Turnover device of welding positioner

Abstract

The invention discloses a turnover device of a welding positioner, belongs to the technical field of welding displacement, and aims to solve the problems that a friction disc of an electromagnetic brake is abraded after being used for a long time, a clamping frame still deflects after rotating to a machining position, the abraded friction disc cannot be found in time, and batch workpieces are easily scrapped when the welding position is inaccurate. The device comprises a base and two supports symmetrically and fixedly connected to the top face of the base, the side walls of the two supports are jointly and rotationally connected with a rotating shaft, the side wall of the rotating shaft is fixedly connected with a deflection frame, the side wall of the rotating shaft is rotationally connected with a welding plate, and the side wall of each support is fixedly connected with a locking mechanism and a scale plate. According to the welding device, the locking mechanism and the detection mechanism are arranged, so that the welding plate is kept positioned, the detection mechanism and the alarm are arranged to give an alarm for abrasion of the friction disc, and the protection mechanism is arranged to prevent the problem of welding dislocation caused by the fact that an external welding head is not stopped in time.

Description

Technical Field

[0001] The invention relates to the technical field of welding positioner, in particular to a welding positioner flipping device. Background Art

[0002] The welding positioner is used to drag the workpiece to be welded and flip and position the workpiece in order to obtain a good welding position. It can meet various quality and appearance requirements of welded parts. It is classified as a welding auxiliary machine in the welding field. It has made great progress in my country's engineering machinery industry and has been widely used.

[0003] After searching, the patent with announcement number CN211219438U is: a welding positioner flipping device, including a supporting platform, a mounting plate fixedly connected to the left side of the upper end of the supporting platform, guide rails fixedly connected to the front and rear ends of the supporting platform, a movable plate slidably connected to the supporting platform through the guide rails, a machine base is provided on the upper end of the mounting plate and the movable plate, a servo motor is provided on the upper end of the left machine base, a first connecting rod is fixedly connected to the power shaft end of the servo motor, a fixed plate is fixedly connected to the right side of the upper end of the right machine base, a second connecting rod is rotatably connected to the left side of the fixed plate through a bearing, a clamping frame is provided between the first connecting rod and the second connecting rod, and a group of movable machine bases are set to adjust the distance between the two groups of machine bases to meet the clamping fixation of different specifications, so as to meet the wider applicability, and a plurality of groups of limit rings are provided to support and limit the connecting rod to prevent it from offset, so that its rotation and flipping are more stable.

[0004] However, the above patent still has some shortcomings during use, such as: the positioning of the clamping frame after rotation is mainly achieved by the electromagnetic brake built into the servo motor. The friction disc of the electromagnetic brake will wear after long-term use, which may easily cause the clamping frame to deflect after rotating to the processing position; the friction disc of the electromagnetic brake is arranged inside the servo motor, and the wear is often not discovered by the staff in time; when the welding position of the workpiece is inaccurate, protection cannot be carried out in time, which may easily cause the scrapping of batches of workpieces and cause losses.

[0005] In view of the above problems, a welding positioner flipping device is proposed. Summary of the invention

[0006] The object of the present invention is to provide a welding positioner flipping device, which is used to work and solve the problems in the above background that the friction disc of the electromagnetic brake is worn after long-term use, the clamping frame will still deflect after rotating to the processing position, the wear of the friction disc cannot be discovered in time, and the welding position is inaccurate, which easily causes the scrapping of batches of workpieces.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding positioner flipping device, comprising a base and two supports symmetrically fixedly connected to the top surface of the base, the side walls of the two supports are connected to a rotating shaft for common rotation, the side wall of the rotating shaft is fixedly connected to a deflection frame, the side wall of the rotating shaft is connected to a welding plate for rotation, the welding plate is arranged in the inner circle of the deflection frame, a fixing part is fixedly connected to the top surface of the welding plate, a motor is fixedly connected to the outer wall of one of the supports, the output shaft of the motor is fixedly connected to one end of the rotating shaft, and a locking mechanism and a scale are fixedly connected to the side wall of each support Plate, a detection mechanism is rotatably connected to the outer wall of the locking mechanism, one end of the detection mechanism is fixedly connected to the welding plate, a connecting mechanism is symmetrically fixedly connected to the side wall of the rotating shaft, one end of the two connecting mechanisms are fixedly connected to the side wall of the deflection frame, the locking mechanism, the detection mechanism and the connecting mechanism are all coaxially arranged with the rotating shaft, a protective mechanism is slidably arranged on the top surface of the welding plate, the protective mechanism is arranged on both sides of the fixing part, an alarm is fixedly installed on the top surface of one of the supports, an exhaust fan is fixedly installed on the top surface of the base, and the input end of the exhaust fan is connected with the protective mechanism through a pipeline.

