CN206200317U - A kind of automatic welding blows cuts lathe - Google Patents

Abstract

The utility model discloses an automatic welding and blowing machine tool, which comprises a control mechanism, a base, a roller driving mechanism and a welding and blowing mechanism relatively arranged on the base, and the roller driving mechanism includes a roller support frame symmetrically arranged on the base. The outside of the roller supporting frame is provided with a roller supporting seat, and the center of the two roller supporting seats is provided with a transmission shaft, and the transmission shaft is connected to a pair of driving rollers; the welding blowing mechanism includes a gantry type welding frame, two A degree of freedom displacement mechanism, a mechanical arm connected to a two-degree-of-freedom displacement mechanism, the front end of the mechanical arm is provided with a welding head and an electrode plate that can penetrate the electrode, and an electrode conveying mechanism is also provided on the mechanical arm; the control mechanism includes a PLC Controller, hall sensor, cycle trigger mechanism. The utility model has the advantages of simple mechanism, strong adaptability, high efficiency of welding and blowing, high degree of automation, convenient operation, etc., has strong practicability and broad market prospect.

Description

An automatic welding blowing machine tool

technical field

The utility model relates to an automatic welding and blowing machine tool, in particular to a device for cleaning impurities on the surface of rollers and repairing defects on the surface of rollers, and is especially suitable for processing medium and large rollers.

Background technique

The roller is a cylindrical part, which is the main force-bearing part that makes the sheet material bend plastically in various plate rolling machines. It is also widely used in various mechanical transmission systems such as papermaking and packaging. During the long-term manufacturing process, the surface of the roller will have different degrees of protrusions and depressions. In addition, in the production lines of pickling and cold rolling, galvanizing, and painting, the surface of the roller will be adhered to oil stains, residues, foreign objects, etc. These surfaces The existence of defects directly affects the quality of the produced products. Therefore, in order to ensure product quality, it is necessary to clean and repair the impurities and defects on the surface of the roller.

At present, there is no efficient and adaptable equipment for cleaning and repairing impurities and defects on the surface of the roller. The common treatment method in China is to scrape the surface of small rollers with a scraper or a self-designed roller scraper. This treatment method is not only inefficient, the scraping is not clean, the scraper is easy to wear and deform, and it cannot handle medium and large rollers, and in most cases, the impurities have been tightly bonded to the surface of the roller, and ordinary scrapers cannot handle it at all. It scrapes. Therefore, there is an urgent need for an efficient and reliable equipment with a wide processing range and strong adaptability, especially capable of cleaning the surface impurities of medium and large rollers and repairing surface defects.

Utility model content

In view of the above technical problems, the utility model provides an automatic welding machine tool which can not only be used for different types of rollers, especially medium and large rollers, but also can clean and repair the impurities and defects on the surface of the rollers. The automatic welding machine tool has high operation precision; it can perform welding and blowing treatment for impurities and defects on the surface of different types of rollers, with strong adaptability and high processing efficiency; using PLC as the controller system has high stability, high degree of automation and flexible operation.

The technical scheme of the utility model is as follows:

An automatic welding and blowing machine tool, including a control mechanism, a base, a roller driving mechanism and a welding and blowing mechanism relatively arranged on the base,

The roller driving mechanism includes a roller supporting frame symmetrically arranged on the base, and roller supporting seats are arranged on the outside of the roller supporting frame, and a transmission shaft is provided for the center rotation of the two roller supporting seats, and the transmission shaft and a Drive connection to the transmission roller connected to the electromagnetic speed regulating motor;

The welding blowing mechanism includes a gantry type welding frame, a two-degree-of-freedom displacement mechanism arranged on the beam of the welding frame, a mechanical arm connected to the two-degree-of-freedom displacement mechanism, and the front end of the mechanical arm is arranged There is a welding head and an electrode plate that can penetrate the welding rod, and an airflow conduit is also arranged in the welding head, and the airflow conduit is connected with the airflow delivery gun connected to the air pump, and the welding rod delivery mechanism is also arranged on the mechanical arm;

The control mechanism includes a PLC controller, a Hall sensor, and a periodic trigger mechanism, and the PLC controller is respectively connected to a Hall sensor, a travel switch, an electromagnetic speed-regulating motor, a two-degree-of-freedom displacement mechanism, and an electrode conveying mechanism. The Hall sensor is arranged on the mechanical arm and passed through by the power line of the welding head, and the periodic triggering mechanism is used to trigger the two-degree-of-freedom displacement mechanism to move laterally for a predetermined distance when the transmission shaft rotates one revolution.

