CN115055898B

CN115055898B - Welding jig

Info

Publication number: CN115055898B
Application number: CN202210894733.9A
Authority: CN
Inventors: 张剑锋; 潘杰培; 欧俊; 黄志鹏
Original assignee: Jiangsu Tomilo Environmental Testing Equipment Co Ltd
Current assignee: Jiangsu Tuomiluo High End Equipment Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-09
Anticipated expiration: 2042-07-28
Also published as: CN115055898A; CN115533431A

Abstract

The invention discloses a welding jig, and relates to the technical field of welding. The welding jig comprises a support and a fixing mechanism. The support comprises a support table, and the support table and the ground are arranged at an included angle; the fixing mechanism comprises a fixing piece, the fixing piece is rotatably arranged on the supporting table, positioning stop blocks are arranged on the periphery of the fixing piece, and the positioning stop blocks are abutted to the periphery of the to-be-welded piece to fix the to-be-welded piece. This welding jig can improve welding efficiency, reduces the health burden that causes operating personnel.

Description

Welding jig

Technical Field

The invention relates to the technical field of welding, in particular to a welding jig.

Background

In order to improve the strength of the box door outer frame of the environmental test box, reinforcing ribs need to be welded on the inner side of the edge of the box door outer frame. In the welding process, the box door outer frame needs to be placed on the operation platform, and the reinforcing ribs are welded by operators along the periphery of the box door outer frame.

However, because the welding point of strengthening rib is sheltered from by the chamber door frame easily, operating personnel need weld the strengthening rib along direction from inside to outside, and welding efficiency is low, the degree of difficulty is big, and operating personnel bends down the welding for a long time, still can cause the burden to operating personnel's health.

In view of the above problems, a welding jig needs to be developed to solve the above problems.

Disclosure of Invention

The invention aims to provide a welding jig which can improve welding efficiency and reduce physical burden on operators.

In order to achieve the purpose, the invention adopts the following technical scheme:

a welding jig comprising:

the support comprises a support table, and the support table and the ground are arranged at an included angle;

the fixing mechanism comprises a fixing piece, the fixing piece is rotatably arranged on the supporting table, positioning check blocks are arranged on the periphery of the fixing piece, and the positioning check blocks abut against the periphery of the to-be-welded piece to fix the to-be-welded piece.

Preferably, the fixing mechanism includes a plurality of support rollers, the support rollers are rotatably disposed on the fixing member, and the support rollers are in rolling contact with the support table.

Preferably, at least one of the supporting rollers is provided with a braking piece, the braking piece is movably arranged on the fixing piece, and the braking piece can abut against the supporting rollers to prevent the supporting rollers from rotating.

Preferably, the fixing mechanism further comprises a plurality of auxiliary rollers, the supporting table is provided with a circular track, the auxiliary rollers are rotatably arranged on the fixing member, and the auxiliary rollers are arranged on the inner side of the circular track and are in rolling contact with the inner side of the circular track.

Preferably, the positioning stopper is slidably disposed on the fixing member so as to be close to or far from a rotation center of the fixing member.

Preferably, the fixing mechanism further comprises a locking screw and a nut, the fixing member is provided with a through groove, and the locking screw sequentially penetrates through one of the positioning stop blocks and the through groove and is in threaded connection with the nut.

Preferably, the positioning stop block comprises a fixing portion and an abutting portion, the fixing portion is vertically connected with the abutting portion, the locking screw sequentially penetrates through the fixing portion and the through groove and is in threaded connection with the nut, and the abutting portion is used for abutting against the periphery of the to-be-welded part.

Preferably, the fixing piece is provided with scale marks along the direction of the through groove.

Preferably, the support further comprises a base and a support piece, the support table is pivoted with the base, a plurality of clamping grooves are formed in the base at intervals along the direction far away from the support table, one end of the support piece is pivoted with the support table, and the other end of the support piece can be selectively inserted into one of the clamping grooves.

Preferably, the included angle between the support table and the ground is 60-75 degrees.

