Alignment mechanism and welding tool

Abstract

The alignment mechanism is used for adjusting the position of an outflow chamber component relative to a motor component and comprises a base, a three-axis adjusting module arranged on the base and an outflow chamber limiting module arranged on the three-axis adjusting module. The outflow chamber limiting module comprises a support and a linkage cavity, the support is connected with the linkage cavity and the three-axis adjusting module, and the linkage cavity can rotate around the axis of the linkage cavity relative to the support. When the outflow chamber limiting module is adjusted by the three-axis adjusting module and then is aligned with the position of the motor component, the outflow chamber limiting module enables the outflow chamber component to abut against the motor component. The linkage cavity can rotate around the central axis of the linkage cavity relative to the support, so that a welding machine can conveniently clamp the motor component to conduct circumferential welding on the outflow chamber component and the motor component, and the outflow chamber component is stably kept in a coaxial state relative to the position of the motor component in the whole welding process; the problem of wall hitting caused by radial position deviation after the outflow chamber component is welded is effectively solved, and the welding efficiency and the product yield are improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a positioning mechanism and a welding tool. Background Art

[0002] As one of the treatment methods for end-stage heart failure and cardiogenic shock, interventional catheter pumps have the characteristics of low trauma and easy implantation, and have good therapeutic effects on high-risk patients. Currently, interventional catheter pumps mostly use axial flow pumps, which use the thrust of the rotating impeller blades to make the blood flow along the pump axis (flowing in through the metal parts of the inlet chamber and flowing out through the metal parts of the outflow chamber). Because the smaller the size of the catheter pump, the less blood flow damage, so while pursuing a small size motor, higher requirements are placed on the dimensional accuracy of the various components of the catheter pump and the matching accuracy between them.

[0003] Among them, the gap between the outflow chamber and the impeller is small and the fluctuation requirement is extremely high. When performing laser welding of the outflow chamber components and the motor components, a slight deviation will cause the gap between the impeller and the outflow chamber to be out of tolerance or even hit the wall, which places very high demands on the laser welding process and the skills of the production personnel.

[0004] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary technicians in this field need to solve urgently. Utility Model Content

[0005] The purpose of the present application is to provide a positioning mechanism and a welding tool, which can adjust the position of the outflow chamber component relative to the motor component to solve the problem of the outflow chamber component and the motor component being out of coaxial during welding; at the same time, it can also limit the outflow chamber component during welding to solve the problem of radial position offset and wall hit after welding of the outflow chamber component, thereby improving welding efficiency and product yield.

[0006] The technical solutions provided by this application are as follows:

[0007] A positioning mechanism, used to adjust the position of an outflow chamber component relative to a motor component, comprising:

[0008] A base, a three-axis adjustment module arranged on the base, and an outflow chamber limiting module arranged on the three-axis adjustment module;

[0009] The outflow chamber limiting module is used to fix the outflow chamber component, and the three-axis adjustment module is used to adjust the position of the outflow chamber limiting module, thereby adjusting the position of the outflow chamber component relative to the motor component;

[0010] The outflow chamber limiting module comprises a bracket and a linkage cavity, wherein the bracket is used to connect the linkage cavity and the three-axis adjustment module, the linkage cavity has an opening, and the linkage cavity can rotate around its own axis relative to the bracket;

[0011] When the outflow chamber limiting module is aligned with the position of the motor component, the outflow chamber component is installed in the linkage cavity, and at least one end of the outflow chamber component protrudes from the opening of the linkage cavity, and the outflow chamber limiting module presses the outflow chamber component against the motor component.

[0012] In some embodiments, the outflow chamber limiting module further includes a limiting block and a push rod;

[0013] One end of the push rod extends from one end of the linkage cavity away from the opening into the linkage cavity, and the other end of the push rod is located outside the linkage cavity; and one end of the limit block is movably arranged in the linkage cavity through the opening, suitable for abutting the push rod, and a limit groove is provided at one end of the limit block away from the push rod, and the limit groove is adapted to the radial profile size of the outflow chamber component;

[0014] When the outflow chamber limiting module is aligned with the position of the motor component, one end of the outflow chamber component is installed in the limiting groove, and the other end of the outflow chamber component extends out of the limiting block, and the push rod supports the limiting block so that the limiting block presses the outflow chamber component against the motor component.

[0015] In some embodiments, the push rod includes a connecting sleeve, a rod and a return spring;

[0016] The connecting sleeve is used for connecting with the linkage cavity, one end of the rod passes through the connecting sleeve and extends into the linkage cavity, and the rod and the connecting sleeve are connected by the return spring.

[0017] In some embodiments, a threaded hole penetrating into the interior of the linkage cavity is provided at one end of the linkage cavity away from the opening, and an external thread is provided on the outer wall of the connecting sleeve, and the connecting sleeve and the linkage cavity are connected by tightening with threads.

[0018] In some embodiments, the bracket is provided with a mounting hole extending along the axis of the linkage cavity and penetrating the bracket, and one end of the linkage cavity away from the opening is mounted in the mounting hole.

[0019] In some embodiments, a bearing groove is provided at one end of the bracket facing the linkage cavity corresponding to the circumference of the mounting hole, a rolling bearing is provided in the bearing groove, and an end of the linkage cavity away from the opening is embedded in the rolling bearing; and

[0020] A linear bearing is provided in the linkage cavity, and the limit block is nested in the linear bearing.

[0021] In some embodiments, the bottom of the limiting groove is a planar structure, and a polymer material layer is attached to the bottom of the limiting groove.

