A welding device for production and processing of high temperature sensors

Abstract

The present invention relates to the technical field of high temperature sensor welding, and provides a welding device for the production and processing of high temperature sensors, including a welding table with a guide support on the top and two slides slidably arranged on the guide support, a welding box is commonly arranged between the tops of the two slides, and a docking groove and a clamping hole are opened on the top of the welding box; it also includes a cylinder I installed in the welding table, and a sliding device that penetrates the welding table, etc.; a laser welding module is installed on the return frame through a support arm. The welding operation of the present invention is completed in a relatively closed welding box, ensuring that the high temperature metal splashed during the welding process will not fall directly on the welding table, and the welding box is detachable, which is easy to clean and replace; a hollow tube and a convex ring are arranged inside the welding box, which can protect the tubular part and the joint part of the temperature sleeve respectively, leaving only the welding part exposed to the outside, effectively isolating the influence of metal splashing on the temperature sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of high temperature sensor welding, and in particular to a welding device used for production and processing of high temperature sensors. Background Art

[0002] High temperature sensor is a device specially designed to measure temperature changes in high temperature environment. This kind of sensor can provide reliable temperature data under extreme high temperature conditions. It is an indispensable part of industrial production and scientific research and is widely used in various fields, such as steel smelting, glass manufacturing, ceramic sintering, petrochemical industry, aerospace, scientific research experiments, etc.

[0003] However, during the production and processing of high-temperature sensors, temperature sleeves are usually produced in conjunction with the high-temperature sensors, and the high-temperature sensors are placed in the temperature sleeves. The temperature sleeves provide mechanical protection for the high-temperature sensors, and when the high-temperature sensors are working, the temperature sleeves can also isolate the medium to prevent the sensor from direct contact with high temperature, high pressure or corrosive media, thereby extending the service life of the sensor. The temperature sleeve includes a tubular part and a joint part. When producing the temperature sleeve, the tubular part and the joint part need to be welded to ensure the airtightness of the temperature sleeve.

[0004] When existing laser welding equipment is welding the temperature sleeve, a lot of metal spatter will be generated due to the rapid melting of metal materials by high-energy laser. The high-temperature metal particles splashing around during the laser welding process will not only damage the welding platform and peripheral equipment, increase maintenance costs, but also pose a serious safety hazard to operators, such as skin burns or other injuries, thus affecting subsequent welding operations and the smooth progress of the overall production process. In addition, the high-temperature metal spatter will also cause physical damage to the temperature sleeve, such as scratches, pits or bumps, which will change the heat transfer path and efficiency between the temperature sleeve and the measured medium, resulting in a decrease in the quality and temperature measurement performance of the final product. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a welding device for high-temperature sensor production and processing, which can isolate splashing high-temperature metal.

[0006] The technical solution is: a welding device for the production and processing of high-temperature sensors, including a welding table with a guide support on the top and two slides slidably arranged on the guide support, a welding box is commonly arranged between the tops of the two slides, and a docking groove and a clamping hole are opened on the top of the welding box; it also includes a cylinder I installed in the welding table, and a return frame that slides through the welding table and is connected to the movable end of the cylinder I at the bottom, a laser welding module is installed on the return frame through a support arm, and a clamping plate adapted to the clamping hole is arranged on the welding head of the laser welding module; a docking end is arranged on the clamping plate, and when the clamping plate covers the clamping hole, its docking end is inserted into the docking groove on the top of the welding box; it also includes a hollow tube detachably arranged on the inner side wall of the welding box, a convex ring arranged on the inner side wall opposite to the hollow tube, and a gasket arranged on the outer side wall of the welding box, and the hollow tube, the convex ring and the gasket are located on the same horizontal straight line; it also includes a clamping structure that can clamp the welding workpiece and control its rotation.

[0007] In a preferred embodiment of the present invention, the clamping structure includes: a bracket connected to the side wall of the welding platform; an electric slide rail installed on the top of the bracket and having a slide; a servo motor installed on the slide and having an output shaft rotating through the slide; a three-jaw chuck fixedly arranged at the end of the output shaft of the servo motor and having a convex shaft in the middle of the chuck body.

[0008] In a preferred embodiment of the present invention, a limiting column is provided at one end of the guide support close to the bracket, and the slide is in sliding contact with the limiting column and is blocked by the limiting column.

