CN215615944U - Large-line welding auxiliary device on inner side of motor train unit body - Google Patents
Large-line welding auxiliary device on inner side of motor train unit body Download PDFInfo
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- CN215615944U CN215615944U CN202121540997.1U CN202121540997U CN215615944U CN 215615944 U CN215615944 U CN 215615944U CN 202121540997 U CN202121540997 U CN 202121540997U CN 215615944 U CN215615944 U CN 215615944U
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Abstract
The utility model provides a large-line welding auxiliary device on the inner side of a motor train unit train body, which comprises a supporting rod, two connecting rods and two change sheaves, wherein the two connecting rods are connected with the supporting rod through a connecting rod; the two connecting rods are arranged on the supporting rod at intervals along the axial direction of the supporting rod, and one end of each connecting rod extends upwards; the two change gears are respectively and rotatably connected with the extending ends of the two connecting rods and are respectively used for being hung in a C groove on the side wall of the vehicle body; the support rod is positioned between the two connecting rods and is used for supporting the welding gun or an arm of the welding gun held by an operator. According to the auxiliary device for welding the upper large line on the inner side of the motor train unit train body, the support effect of the support rod on the arm or the welding gun is utilized, the labor intensity of an operator can be greatly reduced, the situation that the arm is acid and soft due to long-time arm suspension operation of the operator is avoided, and therefore the welding efficiency and the welding quality are improved.
Description
Technical Field
The utility model belongs to the technical field of auxiliary welding tools for train bodies, and particularly relates to an auxiliary device for welding a large line on the inner side of a train body of a motor train unit.
Background
At present, in the manufacturing process of a rail vehicle, automatic welding technology is generally adopted no matter welding large parts such as an underframe, a side wall, a floor and a roof, and welding seam welding of a longitudinal large line outside a vehicle body after a vehicle body assembly, but in the stage of vehicle body assembly, due to space limitation, manual MIG (metal inert-gas welding) is still required for the large line inside the vehicle body, and because the two large lines of the top and the side wall in the vehicle body are higher from the floor, when the large line is formed, a welder needs to stand on a three-step ladder to lift a welding gun to perform arm suspension operation, the labor intensity is high, and the arm is easily softened due to long-time continuous operation, so that the action deformation is caused, and the welding quality and efficiency are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a large-line welding auxiliary device on the inner side of a motor train unit train body, and aims to solve the problems that the welding quality and efficiency are affected due to the fact that arms of operators are easily softened during continuous operation due to high intensity of large-line welding operation on the inner side of the motor train unit train body.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a large-line welding auxiliary device on the inner side of a motor train unit train body, which comprises a support rod, two connecting rods and two change sheaves; the two connecting rods are arranged on the supporting rod at intervals along the axial direction of the supporting rod, and one end of each connecting rod extends upwards; the two change gears are respectively and rotatably connected with the extending ends of the two connecting rods and are respectively used for being hung in a C groove on the side wall of the vehicle body; the support rod is positioned between the two connecting rods and is used for supporting the welding gun or an arm of the welding gun held by an operator.
In a possible implementation mode, threaded holes are respectively formed in two ends of the supporting rod, a fastening piece penetrates through the connecting rod in a rotating mode, and the fastening piece is connected with the threaded holes in a rotating mode.
In some embodiments, a plurality of clamping grooves are respectively distributed on the side walls of the two ends of the supporting rod at intervals along the circumferential direction of the two threaded holes, and a plurality of clamping teeth are distributed on the side wall of the connecting rod at intervals along the circumferential direction of the fastening piece; the latch is correspondingly clamped with the clamping groove.
In one possible implementation, a sliding sleeve is slidably mounted on the support rod and is used for supporting the welding gun or the arm.
In some embodiments, the inner peripheral wall of the sliding sleeve is embedded with a plurality of rows of balls, and each row of balls is distributed at intervals along the axial direction of the supporting rod.
In some embodiments, the sliding sleeve is provided with an arc-shaped supporting plate which is suitable for supporting a gun body or an arm of the welding gun.
For example, the arc supporting plate is horizontally and rotatably connected to the side wall of the sliding sleeve.
In a possible implementation mode, two ends of the supporting rod are respectively provided with a top rod in a penetrating way, and one end of the top rod is used for abutting against and supporting the side wall of the vehicle body.
In some embodiments, the pressing end of the ejector rod is embedded with a rubber head.
In one possible implementation, the change gear is a nylon roller.
