CN113458904B

CN113458904B - Welding seam grinding device

Info

Publication number: CN113458904B
Application number: CN202111035627.7A
Authority: CN
Inventors: 翁达宏; 于红波
Original assignee: Xuzhou Weide Metal Products Co ltd
Current assignee: Xuzhou Weide Metal Products Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2021-11-19
Anticipated expiration: 2041-09-06
Also published as: CN113458904A

Abstract

The invention discloses a welding seam polishing device, and belongs to the technical field of metal product grinding. The utility model provides a welding seam grinding device, includes grinding rack and handle, and grinding rack includes first arc frame of articulated and second arc frame, has all seted up the arc spout on first arc frame and the second arc frame, and slidable mounting has first arc piece and second arc piece on two arc spouts respectively, can connect into the slider that matches with ring shape spout through locking mechanism between first arc piece and the second arc piece, is provided with the subassembly of polishing that a plurality of is used for polishing the pipe welding seam on the slider. According to the invention, by arranging the parts such as the grinding frame, the arc-shaped sliding chute, the sliding block, the grinding assembly and the like which can be opened and closed, a user can carry out welding seam grinding treatment on any section of pipe body of the multi-bend circular pipe which is welded into the frame by holding the grinding device by the handle, and can carry out surrounding type grinding treatment on the welding seam, so that the grinding is rapid and sufficient, and the problem that the welding seam of the multi-bend circular pipe which is welded into the frame is inconvenient to grind at present is solved.

Description

Welding seam grinding device

Technical Field

The invention relates to a welding seam polishing device, and belongs to the technical field of metal product grinding.

Background

In the course of working at metal product, often need weld the metal, can leave the welding seam after the welding, in order to the pleasing to the eye of metal product, improve the roughness that sprays paint sometimes, need polish the processing to the welding seam. For the welding seam of the round pipe, especially the welding seam of the multi-bending round pipe, it is always difficult to polish, especially for the multi-bending round pipe which has been welded into the frame, it is difficult to polish the round pipe by using a polishing machine tool after the frame is welded. The traditional polishing mode is that workers generally hold an angle grinder to polish a welding seam, and due to manual operation polishing, the flatness and the attractiveness of polishing are difficult to ensure; some grinding devices to the multi-bending circular tube welding seam also appear in the prior art, but the problems of low degree of attachment of a grinding wheel and a circular tube and poor grinding effect exist, and the grinding wheel is difficult to be used on a welded multi-bending circular tube frame.

Disclosure of Invention

The invention provides a welding seam polishing device, which aims to solve the problems in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions.

A welding seam polishing device comprises a polishing frame and a handle, wherein the polishing frame comprises a first arc-shaped frame and a second arc-shaped frame which are hinged, air cylinders are arranged between hinged shafts of the first arc-shaped frame and the second arc-shaped frame and the handle, and connecting rods are hinged between the handle and the first arc-shaped frame and between the handle and the second arc-shaped frame; arc chutes are formed in the first arc-shaped frame and the second arc-shaped frame, the two arc chutes can be matched to form a circular chute, a first arc-shaped block and a second arc-shaped block are respectively mounted on the two arc chutes in a sliding manner, the first arc-shaped block and the second arc-shaped block can be connected through a locking mechanism to form a sliding block matched with the circular chute, a first gear is arranged on one side of the polishing frame, a first insection meshed with the first gear is arranged on the sliding block, and a motor used for driving the first gear to rotate is arranged on one side of the polishing frame; the polishing assembly comprises a polishing wheel and an adjusting mechanism used for adjusting the relative distance between the polishing wheel and the sliding block.

Specifically, adjustment mechanism is including setting up the fixing base on the slider, the interlude has the guide arm on the fixing base, the wheel of polishing can the pivoted install the one end that is close to the slider center at the guide arm, the fixed stop collar that has cup jointed on the guide arm between wheel of polishing and the fixing base, the adjusting collar has been cup jointed in the activity on the guide arm between stop collar and the fixing base, the spring has been cup jointed on the guide arm between adjusting collar and the stop collar, the screw rod parallel with the guide arm is installed to the screw thread on the fixing base, the one end and the adjusting collar of screw rod rotate to be connected.