[0009] In a preferred embodiment of the present invention, it also includes an air pump installed on the welding table, and a suction frame installed on the welding box and connected to the air pump through a pipeline, and an annular support frame is provided on the welding table to support the suction frame.

[0010] In a preferred embodiment of the present invention, it also includes a transmission module vertically installed on the bracket for conveying the welding workpiece, and a storage arc frame arranged on the bracket and docked with the output end of the transmission module.

[0011] In a preferred embodiment of the present invention, it also includes a cylinder II installed on the bracket, and the movable end is fixedly connected to the bottom of the storage arc frame, and a contact wheel is also installed on the storage arc frame.

[0012] In a preferred embodiment of the present invention, it also includes a guide frame arranged on the side wall of the welding platform and having a slide seat slidably arranged inside, and a material guide frame fixedly connected to the slide seat, and an elastic member is arranged between the slide seat and the guide frame.

[0013] In a preferred embodiment of the present invention, the material guide frame is arranged at an angle, and when the storage arc frame rises, the contact wheel installed thereon contacts the bottom of the material guide frame and pushes the material guide frame away.

[0014] Compared with the prior art, the present invention has the following advantages: the welding operation of the present invention is completed in a relatively closed welding box, ensuring that the high-temperature metal splashed during the welding process will not fall directly on the welding table, and the welding box is detachable, which is convenient for cleaning and replacement; a hollow tube and a convex ring are arranged inside the welding box, which can respectively protect the tubular part and the joint part of the temperature sleeve, leaving only the welding part exposed to the outside, effectively isolating the influence of metal splash on the temperature sleeve; when the welding head of the laser welding module is extended into the welding box, the clamping plate will be accurately docked with the clamping hole and the docking groove, and cooperate with the limiting column to limit the welding box, ensuring the welding process The welding box remains stable during the process, which improves the overall stability of the device; by setting limit columns, vacuum pumps and suction frames, the harmful gases and particles generated during the welding process are effectively prevented from harming the operators, and the safety of the operation is significantly improved; the clamping structure adopts electric slide rails and servo motor control, combined with the transmission module and the arc frame feeding, which can accurately clamp and rotate the welding workpiece, which not only improves the accuracy and efficiency of the welding operation, but also makes the entire welding process smoother; after welding is completed, the temperature sleeve can be automatically transported outward through the inclined guide frame, further improving the automation level of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the matching relationship between the welding box and the guide support of the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of the welding box of the present invention.

[0018] Figure 4 It is a schematic diagram of the lifting structure of the present invention.

[0019] Figure 5 It is a schematic diagram of the clamping structure of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the vacuum pump and the suction frame of the present invention.

[0021] Figure 7 It is a schematic structural diagram of the vacuum pump, suction frame and annular support frame of the present invention.

[0022] Figure 8 It is a schematic diagram of the feeding structure of the present invention.

[0023] Fig. 9 It is a schematic diagram of the material guiding structure of the present invention.

[0024] Fig.10 It is a schematic diagram of the structure of the guide frame and the slide seat of the present invention.

