatic clamping mechanism of the automatic drill grinding machine according to claim 8, wherein the pushing and pulling member is provided with a left clamping arm, a middle pushing block and a right clamping arm from left to right in sequence, the middle pushing block is located between the first clamping jaw and the second clamping jaw and is matched with the shapes of the first clamping jaw and the second clamping jaw, the first clamping jaw is located between the left clamping arm and the middle pushing block, and the second clamping jaw is located between the right clamping arm and the middle pushing block.

10. The automatic clamping mechanism of an automatic drill grinding and milling machine as claimed in claim 8, wherein the first clamping jaw and the second clamping jaw are symmetrical left and right, the first clamping jaw is provided with a detachable first chuck, the second clamping jaw is provided with a detachable second chuck, and the second chuck is provided with a rotatable clamping tongue piece.