CN215747355U - Welding rack for welded pipe unit - Google Patents

Abstract

The utility model discloses a welding rack for a welded pipe unit, which comprises a steel pipe and a welding handle, wherein the welding handle is arranged below the steel pipe, a moving device is arranged below the welding handle, the moving device comprises a motor, a first bevel gear, a second bevel gear, an annular rack, a sliding rod, a first nut, a second spring and a third spring, the first bevel gear is meshed with the second bevel gear, the first screw is connected with the second bevel gear in a sliding manner, and a bearing seat is connected with a supporting seat in a sliding manner. This a welding frame for welded tube unit, through the cooperation between motor, first bevel gear, bearing frame, pin rod, second spring and the third spring, when the weld handle collided to the left side third spring, the weld handle drove first nut, first screw rod and first annular rack right motion under the effect of third spring elasticity, and reciprocating motion welds the steel pipe about the weld handle, has solved the problem that can not the automatically move weld handle among the welding process.

Description

Welding rack for welded pipe unit

Technical Field

The utility model relates to the technical field of welding supports, in particular to a welding rack for a welded pipe unit.

Background

The welded steel pipe is also called as welded pipe, and is made by welding a steel plate or strip steel after being curled and formed, and is generally 6 meters in length. The welded steel tube production process is simple, the production efficiency is high, the variety and the specification are multiple, the equipment investment is low, but the general strength is lower than that of a seamless steel tube, although a welding rack of the welded tube unit in the prior art can provide support, a welding handle in the welding process cannot automatically reverse, steel tubes with different sizes cannot be clamped, and meanwhile, the height of the clamp cannot be adjusted according to the height of an operator.

Disclosure of Invention

The utility model aims to provide a welding rack for a welded pipe unit, which solves the problem that a welding handle cannot be automatically moved in the welding process in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a welding rack for a welded pipe unit comprises a steel pipe and a welding handle, wherein the welding handle is arranged below the steel pipe, and a moving device is arranged below the welding handle;

the moving device comprises a motor, a first bevel gear, a second bevel gear, a first annular rack, a sliding rod, a first nut, a first screw, a bearing seat, a pin rod, a second spring and a third spring;

the sliding rod is connected with the middle position of the welding handle in a sliding manner, two ends of the sliding rod are fixedly connected with the supporting seat, two third springs are sleeved at the left end and the right end of the outer wall of the sliding rod, one ends of the outer sides of the two third springs are fixedly connected with the supporting seat, the motor is fixedly connected inside the right side of the supporting seat, an output shaft of the motor is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the inner side of the second bevel gear is fixedly connected with a second annular rack, the second annular rack is meshed with the first annular rack, the first annular rack is fixedly connected on the surface of a first screw rod, the first screw rod is slidably connected with the second bevel gear, the first screw rod is rotatably connected with a bearing seat through a bearing, the bearing seat is slidably connected with the supporting seat, the pin rod is arranged inside the left side of the supporting seat, and one end of the pin rod is fixedly connected with a second spring, the two ends of the second spring are fixedly connected with the supporting seat and the pin rod respectively, the first screw rod is in threaded connection with the first nut, and the upper surface of the first nut is fixedly connected with the welding handle.

Preferably, a clamping device is arranged below the steel pipe;

the clamping device comprises a hydraulic cylinder, a bracket, a first supporting rod, a second supporting rod, a third supporting rod, a first spring and a clamping block;

two both ends about the upper surface of pneumatic cylinder rigid coupling at the supporting seat, the hydraulic stem of pneumatic cylinder puts to slide with the central point of support and links to each other, two the support rigid coupling is on the outside surface of supporting seat, the hydraulic stem of pneumatic cylinder links to each other through the round pin axle rotation with second branch, the other end of second branch links to each other through the round pin axle rotation with first branch, two first branch slides with the both ends of support and links to each other, the central point of third branch puts and rotates through the round pin axle with first branch is inside to link to each other, the both ends of first spring link to each other with first branch and third branch are fixed respectively, the top rigid coupling of third branch has the tight piece of clamp.

Preferably, a friction pad is fixed on the inner wall of the clamping block.

Preferably, a lifting device is arranged below the supporting seat;

the lifting device comprises a handle, a second screw rod, a second nut and a fourth supporting rod;

the upper side is that the fourth supporting rod is connected with the supporting seat through a pin shaft in a rotating mode, the lower side is that the fourth supporting rod is connected with the base through a pin shaft in a rotating mode, the two pin shafts on the right side are connected with the second nut through a rotating shaft in a rotating mode, the upper side and the lower side are movably connected through the pin shaft between the fourth supporting rods, the second nut is in threaded connection with the second screw, and the right end of the second screw is fixedly connected with a handle.

