Cylindrical workpiece supporting and moving trolley

Abstract

A cylindrical workpiece supporting and moving trolley relates to the technical field of butt joint welding equipment and comprises a rack, a lifting mechanism, a supporting mechanism and a translation mechanism. The lifting mechanism comprises two lifting oil cylinders which are vertically mounted on the rack; the supporting mechanism comprises a supporting cross beam arranged in the Y direction, a V-shaped groove formed in the Y direction is concavely formed in the top of the supporting cross beam, and the bottom of the supporting cross beam is fixedly connected with two lifting oil cylinders; the translation mechanism comprises two wheel assemblies arranged on the machine frame in the X direction, one wheel assembly is in transmission connection with the translation motor through a transmission mechanism, the bottoms of the two wheel assemblies are provided with vehicle rail assemblies matched with the wheel assemblies, and the vehicle rail assemblies are arranged in the X direction. The cylindrical workpiece conveying device can support and convey cylindrical workpieces and is simple in structure; and moreover, the supporting height of cylindrical workpieces of different sizes can be adjusted, and the application range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of butt welding equipment, in particular to a cylindrical workpiece supporting mobile trolley. Background Art

[0002] The manufacturing process of welded steel pipes in the prior art usually involves bending and curling a steel plate into a cylindrical shape and then welding the two edges of the steel plate to obtain a steel pipe. The steel plate bending or curling process usually uses a bending machine to repeatedly press and bend the steel plate to bend the steel plate into a tubular shape. First, a bending machine is used to bend one half of the steel plate to form a C-shaped structure, and then the other half of the steel plate is bent by the bending machine to form another C-shaped structure. The two C-shaped structures are arranged opposite to each other to form a cylindrical workpiece with an opening. After the cylindrical workpiece is removed from the bending machine, the opening is manually spot welded and butt welded to form a complete steel pipe.

[0003] Existingly, when spot welding is performed on a cylindrical workpiece, a workpiece moving method is adopted. Specifically, for example, the invention patent with the authorization announcement number CN116984823B discloses an electric steel pipe joint welding device, which uses a conveying unit 200 to convey the steel pipe, but its length must be greater than the length of the steel pipe to meet the requirements of its conveying, and a number of transmission rollers 220 arranged at intervals must be set along the length direction of the conveying unit to move the steel pipe, which leads to its high cost; and, for steel pipes with smaller diameters, it does not have the lifting ability and cannot cooperate with the welding mechanism 400 to weld the steel pipe, resulting in its own small adjustment range, and cannot be applied to the welding of cylindrical workpieces with a large diameter variation range. Therefore, in order to complete the welding work, it is necessary to use a variety of conveying units with different heights to complete the conveying of steel pipes of different sizes, which increases the production cost. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is: to provide a cylindrical workpiece supporting mobile trolley, which can support and transport the cylindrical workpiece and has a simple structure; moreover, it can adjust the supporting height of cylindrical workpieces of different sizes to expand the scope of application.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] The cylindrical workpiece supporting mobile carriage comprises: a frame, a lifting mechanism, a supporting mechanism, and a translation mechanism;

[0007] The lifting mechanism comprises two lifting cylinders vertically mounted on the frame;

[0008] The support mechanism comprises a support beam arranged along the Y direction, a V-shaped groove arranged along the Y direction is recessed on the top of the support beam, and the bottom of the support beam is fixedly connected to the two lifting cylinders;

[0009] The translation mechanism includes two wheel assemblies arranged on the frame along the X direction, one of the wheel assemblies is connected to the translation motor through a transmission mechanism, and the bottoms of the two wheel assemblies are provided with matching track assemblies, which are arranged along the X direction.

[0010] Preferably, the two lifting cylinders are arranged along the Y direction, and the two lifting cylinders are fixedly connected to both ends of the supporting beam respectively.

[0011] Preferably, the included angle of the V-shaped groove is 145°.

[0012] Preferably, the V-shaped groove comprises two obliquely arranged supporting surfaces, and rollers arranged along the Y direction are rotatably mounted on the supporting surfaces.

[0013] Preferably, the support surface is provided with a recessed receiving groove arranged along the Y direction, and the roller is rotatably installed in the receiving groove.