Further, the two-degree-of-freedom displacement mechanism includes a horizontal movement mechanism and a vertical movement mechanism, and the horizontal movement mechanism includes a horizontally adjustable stepper motor, a transmission gear connected to the output shaft of the horizontally adjusted stepper motor, and is horizontally arranged on The horizontal slide rail and the rack guide rail on the horizontal plate, the transmission gear and the rack guide rail are meshed, and the horizontal slide rail rollers are also arranged on the horizontal slide rail; the vertical movement mechanism includes a vertical slide rail, a vertical adjustment stepping motor connected with the vertical slide rail drive.

Further, the mechanical arm includes a connecting plate, a rotating joint and an adapter plate in sequence from front to rear, and the angle between the connecting plate and the adapter plate is adjusted through the rotating joint.

Further, the rotary joint includes a rotary adjustment roller, and the rotation of the rotary adjustment roller adjusts the angle between the connecting plate and the adapter plate.

Further, the welding rod conveying mechanism includes a welding rod guide plate, a welding rod conveying roller set, and a welding rod guide roller arranged sequentially on the mechanical arm along the welding rod conveying direction.

Further, the welding rod conveying roller set includes welding rod conveying rollers, pressing blocks, locking handles, and welding rod conveying motors, the described welding rod conveying rollers are drivingly connected to the welding rod conveying motors, and the pressing blocks are hinged through connecting rods On the mechanical arm and opposite to the welding rod conveying roller, the locking handle is disposed opposite to the pressing block, and is used for adjusting and locking the pre-tightening force of the pressing block.

Further, the cycle triggering mechanism includes a travel switch and a driving lever, the travel switch is set on the roller support frame, and the driving lever is set on the transmission shaft, when the transmission shaft rotates one revolution, the driving lever triggers the stroke switch, and then the PLC controller triggers the two-degree-of-freedom displacement mechanism to move laterally for a predetermined distance.

Further, the welding head and the airflow conduit pass through the electrode plate, and the airflow conduit is inside the welding head, and a gap of 5-8 mm is maintained between the inner hole of the airflow conduit and the welding rod.

Further, the included angle between the welding head and the adapter plate is 110°-140°.

Further, the welding frame is fixed on the base 1 through the frame connecting plate.

Compared with the prior art, the utility model has the advantages of simple mechanism, strong adaptability, high welding blowing efficiency, high degree of automation, and convenient operation; moreover, it can flexibly adjust the corner of the welding device, and can accurately control the welding angle during the working process. The distance between the electrode and the surface of the roller can well control the discharge gap, so as to ensure the precision of welding blowing; it has strong practicability and has a broad market prospect.

Description of drawings

Fig. 1 is a front isometric view of the overall structure of an embodiment of the present invention.

Fig. 2 is a rear isometric view of the overall structure of the embodiment of the present invention.

Fig. 3 is a front view of the welding and blowing mechanism of the embodiment of the present invention.

Fig. 4 is a rear view of the welding blowing mechanism of the embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of the welding head and the electrode plate of the embodiment of the present invention.

As shown in the figure: 1 is the base, 2 is the electromagnetic speed regulating motor, 3 is the transmission shaft, 4 is the roller support seat, 5 is the roller support frame, 6 is the roller to be processed, 7 is the electrode guide roller, 8 is the connecting plate, 9 is a rotation adjustment roller, 10 is an electrode delivery roller, 11 is an electrode guide plate, 12 is an adapter plate, 13 is an adapter plate, 14 is a vertical adjustment stepper motor, 15 is a horizontal adjustment stepper motor, 16 is a horizontal slide rail, 17 is the transmission gear, 18 is the rack guide rail, 19 is the vertical slide rail, 20 is the horizontal slide rail roller, 21 is the beam, 22 is the base fixing plate, 23 is the welding frame, 24 is the rack connecting plate, and 25 is the air delivery Gun, 26 is electrode plate, and 27 is welding head, and 28 is welding rod conveying motor, and 29 is pinching roller, and 30 is locking handle, and 31 is pinching block, and 32 is driving roller, and 33 is air duct.

detailed description

The purpose of the utility model is further described in detail through specific examples below, and the examples cannot be repeated here one by one, but the implementation of the utility model is not therefore limited to the following examples.

