CN211028503U

CN211028503U - Automatic rotary welding equipment for semitrailer traction pin

Info

Publication number: CN211028503U
Application number: CN201922139834.1U
Authority: CN
Inventors: 范宗海; 郑凯凯; 何剑桥
Original assignee: Dayun Automobile Co Ltd
Current assignee: Dayun Automobile Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-17
Anticipated expiration: 2029-12-04

Abstract

The utility model relates to a semitrailer towing pin welding field specifically is a semitrailer towing pin autogiration welding equipment. The automatic welding machine comprises a platform, a stand column, a stroke air cylinder, an air cylinder pull plate, a motor, the power output end of the motor stretches out a support plate from bottom to top and installs a driving wheel located below the support plate, a driven wheel located below the support plate is connected to the driving wheel through a belt, a hollow shaft is coaxially fixed to the driven wheel, an electric slip ring is movably arranged on the hollow shaft in the support plate in a penetrating mode, the electric slip ring is fixedly arranged on the hollow shaft above the support plate, an electric brush electrically connected with the electric slip ring is installed on the support plate, a wire welding disc and a wire feeding machine are installed on the upper portion of. The utility model reduces the labor intensity, improves the product quality, ensures the consistency of the product and reduces the labor cost; the effect that the achievement makes the towing pin rotary equipment, ordinary worker can replace the welder operation.

Description

Automatic rotary welding equipment for semitrailer traction pin

Technical Field

The utility model relates to a semitrailer towing pin welding field specifically is a semitrailer towing pin autogiration welding equipment.

Background

The welding of the towing pin in the trailer industry adopts manual welding, and has a plurality of problems. Firstly, the labor intensity of workers is high, and the welding benefit of the workers is low. The welding seam is not uniform in forming, welding beading and air holes are easy to occur, the consistency of the product quality is poor, and the overall quality of the trailer is influenced.

In order to improve the quality of the semitrailer in detail, automatic welding equipment is urgently needed to solve the welding problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve a great deal of problem that manual welding towing pin exists, provide a semitrailer towing pin autogiration welding equipment.

The utility model discloses a realize through following technical scheme: an automatic rotary welding device for a semitrailer towing pin comprises a platform, wherein a stand column is arranged on the platform, at least one stroke cylinder is arranged on the upper portion of the stand column, the end portion of a telescopic rod of the stroke cylinder vertically extends downwards, a cylinder pull plate is arranged at the end portion of the telescopic rod of the stroke cylinder, all the cylinder pull plates are fixedly arranged on a fixed box plate together, a supporting plate is fixedly arranged on the upper level of the fixed box plate, a motor is arranged above the supporting plate, a power output end of the motor extends out of the supporting plate from top to bottom and is provided with a driving wheel positioned below the supporting plate, a driven wheel positioned below the supporting plate is connected onto the driving wheel through a belt, a hollow shaft is fixedly arranged on the driven wheel coaxially, an electric slip ring is fixedly arranged on the hollow shaft movably arranged on the supporting plate and positioned above the supporting plate, an electric brush electrically connected with the, the end part of the hollow shaft positioned below the driven wheel is provided with a welding gun, and a welding wire on the welding wire disc is conveyed to the welding gun through the wire feeder and the hollow shaft;

a gas pipe is connected on the hollow shaft above the electric slip ring in a sealing and rotating way, and one end of the gas pipe is connected to the CO₂The gas source and the other end are sent to the welding gun through the hollow shaft.

As a further improvement of the technical scheme of the utility model, the hollow shaft bottom is installed with towing pin central locating hole interference fit's conical head.

As the utility model discloses technical scheme's further improvement, stand upper portion level is equipped with the cylinder backup pad, the stroke cylinder is installed in the cylinder backup pad.

As the utility model discloses technical scheme's further improvement is equipped with the limiting plate on the stand that is located cylinder backup pad below, be equipped with an at least and cylinder backup pad fixed complex guide post along vertical direction on the limiting plate, the cylinder arm-tie slides and wears to arrange in on the guide post.

As a further improvement of the technical scheme of the utility model, clearance fit has the movable guide seat with fixed boxboard fixed connection on the direction stand.

As a further improvement of the technical proposal of the utility model, the air pipe is provided with an air passage valve.

