CN220943906U - Welding fixture for roof steel bars - Google Patents

Abstract

The utility model relates to a welding fixture for a roof steel bar, which comprises a mounting table, a plurality of fixture clamps arranged on the mounting table, a welding bracket, 匚 type coamings arranged on the welding bracket, a limiting end plate locked on the 匚 type coamings through fastener sliding, and at least two lifting screw pairs arranged between the 匚 type coamings and the limiting end plate, wherein the mounting table is detachably connected to the welding bracket in a mode that the clamping surface is inclined relative to the horizontal plane. According to the utility model, the limiting end plate with the adjustable position is arranged, the auxiliary tool clamp is used for limiting the end part of the workpiece, the mounting table is inclined relative to the horizontal plane, so that the workpiece is convenient to clamp, and after the position of the limiting end plate is determined, the mounting precision of the workpiece is controlled by the components, so that the mounting positions of the workpiece tend to be consistent, and the welding seam positioning efficiency and the welding precision of a subsequent welding robot can be ensured.

Description

Welding fixture for roof steel bars

Technical Field

The utility model relates to the technical field of steel bar machining, in particular to a welding tool for a roof steel bar.

Background

The box girder is a kind of girder in bridge engineering, and is divided into a single box, a plurality of boxes and the like, wherein the inside of the box girder is hollow, and flanges are arranged on two sides of the upper part of the box girder, and the box girder is similar to the boxes, so that the name is obtained. The box girder of the reinforced concrete structure is divided into a prefabricated box girder and a cast-in-situ box girder. The box girder combined bridge girder erection machine prefabricated on the independent site can be erected after the lower engineering is completed, so that the engineering progress can be accelerated, and the construction period can be saved. At present, when the box girder steel bars are welded, the lap joint parts of the two ends of the steel bars are finished in advance, so that the axes of the two lap joint ends tend to be parallel, and then the lap joint parts of the workpieces are welded by adopting arc welding.

The Chinese patent with the authorized bulletin number of CN216633171U discloses a welding workbench for box girder top plate steel bars, which comprises an installation table and a plurality of tool clamps arranged on the installation table; the fixture comprises a plurality of positioning seats which are arranged in a straight line, at least two locking seats which are arranged in a staggered mode with the positioning seats, clamps which are arranged in a one-to-one correspondence mode with the locking seats, and a clamping device which is arranged between the two positioning seats and used for clamping a lap joint section of a workpiece. During welding, workpieces are inserted into the U-shaped openings of the positioning seats, one end of the workpiece lap joint part is abutted against the surface of one of the positioning seats, the straight section of the workpiece is lapped on the locking seat to finish positioning of the workpiece, then the clamping device is controlled to clamp the workpiece lap joint section, the clamp is controlled to clamp the straight section of the workpiece, clamping of the workpiece can be finished, and the welding robot is used for welding the workpiece lap joint part.

The prior art solutions described above have the following drawbacks: the welding workbench can clamp and fix two sides of the top plate steel bar only through the tool clamp, and the limit to the end part of the top plate steel bar is lacked, so that the installation accuracy of the top plate steel bar on the installation bench is greatly influenced by the technical level of workers.

Disclosure of utility model

The utility model aims to solve the problems of the prior art and provides a welding tool for a roof steel bar, which has the effects of improving the installation precision of a workpiece and ensuring the welding quality.

The above object of the present utility model is achieved by the following technical solutions:

The utility model provides a welding frock of roof reinforcing bar, includes the mount table and sets up a plurality of frock clamps on the mount table, still include the welding support, set up in 匚 type bounding wall on the welding support, slide through the fastener lock in spacing end plate on the 匚 type bounding wall, and at least two set up in lifting screw pair between 匚 type bounding wall and the spacing end plate, the mount table according to the mode of the relative horizontal plane slope of clamping face detachable connect in on the welding support, just the bottom of mount table passes clearance between welding support and the spacing end plate and peg graft conflict in on the 匚 type bounding wall, these frock clamps are followed spacing end plate's length direction is arranged side by side.

By adopting the technical scheme, before installation, the fastener is loosened according to the distance between the welding seam and the end part of the workpiece, and the limiting end plate is driven to move close to or away from the fixture through the lifting screw pair, and after adjustment is completed, the fastener is screwed, so that the limiting end plate is locked; during installation, the workpiece is firstly installed on the fixture in a lap joint mode, then the bottom end of the workpiece is moved to be abutted against the limiting end plate, and because the installation table is inclined relative to the horizontal plane, the workpiece can be kept in abutment with the fixture and the limiting end plate under the action of gravity, the workpiece is not required to be manually held and fixed, the workpiece is directly clamped and fixed through the fixture, the workpiece can be clamped, and then the welding robot is used for welding the lap joint part of the workpiece to obtain a roof steel bar; in addition, the bottom end of the mounting table is limited by 匚 type coaming and a limiting end plate and can be detached from the welding bracket after being separated from an opening of the 匚 type coaming, so that the mounting table with the corresponding tool clamp can be replaced according to the size specification of the top plate steel bar; in the process, the workpiece end part is limited by the aid of the auxiliary tool clamp through the limiting end plate with the adjustable position, the mounting table is inclined relative to the horizontal plane, the workpiece is clamped conveniently, after the position of the limiting end plate is determined, the mounting precision of the workpiece is controlled by the components, the workpiece mounting positions tend to be consistent, and then the welding seam positioning efficiency and the welding precision of a follow-up welding robot can be guaranteed.