Specifically, a connecting plate is arranged at one end, away from the polishing wheel, of the guide rod, a rotating shaft is rotatably mounted on the connecting plate, a second insection is arranged on the polishing frame, a second gear which can rotate and is meshed with the second insection is arranged on the fixed seat, and the second gear is matched with the rotating shaft through a spline; one end of the rotating shaft, which is far away from the connecting plate, is provided with a first bevel gear, the grinding wheel is provided with a coaxial second bevel gear, and the first bevel gear is meshed with the second bevel gear.

Specifically, the number of the locking mechanisms is two, the two locking mechanisms are respectively used for locking two end portions of the first arc-shaped block and the second arc-shaped block, one of the locking mechanisms comprises a first locking rod which can be rotatably installed on the second arc-shaped block, a first locking pin is arranged at the end portion of the first locking rod, a first limiting groove is formed in the first arc-shaped block, and the first locking pin can be matched with the first limiting groove.

Specifically, a second limiting groove is formed in the second arc-shaped frame, and the first locking pin can be matched with the second limiting groove; a second locking rod capable of rotating is arranged on the second arc-shaped frame, and a locking hook matched with the first locking pin is arranged at the end part of the second locking rod.

Specifically, the second arc-shaped frame is provided with a first positioning magnetic sheet and a second positioning magnetic sheet, and when the locking hook is separated from the first locking pin, the second locking rod is matched with the first positioning magnetic sheet; when the locking hook hooks the first locking pin, the second locking rod is matched with the second positioning magnetic sheet.

Compared with the prior art, the invention has the beneficial effects that: by arranging the handle, the cylinder, the connecting rod, the first arc-shaped frame and the second arc-shaped frame, the opening and closing of the first arc-shaped frame and the second arc-shaped frame can be controlled by using the cylinder, so that a multi-bent circular tube body welded into a frame can be clamped; by arranging the motor, the first gear, the arc-shaped chutes, the first arc-shaped block and the second arc-shaped block, when the first arc-shaped frame and the second arc-shaped frame are closed, the two arc-shaped chutes form the circular ring-shaped chute, at the moment, the sliding block formed by connecting the first arc-shaped block and the second arc-shaped block can rotate in the circular ring-shaped chute, and when the motor drives the first gear to rotate, the first gear drives the sliding block to rotate on the circular ring-shaped chute through meshing with the first insections, so that the polishing assembly is driven to surround the multi-bend circular tube body and perform polishing treatment; by arranging the adjusting mechanism, the extra height of the grinding wheel after the welding line is ground can be adjusted within a certain range.

Through setting up spring, spacing ring, adjusting collar and lead screw, when rotating the lead screw, can change the position of adjusting collar on the guide arm to influence the spring, make the spring change to the thrust size of spacing ring, change the contact distance of the round pipe of polishing wheel and treating promptly, not only make this grinding device deal with the pipe welding seam work of polishing of different pipe diameters, can play the effect of adjusting the welding seam allowance of polishing simultaneously.

Through setting up parts such as even board, rotation axis, second insection, second gear, when the slider was at the circular ring shape spout internal rotation, under the cooperation of second insection and second gear, the rotation will take place for the second gear, because through spline fit between second gear and the rotation axis, the rotation axis will take place to rotate this moment to drive the grinding wheel through the cooperation of first bevel gear and second bevel gear and rotate, make the grinding wheel can rotate the grinding welding seam.

Drawings

Fig. 1 is a schematic view of the overall structure of the closed state of the present invention.

Fig. 2 is a schematic view of the overall structure of the expanded state of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a partially enlarged view of fig. 2 at B.

Fig. 5 is a partially enlarged view of C in fig. 2.

In the figure: 1. the grinding rack comprises a grinding rack body 11, a first arc-shaped rack body 12, a second arc-shaped rack body 13, second gear marks 2, a sliding block 21, first gear marks 22, a first arc-shaped block 23, a second arc-shaped block 3, a first gear 4, a motor 5, a grinding assembly 51, a fixing seat 52, a guide rod 521, a limiting ring 522, an adjusting sleeve 523, a spring 53, a grinding wheel 54, a screw rod 55, a connecting plate 56, a rotating shaft 57, a second gear 58, a first bevel gear 59, a second bevel gear 6, a locking mechanism 61, a first locking rod 611, a first locking pin 62, a first limiting groove 621, a second limiting groove 63, a second locking rod 631, a locking hook 64, a first positioning magnetic sheet 65, a second positioning magnetic sheet 7, a handle 8, a cylinder 9 and a connecting rod.

