Automatic kitchen knife blank welding machine

Abstract

The invention relates to the technical field of kitchen knife blank welding, and discloses a kitchen knife blank automatic welding machine which comprises a support, a welding assembly is installed at the top of the support, and the welding assembly comprises a knife handle adjusting part, a knife body adjusting part, a multi-angle welding part, a driving part and a monitoring and positioning part; the cutter handle adjusting part and the cutter body adjusting part are fixedly installed at the top of the support and are arranged in a bilateral symmetry mode, the multi-angle welding part is fixedly installed at the top of the support, and the cutter handle adjusting part is arranged to adjust the position of a cutter handle and rotate the cutter handle. The cutter body adjusting part is arranged to adjust the positions of the cutter body blade and the cutter body and rotate the cutter body, so that the cutter handle, the blade and the cutter body are kept aligned in the welding process, and the cutter handle, the blade and the cutter body are straightened when the positions deviate; and rotating the cutter handle and the cutter body in the welding process so that the welding gun can be aligned to the joint of the cutter handle and the cutter body for welding for a circle.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen knife blank welding, in particular to an automatic kitchen knife blank welding machine. Background Art

[0002] Kitchen knives are common knives in life. With the development of society, the manufacturing of knives has been transformed from manual production to factory production. Adhering to the principle of "good steel is used on the blade". Factory production divides the knife into three parts: knife body, blade and handle. Then the knife body, blade and handle are made separately, and then welded to form a knife blank. The knife blank undergoes a series of grinding processes to form the final knife. In order to improve welding efficiency, more and more manufacturers use automatic welding machines to weld knife blanks. However, compared with manual welding, automatic welding still has obvious problems. For example, during the welding process, due to factors such as welding heat input, welding sequence, and workpiece fixtures, the workpiece may be deformed. Especially when welding complex shapes or large-sized workpieces, the deformation problem is particularly prominent. When manual welding finds deformation, it uses external force to hammer the knife blank to straighten it, but the existing automatic welding machine does not have the function of detecting the deformation of the knife blank and the function of straightening the knife blank. Summary of the invention

[0003] The object of the present invention is to provide an automatic welding machine for kitchen knife blanks to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: an automatic welding machine for kitchen knife blanks, comprising a bracket, a welding assembly is installed on the top of the bracket, and the welding assembly comprises a handle adjustment part, a blade adjustment part, a multi-angle welding part, a driving part, and a monitoring and positioning part;

[0005] The handle adjustment part and the blade adjustment part are fixedly mounted on the top of the bracket, and the handle adjustment part and the blade adjustment part are symmetrically arranged on the left and right. The multi-angle welding part is fixedly mounted on the top of the bracket, and the multi-angle welding part is located in the central area of ​​the workbench. The driving part is arranged in the blade adjustment part. The monitoring and positioning part is divided into two parts, one part is arranged in the handle adjustment part, and the other part is arranged between the handle adjustment part and the blade adjustment part.

[0006] Furthermore, the tool handle adjustment part includes an electric slide rail, which is fixedly installed on the top of the bracket, a mounting frame is fixedly installed on the movable end of the electric slide rail, a cylinder is fixedly installed on the inner wall of the mounting frame, a mounting plate is fixedly installed on the extended end of the cylinder, a servo motor is fixedly installed on the top of the mounting plate, and a pneumatic chuck is fixedly installed on the output end of the servo motor.

[0007] Furthermore, the blade adjustment part includes an electric slide rail 2, which is fixedly installed on the top of the bracket, and a mounting frame 2 is fixedly installed on the movable end of the electric slide rail 2, and a fixed cylinder is fixedly installed on the top of the mounting frame 2, and a rotating cylinder 1 is rotatably connected to the interior of the fixed cylinder through a bearing, and a rotating cylinder 2 is rotatably connected to the interior of the rotating cylinder 1 through a bearing, and the rotating cylinder 1 and the rotating cylinder 2 are transmission-connected to the driving part, and a connecting rod 1 is fixedly installed on the right side surface of the rotating cylinder 1, and a connecting rod 2 is fixedly installed on the right side surface of the rotating cylinder 2, and a mounting plate 2 is fixedly installed on the right ends of the connecting rod 1 and the connecting rod 2, and the rotation trajectories of the two mounting plates 2 coincide, and a cylinder 2 is fixedly installed on the outer wall of one side of the mounting plate 2, and a pneumatic clamping claw is fixedly installed on the extended end of the cylinder 2.

[0008] Furthermore, the monitoring and positioning part includes a mounting plate three and an offset sensor. The mounting plate three is fixedly installed between the electric slide rail one and the electric slide rail two. A position sensor is fixedly installed on the top of the mounting plate three. Four position sensors are provided and are respectively located at the four corners of the top of the mounting plate three. The offset sensor is fixedly installed on the pneumatic chuck. Three offset sensors are provided and are distributed in a circular array on the pneumatic chuck.

