Welding positioning device

Abstract

The invention belongs to the technical field of welding positioning, and discloses a welding positioning device which comprises a supporting sleeve and an auxiliary welding part, a rotation control part is rotationally arranged in the supporting sleeve, a clamping arm is fixed to the front face of the rotation control part in a surrounding mode, and a feeding assembly is arranged at the top of the supporting sleeve. According to the invention, by realizing positioning and rotation control of the sleeved metal outer ring and matching with a feeding frame for top lifting control, continuous feeding is realized, the welding position of the metal outer ring is continuously switched when the metal outer ring is driven to rotate intermittently and equidistantly, and the metal outer ring is matched with an automatically falling tool bit, and is matched with a side elastic positioning part after the bottom tool bit is preliminarily welded, so that the metal outer ring is continuously welded. When the elastic positioning part is pushed away, automatic positioning and preliminary welding of the other set of tool bits are rapidly switched, the continuous welding efficiency is high, the effect is good, repeated positioning is not needed, switching positioning of the metal outer ring and the multiple sets of tool bits is rapidly achieved, the actual welding efficiency is greatly improved, and the using effect is good.

Description

Technical Field

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

[0002] A thickness gauge wheel, especially in the field of ceramic processing, refers to a key component used in a ceramic tile scraping and thickness gauge machine. Its main function is to scrape the uneven parts of the ceramic tile surface and give the ceramic tile an accurate thickness. The thickness gauge wheel is composed of a metal outer ring and a single set of knife rings formed by a knife head welded around the outer side, and a center sleeve, which are stacked together.

[0003] The welding positioning device in the prior art usually adopts a clamping mechanism to clamp the metal outer ring and the cutter head respectively during the welding process of the metal outer ring and the cutter head of the thickness-setting wheel, and welds them after clamping. On the one hand, since a large number of cutter heads need to be welded on the outside of the metal outer ring, it is necessary to frequently rotate and adjust the clamping position of the metal outer ring, and constantly replace the cutter heads to be welded. The comprehensive positioning welding operation is relatively cumbersome, and the welding efficiency after positioning is low. It is necessary to repeatedly perform independent clamping and positioning operations. In addition, the welding deformation of the cutter head during the welding process is relatively complex and is distributed on four different cross-sectional edge lines of the upper, lower, left and right of the cutter head. The welding difficulty of the welding tool after actual positioning is relatively high. At present, the welding operation after positioning is difficult, and it is difficult to achieve quick and effective welding operation, and the comprehensive welding positioning effect is not good. Summary of the invention

[0004] The object of the present invention is to provide a welding positioning device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding positioning device, comprising a support sleeve and an auxiliary welding part, wherein a rotation control part is provided inside the support sleeve for rotation, a clamping arm is fixed around the front of the rotation control part, a loading assembly is provided on the top of the support sleeve, swing-type welding assemblies are symmetrically provided on both sides of the loading assembly, a power mechanism 2 is provided on both sides of the loading assembly, and the power mechanism 2 drives the swing-type welding assembly to swing back and forth, an elastic positioning part is provided below the side of the loading assembly, and the auxiliary welding part is located at the outer side of the clamping arm at a horizontal position,

[0006] The elastic positioning part includes a baffle, a fixed shaft and a torsion spring.

[0007] The swing type welding assembly comprises an arc frame, an arc rack, a swing arm, an intermediate rod and a laser welding part.

[0008] Preferably, a power mechanism 1 is provided on the outer side of the support sleeve, and the power mechanism 1 includes a control motor 1 and a gear 2, and the control motor 1 drives the meshing rotation control part to rotate intermittently through the gear 2, and the power mechanism 2 includes a control motor 2 and a gear 3, and the control motor 2 drives the meshing arc-shaped rack to rotate reciprocatingly through the gear 3.

[0009] Preferably, the rotation control part includes a rotating plate, a fixed shaft, a gear 1, a connecting arc groove and a middle opening. The fixed shaft rotates through the support sleeve and is fixedly connected to the rotating plate. The gear 1 is fixedly sleeved on the outer surface of the fixed shaft. A retaining ring is provided on the outer side of the rotating plate. The rotating plate is rotatably sleeved inside the support sleeve through the retaining ring. The connecting arc groove is provided on the outer surface of the rotating plate. The middle opening is provided on the front side of the rotating plate and is connected with the connecting arc groove. The connecting arc groove corresponds to and is connected with the clamping arm one by one. An air supply part is fixedly provided on the front side of the support sleeve. The air supply part inputs pressurized air to the connecting arc groove through the opening.

