A matching structure of pneumatic chuck and chuck jaws

Abstract

The present application relates to a matching structure of a pneumatic chuck and a chuck jaw, belonging to the technical field of workpiece clamping, which includes a connecting seat and an air intake component, a driving component and a jaw assembly arranged on the connecting seat, the air intake end of the air intake component is connected to an external air source, the air intake component is connected to the driving component, the jaw assembly includes a clamping component connected to the driving component, and the driving component uses air pressure to drive the clamping end of the jaw component to clamp the workpiece. The present application has the effect of being able to use a pneumatic driving component to drive the jaw to clamp the workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece clamping, and in particular to a matching structure of a pneumatic chuck and a chuck jaw. Background Art

[0002] In industrial fields such as mechanical processing and pipe cutting, chucks are used as an important fixture and are widely used in various machine tools and automation equipment.

[0003] With the continuous development of pneumatic technology, pneumatic chucks have gradually attracted attention due to their advantages such as fast response speed, low cost and easy maintenance. Pneumatic chucks that use pneumatic drive components to drive the clamping jaws to clamp the workpiece have also appeared on the market.

[0004] The present application provides another technical solution that can realize the use of pneumatic drive components to drive the clamping jaws to achieve the clamping of the workpiece, aiming to provide technical personnel in the field with a variety of solution options for solving the problem. Utility Model Content

[0005] In order to utilize a pneumatic driving component to drive the clamping jaws to clamp a workpiece, the present application provides a matching structure of a pneumatic chuck and a chuck clamping jaw.

[0006] The application provides a pneumatic chuck and chuck jaw matching structure using the following technical solutions:

[0007] A matching structure of a pneumatic chuck and a chuck jaw comprises a connecting seat and an air intake component, a driving component and a jaw assembly arranged on the connecting seat, wherein the air intake end of the air intake component is connected to an external air source, the air intake component is connected to the driving component, and the jaw assembly comprises a clamping component connected to the driving component, and the driving component utilizes air pressure to drive the clamping end of the jaw component to clamp a workpiece.

[0008] By adopting the above technical solution, the air intake component of the external air source drives the driving component to move, and the moving driving component drives the clamping end of the clamping component so that the clamping end of the clamping component clamps the workpiece. The entire process can be realized by utilizing the pneumatic driving component to drive the clamping claws to achieve clamping of the workpiece.

[0009] Preferably, the driving component includes an intermediate bearing inner cover connected to the air intake component and a sliding component arranged in the intermediate bearing inner cover, the intermediate bearing inner cover is provided with a first sleeve for passing the workpiece to be clamped, the intermediate bearing inner cover is detachably connected to an outer cover, the end of the outer cover away from the connecting seat is detachably connected to a second flange, the end surface of the second flange close to the outer cover is hinged with a connecting rod connected to the sliding component, the second flange is provided with a long strip hole for the connecting rod to extend, and the end of the connecting rod away from the sliding component is connected to the clamping component.

[0010] Preferably, a sliding groove corresponding to and connected to the position of the long hole is formed on the end surface of the second flange away from the outer cover, and the clamping component includes an adjustment block slidably connected to the sliding groove and a clamping claw body detachably connected to the side of the adjustment block away from the second flange, and a connecting groove corresponding to the position of the connecting rod is formed on the side of the adjustment block close to the outer cover, and the end of the connecting rod away from the sliding member extends into the connecting groove.

[0011] Preferably, an extension block is integrally formed on a side of the adjustment block away from the connecting rod, an insertion block is fixedly connected to a side of the clamping jaw body close to the adjustment block, a slot for plugging with the insertion block is provided on a side of the extension block close to the clamping jaw body, a fixing block is integrally formed on a side of the extension block close to the clamping jaw body and located on the end of the slot, and the fixing block is detachably connected to the clamping jaw body.

[0012] Preferably, the driving component also includes a limiting component, which includes two pressure plates detachably connected to the side of the second flange away from the outer cover, an adjustment plate detachably connected to the pressure plate, and an adjustment member arranged on the adjustment plate for limiting the clamping claw body, the extension block is located between the two pressure plates, and a side of the pressure plate close to the adjustment block abuts against a side of the adjustment block close to the extension block.

[0013] Preferably, the end of one side of the extension block with a slot is fixedly connected to two first blocks, a dust baffle is fixedly connected between the two pressure plates, and the dust baffle is bent on one side close to the clamping claw body to have two second blocks, and the limiting position of the second block corresponds to the first block.

[0014] Preferably, a bending baffle is detachably connected between the adjustment plate and the pressure plate via bolts, and a bending portion of the bending baffle blocks the port of the slide slot so that the adjustment block cannot fall off from the slide slot.