The invention has the beneficial effects that:

the invention provides a welding jig. In the welding jig, the fixing piece is used for supporting the outer frame of the box door and fixing the outer frame of the box door by utilizing the surrounding positioning stop blocks, so that the outer frame of the box door forms an included angle with the ground. One limit that the chamber door frame is located the below this moment roughly up with the welding point of strengthening rib, and operating personnel can be very convenient sees the welding point, and the welding direction is from top to bottom, the welding of being convenient for, and operating personnel can stand and weld, can not cause the burden to the health. After one side is welded, an operator can sequentially weld other sides by rotating the fixing part.

This welding jig can improve welding efficiency, reduces the health burden that causes operating personnel.

Drawings

FIG. 1 is an exploded view of the outer frame of the door of the present invention;

FIG. 2 shows a welding jig according to the present invention the structure schematic diagram of the outer frame of the fixed box door;

FIG. 3 is a schematic structural diagram of a welding jig according to the present invention;

FIG. 4 is a schematic structural view of a securing mechanism provided by the present invention;

fig. 5 is a schematic structural diagram of the supporting table, the supporting rollers and the auxiliary rollers provided in the present invention.

In the figure:

100. a box door outer frame; 101. a base plate; 102. a vertical plate; 103. a limiting table; 104. reinforcing ribs;

1. a support; 2. a fixing mechanism;

11. a support table; 12. a base; 13. a support member; 21. a fixing member; 22. positioning a stop block; 23. supporting the rollers; 24. an auxiliary roller; 25. a locking screw; 26. a nut;

111. a circular track; 112. a rotating shaft; 121. a card slot; 211. a through groove; 221. a fixed part; 222. an abutment portion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 and fig. 2, a box door outer frame 100 of the environmental test box is a frame structure, and includes a bottom plate 101, a vertical plate 102 disposed around the bottom plate 101, and a limit table 103 formed by bending and extending the vertical plate 102 inward, wherein the box door can be fastened to the limit table 103 to close the box body. In order to increase the strength of the door outer frame 100, a reinforcing rib 104 needs to be welded to the inside of the vertical plate 102. In the welding process, the door outer frame 100 is placed on the work platform, and the operator welds the reinforcing ribs 104 along the periphery of the door outer frame 100.

However, since the welding point of the reinforcing rib 104 is easily shielded by the limiting table 103, the operator can see the welding point from the gap between the limiting table 103 and the bottom plate 101 by bending the waist and bending the neck askew, and the operator needs to weld the reinforcing rib 104 along the direction from inside to outside, so that the welding efficiency is low, the difficulty is high, and the operator can bend down for a long time to weld and also can cause burden to the body of the operator.

In the present embodiment, the to-be-welded component is described by taking the door frame 100 as an example.

In order to solve the above problems, the present embodiment provides a welding jig. As shown in fig. 2 and 3, the welding jig includes a bracket 1 and a fixing mechanism 2. Support 1 includes brace table 11, and brace table 11 is the contained angle setting with ground. The fixing mechanism 2 includes a fixing member 21, the fixing member 21 is rotatably disposed on the supporting platform 11, positioning stoppers 22 are disposed around the fixing member 21, and the positioning stoppers 22 abut against the periphery of the door outer frame 100 to fix the door outer frame 100.

In the welding jig, the fixing member 21 is used for supporting the door outer frame 100, and the door outer frame 100 is fixed by the positioning stoppers 22 around the fixing member, so that the door outer frame 100 forms an included angle with the ground. At this time, one side of the box door outer frame 100 below is approximately upward in welding point with the reinforcing rib 104, so that an operator can see the welding point conveniently, the welding direction is from top to bottom, the welding is convenient, and the operator can stand to weld without burden on the body. After welding one side, the operator can sequentially complete the welding of the other sides by rotating the fixing member 21.

Wherein, the support table 11 is provided with a rotating shaft 112, and the rotating shaft 112 penetrates through the fixing member 21 so that the fixing member 21 can rotate around the rotating shaft 112.

Since the outer contour of the door outer frame 100 is rectangular, the fixing member 21 of the welding jig is provided with four positioning stoppers 22, and the four positioning stoppers 22 are respectively abutted against one side of the door outer frame 100.