[0022] In some embodiments, the number of the limit grooves is at least two, which are arranged in sequence along the axis of the linkage cavity, and in every two adjacent limit grooves, the radial dimension of the limit groove close to the push rod is larger than the radial dimension of the limit groove away from the push rod.

[0023] In some embodiments, the three-axis adjustment module includes an x-axis adjustment module, a y-axis adjustment module and a z-axis adjustment module, the x-axis adjustment module is arranged above the base, the y-axis adjustment module is arranged above the x-axis adjustment module, the z-axis adjustment module is arranged above the y-axis adjustment module, and the outflow chamber limit module is arranged above the z-axis adjustment module.

[0024] The present application also provides a welding tool, comprising:

[0025] The fixture and the alignment mechanism provided by any of the above items;

[0026] The clamp is used to clamp the motor component, and the alignment mechanism is used to fix the outflow chamber component and adjust the outflow chamber component to a position coaxial with the motor component so that the outflow chamber component is pressed against the motor component.

[0027] The technical effects of this application are:

[0028] 1. In the present application, the three-axis adjustment module can adjust the position of the outflow chamber limit module so that it is aligned with the motor component; the outflow chamber component is installed on the outflow chamber limit module and pressed against the motor component under the action of the outflow chamber limit module, so as to weld the outflow chamber component and the motor component. Because the present application sets a linkage cavity on the outflow chamber limit module that can rotate around its own central axis relative to the bracket, the outflow chamber limit module can only limit the radial movement of the outflow chamber component, and cannot limit the rotation of the outflow chamber component around its own central axis. In this way, when the welding machine clamps the motor component for circumferential welding, the outflow chamber component can easily drive the linkage cavity and the associated structure to rotate with the motor component, so that the outflow chamber component can be stably maintained in a coaxial state relative to the motor component during the entire welding process, preventing the outflow chamber component from being deflected or shifted during welding, thereby solving the problem of radial position offset and wall hitting after welding of the outflow chamber component, and improving welding efficiency and product yield.

[0029] 2. The present application utilizes a push rod to press against the outflow chamber component, thereby pressing the outflow chamber component against the motor component. The push rod includes a connecting sleeve, a rod, and a return spring connecting the two. The return spring can keep the outflow chamber component and the motor component in contact for a long time. The operator does not need to manually press the rod to press the outflow chamber component against the motor component, which is highly practical. In addition, the return spring also realizes the elastic contact between the rod and the outflow chamber component, which can ensure that the outflow chamber component can be in close contact with the motor component to facilitate welding, and will not press the outflow chamber component too tightly, reducing the risk of damage to the outflow chamber component and the motor component due to excessive squeezing.

[0030] 3. In the present application, the number of the limiting grooves is at least two, and a top rod with a return spring is provided, so that the outflow chamber limiting module can adapt to outflow chamber components of different sizes, with a wide range of applications and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present application is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0032] Figure 1 is a schematic diagram of the three-dimensional structure of the alignment mechanism provided in an embodiment of the present application in one state;

[0033] Figure 2 It is a partial structural disassembly diagram of the alignment mechanism provided in the embodiment of the present application;

[0034] Figure 3 is a cross-sectional view of the outflow chamber limiting module provided in an embodiment of the present application;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the limit block provided in the embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the structure of the outflow chamber limit module, outflow chamber components, motor components and clamps provided in the embodiment of the present application;

[0037] Figure 6 is a side view of the alignment mechanism provided in the embodiment of the present application observed along the negative direction of the y-axis;

[0038] Figure 7 is a schematic diagram of the three-dimensional structure of the alignment mechanism provided in an embodiment of the present application in another state;

[0039] Figure 8 is a side view of the alignment mechanism provided in the embodiment of the present application observed along the positive direction of the x-axis;

[0040] Fig. 9 is a schematic diagram of the three-dimensional structure of the alignment mechanism provided in an embodiment of the present application in another state;

[0041] Fig.10 is a schematic diagram of the three-dimensional structure of the alignment mechanism provided in an embodiment of the present application in another state;

[0042] Fig.11 It is a schematic diagram of the three-dimensional structure of the base provided in the embodiment of the present application.

[0043] Description of Figure Numbers:

[0044] 100, base; 110, fixing hole;

[0045] 210, x-axis adjustment module; 211, first connecting member; 212, second connecting member; 220, y-axis adjustment module; 221, third connecting member; 230, z-axis adjustment module; 231, fourth connecting member; 232, fifth connecting member; 233, sixth connecting member; 234, cam; 2341, connecting portion; 2342, first abutting portion; 2343, second abutting portion; 2344, first linkage ball; 2345, second linkage ball; 235, connecting column; 236, seventh connecting member; 240, first slider; 250, second slider; 260, fixing bracket; 261, adjusting knob; 270, top screw; 280, locking washer; 281, waist-shaped hole; 282, locking nut;

[0046] 300, outflow chamber limit module; 310, bracket; 311, mounting hole; 312, bearing groove; 320, linkage cavity; 330, ejector rod; 331, connecting sleeve; 332, rod; 3321, handle; 340, limit block; 341, limit groove; 350, rolling bearing; 360, linear bearing;

[0047] 400, fixture;

[0048] 500, outflow chamber parts;

[0049] 600. Motor components. DETAILED DESCRIPTION

[0050] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0052] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0053] In this document, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral connection; or it can be a mechanical connection, or it can be an electrical connection; or it can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the embodiments shown in the drawings, directional indications (such as up, down, left, right, front, and back, etc.) are not absolute but relative when describing the structure and movement of each component, and are not used to limit the direction of the product in actual use.

