An assembly welding device for precision mold manufacturing

Abstract

The present invention belongs to the technical field of mold manufacturing welding, and specifically provides an assembly welding device for precision mold manufacturing, including a main controller, wherein the upper part of the main controller is rotatably provided with a main turntable, the upper wall circumference of the main turntable is evenly distributed with movable grooves, and the movable grooves are provided with a flip-type omnidirectional clamping component, and the upper wall center circumference of the main turntable is evenly distributed with a positioning pushing mechanism, and the positioning pushing mechanism is arranged corresponding to the movable grooves. A loading mechanism, an adjustable laser welding component, a high-definition camera and a discharge plate are sequentially provided on the outer wall of the main controller along the circumferential direction; the present invention can automatically load and splice the mold, and use a flip-type structure to automatically change the surface of the mold that requires double-sided welding without changing the clamping state, avoiding secondary clamping and reducing welding errors; vertical extrusion clamping is performed on the precision mold that requires stacking welding, and the welding surface is automatically flipped, which is suitable for molds of various specifications and realizes the automation of mold manufacturing.

Description

Technical Field

[0001] The present invention belongs to the technical field of mold manufacturing welding, and specifically relates to an assembly welding device for precision mold manufacturing. Background Art

[0002] Molds are various dies and tools used in industrial production to produce desired products through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. Simply put, molds are tools used to create shaped objects. These tools are composed of various parts, and different molds are composed of different parts. The manufacture of precision molds, due to their complex shapes and high precision requirements, often requires laser welding after assembly to minimize the impact on mold accuracy and surface quality.

[0003] When faced with molds that require double-sided welding on both sides, the existing assembly and welding devices for precision molds require manual intervention to flip them over and re-clamp and position them. The secondary clamping is time-consuming and labor-intensive, and increases welding errors. In addition, when faced with molds that require stacked welding, it is difficult to automatically assemble and fix the molds, which reduces production efficiency and does not meet the production needs of industrialized and automated mold manufacturing. Summary of the Invention

[0004] In order to solve the above-mentioned existing problems, the present invention provides an assembly welding device for precision mold manufacturing, which can automatically load and splice precision molds that need to be assembled and welded, and use a flip structure to automatically change the surface of the mold that needs double-sided welding without changing the clamping state, avoiding secondary clamping and reducing welding errors; vertically extrude and clamp precision molds that need stacking welding and automatically flip the welding surface, which is suitable for molds of various specifications. In addition, a mobile welding head is used to automatically track the weld seam, thereby realizing the automation of mold manufacturing.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: An assembly and welding device for precision mold manufacturing provided by the present invention includes a main controller. A main turntable is rotatably provided on the upper part of the main controller. The main turntable is driven by a main power motor. Activity grooves are evenly distributed in a circular pattern on the upper wall of the main turntable. A flip-type omnidirectional clamping component is provided in the activity grooves. Positioning and pushing mechanisms are evenly distributed in a circular pattern at the center of the upper wall of the main turntable. The positioning and pushing mechanisms are arranged corresponding to the activity grooves. Along the circumferential direction, a feeding mechanism, an adjustable laser welding component, a high-definition camera, and a discharging plate are sequentially provided on the outer wall of the main controller. The feeding mechanism, the adjustable laser welding component, the high-definition camera, and the discharging plate are respectively arranged corresponding to the activity grooves evenly distributed in a circular pattern; The flip-type omnidirectional clamping component includes a multiple clamping mechanism and a vertical clamping mechanism. The multiple clamping mechanism and the vertical clamping mechanism are respectively embedded in the upper part of the inner wall of the activity groove; The vertical clamping mechanism includes a fourth telescopic column. The fourth telescopic column is embedded and rotatably arranged on the inner side wall of the activity groove close to the edge of the main turntable; The multiple clamping mechanism includes a second telescopic column, a connecting rod, and a third telescopic column. The second telescopic column is embedded and rotatably arranged on the inner wall of the activity groove. The second telescopic columns are symmetrically arranged with respect to the vertical plane where the central axis of the fourth telescopic column is located. The output ends of the symmetric second telescopic columns are arranged oppositely. The connecting rod is connected to the symmetric second telescopic columns. The connecting rod is in a U shape. The third telescopic column is arranged at the center of the connecting rod. The output end of the third telescopic column is arranged oppositely to the output end of the fourth telescopic column. A supporting pad is rotatably provided at the output end of the third telescopic column. The central axes of the second telescopic column, the third telescopic column, and the fourth telescopic column are in the same plane.