[0015] Preferably, the clamping jaw assemblies are provided in four groups, and the four groups of the clamping jaw assemblies are arranged on the second flange at equal intervals.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] 1. The air intake component of the external air source drives the driving component to move, and the moving driving component drives the clamping end of the clamping component so that the clamping end of the clamping component clamps the workpiece. The whole process can be realized by utilizing the pneumatic driving component to drive the clamping claw to clamp the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of this application.

[0019] Figure 2 It is an exploded view of the power assembly of the present application.

[0020] Figure 3 It is an exploded view of the air intake component of the present application.

[0021] Figure 4 It is a cutaway view of the intake bearing cover of the present application.

[0022] Figure 5 It is an overall cross-sectional view of this application.

[0023] Figure 6 yes Figure 5 A partial enlarged schematic diagram of part A.

[0024] Figure 7 It is an exploded view of the intake component and the drive component of the present application.

[0025] Figure 8 It is an exploded view of the second gear, intake flange and slip ring body of the present application.

[0026] Fig. 9 It is a structural schematic diagram of the first flange, the intermediate bearing inner cover, the outer cover and the second flange of the present application.

[0027] Fig.10 yes Fig. 9 sectional view of .

[0028] Fig.11 yes Fig. 9 A cross-sectional view from another perspective.

[0029] Fig.12 It is an exploded view of the second flange and the outer cover of the present application.

[0030] Fig.13 It is an exploded view of the clamping jaw assembly and the second flange of the present application.

[0031] Fig.14 is an exploded view of the clamping jaw assembly of the present application.

[0032] Description of reference numerals: 1, connecting shell; 11, base; 2, power member; 21, first cover shell; 211, connecting flange; 212, connecting block; 213, rotating flange; 22, first mounting shell; 221, adjusting plate; 222, adjusting member; 23, mounting flange; 24, connecting plate; 241, through port; 242, waist-shaped hole; 25, first gear; 26, second gear; 261, positioning ring; 262, positioning groove; 263, connecting ring; 2631, first sealing ring ; 264, mounting groove; 3, air inlet flange; 31, sliding ring body; 311, convex ring; 3111, first air inlet hole; 3112, second air inlet hole; 312, first bearing; 313, second bearing; 314, mounting ring; 32, air inlet bearing cover; 321, limiting ring; 322, first annular groove; 323, first O-ring; 324, first air inlet; 325, second air inlet; 326, annular air inlet groove; 33, air inlet ring; 331, limiting groove; 4, middle Bearing inner cover; 41, first flange; 411, sleeve ring; 412, first sleeve; 42, third bearing; 43, outer cover; 431, second flange; 432, long hole; 433, hinged ear; 434, slide groove; 44, first movable sleeve; 441, first movable flange; 442, first clearance opening; 45, second movable sleeve; 451, second movable flange; 452, first air cavity; 453, second air cavity; 454, third air cavity; 455, fourth air cavity ; 457, second sealing ring; 458, long hole; 459, second make way; 46, air intake clamping channel; 47, air intake release channel; 49, retaining ring; 5, connecting rod; 51, adjustment block; 511, connecting groove; 512, extension block; 5121, first block; 513, slot; 52, clamping claw body; 521, insert block; 522, fixing block; 6, pressure plate; 61, adjustment plate; 62, adjustment member; 63, dust baffle; 631, second block; 64, bending baffle. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-14 This application is described in further detail.

[0034] The embodiment of the present application discloses a matching structure of a pneumatic chuck and a chuck jaw. Figure 1 and Figure 2 The matching structure of the pneumatic chuck and the chuck jaws includes a connecting seat for installation, and an air slip ring assembly and a jaw assembly arranged on the connecting seat. A power assembly is also arranged in the connecting seat. The power assembly is connected to the air slip ring assembly so that the air slip ring assembly can rotate relative to the connecting seat. The air inlet end of the air slip ring assembly is connected to an external air source. The air slip ring assembly is connected to the jaw assembly. The air slip ring assembly uses air pressure to drive the clamping end of the jaw assembly to clamp the workpiece.

[0035] Reference Figure 1 and Figure 2 The connecting seat includes a connecting shell 1 and a base 11 fixedly connected to the bottom of the peripheral side of the connecting shell 1; the connecting shell 1 is a hollow shell with two ends opened, and the power assembly includes a cover body detachably connected to one end of the connecting shell 1, a power member 2 arranged at an end of the cover body away from the connecting shell 1, and a transmission component arranged in the cover body and connected to the output end of the power member 2; the transmission end of the transmission component is connected to the air slip ring assembly so that the air slip ring assembly rotates in the connecting seat.

