CN115319619A

CN115319619A - Clamp of polishing equipment

Info

Publication number: CN115319619A
Application number: CN202211244842.2A
Authority: CN
Inventors: 钱义; 李斯林; 孙明
Original assignee: Jingji Precision Components Nantong Co ltd
Current assignee: Jingji Precision Components Nantong Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-11-11

Abstract

The invention relates to the field of grinding devices, in particular to a clamp of polishing equipment. Be equipped with first slide and second slide in first spout and the second spout respectively, first jack catch and second jack catch are used for clamping tubular product on the support, and balanced jack catch is used for driving tubular product and rotates to the horizontality. The adjusting ring initial state is located the middle part of first jack catch and second jack catch, and first locking piece is used for adjusting the ring locking in initial position to when tubular product rotates to the level, remove the restriction to the adjusting ring. When the adjusting spring is released, the adjusting ring is pushed to the gravity eccentric position of the pipe. The second adjusting assembly is connected with the adjusting ring and used for balancing gravity eccentricity of the pipe when the adjusting ring moves to the eccentricity position of the pipe. The adjusting ring moves to the eccentric position of the pipe, and the second adjusting assembly is used for balancing the eccentric position of the pipe, so that the shaking amplitude of the clamping part of the grinding machine in the pipe grinding process of the grinding machine is reduced.

Description

Clamp of polishing equipment

Technical Field

The invention relates to the field of grinding devices, in particular to a clamp of polishing equipment.

Background

The grinding process is one of the important ring joints in the intelligent manufacturing equipment industry, and a grinding machine used for polishing utilizes a grinding tool to cut off redundant materials on the surface of a workpiece.

Because foreign matters (such as rust, welding slag and the like) are easy to adhere to the surface of the pipe when the pipe is used for a long time or is limited for a long time, or the surface of the pipe is provided with irregular bulges after welding, the surface of the pipe needs to be ground and polished. When the existing polishing equipment is used for polishing a pipe workpiece, a clamping part of the polishing equipment clamps the pipe firstly. Due to the existence of the foreign matters and the irregular convex objects on the surface of the pipe, when the pipe rotates in the polishing process, the foreign matters or the convex objects can enable the pipe to deviate from the rotating axis, so that the pipe can generate centrifugal force to shake the equipment when rotating, the polishing equipment is unstable in working, and the polishing efficiency of the polishing equipment on the pipe is influenced.

Disclosure of Invention

The invention provides a clamp of polishing equipment, which solves the problem of large shaking amplitude when the clamp of the polishing equipment drives a pipe to rotate.

The clamp of the polishing equipment adopts the following technical scheme:

a clamp of polishing equipment comprises a bracket, a clamping component, a first adjusting component and a second adjusting component; the bracket is barrel-shaped, and the radial direction of the bracket is vertical to the horizontal direction; a first sliding groove and a second sliding groove are arranged on the peripheral wall of the bracket and are symmetrically arranged; a first sliding plate and a second sliding plate are respectively arranged in the first sliding chute and the second sliding chute; the clamping assembly comprises a first clamping jaw, a second clamping jaw and a balance clamping jaw; the first claw is rotatably arranged on the first sliding plate; the second jaw is rotatably arranged on the second jaw; the first clamping jaw and the second clamping jaw are used for clamping the pipe on the support, and the heavier end of the pipe is positioned at one side close to the second clamping jaw; the balance clamping jaw is rotatably arranged at the axis of the bracket and is used for driving the pipe to rotate to a horizontal state;

the adjusting assembly comprises a transmission mechanism, a driving wheel, an adjusting ring, an adjusting spring, a first locking piece and an adjusting rod; the adjusting rod is slidably inserted on the first clamping jaw along the radial direction of the support; the adjusting ring is positioned in the pipe, and the adjusting ring is positioned in the middle of the first clamping jaw and the second clamping jaw in an initial state; the first locking piece is used for locking the adjusting ring at an initial position so as to remove the limitation on the adjusting ring when the pipe rotates to the horizontal position; one end of the adjusting spring is connected with the adjusting ring, the other end of the adjusting spring is connected with the adjusting rod, the adjusting spring is compressed when the adjusting rod moves towards the direction of the second clamping jaw, and the adjusting ring is pushed to the gravity eccentric position of the pipe when the adjusting spring is released; the driving wheel is used for driving the balance claw to rotate; the transmission mechanism is connected with the adjusting rod and the driving wheel, so that the driving wheel rotates to drive the adjusting rod to move towards the second clamping jaw; the second adjusting assembly is connected with the adjusting ring and used for balancing gravity eccentricity of the pipe when the adjusting ring moves to the eccentricity position of the pipe.

Further, the first adjusting assembly further comprises a fixed pipe; one end of the fixed pipe is fixedly connected with the first clamping jaw, and the axis of the fixed pipe is superposed with the diameter of the bracket; the pipe is sleeved on the fixed pipe; the adjusting rod is positioned in the fixed pipe; the adjusting ring is slidably mounted on the fixed tube.