The auxiliary device for welding the upper large line on the inner side of the motor train unit train body has the advantages that: compared with the prior art, the auxiliary device for large-line welding on the inner side of the motor train unit train body can be hung on the side wall through the matching of the two hanging wheels and the C groove on the side wall of the train body, the connection is convenient and reliable, when in welding operation, an arm of an operator holding a welding gun or the welding gun can be placed on the supporting rod, the welding is carried out by moving the welding gun between the two connecting rods, and the support effect of the supporting rod on the arm or the welding gun is utilized, so that the labor intensity of the operator can be greatly reduced, the arm acid-soft condition caused by long-time arm suspension operation of the operator is avoided, the labor saving and high efficiency in the welding process are ensured, and the straightness of a welding seam can be improved compared with the suspension welding operation mode due to the guiding effect of the supporting rod in the moving process of the welding gun, so that the welding quality is improved, and after the welding seam length between the two connecting rods is welded, can continue the operation to next position through the roll direct movement of change gear in C inslot, need not the dismouting and shift, convenient operation is laborsaving, efficient.
Drawings
FIG. 1 is a schematic structural view of a large-line welding auxiliary device on the inner side of a train body of a motor train unit provided by an embodiment of the utility model;
FIG. 2 is a schematic view of a connection structure of a support rod and a connecting rod according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a large-line welding auxiliary device on the inner side of a motor train unit train body according to another embodiment of the utility model;
FIG. 4 is a schematic view of an installation structure of a large-line welding auxiliary device on the inner side of a motor train unit train body according to an embodiment of the utility model.
In the figure: 1. a support bar; 10. a threaded hole; 11. a card slot; 2. a connecting rod; 21. a fastener; 22. clamping teeth; 3. a change gear; 4. a sliding sleeve; 41. a ball bearing; 42. an arc-shaped supporting plate; 43. a damper pin; 5. a top rod; 50. a rubber head; 6. a vehicle body side wall; 60. and (4) groove C.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 and 4, the auxiliary device for welding the large wire on the inner side of the train body of the motor train unit provided by the utility model will be described. The large-line welding auxiliary device on the inner side of the motor train unit train body comprises a support rod 1, two connecting rods 2 and two change sheaves 3; the two connecting rods 2 are arranged on the supporting rod 1 at intervals along the axial direction of the supporting rod 1, and one end of each connecting rod 2 extends upwards; the two change gears 3 are respectively and rotatably connected with the extending ends of the two connecting rods 2 and are respectively used for being hung in the C-shaped grooves 60 on the side wall 6 of the vehicle body; the support rod 1 is located between the two connecting rods 2 and is used for supporting the welding gun or an arm of the welding gun held by an operator.
It should be noted that, the C groove 60 and the upper major line welding seam on the side wall 6 of the car body are in a parallel extending mode, the size of the change gear 3 should be matched with the size of the C groove 60, because the mouth part of the C groove 60 is provided with an upper folded edge and a lower folded edge, the blocking effect of the folded edges on the change gear 3 can be utilized to prevent the change gear 3 from falling off from the C groove 60, when the device is installed on the side wall, the two change gears 3 should be embedded into the C groove 60 from the end part of the C groove 60 and pass through the position of the rolling change gear 3, so that the distance between the two change gears 3 is consistent with the distance between the two connecting rods 2, then the rotating shafts of the two change gears 3 are respectively connected with the extending ends of the two connecting rods 2, similarly, when the device is disassembled, the connection between the two change gears 3 and the two connecting rods 2 should be firstly released, and then the two change gears 3 respectively slide off from the port part of the C groove 60; in addition, because the change gear 3 needs to adopt the mode of dismantling the connection with the connecting rod 2, the change gear 3 can be embedded bearing and pass through the bearing through the bolt and then connect the mode of connecing soon with the bracing piece 1 and be also can be set up the pivot on the bracing piece 1 to connect soon fixedly through the nut after the change gear 3 suit is on the pivot.
Compared with the prior art, the auxiliary device for welding the upper large line on the inner side of the motor train unit train body can be hung on the side wall through the matching of the two hanging wheels 3 and the C groove 60 on the side wall 6 of the train body, the connection is convenient and reliable, when in welding operation, an arm or a welding gun of an operator holding the welding gun can be put on the support rod 1, the welding is carried out by moving the welding gun between the two connecting rods 2, the labor intensity of the operator can be greatly reduced by utilizing the support effect of the support rod 1 on the arm or the welding gun, the situation that the arm is acid and soft due to long-time arm suspension operation of the operator is avoided, the labor saving and the high efficiency of the welding process are ensured, and the straightness of a welding line can be improved compared with the suspension welding operation mode, so that the welding quality is improved, after the welding line length of the distance between the two connecting rods 2 is welded, can directly move to the next position to continue the operation through the rolling of change gear 3 in C groove 60, need not the dismouting and shift, convenient operation is laborsaving, efficient.