[0009] Furthermore, the multi-angle welding part includes an electric slide rail three, two of which are provided and are symmetrically arranged front and back with respect to electric slide rails one and two. The movable end of the electric slide rail three is fixedly installed with an electric slide rail four, and the movable end of the electric slide rail four is fixedly installed with an electric turntable, and the rotating end of the electric turntable is fixedly installed with a laser welding gun.

[0010] Furthermore, the driving part includes a gear ring 1, a gear ring 2, and a reduction motor. The gear ring 1 is fixedly mounted on the rotating cylinder 1, the gear ring 2 is fixedly mounted on the rotating cylinder 2, the reduction motor is fixedly mounted on the top of the mounting frame 2, and two reduction motors are provided. A rotating shaft is fixedly mounted on the output end of the reduction motor, and a gear is fixedly mounted on the outer wall of the rotating shaft. The two gears are respectively meshed with the gear ring 1 and the gear ring 2.

[0011] Furthermore, a shell is fixedly installed on the top of the bracket, and the shell covers the welding assembly. The left and right outer walls of the shell are provided with through grooves, and the through grooves are aligned with the handle adjustment part and the blade adjustment part. An electric control box is fixedly installed inside the bracket.

[0012] Furthermore, a high-pressure air pump is fixedly installed on the top of the shell, and the air outlet end of the high-pressure air pump is connected to an air outlet main pipe, and the top of the air outlet main pipe is connected to diverter pipe 1 and diverter pipe 2 via three-way joint 2, the right end of diverter pipe 1 is connected to guide pipe 1, and the other end of guide pipe 1 is connected to an air outlet pipe via three-way joint 1, the air outlet pipe extends into the shell, and the lower end of the air outlet pipe is connected to a blow head, and the blow head is located directly above the processing area.

[0013] Furthermore, a heating box is fixedly installed on the top of the shell, the top of the heating box is connected to the diversion pipe 2, the right side of the heating box is connected to the guide pipe 2, the guide pipe 2 is connected to the air outlet pipe through the three-way joint 1, and an electric heater is fixedly installed on the front of the heating box, and the heating wire on the electric heater extends into the heating box.

[0014] Furthermore, a smoke inlet pipe is inserted into the front and back of the shell, one end of the smoke inlet pipe facing the shell is connected to a cigarette head, the other end of the smoke inlet pipe is connected to a connecting pipe, the lower end of the connecting pipe is connected to a filter box, a mounting frame three is fixedly installed on the bottom of the filter box, the mounting frame three is fixedly installed in the bracket, an exhaust pump is provided on the left side of the filter box through a pipeline, and an insertable filter box is plugged into the front of the filter box, and the insertable filter box extends into the filter box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A tool handle adjustment unit is provided to adjust the position of the tool handle and rotate the tool handle, and a blade adjustment unit is provided to adjust the position of the blade and the blade body as the blade body and rotate the blade body, so that the tool handle, blade and blade body are aligned during the welding process, and the tool handle, blade and blade body are straightened when the position is offset, and the tool handle and blade body are rotated during the welding process so that the welding gun can be aligned with the connection between the tool handle and the blade body for one circle of welding, and a monitoring and positioning unit is provided to monitor the position and angle of the tool handle, blade and blade body during the welding process at all times, and an alarm is issued when the positions of the three are offset, and then the tool handle, blade and blade body are realigned;

[0017] 2. Clamp the blade and the blade body respectively by two pneumatic clamping claws, adjust the position of the pneumatic clamping claws by the second air cylinder, so that the blade and the blade body are aligned, and the rotatable rotating cylinder 1 and the second rotating cylinder drive the connecting rod 1 and the second connecting rod to rotate, so that the blade and the blade body can make a circular motion, and the blade and the blade body can rotate relative to each other. When the blade and the blade body are twisted and offset, the blade body or the blade can be rotated to realign the blade and the blade body, and the electric slide rail 2 is set to adjust the position of the second mounting frame, so as to adjust the left and right direction of the blade body, so that the blade body contacts the handle;

[0018] 3. Monitor two positions on the blade through two position sensors to determine the position of the blade, and monitor two positions on the blade through two offset sensors to determine the position of the blade, so that the blade and the blade are aligned. When the blade and the blade are twisted and deflected, the difference between the corresponding positions of the blade and the blade will change, that is, the difference between the distance from the blade to the position sensor and the distance from the blade to the position sensor is monitored on the same line. When the blade and the handle are assembled together, it is determined by three offset sensors whether the central axes of the three are parallel;