The utility model is further provided with: the welding support comprises a bottom frame, a lifting frame arranged on one side of the bottom frame, a lap joint frame arranged between the other side of the bottom frame and the lifting frame and in an inverted V shape, and a plurality of inclined rods arranged on the lap joint frame in parallel, wherein the installation table is lapped on the lap joint frame and detachably connected to the inclined rods, and the 匚 -type coaming is arranged at the bottom of the lap joint frame.

By adopting the technical scheme, the whole welding bracket is approximately in a pentagon structure, and has good supporting stability under a smaller supporting volume.

The utility model is further provided with: the installation tables are provided with two symmetrically arranged on two sides of the lap joint frame, and 匚 coamings are arranged in one-to-one correspondence with the installation tables.

Through adopting above-mentioned technical scheme, the mount table position with raise frame one side is higher, is fit for the welding of the shorter roof reinforcing bar of length, and the position of opposite side mount table is higher, is fit for the longer roof reinforcing bar welding of length to make welding frock have better commonality.

The utility model is further provided with: the mounting table is provided with a plurality of L-shaped strips which are respectively hooked on the diagonal rods and can slide along the side surfaces of the diagonal rods to separate.

Through adopting the technical scheme, the bottom end of the mounting table is limited by the 匚 type coaming and the limiting end plate, and when the mounting table is dismounted, the mounting table can move reversely along the L-shaped strip opening after being separated upwards along the 匚 type coaming opening, so that the L-shaped strip slides to separate from the diagonal rod, and the mounting table with the corresponding tool clamp can be replaced according to the size specification of the top plate steel bar; during installation, the L-shaped strip is firstly hooked on the diagonal rod in a sliding manner, and then the installation table is moved downwards, so that the bottom end of the installation table passes through a gap between the limiting end plate and the lap joint frame and is spliced and abutted on the 匚 -shaped coaming, and the installation of the installation table on the welding bracket is completed.

The utility model is further provided with: the underframe is penetrated with a plurality of cross bars which are arranged in parallel, and the upper side surfaces of the cross bars are flush.

By adopting the technical scheme, unwelded semi-finished product steel bars and welded workpieces are convenient to place.

The utility model is further provided with: at least two strip-shaped grooves are respectively formed in two sides of the 匚 -shaped coaming, the fastener is slidably arranged on the strip-shaped grooves in a penetrating mode, at least four corresponding strips are arranged on the fastener, one end of the fastener is in threaded connection with the limiting end plate, and the other end of the fastener is tightly abutted to the surface of the 匚 -shaped coaming.

Through adopting above-mentioned technical scheme, the fastener specifically is the bolt, and it can be around the spacing end plate position of lifting screw pair regulation, through unscrewing or screw the fastener, realizes the removal and the locking of spacing end plate.

The utility model is further provided with: the lifting screw pair comprises a rotating seat arranged on the limiting end plate, a screw shaft which is rotationally connected to the rotating seat and penetrates through the bottom end of the 匚 -type coaming, and a transmission nut which is arranged on the 匚 -type coaming and is in threaded connection with the screw shaft.

Through adopting above-mentioned technical scheme, screw drive has that the starting torque is little, auto-lock is good advantage, can drive spacing end plate fixed point and remove, adjusts the distance between spacing end plate and the frock clamp according to the interval of the relative work piece tip of welding seam.

The utility model is further provided with: the lifting screw pair further comprises a holding part arranged on the screw shaft.

By adopting the technical scheme, the force application device is convenient for a user to grasp and apply force.

In summary, the beneficial technical effects of the utility model are as follows: through setting up the spacing end plate of position adjustable, auxiliary fixtures anchor clamps carry out work piece tip spacing, and the relative horizontal plane slope of mount table, the work piece clamping of being convenient for, after the position determination of spacing end plate, the installation accuracy of work piece is controlled by above-mentioned component for the work piece mounted position tends to unanimity, and then can guarantee follow-up welding robot's welding seam positioning efficiency and welding accuracy.