[0025] Among them, the above-mentioned drawings include the following drawing marks: 1. welding table, 11. guide support, 12. limit column, 2. welding box, 201. docking groove, 202. clamping hole, 21. slide, 3. cylinder I, 31. return frame, 32. support arm, 33. laser welding module, 34. clamping plate, 341. docking end, 4. hollow tube, 41. gasket, 42. convex ring, 5. bracket, 51. electric slide rail, 52. slide, 53. servo motor, 54. three-jaw chuck, 541. convex shaft, 6. vacuum pump, 61. suction frame, 62. ring support frame, 7. transmission module, 71. storage arc frame, 8. cylinder II, 81. contact wheel, 9. guide frame, 91. slide, 92. material guide frame. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0028] See also Figure 1-Figure 4 The embodiment of the present invention provides a welding device for producing and processing high temperature sensors, including a welding platform 1 with a hollow interior, and a guide support 11 is arranged on the top of the welding platform 1. Figure 2 Two slides 21 are slidably arranged on the guide support 11, and a welding box 2 is fixed on the top of the two slides 21 by bolts. When the slides 21 slide along the guide support 11, the welding box 2 will be driven to move accordingly, and the welding box 2 can be removed by unscrewing the bolts. The welding process of the temperature sleeve is completed in the welding box 2. Since the welding box 2 is relatively closed, it can block the sputtering high-temperature metal, and a transparent glass window is arranged on the front side wall of the welding box 2, through which the internal welding situation can be observed. Figure 2A limit post 12 is provided at the right end of the guide support 11. When the slide 21 slides to the right and contacts the limit post 12, the limit post 12 will prevent it from continuing to move to the right, thereby achieving the positioning of the welding box 2. A docking groove 201 and a clamping hole 202 are also provided on the top of the welding box 2. Figure 4 A return frame 31 is slidably provided on the welding platform 1, and two cylinders Ⅰ3 are symmetrically installed inside the welding platform 1. The movable ends of the two cylinders Ⅰ3 are connected to the return frame 31. When the movable ends of the cylinders Ⅰ3 are extended, the return frame 31 will be lifted upward, and a support arm 32 is fixedly provided on the top of the return frame 31. A laser welding module 33 is installed at the end of the support arm 32. A clamping plate 34 is mounted on the welding head of the laser welding module 33. Figure 1 and Figure 3 The size of the card plate 34 matches the card hole 202 on the top of the welding box 2, and a docking end 341 is provided on the card plate 34. When the slide 21 moves to contact the limiting column 12, the cylinder Ⅰ3 can be started to shrink its movable end, and the laser welding module 33 is lowered until the card plate 34 covers the card hole 202 on the top of the welding box 2. At this time, the docking end 341 will be inserted into the docking groove 201, and the welding head of the laser welding module 33 will also enter the welding box 2. In addition, under the joint action of the card plate 34 and the limiting column 12, the limiting process of the welding box 2 is completed, so that it cannot move at will, thereby ensuring the overall stability of the device.

[0029] See also Figure 3 In the embodiment of the present invention, a hollow tube 4 is detachably mounted on the left inner wall of the welding box 2, a convex ring 42 is arranged on the right inner wall of the welding box 2, and a gasket 41 is also arranged on the right outer wall of the welding box 2. The hollow tube 4, the convex ring 42 and the gasket 41 are located on the same horizontal straight line. When the temperature sleeve is inserted into the welding box 2, its tubular part will extend into the hollow tube 4, and its joint part will be located in the convex ring 42, so that only the connection between the two parts of the temperature sleeve is exposed to the outside, and it is directly facing the welding head of the laser welding module 33. Therefore, most of the splashed high-temperature metal generated during the welding process can be isolated. And because the hollow tube 4 is detachably arranged, when facing temperature sleeves of different sizes, the original hollow tube 4 can be removed and replaced, thereby improving the applicability of the device.

[0030] See also Figure 1 and Figure 5 In the embodiment of the present invention, a clamping structure for clamping the temperature sleeve and controlling its rotation is also included. The clamping structure is composed of a bracket 5, an electric slide rail 51 with a slide table 52, a servo motor 53, and a three-jaw chuck 54 with a convex shaft 541. The bracket 5 is installed on the right side of the welding table 1, and the height of the bracket 5 is lower than the welding table 1. The top of the bracket 5 is installed with an electric slide rail 51, and a slide table 52 is slidably arranged on the electric slide rail 51. Figure 5A servo motor 53 is mounted on the upper right wall of the slide 52 by a bracket. The output shaft of the servo motor 53 passes through the slide 52 to the left and can rotate inside the slide 52. The output shaft of the servo motor 53 is located on the same horizontal line as the hollow tube 4, the convex ring 42 and the washer 41. Figure 5 A three-jaw chuck 54 is installed at the left end of the output shaft of the servo motor 53. The three-jaw chuck 54 is used to clamp the joint part of the temperature sleeve, and a convex shaft 541 is set at the center position of the left side wall of the three-jaw chuck 54. When the three-jaw chuck 54 clamps the joint part of the temperature sleeve, the convex shaft 541 can abut the temperature sleeve, so that after the temperature sleeve is inserted into the welding box 2, it is limited to ensure that it will not be displaced in the horizontal direction, and with the gasket 41, its joint part can also be protected. Subsequently, the servo motor 53 is started to drive the three-jaw chuck 54 and the temperature sleeve clamped by the three-jaw chuck 54 to rotate, thereby completing the welding process.