Further, the first locking assembly comprises a pull rope and a locking button; the locking button is fixedly arranged on the fixed pipe and is positioned on one side close to the first clamping jaw; the locking button is provided with a locking hole, and when the locking button receives the pressing, the locking hole is opened; a stop block is arranged on the inner wall of the bracket; the stop block is used for pressing the locking button when the fixed pipe slides to be parallel to the horizontal position; one end of the pull rope is connected with the adjusting ring, and the other end of the pull rope is inserted into the locking hole of the locking button.

Further, the transmission mechanism comprises a transmission gear and a driving gear ring; the adjusting rod is a telescopic rod, one end of the adjusting rod is fixedly connected with the axis of the adjusting ring, and the peripheral wall of the adjusting rod is provided with a spiral groove; the driving wheel and the bracket are coaxially and rotatably arranged; the driving gear ring is fixedly sleeved on the driving wheel; the transmission gear is rotatably sleeved on the adjusting rod and matched with the spiral groove on the adjusting rod so as to drive the adjusting rod to slide towards the second clamping jaw when the transmission gear rotates; the transmission gear is meshed with the driving gear ring.

Further, the second adjusting assembly comprises a counterweight strip, a toothed bar, an operating disc, a first torsion spring and a second locking piece; the adjusting ring is provided with a sliding groove arranged along the radial direction of the adjusting ring; the counterweight strip is slidably arranged in the chute of the adjusting ring; one side of the counterweight strip close to the second claw is a tooth surface; the toothed bar is a telescopic rod, is arranged in the pipe and is positioned between the adjusting ring and the second clamping jaw; the end surface of the gear lever at one end of the adjusting ring is a tooth surface; one end of the toothed bar is meshed with the counterweight strip; the operating disk is rotatably arranged on the second clamping jaw, and the axis of the operating disk is fixedly connected with the other end of the toothed bar; the first torsion spring is rotatably arranged and is positioned between the operating disk and the second jaw, and two torsion bars of the torsion spring are respectively connected with the operating disk and the second jaw; the second locking piece is configured to lock the second clamping jaw and simultaneously enable the second clamping jaw to be fixedly connected with the operating disk when the eccentric gravity generated by the counterweight strip and the eccentric gravity generated by the pipe are collinear.

Furthermore, a mounting disc is arranged on the support; the mounting disc is provided with a mounting groove; the mounting groove is a ring groove and is coaxial with the mounting disc; the balance clamping jaw is rotatably arranged and connected with the mounting groove; the driving wheel and the mounting disc are coaxially arranged and can rotate mutually; a second torsion spring is arranged between the driving wheel and the balancing jaw; two torsion bars of the second torsion spring are respectively connected with the driving wheel and the balancing clamping jaw, and the stiffness coefficient of the second torsion spring, the adjusting rod, the driving toothed ring and the transmission gear are configured, so that the adjusting spring pushes the adjusting ring to the gravity eccentricity position of the pipe after being released.

Furthermore, a balance hole is arranged on the mounting disc; the balance hole is positioned in the radial direction of the disc turntable vertical to the horizontal plane; the balance claw comprises a connecting ring, a balance plate, a rotation stopping rod and two sliding rods; the connecting ring and the mounting groove are coaxially arranged and can be rotatably inserted in the mounting groove; the balance plate is fixedly connected with the connecting ring, and two linear grooves which are radially superposed with the connecting ring and symmetrically arranged are arranged on the balance plate; the sliding rods are perpendicular to the mounting plate, and each sliding rod is inserted into one linear groove in the balance plate; a jack catch spring is arranged in the linear groove of each balance plate; one end of the jack catch spring is fixedly connected with one end of the balance plate far away from the linear groove, and the other end of the jack catch spring is fixedly connected with the sliding rod; the rotation stopping rod is an elastic telescopic rod, one end of the rotation stopping rod is fixedly arranged in the linear groove of the balance plate, and the other end of the rotation stopping rod is in contact with the mounting disc so that the rotation stopping rod is inserted into the balance hole when the rotation stopping rod rotates to the position of the balance hole.

Further, the second locking piece comprises a locking rod and a locking pin; a locking hole is formed in the second sliding plate; a first fixed rod is arranged in the direction of the second clamping jaw far away from the axis of the support; the first torsion spring is sleeved on the first fixing rod; the operating panel is rotatably arranged on the first fixed rod, and a handle is arranged on the operating panel; the locking pin is an elastic pin, one end of the locking pin is fixedly connected with the second clamping jaw, and the locking pin is inserted into the locking hole when the second clamping jaw rotates for a preset angle; the locking rod penetrates through the operation disc and is fixedly connected with the second clamping jaw when the locking pin is inserted into the locking hole.

Further, the first jaw includes a jaw portion and a rotating portion; the rotating part shell is rotatably arranged on the first sliding plate; the clamping claw part is positioned on the openable clamping claw so as to clamp the pipe when the clamping claw part is closed and synchronously rotate with the rotating part; the second jaw has the same structure as the first jaw.

Furthermore, a plurality of stop pins are arranged on the bracket; the stop pin is arranged on the bracket and used for fixedly connecting the first sliding plate and the second sliding plate with the support when the pipe rotates to the horizontal position; the stop pin at one side of the first jaw may be a stopper.