Preferably, the surface of the handle is wrapped with a rubber sleeve.

Compared with the prior art, the utility model has the beneficial effects that: according to the welding rack for the welded pipe unit, through the matching among the motor, the first bevel gear, the second bevel gear, the first annular rack, the sliding rod, the first nut, the first screw rod, the bearing seat, the pin rod, the second spring and the third spring, the output shaft of the motor drives the first bevel gear to rotate, when the welding handle collides with the third spring on the left side, the welding handle drives the first nut, the first screw rod and the first annular rack to move rightwards under the action of the elastic force of the third spring, the welding handle reciprocates leftwards and rightwards to weld a steel pipe, and the problem that the welding handle cannot automatically reverse in the welding process is solved;

through the cooperation among the hydraulic cylinder, the bracket, the first supporting rod, the second supporting rod, the third supporting rod, the first spring and the clamping blocks, the hydraulic cylinder is started to retract into the hydraulic rod, the hydraulic rod retracts to drive the second supporting rod to slide outwards, the second supporting rod drives the first supporting rod to move outwards, the first supporting rod drives the third supporting rod to move outwards, the third supporting rod drives the clamping blocks to move outwards, the clamping blocks are opened, the steel pipe is placed between the two clamping blocks, otherwise, the hydraulic cylinder drives the extending hydraulic rod to extend out, the clamping blocks clamp the steel pipe, and the problem that the steel pipes with different sizes cannot be clamped is solved;

through the handle, the second screw rod, cooperation between second nut and the fourth branch, if need adjust the supporting seat 6 when high according to operator's height, rotate handle 501, handle 501 drives second screw rod 502 and rotates, second screw rod 502 drives the motion of second nut 503, second nut 503 drives fourth branch 504 and rotates, fourth branch 504 rotates and makes supporting seat 6 up-and-down motion, stall handle 501 when adjusting suitable position, the problem of the height that can not adjust anchor clamps according to operator's height has been solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the connection of the hydraulic cylinder, the bracket and the first strut;

FIG. 3 is a schematic structural diagram of a joint of a bearing seat, a sliding rod and a first thread block;

fig. 4 is a schematic structural diagram of a joint of the motor, the first bevel gear and the first annular rack.

In the figure: 1. the steel pipe, 2, a welding handle, 3, a clamping device, 301, a hydraulic cylinder, 302, a support, 303, a first support rod, 304, a second support rod, 305, a third support rod, 306, a first spring, 307, a clamping block, 4, a moving device, 401, a motor, 402, a first bevel gear, 403, a second bevel gear, 404, a first annular rack, 405, a sliding rod, 406, a first nut, 407, a first screw rod, 408, a bearing seat, 409, a pin rod, 410, a second spring, 411, a third spring, 412, a second annular rack, 5, a lifting device, 501, a handle, 502, a second screw rod, 503, a second nut, 504, a fourth support rod, 6, a support seat, 7, a base, 8, a rubber sleeve, 9 and a friction pad.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a welding rack for a pipe welding unit comprises a steel pipe 1 and a welding handle 2, wherein the welding handle 2 is arranged below the steel pipe 1, the welding handle 2 is used for welding the steel pipe 1, a moving device 4 is arranged below the welding handle 2, the moving device 4 comprises a motor 401, a first bevel gear 402, a second bevel gear 403, a first annular rack 404, a sliding rod 405, a first nut 406, a first screw 407, a bearing seat 408, a pin 409, a second spring 410 and a third spring 411, the sliding rod 405 is connected with the middle position of the welding handle 2 in a sliding manner, the welding handle 405 can slide left and right on the sliding rod 405, two ends of the sliding rod 405 are fixedly connected with a supporting seat 6, two third springs 411 are sleeved at the left and right ends of the outer wall of the sliding rod 405, one end of the outer sides of the two third springs 411 is fixedly connected with the supporting seat 6, the motor 401 is fixedly connected inside the right side of the supporting seat 6, and the output shaft of the motor 401 is fixedly connected with the first bevel gear 402, an output shaft of the motor 401 drives the first bevel gear 402 to rotate, the first bevel gear 402 is meshed with the second bevel gear 403, a second annular rack 412 is fixedly connected to the inner side of the second bevel gear 403, the annular rack 412 and the second bevel gear 403 are integrated, the second annular rack 412 is meshed with the first annular rack 404, the first annular rack 404 is fixedly connected to the surface of the first screw 407, the first screw 407 is slidably connected to the second bevel gear 403, the first screw 407 can slide left and right in the second bevel gear 403, the first screw 407 is rotatably connected to the bearing seat 408 through a bearing, the bearing seat 408 is slidably connected to the support seat 6, the bearing seat 408 can slide left and right in the support seat 6, a pin 409 is arranged inside the left side of the support seat 6, a second spring 410 is fixedly connected to one end of the pin 409, two ends of the second spring 410 are respectively fixedly connected to the support seat 6 and the pin 409, and the pin 409 prevents the bearing seat 408 from rebounding during sliding, the first annular rack 404 and the second annular rack 412 are meshed and rotate, the first screw 407 is in threaded connection with the first nut 406, the first nut 406 rotates along with the first screw 407 to move left and right, the welding handle 2 is fixedly connected to the upper surface of the nut 406, and the welding handle 2 moves left and right along with the nut 406.

