阅读说明：本技术 一种机架拼焊工装及拼焊方法 (Frame tailor-welding tool and tailor-welding method ) 是由 凤为金 韦朝坤 徐正祥 于 2021-08-04 设计创作，主要内容包括：本发明公开了一种机架拼焊工装,包括用于实现底架总成固定的定位底架和分别实现两侧架总成定位的侧架定位装置,侧架定位装置包括与定位底架固定安装的内限位架、分别安装于内限位架两侧并分别向定位底架两外侧面垂直伸出的两内支撑机构和分别固定于定位底架两侧并分别与两内支撑机构相对的两外夹紧机构；定位底架一端设置有用于实现机架侧架端部定位的端部限位机构；本发明机架拼焊工装及拼焊方法,解决现有技术中存在的问题,确保焊接后的机架上侧架平行度好,误差小,机架纵向轴线垂直度误差小,机架上各个动力部件或传动部件等在工作中不易发生跑偏现象。(The invention discloses a frame tailor-welding tool, which comprises a positioning underframe for fixing an underframe assembly and a side frame positioning device for respectively positioning two side frame assemblies, wherein the side frame positioning device comprises an inner limiting frame fixedly installed with the positioning underframe, two inner support mechanisms respectively installed at two sides of the inner limiting frame and respectively vertically extending towards two outer side surfaces of the positioning underframe, and two outer clamping mechanisms respectively fixed at two sides of the positioning underframe and respectively opposite to the two inner support mechanisms; one end of the positioning underframe is provided with an end limiting mechanism for realizing positioning of the end part of the side frame of the rack; the frame tailor-welding tool and the tailor-welding method solve the problems in the prior art, ensure good parallelism and small error of the frame on the welded frame, ensure small verticality error of the longitudinal axis of the frame, and prevent deviation of each power component or transmission component on the frame during working.)

1. A frame tailor-welding tool is characterized by comprising a positioning underframe for fixing an underframe assembly and a side frame positioning device for respectively positioning two side frame assemblies, wherein the side frame positioning device comprises an inner limiting frame fixedly mounted with the positioning underframe, two inner support mechanisms respectively mounted at two sides of the inner limiting frame and respectively vertically extending towards two outer side surfaces of the positioning underframe, and two outer clamping mechanisms respectively fixed at two sides of the positioning underframe and respectively opposite to the two inner support mechanisms; and one end of the positioning underframe is provided with an end limiting mechanism for realizing positioning of the end part of the side frame of the rack.

2. The frame tailor welding tool according to claim 1, wherein said inner limiting frame comprises a first inner limiting frame and a second inner limiting frame, said first inner limiting frame and said second inner limiting frame being disposed apart from each other;

the inner support mechanism comprises a first inner limiting rod and a second inner limiting rod which are respectively arranged on the first inner limiting frame and the second inner limiting frame in a horizontal state, and the axes of the first inner limiting rod and the second inner limiting rod are perpendicular to the central axis of the positioning underframe;

the outer clamping mechanism comprises a first outer clamping rod and a second outer clamping rod, the two axes of the first outer clamping rod and the two axes of the second inner limiting rod coincide with the axes of the first inner limiting rod and the second inner limiting rod respectively, a first clamping rod mounting frame and a second outer clamping rod are connected to the first outer clamping rod and the second outer clamping rod respectively, and the first clamping rod mounting frame and the positioning underframe are fixedly mounted.

3. The frame tailor-welding tool according to claim 2, wherein a first threaded shaft sleeve and a second threaded shaft sleeve are respectively fixed on the first inner limiting frame and the second inner limiting frame, the first inner limiting rod and the second inner limiting rod are respectively penetrated by the first shaft sleeve and the second shaft sleeve, the first inner limiting rod and the second inner limiting rod respectively face the first outer clamping rod and the second outer clamping rod and are respectively connected with a top through threads, and the first inner limiting rod and the second inner limiting rod are far away from the top and are respectively fixed with a rotating handle.