In some embodiments, referring to fig. 1 and 2, threaded holes 10 are respectively formed at two ends of the support rod 1, a fastening member 21 is rotatably inserted into the connecting rod 2, and the fastening member 21 is rotatably connected with the threaded holes 10. That is, the two connecting rods 2 are respectively hinged at two ends of the supporting rod 1, and because the part of the supporting rod 1 between the two connecting rods 2 is an effective supporting part for supporting the movement of an arm or a welding gun during welding operation, the length utilization rate of the supporting rod 1 can be improved by arranging the two connecting rods 2 at the two ends of the supporting rod 1, so that the length of single continuous welding operation is improved, the continuity and the quality of a welding seam are improved, the integral shifting times of the device are reduced, and the welding efficiency is improved; and the connecting rod 2 is hinged on the supporting rod 1 through the fastener 21, the angle of the connecting rod 2 can be flexibly adjusted, so that the vertical distance between the supporting rod 1 and the C groove 60 can be adjusted, the welding gun support device can be suitable for different operators (different arm lengths and different habitual positions for holding the welding gun) to select the welding gun or the arm support height, and the use is flexible and convenient.
In order to improve the hinge stability between the connecting rod 2 and the supporting rod 1, in this embodiment, referring to fig. 2, a plurality of clamping grooves 11 are respectively distributed on the side walls of the two ends of the supporting rod 1 at intervals along the circumferential direction of the two threaded holes 10, a plurality of clamping teeth 22 are distributed on the side wall of the connecting rod 2 at intervals along the circumferential direction of the fastening member 21, and the clamping teeth 22 are correspondingly clamped with the clamping grooves 11. Can swing the angle of connecting rod 2 after making draw-in groove 11 and latch 22 break away from through not hard up fastener 21, screw fastener 21 after 2 angular adjustment of connecting rod target in place, make latch 22 and draw-in groove 11 joint again to the relative swing degree of freedom of restriction connecting rod 2 and bracing piece 1 avoids taking place the relative swing between connecting rod 2 and the bracing piece 1 when bracing piece 1 is compressed, ensures that the support to arm or welder is stable among the welding process.
Because the friction between the welding gun or the arm and the support rod 1 is unstable, the situation that the speed of the welding gun or the arm is unbalanced easily occurs when the welding gun or the arm moves on the support rod 1, so that the welding quality is affected, in order to avoid the above problem, in some possible implementation manners, referring to fig. 3, a sliding sleeve 4 is sleeved on the support rod 1, and the sliding sleeve 4 is used for supporting the welding gun or the arm. Utilize invariable frictional resistance all the time between sliding sleeve 4 and the bracing piece 1 to can make things convenient for the speed that operating personnel controlled welder or arm and remove, improve the continuity and the uniformity of welding seam, promote welding quality.
In the present embodiment, referring to fig. 3, a plurality of rows of balls 41 are embedded on the inner peripheral wall of the sliding sleeve 4, and each row of balls 41 is distributed at intervals along the axial direction of the support rod 1. The rolling contact of the ball 41 and the side wall of the support rod 1 can reduce the moving resistance of the sliding sleeve 4 on the support rod 1, so that the welding operation is more labor-saving.
Further, referring to fig. 3, a damping pin 43 is screwed on the side wall of the sliding sleeve 4, and one end of the damping pin 43 penetrates into the sliding sleeve 4 and slidably abuts against the side wall of the supporting rod 1. Can adjust the damping pin 43 to the pressure that supports of bracing piece 1 through rotating damping pin 43 to the movement resistance between adjustment sliding sleeve 4 and the bracing piece 1, thereby be suitable for different operating personnel's operation custom, the practicality is strong.
In some embodiments, referring to fig. 3, the sliding sleeve 4 is provided with an arc-shaped support plate 42 adapted to support the gun body or arm of the welding gun. If directly adopt welder to support the mode on sliding sleeve 4 and carry out welding operation, set up arc layer board 42 and can improve the bearing stability of welder, do benefit to and improve welding quality, if adopt the arm bearing to grip the mode of welder operation on sliding sleeve 4, set up arc layer board 42 and can increase the support area to the arm, improve operating personnel's operation comfort level.
