Auxiliary device for laser penetration welding of magnetic circuit part
By designing a laser penetration welding auxiliary device for the magnetic circuit part of the contactor, the problem of difficulty in ensuring the position of the fixed plate during welding is solved, achieving high-quality welding and easy operation.
Patent Information
- Application Number
- CN202421082775.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the prior art, the lack of special welding auxiliary devices when welding the magnetic circuit part of the contactor, which makes it difficult to ensure the relative position of the two fixed plates, the welding quality is low and the operation is cumbersome.
An auxiliary device for laser penetration welding of the magnetic circuit part is designed. The device includes a positioning module and a movable fixing module. By adjusting the welding program and rotating the fixing module 180°, the two fixing plates can be accurately welded.
Through the auxiliary device that is clamped in place at one time, the deformation of parts during the welding process is reduced, and the welding quality and operation convenience are improved.
Smart Images
Figure CN222370676U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding of a magnetic circuit part of a contactor, in particular to an auxiliary device for laser penetration welding of a magnetic circuit part. Background Art
[0002] Combination Figure 1 and Figure 2 As shown, in a certain type of contactor, the magnetic circuit part is composed of a magnetic circuit body 31 and two fixed plates 32, which are assembled together by welding. The three-dimensional schematic diagram before welding is as shown in FIG. Figure 1 As shown, the three-dimensional schematic diagram after welding is as follows Figure 2 Therefore, the workpiece to be welded includes a magnetic circuit body 31 and two fixing plates 32, and two cylindrical pins 33 are respectively arranged at both ends of the magnetic circuit body 31.
[0003] Laser penetration welding: a welding method that uses laser to hit the surface of metal, generates heat to melt the metal, and then combines the two metals together.
[0004] After welding, the positional relationship between the fixed plate and the magnetic circuit body must be ensured, the welding must be firm and reliable, the deformation of the parts caused by heat during the welding process must be reduced, and the operation must be convenient to reduce the welding difficulty of the operator.
[0005] for Figure 1 When welding the magnetic circuit part of the contactor shown, due to the lack of a dedicated welding auxiliary device, two clamping operations are required to weld the two fixed plates. It is difficult to ensure the relative position of the two fixed plates, resulting in low welding quality and cumbersome welding operations. Utility Model Content
[0006] The main purpose of the utility model is to propose an auxiliary device for laser penetration welding of a magnetic circuit part. Before welding, the magnetic circuit body and two fixing plates are clamped in place at one time. By adjusting the welding program and rotating the fixing module 180°, the two fixing plates can be welded, aiming to solve the above-mentioned technical problems.
[0007] To achieve the above-mentioned purpose, the utility model proposes an auxiliary device for laser penetration welding of a magnetic circuit portion, the auxiliary device comprising a positioning module and a fixing module movably mounted on the positioning module; the fixing module comprises a fixing block and two positioning pressure plates; a first U-shaped groove is arranged on the front side of the fixing block, the two positioning pressure plates are respectively arranged at the upper and lower ends of the first U-shaped groove, and the positioning pressure plates are fastened to the fixing block by standard screws; a locking screw is screwed on one of the side walls of the first U-shaped groove, and a pressure block is arranged at the inner end of the locking screw.
[0008] Preferably, the positioning module includes a base and a plurality of positioning pins arranged on the base; a plurality of positioning holes are arranged on the fixed block; the positioning holes are through holes that penetrate up and down; the positioning holes on the fixed block slideably cooperate with the positioning pins on the base; the top ends of the positioning pins are all hemispherical.
[0009] Preferably, the positioning pin includes a first positioning pin and a second positioning pin; the positioning hole includes a first positioning hole and a second positioning hole located in the two side walls of the first U-shaped groove; the upper half of the first positioning pin is set as the sixth connecting section for sliding cooperation with the first positioning hole; the upper half of the second positioning pin is set as the third connecting section for sliding cooperation with the second positioning hole; the diameter of the sixth connecting section is greater than the diameter of the third connecting section.
[0010] Preferably, the first positioning hole is a circular hole, and the second positioning hole is a waist-shaped hole.