[0008] Furthermore, the locking mechanism includes a connecting ring fixedly connected to the side wall of the support, an annular groove is provided on the inner ring side wall of the connecting ring, a first brake and a second brake are slidably connected inside the annular groove, the side walls of the first brake and the second brake are elastically connected to the inner cavity side walls of the annular groove through a plurality of first springs, and a plurality of electromagnets are equidistantly fixedly connected to the inner cavity side walls of the annular groove.

[0009] Furthermore, the coupling mechanism includes a fixed plate fixedly connected to the side wall of the rotating shaft, deflection holes are symmetrically opened on the side wall of the fixed plate, a plurality of extension rods are equidistantly fixedly connected to the outer wall of one side of the fixed plate, a friction plate is commonly fixedly connected to one end of the plurality of extension rods away from the fixed plate, the friction plate is arranged inside the annular groove and is located between the first brake and the second brake, and a first coupling assembly is symmetrically penetrated and slidably connected to the side wall of the fixed plate.

[0010] Furthermore, a plurality of sliding rods are fixedly connected to the outer wall of the second brake on a side away from the first brake, and the plurality of sliding rods respectively penetrate the inner circles of the plurality of first springs, and one end of the plurality of sliding rods located outside the connecting ring is commonly fixedly connected to a push plate, and a magnetic ring is fixedly connected to the outer circle side wall of the push plate.

[0011] Furthermore, a slide groove is provided on the outer wall of the connecting ring, and the slide groove is an annular structure; The detection mechanism includes a plurality of sliders slidably connected inside the slide groove, a suction block is fixedly connected to the side wall of each of the sliders, a detection ring is commonly fixedly connected to the side walls of the plurality of sliders, a deflection groove is symmetrically opened on the side wall of the detection ring, a pressure sensor is symmetrically fixedly connected to the inner cavity side wall of each of the deflection grooves, a second spring is fixedly connected to the measuring end of each of the pressure sensors, one end of each of the second springs is fixedly connected to abutment plate, a deflection rod is fixedly connected to the position of the deflection hole on the side wall of the detection ring corresponding to the deflection hole, one end of each of the deflection rods is fixedly connected to a positioning connection block after passing through the deflection hole, each of the positioning connection blocks is fixedly connected to the top surface of the welding plate, and a second connecting assembly is symmetrically fixedly installed on the outer wall of the detection ring close to the push plate.

[0012] Furthermore, the second connecting assembly includes a fixing frame fixedly connected to the outer wall of the detection ring close to the push plate, a second connecting rod is slidably connected through the side wall of the fixing frame, the second connecting rod and the side wall of the detection ring are slidably arranged through the second connecting rod, a second limit plate is fixedly connected to the side wall of the second connecting rod, the second limit plate and the side wall of the detection ring are elastically connected through a third spring, and the second connecting rod passes through the inner circle of the third spring.

[0013] Further, the first connecting assembly includes a first connecting rod that is slidably connected to the side wall of the fixed disk, one end of the first connecting rod is provided with a first plug-in slot, the end of the first connecting rod with the first plug-in slot is arranged between two abutment plates, a first limiting plate is fixedly connected to the side wall of the first connecting rod, the first limiting plate is elastically connected to the side wall of the fixed disk through a fourth spring, and the first connecting rod runs through the inner circle of the fourth spring.

[0014] Furthermore, the first connecting rod and the side wall of the deflection frame are slidably arranged to penetrate each other, and a second plug-in groove is provided on the side wall of the welding plate at a position corresponding to the first connecting rod.

[0015] Furthermore, the protective mechanism includes electric telescopic rods respectively fixedly connected to the side walls of the two positioning and connecting blocks, the movable end of each electric telescopic rod is fixedly connected to a connecting plate, the side wall of the connecting plate is fixedly connected to a protective shell, the side wall of the protective shell is provided with a through hole, and the electric telescopic rod passes through the through hole.