[0036] Reference Figure 1 and Figure 2 The cover body includes a first cover shell 21 detachably connected to one end of the connecting shell 1 by bolts and a first mounting shell 22 integrally formed on the top of the first cover shell 21; the power member 2 is arranged at the end of the first mounting shell 22 away from the connecting shell 1. The first cover shell 21 and the first mounting shell 22 are both hollow shells with one end open, the opening of the first cover shell 21 faces the connecting shell 1, and the opening of the first mounting shell 22 faces away from the connecting shell 1. A mounting flange 23 is fixedly sleeved on the fuselage side of the power member 2, and a connecting plate 24 is detachably connected to the end of the mounting flange 23 close to the first mounting shell 22 by bolts, and the connecting plate 24 is detachably connected to the opening of the first mounting shell 22. A through hole 241 for the power member 2 to pass through is opened at the axis of the connecting plate 24, and the output end of the power member 2 extends into the first mounting shell 22 through the through hole 241 and the opening of the first mounting shell 22 in sequence, and the output end of the power member 2 is connected to the transmission component.

[0037] Reference Figure 1 and Figure 2 In order to adjust the position of the connecting plate 24 and the position of the power part 2, a horizontally arranged adjusting plate 221 is detachably connected to the top surface of the first mounting shell 22 through bolts, and an adjusting member 222 vertically penetrating the adjusting plate 221 is threadedly connected to the top surface of the adjusting plate 221, and the bottom end of the adjusting member 222 abuts against the top surface of the connecting plate 24. Waist-shaped holes 242 are provided at the four corners of the connecting plate 24, and a fastener threadedly connected to the first mounting shell 22 is inserted in each waist-shaped hole 242; the connecting plate 24 is detachably connected to the opening of the first mounting shell 22 through the fasteners.

[0038] When the position of the connecting plate 24 needs to be adjusted, loosen the fasteners and rotate the adjusting member 222 to adjust the adjusting member 222 to a suitable position, then move the connecting plate 24 up or down, and fix the connecting plate 24 on the first mounting shell 22 by tightening the fasteners, thereby completing the adjustment of the position of the connecting plate 24.

[0039] Reference Figure 2The transmission component includes a first gear 25 detachably connected to the output end of the power member 2 by bolts and located in the first mounting shell 22, and a second gear 26 located in the first cover shell 21 and meshing with the first gear 25; the first cover shell 21 is connected to the first mounting shell 22, and the first gear 25 and the second gear 26 are meshed at the connection point, and the second gear 26 is connected to the gas slip ring assembly. In one embodiment, the power member 2 is a reducer, and the fastener and the adjusting member 222 are both bolts.

[0040] Reference Figure 3 and Figure 4 The air slip ring assembly includes an air intake component and a driving component connected to the air intake component; the air intake component includes a slip ring body 31, an air intake bearing cover 32 rotatably connected to the circumference of the slip ring body 31, and an air intake flange 3 detachably connected to the end of the slip ring body 31 close to the connection shell 1; a convex ring 311 is integrally formed on the circumference of the slip ring body 31, and a first bearing 312 and a second bearing 313 are respectively sleeved on the circumference of the slip ring body 31 and at both ends of the convex ring 311, and the second bearing 313 is located at the end of the convex ring 311 close to the connection shell 1. The inner ring side of the first bearing 312 and the inner ring side of the second bearing 313 are both fixedly sleeved on the circumference of the slip ring body 31, and the outer ring side of the first bearing 312 and the outer ring side of the second bearing 313 are both fixedly connected to the inner ring side of the air intake bearing cover 32. The slip ring body 31 is connected to the second gear 26 via the intake flange 3 , so that when the second gear 26 rotates, the slip ring body 31 can rotate relative to the intake bearing cover 32 under the connection between the first bearing 312 and the second bearing 313 .

[0041] Reference Figure 5 and Figure 6 A pressure cover connected to the air intake component is arranged at one end of the first cover shell 21 away from the connecting shell 1, and the pressure cover includes a connecting flange 211 and two connecting blocks 212 symmetrically fixed on the circumferential side of the connecting flange 211. The end of the connecting block 212 away from the connecting flange 211 is detachably connected to the end of the first cover shell 21 away from the connecting shell 1 by bolts, and a rotating flange 213 is rotatably connected to the inner ring side of the pressure cover flange; the connecting flange 211 is connected to the air intake bearing cover 32, and the rotating flange 213 is connected to the slip ring body 31.

[0042] Reference Figure 3 and Figure 6 The intake bearing cover 32 is a hollow shell with openings at both ends. The end of the intake bearing cover 32 away from the connecting shell 1 passes through the first cover shell 21 and extends outside the first cover shell 21, and the end of the intake bearing cover 32 away from the connecting shell 1 is detachably connected to the connecting flange 211 by bolts; the end of the slip ring body 31 away from the connecting shell 1 is detachably connected to the end of the rotating flange 213 close to the first cover shell 21 by bolts.

