Automatic high-frequency atmosphere protection welding machine for diamond

Abstract

The invention discloses an automatic high-frequency atmosphere protection welding machine for diamond, and relates to the technical field of welding, the automatic high-frequency atmosphere protection welding machine comprises a base, a protection mechanism, a driving mechanism, a workbench, a loading mechanism and a pressing mechanism, the top end of the base is fixedly provided with a high-frequency induction generation host, the outer wall of the high-frequency induction generation host is fixedly provided with a U-shaped coil, and the protection mechanism is arranged on the base; the driving mechanism is arranged in the protection mechanism, the loading mechanism is arranged on the workbench, and the pressing mechanism is arranged on the workbench. By means of the arrangement mode that the U-shaped coil, the protection mechanism, the driving mechanism, the workbench, the charging mechanism and the pressing mechanism are matched, automation of the welding process of the diamond machine-clamped blade can be achieved, blade positioning can be adjusted, the forming quality of the blade and a blade body can be controlled, downward pressure and tiny vibration force can be applied to the blade, and welding quality is improved. And therefore, the welding quality of the blade is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to an automatic high-frequency atmosphere protection welding machine for diamond. Background Art

[0002] To meet the needs of precision and ultra-precision machining, diamond cutting tools have been widely used in fields such as the automotive industry, aerospace industry, and wood processing industry due to their excellent performance. Among them, polycrystalline diamond indexable inserts are one of the most widely used types of diamond cutting tools, and the brazing of polycrystalline diamond indexable inserts is a key link in the tool manufacturing process.

[0003] Among various welding methods for diamond indexable inserts, high-frequency induction technology has been widely used in production due to its advantages of low investment, low cost, and simple operation. High-frequency welding in the prior art is mostly carried out manually. First, the cutting insert is adhered to the tool body with solder paste, and then the cutting insert part is manually inserted into the high-frequency coil for welding. The manual method has low production efficiency, and the insertion position and welding time need to be determined by the operator's experience, which cannot be stable, resulting in unstable welding quality and increased production costs, and it is rather inconvenient. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic high-frequency atmosphere protection welding machine for diamond to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An automatic high-frequency atmosphere protection welding machine for diamond, comprising:

[0006] A base, on the top of which a high-frequency induction generating host is fixedly installed, and a U-shaped coil is fixedly installed on the outer wall of the high-frequency induction generating host;

[0007] A protection mechanism, which is arranged on the base;

[0008] A driving mechanism, which is arranged inside the protection mechanism;

[0009] A workbench, which is displaced inside the protection mechanism through the driving mechanism;

[0010] A loading mechanism, which is arranged on the workbench and is used for positioning the material and conveying it to the U-shaped coil for welding operation under the drive of the driving mechanism;

[0011] A pressing mechanism, which is arranged on the workbench and is used for restricting the position of the cutting insert to be welded.

[0012] Preferably, a nitrogen nozzle is fixedly installed on the outer wall of the high-frequency induction generating host for injecting nitrogen into the interior of the U-shaped coil at a fixed point, and an infrared thermometer is arranged on the protection mechanism for detecting the temperature during the welding of the U-shaped coil.

[0013] Preferably, the protection mechanism includes:

[0014] An observation plate, which is fixedly connected to the top of the base, and the observation plate is made of a transparent material;

[0015] An L-shaped plate, which is fixedly connected to the top of the base, the L-shaped plate is fixedly connected to the observation plate, an annular groove is opened at the top end of the inner wall of the L-shaped plate, and a feeding groove is equidistantly opened on one side of the inner wall of the annular groove, and the infrared thermometer is fixedly installed at the top end of the inner wall of the L-shaped plate.

[0016] Preferably, the driving mechanism includes:

[0017] An electric push rod, which is fixedly installed on the outer wall of the high-frequency induction generating host;

[0018] A slide rail, a moving groove is opened at the top of the base, and the slide rail is equidistantly fixedly installed at the bottom end of the inner wall of the moving groove;

[0019] A sliding seat, which is slidably arranged on the slide rail;

[0020] A moving box, which is fixedly installed on the top of the sliding seat, and the workbench is fixedly connected to the top of the moving box.

[0021] Preferably, the driving mechanism further includes:

[0022] A motor, which is fixedly installed inside the moving box;

[0023] A rotating table, which is rotatably arranged on the moving box through a rotating shaft;

[0024] A gear, the output end of the motor is in transmission connection with the gear;

[0025] A toothed ring, which is fixedly installed on the outside of the rotating shaft, and the gear is meshed with the toothed ring.