As the utility model discloses technical scheme's further improvement, the gas circuit valve is installed on the bracing piece, and the bracing piece supports on the platform.

As the utility model discloses technical scheme's further improvement, the package is installed to the hollow shaft tip and is pressed from both sides, installs the guide block on the package presss from both sides, installs universal clamp on the guide block, and welder installs on universal clamp.

As the technical scheme of the utility model further improve, the welding wire on the wire reel is carried to welder through the wire feed welded tube of wearing to arrange in the hollow shaft.

As the utility model discloses technical scheme's further improvement is connected with between stand relative with the stroke cylinder and the ground and draws the iron chain to one side.

Semitrailer towing pin autogiration welding equipment, compare with prior art and have following beneficial effect:

⑴ solves the quality problems of uneven manual welding speed, poor molding, easy generation of air holes, welding beading and the like;

⑵ solves the problem that manual welding has many times of arc starting and arc stopping and can not achieve one-step forming welding;

⑶ welding automatic descending gun, automatic lifting gun after welding, automatic clamping, and automatic withdrawing after welding;

⑷, the labor intensity is reduced, the product quality is improved, the consistency of the product is ensured, and the labor cost is reduced;

⑸ the effect to be achieved is to enable the tow pin rotating apparatus to be operated by a craft instead of an electric welder.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model discloses a semitrailer towing pin autogiration welding equipment's front view.

Fig. 2 is a side view of fig. 1 (the upper part of the support plate is not shown).

Fig. 3 is a top view of the platform.

In the figure: 1-support rod, 2-gas path valve, 3-CO₂A main air pipe, a 5-air cylinder supporting plate, a 6-stroke air cylinder, a 7-guiding upright post, an 8-diagonal iron chain, a 9-turnbuckle, a 10-upright post, an 11-underframe cross beam, a 12-underframe longitudinal beam, a 13-underframe diagonal strut, a 14-cone head, a 15-welding gun, a 16-limiting plate, a 17-movable guide seat, an 18-air cylinder pulling plate, a 19-fixed box plate, a 20-driving wheel, a 21-belt, a 22-motor, a 23-supporting plate, a 24-driven wheel, a 25-electric slip ring, a 26-supporting platform, a 27-air pipe, a 28-electric brush, a 29-wire feeder, a 30-lifting rod, a 31-wire reel, a 32-air source control box, a 33-power source control box, a 34-wire feeding welding pipe and a 35-guiding block, 36-Universal clip37-a communication hole, 38-a wrapping clip, 39-a taper shank, 40-a platform and 41-a hollow shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment provides an automatic rotary welding device for a semitrailer towing pin, which comprises a platform 40, wherein an upright post 10 is arranged on the platform 40, at least one stroke cylinder 6 is arranged on the upper portion of the upright post 10, the end portion of a telescopic rod of the stroke cylinder 6 extends vertically downwards, the end portion of a telescopic rod of the stroke cylinder 6 is provided with a cylinder pulling plate 18, all the cylinder pulling plates 18 are jointly and fixedly arranged on a fixed box plate 19, a supporting plate 23 is horizontally and fixedly arranged on the fixed box plate 19, a motor 22 is arranged above the supporting plate 23, the power output end of the motor 22 extends out of the supporting plate 23 from top to bottom and is provided with a driving wheel 20 positioned below the supporting plate 23, a driven wheel 24 positioned below the supporting plate 23 is connected to the driving wheel 20 through a belt 21, a hollow shaft 41 is coaxially and fixedly arranged on the driven wheel 24, the hollow shaft 41 movably, a brush 28 electrically connected with the electric slip ring 25 is arranged on the support plate 23, a wire reel 31 and a wire feeder 29 are arranged on the upper part of the hollow shaft 41 above the electric slip ring 25, a welding gun 15 is arranged at the end part of the hollow shaft 41 below the driven wheel 24, and welding wires on the wire reel 31 are conveyed to the welding gun 15 through the wire feeder 29 and the hollow shaft 41;

a gas pipe 27 is connected in a sealed and rotatable manner to the hollow shaft 41 above the electrical slip ring 25, one end of the gas pipe 27 being coupled to the CO₂The gas source, the other end, is fed to the welding gun 15 through a hollow shaft 41.