[0019] 4. A high-pressure air pump is used to generate a high-pressure air flow. The air flow passes through the main air outlet pipe, three-way joint 2, diverter pipe 1, guide pipe 1, and air outlet pipe in sequence, and then enters the blow head. Then, it is blown from the blow head to the kitchen knife. The kitchen knife is cleaned with air before welding to avoid defects in welding caused by dust. After welding, a hot air flow is blown to the kitchen knife so that the temperature of the welding part of the kitchen knife can drop slowly to avoid the problem of cracks caused by too fast temperature drop of the welding part when the outside air temperature is too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 2 The structural diagram of the right side view;

[0022] Figure 3 For the present invention Figure 1 The structural diagram of the left side view;

[0023] Figure 4 It is a structural schematic diagram of the welding assembly of the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of the knife handle adjustment part of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the blade adjustment part of the present invention;

[0026] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;

[0027] Figure 8 It is a structural schematic diagram of the exploded view of the fixed cylinder, the first rotating cylinder and the second rotating cylinder of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the air blowing head and the heating box of the present invention;

[0029] Fig.10 It is a schematic structural diagram of the cigarette head and the filter box of the present invention.

[0030] In the figure: 1, bracket; 2, welding assembly; 21, tool handle adjustment part; 211, electric slide rail 1; 212, mounting frame 1; 213, cylinder 1; 214, mounting plate 1; 215, servo motor; 216, pneumatic chuck; 22, blade adjustment part; 221, electric slide rail 2; 222, mounting frame 2; 223, fixed cylinder; 224, rotating cylinder 1; 225, rotating cylinder 2; 226, connecting rod 1; 227, connecting rod 2; 228, mounting plate 2; 229, cylinder 2; 2210, pneumatic clamping claw; 23, multi-angle welding part; 231, electric slide rail 3; 232, electric slide rail 4; 233, electric turntable; 234, laser welding gun; 24, driving part; 241, Gear ring one; 242, gear ring two; 243, gear; 244, reduction motor; 245, rotating shaft; 25, monitoring and positioning part; 251, mounting plate three; 252, position sensor; 253, offset sensor; 3, housing; 4, through slot; 5, electric control box; 6, blow head; 7, air outlet pipe; 8, diverter pipe one; 9, heating box; 10, diverter pipe two; 11, guide pipe one; 12, guide pipe two; 13, air outlet main pipe; 14, high-pressure air pump; 15, three-way connector one; 16, three-way connector two; 17, electric heater; 18, smoking head; 19, smoke inlet pipe; 20, connecting pipe; 210, filter box; 220, mounting bracket three; 230, vacuum pump; 240, plug-in filter box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment 1

[0033] See also Figure 1-Figure 8 The present invention provides a technical solution: an automatic welding machine for kitchen knife blanks, comprising a bracket 1, a welding assembly 2 is installed on the top of the bracket 1, and the welding assembly 2 comprises a handle adjustment part 21, a blade adjustment part 22, a multi-angle welding part 23, a driving part 24, and a monitoring and positioning part 25;

[0034] The handle adjustment part 21 and the blade adjustment part 22 are fixedly mounted on the top of the bracket 1, and the handle adjustment part 21 and the blade adjustment part 22 are symmetrically arranged on the left and right. The multi-angle welding part 23 is fixedly mounted on the top of the bracket 1, and the multi-angle welding part 23 is located in the central area of ​​the workbench. The driving part 24 is arranged in the blade adjustment part 22. The monitoring and positioning part 25 is divided into two parts, one part is arranged in the handle adjustment part 21, and the other part is arranged between the handle adjustment part 21 and the blade adjustment part 22. The handle adjustment part 21 is arranged to adjust the position of the handle and rotate the handle, and the blade adjustment part 22 is arranged to adjust the position of the blade and the blade body. and rotating the blade body, so that the blade handle, blade and blade body are kept aligned during the welding process, and the blade handle, blade and blade body are straightened when the position is offset, and the blade handle and blade body are rotated during the welding process so that the welding gun can be aligned with the connection between the blade handle and the blade body for one circle of welding, a multi-angle welding part 23 is provided to adjust the position of the welding gun so that the welding gun can be aligned with the welding part, a driving part 24 is provided to drive the internal structure of the blade body adjustment part 22 to rotate, and a monitoring and positioning part 25 is provided to monitor the position and angle of the blade handle, blade and blade body during the welding process at all times, and an alarm is issued when the positions of the three are offset, and then the blade handle, blade and blade body are realigned;