[0026] Preferably, the loading mechanism includes:

[0027] A slide bar, sliding grooves are equidistantly opened at the top of the rotating table, and the end of the slide bar is fixedly connected to the inner wall of the sliding groove;

[0028] A slider, the slider is slidably inserted through the slide bar, a guiding groove is opened at the top of the workbench, and the slider is slidably inserted through the inner cavity of the guiding groove;

[0029] The loading plate is fixedly connected to the top of the slider. Scales are equidistantly arranged on the top of the loading plate, and a placement groove for placing the tool body is formed on the top of the loading plate.

[0030] The first compression spring is sleeved outside the sliding rod.

[0031] The first limiting component is arranged inside the loading plate and is used for limiting tool bodies of different lengths.

[0032] The second limiting component is arranged on the loading plate and is used for limiting the blade.

[0033] Preferably, the first limiting component includes:

[0034] The driving rod. A driving groove is formed at the bottom end of the inner wall of the placement groove, and the end of the driving rod is rotatably inserted and connected to the inner wall of the driving groove.

[0035] The sliding block is located inside the driving groove, and the sliding block and the driving rod form a lead screw drive.

[0036] The first limiting plate is located inside the placement groove. The cross-section of the first limiting plate is L-shaped, and the first limiting plate is fixedly connected to the top of the sliding block.

[0037] The knob is fixedly connected to one end of the driving rod and is used for adjusting the position of the first limiting plate.

[0038] Preferably, the second limiting component includes:

[0039] The extrusion plate. Telescopic grooves are equidistantly formed on the loading plate, and the extrusion plate is located inside the telescopic grooves.

[0040] The extrusion rod. One end of the extrusion rod is fixedly connected to the extrusion plate, and the other end of the extrusion rod is slidably inserted and connected to the loading plate.

[0041] The second limiting plate is fixedly connected to the other end of the extrusion rod. A V-shaped groove for horizontally limiting the blade is formed on the side of the second limiting plate close to the loading plate, and an arc surface is formed on the side of the second limiting plate away from the loading plate for fitting the inner wall of the L-shaped plate.

[0042] The second compression spring is sleeved outside the extrusion rod. One end of the second compression spring is fixedly connected to the extrusion plate, and the other end of the second compression spring is fixedly connected to the inner wall of the telescopic groove.

[0043] Preferably, the pressing mechanism includes:

[0044] Fixed table, the fixed table is fixedly connected to the top of the rotating table;

[0045] Extrusion block, extrusion grooves are equidistantly opened inside the fixed table, and the extrusion block is located inside the extrusion groove;

[0046] Fixed rod, the fixed rod is fixedly inserted through the extrusion block, the top of the fixed rod passes through the extrusion groove and is slidably inserted through the inner cavity of the annular groove, the top of the fixed rod cooperates with the inner cavity of the feeding groove, and a ball is embedded at the top of the fixed rod for fitting the annular groove and the feeding groove;

[0047] Pressing plate, the pressing plate is fixedly connected to the bottom end of the fixed rod for vertically limiting the blade;

[0048] Third compression spring, the third compression spring is sleeved outside the fixed rod, one end of the third compression spring is fixedly connected to the extrusion block, and the other end of the third compression spring is fixedly connected to the bottom end of the inner wall of the extrusion groove.

[0049] Preferably, the pressing mechanism further includes:

[0050] Micro vibration motor, a groove is opened at the top of the pressing plate, and the micro vibration motor is fixedly installed inside the groove for applying vibration to the pressing plate;

[0051] Cleaning plate, the cleaning plates are equidistantly fixedly connected to the outer wall of the fixed table for cleaning the infrared thermometer.

[0052] The technical effects and advantages of the present invention:

[0053] (1) By using the cooperation of the U-shaped coil, the protection mechanism, the driving mechanism, the workbench, the loading mechanism and the pressing mechanism, the present invention can realize the automation of the welding process of diamond indexable inserts. It has multiple workstations and can respectively perform loading, shaping, forming and cooling operations, improving production efficiency. And through the pressing mechanism, the blade positioning can be adjusted, the forming quality of the blade and the tool body can be controlled, and a downward pressure and a fine vibration force can be applied to reduce or remove the bubbles in the melt, further improving the welding quality of the blade and being convenient for use;

[0054] (2) The present invention utilizes a setting method in which a first limiting component, a second limiting component and a pressing mechanism cooperate with each other. The first limiting component can adjust the size of the inner cavity of the placement groove through the scale on the top of the loading plate, so that the blades of different lengths can be limited. In combination with a second limiting plate with a V-shaped groove, the blade and the blade body can be limited in the horizontal direction. The elastic force of the second compression spring is used to enable the second limiting plate to squeeze the blade, so as to control the welding width of the vertical contact surface between the blade and the blade body. The opening of the arc surface can be squeezed by the inner wall of the L-shaped plate during rotation to further ensure that the welding width of the vertical contact surface between the blade and the blade body can be kept consistent. In the process of rotation, the pressing mechanism can be used to apply a downward force to the blade and the blade body, so as to control the welding thickness of the horizontal contact surface between the blade and the blade body. Through this multi-faceted coordination and control, the precise adjustment and stable control of the welding process of the blade and the blade body can be achieved, which provides a reliable guarantee for high-quality welding operations and greatly improves production efficiency and welding quality.