[0016] Furthermore, each of the side walls of the protective shells is penetrated and fixedly connected with an air suction head, and each of the air suction heads is connected to the inlet and outlet of the exhaust fan through a pipe. The protective shell is a hollow structure and is made of anti-welding material. A plurality of compression pistons are fixedly connected to the adjacent side walls of the two protective shells.

[0017] Compared with the prior art, the present invention has the following beneficial effects: By setting a locking mechanism and a detection mechanism, the rotating shaft is locked after rotating to a suitable welding position, and the welding plate is kept in position through the deflection rod and the positioning connecting block, so as to avoid the wear of the friction plate after long-term use, and the locking effect of the first brake and the second brake on the rotating shaft is reduced, resulting in the rotating shaft still driving the welding plate to deflect to a certain extent, causing the welding position of the workpiece to shift; by setting a detection mechanism and an alarm, when the fixed plate is deflected, the first connecting rod presses the plate and compresses the second spring, and when the pressure sensor connected to one end of the second spring detects the extrusion beyond the error range, the alarm is activated to give an alarm prompt; by setting a protective mechanism, the smoke and dust gas generated by welding can be sucked into the suction head and exported for processing. When it is detected that the wear of the locking mechanism causes inaccurate positioning of the workpiece, the workpiece is protected to prevent the external welding head from stopping in time, resulting in welding dislocation and causing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection between the locking mechanism and the scale plate on the support in the present invention; Figure 3 It is a connection diagram of the motor, the rotating shaft, the deflection frame and the welding plate in the present invention; Figure 4 It is a connection diagram of the locking mechanism, the detection mechanism and the coupling mechanism in the present invention; Figure 5 It is a cross-sectional structural schematic diagram of the locking mechanism and the connecting mechanism in the present invention; Figure 6 It is a structural schematic diagram of the connection mechanism part in the present invention; Figure 7 It is a structural schematic diagram of the second brake and the push plate part in the locking mechanism of the present invention; Figure 8 It is a structural schematic diagram of the detection mechanism part of the present invention; Fig. 9 It is a cross-sectional structural schematic diagram of the locking mechanism and the detection mechanism in the present invention; Fig.10 for Fig. 9 A magnified schematic diagram of the structure of part A; Fig.11 It is a structural schematic diagram of the second connecting component part in the detection mechanism of the present invention; Fig.12 It is a cross-sectional structural schematic diagram of the detection mechanism and the connection mechanism in the present invention; Fig.13 It is a structural schematic diagram of the first connecting component part in the connecting mechanism of the present invention; Fig.14It is a cross-sectional schematic diagram of the protection mechanism in the present invention from the top perspective; Fig.15 It is a structural schematic diagram of the bottom perspective of the protective shell in the protective mechanism of the present invention.