4. The frame tailor-welding tool according to claim 2, wherein a fixed threaded sleeve fixed with the clamping rod mounting frame is respectively sleeved on the first outer clamping rod and the second outer clamping rod, a clamping head is respectively connected to two ends of the first outer clamping rod and the second outer clamping rod, which face to the first inner limiting rod and the second inner limiting rod, through threads, and a rotating handle is arranged at the other end of the first outer clamping rod and the second outer clamping rod.

5. The frame tailor-welding tool according to claim 2, wherein the end limiting mechanism comprises a positioning square steel fixed at one end of the positioning bottom frame and extending forward, the positioning square steel is in contact with the front end of the side frame assembly, the contact surface of the positioning square steel and the side frame assembly is a vertical plane, the positioning bottom frame is rectangular, and the first inner limiting frame and the second inner limiting frame are both rectangular frames.

6. A frame welding method is characterized in that welding is carried out according to the following steps,

firstly, respectively welding a bottom frame assembly and two side frame assemblies of a rack;

secondly, sequentially positioning the underframe assembly and the two side frame assemblies through a frame tailor-welding tool, wherein the two side frame assemblies are parallel to each other after being positioned, and the two side frame assemblies are respectively kept in a vertical state;

thirdly, respectively welding the two positioned side frame assemblies with the underframe assembly;

and fourthly, checking.

7. A frame tailor welding method according to claim 6, wherein said frame tailor welding tool is according to any one of claims 1 to 5.

8. The frame tailor welding method according to claim 7, wherein the method for positioning the underframe assembly and the two side frame assemblies by the frame tailor welding tool comprises the following steps:

s1, selecting a rack tailor-welding tool with a proper size according to the model and the size of the rack, placing the separately welded underframe assembly on a positioning underframe, and fixing the underframe assembly on the positioning underframe by using the self weight of the underframe assembly;

s2, adjusting the two inner support mechanisms to enable the vertically extending distances of the first inner limiting rods and the second inner limiting rods on the same inner support mechanism to be equal to each other, and meanwhile, ensuring that the distance between the first inner limiting rods and the distance between the second inner limiting rods is the distance between the two side frame assemblies;

s3, adjusting two outer clamping mechanisms, wherein the distance between the end parts of a first outer clamping rod and a second outer clamping rod on each outer clamping mechanism and the end parts of a first inner limiting rod and a second inner limiting rod on each outer clamping mechanism is slightly larger than the thickness of the side frame assembly;

s4, adjusting the first outer clamping rod and the second outer clamping rod to enable the side frame assembly to be clamped;

and S5, checking, detecting the parallelism between the two side frame assemblies and the perpendicularity between the two side frame assemblies and the bottom frame assembly, and performing welding operation after the parallelism and the perpendicularity between the two side frame assemblies and the bottom frame assembly are qualified.

Technical Field

The invention belongs to the field of frame assembly, and particularly relates to a frame tailor-welding tool and a tailor-welding method.

Background

The dry coal separator has a frame 9 m long, 2.5 m wide and a weight of more than 4 tons, and is provided with components such as a driving roller, a bend pulley, a lower carrier roller, a buffer carrier roller assembly, a receiver box and the like, wherein the components are required to be arranged to ensure parallelism among each other after being arranged, and the longitudinal axis of the frame is required to be ensured to be vertical, otherwise, the operation of the whole machine is influenced, so the labor intensity of the welding process of the frame assembly is high, and the precision required by design is difficult to ensure.

In the prior art, the welding process of the frame assembly is as follows: and after the components such as the driving roller, the direction-changing roller, the lower carrier roller, the buffer carrier roller component, the receiver box and the like are assembled, the phenomena of deflection and deviation are easy to occur in the operation process of each component.

In the prior art, not only a dry coal separator frame, but also most of frames are assembled by adopting the operation mode, so that the axis of the welded and assembled frame cannot be in a vertical state, the problems that side frames on two sides of the frame are not parallel and not perpendicular to an underframe and the like exist, and in welding, the operation is more complicated and the welding efficiency is low.

Disclosure of Invention

The invention aims to provide a frame welding tool and a welding method, which solve the problems in the prior art, ensure good parallelism and small error of a side frame on a welded frame, ensure small error of verticality of a longitudinal axis of the frame, and prevent various power components or transmission components and the like on the frame from deviating easily during working.