In this embodiment, referring to fig. 3, the arc-shaped supporting plate 42 is horizontally and rotatably connected to the side wall of the sliding sleeve 4. When directly bearing the operation on arc layer board 42 to welder, set up arc layer board 42 into the mode of being connected with sliding sleeve 4 rotation, can make things convenient for the butt welder to pendulum the rifle operation, and is concrete, sets up the pivot on the diapire of arc layer board 42, utilizes the pivot to rotate with sliding sleeve 4's lateral wall to be connected, and simple structure is stable, supports reliably and pendulum the rifle nimble.
In order to improve the stability of the supporting rod 1 and avoid the supporting rod 1 from shaking, in some embodiments, referring to fig. 3 and 4, the two ends of the supporting rod 1 are respectively provided with a top rod 5 in a penetrating manner, and one end of the top rod 5 is used for being supported on the side wall 6 of the vehicle body in a pressing manner. Specifically, in order to avoid scratching the surface of the side wall by the ejector rod 5, the abutting end of the ejector rod 5 is embedded with a rubber head 50.
In some embodiments, the change gear 3 is a nylon wheel. And the nylon idler wheel is in rolling contact with the C groove 60, so that the groove wall of the C groove 60 can be prevented from being scratched.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Big line welding auxiliary device on EMUs automobile body inboard, its characterized in that includes:
a support bar;
the two connecting rods are arranged on the supporting rod at intervals along the axial direction of the supporting rod, and one end of each connecting rod extends upwards;
the two change gears are respectively and rotatably connected to the extending ends of the two connecting rods and are respectively used for being hung in a C groove on the side wall of the vehicle body;
the support rod is positioned between the two connecting rods and used for supporting an arm of a welding gun or an operator holding the welding gun.
2. The welding auxiliary device for the large wire on the inner side of the motor train unit body as claimed in claim 1, wherein threaded holes are respectively formed at two ends of the supporting rod, a fastening piece is rotatably arranged on the connecting rod in a penetrating manner, and the fastening piece is rotatably connected with the threaded holes.
3. The welding auxiliary device for the large line on the inner side of the motor train unit body as claimed in claim 2, wherein a plurality of clamping grooves are respectively distributed on the side walls of the two ends of the supporting rod at intervals along the circumferential direction of the two threaded holes, and a plurality of clamping teeth are distributed on the side wall of the connecting rod at intervals along the circumferential direction of the fastening piece; the latch and the clamping groove are correspondingly clamped.
4. The large-line welding auxiliary device on the inner side of the motor train unit body as claimed in claim 1, wherein a sliding sleeve is slidably sleeved on the support rod and used for supporting the welding gun or the arm.
5. The major line welding auxiliary device on the inside of motor train unit train body of claim 4, wherein the inner peripheral wall of the sliding sleeve is embedded with a plurality of rows of balls, and each row of balls are distributed at intervals along the axial direction of the supporting rod.
6. The welding auxiliary device for the large wire on the inner side of the motor train unit body as claimed in claim 4, wherein an arc-shaped supporting plate suitable for supporting the gun body or the arm of the welding gun is arranged on the sliding sleeve.
7. The assembly for assisting the mainline welding on the inner side of the motor train unit body according to claim 6, wherein the arc-shaped supporting plate is horizontally and rotatably connected to the side wall of the sliding sleeve.
8. The welding auxiliary device for the large wire on the inner side of the motor train unit body as claimed in claim 1, wherein ejector rods are respectively arranged at two ends of the supporting rod in a penetrating manner, and one end of each ejector rod is used for being supported on the side wall of the motor train unit body in a pressing manner.
9. The welding auxiliary device for the large wire on the inner side of the motor train unit body as claimed in claim 8, wherein a rubber head is embedded at the pressing end of the ejector rod.
10. The device for assisting the large-line welding on the inner side of the motor train unit body as claimed in any one of claims 1 to 9, wherein the change gear is a nylon roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121540997.1U CN215615944U (en) | 2021-07-07 | 2021-07-07 | Large-line welding auxiliary device on inner side of motor train unit body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121540997.1U CN215615944U (en) | 2021-07-07 | 2021-07-07 | Large-line welding auxiliary device on inner side of motor train unit body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215615944U true CN215615944U (en) | 2022-01-25 |
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ID=79948682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121540997.1U Active CN215615944U (en) | 2021-07-07 | 2021-07-07 | Large-line welding auxiliary device on inner side of motor train unit body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215615944U (en) |
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2021
- 2021-07-07 CN CN202121540997.1U patent/CN215615944U/en active Active
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