[0019] In the figure: 1, base; 2, support; 3, rotating shaft; 4, deflection frame; 5, welding plate; 51, second plug-in slot; 6, fixing piece; 7, motor; 8, locking mechanism; 81, connecting ring; 811, annular groove; 812, sliding groove; 82, first brake; 83, second brake; 84, first spring; 85, electromagnet; 86, sliding rod; 87, push plate; 871, magnetic ring; 9, detection mechanism; 91, slider; 911, suction block; 92, detection ring; 921, deflection slot; 93, pressure sensor; 94, second spring; 95, abutment plate; 96, deflection rod; 97, positioning connection block; 98, second connecting assembly; 981. fixed frame; 982. second connecting rod; 983. second limiting plate; 984. third spring; 10. connecting mechanism; 101. fixed plate; 1011. deflection hole; 102. extension rod; 103. friction plate; 104. first connecting assembly; 1041. first connecting rod; 1042. first plug-in slot; 1043. first limiting plate; 1044. fourth spring; 20. protective mechanism; 201. electric telescopic rod; 202. connecting plate; 203. protective shell; 2031. through hole; 204. suction head; 205. compression piston; 30. alarm; 40. scale plate; 50. exhaust fan. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In order to solve the technical problem that the friction disc of the electromagnetic brake is worn out after long-term use, which easily causes the clamping frame to deflect after rotating to the processing position, such as Figure 1-Figure 10 As shown, the following preferred technical solutions are provided: A welding positioner flipping device comprises a base 1 and two supports 2 symmetrically fixedly connected to the top surface of the base 1, a rotating shaft 3 is rotatably connected to the side walls of the two supports 2, a deflection frame 4 is fixedly connected to the side wall of the rotating shaft 3, a welding plate 5 is rotatably connected to the side wall of the rotating shaft 3, the welding plate 5 is arranged in the inner circle of the deflection frame 4, a fixing part 6 is fixedly connected to the top surface of the welding plate 5, a motor 7 is fixedly connected to the outer wall of one of the supports 2, the output shaft of the motor 7 is fixedly connected to one end of the rotating shaft 3, a locking mechanism 8 and a scale plate 40 are fixedly connected to the side wall of each support 2, the setting of the scale plate 40 facilitates obtaining the rotation angle information of the rotating shaft 3, a detection mechanism 9 is rotatably connected to the outer wall of the locking mechanism 8, one end of the detection mechanism 9 is fixedly connected to the welding plate 5, the detection mechanism 9 is used to detect the wear of the locking mechanism 8 and maintain the positioning of the welding plate 5, a coupling mechanism 10 is symmetrically fixedly connected to the side wall of the rotating shaft 3, and the two coupling mechanisms 10 One end is fixedly connected to the side wall of the deflection frame 4. The setting of the coupling mechanism 10 enables the deflection frame 4 to be associated with the welding plate 5, and enables the locking mechanism 8 to be associated with the rotating shaft 3, which is used to lock the rotating shaft 3 after the deflection frame 4 and the welding plate 5 are rotated into place, so that the coupling mechanism 10 is associated with the detection mechanism 9, which is used to detect the deflection amount of the rotating shaft 3 after positioning. The locking mechanism 8, the detection mechanism 9 and the coupling mechanism 10 are all coaxially arranged with the rotating shaft 3. A protective mechanism 20 is slidably arranged on the top surface of the welding plate 5. The protective mechanism 20 is arranged on both sides of the fixing member 6, and is used to protect the workpiece when the rotating shaft 3 still deflects after positioning. An alarm 30 is fixedly installed on the top surface of one of the supports 2, which is used to give an alarm reminder when the detection mechanism 9 detects that the rotating shaft 3 still deflects after positioning. An exhaust fan 50 is fixedly installed on the top surface of the base 1, and the input end of the exhaust fan 50 is connected with the protective mechanism 20 through a pipeline, which is used to absorb smoke gas during welding.

[0022] When in use, the workpiece to be welded is mounted on the fixing member 6 for welding. When flipping and shifting, the motor 7 drives the rotating shaft 3 to rotate. Under the action of the coupling mechanism 10, the deflection frame 4, the welding plate 5, the coupling mechanism 10 and the detection mechanism 9 rotate synchronously to achieve the purpose of adjusting the welding angle of the workpiece. After rotating to a suitable angle, the motor 7 is turned off and the rotating shaft 3 stops rotating. At this time, the locking mechanism 8 locks the coupling mechanism 10. Since the coupling mechanism 10 is fixedly connected to the outer wall of the rotating shaft 3, the purpose of locking the rotating shaft 3 can be achieved, so that the device can be positioned at any position within the rotation range. When the locking mechanism 8 is worn after long-term use, the locking effect of the locking mechanism 8 on the coupling mechanism 10 becomes worse, and the rotating shaft 3 still produces a certain deflection after rotating to a predetermined angle. At this time, the deflection frame 4 is disconnected from the welding plate 5, and the rotation of the detection mechanism 9 on the outer wall of the locking mechanism 8 is limited. When the rotating shaft 3 deflects, it only drives the deflection frame 4 and the coupling mechanism 10 to rotate. Due to the fixation of the detection mechanism 9, the welding plate 5 can remain positioned, so that the workpiece is accurately positioned.

[0023] During the welding process, the exhaust fan 50 absorbs the smoke gas generated by welding and discharges it for treatment. When the connecting mechanism 10 and the detection mechanism 9 are relatively deflected, the alarm 30 is triggered, so that the wear of the locking mechanism 8 can be detected in time, reminding the staff to inspect and replace the locking mechanism 8 in time. At the same time, the protection mechanism 20 is started to protect the workpiece on the fixing part 6 to prevent the external welding equipment from not stopping in time and the welding position on the workpiece from being inaccurate, resulting in damage to the workpiece and causing losses.