[0014] Preferably, a vertical distance a between the outer wall surface of the roller and the supporting surface is 0 to 10 mm.

[0015] Preferably, the wheel assembly comprises a left wheel and a right wheel which are rotatably mounted on the frame along the Y direction, and an axle is connected between the left wheel and the right wheel.

[0016] Preferably, the transmission mechanism comprises: a driving sprocket, a driven sprocket, and a transmission chain;

[0017] The driving sprocket is fixedly connected to the power shaft of the translation motor;

[0018] The driven sprocket is coaxially and fixedly connected to the axle;

[0019] The transmission chain is wound between the driving sprocket and the driven sprocket.

[0020] Preferably, the frame includes a mounting beam arranged along the Y direction, and the translation motor is mounted on the mounting beam.

[0021] Preferably, a motor mounting seat is fixedly provided on the side wall of the mounting beam, and the translation motor is mounted on the motor mounting seat.

[0022] After adopting the above technical solution, the beneficial effects of the utility model are:

[0023] In the utility model, a frame, a lifting mechanism, a supporting mechanism, and a translation mechanism are provided; wherein the lifting mechanism comprises two lifting cylinders vertically mounted on the frame; the supporting mechanism comprises a supporting crossbeam arranged along the Y direction, the top of the supporting crossbeam is recessed with a V-shaped groove arranged along the Y direction, and the bottom of the supporting crossbeam is fixedly connected to the two lifting cylinders; the translation mechanism comprises two wheel assemblies arranged on the frame along the X direction, one of the wheel assemblies is connected to the translation motor through a transmission mechanism, and the bottoms of the two wheel assemblies are provided with track assemblies matched therewith, and the track assemblies are arranged along the X direction. The support beam can meet the requirements for supporting cylindrical workpieces. At the same time, the support beam is fixedly connected to two lifting cylinders, and the two lifting cylinders can change the support height of the support beam. For cylindrical workpieces of different sizes, it can ensure that the axis is located at the center of the clamping and aligning device, which meets the requirements of the subsequent clamping and aligning device for clamping and aligning the workpieces, and also improves the accuracy of the aligning and the welding quality between the gaps. Moreover, the cylindrical workpiece is driven to move by the support beam in a manner that the track assembly and the wheel assembly are adapted, which changes the original form of using multiple transmission rollers, reduces production costs, and reduces occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a structural schematic diagram of a cylindrical workpiece supporting mobile trolley according to an embodiment of the utility model;

[0026] Figure 2 yes Figure 1 The main view of

[0027] Figure 3 yes Figure 2 AA section view;

[0028] Figure 4 yes Figure 1 Exploded view after removing the track assembly;

[0029] In the figure:

[0030] 1. Frame; 11. Mounting beam;

[0031] 2. Lifting mechanism; 21. Lifting cylinder;

[0032] 3. Support mechanism; 31. Support beam; 32. V-shaped groove; 33. Support surface; 34. Roller; 35. Accommodating groove;

[0033] 4. Translation mechanism; 41. Wheel assembly; 411. Left wheel; 412. Right wheel; 413. Axle; 42. Track assembly;

[0034] 5. Transmission mechanism; 51. Driving sprocket; 52. Driven sprocket; 53. Transmission chain;

[0035] 6. Translation motor; 61. Motor mounting base. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] like Figures 1 to 4 As shown together, the utility model includes: a frame 1, a lifting mechanism 2, a supporting mechanism 3, and a translation mechanism 4; wherein the lifting mechanism 2 includes two lifting cylinders 21 vertically installed on the frame 1; the supporting mechanism 3 includes a supporting beam 31 arranged along the Y direction, the top of the supporting beam 31 is recessed with a V-shaped groove 32 arranged along the Y direction, and the bottom of the supporting beam 31 is fixedly connected to the two lifting cylinders 21; the translation mechanism 4 includes two wheel assemblies 41 arranged on the frame 1 along the X direction, one of the wheel assemblies 41 is transmission-connected to the translation motor 6 through a transmission mechanism 5, and the bottom of the two wheel assemblies 41 is provided with a track assembly 42 adapted thereto, and the track assembly 42 is arranged along the X direction. The support beam 31 can meet the requirements for supporting cylindrical workpieces. At the same time, the support beam 31 is fixedly connected to the two lifting cylinders 21. The two lifting cylinders 21 can change the support height of the support beam 31. For cylindrical workpieces of different sizes, it can ensure that the axis is located at the center of the clamping and aligning device, which meets the requirements of the subsequent clamping and aligning device for clamping and aligning the workpieces. Moreover, the accuracy of the aligning and the welding quality between the gaps are improved. Moreover, the vehicle track assembly 42 and the wheel assembly 41 are adapted to drive the cylindrical workpiece to move through the support beam 31, which changes the original form of using multiple transmission rollers, reduces production costs, and reduces occupied space.