[0011] Preferably, the positioning module also includes a positioning column; a third matching hole is arranged at the center position of the base; the outer cylindrical surface of the positioning column is stepped, and includes a limit section, a fifth connecting section, and a positioning matching section from top to bottom; the positioning column is inserted into the third matching hole of the base, and the fifth connecting section forms an interference fit with the third matching hole; the lower surface of the limit section abuts against the top surface of the base; the positioning matching section extends from the lower surface of the base; and the edges of the lower end of the positioning matching section are chamfered.
[0012] Preferably, a pressing groove is provided on the top surface of the base near the two ends, and a through hole is provided at the bottom of the pressing groove.
[0013] Preferably, protrusions are integrally formed at both ends of the positioning pressure plate, and through holes are provided on the protrusions; second U-shaped grooves are respectively provided at the upper and lower ends of the two side walls of the first U-shaped groove; a first threaded hole is provided at the bottom of the second U-shaped groove; the protrusions at both ends of the positioning pressure plate extend into the second U-shaped groove, and the standard screws pass through the through holes on the protrusions and are screwed into the first threaded holes.
[0014] Preferably, positioning step grooves are respectively provided on the opposing surfaces of the upper and lower positioning pressure plates, and are used to position the fixing plate on the workpiece to be welded.
[0015] Preferably, waist-shaped grooves are respectively arranged on the inner surfaces of the two side walls of the first U-shaped groove; the position of the waist-shaped groove corresponds to the position of the pin on the workpiece to be welded, and the waist-shaped groove is used to slide with the pin on the workpiece to be welded; a square hole is arranged on the back side of the fixed block, and the square hole passes through the first U-shaped groove.
[0016] Preferably, the locking screw includes a handle section, and a first connecting section integrally formed with the handle section; the outer cylindrical surface of the first connecting section is provided with an external thread; the outer peripheral surface of the handle section is provided with an anti-slip mesh; a first matching hole is provided on the end surface of the first connecting section; a second threaded hole is provided on one of the side walls of the first U-shaped groove; the first connecting section of the locking screw is screwed into the second threaded hole; the inner end of the first connecting section extends into the first U-shaped groove; the second connecting section is integrally formed on the end surface of the pressure block; the second connecting section of the pressure block is pressed into the first matching hole of the locking screw to form an interference fit.
[0017] Due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows:
[0018] (1) By utilizing the auxiliary device provided by the utility model, the magnetic circuit body on the workpiece to be welded and the fixing plates on both sides of the magnetic circuit body can be placed together in the first U-shaped groove of the fixing block before welding. When the standard screw is tightened to lock the positioning plate, the positioning plates located at the upper and lower ends of the first U-shaped groove can respectively press the two fixing plates of the workpiece to be welded, so that the two fixing plates of the workpiece to be welded are close to the magnetic circuit body. Since the fixing module is movably mounted on the positioning module, after a fixing plate is welded during the welding process, the entire fixing module is turned 180° together with the workpiece to be welded, and the fixing module is mounted on the positioning module again, and then the other fixing plate can be welded, with good welding quality and convenient operation.
[0019] (2) The auxiliary device clamps the workpiece in place once before welding, reducing the deformation of the welded parts caused by heat during welding, improving welding quality and facilitating operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0021] Figure 1 This is a schematic diagram of the magnetic circuit body and the fixing plate before welding;
[0022] Figure 2 This is a schematic diagram of the magnetic circuit body and the fixed plate after welding;
[0023] Figure 3 A schematic diagram of the auxiliary device provided by the utility model;
[0024] Figure 4A schematic diagram of the auxiliary device provided by the utility model after installation;
[0025] Figure 5 This is a schematic diagram of a fixed module in the utility model;
[0026] Figure 6 This is a schematic diagram of the positioning module in the utility model;
[0027] Figure 7 It is a three-dimensional diagram of the fixing block in the utility model;
[0028] Figure 8 This is the front view of the fixing block in the utility model;
[0029] Fig. 9 It is a top view of the fixing block in the utility model;
[0030] Fig.10 It is a right view of the fixing block in the utility model;
[0031] Fig.11 This is a three-dimensional diagram of the positioning plate in the utility model;
[0032] Fig.12 This is the front view of the positioning pressing plate in the utility model;
[0033] Fig.13 This is a schematic diagram of the locking screw in the utility model;
[0034] Fig.14 This is a schematic diagram of the pressure block in the utility model;
[0035] Fig.15 This is a schematic diagram of the second positioning pin in the utility model;
[0036] Fig.16 This is a schematic diagram of the base in the utility model;
[0037] Fig.17 This is a schematic diagram of the positioning column in the utility model;
[0038] Fig.18 This is a schematic diagram of the first positioning pin in the utility model.
