CN219881659U

CN219881659U - Boom welding tool

Info

Publication number: CN219881659U
Application number: CN202320674813.3U
Authority: CN
Inventors: 张伟; 王赫; 崔萌; 柴现杰; 程声焱; 石立宁
Original assignee: China Construction Machinery Co ltd
Current assignee: China Construction Machinery Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-10-24
Anticipated expiration: 2033-03-30

Abstract

The utility model provides a boom welding tool, which comprises a bottom plate, wherein a positioning seat for fixing a lower chord main limb is arranged at the top of the bottom plate of a second positioning seat, and wallboards for fixing an upper chord main limb are respectively arranged at two ends along a first direction; the positioning seat comprises a first locking seat and a second locking seat which are arranged along a second direction; the first locking seats and the second locking seats comprise a plurality of locking seats and are uniformly distributed along the first direction respectively; a first positioning seat and a second positioning seat are respectively arranged on one side of the two wallboards, which are close to each other; the first positioning seats and the second positioning seats comprise a plurality of positioning seats and are uniformly distributed along a third direction respectively; the first direction and the second direction are perpendicular to each other and the third direction is perpendicular to each other. According to the technical scheme, the first locking seat and the second locking seat are respectively arranged on the bottom plate along the first direction, so that two lower chord main limbs can be respectively positioned and fixed; and the first positioning seat and the second positioning seat can respectively position and fix the two ends of the upper chord main limb, so that the welding precision is effectively improved.

Description

Boom welding tool

Technical Field

The utility model relates to the technical field of engineering machinery processing equipment, in particular to a boom welding tool.

Background

The suspension arm is an important component of the tower crane, and the quality of the suspension arm is directly related to the safety and reliability of the crane; the suspension arm is used as an important stress component of the tower crane, and the structure of the suspension arm is important; the upper chord member and the lower chord member of the common flat-head boom are formed by welding square tubes or angle steel, the whole boom is of a triangular space truss structure, and the joints are connected by pin shafts, so that the assembly and the disassembly are convenient.

Because of its mechanical structure is simple, has decided its lower chord connected mode and tower cap formula inconsistent, does not have big round pin hub connection, leads to the postweld to warp greatly, and the section is connected the back, appears staggering the condition serious as bearing the lower chord upper plane of trolley track, and the both ends face of butt joint can't laminate completely, has not the gap of equidimension, can appear jumping and noise when the trolley moves the tie point, influences the complete machine stability.

The existing manufacturing process is mostly based on traditional manual lofting of welding, the precision of workpiece welding is guaranteed by using a positioning and clamping device, then the boom upper chord member and the boom lower chord member are welded together, and finally the boom is welded integrally; the mode has low precision and poor installation effect.

Disclosure of Invention

In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a boom welding fixture.

The utility model provides a boom welding tool, which comprises

The top of the bottom plate is provided with a positioning seat for fixing the lower chord main limb, and two ends along the first direction are respectively provided with a wallboard for fixing the upper chord main limb;

the positioning seat comprises a first locking seat and a second locking seat which are arranged along a second direction;

the first locking seats and the second locking seats comprise a plurality of locking seats and are uniformly distributed along the first direction respectively;

a first positioning seat and a second positioning seat are respectively arranged on one side, close to each other, of the two wallboards;

the first positioning seats and the second positioning seats comprise a plurality of positioning seats and are uniformly distributed along a third direction respectively;

the first direction, the second direction and the third direction are perpendicular to each other.

Further, the method comprises the steps of,

the first locking seat and the second locking seat have the same structure and both comprise a supporting block and a pressing block;

the support block is L-shaped and is fixedly arranged on the bottom plate, and the bending part is vertical to the bottom plate;

the pressing block is rotatably arranged on the bottom plate and positioned above the supporting block, and is used for pressing the lower chord main limb on the supporting block.

Further, the method comprises the steps of,

the bottom plate is provided with a hinged frame for installing the pressing block;

the hinge comprises two mounting plates which are parallel to each other;

the two mounting plates are vertically arranged on the bottom plate, and a hinge shaft for mounting the pressing block is arranged between the two mounting plates.