[0055] (3) The present invention utilizes a micro-vibration motor, a nitrogen nozzle and an infrared thermometer in a coordinated configuration. The micro-vibration motor can provide a slight vibration force during the process of the pressing plate pressing and welding the blade and the knife body, thereby reducing or removing bubbles in the molten body. At the same time, the nitrogen nozzle can spray nitrogen as a protective gas during the welding process, thereby effectively preventing the welding area from being oxidized and ensuring the quality and stability of the welding. The infrared thermometer can monitor the temperature changes of the welding area in real time. Through precise temperature detection, the micro-vibration motor and the nitrogen nozzle can be adjusted accordingly according to the temperature conditions, thereby improving the quality and efficiency of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0057] Figure 2 It is a schematic diagram of the overall internal structure of the present invention.

[0058] Figure 3 It is a schematic diagram of the internal structure of the moving box at the side of the present invention.

[0059] Figure 4 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0060] Figure 5 It is a schematic diagram of the internal structure of the side of the charging plate of the present invention.

[0061] Figure 6 It is a schematic diagram of the internal structure of the side of the L-shaped plate of the present invention.

[0062] Figure 7This is a schematic diagram of the upward view structure of the L-shaped plate of the present invention.

[0063] Figure 8 This is a schematic diagram of the internal structure of the loading plate of the present invention from the top view.

[0064] Figure 9 This is a schematic diagram of the top view structure at the workbench of the present invention.

[0065] In the figure: 1. Base; 2. High-frequency induction generating host; 3. U-shaped coil; 4. Protection mechanism; 41. Observation plate; 42. L-shaped plate; 43. Annular groove; 44. Feeding groove; 5. Driving mechanism; 51. Electric push rod; 52. Slide rail; 53. Slide seat; 54. Moving box; 55. Motor; 56. Rotating table; 57. Gear; 58. Tooth ring; 6. Workbench; 7. Loading mechanism; 71. Slide bar; 72. Slide block; 73. Loading plate; 74. First compression spring; 75. First limiting component; 751. Driving rod; 752. Sliding block; 753. First limiting plate; 754. Knob; 76. Second limiting component; 761. Extrusion plate; 762. Extrusion rod; 763. Second limiting plate; 764. Second compression spring; 77. Guide groove; 8. Pressing mechanism; 81. Fixed table; 82. Extrusion block; 83. Fixed rod; 84. Pressing plate; 85. Third compression spring; 86. Micro vibration motor; 87. Ball; 88. Cleaning plate; 9. Nitrogen nozzle; 10. Infrared thermometer. Detailed implementation manners

[0066] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0067] The present invention provides as Figures 1-9The diamond automatic high-frequency atmosphere protection welding machine shown in the figure includes a base 1, a protection mechanism 4, a driving mechanism 5, a workbench 6, a charging mechanism 7 and a pressing mechanism 8. A high-frequency induction host 2 is fixedly installed on the top of the base 1, and a U-shaped coil 3 is fixedly installed on the outer wall of the high-frequency induction host 2. The protection mechanism 4 is arranged on the base 1, and the driving mechanism 5 is arranged inside the protection mechanism 4. The workbench 6 is displaced inside the protection mechanism 4 by the driving mechanism 5. The charging mechanism 7 is arranged on the workbench 6, and is used to position the material and transport it to the U-shaped coil 3 under the drive of the driving mechanism 5 for welding operation. The pressing mechanism 8 is arranged on the workbench 6 and is used to limit the required welding blade position. The driving mechanism 5 can drive the loading mechanism 7 and the pressing mechanism 8 on the workbench 6 to realize the automation of the diamond machine clamp blade welding process. The loading mechanism 7 on the workbench 6 has a plurality of stations, which can respectively carry out loading, shaping, forming and cooling operations to improve production efficiency. The pressing mechanism 8 can adjust the blade positioning, control the forming quality of the blade and the blade body, and apply downward pressure and slight vibration force to it, so as to reduce or remove bubbles in the molten body, so that the welding quality of the blade is further improved and it is easy to use.