[0006] Further, the multiple clamping mechanism further includes a first rotating motor. The output end of the first rotating motor is connected to the second telescopic column. A clamping pad is provided at the output end of the second telescopic column. The vertical clamping mechanism further includes a second rotating motor. The output end of the second rotating motor is connected to the fourth telescopic column. An extrusion plate is provided at the output end of the fourth telescopic column. A first emitter is provided at the center of the upper wall of the extrusion plate. The first rotating motor and the second rotating motor are respectively embedded in the main turntable; Rubber pads are provided on the contact surfaces of the clamping pad, the supporting pad, and the extrusion plate with the mold, protecting the surface state of the mold while increasing the friction force;

[0007] When the mold needs to be welded on the front and back sides, the clamping pad clamps and assembles the mold. After the front side welding, the mold is flipped by the first rotating motor, and then the back side welding is performed. The flip structure is used to automatically change the side of the mold that needs double-sided welding without changing the clamping state, avoiding secondary clamping and reducing welding errors. When the mold needs to be stacked and assembled, the welding seam is on the side wall of the mold. The tilt of the laser welder will affect the weld quality. The stacked mold is squeezed, clamped and flipped by the extrusion plate and the support pad so that the weld seam is opposite to the laser welder. The precision mold that needs stacking welding is vertically squeezed and clamped and the welding surface is automatically flipped. Laser vertical welding ensures the weld quality and is suitable for molds of various specifications.

[0008] Preferably, a first telescopic column is embedded in the bottom wall of the movable groove, and a bearing plate is horizontally provided at the output end of the first telescopic column.

[0009] Furthermore, the positioning pushing mechanism includes a positioning push rod and a unloading push plate, the positioning push rod is horizontally arranged on the upper wall of the main turntable, and the unloading push plate is vertically arranged at the output end of the positioning push rod, the central axis of the positioning push rod and the center point of the upper wall of the supporting plate are in the same plane, and the upper wall of the unloading push plate is provided with a second launcher and a third launcher, and the second launcher and the third launcher are symmetrically arranged with respect to the vertical plane where the central axis of the positioning push rod is located.

[0010] Furthermore, the adjustable laser welding assembly includes a hydraulic telescopic column, a welding frame, a transverse limiting slide and a vertical limiting slide, the hydraulic telescopic column is vertically arranged on the side wall of the main controller, the welding frame is horizontally arranged at the telescopic end of the hydraulic telescopic column, the welding frame is arranged above the main turntable, an adjustment slot is provided on the inner side of the welding frame, the projection area of ​​the adjustment slot on the main turntable is larger than the coverage area of ​​the movable slot, the transverse limiting slide and the vertical limiting slide are respectively slidably arranged on the inner side of the welding frame, the transverse limiting slide and the vertical limiting slide are perpendicular to each other, the transverse limiting slide is slidably arranged at the lower part of the vertical limiting slide, and a slide slot is respectively provided on the transverse limiting slide and the vertical limiting slide;

[0011] Preferably, a first motor and a second motor are respectively provided on the side walls of the welding frame, a screw is provided at the output end of the first motor, the lateral limit slide is meshed and sleeved on the screw, an adjusting screw is provided at the output end of the second motor, the vertical limit slide is meshed and sleeved on the adjusting screw, a laser welder is slidably provided in the slide groove of the lateral limit slide, the laser welder slides in the slide groove of the vertical limit slide, a welding head and a first receiver are respectively provided at the lower end of the laser welder, and the first receiver is provided on one side of the welding head;

[0012] In the initial state, the welding head of the laser welder is at the center of the carrier plate. Taking this as the origin, the screw is driven to rotate by the first motor, and then the horizontal limit slide is driven to slide in the adjustment groove. The adjusting screw is driven to rotate by the second motor, and then the vertical limit slide is driven to slide in the adjustment groove. The horizontal limit slide and the vertical limit slide serve as the XY axes respectively, driving the laser welder to move according to the welding route input into the main controller in advance to perform continuous laser welding on the mold. After welding is completed, the laser welder is reset by the first motor and the second motor, and the adjustment is convenient.

[0013] Furthermore, the feeding mechanism includes a feeding telescopic column, a feeding push rod, a placement frame and a clamping block, the feeding telescopic column is arranged on one side of the main controller, the telescopic end of the feeding telescopic column is rotatably provided with a feeding turntable, the feeding push rod is horizontally arranged on the feeding turntable, the placement frame is arranged on the output end of the feeding push rod, a third motor is provided on one side of the placement frame, a placement screw is rotatably provided on the inner side of the placement frame, the placement screw is connected to the output end of the third motor, and the clamping block is engaged and sleeved on the placement screw;

[0014] Preferably, a loading splint is provided on the clamping block, the loading splint is L-shaped, and the loading splint adopts an electric telescopic structure. The loading splint is perpendicular to the clamping block, and a second receiver is provided at the end of the loading splint away from the clamping block. The second receiver receives the electrical signals emitted by the symmetrical second transmitter and the third transmitter respectively, thereby controlling the clamping of the mold assembly by the loading splint to ensure that the two molds to be assembled are symmetrical about the center plane of the carrier plate.