[0024] The locking mechanism 8 includes a connecting ring 81 fixedly connected to the side wall of the support 2, and an annular groove 811 is provided on the inner ring side wall of the connecting ring 81. The first brake 82 and the second brake 83 are slidably connected inside the annular groove 811. The side walls of the first brake 82 and the second brake 83 are elastically connected to the inner cavity side wall of the annular groove 811 through a plurality of first springs 84. A plurality of electromagnets 85 are equidistantly fixedly connected to the inner cavity side wall of the annular groove 811. When the electromagnet 85 is energized, the first brake 82 and the second brake 83 move to both sides respectively under the action of magnetic attraction. When the electromagnet 85 is de-energized, the first brake 82 and the second brake 83 approach each other under the elastic force of the first spring 84.

[0025] The coupling mechanism 10 includes a fixed disk 101 fixedly connected to the side wall of the rotating shaft 3, and a deflection hole 1011 is symmetrically opened on the side wall of the fixed disk 101. A plurality of extension rods 102 are fixedly connected to the outer wall of one side of the fixed disk 101 at equal intervals, and a friction disk 103 is fixedly connected to one end of the plurality of extension rods 102 away from the fixed disk 101. The friction disk 103 is arranged inside the annular groove 811 and is located between the first brake 82 and the second brake 83. When the electromagnet 85 is powered off, the first brake 82 and the second brake 83 are tightly pressed against the friction disk 103 under the action of the elastic force of the first spring 84, thereby locking the fixed disk 101 and further locking the rotating shaft 3. A first coupling assembly 104 is symmetrically penetrated and slidably connected to the side wall of the fixed disk 101.

[0026] A plurality of slide bars 86 are fixedly connected to the outer wall of the second brake 83 on the side away from the first brake 82. The plurality of slide bars 86 respectively penetrate the inner circles of the plurality of first springs 84. One end of the plurality of slide bars 86 located outside the connecting ring 81 is commonly fixedly connected to a push plate 87. A magnetic ring 871 is fixedly connected to the outer side wall of the push plate 87. When the electromagnet 85 is energized, the second brake 83 is attracted by the electromagnet 85, thereby driving the slide bars 86 to slide outward, thereby causing the push plate 87 to move away from the connecting ring 81. When the electromagnet 85 is de-energized, the push plate 87 is reset along with the second brake 83.

[0027] A sliding groove 812 is formed on the outer wall of the connecting ring 81 , and the sliding groove 812 is an annular structure.

[0028] The detection mechanism 9 includes a plurality of sliders 91 slidably connected inside the slide groove 812, and a suction block 911 is fixedly connected to the side wall of each slider 91. Initially, the magnetic ring 871 on the outer ring of the push plate 87 attracts the suction block 911 on the side wall of the slider 91, thereby limiting the sliding of the slider 91. A detection ring 92 is commonly fixedly connected to the side walls of the plurality of sliders 91, and a deflection rod 96 is fixedly connected to the side wall of the detection ring 92 at a position corresponding to the deflection hole 1011. One end of each deflection rod 96 passes through the deflection hole 1011 and is fixedly connected to a positioning connection block 97, and each positioning connection block 97 is fixedly connected to the top surface of the welding plate 5.

[0029] Specifically, when welding displacement is required, the electromagnet 85 is energized, and the first brake 82 and the second brake 83 move away from each other under the attraction of the electromagnets 85 on both sides, disengage from the friction plate 103 and abut against each other, thereby releasing the lock on the fixed disk 101 and further releasing the lock on the rotating shaft 3. At this time, the motor 7 can drive the rotating shaft 3 to rotate. When the first brake 82 and the second brake 83 move away from each other, the second brake 83 drives the plurality of slide bars 86 to slide toward the outside of the connecting ring 81, thereby driving the push plate 87 connected to one end of the plurality of slide bars 86 to move, so that the magnetic ring 871 on the outer ring of the push plate 87 is dislocated from the suction block 911 on the side wall of the slider 91, thereby releasing the limit on the slider 91. At this time, the detection ring 92 can rotate on the outer wall of the connecting ring 81; when the workpiece is adjusted to a suitable angle After the degree, the motor 7 is turned off and the electromagnet 85 is powered off. At this time, the first brake 82 and the second brake 83 are reset close to each other under the elastic force of the first spring 84, and are tightly against the friction disk 103 again to lock the rotating shaft 3. When the second brake 83 moves and resets, it drives the push plate 87 to reset, so that the magnetic ring 871 on the outer ring of the push plate 87 and the suction block 911 on the side wall of the slider 91 are aligned and attracted again, limiting the rotation of the detection ring 92, and further through the deflection rod 96 and the positioning connection block 97, the welding plate 5 is kept in position to avoid wear of the friction disk 103 after long-term use. The locking effect of the first brake 82 and the second brake 83 on the rotating shaft 3 is reduced, resulting in the rotating shaft 3 still driving the welding plate 5 to deflect to a certain extent, causing the welding position of the workpiece to shift.