[0010] Preferably, the clamping arm includes a clamping arm body, a top opening, a limit block, a clamping plate, a spring 1 and a connecting groove, the clamping arm body is fixed on the front side of the rotating plate, the top opening is opened at the top of the clamping arm body, the connecting groove is opened inside the clamping arm body, the two ends of the connecting groove are respectively connected with the top opening and the connecting arc groove, the limit block is fixed at the top of the clamping arm body, the clamping plate is movably sleeved in the top opening, one end of the spring 1 is fixed in the top opening, and the other end is fixedly connected to the clamping plate.

[0011] Preferably, the loading assembly includes a loading frame, an electric push rod, a cross bar, a side groove and an assembly groove, the electric push rod is fixed on the top of the support sleeve, one end of the cross bar is fixedly connected to the movable end of the electric push rod, and the other end is fixedly connected to the loading frame, the side groove is opened at the bottom of the side of the loading frame, the assembly groove is opened above the side groove, and the side groove is connected to the inside of the loading frame.

[0012] Preferably, the baffle is movably sleeved in the assembly groove to block the side groove, the fixed shaft is fixedly connected in the assembly groove, the baffle is rotatably sleeved on the outer surface of the fixed shaft, the torsion spring is sleeved on the outside of the fixed shaft, and the torsion spring is fixedly connected between the baffle and the loading frame.

[0013] Preferably, the arc frame is fixed on the outer side of the loading frame, the arc rack is movably sleeved in the arc frame, the swing arm is fixedly connected to the middle rod, the middle rod is fixedly connected to the front side of the arc rack, and the laser welding part is fixed to the bottom of the side of the swing arm.

[0014] Preferably, a grinding mechanism is provided on the side of the feeding frame, and the grinding mechanism includes a hydraulic push rod, a grinding block and an embedding groove, the embedding groove is opened at the bottom of the feeding frame, the hydraulic push rod is fixedly installed in the embedding groove, the grinding block is fixed on the movable end of the hydraulic push rod, and the movable end of the hydraulic push rod faces downward.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention realizes the positioning and rotation control of the metal outer ring after sleeve connection by utilizing the cooperation of the rotation control part and the clamping arm, and realizes continuous loading by cooperating with the feeding frame controlled by the top lifting and lowering. When driving the metal outer ring to rotate intermittently and equidistantly, the welding position of the metal outer ring is continuously switched, and cooperates with the automatically falling cutter head. After the bottom cutter head is initially welded, the side elastic positioning part is cooperated to quickly switch the automatic positioning and preliminary welding of another group of cutter heads after pushing away the elastic positioning part. For the welding of multiple groups of cutter heads in the thickness gauge wheel, the continuous welding efficiency is high and the effect is good, and there is no need for repeated positioning. The switching and positioning of the metal outer ring and multiple groups of cutter heads can be quickly realized, which greatly improves the actual welding efficiency and has a good use effect.

[0017] 2. The present invention utilizes an intermittently rotating metal outer ring and a cutter head that automatically moves down along a loading frame for positioning. After positioning, the power mechanism 2 drives the swing-type welding assembly to rotate and swing back and forth, and during the reciprocating rotation and swinging, the contact arc edge line between the cutter head and the metal outer ring is followed to achieve positioning welding after arc displacement, thereby achieving preliminary welding on the front and rear sides after the cutter head is positioned, quickly achieving local welding of the cutter head, and providing a tightening force for subsequent rotation and swinging after the cutter head is welded. When the cutter head rotates to the horizontal side, it cooperates with the external auxiliary welding part corresponding to the outside to complete the welding of the left and right side lines of the cutter head. The left and right side line welding and the front and rear welding of other cutter heads are performed simultaneously, thereby achieving quick rotation welding positioning and completing the double synchronous welding, which greatly speeds up the efficiency of local welding and forming of the thickness gauge wheel.