The invention provides a frame tailor-welding tool, which comprises a positioning underframe for fixing an underframe assembly and a side frame positioning device for respectively positioning two side frame assemblies, wherein the side frame positioning device comprises an inner limiting frame fixedly mounted with the positioning underframe, two inner support mechanisms respectively mounted at two sides of the inner limiting frame and respectively vertically extending towards two outer side surfaces of the positioning underframe, and two outer clamping mechanisms respectively fixed at two sides of the positioning underframe and respectively opposite to the two inner support mechanisms; and one end of the positioning underframe is provided with an end limiting mechanism for realizing positioning of the end part of the side frame of the rack.

Preferably, the inner limiting frame comprises a first inner limiting frame and a second inner limiting frame, and the first inner limiting frame and the second inner limiting frame are arranged separately;

the inner support mechanism comprises a first inner limiting rod and a second inner limiting rod which are respectively arranged on the first inner limiting frame and the second inner limiting frame in a horizontal state, and the axes of the first inner limiting rod and the second inner limiting rod are perpendicular to the central axis of the positioning underframe;

the outer clamping mechanism comprises a first outer clamping rod and a second outer clamping rod, the two axes of the first outer clamping rod and the two axes of the second inner limiting rod coincide with the axes of the first inner limiting rod and the second inner limiting rod respectively, a first clamping rod mounting frame and a second outer clamping rod are connected to the first outer clamping rod and the second outer clamping rod respectively, and the first clamping rod mounting frame and the positioning underframe are fixedly mounted.

Preferably, interior spacing frame one and interior spacing frame two are gone up and equally divide and do not be fixed with screw thread axle sleeve one and screw thread axle sleeve two, interior gag lever post one and interior gag lever post two pass by axle sleeve one and axle sleeve two respectively, interior gag lever post one and interior gag lever post two are equallyd divide towards outside clamping bar one and outer clamping bar two ends respectively and do not have the top through threaded connection, and interior gag lever post one and interior gag lever post two are kept away from the top end is equallyd divide and is fixed with twist grip respectively.

Preferably, the first outer clamping rod and the second outer clamping rod are respectively sleeved with a fixed threaded sleeve fixed with the clamping rod mounting frame, the first outer clamping rod and the second outer clamping rod are respectively connected with clamping heads towards the first inner limiting rod and the second inner limiting rod through threads, and rotating handles are arranged at the other ends of the first outer clamping rod and the second outer clamping rod.

Preferably, the end limiting mechanism comprises a positioning square steel fixed at one end of the positioning underframe and extending forwards, the positioning square steel is in contact with the front end of the side frame assembly, the contact surface of the positioning square steel and the side frame assembly is a vertical plane, the positioning underframe is rectangular, and the first inner limiting frame and the second inner limiting frame are rectangular frames.

A frame welding method comprises welding according to the following steps,

firstly, respectively welding a bottom frame assembly and two side frame assemblies of a rack;

secondly, sequentially positioning the underframe assembly and the two side frame assemblies through a frame tailor-welding tool, wherein the two side frame assemblies are parallel to each other after being positioned, and the two side frame assemblies are respectively kept in a vertical state;

thirdly, respectively welding the two positioned side frame assemblies with the underframe assembly;

and fourthly, checking.

Preferably, the frame tailor-welding tool is the frame tailor-welding tool.

Preferably, the method for positioning the underframe assembly and the two side frame assemblies by the frame tailor-welding tool comprises the following steps:

s1, selecting a rack tailor-welding tool with a proper size according to the model and the size of the rack, placing the separately welded underframe assembly on a positioning underframe, and fixing the underframe assembly on the positioning underframe by using the self weight of the underframe assembly;

s2, adjusting the two inner support mechanisms to enable the vertically extending distances of the first inner limiting rods and the second inner limiting rods on the same inner support mechanism to be equal to each other, and meanwhile, ensuring that the distance between the first inner limiting rods and the distance between the second inner limiting rods is the distance between the two side frame assemblies;