The beneficial effects of the invention are: the clamp of the polishing equipment comprises a bracket, a clamping component, a first adjusting component and a second adjusting component, and a first sliding plate and a second sliding plate can respectively slide in a first sliding groove and a second sliding groove on the bracket. After the first clamping jaw and the second clamping jaw clamp the pipe, the heavier end of the pipe is manually placed on one side of the second clamping jaw. Tubular product takes place to deflect under the drive of first jack catch and second jack catch under the effect that one side is heavier, rotates the drive wheel, and the drive wheel passes through balanced jack catch and resumes horizontal position with tubular product again, and in this process, under the combined action of regulating spring, drive mechanism and first locking piece, make the regulation pole promote the adjustable ring to the eccentric position of tubular product. The second adjusting component is used for balancing the eccentric position of the pipe, so that the eccentric gravity of the pipe is the same as that of the adjusting ring, the stability of the pipe in the rotating process is improved, and the shaking amplitude of the grinding machine clamp in the grinding process is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view showing an embodiment of a jig of a polishing apparatus according to the present invention;

FIG. 2 is a schematic view showing an internal structure of an embodiment of a jig of a polishing apparatus according to the present invention;

FIG. 3 is an exploded view of an embodiment of a jig of a polishing apparatus according to the present invention;

FIG. 4 is a schematic structural view of a carrier of an embodiment of a jig of a polishing apparatus according to the present invention;

FIG. 5 is a schematic view showing a structure of a driving wheel of an embodiment of a jig of a polishing apparatus according to the present invention;

FIG. 6 is a schematic view of a portion of the structure at A in FIG. 5;

FIG. 7 is a schematic view of a holding member of an embodiment of a jig of a polishing apparatus according to the present invention;

FIG. 8 is an exploded view of the clamping assembly of an embodiment of the clamp of a polishing apparatus of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at B;

fig. 10 is a schematic view showing a first holding jaw structure of an embodiment of a jig of a polishing apparatus of the present invention;

fig. 11 is a schematic structural view of a second holding jaw of the embodiment of the jig of the polishing apparatus of the present invention;

FIG. 12 is a schematic view showing the structure of a pipe deflected by gravity on one side of the pipe in an embodiment of the clamping apparatus of the polishing apparatus according to the present invention;

FIG. 13 is a structural diagram illustrating a final state of a pipe of an embodiment of a clamp of a polishing apparatus according to the present invention;

in the figure: 100. a support; 110. a first chute; 120. a second chute; 130. mounting grooves; 150. a balance hole; 160. a retaining pin; 170. a safety door; 200. a pipe; 310. a drive wheel; 311. a drive gear ring; 331. a rotating part; 313. a driving handle; 314. driving the clamping rod; 320. a balancing claw; 321. a connecting ring; 322. a balance plate; 323. a slide bar; 324. a jaw spring; 325. a rotation stopping rod; 326. a first torsion spring; 330. a transmission gear; 340. adjusting a rod; 341. a helical groove; 342. adjusting the spring; 400. a clamping assembly; 410. a first jaw; 411. a first slide plate; 412. a claw part; 413. locking the button; 414. locking the bolt; 420. a second jaw; 421. a second slide plate; 423. a locking pin; 424. a locking hole; 500. a first adjustment assembly; 510. an adjusting ring; 511. pulling a rope; 520. a weight strip; 600. a second adjustment assembly; 610. an operation panel; 611. a lock lever; 613. a rack bar; 620. a second torsion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In one embodiment of the present invention, as shown in fig. 1 to 13, a jig of a polishing apparatus includes a carrier 100, a clamping assembly 400, a first conditioning assembly 500, and a second conditioning assembly 600. The bracket 100 has a barrel shape, and a radial direction of the bracket 100 is perpendicular to a horizontal direction. The peripheral wall of the bracket 100 is provided with a first sliding chute 110 and a second sliding chute 120, the first sliding chute 110 and the second sliding chute 120 are symmetrically arranged, as shown in fig. 2, the first sliding chute 110 and the second sliding chute 120 are respectively located at the left side and the right side of the bracket 100, and both the first sliding chute 110 and the second sliding chute 120 penetrate through the peripheral wall of the support. First sliding plate 411 and second sliding plate 421 are respectively arranged in first sliding chute 110 and second sliding chute 120, and first sliding plate 411 and second sliding plate 421 can respectively rotate around the axis of support circumference in first sliding chute 110 and second sliding chute 120.