[0015] Preferably, the high-definition camera is arranged on the side of the main controller away from the loading telescopic column, and the output end of the high-definition camera faces the main turntable. The high-definition camera is used to shoot the weld, which is convenient for the staff to detect the weld quality in time.

[0016] Furthermore, the main controller adopts a PLC controller, and the main turntable, positioning push rod, first rotating motor, second rotating motor, first telescopic column, second telescopic column, third telescopic column, fourth telescopic column, first launcher, second launcher, third launcher, hydraulic telescopic column, first motor, second motor, third motor, loading telescopic column, loading turntable, loading push rod, loading splint, first receiver, second receiver, laser welder and high-definition camera are electrically connected to the main controller respectively.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows:

[0018] The present invention provides an assembly welding device for precision mold manufacturing, which automatically loads precision molds that need to be assembled and welded through a loading mechanism, and completes the splicing of the molds by combining the positioning of the positioning pushing mechanism and the clamping of the flipping omnidirectional clamping assembly. Driven by the rotation of the main turntable, the assembled molds pass through the adjustable laser welding assembly, the high-definition camera and the discharge plate in sequence, and the welds are welded by the adjustable laser welding assembly. After welding, the welds are photographed by the high-definition camera for visual weld inspection, and then flow into the next process through the discharge plate under the push of the unloading pushing plate, thereby realizing the automated process of precision mold assembly and welding; the flipping structure is used to automatically change the surface of the mold that needs double-sided welding without changing the clamping state, avoiding secondary clamping and reducing welding errors; the precision mold that needs stacking welding is vertically extruded and clamped and the welding surface is automatically flipped, which is suitable for molds of various specifications. In addition, a movable welding head is used to automatically track the welds, reduce thermal expansion during mold welding, and ensure the surface state of the mold, thereby realizing the automation of mold manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of an assembly welding device for precision mold manufacturing provided by the present invention;

[0020] Figure 2 A top view of the combined structure of the main turntable, the flip-type omnidirectional clamping assembly, and the adjustable laser welding assembly;

[0021] Figure 3 Schematic diagram of the combined structure of the main turntable, the flip-type omnidirectional clamping assembly and the positioning and pushing mechanism;

[0022] Figure 4 Schematic diagram of the combined structure of multiple clamping mechanisms and a load-bearing plate;

[0023] Figure 5 It is a structural diagram of the vertical clamping mechanism;

[0024] Figure 6 for Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 7 It is a structural diagram of an adjustable laser welding assembly;

[0026] Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at B in the middle;

[0027] Figure 9 It is a structural diagram of the feeding mechanism;

[0028] Figure 10 for Figure 9 Schematic diagram of the locally enlarged structure at point C in the middle.

[0029] Among them, 1. Main controller, 2. Main turntable, 3. Flip-type omnidirectional clamping assembly, 4. Positioning and pushing mechanism, 5. Adjustable laser welding assembly, 6. Loading mechanism, 7. High-definition camera, 8. Discharge plate, 9. Movable slot, 10. Multiple clamping mechanism, 11. Loading plate, 12. Vertical clamping mechanism, 13. First telescopic column, 14. Second telescopic column, 15. First rotating motor, 16. Clamping pad, 17. Connecting rod, 18. Third telescopic column, 19. Support pad, 20. Second rotating motor, 21. Fourth telescopic column, 22. Extrusion plate, 23. First launcher, 2 4. Positioning push rod, 25. Unloading push plate, 26. Second launcher, 27. Third launcher, 28. Hydraulic telescopic column, 29. Welding frame, 30. First motor, 31. Second motor, 32. Adjusting slot, 33. Horizontal limit slide, 34. Vertical limit slide, 35. Adjusting screw, 36. Laser welder, 37. Welding head, 38. First receiver, 39. Loading telescopic column, 40. Loading turntable, 41. Loading push rod, 42. Placement frame, 43. Third motor, 44. Placement screw, 45. Clamping block, 46. Loading splint, 47. Second receiver. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below with reference to specific embodiments. The technical features or connection relationships of the present invention that are not described in detail are all based on existing technologies.