[0068] Furthermore, a nitrogen nozzle 9 is fixedly installed on the outer wall of the high-frequency induction generator 2, which is used to spray nitrogen to a fixed point inside the U-shaped coil 3. The nitrogen nozzle 9 is connected to an external nitrogen cylinder through a pipeline, and the nitrogen injection and stop are realized by controlling the switch of the pipeline by an electric valve. A flow controller is also provided on the pipeline to control the injection flow of nitrogen. An infrared thermometer 10 is provided on the protection mechanism 4 to detect the temperature of the U-shaped coil 3 during welding. Nitrogen can be sprayed as a protective gas during welding through the nitrogen nozzle 9, which can effectively prevent the welding area from being oxidized and ensure the quality and stability of welding. The infrared thermometer 10 can monitor the temperature changes in the welding area in real time, and its data can be fed back to the controller in time, so as to adjust the vibration intensity of the micro vibration motor 86 and the injection parameters of the nitrogen nozzle 9 according to the temperature conditions, thereby ensuring the stability and quality of the welding process.

[0069] Specifically, the protection mechanism 4 includes an observation plate 41 and an L-shaped plate 42. The observation plate 41 is fixedly connected to the top of the base 1. The observation plate 41 is made of transparent material. When performing the welding operation between the blade and the blade body, the operator can clearly observe the internal working conditions through the transparent observation plate 41. The L-shaped plate 42 is fixedly connected to the top of the base 1. The L-shaped plate 42 is fixedly connected to the observation plate 41. An annular groove 43 is provided at the top of the inner wall of the L-shaped plate 42. A feed groove 44 is equidistantly provided on one side of the inner wall of the annular groove 43. The infrared thermometer 10 is fixedly installed on the top of the inner wall of the L-shaped plate 42. The entire loading welder can be surrounded by the observation plate 41 and the L-shaped plate 42, which not only ensures the safety of the operator, but also provides good conditions for the precise control of the welding process, which helps to improve the working efficiency and welding quality of the loading welder.

[0070] Specifically, the driving mechanism 5 includes an electric push rod 51, a slide rail 52, a slide seat 53 and a moving box 54. The electric push rod 51 is fixedly installed on the outer wall of the high-frequency induction generating host 2. A moving groove is opened at the top of the base 1. The slide rail 52 is fixedly installed at the bottom end of the inner wall of the moving groove at an equal distance. The slide seat 53 is slidably set on the slide rail 52. The moving box 54 is fixedly installed on the top of the slide seat 53. The workbench 6 is fixedly connected to the top of the moving box 54. The electric push rod 51 can drive the moving box 54 to move horizontally back and forth on the slide rail 52 through the slide seat 53, thereby driving the blade body to be welded on the workbench 6 to extend into the interior of the U-shaped coil 3, so that high-frequency welding operation can be performed. This method controls the extension distance, welding time, and welding temperature, providing a reliable guarantee for high-quality welding.

[0071] Furthermore, the driving mechanism 5 also includes a motor 55, a rotating table 56, a gear 57 and a gear ring 58. The motor 55 is fixedly installed inside the moving box 54. The electric push rod 51 and the motor 55 are electrically connected to the external power supply through the controller. The rotating table 56 is rotatably arranged on the moving box 54 through the rotating shaft. The output end of the motor 55 is transmission-connected with the gear 57. The gear ring 58 is fixedly installed outside the rotating shaft. The gear 57 is meshingly connected with the gear ring 58. The motor 55 can drive the gear 57 to rotate, so that the gear ring 58 drives the rotating table 56 to rotate. Each start will only drive the rotating table 56 to rotate 90° counterclockwise, so that the blade bodies on multiple workstations can be switched in an orderly manner between different workstations, making the working process of the entire loading welding machine more efficient and convenient, without the need for manual workstation conversion, which greatly saves time and labor.

[0072] The electric push rod 51, the motor 55, the nitrogen nozzle 9 and the infrared thermometer 10 are all controlled by the controller.

[0073] Under the control of the controller, the driving motor 55 drives the rotating table 56 on the toothed ring 58 through the gear 57 to rotate counterclockwise by 90°. After the rotation is completed, the motor 55 stops rotating. After reaching the position, the controller automatically cuts off the power supply of the motor 55, and each rotation is counted and displayed on the display screen for displaying the output;

[0074] After rotation and positioning, the electric push rod 51 is started, so that the rotating table 56 drives the blade and the tool body on the loading plate 73 to extend into the internal welding area of the U-shaped coil 3 for welding at a preset duration and a preset temperature, and the micro vibration motor 86 is in a working state during the whole welding process;