Example 1

As shown in Figures 1 to 5, an automatic welding blowing machine tool includes a control mechanism, a base 1, a roller driving mechanism and a welding blowing mechanism relatively arranged on the base 1,

The roller driving mechanism includes a roller support frame 5 symmetrically arranged on the base 1, the outer side of the roller support frame 5 is provided with a roller support seat 4, and the center of the two roller support seats 4 is provided with a transmission shaft 3, so The drive shaft 3 described above is driven and connected to a pair of drive rollers 33 connected to the electromagnetic speed regulating motor 2;

As shown in Fig. 3 and Fig. 4, the described welding and blowing mechanism includes a gantry type welding frame 23, a two-degree-of-freedom displacement mechanism arranged on the beam 21 of the welding frame 23, connecting the two-degree-of-freedom displacement The mechanical arm of mechanism, described welding frame 23 is fixed on the base 1 by frame connecting plate 24, and the front end of described mechanical arm is provided with welding head 27 and electrode plate 26 that can penetrate welding rod 12, and described welding head An airflow conduit 33 is also arranged in the 27, and the airflow conduit 33 communicates with the airflow delivery gun 25 connected to the air pump, and the mechanical arm is also provided with an electrode delivery mechanism;

The control mechanism includes a PLC controller, a Hall sensor, and a periodic trigger mechanism, and the PLC controller is respectively connected to the Hall sensor, a travel switch, an electromagnetic speed-regulating motor 2, a two-degree-of-freedom displacement mechanism, and an electrode conveying mechanism. , the Hall sensor is arranged on the mechanical arm and passed through by the power line of the welding head 27, the periodic trigger mechanism includes a travel switch and a shift lever, and the travel switch is arranged on the roller support frame 5, so The driving lever described above is arranged on the transmission shaft 3, and when the transmission shaft 3 rotates one revolution, the driving lever triggers the travel switch, and then the PLC controller triggers the two-degree-of-freedom displacement mechanism to move laterally for a predetermined distance.

Specifically, the two-degree-of-freedom displacement mechanism includes a horizontal movement mechanism and a vertical movement mechanism, and the horizontal movement mechanism includes a horizontal adjustment stepper motor 15, a transmission gear 17 connected to the output shaft of the horizontal adjustment stepper motor 15 1. The horizontal slide rail 16 and the rack guide rail 18 arranged horizontally on the horizontal plate 21, the transmission gear 17 is meshed with the rack guide rail 18, and the horizontal slide rail 16 is also provided with horizontal slide rail rollers 20. The vertical movement mechanism includes a vertical slide rail 19 and a vertical adjustment stepping motor 14 drivingly connected with the vertical slide rail 19 .

As shown in Figures 3 and 4, the mechanical arm includes a connecting plate 8, a rotating joint, and an adapter plate 13 from front to back, and the angle between the connecting plate 8 and the adapter plate 13 is adjusted through the rotating joint. The rotary joint includes a rotary adjustment roller 9 , and the rotation of the rotary adjustment roller 9 adjusts the angle between the connecting plate 8 and the adapter plate 13 .

As shown in FIG. 3 , the electrode conveying mechanism includes an electrode guide plate 11 , an electrode conveying roller set, and an electrode guide roller 7 arranged sequentially on the mechanical arm along the electrode conveying direction. The welding rod conveying roller group comprises welding rod conveying roller 10, pressing block 31, locking handle 30, welding rod conveying motor 28, and described welding rod conveying roller 10 is connected with the driving of welding rod conveying motor 28, and described pressing block 31 The connecting rod is hinged on the mechanical arm and is arranged opposite to the welding rod conveying roller 10, and the locking handle 30 is arranged opposite to the pressing block 31 for adjusting and locking the pre-tightening force of the pressing block 31 , so that the welding rod conveying roller 10 and the pressing block 31 drive the welding rod 27 of corresponding thickness with a suitable distance and frictional force.

The base 1 of the present embodiment is mainly formed by welding several square bar steels arranged in parallel and the base fixing plate 22, and an integrally poured cast iron base may also be used.