In this embodiment, the number of the stroke cylinders 6 is two, and the stroke cylinders are arranged on two sides of the upright post 10 side by side. When in use, the traction plate is arranged onThe platform 10 and the towing pin to be welded is placed on the towing plate. And starting the stroke cylinder 6, extending the telescopic rod of the stroke cylinder 6 downwards, and controlling all the components on the cylinder pulling plate 18, the fixed box plate 19 and the supporting plate 23 to move downwards until the welding gun 15 moves to the traction pin. The motor 22 is started, the motor 22 controls the driven wheel 24 coaxial with the hollow shaft 41 to rotate through the driving wheel 20 and the belt 21, the rotating hollow shaft 41 enables the welding gun 15 to rotate along the annular welding position of the traction pin and the traction plate, the power line of the welding gun 15 penetrates through the hollow shaft 41 and is connected with an external power supply through the electric slip ring 25 and the electric brush 28, the power line of the wire feeder 29 is connected to the electric slip ring 25 and is connected with the external power supply through the electric slip ring 25 and the electric brush 28, meanwhile, the welding wire on the wire reel 31 is conveyed to the welding gun 15 through the wire feeder 29 and the hollow shaft 41, the air pipe 27 conveys CO to₂And delivered to the welding torch 15. In this example, the CO₂The annular welding seam between the traction pin and the traction plate can be prevented from being oxidized. The present embodiment accomplishes the rotation of the welding gun 15 by means of the motor 22. Specifically, the stop of the welding operation can be realized by a proximity switch, and the synchronism of the welding and the rotation of the welding gun 15 can be realized by a relay. Preferably, the motor 22 is a servo motor, and the servo motor can realize the rotation of the welding gun 15.

The automatic rotary welding equipment for the semitrailer traction pin is convenient and high in efficiency; the welding quality is good; the manual skill requirement is low.

As shown in fig. 1, the supporting plate 23 is externally connected with an enclosure 42 connected with the fixed box plate 19, and the enclosure 42 can prevent workers from accidentally touching the electric brushes 28 and the electric slip rings 25.

In this embodiment, the hollow shaft 41 above the welding gun 15 is provided with a communication hole 37 communicating with the outside, and the power line of the welding gun 15 can be connected with an external power supply through the electric slip ring 25 and the brush 28 along the communication hole 37 and the shaft hole of the hollow shaft 41. The welding wire on the wire reel 31 can be fed to the welding gun 15 through the wire feeder 29, the shaft hole of the hollow shaft 41 and the communication hole 37, and the further air pipe 27 can provide CO for the welding gun 15 through the shaft hole of the hollow shaft 41 and the communication hole 37₂A gas.

Specifically, the bottom of the hollow shaft 41 is provided with a conical head 14 which is in interference fit with a central positioning hole of the traction pin. Therefore, the hollow shaft 41 and the traction pin can be matched in a positioning mode, and the phenomenon of deviation in the welding process is avoided. As shown in fig. 2, a taper shank 39 with a taper head 14 is mounted on the shaft hole of the hollow shaft 41, and the taper shank 39 is detachably mounted in the shaft hole of the hollow shaft 41. The detachable structure of the taper shank 39 and the hollow shaft 41 can be a threaded connection structure. When the welding gun 15 is used, the direction of the loosening of the threads is opposite to the rotating direction of the motor 22, so that the loosening of the taper shank 39 and the hollow shaft 41 when the motor 22 controls the welding gun 15 to rotate can be avoided.

In this embodiment, the upper portion of the upright post 10 is horizontally provided with a cylinder support plate 5, and the stroke cylinder 6 is installed on the cylinder support plate 5. The cylinder support plate 5 provides a support platform for the stroke cylinder 6. As shown in fig. 1, in order to enhance the mounting strength of the stroke cylinder 6 on the cylinder support plate 5, a cylinder support rib 4 is connected between the stroke cylinder 6 side and the cylinder support plate 5. The cylinder support ribs 4 are located on the side remote from the fixed box plate 19.

