Integrated laser welding and shielded welding application structure

Abstract

The utility model discloses an integrated laser welding and shielded welding application structure which comprises a base and a middle seat, the base is provided with a gas channel in an axial through mode, one axial end of the base is arranged in the middle of the middle seat in a penetrating mode, and the other axial end of the base is connected with a gas inlet pipe used for inputting inert gas. A cover plate and a top cover are arranged on the middle seat, and a parent body positioning mold for placing a parent body is arranged in the center of the top cover. The base is provided with the gas channel, inert gas is input through the external gas inlet pipe, the connection of the gas inlet pipe and the base does not affect the fixation of the base and the three-jaw chuck, the cover plate is further provided with the gas outlet hole, and the inert gas is jetted to the cover plate through the base and continuously passes through the periphery of the matrix from the gas outlet hole. Air isolation is effectively formed on the periphery of a matrix, the matrix is prevented from making contact with excessive oxygen in the welding process, and therefore the quality of finished products is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of equipment and methods for bracket welding in orthodontics, and relates to an application structure of integrated laser welding and shielded welding. Background Art

[0002] A fixture for integrated laser welding of brackets disclosed in Chinese Utility Model Patent CN211305244U is used for welding between the bracket matrix and the base plate for orthodontics. In actual welding work, it is found that there are still certain problems, that is, the high heat generated during laser welding will cause the matrix to react with environmental oxygen and be over-oxidized, affecting the service performance of the welded finished product, resulting in possible failure to meet quality requirements or affecting the service life. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an application structure of integrated laser welding and shielded welding.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The application structure of integrated laser welding and shielded welding includes a base and a middle seat. The base is provided with a gas channel penetrating along the axial direction. One axial end of the base passes through the middle of the middle seat, and the other end is connected with an inlet pipe for inert gas input. A cover plate and a top cover are arranged on the middle seat. A matrix positioning die for placing the matrix is arranged at the center of the top cover. A receiving hole for placing the base plate is arranged on the cover plate corresponding to the position of the matrix positioning die. A through air outlet is also arranged on the cover plate, and the air outlet is located on the periphery of the receiving hole.

[0006] Further, a plurality of air outlets are provided and are distributed in a circumferential annular array along the periphery of the receiving hole.

[0007] Further, a groove is arranged at the bottom of the cover plate, and the bottom opening of the air outlet is located in the groove.

[0008] Further, a die core device is also arranged in the base. The die core device includes a die core, a die core sleeve, a spring and a stud. The die core sleeve, die core, spring and stud are sequentially arranged in the base along the axial direction downward. The stud is threadedly connected with the base. Two ends of the spring are respectively abutted against the die core and the stud. The outer periphery of the die core is in clearance fit with the inner periphery of the base. The die core sleeve is tightly fitted with the base. A support rod is arranged at the top of the die core. The middle of the die core sleeve is provided with a through hole, and the support rod passes through the die core sleeve and extends towards the receiving hole.

[0009] Furthermore, the gas channel includes a first channel, a second channel, and a third channel. The first channel is arranged to pass through the axial direction of the stud, the second channel is formed between the outer periphery of the mold core and the inner periphery of the base, and the third channel is arranged to pass through the axial direction of the mold core sleeve. The top opening of the third channel faces the air outlet.

[0010] Furthermore, one end of the top cover is fixed to the middle seat through a top cover connector, and an induction magnet block is provided inside the other end, and a positioning magnet that is inductively coupled to the induction magnet block is fixed to the corresponding middle seat.

[0011] Furthermore, the positioning magnet is fixed to the side of the middle seat by screws.

[0012] Furthermore, one end of the cover plate is connected to the middle seat through a cover plate connector, and a cover plate positioning piece is provided on the middle seat corresponding to the other end.