[0018] 3. The present invention utilizes the power mechanism again to drive the rotation of the rotation control part. After the cutter head of a single set of metal outer rings is completely welded, the rotation space of the cutter head is reserved by moving the loading frame upward, and the rotation control part is continuously and rapidly rotated after welding, so as to realize the rapid rotation of the cutter head and the metal outer ring after welding. The grinding mechanism on the front and rear sides of the loading frame is utilized again, and the grinding block that moves downward independently is cooperated to move the grinding block to the front and rear welding positions of the rotating cutter head. The static grinding block and the dynamic rotating cutter head are utilized to automatically grind the front and rear welding edges of the cutter head, so as to improve the quality after welding and achieve good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2It is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 is a cross-sectional schematic diagram of a rotation control portion of the present invention;

[0022] Figure 4 It is a schematic diagram of the connection between the feeding assembly and the swing welding assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the feeding frame of the present invention;

[0024] Figure 6 It is an exploded schematic diagram of the clamping arm of the present invention;

[0025] Figure 7 It is a schematic diagram of the engagement between the swing type welding assembly and the power mechanism 2 of the present invention;

[0026] Figure 8 is a schematic diagram of the elastic positioning portion of the present invention;

[0027] Fig. 9 Schematic diagram of a feeding assembly in Example 2 of the present invention;

[0028] Fig.10 This is a schematic diagram of the product after welding of the present invention.

[0029] In the figure: 1. support sleeve; 2. rotation control part; 21. rotating plate; 22. fixed shaft; 23. gear one; 24. connecting arc groove; 25. middle opening; 3. power mechanism one; 4. clamping arm; 41. clamping arm body; 42. top opening; 43. limit block; 44. clamping plate; 45. spring one; 46. connecting groove; 5. feeding assembly; 51. feeding frame; 52. electric push rod; 53. cross bar; 54. side groove; 55. assembly groove; 6. elastic positioning part; 61. baffle; 62. fixed shaft; 63. torsion spring; 7. swing welding assembly; 71. arc frame; 72. arc rack; 73. swing arm; 74. middle rod; 75. laser welding part; 8. power mechanism two; 9. hydraulic push rod; 10. air supply part; 11. grinding block; 12. embedding groove. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 10As shown, an embodiment of the present invention provides a welding positioning device, including a support sleeve 1 and an auxiliary welding part. A rotation control part 2 is provided inside the support sleeve 1 for rotation. A clamping arm 4 is fixed around the front of the rotation control part 2. A loading assembly 5 is provided on the top of the support sleeve 1. Swinging welding assemblies 7 are symmetrically provided on both sides of the loading assembly 5. Power mechanisms 8 are provided on both sides of the loading assembly 5. The power mechanisms 8 drive the swinging welding assembly 7 to swing back and forth. An elastic positioning part 6 is provided below the side of the loading assembly 5. The auxiliary welding part is located at the outer level of the clamping arm 4. The elastic positioning part 6 includes a baffle 61, a fixed shaft 62 and a torsion spring 63. The swinging welding assembly 7 includes an arc frame 71, an arc rack 72, a swing arm 73, an intermediate rod 74 and a laser welding part 75.

[0032] Embodiment 1: When in use, the metal outer ring to be welded is sleeved on the outer side of the three groups of clamping arms 4, and the metal outer ring is pushed to move so that it contacts the limit block 43 to complete the movement limit, and then the air supply part 10 is started to allow the pressurized air to enter the connecting arc groove 24 of the rotation control part 2 through the through port, and enter the interior of the three groups of clamping arms 4 through the middle port 25, and the pressurized air enters the top port 42 through the connecting groove 46, and pushes the clamping plate 44 upward to move, so that the metal is completely positioned and fixed on the outer side of the clamping arm 4, and multiple groups of cutter heads are put into the loading frame 51 in the loading assembly 5, so that the cutter heads are arranged in an upper and lower array in the loading frame 51, and the bottom cutter head falls on the outside of the metal outer ring positioned and clamped below through the loading frame 51 to complete the positioning, and the electric push rod 52 is started to lift the loading frame 51 upward to expose the contact edge line between the bottom cutter head and the metal outer ring, and at this time the laser welding part 75 faces the cutter head and the metal outer ring The contact edge line, and specifically the long edge lines on both sides, starts the power mechanism 2 8, drives the arc rack 72 to rotate, so that the swing welding assembly 7 starts to rotate in one direction, and starts the laser welding part 75, the laser welding part 75 moves along the above-mentioned contact edge line to complete the welding. After the front and rear sides of the cutter head are welded, the power mechanism 1 3 is started, and the rotation control part 2 is driven to rotate the angle. The initially welded cutter head rotates with the clamped metal outer ring, and pushes the elastic positioning part 6 to make the baffle 61 flip, the torsion spring 63 twists, and the initially welded cutter head is rotated out of the loading frame 51. Then, the rotation angle is controlled, and the cutter head in the loading frame 51 automatically falls and contacts the metal outer ring below. The initial welding of the corresponding cutter head is performed again. As the initially welded cutter head rotates to the horizontal side and aligns with the corresponding auxiliary welding mechanism, the external auxiliary welding assembly is started, and welding is performed toward the other two side lines of the cutter head to complete the comprehensive welding.