[0075] During welding, the infrared thermometer 10 monitors the temperature inside the U-shaped coil 3 in real time, and displays the value on the display screen of the high-frequency induction generating host 2. At the same time, it analyzes according to the real-time monitored temperature. When the temperature monitored by the infrared thermometer 10 exceeds the set value T, the welding is immediately terminated and an alarm is given. When the monitored target value of the infrared thermometer 10 is within the over-temperature range of T, the welding time is shortened. When the temperature monitored by the infrared thermometer 10 is lower than the set value T, the welding time is extended. When the temperature monitored by the infrared thermometer 10 is within the normal temperature range, the preset time is maintained. This process is sampled at a frequency of 10Hz. The value of T and the shortening and extension of the welding time are all determined by the materials of the welded blade and tool body. Exceeding the set value T will cause over-temperature in the welding of the blade and tool body, which is likely to cause defects such as cracks and pores at the welding place, affecting the strength and tightness of the welding. Shortening the welding time within the over-temperature set value T range can avoid adverse changes in the materials of the blade and tool body due to long-term high-temperature welding, ensure the stability of the microstructure at the welding place, improve the quality and durability of the welding. Extending the welding time when it is lower than the set value T can make the heat transfer more fully to the welding part, ensure full fusion at the welding place, and ensure the firmness and reliability of the welding, reducing the risk of failures during use caused by insufficient welding;

[0076] When the blade and the tool body extend into the internal welding area of the U-shaped coil 3, the nitrogen nozzle 9 is controlled to spray nitrogen at a constant flow rate and at a uniform speed on the welding part of the blade and the tool body to protect the safety of the welding process;

[0077] After the welding time ends, the U-shaped coil 3 powers off by itself. At the same time, the electric push rod 51 is controlled to extend to the initial position, and at the same time the micro vibration motor 86 stops working. The above steps are cycled to achieve automated cyclic production.

[0078] Specifically, the loading mechanism 7 includes a slide bar 71, a slider 72, a loading plate 73, a first compression spring 74, a first limiting component 75 and a second limiting component 76. Equally spaced chutes are provided at the top of the rotating table 56. The end of the slide bar 71 is fixedly connected to the inner wall of the chute. The slider 72 is slidably inserted into the slide bar 71. A guiding groove 77 is provided at the top of the workbench 6. The slider 72 is slidably inserted into the inner cavity of the guiding groove 77. The loading plates 73 are fixedly connected to the top of the slider 72 at equal intervals. Scales are provided at equal intervals on the top of the loading plate 73. A placement groove for placing the tool body is provided at the top of the loading plate 73. The number of loading plates 73 is four, corresponding to the functions of loading and unloading, shaping, forming, and cooling respectively. The outermost one can be used for loading and unloading the tool body of the blade. The one on one side of the L-shaped plate 42 can be used for preliminary limiting and shaping. Then, the one close to the U-shaped coil 3 can be welded and formed after shaping. The one close to the observation plate 41 is for a short natural cooling station after welding. The first compression spring 74 is sleeved outside the slide bar 71. The first compression spring 74 is always in a compressed state, so as to provide a stable elastic force for the loading plate 73 through the slider 72. Thus, when the entire rotating table 56 rotates, it can drive the loading plate 73 to rotate, and at the same time, it can also make the slider 72 slide inside the guiding groove 77. The cross-section of the guiding groove 77 is as Figure 9 shown. When it is located on the outermost side, that is, on the side far from the U-shaped coil 3, the loading plate 73 can be extended to facilitate the operator to perform loading and unloading operations. The first limiting component 75 is arranged inside the loading plate 73 and is used to limit tool bodies of different lengths. The second limiting component 76 is arranged on the loading plate 73 and is used to limit the blades. The first limiting component 75 and the second limiting component 76 respectively limit the tool body after solder paste is applied to the tool body in the horizontal and vertical directions. The tool body and the blade can maintain a stable position, avoiding deviation or shaking during the operation process, and improving the quality and uniformity of welding.

[0079] Furthermore, the first limiting component 75 includes a driving rod 751, a sliding block 752, a first limiting plate 753 and a knob 754. A driving groove is formed at the bottom end of the inner wall of the placement groove. The end of the driving rod 751 is rotatably inserted into the inner wall of the driving groove. The sliding block 752 is located inside the driving groove. The sliding block 752 and the driving rod 751 form a lead screw drive. The first limiting plate 753 is located inside the placement groove. The cross-section of the first limiting plate 753 is L-shaped. The first limiting plate 753 is fixedly connected to the top of the sliding block 752. The knob 754 is fixedly connected to one end of the driving rod 751 and is used to adjust the position of the first limiting plate 753. By rotating the knob 754, the driving rod 751 can be driven to rotate, so that the first limiting plate 753 can be driven by the sliding block 752 to displace inside the placement groove. By calculating the length after welding the tool body and the blade, the first limiting plate 753 can be adjusted to a suitable position through the scale on the loading plate 73, and then the tool body and the blade can be placed.