Further, the method comprises the steps of,

a clamping plate is fixedly arranged between the two mounting plates;

the clamping plate extends to the upper side of the pressing block, and a locking mechanism is arranged corresponding to the pressing block and used for limiting the pressing block to rotate relative to the hinge frame.

Further, the method comprises the steps of,

the locking mechanism comprises a nut fixedly arranged on the clamping plate;

the nut is provided with a matched bolt, and an included angle between the axis and the bottom plate is an acute angle;

and the end part of the bolt is provided with a pressing plate which is used for being in butt joint with the pressing block.

Further, the method comprises the steps of,

third positioning seats are respectively arranged at the two ends of the bottom plate corresponding to the lower chord main limbs;

the number of the third positioning seats is four;

the two third positioning seats are in a group, and the two groups of third positioning seats correspond to the first locking seat and the second locking seat respectively.

Further, the method comprises the steps of,

the first positioning seat and the second positioning seat have the same structure and both comprise mounting seats;

the mounting seat is U-shaped and is fixedly arranged on the wallboard, and the opening is positioned at one side far away from the wallboard;

a clamping connector capable of rotating relatively is arranged in the opening through a pin shaft;

the pin shaft is bridged in the opening, and the axial direction is parallel to the second direction;

the clamping head is sleeved on the pin shaft, and a matched clamping groove is formed in the end part corresponding to the upper chord main limb.

Further, the method comprises the steps of,

the bottom plate is also provided with a supporting mechanism corresponding to the wallboard;

the supporting mechanism comprises a supporting rod which is obliquely arranged;

the bracing piece is located two the wallboard is kept away from each other one side, both ends respectively with bottom plate and wallboard fixed connection.

The utility model has the advantages and positive effects that:

according to the technical scheme, the first locking seat and the second locking seat are respectively arranged on the bottom plate along the first direction, so that two lower chord main limbs can be respectively positioned and fixed; the first positioning seat and the second positioning seat which are arranged through the wallboard can respectively position and fix the two ends of the upper chord main limb; the upper chord main limb and the two lower chord main limbs are welded in a limited and fixed state respectively, so that the precision can be effectively improved, the same size of the boom welded each time can be ensured, and the follow-up assembly is convenient; the number of the first positioning seats and the second positioning seats are multiple, and the first positioning seats and the second positioning seats are distributed along the vertical direction, so that the levelness of the upper chord main limb can be effectively adjusted by only adjusting the butt joint of the two ends of the upper chord main limb and the positioning seats with different heights; during complete production, the installation precision between two adjacent suspension arms can be ensured to be higher.

Drawings

Fig. 1 is a schematic structural diagram of a boom welding tool according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a locking seat of a boom welding tool according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a positioning seat of a boom welding tool according to an embodiment of the present utility model.

The text labels in the figures are expressed as: 100-a bottom plate; 110-a first locking seat; 120-a second locking seat; 130-supporting blocks; 140-briquetting; 150-hinging frame; 151-clamping plates; 160-nuts; 161-bolts; 162-platen; 170-a third positioning seat; 180-supporting rods; 200-wallboard; 210-a first positioning seat; 220-a second positioning seat; 230-mounting base; 231-pin shaft; 232-clamping joint; 300-upper chord main limb; 310-first lower chord main limb; 320-second lower chord main limb.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

Referring to fig. 1-3, the present embodiment provides a boom welding tool, including a base plate 100, wherein a positioning seat for fixing a lower chord main limb is arranged at the top of the base plate 100, and wallboards 200 for fixing an upper chord main limb 300 are respectively arranged at two ends along a first direction; the positioning seat comprises a first locking seat 110 and a second locking seat 120 which are arranged along a second direction; the first locking seat 110 and the second locking seat 120 each comprise a plurality of locking seats and are uniformly distributed along the first direction; a first positioning seat 210 and a second positioning seat 220 are respectively arranged on one side, close to each other, of the two wallboards 200; the first positioning seat 210 and the second positioning seat 220 each include a plurality of positioning seats and are uniformly arranged along the third direction respectively; the first direction and the second direction are perpendicular to each other and the third direction is perpendicular to each other.