[0033] Firstly, by utilizing the cooperation of the rotation control part 2 and the clamping arm 4, the positioning and rotation control of the metal outer ring after the sleeve connection are realized, and the loading frame 51 controlled by the top lifting is cooperated to realize continuous loading. When driving the metal outer ring to rotate intermittently and equidistantly, the welding position of the metal outer ring is continuously switched, and cooperates with the automatically falling cutter head. After the preliminary welding of the bottom cutter head, the side elastic positioning part 6 is cooperated. After pushing away the elastic positioning part 6, the automatic positioning and preliminary welding of another group of cutter heads are quickly switched. For the welding of multiple groups of cutter heads in the thickness wheel, the continuous welding efficiency is high and the effect is good. There is no need for repeated positioning. The switching and positioning of the metal outer ring and multiple groups of cutter heads can be quickly realized, which greatly improves the actual welding efficiency and has a good use effect.

[0034] In addition, by utilizing the intermittently rotating metal outer ring and the cutter head that automatically moves down along the loading frame 51 for positioning, the swing-type welding assembly 7 is driven to rotate and swing back and forth through the power mechanism 2 8 after positioning, and during the reciprocating rotation and swinging, the positioning welding after the arc displacement is realized along the contact arc edge line between the cutter head and the metal outer ring, thereby realizing the preliminary welding of the front and rear sides after the cutter head is positioned, quickly realizing the local welding of the cutter head, and providing the tightening force after the cutter head welding for the subsequent rotation and swinging, and when the cutter head rotates to the horizontal side, it cooperates with the corresponding external auxiliary welding part on the outside to complete the welding of the left and right side lines of the cutter head, and the left and right side line welding and the front and rear welding of other cutter heads are carried out simultaneously, realizing the quick rotation welding positioning and completing it at the same time, and the double synchronous welding greatly speeds up the efficiency of the local welding and forming of the thickness wheel.

[0035] Among them, a power mechanism 3 is provided on the outside of the support sleeve 1, and the power mechanism 3 includes a control motor 1 and a gear 2. The control motor 1 drives the meshing rotation control part 2 to rotate intermittently through the gear 2. The power mechanism 2 8 includes a control motor 2 and a gear 3. The control motor 2 drives the meshing arc rack 72 to rotate reciprocatingly through the gear 3.

[0036] By utilizing the power mechanism 1 3 to provide rotational power and intermittent starting to realize intermittent rotation control, different welding angles can be switched to realize continuous welding of multiple sets of cutter heads. The power mechanism 2 8 provides swinging power, and the left and right swing of the swing welding assembly 7 is controlled by forward and reverse rotation to complete the arc welding trajectory of the welding edge line and improve the welding quality.

[0037] Among them, the rotation control part 2 includes a rotating plate 21, a fixed shaft 22, a gear 23, a connecting arc groove 24 and an intermediate port 25. The fixed shaft 22 rotates through the support sleeve 1 and is fixedly connected to the rotating plate 21. The gear 23 is fixedly sleeved on the outer surface of the fixed shaft 22. A retaining ring is provided on the outer side of the rotating plate 21. The rotating plate 21 is rotatably sleeved inside the support sleeve 1 through the retaining ring. The connecting arc groove 24 is opened on the outer surface of the rotating plate 21. The intermediate port 25 is opened on the front side of the rotating plate 21 and is connected with the connecting arc groove 24. The connecting arc groove 24 corresponds to and is connected with the clamping arm 4 one by one. An air supply part 10 is fixedly provided on the front side of the support sleeve 1. The air supply part 10 inputs pressurized air to the connecting arc groove 24 through the through port.

[0038] The rotation control part 2 is fixed by being connected to the clamping arm 4, controls the rotation of the clamping arm 4 in the rotating state, and realizes gas conduction during the rotation process by controlling the connecting arc groove 24, the air supply part 10 and the middle port 25, so that the pressurized air can be passed into the clamping arm 4, realize the movement of the clamping plate 44, and complete the clamping action. There is a gap between the rotating plate 21 and the supporting sleeve 1, and the gap is sealed by a retaining ring. The space formed by the gap ensures that the air supply part 10 can always guide the gas through the through middle port 25 to the clamping arm 4 when the rotating plate 21 rotates.