[0080] Furthermore, the second limiting component 76 includes a pressing plate 761, a pressing rod 762, a second limiting plate 763 and a second compression spring 764. Telescopic grooves are equidistantly formed on the loading plate 73. The pressing plate 761 is located inside the telescopic groove. One end of the pressing rod 762 is fixedly connected to the pressing plate 761. The other end of the pressing rod 762 is slidably inserted into the loading plate 73. The second limiting plate 763 is fixedly connected to the other end of the pressing rod 762. A V-shaped groove for horizontally limiting the blade is formed on one side of the second limiting plate 763 close to the loading plate 73. An arc surface is formed on the side of the second limiting plate 763 away from the loading plate 73 for fitting the inner wall of the L-shaped plate 42. The second compression spring 764 is sleeved outside the pressing rod 762. One end of the second compression spring 764 is fixedly connected to the pressing plate 761. The other end of the second compression spring 764 is fixedly connected to the inner wall of the telescopic groove. The second compression spring 764 is always in a compressed state, so that a stable elastic force can be provided to the second limiting plate 763 on the pressing rod 762 through the pressing plate 761, so that the second limiting plate 763 can move away from the loading plate 73 in a stretching manner to realize the loading and unloading operations of the tool body and the blade. After the tool body and the blade are loaded, at this time, the tool body and the blade are bonded by solder paste. The second limiting plate 763 can be used for extrusion. After the second limiting plate 763 is attached to the loading plate 73, in cooperation with the first limiting plate 753, the welding width of the vertical fitting surface between the blade and the tool body can be stably controlled within the range meeting the production requirements. If the solder paste causes the second limiting plate 763 not to fit the loading plate 73, the inner wall of the L-shaped plate 42 can be used to extrude the second limiting plate 763 with an arc surface when the turntable 56 rotates, so that the second limiting plate 763 fits the loading plate 73, thereby further improving the stability and accuracy of welding and avoiding welding deviation caused by poor fitting.

[0081] Specifically, the pressing mechanism 8 includes a fixed platform 81, a pressing block 82, a fixed rod 83, a pressing plate 84, and a third compression spring 85. The fixed platform 81 is fixedly connected to the top of the rotating platform 56. Extrusion grooves are equidistantly formed inside the fixed platform 81. The pressing block 82 is located inside the extrusion grooves. The fixed rod 83 is fixedly inserted through the pressing block 82. The top of the fixed rod 83 passes through the extrusion groove and is slidably inserted into the inner cavity of the annular groove 43. The top of the fixed rod 83 cooperates with the inner cavity of the feeding groove 44. A ball 87 is embedded at the top of the fixed rod 83 for fitting the annular groove 43 and the feeding groove 44. The pressing plate 84 is fixedly connected to the bottom end of the fixed rod 83 for vertically limiting the blade. The third compression spring 85 is sleeved outside the fixed rod 83. One end of the third compression spring 85 is fixedly connected to the pressing block 82, and the other end of the third compression spring 85 is fixedly connected to the bottom end of the inner wall of the extrusion groove. The third compression spring 85 is always in a compressed state, so as to provide a stable upward elastic force to the ball 87 on the fixed rod 83 through the pressing block 82, enabling the ball 87 to slide closely along the inner cavity of the annular groove 43 and adjusting the pressing plate 84 to different heights as the depth of the annular groove 43 changes. It can rise at the loading and cooling positions and can stably press on the blade and the tool body at the shaping and forming positions, facilitating the control of the welding thickness of the horizontal contact surface between the blade and the tool body within the range meeting the production requirements.

[0082] Furthermore, the pressing mechanism 8 further includes a micro vibration motor 86 and a cleaning plate 88. A groove is formed at the top of the pressing plate 84. The micro vibration motor 86 is fixedly installed inside the groove for applying vibration to the pressing plate 84. The cleaning plates 88 are equidistantly and fixedly connected to the outer wall of the fixed platform 81 for cleaning the infrared thermometer 10. The micro vibration motor 86 can provide a subtle vibration force during the process of the pressing plate 84 pressing and welding the blade and the tool body, which can reduce or remove the bubbles in the melt. The cross-section of the cleaning plate 88 is C-shaped, and it can wipe and clean the lens of the infrared thermometer 10 when the electric push rod 51 drives the loading plate 73 to perform a horizontal displacement, ensuring that the infrared thermometer 10 can accurately sense and measure the relevant temperature data of the tool body and the blade, providing a reliable guarantee for the temperature monitoring during the entire loading and welding process, avoiding temperature measurement errors caused by lens contamination, and thus improving the quality and stability of the entire production process.