Drawings

Fig. 1 is a schematic perspective view of a welding tool for a roof reinforcement bar according to the present utility model.

Fig. 2 is a schematic right-side view of a welding tool for roof reinforcement bars according to the present utility model.

Fig. 3 is a schematic rear view of a partial structure of the welding tool for the roof reinforcement of the present utility model.

In the figure, 1, welding a bracket; 11. a chassis; 12. a cross bar; 13. raising the rack; 14. a lap joint frame; 15. a diagonal rod; 2. a mounting table; 21. an L-shaped strip; 3. a fixture clamp; 4.匚 type coaming; 41. a bar-shaped groove; 5. a limiting end plate; 6. a fastener; 7. lifting screw rod pairs; 71. a rotating seat; 72. a screw shaft; 73. a grip portion; 74. and (5) driving a nut.

Detailed Description

The utility model will be further described with reference to the drawings and detailed description in order to make the technical means, the creation characteristics, the achievement of the objects and the functions of the utility model more clear and easy to understand.

Referring to fig. 1, the welding fixture for the roof reinforcement disclosed by the utility model comprises a welding bracket 1, a mounting table 2 symmetrically arranged and detachably connected to the welding bracket 1, a plurality of fixture clamps 3 arranged on the mounting table 2, 匚 type coamings 4 arranged on the welding bracket 1 and sleeved at the bottom end of the mounting table 2 in a contact manner, limit end plates 5 locked on the 匚 type coamings 4 in a sliding manner through fasteners 6 and lapped on the surface of the mounting table 2, and at least two lifting screw pairs 7 arranged between the 匚 type coamings 4 and the limit end plates 5. The clamping surface of the mounting table 2 is inclined relative to the horizontal plane, and the tool clamps 3 are arranged in parallel along the length direction of the limiting end plate 5.

Referring to fig. 2, the welding bracket 1 includes a base frame 11, a plurality of cross bars 12 penetrating the base frame 11 and arranged in parallel, a lifting frame 13 provided at one side of the base frame 11, a bridging frame 14 provided between the other side of the base frame 11 and the lifting frame 13 and having an inverted V shape, and a plurality of diagonal bars 15 arranged in parallel on the bridging frame 14. The welding bracket 1 is approximately pentagonal in overall structure, can have good supporting stability under a small supporting volume, and in addition, the upper side surfaces of the cross bars 12 are flush, so that unwelded semi-product steel bars and welded workpieces can be conveniently placed. Correspondingly, the mounting table 2 is lapped on the lapping frame 14, a plurality of L-shaped strips 21 are arranged on the mounting table 2, the L-shaped strips 21 are respectively hooked on the diagonal rods 15 and can slide along the side surfaces of the diagonal rods 15 to be separated, and the 匚 -shaped coaming 4 is arranged at the bottom of the lapping frame 14.

The bottom end of the mounting table 2 is limited by the 匚 type coaming 4 and the limiting end plate 5, and when the mounting table is dismounted, the mounting table 2 can be reversely moved along the opening of the L-shaped strip 21 after being separated upwards along the opening of the 匚 type coaming 4, so that the L-shaped strip 21 slides to be separated from the inclined rod 15, and the mounting table 2 with the corresponding tool fixture 3 can be replaced according to the size specification of the top plate steel bar; during installation, the L-shaped strip 21 is firstly hooked on the inclined rod 15 in a sliding manner, and then the installation table 2 is moved downwards, so that the bottom end of the installation table 2 passes through a gap between the limiting end plate 5 and the lap joint frame 14 and is spliced and abutted on the 匚 -shaped coaming 4, and the installation of the installation table 2 on the welding bracket 1 is completed. When the workpiece is installed, the position of the installation table 2 with one side of the lifting frame 13 is higher, the welding of the top plate steel bars with shorter length is suitable, the position of the installation table 2 on the other side is higher, and the welding of the top plate steel bars with longer length is suitable, so that the welding tool has better universality.

Two strip-shaped grooves 41 are respectively formed in two sides of the 匚 -shaped coaming 4, the fastening pieces 6 are slidably arranged on the strip-shaped grooves 41 in a penetrating mode, four corresponding to the strip-shaped grooves are arranged, one ends of the fastening pieces 6 are connected to the limiting end plate 5 in a threaded mode, and the other ends of the fastening pieces are tightly abutted to the surface of the 匚 -shaped coaming 4. The fastener 6 is specifically a bolt, and can realize the movement and locking of the limiting end plate 5 by unscrewing or screwing the fastener 6 before and after the position of the limiting end plate 5 is adjusted by the lifting screw pair 7.