[0039] Among them, the clamping arm 4 includes a clamping arm body 41, a top opening 42, a limit block 43, a clamping plate 44, a spring 45 and a connecting groove 46. The clamping arm body 41 is fixed on the front side of the rotating plate 21, the top opening 42 is opened at the top of the clamping arm body 41, and the connecting groove 46 is opened inside the clamping arm body 41. The two ends of the connecting groove 46 are respectively connected with the top opening 42 and the connecting arc groove 24. The limit block 43 is fixed at the top of the clamping arm body 41, and the clamping plate 44 is movably sleeved in the top opening 42. One end of the spring 45 is fixed in the top opening 42, and the other end is fixedly connected to the clamping plate 44.

[0040] The input pressure air is guided into the top opening 42 through the connecting groove 46 to push the clamping plate 44, thereby completing the support, clamping and fixation of the outer metal outer ring.

[0041] Among them, the loading assembly 5 includes a loading frame 51, an electric push rod 52, a cross bar 53, a side groove 54 and an assembly groove 55. The electric push rod 52 is fixed to the top of the support sleeve 1, one end of the cross bar 53 is fixedly connected to the movable end of the electric push rod 52, and the other end is fixedly connected to the loading frame 51, the side groove 54 is opened at the bottom of the side of the loading frame 51, the assembly groove 55 is opened above the side groove 54, and the side groove 54 is connected to the inside of the loading frame 51.

[0042] The loading assembly 5 is filled with multiple groups of cutter heads to achieve sequential falling positioning, complete continuous positioning welding, and improve welding efficiency. The side grooves 54 and the assembly grooves 55 are used to adapt to the installation of the elastic positioning part 6, and after the loading frame 51 moves up, space is provided for the cutter heads to be rotated out of the loading frame 51. The electric push rod 52 controls the height position of the loading frame 51.

[0043] Among them, the baffle 61 is movably sleeved in the assembly groove 55, which blocks the side groove 54, the fixed shaft 62 is fixedly connected in the assembly groove 55, the baffle 61 is rotatably sleeved on the outer surface of the fixed shaft 62, the torsion spring 63 is sleeved on the outer side of the fixed shaft 62, and the torsion spring 63 is fixedly connected between the baffle 61 and the loading frame 51.

[0044] The elastic positioning part 6 is used to realize elastic positioning, thereby ensuring that the cutter head in the loading frame 51 will not slip out, and after preliminary welding, the baffle 61 can be pushed to swing and move out of the loading frame 51, and the torsion spring 63 ensures that the baffle 61 is quickly reset after rotation.

[0045] Among them, the arc frame 71 is fixed on the outer surface of the loading frame 51, the arc rack 72 is movably sleeved in the arc frame 71, the swing arm 73 is fixedly connected to the middle rod 74, the middle rod 74 is fixedly connected to the front of the arc rack 72, and the laser welding part 75 is fixed to the bottom of the side of the swing arm 73.

[0046] By utilizing the arc frame 71 to fit the arc rack 72 and utilizing the power mechanism 2 8 to drive the meshed arc rack 72 to rotate, the swing control of the laser welding part 75 is achieved and different welding positions are switched.

[0047] Among them, a grinding mechanism is provided on the side of the loading frame 51, and the grinding mechanism includes a hydraulic push rod 9, a grinding block 11 and an embedding groove 12. The embedding groove 12 is opened at the bottom of the loading frame 51, and the hydraulic push rod 9 is fixedly installed in the embedding groove 12. The grinding block 11 is fixed on the movable end of the hydraulic push rod 9, and the movable end of the hydraulic push rod 9 faces downward. The embedding groove 12 ensures that the internally sleeved grinding block 11 is in full contact with the outer welding surface of the cutter head when moving downward, thereby completing relative grinding.

[0048] Embodiment 2: When all the cutter heads of the metal outer ring are welded, the electric push rod 52 in the loading assembly 5 is started to move the loading frame 51 upward and to the outside of the welded cutter head. Then the hydraulic push rod 9 in the grinding mechanism is started to drive the grinding block 11 to move downward along the embedding groove 12 and move to the welding position of the cutter head. The power mechanism 3 is started to drive the rotation control part 2 to rotate and drive the welded metal outer ring and the cutter head to rotate. During the rotation, the grinding block 11 rubs against the welds on the front and rear sides of the cutter head to achieve friction grinding of the welding position.