[0031] See also Figure 1 , Figure 8 , Fig. 9 and Fig.10 In the embodiment of the present invention, a transmission module 7 for transporting the temperature sleeve is also installed on the bracket 5, and the output direction of the transmission module 7 is perpendicular to the electric slide rail 51. Figure 8 The bracket 5 is also provided with a storage arc frame 71, which is connected to the rear end of the transmission module 7, and the temperature sleeve on the transmission module 7 will eventually fall into the storage arc frame 71. Fig. 9 Two cylinders II 8 are also installed on the bracket 5. The movable ends of the two cylinders II 8 are fixedly connected to the bottom of the storage arc frame 71. When the movable ends of the cylinders II 8 are extended, the storage arc frame 71 can be lifted upward. Fig. 9 and Fig.10 A guide frame 9 is provided on the upper part of the right side wall of the welding platform 1, a slide seat 91 is slidably provided in the guide frame 9, and a spring is provided between the slide seat 91 and the guide frame 9, and a material guide frame 92 tilted backward is fixedly installed on the slide seat 91. Fig. 9 A contact wheel 81 is installed on the top of the storage arc frame 71. When the cylinder II 8 pushes the storage arc frame 71 to rise, the contact wheel 81 will contact the bottom of the material guide frame 92 and push the material guide frame 92 backward along the inclined surface, so that the storage arc frame 71 and its internal temperature sleeve can rise to the same height as the three-jaw chuck 54, and the temperature sleeve inside the storage arc frame 71 can be clamped by the three-jaw chuck 54.

[0032] See also Figure 1From the perspective of the embodiment of the present invention, first, according to the size and specification of the temperature sleeve to be processed, the corresponding hollow tube 4 is installed in the welding box 2, and then the slide 21 and the welding box 2 are pushed to the right until the slide 21 contacts the limiting column 12, and then the cylinder I3 is started to lower the return frame 31, the support arm 32 and the laser welding module 33 as a whole until the welding head of the laser welding module 33 extends into the welding box 2, the card plate 34 covers the card hole 202, and the docking end 341 of the card plate 34 is inserted into the docking groove 201. At this time, the card plate 34 cooperates with the limiting column 12 to complete the limiting fixation of the welding box 2;

[0033] After that, the electric slide rail 51 is started, so that the slide table 52, the servo motor 53 and the three-jaw chuck 54 slide rightward as a whole, and then the temperature sleeve is sent from front to back into the storage arc frame 71 through the transmission module 7, and then the cylinder II 8 is started to lift the storage arc frame 71 upward. When the contact wheel 81 on the storage arc frame 71 is connected with the bottom of the guide frame 92, due to the inclined setting of the guide frame 92, when the storage arc frame 71 continues to rise, the guide frame 92 will be pushed backward and will not block the storage arc frame 71.

[0034] When the placement arc frame 71 rises to the same height as the three-jaw chuck 54, the electric slide rail 51 is started, so that the three-jaw chuck 54 approaches the placement arc frame 71 and clamps the temperature sleeve inside it. Then, the placement arc frame 71 is lowered back to its original position by the cylinder II 8, and the slide table 52, the servo motor 53 and the three-jaw chuck 54 are controlled by the electric slide rail 51 to slide to the left as a whole until the temperature sleeve is inserted into the welding box 2. In this process, the placement arc frame 71 is lowered back to its original position, and the contact wheel 81 is no longer in contact with the material guide frame 92. The material guide frame 92 will be reset under the action of the spring between the slide seat 91 and the guide frame 9.

[0035] When the temperature sleeve is inserted into the welding box 2, its tubular part will be inserted into the hollow tube 4, and the joint part will be blocked by the convex ring 42. Subsequently, the laser welding module 33 is started to weld the connection between the tubular part and the joint part, and the servo motor 53 is started to drive the three-jaw chuck 54 to rotate, thereby driving the temperature sleeve to rotate, so as to complete the welding process. After that, the three-jaw chuck 54 is moved to the top of the material guide frame 92 by the electric slide rail 51, and then the three-jaw chuck 54 is released. After the welding is completed, the temperature sleeve will fall into the material guide frame 92 and slide out backward along the inclined material guide frame 92.