Referring to fig. 3, the lifting screw pair 7 includes a rotation seat 71 provided on the limiting end plate 5, a screw shaft 72 rotatably connected to the rotation seat 71 and penetrating through the bottom end of the 匚 -type coaming 4, a grip 73 provided on the screw shaft 72, and a drive nut 74 provided on the 匚 -type coaming 4 and screwed to the screw shaft 72. The screw rod transmission has the advantages of small starting moment and good self-locking, can drive the limiting end plate 5 to move at fixed points, and adjusts the distance between the limiting end plate 5 and the tool clamp 3 according to the distance between the welding line and the end part of the workpiece.

The implementation principle of the embodiment is as follows: before installation, the fastener 6 is loosened according to the distance between the welding seam and the end part of the workpiece, the limiting end plate 5 is driven to move close to or away from the tool fixture 3 through the lifting screw pair 7, and after adjustment is completed, the fastener 6 is screwed, so that locking of the limiting end plate 5 is completed. During installation, firstly, the workpiece is installed on the fixture 3 in a lap joint mode, then the bottom end of the workpiece is moved to abut against the limiting end plate 5, and because the installation table 2 is inclined relative to the horizontal plane, the workpiece can be kept in abutting connection with the fixture 3 and the limiting end plate 5 under the action of gravity, the workpiece is not required to be manually held and fixed, the fixture clamp of the workpiece can be directly used for clamping the workpiece through the fixture 3, and then the welding robot is used for welding the lap joint part of the workpiece, so that the roof steel bar is obtained. In addition, the bottom of the mounting table 2 is limited by the 匚 -type coaming 4 and the limiting end plate 5, and can be detached from the welding bracket 1 after being separated from the opening of the 匚 -type coaming 4, so that the mounting table 2 with the corresponding tool fixture 3 can be replaced according to the size specification of the top plate steel bars.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (8)

1. The utility model provides a welding frock of roof reinforcing bar, includes mount table (2), and sets up a plurality of frock clamp (3) on mount table (2), its characterized in that: still including welding support (1), set up in 匚 type bounding wall (4) on welding support (1), slide through fastener (6) lock in spacing end plate (5) on 匚 type bounding wall (4), and at least two set up in lift screw pair (7) between 匚 type bounding wall (4) and spacing end plate (5), mount table (2) according to the mode of clamping face relative horizontal plane slope detachable connect in on welding support (1), just the bottom of mount table (2) is passed clearance between welding support (1) and spacing end plate (5) and peg graft and contradict in on 匚 type bounding wall (4), these frock clamp (3) are followed the length direction of spacing end plate (5) is arranged side by side.

2. The welding fixture for roof reinforcement according to claim 1, wherein: the welding bracket (1) comprises a bottom frame (11), a lifting frame (13) arranged on one side of the bottom frame (11), a lapping frame (14) arranged between the other side of the bottom frame (11) and the lifting frame (13) and in an inverted V shape, and a plurality of inclined rods (15) arranged on the lapping frame (14) in parallel, wherein the mounting table (2) is lapped on the lapping frame (14) and detachably connected to the inclined rods (15), and the 匚 type coaming (4) is arranged at the bottom of the lapping frame (14).

3. The welding fixture for roof reinforcement according to claim 2, wherein: the installation tables (2) are provided with two symmetrically arranged on two sides of the lap joint frame (14), and 匚 type coamings (4) are arranged in one-to-one correspondence with the installation tables (2).

4. The welding fixture for roof reinforcement according to claim 2, wherein: the mounting table (2) is provided with a plurality of L-shaped strips (21), and the L-shaped strips (21) are respectively hooked on the inclined rod (15) and can slide along the side surface of the inclined rod (15) to separate.

5. The welding fixture for roof reinforcement according to claim 2, wherein: the underframe (11) is provided with a plurality of cross bars (12) in a penetrating way, and the upper side surfaces of the cross bars (12) are flush.

6. The welding fixture for roof reinforcement according to claim 1, wherein: at least two strip-shaped grooves (41) are respectively formed in two sides of the 匚 -shaped coaming (4), the fastening pieces (6) are slidably arranged on the strip-shaped grooves (41) in a penetrating mode, at least four corresponding strips are arranged on the fastening pieces, one ends of the fastening pieces (6) are in threaded connection with the limiting end plate (5), and the other ends of the fastening pieces tightly abut against the surface of the 匚 -shaped coaming (4).

7. The welding fixture for roof reinforcement according to claim 1, wherein: the lifting screw pair (7) comprises a rotating seat (71) arranged on the limiting end plate (5), a screw rod shaft (72) rotatably connected to the rotating seat (71) and penetrating through the bottom end of the 匚 -type coaming (4), and a transmission nut (74) arranged on the 匚 -type coaming (4) and connected to the screw rod shaft (72) in a threaded mode.

8. The welding fixture for roof reinforcement according to claim 7, wherein: the lifting screw pair (7) further comprises a holding part (73) arranged on the screw shaft (72).