Detailed Description

The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, a welding seam polishing device provided by an embodiment of the present invention includes a polishing frame 1 and a handle 7, the polishing frame 1 includes a first arc frame 11 and a second arc frame 12 which are hinged, a cylinder 8 is disposed between a hinge shaft of the first arc frame 11 and the second arc frame 12 and the handle 7, and a connecting rod 9 is hinged between the handle 7 and the first arc frame 11 and between the handle 7 and the second arc frame 12, so that when the cylinder 8 pushes the hinge shaft, the first arc frame 11 and the second arc frame 12 can be opened, and when the cylinder 8 pulls the hinge shaft, the first arc frame 11 and the second arc frame 12 can be closed; arc chutes are respectively formed in the first arc-shaped frame 11 and the second arc-shaped frame 12, the two arc chutes can be matched to form a circular chute, a first arc-shaped block 22 and a second arc-shaped block 23 are respectively mounted on the two arc chutes in a sliding manner, the first arc-shaped block 22 and the second arc-shaped block 23 can be connected through a locking mechanism 6 to form a sliding block 2 matched with the circular chute, a first gear 3 is arranged on one side of the polishing frame 1, a first insection 21 meshed with the first gear 3 is arranged on the sliding block 2, and a motor 4 used for driving the first gear 3 to rotate is arranged on one side of the polishing frame 1; the slider 2 is provided with a plurality of grinding assembly 5 for grinding the circular tube weld joint, and the grinding assembly 5 comprises a grinding wheel 53 and an adjusting mechanism for adjusting the relative distance between the grinding wheel 53 and the slider 2. By arranging the handle 7, the cylinder 8, the connecting rod 9, the first arc-shaped frame 11 and the second arc-shaped frame 12, the cylinder 8 can be used for controlling the opening and closing of the first arc-shaped frame 11 and the second arc-shaped frame 12, so that a multi-bend circular tube body welded into a frame can be clamped; by arranging the motor 4, the first gear 3, the arc chutes, the first arc block 22 and the second arc block 23, when the first arc frame 11 and the second arc frame 12 are closed, the two arc chutes form the circular chute, at the moment, the sliding block 2 formed by connecting the first arc block 22 and the second arc block 23 can rotate in the circular chute, when the motor 4 drives the first gear 3 to rotate, the first gear 3 drives the sliding block 2 to rotate on the circular chute through meshing with the first insections 21, so that the polishing assembly 5 is driven to surround the multi-bend circular pipe body and perform polishing treatment; by arranging the adjusting mechanism, the extra height of the polishing wheel 53 after the welding line is polished can be adjusted within a certain range; through setting up parts such as the frame of polishing 1 that can open and shut, convex spout, slider 2 and the subassembly 5 of polishing, realized polishing to many curved pipe welding seams, the processing of polishing is carried out to arbitrary section body of many curved pipe that has welded into the frame to this grinding device of user's accessible handle 7 handheld to can carry out the surrounding type to the welding seam and polish the processing, polish fast and abundant, solved the difficult problem that present inconvenience was polished to the many curved pipe welding seams that weld into the frame.

Specifically, the adjusting mechanism includes a fixed seat 51 disposed on the slider 2, a guide rod 52 is inserted in the fixed seat 51 in a penetrating manner, the polishing wheel 53 can be rotatably mounted at one end of the guide rod 52 close to the center of the slider 2, a limit ring 521 is fixedly sleeved on the guide rod 52 between the polishing wheel 53 and the fixed seat 51, an adjusting sleeve 522 is movably sleeved on the guide rod 52 between the limit ring 521 and the fixed seat 51, a spring 523 is sleeved on the guide rod 52 between the adjusting sleeve 522 and the limit ring 521, a screw 54 parallel to the guide rod 52 is mounted on the fixed seat 51 in a threaded manner, and one end of the screw 54 is rotatably connected with the adjusting sleeve 522. It can be seen from fig. 5 that, through setting up spring 523, spacing ring 521, adjusting collar 522 and lead screw 54, when rotating lead screw 54, can change the position of adjusting collar 522 on guide arm 52 to influence spring 523, make spring 523 change to spacing ring 521's thrust size, change polishing wheel 53 promptly and the contact distance of waiting to polish the pipe, not only make this grinding device deal with the pipe welding seam work of polishing of different pipe diameters, can play the effect of adjusting the welding seam allowance of polishing simultaneously.