[0039] Explanation of the accompanying symbols: 1. Fixed block; 1a. Square hole; 2. Positioning pressure plate; 3. Standard screw; 4. Locking screw; 4a. Handle section; 5. Pressure block; 6. Second positioning pin; 7. Base; 8. Positioning column; 8a. Limiting section; 8b. Positioning matching section; 8c. Back-cut groove; 9. First positioning pin; 10. Waist-shaped groove; 11. First positioning hole; 12. Second positioning hole; 13. First threaded hole; 14. First U-shaped groove; 15. Second threaded hole ; 16. Second U-shaped groove; 17. Via hole; 18. Welding clearance groove; 19. Positioning step groove; 20. First matching hole; 21. First connecting section; 22. Second connecting section; 23. Third connecting section; 24. Fourth connecting section; 25. Second matching hole; 26. Third matching hole; 27. Fourth matching hole; 28. Fifth connecting section; 29. Sixth connecting section; 30. Seventh connecting section; 31. Magnetic circuit body; 32. Fixed plate; 33. Pin. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0042] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0043] Combination Figure 1 and Figure 2 As shown, in a certain type of contactor, the magnetic circuit part is composed of a magnetic circuit body 31 and two fixed plates 32, which are assembled together by welding. The three-dimensional schematic diagram before welding is as shown in FIG. Figure 1 As shown, the three-dimensional schematic diagram after welding is as follows Figure 2 Therefore, in this embodiment, the workpiece to be welded includes a magnetic circuit body 31 and two fixing plates 32, and two cylindrical pins 33 are respectively arranged at both ends of the magnetic circuit body 31.
[0044] Combination Figures 3 to 18 The figure shows a specific embodiment of an auxiliary device for laser penetration welding of a magnetic circuit part provided by the utility model. The auxiliary device comprises a positioning module and a fixing module movably mounted on the positioning module; the fixing module comprises a fixing block 1 and two positioning pressure plates 2; a first U-shaped groove 14 is arranged on the front side of the fixing block 1, and the two positioning pressure plates 2 are respectively arranged at the upper and lower ends of the first U-shaped groove 14, and the positioning pressure plates 2 are fastened to the fixing block 1 by standard screws 3; a locking screw 4 is screwed on one side wall of the first U-shaped groove 14, and a pressure block 5 is arranged at the inner end of the locking screw 4.
[0045] The positioning module includes a base 7 and a plurality of positioning pins arranged on the base 7; a plurality of positioning holes are arranged on the fixing block 1; the positioning holes are through holes that penetrate from top to bottom; the positioning holes on the fixing block 1 are slidably matched with the positioning pins on the base 7, so as to facilitate the separation of the fixing modules from each other; the top ends of the positioning pins are all hemispherical, and the hemispherical shape plays a guiding role during the mutual insertion of the positioning pins and the positioning holes.
[0046] Combination Figure 3 , Fig. 9 As shown, the first U-shaped groove 14 is a through structure at both ends, and the opening of the first U-shaped groove 14 faces the front side of the fixed block 1; the interval between the two positioning plates 2 forms a clamping space for clamping the workpiece to be welded. The schematic diagram after the workpiece to be welded is clamped is as shown in FIG. Figure 4 shown.