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figures 1-10 As shown, the present invention provides an assembly welding device for precision mold manufacturing, including a main controller 1, and a main turntable 2 is provided on the upper part of the main controller 1, which is driven by a main power motor. The upper wall of the main turntable 2 is evenly distributed with movable grooves 9 on the circumference, and a flip-type omnidirectional clamping component 3 is provided in the movable groove 9. The upper wall center circumference of the main turntable 2 is evenly distributed with a positioning pushing mechanism 4, and the positioning pushing mechanism 4 is arranged corresponding to the movable groove 9. A loading mechanism 6, an adjustable laser welding component 5, a high-definition camera 7 and a discharge plate 8 are provided on the outer wall of the main controller 1 in sequence along the circumferential direction. The loading mechanism 6, the adjustable laser welding component 5, the high-definition camera 7 and the discharge plate 8 are respectively arranged corresponding to the active grooves 9 evenly distributed on the circumference. The high-definition camera 7 is arranged on the side of the main controller 1 away from the loading mechanism 6, and the output end of the high-definition camera 7 faces the main turntable 2. A first telescopic column 13 is embedded in the bottom wall of the movable groove 9, and a bearing plate 11 is horizontally provided at the output end of the first telescopic column 13.

[0033] The flipping omnidirectional clamping assembly 3 includes a multiple clamping mechanism 10 and a vertical clamping mechanism 12. The multiple clamping mechanism 10 and the vertical clamping mechanism 12 are respectively embedded in the upper part of the inner wall of the movable groove 9. The vertical clamping mechanism 12 includes a second rotating motor 20 and a fourth telescopic column 21. The fourth telescopic column 21 is embedded and rotatably arranged on the inner side wall of the movable groove 9 near the edge of the main turntable 2. The output end of the second rotating motor 20 is connected to the fourth telescopic column 21. The output end of the fourth telescopic column 21 is provided with a pressing plate 22. The center of the upper wall of the pressing plate 22 is provided with a first emitter 23.

[0034] The multiple clamping mechanism 10 includes a first rotating motor 15 and a second telescopic column 14. The second telescopic column 14 is embedded and rotatably arranged on the inner wall of the movable groove 9. The second telescopic columns 14 are symmetrically arranged with respect to the vertical plane where the central axis of the fourth telescopic column 21 is located. The output ends of the symmetric second telescopic columns 14 are arranged oppositely. The output end of the first rotating motor 15 is connected to the second telescopic column 14. The output end of the second telescopic column 14 is provided with a clamping pad 16. The first rotating motor 15 and the second rotating motor 20 are respectively embedded in the main turntable 2. A connecting rod 17 is connected to the symmetric second telescopic columns 14. The connecting rod 17 is in a U shape. The center of the connecting rod 17 is provided with a third telescopic column 18. The output end of the third telescopic column 18 is arranged oppositely to the output end of the fourth telescopic column 21. A supporting pad 19 is rotatably arranged on the output end of the third telescopic column 18. The central axes of the second telescopic column 14, the third telescopic column 18 and the fourth telescopic column 21 are in the same plane.

[0035] The positioning and pushing mechanism 4 includes a positioning push rod 24. The positioning push rod 24 is horizontally arranged on the upper wall of the main turntable 2. The output end of the positioning push rod 24 is vertically provided with a blanking push plate 25. The central axis of the positioning push rod 24 is in the same plane as the center point of the upper wall of the bearing plate 11. The upper wall of the blanking push plate 25 is provided with a second emitter 26 and a third emitter 27. The second emitter 26 and the third emitter 27 are symmetrically arranged with respect to the vertical plane where the central axis of the positioning push rod 24 is located.

[0036] The feeding mechanism 6 includes a feeding telescopic column 39. The feeding telescopic column 39 is arranged on one side of the main controller 1. The telescopic end of the feeding telescopic column 39 is rotatably provided with a feeding turntable 40. A feeding push rod 41 is horizontally arranged on the feeding turntable 40. A placing frame 42 is provided at the output end of the feeding push rod 41. A third motor 43 is provided on one side of the placing frame 42. A placing screw rod 44 is rotatably arranged inside the placing frame 42. The placing screw rod 44 is connected to the output end of the third motor 43. A clamping block 45 is meshed and sleeved on the placing screw rod 44. An upper feeding clamping plate 46 is provided on the clamping block 45. The upper feeding clamping plate 46 is in an L shape. The upper feeding clamping plate 46 adopts an electric telescopic structure. The upper feeding clamping plate 46 is perpendicular to the clamping block 45. A second receiver 47 is provided at the end of the upper feeding clamping plate 46 far from the clamping block 45.