As shown in fig. 4, the fixing mechanism 2 includes a plurality of support rollers 23, the support rollers 23 are rotatably disposed on the fixing member 21, and the support rollers 23 are in rolling contact with the support table 11. When the fixing member 21 rotates, the supporting roller 23 can roll on the table top of the supporting table 11, so that part of the weight of the fixing member 21 and the door outer frame 100 is applied to the supporting table 11, thereby reducing the weight borne by the rotating shaft 112, preventing the rotating shaft 112 from bending due to stress deformation, enabling the fixing member 21 to rotate more easily along the rotating shaft 112, and enabling the distance between each position of the fixing member 21 and the supporting table 11 to be kept unchanged, thereby improving the stability of the welding jig in the use process and the portability of operation.

Wherein, at least one support roller 23 is provided with a braking piece, the braking piece is movably arranged on the fixing piece 21, and the braking piece can be abutted against the support roller 23 to prevent the support roller 23 from rotating. When the fixing member 21 is rotated to a desired position, the braking member can brake the supporting roller 23 so as to stabilize the fixing member 21 at a corresponding position, thereby ensuring stability during welding.

As shown in fig. 4 and 5, the fixing mechanism 2 further includes a plurality of auxiliary rollers 24, the support base 11 is provided with a circular rail 111, the plurality of auxiliary rollers 24 are rotatably provided on the fixing member 21, and the plurality of auxiliary rollers 24 are all provided inside the circular rail 111 and are in rolling contact with the inside of the circular rail 111. The auxiliary roller 24 is located on the inner side of the circular rail 111, when the operator rotates the fixing member 21, the circular rail 111 can support the fixing member 21 through the auxiliary roller 24, so that the weight borne by the rotating shaft 112 can be reduced, and the fixing member 21 can be prevented from shifting during rotation.

Preferably, the positioning stopper 22 is slidably provided to the fixing member 21 to be close to or far from the rotation center of the fixing member 21. The positioning stopper 22 can adjust the distance between the positioning stopper 22 and the opposite positioning stopper by sliding, so as to be suitable for fixing the door outer frames 100 with different sizes.

As shown in fig. 2 and 4, the fixing mechanism 2 further includes a locking screw 25 and a nut 26, the fixing member 21 is provided with a through groove 211, and the locking screw 25 sequentially passes through a positioning stopper 22 and the through groove 211 and is in threaded connection with the nut 26. The positioning stopper 22 and the locking screw 25 can slide together in the direction of the through-groove 211, and the locking screw 25 and the nut 26 are tightened in place to fix the positioning stopper 22. It can be understood that more than two through grooves 211 can be disposed on the same side of the fixing member 21, and each through groove 211 corresponds to one locking screw 25 passing through the positioning block 22, so as to prevent the positioning block 22 from rotating and improve the positioning accuracy of the positioning block 22.

As shown in fig. 2, the positioning stopper 22 includes a fixing portion 221 and an abutting portion 222, the fixing portion 221 is vertically connected to the abutting portion 222, the locking screw 25 sequentially passes through the fixing portion 221 and the through groove 211 and is screwed to the nut 26, and the abutting portion 222 abuts against the outer periphery of the door outer frame 100. The fixing portion 221 and the abutting portion 222 are designed to be L-shaped structures perpendicular to each other, so that the weight of the positioning stopper 22 can be reduced while the contact area between the positioning stopper 22 and the door outer frame 100 is increased, and the fixing portion 221 is thin, so that an operator can fasten the positioning stopper 22 through the locking screw 25 and the nut 26 conveniently.

Preferably, the fixing member 21 is provided with scale lines along the extending direction of the through groove 211. An operator can quickly adjust the position of the positioning stop 22 according to the scale marks, so that the door outer frame 100 can be positioned before welding. Specifically, the fixing member 21 is provided with corresponding scale lines at each of the four positioning stoppers 22.

As shown in fig. 3, the bracket 1 further includes a base 12 and a supporting member 13, the supporting platform 11 is pivotally connected to the base 12, the base 12 is provided with a plurality of slots 121 at intervals along a direction away from the supporting platform 11, one end of the supporting member 13 is pivotally connected to the supporting platform 11, and the other end of the supporting member 13 is selectively inserted into one of the slots 121. The operating personnel can choose to insert different draw-in grooves 121 with support piece 13 and adjust the contained angle between support piece 13 and the ground to adjust a suitable welded angle with chamber door frame 100, improve the comfort level of operating personnel when welding, improve welding efficiency.