[0035] The tool handle adjustment part 21 includes an electric slide rail 211, which is fixedly mounted on the top of the bracket 1, a mounting frame 212 is fixedly mounted on the movable end of the electric slide rail 211, a cylinder 213 is fixedly mounted on the inner wall of the mounting frame 212, a mounting plate 214 is fixedly mounted on the extended end of the cylinder 213, a servo motor 215 is fixedly mounted on the top of the mounting plate 214, and a pneumatic chuck 216 is fixedly mounted on the output end of the servo motor 215, and the tool handle is clamped by the pneumatic chuck 216 to The servo motor 215 drives the pneumatic chuck 216 to rotate, and then drives the knife handle to rotate, so that when the connection position between the knife handle and the blade is twisted and offset, the knife handle and the blade are aligned, and the position of the mounting plate 214 is adjusted up and down by the cylinder 213, and then the position of the servo motor 215 is adjusted, so that the center axis of the knife handle and the center axis of the blade are on the same horizontal plane, and the left and right positions of the mounting frame 212 are adjusted by the electric slide rail 211, and then the position of the knife handle is adjusted so that the knife handle can contact the blade;

[0036] The blade adjustment part 22 includes an electric slide rail 221, which is fixedly installed on the top of the bracket 1. A mounting frame 222 is fixedly installed on the movable end of the electric slide rail 221. A fixed cylinder 223 is fixedly installed on the top of the mounting frame 222. The interior of the fixed cylinder 223 is rotatably connected to a rotating cylinder 224 through a bearing. The interior of the rotating cylinder 224 is rotatably connected to a rotating cylinder 225 through a bearing. The rotating cylinders 1 224 and 225 are transmission-connected to the driving part 24. A connecting rod 1 226 is fixedly installed on the right side of the rotating cylinder 1 224. A connecting rod 227 is fixedly installed on the right side of the rotating cylinder 225. The right ends of the connecting rods 1 226 and 227 are fixedly installed with mounting plates 228. The rotation trajectories of the two mounting plates 228 overlap. A second cylinder 229 is fixedly installed on the outer wall of one side of the second cylinder 228, and a pneumatic clamping claw 2210 is fixedly installed on the extended end of the second cylinder 229. The two pneumatic clamping claws 2210 clamp the blade and the blade body respectively, and the position of the pneumatic clamping claw 2210 is adjusted by the second cylinder 229 to align the blade and the blade body. The rotatable rotating cylinder 1 224 and the second rotating cylinder 225 drive the connecting rod 1 226 and the connecting rod 227 to rotate, so that the blade body composed of the blade and the blade body can make a circular motion, and the blade and the blade body can rotate relatively. When the blade and the blade body are twisted and offset, the blade body or the blade can be rotated to realign the blade and the blade body. The electric slide rail 221 is provided to adjust the position of the second mounting frame 222, so as to adjust the left and right direction of the blade body so that the blade body contacts the handle;

[0037] The monitoring positioning part 25 includes a mounting plate 3 251 and an offset sensor 253. The mounting plate 3 251 is fixedly mounted between the electric slide rail 1 211 and the electric slide rail 2 221. A position sensor 252 is fixedly mounted on the top of the mounting plate 3 251. Four position sensors 252 are provided and are respectively located at the four corners of the top of the mounting plate 3 251. The offset sensor 253 is fixedly mounted on the pneumatic chuck 216. Three offset sensors 253 are provided and are distributed in a circular array on the pneumatic chuck 216. Through the two position sensors 25 2. Monitor two positions on the blade to determine the position of the blade. Use two offset sensors 253 to monitor two positions on the blade to determine the position of the blade, so that the blade and the blade are aligned. When the blade and the blade are twisted and deflected, the difference between the corresponding positions of the blade and the blade will change, that is, the difference between the distance from the blade to the position sensor 252 and the distance from the blade to the position sensor 252 are monitored on the same line. Use three offset sensors 253 to determine whether the central axes of the blade and the handle are parallel when they are assembled together.

[0038] The multi-angle welding part 23 includes an electric slide rail 3 231, two electric slide rails 3 231 are provided, and are symmetrically arranged with respect to the electric slide rail 1 211 and the electric slide rail 2 221, the movable end of the electric slide rail 3 231 is fixedly installed with an electric slide rail 4 232, the movable end of the electric slide rail 4 232 is fixedly installed with an electric turntable 233, and the rotating end of the electric turntable 233 is fixedly installed with a laser welding gun 234, welding is performed by the laser welding gun 234, the angle of the laser welding gun 234 is adjusted by the electric turntable 233, and the position of the laser welding gun 234 is adjusted by the electric slide rail 3 231 and the electric slide rail 4 232, so that the laser welding gun 234 can be aligned with the welding position;

[0039] The driving part 24 includes a gear ring 1 241, a gear ring 242, and a reduction motor 244. The gear ring 1 241 is fixedly mounted on the rotating cylinder 1 224, the gear ring 242 is fixedly mounted on the rotating cylinder 225, the reduction motor 244 is fixedly mounted on the top of the mounting frame 222, and two reduction motors 244 are provided. A rotating shaft 245 is fixedly mounted on the output end of the reduction motor 244, and a gear 243 is fixedly mounted on the outer wall of the rotating shaft 245. The two gears 243 are respectively meshed with the gear ring 1 241 and the gear ring 242. The reduction motor 244 drives the rotating shaft 245 to rotate, thereby driving the gear 243 to rotate. The two gears 243 respectively drive the gear ring 1 241 and the gear ring 242 to rotate, thereby causing the rotating cylinder 1 224 and the rotating cylinder 225 to rotate.