Example 2

As shown in 5, the difference between this example and Example 1 is that the welding head 27 and the airflow conduit 33 both pass through the electrode plate 26, and the airflow conduit 33 is inside the welding head 27, keeping a gap of 5-8 mm with the electrode 12.

Example 3

The difference between this example and Example 1 is that the angle between the welding head 27 and the adapter plate 13 is 110°-140°, and the rotating adjustment roller 9 can be rotated to adjust the angle between the connecting plate 8 and the adapter plate 13, so as to meet the needs of the job.

The working principle of the above-mentioned embodiment is as follows:

Install the surface-to-be-processed roller 6 on the roller support frame 5. According to the size and surface characteristics of the to-be-processed roller 6, under the drive of the vertical adjustment stepper motor 14, the welding device moves horizontally to a suitable position, and uses the rotation to adjust the roller 9 Rotate the joints of the robotic arm to an appropriate angle. When working, the electrode 12 is fed from the electrode guide plate 11. For the first feeding, the electrode conveying motor 28 needs to be manually controlled to drive the electrode 12 to a suitable position. When the distance between the electrode 12 and the protrusion on the surface of the roller 6 to be processed reaches the discharge gap , the welding rod 12 and the surface of the roller 6 to be processed discharge and generate an electric arc, rapidly heat up to a molten state, and at the same time, a certain wind force is produced by an outside air pump, and the air flow passes through the airflow delivery gun 25 and after the airflow conduit 33, from the welding rod 12 and the welding head 27 Ejection in the gap acts on the surface of the roll 6 to be processed, and the strong air flow forms an air blowing knife to blow off the welding rod 12 in molten state and the material on the surface of the roll 6 to be processed. During this period, the Hall sensor detects the discharge current, and the PLC controller controls the electrode conveying motor 28 to drive the electrode conveying roller 10 to rotate, thereby continuing to convey the electrode 12 and maintaining the discharge gap. Driven by the electromagnetic speed-regulating motor 2 on the base 1, the drive roller 32 is driven to rotate, and the drive roller 32 cooperates with the groove on the drive shaft 3 to drive the drive shaft 3 to rotate, and the roller 6 to be processed rotates thereupon. When the concave area on the surface of the roller 6 to be processed rotates to the range of welding and blowing, due to the increase in the distance between the bottom of the electrode 12 and the surface of the roller 6 to be processed, normal discharge cannot be performed. The Hall sensor detects that the discharge current is zero, and the PLC controller Control welding rod conveying motor 28 and stop work. Therefore, the raised area on the surface of the roller 6 to be processed will be welded and blown, and the welding and blown work in the depressed area will be stopped, so as to complete the radial welding and blown operation on the surface of the roller 6 to be processed.

When the driving lever rotates with the roller for one revolution, the top of the driving lever touches the travel switch, the controller controls the horizontal adjustment stepper motor 15 to drive the transmission gear 17 to rotate, and the transmission gear 17 meshes with the rack guide rail 18 on the welding frame 23, thereby driving The welding head 27 of the mechanical arm and its front end and the electrode plate 26 move a certain distance in the horizontal direction to complete the welding and blowing operation in the horizontal direction, and then repeat the above-mentioned operation process until the surface of the roller 6 to be processed is welded and blown flat. During the entire processing process, the feed speed in the horizontal direction is controlled by PLC to match the conveying speed of the electrode 12. The faster the horizontal feed speed, the faster the conveying speed of the electrode 12 needs to be controlled, and vice versa.

The described embodiment is only a preferred example of the utility model, and is not a limitation to the implementation of the utility model. For those of ordinary skill in the art, other different forms can also be made on the basis of the description. It is not necessary and impossible to list all the implementation modes here. Any modification, equivalent replacement and improvement made within the spirit and principle of the present utility model shall be included in the claims of the present utility model. within the scope of protection.