[0030] In order to solve the technical problem that the friction disc of the electromagnetic brake is set inside the servo motor and is often not discovered by the staff in time after wear, such as Figure 3 , Figure 8-Figure 13 As shown, the following preferred technical solutions are provided: Deflection grooves 921 are symmetrically provided on the side wall of the detection ring 92, and a pressure sensor 93 is symmetrically fixedly connected to the inner cavity side wall of each deflection groove 921. A second spring 94 is fixedly connected to the measuring end of each pressure sensor 93, and one end of each second spring 94 is fixedly connected to a support plate 95. A second connecting assembly 98 is symmetrically fixedly installed on the outer wall of the detection ring 92 close to the push plate 87.

[0031] The second connecting assembly 98 includes a fixing frame 981 fixedly connected to the outer wall of the detection ring 92 close to the push plate 87, a second connecting rod 982 is slidably connected to the side wall of the fixing frame 981, the second connecting rod 982 and the side wall of the detection ring 92 are slidably arranged, a second limiting plate 983 is fixedly connected to the side wall of the second connecting rod 982, the second limiting plate 983 and the side wall of the detection ring 92 are elastically connected by a third spring 984, and the second connecting rod 982 passes through the inner circle of the third spring 984.

[0032] The first connecting assembly 104 includes a first connecting rod 1041 that is slidably connected to the side wall of the fixed disk 101, one end of the first connecting rod 1041 is provided with a first plug-in slot 1042, and the end of the first connecting rod 1041 provided with the first plug-in slot 1042 is arranged between the two abutment plates 95, and a first limiting plate 1043 is fixedly connected to the side wall of the first connecting rod 1041, and the first limiting plate 1043 is elastically connected to the side wall of the fixed disk 101 through a fourth spring 1044, and the first connecting rod 1041 runs through the inner circle of the fourth spring 1044.

[0033] The first connecting rod 1041 is slidably arranged to penetrate the side wall of the deflection frame 4 , and a second inserting groove 51 is formed on the side wall of the welding plate 5 at a position corresponding to the first connecting rod 1041 .

[0034] Specifically, when the electromagnet 85 is energized and the push plate 87 moves under the drive of the second brake 83, the push plate 87 abuts against the second connecting rod 982 and pushes the second connecting rod 982 to be inserted into the first insertion slot 1042 of the first connecting rod 1041, so that the detection ring 92 is connected to the fixed disk 101 as a whole. When the fixed disk 101 rotates, the first connecting rod 1041 and the second connecting rod 982 act to drive the detection ring 92 to rotate synchronously. At this time, the first connecting rod 1041 will not squeeze the abutting plate 95. After insertion, the second connecting rod 982 continues to push the first connecting rod 1041 for a distance, so that the other end of the first connecting rod 1041 passes through the deflection frame 4 and is inserted into the second insertion slot 51, so that the welding plate 5 is connected to the deflection frame 4 as a whole and rotates synchronously; when the electromagnet 85 is deenergized, the push plate 87 abuts against the second connecting rod 982 and is pushed into the first insertion slot 51 by the second holding brake 83. During the downward reset, the second connecting rod 982 is reset under the action of the third spring 984 and separated from the first connecting rod 1041. The first connecting rod 1041 is reset under the action of the fourth spring 1044, and the other end thereof is disengaged from the second plug-in slot 51 and retracted to the outside of the deflection frame 4. At this time, if the locking mechanism 8 is worn and the rotating shaft 3 still deflects after the motor 7 is turned off, the fixed disk 101 will be synchronously deflected under the drive of the rotating shaft 3. At this time, since the integral body formed by the fixed disk 101 and the detection ring 92 and the integral body formed by the deflection frame 4 and the welding plate 5 are separated, and the detection ring 92 is limited and cannot rotate, when the fixed disk 101 deflects, the first connecting rod 1041 presses the plate 95 and compresses the second spring 94. When the pressure sensor 93 connected to one end of the second spring 94 detects the extrusion beyond the error range, the alarm 30 is activated to issue an alarm prompt.