The clamping assembly 400 includes a first jaw 410, a second jaw 420, and a counterbalancing jaw 320. The first jaw 410 is rotatably installed on the first sliding plate 411, the second jaw 420 is rotatably installed on the second jaw 420, the first jaw 410 and the second jaw 420 can both extend into the support, the first jaw 410 is located at the left side of the support 100, and the second jaw 420 is located at the right side of the support 100. The first jaw 410 and the second jaw 420 are used for clamping the pipe 200 on the bracket 100, and the heavier end of the pipe 200 is located at the side close to the second jaw 420, and the pipe 200 can incline rightwards, specifically, when the pipe 200 is preliminarily clamped by the first jaw 410 and the second jaw 420, the pipe 200 is driven by gravity eccentricity to rotate relative to the first jaw 410 and the second jaw 420 until the eccentric position of the pipe 200 rotates to the position right below the pipe 200, and at the moment, the first jaw 410 and the second jaw 420 further clamp the pipe 200, so that the pipe 200 can not rotate relative to the first jaw 410 and the second jaw 420 any more. The balance claw 320 is rotatably installed at the axis of the bracket 100, the balance claw 320 clamps the middle part of the pipe 200 and is used for driving the pipe 200 to rotate to a horizontal state, and when the pipe 200 is static in an inclined state, the balance claw 320 can drive the axis of the bracket 100 of the pipe 200. Specifically, the first jaw 410 includes a jaw portion 412 and a rotating portion 331. The rotating part 331 is rotatably disposed on the first sliding plate 411, and when the pipe 200 is clamped by the rotating parts 331 of the first jaw 410 and the second jaw 420, the pipe is preliminarily clamped. The claw part 412 is positioned on a claw which can be opened and closed, so that when the claw part 412 is closed, the pipe 200 is clamped and rotates synchronously with the rotating part 331; the second jaw 420 and the first jaw 410 have the same structure, and when the second jaw 420 and the first jaw 410 clamp the pipe 200, the pipe 200 is further clamped.

The adjustment assembly includes a transmission mechanism, a drive wheel 310, an adjustment ring 510, an adjustment spring 342, a first lock, and an adjustment lever 340. The adjusting rod 340 is slidably inserted onto the first jaw 410 in the radial direction of the bracket 100 and is located inside the tube 200. The adjusting ring 510 is an annular shell, the inner cavity is a mounting cavity, the adjusting ring 510 is located in the pipe 200, the adjusting ring is coaxial with the pipe 200 and can be slidably arranged along the axial direction of the pipe 200, the initial state is located in the middle of the first clamping jaw and the second clamping jaw 420, and the outer peripheral wall of the adjusting ring 510 is in contact with the inner peripheral wall of the pipe 200. The first locking part is used for locking the adjusting ring 510 at an initial position, the adjusting ring 510 at the initial position cannot slide freely, so that when the pipe 200 is rotated to the horizontal by the balance claws 320, the limitation on the adjusting ring 510 is removed, and the adjusting ring 510 can slide freely in the pipe 200. One end of the adjusting spring 342 is connected with the adjusting ring 510, the other end is connected with the adjusting lever 340, the adjusting spring 342 is in an original length, the adjusting spring 342 is compressed when the adjusting lever 340 moves towards the second jaws 420, the adjusting spring 342 continuously accumulates force when rotating to a horizontal position because the adjusting ring 510 cannot slide, and the adjusting spring 342 pushes the adjusting ring 510 to a gravity eccentricity position of the pipe 200 when releasing. The driving wheel 310 is used for driving the balance jaw 320 to rotate, the transmission mechanism is connected with the adjusting rod 340 and the driving wheel 310, so that the driving wheel 310 rotates to drive the adjusting rod 340 to move towards the direction of the second jaw 420, and the transmission ratio among the transmission mechanism, the driving wheel 310, the adjusting rod 340 and the adjusting spring 342 is configured such that elastic potential energy released by the adjusting spring 342 pushes the adjusting ring 510 to move rightwards to the segregation position of the pipe 200, so as to further perform balancing processing on the eccentric position of the pipe 200. The first adjusting assembly 500 further comprises a fixing tube, one end of the fixing tube is fixedly connected with the first jaw 410, and the axis of the fixing tube coincides with the diameter of the bracket 100. The pipe 200 is sleeved on the fixed pipe, the adjusting rod 340 is positioned in the fixed pipe, the adjusting ring 510 is slidably mounted on the fixed pipe, the fixed pipe plays a role in fixing the adjusting ring 510, and the adjusting rod 340 is mounted in the fixed pipe.

A second adjustment assembly 600 is connected to adjustment ring 510 for balancing the gravity eccentricity of the pipe 200 as adjustment ring 510 is moved to the eccentricity of the pipe 200 to complete the balancing of the gravity eccentricity of the pipe 200. The second adjusting assembly 600 includes a weight bar 520, a rack bar 613, an operating plate 610, a first torsion spring 326, and a second locking member. The adjusting ring 510 is provided with a sliding slot arranged along the radial direction thereof, the weight bar 520 is slidably arranged in the sliding slot of the adjusting ring 510, and one side of the weight bar 520 close to the second pawl 420 is a tooth surface. The rack bar 613 is a telescopic rod, and is disposed in the pipe 200 between the adjusting ring 510 and the second jaw 420, and the end surface of the rack bar 613 at one end of the adjusting ring 510 is a tooth surface. One end of the toothed bar 613 is engaged with the weight strip 520 to drive the weight strip 520 to slide back and forth in the horizontal direction within the adjusting ring 510 when the toothed bar 613 rotates, thereby changing the eccentricity generated by the gravity of the pipe 200. The operating plate 610 is rotatably disposed on the second jaw 420, and the axial center of the operating plate 610 is fixed to the other end of the rack 613. The first torsion spring 326 is rotatably disposed between the operating plate 610 and the second pawl 420, two torsion bars of the torsion spring are respectively connected to the operating plate 610 and the second pawl 420 to drive the first torsion spring 326 to accumulate force when the operating plate 610 rotates, the first torsion spring 326 accumulates force to a certain extent that the operating plate 610 drives the second pawl 420 to rotate through the first torsion spring 326, and specifically, the driving wheel 310 is provided with the driving clamping rod 314, and the driving clamping rod 314 is connected to one torsion bar of the first torsion spring 326. The first locking member is configured to lock the second jaw 420 while fixedly coupling the second jaw 420 to the operating plate 610 when the eccentric weight generated from the weight strip 520 and the eccentric weight generated from the pipe 200 are collinear.