[0047] By adopting the above structure, before welding, the magnetic circuit body 31 on the workpiece to be welded and the fixing plates 32 on both sides of the magnetic circuit body 31 can be placed together in the first U-shaped groove of the fixing block 1, specifically in the clamping space formed between the two positioning plates 2. When the standard screw 3 is tightened to lock the positioning plates 2, the two positioning plates 2 can respectively press the two fixing plates 32 of the workpiece to be welded, so that the two fixing plates 32 of the workpiece to be welded are close to the magnetic circuit body 31. Since the fixing module and the positioning module adopt the positioning pin and the positioning hole to slide to form a movable connection structure, after welding one of the fixing plates 32, the entire fixing module together with the workpiece to be welded is turned 180°, and the fixing module is installed on the positioning module again, and the other fixing plate 32 can be welded, with good welding quality and convenient operation.
[0048] In this embodiment, the number of the positioning pins is two, including a first positioning pin 9 and a second positioning pin 6; correspondingly, the number of the positioning holes is also two, namely the first positioning hole 11 and the second positioning hole 12 located in the two side walls of the first U-shaped groove 14; the upper half of the first positioning pin 9 is set as the sixth connecting section 29 for sliding cooperation with the first positioning hole 11; the upper half of the second positioning pin 6 is set as the third connecting section 23 for sliding cooperation with the second positioning hole 12; after the fixing module is flipped 180°, the first positioning pin 9 is still required to cooperate with the first positioning hole 11, and the second positioning pin 6 with the second positioning hole 12, so the diameter of the sixth connecting section 29 is set to be larger than the diameter of the third connecting section 23 to play an error-proofing role.
[0049] Combination Fig.15 , Fig.18 As shown, the outer cylindrical surface of the second positioning pin 6 is stepped, including a third connecting segment 23 and a fourth connecting segment 24, and the diameter of the third connecting segment 23 is greater than the diameter of the fourth connecting segment 24 to form a stepped surface; the outer cylindrical surface of the first positioning pin 9 is also stepped, including a sixth connecting segment 29 and a seventh connecting segment 30, and the diameter of the sixth connecting segment 29 is greater than the diameter of the seventh connecting segment 30 to form a stepped surface.
[0050] Combination Fig.16 As shown, a fourth matching hole 27 and a second matching hole 25 are provided on the base 7 .
[0051] The fourth connection section 24 of the second positioning pin 6 is vertically pressed into the second matching hole 25 of the base 7 to form an interference fit; the sixth connection section 29 of the first positioning pin 9 is vertically pressed into the fourth matching hole 27 of the base 7 to form an interference fit. The step surfaces of the second positioning pin 6 and the first positioning pin 9 are both against the top surface of the base 7.
[0052] Combination Fig. 9 As shown, in order to avoid over-positioning between the two positioning pins and the two positioning holes, the first positioning hole 11 is a circular hole and the second positioning hole 12 is a waist-shaped hole, so as to better realize the sliding and plug-in cooperation between the two positioning pins and the two positioning holes.
[0053] Combination Figure 3 , Figure 6 and Fig.16 , Fig.17As shown, the positioning module also includes a positioning column 8; a third matching hole 26 is provided at the center of the base 7; the outer cylindrical surface of the positioning column 8 is stepped, and includes a limiting section 8a, a fifth connecting section 28, and a positioning matching section 8b from top to bottom; the positioning column 8 is inserted into the third matching hole 26 of the base 7, and the fifth connecting section 28 forms an interference fit with the third matching hole 26; the lower surface of the limiting section 8a abuts against the top surface of the base 7; the positioning matching section 8b extends from the lower surface of the base 7; and the edges of the lower end of the positioning matching section 8b are provided with chamfers. A pressing groove 7a is provided near the two ends of the top surface of the base 7, and a through hole is provided at the bottom of the pressing groove 7a.
[0054] In the auxiliary device, the fixing module mainly plays the role of clamping the workpiece to be welded; the positioning module mainly plays two roles, one is to position the fixing module, that is, to position the fixing module by slidingly matching two positioning pins with two positioning holes, and the other is to position the entire auxiliary device on the workbench of the laser penetration welding equipment. Specifically, the principle of positioning the entire auxiliary device on the workbench of the laser penetration welding equipment is as follows: since the positioning matching section 8b of the positioning column 8 extends from the lower surface of the base 7, the positioning matching section 8b is inserted into the positioning hole on the workbench of the laser penetration welding equipment for positioning (the workbench of the laser penetration welding equipment is not shown in the figure), and at the same time, the pressure block on the workbench of the laser penetration welding equipment is pressed tightly on the pressure groove 7a at both ends of the base 7 for fixing, or a bolt is passed through the through hole provided at the bottom of the pressure groove 7a to be threadedly connected and fixed with the workbench of the laser penetration welding equipment.