[0035] In order to solve the technical problem that when the welding position of the workpiece is inaccurate, it is impossible to protect it in time, which easily causes the scrapping of batches of workpieces and causes losses, such as Figure 14-15 As shown, the following preferred technical solutions are provided: The protective mechanism 20 includes electric telescopic rods 201 respectively fixedly connected to the side walls of the two positioning and connecting blocks 97, and the movable end of each electric telescopic rod 201 is fixedly connected to a connecting plate 202, and a protective shell 203 is fixedly connected to the side wall of the connecting plate 202. A through hole 2031 is opened on the side wall of the protective shell 203, and the electric telescopic rod 201 penetrates the through hole 2031.

[0036] A suction head 204 is fixedly connected to the side wall of each protective shell 203, and each suction head 204 is connected to the inlet and outlet of the exhaust fan 50 through a pipeline. The protective shell 203 is a hollow structure and is made of anti-welding material. A plurality of compression pistons 205 are fixedly connected to the adjacent side walls of the two protective shells 203.

[0037] Specifically, during the welding process, the exhaust fan 50 is used to allow the smoke and dust gases generated by the welding to be sucked into the suction head 204 and discharged for processing; when it is detected that the wear of the locking mechanism 8 causes inaccurate positioning of the workpiece, the electric telescopic rod 201 drives the two protective shells 203 to move closer to each other and close together to protect the workpiece and prevent the external welding head from stopping in time and causing welding dislocation and losses. The two protective shells 203 are made of anti-welding material. When they are close to each other, the compression pistons 205 of the two protective shells 203 squeeze each other, causing the protective shells 203 to expand to a certain extent, thereby reducing the collision impact with the external welding head.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding positioner turning device, comprising a base (1) and two supports (2) symmetrically fixedly connected to the top surface of the base (1), characterized in that: A rotating shaft (3) is rotatably connected to the side walls of the two supports (2), a deflection frame (4) is fixedly connected to the side wall of the rotating shaft (3), a welding plate (5) is rotatably connected to the side wall of the rotating shaft (3), the welding plate (5) is arranged in the inner ring of the deflection frame (4), a fixing member (6) is fixedly connected to the top surface of the welding plate (5), a motor (7) is fixedly connected to the outer wall of one of the supports (2), an output shaft of the motor (7) is fixedly connected to one end of the rotating shaft (3), a locking mechanism (8) and a scale plate (40) are fixedly connected to the side wall of each support (2), a detection mechanism (9) is rotatably connected to the outer wall of the locking mechanism (8), one end of the detection mechanism (9) is fixedly connected to the outer wall of the locking mechanism (8), and one end of the detection mechanism (9) is fixedly connected to the outer wall of the locking mechanism (8). The ends of the rotating shaft (3) are fixedly connected to the welding plate (5); a coupling mechanism (10) is symmetrically fixedly connected to the side wall of the rotating shaft (3); one end of each of the two coupling mechanisms (10) is fixedly connected to the side wall of the deflection frame (4); the locking mechanism (8), the detection mechanism (9) and the coupling mechanism (10) are coaxially arranged with the rotating shaft (3); a protective mechanism (20) is slidably arranged on the top surface of the welding plate (5); the protective mechanism (20) is arranged on both sides of the fixing member (6); an alarm (30) is fixedly mounted on the top surface of one of the supports (2); an exhaust fan (50) is fixedly mounted on the top surface of the base (1); and an input end of the exhaust fan (50) is connected to the protective mechanism (20) through a pipeline.

2. A welding positioner flipping device according to claim 1, characterized in that: The locking mechanism (8) comprises a connecting ring (81) fixedly connected to the side wall of the support (2); an annular groove (811) is provided on the inner ring side wall of the connecting ring (81); a first brake (82) and a second brake (83) are slidably connected inside the annular groove (811); the side walls of the first brake (82) and the second brake (83) are elastically connected to the inner cavity side wall of the annular groove (811) via a plurality of first springs (84); and a plurality of electromagnets (85) are equidistantly fixedly connected to the inner cavity side wall of the annular groove (811).

3. A welding positioner flipping device according to claim 2, characterized in that: The coupling mechanism (10) comprises a fixed plate (101) fixedly connected to the side wall of the rotating shaft (3); the side wall of the fixed plate (101) is symmetrically provided with deflection holes (1011); a plurality of extension rods (102) are fixedly connected to an outer wall of one side of the fixed plate (101) at equal intervals; a friction plate (103) is fixedly connected to one end of the plurality of extension rods (102) away from the fixed plate (101); the friction plate (103) is arranged inside the annular groove (811) and is located between the first brake (82) and the second brake (83); and a first coupling assembly (104) is symmetrically penetrated and slidably connected to the side wall of the fixed plate (101).