s3, adjusting two outer clamping mechanisms, wherein the distance between the end parts of a first outer clamping rod and a second outer clamping rod on each outer clamping mechanism and the end parts of a first inner limiting rod and a second inner limiting rod on each outer clamping mechanism is slightly larger than the thickness of the side frame assembly;

s4, adjusting the first outer clamping rod and the second outer clamping rod to enable the side frame assembly to be clamped;

and S5, checking, detecting the parallelism between the two side frame assemblies and the perpendicularity between the two side frame assemblies and the bottom frame assembly, and performing welding operation after the parallelism and the perpendicularity between the two side frame assemblies and the bottom frame assembly are qualified.

The frame tailor-welding tool has the beneficial effects that: the frame welding tool is simple in structure, convenient to position a large frame, simple and quick in positioning operation, capable of guaranteeing good parallelism of the frame after welding, small in error, small in verticality error of the longitudinal axis of the frame and difficult to deviate in working of each power component or transmission component and the like on the frame.

The frame tailor-welding method of the technical scheme of the invention has the beneficial effects that: the parallelism between the side frame assemblies is ensured by welding the side frame assemblies independently and then welding the side frame assemblies, the verticality of the longitudinal axis of the rack is ensured, the rack has good performance and high quality after welding, and each power component or transmission component and the like arranged on the rack are not easy to deviate in work.

Drawings

Figure 1 is a schematic view of a rack structure in the technical scheme of the invention,

figure 2 is a schematic view of a chassis assembly in a rack,

figure 3 is a schematic view of a side frame assembly in a frame,

FIG. 4 is a schematic view showing the positions of the underframe assembly and the two side frame assemblies after being positioned by the frame tailor-welding tool,

FIG. 5 is a schematic view of a frame tailor-welding tool,

figure 6 is an enlarged view at a in figure 5,

FIG. 7 is a schematic view of a structure of an inner stop bar,

fig. 8 is a schematic structural view of an outer clamping rod.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.

The dry coal separator has a frame 9 m long, 2.5 m wide and 4 t heavy, components such as a driving roller, a bend pulley, a lower carrier roller, a buffer carrier roller assembly and a receiver box need to be installed on the frame, parallelism among the components needs to be guaranteed after the components are installed, the vertical axis of the frame needs to be guaranteed, and the operation of the whole machine is influenced otherwise.

As shown in fig. 1 to 3, in the prior art, a welding process of a rack assembly 10 includes: the method comprises the steps of welding the underframe assembly 101, and then respectively welding the side frame assemblies 102 on the underframe assembly 101, wherein after welding is finished, the parallelism error between the side frame assemblies 102 on two sides is large, the perpendicularity error between the side frame assemblies and the longitudinal axis of a rack is large, and after components such as a driving roller, a bend roller, a lower carrier roller, a buffer carrier roller component and a receiver box are assembled, the phenomena of deflection and deviation are easy to occur in the operation process of each component.

In order to solve the above problems, the following technical solutions are proposed.

As shown in fig. 5 and 6, the frame tailor-welding tool according to the technical solution of the present invention includes a positioning underframe 1 for fixing an underframe assembly 101 and a side frame positioning device 2 for respectively positioning two side frame assemblies 102. The side frame positioning device 2 comprises an inner limiting frame 21 fixedly installed with the positioning underframe 1, two inner supporting mechanisms 22 respectively installed at two sides of the inner limiting frame 21 and vertically extending towards two outer side surfaces of the positioning underframe 1, and two outer clamping mechanisms 23 respectively fixed at two sides of the positioning underframe 1 and respectively opposite to the two inner supporting mechanisms 22. One end of the positioning underframe 1 is provided with an end part limiting mechanism 3 for realizing the positioning of the end part of the side frame of the rack.