[0055] Combination Figure 5 , Figure 7 ,as well as Figures 10 to 12 As shown, a protrusion is integrally formed at both ends of the positioning plate 2, and a through hole 17 is provided on the protrusion; a second U-shaped groove 16 is respectively provided at the upper and lower ends of the two side walls of the first U-shaped groove 14; a first threaded hole 13 is provided at the bottom of the second U-shaped groove 16; the protrusions at both ends of the positioning plate 2 extend into the second U-shaped groove 16, and the standard screw 3 passes through the through hole 17 on the protrusion and is screwed into the first threaded hole 13. By providing a structure in which the protrusion matches the second U-shaped groove 16, it is convenient to fasten the positioning plate 2 and the fixing block 1 through the standard screw 3, so that when clamping the workpiece to be welded, the two positioning plates 2 can respectively press the two fixing plates 32 of the workpiece to be welded.
[0056] Combination Fig. 9 , Fig.10 , Fig.12As shown, the width of the first U-shaped groove 14 of the fixing block 1 is L1, and the width of the second U-shaped groove 16 is L2; the length of the portion of the positioning plate 2 located in the first U-shaped groove 14 is X1, and the width of the protrusions at both ends of the positioning plate 2 is X2; L1 and X1, as well as L2 and X2, form a clearance fit of 0.02 to 0.04 mm.
[0057] Combination Fig.11 , Fig.12 As shown, positioning step grooves 19 are respectively provided on the opposing surfaces of the upper and lower positioning plates 2; the positioning step grooves 19 are used to position the fixing plate 32 on the workpiece to be welded. Specifically, the length of the positioning step grooves 19 matches the length of the fixing plate 32 on the workpiece to be welded, and the fixing plate 32 can be stuck in the positioning step grooves 19. During welding, in order to avoid interference between the positioning plates 2, a plurality of welding clearance grooves 18 are provided on the positioning plates 2. The positions of the welding clearance grooves 18 are designed according to the welding parts, and will not be described in detail here.
[0058] Combination Fig.10 As shown, the distance between the bottoms of the upper and lower second U-shaped grooves 16 is L3. Figure 2 As shown, the sum of the thickness of the magnetic circuit body 31 and the two fixing plates 32 is T. The schematic diagram of the workpiece to be welded after clamping is as follows: Figure 4 As shown. In order to ensure that the two positioning pressure plates 2 can press the fixed plate 32, the depth t of the positioning step groove 19 must also be considered. Therefore, L3<T-2t must be satisfied in the end. Therefore, when designing the groove depth of the second U-shaped groove 16, it is necessary to consider the sum T of the thickness of the magnetic circuit body 31 and the two fixed plates 32, and also the depth t of the positioning step groove 19.
[0059] Combination Figure 7 , Figure 8 As shown, waist-shaped grooves 10 are respectively provided on the inner surfaces of the two side walls of the first U-shaped groove 14; the position of the waist-shaped grooves 10 corresponds to the position of the pins on the workpiece to be welded, and the waist-shaped grooves 10 are used to slide with the pins on the workpiece to be welded. Figure 5 As shown, a square hole 1a is provided on the back side of the fixing block 1, and the square hole 1a penetrates the first U-shaped groove 14. By adopting the above structure, when clamping the workpiece to be welded, the magnetic circuit body 31 is laid flat so that the pin 33 is in a horizontal state, and the pin 33 is slidably matched with the waist-shaped groove 10 to push the entire magnetic circuit body 31 into the first U-shaped groove 14 of the fixing block 1. The structure in which the pin 33 cooperates with the waist-shaped groove 10 can limit the upward and downward movement of the magnetic circuit body 31 during clamping.