[0055] In addition, in the description of the present application, ordinal numbers, such as "first", "second", etc., are only used to distinguish and describe related objects, and cannot be understood as indicating or implying the relative importance or order between the related objects.

[0056] See also Figure 1 and Figure 5 The present application provides a positioning mechanism for adjusting the position of the outflow chamber component 500 relative to the motor component 600, so that the outflow chamber component 500 can always remain coaxial with the motor component 600 during the welding process without radial displacement, so as to solve the problem that the outflow chamber component 500 and the motor component 600 are not coaxial during welding, and the problem of wall puncture due to radial position offset after welding of the outflow chamber component 500.

[0057] In one example embodiment, see Figure 1 and Figure 2, the alignment mechanism includes a base 100, a three-axis adjustment module arranged on the base 100, and an outflow chamber limiting module 300 arranged on the three-axis adjustment module. The outflow chamber limiting module 300 is used to fix the outflow chamber component 500, and the three-axis adjustment module is used to adjust the position of the outflow chamber limiting module 300, thereby adjusting the position of the outflow chamber component 500 relative to the motor component 600. Among them, the outflow chamber limiting module 300 may specifically include a bracket 310 and a linkage cavity 320, and the bracket 310 is used to connect the linkage cavity 320 and the three-axis adjustment module; the linkage cavity 320 has an opening for installing the outflow chamber component 500, and can rotate around its own axis relative to the bracket 310.

[0058] When the outflow chamber limiting module 300 is aligned with the position of the motor component 600, the outflow chamber component 500 is installed in the linkage cavity 320, and at least one end of the outflow chamber component 500 protrudes from the opening of the linkage cavity 320, so that the outflow chamber limiting module 300 can press the outflow chamber component 500 against the motor component 600, so as to laser weld the outflow chamber component 500 and the motor component 600. During the welding process, the linkage cavity 320 can limit the radial displacement of the outflow chamber component 500, so that the outflow chamber component 500 is maintained in a coaxial position with the motor component 600, so as to solve the problem that the outflow chamber component 500 and the motor component 600 are not coaxial during welding, which helps to improve welding efficiency and welding quality.

[0059] In addition, the linkage cavity 320 in this embodiment can rotate around its own central axis relative to the bracket 310, so that the outflow chamber limiting module 300 can only limit the radial displacement of the outflow chamber component 500, but cannot limit the rotation of the outflow chamber component 500 around its own central axis, which is conducive to the welding machine clamping the motor component 600 to perform circumferential welding on the outflow chamber component 500 and the motor component 600.

[0060] Specifically, when the welding machine clamps the motor component 600 for circular welding, the outflow chamber component 500 can easily drive the linkage cavity 320 and the related structure to rotate along with the motor component 600, so that the outflow chamber component 500 can be stably maintained in a coaxial state relative to the motor component 600 during the entire welding process, preventing the outflow chamber component 500 from being skewed or shifted during welding, thereby solving the problem of radial position offset and wall hitting of the outflow chamber component after welding, thereby improving welding efficiency and product yield.

[0061] Specifically, see Figure 2 and Figure 3The outflow chamber limit module 300 also includes a limit block 340 and a push rod 330. One end of the push rod 330 extends from the end of the linkage cavity 320 away from the opening to the interior of the linkage cavity 320, and the other end of the push rod 330 is located outside the linkage cavity 320; one end of the limit block 340 is movably inserted into the linkage cavity 320 through the opening, suitable for abutting the push rod 330, and a limit groove 341 is provided at the end of the limit block 340 away from the push rod 330, and the limit groove 341 is adapted to the radial profile size of the outflow chamber component 500.

[0062] In this embodiment, one end of the outflow chamber component 500 is suitable for being installed in the limiting groove 341, and the other end of the outflow chamber component 500 extends out of the limiting block 340. The operator can adjust the push rod 330 through the end of the push rod 330 located outside the linkage cavity 320, so that it can push the limiting block 340, and then the end of the outflow chamber component 500 extending out of the limiting block 340 is pressed against the motor component 600. Among them, the limiting groove 341 preferably has a flat surface suitable for abutting the end of the outflow chamber component 500, that is, the bottom of the limiting groove 341 is a flat structure. In this way, only when the end of the outflow chamber component 500 is flush with the limiting groove 341, the outflow chamber component 500 can be installed in the limiting groove 341, which further ensures that the outflow chamber component 500 is in a coaxial state with the motor component 600 during the welding process. If the outflow chamber component 500 is not installed in the correct position or has an angle deviation, the outflow chamber component 500 cannot be completely matched with the limiting groove 341, which effectively reduces the risk of the outflow chamber component 500 being deflected or shifted during welding.

[0063] In a preferred embodiment, see Figure 3 , connecting sleeve 331, rod 332 and return spring (not shown), the connecting sleeve 331 is used to connect the linkage cavity 320, one end of the rod 332 passes through the connecting sleeve 331 and extends into the linkage cavity 320, the rod 332 and the connecting sleeve 331 are connected by the return spring ( Figure 3 The internal structure of the top rod 330 is omitted and not shown).

[0064] Among them, a threaded hole penetrating into the interior of the linkage cavity 320 is provided at one end of the linkage cavity 320 away from the opening, and an external thread is provided on the outer wall of the connecting sleeve 331, and the connecting sleeve 331 and the linkage cavity 320 are connected by tightening with threads.