Based on above-mentioned technical scheme, this frame is pieced together and is welded the frock when carrying out welding operation, as shown in figure 4, with army's frame model and size selection suitable size's frock. When the welding is used for auxiliary installation, the underframe assembly 101 is firstly placed on the positioning underframe 1, and the fixation is realized through the self weight of the underframe assembly 101. The position of the inner support mechanism 22 and the distance between the inner support mechanism 22 and the outer clamping mechanism 23 are then adjusted based on the size and thickness of the side frame assembly 102. Then, the two-side frame assembly 102 is placed between the inner supporting mechanism 22 and the outer clamping mechanism 23 on the two sides of the positioning underframe 1, and the outer clamping mechanism 23 is screwed tightly, so that the outer clamping mechanism 23 and the inner supporting mechanism 22 together realize the clamping of the two-side frame assembly 102. After the two side frame assemblies 102 are fastened, the two side frame assemblies 102 are ensured to be parallel to each other, and the parallelism between the two side frame assemblies is good. And finally, welding the two side frame assemblies 102 with the bottom frame assembly 101.

When the two side frame assemblies 102 are positioned, the positioning of the two side frame assemblies 102 in the front-back direction of the frame is performed by the end limiting mechanism 3, that is, as shown in fig. 4, the components at the front ends of the two side frame assemblies 102 extend downward to the front part of the positioning underframe 1, and the end limiting mechanism 3 located at the front part of the positioning underframe 1 positions the two side frame assemblies 102.

After the two side frame assemblies 102 and the underframe assembly 101 are welded, the welded frame is integrally hoisted by using a crane, so that the frame is integrally unloaded by using a welding tool.

As shown in fig. 5 and 6, the inner limiting frame 21 includes a first inner limiting frame 211 and a second inner limiting frame 212, and the first inner limiting frame 211 and the second inner limiting frame 212 are disposed apart from each other. The sizes and the positions of the first inner limiting frame 211 and the second inner limiting frame 212 are designed according to the structures of the underframe assembly 101 and the two side frame assemblies 102, so that the problem of interference between the underframe assembly 101 and the two side frame assemblies 102 during installation is avoided when the machine frame is welded. The first inner limiting frame 211 and the inner limiting frame 212 are arranged away from each other, namely, a certain distance should be reserved between the first inner limiting frame 211 and the inner limiting frame 212, and when the inner support mechanism 22 and the outer clamping mechanism 23 on the first inner limiting frame 211 and the inner limiting frame 212 fix the two side frame assemblies 102, stability and balance of the two side frame assemblies 102 with larger sizes can be ensured.

As shown in fig. 6 to 8, the inner support mechanism 22 includes a first inner limiting rod 221 and a second inner limiting rod, which are horizontally disposed on the first inner limiting frame 211 and the second inner limiting frame 212, respectively, and the axes of the first inner limiting rod 221 and the second inner limiting rod are perpendicular to the central axis of the positioning chassis 1. The outer clamping mechanism 23 comprises a first outer clamping rod 231 and a second outer clamping rod, the axes of which are respectively overlapped with the axes of the first inner limiting rod 221 and the second inner limiting rod. The first outer clamping rod 231 and the second outer clamping rod are respectively connected with a clamping rod mounting frame 234, and the clamping rod mounting frame 234 is fixedly mounted with the positioning underframe 1.

Among the above-mentioned technical scheme, the tight principle of clamp is: the first inner limiting rod 211 and the first outer clamping rod 231 are arranged oppositely and coaxially, and the positioning and clamping of the side frame assembly are achieved through the opposite acting force of the first inner limiting rod 211 and the first outer clamping rod 231. The clamping principle and the clamping mode between the inner limiting rod II and the outer clamping rod II are the same.

In the technical scheme, the first inner limiting rod 211, the first outer clamping rod 231, the second inner limiting rod and the second outer clamping rod are clamped tightly, so that the vertical state of the side frame assembly and the parallelism between the two side frame assemblies are ensured.

As shown in fig. 7 and 8, the first internal limiting frame 211 and the second internal limiting frame are respectively fixed with a first threaded shaft sleeve 222 and a second threaded shaft sleeve, and the first internal limiting rod 221 and the second internal limiting rod are respectively penetrated by the first shaft sleeve 222 and the second shaft sleeve. The first inner limiting rod 221 and the second inner limiting rod face the first outer clamping rod 231 respectively, and two ends of the second outer clamping rod are connected with a top 223 through threads respectively. The ends of the first inner limiting rod 221 and the second inner limiting rod far away from the top 223 are respectively fixed with a rotating handle 224.