The second lock member includes a lock lever 611 and a lock pin 423. A locking hole 424 is formed in the second sliding plate 421, a first fixing rod is arranged in the direction of the second jaw 420 away from the axis of the support, the first torsion spring 326 is sleeved on the first fixing rod, the operating panel 610 is rotatably arranged on the first fixing rod, and a handle is arranged on the operating panel 610; the locking pin 423 is an elastic pin, and one end of the locking pin 423 is fixedly connected with the second jaw 420, so that when the second jaw 420 rotates by a preset angle, and the preset angle is an eccentric line which is symmetrical and collinear with the eccentricity generated by the weight bar 520 and the tube 200, the locking pin 423 is inserted into the locking hole 424. The locking rod 611 is used to fixedly connect the second claw 420 to the operation panel 610 when the locking pin 423 is inserted into the locking hole 424.

In this embodiment, as shown in fig. 3 to 9, the first locking assembly includes a pull string 511 and a locking button 413. The locking button 413 is fixedly mounted on the fixing tube at a side close to the first jaw 410. The locking button 413 is provided with a locking hole 424, and when the locking button 413 receives pressing, the locking hole 424 is opened. A stop block is arranged on the inner wall of the bracket 100, the inner wall of the stop block bracket 100, and the connecting line of the stop block and the axis of the bracket 100 is parallel to the horizontal direction; the stopper is used for pressing the locking button 413 when the fixing pipe slides to a state parallel to the horizontal position, so that the locking hole 424 on the locking button 413 is opened. One end of the pulling rope 511 is connected with the adjusting ring 510, the other end of the pulling rope 511 is inserted into the locking hole 424 of the locking button 413, the locking hole 424 is closed, so that the other end of the pulling rope 511 is locked, when the locking hole 424 is opened, the pulling rope 511 is released instantly, and then the adjusting spring 342 is released instantly. A plurality of retaining pins 160 are provided on the bracket 100. The stop pin 160 is disposed on the bracket 100, and is used to fixedly connect the first sliding plate 411 and the second sliding plate 421 to the support when the pipe 200 rotates to the horizontal position, so that the first sliding plate 411 and the second sliding plate 421 do not slide any more, and the pipe 200 is fixed to the horizontal position. The stopping pin 160 positioned at one side of the first jaw 410 may be a stopper. The stop screw on one side of the first jaw 410 may be used to press the lock button 413 by the stop pin 160 when the pipe 200 is rotated to a horizontal state, so that the lock hole 424 is opened. Further, a locking bolt 414 is provided on the first sliding plate 411, and the locking bolt 414 is used to fixedly couple the first jaw 410 and the first sliding plate 411 in the initial state, so that the rotating portion 331 of the first jaw 410 cannot rotate.

In the present embodiment, as shown in fig. 5 to 10, the transmission mechanism includes a transmission gear 330 and a drive ring gear 311. The adjusting rod 340 is a telescopic rod, one end of the adjusting rod is fixedly connected with the axis of the adjusting ring 510, the other end of the adjusting rod extends out of the first clamping jaw 410 rightwards, a spiral groove 341 is formed in the peripheral wall of the adjusting rod 340, an adjusting spring 342 is sleeved on the adjusting rod 340, one end of the adjusting spring is fixedly connected with the adjusting ring 510, the other end of the adjusting spring is fixedly connected with the adjusting rod 340, and therefore when the adjusting rod 340 contracts and the position of the adjusting ring 510 is unchanged, the adjusting rod 340 compresses the adjusting spring 342. The driving wheel 310 is coaxially and rotatably disposed with the bracket 100, the driving gear ring 311 is fixedly sleeved on the driving wheel 310, and particularly, the driving handle 313 is disposed at the rear side of the driving wheel 310. The transmission gear 330 is rotatably sleeved on the adjusting rod 340 and is matched with the spiral groove 341 on the adjusting rod 340, so that the adjusting rod 340 is driven to slide towards the second jaw 420 when the transmission gear 330 rotates, and the adjusting rod 340 contracts when the adjusting rod 340 moves horizontally to the right. The transmission gear 330 is engaged with the driving gear ring 311, and the driving wheel 310 drives the transmission gear 330 to rotate through the driving gear ring 311, so that the adjusting rod 340 is moved and contracted.