In this embodiment, the first main limb 310 and the second lower chord main limb 320 can be fixed on the base plate 100 by installing the first locking seat 110 and the second locking seat 120; the upper chord main limb 300 can be positioned and fixed by installing the first positioning seat 210 and the second positioning seat 220 on the wall plate 200.

In this embodiment, the first locking seat 110 and the second locking seat 120 are arranged along the second direction and are respectively located at two sides of the upper chord main limb 300, so that a triangle structure is formed between the second lower chord main limb 320 and the third lower chord main limb 330 and the upper chord main limb 300.

In this embodiment, the number of the first locking seats 110 and the second locking seats 120 is plural, and the first locking seats and the second locking seats are respectively arranged along the first direction; the first direction is the same as the axis direction of the upper chord main limb 300, so that the lower chord main limb can be fixed in a multi-section manner along the axis direction, the stability of the lower chord main limb is effectively improved, and the stability of welding the suspension arm is improved by phase change.

In the present embodiment, the number of the first positioning seats 210 and the second positioning seats 220 is plural, and the first positioning seats and the second positioning seats are arranged along the third direction; the third direction is perpendicular to the bottom plate 100, and the levelness of the upper chord main limb 300 can be effectively changed by respectively mounting the two ends of the upper chord main limb 300 on different first positioning seats 210 and second positioning seats 220, so that the welding of different types of suspension arms can be applied.

In a preferred embodiment, the first locking seat 110 and the second locking seat 120 have the same structure, and each of them includes a supporting block 130 and a pressing block 140; the support block 130 is L-shaped and is fixedly arranged on the bottom plate 100, and the bending part is vertical to the bottom plate 100; the pressing block 140 is rotatably installed on the base plate 100 and located above the supporting block 130, and is used for pressing the lower chord main limb on the supporting block 130.

In this embodiment, the first locking seat 110 and the second locking seat 120 are identical in structure, but are opposite in installation direction, so that the operation positions are located at the sides far away from each other, thereby facilitating the operation.

In this embodiment, the first locking seat 110 and the second locking seat 120 each include a supporting block 130 and a pressing block 140; wherein the support block 130 is relatively low and is relatively fixed with the base plate 100; the position of the pressing block 140 is relatively higher, and the pressing block 140 and the base plate 100 can rotate relatively, so as to press the lower chord main limb on the pressing block 140, thereby forming a fixed installation between the lower chord main limb and the base plate 100.

In a preferred embodiment, the base plate 100 is provided with a hinge bracket 150 for mounting the pressing block 140; the hinge bracket 150 includes two mounting plates parallel to each other; the two mounting plates are vertically mounted on the base plate 100 with a hinge shaft therebetween for mounting the pressing block 140.

In this embodiment, the pressing block 140 is connected to the base plate 100 through the hinge bracket 150; the hinge bracket 150 includes two mounting plates parallel to each other; the two mounting plates are respectively and vertically arranged on the bottom plate 100; one end of the pressing block 140 is positioned between the two mounting plates, is connected with the two mounting plates through a hinge shaft, and can rotate around the hinge shaft.

In this embodiment, the supporting block 130 is L-shaped, and one end of the bending is perpendicular to the bottom plate 100 and is located outside the hinge frame 150; one end of the supporting block 130, which is far away from the bending part, is positioned between the two mounting plates, so that a U-shaped groove matched with the section of the lower chord main limb is formed between the bending part and the mounting plates, and is used for forming radial limit on the lower chord main limb.

In a preferred embodiment, a clamping plate 151 is also fixedly mounted between the two mounting plates; the clamping plate 151 extends to the upper side of the pressing block 140, and a locking mechanism is provided corresponding to the pressing block 140 for limiting the pressing block 140 to rotate relative to the hinge frame 150.

