CN220073791U - Clamp for numerical control welding machine - Google Patents

Abstract

The utility model belongs to the technical field of welding, and particularly relates to a clamp for a numerical control welding machine, which comprises a rotating wheel, a steel pipe supporting piece arranged on the rotating wheel, a clamping piece arranged on the rotating wheel and matched with the steel pipe supporting piece to clamp a steel pipe, and a driving motor for driving the rotating wheel to rotate positively and negatively by 90 degrees. The clamp disclosed by the utility model realizes clamping and fixing when welding long steel pipes with smaller diameters, ensures the stability in the welding process of the steel pipes, and can rotate by 90 degrees, so that the clamp can be suitable for welding two oppositely arranged double welding guns, the welding efficiency is improved, and the deviation in the welding process is reduced.

Description

Clamp for numerical control welding machine

Technical Field

The utility model belongs to the technical field of welding, and particularly relates to a clamp for a numerical control welding machine.

Background

At present, manual welding and automatic welding are mainly adopted, and compared with numerical control automatic welding, the numerical control automatic welding machine has the advantages of good welding flatness, high welding efficiency and low risk coefficient in the welding process, so that the numerical control automatic welding machine is widely applied gradually. However, the existing automatic numerical control welding machine has obvious defects in the process of welding alloy steel, such as low welding efficiency of a single welding gun in the process of welding steel pipes, long welding time and larger welding line; meanwhile, in the process of welding the steel pipes, the single welding gun needs to rotate 360 degrees to realize comprehensive welding, but the welding mode is low in welding efficiency, and errors existing between two butted steel pipes can be increased in the welding process due to large rotation ground angles.

However, if the rotation angle of the steel pipe is to be realized, and the welding is performed in a double welding gun mode, the existing steel pipe clamp in the market at present cannot meet the requirements of clamping the steel pipe and driving the steel pipe to rotate for a certain angle, and based on the requirements, the utility model provides a novel clamp capable of fixing the steel pipe and driving the steel pipe to rotate for a certain angle.

Disclosure of Invention

The utility model provides a clamp for a numerical control welding machine, which aims to overcome the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a fixture for numerical control welding machine, includes board, rotation wheel, locates steel pipe support piece on the rotation wheel, locate on the rotation wheel with the clamp of steel pipe support piece matched with in order to clamp the steel pipe and be used for driving rotation wheel positive and negative rotation 90 driving motor.

Optionally, the rotating wheel comprises two gear parts and an inner wheel part positioned in the middle of the two gear parts, the diameter of the inner wheel part is smaller than that of the gear parts, and the driving motor drives the gear parts to rotate through gears.

Optionally, the clamping piece is arranged on the inner wheel part, and the clamping piece comprises a clamping cylinder fixed on the inner wheel part, a clamping plate arranged on the clamping cylinder and a gasket fixedly connected on the clamping plate.

Optionally, the pad is provided with a non-slip protrusion.

Optionally, the steel pipe support comprises a bolt screwed on the inner wheel part and a steel pipe support block connected to the end of the bolt, and the steel pipe support block is associated with the clamping piece.

Optionally, the rotating wheel is rotatably fixed on the machine platform through two mounting frames.

Optionally, the left and right sides of rotation wheel is provided with circular shape recess rail respectively, rotationally be equipped with a plurality of inserts on the mounting bracket to in the recess rail, the pivot is along circumference range.

Optionally, an anti-slip pad is arranged on the supporting block.

Optionally, the anti-slip pad is provided with an anti-slip raised line.

In summary, the utility model has the following advantages:

1. the clamp disclosed by the utility model realizes clamping and fixing when welding long steel pipes with smaller diameters, ensures the stability in the welding process of the steel pipes, and can rotate by 90 degrees, so that the clamp can be suitable for welding two oppositely arranged double welding guns, the welding efficiency is improved, and the deviation in the welding process is reduced.

Drawings

Fig. 1 is a schematic perspective view of a jig for a numerical control welding machine according to the present utility model.

Fig. 2 is a combined view of a welding gun, a welding gun loosening assembly and a welding gun moving assembly of the fixture for the numerical control welding machine.

Fig. 3 is a perspective view of a gun welder loose assembly of the present utility model.

Fig. 4 is a perspective view of the clamp of the present utility model.

Fig. 5 is an exploded view of the clamp of the present utility model.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

The utility model discloses a numerical control alloy steel welding device which is used for fixedly welding an alloy steel pipe, and the alloy steel pipe only needs to be rotated by 90 degrees in the welding process.