[0013] In summary, the benefits of the present invention are:

[0014] The utility model provides a gas channel on the base, and inputs inert gas through an external air inlet pipe. The connection between the air inlet pipe and the base does not affect the fixation of the base and the three-jaw chuck. An air outlet is further provided on the cover plate. The inert gas is sprayed toward the cover plate through the base and continuously passes from the air outlet to the periphery of the matrix, so as to effectively form an air isolation at the periphery of the matrix, avoid the matrix from being exposed to too much oxygen during welding, and thus effectively improve the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-section structure in.

[0017] Figure 3 Schematic diagram of the cover structure.

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the middle cover from the bottom perspective.

[0019] Figure 5 It is a structural diagram of the base and core sleeve.

[0020] Identifications in the figure: 1. Base; 11. Stud; 12. Spring; 13. Die core; 131. Support rod; 14. Die core sleeve; 2. Middle seat; 21. Top cover connecting piece; 22. Positioning magnet; 23. Cover plate positioning piece; 24. Cover plate connecting piece; 3. Top cover; 31. Maternal positioning die; 32. Inductive magnet block; 4. Cover plate; 41. Accommodating hole; 42. Air vent; 43. Groove; 5. Inlet pipe; 51. First channel; 52. Second channel; 53. Third channel. Specific embodiments

[0021] The following specific examples illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0022] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0023] All directional indications (such as up, down, left, right, front, back, horizontal, vertical...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0024] Due to reasons such as installation errors, the parallel relationship referred to in the embodiments of the present utility model may actually be an approximate parallel relationship, and the vertical relationship may actually be an approximate vertical relationship.

[0025] The present utility model provides an integrated laser welding and protective welding application structure. Referring to Figure 1 and Figure 2 , it includes a base 1, a middle seat 2, a top cover 3, and a cover plate 4. The base 1 has a hollow columnar structure and can be clamped by a three-jaw chuck on a laser welding machine. One end of the base 1 in the axial direction is internally threaded with a stud 11, and the other end passes through the middle seat 2.

[0026] The middle seat 2 has a block structure that is wider in the middle and narrower at both ends. A through hole for the base 1 to pass through is provided in the middle of the middle seat 2. The inner wall of the through hole can achieve an interference fit with the outer circumference of the base 1, or achieve a tight fit through pins, keys, etc. After the base 1 and the middle seat 2 are fitted, the end surface at the axial end of the base 1 is flush with the upper surface of the middle seat 2.

[0027] Two end faces are respectively arranged at the narrowed two ends of the middle seat 2. Among them, a blind hole is provided on the first end face, and a screw hole is provided on the second end face. The blind hole is used for inserting the top cover connecting piece 21. After the top cover connecting piece 21 is fitted with the blind hole, by inserting a screw into the blind hole from the bottom of the middle seat 2, the top cover connecting piece 21 is tightened by the screw, so as to realize the fixation between the top cover connecting piece 21 and the middle seat 2.

[0028] The top cover 3 is in the shape of a handle. Two feet are arranged at one end of the top cover 3. The top cover connecting piece 21 has a convex block for inserting between the two feet. A pin shaft hole is provided on the convex block. The left and right two feet are connected with the top cover connecting piece 21 through a pin shaft, so that the top cover 3 can rotate relative to the top cover connecting piece 21; the other end of the top cover 3 is close to the position of the second end face on the middle seat 2. A positioning magnet 22 is arranged on the second end face. By passing a screw through the positioning magnet 22 and screwing it into the screw hole on the second end face, the fixation between the positioning magnet 22 and the middle seat 2 is realized. The other end of the top cover 3 can abut against the positioning magnet 22 under the closing action of the top cover 3, and an induction magnet block 32 is arranged inside the top cover 3, so that the positioning magnet 22 can attract and fix the top cover 3. This closed state is the state when the integrated laser welding protection welding application structure can be welded. A certain space is formed between the inner side of the top cover 3 and the middle seat 2.