Further, in order to reduce the occurrence of lateral offset of the fixed box plate 19 in the vertical displacement process, the vertical column 10 located below the cylinder support plate 5 is provided with a limiting plate 16, the limiting plate 16 is provided with at least one guide vertical column 7 fixedly matched with the cylinder support plate 5 in the vertical direction, and the cylinder pulling plate 18 is slidably arranged on the guide vertical column 7. Therefore, the end part of the telescopic rod of the stroke cylinder 6 controls the cylinder pulling plate 18 to move up and down along the guide upright post 7 when moving up and down, and the welding precision is improved.

Preferably, the guide upright 7 is in clearance fit with a movable guide seat 17 fixedly connected with a fixed box plate 19. The movable guide seat 17 is matched with the cylinder pulling plate 18 to improve the stability of the fixed box plate 19.

Further, an air path valve 2 is installed on the air pipe 27. The air outlet end of the air path valve 2 is an air pipe 27, and the air inlet end of the air path valve is CO₂ Main gas pipe 3, CO₂The main gas pipe 3 is connected to CO₂The gas source can open and close CO at any time through the gas path valve 2₂A gas.

Preferably, the air passage valve 2 is installed on the support rod 1, and the support rod 1 is supported on the platform 40. As shown in fig. 1, the support pole 1 in this embodiment is supported on a platform 40 by a column 10. It is of course also possible to support the support bar 1 directly on the platform 40.

In order to realize the adjustability of the welding gun 15, the end part of the hollow shaft 41 is provided with a wrapping clamp 38, a guide block 35 is arranged on the wrapping clamp 38, a universal clamp 36 is arranged on the guide block 35, and the welding gun 15 is arranged on the universal clamp 36. In this embodiment, the collet 38 can be clamped to the hollow shaft 41 according to the specific height requirement, and the universal clamp 36 on the guide block 35 can adjust the angle of the welding gun 15 in the transverse and longitudinal directions, so as to adjust the welding gun 15.

For ease of handling, the wire from the wire reel 31 is fed to the welding gun 15 through a wire feed tube 34 that is disposed through a hollow shaft 41. In particular, the power cord and the air tube 27 of the welding gun 15 can also be inserted into the wire-feeding welding tube 34. The wire feed weld tube 34 in this embodiment is made of a soft material, and the soft material of the wire feed weld tube 34 facilitates the position adjustment of the welding gun 15.

Furthermore, a diagonal iron chain 8 is connected between the upright post 10 opposite to the stroke cylinder 6 and the ground. The inclined pull iron chain 8 provided by the embodiment can improve the stability of the upright post 10 because the upright post 10 has more parts on the side of the stroke cylinder 6.

As shown in fig. 1, in order to improve the adjustability of the oblique-pulling iron chain 8, a turn buckle 9 is connected in series to the oblique-pulling iron chain 8, and the tightness of the oblique-pulling iron chain 8 can be adjusted by the turn buckle 9.

In this embodiment, the gas source control box 32 and the power control box 33 are further included, and the gas source control box 32 is CO₂ Main gas pipe 3 for supplying CO₂And meanwhile, the gas source control box 32 can control the opening of the gas path valve 2 and the welding of the welding gun 15 to be synchronously carried out, and can also control the closing of the gas path valve 2 and the welding stop of the welding gun 15 to be synchronously carried out. The brushes 28 in this embodiment are connected by leads to a power control box 33, and the power control box 33 provides external power to the wire feeder 29 and the welding gun 15.

As shown in fig. 3, the present embodiment provides a specific implementation manner of a platform 40, that is, the platform includes an outer frame surrounded by two chassis beams 11 and two chassis stringers 12, an inner edge of the outer frame is adapted to a traction plate, and further includes chassis diagonal braces 13 welded between adjacent chassis beams 11 and chassis stringers 12, where the chassis diagonal braces 13 are located on lower surfaces of the chassis beams 11 and the chassis stringers 12, so that the lower surface of the traction plate can be supported on the chassis diagonal braces 13, and meanwhile, the traction plate can avoid lateral displacement on the platform 40 due to the adaptation of the traction plate to the inner edge of the outer frame, thereby improving welding accuracy.