[0043] Reference Figure 3 and Figure 4 , a limiting ring 321 is integrally formed on the inner side wall of the intake bearing cover 32 and located between the first bearing 312 and the second bearing 313, and a plurality of first annular grooves 322 are provided on the inner side of the limiting ring 321, and the plurality of first annular grooves 322 are evenly spaced along the axial direction of the limiting ring 321, and a first O-ring 323 for sealing is provided in each first annular groove 322; the inner side of the first O-ring 323 abuts against the outer peripheral side of the convex ring 311. In this embodiment, the number of the first annular grooves 322 is three. An annular intake groove 326 is provided on the inner side wall of the intake bearing cover 32 and located between adjacent first annular grooves 322, and a first air inlet 324 and a second air inlet 325 are provided on the peripheral side of the intake bearing cover 32; the first air inlet 324 and the second air inlet 325 correspond to and are connected with the two annular intake grooves 326 respectively. The first air inlet 324 and the second air inlet 325 are both connected to an external air source. When air is taken in by the first air inlet 324, the first air inlet 324 controls the clamping end of the clamping jaw assembly to clamp through a driving component. When air is taken in by the second air inlet 325, the second air inlet 325 controls the clamping end of the clamping jaw assembly to release through a driving component.

[0044] When the air intake bearing cover 32 is mounted on the connecting flange 211 , the first air intake port 324 and the second air intake port 325 are both located between the gland flange and the first cover shell 21 , so that the first air intake port 324 and the second air intake port 325 are connected to an external air source.

[0045] Reference Figure 7 and Figure 8 A mounting ring 314 is integrally formed on the circumferential side of one end of the slip ring body 31 close to the connecting shell 1, and a radially extending intake ring 33 is integrally formed on the inner ring side of the intake flange 3, and the end face of the intake flange 3 away from the slip ring body 31 is flush with the end face of the intake ring 33 away from the slip ring body 31; a limiting groove 331 is formed between the end face of the intake flange 3 close to the slip ring body 31 and the end face of the intake ring 33 close to the slip ring body 31, and the mounting ring 314 is inserted into the limiting groove 331.

[0046] A radially extending positioning ring 261 is integrally formed on the inner ring side of the second gear 26; the positioning ring 261 is located between the two end faces of the second gear 26, so that two positioning grooves 262 are formed between the second gear 26 and the positioning ring 261, one of the positioning grooves 262 is located on the end face of the second gear 26 close to the intake flange 3, and the other positioning groove 262 is located on the end face of the second gear 26 away from the intake flange 3; the positioning groove 262 located on the end face of the second gear 26 close to the intake flange 3 is plugged into and matched with the intake flange 3.

[0047] A radially extending connecting ring 263 is integrally formed on the inner ring side of the positioning ring 261, and the end face of the positioning ring 261 away from the air inlet flange 3 is flush with the end face of the connecting ring 263 away from the air inlet flange 3, and a mounting groove 264 is formed between the end face of the positioning ring 261 close to the air inlet flange 3 and the end face of the connecting ring 263 close to the air inlet flange 3. A first flange 41 is provided at one end of the driving component close to the second gear 26, and a collar 411 is integrally formed at one end of the first flange 41 close to the second gear 26, and the collar 411 is coaxially arranged with the first flange 41.

[0048] Specifically, the positioning groove 262 located on the end face of the second gear 26 close to the intake flange 3 is plugged into the intake flange 3, the mounting ring 314 is plugged into the limiting groove 331, and the connecting bolts are sequentially passed through the connecting ring 263, the intake ring 33 and the mounting ring 314, and one end of the connecting bolt is threadedly connected to the mounting ring 314, so that the slip ring body 31 is installed on the second gear 26; and then the rotating second gear 26 can drive the slip ring body 31 to rotate. Next, the positioning groove 262 located on one end of the second gear 26 close to the first flange 41 is plugged into the collar 411, the second gear 26 is installed on the first flange 41 by bolts, and the mounting bolts are sequentially passed through the intake flange 3, the positioning ring 261 and the collar 411, and the mounting bolts are threadedly connected to the collar 411, so that the second gear 26 is installed on the first flange 41. At the same time, in order to prevent the heads of the connecting bolts from hindering the second gear 26 from being installed on the first flange 41 , a countersunk hole for accommodating the heads of the connecting bolts is provided on the end surface of the connecting ring 263 close to the first flange 41 .

[0049] Reference Figure 7 and Fig. 9 The driving component includes an intermediate bearing inner cover 4 which is coaxially arranged with the connecting shell 1 and rotatably connected in the connecting shell 1, and a sliding member arranged in the intermediate bearing inner cover 4; a third bearing 42 is arranged on the circumferential side of the intermediate bearing inner cover 4 and at both ends of the intermediate bearing inner cover 4, the outer ring side of the third bearing 42 is fixedly connected to the inner side wall of the connecting shell 1, and the inner ring side of the third bearing 42 is fixedly connected to the circumferential side of the intermediate bearing inner cover 4, so that the intermediate bearing inner cover 4 can rotate relative to the connecting shell 1.