[0029] A cover plate connecting piece 24 is also hinged on the top cover connecting piece 21 through a pin shaft. One end of the cover plate 4 is fixedly arranged on the cover plate connecting piece 24 through a screw. The other end of the cover plate 4 extends close to the other end of the top cover 3. The other end of the cover plate 4 can be attracted by the induction magnet block 32 and abut against the top cover 3. A cover plate positioning piece 23 is arranged on one side of the middle seat 2 close to the second end face. The cover plate positioning piece 23 is arranged in a concave shape, so that the other end of the cover plate 4 can be snapped downwards. When the top cover 3 is closed on the positioning magnet 22, the cover plate 4 is snapped into the cover plate positioning piece 23, and a certain height gap is formed between the cover plate 4 and the middle seat 2.

[0030] A receiving hole 41 for receiving the base plate is arranged in the middle of the cover plate 4, which is used for fixing the base plate during welding.

[0031] A mother body positioning die 31 is arranged below the middle part of the inner side of the top cover 3. The mother body positioning die 31 is clamped on the top cover 3, and the mother body positioning die 31 is fixed to the top cover 3 through a fastening screw. A fixing part for fixing the mother body is arranged on one side of the mother body positioning die 31 opposite to the receiving hole 41.

[0032] Inside the hollow interior of the base 1, a spring 12, a die core 13, and a die core sleeve 14 are sequentially arranged axially upward. Among them, the die core sleeve 14 is arranged at the top of the base 1. The outer periphery of the die core sleeve is tightly fitted with the inner periphery of the base 1. The die core 13 includes a cylinder and a support rod 131. The support rod 131 extends along the axial direction of the cylinder. The cylinder is in clearance fit with the inner periphery of the base 1, enabling the die core 13 to move axially relative to the base 1. The spring 12 is arranged between the die core 13 and the stud 11, thereby providing an upward elastic force to the die core 13. The middle part of the die core sleeve 14 is axially penetrated, enabling the support rod 131 to pass upward through the die core sleeve 14 and extend upward to the accommodation hole 41 to form an abutment with the base plate, and fixing the parent body and the base plate during welding.

[0033] During the welding operation, the base 1 is placed and clamped in the three-jaw chuck of the laser welding equipment. The top cover 3 is opened, and the product parent body is set on the parent body positioning die 31. The cover plate 4 is connected to the top cover 3. The base plate is set in the accommodation hole 41. The top cover 3 is closed and fixed to the positioning magnet 22 to limit the fixed positions of the parent body and the base plate to start the laser welding operation. Among them, the debugging method of the laser welding process and the method of laser welding can refer to the content disclosed in the fixture for bracket integrated laser welding of CN211305244U, which will not be elaborated here.

[0034] Furthermore, the high heat generated during the welding process will cause the parent body and the base plate to be over-oxidized when in contact with environmental oxygen, which will affect the use performance of the parent body to a certain extent. Therefore, in this embodiment, an inert gas protection structure is also included.

[0035] Refer to Figure 2 The inert gas protection structure includes a first channel 51 arranged on the stud 11, a second channel 52 arranged on the die core 13, a third channel 53 arranged on the die core sleeve 14, and an air outlet hole 42 arranged on the cover plate 4. Among them, the first channel 51 penetrates through the stud 11 and is communicated with the internal hollow of the base 1; the second channel 52 is arranged on the outer peripheral wall of the cylinder and forms an axial communication with the inner peripheral wall of the base 1; refer to Figure 5 The third channel 53 is axially penetrated through the die core sleeve 14 along the axial direction of the base 1 to communicate the inside and outside of the hollow of the base 1. The upper end opening of the third channel 53 faces the cover plate 4; refer to Figure 3 The air outlet hole 42 is arranged on the periphery of the accommodation hole 41. The air outlet hole 42 can be set as multiple and arranged in a circumferential ring along the periphery of the accommodation hole 41.

[0036] By connecting the intake pipe 5 to the bottom of the stud 11, the intake pipe 5 is connected to an air pump, and the air pump inputs inert gas into the stud 11 through the intake pipe 5. The inert gas can flow along the gas path formed by the first channel 51, the second channel 52, the third channel 53, and the air outlet 42, and finally spray upward from the air outlet 42, so that the inert gas fills the periphery of the parent body, playing a role in isolating oxygen and effectively avoiding oxidation during the welding process.