[0038] In the present application, the two lifting cylinders 21 are arranged along the Y direction, and the two lifting cylinders 21 are fixedly connected to both ends of the supporting beam 31 respectively.

[0039] The angle of the V-groove 32 on the top of the support beam 31 is 145°. The setting of the V-groove 32 can prevent the cylindrical workpiece from rotating, and can ensure that the opening position on the cylindrical workpiece remains unchanged. If an automatic spot welding mechanism is used, the opening can be made to correspond to the welding mechanism, thereby improving the quality of spot welding; if manual spot welding is used, there is no need to search for the opening everywhere, thereby reducing the labor intensity of the workers. The V-groove 32 with an angle of 145° can prevent the cylindrical workpieces of various sizes from rotating.

[0040] The V-shaped groove 32 includes two obliquely arranged supporting surfaces 33 , on which a roller 34 arranged along the Y direction is rotatably mounted. The supporting surface 33 is concavely provided with an accommodating groove 35 arranged along the Y direction, in which the roller 34 is rotatably mounted.

[0041] When the cylindrical workpiece supporting mobile trolley of the present application is used, at least two trolleys are used to support the cylindrical workpiece, and the two trolleys are respectively supported at the two ends of the cylindrical workpiece, and the two trolleys move at the same time to drive and transport the cylindrical workpiece. When the moving speeds of the two trolleys are consistent, since the cylindrical workpiece is long and heavy, the friction force generated by its own weight applied to the supporting crossbeam 31 can ensure that there is no relative movement between it and the trolley, and the trolley will not be unable to drive the cylindrical workpiece to move due to the setting of the roller 34. However, when the moving speeds of the two trolleys are inconsistent, if the moving speed of one of the trolleys is relatively fast, this trolley will produce a traction force along the X direction on the cylindrical workpiece, so that the cylindrical workpiece has the possibility of moving along the X direction, wherein, if the traction force is not greater than the friction force, the cylindrical workpiece will not be displaced, and if the traction force is greater than the friction force, it will be able to be displaced due to the setting of the roller 34. Then, if the roller 34 is not provided, the outer wall of the cylindrical workpiece is in surface contact with the support surface 33. When the cylindrical workpiece is displaced, the outer wall of the cylindrical workpiece directly rubs against the support surface 33, which can cause damage to the outer wall of the cylindrical workpiece. In the present application, a roller 34 is provided, and there is line contact between the outer wall of the cylindrical workpiece and the roller 34, and the contact area is small. Moreover, when the cylindrical workpiece is displaced, the roller 34 can rotate on its own, which can ensure that the cylindrical workpiece moves along the X direction, prevent it from rubbing against the support surface 33, and improve the product quality of the cylindrical workpiece.

[0042] Preferably, the vertical distance a between the outer wall of the roller 34 and the support surface 33 is 0 to 10 mm. The setting of the roller 34 will not make the distance between the cylindrical workpiece and the support surface 33 too large, will not affect the stability of the support beam 31 on the cylindrical workpiece, and improve the use effect.

[0043] In the present application, the wheel assembly 41 includes a left wheel 411 and a right wheel 412 rotatably mounted on the frame 1 along the Y direction, and an axle 413 is connected between the left wheel 411 and the right wheel 412 .

[0044] The transmission mechanism 5 includes: a driving sprocket 51, a driven sprocket 52, and a transmission chain 53; wherein the driving sprocket 51 is fixedly connected to the power shaft of the translation motor 6; the driven sprocket 52 is coaxially fixedly connected to the axle 413; and the transmission chain 53 is wound between the driving sprocket 51 and the driven sprocket 52.