Specifically, the included angle between the support platform 11 and the ground is 60-75 degrees. It can be understood that too large an included angle between the support platform 11 and the ground may cause the door outer frame 100 to be too upright, and in order to prevent the bottom plate 101 of the door outer frame 100 from being collided during the welding process, an operator needs to incline in a direction away from the door outer frame 100, which is inconvenient to weld and the door outer frame 100 is unstable; however, too small an included angle between the support platform 11 and the ground may cause the outer frame 100 of the box door to lie too flat, which makes it difficult for the operator to observe the welding point and increases the burden on the body caused by the welding posture. The included angle between the support table 11 and the ground can be 63 °, 66 °, 69 °, and 72 °.

Preferably, the bracket 1 of the welding jig stands on the ground, and in order to keep stability during the welding process, the bracket 1 and the ground can be fixedly connected together so as to bear a heavy test box door outer frame 100. In particular, metal nails may be fixed on the ground, the bracket 1 and the metal nails being fixed by welding or by other means. For example, the upper end of the metal nail is made into an external thread, the joint of the bracket 1 and the metal nail is made into an external thread, and then the bracket 1 and the metal nail are fixedly connected together through a nut 26.

Specifically, the height of the bracket 1 also determines the working height of the operator during welding, and in order to facilitate the operation of the welder and meet the human engineering as much as possible, the height of the bracket 1 needs to be adjusted, so that after the fixing member 21 fixes the door outer frame 100, the height of the lowest edge of the door outer frame 100 from the ground is between 30cm and 50 cm.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A welding jig, characterized by, includes:

the support comprises a support (1), wherein the support (1) comprises a support table (11), and the support table (11) and the ground are arranged at an included angle;

the fixing mechanism (2) comprises a fixing piece (21), the fixing piece (21) is rotatably arranged on the supporting table (11), positioning stop blocks (22) are arranged on the periphery of the fixing piece (21), and the positioning stop blocks (22) abut against the periphery of a to-be-welded piece to fix the to-be-welded piece;

the fixing mechanism (2) further comprises a plurality of auxiliary rollers (24), the supporting table (11) is provided with a circular track (111), the auxiliary rollers (24) are rotatably arranged on the fixing piece (21), and the auxiliary rollers (24) are all arranged on the inner side of the circular track (111) and are in rolling contact with the inner side of the circular track (111);

fixing mechanism (2) still include a plurality of supporting rollers (23), supporting rollers (23) rotate set up in mounting (21), supporting rollers (23) with supporting bench (11) roll butt, at least one supporting rollers (23) are provided with the brake spare, the activity of brake spare set up in mounting (21), the brake spare can the butt supporting rollers (23) are in order to prevent supporting rollers (23) rotate.

2. A welding jig according to claim 1, characterized in that the positioning stopper (22) is slidably disposed on the fixing member (21) so as to be close to or away from a rotation center of the fixing member (21).

3. The welding jig according to claim 2, wherein the fixing mechanism (2) further comprises a locking screw (25) and a nut (26), the fixing member (21) is provided with a through groove (211), and the locking screw (25) sequentially passes through one of the positioning stoppers (22) and the through groove (211) and is in threaded connection with the nut (26).

4. The welding jig of claim 3, wherein the positioning stopper (22) comprises a fixing portion (221) and an abutting portion (222), the fixing portion (221) is perpendicularly connected with the abutting portion (222), the locking screw (25) sequentially penetrates through the fixing portion (221) and the through groove (211) and is in threaded connection with the nut (26), and the abutting portion (222) is used for abutting against the periphery of the part to be welded.

5. The welding jig according to claim 3, characterized in that the fixing piece (21) is provided with scale marks along the direction of the through groove (211).

6. The welding jig according to any one of claims 1 to 5, wherein the support (1) further comprises a base (12) and a support (13), the support (11) is pivoted with the base (12), the base (12) is provided with a plurality of clamping grooves (121) at intervals along a direction away from the support (11), one end of the support (13) is pivoted with the support (11), and the other end of the support is selectively inserted into one of the clamping grooves (121).

7. The welding jig of any one of claims 1 to 5, wherein an included angle between the support table (11) and the ground is 60-75 °.