[0040] A shell 3 is fixedly installed on the top of the bracket 1, and the shell 3 covers the welding assembly 2. Through grooves 4 are opened on the left and right outer walls of the shell 3, and the through grooves 4 are aligned with the handle adjustment part 21 and the blade adjustment part 22. An electric control box 5 is fixedly installed inside the bracket 1. The shell 3 is set to cover the welding assembly 2 to protect the welding assembly 2. The electric control box 5 is set to control the operation of the electrical equipment in the welding assembly 2.

[0041] Working principle: When in use, insert the knife handle into the pneumatic chuck 216, insert the blade and the blade body into the two pneumatic claws 2210 respectively, then rotate the rotating cylinder 1 224 and the rotating cylinder 2 225 respectively to adjust the position of the blade and the blade body so that the blade and the blade body are aligned, then turn on the two cylinders 229 to push the pneumatic claws 2210 to move so that the blade and the blade body are tightly attached to form the blade body, turn on the servo motor 215 to drive the pneumatic chuck 216 to rotate, and then drive the knife handle to rotate so that the upper part of the knife handle is aligned with the upper part of the blade body, then turn on the electric slide rail 221 and the electric slide rail 1 211 to drive the blade and the knife handle to move so that the blade and the knife handle are tightly attached, then turn on the electric slide rail 3 2 31 and the electric slide rail four 232 adjust the position of the electric turntable 233, turn on the electric turntable 233 to drive the laser welding gun 234 to rotate, so that the laser welding gun 234 is aimed at the welding part, and then welding is performed. Before welding, the three offset sensors 253 are used to locate whether the central axes of the handle, the blade and the blade body are parallel, and then fine-tuning is performed. During the welding process, if the position sensor 252 detects that the blade and the blade body have a torsional offset, the rotating cylinder one 224 or the rotating cylinder two 225 can be rotated to twist the blade body or the blade. Before the welding part is completely cooled down, the welding part is twisted and then re-welded, thereby improving the welding yield rate and no manual straightening is required.

[0042] Embodiment 2

[0043] See also Figure 1-Figure 10 The present invention provides a technical solution: an automatic welding machine for kitchen knife blanks, comprising a bracket 1, a welding assembly 2 is installed on the top of the bracket 1, and the welding assembly 2 comprises a handle adjustment part 21, a blade adjustment part 22, a multi-angle welding part 23, a driving part 24, and a monitoring and positioning part 25;

[0044] The handle adjustment part 21 and the blade adjustment part 22 are fixedly mounted on the top of the bracket 1, and the handle adjustment part 21 and the blade adjustment part 22 are symmetrically arranged. The multi-angle welding part 23 is fixedly mounted on the top of the bracket 1, and the multi-angle welding part 23 is located in the central area of ​​the workbench. The driving part 24 is arranged in the blade adjustment part 22. The monitoring and positioning part 25 is divided into two parts, one part is arranged in the handle adjustment part 21, and the other part is arranged between the handle adjustment part 21 and the blade adjustment part 22.

[0045] The tool handle adjustment part 21 includes an electric slide rail 211, which is fixedly mounted on the top of the bracket 1, a mounting frame 212 is fixedly mounted on the movable end of the electric slide rail 211, a cylinder 213 is fixedly mounted on the inner wall of the mounting frame 212, a mounting plate 214 is fixedly mounted on the extended end of the cylinder 213, a servo motor 215 is fixedly mounted on the top of the mounting plate 214, and a pneumatic chuck 216 is fixedly mounted on the output end of the servo motor 215;

[0046] The blade adjustment part 22 includes an electric slide rail 221, which is fixedly installed on the top of the bracket 1. A mounting frame 222 is fixedly installed on the movable end of the electric slide rail 221. A fixed cylinder 223 is fixedly installed on the top of the mounting frame 222. A rotating cylinder 224 is rotatably connected to the interior of the fixed cylinder 223 through a bearing. A rotating cylinder 225 is rotatably connected to the interior of the rotating cylinder 224 through a bearing. The rotating cylinder 224 and the rotating cylinder 225 are transmission-connected to the driving part 24. A connecting rod 226 is fixedly installed on the right side of the rotating cylinder 224. A connecting rod 227 is fixedly installed on the right side of the rotating cylinder 225. A mounting plate 228 is fixedly installed on the right ends of the connecting rod 1 226 and the connecting rod 227. The rotation trajectories of the two mounting plates 228 overlap. A cylinder 229 is fixedly installed on the outer wall of one side of the mounting plate 228. A pneumatic claw 2210 is fixedly installed on the extended end of the cylinder 229.