Specifically, referring to fig. 1-5, the digitally controlled alloy steel welding device includes a machine 10, a welding gun 20, a welding gun loosening assembly 30, a welding gun moving assembly 40 and a clamp 50, wherein the machine 10 is a metal machine, the machine 10 is used as a platform for welding alloy steel pipes, the machine 10 includes a support leg 11 and a table top 12, the table top 12 is a metal plate with a planar upper end surface, the support leg 11 is composed of four metal legs, and the four support legs 11 are connected with the bottom of the table top 12 through bolts, so as to support the table top 12. The welding gun 20 and the steel pipe fixing assembly are both arranged on the table top 12.

Specifically, the table top 12 is provided with a base 13, the base 13 is a metal member of an inverted T-shaped structure, and the base 13 is fixed to one side of the table top 12 by bolts. The welding gun moving assembly 40 is arranged on the base 13, and the welding gun moving assembly 40 is used for driving the welding gun 20 to move back and forth along the width direction of the table top 12, so that the welding gun 20 can weld round alloy steel pipes, square alloy steel pipes can be welded to a certain extent, and the diversity of automatic welding of the alloy steel pipes is improved.

Specifically, the welding gun moving assembly 40 includes a guide rail 41, a screw rod 42, a moving seat 43, and a servo motor 44, wherein the guide rail 41 is a metal rail, the guide rail 41 is a metal guide rail 41 with a T-shaped cross section, one end of the guide rail 41 is fixed on the base 13, and the other end of the guide rail 41 is in a suspended state. The movable seat 43 is movably arranged on the guide rail 41, the movable seat 43 is a metal seat with a concave section, a threaded hole with threads on the inner wall is arranged on the movable seat 43, the screw rod 42 is in threaded connection with the movable seat 43, the front end and the rear end of the screw rod 42 are respectively fixed at the two ends of the guide rail 41 through bearings, the servo motor 44 is used for driving the screw rod 42 to rotate, and the screw rod 42 is fixed on the base 13.

Further, the welding gun loosening assembly 30 includes a bracket 31, an air cylinder 32, and a fixing structure, wherein the bracket 31 is a C-shaped metal frame, the bracket 31 is fixed on the movable seat 43 by a bolt, the movable seat 43 is provided with a groove, a bump is disposed at a middle position of the bracket 31, and when the movable seat 43 is fixed, the bump is embedded into the groove and then fixed by the bolt. Two oppositely arranged air cylinders 32 are fixedly connected to the two end positions of the bracket 31 through bolts, and a welding gun 20 fixing structure is respectively connected to the end position of a movable shaft of each air cylinder 32. Therefore, the welding gun 20 can be directly fixed on the welding gun 20 fixing structure, and when the alloy steel pipe is welded, the two cylinders 32 synchronously drive the welding gun 20 to perform opposite movement, so that the welding gun 20 is in contact with the alloy steel pipe, and the alloy steel pipe is further fixed.

Specifically, the fixing structure includes a connection block 331, a telescopic rod 332, an elastic member 333, and a fixing member 334, where the connection block 331 is a metal block, the connection block 331 is connected to the movable shaft of the cylinder 32, one end of the telescopic rod 332 is connected to the connection block 331, the other end is connected to the fixing member 334, and the elastic member 333 is sleeved on the telescopic rod 332; the elastic piece 333 is a spring, the fixing piece 334 is a metal piece, the fixing piece 334 is a metal clip, the welding gun 20 is clipped on the fixing piece 334, and by the arrangement, when the welding gun 20 welds an alloy steel pipe, the welding gun 20 is tightly contacted with the alloy steel pipe, and the welding is tight.