In this embodiment, the hinge bracket 150 is further provided with a locking mechanism for limiting the rotation of the pressing block 140; the locking mechanism is positioned above the pressing block 140 and is connected with the hinge bracket 150 through the clamping plate 151; one end of the clamping plate 151 is connected with the locking mechanism, and the other end is positioned between the two mounting plates and fixedly connected with the two mounting plates.

In a preferred embodiment, the locking mechanism comprises a nut 160 fixedly mounted on the clamping plate 151; the nut 160 is provided with a matched bolt 161, and the included angle between the axis and the bottom plate 100 is an acute angle; a pressing plate 162 is mounted at an end of the bolt 161 for interfacing with the press block 140.

In this embodiment, the locking mechanism includes a mating nut 160 and bolt 161; wherein the nut 160 is fixedly installed on the clamping plate 151, and the axial direction is parallel to the plane where the second direction and the third direction are located; the bolt 161 is rotatably installed on the nut 160, and the end part can be in butt joint with the pressing block 140 through expansion and contraction, so that the pressing block 140 is pressed on the lower chord main limb, and the pressing block 140 is prevented from being reset and loosened.

In this embodiment, a pressing plate 162 is further mounted at one end of the bolt 161 near the pressing block 140; the pressing plate 162 is connected with the bolt 161 through a bearing, so that the pressing plate can rotate relative to the bolt 161 and cannot displace relative to the bolt 161, and the pressing plate can ensure that the angle of the bolt 161 is kept unchanged in the rotating process.

In a preferred embodiment, third positioning seats 170 are further provided on the bottom plate 100 at two ends corresponding to the lower chord main limbs respectively; the number of the third positioning seats 170 is four; the two third positioning seats 170 are a group, and the two groups of third positioning seats 170 respectively correspond to the first locking seat 110 and the second locking seat 120.

In this embodiment, two ends of the lower chord main limb are respectively limited by the third positioning seat 170; the number of third positioning seats 170 is four, two at both ends of the first lower chord main limb 310 and two at both ends of the second lower chord main limb 320.

In a preferred embodiment, the first positioning seat 210 and the second positioning seat 220 have the same structure and each includes a mounting seat 230; the mounting seat 230 is U-shaped and is fixedly arranged on the wallboard 200, and the opening is positioned at one side far away from the wallboard 200; a clamping connector 232 capable of rotating relatively is arranged in the opening through a pin shaft 231; the pin shaft 231 is bridged in the opening, and the axial direction is parallel to the second direction; the clamping connector 232 is sleeved on the pin shaft 231, and a matched clamping groove is formed at the end part corresponding to the upper chord main limb 300.

In this embodiment, the first positioning seat 210 and the second positioning seat 220 have the same structure and opposite installation directions, so that the two ends of the upper chord main limb 300 can be respectively clamped and limited; the first positioning seat 210 and the second positioning seat 220 respectively comprise a mounting seat 230; the mounting base 230 is U-shaped and fixedly mounted on the wall board 200, and is opened toward one side close to the upper chord main limb 300, and the inside is rotatably mounted with a clamping connector 232 for being in butt joint with the upper chord main limb 300.

In this embodiment, the opening side plates of the mounting seat 230 are arranged along the second direction, so as to ensure that the clamping connector 232 can swing up and down in the opening; the clamping connector 232 is connected with the mounting seat 230 through a pin shaft 231; both ends of the pin shaft 231 respectively penetrate through the clamping connectors 232 and are connected with the opening side plates of the mounting seat 230.

In this embodiment, the clip 232 includes ribs arranged in the second direction and parallel to each other; the two rib plates are fixedly connected, and the end parts of the two rib plates are respectively provided with matched U-shaped clamping grooves corresponding to the upper chord main limbs 300.

In a preferred embodiment, the bottom plate 100 is further provided with a supporting mechanism corresponding to the wallboard 200; the support mechanism includes a support bar 180 mounted obliquely; the supporting rod 180 is located at one side of the two wallboards 200 far away from each other, and two ends of the supporting rod are fixedly connected with the bottom board 100 and the wallboards 200 respectively.