In this embodiment, as shown in fig. 3 to 6, a mounting plate is disposed on the bracket 100, and a mounting groove 130 is disposed on the mounting plate, specifically, as shown in fig. 2, the mounting plate is located at the rear side of the bracket 100. The safety door 170 is arranged on the front side of the bracket 100, and the safety door 170 is arranged in an openable and closable mode, so that when the pipe 200 is subjected to the grinding treatment, the safety door 170 is in a door closing state to improve the safety of the device. The mounting groove 130 is a ring groove and is disposed coaxially with the mounting disk. The balancing jaw 320 is rotatably disposed in connection with the mounting groove 130. The drive wheel 310 is coaxially disposed with the mounting plate and both are rotatable with respect to each other. A second torsion spring 620 is arranged between the driving wheel 310 and the balance jaw 320, two torsion bars of the second torsion spring 620 are respectively connected with the driving wheel 310 and the balance jaw 320, the driving wheel 310 drives the balance jaw 320 to rotate through the second torsion spring 620, specifically, when the driving wheel 310 rotates to drive the second torsion spring 620 to compress and accumulate force, and when the torsion of the second torsion spring 620 is greater than the gravity on the right side of the pipe 200, the driving wheel 310 drives the balance jaw 320 to rotate through the second torsion spring 620, so as to drive the pipe 200 to rotate. The heavier the right side of the pipe material 200, the greater the amount of deformation of the torsion spring, the greater the angle of rotation of the driving wheel 310, and further the greater the distance of rightward movement of the adjustment lever 340, while the stronger the adjustment spring 342 is made to be compressed, the stiffness coefficient of the second torsion spring 620, and the transmission ratio between the adjustment lever 340, the driving toothed ring 311 and the transmission gear 330 are configured such that the adjustment spring 342 pushes the adjustment ring 510 to the gravity eccentricity of the pipe material 200 after being released.

The mounting plate is provided with a balance hole 150, and the balance hole 150 is positioned in the radial direction of the plate rotating plate vertical to the horizontal plane. The balancing jaw 320 includes a coupling ring 321, a balancing plate 322, a rotation stopping bar 325, and two sliding bars 323. The connection ring 321 and the installation groove 130 are coaxially disposed and rotatably inserted into the installation groove 130. The balance plate 322 is fixedly connected with the connecting ring 321, and two linear grooves which are radially overlapped with the connecting ring 321 and symmetrically arranged are arranged on the balance plate 322. The sliding rods 323 are perpendicular to the mounting plate, each sliding rod 323 is inserted into a linear slot on the balancing plate 322, and a jaw spring 324 is arranged in the linear slot of each balancing plate 322. One end of a jaw spring 324 is fixedly connected with one end of the balance plate 322 far away from the linear groove, the other end of the jaw spring 324 is fixedly connected with the sliding rod 323, and the jaw spring 324 ensures the clamping force of the two sliding rods 323 on the pipe 200. The rotation stopping rod 325 is an elastic telescopic rod, one end of which is fixedly arranged in the linear groove of the balance plate 322, and the other end of which is in contact with the mounting plate, so that when the rotation stopping rod 325 rotates to the position of the balance hole 150, the rotation stopping rod 325 is inserted into the balance hole 150.

During operation, the locking bolt 414 is screwed into the first sliding plate 411 and the first jaw 410, the stop pin 160 is inserted and fixed to fix the first jaw 410 and the second jaw 420 at the horizontal position of the bracket 100, the adjusting ring 510 is located at the middle position of the fixing pipe, the adjusting spring 342 is in the original length state, the locking rod 611 on the second locking member is pulled out, the relative rotation between the adjusting disc and the second jaw 420 is not limited, and the locking pin 423 abuts against the locking bolt 414 on the right side, so that the locking pin 423 is in a compressed state. The pipe material 200 is placed between the first jaw 410 and the second jaw 420, the pipe material 200 is coaxial with the rotating parts 331 of the first jaw 410 and the second jaw 420, and the pipe material 200 can rotate relative to the rotating parts 331 while the heavy side of the pipe material 200 is positioned at the right side of the bracket 100.

At this time, the clamping claw parts 412 of the first clamping claw 410 and the second clamping claw 420 do not clamp the pipe 200, the pipe 200 is allowed to rotate freely, the heavier side of the pipe 200 drives the pipe 200 to rotate under the action of gravity eccentricity, and finally the heavier side of the pipe 200 deflects to a position right below the pipe 200. Then, the two sliding rods 323 of the balancing claw 320 clamp the pipe 200, and fix the pipe 200.

Then, the position of the first and

second jaws

410, 420 is restricted by the lock bolt 414, and the lock bolt 414 is not completely pulled out. At this time, since one side of the pipe 200 is heavy, the first jaw 410 and the second jaw 420 rotate together in the bracket 100 under the action of the heavy side of the pipe 200, and the first sliding block and the second sliding block slide in the corresponding first sliding slot 110 and second sliding slot 120 until they are still.