[0047] The monitoring and positioning part 25 includes a mounting plate 3 251 and an offset sensor 253. The mounting plate 3 251 is fixedly mounted between the electric slide rail 1 211 and the electric slide rail 2 221. A position sensor 252 is fixedly mounted on the top of the mounting plate 3 251. Four position sensors 252 are provided and are respectively located at the four corners of the top of the mounting plate 3 251. The offset sensor 253 is fixedly mounted on the pneumatic chuck 216. Three offset sensors 253 are provided and are distributed in a circular array on the pneumatic chuck 216.

[0048] The multi-angle welding part 23 includes an electric slide rail 3 231, two electric slide rails 3 231 are provided, and are symmetrically arranged with respect to the electric slide rail 1 211 and the electric slide rail 2 221, the movable end of the electric slide rail 3 231 is fixedly installed with an electric slide rail 4 232, the movable end of the electric slide rail 4 232 is fixedly installed with an electric turntable 233, and the rotating end of the electric turntable 233 is fixedly installed with a laser welding gun 234;

[0049] The driving part 24 includes a gear ring 1 241, a gear ring 242, and a reduction motor 244. The gear ring 1 241 is fixedly mounted on the rotating cylinder 1 224, the gear ring 242 is fixedly mounted on the rotating cylinder 225, the reduction motor 244 is fixedly mounted on the top of the mounting frame 222, and two reduction motors 244 are provided. A rotating shaft 245 is fixedly mounted on the output end of the reduction motor 244, and a gear 243 is fixedly mounted on the outer wall of the rotating shaft 245. The two gears 243 are respectively meshed with the gear ring 1 241 and the gear ring 2 242;

[0050] A housing 3 is fixedly installed on the top of the bracket 1, and the housing 3 covers the welding assembly 2. Through grooves 4 are provided on the left and right outer walls of the housing 3, and the through grooves 4 are aligned with the handle adjustment part 21 and the blade adjustment part 22. An electric control box 5 is fixedly installed inside the bracket 1;

[0051] A high-pressure air pump 14 is fixedly installed on the top of the shell 3, and the air outlet end of the high-pressure air pump 14 is connected with an air outlet main pipe 13. The top of the air outlet main pipe 13 is connected with a shunt pipe 1 8 and a shunt pipe 2 10 through a three-way joint 16. The right end of the shunt pipe 8 is connected with a guide pipe 11, and the other end of the guide pipe 11 is connected with an air outlet pipe 7 through a three-way joint 15. The air outlet pipe 7 extends into the shell 3, and the lower end of the air outlet pipe 7 is connected with a blow head 6. The blow head 6 is located just above the processing area. A high-pressure airflow is generated by the high-pressure air pump 14. The airflow flows through the air outlet main pipe 13, the three-way joint 16, the shunt pipe 1 8, the guide pipe 11, and the air outlet pipe 7 in sequence, and then enters the blow head 6, and then blows from the blow head 6 to the kitchen knife. The kitchen knife is blown and cleaned before welding to avoid defects in welding caused by dust.

[0052] A heating box 9 is fixedly installed on the top of the shell 3, and the top of the heating box 9 is connected to the shunt pipe 10. The right side of the heating box 9 is connected to the guide pipe 12, which is connected to the outlet pipe 7 through the three-way joint 15. An electric heater 17 is fixedly installed on the front of the heating box 9. The heating wire on the electric heater 17 extends into the heating box 9. The shunt pipe 10 and the shunt pipe 18 are connected to the three-way joint 16 at the connection point. Solenoid valves are provided. The high-pressure airflow is introduced into the heating box 9 through the shunt pipe 10, and then the heating box 9 heats the airflow. The heated airflow flows through the guide pipe 12, the three-way joint 15, and the outlet pipe 7 in turn and enters the air blowing head 6. That is, after welding, the hot airflow is blown to the kitchen knife, so that the temperature of the kitchen knife welding part can slowly drop, avoiding the problem of cracks caused by too fast temperature drop of the welding part when the outside air temperature is too low;