[0065] In this embodiment, the push rod 330 adopts a knurled reset pin structure. When the operator pulls the rod 332 away from the linkage cavity 320, the return spring is compressed and deformed. Once the operator releases the rod 332, the rod 332 will move toward the limit block 340 under the rebound action of the return spring.

[0066] Specifically, the operator first uses the three-axis adjustment module to align the outflow chamber limit module 300 with the motor component 600 to be welded (the motor component 600 has been arranged in a preset position through other structures), and then installs the outflow chamber component 500 in the limit groove 341. Then, the rear pull rod 332 adjusts the position of the limit groove 341 and the outflow chamber component 500 thereon, and loosens the rod 332. Under the action of the return spring, the rod 332 is pressed against one end of the limit block 340 that passes through the linkage cavity 320, thereby pressing the outflow chamber component 500 against the motor component 600 to be welded, so that the outflow chamber component 500 can be in the correct position to facilitate welding, thereby achieving the fixing and limiting of the outflow chamber component 500 by the outflow chamber limit module 300. Among them, the push rod 330, the linkage cavity 320 and the limit block 340 are preferably coaxially arranged.

[0067] This embodiment, by providing a return spring that can connect the rod 332 and the connecting sleeve 331, can, on the one hand, keep the outflow chamber component 500 and the motor component 600 in contact for a long time, and the operator does not need to manually press the rod 332 to press the outflow chamber component 500 against the motor component, which is highly practical. On the other hand, the return spring also realizes the elastic contact between the rod 332 and the outflow chamber component 500, which can ensure that the outflow chamber component 500 can be in close contact with the motor component 600, which is convenient for welding, and will not press the outflow chamber component 500 too tightly, thereby reducing the risk of damage to the outflow chamber component 500 and the motor component 600 due to excessive squeezing.

[0068] Specifically, see Figure 2 and Figure 3 One end of the rod 332 outside the linkage cavity 320 is connected to a handle 3321, and the operator can pull the rod 332 through the handle 3321, which is convenient for operation.

[0069] In a specific embodiment, see Figure 3 The bracket 310 is provided with a mounting hole 311 extending along the axis of the linkage cavity 320 and penetrating the bracket 310. At this time, the end of the linkage cavity 320 away from the opening can be installed in the mounting hole 311, and the through mounting hole 311 structure is also conducive to the ejector rod 330 being connected to the linkage cavity 320 from the side of the bracket 310 away from the linkage cavity 320, and the structural setting is reasonable and practical.

[0070] Preferably, a bearing groove 312 is provided on the side of the mounting hole 311 corresponding to one end of the bracket 310 facing the linkage cavity 320, and a rolling bearing 350 is provided in the bearing groove 312. The outer wall surface of the end of the linkage cavity 320 away from the opening is in a step structure, and is nested and fixed in the rolling bearing 350. When the linkage cavity 320 rotates with the outflow chamber component 500, the rolling bearing 350 also rotates with the outflow chamber component 500, so that the linkage cavity 320 can rotate more smoothly relative to the bracket 310.

[0071] In contrast, a linear bearing 360 is disposed in the linkage cavity 340 , and the limit block 340 is nested in the linear bearing 360 , so that the limit block 340 can slide more smoothly relative to the linkage cavity 320 .

[0072] In a preferred embodiment, a polymer material layer is attached to the bottom of the planar structure of the limit groove 341, and the polymer material layer can specifically be a TPU (thermoplastic polyurethane elastomer) polymer material layer, which can increase the friction and linkage between the outflow chamber component 500 and the limit groove 341. In this way, when the welding machine clamps the motor component 600 for circumferential welding, due to the good friction between the outflow chamber component 500 and the limit groove 341 and the low friction performance of the rolling bearing 350, the outflow chamber component 500 can more easily drive the limit block 340, the linear bearing 360, the linkage cavity 320, and the push rod 330 to rotate together when following the rotation of the motor component 600, so that the outflow chamber component 500 can be stably maintained in a coaxial state with the motor part during the entire welding process, preventing the outflow chamber component 500 from being skewed or shifted during welding.

[0073] Further, see Figure 3 and Figure 4 The number of the limiting grooves 341 is at least two, which are arranged in sequence along the central axis of the linkage cavity 320 to form a stepped groove structure. Among them, in each adjacent two limiting grooves 341, the radial contour size of the limiting groove 341 close to the bracket 310 is greater than the radial contour size of the limiting groove 341 away from the bracket 310.

[0074] In this embodiment, a plurality of limiting grooves 341 are provided so that the outflow chamber limiting module 300 can adapt to outflow chamber components 500 of different sizes, and has a wide range of applications and strong practicality.

[0075] Specifically, see Figure 1 The three-axis adjustment module includes an x-axis adjustment module 210, a y-axis adjustment module 220 and a z-axis adjustment module 230. The operator can move the outflow chamber limit module 300 on the x-axis, y-axis and z-axis by adjusting the x-axis adjustment module 210, the y-axis adjustment module 220 and the z-axis adjustment module 230, thereby changing the position of the outflow chamber limit module 300.