[0037] In some embodiments, referring to Figure 4 , a groove 43 is further provided at the bottom of the cover plate 4, and the bottom openings of the plurality of air outlets 42 are all located in the groove 43. The groove 43 has a certain effect of gathering and guiding the inert gas sprayed from the third channel 53, enabling more inert gas to pass through the air outlet 42 and reducing spillage.

[0038] In some embodiments, the stud 11 includes an internal and external thread conversion dental sleeve and a threaded gas pipe joint that are both provided in a through manner. The internal and external thread conversion dental sleeve is threadedly connected to the base 1, and the threaded gas pipe structure is threadedly connected to the internal and external thread conversion dental sleeve. The intake pipe 5 is fixedly connected to one end of the threaded gas pipe joint.

[0039] In some embodiments, the inert gas is argon.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Claims

1. Integrated laser welding and protection welding application structure, characterized in that, It includes a base (1) and a middle seat (2). The base (1) is provided with a gas channel penetrating axially. One axial end of the base (1) penetrates through the middle of the middle seat (2), and the other end is connected to an inlet pipe (5) for inert gas input; a cover plate (4) and a top cover (3) are arranged on the middle seat (2). A mother body positioning mold (31) for placing the mother body is arranged at the center of the top cover (3); a receiving hole (41) for placing the base plate is arranged on the cover plate (4) at a position corresponding to the mother body positioning mold (31); a through air outlet hole (42) is also formed on the cover plate (4), and the air outlet hole (42) is located on the circumference of the receiving hole (41).

2. The integrated laser welding and shielding welding application structure according to claim 1, wherein, The air outlet holes (42) are provided in plurality and are distributed in a circumferential annular array along the circumference of the receiving hole (41).

3. The integrated laser welding and shielding welding application structure according to claim 2, characterized in that, A groove (43) is arranged at the bottom of the cover plate (4), and the bottom opening of the air outlet hole (42) is located in the groove (43).

4. The integrated laser welding and shielded welding application structure according to claim 1, characterized in that, A mold core (13) device is further arranged in the base (1). The mold core (13) device includes a mold core (13), a mold core sleeve (14), a spring (12) and a stud (11). The mold core sleeve (14), the mold core (13), the spring (12) and the stud (11) are sequentially arranged in the base (1) axially downward. The stud (11) is threadedly connected to the base (1). Two ends of the spring (12) are respectively abutted against the mold core (13) and the stud (11). The outer circumference of the mold core (13) is in clearance fit with the inner circumference of the base (1). The mold core sleeve (14) is tightly fitted with the base (1). A support rod (131) is arranged at the top of the mold core (13). The middle part of the mold core sleeve (14) is provided with a through hole, and the support rod (131) penetrates through the mold core sleeve (14) and extends towards the receiving hole (41).

5. The integrated laser welding and shielding welding application structure according to claim 4, wherein, The gas channel includes a first channel (51), a second channel (52) and a third channel (53). The first channel (51) is arranged to penetrate axially along the stud (11). The second channel (52) is formed between the outer circumference of the mold core (13) and the inner circumference of the base (1). The third channel (53) is arranged to penetrate axially along the mold core sleeve (14), and the top opening of the third channel (53) faces the air outlet hole (42).

6. The integrated laser welding and shielded welding application structure according to claim 1, characterized in that, One end of the top cover (3) is fixed on the middle seat (2) through a top cover connecting piece (21), and an induction magnet block (32) is arranged inside the other end. A positioning magnet (22) which is inductive with the induction magnet block (32) is fixed on the corresponding middle seat (2).

7. The integrated laser welding and shielding welding application structure according to claim 6, wherein The positioning magnet (22) is fixed on the side of the middle seat (2) through screws.

8. The integrated laser welding and shielded welding application structure according to claim 1, characterized in that, One end of the cover plate (4) is connected to the middle seat (2) through a cover plate connecting piece (24), and a cover plate positioning piece (23) is arranged on the corresponding middle seat (2) at the end of the other end.

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