[0053] A smoke inlet pipe 19 is inserted into the front and back of the shell 3, and one end of the smoke inlet pipe 19 facing the shell 3 is connected to a smoking head 18, and the other end of the smoke inlet pipe 19 is connected to a connecting pipe 20, and the lower end of the connecting pipe 20 is connected to a filter box 210, and a mounting frame 3 220 is fixedly installed at the bottom of the filter box 210, and the mounting frame 3 220 is fixedly installed in the bracket 1, and an exhaust pump 230 is connected to the left side of the filter box 210 through a pipeline, and an inserted filter box 240 is plugged into the front of the filter box 210, and the inserted filter box 240 extends into the filter box 210. When the blower head 6 blows air to clean the kitchen knife and when welding, the smoking head 18 inhales air with dust and smoke, and the air flows through the smoke inlet pipe 19 and the connecting pipe 20 in turn into the filter box 210, and then is filtered by the inserted filter box 240 and then sucked away and discharged by the exhaust pump 230, so as to avoid dust and smoke spreading in the shell 3, which will cause the problem of inconvenience in later cleaning.

[0054] Working principle: When in use, before welding, turn on the high-pressure air pump 14 and the vacuum pump 230 at the same time. The high-pressure air pump 14 generates a high-pressure airflow, which flows through the main air outlet pipe 13, the two-way joint 16, the diverter pipe 18, the guide pipe 11, the air outlet pipe 7 in sequence, and then enters the blow head 6, and then blows from the blow head 6 to the kitchen knife. The kitchen knife is blown clean before welding to prevent dust from causing defects in welding. At the same time, the smoking head 18 inhales the dusty air, and the air flows through the smoke inlet pipe 19 and the connecting pipe 20 in sequence to enter the filter box 210, and then is filtered by the plug-in filter box 240 and sucked by the vacuum pump 230. During welding, the smoking head 18 sucks away the air with smoke to prevent the smoke from diffusing in the shell 3. After welding, the solenoid valve at the shunt pipe 1 8 is closed, and the solenoid valve at the shunt pipe 2 10 is opened. At this time, the high-pressure airflow enters the heating box 9 from the shunt pipe 2 10, and is then heated by the electric heater 17. The heated airflow flows through the guide pipe 2 12, the three-way joint 15, and the air outlet pipe 7 in turn and enters the blower head 6, blowing the hot air flow toward the kitchen knife, so that the temperature of the kitchen knife welding part can slowly drop, avoiding the problem of cracks caused by too fast temperature drop at the welding part when the outside air temperature is too low.

[0055] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. An automatic welding machine for kitchen knife blanks, comprising a bracket (1), characterized in that: A welding assembly (2) is installed on the top of the bracket (1), and the welding assembly (2) comprises a handle adjustment portion (21), a blade adjustment portion (22), a multi-angle welding portion (23), a driving portion (24), and a monitoring and positioning portion (25); The handle adjustment part (21) and the blade adjustment part (22) are fixedly mounted on the top of the bracket (1), and the handle adjustment part (21) and the blade adjustment part (22) are symmetrically arranged on the left and right; the multi-angle welding part (23) is fixedly mounted on the top of the bracket (1), and the multi-angle welding part (23) is located in the central area of ​​the workbench; the driving part (24) is arranged in the blade adjustment part (22); and the monitoring and positioning part (25) is divided into two parts, one part is arranged in the handle adjustment part (21), and the other part is arranged between the handle adjustment part (21) and the blade adjustment part (22).

2. The automatic welding machine for kitchen knife blanks according to claim 1, characterized in that: The tool handle adjustment portion (21) comprises an electric slide rail (211), the electric slide rail (211) is fixedly mounted on the top of the bracket (1), a mounting frame (212) is fixedly mounted on the movable end of the electric slide rail (211), a cylinder (213) is fixedly mounted on the inner wall of the mounting frame (212), a mounting plate (214) is fixedly mounted on the extended end of the cylinder (213), a servo motor (215) is fixedly mounted on the top of the mounting plate (214), and a pneumatic chuck (216) is fixedly mounted on the output end of the servo motor (215).

3. The automatic welding machine for kitchen knife blanks according to claim 1, characterized in that: The blade adjustment part (22) comprises an electric slide rail 2 (221), the electric slide rail 2 (221) is fixedly mounted on the top of the bracket (1), a mounting frame 2 (222) is fixedly mounted on the movable end of the electric slide rail 2 (221), a fixed cylinder (223) is fixedly mounted on the top of the mounting frame 2 (222), the interior of the fixed cylinder (223) is rotatably connected to a rotating cylinder 1 (224) via a bearing, the interior of the rotating cylinder 1 (224) is rotatably connected to a rotating cylinder 2 (225) via a bearing, and the rotating cylinder 1 (224) and the rotating cylinder 2 (225) are rotatably connected to each other. 5) is connected to the driving part (24) in driving connection, a connecting rod 1 (226) is fixedly installed on the right side surface of the rotating cylinder 1 (224), a connecting rod 2 (227) is fixedly installed on the right side surface of the rotating cylinder 2 (225), a mounting plate 2 (228) is fixedly installed on the right ends of the connecting rod 1 (226) and the connecting rod 2 (227), the rotational trajectories of the two mounting plates 2 (228) overlap, a cylinder 2 (229) is fixedly installed on the outer wall of one side of the mounting plate 2 (228), and a pneumatic clamping claw (2210) is fixedly installed on the extended end of the cylinder 2 (229).