[0076] In actual production, the arrangement of the x-axis adjustment module 210, the y-axis adjustment module 220 and the z-axis adjustment module 230 in the three-axis adjustment module is not limited. The x-axis adjustment module 210 can be arranged above the base 100, the y-axis adjustment module 220 can be arranged above the x-axis adjustment module 210, and the z-axis adjustment module 230 can be arranged above the y-axis adjustment module 220; the x-axis adjustment module 210 can be arranged above the base 100, the z-axis adjustment module 230 can be arranged above the x-axis adjustment module 210, and the y-axis adjustment module 220 can be arranged above the z-axis adjustment module 230; or the y-axis adjustment module 220 can be arranged above the base 100, the x-axis adjustment module 210 can be arranged above the y-axis adjustment module 220, and the z-axis adjustment module 230 can be arranged above the x-axis adjustment module 210, and the x-axis adjustment module 210 can be arranged above the y-axis adjustment module 220, and the z-axis adjustment module 230 can be arranged above the x-axis adjustment module 210, and the like. They will not be elaborated here one by one, and they are all within the protection scope of the present application.

[0077] Among them, see Figure 1 Taking the example that the x-axis adjustment module 210 is arranged above the base 100 , the y-axis adjustment module 220 is arranged above the x-axis adjustment module 210 , and the z-axis adjustment module 230 is arranged above the y-axis adjustment module 220 , at this time, the outflow chamber limit module 300 is preferably arranged above the z-axis adjustment module 230 .

[0078] In a specific embodiment, see Figure 1 and Figure 6 , the x-axis adjustment module 210 includes a first connecting member 211, a second connecting member 212, an adjustment knob 261 and a return spring (not shown). The first connecting member 211 is fixed to the base 100, and a first slider 240 is provided on the side of the first connecting member 211 away from the base 100, and a second slider 250 is provided on the second connecting member 212. The first slider 240 and the second slider 250 both extend along the x-axis direction, and the first slider 240 and the second slider 250 are slidably matched to slide the second connecting member 212 to the first connecting member 211. The first connecting member 211 is provided with a fixing frame 260, and an adjustment knob 261 is installed on the fixing frame 260, and a top screw 270 is provided on the second connecting member 212, and the front end of the adjustment knob 261 is suitable for contacting the top screw 270, and one end of the return spring is connected to the first connecting member 211, and the other end is connected to the second connecting member 212.

[0079] The structure of the adjusting knob 261 is similar to that of a screw, and a threaded hole is provided on the fixing frame 260, which can be threadedly matched with the adjusting knob 261. When the operator screws the adjusting knob 261 in the direction of the top screw 270, the adjusting knob 261 can push the top screw 270 to move away from the fixing frame 260, thereby driving the second slider 250 to slide along the x-axis away from the fixing frame 260 relative to the first slider 240, and then driving the second connecting member 212 to move away from the first connecting member 211 (the positive direction of the x-axis); conversely, when the operator screws the adjusting knob 261 out in the direction away from the top screw 270, the second connecting member 212 moves toward the first connecting member 211 (the negative direction of the x-axis) under the elastic force of the return spring, and drives the second slider 250 to slide along the x-axis toward the fixing frame 260 relative to the first slider 240. Due to the structural tension of the return spring, the front end of the adjusting knob 261 always keeps in contact with the top screw 270.

[0080] In this embodiment, by providing an adjusting knob 261, a top screw 270 that can be pushed by the adjusting knob 261, and a return spring that can drive the top screw 270 to return to its initial state, the operator only needs to screw in or out the adjusting knob 261 to adjust the position of the second connecting member 212 on the x-axis, thereby changing the position of the y-axis adjustment module 220, the z-axis adjustment module 230 and the outflow chamber limit module 300 fixed on the upper part of the x-axis adjustment module 210 on the x-axis, and the operation is simple and convenient.

[0081] Furthermore, the x-axis adjustment module 210 further includes a locking nut 282, wherein a locking washer 280 is provided on one side of the first connecting member 211 in the y-axis direction, a waist-shaped hole 281 extending along the x-axis direction is provided on the locking washer 280, and a threaded hole is provided on the side of the second connecting member 212 facing the locking washer 280. In this way, the locking nut 282 can pass through the waist-shaped hole 281 and threadedly engage with the threaded hole, and move with the second connecting member 212 when the second connecting member 212 moves relative to the first connecting member 211. When the second connecting member 212 moves to a specified position relative to the first connecting member 211, that is, the operator adjusts the outflow chamber component 500 to a position flush with the motor component 600 in the x-axis direction through the x-axis adjustment module 210, tightening the locking nut 282 can fix the second connecting member 212 and the locking gasket 280 to limit the relative displacement of the first connecting member 211 and the second connecting member 212 in the x-axis, thereby ensuring that the position of the outflow chamber component 500 in the x-axis direction is stable and does not shift during the welding process, which helps to improve welding efficiency and welding quality.

[0082] Specifically, see Figure 7 and Figure 8, the y-axis adjustment module 220 includes a third connecting member 221, an adjustment knob 261 and a return spring (not shown), a first slider 240 is provided on the side of the second connecting member 212 away from the first connecting member 211, and a second slider 250 is provided on the third connecting member 221. The first slider 240 and the second slider 250 both extend along the y-axis direction, and the first slider 240 and the second slider 250 are slidably matched to slidably connect the third connecting member 221 to the second connecting member 212. The second connecting member 212 is provided with a fixing frame 260, on which an adjustment knob 261 is installed, and a top screw 270 is provided on the third connecting member 221, and the front end of the adjustment knob 261 is suitable for contacting the top screw 270, and one end of the return spring is connected to the second connecting member 212, and the other end is connected to the third connecting member 221.