In the above technical scheme, the position of the top head 223 is adjusted by rotating the inner limiting rod I221, that is, the position and the length of the top head 22 extending out of the inner limiting frame I211 are adjusted, that is, the mounting position of the side frame assembly is adjusted. In the same way, the adjusting mode and the acting mode of the inner limiting rod II are the same.

In the technical scheme, the top 223 is connected with the first inner limiting rod 221, so that after the side frame assembly is positioned, when the parallelism between the position of the side frame assembly and the positions of the two side frame assemblies is detected before welding, the position of the side frame assembly can be finely adjusted by finely adjusting the top 223.

The first outer clamping rod 231 and the second outer clamping rod are respectively sleeved with a fixed threaded sleeve fixed with the clamping rod mounting frame 234, the first outer clamping rod 231 and the second outer clamping rod are respectively connected with a clamping head 232 towards the first inner limiting rod 221 and the two ends of the inner limiting rod through threads, and the other ends of the first outer clamping rod 231 and the second outer clamping rod are provided with rotating handles 233. The adjusting mode and principle of the technical scheme are the same as those of the first inner limiting rod 221. The opposing top head 223 and clamping head 232 effect clamping of the side frame assembly.

As shown in fig. 5, in the present embodiment, the end limiting mechanism 3 includes a positioning square steel fixed at one end of the positioning base frame 1 and extending forward, the positioning square steel contacts with the front end of the side frame assembly, a contact surface of the positioning square steel and the side frame assembly is a vertical plane, the positioning base frame is rectangular, and the first inner limiting frame and the second inner limiting frame are both rectangular frames.

A frame welding method comprises welding according to the following steps,

in the first step, the bottom frame assembly 101 and the two side frame assemblies 102 of the rack are respectively welded.

And secondly, sequentially positioning the underframe assembly 101 and the two side frame assemblies 102 through a frame tailor-welding tool, wherein the two side frame assemblies 102 are parallel to each other after being positioned, and the two side frame assemblies 102 are respectively kept in a vertical state.

And thirdly, welding the two positioned two side frame assemblies 102 with the bottom frame assembly 101 respectively.

And fourthly, checking.

The rack tailor-welding tool is the rack tailor-welding tool. The method for positioning the underframe assembly and the two side frame assemblies by the frame tailor-welding tool comprises the following steps:

s1, selecting a frame tailor-welding tool with a proper size according to the model and the size of the frame, placing the chassis assembly 101 which is welded separately on the positioning chassis 1, and fixing the chassis assembly 101 on the positioning chassis 1 by using the self weight of the chassis assembly 101.

And S2, adjusting the two inner support mechanisms 22 to enable the first inner limiting rod 221 and the inner limiting rod on the same inner support mechanism to vertically extend to the outer side surface of the positioning underframe 1 by the same distance. Meanwhile, the distance between the two first inner limiting rods 221 and the distance between the two second inner limiting rods are ensured to be the distance between the two side frame assemblies.

S3, adjusting the two outer clamping mechanisms 23, wherein the distance between the end parts of the first outer clamping rod 231 and the second outer clamping rod on the outer clamping mechanisms 23 and the end parts of the first inner limiting rod 221 and the second inner limiting rod is slightly larger than the thickness of the side frame assembly 102, so that the side frame assembly can smoothly enter between the first inner limiting rod 221 and the first outer clamping rod 231 during installation.

S4, adjusting the first outer clamping rod 231 and the second outer clamping rod to enable the side frame assembly 102 to be clamped.

And S5, checking, detecting the parallelism between the two side frame assemblies 102 and the perpendicularity between the two side frame assemblies 102 and the underframe assembly 101, and performing welding operation after the parallelism and the perpendicularity are qualified. If the installation of the two side frame assemblies 102 is not qualified after detection, the adjustment of the side frame assemblies is completed through the fine adjustment of the jacking heads 223 and the clamping heads 232.

Technical solution of the invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other occasions without modification.