[0050] Reference Fig.10 and Fig.11 The flange opening of the first flange 41 is fixedly connected with a first sleeve 412 which is coaxial with the first flange 41. The first sleeve 412 is located in the middle bearing inner cover 4. The first sleeve 412 is used to pass through the workpiece to be clamped. The end of the middle bearing inner cover 4 away from the first flange 41 is detachably connected with an outer cover 43. The clamping claw assembly is arranged at the end of the outer cover 43 away from the middle bearing inner cover 4. The sliding member is arranged between the first sleeve 412 and the middle bearing inner cover 4.

[0051] The sliding member includes a first movable sleeve 44 movably sleeved on the circumference of the first sleeve 412 and a second movable sleeve 45 fixedly sleeved on the circumference of the first movable sleeve 44; the first movable sleeve 44 and the second movable sleeve 45 are both located between the intermediate bearing inner cover 4 and the first sleeve 412, and the circumference of the second movable sleeve 45 abuts against the inner ring side of the outer cover 43. The end of the first movable sleeve 44 close to the first flange 41 is detachably connected to the first movable flange 441 by bolts, and the flange opening of the first movable flange 441 is slidably connected to the circumference of the first sleeve 412; the end of the second movable sleeve 45 close to the first flange 41 is detachably connected to the second movable flange 451 by bolts, and the flange opening of the second movable flange 451 is located on the circumference of the first movable sleeve 44. A retaining ring 49 is fixedly connected to the inner ring side of the intermediate bearing inner cover 4, and the retaining ring 49 is located between the first movable flange 441 and the second movable flange 451, and the peripheral side of the first movable sleeve 44 is slidingly connected to the inner ring side of the retaining ring 49; the first movable sleeve 44 and the second movable sleeve 45 are both connected to the clamping jaw assembly.

[0052] A first air cavity 452 is formed between the intermediate bearing inner cover 4 and the first sleeve 412 and between the first flange 41 and the first movable flange 441. A second air cavity 453 is formed between the intermediate bearing inner cover 4 and the first sleeve 412 and between the first movable flange 441 and the retaining ring 49. A third air cavity 454 is formed between the intermediate bearing inner cover 4 and the first sleeve 412 and between the retaining ring 49 and the second movable flange 451. 412 and between the second movable flange 451 and the outer cover 43 to form a fourth air cavity 455; the first air inlet 324 is used to ventilate the second air cavity 453 and the fourth air cavity 455. When the second air cavity 453 and the fourth air cavity 455 are ventilated, the clamping end of the clamping jaw assembly is clamped; the second air inlet 325 is used to ventilate the first air cavity 452 and the third air cavity 454. When the first air cavity 452 and the third air cavity 454 are ventilated, the clamping end of the clamping jaw assembly is released.

[0053] The interior of the intermediate bearing inner cover 4 is provided with two air intake clamping channels 46 respectively connected with the second air cavity 453 and the fourth air cavity 455, and the two air intake clamping channels 46 are symmetrically arranged up and down; the first air inlet 324 is used to ventilate the air intake clamping channel 46. The interior of the intermediate bearing inner cover 4 is provided with two air intake release channels 47 respectively connected with the first air cavity 452 and the third air cavity 454, and the two air intake release channels 47 are symmetrically arranged left and right, and the second air inlet 325 is used to ventilate the air intake release channel 47.

[0054] Reference Figure 4 and Figure 7, a plurality of first air inlet holes 3111 and second air inlet holes 3112 are provided on the circumference of the convex ring 311. Two first air inlet holes 3111 are provided on the same circumference of the convex ring 311. The two first air inlet holes 3111 located on the same circumference of the convex ring 311 are both connected to the annular air inlet groove 326 at the corresponding position; the gas enters the two first air inlet holes 3111 through the 33-shaped groove of the air inlet ring connected to the first air inlet port 324. The two first air inlet holes 3111 correspond to and are connected to the two air inlet clamping channels 46 respectively. Two second air inlet holes 3112 are provided on the same circumference of the convex ring 311. The two second air inlet holes 3112 located on the same circumference of the convex ring 311 are both connected to the annular air inlet groove 326 at the corresponding position; the gas enters the two second air inlet holes 3112 through the 33-shaped groove of the air inlet ring connected to the second air inlet port 325. The two second air inlet holes 3112 correspond to and are connected to the two air inlet release channels 47 respectively.