[0083] In contrast, the structure of the adjusting knob 261 in this embodiment is similar to that of a screw, and a threaded hole is provided on the fixing frame 260, which can be threadedly matched with the adjusting knob 261. When the operator screws the adjusting knob 261 in the direction of the top screw 270, the adjusting knob 261 can push the top screw 270 to move away from the fixing frame 260, thereby driving the second slider 250 to slide along the y-axis away from the fixing frame 260 relative to the first slider 240, and then driving the third connecting member 221 to move away from the second connecting member 212 (the positive direction of the y-axis); when the operator screws the adjusting knob 261 out in the direction away from the top screw 270, the third connecting member 221 moves toward the second connecting member 212 (the negative direction of the y-axis) under the elastic force of the return spring, and drives the second slider 250 to slide along the y-axis toward the fixing frame 260 relative to the first slider 240. Due to the structural tension of the return spring, the front end of the adjusting knob 261 always keeps in contact with the top screw 270.

[0084] Similarly, in this embodiment, by providing an adjusting knob 261, a top screw 270 that can be pushed by the adjusting knob 261, and a return spring that can drive the top screw 270 to return to its initial state, the operator only needs to screw in or out the adjusting knob 261 to adjust the position of the third connecting member 221 on the y-axis, thereby changing the position of the z-axis adjustment module 230 fixed on the upper part of the y-axis adjustment module 220 and the outflow chamber limit module 300 on the y-axis, which is simple and convenient to operate.

[0085] Specifically, the y-axis adjustment module 220 further includes a locking nut 282, a locking washer 280 is provided on one side of the second connecting member 212 in the x-axis direction, a waist-shaped hole 281 extending along the y-axis direction is provided on the locking washer 280, and a threaded hole is provided on the side of the third connecting member 221 facing the locking washer 280. In this way, the locking nut 282 can pass through the waist-shaped hole 281 and threadedly engage with the threaded hole, and move with the third connecting member 221 when the third connecting member 221 moves relative to the second connecting member 212. When the third connecting member 221 moves to a specified position relative to the second connecting member 212, that is, the operator adjusts the outflow chamber component 500 to a position close to the motor component 600 in the y-axis direction through the y-axis adjustment module 220, tightening the locking nut 282 can fix the third connecting member 221 and the locking gasket 280 to limit the relative displacement of the second connecting member 212 and the third connecting member 221 in the y-axis, thereby ensuring that the position of the outflow chamber component 500 in the y-axis direction is stable and does not shift during the welding process, which helps to improve welding efficiency and welding quality.

[0086] In a preferred embodiment, see Fig. 9 and Fig.10 The z-axis adjustment module 230 includes a fourth connection member 231, a fifth connection member 232, a sixth connection member 233, an adjustment knob 261, and a return spring (not shown). The fourth connection member 231 is fixed to the upper part of the y-axis adjustment module 220, and a first slider 240 is provided on the side of the fourth connection member 231 away from the y-axis adjustment module 220. The fifth connection member 232 is provided with a second slider 250, and the first slider 240 and the second slider 250 both extend along the z-axis direction, and the first slider 240 and the second slider 250 are slidably matched to slidably connect the fifth connection member 232 to the fourth connection member 231. Among them, the sixth connecting member 233 is fixedly connected to the first slider 240, the fourth connecting member 231 is provided with a fixing frame 260, and an adjusting knob 261 is installed on the fixing frame 260, the sixth connecting member 233 is provided with a rotatable cam 24, and the fifth connecting member 232 is provided with a connecting column 235, the front end of the adjusting knob 261 and the connecting column 235 are suitable for contacting the cam 24, and a return spring is provided between the fourth connecting member 231 and the fifth connecting member 232.

[0087] The structure of the adjusting knob 261 in this embodiment is similar to a screw rod, and a threaded hole is provided on the fixing frame 260, which can be threadedly matched with the adjusting knob 261. When the operator screws the adjusting knob 261 in the direction of the cam 24, the cam 24 rotates and drives the connecting column 235 to move in the direction away from the fourth connecting member 231, thereby driving the second slider 250 to slide along the z-axis relative to the first slider 240 in the direction away from the fourth connecting member 231, and then drives the fifth connecting member 232 to move in the direction away from the fourth connecting member 231 (the positive direction of the z-axis); when the operator screws out the adjusting knob 261 in the direction away from the cam 24, the fifth connecting member 232 moves in the direction of the fourth connecting member 231 (the negative direction of the z-axis) under the elastic force of the return spring, and at this time, the connecting column 235 presses down and pushes the cam 24 to rotate. Due to the structural tension of the return spring, the front end of the adjusting knob 261 and the connecting column 235 always keep in contact with the cam 24.

[0088] In this embodiment, by providing an adjusting knob 261, a cam 24 that can be pushed by the adjusting knob 261, and a return spring that can drive the cam 24 to return to its initial state, the operator only needs to screw in or out the adjusting knob 261 to adjust the position of the fifth connecting member 232 on the z-axis, thereby changing the position of the outflow chamber limit module 300 fixed on the upper part of the z-axis adjustment module 230 on the z-axis, and the operation is simple and convenient.

[0089] It is worth noting that the structure of the z-axis adjustment module 230 provided in this embodiment is different from the structures of the x-axis adjustment module 210 and the y-axis adjustment module 220. If a structure similar to the x-axis adjustment module 210 and the y-axis adjustment module 220 is adopted, a fixing frame 260 is provided on the fourth connecting member 231 or the fifth connecting member 232, an adjusting knob 261 is installed on the fixing frame 260, and a top screw 270 is provided on the fifth connecting member 232 or the fourth connecting member 231, and the adjustment knob 261 is moved along the z-axis direction to achieve the adjustment of the position of the outflow chamber component 500 on the z-axis. In this embodiment, the movement of the adjustment knob 261 along the z-axis direction is converted into movement along the x-axis or y-axis direction by introducing the cam 24, so that the adjustment knob 261 on the z-axis adjustment module 230 can be adjacent to the position of the adjustment knob 261 on the x-axis adjustment module 210 provided on the three-axis adjustment module, and the adjustment knob 261 on the x-axis adjustment module 210 provided on the x-axis adjustment module 210, which is more conducive to the operator to quickly adjust the position of the outflow chamber component 500 through the adjustment knob 261, and the structural setting is more reasonable.