In this embodiment, the wall plate 200 is vertically installed on the bottom plate 100, and is supported and stabilized by the support rods 180 which are obliquely arranged; the support bar 180 is located at one end of the two wallboards 200 away from each other, one end is fixedly mounted on the wallboards 200, and one end is fixedly mounted on the bottom board 100.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.

Claims

1. The utility model provides a davit welding frock which characterized in that includes

The bottom plate (100), the top of the bottom plate (100) is provided with a positioning seat for fixing the lower chord main limb, and two ends along the first direction are respectively provided with a wallboard (200) for fixing the upper chord main limb (300);

the positioning seat comprises a first locking seat (110) and a second locking seat (120) which are arranged along a second direction;

the first locking seat (110) and the second locking seat (120) comprise a plurality of locking seats and are uniformly distributed along the first direction respectively;

a first positioning seat (210) and a second positioning seat (220) are respectively arranged on one side, close to each other, of the two wallboards (200);

the first positioning seat (210) and the second positioning seat (220) comprise a plurality of positioning seats and are uniformly distributed along a third direction respectively;

2. The boom welding fixture according to claim 1, wherein,

the first locking seat (110) and the second locking seat (120) have the same structure and both comprise a supporting block (130) and a pressing block (140);

the supporting block (130) is L-shaped and is fixedly arranged on the bottom plate (100), and the bending part is vertical to the bottom plate (100);

the pressing block (140) is rotatably arranged on the bottom plate (100) and is positioned above the supporting block (130) and used for pressing the lower chord main limb on the supporting block (130).

3. The boom welding fixture according to claim 2, wherein,

the bottom plate (100) is provided with a hinged frame (150) for installing the pressing block (140);

the articulated frame (150) comprises two mounting plates parallel to each other;

the two mounting plates are vertically arranged on the bottom plate (100), and a hinge shaft for mounting the pressing block (140) is arranged between the two mounting plates.

4. The boom welding fixture according to claim 3, wherein,

a clamping plate (151) is fixedly arranged between the two mounting plates;

the clamping plate (151) extends to the upper portion of the pressing block (140), and a locking mechanism is arranged corresponding to the pressing block (140) and used for limiting the pressing block (140) to rotate relative to the hinge frame (150).

5. The boom welding fixture according to claim 4, wherein,

the locking mechanism comprises a nut (160) fixedly arranged on the clamping plate (151);

the nut (160) is provided with a matched bolt (161), and an included angle between the axis and the bottom plate (100) is an acute angle;

a pressing plate (162) is mounted at the end of the bolt (161) and is used for being in butt joint with the pressing block (140).

6. The boom welding fixture according to claim 1, wherein,

third positioning seats (170) are respectively arranged at the two ends of the bottom plate (100) corresponding to the lower chord main limbs;

the number of the third positioning seats (170) is four;

the two third positioning seats (170) are in one group, and the two groups of third positioning seats (170) respectively correspond to the first locking seat (110) and the second locking seat (120).

7. The boom welding fixture according to claim 1, wherein,

the first positioning seat (210) and the second positioning seat (220) have the same structure and both comprise mounting seats (230);

the mounting seat (230) is U-shaped and is fixedly arranged on the wallboard (200), and the opening is positioned at one side far away from the wallboard (200);

a clamping connector (232) capable of rotating relatively is arranged in the opening through a pin shaft (231);

the pin shaft (231) is bridged in the opening, and the axial direction is parallel to the second direction;

the clamping connector (232) is sleeved on the pin shaft (231), and a matched clamping groove is formed in the end portion, corresponding to the upper chord main limb (300).

8. The boom welding fixture according to claim 1, wherein,

a supporting mechanism is arranged on the bottom plate (100) corresponding to the wallboard (200);

the support mechanism comprises a support rod (180) which is obliquely arranged;

the support rods (180) are positioned on one sides of the two wallboards (200) which are far away from each other, and two ends of the support rods are fixedly connected with the bottom plate (100) and the wallboards (200) respectively.