Then, the driving handle 313 behind the driving wheel 310 is swung, the transmission gear 330 is transmitted through the driving toothed ring 311 on the driving wheel 310, the transmission toothed ring moves the adjusting rod 340 to the right, and the adjusting rod 340 contracts and shortens to the right. Meanwhile, the driving wheel 310 compresses the second torsion spring 620 to drive the balance jaw 320 to rotate, the balance jaw 320 drives the pipe 200 to rotate, when the pipe 200 rotates to be horizontal, the rotation stopping rod 325 is located at the position of the balance hole 150, the rotation stopping rod 325 pops out to be clamped into the balance hole 150, meanwhile, the locking button 413 is triggered by the locking bolt 414, the pulling rope 511 is released, the adjusting spring 342 pushes the adjusting ring 510 to slide rightwards, then the locking bolt 414 is inserted again to fix the first sliding plate 411 and the second sliding plate 421. The adjustment ring 510 may be moved to the same axial position as the projection by setting the appropriate gear ratio. Adjustment ring 510 compresses tooth bar 613 shorter as it moves to the right.

Then, the locking bolt 414 is released, the first jaw 410 is rotated relative to the first sliding plate 411, the pipe 200 is held only by the jaw portion 412 of the second jaw 420, the pipe 200 and the second jaw 420 are rotated synchronously, then the handle of the operating plate 610 is shaken to rotate the operating plate 610, since the operating plate 610 rotates the rack bar 613, the weight bar 520 is driven by the rack bar 613, and the operating plate 610 rotates the first torsion spring 326 to rotate the second jaw 420. So that the weight block can slide within the adjustment ring 510 in a direction opposite to the eccentric position of the tube 200. When the second jaw 420 is rotated until the locking pin 423 is inserted into the locking hole 424, the eccentricity of the pipe 200 and the eccentricity generated by the weight bar 520 are collinear, and the collinear line is parallel to the horizontal direction.

By setting a suitable transmission ratio, the weight bar 520 can be moved to a position on the same horizontal line and opposite to the eccentric position of the pipe 200, which can balance the rotating centrifugal force of the eccentric position of the pipe 200 with the rotating centrifugal force of the weight bar 520.

Then, the lock lever 611 is screwed into the fixed operation plate 610 at a position opposite to the second claws 420, and then the claw portions 412 of the first claws 410 are clamped to the pipe material 200 while the restriction of the lock bolt 414 is released. Then, the pipe 200 is driven to rotate by an external device, and the pipe 200 is polished.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A clamp of polishing equipment is characterized in that: the method comprises the following steps:

the bracket is barrel-shaped, and the radial direction of the bracket is vertical to the horizontal direction; a first sliding groove and a second sliding groove are arranged on the peripheral wall of the bracket and are symmetrically arranged; a first sliding plate and a second sliding plate are respectively arranged in the first sliding chute and the second sliding chute;

the clamping assembly comprises a first clamping jaw, a second clamping jaw and a balance clamping jaw; the first claw is rotatably arranged on the first sliding plate; the second jaw is rotatably arranged on the second jaw; the first clamping jaw and the second clamping jaw are used for clamping the pipe on the support, and the heavier end of the pipe is positioned at one side close to the second clamping jaw; the balance clamping jaw is rotatably arranged at the axis of the bracket and is used for driving the pipe to rotate to a horizontal state;

the adjusting assembly comprises a transmission mechanism, a driving wheel, an adjusting ring, an adjusting spring, a first locking piece and an adjusting rod; the adjusting rod is slidably inserted on the first clamping jaw along the radial direction of the support; the adjusting ring is positioned in the pipe, and the adjusting ring is positioned in the middle of the first clamping jaw and the second clamping jaw in an initial state; the first locking piece is used for locking the adjusting ring at an initial position so as to remove the limitation on the adjusting ring when the pipe rotates to the horizontal position; one end of the adjusting spring is connected with the adjusting ring, the other end of the adjusting spring is connected with the adjusting rod, the adjusting spring is compressed when the adjusting rod moves towards the direction of the second clamping jaw, and the adjusting ring is pushed to the gravity eccentric position of the pipe when the adjusting spring is released; the driving wheel is used for driving the balance claw to rotate; the transmission mechanism is connected with the adjusting rod and the driving wheel, so that the driving wheel rotates to drive the adjusting rod to move towards the second clamping jaw;

and the second adjusting assembly is connected with the adjusting ring and used for balancing the gravity eccentricity of the pipe when the adjusting ring moves to the eccentricity of the pipe.

2. The jig for a polishing apparatus according to claim 1, wherein:

the first adjustment assembly further comprises a fixed tube; one end of the fixed pipe is fixedly connected with the first clamping jaw, and the axis of the fixed pipe is superposed with the diameter of the bracket; the pipe is sleeved on the fixed pipe; the adjusting rod is positioned in the fixed pipe; the adjusting ring is slidably mounted on the fixed tube.

3. The jig for a polishing apparatus according to claim 2, wherein:

the first locking component comprises a pull rope and a locking button; the locking button is fixedly arranged on the fixed pipe and is positioned on one side close to the first clamping jaw; the locking button is provided with a locking hole, and when the locking button receives the press, the locking hole is opened; a stop block is arranged on the inner wall of the bracket; the stop block is used for pressing the locking button when the fixed pipe slides to be parallel to the horizontal position; one end of the pull rope is connected with the adjusting ring, and the other end of the pull rope is inserted into the locking hole of the locking button.