4. The automatic knife blank welding machine according to claim 1, characterized in that: The monitoring positioning part (25) comprises a mounting plate three (251) and an offset sensor (253). The mounting plate three (251) is fixedly mounted between the electric slide rail one (211) and the electric slide rail two (221). A position sensor (252) is fixedly mounted on the top of the mounting plate three (251). Four position sensors (252) are provided and are respectively located at the four corners of the top of the mounting plate three (251). The offset sensor (253) is fixedly mounted on the pneumatic chuck (216). Three offset sensors (253) are provided and are distributed in a circular array on the pneumatic chuck (216).

5. The automatic welding machine for kitchen knife blanks according to claim 1, characterized in that: The multi-angle welding part (23) comprises an electric slide rail three (231), two electric slide rails three (231) are provided, and are symmetrically arranged in front and back with respect to the electric slide rail one (211) and the electric slide rail two (221), the movable end of the electric slide rail three (231) is fixedly installed with an electric slide rail four (232), the movable end of the electric slide rail four (232) is fixedly installed with an electric turntable (233), and the rotating end of the electric turntable (233) is fixedly installed with a laser welding gun (234).

6. The automatic knife blank welding machine according to claim 1, characterized in that: The driving part (24) comprises a gear ring 1 (241), a gear ring 2 (242), and a reduction motor (244); the gear ring 1 (241) is fixedly mounted on the rotating cylinder 1 (224); the gear ring 2 (242) is fixedly mounted on the rotating cylinder 2 (225); the reduction motor (244) is fixedly mounted on the top of the mounting frame 2 (222); and two reduction motors (244) are provided; a rotating shaft (245) is fixedly mounted on the output end of the reduction motor (244); a gear (243) is fixedly mounted on the outer wall of the rotating shaft (245); and the two gears (243) are respectively meshed with the gear ring 1 (241) and the gear ring 2 (242).

7. The automatic knife blank welding machine according to claim 1, characterized in that: A shell (3) is fixedly mounted on the top of the bracket (1), and the shell (3) covers the welding assembly (2). The left and right outer walls of the shell (3) are both provided with through grooves (4), and the through grooves (4) are aligned with the handle adjustment part (21) and the blade adjustment part (22). An electric control box (5) is fixedly mounted inside the bracket (1).

8. The automatic knife blank welding machine according to claim 7, characterized in that: A high-pressure air pump (14) is fixedly installed on the top of the shell (3); the air outlet end of the high-pressure air pump (14) is connected to an air outlet main pipe (13); the top of the air outlet main pipe (13) is connected to a diverter pipe (8) and a diverter pipe (10) via a three-way joint (16); the right end of the diverter pipe (8) is connected to a guide pipe (11); the other end of the guide pipe (11) is connected to an air outlet pipe (7) via a three-way joint (15); the air outlet pipe (7) extends into the shell (3); the lower end of the air outlet pipe (7) is connected to a blow head (6); the blow head (6) is located directly above the processing area.

9. The automatic knife blank welding machine according to claim 7, characterized in that: A heating box (9) is fixedly mounted on the top of the shell (3), the top of the heating box (9) is connected to the second diversion pipe (10), the right side of the heating box (9) is connected to the second flow guide pipe (12), the second flow guide pipe (12) is connected to the air outlet pipe (7) through the first three-way joint (15), and an electric heater (17) is fixedly mounted on the front of the heating box (9), the heating wire on the electric heater (17) extends into the heating box (9).

10. The automatic knife blank welding machine according to claim 7, characterized in that: A smoke inlet pipe (19) is inserted through the front and back sides of the shell (3); one end of the smoke inlet pipe (19) facing the inside of the shell (3) is connected to a cigarette holder (18); the other end of the smoke inlet pipe (19) is connected to a connecting pipe (20); the lower end of the connecting pipe (20) is connected to a filter box (210); a mounting frame three (220) is fixedly mounted on the bottom of the filter box (210); the mounting frame three (220) is fixedly mounted in the bracket (1); a suction pump (230) is connected to the left side of the filter box (210) via a pipeline; an insertable filter box (240) is plugged into the front side of the filter box (210); the insertable filter box (240) extends into the filter box (210).

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