[0037] The adjustable laser welding assembly 5 includes a hydraulic telescopic column 28, which is vertically arranged on the side wall of the main controller 1. The telescopic end of the hydraulic telescopic column 28 is horizontally provided with a welding frame 29, and the welding frame 29 is arranged above the main turntable 2. An adjustment slot 32 is provided on the inner side of the welding frame 29. The projection area of ​​the adjustment slot 32 on the main turntable 2 is larger than the coverage area of ​​the movable slot 9. A horizontal limit slide 33 and a vertical limit slide 34 are respectively slidably provided on the inner side of the welding frame 29. The horizontal limit slide 33 and the vertical limit slide 34 are perpendicular to each other. The horizontal limit slide 33 is slidably provided at the lower part of the vertical limit slide 34. The horizontal limit slide 33 and the vertical limit slide 34 are respectively slidably provided. There are slide grooves running through the horizontal limiting slide 34, and the first motor 30 and the second motor 31 are respectively provided on the side walls of the welding frame 29. A screw is provided at the output end of the first motor 30, and the horizontal limiting slide 33 is engaged and sleeved on the screw. An adjusting screw 35 is provided at the output end of the second motor 31, and the vertical limiting slide 34 is engaged and sleeved on the adjusting screw 35. A laser welder 36 is provided to slide in the slide groove of the horizontal limiting slide 33, and the laser welder 36 slides in the slide groove of the vertical limiting slide 34. A welding head 37 and a first receiver 38 are respectively provided at the lower end of the laser welder 36, and the first receiver 38 is provided on one side of the welding head 37.

[0038] The main controller 1 adopts a PLC controller, and the main turntable 2, the positioning push rod 24, the first rotating motor 15, the second rotating motor 20, the first telescopic column 13, the second telescopic column 14, the third telescopic column 18, the fourth telescopic column 21, the first launcher 23, the second launcher 26, the third launcher 27, the hydraulic telescopic column 28, the first motor 30, the second motor 31, the third motor 43, the loading telescopic column 39, the loading turntable 40, the loading push rod 41, the loading clamping plate 46, the first receiver 38, the second receiver 47, the laser welder 36 and the high-definition camera 7 are electrically connected to the main controller 1 respectively.

[0039] Working principle and workflow:

[0040] During specific use, the device is placed on the mold production line, the loading mechanism 6 is placed between the conveyor belts of the two groups of molds to be assembled, and the discharge plate 8 is connected to the conveyor belt of the next process; then, according to the weld shape of the precision mold to be assembled and welded, the welding route of the laser welder 36 is input into the main controller 1 in advance, which mainly controls the sliding distance of the horizontal limit slide 33 and the vertical limit slide 34. When the movable groove 9 rotates to the bottom of the welding frame 29, the welding head 37 is opposite to the center of the supporting plate 11.

[0041] In the first embodiment, when a precision mold needs to be welded on both sides, the welding route 1 and the welding route 2 of the laser welder 36 need to be input into the main controller 1. The welding route 1 and the welding route 2 correspond to the welding routes on the upper and lower sides of the mold respectively. The conveyor belts on both sides of the feeding mechanism 6 transport the mold 1 and the mold 2 respectively (the assembly mode between the mold 1 and the mold 2 can be flat or plug-in). It is stipulated that the transportation direction of the mold 1 and the mold 2 is toward the main turntable 2, and the side of the mold 1 and the mold 2 to be assembled is toward the main turntable 2; the main controller 1 is started, the main turntable 2 rotates, and a set of flip-type omnidirectional clamping components 3 is rotated to the feeding mechanism 6, and the first telescopic column 13 is extended to push The carrying plate 11 moves up until its upper wall is in the same plane as the upper wall of the main turntable 2. At the same time, the positioning push rod 24 there is extended according to the size of the mold, and the unloading push plate 25 slides on the upper wall of the carrying plate 11 until the distance between the end face of the unloading push plate 25 and the center of the carrying plate 11 is equal to the sum of half the length of the mold and the thickness of the loading clamping plate 46, and the positioning push rod 24 stops working; at the same time, the loading telescopic column 39 is extended, and the loading turntable 40 rotates, so that the output end of the loading push rod 41 is directed to the top of the conveyor belt where the mold is located. The loading push rod 41 is extended and the third motor 43 drives the placement screw 44 to rotate, so that the loading clamping plate 46 moves to the upper part of the mold. The loading telescopic column 39 contracts, and then the loading clamping plate 46 contracts, so that the loading clamping plate 46 clamps the mold 1, and then the loading turntable 40 rotates the mold 1 to the top of the main turntable 2, and the loading push rod 41 extends to transport the mold 1 to the carrier plate 11 until the end face of the loading clamping plate 46 is in contact with the unloading push plate 25. The same is true for the transportation of mold 2, ensuring that the end faces of mold 1 and mold 2 are in the same plane, and then the third motor 43 is started, and the placement screw 44 rotates, driving the clamping block 45 to slide in the placement frame 42. When the second receiver 47 receives the electrical signal sent by the second transmitter 26, the loading clamping plate 46 is released, and the mold 1 is placed on the carrier plate 11; similarly, through the adjustment of the loading telescopic column 39, the loading turntable 40, the loading push rod 41 and the third motor 43, the loading clamp 46 clamps the mold 2 and transfers it to the carrier plate 11. When the second receiver 47 receives the electrical signal sent by the third transmitter 27, the loading clamp 46 places the mold 2 on the carrier plate 11. At this time, the assembly surfaces of mold 1 and mold 2 are opposite, and the mold 1 as a whole and the mold 2 as a whole are symmetrical about the center plane of the carrier plate 11. The loading push rod 41 contracts and the loading turntable 40 rotates to move the loading clamp 46 to the top of the next mold 1 to wait for loading. The positioning push rod 24 here contracts and resets.