4. A jig of a polishing apparatus according to claim 2, wherein:

the transmission mechanism comprises a transmission gear and a driving gear ring; the adjusting rod is a telescopic rod, one end of the adjusting rod is fixedly connected with the axis of the adjusting ring, and the peripheral wall of the adjusting rod is provided with a spiral groove; the driving wheel and the bracket are coaxially and rotatably arranged; the driving gear ring is fixedly sleeved on the driving wheel; the transmission gear is rotatably sleeved on the adjusting rod and matched with the spiral groove on the adjusting rod so as to drive the adjusting rod to slide towards the direction of the second clamping jaw when the transmission gear rotates; the transmission gear is meshed with the driving gear ring.

5. The jig for a polishing apparatus according to claim 1, wherein:

the second adjusting assembly comprises a counterweight strip, a toothed bar, an operating disc, a first torsion spring and a second locking piece; the adjusting ring is provided with a sliding groove arranged along the radial direction of the adjusting ring; the counterweight strip is slidably arranged in the chute of the adjusting ring; one side of the counterweight strip close to the second claw is a tooth surface; the toothed bar is a telescopic rod, is arranged in the pipe and is positioned between the adjusting ring and the second clamping jaw; the end surface of the gear lever at one end of the adjusting ring is a tooth surface; one end of the toothed bar is meshed with the counterweight strip; the operating disk is rotatably arranged on the second clamping jaw, and the axis of the operating disk is fixedly connected with the other end of the toothed bar; the first torsion spring is rotatably arranged and is positioned between the operating disk and the second jaw, and two torsion bars of the torsion spring are respectively connected with the operating disk and the second jaw; the second locking piece is configured to lock the second clamping jaw and simultaneously enable the second clamping jaw to be fixedly connected with the operating disk when the eccentric gravity generated by the counterweight strip and the eccentric gravity generated by the pipe are collinear.

6. The jig of a polishing apparatus according to claim 4, wherein:

the bracket is provided with a mounting disc; the mounting disc is provided with a mounting groove; the mounting groove is a ring groove and is coaxial with the mounting disc; the balance clamping jaw is rotatably arranged and connected with the mounting groove; the driving wheel and the mounting disc are coaxially arranged and can rotate mutually; a second torsion spring is arranged between the driving wheel and the balance jaw; two torsion bars of the second torsion spring are respectively connected with the driving wheel and the balancing clamping jaw, and the stiffness coefficient of the second torsion spring, the adjusting rod, the driving toothed ring and the transmission gear are configured, so that the adjusting spring pushes the adjusting ring to the gravity eccentricity position of the pipe after being released.

7. The jig for polishing apparatus according to claim 6, wherein:

a balance hole is arranged on the mounting disc; the balance hole is positioned in the radial direction of the disc turntable vertical to the horizontal plane; the balance claw comprises a connecting ring, a balance plate, a rotation stopping rod and two sliding rods; the connecting ring and the mounting groove are coaxially arranged and can be rotatably inserted in the mounting groove; the balance plate is fixedly connected with the connecting ring, and two linear grooves which are radially superposed with the connecting ring and symmetrically arranged are arranged on the balance plate; the sliding rods are perpendicular to the mounting plate, and each sliding rod is inserted into one linear groove in the balance plate; a jack catch spring is arranged in the linear groove of each balance plate; one end of the jack catch spring is fixedly connected with one end of the balance plate far away from the linear groove, and the other end of the jack catch spring is fixedly connected with the sliding rod; the rotation stopping rod is an elastic telescopic rod, one end of the rotation stopping rod is fixedly arranged in the linear groove of the balance plate, and the other end of the rotation stopping rod is in contact with the mounting disc, so that the rotation stopping rod is inserted into the balance hole when the rotation stopping rod rotates to the position of the balance hole.

8. The jig for polishing apparatus according to claim 5, wherein:

the second locking piece comprises a locking rod and a locking pin; a locking hole is formed in the second sliding plate; the second clamping jaw is provided with a first fixed rod in the direction away from the axis of the support; the first torsion spring is sleeved on the first fixing rod; the operating panel is rotatably arranged on the first fixing rod and is provided with a handle; the locking pin is an elastic pin, one end of the locking pin is fixedly connected with the second clamping jaw, and the locking pin is inserted into the locking hole when the second clamping jaw rotates for a preset angle; the locking rod penetrates through the operation disc and is fixedly connected with the second clamping jaw when the locking pin is inserted into the locking hole.

9. The jig of a polishing apparatus according to claim 1, wherein:

the first claw comprises a claw part and a rotating part; the rotating part shell is rotationally arranged on the first sliding plate; the clamping claw part is positioned on the clamping claw which can be opened and closed, so that when the clamping claw part is closed, the pipe is clamped and synchronously rotates with the rotating part; the second jaw and the first jaw have the same structure.

10. A jig for a polishing apparatus according to claim 3, wherein:

a plurality of stop pins are arranged on the bracket; the stop pin is arranged on the bracket and used for fixedly connecting the first sliding plate and the second sliding plate with the support when the pipe rotates to the horizontal position; the stop pin at one side of the first jaw may be a stopper.