[0090] Specifically, see Fig. 9 and Fig.10The cam 24 includes a connecting portion 2341 and a first abutting portion 2342 and a second abutting portion 2343 provided on the connecting portion 2341. The connecting portion 2341 is used to rotatably connect the first abutting portion 2342 and the second abutting portion 2343 to the sixth connecting member 233, and the first abutting portion 2342 and the second abutting portion 2343 are arranged at an angle. When the operator rotates the adjusting knob 261 in the direction of the cam 24, the adjusting knob 261 pushes the first abutting portion 2342 to drive the cam 24 to rotate, thereby driving the second abutting portion 2343 to lift up, and then driving the connecting column 235 to move away from the fourth connecting member 231; when the operator rotates the adjusting knob 261 out in the direction away from the cam 24, the connecting column 235 on the fifth connecting member 232 moves toward the fourth connecting member 231 under the elastic force of the return spring, pushing the second abutting portion 2343 downward and thereby driving the cam 24 to rotate. At this time, the first abutting portion 2342 will move toward the adjusting knob 261 and abut against the front end of the adjusting knob 261.

[0091] Specifically, a first linkage ball 2344 is provided at one end of the first abutting portion 2342 away from the second abutting portion 2343, and the first linkage ball 2344 abuts against the adjusting knob 261. In contrast, a second linkage ball 2345 is provided at one end of the second abutting portion 2343 away from the first abutting portion 2342, and the second linkage ball 2345 abuts against the connecting column 235.

[0092] Furthermore, the z-axis adjustment module 230 also includes a locking nut 282, and the second slider 250 on the z-axis adjustment module 230 is provided with a seventh connecting member 236. The sixth connecting member 233 is provided with a locking washer 280 on one side in the x-axis or y-axis direction, and a waist-shaped hole 281 extending along the z-axis direction is provided on the locking washer 280, and a threaded hole is provided on the side of the seventh connecting member 236 facing the locking washer 280. In this way, the locking nut 282 can pass through the waist-shaped hole 281 and threadedly engage with the threaded hole, and move with the seventh connecting member 236 when the seventh connecting member 236 moves relative to the sixth connecting member 233. When the seventh connecting member 236 follows the second slider 250 to move to a specified position relative to the sixth connecting member 233, that is, when the operator adjusts the outflow chamber component 500 to a position flush with the motor component 600 in the z-axis direction through the z-axis adjustment module 230, tightening the locking nut 282 can fix the seventh connecting member 236 and the locking gasket 280 to limit the relative displacement of the seventh connecting member 236 and the sixth connecting member 233 in the z-axis, thereby ensuring that the position of the outflow chamber component 500 in the z-axis direction is stable and does not shift during the welding process, which helps to improve welding efficiency and welding quality.

[0093] See also Figure 1 and Figures 6 to 10The x-axis adjustment module 210, y-axis adjustment module 220 and z-axis adjustment module 230 provided in all the above embodiments are all adjusted by the adjustment knob 261, and the adjustment is more accurate and stable. On this basis, a scale line can be set on the adjustment knob 261, which is more conducive to the operator to accurately control the moving distance of the adjustment knob 261.

[0094] Of course, in actual production, the above-mentioned adjustment knob 261 can also be replaced with a push-pull rod structure, which can also achieve the position adjustment of the outflow chamber component 500, which is not limited here and is within the protection scope of this application. Relatively speaking, a scale line can also be set on the push-pull rod structure so that the operator can accurately control the moving distance of the adjustment knob 261.

[0095] Further, in all the above embodiments, the number of the first slider 240 and the second slider 250 may be one, and the first slider 240 and the second slider 250 are both provided with a slide groove extending along the length direction thereof, and a sliding fitting, such as a ball, is provided between the slide groove on the first slider 240 and the slide groove on the second slider 250. Alternatively, the number of the first slider 240 is two, and the number of the second slider 250 is one, the two first sliders 240 are respectively arranged on opposite sides of the second slider 250, and the sides of the two first sliders 240 close to each other are both provided with a first slide groove extending along the length direction thereof, and the sides of the second slide groove close to the first slider 240 are both provided with a second slide groove extending along the length direction thereof, and a sliding fitting, such as a ball, is provided between the first slide groove and the second slide groove. In addition, the number of the first slider 240 and the second slider 250 can also be two, each first slider 240 is slidably matched with a second slider 250, and each first slider 240 and the corresponding second slider 250 are respectively provided with a first slide groove and a second slide groove extending along their own length direction on one side close to each other, and a sliding matching member, such as a ball, is provided between the first slide groove and the second slide groove. The two first sliders 240 are preferably symmetrically arranged, and the two second sliders 250 are also preferably symmetrically arranged.

[0096] Of course, in actual production, the number and layout of the first slider 240 and the second slider 250 are not limited to the above-mentioned cases, which will not be elaborated here, and are all within the protection scope of this application.