[0042] The first telescopic column 13 contracts, driving the carrier plate 11 and the molds 1 and 2 thereon downward, placing the molds 1 and 2 between the symmetrical clamping pads 16. The second telescopic column 14 starts to extend, and the symmetrical clamping pads 16 simultaneously push the molds 1 and 2 toward each other to complete the assembly. At this time, the assembled molds 1 and 2 are located in the center of the carrier plate 11. The clamping pads 16 squeeze and fit the side walls of the molds 1 and 2, providing a strong squeezing force. The rubber pads on the clamping pads are squeezed and deformed to protect the mold surface and provide strong friction.

[0043] During the assembly of mold 1 and mold 2, the main turntable 2 rotates to transport it to the bottom of the adjustable laser welding assembly 5. The distance between the welding frame 29 and the end face of the main turntable 2, that is, the distance between the welding head 37 and the mold welding surface, is adjusted by the telescopic hydraulic telescopic column 28. In the initial state, the welding head 37 of the laser welder 36 is at the center of the carrier plate 11. With this as the origin, the screw is driven to rotate by the first motor 30, and then the lateral limit slide 33 is driven to slide in the adjustment groove 32. The adjustment screw is driven by the second motor 31. 35 rotates, thereby driving the vertical limiting slide 34 to slide in the adjustment groove 32, and the horizontal limiting slide 33 and the vertical limiting slide 34 slide relative to each other. The horizontal limiting slide 33 and the vertical limiting slide 34 serve as XY axes respectively, driving the laser welder 36 to move according to the welding route one, and continuously laser welding is performed on the front side of the mold. After welding is completed, the laser welder 36 is reset by the first motor 30 and the second motor 31; then the first telescopic column 13 is extended and retracted, and the mold after the front welding connection is squeezed and clamped by the symmetrical clamping pads 16. At this time, the first rotating motor 15 is started and rotated 180 degrees, turning the back of the mold upward. The first telescopic column 13 is extended again to support the mold with the supporting plate 11. The laser welder 36 is moved according to the welding route two by the first motor 30 and the second motor 31, and continuously laser welding is performed on the back side of the mold. After welding is completed, the laser welder 36 is reset to wait for the welding of the next set of molds 1 and 2.

[0044] After the assembly and welding of mold 1 and mold 2 are completed, the main turntable 2 rotates, and the welded mold moves to the bottom of the high-definition camera 7. The high-definition camera 7 then takes pictures and records the weld on the back of the mold, and then moves down according to the supporting plate 11. The clamping pad 16 clamps the mold and rotates 180 degrees. The supporting plate 11 moves up to support it, and the high-definition camera 7 takes pictures and records the weld on the front of the mold, so that the staff can detect the quality of the weld in time. Then the main turntable 2 rotates again, and the assembled, welded and welded mold is moved to the discharge plate 8. At this time, the positioning push rod 24 is started again, and the unloading push plate 25 pushes the mold to the conveyor belt of the next process.

[0045] In the second embodiment, when the precision molds need to be stacked, assembled and welded, the conveyor belts on both sides of the loading mechanism 6 transport mold three and mold four respectively (the assembly mode between mold three and mold four can be flat or plug-in), and mold three is specified to be the lower mold, and its welding surface is transported upward, and mold four is specified to be the upper mold, and its welding surface is transported downward, and the dimensions of the assembly welding positions of mold three and mold four are the same; the main controller 1 is started, and referring to the steps in the first embodiment, the carrying plate 11 is flush with the upper wall of the main turntable 2, and the unloading push plate 25 is pushed out to locate the position of mold three, and the loading clamping plate 46 is clamped by adjusting the loading telescopic column 39, the loading turntable 40 and the loading push rod 41. At this time, the third motor 43 is started to clamp the mold three. The holding block 45 moves to the middle of the placement frame 42, and the loading turntable 40 rotates so that the loading clamping plate 46 clamping the mold three is facing the unloading push plate 25, and then the loading push rod 41 pushes the loading clamping plate 46. When the loading clamping plate 46 is in contact with the unloading push plate 25, the mold three is placed on the carrier plate 11. Similarly, the loading clamping plate 46 clamps the mold four and places the mold four on top of the mold three (if the sizes of the non-welding surfaces of the mold three and the mold four are different, the telescopic lengths of the loading telescopic column 39, the loading push rod 41 and the unloading push plate 25 can be input in advance according to their sizes to ensure the assembly accuracy of the mold three and the mold four). After the mold three and the mold four are stacked on the carrier plate 11, the positioning push rod 24 is retracted and reset.