[0049] First, by utilizing the power mechanism 3 again to drive the rotation of the rotation control part 2, after the cutter head of a single set of metal outer rings is completely welded, the rotation space of the cutter head is reserved by moving the loading frame 51 upward, and the rotation control part 2 is rotated continuously and rapidly after welding to realize the rapid rotation of the cutter head and the metal outer ring after welding. The grinding mechanism on the front and rear sides of the loading frame 51 is utilized again, and the grinding block 11 that moves downward independently is cooperated to move the grinding block to the front and rear welding positions of the rotating cutter head. The static grinding block 11 and the dynamic rotating cutter head are utilized to automatically grind the front and rear welding edges of the cutter head to improve the quality after welding, and the use effect is good.

[0050] The working principle and use process of the present invention are as follows: the metal outer ring to be welded is sleeved on the outer side of the three groups of clamping arms 4, and the metal outer ring is pushed to move so as to contact with the limit block 43 to complete the movement limit, and then the air supply part 10 is started to allow the pressurized air to enter the connecting arc groove 24 of the rotation control part 2 through the opening, and enter the interior of the three groups of clamping arms 4 through the middle opening 25, and the pressurized air enters the top opening 42 through the connecting groove 46, and pushes the clamping plate 44 upward to move, so that the metal is completely positioned and fixed on the outer side of the clamping arm 4, and multiple groups of cutter heads are put into the loading frame 51 in the loading assembly 5, The cutter heads are arranged in an array in the loading frame 51, and the bottom cutter head passes through the loading frame 51 and falls on the outside of the metal outer ring positioned and clamped below, completing the positioning, starting the electric push rod 52, lifting the loading frame 51 upward, exposing the contact edge between the bottom cutter head and the metal outer ring, and at this time, the laser welding part 75 faces the contact edge between the cutter head and the metal outer ring, and specifically the long edge on both sides, starting the power mechanism 2 8, driving the arc rack 72 to rotate, so that the swing welding assembly 7 starts to rotate in one direction, and starting the laser welding part 75, the laser welding part 75 moves along the above-mentioned contact edge, completing the After the welding is completed on the front and rear sides of the cutter head, the power mechanism 3 is started, and the rotation control part 2 is driven to rotate. The initially welded cutter head rotates with the clamped metal outer ring and pushes the elastic positioning part 6, so that the baffle 61 flips, the torsion spring 63 twists, and the initially welded cutter head is rotated out of the loading frame 51. Then, the rotation angle is controlled, and the cutter head in the loading frame 51 automatically falls and contacts with the metal outer ring below. The initial welding of the corresponding cutter head is performed again. As the initially welded cutter head rotates to the horizontal side and aligns with the corresponding auxiliary welding mechanism, the external auxiliary welding assembly is started, and the other side of the cutter head is moved toward the The outer side lines are welded to complete the overall welding; when all the cutter heads of the metal outer ring are welded, the electric push rod 52 in the loading assembly 5 is started to move the loading frame 51 upward and to the outside of the welded cutter head, and then the hydraulic push rod 9 in the grinding mechanism is started to drive the grinding block 11 to move down along the embedded groove 12 and move to the welding part of the cutter head, and the power mechanism 3 is started to drive the rotation control part 2 to rotate, and drive the welded metal outer ring and the cutter head to rotate, and during the rotation process, the grinding block 11 rubs against the welds on the front and rear sides of the cutter head to achieve friction grinding of the welding part.

[0051] 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 positioning device, comprising a support sleeve (1) and an auxiliary welding portion, characterized in that: The support sleeve (1) is provided with a rotation control part (2) for internal rotation, and a clamping arm (4) is fixed around the front of the rotation control part (2). A loading assembly (5) is provided on the top of the support sleeve (1), and swing-type welding assemblies (7) are symmetrically provided on both sides of the loading assembly (5). A power mechanism 2 (8) is provided on both sides of the loading assembly (5), and the power mechanism 2 (8) drives the swing-type welding assembly (7) to swing back and forth. An elastic positioning part (6) is provided below the side of the loading assembly (5), and the auxiliary welding part is located at the outer side of the clamping arm (4) at a horizontal position. The elastic positioning portion (6) comprises a baffle (61), a fixed shaft (62) and a torsion spring (63). The swing type welding assembly (7) comprises an arc frame (71), an arc rack (72), a swing arm (73), an intermediate rod (74) and a laser welding part (75).