Specifically, a connecting plate 55 is arranged at one end, away from the polishing wheel 53, of the guide rod 52, a rotating shaft 56 is rotatably mounted on the connecting plate 55, the polishing frame 1 is provided with a second tooth pattern 13, a second gear 57 which can rotate and is meshed with the second tooth pattern 13 is arranged on the fixed seat 51, and the second gear 57 is in spline fit with the rotating shaft 56; the end of the rotating shaft 56 far away from the connecting plate 55 is provided with a first bevel gear 58, the grinding wheel 53 is provided with a coaxial second bevel gear 59, and the first bevel gear 58 is meshed with the second bevel gear 59. Through the arrangement of the connecting plate 55, the rotating shaft 56, the second gear 13, the second gear 57 and other components, when the slider 2 rotates in the circular-ring-shaped sliding groove, the second gear 57 rotates under the matching of the second gear 13 and the second gear 57, and the rotating shaft 56 rotates due to the spline fit between the second gear 57 and the rotating shaft 56, so that the grinding wheel 53 is driven to rotate through the matching of the first bevel gear 58 and the second bevel gear 59, and the grinding wheel 53 can rotatably grind a weld joint.

Specifically, the number of the locking mechanisms 6 is two, the two locking mechanisms 6 are respectively used for locking two ends of the first arc-shaped block 22 and the second arc-shaped block 23, one of the locking mechanisms 6 includes a first locking rod 61 rotatably mounted on the second arc-shaped block 23, a first locking pin 611 is arranged at an end of the first locking rod 61, a first limiting groove 62 is arranged on the first arc-shaped block 22, and the first locking pin 611 can be matched with the first limiting groove 62. As can be seen from fig. 1 to 4, the two locking mechanisms 6 are communicated in working principle, the two locking mechanisms 6 are respectively used for locking the tail of the first arc-shaped block 22 and the head of the second arc-shaped block 23, and the tail of the second arc-shaped block 23 and the head of the first arc-shaped block 22, so that the stable matching between the first gear 3 and the first insection 21 is ensured, and the first gear 3 can drive the sliding block 2 to continuously rotate in the circular sliding groove.

Specifically, a second limiting groove 621 is arranged on the second arc frame 12, and the first locking pin 611 can be matched with the second limiting groove 621; the second arc frame 12 is provided with a second locking rod 63 capable of rotating, and the end of the second locking rod 63 is provided with a locking hook 631 matched with the first locking pin 611. As shown in fig. 2, when the first arc frame 11 and the second arc frame 12 are opened, in order to prevent the first arc block 22 or the second arc block 23 from slipping off the arc chute, as shown in fig. 4, after the first locking pin 611 is engaged with the second limiting groove 621, the locking hook 631 is used to hook the first locking pin 611, so that the first locking pin 611 cannot be disengaged from the second limiting groove 621, and the function of fixing the position of the second arc block 23 in the arc chute is further performed.

Specifically, the second arc frame 12 is provided with a first positioning magnetic piece 64 and a second positioning magnetic piece 65, and when the locking hook 631 is disengaged from the first locking pin 611, the second locking rod 63 is engaged with the first positioning magnetic piece 64; when the locking hook 631 hooks the first locking pin 611, the second locking lever 63 is engaged with the second positioning magnetic piece 65. The first positioning magnetic sheet 64 and the second positioning magnetic sheet 65 are arranged, so that two states of the second locking rod 63 can be conveniently fixed, and the second locking rod 63 is prevented from being shaken when the polishing device polishes; the locking hook 631 is prevented from being unintentionally disengaged from the first locking pin 611.