[0046] The first telescopic column 13 contracts, driving the carrier plate 11 and the mold three and mold four thereon to move downward. At this time, the first rotating motor 15 is started, and the second telescopic column 14 drives the connecting rod 17 to rotate 90 degrees, thereby driving the third telescopic column 18 to rotate, so that the support pad 19 is above the mold four. Then the first telescopic column 13 extends, so that the mold three is between the symmetrical clamping pads 16. The second telescopic column 14 starts to extend, and the symmetrical clamping pads 16 synchronously clamp the mold three. At the same time, the third telescopic column 18 is started, so that the support pad 19 presses the mold four, and the clamping pad 16 squeezes and fits the side wall of the mold three, providing a strong extrusion pressure. The rubber pad on it is squeezed and deformed to protect the mold surface state and provide a strong friction force, while the support pad 19 and the mold three squeeze and clamp the mold four , thereby combining and positioning mold three and mold four; then the first telescopic column 13 contracts again, the carrying plate 11 moves down, and mold three is clamped by the symmetrical clamping pads 16. At the same time, the first rotating motor 15 starts to rotate, causing the clamping pad 16, mold three, mold four, the supporting pad 19 and the connecting rod 17 to flip over as a whole. After the flip is completed, the fourth telescopic column 21 is immediately started, and the extrusion plate 22 supports mold three, so that mold three and mold four are tightly fitted. At this time, the extrusion plate 22 and the supporting pad 19 jointly squeeze and clamp mold three and mold four, and the weld seam between mold three and mold four is in a vertical state. The first telescopic column 13 extends again, so that the carrying plate 11 is supported under mold three and mold four, and the second telescopic column 14 contracts, and the clamping pad 16 no longer clamps and restricts mold three;

[0047] During the assembly of mold three and mold four, the main turntable 2 rotates to transport it to the bottom of the adjustable laser welding assembly 5. Referring to Example 1, the position of the laser welder 36 is adjusted by the first motor 30 and the second motor 31 until the first receiver 38 receives the electrical signal transmitted by the first transmitter 23. Then, the distance between the welding head 37 and the weld seam is adjusted by the second motor 31 according to the thickness and size of mold three, so that the welding head 37 is directly above the weld seam. Then, the first telescopic column 13 retracts, and the supporting plate 11 no longer supports mold three and mold four. At the same time, the second rotating motor 20 rotates, thereby driving the fourth telescopic column 21, the extrusion plate 22, mold three, mold four and the support pad 19 to rotate as a whole. The welding head 37 welds the weld between mold three and mold four (if the welding surface of mold three and mold four is not circular, the hydraulic telescopic column 28 adjusts the distance between the welding head 37 and the mold during its rotation). After mold three and mold four rotate one circle, the laser welder 36 resets and waits for the next set of mold three and mold four to be welded.

[0048] After welding, the main turntable 2 rotates to move the mold to the bottom of the high-definition camera 7, the second rotating motor 20 is started again, and the high-definition camera 7 continuously shoots and records the weld; then the main turntable 2 rotates again, and the mold that has been assembled, welded and photographed is moved to the discharge plate 8. At this time, the second telescopic column 14 is started, and the clamping pad 16 squeezes and clamps the mold three again, the fourth telescopic column 21 shrinks, and then the first rotating motor 15 rotates to drive the mold to rotate. The first telescopic column 13 extends to make the supporting plate 11 support the mold. After that, the second telescopic column 14 and the third telescopic column 18 shrink and reset, and the first rotating motor 15 resets at the same time. Then the supporting plate 11 lifts the mold, the positioning push rod 24 is started again, and the unloading push plate 25 pushes the mold to the conveyor belt of the next process.

[0049] It is worth noting that the use of a PLC control system to control the use of the laser welder 36 is an existing technology and will not be described in detail here.