[0083] Working principle of the present invention: By pulling the second limiting plate 763 to open the placement groove, the knife body and blade coated with solder paste can be placed inside the loading plate 73. At this time, by pressing the switch on the high-frequency induction generating host 2, the driving motor 55 drives the rotating table 56 on the gear ring 58 to rotate 90° counterclockwise. After each rotation, the motor 55 stops rotating, and the power supply is automatically cut off by the motor 55 after reaching the position. After the first rotation, the loaded blade and knife body can be in the shaping position. The inner wall of the L-shaped plate 42 can squeeze the second limiting plate 763 for horizontal limiting, and the depth change of the annular groove 43 also makes the pressing plate 84 vertically press above the knife body and blade for shaping. After the shaping is completed, it can be rotated to the welding station again. After the rotation and positioning are completed, the electric push rod 51 is started, so that the rotating table 56 drives the blade and knife body on the loading plate 73 to extend into the welding area inside the U-shaped coil 3 for welding. During the welding process, the infrared thermometer 10 monitors the temperature inside the U-shaped coil 3 in real time and displays the value on the display screen of the high-frequency induction generating host 2. At the same time, the nitrogen nozzle 9 sprays nitrogen at a constant flow rate and uniformly on the welding part of the blade and knife body, and the flow rate is dynamically adjusted according to the monitored welding temperature. At the same time, the micro vibration motor 86 is started during the welding process to defoam the melt during welding. After the welding is completed, the micro vibration motor 86 stops working. At this time, the electric push rod 51 can be extended again, so that the welded knife body and blade withdraw from the U-shaped coil 3. At this time, the driving motor 55 drives the rotating table 56 on the gear ring 58 to rotate 90° counterclockwise, so that the welded knife body and blade rotate to the cooling station for cooling, and rotate to the loading and unloading station next time, so that the welded knife body and blade can be unloaded, and the next knife body and blade to be welded can be loaded again for welding operation. The above cyclic operation can realize the automatic welding of the knife body and blade.

[0084] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Diamond automatic high-frequency atmosphere protection welding machine, characterized in that Including: A base (1), at the top of the base (1), a high-frequency induction generating host (2) is fixedly installed, and a U-shaped coil (3) is fixedly installed on the outer wall of the high-frequency induction generating host (2); A protection mechanism (4), the protection mechanism (4) is arranged on the base (1); A driving mechanism (5), the driving mechanism (5) is arranged inside the protection mechanism (4); A workbench (6), the workbench (6) is displaced inside the protection mechanism (4) through the driving mechanism (5); A loading mechanism (7), the loading mechanism (7) is arranged on the workbench (6), and is used for positioning the material and conveying it to the U-shaped coil (3) for welding operation under the drive of the driving mechanism (5); A pressing mechanism (8), the pressing mechanism (8) is arranged on the workbench (6), and is used for restricting the position of the required welding blade.

2. The automatic high-frequency diamond welding machine with atmosphere protection according to claim 1, characterized in that, A nitrogen nozzle (9) is fixedly installed on the outer wall of the high-frequency induction generating host (2), and is used for spraying nitrogen at a fixed point into the U-shaped coil (3), and an infrared thermometer (10) is arranged on the protection mechanism (4), and is used for detecting the temperature when the U-shaped coil (3) is welded.

3. The automatic high-frequency atmosphere-protected diamond welding machine according to claim 2, wherein, The protection mechanism (4) includes: An observation board (41), the observation board (41) is fixedly connected to the top of the base (1), and the observation board (41) is made of a transparent material; An L-shaped board (42), the L-shaped board (42) is fixedly connected to the top of the base (1), the L-shaped board (42) is fixedly connected to the observation board (41), a circular groove (43) is opened at the top of the inner wall of the L-shaped board (42), and a feeding groove (44) is equidistantly opened on one side of the inner wall of the circular groove (43), and the infrared thermometer (10) is fixedly installed at the top of the inner wall of the L-shaped board (42).

4. The diamond automatic high-frequency atmosphere protection welding machine according to claim 1, characterized in that, The driving mechanism (5) includes: An electric push rod (51), the electric push rod (51) is fixedly installed on the outer wall of the high-frequency induction generating host (2); A slide rail (52), a moving groove is opened at the top of the base (1), and the slide rail (52) is equidistantly fixedly installed at the bottom of the inner wall of the moving groove; A slide seat (53), the slide seat (53) is slidably arranged on the slide rail (52); A moving box (54), the moving box (54) is fixedly installed on the top of the slide seat (53), and the workbench (6) is fixedly connected to the top of the moving box (54).

5. The automatic high-frequency diamond welding machine with atmosphere protection according to claim 4, characterized in that, The driving mechanism (5) further includes: A motor (55), the motor (55) is fixedly installed inside the moving box (54); A rotating table (56), the rotating table (56) is rotatably arranged on the moving box (54) through a rotating shaft; A gear (57), the output end of the motor (55) is in transmission connection with the gear (57); A toothed ring (58), the toothed ring (58) is fixedly installed on the outside of the rotating shaft, and the gear (57) is meshed with the toothed ring (58).