During the use, the user can hand handle 7, uses cylinder 8 to make first arc frame 11 and second arc frame 12 open and aim at the many curved pipe sections of waiting to polish, then reuses cylinder 8, lets first arc frame 11 and second arc frame 12 closed, as shown in fig. 1, each subassembly 5 of polishing this moment will many curved pipe sections support at the centre. Starting motor 4, the first gear 3 of motor 4 drive rotates, and first gear 3 will drive the rotation of slider 2 on the ring shape spout through the meshing with first insection 21 to drive the processing of polishing of subassembly 5 around many curved pipe body and butt weld, the realization is to the processing of polishing of the many curved pipe welding seam of welding into the frame.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. The welding seam polishing device is characterized by comprising a polishing frame (1) and a handle (7), wherein the polishing frame (1) comprises a first arc-shaped frame (11) and a second arc-shaped frame (12) which are hinged, a cylinder (8) is arranged between a hinged shaft of the first arc-shaped frame (11) and the second arc-shaped frame (12) and the handle (7), and connecting rods (9) are hinged between the handle (7) and the first arc-shaped frame (11) and between the handle (7) and the second arc-shaped frame (12); arc-shaped sliding grooves are formed in the first arc-shaped frame (11) and the second arc-shaped frame (12), the two arc-shaped sliding grooves can be matched to form a circular sliding groove, a first arc-shaped block (22) and a second arc-shaped block (23) are respectively installed on the two arc-shaped sliding grooves in a sliding mode, the first arc-shaped block (22) and the second arc-shaped block (23) can be connected through a locking mechanism (6) to form a sliding block (2) matched with the circular sliding groove, a first gear (3) is arranged on one side of the polishing frame (1), first insections (21) meshed with the first gear (3) are arranged on the sliding block (2), and a motor (4) used for driving the first gear (3) to rotate is arranged on one side of the polishing frame (1); the polishing device is characterized in that a plurality of polishing assemblies (5) used for polishing circular tube welding seams are arranged on the sliding block (2), each polishing assembly (5) comprises a polishing wheel (53) and an adjusting mechanism used for adjusting the relative distance between the polishing wheel (53) and the sliding block (2), each adjusting mechanism comprises a fixing seat (51) arranged on the sliding block (2), a guide rod (52) is inserted into each fixing seat (51), the polishing wheel (53) can be rotatably arranged at one end, close to the center of the sliding block (2), of each guide rod (52), a limiting ring (521) is fixedly sleeved on each guide rod (52) between the polishing wheel (53) and each fixing seat (51), an adjusting sleeve (522) is movably sleeved on each guide rod (52) between each limiting ring (521) and each fixing seat (51), a spring (523) is sleeved on each guide rod (52) between each adjusting sleeve (522) and each limiting ring (521), a screw rod (54) parallel to the guide rod (52) is installed on the fixed seat (51) in a threaded manner, one end of the screw rod (54) is rotatably connected with the adjusting sleeve (522), a connecting plate (55) is arranged at one end, far away from the polishing wheel (53), of the guide rod (52), a rotating shaft (56) is rotatably installed on the connecting plate (55), a second insection (13) is arranged on the polishing frame (1), a second gear (57) which can rotate and is meshed with the second insection (13) is arranged on the fixed seat (51), and the second gear (57) is in spline fit with the rotating shaft (56); one end of the rotating shaft (56) far away from the connecting plate (55) is provided with a first bevel gear (58), the grinding wheel (53) is provided with a coaxial second bevel gear (59), and the first bevel gear (58) is meshed with the second bevel gear (59).

2. The weld grinding device according to claim 1, wherein the number of the locking mechanisms (6) is two, the two locking mechanisms (6) are respectively used for locking two ends of the first arc-shaped block (22) and the second arc-shaped block (23) which are matched with each other, one of the locking mechanisms (6) comprises a first locking rod (61) which is rotatably arranged on the second arc-shaped block (23), a first locking pin (611) is arranged at one end of the first locking rod (61), a first limiting groove (62) is arranged on the first arc-shaped block (22), and the first locking pin (611) can be matched with the first limiting groove (62).

3. The weld grinding device according to claim 2, wherein the second arc-shaped frame (12) is provided with a second limiting groove (621), and the first locking pin (611) can be matched with the second limiting groove (621); a second locking rod (63) capable of rotating is arranged on the second arc-shaped frame (12), and a locking hook (631) matched with the first locking pin (611) is arranged at the end part of the second locking rod (63).

4. A weld grinding apparatus according to claim 3, wherein the second arc-shaped frame (12) is provided with a first positioning magnetic piece (64) and a second positioning magnetic piece (65), and the second locking bar (63) is engaged with the first positioning magnetic piece (64) when the locking hook (631) is disengaged from the first locking pin (611); when the locking hook (631) hooks the first locking pin (611), the second locking rod (63) is matched with the second positioning magnetic sheet (65).