[0036] See also Figure 6 and Figure 7In the embodiment of the present invention, an air pump 6 is installed on the front side wall of the welding station 1 through a bracket, and a trumpet-shaped suction frame 61 is connected to the front side wall of the welding box 2, and the suction frame 61 is connected to the air pump 6 through a pipeline. When the air pump 6 is started, the pipeline and the suction frame 61 are coordinated to absorb the harmful gas and particulate matter generated in the welding box 2, and an annular support frame 62 is also provided on the welding station 1. The annular support frame 62 can support the suction frame 61, further improving the overall stability of the device, and referring to Figure 7 The vacuum pump 6 is also provided with an interface, and the pipeline is connected to the interface to collect the sucked harmful gases and particulate matter, which is convenient for subsequent centralized treatment.

[0037] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

[0038] The above are only optional embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding device for producing and processing high-temperature sensors, comprising a welding platform (1) with a guide support (11) arranged on the top, and two slides (21) slidably arranged on the guide support (11), wherein a welding box (2) is arranged between the tops of the two slides (21); Its characteristics are: The top of the welding box (2) is provided with a docking groove (201) and a clamping hole (202); It also includes a cylinder I (3) installed in the welding platform (1), and a return frame (31) which slides through the welding platform (1) and has a bottom end connected to the movable end of the cylinder I (3), a laser welding module (33) being installed on the return frame (31) via a support arm (32), and a clamping plate (34) adapted to the clamping hole (202) being provided on the welding head of the laser welding module (33); The clamping plate (34) is provided with a docking end (341), and when the clamping plate (34) covers the clamping hole (202), the docking end (341) is inserted into the docking groove (201) at the top of the welding box (2); it also includes a hollow tube (4) detachably arranged on the inner wall of the welding box (2), a convex ring (42) arranged on the inner wall opposite to the hollow tube (4), and a gasket (41) arranged on the outer wall of the welding box (2), wherein the hollow tube (4), the convex ring (42) and the gasket (41) are located on the same horizontal straight line; Also included is a clamping structure capable of clamping and grasping the welding workpiece and controlling its rotation; The clamping structure comprises: a bracket (5) connected to the side wall of the welding platform (1); an electric slide rail (51) mounted on the top of the bracket (5) and provided with a slide table (52); a servo motor (53) mounted on the slide table (52) and having an output shaft that rotates and passes through the slide table (52); a three-jaw chuck (54) fixedly arranged at the end of the output shaft of the servo motor (53) and having a convex shaft (541) in the middle of the chuck body; A limiting column (12) is provided at one end of the guide support (11) close to the bracket (5), and the slide (21) is in sliding contact with the limiting column (12) and is blocked by the limiting column (12).

2. A welding device for high temperature sensor production and processing according to claim 1, characterized in that: It also includes an air extraction pump (6) installed on the welding platform (1), and a suction frame (61) installed on the welding box (2) and connected to the air extraction pump (6) through a pipeline. The welding platform (1) is provided with an annular support frame (62) for supporting the suction frame (61).

3. A welding device for high temperature sensor production and processing according to claim 2, characterized in that: It also includes a transmission module (7) vertically mounted on the bracket (5) for conveying the welding workpiece, and a storage arc frame (71) arranged on the bracket (5) and docked with the output end of the transmission module (7).

4. A welding device for producing and processing high temperature sensors according to claim 3, characterized in that: It also includes a cylinder II (8) mounted on the bracket (5) and having a movable end fixedly connected to the bottom of the storage arc frame (71). A contact wheel (81) is also mounted on the storage arc frame (71).

5. A welding device for producing and processing high temperature sensors according to claim 4, characterized in that: It also includes a guide frame (9) arranged on the side wall of the welding platform (1) and having a slide seat (91) slidably arranged inside, and a material guide frame (92) fixedly connected to the slide seat (91), and an elastic member is arranged between the slide seat (91) and the guide frame (9).

6. A welding device for producing and processing high temperature sensors according to claim 5, characterized in that: The material guide frame (92) is arranged to be inclined, and when the object placement arc frame (71) rises, the contact wheel (81) mounted thereon contacts the bottom of the material guide frame (92) and pushes the material guide frame (92) away.

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