[0055] Reference Figure 7 and Fig.10 The top of the end surface of the slip ring body 31, the top of the end surface of the mounting ring 314, the top of the end surface of the air intake ring 33, the top of the end surface of the connecting ring 263, the top of the end surface of the sleeve ring 411 and the top of the end surface of the first flange 41 are all provided with upper air intake passages that are interconnected, and the air intake clamping passage 46 that is connected to the fourth air cavity 455 is connected to the upper air intake passage.

[0056] Reference Figure 7 and Fig.10 The bottom of the end surface of the slip ring body 31, the bottom of the end surface of the mounting ring 314, the bottom of the end surface of the air intake ring 33, the bottom of the end surface of the connecting ring 263, the bottom of the end surface of the sleeve ring 411 and the bottom of the end surface of the first flange 41 are all provided with lower air intake passages that are interconnected, and the air intake clamping passage 46 that is connected to the second air cavity 453 is connected to the lower air intake passage.

[0057] Reference Figure 7 and Fig.11 The left side of the end face of the slip ring body 31, the left side of the end face of the mounting ring 314, the left side of the end face of the intake ring 33, the left side of the end face of the connecting ring 263, the left side of the end face of the sleeve ring 411 and the left side of the end face of the first flange 41 are all provided with left intake passages that are interconnected, and the intake release passage 47 connected to the third air cavity 454 is connected to the left intake passage.

[0058] Reference Figure 7 and Fig.11 The right side of the end face of the slip ring body 31, the right side of the end face of the mounting ring 314, the right side of the end face of the intake ring 33, the right side of the end face of the connecting ring 263, the right side of the end face of the sleeve ring 411 and the right side of the end face of the first flange 41 are all provided with right intake passages that are interconnected, and the intake release passage 47 connected to the first air cavity 452 is connected to the right intake passage.

[0059] Reference Figure 7 and Fig.10 In order to ensure the sealing performance and make the pneumatic work work normally, the first sealing ring 2631 is provided at the air inlet passage of the mounting ring 314, the air inlet ring 33, the connecting ring 263 and the sleeve ring 411. The second sealing ring 457 is provided at the connection between the outer cover 43 and the second movable sleeve 45, the connection between the outer cover 43 and the intermediate bearing inner cover 4, the connection between the first movable sleeve 44 and the second movable sleeve 45, the connection between the second movable sleeve 45 and the second movable flange 451, the connection between the second movable flange 451 and the intermediate bearing inner cover 4, the connection between the retaining ring 49 and the intermediate bearing inner cover 4, the connection between the retaining ring 49 and the first movable sleeve 44, the connection between the first movable sleeve 44 and the first sleeve 412, the connection between the first movable sleeve 44 and the first movable flange 441, the connection between the first flange 41 and the intermediate bearing inner cover 4, and the connection between the first flange 41 and the first sleeve 412.

[0060] Refer to the figure Fig.11 and 12 The end of the outer cover 43 away from the connecting shell 1 is detachably connected to the second flange 431 through bolts, and the end surface of the second flange 431 close to the outer cover 43 is hinged with four equally spaced connecting rods 5; specifically, four elongated holes 432 corresponding to the positions of the four connecting rods 5 are opened on the end surface of the second flange 431, and hinge ears 433 are fixedly connected to the end surface of the second flange 431 close to the outer cover 43 and located on both sides of each elongated hole 432, each elongated hole 432 is located between two corresponding hinged ears 433, and the bending part of the connecting rod 5 is hinged between two corresponding hinged ears 433; one end of the connecting rod 5 close to the second flange 431 passes through the elongated hole 432 and extends to the outside of the second flange 431. There are four groups of clamping jaw assemblies, and the four groups of clamping jaw assemblies correspond to the positions of the four connecting rods 5 respectively. One end of the connecting rod 5 extending outside the second flange 431 is connected to the clamping jaw assembly corresponding to the position, and one end of the connecting rod 5 away from the clamping jaw assembly is connected to the sliding member.

[0061] Reference Fig.10 and Fig.11, two first clearance openings 442 are symmetrically arranged in the circumference of the first movable sleeve 44 and at the end of the first movable sleeve 44 away from the first movable flange 441, and two long holes 458 are symmetrically arranged in the circumference of the second movable sleeve 45 and at the end of the second movable sleeve 45 away from the second movable flange 451. The two connecting rods 5 at the top and bottom of the second flange 431 pass through the long holes 458 and extend into the first clearance openings 442. Two second clearance openings 459 are symmetrically arranged in the circumference of the second movable sleeve 45 and at the end of the second movable sleeve 45 away from the second movable flange 451. The two connecting rods 5 at the left and right sides of the second flange 431 extend into the second clearance openings 459, thereby realizing the connection between the connecting rod 5 and the sliding member.