6. The automatic high-frequency atmosphere-protected diamond welding machine according to claim 5, wherein, The loading mechanism (7) includes: A slide bar (71), sliding grooves are equidistantly opened at the top of the rotating table (56), and the end of the slide bar (71) is fixedly connected to the inner wall of the sliding groove; Slider (72), the slider (72) is slidably inserted into the slide bar (71), a guide groove (77) is opened at the top end of the workbench (6), and the slider (72) is slidably inserted into the inner cavity of the guide groove (77); Loading plate (73), the loading plate (73) is fixedly connected to the top end of the slider (72), scales are equidistantly arranged at the top end of the loading plate (73), and a placement groove for placing the tool body is opened at the top end of the loading plate (73); First compression spring (74), the first compression spring (74) is sleeved outside the slide bar (71); First limiting component (75), the first limiting component (75) is arranged inside the loading plate (73) for limiting tool bodies of different lengths; Second limiting component (76), the second limiting component (76) is arranged on the loading plate (73) for limiting the blades; 7. The automatic high-frequency atmosphere-protected diamond welding machine according to claim 6, characterized in that, The first limiting component (75) includes: Drive rod (751), a drive groove is opened at the bottom end of the inner wall of the placement groove, and the end of the drive rod (751) is rotatably inserted into the inner wall of the drive groove; Slider block (752), the slider block (752) is located inside the drive groove, and the slider block (752) forms a lead screw drive with the drive rod (751); First limiting plate (753), the first limiting plate (753) is located inside the placement groove, the cross section of the first limiting plate (753) is L-shaped, and the first limiting plate (753) is fixedly connected to the top end of the slider block (752); Knob (754), the knob (754) is fixedly connected to one end of the drive rod (751) for adjusting the position of the first limiting plate (753).

8. The automatic high-frequency atmosphere-protected diamond welding machine according to claim 6, characterized in that, The second limiting component (76) includes: Extrusion plate (761), telescopic grooves are equidistantly opened on the loading plate (73), and the extrusion plate (761) is located inside the telescopic grooves; Extrusion rod (762), one end of the extrusion rod (762) is fixedly connected to the extrusion plate (761), and the other end of the extrusion rod (762) is slidably inserted into the loading plate (73); Second limiting plate (763), the second limiting plate (763) is fixedly connected to the other end of the extrusion rod (762), a V-shaped groove for horizontally limiting the blade is opened on the side of the second limiting plate (763) close to the loading plate (73), and an arc surface is opened on the side of the second limiting plate (763) away from the loading plate (73) for fitting the inner wall of the L-shaped plate (42); Second compression spring (764), the second compression spring (764) is sleeved outside the extrusion rod (762), one end of the second compression spring (764) is fixedly connected to the extrusion plate (761), and the other end of the second compression spring (764) is fixedly connected to the inner wall of the telescopic groove.

9. The automatic high-frequency diamond welding machine with atmosphere protection according to claim 1, wherein The pressing mechanism (8) includes: Fixed platform (81), the fixed platform (81) is fixedly connected to the top end of the rotating platform (56); Extrusion block (82), extrusion grooves are equidistantly opened inside the fixed platform (81), and the extrusion block (82) is located inside the extrusion grooves; Fixed rod (83), the fixed rod (83) is fixedly inserted and connected with the extrusion block (82), the top end of the fixed rod (83) passes through the extrusion groove and is slidably inserted and connected with the inner cavity of the annular groove (43), the top end of the fixed rod (83) is matched with the inner cavity of the feed groove (44), and a ball (87) is embedded at the top end of the fixed rod (83) for fitting the annular groove (43) and the feed groove (44); Pressing plate (84), the pressing plate (84) is fixedly connected to the bottom end of the fixed rod (83) for vertically limiting the blade; Third compression spring (85), the third compression spring (85) is sleeved outside the fixed rod (83), one end of the third compression spring (85) is fixedly connected with the extrusion block (82), and the other end of the third compression spring (85) is fixedly connected with the bottom end of the inner wall of the extrusion groove.

10. The diamond automatic high-frequency atmosphere protection welding machine according to claim 9, wherein, The pressing mechanism (8) further includes: Micro vibration motor (86), a groove is formed at the top end of the pressing plate (84), and the micro vibration motor (86) is fixedly installed inside the groove for applying vibration to the pressing plate (84); Cleaning plate (88), the cleaning plates (88) are equidistantly and fixedly connected to the outer wall of the fixed table (81) for cleaning the infrared thermometer (10).

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