As shown in fig. 1, in order to facilitate the wire feeder 29 and the wire reel 31 to be supported on the upper portion of the hollow shaft 41, the upper end of the hollow shaft 41 is provided with a supporting platform 26, and the supporting platform 26 provides a mounting surface for the wire feeder 29 and the wire reel 31. More preferably, the wire reel 31 is mounted to the support platform 26 by a lift rod 30, such that the distance between the wire reel 31 and the wire feeder 29 can be adjusted by the lift rod 30 as desired.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a semitrailer towing pin autogiration welding equipment, includes platform (40), its characterized in that, be equipped with stand (10) on platform (40), stand (10) upper portion is equipped with at least one stroke cylinder (6), the vertical downwardly extending of telescopic link tip of stroke cylinder (6) and the telescopic link tip of stroke cylinder (6) are equipped with cylinder arm-tie (18), all cylinder arm-tie (18) set firmly on fixed boxboard (19) jointly, fixed boxboard (19) are improved level and have set firmly backup pad (23), motor (22) are installed to backup pad (23) top, the power take off end of motor (22) is from last to stretching out backup pad (23) and installing action wheel (20) that are located backup pad (23) below from bottom to top, be connected with from driving wheel (24) that are located backup pad (23) below through belt (21) on action wheel (20), a hollow shaft (41) is coaxially and fixedly arranged on the driven wheel (24), an electric slip ring (25) is fixedly arranged on the hollow shaft (41) which is movably arranged on the supporting plate (23) in a penetrating way and positioned above the supporting plate (23), an electric brush (28) which is electrically connected with the electric slip ring (25) is arranged on the supporting plate (23), a wire reel (31) and a wire feeder (29) are arranged at the upper part of the hollow shaft (41) which is positioned above the electric slip ring (25), a welding gun (15) is arranged at the end part of the hollow shaft (41) which is positioned below the driven wheel (24), and welding wires on the wire reel (31) are conveyed to the welding gun (15) through the wire feeder (29) and the;

a gas pipe (27) is connected on the hollow shaft (41) above the electric slip ring (25) in a sealing and rotating way, and one end of the gas pipe (27) is connected to CO₂The other end of the air source is sent to the welding gun (15) through a hollow shaft (41).

2. The automatic rotary welding device for the semitrailer towing pin according to claim 1, characterized in that a conical head (14) in interference fit with a central positioning hole of the towing pin is installed at the bottom of the hollow shaft (41).

3. The automatic rotary welding equipment for the semitrailer towing pin according to claim 1 or 2, characterized in that the upper part of the upright post (10) is horizontally provided with a cylinder support plate (5), and the stroke cylinder (6) is installed on the cylinder support plate (5).

4. The automatic rotary welding equipment for the semitrailer towing pin according to claim 3, characterized in that a limiting plate (16) is arranged on the column (10) below the cylinder supporting plate (5), at least one guide column (7) fixedly matched with the cylinder supporting plate (5) is arranged on the limiting plate (16) along the vertical direction, and the cylinder pulling plate (18) is slidably arranged on the guide column (7).

5. The automatic spin welding equipment of semitrailer draw pins according to claim 4, characterized in that the guide posts (7) are clearance-fitted with movable guide seats (17) fixedly connected with the fixed box plates (19).

6. The automatic spin welding equipment of semitrailer towing pins according to claim 1 or 2, characterized in that the air pipe (27) is provided with an air passage valve (2).

7. The automatic rotary welding equipment for the semitrailer towing pin according to claim 6, characterized in that the gas circuit valve (2) is installed on the supporting rod (1), and the supporting rod (1) is supported on the platform (40).

8. The automatic rotary welding device for the semitrailer towing pin according to claim 1 or 2, characterized in that a wrapping clamp (38) is installed at the end of the hollow shaft (41), a guide block (35) is installed on the wrapping clamp (38), a universal clamp (36) is installed on the guide block (35), and the welding gun (15) is installed on the universal clamp (36).

9. The automatic rotary welding equipment for semitrailer draw pins according to claim 1 or 2, characterized in that the welding wire on the wire reel (31) is fed to the welding gun (15) through a wire feed pipe (34) inserted into the hollow shaft (41).

10. The automatic rotary welding equipment for the semitrailer towing pin according to claim 1 or 2, characterized in that a diagonal iron chain (8) is connected between the upright (10) opposite to the stroke cylinder (6) and the ground.