[0050] The above is the overall workflow of the present invention. Just repeat this step next time you use it.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An assembly welding device for precision mold manufacturing, comprising a main controller, wherein a main turntable is rotatably provided on the upper portion of the main controller, characterized in that: The upper wall of the main turntable is evenly distributed with movable grooves on its circumference, and a flip-type omnidirectional clamping assembly is provided in the movable grooves. Positioning and pushing mechanisms are evenly distributed on the central circumference of the upper wall of the main turntable, and the positioning and pushing mechanisms are arranged corresponding to the movable grooves. A feeding mechanism, an adjustable laser welding assembly, a high-definition camera and a discharge plate are sequentially provided on the outer wall of the main controller along the circumferential direction; The flip-type omnidirectional clamping assembly includes a multiple clamping mechanism and a vertical clamping mechanism, and the multiple clamping mechanism and the vertical clamping mechanism are respectively embedded in the upper part of the inner wall of the movable groove; The vertical clamping mechanism includes a fourth telescopic column, which is rotatably embedded in the inner wall of the movable groove near the edge of the main turntable; The multi-clamping mechanism includes a second telescopic column, a connecting rod, and a third telescopic column. The second telescopic column is embedded and rotatably arranged on the inner wall of the movable groove. The second telescopic column is symmetrically arranged about the vertical plane where the central axis of the fourth telescopic column is located. The connecting rod is connected to the symmetrical second telescopic column and is in a U shape. The third telescopic column is arranged at the center of the connecting rod. The output ends of the symmetrical second telescopic columns are arranged opposite to each other, the output ends of the third telescopic columns are arranged opposite to the output ends of the fourth telescopic columns, a support pad is rotatably provided on the output end of the third telescopic column, and the central axes of the second telescopic column, the third telescopic column and the fourth telescopic column are in the same plane; the multiple clamping mechanism also includes a first rotating motor, the output end of the first rotating motor is connected to the second telescopic column, the output end of the second telescopic column is provided with a clamping pad, the vertical clamping mechanism also includes a second rotating motor, the output end of the second rotating motor is connected to the fourth telescopic column, the output end of the fourth telescopic column is provided with an extrusion plate, the center of the upper wall of the extrusion plate is provided with a first launcher, and the first rotating motor and the second rotating motor are respectively embedded in the main turntable; A first telescopic column is embedded in the bottom wall of the movable groove, and a bearing plate is horizontally provided at the output end of the first telescopic column.

2. The assembly welding device for precision mold manufacturing according to claim 1, characterized in that: The positioning pushing mechanism includes a positioning push rod and a unloading push plate. The positioning push rod is horizontally arranged on the upper wall of the main turntable, and the unloading push plate is vertically arranged at the output end of the positioning push rod. The central axis of the positioning push rod and the center point of the upper wall of the supporting plate are in the same plane. The upper wall of the unloading push plate is provided with a second launcher and a third launcher, and the second launcher and the third launcher are symmetrically arranged with respect to the vertical plane where the central axis of the positioning push rod is located.

3. The assembly welding device for precision mold manufacturing according to claim 2, characterized in that: The adjustable laser welding assembly includes a hydraulic telescopic column, a welding frame, a transverse limit slide and a vertical limit slide. The hydraulic telescopic column is vertically arranged on the side wall of the main controller, the welding frame is horizontally arranged at the telescopic end of the hydraulic telescopic column, the welding frame is arranged above the main turntable, and an adjustment groove is provided on the inner side of the welding frame. The projection area of ​​the adjustment groove on the main turntable is larger than the coverage area of ​​the movable groove. The transverse limit slide and the vertical limit slide are respectively slidably arranged on the inner side of the welding frame, the transverse limit slide and the vertical limit slide are perpendicular to each other, and the transverse limit slide is slidably arranged at the lower part of the vertical limit slide, and the transverse limit slide and the vertical limit slide are respectively penetrated by a slide groove.

4. The assembly welding device for precision mold manufacturing according to claim 3, characterized in that: A first motor and a second motor are respectively provided on the side walls of the welding frame, a screw is provided at the output end of the first motor, and the lateral limiting slide is engaged and sleeved on the screw, an adjusting screw is provided at the output end of the second motor, and the vertical limiting slide is engaged and sleeved on the adjusting screw, a laser welder is provided in the sliding groove of the lateral limiting slide, and the laser welder slides in the sliding groove of the vertical limiting slide, a welding head and a first receiver are respectively provided at the lower end of the laser welder, and the first receiver is provided on one side of the welding head.

5. The assembly welding device for precision mold manufacturing according to claim 4, characterized in that: The loading mechanism includes a loading telescopic column, a loading push rod, a placement frame and a clamping block. The loading telescopic column is arranged on one side of the main controller. The telescopic end of the loading telescopic column is rotatably provided with a loading turntable. The loading push rod is horizontally provided on the loading turntable. The placement frame is provided on the output end of the loading push rod. A third motor is provided on one side of the placement frame. A placement screw is rotatably provided on the inner side of the placement frame. The placement screw is connected to the output end of the third motor. The clamping block is engaged and sleeved on the placement screw.

6. The assembly welding device for precision mold manufacturing according to claim 5, characterized in that: The clamping block is provided with a loading splint, which is L-shaped and adopts an electric telescopic structure. The loading splint is perpendicular to the clamping block, and a second receiver is provided at the end of the loading splint away from the clamping block.

7. The assembly welding device for precision mold manufacturing according to claim 6, characterized in that: The high-definition camera is arranged on a side of the main controller away from the feeding telescopic column, and the output end of the high-definition camera faces the main turntable.

Images