[0062] Reference Fig.13 and Fig.14 The end surface of the second flange 431 away from the outer cover 43 is provided with four slide grooves 434 which correspond to and are connected with the four long holes 432 respectively. Each group of clamping jaw assemblies includes a limiting component arranged on the end of the second flange 431 away from the outer cover 43 and a clamping component slidably connected to the slide groove 434; the clamping component is connected to the connecting rod 5 at the corresponding position, so that the clamping component is driven by the connecting rod 5 to slide along the track of the slide groove 434 to achieve the effect of clamping or releasing the workpiece to be cut.

[0063] The clamping component includes an adjustment block 51 slidably connected to the slide groove 434 and a clamping claw body 52 detachably connected to the side of the adjustment block 51 away from the second flange 431. A connecting groove 511 corresponding to the position of the connecting rod 5 is provided on the side of the adjustment block 51 close to the outer cover 43, and the end of the connecting rod 5 away from the sliding member extends into the connecting groove 511.

[0064] When the adjustment block 51 is placed in the slide slot 434, the side of the adjustment block 51 away from the outer cover 43 is flush with the notch of the slide slot 434; the side of the adjustment block 51 away from the connecting rod 5 is integrally formed with an extension block 512, and the side of the clamping jaw body 52 close to the adjustment block 51 is fixedly connected with an insertion block 521, and the side of the extension block 512 close to the clamping jaw body 52 is provided with a slot 513 corresponding to the position of the insertion block 521, and the insertion block 521 and the slot 513 are plugged and matched to realize the preliminary positioning of the clamping jaw body 52 on the adjustment block 51. A fixed block 522 is integrally formed on the side of the extension block 512 close to the clamping jaw body 52 and located at the end of the slot 513, and the fixed block 522 is detachably connected to the clamping jaw body 52 by bolts.

[0065] Reference Fig.13 and Fig.14The limiting component includes two pressing plates 6 detachably connected to the second flange 431 on the side away from the outer cover 43 by bolts, an adjustment plate 61 detachably connected to the pressing plate 6, and an adjustment member 62 arranged on the adjustment plate 61; the adjustment member 62 limits the moving stroke of the clamping claw body 52. ​​The extension block 512 is located between the two pressing plates 6, and the side of the pressing plate 6 close to the adjustment block 51 abuts against the side of the adjustment block 51 close to the extension block 512. The end of one side of the extension block 512 with a slot 513 is fixedly connected to two first blocks 5121, and the fixed block 522 is located between the two first blocks 5121; a dust baffle 63 is fixedly connected between the two pressing plates 6, and the dust baffle 63 corresponds to the fixed block 522. The side of the dust baffle 63 close to the clamping claw body 52 is bent with two second blocks 631, and the limiting position of the second block 631 corresponds to the first block 5121.

[0066] The adjusting piece 62 is threadedly connected to the adjusting plate 61. The cross-section of the adjusting plate 61 is U-shaped and its opening faces the clamping jaw body 52. ​​The adjusting plate 61 is detachably connected to the pressure plate 6 by bolts. In the loosened state, the clamping jaw body 52 extends along the opening of the adjusting plate 61 to between the two sides of the adjusting plate 61, and the end of the adjusting piece 62 extending to between the two sides of the adjusting plate 61 abuts against the clamping jaw body 52.

[0067] A bending baffle 64 is detachably connected between the adjustment plate 61 and the pressure plate 6 via bolts, and the bending portion of the bending baffle 64 blocks the end of the slide slot 434 so that the adjustment block 51 cannot fall off from the slide slot 434 .

[0068] The implementation principle of the matching structure of a pneumatic chuck and a chuck jaw in the embodiment of the present application is as follows: one end of the workpiece to be cut is coaxially passed through the slip ring body 31, the first sleeve 412 and the second flange 431 in sequence, and extends to the outside of the second flange 431 through the flange opening of the second flange 431; then, the external air source is started, and the first air inlet 324 is ventilated through the external air source, and the gas enters the two first air inlet holes 3111 through the air inlet ring 33-shaped groove connected to the first air inlet 324. Since the two first air inlet holes 3111 are respectively connected to the upper air inlet The channel is connected to the lower air inlet channel, and the air inlet clamping channel 46 connected to the fourth air cavity 455 is connected to the upper air inlet channel, and the air inlet clamping channel 46 connected to the second air cavity 453 is connected to the lower air inlet channel; thus, as the space between the second air cavity 453 and the fourth air cavity 455 gradually becomes larger, the first movable sleeve 44 and the second movable sleeve 45 move toward the direction close to the first flange 41, so that the connecting rod 5 drives the clamping jaw body 52 to move toward the direction close to the workpiece through the adjusting block 51, until the four clamping jaw bodies 52 clamp the workpiece together to complete the clamping of the workpiece.