Claims (10)

1. a kind of automatic welding blows and cuts lathe, including controlling organization, base (1), the roller being oppositely disposed on the base Drive mechanism and welding Chui Xiao mechanisms, it is characterised in that：

Described roller driving mechanism includes the roll support frame (5) being symmetricly set on base (1), the roll support frame (5) roll support seat (4) is provided with the outside of, two roll support seat (4) center rotatings are provided with power transmission shaft (3), described Power transmission shaft (3) drive roller (33) drive connections of electromagnetic adjustable speed motor (2) is connected with a pair；

Described welding Chui Xiao mechanisms include a planer-type welding stand (23), are arranged on the welding stand (23) crossbeam (21) On two degrees of freedom displacement mechanism, connect the mechanical arm of the two degrees of freedom displacement mechanism, the front end of the mechanical arm is provided with Can penetrate in the plumb joint (27) and battery lead plate (26) of welding rod (12), the plumb joint (27) and be additionally provided with airflow duct (33), The airflow duct (33) conveys rifle (25) and is connected with the air-flow for being connected air pump, and welding rod conveying is additionally provided with the mechanical arm Mechanism；

Described controlling organization includes PLC, Hall sensor, cycle trigger mechanism, described PLC respectively with Hall sensor, travel switch, electromagnetic adjustable speed motor (2), two degrees of freedom displacement mechanism, the connection of welding rod conveying mechanism circuit, institute The Hall sensor stated sets on the robotic arm and is soldered the power transmission line of head (27) and passes through, and described cycle trigger mechanism is used for When power transmission shaft (3) rotates a circle, PLC triggering two degrees of freedom displacement mechanism transverse shifting preset distance.

2. automatic welding according to claim 1 blows and cuts lathe, it is characterised in that：Described two degrees of freedom displacement mechanism bag Horizontal mobile mechanism and vertical movement mechanism are included, described horizontal mobile mechanism includes Level tune stepper motor (15), connection The travelling gear (17) of Level tune stepper motor (15) output shaft, the level being horizontally set on the crossbeam (21) are slided Rail (16) and rack guide rail (18), described travelling gear (17) are meshed with rack guide rail (18), described horizontal slide rail (16) horizontal slide rail roller (20) is additionally provided with；Described vertical movement mechanism includes that vertical slide rail (19) is vertical with described The vertical adjusting stepper motor (14) of slide rail (19) drive connection.

3. automatic welding according to claim 1 blows and cuts lathe, it is characterised in that：Described mechanical arm is from the front to the back successively Including connecting plate (8), rotary joint and pinboard (13), the connecting plate (8) is closed with the angle of pinboard (13) by rotating Section regulation.

4. automatic welding according to claim 3 blows and cuts lathe, it is characterised in that：Described rotary joint includes that rotation is adjusted Section roller (9), rotates the angle that rotation regulation roller (9) adjusts the connecting plate (8) and pinboard (13).

5. automatic welding according to claim 1 blows and cuts lathe, it is characterised in that：Described welding rod conveying mechanism includes edge Welding rod conveying direction is successively set on welding rod guide plate (11), welding rod transport roller group, welding rod orienting roll on the mechanical arm Wheel (7).

6. automatic welding according to claim 5 blows and cuts lathe, it is characterised in that：Described welding rod transport roller group includes Welding rod conveying roller (10), compact heap (31), set lever (30), welding rod convey motor (28), described welding rod conveying roller (10) with welding rod convey motor (28) drive connection, the compact heap (31) by rod hinge connection on the robotic arm and with the weldering Bar conveying roller (10) is oppositely arranged, and the set lever (30) is oppositely arranged with the compact heap (31), for adjusting and locks The pretightning force of the fixed compact heap (31).

7. automatic welding according to claim 1 blows and cuts lathe, it is characterised in that：Described cycle trigger mechanism includes row Cheng Kaiguan and driving lever, described travel switch are located on roll support frame (5), and described driving lever is located on power transmission shaft (3), works as biography When moving axis (3) rotates a circle, driving lever triggers travel switch, then PLC triggering two degrees of freedom displacement mechanism transverse shifting Preset distance.

8. automatic welding according to claim 1 blows and cuts lathe, it is characterised in that：The plumb joint (27) and airflow duct (33) through battery lead plate (26), and airflow duct (33) is in plumb joint (27) inner side, the endoporus and welding rod of airflow duct (33) (12) 5-8mm gaps are kept between.

9. a kind of automatic welding according to claim 3 blows and cuts lathe, it is characterised in that：Plumb joint (27) and pinboard (13) angle between is 110 ° -140 °.

10. a kind of automatic welding according to claim 1 blows and cuts lathe, it is characterised in that：Described welding stand (23) It is fixed on base (1) by framework connecting plate (24).