[0097] Specifically, see Fig.11The base 100 of the alignment mechanism is provided with a fixing hole 110, through which a fastener can fix the alignment mechanism on the laser welding machine workbench. For example, a bolt structure is used to pass through the fixing hole 110 and the corresponding opening on the laser welding machine workbench to fix the alignment mechanism. Of course, in actual production, fasteners can also be screws, rivets, etc., which are not limited here. As long as the base 100 and the laser welding machine workbench can be fixed, they are all within the protection scope of this application.

[0098] In a specific embodiment, the base 100 is in a rectangular plate-like structure, and the number of fixing holes 110 is four, which are respectively arranged at the four corners of the base 100, so as to stably fix the alignment mechanism on the workbench of the laser welding machine.

[0099] The present application also provides a welding tool, see Figure 5 , including a fixture 400 and an alignment mechanism provided by any of the above embodiments. The fixture 400 is used to clamp the motor component 600, specifically a three-jaw chuck on a welding machine; the alignment mechanism is used to fix the outflow chamber component 500 and adjust the outflow chamber component 500 to a position coaxial with the motor component 600, so that the outflow chamber component 500 is pressed against the motor component 600, which facilitates the laser welding of the outflow chamber component 500 and the motor component 600. At the same time, the outflow chamber limit module 300 on the alignment mechanism can limit the deflection or displacement of the outflow chamber component 500 during welding, so that it can stably maintain a coaxial state with the motor component 600, thereby improving the welding efficiency and welding quality of the welding tooling.

[0100] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0101] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A positioning mechanism for adjusting the position of an outflow chamber component relative to a motor component, characterized in that: include: A base, a three-axis adjustment module arranged on the base, and an outflow chamber limiting module arranged on the three-axis adjustment module; The outflow chamber limiting module is used to fix the outflow chamber component, and the three-axis adjustment module is used to adjust the position of the outflow chamber limiting module, thereby adjusting the position of the outflow chamber component relative to the motor component; The outflow chamber limiting module comprises a bracket and a linkage cavity, wherein the bracket is used to connect the linkage cavity and the three-axis adjustment module, the linkage cavity has an opening, and the linkage cavity can rotate around its own axis relative to the bracket; When the outflow chamber limiting module is aligned with the position of the motor component, the outflow chamber component is installed in the linkage cavity, and at least one end of the outflow chamber component protrudes from the opening of the linkage cavity, and the outflow chamber limiting module presses the outflow chamber component against the motor component.

2. The alignment mechanism according to claim 1, characterized in that: The outflow chamber limiting module also includes a limiting block and a push rod; One end of the push rod extends from one end of the linkage cavity away from the opening into the linkage cavity, and the other end of the push rod is located outside the linkage cavity; and one end of the limit block is movably arranged in the linkage cavity through the opening, suitable for abutting the push rod, and a limit groove is provided at one end of the limit block away from the push rod, and the limit groove is adapted to the radial profile size of the outflow chamber component; When the outflow chamber limiting module is aligned with the position of the motor component, one end of the outflow chamber component is installed in the limiting groove, and the other end of the outflow chamber component extends out of the limiting block, and the push rod supports the limiting block so that the limiting block presses the outflow chamber component against the motor component.

3. The alignment mechanism according to claim 2, characterized in that: The push rod comprises a connecting sleeve, a rod and a return spring; The connecting sleeve is used for connecting with the linkage cavity, one end of the rod passes through the connecting sleeve and extends into the linkage cavity, and the rod and the connecting sleeve are connected by the return spring.

4. The alignment mechanism according to claim 3, characterized in that: A threaded hole penetrating into the interior of the linkage cavity is provided at one end of the linkage cavity away from the opening, and an external thread is provided on the outer wall of the connecting sleeve. The connecting sleeve and the linkage cavity are connected by tightening the threads.

5. The alignment mechanism according to claim 3, characterized in that: The bracket is provided with a mounting hole extending along the axis of the linkage cavity and penetrating the bracket, and one end of the linkage cavity away from the opening is mounted in the mounting hole.

6. The alignment mechanism according to claim 5, characterized in that: A bearing groove is provided at one end of the bracket facing the linkage cavity corresponding to the peripheral side of the mounting hole, a rolling bearing is provided in the bearing groove, and an end of the linkage cavity away from the opening is embedded in the rolling bearing; and A linear bearing is provided in the linkage cavity, and the limit block is nested in the linear bearing.

7. The alignment mechanism according to claim 2, characterized in that: The bottom of the limiting groove is a planar structure, and a polymer material layer is attached to the bottom of the limiting groove.

8. The alignment mechanism according to any one of claims 2 to 7, characterized in that: The number of the limiting grooves is at least two, which are arranged in sequence along the axis of the linkage cavity, and in every two adjacent limiting grooves, the radial dimension of the limiting groove close to the push rod is greater than the radial dimension of the limiting groove away from the push rod.

9. The alignment mechanism according to any one of claims 1 to 7, characterized in that: The three-axis adjustment module includes an x-axis adjustment module, a y-axis adjustment module and a z-axis adjustment module. The x-axis adjustment module is arranged above the base, the y-axis adjustment module is arranged above the x-axis adjustment module, the z-axis adjustment module is arranged above the y-axis adjustment module, and the outflow chamber limit module is arranged above the z-axis adjustment module.

10. A welding tool, characterized in that: include: A clamp and a positioning mechanism as claimed in any one of claims 1 to 9; The clamp is used to clamp the motor component, and the alignment mechanism is used to fix the outflow chamber component and adjust the outflow chamber component to a position coaxial with the motor component so that the outflow chamber component is pressed against the motor component.

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