[0045] The frame 1 includes a mounting beam 11 arranged along the Y direction, and a translation motor 6 is installed on the mounting beam 11; at the same time, the arrangement of the mounting beam 11 also enhances the stability and firmness of the frame 1.

[0046] A motor mounting seat 61 is fixedly provided on the side wall of the mounting beam 11 , and a translation motor 6 is installed on the motor mounting seat 61 . The arrangement of the motor mounting seat 61 meets the installation requirements for the translation motor 6 ; preferably, the motor mounting seat 61 is arranged on a side close to the driving sprocket 51 .

[0047] The following is a brief description of its working principle based on the above structure:

[0048] When the present application is in use, two trolleys cooperate to support and transport the same cylindrical workpiece. The cylindrical workpiece formed by the bending machine is placed on the support beam 31 of the trolley, and the wheel assembly 41 cooperates with the track assembly 42 to drive the cylindrical workpiece on the support beam 31 to move into the clamping and seaming device. After that, the lifting cylinder 21 moves up to increase the support height of the support beam 31, thereby lifting the cylindrical workpiece to a predetermined position to meet the subsequent clamping and seaming requirements and spot welding requirements. After the spot welding is completed, the wheel assembly 41 cooperates with the track assembly 42 to drive the cylindrical workpiece to continue to move along the X direction and move out of the clamping and seaming device.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Cylindrical workpiece support mobile trolley, characterized in that: include: Frame, lifting mechanism, supporting mechanism, translation mechanism; The lifting mechanism comprises two lifting cylinders vertically mounted on the frame; The support mechanism comprises a support beam arranged along the Y direction, a V-shaped groove arranged along the Y direction is recessed on the top of the support beam, and the bottom of the support beam is fixedly connected to the two lifting cylinders; The translation mechanism includes two wheel assemblies arranged on the frame along the X direction, one of the wheel assemblies is connected to the translation motor through a transmission mechanism, and the bottoms of the two wheel assemblies are provided with matching track assemblies, which are arranged along the X direction.

2. The cylindrical workpiece supporting mobile carriage according to claim 1, characterized in that: The two lifting cylinders are arranged along the Y direction, and the two lifting cylinders are fixedly connected to the two ends of the supporting beam respectively.

3. The cylindrical workpiece supporting mobile carriage according to claim 1, characterized in that: The included angle of the V-shaped groove is 145°.

4. The cylindrical workpiece supporting mobile carriage according to claim 1, characterized in that: The V-shaped groove comprises two obliquely arranged supporting surfaces, and a rotating roller arranged along the Y direction is rotatably mounted on the supporting surfaces.

5. The cylindrical workpiece supporting mobile carriage according to claim 4, characterized in that: The supporting surface is concavely provided with a receiving groove arranged along the Y direction, and the rotating roller is rotatably installed in the receiving groove.

6. The cylindrical workpiece supporting mobile carriage according to claim 4, characterized in that: The vertical distance a between the outer wall surface of the rotating roller and the supporting surface is 0 to 10 mm.

7. The cylindrical workpiece supporting mobile carriage according to claim 1, characterized in that: The wheel assembly comprises a left wheel and a right wheel which are rotatably mounted on the frame along the Y direction, and an axle is connected between the left wheel and the right wheel.

8. The cylindrical workpiece supporting mobile carriage according to claim 7, characterized in that: The transmission mechanism comprises: a driving sprocket, a driven sprocket, and a transmission chain; The driving sprocket is fixedly connected to the power shaft of the translation motor; The driven sprocket is coaxially and fixedly connected to the axle; The transmission chain is wound between the driving sprocket and the driven sprocket.

9. The cylindrical workpiece supporting mobile carriage according to claim 1, characterized in that: The frame comprises a mounting beam arranged along the Y direction, and the translation motor is mounted on the mounting beam.

10. The cylindrical workpiece supporting movable carriage according to claim 9, characterized in that: A motor mounting seat is fixedly arranged on the side wall of the mounting beam, and the translation motor is mounted on the motor mounting seat.

Images