[0069] After the workpiece is cut, when it is necessary to loosen the workpiece, the second air inlet 325 is ventilated through an external air source, and the gas enters the two second air inlet holes 3112 through the air inlet ring 33-shaped groove connected to the second air inlet 325. Since the two second air inlet holes 3112 are respectively connected to the left air inlet channel and the right air inlet channel, and the air inlet loosening channel 47 connected to the third air cavity 454 is connected to the left air inlet channel, and the air inlet loosening channel 47 connected to the first air cavity 452 is connected to the right air inlet channel; thus, as the space between the first air cavity 452 and the third air cavity 454 gradually becomes larger, the first movable sleeve 44 and the second movable sleeve 45 move away from the first flange 41, so that the connecting rod 5 drives the clamping jaw body 52 to move away from the workpiece through the adjusting block 51 until the four clamping jaw bodies 52 release the workpiece, thereby completing the loosening of the workpiece.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A matching structure of a pneumatic chuck and a chuck jaw, characterized in that: It comprises a connecting seat, an air intake component, a driving component and a clamping jaw assembly arranged on the connecting seat, wherein the air intake end of the air intake component is connected to an external air source, the air intake component is connected to the driving component, the clamping jaw assembly comprises a clamping component connected to the driving component, and the driving component drives the clamping end of the clamping jaw component to clamp the workpiece by air pressure; The driving component comprises an intermediate bearing inner cover (4) connected to the air intake component and a sliding component arranged in the intermediate bearing inner cover (4); a first sleeve (412) for passing a workpiece to be clamped is arranged in the intermediate bearing inner cover (4); an outer cover (43) is detachably connected to the intermediate bearing inner cover (4); an end of the outer cover (43) away from the connecting seat is detachably connected to a second flange (431); an end surface of the second flange (431) close to the outer cover (43) is hingedly connected to a connecting rod (5) connected to the sliding component; a long strip hole (432) is provided on the second flange (431) for the connecting rod (5) to extend out; and an end of the connecting rod (5) away from the sliding component is connected to the clamping component; The end surface of the second flange (431) away from the outer cover (43) is provided with a slide groove (434) corresponding to the position of the long hole (432) and connected to the long hole (432). The clamping component includes an adjustment block (51) slidably connected to the slide groove (434) and a clamping claw body (52) detachably connected to the side of the adjustment block (51) away from the second flange (431). A connecting groove (511) corresponding to the position of the connecting rod (5) is provided on the side of the adjustment block (51) close to the outer cover (43), and the end of the connecting rod (5) away from the sliding member extends into the connecting groove (511).

2. The matching structure of a pneumatic chuck and a chuck jaw according to claim 1, characterized in that: An extension block (512) is integrally formed on a side of the adjustment block (51) away from the connecting rod (5); an insertion block (521) is fixedly connected to a side of the clamping jaw body (52) close to the adjustment block (51); a slot (513) for plugging and cooperating with the insertion block (521) is provided on a side of the extension block (512) close to the clamping jaw body (52); a fixing block (522) is integrally formed on a side of the extension block (512) close to the clamping jaw body (52) and located at an end of the slot (513); the fixing block (522) is detachably connected to the clamping jaw body (52).

3. The matching structure of a pneumatic chuck and a chuck jaw according to claim 2, characterized in that: The driving component also includes a limiting component, which includes two pressure plates (6) detachably connected to the side of the second flange (431) away from the outer cover (43), an adjustment plate (61) detachably connected to the pressure plate (6), and an adjustment member (62) arranged on the adjustment plate (61) for limiting the clamping claw body (52), the extension block (512) is located between the two pressure plates (6), and a side of the pressure plate (6) close to the adjustment block (51) is in contact with a side of the adjustment block (51) close to the extension block (512).

4. The matching structure of a pneumatic chuck and a chuck jaw according to claim 3, characterized in that: Two first blocks (5121) are fixedly connected to one end of one side of the extension block (512) having a slot (513), a dust baffle (63) is fixedly connected between the two pressure plates (6), and two second blocks (631) are bent on one side of the dust baffle (63) close to the clamping claw body (52), and the second block (631) corresponds to the first block (5121) at a limiting position.

5. The matching structure of a pneumatic chuck and a chuck jaw according to claim 3, characterized in that: A bending baffle (64) is detachably connected between the adjustment plate (61) and the pressure plate (6) via bolts, and the bending portion of the bending baffle (64) blocks the end of the slide groove (434) so ​​that the adjustment block (51) cannot fall off from the slide groove (434).

6. The matching structure of a pneumatic chuck and a chuck jaw according to claim 1, characterized in that: The clamping jaw assemblies are provided in four groups, and the four groups of the clamping jaw assemblies are arranged on the second flange (431) at equal intervals.

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