The clamp 50 is used for clamping the steel pipe, and the clamp 50 can carry the alloy steel pipe to rotate 90 degrees after clamping the steel pipe, so that the steel pipe can be welded comprehensively. Specifically, the fixture 50 includes a rotating wheel 51, a steel pipe supporting member 52, a clamping member 53, and a driving motor 55, wherein the rotating wheel 51 is a metal wheel, the rotating wheel 51 is shaped like a hub, a ring at a middle portion thereof is concave inward, two sides near an edge are convex outward, a convex portion thereof is a gear portion 511, a meshing tooth is provided on the gear portion 511, a concave portion of the rotating wheel 51 is an inner wheel portion 512, and a diameter of the inner wheel portion is smaller than a diameter of the gear portion; a plurality of steel pipe supporting members 52 are screw-coupled to the inner wheel portion 512 at equal intervals, the steel pipe supporting members 52 are used to support the steel pipe, and the steel pipe is clamped by the clamping members 53 to prevent the steel pipe from slipping during the rotation. The steel pipe support 52 comprises a bolt 521 screwed on the inner wheel 512 and a steel pipe support block 522 connected to the end of the bolt 521, the steel pipe support block 522 is a metal block, a rubber anti-slip pad 523 is adhered to the surface of the steel pipe support block 522, and the anti-slip pad 523 is made of rubber, so that the steel pipe can not slip during rotation, and unnecessary abrasion to the surface of the steel pipe can not be caused. The anti-slip pad 523 is formed with a strip-shaped anti-slip raised line 5231 at the anti-slip raised line, and the anti-slip raised line 5231 further ensures that the steel pipe does not slip.

The clamping member 53 includes a clamping cylinder 531, a clamping plate 532, and a spacer 533, wherein the clamping cylinder 531 is mounted and fixed to the inner wheel portion 512 with a central axis of the clamping cylinder 531 in a length direction thereof being parallel to the table top 12, and the clamping cylinder 531 rotates clockwise and rotates upward as the rotating wheel 51 rotates. The movable shaft of the clamping cylinder 531 is connected with the clamping plate 532, the structural shape of the clamping plate 532 is identical to that of the steel pipe support block 522, the gasket 533 is also rubber, and the surface of the gasket 533 is provided with a non-slip protrusion 5331. When the steel pipe is fixed, the steel pipe is clamped only by penetrating the steel pipe into the inner wheel and then the clamping piece 53 acts to be matched with the steel pipe supporting piece 52 to clamp the steel pipe.

Specifically, circular concave rails 5111 are provided on the left and right side walls of the gear portion 511, a mounting frame 54 is provided on the table top 12, a plurality of rotatable rotating shafts 542 are arranged on the mounting frame 54 at equal intervals on the connecting ring plates 541, the rotating shafts 542 are inserted into the concave rails 5111, and then the rotating wheels 51 are clamped by two groups of connecting ring plates 541, so that the rotating wheels 51 are suspended and can rotate. In addition, the driving motor 55 is a servo motor capable of rotating positively and negatively, the output shaft of the driving motor 54 is connected with a gear 551, the gear 551 is meshed with the meshing teeth on the gear portion 511 of the rotating wheel 51, and further the motor is driven to rotate the rotating wheel 51 by 90 degrees, and ninety degrees of rotation of the steel tube can be driven.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein, either as a result of the foregoing teachings or as a result of the knowledge or technology of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (9)

1. The fixture for the numerical control welding machine is characterized by comprising a machine table, a rotating wheel, a steel pipe supporting piece arranged on the rotating wheel, a clamping piece arranged on the rotating wheel and matched with the steel pipe supporting piece to clamp a steel pipe, and a driving motor for driving the rotating wheel to rotate positively and negatively by 90 degrees.

2. The jig for a numerical control welding machine according to claim 1, wherein the rotating wheel includes two gear portions and an inner wheel portion located in the middle of the two gear portions, the diameter of the inner wheel portion is smaller than that of the gear portions, and the driving motor drives the gear portions to rotate through gears.

3. The clamp for the numerical control welding machine according to claim 2, wherein the clamping piece is arranged on the inner wheel part and comprises a clamping cylinder fixed on the inner wheel part, a clamping plate arranged on the clamping cylinder and a gasket fixedly connected on the clamping plate.

4. A clamp for a numerical control welding machine according to claim 3, characterized in that the shims are provided with anti-slip protrusions.

5. The jig for a numerical control welding machine according to claim 2, wherein the steel pipe support member includes a bolt screwed to the inner wheel portion and a steel pipe support block connected to an end portion of the bolt, the steel pipe support block being associated with the clip member.

6. The fixture for a numerical control welding machine according to claim 1, wherein the rotating wheel is rotatably fixed to the machine table by two mounting frames.

7. The fixture for the numerical control welding machine according to claim 6, wherein circular concave rails are respectively arranged at the left side and the right side of the rotating wheel, a plurality of rotating shafts inserted into the concave rails are rotatably arranged on the mounting frame, and the rotating shafts are arranged along the circumference.

8. The fixture for a numerical control welding machine according to claim 5, wherein the support block is provided with an anti-slip pad.

9. The fixture for a numerical control welding machine according to claim 8, wherein the anti-slip mat is provided with anti-slip convex strips.