4. A welding positioner turning device according to claim 3, characterized in that: A plurality of slide bars (86) are fixedly connected to an outer wall of a side of the second brake (83) away from the first brake (82), and the plurality of slide bars (86) respectively penetrate the inner rings of the plurality of first springs (84). One end of the plurality of slide bars (86) located outside the connecting ring (81) is commonly fixedly connected to a push plate (87), and a magnetic ring (871) is fixedly connected to the outer ring side wall of the push plate (87).

5. A welding positioner turning device according to claim 4, characterized in that: A sliding groove (812) is provided on the outer wall of the connecting ring (81), and the sliding groove (812) is an annular structure; The detection mechanism (9) comprises a plurality of sliders (91) slidably connected inside the slide groove (812), a suction block (911) being fixedly connected to the side wall of each slider (91), a detection ring (92) being fixedly connected to the side walls of the plurality of sliders (91), a deflection groove (921) being symmetrically provided on the side wall of the detection ring (92), a pressure sensor (93) being symmetrically fixedly connected to the inner cavity side wall of each deflection groove (921), and a second spring (93) being fixedly connected to the measuring end of each pressure sensor (93). 4), one end of each of the second springs (94) is fixedly connected to a stop plate (95), a deflection rod (96) is fixedly connected to a position corresponding to the deflection hole (1011) on the side wall of the detection ring (92), one end of each of the deflection rods (96) is fixedly connected to a positioning connection block (97) after passing through the deflection hole (1011), each of the positioning connection blocks (97) is fixedly connected to the top surface of the welding plate (5), and a second connecting assembly (98) is symmetrically fixedly installed on the outer wall of the detection ring (92) on the side close to the push plate (87).

6. A welding positioner turning device according to claim 5, characterized in that: The second connecting assembly (98) comprises a fixing frame (981) fixedly connected to the outer wall of the detection ring (92) close to the push plate (87); a second connecting rod (982) is slidably connected to the side wall of the fixing frame (981); the second connecting rod (982) and the side wall of the detection ring (92) are slidably connected to each other; a second limiting plate (983) is fixedly connected to the side wall of the second connecting rod (982); the second limiting plate (983) and the side wall of the detection ring (92) are elastically connected via a third spring (984); and the second connecting rod (982) is inserted into the inner circle of the third spring (984).

7. The welding positioner turning device according to claim 5 is characterized in that: The first connecting assembly (104) comprises a first connecting rod (1041) which penetrates and is slidably connected to the side wall of the fixed disk (101); a first plugging slot (1042) is provided at one end of the first connecting rod (1041); the end of the first connecting rod (1041) which is provided with the first plugging slot (1042) is arranged between two abutment plates (95); a first limiting plate (1043) is fixedly connected to the side wall of the first connecting rod (1041); the first limiting plate (1043) is elastically connected to the side wall of the fixed disk (101) via a fourth spring (1044); and the first connecting rod (1041) penetrates the inner circle of the fourth spring (1044).

8. A welding positioner flipping device according to claim 7, characterized in that: The first connecting rod (1041) and the side wall of the deflection frame (4) are slidably arranged to penetrate each other, and a second insertion groove (51) is provided on the side wall of the welding plate (5) at a position corresponding to the first connecting rod (1041).

9. A welding positioner turning device according to claim 5, characterized in that: The protective mechanism (20) comprises electric telescopic rods (201) respectively fixedly connected to the side walls of two positioning connection blocks (97); the movable end of each electric telescopic rod (201) is fixedly connected to a connection plate (202); a protective shell (203) is fixedly connected to the side wall of the connection plate (202); a through hole (2031) is formed on the side wall of the protective shell (203); and the electric telescopic rod (201) is inserted through the through hole (2031).

10. A welding positioner turning device according to claim 9, characterized in that: An air suction head (204) is fixedly connected to the side wall of each protective shell (203), and each air suction head (204) is connected to the inlet and outlet of the exhaust fan (50) through a pipeline. The protective shell (203) is a hollow structure and is made of anti-welding material. A plurality of compression pistons (205) are fixedly connected to the adjacent side walls of two protective shells (203).

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