The lower part of the steel pipe 1 is provided with a clamping device 3, the clamping device 3 comprises a hydraulic cylinder 301, a bracket 302, a first supporting rod 303, a second supporting rod 304, a third supporting rod 305, a first spring 306 and a clamping block, the two hydraulic cylinders 301 are fixedly connected on the upper surface of the supporting seat 6, the two hydraulic cylinders 301 and the supporting seat 6 are kept as a whole, a hydraulic rod of the hydraulic cylinder 301 is connected with the bracket 302 in a sliding way, the two brackets 302 are fixedly connected on the outer side surface of the supporting seat 6, the hydraulic rod of the hydraulic cylinder 301 is connected with the second supporting rod 304 in a rotating way through a pin shaft, the hydraulic cylinder of the hydraulic cylinder 301 drives the second supporting rod 304 to move, the other end of the second supporting rod 304 is connected with the first supporting rod 303 in a rotating way through a pin shaft, the two first supporting rods 303 are connected with two ends of the bracket 302 in a sliding way, the central position of the third supporting rod 305 is connected with the inside of the first supporting rod 303 in a rotating way through a pin shaft, two ends of the first spring 306 are respectively fixedly connected with the first supporting rod 303 and the third supporting rod 305, the first spring 306 keeps the third strut 305 rotating within a certain range under the action of elastic force, a clamping block 307 is fixedly connected above the third strut 305, a friction pad 9 is fixedly connected to the inner wall of the clamping block 307, and the friction pad 9 can enable clamping to be firmer.

Lifting device 5 is arranged below supporting seat 6, lifting device 5 includes handle 501, second screw 502, second nut 503 and fourth branch 504, upper fourth branch 504 rotates with supporting seat 6 through the round pin axle and links to each other, lower fourth branch 504 rotates with base 7 through the round pin axle and links to each other, two round pin axles on the right side rotate with second nut 503 through the pivot and link to each other, two round pin axles on the right side follow second nut 503 and move left and right together, it links to each other through the round pin axle activity between the upper and lower fourth branch 504, second nut 503 and second screw 502 threaded connection, second nut 503 rotates left and right motion along with second screw 502, the right-hand member rigid coupling of second screw 502 has handle 501, handle 501 can make second screw 502 rotate, the surface parcel of handle 501 has rubber sleeve 8, rubber sleeve 8 can protect the friction of handle 501 and hand.

The working principle is as follows:

when welding is needed, the hydraulic cylinder 301 is started to retract the hydraulic rod, the hydraulic rod retracts to drive the second support rod 304 to slide outwards, the second support rod 304 drives the first support rod 303 to move outwards, the first support rod 303 drives the third support rod 305 to move outwards, the third support rod 305 drives the clamping block 307 to move outwards, the clamping block 307 is opened, the steel pipe 1 is placed between the two clamping blocks 307, otherwise, the hydraulic cylinder 301 drives the hydraulic rod to extend out, the clamping block 307 clamps the steel pipe 1, then if the height of the support seat 6 needs to be adjusted according to the height of an operator, the handle 501 is rotated, the handle 501 drives the second screw rod 502 to rotate, the second screw rod 502 drives the second nut 503 to move, the second nut drives the fourth support rod 504 to rotate, the fourth support rod 504 rotates to enable the support seat 6 to move up and down, when the support seat is adjusted to a proper position, the handle 501 stops rotating, then the motor 401 is started, the output shaft of the motor 401 drives the first bevel gear 402 to rotate, the first bevel gear 402 drives the second bevel gear 403 to rotate, the second bevel gear 403 drives the first screw 407 to rotate through the first annular rack 404 and the second annular rack 412, the first screw 407 drives the first nut 406 to move left and right, the first nut 406 drives the welding handle 2 to slide left and right, the welding handle 2 collides with the left third spring 411, when the third spring 411 is compressed to the limit position, the welding handle 2 cannot slide to the left, the welding handle 2 drives the first nut 406, the first screw 407 and the first annular rack 404 to move right under the action of elastic force of the third spring 411, the first annular rack 404 moves right and is meshed with the right second annular rack 412, the first screw 407 rotates along with the right second bevel gear 403, or vice versa, the first screw 407 rotates along with the left second bevel gear 403, and the welding handle 2 reciprocates left and right to weld the steel pipe 1.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a welding frame for welded tube unit, includes steel pipe (1) and welds handle (2), the below of steel pipe (1) is provided with welds handle (2), its characterized in that: a moving device (4) is arranged below the welding handle (2);