[0060] Combination Figure 5 , Fig.10 , Fig.13As shown, the locking screw 4 includes a handle section 4a and a first connecting section 21 integrally formed with the handle section 4a; the outer cylindrical surface of the first connecting section 21 is provided with an external thread; the outer peripheral surface of the handle section 4a is provided with an anti-slip mesh; the end surface of the first connecting section 21 is provided with a first matching hole 20; a second threaded hole 15 is provided on one side wall of the first U-shaped groove 14; the first connecting section 21 of the locking screw 4 is screwed into the second threaded hole 15; the inner side end of the first connecting section 21 extends into the first U-shaped groove 14; the end surface of the pressing block 5 is integrally formed with a second connecting section 22; the second connecting section 22 of the pressing block 5 is pressed into the first matching hole 20 of the locking screw 4 to form an interference fit. In this embodiment, the pressing block 5 is made of plastic material to avoid damaging the magnetic circuit body 31.
[0061] An auxiliary device for laser penetration welding of a magnetic circuit portion, the use method of which comprises the following steps:
[0062] S1. Install the positioning module on the workbench of the laser penetration welding equipment and lock it to ensure that the positioning module is located uniquely on the welding equipment. Specifically, the positioning matching section 8b of the positioning column 8 is inserted into the positioning hole on the workbench of the laser penetration welding equipment for positioning, and the pressing block on the workbench is pressed on the pressing groove 7a at both ends of the base 7 for fixing, or the bolt is passed through the through hole at the bottom of the pressing groove 7a and then threadedly connected to the workbench for fixing.
[0063] S2, the workpiece to be welded is loaded into the fixed module, that is, the magnetic circuit body 31 and the two fixed plates 32 are loaded into the fixed module, such as Figure 4 The clamping process is as follows: lay the magnetic circuit body 31 flat so that the pin 33 is in a horizontal state, use the pin 33 to slide with the waist-shaped groove 10, push the entire magnetic circuit body 31 into the first U-shaped groove 14 of the fixing block 1, rotate the locking screw 4 to make the pressing block 5 support one end surface of the magnetic circuit body 31, respectively install the two fixing plates 32 into the positioning step grooves 19 of the two positioning pressing plates 2 and lock the standard screws 3 to achieve the position fixation of the two fixing plates 32 and the magnetic circuit body 31 before welding.
[0064] S3, placing the fixing module on the positioning module, and closing the mold by the second positioning pin 6, the first positioning pin 9 and the second positioning hole 12 and the first positioning hole 11 of the fixing block 1, so as to determine the position of the fixing module.
[0065] S4, start the welding equipment, control the laser to hit the welding position on the surface of the fixed plate 32 through the program, and realize the welding of the fixed plate 32 on one side;
[0066] S5 , flip the fixing module 180°, repeat steps S3 and S4 , and weld another fixing plate 32 .
[0067] S6. After welding is completed, loosen the standard screw 3 and the locking screw 4, and use the ejection tool to eject the workpiece from the square hole to obtain the magnetic circuit part after welding.
[0068] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An auxiliary device for laser penetration welding of magnetic circuit parts, characterized in that: The auxiliary device includes a positioning module and a fixing module movably mounted on the positioning module; The fixing module comprises a fixing block (1) and two positioning pressure plates (2); a first U-shaped groove (14) is arranged on the front side of the fixing block (1); the two positioning pressure plates (2) are respectively arranged at the upper and lower ends of the first U-shaped groove (14); the positioning pressure plates (2) are fastened to the fixing block (1) by standard screws (3); A locking screw (4) is screwed onto one side wall of the first U-shaped groove (14), and a pressing block (5) is arranged at the inner end of the locking screw (4).
2. An auxiliary device for laser penetration welding of magnetic circuit parts according to claim 1, characterized in that: The positioning module comprises a base (7) and a plurality of positioning pins arranged on the base (7); a plurality of positioning holes are arranged on the fixing block (1); the positioning holes are through holes penetrating from top to bottom; the positioning holes on the fixing block (1) are slidably matched with the positioning pins on the base (7); and the top ends of the positioning pins are all hemispherical.