2. A welding positioning device according to claim 1, characterized in that: A power mechanism (3) is provided on the outer side of the support sleeve (1), and the power mechanism (3) comprises a control motor (1) and a gear (2), and the control motor (1) drives the meshing rotation control part (2) to rotate intermittently through the gear (2), and the power mechanism (2) comprises a control motor (2) and a gear (3), and the control motor (2) drives the meshing arc-shaped rack (72) to rotate reciprocatingly through the gear (3).

3. A welding positioning device according to claim 2, characterized in that: The rotation control part (2) comprises a rotating plate (21), a fixed shaft (22), a gear one (23), a connecting arc groove (24) and an intermediate opening (25); the fixed shaft (22) rotates through the support sleeve (1) and is fixedly connected to the rotating plate (21); the gear one (23) is fixedly sleeved on the outer surface of the fixed shaft (22); a snap ring is provided on the outer side surface of the rotating plate (21); the rotating plate (21) is rotatably sleeved inside the supporting sleeve (1) through the snap ring; the connecting arc groove (24) is provided on the outer surface of the rotating plate (21); the intermediate opening (25) is provided on the front surface of the rotating plate (21) and is connected to the connecting arc groove (24); the connecting arc groove (24) corresponds to and is connected to the clamping arm (4) one by one; an air supply part (10) is fixedly provided on the front surface of the supporting sleeve (1); the air supply part (10) inputs pressurized air to the connecting arc groove (24) through the opening.

4. A welding positioning device according to claim 3, characterized in that: The clamping arm (4) comprises a clamping arm body (41), a top opening (42), a limit block (43), a clamping plate (44), a spring (45) and a connecting groove (46); the clamping arm body (41) is fixed on the front side of the rotating plate (21); the top opening (42) is opened at the top of the clamping arm body (41); the connecting groove (46) is opened inside the clamping arm body (41); the two ends of the connecting groove (46) are respectively connected with the top opening (42) and the connecting arc groove (24); the limit block (43) is fixed at the top of the clamping arm body (41); the clamping plate (44) is movably sleeved in the top opening (42); one end of the spring (45) is fixed in the top opening (42), and the other end is fixedly connected to the clamping plate (44).

5. A welding positioning device according to claim 4, characterized in that: The feeding assembly (5) comprises a feeding frame (51), an electric push rod (52), a cross bar (53), a side groove (54) and an assembly groove (55); the electric push rod (52) is fixed on the top of the support sleeve (1); one end of the cross bar (53) is fixedly connected to the movable end of the electric push rod (52), and the other end is fixedly connected to the feeding frame (51); the side groove (54) is arranged at the bottom of the side of the feeding frame (51); the assembly groove (55) is arranged above the side groove (54); and the side groove (54) is communicated with the inside of the feeding frame (51).

6. A welding positioning device according to claim 5, characterized in that: The baffle (61) is movably sleeved in the assembly groove (55) to block the side groove (54); the fixed shaft (62) is fixedly connected in the assembly groove (55); the baffle (61) is rotatably sleeved on the outer surface of the fixed shaft (62); the torsion spring (63) is sleeved on the outer side of the fixed shaft (62); and the torsion spring (63) is fixedly connected between the baffle (61) and the loading frame (51).

7. A welding positioning device according to claim 6, characterized in that: The arc frame (71) is fixed on the outer side of the loading frame (51), the arc rack (72) is movably sleeved in the arc frame (71), the swing arm (73) is fixedly connected to the middle rod (74), the middle rod (74) is fixedly connected to the front side of the arc rack (72), and the laser welding part (75) is fixed to the bottom of the side of the swing arm (73).

8. A welding positioning device according to claim 7, characterized in that: A grinding mechanism is provided on the side of the loading frame (51), and the grinding mechanism comprises a hydraulic push rod (9), a grinding block (11) and an embedding groove (12). The embedding groove (12) is opened at the bottom of the loading frame (51), the hydraulic push rod (9) is fixedly installed in the embedding groove (12), and the grinding block (11) is fixed on the movable end of the hydraulic push rod (9), and the movable end of the hydraulic push rod (9) faces downward.

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