the moving device (4) comprises a motor (401), a first bevel gear (402), a second bevel gear (403), a first annular rack (404), a sliding rod (405), a first nut (406), a first screw (407), a bearing seat (408), a pin rod (409), a second spring (410) and a third spring (411);

the sliding rod (405) is connected with the middle position of the welding handle (2) in a sliding manner, two ends of the sliding rod (405) are fixedly connected with the supporting seat (6), two third springs (411) are sleeved at the left end and the right end of the outer wall of the sliding rod (405), one ends of the outer sides of the two third springs (411) are fixedly connected with the supporting seat (6), the motor (401) is fixedly connected inside the right side of the supporting seat (6), the output shaft of the motor (401) is fixedly connected with the first bevel gear (402), the first bevel gear (402) is meshed with the second bevel gear (403), the inner side of the second bevel gear (403) is fixedly connected with the second annular rack (412), the second annular rack (412) is meshed with the first annular rack (404), the first annular rack (404) is fixedly connected on the surface of the first screw (407), and the first screw (407) is connected with the second bevel gear (403) in a sliding manner, first screw rod (407) and bearing frame (408) are passed through the bearing and are rotated continuously, bearing frame (408) slide with supporting seat (6) and link to each other, pin rod (409) set up inside the left side of supporting seat (6), the one end rigid coupling of pin rod (409) has second spring (410), the both ends of second spring (410) are fixed continuous with supporting seat (6) and pin rod (409) respectively, first screw rod (407) and first nut (406) threaded connection, the upper surface rigid coupling of first nut (406) has and welds handle (2).

2. A welding stand for a tube welding unit according to claim 1, characterized in that: a clamping device (3) is arranged below the steel pipe (1);

the clamping device (3) comprises a hydraulic cylinder (301), a bracket (302), a first supporting rod (303), a second supporting rod (304), a third supporting rod (305), a first spring (306) and a clamping block (307);

two both ends about the upper surface of pneumatic cylinder (301) rigid coupling at supporting seat (6), the hydraulic stem of pneumatic cylinder (301) puts to slide with the central point of support (302) and links to each other, two the outside surface of support (302) rigid coupling at supporting seat (6), the hydraulic stem of pneumatic cylinder (301) links to each other through the round pin rotation with second branch (304), the other end and first branch (303) of second branch (304) rotate through the round pin axle and link to each other, two first branch (303) slide with the both ends of support (302) and link to each other, the central point of third branch (305) puts and rotates through the round pin axle with first branch (303) is inside to link to each other, the both ends of first spring (306) are fixed continuous with first branch (303) and third branch (305) respectively, the top rigid coupling of third branch (305) has and presss from both sides tight piece (307).

3. A welding stand for a tube welding unit according to claim 2, characterized in that: the inner wall of the clamping block (307) is fixedly connected with a friction pad (9).

4. A welding stand for a tube welding unit according to claim 1, characterized in that: a lifting device (5) is arranged below the supporting seat (6);

the lifting device (5) comprises a handle (501), a second screw (502), a second nut (503) and a fourth support rod (504);

the upper side fourth branch (504) and supporting seat (6) are rotated through the round pin axle and are linked to each other, the below fourth branch (504) and base (7) are rotated through the round pin axle and are linked to each other, and the right side is two fourth branch (504) are rotated junction and are rotated through the pivot with second nut (503) and are linked to each other, from top to bottom link to each other through the round pin axle activity between fourth branch (504), second nut (503) and second screw rod (502) threaded connection, the right-hand member rigid coupling of second screw rod (502) has handle (501).

5. A welding stand for a tube welding unit according to claim 4, characterized in that: the surface of the handle (501) is wrapped with a rubber sleeve (8).

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