3. An auxiliary device for laser penetration welding of magnetic circuit parts according to claim 2, characterized in that: The positioning pins include a first positioning pin (9) and a second positioning pin (6); The positioning holes include a first positioning hole (11) and a second positioning hole (12) located in two side walls of the first U-shaped groove (14); The upper half of the first positioning pin (9) is configured as a sixth connecting section (29) for slidingly cooperating with the first positioning hole (11); the upper half of the second positioning pin (6) is configured as a third connecting section (23) for slidingly cooperating with the second positioning hole (12); The diameter of the sixth connecting section (29) is greater than the diameter of the third connecting section (23).
4. An auxiliary device for laser penetration welding of magnetic circuit parts as claimed in claim 3, characterized in that: The first positioning hole (11) is a circular hole, and the second positioning hole (12) is a waist-shaped hole.
5. An auxiliary device for laser penetration welding of magnetic circuit parts according to claim 2, characterized in that: The positioning module also includes a positioning column (8); a third matching hole (26) is provided at the center of the base (7); the outer cylindrical surface of the positioning column (8) is stepped, and includes, from top to bottom, a limiting section (8a), a fifth connecting section (28), and a positioning matching section (8b); The positioning column (8) is inserted into the third matching hole (26) of the base (7), and the fifth connecting section (28) forms an interference fit with the third matching hole (26); the lower surface of the limiting section (8a) abuts against the top surface of the base (7); the positioning matching section (8b) extends from the lower surface of the base (7); and the edge of the lower end of the positioning matching section (8b) is provided with a chamfer.
6. An auxiliary device for laser penetration welding of magnetic circuit parts as claimed in claim 2, characterized in that: A pressing groove (7a) is provided on the top surface of the base (7) near the two ends, and a through hole is provided at the bottom of the pressing groove (7a).
7. An auxiliary device for laser penetration welding of magnetic circuit parts according to claim 1, characterized in that: The two ends of the positioning pressure plate (2) are integrally formed with a protrusion, and a through hole (17) is provided on the protrusion; the upper and lower ends of the two side walls of the first U-shaped groove (14) are respectively provided with a second U-shaped groove (16); the bottom of the second U-shaped groove (16) is provided with a first threaded hole (13); the protrusions at the two ends of the positioning pressure plate (2) extend into the second U-shaped groove (16), and the standard screw (3) passes through the through hole (17) on the protrusion and is screwed into the first threaded hole (13).
8. An auxiliary device for laser penetration welding of magnetic circuit parts as claimed in claim 1, characterized in that: Positioning step grooves (19) are respectively arranged on the opposing surfaces of the upper and lower positioning pressing plates (2) for positioning the fixing plate on the workpiece to be welded.
9. An auxiliary device for laser penetration welding of magnetic circuit parts according to claim 1, characterized in that: Waist-shaped grooves (10) are respectively arranged on the inner surfaces of the two side walls of the first U-shaped groove (14); the position of the waist-shaped groove (10) corresponds to the position of the pin on the workpiece to be welded, and the waist-shaped groove (10) is used to slide with the pin on the workpiece to be welded; a square hole (1a) is arranged on the back side of the fixing block (1), and the square hole (1a) penetrates into the first U-shaped groove (14).
10. An auxiliary device for laser penetration welding of magnetic circuit parts according to claim 1, characterized in that: The locking screw (4) comprises a handle section (4a) and a first connecting section (21) formed integrally with the handle section (4a); the outer cylindrical surface of the first connecting section (21) is provided with an external thread; the outer peripheral surface of the handle section (4a) is provided with an anti-slip mesh pattern; and the end surface of the first connecting section (21) is provided with a first matching hole (20); A second threaded hole (15) is provided on one side wall of the first U-shaped groove (14); the first connecting section (21) of the locking screw (4) is screwed into the second threaded hole (15); the inner end of the first connecting section (21) extends into the first U-shaped groove (14); A second connecting section (22) is integrally formed on the end surface of the pressing block (5); the second connecting section (22) of the pressing block (5) is pressed into the first matching hole (20) of the locking screw (4) to form an interference fit.